JP7173064B2 - thermal management system - Google Patents

Description

The present disclosure relates to a thermal management system, and is suitable for use in a vehicle that obtains driving force for vehicle travel from a travel electric motor.

Conventionally, for example, the technique of Patent Document 1 is known as a technique of a heat management system applied to an electric vehicle that obtains driving force for vehicle traveling from a traveling electric motor. In the vehicle heat pump air conditioner disclosed in Patent Document 1, waste heat generated by an electric motor for driving a vehicle and a controller for the electric motor is recovered through cooling water in a cooling water circuit and used as a heat source for heating the vehicle interior. ing.

JP-A-07-101227

However, in the configuration of Patent Document 1, the heat of the cooling water in the cooling water circuit is pumped up by a vapor compression heat pump and used for heating the passenger compartment. At this time, the cooling water in the cooling water circuit and the refrigerant in the heat pump need to be heat-exchanged, so when heat is transferred from the cooling water to the refrigerant, heat loss occurs due to heat exchange efficiency and the like.

In addition, in order to use waste heat from a heat-generating device mounted on a vehicle such as an electric motor as a heat source for heating, it is necessary to operate a compressor that constitutes a heat pump. Therefore, when using the waste heat of the heat-generating equipment as a heating heat source, it is desirable to suppress the amount of operation of the compressor as much as possible.

The present disclosure has been made in view of these points, and an object thereof is to provide a heat management system that can further improve the efficiency of using waste heat from heat-generating equipment to heat a passenger compartment.

A heat management system according to an aspect of the present disclosure includes a high temperature side heat medium circuit (10), a low temperature side heat medium circuit (15), a circuit connection section (25), and a circuit switching section (70c). ing.

The high temperature side heat medium circuit connects the heat medium refrigerant heat exchanger (12) and the heater core (11) so that the heat medium can circulate. The heat medium refrigerant heat exchanger adjusts the temperature of the heat medium by exchanging heat with the refrigerant circulating in the refrigeration cycle (40). The heater core radiates the heat of the heat medium to the air that is blown into the air-conditioned space.

The low temperature heat medium circuit connects the radiator (17) and the heat generating device (16) so that the heat medium can circulate. The radiator radiates the heat of the heat medium to the outside air. The heat-generating device generates heat as it operates, and its temperature is adjusted by the heat of the heat medium.

The circuit connecting portion connects the high temperature side heat medium circuit and the low temperature side heat medium circuit so that the heat medium can flow in and out. The circuit switching section switches the flow of the heat medium in the high temperature side heat medium circuit, the low temperature side heat medium circuit, and the circuit connection section.

The heat management system has an operation mode in which the heat medium heated by the heat medium-refrigerant heat exchanger circulates through the heater core, and an operation mode in which the heat medium heated by the heat-generating equipment and the heat medium-refrigerant heat exchanger circulates through the heater core. The circuit switching unit switches to an operation mode that circulates so as to pass through. Furthermore, the refrigerating cycle has an outdoor heat exchanger (43) for exchanging heat between refrigerant and outside air. The heat management system circulates the heat medium through the heat medium-refrigerant heat exchanger and the heater core, and is switched to an operation mode in which the heat medium flows into and out of the heat-generating equipment is restricted by the circuit switching unit. At this time, the heat of the heat medium is absorbed by the heat medium-refrigerant heat exchanger and supplied to the outdoor heat exchanger.

According to this, by circulating the heat medium heated by the heat medium-refrigerant heat exchanger through the heater core, it is possible to heat the air-conditioned space using the refrigeration cycle. By circulating the heat medium heated by the heat-generating equipment and the heat-medium-refrigerant heat exchanger through the heater core, the waste heat of the heat-generating equipment is used to heat the blown air via the heat medium.

In other words, according to the heat management system, the waste heat of the heat-generating equipment can be used to heat the air-conditioned space without passing through the refrigerant of the refrigeration cycle. Efficiency can be improved.

In addition, by circulating the heat medium heated by the heat-generating equipment and the heat-medium refrigerant heat exchanger through the heater core and utilizing the waste heat of the heat-generating equipment for heating, the operating amount of the refrigeration cycle (for example, compression machine operating amount) can be kept low. As a result, the heat management system can improve the heating efficiency of the air-conditioned space in terms of energy consumption.

It should be noted that the reference numerals in parentheses of each means described in this column and claims indicate the correspondence with specific means described in the embodiments described later.

1 is an overall configuration diagram of a heat management system according to a first embodiment; FIG. 1 is a configuration diagram of a refrigeration cycle that constitutes a heat management system; FIG. 1 is a schematic overall configuration diagram of an indoor air conditioning unit in a heat management system; FIG. 2 is a block diagram showing a control system of the heat management system according to the first embodiment; FIG. FIG. 4 is an explanatory diagram showing refrigerant flow in a heating mode of a refrigerating cycle; FIG. 4 is an explanatory diagram of a first operation mode of the heat management system according to the first embodiment; FIG. 4 is an explanatory diagram of a second operation mode of the thermal management system according to the first embodiment; FIG. 5 is an explanatory diagram of a third operation mode of the thermal management system according to the first embodiment; FIG. 5 is an explanatory diagram of a fourth operation mode of the heat management system according to the first embodiment; FIG. 5 is an explanatory diagram of a fifth operation mode of the heat management system according to the first embodiment; FIG. 11 is an explanatory diagram of a sixth operation mode of the thermal management system according to the first embodiment; FIG. 11 is an explanatory diagram of a seventh operation mode of the thermal management system according to the first embodiment; FIG. 11 is an overall configuration diagram of a heat management system according to a second embodiment; FIG. 11 is an explanatory diagram of an eighth operation mode of the heat management system according to the second embodiment; FIG. 11 is an explanatory diagram of a ninth operation mode of the heat management system according to the second embodiment; FIG. 11 is an explanatory diagram of a tenth operation mode of the heat management system according to the second embodiment; FIG. 11 is an explanatory diagram of an eleventh operation mode of the heat management system according to the second embodiment; FIG. 12 is an explanatory diagram of a twelfth operation mode of the heat management system according to the second embodiment; FIG. 11 is an explanatory diagram of a thirteenth operation mode of the heat management system according to the second embodiment; FIG. 11 is an explanatory diagram of a fourteenth operation mode of the heat management system according to the second embodiment; FIG. 15 is an explanatory diagram of a fifteenth operation mode of the heat management system according to the second embodiment; FIG. 20 is an explanatory diagram of a sixteenth operation mode of the heat management system according to the second embodiment; FIG. 14 is an explanatory diagram of a seventeenth operation mode of the heat management system according to the second embodiment; FIG. 20 is an explanatory diagram of a nineteenth operation mode of the heat management system according to the third embodiment; FIG. 11 is an overall configuration diagram of a heat management system according to a fourth embodiment; FIG. 11 is an overall configuration diagram of a heat management system according to a fifth embodiment; FIG. 11 is an overall configuration diagram of a heat management system according to a sixth embodiment; FIG. 11 is an overall configuration diagram of a heat management system according to a seventh embodiment; FIG. 21 is an overall configuration diagram of a heat management system according to an eighth embodiment; FIG. 21 is an overall configuration diagram of a heat management system according to a ninth embodiment; FIG. 21 is an overall configuration diagram of a heat management system according to a tenth embodiment;

A plurality of embodiments for carrying out the present disclosure will be described below with reference to the drawings. In each embodiment, portions corresponding to items described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only part of the configuration is described in each embodiment, the other embodiments previously described can be applied to other portions of the configuration. Not only combinations of parts that are explicitly stated that combinations are possible in each embodiment, but also partial combinations of embodiments even if they are not explicitly stated unless there is a particular problem with the combination. is also possible.

(First embodiment)
First, a schematic configuration of a heat management system 1 according to the first embodiment will be described with reference to the drawings. A thermal management system 1 according to the first embodiment is mounted on an electric vehicle that obtains driving force for running from a motor generator.

In an electric vehicle, the heat management system 1 air-conditions the interior of the vehicle, which is a space to be air-conditioned, and also adjusts the temperature of on-vehicle equipment (for example, the heat-generating equipment 16) to be temperature-controlled. That is, the heat management system 1 according to the first embodiment is used as a vehicle air conditioner with a function of adjusting the temperature of onboard equipment in an electric vehicle.

In the heat management system 1 according to the first embodiment, the heat-generating equipment 16 that generates heat during operation is subject to temperature adjustment. Heat-generating device 16 includes a plurality of components. Specific examples of components of the heat-generating device 16 include a motor generator, a power control unit (so-called PCU), a control device for an advanced driving assistance system (so-called ADAS), and the like.

The motor generator outputs driving force for running when supplied with electric power, and generates regenerative electric power when the vehicle decelerates. A PCU integrates a transformer, a frequency converter, etc. in order to appropriately control the power supplied to each vehicle-mounted device.

In addition, the proper temperature range of each constituent device in the heat generating device 16 is different from each other. For example, the proper temperature range of the motor generator is set to a temperature range that is wider and higher than the proper temperature range of the power control unit. Therefore, in order to properly use the power control unit, more delicate temperature control than the motor generator is required.

The heat management system 1 according to the first embodiment includes a heat medium circuit 5, a refrigeration cycle 40, an indoor air conditioning unit 60, and the like, and performs air conditioning of the vehicle interior, which is a space to be air-conditioned, and is a temperature control object. The temperature of on-vehicle equipment (for example, the heat-generating equipment 16) is adjusted.

The heat medium circuit 5 is a heat medium circulation circuit that circulates cooling water as a heat medium, and has a high temperature side heat medium circuit 10 , a low temperature side heat medium circuit 15 , and a circuit connection portion 25 . In the heat management system 1, the circuit configuration of the heat medium circuit 5 is switched as described later in order to air-condition the vehicle interior and cool the vehicle-mounted equipment.

The refrigerating cycle 40 is a refrigerant circulation circuit that circulates refrigerant. In the heat management system 1, the circuit configuration of the refrigeration cycle 40 is switched according to various air conditioning operation modes, which will be described later.

First, the configuration of the heat medium circuit 5 in the first embodiment will be described with reference to the drawings. As shown in FIG. 1, the heat medium circuit 5 is a heat medium circulation circuit that circulates cooling water as a heat medium, and includes a high temperature side heat medium circuit 10, a low temperature side heat medium circuit 15, a circuit connection portion 25, and the like. have. The heat management system 1 employs an ethylene glycol aqueous solution, which is an incompressible fluid, as the heat medium circulating in the heat medium circuit 5 .

A heater core 11, a heat medium passage 12b of a water-refrigerant heat exchanger 12, a heating device 13, a first water pump 20a, a first heat medium three-way valve 21a, and the like are arranged in the high temperature side heat medium circuit 10. there is

The first water pump 20 a pumps the heat medium toward the heat medium passage 12 b of the water-refrigerant heat exchanger 12 . The first water pump 20a is an electric pump whose number of revolutions (that is, pumping capacity) is controlled by a control voltage output from the control device 70. As shown in FIG.

The water-refrigerant heat exchanger 12 is one of the components of the refrigeration cycle 40 as well as a component of the high temperature side heat medium circuit 10 . The water-refrigerant heat exchanger 12 has a refrigerant passage 12a through which the refrigerant of the refrigerating cycle 40 flows, and a heat medium passage 12b through which the heat medium of the heat medium circuit 5 flows.

The water-refrigerant heat exchanger 12 is made of the same kind of metal (aluminum alloy in the first embodiment) with excellent heat transfer properties, and each constituent member is integrated by brazing. Thereby, the refrigerant flowing through the refrigerant passage 12a and the heat medium flowing through the heat medium passage 12b can exchange heat with each other. Therefore, the water-refrigerant heat exchanger 12 is an example of a heat medium-refrigerant heat exchanger.

In the following description, for clarity of explanation, in the heat medium passage 12b of the water-refrigerant heat exchanger 12, the connection port on the side of the first water pump 20a is called the heat medium inlet, and the connection port on the other side is called the heat medium inlet. It is called heat medium outlet.

A heating device 13 is connected to the heat medium outlet side of the water-refrigerant heat exchanger 12 . The heating device 13 has a heating passage and a heat generating portion, and heats the heat medium flowing into the heater core 11 with electric power supplied from the control device 70, which will be described later. The amount of heat generated by the heating device 13 can be arbitrarily adjusted by controlling the power from the control device 70 .

The heating passage of the heating device 13 is a passage for circulating a heat medium. The heat generating portion heats the heat medium flowing through the heating passage by being supplied with electric power. Specifically, a PTC element or a nichrome wire can be used as the heat generating portion.

The heating medium inlet side of the heater core 11 is connected to the outlet of the heating device 13 . The heater core 11 is a heat exchanger that exchanges heat between a heat medium and air blown from an indoor fan 62, which will be described later. The heater core 11 is a heating unit that heats the blown air using the heat of the heat medium heated by the water-refrigerant heat exchanger 12, the heating device 13, or the like as a heat source. The heater core 11 is arranged inside a casing 61 of an indoor air conditioning unit 60, which will be described later.

The heat medium outlet of the heater core 11 is connected to the inlet side of the first heat medium three-way valve 21a. The first heat medium three-way valve 21a controls the flow rate of the heat medium that flows out of the heat medium that has flowed out from the heater core 11 to the suction port side of the first water pump 20a and the flow rate of the heat medium that flows out to the first connection passage 25a side described later. It is a three-way flow control valve that can continuously adjust the flow rate ratio between The operation of the first heat medium three-way valve 21 a is controlled by a control signal output from the control device 70 .

Furthermore, the first heat medium three-way valve 21a can cause the entire flow rate of the heat medium that has flowed out of the heater core 11 to either the first water pump 20a side or the first connection passage 25a side. Thereby, the first heat medium three-way valve 21 a can switch the circuit configuration of the heat medium circuit 5 . Therefore, the first heat medium three-way valve 21a functions as part of a circuit switching section of the heat medium circuit 5 that switches the circuit configuration of the heat medium circuit 5 .

As shown in FIG. 1 , a bypass passage 18 is connected to the high temperature side heat medium circuit 10 . One end side of the bypass passage 18 is connected to a pipe that connects the heat medium outlet of the heat medium passage 12b in the water-refrigerant heat exchanger 12 and the heat medium inlet of the heating device 13, and constitutes a first connection portion 26a. ing. The other end of the bypass passage 18 is connected to a pipe connecting the outflow port of the first heat medium three-way valve 21a and the suction port of the first water pump 20a, forming a second connection portion 26b. there is

A first heat medium check valve 22 a is arranged in the bypass passage 18 . The first heat medium check valve 22a allows the heat medium to flow from the second connection portion 26b side to the first connection portion 26a side, and prevents the heat medium from flowing from the first connection portion 26a side to the second connection portion 26b side. restrict.

Next, the configuration of the low temperature side heat medium circuit 15 will be described. In the low temperature side heat medium circuit 15, a heat medium passage 16a of the heat generating device 16, a radiator 17, a second water pump 20b, a second heat medium three-way valve 21b, and the like are arranged. The second water pump 20 b pumps the heat medium toward one end of the heat medium passage 16 a in the heat generating device 16 . The basic configuration of the second water pump 20b is similar to that of the first water pump 20a.

A second heat medium check valve 22b is arranged on the outlet side of the second water pump 20b. The second heat medium check valve 22b allows the heat medium to flow from the discharge port side of the second water pump 20b to the heat medium passage 16a side of the heat generating device 16, and allows the heat medium to flow from the heat medium passage 16a side to the second water pump 20b. It is prohibited to flow to the outlet side of

A heat medium passage 16 a of the heat generating device 16 is formed in a housing portion forming an outer shell of the heat generating device 16 or inside a case. The heat medium passage 16a of the heat generating device 16 is a heat medium passage for adjusting the temperature of the heat generating device 16 by circulating the heat medium. In other words, the heat medium passage 16 a of the heat-generating device 16 functions as a temperature adjustment section that adjusts the temperature of the heat-generating device 16 by exchanging heat with the heat medium circulating in the heat medium circuit 5 .

A second heat medium three-way valve 21 b is connected to the other end of the heat medium passage 16 a in the heat generating device 16 . The second heat medium three-way valve 21b controls the flow rate of the heat medium that flows out from the heat medium flowing in from the heat generating device 16 side to the suction port side of the second water pump 20b and the flow rate of the heat medium that flows out to the radiator side passage 19 side. It is a three-way flow control valve that can continuously adjust the flow rate ratio of

The basic configuration of the second heat medium three-way valve 21b is the same as that of the first heat medium three-way valve 21a. Therefore, the first heat medium three-way valve 21 a is a heat medium circuit switching unit that switches the circuit configuration of the heat medium circuit 5 .

The radiator-side passage 19 is a heat medium passage for guiding heat medium to the radiator 17 . One end of the radiator-side passage 19 is connected to one of the heat medium outlets of the second heat medium three-way valve 21b. The other end of the radiator-side passage 19 is connected between the suction port of the second water pump 20b and the other one of the heat medium outlets of the second heat medium three-way valve 21b, and the third connection 26c. Configure.

The radiator 17 is a heat exchanger that exchanges heat between a heat medium flowing inside and outside air. Therefore, the radiator 17 radiates the heat of the heat medium passing through the radiator-side passage 19 to the outside air. The radiator 17 is arranged on the front side in the drive chamber. Therefore, the radiator 17 can be configured integrally with the outdoor heat exchanger 43 .

As shown in FIG. 1 , the heat medium circuit 5 has a circuit connection portion 25 . The circuit connecting portion 25 is a portion that connects the high temperature side heat medium circuit 10 and the low temperature side heat medium circuit 15 so that the heat medium can flow in and out. In the first embodiment, the circuit connection portion 25 is composed of a first connection passage 25a and a second connection passage 25b.

In the high temperature side heat medium circuit 10, the first connection passage 25a is connected to one inlet/outlet of the first heat medium three-way valve 21a. The other end side of the first connection passage 25a is connected to the piping between the other end side of the heat medium passage 16a in the heat generating device 16 and the inlet of the second heat medium three-way valve 21b in the low temperature side heat medium circuit 15. and constitutes the fourth connecting portion 26d.

The second connection passage 25b is connected to the second connection portion 26b in the high temperature side heat medium circuit 10 . The other end side of the second connection passage 25b is connected to the piping between the outflow port of the second heat medium check valve 22b and one end side of the heat medium passage 16a in the heat generating device 16 in the low temperature side heat medium circuit 15. and constitutes the fifth connecting portion 26e.

Therefore, according to the first connection passage 25a and the second heat medium check valve 22b, while allowing the heat medium to flow in and out between the high temperature side heat medium circuit 10 and the low temperature side heat medium circuit 15, the heat medium circuit 5 can allow circulation of the heat transfer medium in the

Next, the configuration of the refrigeration cycle 40 in the heat management system 1 will be described with reference to FIG. 2 . As shown in FIG. 2 , the heat management system 1 employs an HFO-based refrigerant (specifically, R1234yf) as the refrigerant that circulates in the refrigeration cycle 40 .

The refrigerating cycle 40 constitutes a vapor compression subcritical refrigerating cycle in which the refrigerant pressure on the high pressure side does not exceed the critical pressure of the refrigerant. The refrigerant contains refrigerating machine oil for lubricating the compressor 41 arranged in the refrigerating cycle 40 . Part of the refrigeration oil circulates through the refrigeration cycle 40 together with the refrigerant.

As shown in FIG. 2, the refrigeration cycle 40 includes a compressor 41, a four-way valve 42, an outdoor heat exchanger 43, a refrigerant passage 12a of the water-refrigerant heat exchanger 12, an indoor evaporator 44, a first expansion valve 46a, a second 2 expansion valve 46b, evaporation pressure control valve 48 and the like are arranged.

In the refrigeration cycle 40, the compressor 41 sucks, compresses, and discharges the refrigerant. The compressor 41 is arranged in the drive chamber. The driving device room forms a space for housing a motor generator and the like on the front side of the vehicle room. The compressor 41 is an electric compressor that rotationally drives a fixed-displacement compression mechanism with a fixed discharge capacity by an electric motor. The compressor 41 has its rotational speed (that is, refrigerant discharge capacity) controlled by a control signal output from a control device 70, which will be described later.

One refrigerant inflow/outlet of the four-way valve 42 is connected to the discharge port of the compressor 41 via the discharge-side refrigerant passage 57 . The discharge-side refrigerant passage 57 is a refrigerant passage that connects the discharge port of the compressor 41 and one refrigerant inlet/outlet of the four-way valve 42 . The four-way valve 42 is a refrigerant circuit switching unit that switches the circuit configuration of the refrigeration cycle 40 . The operation of the four-way valve 42 is controlled by a control voltage output from the controller 70 .

More specifically, the four-way valve 42 is connected to the discharge port side of the compressor 41, one refrigerant inlet/outlet side of the outdoor heat exchanger 43, the suction port side of the compressor 41, and one refrigerant inlet/outlet of the water-refrigerant heat exchanger 12. side and the refrigerant outlet side of the indoor evaporator 44 can be switched.

As shown in FIG. 2, the four-way valve 42 connects the discharge port side of the compressor 41 and one refrigerant inlet/outlet side of the outdoor heat exchanger 43, and connects the suction port side of the compressor 41 and the water refrigerant heat exchanger. 12 and the refrigerant outlet side of the indoor evaporator 44 are connected.

As shown in FIG. 5, the four-way valve 42 connects the discharge port side of the compressor 41 and one refrigerant inlet/outlet side of the water-refrigerant heat exchanger 12, and connects the suction port side of the compressor 41 and the outdoor heat exchanger. 43 and the refrigerant outlet side of the indoor evaporator 44 are switched to a circuit configuration.

One refrigerant inlet/outlet side of the outdoor heat exchanger 43 is connected to another refrigerant inlet/outlet of the four-way valve 42 . The outdoor heat exchanger 43 is a heat exchanger that exchanges heat between the refrigerant and outside air blown from an outside air blower (not shown). The outdoor heat exchanger 43 is arranged on the front side in the driving device room. Therefore, when the vehicle is running, the outdoor heat exchanger 43 can be exposed to running wind that has flowed into the drive unit room through the outside air intake (a so-called front grill).

Another refrigerant inlet/outlet in the outdoor heat exchanger 43 is connected to one inflow/outlet side of the first three-way joint 45a. In the following description, another refrigerant inlet/outlet connected to the first three-way joint 45a side is referred to as one refrigerant inlet/outlet of the outdoor heat exchanger 43 for clarity of explanation. Also, one refrigerant inlet/outlet connected to the four-way valve 42 side is referred to as the other refrigerant inlet/outlet of the outdoor heat exchanger 43 .

One refrigerant inlet/outlet of the outdoor heat exchanger 43 is connected via a first refrigerant passage 51 to one inlet/outlet side of a first three-way joint 45a having three refrigerant inlet/outlets communicating with each other.

The first three-way joint 45a is a first merging/branching portion that merges or branches the flow of the refrigerant. As the first three-way joint 45a, one formed by joining a plurality of pipes, one formed by providing a plurality of refrigerant passages in a metal block or a resin block, or the like can be adopted.

Two of the three inlets and outlets of the first three-way joint 45a are used as inlets, and the remaining one is used as an outlet. It becomes a confluence part that flows out from When one of the three inflow ports is used as an inflow port and the remaining two are used as outflow ports, the first three-way joint 45a branches the flow of the refrigerant flowing in from one inflow port into two It becomes a branching part that flows out from the outflow port.

Furthermore, the refrigerating cycle 40 of the first embodiment includes a second three-way joint 45b and a third three-way joint 45c. The basic configurations of the second three-way joint 45b and the third three-way joint 45c are similar to that of the first three-way joint 45a. As shown in FIG. 2, the first three-way joint 45a, the second three-way joint 45b, and the third three-way joint 45c are connected to each other at their inlets and outlets.

One refrigerant inlet/outlet side of the water-refrigerant heat exchanger 12 is connected to the remaining inlet/outlet of the second three-way joint 45 b via the second refrigerant passage 52 . Therefore, the second three-way joint 45b is a second confluence branch. The refrigerant inlet side of the indoor evaporator 44 is connected via the third refrigerant passage 53 to the remaining inlet/outlet of the third three-way joint 45c. Therefore, the third three-way joint 45c is a third confluence branch.

The first three-way joint 45a and the second three-way joint 45b are connected via a fourth refrigerant passage 54. As shown in FIG. The first three-way joint 45 a and the third three-way joint 45 c are connected via a fifth refrigerant passage 55 . The second three-way joint 45b and the third three-way joint 45c are connected via a sixth refrigerant passage 56. As shown in FIG.

A first expansion valve 46 a is arranged in the fourth refrigerant passage 54 . The first expansion valve 46a reduces the pressure of the refrigerant flowing into the outdoor heat exchanger 43 via the second three-way joint 45b at least in the heating mode for heating the vehicle interior, and reduces the pressure of the refrigerant flowing into the outdoor heat exchanger 43. Adjust the flow rate (mass flow rate). Further, the first expansion valve 46a reduces the pressure of the refrigerant flowing into the water-refrigerant heat exchanger 12 at least in the cooling mode for cooling the heat medium circulating in the heat medium circuit 5, and causes the refrigerant to flow into the water-refrigerant heat exchanger 12. Adjust the flow rate (mass flow rate) of the refrigerant to be used.

The first expansion valve 46a is an electric variable throttle having a valve body configured to change the opening of the throttle and an electric actuator (specifically, a stepping motor) for changing the opening of the valve body. mechanism. The operation of the first expansion valve 46 a is controlled by a control signal (control pulse) output from the control device 70 .

The first expansion valve 46a has a full-open function that functions as a mere refrigerant passage without exhibiting a refrigerant decompression effect by opening the valve fully, and blocks the refrigerant passage by fully closing the valve opening. It has a fully closed function. The first expansion valve 46a can switch the circuit configuration of the refrigeration cycle 40 by a fully open function and a fully closed function. Therefore, the first expansion valve 46a also functions as a refrigerant circuit switching section.

A second expansion valve 46 b is arranged in the third refrigerant passage 53 . More specifically, the second expansion valve 46b is arranged at the end of the third refrigerant passage 53 on the indoor evaporator 44 side via a dedicated connector.

The second expansion valve 46b reduces the pressure of the refrigerant flowing into the indoor evaporator 44 and adjusts the flow rate (mass flow rate) of the refrigerant flowing into the indoor evaporator 44 at least in the cooling mode for cooling the vehicle interior. The basic configuration of the second expansion valve 46b is similar to that of the first expansion valve 46a. Therefore, the second expansion valve 46b also functions as a refrigerant circuit switching section.

A first refrigerant check valve 47a, which is a refrigerant circuit switching portion, is arranged in the fifth refrigerant passage 55. As shown in FIG. The first refrigerant check valve 47a opens and closes a refrigerant passage that connects the first three-way joint 45a and the third three-way joint 45c. The first refrigerant check valve 47a allows the refrigerant to flow from the first three-way joint 45a side to the third three-way joint 45c side, and prohibits the refrigerant to flow from the third three-way joint 45c side to the first three-way joint 45a side. .

A second refrigerant check valve 47b, which is a refrigerant circuit switching portion, is arranged in the sixth refrigerant passage 56 . The second refrigerant check valve 47b opens and closes the refrigerant passage that connects the second three-way joint 45b and the third three-way joint 45c. The second refrigerant check valve 47b allows the refrigerant to flow from the second three-way joint 45b side to the third three-way joint 45c side, and prohibits the refrigerant to flow from the third three-way joint 45c side to the second three-way joint 45b side. .

As described above, one refrigerant inlet/outlet side of the water-refrigerant heat exchanger 12 is connected to the remaining inlet/outlet of the second three-way joint 45 b via the second refrigerant passage 52 . The water-refrigerant heat exchanger 12 is a heat exchanger that exchanges heat between the refrigerant and the heat medium circulating in the heat medium circuit 5 . The water-refrigerant heat exchanger 12 is arranged in the drive chamber.

In the following description, for clarity of explanation, the refrigerant inlet/outlet connected to the second three-way joint 45b side in the refrigerant passage 12a of the water-refrigerant heat exchanger 12 is one side of the water-refrigerant heat exchanger 12. Described as a refrigerant inlet/outlet. One refrigerant inlet/outlet connected to the four-way valve 42 side is referred to as the other refrigerant inlet/outlet of the water-refrigerant heat exchanger 12 .

As shown in FIG. 2, the indoor evaporator 44 is a heat exchanger that exchanges heat between the refrigerant decompressed by the second expansion valve 46b and the air blown from the indoor blower 62 into the passenger compartment. The indoor evaporator 44 evaporates the refrigerant decompressed by the second expansion valve 46b and causes the refrigerant to exhibit heat absorption, thereby cooling the blown air. The indoor blower 62 and the indoor evaporator 44 are arranged inside a casing 61 of the indoor air conditioning unit 60, which will be described later.

The refrigerant outlet of the indoor evaporator 44 is connected to the inlet side of an evaporation pressure regulating valve 48 . The evaporating pressure regulating valve 48 is a pressure regulating valve that maintains the refrigerant evaporating pressure in the indoor evaporator 44 at a predetermined reference pressure or higher.

The evaporating pressure regulating valve 48 is a mechanical variable throttle mechanism that increases the degree of valve opening as the pressure of the refrigerant on the outlet side of the indoor evaporator 44 rises. As a result, the evaporation pressure regulating valve 48 maintains the refrigerant evaporation temperature in the indoor evaporator 44 at or above a frosting suppression temperature (for example, 1° C.) that can suppress frosting of the indoor evaporator 44 .

The inlet side of the compressor 41 is connected to the outlet of the evaporation pressure regulating valve 48 via a confluence 45d. The basic configuration of the confluence portion 45d is similar to that of the first three-way joint 45a and the like. Another refrigerant inflow/outlet side of the four-way valve 42 is connected to the other inflow port of the confluence portion 45d.

Next, the configuration of the indoor air conditioning unit 60 in the heat management system 1 will be described with reference to FIG. 3 . The indoor air-conditioning unit 60 is a unit that integrates a plurality of components for blowing air adjusted to an appropriate temperature for air-conditioning the vehicle interior to appropriate locations in the vehicle interior. The interior air-conditioning unit 60 is arranged inside the dashboard (instrument panel) at the forefront of the vehicle interior.

As shown in FIG. 3, the indoor air conditioning unit 60 houses an indoor blower 62, an indoor evaporator 44 of the refrigerating cycle 40, a heater core 11 of the heat medium circuit 5, and the like in a casing 61 that forms an air passage for blown air. ing. The casing 61 has a certain degree of elasticity and is molded from a resin (for example, polypropylene) having excellent strength.

An inside/outside air switching device 63 is arranged on the most upstream side of the blown air flow of the casing 61 . The inside/outside air switching device 63 switches and introduces inside air (vehicle interior air) and outside air (vehicle exterior air) into the casing 61 . The operation of the inside/outside air switching device 63 is controlled by a control signal output from the control device 70 .

The indoor air blower 62 is arranged downstream of the inside/outside air switching device 63 in the blown air flow. The indoor air blower 62 blows the air sucked through the inside/outside air switching device 63 into the vehicle interior. The indoor fan 62 has its rotational speed (ie, blowing capacity) controlled by a control voltage output from the control device 70 .

The indoor evaporator 44 and the heater core 11 are arranged in this order with respect to the blown air flow downstream of the indoor blower 62 . In other words, the indoor evaporator 44 is arranged upstream of the heater core 11 in the air flow. In addition, a cold air bypass passage 65 is formed in the casing 61 so that the blown air that has passed through the indoor evaporator 44 bypasses the heater core 11 and flows downstream.

An air mix door 64 is arranged on the downstream side of the indoor evaporator 44 in the blown air flow and upstream of the heater core 11 in the blown air flow. The air mix door 64 is an air volume ratio adjustment unit that adjusts the air volume ratio between the volume of air that passes through the heater core 11 and the volume of air that passes through the cold air bypass passage 65 in the air that has passed through the indoor evaporator 44. The operation of the electric actuator for driving the air mix door is controlled by a control signal output from the control device 70 .

A mixing space 66 is provided downstream of the heater core 11 and the cold air bypass passage 65 in the air flow. The mixing space 66 is a space for mixing the blast air heated by the heater core 11 and the unheated blast air that has passed through the cold-air bypass passage 65 . Furthermore, a plurality of openings are arranged in the downstream portion of the casing 61 in the flow of the blown air for blowing out the blown air that has been mixed in the mixing space 66 and temperature-controlled into the passenger compartment.

Therefore, the temperature of the conditioned air mixed in the mixing space 66 is adjusted by the air mix door 64 adjusting the air volume ratio between the air volume passing through the heater core 11 and the air volume passing through the cold air bypass passage 65. As a result, the temperature of the blown air blown into the vehicle interior from each outlet is adjusted.

Next, a control system of the heat management system 1 according to the first embodiment will be described with reference to FIG. The control device 70 has a well-known microcomputer including CPU, ROM, RAM, etc. and its peripheral circuits. The control device 70 performs various calculations and processes based on control programs stored in the ROM. Then, the control device 70 controls the operation of various controlled devices connected to the output side based on the calculation and processing results. Devices to be controlled in the heat medium circuit 5 include the heating device 13, the first water pump 20a, the second water pump 20b, the first heat medium three-way valve 21a, and the second heat medium three-way valve 21b.

Devices to be controlled in the refrigeration cycle 40 include a compressor 41, a four-way valve 42, a first expansion valve 46a, and a second expansion valve 46b. Further, the equipment to be controlled in the indoor air conditioning unit 60 includes an indoor blower 62 , an inside/outside air switching device 63 and an electric actuator for an air mix door 64 .

As shown in FIG. 4, the input side of the control device 70 is connected with various detection sensors for controlling the operation mode of the heat management system 1 . Accordingly, detection signals from various detection sensors are input to the control device 70 .

Various detection sensors include an inside air temperature sensor 71 , an outside air temperature sensor 72 and a solar radiation sensor 73 . The inside air temperature sensor 71 is an inside air temperature detection unit that detects the vehicle interior temperature (inside air temperature) Tr. The outside air temperature sensor 72 is an outside air temperature detection unit that detects the vehicle outside temperature (outside air temperature) Tam. The solar radiation sensor 73 is a solar radiation amount detection unit that detects the solar radiation amount As irradiated into the vehicle interior.

As shown in FIG. 4, the various detection sensors include an intake refrigerant temperature sensor 74a, a heat exchanger temperature sensor 74b, an evaporator temperature sensor 74f, and an intake refrigerant pressure sensor 75. The intake refrigerant temperature sensor 74 a is an intake refrigerant temperature detection unit that detects the intake refrigerant temperature Ts of the refrigerant sucked into the compressor 41 . The heat exchanger temperature sensor 74b is a heat exchanger temperature detector that detects the temperature of the refrigerant passing through the water-refrigerant heat exchanger 12 (heat exchanger temperature) TC. The heat exchanger temperature sensor 74 b specifically detects the temperature of the outer surface of the water-refrigerant heat exchanger 12 .

The evaporator temperature sensor 74f is an evaporator temperature detection unit that detects the refrigerant evaporation temperature (evaporator temperature) Tefin in the indoor evaporator 44 . The evaporator temperature sensor 74 f specifically detects the temperature of the heat exchange fins of the indoor evaporator 44 . The suction refrigerant pressure sensor 75 is a suction refrigerant pressure detection unit that detects the suction refrigerant pressure Ps of the refrigerant sucked into the compressor 41 .

Further, the various detection sensors include a first heat medium temperature sensor 76a, a second heat medium temperature sensor 76b, a battery temperature sensor 77a, a heat generating device temperature sensor 77b, and an air conditioning air temperature sensor 78.

The first heat medium temperature sensor 76 a is a first heat medium temperature detection unit that detects the temperature TW<b>1 of the heat medium flowing into the heater core 11 . The second heat medium temperature sensor 76b is a second heat medium temperature detection unit that detects the temperature TW2 of the heat medium flowing into the heat medium passage 30a of the battery 30 . The air-conditioning air temperature sensor 78 is an air-conditioning air temperature detector that detects the temperature TAV of the air blown from the mixing space 66 into the vehicle interior.

The battery temperature sensor 77a is a battery temperature detection unit that detects a battery temperature TBA, which is the temperature of the battery 30 mounted on the vehicle. The battery temperature sensor 77 a has a plurality of temperature detection units and detects temperatures at a plurality of locations of the battery 30 . Therefore, the control device 70 can also detect the temperature difference of each part of the battery 30 . Furthermore, as the battery temperature TBA, an average value of detection values of a plurality of temperature sensors is used.

The heat-generating device temperature sensor 77 b is a heat-generating device temperature detection unit that detects a heat-generating device temperature TMG, which is the temperature of the heat-generating device 16 . The heat-generating device temperature sensor 77b detects the temperature of the outer surface of the housing forming the outer shell of the heat-generating device 16 .

As shown in FIG. 4 , an operation panel 80 is connected to the input side of the control device 70 . The operation panel 80 is arranged in the vicinity of the instrument panel in the front part of the passenger compartment, and has various operation switches. Therefore, the control device 70 receives operation signals from various operation switches.

Various operation switches of the operation panel 80 specifically include an auto switch, an air conditioner switch, an air volume setting switch, a temperature setting switch, and the like. The auto switch is operated when setting or canceling the automatic control operation of the heat management system 1 . The air conditioner switch is operated when the indoor evaporator 44 is required to cool the blown air. The air volume setting switch is operated when manually setting the air volume of the indoor fan 62 . The temperature setting switch is operated when setting the target temperature Tset in the passenger compartment.

The control device 70 is integrally configured with a control section for controlling various devices to be controlled connected to its output side. Therefore, the configuration (hardware and software) that controls the operation of each controlled device constitutes a control unit that controls the operation of each controlled device.

For example, in the control device 70, the configuration for controlling the refrigerant discharge capacity of the compressor 41 (specifically, the rotation speed of the compressor 41) constitutes a discharge capacity control section 70a. Further, in the control device 70, the configuration for controlling the operation of the four-way valve 42, which is the refrigerant circuit switching section, constitutes a refrigerant circuit control section 70b.

Then, in the control device 70, the operation of the first water pump 20a, the second water pump 20b, the first heat medium three-way valve 21a, and the second heat medium three-way valve 21b, which are the circuit switching units of the heat medium circuit 5, are controlled. The configuration constitutes a heat medium circuit switching control section 70c. The heat medium circuit switching control section 70 c functions as a circuit switching section in the heat medium circuit 5 .

Next, the operation of the refrigeration cycle 40 in the heat management system 1 configured as described above will be described with reference to FIGS. 2 and 5. FIG. The refrigeration cycle 40 of the heat management system 1 can switch between a plurality of types of operation modes according to the state of air conditioning in the passenger compartment and the operating state of the heat generating device 16 .

Specifically, the refrigerating cycle 40 can be switched between five operating modes: a heating mode, a cooling mode, a dehumidifying heating mode, a cooling mode, and a cooling cooling mode. The cooling mode is an operation mode in which the vehicle interior is cooled by blowing cooled air into the vehicle interior. The heating mode is an operation mode in which the vehicle interior is heated by blowing heated air into the vehicle interior.

The dehumidification/heating mode is an operation mode in which dehumidification/heating of the interior of the vehicle is performed by reheating cooled and dehumidified blast air and blowing the air into the interior of the vehicle. The cooling mode is an operation mode in which the heat medium circulating in the heat medium circuit 5 is cooled. The cooling mode is an operation mode in which the heat medium in the heat medium circuit 5 is cooled while the vehicle interior is cooled.

Switching of each operation mode of the thermal management system 1 is performed by executing a control program. The control program is executed when the auto switch of the operation panel 80 is turned on (ON) and the automatic control operation is set.

In the main routine of the control program, detection signals from the sensor group for air conditioning control and operation signals from various air conditioning operation switches are read. Then, based on the values of the read detection signal and operation signal, a target blowout temperature TAO, which is the target temperature of the blown air blown into the passenger compartment, is calculated based on the following formula F1.

Specifically, the target blowing temperature TAO is calculated by the following formula F1.
TAO=Kset×Tset−Kr×Tr−Kam×Tam−Ks×As+C (F1)
Note that Tset is the target temperature in the vehicle interior set by the temperature setting switch (vehicle set temperature), Tr is the inside temperature detected by the inside temperature sensor 71, Tam is the outside temperature detected by the outside temperature sensor 72, and As is the amount of solar radiation detected by the solar radiation sensor 73 . Kset, Kr, Kam, and Ks are control gains, and C is a correction constant.

In the control program, when the air conditioner switch of the operation panel 80 is turned on and the target air temperature TAO is lower than the predetermined cooling reference temperature α, the operation mode is switched to the cooling mode.

Further, in the control program, when the air conditioner switch on the operation panel 80 is turned on and the target blowout temperature TAO is equal to or higher than the cooling reference temperature α, the operation mode is switched to the dehumidifying heating mode. Furthermore, when the air conditioner switch is not turned on and the target blowout temperature TAO is equal to or higher than the cooling reference temperature α, the operation mode is switched to the heating mode.

Further, in the control program, when the temperature of the heat medium circulating in the heat medium circuit 5 satisfies a predetermined temperature condition, the operation mode is switched to the cooling mode. For example, when the heat-generating device temperature TMG becomes equal to or higher than the reference heat-generating device temperature KTMG, the mode is switched to the cooling mode.

(a) Cooling Mode In the cooling mode, the controller 70 operates the four-way valve 42 so as to connect the discharge port side of the compressor 41 and one refrigerant inlet/outlet side of the outdoor heat exchanger 43 . As the four-way valve 42 operates, the four-way valve 42 connects the suction port side of the compressor 41 with one refrigerant inlet/outlet side of the water-refrigerant heat exchanger 12 and the refrigerant outlet side of the indoor evaporator 44 . Further, the control device 70 brings the first expansion valve 46a into a fully closed state and brings the second expansion valve 46b into a throttled state that exerts a refrigerant pressure reducing action.

Therefore, the refrigerating cycle 40 in the cooling mode constitutes a vapor compression refrigerating cycle in which the refrigerant circulates in the order indicated by the white arrows in FIG. That is, in the refrigeration cycle 40 in the cooling mode, the discharge port of the compressor 41, the four-way valve 42, the outdoor heat exchanger 43, the first refrigerant check valve 47a, the second expansion valve 46b, the indoor evaporator 44, the evaporation pressure adjustment valve 48 , the refrigerant circulates in the order of the suction port of the compressor 41 .

With this circuit configuration, the control device 70 appropriately controls the operations of other controlled devices. For example, for the compressor 41, the rotation speed (that is, refrigerant discharge capacity) is controlled so that the evaporator temperature Tefin detected by the evaporator temperature sensor 74f approaches the target evaporator temperature TEO for the cooling mode.

The target evaporator temperature TEO is determined by referring to a control map stored in advance in the controller 70 based on the target outlet temperature TAO. In this control map, the target evaporator temperature TEO is determined to decrease as the target outlet temperature TAO decreases.

Further, the second expansion valve 46b controls the throttle opening so that the degree of superheat SH of the refrigerant sucked into the compressor 41 approaches a predetermined reference degree of superheat KSH. Degree of superheat SH is calculated based on intake refrigerant temperature Ts detected by intake refrigerant temperature sensor 74 a and intake refrigerant pressure Ps detected by intake refrigerant pressure sensor 75 .

Therefore, in the cooling mode refrigeration cycle 40 , the high-pressure refrigerant discharged from the compressor 41 flows through the four-way valve 42 into the other refrigerant inlet/outlet of the outdoor heat exchanger 43 . The refrigerant that has flowed into the outdoor heat exchanger 43 is condensed by exchanging heat with the outside air blown from the outside air blower. The condensed refrigerant flows out from one refrigerant inlet/outlet of the outdoor heat exchanger 43 .

The refrigerant flowing out from one refrigerant inlet/outlet of the outdoor heat exchanger 43 flows into the second expansion valve 46b through the first three-way joint 45a, the first refrigerant check valve 47a, and the third three-way joint 45c, and is decompressed. be done. At this time, the throttle opening degree of the second expansion valve 46b is adjusted so that the degree of superheat SH of the sucked refrigerant approaches the reference degree of superheat KSH.

The low-pressure refrigerant decompressed by the second expansion valve 46b flows into the indoor evaporator 44, absorbs heat from the air blown from the indoor blower 62, and evaporates. This cools the blown air. The refrigerant that has flowed out of the indoor evaporator 44 is sucked into the compressor 41 via the evaporation pressure regulating valve 48 and the junction 45d and compressed again. As a result, in the refrigeration cycle 40 in the cooling mode, the blown air can be cooled and supplied into the passenger compartment, so that the passenger compartment can be cooled.

(b) Heating Mode In the heating mode, the control device 70 operates the four-way valve 42 so as to connect the discharge port side of the compressor 41 and one refrigerant inlet/outlet side of the water-refrigerant heat exchanger 12 . As the four-way valve 42 operates, the four-way valve 42 connects the suction port side of the compressor 41 with one refrigerant inlet side of the outdoor heat exchanger 43 and the refrigerant outlet side of the indoor evaporator 44 . Further, the control device 70 brings the first expansion valve 46a into the throttled state and brings the second expansion valve 46b into the fully closed state.

Therefore, the refrigerating cycle 40 in the heating mode constitutes a vapor compression refrigerating cycle in which the refrigerant circulates in the order indicated by the black arrows in FIG. That is, in the refrigeration cycle 40 in the heating mode, the discharge port of the compressor 41, the four-way valve 42, the water-refrigerant heat exchanger 12, the first expansion valve 46a, the outdoor heat exchanger 43, the four-way valve 42, the suction port of the compressor 41 The refrigerant circulates in the order of

With this circuit configuration, the control device 70 appropriately controls the operations of other controlled devices. For example, the rotation speed of the compressor 41 is controlled so that the heat exchanger temperature TC detected by the heat exchanger temperature sensor 74b approaches the target heat exchanger temperature TCO1 for the heating mode.

Target heat exchanger temperature TCO1 is determined by referring to a control map stored in advance in controller 70 based on target outlet temperature TAO. In this control map, the target heat exchanger temperature TCO1 is determined to rise as the target blowing temperature TAO rises. Further, for the first expansion valve 46a, the opening degree of the throttle is controlled so that the degree of superheat SH of the refrigerant sucked into the compressor 41 approaches the standard degree of superheat KSH.

Therefore, in the refrigeration cycle 40 in the heating mode, the high-pressure refrigerant discharged from the compressor 41 flows through the four-way valve 42 into the other refrigerant inlet/outlet of the refrigerant passage 12a of the water-refrigerant heat exchanger 12 . The refrigerant that has flowed into the water-refrigerant heat exchanger 12 is condensed by exchanging heat with the heat medium flowing through the heat medium passage 12b when flowing through the refrigerant passage 12a. Thereby, the heat medium flowing through the heat medium passage 12b is heated.

The refrigerant condensed in the refrigerant passage 12a flows out from one refrigerant inlet/outlet of the water-refrigerant heat exchanger 12, flows into the first expansion valve 46a via the second three-way joint 45b, and is decompressed. At this time, the throttle opening degree of the first expansion valve 46a is adjusted so that the degree of superheat SH of the sucked refrigerant approaches the reference degree of superheat KSH.

The low-pressure refrigerant decompressed by the first expansion valve 46a flows into one refrigerant inlet/outlet of the outdoor heat exchanger 43 via the first three-way joint 45a, absorbs heat from the outside air, and evaporates. The refrigerant that has flowed out from the other refrigerant inlet/outlet of the outdoor heat exchanger 43 is sucked into the compressor 41 via the four-way valve 42 and the confluence portion 45d and compressed again.

Thus, in the refrigeration cycle 40 in the heating mode, the blown air can be heated via the heat medium heated by the water-refrigerant heat exchanger 12, so that the vehicle interior can be heated.

(c) Dehumidifying Heating Mode In the dehumidifying heating mode, the controller 70 operates the four-way valve 42 in the same manner as in the heating mode. Further, the control device 70 places the first expansion valve 46a in the throttled state and the second expansion valve 46b in the throttled state.

Therefore, the refrigerating cycle 40 in the dehumidifying and heating mode constitutes a vapor compression refrigerating cycle in which the refrigerant circulates in the order indicated by the hatched arrows in FIG. That is, in the refrigeration cycle 40 in the dehumidifying and heating mode, the discharge port of the compressor 41, the four-way valve 42, the water-refrigerant heat exchanger 12, the second refrigerant check valve 47b, the second expansion valve 46b, the indoor evaporator 44, the evaporation pressure The refrigerant circulates through the adjustment valve 48 and the suction port of the compressor 41 in this order. At the same time, the refrigerant circulates through the discharge port of the compressor 41, the four-way valve 42, the water-refrigerant heat exchanger 12, the first expansion valve 46a, the outdoor heat exchanger 43, the four-way valve 42, and the suction port of the compressor 41 in this order.

That is, in the refrigerating cycle 40 in the dehumidifying and heating mode, a refrigerating cycle in which the outdoor heat exchanger 43 and the indoor evaporator 44 are connected in parallel with respect to the flow of the refrigerant flowing out from the water-refrigerant heat exchanger 12 is configured. .

With this circuit configuration, the control device 70 appropriately controls the operations of other controlled devices. For example, for the compressor 41, as in the heating mode, the rotation speed is controlled so that the heat exchanger temperature TC approaches the target heat exchanger temperature TCO1.

Further, the throttle opening of the first expansion valve 46a is controlled so as to achieve a predetermined throttle opening for the dehumidifying heating mode. As in the heating mode, the second expansion valve 46b is controlled so that the degree of superheat SH of the refrigerant sucked into the compressor 41 approaches the reference degree of superheat KSH.

Therefore, in the refrigerating cycle 40 in the dehumidifying and heating mode, the high-pressure refrigerant discharged from the compressor 41 flows into the refrigerant passage 12a of the water-refrigerant heat exchanger 12 as in the heating mode. The refrigerant that has flowed into the water-refrigerant heat exchanger 12 is condensed by exchanging heat with the heat medium flowing through the heat medium passage 12b when flowing through the refrigerant passage 12a. Thereby, the heat medium flowing through the heat medium passage 12b is heated.

The refrigerant flowing out of the water-refrigerant heat exchanger 12 branches into two flows at the second three-way joint 45b. One of the refrigerants branched at the second three-way joint 45b flows through the second refrigerant check valve 47b and the third three-way joint 45c into the second expansion valve 46b and is decompressed.

The low-pressure refrigerant decompressed by the second expansion valve 46b flows into the indoor evaporator 44 as in the cooling mode. The low-pressure refrigerant that has flowed into the indoor evaporator 44 absorbs heat from the air blown from the indoor fan 62 and evaporates. This cools and dehumidifies the blown air. The refrigerant that has flowed out of the indoor evaporator 44 flows through the evaporation pressure regulating valve 48 into the confluence portion 45d.

Then, the other refrigerant branched at the second three-way joint 45b flows into the first expansion valve 46a and is decompressed in the same manner as in the heating mode. As in the heating mode, the low-pressure refrigerant flowing out of the first expansion valve 46a flows into the outdoor heat exchanger 43, absorbs heat from the outside air, and evaporates.

The refrigerant that has flowed out of the outdoor heat exchanger 43 flows through the four-way valve 42 into the confluence portion 45d. At the confluence portion 45d, the refrigerant flowing out of the evaporating pressure regulating valve 48 and the refrigerant flowing out of the other refrigerant inlet/outlet of the outdoor heat exchanger 43 join. The refrigerant merged at the confluence portion 45d is sucked into the compressor 41 and compressed again.

As a result, in the dehumidifying heating mode, the indoor evaporator 44 can cool and dehumidify the blown air in the same manner as in the cooling mode. Further, as in the heating mode, the water-refrigerant heat exchanger 12 can heat the heat medium, so the heater core 11 can heat the dehumidified blown air. That is, according to the refrigerating cycle 40 in the dehumidifying and heating mode, it is possible to realize dehumidifying and heating in the passenger compartment.

(d) Cooling Mode In the cooling mode, the controller 70 operates the four-way valve 42 as in the cooling mode. Further, the control device 70 brings the first expansion valve 46a into the throttled state and brings the second expansion valve 46b into the fully closed state.

Therefore, the refrigerating cycle 40 in the cooling mode constitutes a vapor compression refrigerating cycle in which the refrigerant circulates in the order indicated by the hatched arrows in FIG. That is, in the refrigeration cycle 40 in the cooling mode, the discharge port of the compressor 41, the four-way valve 42, the outdoor heat exchanger 43, the first expansion valve 46a, the water-refrigerant heat exchanger 12, the four-way valve 42, the suction port of the compressor 41 The refrigerant circulates in the order of

With this circuit configuration, the control device 70 appropriately controls the operations of other controlled devices. For example, the rotation speed of the compressor 41 is controlled so that the heat exchanger temperature TC approaches a predetermined target heat exchanger temperature TCO2 for the cooling mode. Further, for the first expansion valve 46a, the degree of opening of the throttle is controlled so that the degree of superheat SH of the refrigerant sucked into the compressor 41 approaches a predetermined standard degree of superheat KSH.

Therefore, in the refrigerating cycle 40 in the cooling mode, the high-pressure refrigerant discharged from the compressor 41 flows into the other refrigerant inlet/outlet of the outdoor heat exchanger 43 as in the cooling mode. The refrigerant that has flowed into the outdoor heat exchanger 43 exchanges heat with the outside air, condenses, and flows out. The refrigerant that has flowed out of the outdoor heat exchanger 43 flows through the first three-way joint 45a into the first expansion valve 46a and is decompressed. At this time, the degree of opening of the first expansion valve 46a is adjusted so that the degree of superheat SH of the sucked refrigerant approaches the standard degree of superheat KSH.

The low-pressure refrigerant decompressed by the first expansion valve 46a flows into one refrigerant inlet/outlet of the water-refrigerant heat exchanger 12 via the second three-way joint 45b. The low-pressure refrigerant that has flowed into the water-refrigerant heat exchanger 12 evaporates by exchanging heat with the heat medium flowing through the heat medium passage 12b when flowing through the refrigerant passage 12a. Thereby, the heat medium flowing through the heat medium passage 12b is cooled. The refrigerant that has flowed out from the other refrigerant inlet/outlet of the water-refrigerant heat exchanger 12 is sucked into the compressor 41 via the four-way valve 42 and the junction 45d and compressed again.

As a result, according to the refrigeration cycle 40 in the cooling mode, the heat medium circulating in the heat medium circuit 5 can be cooled by the latent heat of vaporization of the refrigerant, and the low-temperature heat medium is used to cool the heat medium circuit 5. You can adjust the temperature of the equipment.

(e) Cooling Mode In the cooling mode, the controller 70 operates the four-way valve 42 as in the cooling mode. Further, the control device 70 causes the first expansion valve 46a and the second expansion valve 46b to be throttled.

Therefore, the refrigerating cycle 40 in the cooling cooling mode constitutes a vapor compression refrigerating cycle in which the refrigerant circulates in the order indicated by both the white arrows and the hatched arrows in FIG. That is, in the refrigeration cycle 40 in the cooling cooling mode, the discharge port of the compressor 41, the four-way valve 42, the outdoor heat exchanger 43, the first refrigerant check valve 47a, the second expansion valve 46b, the indoor evaporator 44, the evaporation pressure adjustment The refrigerant circulates through the valve 48 and the suction port of the compressor 41 in this order. At the same time, the refrigerant circulates through the discharge port of the compressor 41, the four-way valve 42, the outdoor heat exchanger 43, the first expansion valve 46a, the water-refrigerant heat exchanger 12, the four-way valve 42, and the suction port of the compressor 41 in this order.

That is, in the refrigerating cycle 40 in the cooling cooling mode, a refrigerating cycle in which the indoor evaporator 44 and the water-refrigerant heat exchanger 12 are connected in parallel with respect to the flow of refrigerant flowing out from the outdoor heat exchanger 43 is configured. .

With this circuit configuration, the control device 70 appropriately controls the operations of other controlled devices. For example, as in the cooling mode, the compressor 41 is controlled in rotation speed so that the evaporator temperature Tefin approaches the target evaporator temperature TEO.

Further, the throttle opening of the first expansion valve 46a is controlled so as to achieve a predetermined throttle opening for the cooling mode. As in the cooling mode, the second expansion valve 46b is controlled such that the degree of superheat SH of the refrigerant sucked into the compressor 41 approaches the reference degree of superheat KSH.

Therefore, in the refrigerating cycle 40 in the cooling mode, the flow of refrigerant in the refrigerating cycle 40 in the cooling mode and the flow of refrigerant in the refrigerating cycle 40 in the cooling mode occur in parallel. Therefore, in the cooling/cooling mode, the water-refrigerant heat exchanger 12 can cool the heat medium passing through the heat medium passage 12b, and the indoor evaporator 44 can cool the blown air. That is, according to the refrigerating cycle 40 in the cooling cooling mode, it is possible to cool the vehicle interior and at the same time cool the heat generating device 16 via the heat medium.

Next, operation modes of the thermal management system 1 configured as described above will be described with reference to FIGS. 6 to 12. FIG. The heat management system 1 according to the first embodiment can switch between a plurality of types of operation modes according to the state of the vehicle interior air conditioning and the operating state of the heat generating device 16 .

Specifically, when switching the operation mode of the heat management system 1, the operation of the heating device 13, the first water pump 20a, the second water pump 20b, the first heat medium three-way valve 21a, and the second heat medium three-way valve 21b is controlled.

In the following description, as the operation modes of the heat management system 1 according to the first embodiment, the first to seventh operation modes will be described. Since the operation mode of the refrigerating cycle 40 has already been explained with reference to FIGS.

(1) First operation mode The first operation mode is, for example, an operation mode executed by the thermal management system 1 when cooling the heat-generating equipment 16 (eg, PCU) in summer (outside temperature is 25° C. or higher). is. In the first operation mode, the controller 70 stops the first water pump 20a and activates the second water pump 20b. Also, the control device 70 stops the operation of the heating device 13 and the refrigerating cycle 40 (that is, the compressor 41).

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

As a result, in the heat medium circuit 5 in the first operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the first operation mode, the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, the second water pump The heat medium circulates in the order of 20b.

According to the circuit configuration of the heat medium circuit 5 in the first operation mode, the heat medium discharged from the second water pump 20b passes through the heat medium passage 16a of the heat generating device 16 through the second heat medium check valve 22b. flow into When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out.

The heat medium flowing out of the heat generating device 16 flows into the radiator 17 via the second heat medium three-way valve 21b. The heat medium flowing into the radiator 17 exchanges heat with the outside air, and radiates the heat absorbed when passing through the heat medium passage 16a to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pumped.

That is, according to the heat management system 1 in the first operation mode, the heat medium heated by the heat generating device 16 is circulated through the radiator 17, and the heat medium flows into and out of the water-refrigerant heat exchanger 12. Limited. Therefore, in the first operation mode, the heat generated by the heat-generating equipment 16 is radiated to the outside air through the heat medium, and the temperature of the heat-generating equipment 16 is kept within the appropriate temperature range. 16 temperature adjustments can be made.

Moreover, as shown in FIG. 6, in the first operation mode, the heat medium does not circulate via the water-refrigerant heat exchanger 12, and the refrigeration cycle 40 is also stopped. Therefore, according to the heat management system 1 in the first operation mode, it is possible to save energy in adjusting the temperature of the heat-generating equipment 16 .

(2) Second operation mode In the second operation mode, for example, in spring or autumn (outside temperature is 10°C to 25°C), the heat amount of waste heat generated in the heat generating device 16 and the amount of heat released in the water-refrigerant heat exchanger 12 This is executed by the heat management system 1 when the total amount of heat is equal to or less than the required amount of heat for heating determined by user settings.

In the second operation mode, the controller 70 activates the first water pump 20a and deactivates the second water pump 20b. Further, the control device 70 stops the heating device 13 and operates the refrigeration cycle 40 in the dehumidification heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to allow communication between the inflow/outlet on the side of the third connection portion 26c and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the fourth connection portion 26d. Block the exit.

As a result, in the heat medium circuit 5 in the second operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the second operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16, the first The heat medium circulates in order of the water pump 20a.

According to the circuit configuration of the heat medium circuit 5 in the second operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the high-pressure refrigerant that passes through. The heat medium that has flowed out of the water-refrigerant heat exchanger 12 flows into the heater core 11 via the heating device 13 in the stopped state.

In the heater core 11, the heat medium exchanges heat with the air dehumidified by the indoor evaporator 44, thereby heating the air. Thereby, in the second operation mode, dehumidification and heating of the vehicle interior can be performed.

The heat medium flowing out of the heater core 11 flows into the heat medium passage 16a of the heat generating device 16 via the first heat medium three-way valve 21a. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. After flowing out from the heat medium passage 16a of the heat generating device 16, the heat medium is again sucked into the first water pump 20a and pumped.

That is, according to the heat management system 1 in the second operation mode, the heat medium heated by the heat generating device 16 and the water-refrigerant heat exchanger 12 is circulated through the heater core 11 . As a result, in the second operation mode, in addition to the heat of the refrigerant in the refrigeration cycle 40, the heat of the heat-generating device 16 generated by the operation is used via the heat medium, so that the blast air is supplied to the vehicle interior. can be heated. That is, it is possible to effectively utilize the waste heat of the heat-generating equipment 16 and improve the heating efficiency in the heat management system 1 .

In addition, in the heat management system 1 in the second operation mode, the waste heat of the heat-generating equipment 16 is used to heat the blown air without passing through any medium other than the heat medium of the heat medium circuit 5 . Specifically, when the waste heat of the heat-generating device 16 is used to heat the blown air, the refrigerant of the refrigerating cycle 40 does not intervene in addition to the heat medium. Therefore, the waste heat of the heat generating device 16 can be efficiently used as a heating heat source without being affected by the heat exchange efficiency between the heat medium and the refrigerant.

Further, according to the heat management system 1 in the second operation mode, the temperature of the heat medium rises due to the waste heat of the heat-generating equipment 16. Therefore, even if the amount of heat heated by the refrigeration cycle 40 is kept low, the blast air can be kept at a desired temperature. can be heated to

That is, the heat management system 1 in the second operation mode efficiently uses the waste heat of the heat-generating device 16 for heating the blown air, thereby suppressing the amount of operation of the compressor 41 in the refrigeration cycle 40 and saving energy. can be achieved.

(3) Third operation mode In the third operation mode, for example, in spring or autumn (outside temperature is 10° C. to 25° C.), the heat amount of waste heat generated in the heat generating device 16 and the amount of heat released in the water-refrigerant heat exchanger 12 This is executed by the heat management system 1 when the total amount of heat is greater than the amount of heat required for heating determined by user settings.

A state in which the total amount of waste heat generated in the heat-generating equipment 16 and the amount of heat released in the water-refrigerant heat exchanger 12 is greater than the amount of heat required for heating determined by user settings is an example of a high-temperature condition in the present disclosure.

In the third operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b at their respective pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigeration cycle 40 in the dehumidification heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

As a result, in the heat medium circuit 5 in the third operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the third operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16, the first The heat medium circulates in order of the water pump 20a.

At the same time, the second water pump 20b, the second heat medium check valve 22b, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the second heat medium three-way The heat medium circulates through the valve 21b, the radiator 17, and the second water pump 20b in that order.

That is, in the third operation mode, with respect to the flow of the heat medium discharged from the second water pump 20b, the flow of the heat medium passing through the water-refrigerant heat exchanger 12 and the heater core 11, the heat generating device 16 and the radiator 17 are controlled. A circulation path is formed in which the flows of the heat medium passing through are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the third operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the high-pressure refrigerant that passes through. The heat medium that has flowed out of the water-refrigerant heat exchanger 12 flows into the heater core 11 via the heating device 13 in the stopped state.

In the heater core 11, the heat medium exchanges heat with the air dehumidified by the indoor evaporator 44, thereby heating the air. Thereby, in the third operation mode, dehumidification and heating of the vehicle interior can be performed.

The heat medium flowing out from the heater core 11 passes through the first heat medium three-way valve 21a and branches into two flows at the fourth connection portion 26d. One side of the heat medium branched at the fourth connection portion 26d flows into the heat medium passage 16a of the heat generating device 16, absorbs the heat of the heat generating device 16, and flows out. After flowing out from the heat medium passage 16a of the heat generating device 16, the heat medium is again sucked into the first water pump 20a and pumped.

The other part of the heat medium branched at the fourth connection portion 26d flows into the radiator 17 via the second heat medium three-way valve 21b. The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pumped.

As described above, in the third operation mode, the amount of heat added to the heat medium by the water-refrigerant heat exchanger 12 and the heat-generating device 16 is greater than the amount of heat required for heating. be able to.

That is, according to the heat management system 1 according to the third operation mode, in addition to the heat of the refrigerant in the refrigeration cycle 40, the heat of the heat-generating device 16 generated along with the operation is transferred to the heat medium as in the second operation mode. and can improve the heating efficiency in the heat management system 1.

Further, according to the heat management system 1 according to the third operation mode, the heat medium is circulated through the radiator 17 in addition to the heat generating device 16 , the water-refrigerant heat exchanger 12 and the heater core 11 . As a result, excess heat generated by the water-refrigerant heat exchanger 12 and the heat-generating equipment 16 can be radiated to the outside air. Temperature can be adjusted appropriately.

(4) Fourth operating mode In the fourth operating mode, the temperature of the heat medium circulating in the heat medium circuit 5 is predetermined as a first reference, for example, in spring or autumn (outside temperature is 10°C to 25°C). It is executed by the thermal management system 1 when the water temperature (for example, 60° C.) or higher.

In the fourth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b at their respective pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigeration cycle 40 in the dehumidification heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

As a result, in the heat medium circuit 5 in the fourth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the fourth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, and the first water pump 20a The heat medium circulates in order. At the same time, the heat medium circulates through the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b in that order.

That is, in the heat medium circuit 5 in the fourth operation mode, the heat medium circulation path via the water-refrigerant heat exchanger 12 and the heater core 11 and the heat medium circulation path via the heat generating device 16 and the radiator 17 are independent of each other. formed by

According to the circuit configuration of the heat medium circuit 5 in the fourth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the high-pressure refrigerant that passes through. The heat medium that has flowed out of the water-refrigerant heat exchanger 12 flows into the heater core 11 via the heating device 13 in the stopped state.

In the heater core 11, the heat medium exchanges heat with the air dehumidified by the indoor evaporator 44, thereby heating the air. As a result, dehumidification and heating of the passenger compartment can be performed. Then, the heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a via the first heat medium three-way valve 21a and pumped.

On the other hand, the heat medium discharged from the second water pump 20b flows into the heat medium passage 16a of the heat generating device 16 via the second heat medium check valve 22b. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. After flowing out of the heat generating device 16, the heat medium flows into the radiator 17 via the second heat medium three-way valve 21b.

The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium flowing out from the radiator 17 is sucked into the second water pump 20b again and pressure-fed toward the second heat medium check valve 22b.

Thus, according to the heat management system 1 in the fourth operation mode, the heat medium heated by the water-refrigerant heat exchanger 12 is circulated through the heater core 11 . Therefore, according to the fourth operation mode, the vehicle interior can be heated using only the refrigerant of the refrigeration cycle 40 as a heat source.

Here, in the fourth operation mode, the temperature of the heat medium is equal to or higher than the first reference water temperature. It is conceivable that exceeding it may cause malfunction.

In this respect, in the fourth operation mode, the heat medium is circulated via the heat generating device 16 independently of the heat medium circulation path via the heater core 11 . Therefore, in the fourth operation mode, it is possible to suppress the temperature rise of the heat medium passing through the heat-generating device 16 by isolating it from the circulation of the heat medium for heating the vehicle interior.

Further, according to the fourth operation mode, since the radiator 17 is included in the circulation path of the heat medium passing through the heat-generating equipment 16, the heat generated by the heat-generating equipment 16 during operation is transferred through the heat medium. , the heat can be dissipated to the outside air. As a result, in the fourth operation mode, the heat-generating equipment 16 can be cooled by outside air heat dissipation, and malfunction of the heat-generating equipment 16 due to the influence of heat can be prevented.

In the fourth operation mode, as shown in FIG. 9, circulation of the heat medium via the water-refrigerant heat exchanger 12 and the heater core 11 and circulation of the heat medium via the heat generating device 16 and the radiator 17 are independent. , the air conditioning in the passenger compartment and the temperature adjustment of the heat generating device 16 can be controlled independently. Therefore, in the fourth operation mode, regarding the air conditioning in the passenger compartment and the temperature adjustment of the heat generating device 16,
Each can be controlled appropriately.

(5) Fifth Operation Mode The fifth operation mode is executed by the heat management system 1, for example, when heating the interior of the vehicle in winter (outside temperature is 10° C. or lower).

In the fifth operation mode, the control device 70 operates the first water pump 20a with a predetermined pumping capacity and stops the second water pump 20b. Further, the control device 70 operates the heating device 13 so as to generate the set amount of heat generation, and operates the refrigerating cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to allow communication between the inflow/outlet on the side of the third connection portion 26c and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the fourth connection portion 26d. Block the exit.

As a result, in the heat medium circuit 5 in the fifth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the fifth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16, the first The heat medium circulates in order of the water pump 20a.

According to the circuit configuration of the heat medium circuit 5 in the fifth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the high-pressure refrigerant that passes through.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium heated by the water-refrigerant heat exchanger 12 and the heating device 13 flows into the heater core 11 after flowing out of the heating device 13 . In the heater core 11, the heat medium exchanges heat with the air blown by the indoor fan 62, thereby heating the air. Thereby, the vehicle interior can be heated.

Then, the heat medium flowing out of the heater core 11 flows into the heat medium passage 16a of the heat generating device 16 via the first heat medium three-way valve 21a. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. After flowing out of the heat-generating device 16, the heat medium is again sucked into the first water pump 20a and pumped.

That is, according to the heat management system 1 in the fifth operation mode, the heat medium heated by the heat generating device 16 and the water-refrigerant heat exchanger 12 is circulated through the heater core 11 . As a result, in the fifth operation mode, the heat of the refrigerant in the refrigeration cycle 40, the heat of the heat-generating device 16 generated by the operation, and the heat of the operation of the heating device 13 are used for heating the passenger compartment via the heat medium. can do.

Therefore, in the fifth operation mode, by using the heating device 13, it is possible to cope with higher heating capacity than in the second operation mode. Also in the fifth operation mode, since the waste heat of the heat-generating equipment 16 is effectively used, the heating efficiency in the heat management system 1 can be improved as in the second operation mode.

Further, in the heat management system 1 in the fifth operation mode, the waste heat of the heat-generating equipment 16 is used to heat the blown air without passing through any medium other than the heat medium of the heat medium circuit 5 . Therefore, the waste heat of the heat generating device 16 can be efficiently used as a heating heat source without being affected by the heat exchange efficiency between the heat medium and the refrigerant.

According to the heat management system 1 in the fifth operation mode, the temperature of the heat medium rises due to the waste heat of the heat-generating equipment 16. Therefore, even if the amount of heat heated by the refrigeration cycle 40 is kept low, the blast air can be kept at a desired temperature. can be heated to In other words, by efficiently using the waste heat of the heat-generating device 16 for heating the blown air, the operating amount of the refrigerating cycle 40 can be suppressed and energy saving can be achieved.

(6) Sixth operation mode In the sixth operation mode, for example, in winter (outside temperature is 10°C or less), the temperature of the heat medium circulating in the heat medium circuit 5 is a predetermined second reference water temperature (for example, 70 ° C.) is performed in the thermal management system 1 if required. Specifically, the case of defrosting windows in a vehicle is assumed, and the second reference water temperature is set higher than the above-described first reference water temperature.

In the sixth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective pumping capacities. Further, the control device 70 operates the heating device 13 so as to generate the set amount of heat generation, and operates the refrigerating cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

As a result, in the heat medium circuit 5 in the sixth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the sixth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, and the first water pump 20a The heat medium circulates in order. At the same time, the heat medium circulates through the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b in that order.

That is, in the heat medium circuit 5 in the sixth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11, and a heat medium circulation path passing through the heat generating device 16 and the radiator 17 are formed independently.

According to the circuit configuration of the heat medium circuit 5 in the sixth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the passing high-pressure refrigerant.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium heated by the water-refrigerant heat exchanger 12 and the heating device 13 flows into the heater core 11 after flowing out of the heating device 13 .

In the heater core 11, the heat medium exchanges heat with the air blown by the indoor fan 62, thereby heating the air. Thereby, the vehicle interior can be heated. Then, the heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a via the first heat medium three-way valve 21a and pumped.

On the other hand, the heat medium discharged from the second water pump 20b flows into the heat medium passage 16a of the heat generating device 16 via the second heat medium check valve 22b. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. After flowing out of the heat generating device 16, the heat medium flows into the radiator 17 via the second heat medium three-way valve 21b.

The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b.

Thus, according to the heat management system 1 in the sixth operation mode, the heat medium heated by the water-refrigerant heat exchanger 12 and the heating device 13 is circulated through the heater core 11 . Therefore, in the sixth operation mode, in addition to the refrigerant of the refrigerating cycle 40, the heating portion of the heating device 13 can be used as a heat source to heat the vehicle interior. Therefore, according to the sixth operation mode, it is possible to meet the demand for higher heating capacity than in the fourth operation mode, and for example, it is possible to realize a window defroster in the vehicle.

In the sixth operation mode, since the second reference water temperature is required as the temperature of the heat medium, it is conceivable that the temperature of the heat medium will rise in order to cope with the vehicle interior air conditioning. At this time, if the heating device 16 is included in the circulation path of the heat medium passing through the heater core 11, the heating device 13, and the like, the high-temperature heat medium passes through the heat generating device 16. FIG. For this reason, it is conceivable that the proper temperature range of each component of the heat-generating device 16 is exceeded, causing malfunction.

In this respect, in the sixth operation mode, the heat medium is circulated via the heat generating device 16 independently of the heat medium circulation path via the heater core 11 . Therefore, in the sixth operation mode, it is possible to suppress the temperature rise of the heat medium passing through the heat generating device 16 by isolating it from the circulation of the heat medium for heating the vehicle interior.

Furthermore, since the radiator 17 is included in the circulation path passing through the heat-generating device 16, the heat generated by the heat-generating device 16 during operation can be radiated to the outside air via the heat medium. As a result, in the sixth operation mode, it is possible to cool the heat-generating device 16 while responding to the heat medium temperature request for air conditioning in the vehicle interior, and prevent the heat-generating device 16 from malfunctioning due to the influence of heat.

(7) Seventh Operation Mode The seventh operation mode is executed by the heat management system 1 when defrosting the outdoor heat exchanger 43 in the refrigeration cycle 40 .

Here, frost formation on the outdoor heat exchanger 43 will be described. As shown in FIG. 5, when the refrigeration cycle 40 is operated in heating mode or dehumidifying heating mode, the outdoor heat exchanger 43 absorbs heat from the outside air by exchanging heat between the outside air and the low-pressure refrigerant.

At this time, it is assumed that the surface of the outdoor heat exchanger 43 is frosted when the outside air is low temperature and high humidity as in winter. When the outdoor heat exchanger 43 is frosted, the amount of heat absorbed from the outside air in the outdoor heat exchanger 43 is reduced, so the heating performance of the refrigeration cycle 40 is reduced.

The seventh operation mode is performed to defrost the outdoor heat exchanger 43 to ensure a sufficient amount of heat absorbed from the outside air in the outdoor heat exchanger 43 and to maintain the heating performance of the refrigeration cycle 40. be.

In the seventh operation mode, the control device 70 operates the first water pump 20a with a predetermined pumping capacity and stops the second water pump 20b. Further, the control device 70 stops the heating device 13 and operates the refrigerating cycle 40 in the cooling mode described above.

As shown in FIG. 2, in the cooling mode, the water-refrigerant heat exchanger 12 functions as a heat absorber that causes the refrigerant to absorb heat from the heat medium passing through the heat medium passage 16a. In the cooling mode, the high-pressure refrigerant compressed by the compressor 41 is configured to flow into the outdoor heat exchanger 43 via the four-way valve 42 .

At this time, the controller 70 controls the operation of the air mix door 64 so that the cold air bypass passage 65 is fully opened. As a result, heat exchange between the heat medium and the blown air in the heater core 11 is suppressed, and the heater core 11 performs the same function as the heat medium passage.

Then, the control device 70 controls the operation of the first heat medium three-way valve 21a so that the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection portion 26b side are communicated with each other, and the inflow/outlet on the first connection passage 25a side. Block the exit.

As a result, in the heat medium circuit 5 in the seventh operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the seventh operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, and the first water pump 20a The heat medium circulates in order.

According to the circuit configuration of the heat medium circuit 5 in the seventh operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It exchanges heat with the passing low-pressure refrigerant to evaporate the low-pressure refrigerant. That is, in the water-refrigerant heat exchanger 12, the heat medium is cooled by absorbing the latent heat of vaporization of the low-pressure refrigerant.

The heat medium flowing out from the heat medium passage 12 b of the water-refrigerant heat exchanger 12 passes through the heating device 13 and the heater core 11 . As described above, the heating device 13 is in a stopped state, and the heat exchange between the blown air and the heat medium in the heater core 11 is restricted, so the heat medium directly flows into the first heat medium three-way valve 21a. The heat medium flowing out from the first heat medium three-way valve 21 a is sucked into the first water pump 20 a and pumped toward the heat medium passage 12 b of the water-refrigerant heat exchanger 12 .

Thus, according to the seventh operation mode, the heat of the heat medium circulating in the heat medium circuit 5 can be absorbed by the refrigerant of the refrigeration cycle 40 through heat exchange in the water-refrigerant heat exchanger 12 . Since the refrigerating cycle 40 in this case operates in the cooling mode, the heat drawn from the heat medium by the water-refrigerant heat exchanger 12 is supplied to the outdoor heat exchanger 43 .

That is, according to the heat management system 1 in the seventh operation mode, the heat medium is circulated through the water-refrigerant heat exchanger 12 and the heater core 11, and the flow of the heat medium into and out of the heat generating device 16 is restricted. The refrigerating cycle 40 absorbs the heat of the heat medium in the water-refrigerant heat exchanger 12 and supplies the heat to the outdoor heat exchanger 43 .

That is, according to the seventh operation mode, the heat of the heat medium in the heat medium circuit 5 is pumped up by the refrigeration cycle 40 and supplied to the outdoor heat exchanger 43, thereby defrosting the outdoor heat exchanger 43. can.

In the seventh operation mode, when it is determined that the heat of the heat medium in the heat medium circuit 5 is insufficient based on the detection result of the first heat medium temperature sensor 76a, etc., the heating device 13 is operated to The heat used for defrosting the heat exchanger 43 may be supplemented.

As described above, according to the heat management system 1 according to the first embodiment, the water-refrigerant heat exchanger 12 performs air conditioning in the vehicle interior, which is the space to be air-conditioned, as in the fourth and sixth operation modes. A heated heat medium can be circulated through the heater core 11 . Then, as in the second and fifth operation modes, the heat medium heated by the heat-generating device 16 and the water-refrigerant heat exchanger 12 can be circulated through the heater core 11 .

By switching the operation mode in this manner, the heat management system 1 can switch whether or not to use the waste heat of the heat-generating equipment for heating the blown air. Further, according to the heat management system 1, the waste heat of the heat-generating equipment 16 is used for heating the air-conditioned space through the heat medium without the refrigerant of the refrigeration cycle 40, so the heat loss due to the heat exchange efficiency, etc. can be suppressed to improve heating efficiency.

In addition, by circulating the heat medium heated by the heat-generating equipment 16 and the water-refrigerant heat exchanger 12 through the heater core 11 and utilizing the waste heat of the heat-generating equipment 16 for heating, the operation amount of the refrigeration cycle 40 is reduced. (For example, the amount of operation of the compressor 41) can be kept low. As a result, the heat management system 1 can improve the heating efficiency of the air-conditioned space in terms of energy consumption.

In addition, the heat management system 1, as in the fourth and sixth operation modes, independently of the circulation path for circulating the heated heat medium through the heater core 11, heats the heat medium through the heat-generating device 16. can be circulated.

Thus, according to the heat management system 1, it is possible to suppress the temperature rise of the heat medium passing through the heat generating device 16 by keeping it independent from the circulation of the heat medium for heating the vehicle interior. Therefore, the heat management system 1 can heat the vehicle interior, which is the space to be air-conditioned, and adjust the temperature of the heat-generating device 16 in parallel.

Further, in the fourth and sixth operation modes, the radiator 17 is included in the circulation path of the heat medium passing through the heat generating device 16 . Therefore, the heat generated by the heat-generating device 16 during operation can be radiated to the outside air via the heat medium.

As a result, in the fourth and sixth operation modes, it is possible to cool the heat-generating device 16 while responding to the demand for the temperature of the heat medium for air conditioning in the vehicle interior, thereby preventing malfunction of the heat-generating device 16 due to the influence of heat. can be done.

Further, in the heat management system 1, by switching to the seventh operation mode, the heat medium circuit 5 circulates the heat medium through the water-refrigerant heat exchanger 12 and the heater core 11, and supplies the heat medium to the heat-generating equipment 16. restricts the inflow and outflow of Furthermore, the refrigerating cycle 40 is operated in cooling mode.

According to the seventh operation mode, the heat of the heat medium in the heat medium circuit 5 can be pumped up by the refrigeration cycle 40 and supplied to the outdoor heat exchanger 43, and the outdoor heat exchanger 43 can be defrosted. can. Therefore, the heat management system 1 can maintain the heating capacity of the refrigeration cycle 40 in a high state.

Then, as in the first operation mode, the heat management system 1 circulates the heat medium heated by the heat generating device 16 through the radiator 17, and the heat medium flows into and out of the water-refrigerant heat exchanger 12. can be restricted.

By switching to the first operation mode, the heat generated by the heat-generating equipment 16 is radiated to the outside air through the heat medium, and the heat is generated so that the temperature of the heat-generating equipment 16 is within the appropriate temperature range. Temperature regulation of the device 16 can be performed.

Further, when the heat management system 1 satisfies the high temperature condition regarding the temperature of the heat medium and is switched to the third operation mode, in addition to the heat generating device 16, the water-refrigerant heat exchanger 12 and the heater core 11, the radiator 17 The heat medium is circulated so as to pass through.

As a result, the heat management system 1 can use the heat of the heat-generating device 16 generated during operation in addition to the heat of the refrigerant in the refrigeration cycle 40 via the heat medium, thereby improving the heating efficiency of the heat management system 1. can be made In addition, since excess heat generated by the water-refrigerant heat exchanger 12 and the heat-generating equipment 16 can be radiated to the outside air, the temperature of the heat medium circulating in the heat-medium circuit 5 can be reduced from the viewpoint of air conditioning in the passenger compartment and temperature adjustment of the heat-generating equipment 16. can be adjusted appropriately.

Then, the heat management system 1 requires that the temperature of the heat medium is equal to or higher than a predetermined second reference water temperature (for example, 70 ° C.), and when switched to the sixth operation mode, the water refrigerant heat A heat medium is circulated through the exchanger 12 and the heater core 11 . At the same time, in the sixth operation mode, the heat medium is circulated through the heat generating device 16 and the radiator 17 independently of the heat medium circulation path including the water-refrigerant heat exchanger 12 and the heater core 11 .

According to the sixth operation mode, the heating of the passenger compartment and the temperature adjustment of the heat generating device 16 can be performed in parallel. Moreover, since it is independent of the circulation of the heat medium for heating the vehicle interior, the temperature rise of the heat medium passing through the heat generating device 16 can be appropriately suppressed.

Furthermore, since the radiator 17 is included in the circulation path passing through the heat-generating device 16, the heat generated by the heat-generating device 16 during operation can be radiated to the outside air via the heat medium. As a result, in the sixth operation mode, it is possible to cool the heat-generating device 16 while responding to the heat medium temperature request for air conditioning in the vehicle interior, and prevent the heat-generating device 16 from malfunctioning due to the influence of heat.

The heat medium circuit 5 of the heat management system 1 has a heating device 13 that heats the heat medium flowing into the heater core 11 during operation. Since the heating device 13 is configured to be able to arbitrarily adjust the amount of heat for heating the heat medium, the temperature of the heat medium can be adjusted to a desired temperature. As a result, the heat management system 1 can appropriately manage the temperature of the heat medium according to the application such as heating of the passenger compartment by using the heating device 13 .

(Second embodiment)
Next, the heat management system 1 according to the second embodiment will be described with reference to FIGS. 13 to 23. FIG. The heat management system 1 according to the second embodiment is obtained by changing the configuration of the heat medium circuit 5 from the first embodiment described above.

Therefore, in the heat management system 1 according to the second embodiment, the configurations of the refrigerating cycle 40 and the indoor air conditioning unit 60 and the control system of the control device 70 are the same as those of the first embodiment, so detailed description thereof will be omitted. do. In the following description of the second embodiment, differences from the first embodiment will be described.

As shown in FIG. 13 , in the heat management system 1 according to the second embodiment, the heat medium circuit 5 includes a battery 30 as a device whose temperature is to be adjusted, a third heat medium three-way valve 21c that constitutes a circuit switching unit, and a It has a heat medium opening/closing valve 27 and the like.

The heat medium circuit 5 according to the second embodiment further includes a battery side passage 31, a third connection passage 25c, a fourth connection passage 25d, a third heat medium check valve 22c, a fourth heat medium check valve 22d, a 5 A heat medium check valve 22e is added to the heat medium circuit 5 according to the first embodiment.

In the heat medium circuit 5 according to the second embodiment, a third heat medium three-way valve 21c is arranged between the outlet of the heat medium passage 12b of the water-refrigerant heat exchanger 12 and the first connecting portion 26a. The basic configuration of the third heat medium three-way valve 21c is the same as that of the first heat medium three-way valve 21a, and is composed of a three-way flow control valve. The operation of the third heat medium three-way valve 21 c is controlled by a control signal output from the control device 70 .

The outlet side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 is connected to the inlet of the third heat medium three-way valve 21c. One of the outflow ports of the third heat medium three-way valve 21c is connected to a heat medium pipe leading to the first connecting portion 26a. A heat medium passage 30 a of the battery 30 is connected to the other outlet of the third heat medium three-way valve 21 c via a battery side passage 31 .

Therefore, the third heat medium three-way valve 21c allows the heat medium flowing out from the heat medium passage 12b to flow out to the heat medium passage 30a side of the battery 30, It is possible to continuously adjust the flow rate ratio with the flow rate of the outflowing heat medium.

Furthermore, the third heat medium three-way valve 21c can cause the entire flow rate of the heat medium that has flowed out from the heat medium passage 12b to either the heat medium passage 30a side or the first connection portion 26a side of the battery 30. . Thereby, the third heat medium three-way valve 21 c can switch the circuit configuration of the heat medium circuit 5 , and functions as a part of the circuit switching section of the heat medium circuit 5 .

As described above, one end side of the battery-side passage 31 is connected to the other side of the outflow port of the third heat medium three-way valve 21c. The other end of the battery-side passage 31 is connected to the pipe between the suction port of the first water pump 20a and the second connection portion 26b, forming a sixth connection portion 26f.

A heat medium passage 30 a of the battery 30 is arranged in the battery side passage 31 . Battery 30 is a secondary battery (for example, a lithium ion battery) that stores power to be supplied to a motor generator or the like. The battery 30 is an assembled battery formed by connecting a plurality of battery cells in series or in parallel. The battery 30 generates heat during charging and discharging.

A heat medium passage 30a of the battery 30 is a heat medium passage for adjusting the temperature of the battery 30 by circulating a heat medium, and constitutes a device heat exchange section. That is, the heat medium passage 30a of the battery 30 is connected so that the heat medium of the heat medium circuit 5 can flow in and out.

Further, when the heat medium cooled by the water-refrigerant heat exchanger 12 flows, the heat medium passage 30a of the battery 30 functions as a cooling portion that cools the battery 30 using the low-temperature heat medium as a cold heat source. Further, the heat medium passage 30a of the battery 30 functions as a heating portion that heats the battery 30 by using the high temperature heat medium as a heat source when the high temperature heat medium flows.

A heat medium passage 30 a of the battery 30 is formed in a dedicated case of the battery 30 . The passage configuration of the heat medium passage 30a of the battery 30 is a passage configuration in which a plurality of passages are connected in parallel inside the dedicated case.

As a result, the heat medium passage 30 a can evenly exchange heat with the heat medium over the entire area of the battery 30 . For example, the heat medium passage 30a is formed so as to uniformly absorb the heat of all the battery cells and cool all the battery cells equally.

A fourth heat medium check valve 22d is arranged between the outlet of the heat medium passage 30a of the battery 30 and the sixth connection portion 26f. The fourth heat medium check valve 22d allows the heat medium to flow from the outlet side of the heat medium passage 30a of the battery 30 to the sixth connection portion 26f side, and allows the heat medium to flow from the sixth connection portion 26f side to the outlet of the heat medium passage 30a. Do not allow it to flow to the side.

In the heat medium circuit 5 according to the second embodiment, the third heat medium check valve 22c is arranged in the second connection passage 25b. The third heat medium check valve 22c allows the heat medium to flow from the fifth connection portion 26e side to the second connection portion 26b side, and prevents the heat medium from flowing from the second connection portion 26b side to the fifth connection portion 26e side. restrict.

As shown in FIG. 13, one end side of the third connection passage 25c is connected to a pipe between the outlet of the heat medium passage 30a of the battery 30 and the inlet of the fourth heat medium check valve 22d. A connection portion between the outflow port of the heat medium passage 30a of the battery 30 and the third connection passage 25c between the inflow port of the fourth heat medium check valve 22d constitutes a seventh connection portion 26g.

On the other hand, the other end side of the third connection passage 25c is connected between one of the outlets of the second heat medium three-way valve 21b and the heat medium inlet of the radiator 17. As shown in FIG. A connection portion between one of the outflow ports of the second heat medium three-way valve 21b and the heat medium inlet of the radiator 17 and the third connection passage 25c constitutes a ninth connection portion 26i.

A heat medium opening/closing valve 27 is arranged in the third connection passage 25c. The heat medium opening/closing valve 27 switches whether or not the heat medium flows in the third connection passage 25c by opening and closing the heat medium passage in the third connection passage 25c. The heat medium opening/closing valve 27 is an electromagnetic valve whose operation is controlled by a control voltage output from the control device 70 . Therefore, the heat medium opening/closing valve 27 constitutes a part of a circuit switching section that switches the circuit configuration of the heat medium circuit 5 .

As shown in FIG. 13 , one end side of the fourth connection passage 25 d is connected between the other outlet of the third heat medium three-way valve 21 c and the inlet of the heat medium passage 30 a of the battery 30 . A connection portion between the other outflow port of the third heat medium three-way valve 21c and the inflow port of the heat medium passage 30a of the battery 30 and the fourth connection passage 25d constitutes an eighth connection portion 26h.

The other end of the fourth connection passage 25d is connected between the discharge port of the second water pump 20b and the heat medium inlet of the second heat medium check valve 22b. A connection portion between the discharge port of the second water pump 20b and the heat medium inlet of the second heat medium check valve 22b and the fourth connection passage 25d constitutes a tenth connection portion 26j.

A fifth heat medium check valve 22e is arranged in the fourth connection passage 25d. The fifth heat medium check valve 22e allows the heat medium to flow from the tenth connection portion 26j side to the eighth connection portion 26h side, and prevents the heat medium from flowing from the eighth connection portion 26h side to the tenth connection portion 26j side. restrict.

In the heat management system 1 according to the second embodiment configured as described above, the circuit connection portion 25 includes a first connection passage 25a, a second connection passage 25b, a third connection passage 25c, and a fourth connection passage 25d. Consists of

The heat medium circuit switching control unit 70c according to the second embodiment includes the first heat medium three-way valve 21a, the second heat medium three-way valve 21b, the third heat medium three-way valve 21c, which are circuit switching units of the control device 70. It is a configuration for controlling the operation of the heat medium opening/closing valve 27 .

According to the heat management system 1 according to the second embodiment, by switching the circuit configuration of the heat medium circuit 5, it is possible to perform air conditioning in the passenger compartment, temperature adjustment of the heat generating device 16, and temperature adjustment of the battery 30. .

Next, operation of the thermal management system 1 of the second embodiment will be described. Also in the heat management system 1 of the second embodiment, various operation modes are switched in the same manner as in the first embodiment. The operation of the refrigeration cycle 40 in various operation modes is basically the same as in the first embodiment. Therefore, in the following description, the operation of the heat medium circuit 5 will be mainly described.

Moreover, the heat management system 1 according to the second embodiment has various configurations added to the heat medium circuit 5 of the first embodiment described above. Therefore, the heat management system 1 according to the second embodiment can realize the first to seventh operation modes in the first embodiment.

Further, in the heat management system 1 according to the second embodiment, eighth to eighteenth operation modes can be realized. The eighth to eighteenth operation modes will be described below with reference to the drawings.

(8) Eighth operation mode In the eighth operation mode, for example, in summer (when the outside temperature is 25° C. or higher), the vehicle interior is cooled while the battery 30 is cooled and the temperature of the heat-generating device 16 is adjusted. Executed in the thermal management system 1 .

In the eighth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective predetermined pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigerating cycle 40 in the above cooling/cooling mode.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the eighth connecting portion 26h. , closes the inflow/outlet on the side of the first connecting portion 26a. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the eighth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the eighth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the battery 30, the fourth heat medium check valve 22d, the 1 The heat medium circulates in the order of the water pump 20a. At the same time, the heat medium circulates through the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b in that order.

That is, in the heat medium circuit 5 in the eighth operation mode, the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the battery 30 and the heat medium circulation path passing through the heat generating device 16 and the radiator 17 are independent of each other. formed by

According to the circuit configuration of the heat medium circuit 5 in the eighth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is cooled by exchanging heat with the passing low-pressure refrigerant.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows into the heat medium passage 30a of the battery 30 via the third heat medium three-way valve 21c. The cooled heat medium exchanges heat with each battery cell of the battery 30 and absorbs heat from the battery 30 when passing through the heat medium passage 30 a of the battery 30 . Thereby, the battery 30 can be cooled in the eighth operation mode. The heat medium that has flowed out of the battery 30 is again sucked into the first water pump 20a through the fourth heat medium check valve 22d and pumped.

On the other hand, the heat medium discharged from the second water pump 20b flows into the heat medium passage 16a of the heat generating device 16 via the second heat medium check valve 22b. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. After flowing out of the heat generating device 16, the heat medium flows into the radiator 17 via the second heat medium three-way valve 21b.

The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b.

As described above, the refrigeration cycle 40 in the eighth operation mode operates in the cooling/cooling mode. Therefore, the air blown by the indoor blower 62 is operated to pass through the indoor evaporator 44, thereby cooling the vehicle interior. can do.

The heat management system 1 in the eighth operation mode circulates the heat medium so that the heat medium cooled by the water-refrigerant heat exchanger 12 passes through the battery 30 . Therefore, in the eighth operation mode, the battery 30 can be cooled by using the refrigerant of the refrigerating cycle 40 as a cold heat source.

In addition, in the eighth operation mode, the heat medium flows through the heat generating device 16 and the radiator 17 independently of the heat medium circulation path through the water-refrigerant heat exchanger 12 and the heat medium passage 30a of the battery 30. is circulating.

Therefore, according to the eighth operation mode, the cooling of the battery 30 using the refrigerant of the refrigerating cycle 40 and the cooling of the heat-generating device 16 by the outside air radiation in the radiator 17 can be performed independently and in parallel. Thus, according to the eighth operation mode, the temperature ranges of the heat-generating device 16 and the battery 30 can be adjusted to appropriate temperature ranges.

In addition, in the eighth operation mode, the refrigerating cycle 40 is set to the cooling mode, but it is also possible to set it to the cooling mode. The thermal management system 1 in this case does not cool the vehicle interior, and can perform temperature adjustment of the heat-generating device 16 and cooling of the battery 30 in parallel.

(9) Ninth operation mode In the ninth operation mode, the temperature of the heat medium circulating in the heat medium circuit 5 increases when the vehicle interior is slightly heated in rainy weather in summer (outside temperature is 25°C or higher). Executed by the thermal management system 1 when the water temperature is less than the first reference water temperature.

In the ninth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigerating cycle 40 in the cooling mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the eighth connecting portion 26h. , closes the inflow/outlet on the side of the first connecting portion 26a. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the ninth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the ninth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the battery 30, the fourth heat medium check valve 22d, the 1 The heat medium circulates in the order of the water pump 20a.

At the same time, the second water pump 20b, the second heat medium check valve 22b, the third heat medium check valve 22c, the first heat medium check valve 22a, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, The heat medium circulates in the order of the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b.

Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b.

That is, in the heat medium circuit 5 in the ninth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the battery 30, and a heat medium passing through the heater core 11, the heating device 13, the heat generating device 16, and the radiator 17 are formed independently of each other.

In the circulation path of the heat medium passing through the radiator 17 and the like, the flow of the heat medium passing through the heating device 13 and the heater core 11 and the flow of the heat medium passing through the heat generating device 16 are compared with the flow of the heat medium passing through the radiator 17. A circulation path is formed in which the medium flows are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the ninth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is cooled by exchanging heat with the passing low-pressure refrigerant.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows into the heat medium passage 30a of the battery 30 via the third heat medium three-way valve 21c. The cooled heat medium exchanges heat with each battery cell of the battery 30 and absorbs heat from the battery 30 when passing through the heat medium passage 30 a of the battery 30 . Thereby, the battery 30 can be cooled in the ninth operation mode. The heat medium that has flowed out of the battery 30 is again sucked into the first water pump 20a through the fourth heat medium check valve 22d and the first heat medium three-way valve 21a and pumped.

The heat medium discharged from the second water pump 20b passes through the second heat medium check valve 22b and branches into two flows at the fifth connection portion 26e. One side of the heat medium branched at the fifth connection portion 26 e flows into the heat medium passage 16 a of the heat generating device 16 . When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out.

When the heat medium heated by the heat of the heat generating device 16 flows out from the heat medium passage 16a of the heat generating device 16, at the fourth connection portion 26d, it joins the flow of the heat medium on the other side branched at the fifth connection portion 26e. .

On the other hand, the heat medium on the other side branched at the fifth connection portion 26e flows into the heating device 13 via the third heat medium check valve 22c and the first heat medium check valve 22a. In the ninth operation mode, since the heating device 13 is in a stopped state, the heating passage of the heating device 13 functions as a heat medium passage.

The heat medium that has passed through the heating device 13 as it is flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 . Thus, in the ninth operation mode, the heat medium heated by the waste heat of the heat-generating device 16 can warm the blown air, thereby heating the vehicle interior. Then, the heat medium flowing out from the heater core 11 merges with the flow on one side at the fourth connection portion 26d via the first heat medium three-way valve 21a.

The heat medium merged at the fourth connection portion 26d flows into the radiator 17 via the second heat medium three-way valve 21b. The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b. Thereby, according to the ninth operation mode, when passing through the radiator 17, the surplus heat of the heat medium can be radiated to the outside air.

As described above, in the ninth operation mode, the refrigeration cycle 40 operates in the cooling mode, and the heat medium in the heat medium circuit 5 circulates via the battery 30 and the water-refrigerant heat exchanger 12. . Therefore, according to the ninth operation mode, the battery 30 can be cooled by using the refrigerant of the refrigerating cycle 40 as a cold heat source.

In addition, in the ninth operation mode, the heat medium passes through the heater core 11, the heat-generating device 16 and the radiator 17 independently of the heat medium circulation route passing through the water-refrigerant heat exchanger 12 and the heat medium passage 30a of the battery 30. , which circulates the heat medium.

Therefore, according to the ninth operation mode, the heater core 11 can heat the blown air by using the heat medium heated by the waste heat of the heat-generating device 16 as a heat source, and the vehicle interior can be heated. In addition, in the ninth operation mode, part of the heat medium heated by the waste heat of the heat-generating device 16 can pass through the radiator 17, so that surplus heat for heating the vehicle interior can be radiated to the outside air. .

According to the ninth operation mode, the cooling of the heat-generating equipment 16 by the outside air heat dissipation in the radiator 17 and the heating of the passenger compartment using the waste heat of the heat-generating equipment 16 are performed by the battery 30 using the refrigerant of the refrigeration cycle 40. Cooling can be independent and run in parallel. Thus, according to the ninth operation mode, the temperature adjustment of the heat-generating device 16, the heating of the vehicle interior, and the cooling of the battery 30 can be performed appropriately.

(10) Tenth Operation Mode In the tenth operation mode, for example, when it is raining in summer (outside temperature is 25° C. or higher), the temperature of the heat medium circulating in the heat medium circuit 5 is set to the highest when heating the vehicle interior. Executed by the thermal management system 1 if the water temperature is less than 1 reference water temperature. In the tenth operation mode, a higher heating capacity than in the ninth operation mode is required for heating the vehicle interior.

In the tenth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective predetermined pumping capacities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the cooling mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the third connection portion 26c, and the inflow/outlet on the side of the radiator 17. Block the exit.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the eighth connecting portion 26h. , closes the inflow/outlet on the side of the first connecting portion 26a. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the tenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the tenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the battery 30, the fourth heat medium check valve 22d, the 1 The heat medium circulates in the order of the water pump 20a.

At the same time, the second water pump 20b, the second heat medium check valve 22b, the third heat medium check valve 22c, the first heat medium check valve 22a, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, The heat medium circulates in the order of the second heat medium three-way valve 21b and the second water pump 20b. Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, and the second water pump 20b.

That is, in the heat medium circuit 5 in the tenth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the battery 30 and a heat medium circulation path passing through the heater core 11, the heating device 13, and the heat generating device 16 are formed independently.

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the heating device 13 and the heater core 11 and the flow of the heat medium passing through the heating device 16 A circulation path is configured in which the heat medium flows passing through are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the tenth operation mode, the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12 and the heat medium passage 30a of the battery 30. and circulate. Therefore, as in the ninth operation mode, the battery 30 can be cooled by the heat medium cooled by the water-refrigerant heat exchanger 12 .

The heat medium discharged from the second water pump 20b passes through the second heat medium check valve 22b and branches into two flows at the fifth connection portion 26e. One side of the heat medium branched at the fifth connection portion 26 e flows into the heat medium passage 16 a of the heat generating device 16 . When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out.

When the heat medium heated by the heat of the heat generating device 16 flows out from the heat medium passage 16a of the heat generating device 16, at the fourth connection portion 26d, it joins the flow of the heat medium on the other side branched at the fifth connection portion 26e. .

On the other hand, the heat medium on the other side branched at the fifth connection portion 26e flows into the heating device 13 via the third heat medium check valve 22c and the first heat medium check valve 22a. Since the heating device 13 is operating in the tenth operation mode, the heat medium is heated by the heat generating portion when passing through the heating passage of the heating device 13 .

The heat medium heated by the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 . As a result, in the tenth operation mode, the heat medium heated by the waste heat of the heat generating portion of the heating device 13 and the heat generating device 16 can warm the blown air and heat the vehicle interior. Then, the heat medium flowing out from the heater core 11 merges with the flow on one side at the fourth connection portion 26d via the first heat medium three-way valve 21a.

The heat medium joined at the fourth connection portion 26d is again sucked into the second water pump 20b through the second heat medium three-way valve 21b and pumped toward the second heat medium check valve 22b. Thus, according to the tenth operation mode, the waste heat of the heat-generating device 16 can be used to heat the vehicle interior. Further, by heating the heat medium with the heat-generating portion of the heating device 13, it is possible to realize the required heating capacity and improve the comfort of the passenger compartment by heating.

That is, according to the tenth operation mode, the cooling of the battery 30 using the refrigerant of the refrigerating cycle 40 can be independently performed in parallel with the heating of the passenger compartment using the waste heat of the heat generating device 16. can. Thus, according to the tenth operation mode, the temperature adjustment of the heat-generating device 16, the heating of the vehicle interior, and the cooling of the battery 30 can be performed appropriately.

Further, in the tenth operation mode, in addition to the waste heat of the heat generating device 16, the heat generating portion of the heating device 13 is used as the heating heat source for heating the passenger compartment. As a result, in the tenth operation mode, it is possible to cope with a case where a high heating capacity is required for heating the vehicle interior.

(11) Eleventh operation mode The eleventh operation mode is, for example, in spring or autumn (outside temperature is 10° C. to 25° C.), etc., when adjusting the temperature of the battery 30 while heating the vehicle interior. Executed by the management system 1 .

In the eleventh operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective predetermined pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigerating cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b so that the inflow/outlet on the side of the fourth connection portion 26d, the inflow/outlet on the side of the third connection portion 26c, and the inflow/outlet on the side of the radiator 17 are all occlude.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the eleventh operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the eleventh operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16 , the third heat medium check valve 22c, and the first water pump 20a in this order.

At the same time, the heat medium circulates in the order of the second water pump 20b, the fifth heat medium check valve 22e, the battery 30, the heat medium opening/closing valve 27, the radiator 17, and the second water pump 20b. That is, in the heat medium circuit 5 in the eleventh operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12, the heater core 11, and the heat generating device 16, and a heat medium circulation path passing through the battery 30 and the radiator 17. , are formed independently.

According to the circuit configuration of the heat medium circuit 5 in the eleventh operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the passing high-pressure refrigerant.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows into the heating passage of the heating device 13 via the third heat medium three-way valve 21c. In the eleventh operation mode, since the heating device 13 is in a stopped state, the heating passage functions as a heat medium passage.

The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 . As a result, in the eleventh operation mode, the heat of the heat medium can warm the blown air and heat the vehicle interior. Then, the heat medium flowing out of the heater core 11 flows into the heat medium passage 16a of the heat generating device 16 via the first heat medium three-way valve 21a. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out.

When the heat medium heated by the heat of the heat generating device 16 flows out from the heat medium passage 16a of the heat generating device 16, it is again sucked into the first water pump 20a through the third heat medium check valve 22c and pumped. . Thus, in the eleventh operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the waste heat of the heat generating device 16 as heat sources.

The heat medium discharged from the second water pump 20b flows into the heat medium passage 30a of the battery 30 via the fifth heat medium check valve 22e. The heat medium exchanges heat with each battery cell of the battery 30 and absorbs heat from the battery 30 when passing through the heat medium passage 30 a of the battery 30 . Thereby, the battery 30 can be cooled in the eleventh operation mode.

The heat medium flowing out of the heat medium passage 30 a of the battery 30 flows into the radiator 17 via the heat medium opening/closing valve 27 . The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b. Thus, according to the eleventh operation mode, the radiator 17 radiates heat to the outside air, so that the battery 30 can be cooled.

As described above, in the eleventh operation mode, the refrigeration cycle 40 operates in the heating mode, and the heat medium in the heat medium circuit 5 passes through the water-refrigerant heat exchanger 12, the heat-generating device 16, and the heater core 11. circulating. Therefore, according to the eleventh operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the waste heat of the heat-generating device 16 as heating heat sources. At this time, since the waste heat of the heat-generating device 16 is absorbed by the heat medium, the temperature of the heat-generating device 16 can be adjusted.

In addition, in the eleventh operation mode, a heat medium circulation path passing through the battery 30 and the radiator 17 is configured independently of the heat medium circulation path passing through the water-refrigerant heat exchanger 12, the heat generating device 16, and the heater core 11. be. Accordingly, in the eleventh operation mode, the heat absorbed from the battery 30 can be radiated to the outside air by the radiator 17 via the heat medium, so that the temperature of the battery 30 can be adjusted.

According to the eleventh operation mode, the temperature adjustment of the battery 30 by the outside air heat dissipation in the radiator 17 and the heating of the passenger compartment using the refrigerant of the refrigerating cycle 40 and the waste heat of the heat generating device 16 are mutually independent and parallel. can run to Thus, according to the eleventh operation mode, the vehicle interior heating and the temperature adjustment of the battery 30 can be performed appropriately.

(12) Twelfth Operation Mode The twelfth operation mode is, for example, in spring or autumn (outside temperature is 10° C. to 25° C.), etc., when adjusting the temperature of the battery 30 while heating the vehicle interior. This is executed in the heat management system 1 when the temperature of the heat medium in the medium circuit 5 becomes equal to or higher than the above-described first reference water temperature.

In the twelfth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capacities. Further, the control device 70 stops the heating device 13 and operates the refrigerating cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the twelfth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the twelfth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first water The heat medium circulates in order of the pump 20a.

At the same time, the heat medium circulates in the order of the second water pump 20b, the fifth heat medium check valve 22e, the battery 30, the heat medium opening/closing valve 27, the radiator 17, and the second water pump 20b. Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b.

That is, in the heat medium circuit 5 in the twelfth operation mode, a heat medium circulation route passing through the water-refrigerant heat exchanger 12 and the heater core 11 and a heat medium circulation route passing through the battery 30, the heat generating device 16, and the radiator 17. , are formed independently.

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the battery 30 and the heat generating device 16 are separated from the flow of the heat medium passing through the second water pump 20b and the radiator 17. A circulation path is formed in which the flows of the heat medium passing through are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the twelfth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the passing high-pressure refrigerant.

The heat medium flowing out of the water-refrigerant heat exchanger 12 passes through the heating passage of the heating device 13 in the stopped state via the third heat medium three-way valve 21c. The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 .

The heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a through the first heat medium three-way valve 21a and pumped. Thus, in the twelfth operation mode, the vehicle interior can be heated using the refrigerant in the refrigeration cycle 40 as a heat source.

Then, the heat medium discharged from the second water pump 20b branches into two flows at the tenth connection portion 26j. The one-side heat medium branched at the tenth connection portion 26j flows into the heat medium passage 30a of the battery 30 via the fifth heat medium check valve 22e. Thereby, the heat medium exchanges heat with each battery cell of the battery 30 to cool the battery 30 . The heat medium that has flowed out of the battery 30 reaches the ninth connection portion 26i through the heat medium opening/closing valve 27 .

On the other hand, the heat medium on the other side branched at the tenth connection portion 26j flows into the heat medium passage 16a of the heat-generating device 16 via the second heat-medium check valve 22b, and absorbs the heat of the heat-generating device 16. and flow out. After flowing out of the heat generating device 16, the heat medium reaches the ninth connecting portion 26i via the second heat medium three-way valve 21b.

At the ninth connecting portion 26i, the heat medium that has passed through the heat medium on-off valve 27 and the heat medium that has passed through the second heat medium three-way valve 21b join together. The heat medium merged at the ninth connection portion 26i flows into the radiator 17 and exchanges heat with the outside air. As a result, the heat possessed by the heat medium is radiated to the outside air. The heat medium that has flowed out of the radiator 17 is sucked into the second water pump 20b again and pumped toward the tenth connection portion 26j.

In the twelfth operation mode, the refrigeration cycle 40 operates in the heating mode, and the heat medium in the heat medium circuit 5 circulates through the water-refrigerant heat exchanger 12 and heater core 11 . Therefore, according to the twelfth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 as a heating heat source.

In addition, in the twelfth operation mode, a heat medium circulation path passing through the heat-generating device 16, the battery 30, and the radiator 17 is configured independently of the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the heater core 11. be. As a result, in the twelfth operation mode, the heat absorbed from the heat-generating device 16 and the battery 30 can be radiated to the outside air by the radiator 17 via the heat medium, so that the temperatures of the heat-generating device 16 and the battery 30 are adjusted. be able to.

According to the twelfth operation mode, the temperature adjustment of the heat-generating device 16 and the battery 30 by heat radiation from the outside air in the radiator 17 and the heating of the passenger compartment using the refrigerant of the refrigeration cycle 40 are performed independently of each other in parallel. be able to. Thus, according to the twelfth operation mode, it is possible to appropriately perform the heating of the passenger compartment and the temperature adjustment of the heat-generating device 16 and the battery 30 .

(13) Thirteenth Operation Mode The thirteenth operation mode is, for example, in the winter (outside temperature is 10° C. or less), when the temperature of the heat generating device 16 is adjusted while heating the vehicle interior, the heat management system 1 executed.

In the thirteenth operation mode, the control device 70 operates the first water pump 20a with a predetermined pumping capacity and stops the second water pump 20b. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to allow communication between the inflow/outlet on the side of the third connection portion 26c and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the fourth connection portion 26d. Block the exit.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the thirteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the thirteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16 , the third heat medium check valve 22c, and the first water pump 20a in this order. That is, in the heat medium circuit 5 in the thirteenth operation mode, a single heat medium circulation path passing through the heater core 11, the heating device 13, and the heat generating device 16 is formed.

According to the circuit configuration of the heat medium circuit 5 in the thirteenth operation mode, when the heat medium discharged from the first water pump 20a passes through the heat medium passage 12b of the water-refrigerant heat exchanger 12, the heat medium passes through the refrigerant passage 12a. It is heated by exchanging heat with the passing high-pressure refrigerant. The heat medium flowing out of the water-refrigerant heat exchanger 12 flows through the third heat medium three-way valve 21c into the heating passage of the heating device 13 and is heated by the heat generating portion.

The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 . As a result, in the thirteenth operation mode, the heat of the heat medium can warm the blown air, and the vehicle interior can be heated.

Then, the heat medium flowing out of the heater core 11 flows into the heat medium passage 16a of the heat generating device 16 via the first heat medium three-way valve 21a. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out.

The heat medium heated by the heat of the heat generating device 16 is sucked again into the first water pump 20a through the third heat medium check valve 22c and pumped. Thus, in the thirteenth operation mode, the heat source of the heating unit of the heating device 13, the refrigerant of the refrigerating cycle 40, and the waste heat of the heat generating device 16 can be used as heat sources to heat the vehicle interior.

In the thirteenth operation mode, as shown in FIG. 19, circulation of the heat medium via the heat medium passage 30a of the battery 30 is not performed. According to the thirteenth operation mode, the vehicle interior can be heated without actively adjusting the temperature of the battery 30 .

According to the thirteenth operation mode, the refrigerant of the refrigerating cycle 40, the heat generating portion of the heating device 13, and the waste heat of the heat generating device 16 can be used as the heating heat source for heating the vehicle interior. As a result, in the thirteenth operation mode, it is possible to cope with the case where the demand for the heating capacity for heating the vehicle interior is high.

(14) Fourteenth Operation Mode In the fourteenth operation mode, for example, in winter (when the outside temperature is 10° C. or less), it is necessary to cool the battery 30 while heating the vehicle interior while adjusting the temperature of the heat-generating device 16. , is executed in the thermal management system 1 .

In the fourteenth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective predetermined pumping capacities. Then, the control device 70 operates the heating device 13 so as to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b so that the inflow/outlet on the side of the fourth connection portion 26d, the inflow/outlet on the side of the third connection portion 26c, and the inflow/outlet on the side of the radiator 17 are all occlude.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the fourteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the fourteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16 , the third heat medium check valve 22c, and the first water pump 20a in this order.

At the same time, the heat medium circulates in the order of the second water pump 20b, the fifth heat medium check valve 22e, the battery 30, the heat medium opening/closing valve 27, the radiator 17, and the second water pump 20b. That is, in the heat medium circuit 5 in the fourteenth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, and the heat generating device 16, and a heat medium passing through the battery 30 and the radiator 17 are formed independently of each other.

According to the circuit configuration of the heat medium circuit 5 in the fourteenth operation mode, the heat medium discharged from the first water pump 20a exchanges heat with the high-pressure refrigerant passing through the refrigerant passage 12a of the water-refrigerant heat exchanger 12. heated. The heat medium flowing out of the water-refrigerant heat exchanger 12 flows through the third heat medium three-way valve 21c into the heating passage of the heating device 13 and is heated by the heat generating portion.

The heat medium flowing out of the heating device 13 flows into the heater core 11 and heats the air blown by the indoor blower 62 by heat exchange. The heat medium flowing out of the heater core 11 passes through the heat medium passage 16a of the heat generating device 16 via the first heat medium three-way valve 21a.

At this time, the heat medium absorbs the heat of the heat generating device 16 and flows out. The heat medium heated by the heat of the heat generating device 16 is sucked again into the first water pump 20a through the third heat medium check valve 22c and pumped.

Thus, in the 14th operation mode, similarly to the 13th operation mode, the heating unit of the heating device 13, the refrigerant of the refrigerating cycle 40, and the waste heat of the heat-generating device 16 are used as heat sources to heat the passenger compartment. .

The heat medium discharged from the second water pump 20b flows into the heat medium passage 30a of the battery 30 via the fifth heat medium check valve 22e, and absorbs heat from each battery cell of the battery 30. The heat medium flowing out of the heat medium passage 30 a of the battery 30 flows into the radiator 17 via the heat medium opening/closing valve 27 .

The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b. Thus, according to the fourteenth operation mode, the heat of the battery 30 can be radiated to the outside air via the heat medium, so the battery 30 can be cooled.

In the fourteenth operation mode, the refrigeration cycle 40 operates in the heating mode, and the heat medium in the heat medium circuit 5 circulates through the water-refrigerant heat exchanger 12, the heating device 13, the heat generating device 16, and the heater core 11. is doing. Therefore, according to the fourteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40, the heat generating portion of the heating device 13, and the waste heat of the heat generating device 16 as heating heat sources.

In addition, in the fourteenth operation mode, since a heat medium circulation path is formed through the battery 30 and the radiator 17, the battery 30 can be cooled by radiating heat to the outside air through the heat medium.

In the fourteenth operation mode, the circulation of the heat medium via the battery 30 and the radiator 17 is independent of the heat medium circulation path via the water-refrigerant heat exchanger 12, the heating device 13, the heat generating device 16, and the heater core 11. A path is formed.

Therefore, according to the fourteenth operation mode, the temperature of the battery 30 is adjusted by the radiator 17 releasing heat from outside air, and the vehicle interior is heated using the refrigerant of the refrigerating cycle 40, the waste heat of the heat generating device 16, and the heat generating portion of the heating device 13. , can be executed in parallel independently of each other. Thereby, the vehicle interior heating and the temperature adjustment of the battery 30 can be performed appropriately.

(15) Fifteenth operating mode The fifteenth operating mode is, for example, in winter (outside temperature is 10°C or lower), the temperature of the heat medium is the second reference water temperature (for example, 70°C) or higher for vehicle interior air conditioning. One is required and performed in the thermal management system 1 when performing temperature regulation of the heating device 13 . Specifically, the case of defrosting windows in a vehicle is assumed, and the second reference water temperature is set higher than the above-described first reference water temperature.

In the fifteenth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the fifteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the fifteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first water The heat medium circulates in order of the pump 20a.

At the same time, in the heat medium circuit 5, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b. do.

That is, in the heat medium circuit 5 in the fifteenth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11, and a heat medium circulation path passing through the heat generating device 16 and the radiator 17 are formed independently.

According to the circuit configuration of the heat medium circuit 5 in the fifteenth operation mode, the heat medium discharged from the first water pump 20a exchanges heat with the high-pressure refrigerant passing through the refrigerant passage 12a of the water-refrigerant heat exchanger 12. heated.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows through the third heat medium three-way valve 21c into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 to warm the air.

The heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a through the first heat medium three-way valve 21a and pumped. Thus, in the fifteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources.

On the other hand, the heat medium discharged from the second water pump 20b flows into the heat medium passage 16a of the heat generating device 16 via the second heat medium check valve 22b. When passing through the heat medium passage 16a, the heat medium absorbs the heat of the heat generating device 16 and flows out. The heat medium heated by the waste heat of the heat generating device 16 flows into the radiator 17 via the second heat medium three-way valve 21b.

The heat medium that has flowed into the radiator 17 exchanges heat with the outside air, and radiates the heat possessed by the heat medium to the outside air. The heat medium that has flowed out of the radiator 17 is again sucked into the second water pump 20b and pressure-fed toward the second heat medium check valve 22b.

As shown in FIG. 21, in the fifteenth operation mode, circulation of the heat medium through the heat medium passage 30a of the battery 30 is not performed. According to the fifteenth operation mode, the vehicle interior can be heated without actively adjusting the temperature of the battery 30 .

In the fifteenth operation mode, the circulation path of the heat medium passing through the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11 and the circulation path of the heat medium passing through the heat-generating device 16 and the radiator 17 are independent of each other. It is formed.

As a result, in the fifteenth operation mode, the vehicle interior is heated using the refrigerant of the refrigeration cycle 40 and the heat generating portion of the heating device 13 as the heating heat source, and the temperature of the heat generating device 16 is adjusted by heat radiation from the outside air. can be done.

(16) Sixteenth operating mode In the sixteenth operating mode, for example, in winter (outside temperature is 10°C or lower), the temperature of the heat medium is higher than the second reference water temperature (eg, 70°C) for vehicle interior air conditioning. is required and performed by the thermal management system 1 when cooling the heat generating device 16 and the battery 30 .

In the sixteenth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the fourth connection portion 26d and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the third connection portion 26c. Block the exit.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c.

As a result, in the heat medium circuit 5 in the sixteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the sixteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first water The heat medium circulates in order of the pump 20a.

At the same time, the heat medium circulates in the order of the second water pump 20b, the fifth heat medium check valve 22e, the battery 30, the heat medium opening/closing valve 27, the radiator 17, and the second water pump 20b. Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b.

That is, in the heat medium circuit 5 in the sixteenth operation mode, a heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the heater core 11 and a heat medium circulation path passing through the battery 30, the heat generating device 16, and the radiator 17 are divided. , are formed independently.

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the battery 30 and the heat generating device 16 are separated from the flow of the heat medium passing through the second water pump 20b and the radiator 17. A circulation path is formed in which the flows of the heat medium passing through are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the sixteenth operation mode, the heat medium discharged from the first water pump 20a exchanges heat with the high-pressure refrigerant passing through the refrigerant passage 12a of the water-refrigerant heat exchanger 12. heated.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows through the third heat medium three-way valve 21c into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 to warm the air.

The heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a through the first heat medium three-way valve 21a and pumped. Thus, in the sixteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources.

Then, the heat medium discharged from the second water pump 20b branches into two flows at the tenth connection portion 26j. The heat medium on one side branched at the tenth connection portion 26j flows into the heat medium passage 30a of the battery 30 via the fifth heat medium check valve 22e, and absorbs heat from each battery cell of the battery 30. The heat medium that has flowed out of the battery 30 reaches the ninth connection portion 26i through the heat medium opening/closing valve 27 .

On the other hand, the heat medium on the other side branched at the tenth connection portion 26j flows into the heat medium passage 16a of the heat-generating device 16 via the second heat-medium check valve 22b, and absorbs the heat of the heat-generating device 16. and flow out. The heat medium heated by the heat generating device 16 reaches the ninth connecting portion 26i through the second heat medium three-way valve 21b.

At the ninth connecting portion 26i, the heat medium that has passed through the heat medium on-off valve 27 and the heat medium that has passed through the second heat medium three-way valve 21b join together. The heat medium joined at the ninth connection portion 26i flows into the radiator 17 and exchanges heat with the outside air. As a result, the heat possessed by the heat medium is radiated to the outside air. The heat medium that has flowed out of the radiator 17 is sucked into the second water pump 20b again and pumped toward the tenth connection portion 26j.

As shown in FIG. 22, in the sixteenth operation mode, the refrigeration cycle 40 operates in the heating mode, and a heat medium circulation path is formed via the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11. there is Therefore, in the sixteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources.

Further, according to the sixteenth operation mode, the heat medium passing through the heat generating device 16, the battery 30 and the radiator 17 is independent of the circulation path of the heat medium passing through the water-refrigerant heat exchanger 12, the heating device 13 and the heater core 11. is formed.

As a result, in the heat management system 1 in the sixteenth operation mode, the heat-generating device 16 and the battery 30 can be cooled by the outside air heat radiation in the radiator 17 . In addition, since the heat medium circulation path for heating the vehicle interior and the heat medium circulation path for cooling the heat generating device 16 and the battery 30 are independent, the vehicle interior heating and the heat generating device 16 and the battery 30 can be cooled. , respectively can be done appropriately.

(17) Seventeenth Operation Mode Since the internal resistance of the battery 30, which is a secondary battery, increases when the temperature drops, the input/output characteristics deteriorate. Therefore, when using the battery 30 in an environment where the outside temperature is low, it is necessary to warm up the battery 30 in order to raise its temperature. The seventeenth operation mode is executed in the thermal management system 1 when warming up the battery 30 via the heat medium.

In the seventeenth operation mode, the control device 70 operates the first water pump 20a with a predetermined pumping capacity and stops the second water pump 20b. In addition, the control device 70 operates the heating device 13 to generate heat with a predetermined amount of heat. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the third heat medium three-way valve 21c to control the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12, the inflow/outlet on the side of the first connection portion 26a, and the eighth connection. All the inlets and outlets on the part 26h side are made to communicate. Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c.

In addition, in the seventeenth operation mode, control is performed to lower the heat dissipation capacity of the heater core 11 . Specifically, the air mix door 64 in the indoor air conditioning unit 60 is operated so that the cold air bypass passage 65 side is fully opened. As a result, the amount of air passing through the heater core 11 can be minimized, so the amount of heat released in the heater core 11 can be reduced.

Then, in the heat medium circuit 5 in the seventeenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the seventeenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first water The heat medium circulates in order of the pump 20a. At the same time, the heat medium circulates through the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the battery 30, the fourth heat medium check valve 22d, and the first water pump 20a in that order.

That is, in the heat medium circuit 5 in the seventeenth operation mode, the heat medium flow through the heating device 13 and the battery A circulation path is formed in which the heat medium flows passing through 30 are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the seventeenth operation mode, the heat medium discharged from the first water pump 20a exchanges heat with the high-pressure refrigerant passing through the refrigerant passage 12a of the water-refrigerant heat exchanger 12. heated. The heat medium flowing out of the water-refrigerant heat exchanger 12 branches into two flows at the third heat medium three-way valve 21c.

One side of the heat medium branched by the third heat medium three-way valve 21c flows into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium that has flowed out of the heating device 13 passes through the heater core 11 without radiating heat at the heater core 11 . The heat medium flowing out of the heater core 11 reaches the sixth connection portion 26f via the first heat medium three-way valve 21a.

Then, the heat medium on the other side branched by the third heat medium three-way valve 21 c flows into the heat medium passage 30 a of the battery 30 . When flowing into the heat medium passage 30 a of the battery 30 , the heat medium heated by the water-refrigerant heat exchanger 12 or the like radiates heat to each battery cell of the battery 30 . As a result, the battery 30 in the low temperature state is heated by heat exchange with the heat medium. The heat medium flowing out of the battery 30 reaches the sixth connection portion 26f via the fourth heat medium check valve 22d.

At the sixth connection portion 26f, the heat medium flowing out of the first heat medium three-way valve 21a joins the heat medium flowing out of the fourth heat medium check valve 22d. The heat medium joined at the sixth connection portion 26f is again sucked into the first water pump 20a and pumped.

As described above, in the seventeenth operation mode, the temperature of the battery 30 can be raised by using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources, and the warming of the battery 30 can be realized.

(18) Eighteenth Operation Mode The eighteenth operation mode is executed by the heat management system 1 when defrosting the outdoor heat exchanger 43 in the refrigeration cycle 40 while heating the vehicle interior and cooling the battery 30. be.

In the eighteenth operation mode, the control device 70 controls the first water pump 20a, the second water pump 20b, the heating device 13, the first heat medium three-way valve 21a, the second heat medium three-way valve 21b, and the third heat medium three-way valve 21c. , the operation of the heat medium on-off valve 27 is controlled in the same manner as in the tenth operation mode. Also, the control device 70 operates the refrigeration cycle 40 in the cooling mode described above.

As a result, in the heat medium circuit 5 in the eighteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the heat medium circuit 5 in the eighteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the battery 30, the fourth heat medium check valve 22d, the 1 The heat medium circulates in the order of the water pump 20a.

At the same time, the second water pump 20b, the second heat medium check valve 22b, the third heat medium check valve 22c, the first heat medium check valve 22a, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, The heat medium circulates in the order of the second heat medium three-way valve 21b and the second water pump 20b. Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, and the second water pump 20b.

In the circulation path of the heat medium on the side of the second water pump 20b in the eighteenth operation mode, the heat medium is heated by the heat generating portion when passing through the heating passage of the heating device 13 . Furthermore, the heat medium is heated by the waste heat of the heat generating device 16 when passing through the heat medium passage 30a of the heat generating device 16 .

Then, the heat medium heated by the heating device 13 and the heat generating device 16 radiates the heat of the heat medium to the blown air when passing through the heater core 11 . That is, in the 18th operation mode, the vehicle interior can be heated using the waste heat from the heat generating unit of the heating device 13 and the heat generating device 16 as a heat source.

Further, in the heat medium circulation path on the side of the first water pump 20a in the eighteenth operation mode, the heat medium exchanges heat with each battery cell of the battery 30 when passing through the heat medium passage 30a of the battery 30 to warm it. be done. When the heat medium warmed by the battery 30 passes through the heat medium passage 30a of the water-refrigerant heat exchanger 12, it exchanges heat with the low-pressure refrigerant passing through the refrigerant passage 12a. That is, in the eighteenth operation mode, the heat of the battery 30 is absorbed by the low-pressure refrigerant of the refrigeration cycle 40 via the heat medium.

In the eighteenth operation mode, the refrigerating cycle 40 operates in the cooling mode. Therefore, as indicated by the hatched arrows in FIG. is supplied to the outdoor heat exchanger 43 along with the circulation of the Thereby, the frost adhering to the surface of the outdoor heat exchanger 43 is melted by the heat derived from the battery 30 .

That is, according to the heat management system 1 in the eighteenth operation mode, the heat of the battery 30 can be used to defrost the outdoor heat exchanger 43, thereby suppressing a decrease in the heating capacity of the refrigeration cycle 40. be able to.

In addition, in the eighteenth operation mode, a heat medium circulation path passing through the heating device 13, the heat generating device 16, and the heater core 11 is formed independently of the heat medium circulation path for defrosting the outdoor heat exchanger 43. ing. Therefore, according to the eighteenth operation mode, the defrosting of the outdoor heat exchanger 43 and the heating of the passenger compartment using the waste heat of the heat-generating equipment can be performed in parallel.

As described above, according to the thermal management system 1 according to the second embodiment, it is possible to obtain the same effects as those of the first embodiment, which are obtained from the configuration and operation common to those of the first embodiment. can. That is, the heat management system 1 according to the second embodiment can exhibit the effects produced in the first to seventh operation modes described above.

Then, according to the heat management system 1 according to the second embodiment, as in the eighth to tenth operation modes, the flow of the heat medium passes through the water-refrigerant heat exchanger 12 and the heat medium passage 30a of the battery 30. The heater core 11 can be kept independent from the circulation path of the heat medium.

As a result, the heat management system 1 can perform the vehicle interior heating using the heater core 11 independently of the temperature adjustment of the battery 30 using the refrigerating cycle 40 .

Further, according to the heat management system 1 according to the second embodiment, as in the tenth operation mode, the heater core 11 and the heat generation are performed independently of the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the battery 30. A circulation path for the heat medium passing through the device 16 can be formed.

As a result, the thermal management system 1 can perform temperature adjustment of the battery 30 using the refrigerating cycle 40 and heating of the passenger compartment using the waste heat of the heat generating device 16 independently and in parallel.

Then, according to the heat management system 1 according to the second embodiment, as in the ninth operation mode, the heater core 11, heat A circulation path for the heat medium passing through the equipment 16 and the radiator 17 can be formed.

As a result, the heat management system 1 performs the temperature adjustment of the battery 30 using the refrigeration cycle 40 and the heating of the passenger compartment using the waste heat of the heat-generating equipment 16 in parallel. Heat can be radiated to the outside air. Therefore, when the vehicle interior is heated using the waste heat of the heat-generating device 16, both the comfort of the vehicle interior heating and the appropriate temperature adjustment of the heat-generating device 16 can be achieved.

Further, according to the heat management system 1 according to the second embodiment, as in the 11th to 16th operation modes, regarding the flow of the heat medium, the circulation path of the heat medium via the water-refrigerant heat exchanger 12 and the heater core 11 Therefore, the heat medium passage 30a of the battery 30 can be kept independent.

Thereby, the thermal management system 1 can perform the temperature adjustment of the battery 30 independently of the heating of the passenger compartment using the refrigeration cycle 40 .

Then, in the heat management system 1 according to the second embodiment, as in the 11th, 12th, 14th to 16th operation modes, the circulation path of the heat medium passing through the water-refrigerant heat exchanger 12 and the heater core 11 is independent. As a result, a circulation path through the battery 30 and the radiator 17 is formed.

As a result, the heat management system 1 according to the second embodiment can independently and in parallel heat the vehicle interior using the refrigeration cycle 40 and adjust the temperature of the battery 30 by heat radiation from the outside air. .

Further, according to the heat management system 1, as in the 12th and 16th operation modes, the battery 30, the radiator 17 and the heat generation are controlled independently of the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the heater core 11. A circulation path for the heat medium passing through the device 16 can be formed.

As a result, the thermal management system 1 according to the second embodiment performs the heating of the vehicle interior using the refrigeration cycle 40 and the temperature adjustment of the heat-generating device 16 and the battery 30 by heat radiation from outside air independently and in parallel. can do.

According to the heat management system 1, as in the thirteenth operation mode, the heat medium for the heat medium passage 30a of the battery 30 is independent of the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the heater core 11. can limit the inflow and outflow of

As a result, the thermal management system 1 according to the second embodiment suppresses the influence of the temperature change of the heat medium due to the heating of the vehicle interior on the battery 30 when the vehicle interior is heated by the refrigeration cycle 40. be able to.

(Third embodiment)
Next, the heat management system 1 according to the third embodiment will be described with reference to FIG. 24. FIG. The heat management system 1 according to the third embodiment has the same basic configuration as that of the heat management system 1 according to the second embodiment, and further includes a radiator on-off valve 28 .

As shown in FIG. 24 , the radiator on-off valve 28 is arranged in the heat medium pipe between the ninth connecting portion 26 i and the heat medium inlet of the radiator 17 . The radiator opening/closing valve 28 switches the presence or absence of the heat medium flowing into and out of the radiator 17 by opening and closing the heat medium passage between the ninth connection portion 26i and the heat medium inlet of the radiator 17 .

The radiator on-off valve 28 is an electromagnetic valve whose operation is controlled by a control voltage output from the control device 70 . Therefore, in the third embodiment, the radiator on-off valve 28 constitutes a part of a circuit switching unit that switches the circuit configuration of the heat medium circuit 5 .

Note that the heat medium circuit switching control unit 70c according to the third embodiment is the first heat medium three-way valve 21a, the second heat medium three-way valve 21b, and the third heat medium three-way valve, which are the circuit switching units of the control device 70. 21c, the heat medium opening/closing valve 27, and the radiator opening/closing valve 28. FIG.

As described above, the heat management system 1 according to the third embodiment has the radiator on-off valve 28 added to the heat medium circuit 5 according to the second embodiment. Therefore, the heat management system 1 according to the third embodiment can realize the above-described first to eighteenth operation modes. Further, in the heat management system 1 according to the third embodiment, by controlling the operation of the radiator on-off valve 28, the 19th operation mode can be realized.

(19) Nineteenth operation mode The nineteenth operation mode is, for example, in winter (when the outside temperature is 10° C. or less), when heating the vehicle interior and suppressing the temperature drop of the heat generating device 16 and the battery 30, the heat Executed by the management system 1 .

In the nineteenth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in the heating mode described above.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to open all of the inflow/outlet on the side of the third connection portion 26c, the inflow/outlet on the side of the fourth connection portion 26d, and the inflow/outlet on the side of the radiator 17. communicate.

In addition, the control device 70 controls the operation of the third heat medium three-way valve 21c to communicate the inflow/outlet on the side of the heat medium passage 12b of the water-refrigerant heat exchanger 12 with the inflow/outlet on the side of the first connecting portion 26a. , block the inflow/outlet on the side of the eighth connecting portion 26h.

Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c. Then, the control device 70 controls the operation of the radiator on-off valve 28 to block the heat medium passage between the ninth connecting portion 26 i and the inlet of the radiator 17 .

As a result, in the heat medium circuit 5 in the nineteenth operation mode, the heat medium circulates as indicated by the thick line arrows in FIG. Specifically, in the nineteenth operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the third heat medium three-way valve 21c, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first water The heat medium circulates in order of the pump 20a.

At the same time, the heat medium circulates through the second water pump 20b, the fifth heat medium check valve 22e, the battery 30, the heat medium opening/closing valve 27, the second heat medium three-way valve 21b, and the second water pump 20b in that order. Furthermore, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the second heat medium three-way valve 21b, and the second water pump 20b.

That is, in the heat medium circuit 5 in the nineteenth operation mode, the heat medium circulation path passing through the water-refrigerant heat exchanger 12 and the heater core 11 and the heat medium circulation path passing through the battery 30 and the heat generating device 16 are independent of each other. formed by

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the battery 30 and the heat passing through the heat generating device 16 are compared with the flow of the heat medium passing through the second water pump 20b. A circulation path is formed in which the medium flows are connected in parallel.

According to the circuit configuration of the heat medium circuit 5 in the nineteenth operation mode, the heat medium discharged from the first water pump 20a exchanges heat with the high-pressure refrigerant passing through the refrigerant passage 12a of the water-refrigerant heat exchanger 12. heated.

The heat medium flowing out of the water-refrigerant heat exchanger 12 flows through the third heat medium three-way valve 21c into the heating passage of the heating device 13 and is heated by the heat generating portion. The heat medium flowing out of the heating device 13 flows into the heater core 11 and exchanges heat with the air blown by the indoor blower 62 to warm the air.

The heat medium that has flowed out of the heater core 11 is again sucked into the first water pump 20a through the first heat medium three-way valve 21a and pumped. Thus, in the nineteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources.

Then, the heat medium discharged from the second water pump 20b branches into two flows at the tenth connection portion 26j. The heat medium on one side branched at the tenth connection portion 26j flows into the heat medium passage 30a of the battery 30 via the fifth heat medium check valve 22e, and absorbs heat from each battery cell of the battery 30. The heat medium flowing out of the battery 30 flows through the heat medium on-off valve 27 into the second heat medium three-way valve 21b.

On the other hand, the heat medium on the other side branched at the tenth connection portion 26j flows into the heat medium passage 16a of the heat-generating device 16 via the second heat-medium check valve 22b, and absorbs the heat of the heat-generating device 16. and flow out. The heat medium heated by the heat generating device 16 flows into the second heat medium three-way valve 21b. That is, the two heat medium flows branched at the tenth connection portion 26j join at the second heat medium three-way valve 21b and are sucked into the second water pump 20b again.

As shown in FIG. 24, in the nineteenth operation mode, the refrigeration cycle 40 operates in the heating mode, and a heat medium circulation path is formed via the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11. there is Therefore, in the nineteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources.

Further, according to the nineteenth operation mode, the circulation path of the heat medium via the heat-generating device 16 and the battery 30 is independent of the heat medium circulation path via the water-refrigerant heat exchanger 12, the heating device 13, and the heater core 11. is formed.

As a result, in the heat management system 1 in the nineteenth operation mode, the heat medium circulated by the second water pump 20b continuously circulates while absorbing heat from the heat-generating device 16 and the battery 30 . Therefore, in a low-temperature environment such as winter (outside temperature is 10° C. or less), waste heat from the heat-generating device 16 and the battery 30 can be stored in the circulating heat medium.

Therefore, according to the thermal management system 1 in the nineteenth operation mode, it is possible to suppress the temperature drop of the heat-generating device 16 and the battery 30 and maintain the heat-generating device 16 and the battery 30 within an appropriate temperature range.

In addition, since the heat medium circulation path for heating the vehicle interior and the heat medium circulation path for cooling the heat generating device 16 and the battery 30 are independent, the temperature of the vehicle interior heating, the heat generating device 16 and the battery 30 can be maintained. can be done appropriately.

As described above, according to the heat management system 1 according to the third embodiment, even when the radiator opening/closing valve 28 is arranged between the radiator 17 and the ninth connecting portion 26i, Advantages from the configuration and operation of can be similarly obtained.

Moreover, according to the heat management system 1 according to the third embodiment, as shown in FIG. As a result, a circulation path passing through the battery 30 and the heat-generating device 16 is formed.

As a result, the heat management system 1 according to the third embodiment heats the vehicle interior using the refrigeration cycle 40 and suppresses the temperature drop of the radiator 17 and the battery 30 using the heat stored in the heat medium. Can run independently and in parallel.

(Fourth embodiment)
Next, the heat management system 1 according to the fourth embodiment will be explained with reference to FIG. 25 . The heat management system 1 according to the fourth embodiment has the same basic configuration as the heat management system 1 according to the first embodiment, and instead of the water-refrigerant heat exchanger 12 according to the first embodiment, a water cooling condenser 91 and chiller 92 are adopted.

In the refrigerating cycle 40 according to the first embodiment, as shown in FIGS. 2 and 5, one water-refrigerant heat exchanger 12 functions as a radiator or a heat absorber by switching the circuit configuration of the refrigerating cycle 40. ing.

In this regard, in the refrigerating cycle 40 according to the fourth embodiment, although not shown, a water-cooled condenser 91 functioning as a radiator and a chiller 92 functioning as a heat absorber are separately arranged. The refrigeration cycle 40 according to the fourth embodiment can selectively cause the water-cooled condenser 91 and the chiller 92 to function by switching the circuit configuration.

The water-cooled condenser 91 is composed of a water-refrigerant heat exchanger, and has a refrigerant passage 91a through which the high-pressure refrigerant of the refrigeration cycle 40 passes, and a heat medium passage 91b through which the heat medium circulating in the heat medium circuit 5 passes. ing. Therefore, the water-cooled condenser 91 radiates the heat of the high-pressure refrigerant passing through the refrigerant passage 91a to the heat medium passing through the heat medium passage 91b, thereby heating the heat medium.

The chiller 92 is composed of a water-refrigerant heat exchanger, and has a refrigerant passage 92a through which the low-pressure refrigerant of the refrigerating cycle 40 passes, and a heat medium passage 92b through which the heat medium circulating in the heat medium circuit 5 passes. is doing. The chiller 92 cools the heat medium by allowing the low-pressure refrigerant passing through the refrigerant passage 92a to absorb heat from the heat medium passing through the heat medium passage 92b.

As shown in FIG. 25, the heat medium circuit 5 according to the fourth embodiment is configured by arranging a water-cooled condenser 91 and a chiller 92 instead of the water-refrigerant heat exchanger 12 of the heat medium circuit 5 in the first embodiment. It is

Specifically, the heat medium inlet side of the heat medium passage 91b of the water-cooled condenser 91 is connected to the discharge port of the first water pump 20a. Further, the heat medium inlet side of the heat medium passage 92b of the chiller 92 is connected to the heat medium outlet side of the heat medium passage 91b of the water-cooled condenser 91 . The heat medium outlet side of the heat medium passage 92b in the chiller 92 is connected to the heat medium pipe on the first connection portion 26a side.

As shown in FIG. 25, the thermal management system 1 according to the fourth embodiment switches the circuit configurations of the heat medium circuit 5 and the refrigerating cycle 40, respectively, in the same manner as in the first embodiment. ~ 7th operation mode can be realized.

As described above, according to the heat management system 1 according to the fourth embodiment, even when the water-cooled condenser 91 and the chiller 92 are employed, the same configuration and operation as those of the first embodiment are achieved. , can be obtained in the same manner as in the first embodiment.

(Fifth embodiment)
Next, the heat management system 1 according to the fifth embodiment will be described with reference to FIG. 26. FIG. The heat management system 1 according to the fifth embodiment has the same basic configuration as the heat management system 1 according to the second embodiment, and instead of the water-refrigerant heat exchanger 12 according to the second embodiment, a water cooling condenser 91 and chiller 92 are adopted.

A water-cooled condenser 91 and a chiller 92 according to the fifth embodiment are configured in the same manner as in the fourth embodiment. Further, the refrigeration cycle 40 according to the fifth embodiment can selectively cause the water-cooled condenser 91 and the chiller 92 to function by switching the circuit configuration.

As shown in FIG. 26, in the heat medium circuit 5 according to the fifth embodiment, the heat medium inlet side of the heat medium passage 91b in the water-cooled condenser 91 is connected to one side of the outlet of the third heat medium three-way valve 21c. ing. The heat medium outlet side of the heat medium passage 91b in the water-cooled condenser 91 is connected to the heat medium pipe on the side of the first connecting portion 26a.

The heat medium inlet side of the heat medium passage 92b in the chiller 92 is connected to the other side of the outflow port of the third heat medium three-way valve 21c. The heat medium outlet side of the heat medium passage 92b in the chiller 92 is connected to the heat medium pipe on the side of the eighth connecting portion 26h.

As shown in FIG. 26, the heat management system 1 according to the fifth embodiment switches the circuit configurations of the heat medium circuit 5 and the refrigerating cycle 40, respectively, in the same manner as in the second embodiment. ~ 18th operation mode can be realized.

As described above, according to the heat management system 1 according to the fifth embodiment, even when the water-cooled condenser 91 and the chiller 92 are employed, the configuration and operation common to those of the above-described second and third embodiments , can be obtained in the same manner as in the second and third embodiments.

(Sixth embodiment)
Next, the heat management system 1 according to the sixth embodiment will be described with reference to FIG. 27. FIG. A heat management system 1 according to the sixth embodiment is configured in the same manner as in the fifth embodiment, except for the arrangement of the water-cooled condenser 91 and chiller 92 in the heat medium circuit 5 . Therefore, description of other configurations will be omitted, and differences from the fifth embodiment will be described.

In the heat medium circuit 5 according to the sixth embodiment, the heat medium inlet side of the heat medium passage 91b in the water-cooled condenser 91 is connected to the heat medium pipe on the first connection portion 26a side. The heat medium outlet side of the heat medium passage 91 b in the water-cooled condenser 91 is connected to the inlet side of the heating passage in the heating device 13 .

The chiller 92 in the heat medium circuit 5 according to the sixth embodiment is arranged between the third heat medium three-way valve 21c and the eighth connecting portion 26h, as in the fifth embodiment.

As shown in FIG. 27, the heat management system 1 according to the sixth embodiment switches the circuit configurations of the heat medium circuit 5 and the refrigeration cycle 40, respectively, in the same manner as in the second, third, and fifth embodiments. The above-described first to eighteenth operating modes can be realized.

As described above, according to the heat management system 1 according to the sixth embodiment, even when the arrangement of the water-cooled condenser 91 and the chiller 92 is changed, the same Advantages from the configuration and operation can be obtained in the same manner as in the above-described embodiments.

(Seventh embodiment)
Next, the heat management system 1 according to the seventh embodiment will be described with reference to FIG. 28. FIG. The thermal management system 1 according to the seventh embodiment has the same basic configuration as the thermal management system 1 according to the first embodiment, and the connection manner of the first connection passage 25a and the second connection passage 25b is different. ing. Differences from the first embodiment will be specifically described below.

As shown in FIG. 28, in the high temperature side heat medium circuit 10 according to the seventh embodiment, the bypass passage 18 connecting the first connection portion 26a and the second connection portion 26b is removed. Along with the bypass passage 18, the first heat medium check valve 22a is also removed. The high temperature side heat medium circuit 10 of the seventh embodiment has the same configuration as that of the first embodiment except that the bypass passage 18 and the first heat medium check valve 22a are not present.

In the low temperature side heat medium circuit 15 according to the seventh embodiment, a low temperature side opening/closing valve 28a is arranged between the fourth connection portion 26d and one inlet/outlet of the second heat medium three-way valve 21b. The low-temperature side on-off valve 28a is configured in the same manner as the heat medium on-off valve 27, and switches whether or not the heat medium flows between the fourth connection portion 26d and the second heat medium three-way valve 21b. Therefore, the low temperature side on-off valve 28a constitutes a part of the circuit switching section.

One inlet/outlet of the second heat medium three-way valve 21b is connected to the other side of the low temperature side on-off valve 28a. The heat medium inlet side of the radiator 17 is connected to the other inlet/outlet of the second heat medium three-way valve 21b. A detour passage 19a is connected to another inlet/outlet of the second heat medium three-way valve 21b. The bypass passage 19a is a heat medium passage for bypassing the radiator 17 for the flow of the heat medium that has passed through the second heat medium three-way valve 21b. The other end side of the detour passage 19a is connected to the third connecting portion 26c as in the first embodiment.

Next, the circuit connecting portion 25 in the seventh embodiment will be explained. The circuit connection portion 25 in the seventh embodiment is composed of a first connection passage 25a and a second connection portion 26b, as in the first embodiment. As shown in FIG. 28, one end of the first connection passage 25a is connected to one inlet/outlet of the first heat medium three-way valve 21a, as in the first embodiment. The other end side of the first connection passage 25 a is connected to the fifth connection portion 26 e of the low temperature side heat medium circuit 15 .

One end of the second connection passage 25b according to the seventh embodiment is connected to the second connection portion 26b as in the first embodiment. The other end side of the second connection passage 25 b is connected to the fourth connection portion 26 d of the low temperature side heat medium circuit 15 .

Furthermore, a sixth heat medium check valve 22f is arranged in the second connection passage 25b. The sixth heat medium check valve 22f allows the heat medium to flow from the fourth connection portion 26d side to the second connection portion 26b side, and prevents the heat medium from flowing from the second connection portion 26b side to the fourth connection portion 26d side. restrict.

According to the heat management system 1 according to the seventh embodiment configured as shown in FIG. 28, it is possible to realize the first to seventh operation modes in the same manner as in the above-described first embodiment. Here, the operation of each component in the second operation mode and the fourth operation mode will be described as specific examples of the operation mode in the seventh embodiment.

First, the second operation mode according to the seventh embodiment will be explained. In the second operation mode, as in the first embodiment, for example, in spring, autumn, etc., the total amount of waste heat generated in the heat-generating equipment 16 and the amount of heat released in the water-refrigerant heat exchanger 12 is determined by user settings. This is an operation mode that is executed when the amount of heat required for heating is less than or equal to the amount of heat required for heating.

Also in the second operation mode according to the seventh embodiment, the control device 70 operates the first water pump 20a and stops the second water pump 20b. Also, the control device 70 stops the heating device 13 and operates the refrigeration cycle 40 in the dehumidification heating mode.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side, and to open the inflow/outlet on the second connection portion 26b side. occlude. Furthermore, the control device 70 switches the low temperature side on-off valve 28a to the closed state.

Thereby, the heat medium circulates in the heat medium circuit 5 in the second operation mode according to the seventh embodiment. Specifically, in the heat medium circuit 5 in the second operation mode, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16, the sixth The heat medium circulates in the order of the heat medium check valve 22f and the first water pump 20a. Therefore, the 2nd operation mode concerning a 7th embodiment can exhibit the same effect as the 2nd operation mode in a 1st embodiment.

In the second operation mode according to the seventh embodiment, the flow of the heat medium flowing from the first heat medium three-way valve 21a to the first water pump 20a through the heat generating device 16 is changed to the second operation mode of the first embodiment. are different.

Specifically, in the seventh embodiment, the heat medium flowing out from the first heat medium three-way valve 21a flows into the heat medium passage 16a of the heat generating device 16 via the first connection passage 25a and the fifth connection portion 26e. do. The heat medium flowing out of the heat medium passage 16a of the heat generating device 16 flows into the second connection passage 25b through the fourth connection portion 26d. The heat medium flowing through the second connection passage 25b is again sucked into the first water pump 20a via the sixth heat medium check valve 22f and the second connection portion 26b.

Next, a fourth operation mode according to the seventh embodiment will be described. As in the first embodiment, the fourth operation mode is, for example, in spring or autumn (when the outside temperature is 10° C. to 25° C.), the temperature of the heat medium circulating in the heat medium circuit 5 is set in advance. This operation mode is executed when the water temperature is equal to or higher than a reference water temperature (eg, 60°C).

Also in the fourth operation mode according to the seventh embodiment, the control device 70 operates the first water pump 20a and the second water pump 20b with their respective pumping capabilities. Also, the control device 70 stops the heating device 13 and operates the refrigeration cycle 40 in the dehumidification heating mode.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the heater core 11 side and the inflow/outlet on the second connection part 26b side, and to open the inflow/outlet on the first connection passage 25a side. occlude. Furthermore, the control device 70 switches the low temperature side on-off valve 28a to the open state.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b so that the inflow/outlet on the low temperature side open/close valve 28a side and the inflow/outlet on the radiator 17 side are communicated with each other, and the inflow/outlet on the bypass passage 19a side is opened. occlude.

Thereby, the heat medium circulates in the heat medium circuit 5 in the fourth operation mode according to the seventh embodiment. Specifically, in the heat medium circuit 5 in the fourth operation mode according to the seventh embodiment, the first water pump 20a, the water-refrigerant heat exchanger 12, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, The heat medium circulates in order of the first water pump 20a. At the same time, the heat medium circulates in the order of the second water pump 20b, the second heat medium check valve 22b, the heat generating device 16, the low temperature side on-off valve 28a, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b. do.

Here, attention is focused on the flow of the heat medium passing through the heat generating device 16 in the heat medium circuit 5 in the fourth operation mode according to the seventh embodiment. The heat medium flowing out of the second heat medium check valve 22b flows into the heat medium passage 16a of the heat generating device 16 via the fifth connection portion 26e. The heat medium flowing out of the heat medium passage 16a of the heat generating device 16 flows into the low temperature side on-off valve 28a through the fourth connection portion 26d.

As shown in FIG. 7, in the second operation mode of the first embodiment, the heat medium passing through the heat generating device 16 flows from the fourth connection portion 26d toward the fifth connection portion 26e. Further, as shown in FIG. 9, in the fourth operation mode of the first embodiment, the heat medium passing through the heat generating device 16 flows from the fifth connection portion 26e side toward the fourth connection portion 26d side. .

That is, in the heat management system 1 of the first embodiment, the direction of flow of the heat medium passing through the heat medium passage 16a of the heat generating device 16 may change when the operation mode is switched. When the direction of the flow of the heat medium passing through the heat generating device 16 is changed, the flow of the heat medium around the heat generating device 16 is stagnated, and it is assumed that the temperature adjustment of the heat generating device 16 is affected.

In this regard, in the heat management system 1 according to the seventh embodiment, as described using the second operation mode and the fourth operation mode, the direction of the flow of the heat medium passing through the heat generating device 16 is set at the fifth connection portion The direction from the side of 26e to the side of the fourth connecting portion 26d is unified. Therefore, according to the heat management system 1 according to the seventh embodiment, by unifying the direction of flow of the heat medium around the heat-generating equipment 16, smooth circulation of the heat medium is realized even when the operation mode is switched. be able to.

As described above, according to the thermal management system 1 according to the seventh embodiment, even when the configuration of the circuit connection part 25 is changed, the same configuration and operation as those of the first and fourth embodiments can be achieved. The functions and effects obtained can be obtained in the same manner as in the above-described embodiments.

(Eighth embodiment)
Next, the heat management system 1 according to the eighth embodiment will be explained with reference to FIG. 29 . The thermal management system 1 according to the eighth embodiment has the same basic configuration as the thermal management system 1 according to the second embodiment, and the connection mode of the bypass passage 18, the first connection passage 25a, and the second connection passage 25b. etc. are different. Differences from the second embodiment will be specifically described below.

As shown in FIG. 29, in the low temperature side heat medium circuit 15 according to the eighth embodiment, the second heat medium three-way valve 21b is provided in the heat medium passage connecting the heat medium inlet side of the radiator 17 and the ninth connection portion 26i. are placed. One inlet/outlet of the second heat medium three-way valve 21b is connected to the ninth connecting portion 26i, and the other inlet/outlet of the second heat medium three-way valve 21b is connected to the heat medium inlet of the radiator 17. . Another inlet/outlet of the second heat medium three-way valve 21b is connected to the third connection portion 26c via the detour passage 19a.

In the low temperature side heat medium circuit 15 of the eighth embodiment, a low temperature side on-off valve 28a is arranged in the heat medium passage connecting the fourth connection portion 26d and the ninth connection portion 26i. The low temperature side on-off valve 28a has the same configuration as in the seventh embodiment.

In the low temperature side heat medium circuit 15 according to the eighth embodiment, the eleventh connection 26k is arranged in the heat medium passage connecting the tenth connection 26j and the inlet side of the second heat medium check valve 22b. It is The other end side of the bypass passage 18 is connected to the eleventh connection portion 26k.

One end side of the bypass passage 18 is connected to the first connection portion 26a. The bypass passage 18 in the eighth embodiment has the first heat medium check valve 22a as in the second embodiment. The difference is that it is not connected to

Moreover, the heat management system 1 according to the eighth embodiment differs from the second embodiment in terms of the configuration of the circuit connecting portion 25 . As in the seventh embodiment, one end of the first connection passage 25a according to the eighth embodiment is connected to one inlet/outlet of the first heat medium three-way valve 21a, and the other end of the first connection passage 25a side is connected to the fifth connecting portion 26e.

One end of the second connection passage 25b according to the eighth embodiment is connected to the second connection portion 26b as in the seventh embodiment, and the other end of the second connection passage 25b is connected to the fourth connection passage 25b. It is connected to the connection portion 26d. A sixth heat medium check valve 22f is arranged in the second connection passage 25b.

According to the heat management system 1 according to the eighth embodiment configured in this manner, the eighth to nineteenth operation modes can be realized, as in the second embodiment. In the heat management system 1 according to the eighth embodiment, the configurations of the first connection passage 25a and the second connection passage 25b are configured in the same manner as in the seventh embodiment. Therefore, according to the heat management system 1, the flow direction of the heat medium passing through the heat-generating equipment 16 can be unified in the direction from the fifth connection portion 26e to the fourth connection portion 26d in all operation modes.

As described above, according to the heat management system 1 according to the eighth embodiment, even when the configuration of the circuit connection portion 25 is changed based on the configuration according to the second embodiment, the same configuration as the above-described embodiment And, the effects obtained from the operation can be obtained in the same manner as in the above-described embodiment.

(Ninth embodiment)
Next, the heat management system 1 according to the ninth embodiment will be described with reference to FIG. 30 . The heat management system 1 according to the ninth embodiment has the same basic configuration as the heat medium circuit 5 according to the eighth embodiment, and the configuration of the circuit connecting portion 25 and the like is different. Further, a refrigerating cycle 40 configured in the same manner as in the fourth embodiment is employed as the refrigerating cycle 40 in the ninth embodiment.

That is, the refrigeration cycle 40 according to the ninth embodiment has a water-cooled condenser 91 functioning as a radiator and a chiller 92 functioning as a heat absorber. can be selectively activated.

As shown in FIG. 30, in the heat medium circuit 5 according to the ninth embodiment, the heat medium inlet side of the heat medium passage 91b of the water-cooled condenser 91 is connected to the first connection portion 26a. The heat medium outlet side of the heat medium passage 91 b of the water-cooled condenser 91 is connected to the inlet side of the heating passage of the heating device 13 .

The heat medium inlet side of the heat medium passage 92b of the chiller 92 is connected to the eighth connecting portion 26h. The heat medium outlet side of the heat medium passage 92 b of the chiller 92 is connected to the inlet side of the heat medium passage 30 a of the battery 30 .

Further, in the heat medium circuit 5 according to the ninth embodiment, the second connection passage 25b and the sixth heat medium check valve 22f are removed from the configuration according to the eighth embodiment. The first connection passage 25a connects one inlet/outlet of the first heat medium three-way valve 21a and the fifth connection portion 26e, as in the eighth embodiment.

Furthermore, in the ninth embodiment, the low temperature side on-off valve 28a is arranged in the heat medium pipe connecting the fifth connection portion 26e and the eleventh connection portion 26k. The configuration of the low temperature side on-off valve 28a is the same as in the above-described embodiment.

According to the heat management system 1 according to the ninth embodiment configured in this way, it is possible to realize a plurality of operation modes, excluding the 11th and 14th operation modes, among the 8th to 19th operation modes. .

First, as one of the operation modes in the ninth embodiment, the operation of each component in the tenth operation mode will be described. In the tenth operation mode in the ninth embodiment, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in cooling mode.

Then, the control device 70 controls the operation of the first heat medium three-way valve 21a so that the inflow/outlet on the heater core 11 side and the inflow/outlet on the first connection passage 25a side are communicated with each other, and the inflow/outlet on the side of the sixth connection portion 26f. Block the exit.

In addition, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the ninth connecting portion 26i and the inflow/outlet on the side of the detour passage 19a, and to open the inflow/outlet on the side of the radiator 17. occlude.

Furthermore, the control device 70 controls the operation of the third heat medium three-way valve 21c to connect the inflow/outlet on the discharge port side of the first water pump 20a and the inflow/outlet on the eighth connecting portion 26h side, The inflow/outlet on the side of the connecting portion 26a is closed.

Then, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c. Further, the control device 70 controls the operation of the low temperature side on-off valve 28a to close the heat medium passage connecting the fifth connection portion 26e and the eleventh connection portion 26k.

As a result, in the heat medium circuit 5 in the tenth operation mode in the ninth embodiment, the first water pump 20a, the third heat medium three-way valve 21c, the chiller 92, the battery 30, the fourth heat medium check valve 22d, the first The heat medium circulates in order of the water pump 20a.

At the same time, the second water pump 20b, the first heat medium check valve 22a, the water cooling condenser 91, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat generating device 16, the second heat medium three-way valve 21b, the second The heat medium circulates in order of the water pump 20b.

That is, in the heat medium circuit 5 in the tenth operation mode, a heat medium circulation route passing through the chiller 92 and the battery 30 and a heat medium circulation route passing through the water-cooled condenser 91, the heater core 11, the heating device 13, and the heat generating device 16 are formed independently.

Therefore, according to the tenth operation mode according to the ninth embodiment, the temperature adjustment of the heat-generating device 16, the heating of the vehicle interior, and the cooling of the battery 30 can be performed appropriately. Further, in the tenth operation mode, in addition to the waste heat of the heat generating device 16, the heat generating portion of the heating device 13 is used as the heating heat source for heating the passenger compartment. As a result, in the tenth operation mode, it is possible to cope with a case where a high heating capacity is required for heating the vehicle interior.

Note that the thermal management system 1 according to the ninth embodiment can realize the same operation as in the tenth operation mode, similarly to the second embodiment described above, and therefore can realize the eighteenth operation mode. . That is, the defrosting of the outdoor heat exchanger 43 and the heating of the passenger compartment using the waste heat of the heat-generating equipment can be performed in parallel by the eighteenth operation mode according to the ninth embodiment.

Next, the operation of each component in the 16th operation mode will be described as the operation mode in the ninth embodiment. In the 16th operation mode in the ninth embodiment, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in heating mode.

The control device 70 controls the operation of the first heat medium three-way valve 21a to allow communication between the inflow/outlet on the heater core 11 side and the inflow/outlet on the sixth connection portion 26f side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the ninth connection portion 26i and the inflow/outlet on the side of the radiator 17, and the inflow/outlet on the side of the detour passage 19a. occlude.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to connect the inflow/outlet on the discharge port side of the first water pump 20a and the inflow/outlet on the first connection portion 26a side, and the eighth heat medium three-way valve 21c. The inflow/outlet on the side of the connecting portion 26h is closed.

Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c. The control device 70 also controls the operation of the low-temperature side on-off valve 28a to open the heat medium passage connecting the fifth connection portion 26e and the eleventh connection portion 26k.

Thus, in the sixteenth operation mode according to the ninth embodiment, the first water pump 20a, the third heat medium three-way valve 21c, the water-cooled condenser 91, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first The heat medium circulates in order of the water pump 20a.

At the same time, the second water pump 20b, the fifth heat medium check valve 22e, the chiller 92, the battery 30, the heat medium opening/closing valve 27, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b are turned on in this order. circulates. Furthermore, the heat medium circulates in the order of the second water pump 20b, the low-temperature side on-off valve 28a, the heat generating device 16, the second heat medium three-way valve 21b, the radiator 17, and the second water pump 20b.

That is, in the heat medium circuit 5 in the sixteenth operation mode, the heat medium circulation path passing through the water-cooled condenser 91 and the heater core 11 and the heat medium circulation path passing through the battery 30, the heat-generating device 16, and the radiator 17 are independent of each other. formed by

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the battery 30 and the heat generating device 16 are separated from the flow of the heat medium passing through the second water pump 20b and the radiator 17. A circulation path is formed in which the flows of the heat medium passing through are connected in parallel. Therefore, according to the 16th operation mode which concerns on 9th Embodiment, vehicle interior heating and cooling of the heat generating apparatus 16 and the battery 30 can each be performed appropriately.

Next, as the operation mode in the ninth embodiment, the operation of each component in the nineteenth operation mode will be described. In the nineteenth operation mode in the ninth embodiment, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user. Furthermore, the controller 70 operates the refrigeration cycle 40 in heating mode.

The control device 70 controls the operation of the first heat medium three-way valve 21a to allow communication between the inflow/outlet on the heater core 11 side and the inflow/outlet on the sixth connection portion 26f side, and to open the inflow/outlet on the first connection passage 25a side. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the ninth connection portion 26i and the inflow/outlet on the side of the detour passage 19a, and the inflow/outlet on the side of the radiator 17. occlude.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to connect the inflow/outlet on the discharge port side of the first water pump 20a and the inflow/outlet on the first connection portion 26a side, and the eighth heat medium three-way valve 21c. The inflow/outlet on the side of the connecting portion 26h is closed.

Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to open the heat medium passage of the third connection passage 25c. The control device 70 also controls the operation of the low-temperature side on-off valve 28a to open the heat medium passage connecting the fifth connection portion 26e and the eleventh connection portion 26k.

Thereby, in the nineteenth operation mode according to the ninth embodiment, the first water pump 20a, the third heat medium three-way valve 21c, the water-cooled condenser 91, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the first The heat medium circulates in order of the water pump 20a.

At the same time, the heat medium circulates in the order of the second water pump 20b, the fifth heat medium check valve 22e, the chiller 92, the battery 30, the heat medium opening/closing valve 27, the second heat medium three-way valve 21b, and the second water pump 20b. . Furthermore, the heat medium circulates in the order of the second water pump 20b, the low-temperature side on-off valve 28a, the heat generating device 16, the second heat medium three-way valve 21b, and the second water pump 20b.

That is, in the heat medium circuit 5 in the nineteenth operation mode according to the ninth embodiment, the heat medium circulation route via the water-cooled condenser 91 and the heater core 11 and the heat medium circulation route via the battery 30 and the heat generating device 16 are , are formed independently.

In the circulation path of the heat medium discharged by the second water pump 20b, the flow of the heat medium passing through the battery 30 and the chiller 92 and the heat generating device 16 with respect to the flow of the heat medium passing through the second water pump 20b. A circulation path is formed in which the flows of the heat medium passing through are connected in parallel.

Therefore, in the nineteenth operation mode, the vehicle interior can be heated using the refrigerant of the refrigerating cycle 40 and the heat generating portion of the heating device 13 as heat sources. In addition, it is possible to suppress the temperature drop of the heat-generating device 16 and the battery 30 and maintain the heat-generating device 16 and the battery 30 within an appropriate temperature range. That is, according to the heat management system 1 in the nineteenth operation mode, it is possible to properly heat the vehicle interior and maintain the temperatures of the heat-generating device 16 and the battery 30 .

Furthermore, the thermal management system 1 according to the ninth embodiment can realize the twentieth operation mode. In the twentieth operation mode, the control device 70 operates the first water pump 20a and the second water pump 20b with their predetermined pumping capabilities. Further, the control device 70 operates the heating device 13 to generate heat with a heat generation amount predetermined by the user.

The control device 70 controls the operation of the first heat medium three-way valve 21a to connect the inflow/outlet on the side of the heater core 11 and the inflow/outlet on the side of the first connection passage 25a, and to open the inflow/outlet on the side of the sixth connection portion 26f. occlude.

Then, the control device 70 controls the operation of the second heat medium three-way valve 21b to connect the inflow/outlet on the side of the ninth connection portion 26i and the inflow/outlet on the side of the detour passage 19a, and the inflow/outlet on the side of the radiator 17. occlude.

Further, the control device 70 controls the operation of the third heat medium three-way valve 21c to connect the inflow/outlet on the discharge port side of the first water pump 20a and the inflow/outlet on the first connection portion 26a side, and the eighth heat medium three-way valve 21c. The inflow/outlet on the side of the connecting portion 26h is closed.

Further, the control device 70 controls the operation of the heat medium opening/closing valve 27 to close the heat medium passage of the third connection passage 25c. Further, the control device 70 controls the operation of the low temperature side on-off valve 28a to close the heat medium passage connecting the fifth connection portion 26e and the eleventh connection portion 26k.

Thus, in the twentieth operation mode according to the ninth embodiment, the first water pump 20a, the third heat medium three-way valve 21c, the water-cooled condenser 91, the heating device 13, the heater core 11, the first heat medium three-way valve 21a, the heat-generating equipment In order of 16, the heat medium flows. The heat medium flowing out of the heat generating device 16 passes through the second heat medium three-way valve 21b, the second water pump 20b, the fifth heat medium check valve 22e, the chiller 92, the battery 30, the fourth heat medium check valve 22d, the first It flows in order of the water pump 20a.

That is, in the heat medium circuit 5 in the twentieth operation mode according to the ninth embodiment, a heat medium circulation path passing through the water-cooled condenser 91, the heating device 13, the heater core 11, the heat generating device 16, the chiller 92, and the battery 30 is formed. be.

Therefore, in the twentieth operation mode, the heat management system 1 can heat the vehicle interior and adjust the temperatures of the heat generating device 16 and the battery 30 using the refrigerant of the refrigeration cycle 40 and the heat generating portion of the heating device 13 as heat sources. .

As described above, according to the heat management system 1 according to the ninth embodiment, even when the configuration of the refrigeration cycle 40 and the like is changed based on the configuration according to the eighth embodiment, The effects of the configuration and operation can be obtained in the same manner as in the above-described embodiment.

(Tenth embodiment)
Next, the heat management system 1 according to the tenth embodiment will be described with reference to FIG. 31 . The heat management system 1 according to the tenth embodiment has the same basic configuration as the heat management system 1 according to the ninth embodiment. are different.

As shown in FIG. 31, in the heat medium circuit 5 according to the tenth embodiment, the bypass passage 18 connecting the first connection portion 26a and the eleventh connection portion 26k is removed. Therefore, in the eighth embodiment, the first heat medium check valve 22a arranged in the bypass passage 18 is also removed.

Further, in the ninth embodiment, the low temperature side on-off valve 28a is arranged between the fifth connection portion 26e and the tenth connection portion 26j. , the second heat medium check valve 22b is arranged. The second heat medium check valve 22b according to the tenth embodiment allows the heat medium to flow from the tenth connection portion 26j side to the fifth connection portion 26e side, and allows the heat medium to flow from the fifth connection portion 26e side to the tenth connection portion. 26j side is prohibited.

According to the heat management system 1 according to the tenth embodiment configured in this way, even when the configuration of the heat medium circuit 5 is simplified with respect to the ninth embodiment, in the eighth to nineteenth operation modes , 9th to 11th, 13th, 14th and 18th operation modes can be realized.

As described above, according to the heat management system 1 according to the tenth embodiment, even when the heat medium circuit 5 according to the ninth embodiment is simplified, the configuration and operation common to those of the above-described embodiments It is possible to obtain the same effects as in the above-described embodiment.

(Other embodiments)
The present disclosure is not limited to the above-described embodiments, and can be variously modified as follows without departing from the scope of the present disclosure.

(1) In the above-described embodiment, an example in which the thermal management system 1 according to the present disclosure is applied to a vehicle air conditioner with an in-vehicle device cooling function has been described, but the application of the thermal management system 1 is not limited to this. The heat management system 1 may be applied to stationary air conditioners and the like without being limited to vehicles. For example, it may be applied to an air conditioner with a server cooling function that air-conditions a room in which the server is housed while appropriately adjusting the temperature of the server (computer).

(2) In addition, in the heat medium circuit of the heat management system, the heat-generating equipment 16 includes a plurality of components. may be connected in series or in parallel. It is also possible for the heat-generating device 16 to be a single component.

(3) In the above-described embodiment, the first heat medium three-way valve 21a, the second heat medium three-way valve 21b, the third heat medium three-way valve 21c, and the heat medium opening/closing valve 27 are used as the circuit switching units in the heat medium circuit 5. was used, but it is not limited to this. If the circuit configuration in the heat medium circuit 5 can be switched, other configurations such as a combination of a plurality of on-off valves can be adopted.

(4) In addition, in the above-described embodiment, an example in which an aqueous ethylene glycol solution is employed as the heat medium in the heat medium circuit 5 has been described, but the heat medium is not limited to this. For example, a solution containing dimethylpolysiloxane, a nanofluid, or the like, an antifreeze solution, or the like can be employed as the heat medium. Furthermore, it is also possible to use an insulating liquid medium such as oil as the heat medium.

(5) And the configuration of the refrigeration cycle 40 in the present disclosure is not limited to the embodiment described above. For example, an outdoor heat exchanger having a modulator may be employed as the outdoor heat exchanger 43 that constitutes the refrigeration cycle 40 . Similarly, as the water-refrigerant heat exchanger 12, a water-refrigerant heat exchanger 12 having a liquid storage tank may be employed.

(6) In the above-described embodiment, the evaporating pressure regulating valve 48 is employed as a component of the refrigeration cycle 40, but the evaporating pressure regulating valve 48 is not an essential component. For example, in a refrigeration cycle device in which the refrigerant evaporation temperature in the water-refrigerant heat exchanger 12 does not drop below 0° C. in the cooling cooling mode, the evaporation pressure control valve 48 may be eliminated.

(7) In the above-described embodiment, an example in which the four-way valve 42 is employed as the refrigerant circuit switching unit of the refrigeration cycle 40 has been described. Other configurations can be employed.

(8) In addition, in the embodiment described above, an example in which R1234yf is used as the refrigerant in the refrigeration cycle 40 has been described, but the refrigerant is not limited to this. For example, R134a, R600a, R410A, R404A, R32, R407C, etc. may be employed. Alternatively, a mixed refrigerant or the like in which a plurality of types of these refrigerants are mixed may be employed.

REFERENCE SIGNS LIST 1 heat management system 10 high temperature side heat medium circuit 11 heater core 12 water-refrigerant heat exchanger 15 low temperature side heat medium circuit 16 heat generating device 17 radiator 25 circuit connection section 40 refrigeration cycle 70c heat medium circuit switching control section

Claims (17)

A heat medium/refrigerant heat exchanger (12) that adjusts the temperature of the heat medium by exchanging heat with the refrigerant circulating in the refrigeration cycle (40), and radiates the heat of the heat medium to the air that is blown into the air-conditioned space. a high temperature side heat medium circuit (10) connected to a heater core (11) so that the heat medium can circulate;
The heat medium is circulated through a radiator (17) that radiates the heat of the heat medium to the outside and a heat generating device (16) that generates heat during operation and is temperature-controlled by the heat of the heat medium. a connected low-temperature side heat medium circuit (15);
a circuit connection part (25) for connecting the high temperature side heat medium circuit and the low temperature side heat medium circuit so that the heat medium can flow in and out;
a circuit switching unit (70c) for switching the flow of the heat medium in the high temperature side heat medium circuit, the low temperature side heat medium circuit, and the circuit connecting portion;
an operation mode in which the heat medium heated by the heat medium-refrigerant heat exchanger circulates through the heater core;
Switched by the circuit switching unit between an operation mode in which the heat medium heated by the heat generating device and the heat medium refrigerant heat exchanger circulates through the heater core ,
The refrigeration cycle has an outdoor heat exchanger (43) for exchanging heat between the refrigerant and the outside air,
Switched by the circuit switching unit to an operation mode in which the heat medium is circulated through the heat medium-refrigerant heat exchanger and the heater core and the heat medium is restricted from flowing into and out of the heat generating device,
A heat management system in which the heat of the heat medium is absorbed by the heat medium-refrigerant heat exchanger and supplied to the outdoor heat exchanger . By circulating the heated heat medium through the heater core, the space to be air-conditioned is heated,
2. The heat management system according to claim 1, wherein the circuit switching unit switches to an operation mode in which the heat medium is circulated through the heat-generating device independently of the heat medium circulation path through the heater core. . 3. The thermal management system according to claim 2, wherein the radiator is included in the circulation path of the heat medium passing through the heat-generating equipment. The circuit switching unit switches to an operation mode in which the heat medium heated by the heat-generating device is circulated through the radiator and the flow of the heat medium into and out of the heat medium-refrigerant heat exchanger is restricted. 4. A thermal management system according to any one of claims 1-3 . In an operation mode in which the heat medium heated by the heat-generating device and the heat medium-refrigerant heat exchanger circulates through the heater core,
When the high temperature condition regarding the temperature of the heat medium is satisfied, the operation mode in which the heat medium is circulated through the radiator in addition to the heat generating device, the heat medium-refrigerant heat exchanger, and the heater core is selected. 5. The thermal management system according to any one of claims 1 to 4 , which is switched by a circuit switching unit. In an operation mode in which the heat medium heated by the heat-generating device and the heat medium-refrigerant heat exchanger circulates through the heater core,
When the temperature of the heat medium is higher than a predetermined reference temperature, the heat medium is circulated through the heat medium-refrigerant heat exchanger and the heater core,
The operation mode is switched by the circuit switching unit to an operation mode in which the heat medium is circulated via the heat generating device and the radiator independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the heater core. 5. A thermal management system according to any one of claims 1-4 . The high temperature side heat medium circuit has a heating device (13) that heats the heat medium flowing into the heater core during operation and can arbitrarily adjust the amount of heat for heating the heat medium. 7. A thermal management system according to any one of 1 to 6 . a device heat exchange unit (30a) connected to allow the heat medium to flow in and out and exchange heat between the target device (30) whose temperature is to be adjusted and the heat medium;
The heat medium that has passed through the heat medium refrigerant heat exchanger is circulated through the equipment heat exchange unit,
2. With respect to the flow of the heat medium, the circuit switching unit switches to an operation mode in which the heater core is independent of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the equipment heat exchange unit. 7. A thermal management system according to any one of claims 1-6 . When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the device heat exchange unit,
The circuit is switched to an operation mode in which the heat medium is circulated via the heater core and the heat-generating device independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the device heat exchange unit. 9. The thermal management system of claim 8 , wherein the thermal management system is switched by the unit. When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the device heat exchange unit,
an operation mode in which the heat medium is circulated so as to pass through the heater core, the heat-generating device, and the radiator, independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the device heat exchange unit; 10. The thermal management system according to claim 8 or 9 , wherein the switching is performed by the circuit switching unit. a device heat exchange unit (30a) connected to allow the heat medium to flow in and out and exchange heat between the target device (30) whose temperature is to be adjusted and the heat medium;
The heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the heater core,
2. With respect to the flow of the heat medium, the circuit switching unit switches to an operation mode in which the equipment heat exchange unit is independent of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the heater core. 11. A thermal management system according to any one of claims 1-10 . When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the heater core,
The circuit switching unit is set to an operation mode in which the heat medium is circulated via the device heat exchange unit and the radiator independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the heater core. 12. The thermal management system of claim 11 , wherein the thermal management system is switched by . When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the heater core,
an operation mode in which the heat medium is circulated so as to pass through the device heat exchange unit, the radiator, and the heat-generating device independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the heater core; 13. The thermal management system according to claim 11 or 12 , wherein the switching is performed by the circuit switching unit. When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the heater core,
The circuit is set to an operation mode in which the heat medium is circulated so as to pass through the equipment heat exchange unit and the heat generating equipment independently of the heat medium circulation path including the heat medium-refrigerant heat exchanger and the heater core. 14. The thermal management system according to any one of claims 11 to 13 , switched by a switching unit. When the heat medium that has passed through the heat medium-refrigerant heat exchanger is circulated through the heater core,
Independently of the circulation of the heat medium through the heat medium-refrigerant heat exchanger and the heater core, the operation mode is switched by the circuit switching unit to an operation mode that limits the inflow and outflow of the heat medium to and from the equipment heat exchange unit. 15. A thermal management system according to any one of claims 11-14 . The high temperature side heat medium circuit has a heating device (13) that heats the heat medium flowing into the heater core during operation and can arbitrarily adjust the amount of heat for heating the heat medium. 16. A thermal management system according to any one of 8-15. The heat medium that has passed through the heat medium-refrigerant heat exchanger is branched into a flow that passes through the heating device and the heater core and a flow that passes through the device heat exchange unit,
An operation in which the circulation of the heat medium via the heat medium/refrigerant heat exchanger, the heating device, and the heater core and the circulation of the heat medium via the heat medium/refrigerant heat exchanger and the device heat exchange section occur simultaneously. 17. The thermal management system of claim 16 , wherein the mode is switched by the circuit switching unit.

Images