CN212921063U

CN212921063U - Automobile air conditioning system

Info

Publication number: CN212921063U
Application number: CN202021097611.XU
Authority: CN
Inventors: 李�杰; 高彩辰
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-04-09
Anticipated expiration: 2030-06-15

Abstract

The utility model provides an automobile air conditioning system. The system comprises a refrigerating system and a condensed water system, wherein the refrigerating system comprises a compressor, a four-way valve, an external heat exchanger assembly, a first throttling device, a second throttling device and an internal first heat exchanger. The outlet of the compressor is connected with the first end of the four-way valve through a first branch, and the inlet of the compressor is connected with the second end of the four-way valve through a second branch; the first heat exchanger in the vehicle is connected with a third end of the four-way valve through a third branch, the heat exchanger assembly outside the vehicle is connected with a fourth end of the four-way valve through a fourth branch, the first heat exchanger in the vehicle and the heat exchanger assembly outside the vehicle are connected through a fifth branch, the first throttling device is arranged on the fifth branch and is positioned at one end close to the first heat exchanger in the vehicle, and the second throttling device is arranged on the fifth branch and is positioned at one end close to the heat exchanger assembly outside the vehicle; the condensed water system collects condensed water generated by the first heat exchanger in the vehicle and conveys the condensed water to the heat exchanger assembly outside the vehicle or the outside of the vehicle. The system can improve the refrigeration or heating efficiency and increase the comfort level.

Description

Automobile air conditioning system

Technical Field

The utility model relates to an automobile air conditioner field especially relates to an automobile air conditioning system.

Background

The tractor plays an irreplaceable role in the economic development process of China. Along with the increase of the retention time in the tractor, people attach more and more importance to the air conditioning system in the car, and they hope that the air conditioning system can the noise lower, reduce the consumption of fuel, increase the comfort level, and the operation is comparatively convenient. The refrigeration and heating of the existing tractor are two independent systems, the total parts of the system are more, the cost is high, and the space occupied in the tractor is large; in the south of China, the weather is humid mostly, when the dehumidification function of the air conditioner is started, the temperature of air blown into the vehicle by the fan is low, and the comfort level of people is greatly reduced; in winter in northern China, the temperature is low, the heating function of the traditional air conditioning system is started, and the temperature in the vehicle is slowly increased; the air conditioning system of the tractor generally has the problem of waste of condensed water, and cannot realize secondary utilization of energy.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an air conditioning system for a vehicle to solve the above problems, and more particularly to a vehicle air conditioning system

The utility model discloses a first aspect discloses a vehicle air conditioning system, vehicle air conditioning system includes refrigerating system and condensate system, wherein refrigerating system includes: a compressor, a four-way valve, an external heat exchanger component, a first throttling device, a second throttling device and an internal first heat exchanger,

the outlet of the compressor is connected to the first end of the four-way valve through a first branch, and the inlet of the compressor is connected to the second end of the four-way valve through a second branch;

the first heat exchanger in the automobile is connected to a third end of the four-way valve through a third branch, the heat exchanger assembly outside the automobile is connected to a fourth end of the four-way valve through a fourth branch, the first heat exchanger in the automobile and the heat exchanger assembly outside the automobile are connected through a fifth branch, the first throttling device is arranged on the fifth branch and is positioned at one end close to the first heat exchanger in the automobile, and the second throttling device is arranged on the fifth branch and is positioned at one end close to the heat exchanger assembly outside the automobile;

and the condensed water system is used for collecting condensed water generated by the first heat exchanger in the automobile and conveying the condensed water to the heat exchanger assembly outside the automobile so as to cool the heat exchanger assembly outside the automobile or conveying the condensed water to the outside of the automobile so as to discharge the condensed water outside the automobile.

As a further alternative it is possible that,

the condensate system includes: a condensate pipe, a water collecting part, a condensate pump, a water outlet and a spraying part which are arranged on the condensate pipe,

the condensate pipe comprises a first end of the condensate pipe and a second end of the condensate pipe, the first end of the condensate pipe extends towards the first heat exchanger in the vehicle, the second end of the condensate pipe extends towards the heat exchanger component outside the vehicle,

the water collecting part is connected to the first end of the condensate pipe, is positioned below the first heat exchanger in the vehicle and is used for collecting condensate water generated on the first heat exchanger in the vehicle;

the water outlet is arranged at the second end of the condensate pipe, is communicated with the outside of the automobile and is used for discharging the collected condensate water outside the automobile;

the spraying part is arranged at the second end of the condensate pipe, faces the external heat exchanger assembly and is used for spraying and cooling the external heat exchanger assembly;

the condensate pump is arranged between the first end of the condensate pipe and the second end of the condensate pipe and used for providing power for conveying the condensate.

As a further alternative it is possible that,

the refrigeration system further includes: an air cavity and an inner fan arranged in the air cavity,

wherein: the air cavity is provided with an air inlet and an air outlet; the inner fan is arranged on one side close to the air inlet; the first heat exchanger in the vehicle is arranged in the air cavity and is positioned at one side close to the air outlet.

As a further alternative it is possible that,

the refrigeration system further includes: an air purification module disposed in the air chamber,

the air purification module is positioned between the first heat exchanger and the inner fan in the vehicle and used for purifying air.

As a further alternative it is possible that,

the refrigeration system further includes: an in-vehicle second heat exchanger disposed in the air chamber,

the second heat exchanger in the vehicle is positioned between the first heat exchanger in the vehicle and the air purification module, one end of the second heat exchanger in the vehicle is connected with the second branch through a sixth branch, the other end of the second heat exchanger in the vehicle is connected with the fifth branch through a seventh branch,

wherein: a first three-way valve and a second three-way valve are sequentially arranged on the fifth branch along the direction from the first throttling device to the second throttling device; a third three-way valve is arranged on the sixth branch; one end of the seventh branch is connected with one port of the first three-way valve, and the other end of the seventh branch is connected with the second heat exchanger in the vehicle; and one port of the second three-way valve and one port of the third three-way valve are connected with an eighth branch.

As a further alternative it is possible that,

the first throttling means includes: and the first electromagnetic valve and the first electronic expansion valve are connected with each other and arranged on the fifth branch.

As a further alternative it is possible that,

the exterior heat exchanger assembly includes: an outer fan and a first heat exchanger outside the vehicle positioned in the air supply direction of the outer fan,

wherein the spraying portion orientation first heat exchanger setting outside the car is in order to realize cooling down the outer heat exchanger subassembly of car.

As a further alternative it is possible that,

the exterior heat exchanger assembly further includes: a second heat exchanger external to the vehicle located between the external fan and the first heat exchanger external to the vehicle,

the first heat exchanger outside the vehicle and the second heat exchanger outside the vehicle are connected in parallel through a pipeline and are arranged between the fourth branch and the fifth branch, a second electromagnetic valve is arranged on the pipeline on one side, connected with the fourth branch, of the first heat exchanger outside the vehicle, and a third electromagnetic valve is arranged on the pipeline on one side, connected with the fourth branch, of the second heat exchanger outside the vehicle.

As a further alternative it is possible that,

the second throttling means includes: a first throttling assembly and a second throttling assembly,

the first throttling assembly is arranged on a pipeline on one side, connected with the fifth branch, of the first heat exchanger outside the vehicle, and comprises: the fourth electromagnetic valve and the second electronic expansion valve are arranged in parallel;

the second throttling component is arranged on a pipeline on one side, connected with the fifth branch, of the second heat exchanger outside the vehicle, and comprises: and the fifth electromagnetic valve and the third electronic expansion valve are arranged in parallel.

As a further alternative it is possible that,

the automotive air conditioning system further includes: and the waste heat exchange system is used for heating a refrigerant in front of an inlet of the compressor by utilizing heat generated by the engine during driving of the automobile so as to improve the superheat degree of the refrigerant.

As a further alternative it is possible that,

the waste heat exchange system comprises: an engine waste heat exchange assembly, an expansion water tank, a plate heat exchanger, a third heat exchanger outside the vehicle and a circulating water pump which are connected in sequence through pipelines and form a circulating loop,

the engine waste heat exchange assembly is used for absorbing heat generated by the engine in the working process;

the expansion water tank is used for storing and supplementing secondary refrigerant in the waste heat exchange system and balancing the internal and external pressure of the waste heat exchange system;

the plate heat exchanger is arranged on the second branch and used for heating the refrigerant in the second branch in front of the inlet of the compressor;

the third heat exchanger outside the vehicle is used for dissipating the heat left after the heat exchange of the plate heat exchanger to the outside of the vehicle;

and the circulating water pump is used for providing power for the circulation of the secondary refrigerant in the waste heat exchange system.

As a further alternative it is possible that,

the waste heat exchange system is also used for absorbing heat generated by an engine and then matching with the first heat exchanger and/or the second heat exchanger in the vehicle to reheat air heated by the first heat exchanger and/or the second heat exchanger in the vehicle so as to realize double heating,

wherein the waste heat exchange system further comprises: a secondary refrigerant heat exchanger,

one end of the secondary refrigerant heat exchanger is connected between the third heat exchanger outside the vehicle and the expansion water tank through a pipeline, and the other end of the secondary refrigerant heat exchanger is connected between the circulating water pump and the third heat exchanger outside the vehicle through a pipeline.

As a further alternative it is possible that,

the secondary refrigerant heat exchanger is arranged in an air cavity of the refrigerating system and is positioned on one side, far away from the inner fan, of the first heat exchanger in the vehicle.

Has the advantages that:

the utility model discloses a with the refrigeration of traditional tractor and the system of heating integrate, adopt an electric compressor, increase the condensate water utilization system for the cooling of outer condenser of car realizes the repetitious utilization of energy.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

Fig. 1 shows a schematic structural diagram of an air conditioning system of a traveling and parking integrated tractor according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a cooling mode of the air conditioning system in parking according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a cooling mode of the air conditioning system during driving according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a fast cooling mode of the air conditioning system in parking according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a fast cooling mode of the air conditioning system during traveling according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating a heating mode of a parking air-conditioning system according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a heating and dehumidifying mode of a parking air-conditioning system according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a defrosting mode of an air conditioning system according to an embodiment of the present invention;

fig. 9 shows a heating schematic diagram of the secondary refrigerant heat exchanger during driving according to an embodiment of the present invention;

fig. 10 shows a thermal diagram of a rapid modeling mode of a traffic air-conditioning system according to an embodiment of the present invention.

In the figure: 1-compressor, 2-gas-liquid separator, 310-first heat exchanger in vehicle, 320-second heat exchanger in vehicle, 410-first heat exchanger out of vehicle, 420-second heat exchanger out of vehicle, 430-third heat exchanger out of vehicle, 510-first three-way valve, 520-second three-way valve, 530-third three-way valve, 610-first electromagnetic valve, 620-second electromagnetic valve, 630-third electromagnetic valve, 640-fourth electromagnetic valve, 650-fifth electromagnetic valve, 7-air cavity, 8-air purification module, 9-inner fan, 10-plate heat exchanger, 11-four-way valve, 12-outer fan, 1310-circulating water pump, 1320-condensed water pump, 1410-a first electronic expansion valve, 1420-a second electronic expansion valve, 1430-a third electronic expansion valve, 15-an engine waste heat exchange assembly, 16-a spray head, 17-an expansion water tank, 18-a water pan, 19-a coolant heat exchanger, L1-a first branch, L2-a second branch, L3-a third branch, L4-a fourth branch, L5-a fifth branch, L6-a sixth branch, L7-a seventh branch, and L8-an eighth branch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The refrigeration and heating systems of the traditional tractor are two independent systems, the total parts of the system are more, the cost is high, and the space occupied in the tractor is large; when the traditional air conditioning system of the tractor dehumidifies, the temperature blown to the interior of the vehicle is low, and the comfort level of people in the vehicle is low; when the temperature of the traditional tractor air conditioning system is lower in winter, the heating efficiency is lower, so that the temperature in the vehicle rises slowly; when the traditional tractor air conditioning system is used for cooling, condensed water is discharged outside an HVAC (air conditioning system) and is not utilized. The utility model integrates the refrigeration and heating system of the traditional tractor and shares one electric compressor; a condensed water utilization system is added, so that the cooling of the condenser outside the vehicle is accelerated, and the repeated utilization of energy is realized; the double heating of the engine waste heat and a heat pump system (the air conditioning system heats by using an in-vehicle heat exchanger) is utilized to improve the in-vehicle temperature rise efficiency; the waste heat of the engine can also improve the superheat degree of the refrigerant; and a heat exchanger and an air purification module are added in the HVAC, so that the temperature in the vehicle can be increased and the air can be purified while the dehumidification is realized, and the comfort is improved.

To further illustrate the technical solution of the present invention, the following specific examples are provided with reference to fig. 1 to 10.

Example 1

As shown in fig. 1, in the present embodiment, there is provided a vehicle air conditioning system including a refrigeration system and a condensate water system, wherein the refrigeration system includes: the system comprises a compressor 1, a gas-liquid separator 2, a four-way valve 11, a heat exchanger assembly outside the vehicle, a first throttling device, a second throttling device and a first heat exchanger inside the vehicle. An outlet of the compressor 1 is connected to a first end of the four-way valve 11 through a first branch L1, and an inlet of the compressor 1 is connected to a second end of the four-way valve 11 through a second branch L2; the gas-liquid separator 2 is arranged on the second branch; the first heat exchanger in the vehicle is connected to the third end of the four-way valve 11 through a third branch L3, the heat exchanger assembly outside the vehicle is connected to the fourth end of the four-way valve 11 through a fourth branch L4, the first heat exchanger in the vehicle and the heat exchanger assembly outside the vehicle are connected through a fifth branch L5, wherein a first throttling device is arranged on the fifth branch L5 and located at one end close to the first heat exchanger in the vehicle, and a second throttling device is arranged on the fifth branch and located at one end close to the heat exchanger assembly outside the vehicle; the condensed water system collects condensed water generated by the first heat exchanger in the vehicle, and conveys the collected condensed water to the heat exchanger assembly outside the vehicle to cool the heat exchanger assembly outside the vehicle or conveys the condensed water to the outside of the vehicle to be discharged. This vehicle air conditioning system has realized that the refrigeration and the heating system with traditional tractor integrate into one set of system to when refrigerating, the comdenstion water is through spouting to outer heat exchanger subassembly (outer condenser of car) for the cooling rate of outer condenser of car, also realizes the reuse of energy many times.

In some implementations, a condensate system includes: a condensate pipe, a water collecting part, a condensate pump 1320, a water outlet and a spraying part which are arranged on the condensate pipe. Specifically, the condensate pipe comprises a first end of the condensate pipe and a second end of the condensate pipe, the first end of the condensate pipe extends towards the first heat exchanger inside the vehicle, and the second end of the condensate pipe extends towards the heat exchanger assembly outside the vehicle; the water collecting part is connected with the first end of the condensate pipe and is positioned below the first heat exchanger in the vehicle, and the condensate water generated on the first heat exchanger in the vehicle is collected and is selectable: the water collecting part adopts a water collecting tray; a water outlet (not shown) is arranged at the second end of the condensate pipe and communicated with the outside of the automobile, and the collected condensate water is discharged out of the automobile; the spraying part is arranged at the second end of the condensate pipe and faces the external heat exchanger assembly, and can spray and cool the external heat exchanger assembly; the condensate pump 1320 is disposed between the first end of the condensate pipe and the second end of the condensate pipe to provide power for conveying the condensate.

The refrigeration system further includes: an air cavity 7 and an inner fan 9 arranged in the air cavity 7. The air cavity is provided with an air inlet and an air outlet; the inner fan 9 is arranged at one side close to the air inlet; the first heat exchanger 310 in the vehicle is arranged in the air cavity and located on one side close to the air outlet, one end of the first heat exchanger in the vehicle is connected with the third branch L3, and the other end of the first heat exchanger in the vehicle is connected with the fifth branch.

Further optionally, the refrigeration system further comprises: an air purification module 8 disposed in the wind chamber. The air purification module is arranged between the first heat exchanger 310 and the inner fan 9 in the vehicle, and can purify the conveyed air.

The refrigeration system further includes: and an in-vehicle second heat exchanger 320 disposed in the wind chamber. The second heat exchanger 320 in the vehicle is located between the first heat exchanger 310 in the vehicle and the air purification module 8, one end of the second heat exchanger in the vehicle is connected with the second branch L2 through a sixth branch L6, and the other end of the second heat exchanger in the vehicle is connected with the fifth branch L5 through a seventh branch L7. A first three-way valve 510 and a second three-way valve 520 are sequentially arranged on the fifth branch along the direction from the first throttling device to the second throttling device; a third three-way valve 530 is arranged on the sixth branch L6; one end of the seventh branch L7 is connected to one port of the first three-way valve 510, and the other end is connected to the in-vehicle second heat exchanger 320; an eighth branch L8 is connected to one port of the second three-way valve 520 and one port of the third three-way valve 530. Furthermore, the water pan 18 is also adaptively arranged at the lower part of the second heat exchanger in the vehicle, and can collect the condensate water precipitated on the second heat exchanger in the vehicle.

In this embodiment, the first throttling means includes: and is coupled to the first solenoid valve 610 and the first electronic expansion valve 1410 provided on the fifth branch L5.

In some alternatives, an exterior heat exchanger assembly includes: an outer fan 12 and an exterior first heat exchanger 410 located in the air supply direction of the outer fan. Correspondingly, the spraying part is arranged towards the first heat exchanger outside the vehicle so as to cool the heat exchanger assembly outside the vehicle. Optionally, the spraying part is a spray head 16 mounted on the condensate pipe.

Further optionally, the exterior heat exchanger assembly further comprises: an off-board second heat exchanger 420 located between the outside fan and the off-board first heat exchanger. The first heat exchanger 410 outside the vehicle and the second heat exchanger 420 outside the vehicle are connected in parallel through a pipeline and are arranged between the fourth branch L4 and the fifth branch L5, a second electromagnetic valve 620 is arranged on the pipeline on the side, connected with the fourth branch, of the first heat exchanger outside the vehicle, and a third electromagnetic valve 630 is arranged on the pipeline on the side, connected with the fourth branch, of the second heat exchanger outside the vehicle. Based on increase a heat exchanger (the second heat exchanger in the car) and air purification module in HVAC, when realizing the dehumidification, can also increase the interior temperature of car and air-purifying, improve the travelling comfort.

In this embodiment, the second throttling means includes: a first throttling assembly and a second throttling assembly. First throttling component sets up on the pipeline of the first heat exchanger outside the car one side of being connected with the fifth branch road, includes: a fourth electromagnetic valve 640 and a second electronic expansion valve 1420 which are arranged in parallel. The second throttling component is arranged on a pipeline on one side of the second heat exchanger connected with the fifth branch outside the vehicle, and comprises: a fifth solenoid valve 650 and a third electronic expansion valve 1430 provided in parallel.

In some alternatives, the automotive air conditioning system further comprises: waste heat exchange system. When the waste heat exchange system runs, the heat generated by the engine is utilized to heat the refrigerant in front of the inlet of the compressor so as to improve the superheat degree of the refrigerant.

Specifically, this waste heat transfer system includes: the engine waste heat exchange assembly 15, the expansion water tank 17, the plate heat exchanger 10, the third heat exchanger 430 outside the vehicle and the circulating water pump 1320 are connected in sequence through pipelines to form a circulating loop. The engine waste heat exchange assembly absorbs heat generated by the engine in the working process; the expansion water tank can store and supplement secondary refrigerant in the waste heat exchange system and balance the internal and external pressure of the waste heat exchange system; the plate heat exchanger is arranged on the second branch and used for heating the refrigerant in the second branch in front of the inlet of the compressor; the third heat exchanger 430 outside the vehicle dissipates the heat of the heat left after heat exchange by the plate heat exchanger 10 to the outside of the vehicle; the circulating water pump 1310 provides power for the circulation of the coolant in the waste heat exchange system.

Further, the waste heat exchange system further comprises: a coolant heat exchanger 19. One end of the secondary refrigerant heat exchanger 19 is connected between the third heat exchanger outside the vehicle and the expansion tank 17 through a pipeline, and the other end is connected between the circulating water pump 1310 and the third heat exchanger 430 outside the vehicle through a pipeline. To achieve reheating of the air after passing through the second heat exchanger 320 and/or the first heat exchanger 310, the coolant heat exchanger 19 may be disposed in the air chamber of the refrigeration system on the side of the first heat exchanger away from the inner fan 9. The air conditioning system realizes double heating by utilizing the waste heat of the engine and the heat pump system (by utilizing the first heat exchanger and/or the second heat exchanger in the air conditioning system), and improves the temperature rising efficiency in the vehicle.

Example 2

In the present embodiment, there is provided a control method for a vehicle air conditioner, which performs air conditioning using the vehicle air conditioning system of any one of embodiments 1. The control method comprises the following steps: when the automobile air conditioning system operates in a refrigeration mode, condensed water generated by the first heat exchanger and/or the second heat exchanger in the automobile is collected, and the collected condensed water is sprayed to the heat exchanger assembly outside the automobile to cool the heat exchanger assembly outside the automobile.

In some optional modes, the method further comprises the following steps: the refrigerant before the inlet of the compressor is heated by the heat generated by the automobile engine to improve the superheat degree of the refrigerant. In addition, when the automobile air conditioning system operates in the heating mode, the heat generated by the automobile engine is utilized to reheat the outlet air heated by the first heat exchanger and/or the second heat exchanger in the automobile so as to realize double heating of the waste heat of the engine and the first heat exchanger and/or the second heat exchanger in the automobile. It should be noted that heat may be supplied by using only heat generated by the engine of the vehicle, as required. At the moment, the fan sucks air, then the air flows through the secondary refrigerant heat exchanger for heat exchange, and then hot air is blown out.

Further preferably, the control method further includes: the air sent into the vehicle is purified by an air purification module arranged in the refrigeration system.

The method takes an air conditioning system applied to a tractor as an example, and further describes the matching work of a heat pump system (utilizing an in-vehicle heat exchanger in the air conditioning system) and a waste heat exchange system, a condensate water system, an air purification module and the like in the travelling and parking process of the tractor.

The air conditioning system and the waste heat exchange system are integrated into a set of system, so that heating and dehumidification can be realized; waste heat of the engine exchanges heat through a pipeline connected with the gas-liquid separator through the plate heat exchanger, and the superheat degree of a refrigerant is increased; when the system refrigerates, the condensed water is driven by the water pump to cool the heat exchanger outside the vehicle.

As shown in fig. 2, during the operation of the parking space modulation system in the cooling mode, the first and

second solenoid valves

610 and 620 are opened, the a3 end of the first three-way valve 510 communicates with the b3 end, and the a3 end of the second three-way valve 520 communicates with the b3 end.

The high-temperature high-pressure refrigerant discharged from the compressor 1 passes through the four-way valve 11, the second electromagnetic valve 620 enters the first heat exchanger 410 outside the vehicle, the rotation of the fan 12 outside the vehicle accelerates the dissipation of heat carried by the refrigerant, the refrigerant passes through the second electronic expansion valve 1420 after cooling and heat release, and after throttling, pressure reduction and temperature reduction, the refrigerant enters the first heat exchanger 310 (evaporator) inside the vehicle through the second three-way valve 520, the first three-way valve 510 and the first electromagnetic valve 610, and after evaporation and heat absorption, the refrigerant enters the plate heat exchanger 10 through the four-way valve 11, then enters the gas-liquid separator 2, and finally the low-temperature low-pressure.

The inner fan 9 sucks air through an air suction opening (an air inlet of an air cavity) of the HVAC, sucked air is purified through the air purification module 8 and then flows through the second heat exchanger 320 in the vehicle, the first heat exchanger 310 in the vehicle and the secondary refrigerant heat exchanger 19 are blown to the interior of the vehicle, when the air flows through the first heat exchanger 310 in the vehicle, because the temperature of the first heat exchanger 310 is low, water vapor is contained in the air, precipitated condensed water is low in temperature and flows into the water receiving tray 18, the condensed water flows to the spray head 16 through the driving of the condensed water pump 1320, the spray head 16 sprays water to the first heat exchanger 410 outside the vehicle, and the first heat exchanger 410 outside the vehicle is cooled.

As shown in fig. 3, in the working process of the cooling mode of the air-conditioning system during driving, in addition to the cooling process during parking as shown in fig. 2, the excess heat generated by combustion of fuel oil of the engine can be absorbed and utilized to be dissipated to the outside of the engine, at this time, the secondary refrigerant flows through the plate heat exchanger 10, at this time, the low-temperature and low-pressure refrigerant also flows through the plate heat exchanger 10 to absorb the heat of the high-temperature secondary refrigerant, and the superheat degree of the refrigerant is improved. The main process of waste heat utilization is as follows: the engine waste heat exchange assembly 15 absorbs the excess heat after the fuel oil is combusted through the secondary refrigerant, the high-temperature secondary refrigerant flows through the expansion water tank 17 and the plate heat exchanger 10 to exchange heat with the low-temperature and low-pressure refrigerant in the plate heat exchanger 10, then the secondary refrigerant flows through the third heat exchanger 430 outside the vehicle, the outer fan 12 blows air to flow through the second heat exchanger 420 outside the vehicle, the first heat exchanger 410 outside the vehicle and the third heat exchanger 430 outside the vehicle, so that the heat carried by the secondary refrigerant is dissipated, and the secondary refrigerant flows back to the circulating water pump 1310.

As shown in fig. 4, during the operation of the parking air-conditioning system in the rapid cooling mode, the first solenoid valve 610, the second solenoid valve 620 and the third solenoid valve 630 are in an open state, the fourth solenoid valve 640 and the fifth solenoid valve 650 are in a closed state, the a3 end of the first three-way valve 510 communicates with the b3 end, and the a3 end of the second three-way valve 520 communicates with the b3 end.

The high-temperature high-pressure refrigerant discharged from the compressor 1 enters the first heat exchanger 410 outside the vehicle through the four-way valve 11 and the second electromagnetic valve 620 and enters the second heat exchanger 420 outside the vehicle through the third electromagnetic valve 630, at this time, the two heat exchangers outside the vehicle accelerate the dissipation of heat carried by the refrigerant through the rotation of the fan 12 outside the vehicle together, compared with the refrigerant which only flows through one heat exchanger outside the vehicle, the heat dissipation efficiency is improved, the refrigerant passes through the second electronic expansion valve 1420 and the third electronic expansion valve 1430 after cooling and heat release, the refrigerant enters the first heat exchanger 310 inside the vehicle through the second three-way valve 520, the first three-way valve 510 and the first electromagnetic valve 610 after throttling, the efficiency of evaporation and heat absorption is also improved, the refrigerant enters the plate heat exchanger 10 through the four-way valve 11 and then enters the gas-liquid separator 2.

The inner fan 9 sucks air through an air suction opening (an air inlet of an air cavity) of the HVAC, the sucked air is purified through the air purification module 8 and then flows through the second heat exchanger 320 in the automobile, the first heat exchanger 310 in the automobile and the secondary refrigerant heat exchanger 19 are blown to the interior of the automobile, when the air flows through the first heat exchanger 310 in the automobile, the temperature of the first heat exchanger 310 is low, the temperature in the automobile is reduced, the air contains water vapor, the temperature of precipitated condensed water is low, the condensed water flows into the water receiving tray 18, the condensed water flows to the spray head 16 through the driving of the condensed water pump 1320, the spray head 16 sprays water to the first heat exchanger 410 outside the automobile, and the first heat exchanger 410 outside the automobile is cooled. In addition, another nozzle (not shown) may be further provided to cool the second heat exchanger 420 outside the vehicle.

As shown in fig. 5, in the working process of the rapid cooling mode during driving, based on the working process of the rapid cooling mode during parking, the excess heat generated by burning fuel is absorbed and utilized, the coolant flows through the plate heat exchanger 10, at this time, the low-temperature and low-pressure coolant also flows through the plate heat exchanger 10, the heat of the high-temperature coolant is absorbed, the superheat degree of the coolant is improved, and the main process of utilizing the excess heat added in the cooling mode of the air-conditioning system during driving is the same as that of the increased waste heat in the cooling mode of the air-conditioning system.

As shown in fig. 6, during the operation of the parking space air-conditioning system in the heating mode, the first solenoid valve 610 and the third solenoid valve 630 are in the closed state, the second solenoid valve 620, the fourth solenoid valve 640, and the fifth solenoid valve 650 are in the open state, the a3 end of the first three-way valve 510 communicates with the b3 end, and the a3 end of the second three-way valve 520 communicates with the b3 end.

The high-temperature and high-pressure refrigerant discharged by the compressor 1 enters the first heat exchanger 310 inside the vehicle through the four-way valve 11, is condensed to release heat, passes through the first electronic expansion valve 1410, is throttled and depressurized, passes through the first three-way valve 510, the second three-way valve 520 and the fourth electromagnetic valve 640, enters the first heat exchanger 410 outside the vehicle, is evaporated to absorb heat, enters the plate heat exchanger 10 through the second electromagnetic valve 620 and the four-way valve 11, flows out of the plate heat exchanger 10, enters the gas-liquid separator 2, and finally enters the compressor 1 at low temperature and low pressure.

The inner fan 9 sucks air through an air suction opening (an air inlet of an air chamber) of the HVAC, the sucked air is purified by the air purification module 8 and then flows through the second heat exchanger 320 in the vehicle, the first heat exchanger 310 in the vehicle and the secondary refrigerant heat exchanger 19 to be blown into the vehicle, and when the air flows through the first heat exchanger 310 in the vehicle, the air temperature is increased due to the fact that the first heat exchanger 310 is high, and then the temperature in the vehicle is increased.

As shown in fig. 7, during the heating and dehumidifying mode operation of the parking air-conditioning system, the first solenoid valve 610 is in a closed state, the a3 port of the first three-way valve 510 communicates with the c3 port, and the a3 port of the third three-way valve 530 communicates with the c3 port.

The compressor 1 discharges high-temperature and high-pressure refrigerant, the refrigerant passes through the four-way valve 11 and enters the first heat exchanger 310 in the vehicle, the refrigerant is condensed and releases heat, then passes through the first electronic expansion valve 1410, is throttled and depressurized, and then enters the second heat exchanger 320 in the vehicle through the first three-way valve 510; the inner fan 9 sucks air through an air suction opening (an air inlet of an air cavity) of the HVAC, sucked air is purified through the air purification module 8 and then flows through the second heat exchanger 320 in the vehicle, the first heat exchanger 310 in the vehicle and the secondary refrigerant heat exchanger 19 are blown into the vehicle, because the temperature of the refrigerant in the second heat exchanger 320 in the vehicle is low at the moment, the condensed water separated out when the air passes through the second heat exchanger 320 in the vehicle flows into the water receiving tray 18, the air humidity is reduced, the temperature is also low, when the air passes through the first heat exchanger 310 in the vehicle, the temperature of the refrigerant in the first heat exchanger 310 in the vehicle is high, the air temperature is increased, the dehumidification and the heating functions are realized, the condensed water in the water receiving tray 18 is driven by the condensed water pump 1320 and flows out of the vehicle through the water outlet, then the refrigerant passes through the third three-way valve 530 and enters the gas-.

As shown in fig. 8, during the operation of the air conditioning system in the on-defrost mode, the parking space heating mode of fig. 6 is stopped, the third solenoid valve 630 is in the on state, the a3 of the second three-way valve 520 is communicated with the c3 terminal, and the a3 of the third three-way valve 530 is communicated with the b3 terminal.

The compressor 1 discharges high-temperature and high-pressure refrigerant, the refrigerant passes through the four-way valve 11 and the third electromagnetic valve 630 and enters the second heat exchanger 420 outside the vehicle, the outer fan 12 blows air to pass through the second heat exchanger 420 outside the vehicle, the air passes through the first heat exchanger 410 outside the vehicle, frost on the outer surface of the first heat exchanger 410 outside the vehicle is melted, the refrigerant finally passes through the third heat exchanger 430 outside the vehicle, the refrigerant is throttled and decompressed by the third electronic expansion valve 1430, and the refrigerant sequentially passes through the second three-way valve 520 and the third three-way valve 530 and then enters the gas-liquid separator 2, and finally the refrigerant at low temperature.

As shown in fig. 9, during the operation of the heating mode of the coolant heat exchanger during driving, the heat generated during heating comes from the waste heat generated by fuel combustion in the engine, and the main process is as follows: the engine waste heat exchange assembly 15 absorbs the excess heat generated after fuel oil is combusted through the coolant, the high-temperature coolant flows through the expansion water tank 17 and then flows to the coolant heat exchanger 19 in one branch and the plate heat exchanger 10 in the other branch respectively by the driving of the circulating water pump 1310, the coolant flowing through the coolant heat exchanger 19 releases heat inside the HVAC and then flows back to the circulating water pump 1310, the coolant flowing through the plate heat exchanger 10 comes out of the plate heat exchanger 10 and enters the third heat exchanger 430 outside the vehicle, the external fan blows air to pass through the second heat exchanger 420, the first heat exchanger 410 and the third heat exchanger 430, the excess heat carried by the coolant is dissipated outside the vehicle and then flows back to the circulating water pump 1310.

As shown in fig. 10, in the working process of the air-conditioning system in the driving mode, the rapid heating process is the combination of the heating process shown in fig. 6 and fig. 9, the heating speed can be increased by overlapping the heating process of the heat pump system (by using the heat exchanger in the vehicle of the air-conditioning system) and the heating process of the waste heat exchange system (by using the secondary refrigerant absorbing the waste heat of the engine), and meanwhile, the secondary refrigerant flows through the plate heat exchanger 10, and the refrigerant also flows through the plate heat exchanger 10, so that the superheat degree of the refrigerant is increased.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An automotive air conditioning system, characterized in that automotive air conditioning system includes a refrigeration system and a condensate system, wherein the refrigeration system includes: a compressor, a four-way valve, an external heat exchanger component, a first throttling device, a second throttling device and an internal first heat exchanger,

2. The vehicle air conditioning system of claim 1, wherein the condensate water system comprises: a condensate pipe, a water collecting part, a condensate pump, a water outlet and a spraying part which are arranged on the condensate pipe,

3. The vehicle air conditioning system of claim 2, wherein the refrigeration system further comprises: an air cavity and an inner fan arranged in the air cavity,

4. The vehicle air conditioning system of claim 3, wherein the refrigeration system further comprises: an air purification module disposed in the air chamber,

5. The vehicle air conditioning system of claim 4, wherein the refrigeration system further comprises: an in-vehicle second heat exchanger disposed in the air chamber,

6. The vehicle air conditioning system of claim 5, wherein the first throttling device comprises: and the first electromagnetic valve and the first electronic expansion valve are connected with each other and arranged on the fifth branch.

7. The vehicle air conditioning system of claim 6, wherein said exterior heat exchanger assembly comprises: an outer fan and a first heat exchanger outside the vehicle positioned in the air supply direction of the outer fan,

8. The vehicle air conditioning system of claim 7, wherein said exterior heat exchanger assembly further comprises: a second heat exchanger external to the vehicle located between the external fan and the first heat exchanger external to the vehicle,

9. The vehicle air conditioning system of claim 8, wherein the second throttling device comprises: a first throttling assembly and a second throttling assembly,

the second throttling assembly is arranged on a pipeline on one side, connected with the fifth branch, of the second heat exchanger outside the vehicle, and comprises: and the fifth electromagnetic valve and the third electronic expansion valve are arranged in parallel.

10. The vehicle air conditioning system according to any one of claims 5 to 9, further comprising: and the waste heat exchange system is used for heating a refrigerant in front of an inlet of the compressor by utilizing heat generated by the engine during driving of the automobile so as to improve the superheat degree of the refrigerant.

11. The vehicle air conditioning system of claim 10, wherein the waste heat exchange system comprises: an engine waste heat exchange assembly, an expansion water tank, a plate heat exchanger, a third heat exchanger outside the vehicle and a circulating water pump which are connected in sequence through pipelines and form a circulating loop,

12. The vehicle air conditioning system according to claim 11, wherein the waste heat exchanging system is further configured to absorb heat generated by an engine and then cooperate with the first heat exchanger and/or the second heat exchanger in the vehicle to reheat air heated by the first heat exchanger and/or the second heat exchanger in the vehicle, so as to achieve dual heating,

13. The vehicle air conditioning system of claim 12, wherein the coolant heat exchanger is disposed in a plenum of the refrigeration system on a side of the first in-vehicle heat exchanger remote from the internal fan.