JP6937889B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system used in a room where the interior is air conditioned using a plurality of user units.

An air conditioning system equipped with a plurality of user-side units is used for air conditioning inside a large room such as an office. That is, a plurality of user-side units are installed in the room, and each of the plurality of user-side units performs air-conditioning operation to adjust the temperature in the room to a comfortable temperature. The air-conditioned operation is a cooling operation or a heating operation. In such a conventional air conditioning system, for example, each of the plurality of user-side units detects the temperature of its own air conditioning area by a temperature sensor, and air conditioning so that the detected value of the temperature sensor becomes the set temperature. Drive. As a result, in the conventional air conditioning system, the temperature in the room is made uniform.

Further, as a conventional air conditioning system, an air conditioning system has been proposed in which a part of the room is selectively air-conditioned to save energy (see Patent Document 1). Specifically, the interior of the room in which the air conditioning system described in Patent Document 1 is used is divided into a plurality of air conditioning areas having a rectangular shape in a plan view. The air conditioning system described in Patent Document 1 has a plurality of user-side units, and the user-side units are provided behind the ceiling of each of the air-conditioning areas of the room. Further, each of the user-side units in the air conditioning system described in Patent Document 1 is provided with a motion sensor that detects whether or not a person is present. Then, in the air conditioning system described in Patent Document 1, a user-side unit provided in an air conditioning area where a person exists performs air conditioning operation. At this time, the user-side unit provided in the air-conditioning area where there is no person adjacent to the air-conditioning area where people exist performs the ventilation operation and blows air downward from the air outlet on the air-conditioning area side where people exist. Blow out. That is, in the air conditioning system described in Patent Document 1, the air blown out from the user side unit provided in the air conditioning area where no person exists becomes an air curtain, and the user side provided in the air conditioning area where people exist. It prevents the temperature-controlled air blown out from the unit from flowing out into the air-conditioned area where no one is present. According to Patent Document 1, by operating the air conditioning system in this way, the air conditioning area in which a person exists can be selectively air-conditioned, and energy saving can be achieved.

Japanese Unexamined Patent Publication No. 2017-083084

When looking at the boundary between the air-conditioned area where people exist and the air-conditioned area where no people exist, the range of air flowing from the user-side unit provided in the air-conditioned area where no people exist is the range of the outlet. Only below. That is, at the boundary between the air-conditioned area where people exist and the air-conditioned area where no people exist, an air curtain is formed below the air outlet of the user-side unit provided in the air-conditioned area where no people exist. Air curtains are not formed in most areas. Therefore, in the air-conditioning system described in Patent Document 1, the temperature-controlled air blown out from the user-side unit provided in the air-conditioning area where a person exists is a person from a place where an air curtain is not formed. Leaks into an air-conditioned area where there is no. Therefore, the air-conditioning system described in Patent Document 1 has a problem that a part of the area in the room cannot be selectively air-conditioned, and energy saving cannot be sufficiently achieved.

The present invention has been made to solve the above-mentioned problems, and it is possible to selectively air-condition a part of the area in the room more than before, and to save energy more than before. The purpose is to obtain a possible air conditioning system.

The air-conditioning system according to the present invention is an air-conditioning system that air-conditions a room whose inside is divided into a plurality of square air-conditioning areas in a plan view, and is installed behind one ceiling of the air-conditioning area. When a user-side unit that performs an air-conditioning operation for air-conditioning the air-conditioning area is provided and the air-conditioning area in which the user-side unit is installed is set as an installation area, the user-side unit is the said in the installation area. It is installed behind the ceiling and is connected to the main body by a duct to cool or heat the air in the installation area sucked from the suction port formed on the lower surface, and is installed behind the ceiling in the installation area. The air outlet unit is provided with a blowout unit formed on the lower surface portion and blown out from an outlet formed on the outer peripheral side of the installation area in a plan view, and the blowout unit is provided with the blowout unit. A vertical wind direction vane for adjusting the vertical direction of the air blown from the outlet is provided, and the vertical wind direction vane has an inclination with respect to a vertical line and guides the air toward the center of the installation area.

In the air conditioning system according to the present invention, the temperature-controlled air blown out from the outlet of the blowout unit flows toward the center of the installation area of the user-side unit and then flows out from the installation area. Therefore, the temperature-controlled air blown out from the outlet of the blowout unit flows out of the installation area after sufficiently exchanging heat with the air in the installation area. That is, in the air conditioning system according to the present invention, it is possible to suppress the outflow of cold heat or hot heat to the outside of the installation area of the user-side unit as compared with the conventional case. Therefore, the air-conditioning system according to the present invention can selectively air-condition a part of the area in the room more than the conventional one, and can save energy more than the conventional one.

It is a figure for demonstrating the arrangement structure of the air-conditioning system which concerns on Embodiment 1 of this invention. It is a figure which shows the schematic structure of the user side unit of the air conditioning system which concerns on Embodiment 1 of this invention. It is a block diagram for demonstrating the control device of the air conditioning system which concerns on Embodiment 1 of this invention. It is a side view for demonstrating the operation operation of the conventional air conditioning system. It is a side view for demonstrating the operation operation of the air-conditioning system which concerns on Embodiment 1 of this invention, and is the figure which shows the operation at the time of cooling operation of a user-side unit. It is a side view for demonstrating the operation operation of the air conditioning system which concerns on Embodiment 1 of this invention, and is the figure which shows the operation at the time of the heating operation of a user-side unit. It is a flowchart which shows an example of the control method of the air-conditioning system which concerns on Embodiment 1 of this invention. It is a figure for demonstrating an example of the operation operation of the air-conditioning system which concerns on Embodiment 1 of this invention. It is a figure for demonstrating the arrangement structure of the air-conditioning system which concerns on Embodiment 2 of this invention. It is a figure for demonstrating the arrangement structure of the air-conditioning system which concerns on Embodiment 3 of this invention.

Hereinafter, an example of the air conditioning system according to the present invention will be described with reference to drawings and the like. It should be noted that the form of each configuration described in the following embodiments is merely an example. The air conditioning system according to the present invention is not limited to the configurations described in the following embodiments. Further, the combination of configurations is not limited to the combination in the same embodiment, and the configurations described in different embodiments may be combined.

Embodiment 1.
[Installation configuration of air conditioning system 1]
FIG. 1 is a diagram for explaining an arrangement configuration of an air conditioning system according to a first embodiment of the present invention. FIG. 1 is a diagram in which a room 100, which is an air-conditioning target space, is observed from above, and the arrangement positions of the main body 10 and the blowout unit 20 of the user side unit 2 of the air conditioning system 1 are shown. Note that FIG. 1 shows the positions of the suction port 11 of the main body 10 and the outlet 21 of the blowout unit 20.

The air conditioning system 1 according to the first embodiment is used in a room 100 in which the inside is air-conditioned by using a plurality of user-side units such as an office. In the first embodiment, the inside of the room 100 is divided into two square air-conditioning areas 101 in a plan view. Specifically, the interior of the room 100 is divided into a square air-conditioning area 101A and an air-conditioning area 101B in a plan view. The air conditioning area 101A and the air conditioning area 101B are adjacent to each other.

Further, a user-side unit 2 of the air conditioning system 1 is installed behind the ceiling of each of the air conditioning area 101A and the air conditioning area 101B. Then, the user-side unit 2 installed behind the ceiling of the air-conditioning area 101A air-conditions the air-conditioning area 101A when the air-conditioning operation is performed. Further, the user-side unit 2 installed behind the ceiling of the air-conditioning area 101B air-conditions the air-conditioning area 101B when the air-conditioning operation is performed. The air-conditioned operation is a cooling operation or a heating operation. The user-side unit 2 according to the first embodiment can perform both cooling operation and heating operation. That is, in the first embodiment, both the air conditioning area 101A and the air conditioning area 101B are installation areas in which the user-side unit 2 of the air conditioning system 1 according to the first embodiment is installed.

Here, one of the user-side unit 2 installed in the air-conditioning area 101A and the user-side unit 2 installed in the air-conditioning area 101B becomes the first user-side unit. Further, the other of the user-side unit 2 installed in the air-conditioning area 101A and the user-side unit 2 installed in the air-conditioning area 101B becomes the second user-side unit. Of the air-conditioning area 101A and the air-conditioning area 101B, the one in which the first user-side unit is installed is the first installation area. Of the air-conditioning area 101A and the air-conditioning area 101B, the one in which the second user-side unit is installed is the second installation area.

In the following, when the user-side unit 2 installed behind the ceiling of each air-conditioning area 101 is distinguished and shown, the end of the air-conditioning area 101 installed after the code of each configuration of the user-side unit 2 is shown. Uppercase alphabets will be added. For example, in each configuration of the user-side unit 2 installed behind the ceiling of the air conditioning area 101A, the capital letter "A" of the alphabet is added after the code of each configuration. Further, for example, in each configuration of the user-side unit 2 installed behind the ceiling of the air conditioning area 101B, the capital letter "B" of the alphabet is added after the code of each configuration. Further, a plurality of the same configurations may be installed in the same air conditioning area 101. In such a case, when distinguishing each of the same configurations, a lowercase alphabet is added to the end of the code to distinguish them. For example, as will be described later, the user-side unit 2A installed in the air-conditioning area 101A includes four blowing units 20A. When these blowout units 20A are shown separately, they are shown as blowout unit 20Aa, blowout unit 20Ab, blowout unit 20Ac, and blowout unit 20Ad.

Each of the user-side units 2 includes one main body 10 and four blowout units 20. The main body 10 is installed behind the ceiling of the air conditioning area 101. Further, the main body portion 10 is formed with a suction port 11 communicating with the air conditioning area 101 on the lower surface portion. The main body 10 is configured to cool or heat the air in the air conditioning area 101 sucked from the suction port 11. The main body 10 is installed so that, for example, the center 12 of the suction port 11 coincides with the center 102 of the air conditioning area 101 in a plan view. The main body 10 may be installed so that the center 12 of the suction port 11 does not coincide with the center 102 of the air conditioning area 101 in a plan view.

The blowout unit 20 is installed behind the ceiling of the air conditioning area 101. Further, the blowout unit 20 has an outlet 21 formed on the lower surface thereof to communicate with the air conditioning area 101. Further, the blowout unit 20 is connected to the main body 10 by a duct 30. That is, the blowout unit 20 has a configuration in which the temperature-controlled air supplied from the main body 10 is blown out from the blowout port 21 to the air conditioning area 101. Each of the blowout units 20 is installed at a position where the blowout port 21 is near each side of the air conditioning area 101 in a plan view. Further, each of the blowout units 20 is installed so that the longitudinal direction of the blowout port 21 is along each side of the air conditioning area 101 in a plan view.

Specifically, the main body 10A of the user-side unit 2A is installed so that the center 12A of the suction port 11A coincides with the center 102A of the air conditioning area 101A in a plan view. The outlet unit 20Aa of the user-side unit 2A is installed at a position near the side where the outlet 21Aa is on the left side of the paper surface of the air conditioning area 101A in FIG. 1 in which the air conditioning area 101A is viewed in a plan view. The blowout unit 20Ab of the user-side unit 2A is installed at a position near the side of the air-conditioning area 101A on the right side of the paper surface in FIG. 1 in which the air-conditioning area 101A is viewed in a plan view. The blowout unit 20Ac of the user-side unit 2A is installed at a position near the side of the air-conditioning area 101A on the upper side of the paper surface in FIG. 1 in which the air-conditioning area 101A is viewed in a plan view. The blowout unit 20Ad of the user-side unit 2A is installed at a position near the side of the air-conditioning area 101A on the lower side of the paper surface in FIG. 1 in which the air-conditioning area 101A is viewed in a plan view.

Further, the main body 10B of the user-side unit 2B is installed so that the center 12B of the suction port 11B coincides with the center 102B of the air conditioning area 101B in a plan view. The blowout unit 20Ba of the user-side unit 2B is installed at a position near the side where the blowout port 21Ba is on the left side of the paper surface of the air conditioning area 101B in FIG. 1 in which the air conditioning area 101B is viewed in a plan view. The blowout unit 20Bb of the user-side unit 2B is installed at a position near the side of the air conditioning area 101B on the right side of the paper surface in FIG. 1 in which the air conditioning area 101B is viewed in a plan view. The blowout unit 20Bc of the user-side unit 2B is installed at a position near the side of the air-conditioning area 101B on the upper side of the paper surface in FIG. 1 in which the air-conditioning area 101B is viewed in a plan view. The outlet unit 20Bd of the user-side unit 2B is installed at a position near the side where the outlet 21Bd is on the lower side of the paper surface of the air-conditioning area 101B in FIG. 1 in which the air-conditioning area 101B is viewed in a plan view.

In a plan view, one side of the air conditioning area is generally about 7.2 m. Further, if the outlet 21 is installed inside the air conditioning area 101 to be air-conditioned in a plan view, the air-conditioning area 101 to be air-conditioned can be selectively air-conditioned. Therefore, in the plan view, the distance between the center 102 of the air-conditioning area 101 and the center 22 of the air-conditioning outlet 21 is within 3.6 m, which is half the length of one side of the air-conditioning area 101. It is good to be installed like this. Here, the main body 10 is often installed so that the center 12 of the suction port 11 coincides with the center 102 of the air conditioning area 101 in a plan view. Therefore, in each blowout unit 20, the distance between the center 12 of the suction port 11 and the center 22 of the outlet 21 is within 3.6 m, which is half the length of one side of the air conditioning area 101, in a plan view. It is good to be installed in.

[Device configuration of user unit 2]
FIG. 2 is a diagram showing a schematic configuration of a user-side unit of the air conditioning system according to the first embodiment of the present invention. FIG. 2 is a vertical cross-sectional view of the room 100 passing through the main body 10, the blowout unit 20Aa, and the blowout unit 20Ab of the user side unit 2A. Since the user-side unit 2A and the user-side unit 2B have the same configuration, the user-side unit 2 will be described below using the user-side unit 2A. Further, since the blowout unit 20Ac and the blowout unit 20Ad have the same configuration as the blowout unit 20Aa and the blowout unit 20Ab, the illustration of the blowout unit 20Ac and the blowout unit 20Ad is omitted.

As described above, the user-side unit 2A includes a main body 10A installed in the ceiling 104A of the air conditioning area 101A. A blower 14A and a heat exchanger 13A are housed inside the main body 10A. The blower 14A sucks the air in the air conditioning area 101A from the suction port 11A of the main body 10A, and sends the sucked air to the blowing unit 20A. The heat exchanger 13A cools or heats the air in the air conditioning area 101A sucked into the main body 10A by the blower 14A, and controls the temperature of the sucked air. Specifically, when the user unit 2A performs the cooling operation, a refrigerant having a temperature lower than that of the air in the air conditioning area 101A flows through the heat exchanger 13A, and the air conditioning area sucked into the main body 10A by the refrigerant. Cool the air of 101A. Further, when the user unit 2A performs the heating operation, a refrigerant having a temperature higher than that of the air in the air conditioning area 101A flows through the heat exchanger 13A, and the air conditioning area 101A sucked into the main body 10A by the refrigerant. Heat the air.

Further, as described above, the user-side unit 2A includes a blowout unit 20Aa, a blowout unit 20Ab, a blowout unit 20Ac, and a blowout unit 20Ad installed in the ceiling 104A of the air conditioning area 101A. Each of the blowout unit 20Aa, the blowout unit 20Ab, the blowout unit 20Ac, and the blowout unit 20Ad is connected to the main body 10 by a duct 30A. Note that FIG. 2 shows a duct 30Aa connecting the main body 10 and the blowing unit 20Aa, and a duct 30Ab connecting the main body 10 and the blowing unit 20Ab. That is, the air sucked into the main body 10A and whose temperature is controlled flows into the duct 30A connected to each blowing unit 20A and is diverted in four directions. Then, the air flowing into each duct 30A is blown out from the outlet 21A of each outlet unit 20A to the air conditioning area 101A.

Each of the blowout unit 20Aa, the blowout unit 20Ab, the blowout unit 20Ac, and the blowout unit 20Ad includes a vertical wind direction vane 23A that adjusts the vertical direction of the air blown from the blowout port 21A. Note that FIG. 2 shows a vertical wind direction vane 23Aa of the blowing unit 20Aa and a vertical wind direction vane 23Ab of the blowing unit 20Ab. Each of the vertical wind direction vanes 23A provided in each blowout unit 20A has an inclination with respect to the vertical line during the air conditioning operation, and the air blown out from the blowout port 21A is directed toward the center 102A of the air conditioning area 101A. Guide the air.

Here, each vertical wind direction vane 23A may be a fixed type that does not operate during the operation of the user side unit 2A, or may be a movable type that can change the inclination by electric power during the operation of the user side unit 2A. Each of the vertical wind direction vanes 23A according to the first embodiment is movable so that the inclination can be changed by electric power during the operation of the user side unit 2A, and can be changed to an arbitrary inclination. Therefore, each of the vertical wind direction vanes 23A according to the first embodiment has a configuration in which the inclination can be changed between the cooling operation and the heating operation. Therefore, the user-side unit 2A according to the first embodiment includes a feeder line 3A that supplies electric power to the vertical wind direction vanes 23A. The feeder line 3A is connected to a drive source (not shown) of the vertical wind direction vane 23A. The drive source is, for example, a motor. Note that FIG. 2 shows a feeder line 3Aa for supplying electric power to the vertical wind direction vane 23Aa and a feeder line 3Ab for supplying electric power to the vertical wind direction vane 23Ab.

Specifically, each feeder line 3A is connected to the electric box 6A. The electric box 6A is connected to a power source (not shown) laid in a building having a room 100. As a result, electric power is supplied to each vertical wind direction vane 23A from a power source (not shown). Here, in the first embodiment, at least a part of the feeder line 3A is arranged in contact with the duct 30A. In other words, at least a part of the feeder line 3A is arranged along the duct 30A. By arranging the feeder line 3A in this way, the wiring state becomes clean.

Further, in the utilization side unit 2A according to the first embodiment, each of the blowout unit 20Aa, the blowout unit 20Ab, the blowout unit 20Ac, and the blowout unit 20Ad adjusts the lateral direction of the air blown out from the blowout port 21A. It is equipped with a left and right wind direction vane 24A. Note that FIG. 2 shows the left and right wind direction vanes 24Aa of the blowing unit 20Aa and the left and right wind direction vanes 24Ab of the blowing unit 20Ab.

Here, each of the left and right wind direction vanes 24A may be a fixed type that does not operate during the operation of the user side unit 2A, or may be a movable type that can change the inclination by electric power during the operation of the user side unit 2A. Each of the left and right wind direction vanes 24A according to the first embodiment is movable so that the inclination can be changed by electric power during the operation of the user side unit 2A, and can be changed to an arbitrary inclination. Therefore, the drive source (not shown) of each of the left and right wind direction vanes 24A according to the first embodiment is connected to the feeder line 3A. The drive source is, for example, a motor.

Further, the user-side unit 2A according to the first embodiment includes a motion sensor 4A that detects whether or not a person is present in the air-conditioning area 101A. The motion sensor is, for example, a sensor using an infrared sensor. In the first embodiment, the motion sensor 4A is a sensor installed in the user unit 2A, but the present invention is not limited to this. For example, the motion sensor 4A may be a sensor that detects the presence or absence of keyboard operation of a personal computer (not shown) installed in the air conditioning area 101A and detects whether or not a person is present in the air conditioning area 101A. good. That is, the motion sensor 4A may be provided by the air conditioning system 1.

Further, the user-side unit 2A according to the first embodiment includes a temperature sensor 5A that detects the temperature of the air in the air conditioning area 101A. In the first embodiment, the temperature sensor 5A is installed in the main body 10 on the downstream side of the suction port 11A. That is, in the first embodiment, the temperature of the air in the air conditioning area 101A sucked into the main body 10 is detected by the temperature sensor 5A.

[Control device of air conditioning system 1]
FIG. 3 is a block diagram for explaining the control device of the air conditioning system according to the first embodiment of the present invention. FIG. 3 is a block diagram of the control device 50A provided in the user-side unit 2A among the control devices 50.
In the first embodiment, the control device 50 of the air conditioning system 1 is divided into a control device 50A provided in the user side unit 2A and a control device 50B provided in the user side unit 2B. The control of each configuration of the control device 50A and the control of each configuration of the control device 50B are the same. Therefore, in the following, the control device 50 will be described using the control device 50A. Of course, the control device 50A and the control device 50B may be integrally configured. In this case, one control device 50 controls each configuration of the user-side unit 2A and each configuration of the user-side unit 2B.

The control device 50A is composed of dedicated hardware or a CPU (Central Processing Unit) that executes a program stored in a memory. The CPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

When the control device 50A is dedicated hardware, the control device 50A may be, for example, a single circuit, a composite circuit, an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a combination thereof. Applicable. Each of the functional units realized by the control device 50A may be realized by individual hardware, or each functional unit may be realized by one hardware.

When the control device 50A is a CPU, each function executed by the control device 50A is realized by software, firmware, or a combination of software and firmware. Software and firmware are written as programs and stored in memory. The CPU realizes each function of the control device 50A by reading and executing the program stored in the memory. Here, the memory is a non-volatile or volatile semiconductor memory such as, for example, RAM, ROM, flash memory, EPROM, or EEPROM.

A part of the function of the control device 50A may be realized by dedicated hardware, and a part may be realized by software or firmware.

The control device 50A according to the first embodiment includes an input unit 51, a calculation unit 52, a control unit 53, and a storage unit 54 as functional units. The input unit 51 is a functional unit in which the detection values of the temperature sensor 5A and the motion sensor 4A are input. From a remote controller or the like (not shown), the input unit 51 can start and stop the cooling operation, start and stop the heating operation, set the temperature of the user unit 2A during the cooling operation, and set the user unit 2A during the heating operation. The temperature etc. are also input. Based on the information input to the input unit 51 and the information stored in the storage unit 54, the calculation unit 52 uses the inclination of the vertical wind direction vane 23A, the inclination of the left and right wind direction vanes 24A, the rotation speed of the blower 14A, and the like. This is a functional unit that calculates control parameters during air conditioning operation of the side unit 2A. The control unit 53 is a functional unit that controls the inclination of the vertical wind direction vane 23A, the inclination of the left and right wind direction vanes 24A, the rotation speed of the blower 14A, and the like based on the control parameters and the like calculated by the calculation unit 52. The storage unit 54 is a functional unit that stores information input to the input unit 51, set values used by the control unit 53, control target values, and the like.

[Operating operation of air conditioning system 1]
Subsequently, the operation operation of the air conditioning system 1 according to the first embodiment will be described. In the following, the operation operation of the conventional air conditioning system 201 will be described first so that the effect of the air conditioning system 1 can be easily understood. Then, after that, the operation operation of the air conditioning system 1 according to the first embodiment will be described.

FIG. 4 is a side view for explaining the operating operation of the conventional air conditioning system. FIG. 4 is a side view showing a state in which the conventional air conditioning system 201 is installed in the room 100. In the conventional air conditioning system 201, a user-side unit 202 is installed behind the ceiling of each of the air conditioning area 101A and the air conditioning area 101B. The user-side unit 202 is a four-way ceiling cassette type user-side unit. Specifically, the user-side unit 202 includes a substantially rectangular parallelepiped housing 210 in which a suction port 211 and four outlets 221 are formed on the lower surface portion. The suction port 211 is formed in the central portion of the lower surface portion of the housing 210. The four outlets 221 are formed on the lower surface of the housing 210 so as to surround the suction ports 211 on all sides. Further, inside the housing 210, there is a blower (not shown) for sucking air from the suction port 211 and blowing it out from the outlet 221 and heat exchange (not shown) for cooling or heating the air sucked into the housing 210. The vessel is stored.

The utilization side unit 202 configured in this way is arranged at a substantially central portion of the air conditioning area 101 in a plan view. Then, as the blower (not shown) rotates in the housing 210, the air in the air conditioning area 101 is sucked into the housing 210 from the suction port 211. The temperature of the sucked air is controlled by a heat exchanger (not shown), and the air is blown out from the outlet 221.

At this time, in the conventional utilization side unit 202, the temperature-controlled air is blown out toward the outer peripheral side of the housing 210 as shown in FIG. Therefore, the temperature-controlled air blown from the user-side unit 202 installed in the air-conditioning area 101A to the air-conditioning area 101A reaches the air-conditioning area 101B before sufficiently exchanging heat with the air in the air-conditioning area 101A. It will flow out. Therefore, when the utilization side unit 202 installed in the air conditioning area 101A is in the cooling operation, the cooling heat to be supplied to the air in the air conditioning area 101A before sufficiently supplying the cooling heat to the air in the air conditioning area 101A. Outflows to the air conditioning area 101B. Further, when the user-side unit 202 installed in the air-conditioning area 101A is in the heating operation, the heat to be supplied to the air in the air-conditioning area 101A before sufficiently supplying the heat to the air in the air-conditioning area 101A is generated. It will flow out to the air conditioning area 101B.

Therefore, in the conventional air conditioning system 201, the air conditioning area 101A cannot be selectively air conditioned, and energy saving cannot be sufficiently achieved. The same applies to the case where the user-side unit 202 installed in the air conditioning area 101B performs the cooling operation and the heating operation.

FIG. 5 is a side view for explaining the operation operation of the air conditioning system according to the first embodiment of the present invention, and is a diagram showing the operation when the user side unit is in the cooling operation. Further, FIG. 6 is a side view for explaining the operation operation of the air conditioning system according to the first embodiment of the present invention, and is a diagram showing the operation when the user-side unit is in the heating operation.

In the air conditioning system 1 according to the first embodiment, each of the blowout units 20 of the user side unit 2 is connected to the main body 10 by a duct 30. Therefore, each of the blowout units 20 can be installed at a position where the blowout port 21 is near each side of the air conditioning area 101. That is, in a plan view, each outlet 21 can be arranged on the outer peripheral side as much as possible in the air conditioning area 101. Further, in the air conditioning system 1 according to the first embodiment, the direction of the air blown from each of the blowing units 20 during the air conditioning operation is the center of the air conditioning area 101 with respect to the vertical line by the vertical wind direction vanes 23. Tilt in 102 directions.

Therefore, in the air-conditioning area 101, the temperature-controlled air blown out from each of the outlets 21A to the air-conditioning area 101 flows from the outer peripheral side toward the center in the air-conditioning area 101A. Then, after that, it flows to the outer peripheral side in the air conditioning area 101A again, and flows out from the air conditioning area 101A to the air conditioning area 101B. Therefore, the temperature-controlled air blown out from each of the outlets 21A to the air-conditioning area 101A has a long staying time in the air-conditioning area 101A, and after sufficiently exchanging heat with the air in the air-conditioning area 101A, the air-conditioning is performed. It flows out to area 101B.

Therefore, when the user-side unit 2A installed in the air-conditioning area 101A is in the cooling operation, it is possible to sufficiently supply cold heat to the air in the air-conditioning area 101A. Therefore, the air blown out from each of the outlets 21A to the air-conditioning area 101A becomes substantially the same temperature as the air in the air-conditioning area 101A in a state where there is almost no cold heat when the air flows out to the air-conditioning area 101B. Further, when the user-side unit 2A installed in the air-conditioning area 101A is in the heating operation, sufficient heat can be supplied to the air in the air-conditioning area 101A. Therefore, the air blown out from each of the outlets 21A to the air-conditioning area 101A becomes substantially the same temperature as the air in the air-conditioning area 101A in a state where there is almost no heat when the air flows out to the air-conditioning area 101B.

Therefore, the air-conditioning system 1 according to the first embodiment can selectively air-condition the air-conditioning area 101A, and can save energy as compared with the conventional case. The same applies to the case where the air conditioning area 101B is selectively air conditioned.

Further, the user-side unit 2 of the air conditioning system 1 according to the first embodiment has different inclinations of the vertical wind direction vanes 23 between the cooling operation and the heating operation. In other words, the user-side unit 2 of the air conditioning system 1 according to the first embodiment has different directions of the air blown out from the air outlet 21 during the cooling operation and the heating operation.

Specifically, the inclination of the air blown out from the air outlet 21 during the cooling operation with respect to the vertical line is larger than the inclination of the air blown out from the air outlet 21 during the heating operation with respect to the vertical line. That is, during the cooling operation, the air blown out from the air outlet 21 is supplied above the air conditioning area 101 than during the heating operation. Since the air blown out from the air outlet 21 during the cooling operation is colder than the air in the air conditioning area 101, it tends to flow downward in the air conditioning area 101. Therefore, during the cooling operation, by supplying the air blown out from the air outlet 21 above the air conditioning area 101, the staying time of the air blown out from the air outlet 21 in the air conditioning area 101 can be further extended. Therefore, during the cooling operation, it is possible to further suppress the outflow of cold heat to the adjacent air conditioning area 101, and it is possible to improve the energy saving effect.

Further, during the heating operation, the air blown out from the air outlet 21 is supplied below the air conditioning area 101 than during the cooling operation. Since the air blown out from the air outlet 21 during the heating operation is warmer than the air in the air conditioning area 101, it tends to flow upward in the air conditioning area 101. Therefore, during the heating operation, by supplying the air blown out from the outlet 21 below the air conditioning area 101, the staying time of the air blown out from the outlet 21 in the air conditioning area 101 can be further extended. Therefore, during the heating operation, it is possible to further suppress the outflow of heat to the adjacent air conditioning area 101, and it is possible to improve the energy saving effect.

Specifically, in the user-side unit 2 according to the first embodiment, the inclination of the air blown out from the air outlet 21 during the cooling operation with respect to the vertical line is as shown in FIG. In the following, the inclination of the air blown out from the air outlet 21 during the cooling operation will be described using the user-side unit 2A. During the cooling operation of the user unit 2A, the air blown out from each outlet 21A passes through the center 102A of the air conditioning area 101A before reaching the floor surface 105 of the air conditioning area 101A in a side view. To reach. By making the inclination of the air blown out from each outlet 21A with respect to the vertical line in this way during the cooling operation, the staying time of the air blown out from each outlet 21A in the air conditioning area 101A can be made longer. Therefore, it is possible to further suppress the outflow of cold heat from the air conditioning area 101A to the air conditioning area 101B during the cooling operation of the user unit 2A, and it is possible to improve the energy saving effect.

Further, in the first embodiment, during the cooling operation of the user side unit 2A, the vertical wind direction vanes 23A of each blowing unit 20A have substantially the same inclination. Therefore, the air blown out from each outlet 21A collides with each other in the vicinity of the vertical line 103 passing through the center 102A of the air conditioning area 101A, and can stay in the vicinity of the center 102A of the air conditioning area 101A for a longer time in a plan view. Further, it is possible to prevent the air blown out from each outlet 21A from directly colliding with the floor surface 105 of the air conditioning area 101A. Therefore, when the air blown out from each outlet 21A collides with the floor surface 105, the flow direction changes and it is possible to prevent the air from flowing out to the air conditioning area 101B. Therefore, by setting the vertical wind direction vanes 23A of each blowing unit 20A to have substantially the same inclination during the cooling operation of the user unit 2A, it is possible to further suppress the outflow of cold heat from the air conditioning area 101A to the air conditioning area 101B. That is, during the cooling operation of the user unit 2A, the energy saving effect can be further improved by setting the vertical wind direction vanes 23A of each blowing unit 20A to have substantially the same inclination.

Specifically, in the user-side unit 2 according to the first embodiment, the inclination of the air blown out from the air outlet 21 during the heating operation with respect to the vertical line is as shown in FIG. In the following, the inclination of the air blown out from the air outlet 21 during the heating operation will be described using the user-side unit 2A. During the heating operation of the user unit 2A, the air blown out from each outlet 21A reaches the floor surface 105 of the air conditioning area 101A before reaching the vertical line 103 passing through the center 102A of the air conditioning area 101A in the side view. To reach. By making the inclination of the air blown out from each outlet 21A with respect to the vertical line in this way during the heating operation, the warm air blown out from each outlet 21A can be supplied to the lower part of the air conditioning area 101A. That is, the warm air blown out from each outlet 21A can be supplied to the position of a person existing in the air conditioning area 101A.

By making the inclination of the air blown out from each outlet 21A with respect to the vertical line in this way during the heating operation, the air blown out from each outlet 21A directly collides with the floor surface 105 of the air conditioning area 101A. .. However, even if the flow direction changes when the air blown out from each outlet 21A collides with the floor surface 105, most of the air flows toward the center 102A of the air conditioning area 101A in a plan view. Therefore, the heat flowing out from the air conditioning area 101A to the air conditioning area 101B hardly increases.

As described above, by making the inclination of the vertical wind direction vanes 23 different between the cooling operation and the heating operation, it is possible to keep the environment of each air conditioning area 101 comfortable during both the cooling operation and the heating operation. can.

Further, in the air conditioning system 1 according to the first embodiment, since each user-side unit 2 can selectively air-condition each air-conditioning area 101, the set temperature of the user-side unit 2A and the set temperature of the user-side unit 2B It is also possible to make the difference between and 2 ° C or more. For example, it is assumed that hot people gather in the air conditioning area 101A and the set temperature of the user unit 2A is set to 24 ° C. Further, it is assumed that cold people gather in the air conditioning area 101B and the set temperature of the user unit 2B is set to 26 ° C. In the air conditioning system 1 according to the first embodiment, since each user-side unit 2 can selectively air-condition each air-conditioning area 101, the air-conditioning area 101 in both the air-conditioning area 101A and the air-conditioning area 101B. The temperature of can be set as the set temperature. That is, the air conditioning system 1 according to the first embodiment can provide a comfortable space for both a hot person and a cold person.

Further, the air conditioning system 1 according to the first embodiment includes a motion sensor that detects whether or not a person is present in the air conditioning area 101. Therefore, further energy saving can be achieved by changing the operation operation of the user side unit 2 according to the presence or absence of a person in the air conditioning area 101. The following is an example of a control flow that changes the operation operation of the user unit 2 according to the presence or absence of a person in the air conditioning area 101. In the following, the method of changing the driving operation according to the presence or absence of a person in the air conditioning area 101 will be described using the user side unit 2A. The method for changing the operation operation of the user unit 2B is the same.

FIG. 7 is a flowchart showing an example of a control method of the air conditioning system according to the first embodiment of the present invention.
When a command for air-conditioning operation is input to the input unit 51 of the control device 50A from a remote controller or the like (not shown), the control unit 53 of the control device 50A starts the air-conditioning operation of the user-side unit 2A in step S1. That is, the control unit 53 starts the cooling operation or the heating operation of the user-side unit 2A.

Step S2 is a step of determining whether or not a person exists in the air conditioning area 101A. If the motion sensor 4A does not detect the presence of a person in step S2, that is, if there is no person in the air conditioning area 101A, the process proceeds to step S3.

When there is no person in the air-conditioning area 101A, the control unit 53 switches the operating state of the user-side unit 2A from the air-conditioning operation to the air-conditioning operation in step S3, and performs the air-conditioning operation of the user-side unit 2A. As will be described later, steps S2 to S7 shown in FIG. 7 are repeated until a stop command for air-conditioning operation of the user-side unit 2A is input. Therefore, at the time of step S2, the operating state of the user-side unit 2A may be the ventilation operation. In this case, in step S3, the control unit 53 continues the blowing operation of the user-side unit 2A.

Here, the blower operation is an operation in which the air is not cooled and heated by the heat exchanger 13A, and the air in the air conditioning area 101A sucked from the suction port 11A is blown out from each outlet 21A at the same temperature. be. By setting the user-side unit 2A to blow air, the temperature of the air-conditioning area 101A where no one is present is not controlled, so that the power consumption of the air-conditioning system 1 can be reduced. When the user-side unit 2A is performing the ventilation operation and the user-side unit 2B is performing the cooling operation, the temperature in the air-conditioning area 101A is higher than the temperature in the air-conditioning area 101B. Further, when the user side unit 2A is performing the ventilation operation and the user side unit 2B is performing the heating operation, the temperature in the air conditioning area 101A is lower than the temperature in the air conditioning area 101B. However, as described above, since the user-side unit 2B can selectively air-condition the inside of the air-conditioning area 101B, the comfort of the air-conditioning area 101B can be maintained even if the user-side unit 2A performs the air-conditioning operation.

When there is no person in the air conditioning area 101A, the control unit 53 sets the rotation speed of the blower 14A lower than the set value of the blower 14A during the air conditioning operation in step S4 after step S3. That is, the rotation speed of the blower 14A when the user side unit 2A performs the blower operation is lower than the rotation speed of the blower 14A when the user side unit 2A performs the air conditioning operation. By lowering the rotation speed of the blower 14A when there is no person in the air conditioning area 101A, the blowing power of the blower 14A can be reduced and the power consumption of the air conditioning system 1 can be reduced.

Step S7 after step S4 is a step of determining whether or not there is a stop command for air conditioning operation of the user unit 2A from a remote controller or the like (not shown). In step S7, if the stop command for the air conditioning operation of the user unit 2A is not input to the input unit 51 of the control device 50A, the process returns to step S2. Further, in step S7, when the stop command for the air-conditioning operation of the user-side unit 2A is input to the input unit 51 of the control device 50A, the control unit 53 stops the air-conditioning operation of the user-side unit 2A.

On the other hand, if the motion sensor 4A detects the presence of a person in step S2, that is, if a person is present in the air conditioning area 101A, the process proceeds to step S5. When a person is present in the air conditioning area 101A, the control unit 53 continues the air conditioning operation in step S5. Steps S2 to S7 shown in FIG. 7 are repeated until a stop command for air-conditioning operation of the user-side unit 2A is input. Therefore, at the time of step S2, the operating state of the user-side unit 2A may be the ventilation operation. In this case, in step S5, the control unit 53 switches the operating state of the user-side unit 2A from the ventilation operation to the air-conditioning operation.

In step S6 after step S5, the control unit 53 sets the rotation speed of the blower 14A as the set value at the time of air conditioning operation, and proceeds to step S7. In step S7, if the stop command for the air conditioning operation of the user unit 2A is not input to the input unit 51 of the control device 50A, the process returns to step S2. Further, in step S7, when the stop command for the air-conditioning operation of the user-side unit 2A is input to the input unit 51 of the control device 50A, the control unit 53 stops the air-conditioning operation of the user-side unit 2A.

Further, in the air conditioning system 1 according to the first embodiment, each blowing unit 20 of the user-side unit 2 is provided with a left-right wind direction vane 24 for adjusting the lateral direction of the air blown from the blowing port 21. There is. Therefore, by adjusting the air blowing directions from the two blowing units 20 facing each other across the center 102 of the air conditioning area 101 in a plan view as follows, a draft feeling is given to the person in the air conditioning area 101. Can be suppressed. Here, the draft feeling is a feeling that the wind is hitting, and is a feeling that makes a person uncomfortable. In the following, an operation method capable of suppressing a draft feeling by using the user side unit 2A will be described. Further, in the following, an operation method capable of suppressing a draft feeling will be described with the blowout unit 20Aa as the first blowout unit and the blowout unit 20Ab as the second blowout unit.

FIG. 8 is a diagram for explaining an example of the operating operation of the air conditioning system according to the first embodiment of the present invention. FIG. 8 is a diagram showing the arrangement positions of the main body 10 and the blowout unit 20 of the user side unit 2 of the air conditioning system 1 by observing the room 100, which is the air conditioning target space, from above. Note that FIG. 8 shows the positions of the suction port 11 of the main body 10 and the outlet 21 of the blowout unit 20.
Here, in explaining the operation method capable of suppressing the draft feeling, the first virtual straight line 111, the second virtual straight line 112, the first direction 121, and the second direction 122 are defined as follows. In a plan view, the virtual straight line connecting the center 22Aa of the outlet 21Aa of the blowout unit 20Aa and the center 102A of the air conditioning area 101A is defined as the first virtual straight line 111. In a plan view, the virtual straight line connecting the center 22Ab of the outlet 21Ab of the blowout unit 20Ab and the center 102A of the air conditioning area 101A is defined as the second virtual straight line 112. In a plan view, one of the directions perpendicular to the first virtual straight line 111 is defined as the first direction 121. In a plan view, the other of the directions perpendicular to the first virtual straight line 111 is defined as the second direction 122.

When defined in this way, the left and right wind direction vanes 24Aa of the blowout unit 20Aa have an inclination such that air is blown out from the outlet 21Aa so as to be inclined in the first direction 121 with respect to the first virtual straight line 111. Further, the left and right wind direction vanes 24Ab of the blowout unit 20Ab have an inclination such that air is blown out from the outlet 21Ab so as to be inclined in the second direction 122 with respect to the second virtual straight line 112.

When air-conditioning the air-conditioning area 101A, it is assumed that the directions of the air blown out from the outlet 21A of each air-conditioning unit 20A face the center 102A of the air-conditioning area 101A in a plan view. In this case, if the total amount of air blown from each outlet 21A is large, a region having a relatively high wind speed is generated near the center of the air conditioning area 101A. Therefore, there is a possibility of giving a draft feeling to a person existing near the center of the air conditioning area 101A. On the other hand, by setting the left and right wind direction vanes 24Aa of the blowing unit 20Aa and the left and right wind direction vanes 24Ab of the blowing unit 20Ab as shown in FIG. 8, the amount of air blown near the center of the air conditioning area 101A is reduced. Therefore, the wind speed near the center of the air conditioning area 101A can be suppressed, and it is possible to suppress giving a draft feeling to a person existing near the center of the air conditioning area 101A.

The configuration of the air conditioning system 1 described above is merely an example. For example, at least one of the user-side units 2 may include a plurality of main body units 10. Further, for example, at least one of the blowout units 20 may be arranged at a corner of the air conditioning area 101 in a plan view.

Further, for example, the number of blowout units 20 included in the user side unit 2 is not limited to four. For example, the user side unit 2 may include five or more blowout units 20, such as arranging two or more blowout units in the vicinity of at least one side of the air conditioning area 101 in a plan view. For example, even if the number of blowout units 20 is 3 or less, if the amount of blown air from the blowout unit 20 is a desired amount, the number of blowout units 20 may be 3 or less. That is, the user-side unit 2 may include at least one blow-out unit 20.

Further, for example, the number of user-side units 2 included in the air-conditioning system 1 is not limited to the same number as the air-conditioning area 101. The user-side unit 2 according to the first embodiment may be arranged in at least one air-conditioning area 101. At that time, in the case of air-conditioning the entire interior of the room 100, a user-side unit different from the user-side unit 2 according to the first embodiment may be arranged in the other air-conditioning area 101. In the air-conditioning area 101 in which the user-side unit 2 according to the first embodiment is arranged, the user-side unit 2 can selectively air-condition the air-conditioning area 101. Therefore, if the air conditioning system 1 is provided with at least one user-side unit 2, energy saving can be achieved as compared with the conventional case.

As described above, the air conditioning system 1 according to the first embodiment is an air conditioning system that air-conditions the rooms 100 that are partitioned into a plurality of air conditioning areas 101 having a rectangular shape in a plan view. The air-conditioning system 1 is installed in one attic 104 of the air-conditioning area 101, and includes a user-side unit 2 that performs an air-conditioning operation for air-conditioning the air-conditioning area 101. When the air conditioning area 101 in which the user side unit 2 is installed is set as the installation area, the user side unit 2 is installed in the ceiling 104 of the installation area, and the installation is sucked from the suction port 11 formed on the lower surface portion. The main body 10 that cools or heats the air in the area is connected to the main body 10 by a duct 30 and installed in the ceiling 104 of the installation area, and the air supplied from the main body 10 is blown formed on the lower surface. It includes a blowout unit 20 that blows out from the outlet 21. The blowout unit 20 includes a vertical wind direction vane 23 that adjusts the vertical direction of the air blown out from the blowout port 21. The vertical wind direction vane 23 has an inclination with respect to the vertical line and guides the air toward the center of the installation area.

In the air conditioning system 1 according to the first embodiment, the temperature-controlled air blown out from the outlet 21 of the blowout unit 20 flows toward the center of the installation area and then flows out from the installation area. Become. Therefore, the temperature-controlled air blown out from the outlet 21 of the blowout unit 20 flows out of the installation area after sufficiently exchanging heat with the air in the installation area. That is, in the air conditioning system 1 according to the first embodiment, it is possible to suppress the outflow of cold heat or hot heat to the outside of the installation area as compared with the conventional case. Therefore, the air conditioning system 1 according to the first embodiment can selectively air-condition a part of the area in the room 100 more than the conventional one, and can save energy more than the conventional one.

Embodiment 2.
In the first embodiment, the air conditioning system 1 is used in the room 100 divided into two air conditioning areas 101 in a plan view. However, the room in which the air conditioning system 1 can be used is not limited to the room 100 shown in the first embodiment. As shown in the second embodiment, the air conditioning system 1 is installed in a room larger than the room shown in the first embodiment, that is, in a room partitioned into more than two air conditioning areas 101 in a plan view. Can be adopted. In the second embodiment, items not particularly described will be the same as those in the first embodiment, and the same functions and configurations as those in the first embodiment will be described using the same reference numerals.

FIG. 9 is a diagram for explaining the arrangement configuration of the air conditioning system according to the second embodiment of the present invention. FIG. 9 is a diagram showing the arrangement positions of the main body 10 and the blowout unit 20 of the user side unit 2 of the air conditioning system 1 by observing the room 100, which is the air conditioning target space, from above. Note that FIG. 9 shows the positions of the suction port 11 of the main body 10 and the outlet 21 of the blowout unit 20.

The room 100 according to the second embodiment is a room having a larger scale than the room 100 shown in the first embodiment, and is, for example, a medium-sized or larger office. The interior of the room 100 according to the second embodiment is divided into six square air-conditioning areas 101 in a plan view. Specifically, the inside of the room 100 is divided into a square air-conditioning area 101A, an air-conditioning area 101B, an air-conditioning area 101C, an air-conditioning area 101D, an air-conditioning area 101E, and an air-conditioning area 101F in a plan view. ing. A user-side unit 2 is installed behind each ceiling of the air-conditioning area 101. Further, the main body 10 of each user-side unit 2 is installed so that the center 12 of the suction port 11 coincides with the center 102 of the air conditioning area 101 in a plan view. The installation position of the blowout unit 20 of each user side unit 2 will be described later.

Specifically, in the room 100, three desk groups 131, which are mainly a group of seats for persons in charge of the workplace, are installed. Specifically, the desk group 131A, the desk group 131B, and the desk group 131C are installed in the room 100. These desk groups 131 are installed in the interior zone of the room 100. The interior zone is a range that is not easily affected by sunlight, outside air, or the like in the room 100, such as on the aisle side. Further, on the side of each desk group 131, a desk 132 used by an administrator, a superior, or the like is installed. Specifically, a desk 132D is installed on the side of the desk group 131A. A desk 132E is installed on the side of the desk group 131B. A desk 132F is installed on the side of the desk group 131C. These desks 132 are installed in the perimeter zone of room 100. The perimeter zone is a range that is easily affected by sunlight, outside air, etc. in the room 100, for example, on the window side. Further, a passage 133 is provided on the side of the desk group 131 opposite to the desk 132 side. Further, at one end of the passage 133, a door 134 for entering and exiting the room 100 is installed.

As a general seat layout for a medium-sized or larger office, as shown in the second embodiment, a desk group 131, which is a group of seats for persons in charge, is installed on the interior zone side, and an administrator is installed on the perimeter zone side. In some cases, a desk 132 used by a superior or the like may be installed. In such a case, as shown in the second embodiment, each air conditioning area 101 is provided. Specifically, one desk group 131 and desks 132 installed on the sides of the desk group 131 are made into one set. An air conditioning area 101 on the interior zone side and an air conditioning area 101 on the perimeter zone side are provided for this one set. Then, as many pairs of the desk group 131 and the desk 132 are provided as the number of pairs of the air conditioning area 101 on the interior zone side and the air conditioning area 101 on the perimeter zone side. Depending on the size of the desk group 131, the two desk group 131 and the two desks 132 installed on the sides of the desk group 131 may be combined into one set.

Specifically, in the second embodiment, the air conditioning area 101A on the interior zone side and the air conditioning area 101D on the perimeter zone side are provided for the pair of the desk group 131A and the desk 132D. An air conditioning area 101B on the interior zone side and an air conditioning area 101E on the perimeter zone side are provided for the pair of the desk group 131B and the desk 132E. An air conditioning area 101C on the interior zone side and an air conditioning area 101F on the perimeter zone side are provided for the pair of the desk group 131C and the desk 132F. Since the room 100 does not require active air conditioning in the passage 133, the passage 133 is not included in the air conditioning area 101 in the second embodiment.

Even when the air conditioning system 1 is used in the rooms 100 partitioned into more than two air conditioning areas 101 as in the second embodiment, each user side unit 2 is as shown in the first embodiment. By operating the room 100, a part of the area in the room 100 can be selectively air-conditioned as compared with the conventional one, and energy saving can be achieved as compared with the conventional one. For example, when each user-side unit 2 is equipped with a motion sensor 4, it is assumed that there are no people present in the desk group 131A on the interior zone side and the superior of the desk 132E is absent on the perimeter zone side. In this case, the user-side unit 2A and the user-side unit 2E may be operated by blowing air as shown in FIG. 7 of the first embodiment, and the air-conditioning operation of the other user-side units 2 may be continued. The amount of heat processed by the user-side unit 2A and the user-side unit 2E can be reduced while maintaining the comfort of the air-conditioning area 101 other than the air-conditioning area 101A and the air-conditioning area 101E. That is, the power consumption of the air conditioning system 1 can be reduced while maintaining the comfort of the air conditioning area 101 other than the air conditioning area 101A and the air conditioning area 101E.

The room 100 according to the second embodiment is divided into six air-conditioning areas 101, but of course, the air-conditioning system 1 may be adopted for the rooms 100 divided into seven or more air-conditioning areas 101. good.

Here, each user-side unit 2 of the air conditioning system 1 according to the second embodiment has a different installation position of each blowing unit 20 according to the air conditioning area 101 to be installed. Specifically, in the air conditioning area 101 having a side facing the side wall 106 of the room 100 in a plan view, the plurality of blowing units 20 are along only the side not facing the side wall 106 of the room 100 in a plan view. It is provided.

For example, the air conditioning area 101B does not face the side wall 106 on any of the four sides. Therefore, as in the first embodiment, the utilization side unit 2B of the air conditioning area 101B is provided with the blowing unit 20B along each of the four sides of the air conditioning area 101B. Further, for example, the air conditioning area 101A, the air conditioning area 101C, and the air conditioning area 101E face the side wall 106 on one side. Therefore, the utilization side unit 2 of these air conditioning areas 101 is not provided with the blowing unit 20 along one side of the air conditioning area 101 facing the side wall 106, and does not face the side wall 106. A blowout unit 20 is provided along three sides of the air conditioning area 101. The user-side unit 2 of these air-conditioning areas 101 faces the side wall 106 in the first embodiment so that the total blown air volume is the same as that of the first embodiment in the vicinity of the side not facing the side wall 106. A blowout unit 20 provided on the side of the air conditioner is provided. The total blown air volume may be adjusted by increasing the opening area of at least one blowout port 21 of the blowout unit 20.

Further, for example, the air conditioning area 101D and the air conditioning area 101F have two sides facing the side wall 106. Therefore, the utilization-side unit 2 of these air-conditioning areas 101 is not provided with the blowout unit 20 along the two sides of the air-conditioning area 101 facing the side wall 106, and faces the side wall 106. A blowout unit 20 is provided along the two sides of the air conditioning area 101. The user-side unit 2 of these air-conditioning areas 101 faces the side wall 106 in the first embodiment so that the total blown air volume is the same as that of the first embodiment in the vicinity of the side not facing the side wall 106. A blowout unit 20 provided on the side of the air conditioner is provided. The total blown air volume may be adjusted by increasing the opening area of at least one blowout port 21 of the blowout unit 20.

In the air conditioning area 101 whose at least one side faces the side wall 106 of the room 100 in a plan view, at least a part of the air blown out from the blowing unit 20 provided near the side not facing the side wall 106 is air. After passing near the center of the harmonization area 101, it collides with the side wall 106. Then, the air that collides with the side wall 106 flows again near the center of the air conditioning area 101. Therefore, it is not necessary to install the blowout unit 20 in the vicinity of the side facing the side wall 106 of the room 100 in a plan view. Further, assuming that the blowout unit 20 is provided near the side facing the side wall 106 of the room 100 in a plan view, the air blown out from the blowout unit 20 passes near the center of the air conditioning area 101 and then is adjacent to the air conditioning area 101. It will flow out to area 101. Therefore, the air conditioning area 101 can be more selectively air-conditioned by utilizing the fact that the air blown out from the blowing unit 20 is reflected by the side wall 106.

Embodiment 3.
The air conditioning system 1 is not limited to the configurations shown in the first and second embodiments, and may be configured as in the third embodiment, for example. In the third embodiment, items not particularly described are the same as those in the first or second embodiment, and the same reference numerals are used for the same functions and configurations as those in the first embodiment or the second embodiment. Will be described.

FIG. 10 is a diagram for explaining the arrangement configuration of the air conditioning system according to the third embodiment of the present invention. FIG. 10 is a diagram showing the arrangement positions of the main body 10 and the blowout unit 20 of the user side unit 2 of the air conditioning system 1 by observing the room 100, which is the air conditioning target space, from above. Note that FIG. 10 shows the positions of the suction port 11 of the main body 10 and the outlet 21 of the blowout unit 20.

The room 100 according to the third embodiment is assumed to be a small office. Therefore, the inside of the room 100 according to the third embodiment is divided into two square air-conditioning areas 101 in a plan view. Specifically, the interior of the room 100 is divided into a square air-conditioning area 101A and an air-conditioning area 101B in a plan view. A user-side unit 2 is installed behind each ceiling of the air-conditioning area 101.

Specifically, two desk groups 131 are installed in the room 100. Specifically, the desk group 131A and the desk group 131B are installed in the room 100. These desk groups 131 are installed so as to straddle the interior zone and the perimeter zone. The air conditioning area 101 is divided by a group of desks. Specifically, the desk group 131A is installed in the air conditioning area 101A, and the desk group 131B is installed in the air conditioning area 101B. Further, the main body 10 of each user-side unit 2 is installed so that the center 12 of the suction port 11 coincides with the center 102 of the air conditioning area 101 in a plan view. Further, each of the user-side units 2 according to the third embodiment includes four blowout units 20. Each of the blowout units 20 of each user-side unit 2 is arranged so that the blowout port 21 is in the vicinity of each side of the air conditioning area 101 in a plan view.

Further, a passage 133 is provided on the side of the desk group 131. Further, at one end of the passage 133, a door 134 for entering and exiting the room 100 is installed. Since the room 100 does not require active air conditioning in the passage 133, the passage 133 is not included in the air conditioning area 101 in the third embodiment.

Even when the air conditioning system 1 is used in the room 100 according to the third embodiment, by operating each user-side unit 2 as shown in the first embodiment, a part of the area in the room 100 is conventionally operated. It is possible to harmonize the air more selectively than before, and it is possible to save energy more than before. For example, suppose that the section that uses the desk group 131 is a section that has a lot of outings such as sales. In this case, the desk group 131 often has no attendees. At this time, since each user-side unit 2 according to the third embodiment includes a motion sensor 4, when there are no more occupants in the desk group 131A, the user-side unit 2A is used in FIG. 7 of the first embodiment. As shown in the above, the ventilation operation may be performed, and the air conditioning operation of the user side unit 2B may be continued. While maintaining the comfort of the air conditioning area 101B, the amount of heat processed by the user unit 2A can be reduced. That is, the power consumption of the air conditioning system 1 can be reduced while maintaining the comfort of the air conditioning area 101B.

By the way, in the air conditioning system 1 according to the third embodiment, each blowing unit 20 of the user side unit 2 is provided with a left and right wind direction vane 24 for adjusting the lateral direction of the air blown from the blowing port 21. There is. Therefore, the air conditioning area 101 is more selectively air-conditioned by adjusting the blowing directions of the air from the two blowing units 20 facing each other across the center 102 of the air conditioning area 101 in a plan view as follows. be able to. In the following, an operation method capable of more selectively air-conditioning the air-conditioning area 101A by using the user-side unit 2A will be described. Further, in the following, an operation method capable of more selectively air-conditioning the air-conditioning area 101A with the blow-out unit 20Ac as the third blow-out unit and the blow-out unit 20Ad as the fourth blow-out unit will be described.

Here, in explaining an operation method capable of more selectively air-conditioning the air-conditioning area 101A, the third virtual straight line 113, the fourth virtual straight line 114, the third direction 123, and the fourth direction 124 are as follows. Define as. In a plan view, the virtual straight line connecting the center 22Ac of the outlet 21Ac of the blowout unit 20Ac and the center 102A of the air conditioning area 101A is referred to as a third virtual straight line 113. In a plan view, the virtual straight line connecting the center 22Ad of the outlet 21Ad of the blowout unit 20Ad and the center 102A of the air conditioning area 101A is defined as the fourth virtual straight line 114. In a plan view, one of the directions perpendicular to the third virtual straight line 113 is defined as the third direction 123. In a plan view, the other of the directions perpendicular to the third virtual straight line 113 is defined as the fourth direction 124.

When defined in this way, the air conditioning area 101B adjacent to the air conditioning area 101A exists in the fourth direction 124 of the air conditioning area 101A. Further, the left and right wind direction vanes 24Ac of the blowing unit 20Ac have an inclination such that air is blown out from the outlet 21Ac so as to be inclined in the third direction 123 with respect to the third virtual straight line 113. Further, the left and right wind direction vanes 24Ad of the blowing unit 20Ad have an inclination such that air is blown out from the outlet 21Ad so as to be inclined in the third direction 123 with respect to the fourth virtual straight line 114.

By making the left and right wind direction vanes 24Ac of the blowout unit 20Ac and the left and right wind direction vanes 24Ad of the blowout unit 20Ad tilt as described above, the air conditioning area 101B can be seen from the outlet 21Ac of the blowout unit 20Ac and the outlet 21Ad of the blowout unit 20Ad. Air that is temperature-controlled to move away from the air will be blown out. Therefore, it is possible to further suppress the outflow of cold heat or hot heat from the air conditioning area 101A to the air conditioning area 101B, and the air conditioning area 101A can be more selectively air conditioned.

Further, the air conditioning system 1 according to the third embodiment includes a plurality of ventilation devices 40 for ventilating each air conditioning area 101. That is, a ventilation device 40 is installed in each of the air conditioning areas 101. Each ventilation device 40 is formed with an air supply port 41 and an exhaust port 42 communicating with the air conditioning area 101. That is, the ventilation device 40 sucks the air in the air conditioning area 101 from the exhaust port 42 and discharges it to the outside. Further, the ventilation device 40 supplies outside air from the air supply port 41 to the air conditioning area 101.

Specifically, the air conditioning system 1 includes a ventilation device 40A that ventilates the air conditioning area 101A and a ventilation device 40B that ventilates the air conditioning area 101B. The ventilation device 40A is formed with an air supply port 41A and an exhaust port 42A communicating with the air conditioning area 101A. That is, the ventilation device 40A sucks the air in the air conditioning area 101A from the exhaust port 42A and discharges it to the outside. Further, the ventilation device 40A supplies outside air from the air supply port 41A to the air conditioning area 101A. Similarly, the ventilation device 40B is formed with an air supply port 41B and an exhaust port 42B communicating with the air conditioning area 101B. That is, the ventilation device 40B sucks the air in the air conditioning area 101B from the exhaust port 42B and discharges it to the outside. Further, the ventilation device 40B supplies outside air from the air supply port 41B to the air conditioning area 101B.

Here, the air conditioning system 1 according to the third embodiment operates each ventilation device 40 as follows when there is no person in the air conditioning area 101A or the air conditioning area 101B. By operating each ventilation device 40 as follows, it is possible to realize ventilation capable of saving energy while suppressing an increase in the concentration of pollutants in each air conditioning area 101. In the following, the operation method of each ventilation device 40 will be described by taking the case where no person exists in the air conditioning area 101B as an example. In this case, the ventilation device 40A becomes the first ventilation device, the air supply port 41A of the ventilation device 40A becomes the first air supply port, the ventilation device 40B becomes the second ventilation device, and the air supply port 41B of the ventilation device 40B becomes the second air supply port. It becomes an air supply port.

Specifically, when there is a person in the air conditioning area 101A and no person is present in the air conditioning area 101B, the flow rate of the outside air supplied from the air supply port 41B of the ventilation device 40B to the air conditioning area 101B is set to the ventilation device. The flow rate is larger than the flow rate of the outside air supplied from the air supply port 41A of 40A to the air conditioning area 101A. That is, the ventilation volume of the air conditioning area 101A is reduced with respect to the ventilation volume of the air conditioning area 101B.

In an environment where the user unit 2 performs cooling operation, the outside air is warmer than the air in the air conditioning area 101. Further, in an environment in which the user-side unit 2 performs a heating operation, the outside air is colder than the air in the air conditioning area 101. Therefore, as the ventilation volume increases, the air conditioning load of the user-side unit 2 increases, and the power consumption of the air conditioning system 1 also increases. However, by reducing the ventilation volume of the air conditioning area 101A in which a person exists as described above, the air conditioning load of the user unit 2A can be reduced, and the power consumption of the air conditioning system 1 can also be reduced.

Here, by reducing the ventilation volume of the air-conditioning area 101A as described above, there may be a concern about an increase in the concentration of pollutants in the air-conditioning area 101A. However, since the outside air supplied to the adjacent air-conditioning area 101B flows into the air-conditioning area 101A, the distribution of pollutants is not extremely biased between the air-conditioning area 101A and the air-conditioning area 101B. Therefore, it is possible to suppress an increase in the concentration of pollutants in the air conditioning area 101A.

In the third embodiment, the air supply port 41A of the ventilation device 40A communicates with the air conditioning area 101A at a position farther from the air conditioning area 101B than the center 102A of the air conditioning area 101A in a plan view. There is. By arranging the air supply port 41A of the ventilation device 40A in this way, the outside air supplied from the air supply port 41A of the ventilation device 40A to the air conditioning area 101A sufficiently exchanged heat with the air in the air conditioning area 101A. After that, it will flow into the air conditioning area 101B. Therefore, it is possible to suppress an increase in the air conditioning load of the user-side unit 2B installed in the air conditioning area 101B. Similarly, the air supply port 41B of the ventilation device 40B communicates with the air conditioning area 101B at a position farther from the air conditioning area 101A than the center 102B of the air conditioning area 101B in a plan view. By arranging the air supply port 41B of the ventilation device 40B in this way, the outside air supplied from the air supply port 41B of the ventilation device 40B to the air conditioning area 101B sufficiently exchanged heat with the air in the air conditioning area 101B. After that, it will flow into the air conditioning area 101A. Therefore, it is possible to suppress an increase in the air conditioning load of the user-side unit 2A installed in the air conditioning area 101A.

1 Air conditioning system, 2 User unit, 3 (3A) Power supply line, 4 Human sensor, 5 (5A) Temperature sensor, 6 (6A) Electric box, 10 Main body, 11 Suction port, 12 Center, 13 (13A) ) Heat exchanger, 14 (14A) blower, 20 blowout unit, 21 outlet, 22 center, 23 up and down wind vanes, 24 left and right wind vanes, 30 ducts, 40 ventilators, 41 air supply ports, 42 exhaust ports, 50 controls Equipment, 50A controller, 50B controller, 51 input unit, 52 arithmetic unit, 53 control unit, 54 storage unit, 100 rooms, 101 air conditioning area, 102 center, 103 vertical line, 104 (104A) ceiling, 105 floors Surface, 106 Side wall, 111 1st virtual straight line, 112 2nd virtual straight line, 113 3rd virtual straight line, 114 4th virtual straight line, 121 1st direction, 122 2nd direction, 123 3rd direction, 124 4th direction, 131 Desk group, 132 desks, 133 passages, 134 doors, 201 air conditioning system (conventional), 202 user side unit (conventional), 210 housing (conventional), 211 suction port (conventional), 221 air outlet (conventional).

Claims (14)

An air-conditioning system that air-conditions a room that is divided into multiple air-conditioning areas that are square in plan view.
It is installed behind the ceiling of one of the air-conditioning areas, and is equipped with a user-side unit that performs air-conditioning operation to air-condition the air-conditioning area.
When the air-conditioning area where the user-side unit is installed is used as the installation area,
The user side unit
A main body that is installed behind the ceiling of the installation area and that cools or heats the air in the installation area that is sucked in from the suction port formed on the lower surface.
It is connected to the main body by a duct and installed behind the ceiling in the installation area, and the air supplied from the main body is formed on the lower surface and formed on the outer peripheral side in the installation area in a plan view. With the outlet unit that blows out from the outlet
With
The blowing unit includes a vertical wind direction vane that adjusts the vertical direction of the air blown from the outlet.
The vertical wind direction vane is an air conditioning system that has an inclination with respect to a vertical line and guides air toward the center of the installation area. The air conditioning system according to claim 1, wherein the outlet unit is installed at a position where the distance between the center of the suction port and the center of the outlet is within 3.6 m in a plan view. The vertical wind direction vane is a movable type whose inclination can be changed by electric power during the operation of the user-side unit.
The user-side unit includes a feeder that supplies power to the vertical wind direction vanes.
The air conditioning system according to claim 1 or 2, wherein at least a part of the feeder is arranged in contact with the duct. The vertical wind direction vane is a movable type whose inclination can be changed by electric power during the operation of the user-side unit.
The user-side unit has a configuration capable of performing cooling operation and heating operation as the air-conditioning operation.
The invention according to any one of claims 1 to 3, wherein the inclination of the vertical wind direction vane with respect to the vertical line during the cooling operation is larger than the inclination of the vertical wind direction vane with respect to the vertical line during the heating operation. Air conditioning system. The user-side unit has a configuration capable of performing cooling operation as the air-conditioning operation.
In side view
According to any one of claims 1 to 4, the air blown out from the air outlet during the cooling operation reaches a vertical line passing through the center of the installation area before reaching the floor surface of the installation area. The described air conditioning system. The user-side unit has a configuration capable of performing a heating operation as the air-conditioning operation.
In side view
The air blown out from the air outlet during the heating operation reaches the floor surface of the installation area before reaching the vertical line passing through the center of the installation area according to any one of claims 1 to 5. The described air conditioning system. It is equipped with a motion sensor that detects whether or not there is a person in the installation area.
The user-side unit includes a blower that sends air in the installation area sucked from the suction port to the blowout unit.
When there is no person in the installation area, the user-side unit performs a ventilation operation.
Any of claims 1 to 6, wherein the rotation speed of the blower when the user-side unit performs the blower operation is lower than the rotation speed of the blower when the user-side unit performs the air-conditioning operation. The air conditioning system described in the first paragraph. The user side unit includes two of the blowout units.
Each of the two outlet units has a left-right wind direction vane that adjusts the lateral orientation of the air blown from the outlet.
When one of the two blowing units is the first blowing unit and the other of the two blowing units is the second blowing unit.
The first blowing unit and the second blowing unit are arranged so as to face each other with the center of the installation area in the plan view.
In plan view
The virtual straight line connecting the center of the outlet of the first outlet unit and the center of the installation area is defined as the first virtual straight line.
The virtual straight line connecting the center of the outlet of the second outlet unit and the center of the installation area is defined as the second virtual straight line.
One of the directions perpendicular to the first virtual straight line is the first direction,
When the other of the directions perpendicular to the first virtual straight line is defined as the second direction,
The left and right wind direction vanes of the first blowing unit have an inclination such that air is blown out from the outlet so as to be inclined in the first direction with respect to the first virtual straight line.
Any of claims 1 to 7, wherein the left and right wind direction vanes of the second blowing unit have an inclination such that air is blown out from the outlet so as to be inclined in the second direction with respect to the second virtual straight line. The air conditioning system described in paragraph 1. The user side unit includes a plurality of the blowout units.
In plan view, at least one side of the installation area faces the side wall of the room.
The air conditioning system according to any one of claims 1 to 8, wherein the plurality of blowout units are provided only along a side that does not face the wall of the room in a plan view. The user side unit includes two of the blowout units.
Each of the two outlet units has a left-right wind direction vane that adjusts the lateral orientation of the air blown from the outlet.
When one of the two blowing units is a third blowing unit and the other of the two blowing units is a fourth blowing unit,
The third blowing unit and the fourth blowing unit are arranged so as to face each other with the center of the installation area in the plan view.
In plan view
The virtual straight line connecting the center of the outlet of the third outlet unit and the center of the installation area is defined as the third virtual straight line.
The virtual straight line connecting the center of the outlet of the fourth outlet unit and the center of the installation area is defined as the fourth virtual straight line.
One of the directions perpendicular to the third virtual straight line is the third direction,
When the other of the directions perpendicular to the third virtual straight line is defined as the fourth direction,
In a plan view, the air conditioning area adjacent to the installation area exists in the fourth direction of the installation area.
The left and right wind direction vanes of the third blowing unit have an inclination such that air is blown out from the outlet so as to be inclined in the third direction with respect to the third virtual straight line.
Any of claims 1 to 9, wherein the left and right wind direction vanes of the fourth blowing unit have an inclination such that air is blown out from the outlet so as to be inclined in the third direction with respect to the fourth virtual straight line. The air conditioning system described in paragraph 1. Equipped with two user-side units
One of the two user-side units is designated as the first user-side unit.
The other of the two user-side units is designated as the second user-side unit.
The air conditioning area where the first user unit is installed is set as the first installation area.
When the air conditioning area where the second user unit is installed is set as the second installation area,
The air conditioning system according to any one of claims 1 to 10, wherein the first installation area and the second installation area are adjacent to each other. The air conditioning system according to claim 11, wherein the set temperature of the first utilization side unit and the set temperature of the second utilization side unit differ by 2 ° C. or more. A first ventilation device in which a first air supply port communicating with the first installation area is formed, and
A second ventilation device having a second air supply port communicating with the second installation area, and a second ventilation device.
With
Each of the first user-side unit and the second user-side unit is provided with a motion sensor for detecting whether or not a person is present.
When there is a person in the first installation area and no person is present in the second installation area, the flow rate of the outside air supplied from the second air supply port to the second installation area is the first air supply port. The air conditioning system according to claim 11 or 12, wherein the flow rate of the outside air is larger than the flow rate of the outside air supplied from the first installation area. The first air supply port communicates with the first installation area at a position away from the center of the first installation area in a plan view and from the second installation area.
The air conditioning system according to claim 13, wherein the second air supply port communicates with the second installation area at a position away from the center of the second installation area in a plan view.

Images