JP7261921B1 - heat exchanger - Google Patents

Abstract

An object of the present invention is to improve the layout of a heat exchange device on a vehicle. A heat exchange device (100) comprising a cooling water-refrigerant heat exchanger (26) in which a refrigerant circulating section and a cooling water circulating section are alternately laminated, and a flow path switching valve (101). 120 and a housing 110 that houses a pair of valve bodies 120. The housing 110 comprises a pair of valve body housing portions 111 in which the valve bodies 120 are rotatably arranged, and the valve body housing portion 111 and the outside of the housing 110. , and a communication hole 113 for communicating between the respective valve housing portions 111, and in the same direction from each valve housing portion 111 perpendicularly to the communication hole 113. A pair of extending connection holes 112 are arranged parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and on one end side of the stacking direction to connect the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26. Cooling water is connected between them. [Selection drawing] Fig. 19

Description

The present invention relates to a heat exchange device.

Patent document 1 discloses a main valve housing, a cylindrical main valve body rotatably provided in the main valve housing, and an actuator for rotating the main valve body, which rotates the main valve body. Disclosed is a flow path switching valve in which a communicating port is switched by turning on.

JP 2019-049363 A

However, the flow path switching valve described in Patent Document 1 can only switch between two modes by switching the main valve body between the first rotational position and the second rotational position.

An object of the present invention is to improve the layout of a heat exchange device on a vehicle.

According to an aspect of the present invention, a heat exchanger in which a refrigerant circulation section in which refrigerant circulates and a cooling water circulation section in which cooling water circulates are alternately stacked, and cooling water flows between the heat exchanger. a flow path switching valve that can be provided, wherein the flow path switching valve is provided as a pair rotatably around a rotation center, and a valve body defining at least one intra-valve passage inside and a housing that accommodates the pair of valve bodies, wherein the housing comprises a pair of valve body accommodation sections in which the valve bodies are rotatably arranged, and the valve body accommodation section and the outside of the housing. a plurality of connection holes communicating with the intra-valve passage in one of the pair of valve bodies; and a communication hole communicating between the respective valve body accommodating portions, At least two of the connecting holes and the communicating holes are arranged in the accommodating part so as to form a cross in the circumferential direction. The connection hole is arranged parallel to the stacking direction of the heat exchangers and on one end side in the stacking direction, and connects the flow path switching valve and the heat exchanger so that cooling water can flow. be done.

In the above aspect, the pair of connecting holes extending in the same direction from each of the valve body accommodating portions perpendicularly to the communicating holes are arranged parallel to the stacking direction of the heat exchangers and on one end side in the stacking direction to allow the flow to flow. Cooling water is connected between the path switching valve and the heat exchanger. Therefore, since the flow path of the cooling water is connected at one end side of the stacking direction of the heat exchangers, it is possible to reduce the size of the heat exchanger. Therefore, it is possible to improve the layout of the heat exchange device on the vehicle.

FIG. 1 is a configuration diagram of a temperature control system to which a heat exchange device according to an embodiment of the invention is applied. FIG. 2 is a diagram illustrating a case where the refrigerating cycle circuit is operated in the cooling mode and the air conditioner performs the cooling operation. FIG. 3 is a diagram illustrating a case where the refrigerating cycle circuit is operated in the cooling/storage battery cooling mode and the air conditioner performs the cooling operation. FIG. 4 is a diagram illustrating a case where the refrigeration cycle circuit is operated in the dehumidifying and heating mode and the air conditioner performs the dehumidifying and heating operation. FIG. 5 is a diagram illustrating a case where the refrigerating cycle circuit is operated in heating mode and the air conditioner performs heating operation. FIG. 6 is a diagram illustrating a case where the refrigeration cycle circuit is operated in the battery cooling mode. FIG. 7 is a diagram explaining the case where the temperature control system is operated in the first operation mode. FIG. 8 is a diagram explaining the case where the temperature control system is operated in the second operation mode. FIG. 9 is a diagram explaining the case where the temperature control system is operated in the third operation mode. FIG. 10 is a diagram explaining the case where the temperature control system is operated in the fourth operation mode. FIG. 11 is a perspective view of a channel switching valve. FIG. 12 is an exploded perspective view of the flow path switching valve. FIG. 13 is a plan view of the flow path switching valve. FIG. 14A is a diagram illustrating the operation of the transmission mechanism when the flow path switching valve is switched to the second mode; FIG. 14B is a cross-sectional view of the flow path switching valve switched to the second mode. FIG. 15A is a diagram illustrating the operation of the transmission mechanism when the flow path switching valve is switched to the first mode; FIG. 15B is a cross-sectional view of the flow path switching valve switched to the first mode. FIG. 16A is a diagram illustrating the operation of the transmission mechanism when the channel switching valve is switched to the third mode; FIG. 16B is a cross-sectional view of the flow path switching valve switched to the third mode. FIG. 17 is a front perspective view of the heat exchange device. FIG. 18 is a rear perspective view of the heat exchange device. 19 is an exploded perspective view of FIG. 17. FIG. FIG. 20 is an exploded perspective view of the cooling water channel member. FIG. 21 is a front perspective view of a heat exchange device according to a modification. FIG. 22 is a rear perspective view of a heat exchange device according to a modification. FIG. 23 is a configuration diagram of a modification of the temperature control system to which the heat exchange device according to the embodiment of the invention is applied. FIG. 24 is a diagram explaining a case where the temperature control system is operated in the fifth operation mode. FIG. 25 is a diagram explaining the case where the temperature control system is operated in the sixth operation mode. FIG. 26 is a diagram explaining the case where the temperature control system is operated in the seventh operation mode. FIG. 27 is a diagram explaining the case where the temperature control system is operated in the eighth operation mode. FIG. 28A is a diagram explaining the operation of the transmission mechanism when the flow path switching valve is switched to the first mode; FIG. 28B is a cross-sectional view of the flow path switching valve switched to the first mode. FIG. 29A is a diagram illustrating the operation of the transmission mechanism when the flow path switching valve is switched to the second mode; FIG. 29B is a cross-sectional view of the flow path switching valve switched to the second mode. FIG. 30A is a diagram explaining the operation of the transmission mechanism when the flow path switching valve is switched to the third mode; FIG. 30B is a cross-sectional view of the flow path switching valve switched to the third mode. FIG. 31 is a configuration diagram of a flow path switching valve according to the first embodiment. FIG. 32 is a configuration diagram of a flow path switching valve according to the second embodiment. FIG. 33 is a configuration diagram of a flow path switching valve according to the third embodiment. FIG. 34 is a configuration diagram of a flow path switching valve according to the fourth embodiment. FIG. 35 is a configuration diagram of a flow path switching valve according to the fifth embodiment. FIG. 36 is a configuration diagram of a flow path switching valve according to the sixth embodiment. FIG. 37 is a configuration diagram of a flow path switching valve according to the seventh embodiment. FIG. 38 is a configuration diagram of a flow path switching valve according to the eighth embodiment. FIG. 39 is a configuration diagram of a flow path switching valve according to the ninth embodiment. FIG. 40 is a configuration diagram of a flow path switching valve according to the tenth embodiment. FIG. 41 is a configuration diagram of a flow path switching valve according to the eleventh embodiment. FIG. 42 is a configuration diagram of a flow path switching valve according to the twelfth embodiment. FIG. 43 is a configuration diagram of a flow path switching valve according to the thirteenth embodiment. FIG. 44 is a configuration diagram of a flow path switching valve according to the fourteenth embodiment. FIG. 45 is a configuration diagram of a flow path switching valve according to the fifteenth embodiment. FIG. 46 is a configuration diagram of a flow path switching valve according to the sixteenth embodiment. FIG. 47 is a configuration diagram of a flow path switching valve according to the seventeenth embodiment. FIG. 48 is a configuration diagram of a flow path switching valve according to the eighteenth embodiment. FIG. 49 is a configuration diagram of a flow path switching valve according to the nineteenth embodiment. FIG. 50 is a configuration diagram of a flow path switching valve according to the twentieth embodiment. FIG. 51 is a configuration diagram of a flow path switching valve according to the twenty-first embodiment. FIG. 52 is a configuration diagram of a flow path switching valve according to the twenty-second embodiment. FIG. 53 is a configuration diagram of a flow path switching valve according to the twenty-third embodiment. FIG. 54 is a configuration diagram of a flow path switching valve according to the twenty-fourth embodiment. FIG. 55 is a configuration diagram of a flow path switching valve according to the twenty-fifth embodiment. FIG. 56 is a configuration diagram of a flow path switching valve according to the twenty-sixth embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Temperature control system>
A temperature control system 1 to which a heat exchange device 100 according to an embodiment of the present invention is applied will be described below with reference to FIGS. 1 to 22. FIG.

First, referring to FIG. 1, the overall configuration of the temperature control system 1 will be described. FIG. 1 is a configuration diagram of a temperature control system 1. As shown in FIG.

The temperature control system 1 is a system mounted on a vehicle (not shown), and air-conditions the interior of the vehicle (not shown), cools a driving motor 2 as a driving system heating element, and cools a storage battery 3. It regulates the temperature. The temperature control system 1 includes an air conditioner 10 and a cooling water circuit 40 through which cooling water circulates.

<Air conditioner>
The air conditioner 10 has a HVAC (Heating Ventilation and Air Conditioning) unit 11 through which air used for air conditioning passes, a refrigeration cycle circuit 20 through which a refrigerant circulates, and a controller (not shown). The air conditioner 10 is a heat pump system capable of cooling and heating. The air conditioner 10 is mounted on a vehicle (not shown) and air-conditions the interior of the vehicle (not shown). As refrigerants, for example, HF refrigerants such as HFC-134a and HFO-1234yf, and natural refrigerants such as R744 (CO ₂ ) are used.

The HVAC unit 11 cools or heats the air used for air conditioning. The HVAC unit 11 includes a blower (not shown), an air mix door 13, and a case 14 surrounding these so that air used for air conditioning can pass through. In the HVAC unit 11, an evaporator 25 and a heater core 22 of the refrigeration cycle circuit 20 are arranged. The air blown from the blower exchanges heat with the refrigerant flowing through the evaporator 25 and the refrigerant flowing through the heater core 22 .

A blower is a fan that blows air into the HVAC unit 11 . The rotation speed of the blower is controlled by command signals from the controller.

Air mix door 13 regulates the amount of air passing through heater core 22 located within HVAC unit 11 . The air mix door 13 is installed on the blower side of the heater core 22 . The position of the air mix door 13 moves according to the command signal of the controller. The air mix door 13 opens the heater core 22 side during heating operation and closes the heater core 22 side during cooling operation. The amount of heat exchange between the air and the refrigerant in the heater core 22 is adjusted by the opening of the air mix door 13 .

<Refrigeration cycle circuit>
The refrigeration cycle circuit 20 includes an electric compressor 21 as a compressor, a heater core 22 as a radiator, an outdoor heat exchanger 23 as a first outdoor heat exchanger, a gas-liquid separator 24, and an evaporator as an evaporator. 25, a cooling water-refrigerant heat exchanger 26 as a cooling water heat exchanger, a variable throttle mechanism 27 as a first variable throttle mechanism, a variable throttle mechanism 28 as a second variable throttle mechanism, and a first refrigerant bypass. A bypass passage 30 as a passage, a passage switching valve 31 as a first refrigerant passage switching valve, a bypass passage 32 as a second refrigerant passage switching valve, and a passage switching valve 33 as a second refrigerant passage switching valve. , a check valve 35 as a first check valve, and a check valve 36 as a second check valve.

The refrigeration cycle circuit 20 includes an electric compressor 21, a heater core 22, an outdoor heat exchanger 23, a check valve 35, a variable throttle mechanism 27, an evaporator 25, a check valve 36, and a gas-liquid separator 24. , a main loop in which the refrigerant circulates, a bypass passage 32 that bypasses the variable throttle mechanism 27, the evaporator 25, and the check valve 36 in the main loop, a variable throttle mechanism 28, and a cooling water-refrigerant heat exchanger 26, a first branch passage through which the refrigerant flows, a bypass passage 30 that bypasses the flow switching valve 33 in the main loop, the outdoor heat exchanger 23, and the check valve 35, and the flow switching valve 31 and a second branch passage through which the refrigerant flows.

The electric compressor 21 is driven by an electric motor (not shown) to compress the refrigerant. The electric compressor 21 is, for example, a vane-type rotary compressor, but may be a scroll-type compressor. The rotation speed of the electric compressor 21 is controlled by a command signal from the controller.

The heater core 22 uses the heat of the refrigerant compressed by the electric compressor 21 to heat air used for air conditioning as a fluid. Instead of the heater core 22 directly heating the air used for air conditioning, the heat of the refrigerant may be used to heat hot water, and the heated hot water may heat the air used for air conditioning. In this case, a refrigerant-hot water heat exchanger (not shown) that exchanges heat between the refrigerant and hot water in the refrigeration cycle circuit 20 is provided.

The heater core 22 is provided inside the case 14 . Refrigerant compressed by the electric compressor 21 flows into the heater core 22 . When the air flowing through the case 14 comes into contact with the heater core 22 , heat exchange is performed between the air and the refrigerant compressed by the electric compressor 21 to warm the air. The amount of air that contacts the heater core 22 is adjusted according to the position of the air mix door 13 provided upstream of the heater core 22 in the air flow direction inside the case 14 .

The outdoor heat exchanger 23 is arranged, for example, in the engine room of the vehicle (the motor room in electric vehicles). The outdoor heat exchanger 23 exchanges heat between the refrigerant and the outside air. Outside air is introduced into the outdoor heat exchanger 23 by running of the vehicle or rotation of an outdoor fan (not shown). The outdoor heat exchanger 23 functions as a condenser when the air conditioner 10 performs cooling operation.

The gas-liquid separator 24 separates the refrigerant flowing from the evaporator 25 or the coolant-refrigerant heat exchanger 26 into a liquid-phase refrigerant and a gas-phase refrigerant. The gas-liquid separator 24 supplies the gas-phase refrigerant to the electric compressor 21 .

The evaporator 25 cools and dehumidifies the air passing through the case 14 with the refrigerant that has passed through the variable throttle mechanism 27 and expanded to lower its temperature. In the evaporator 25, the heat of the air flowing through the case 14 evaporates the liquid-phase refrigerant into a gas-phase refrigerant. The gas-phase refrigerant evaporated in the evaporator 25 is supplied again to the electric compressor 21 via the gas-liquid separator 24 .

The cooling water-refrigerant heat exchanger 26 is provided downstream of the variable throttle mechanism 28 in the bypass passage 32 . Refrigerant flows into the cooling water-refrigerant heat exchanger 26 through the variable throttle mechanism 28 and cooling water flows through the first cooling water circuit 50 . That is, the cooling water-refrigerant heat exchanger 26 exchanges heat between the refrigerant, which has passed through the variable throttle mechanism 28 and has been expanded and the temperature of which has decreased, and the cooling water flowing through the first cooling water circuit 50 . In the cooling water-refrigerant heat exchanger 26, the heat of the cooling water flowing in the cooling water circuit 40 evaporates the liquid-phase refrigerant into a gas-phase refrigerant. The gas-phase refrigerant evaporated in the cooling water-refrigerant heat exchanger 26 is supplied to the electric compressor 21 again via the gas-liquid separator 24 .

A variable throttle mechanism 27 is provided between the outdoor heat exchanger 23 and the evaporator 25 . The variable throttle mechanism 27 decompresses and expands the liquid-phase refrigerant flowing from the outdoor heat exchanger 23 through the check valve 35 to lower the temperature. The variable throttling mechanism 27 blocks passage of the refrigerant when closed, and decompresses and expands the refrigerant when throttling. The degree of aperture in the aperture state is adjusted by the controller.

A variable throttle mechanism 28 is provided between the outdoor heat exchanger 23 and the coolant-refrigerant heat exchanger 26 . The variable throttle mechanism 28 decompresses and expands the liquid-phase refrigerant flowing from the outdoor heat exchanger 23 through the check valve 35 to lower the temperature. The variable throttling mechanism 28 blocks passage of the refrigerant when closed, and decompresses and expands the refrigerant when throttling. The degree of aperture in the aperture state is adjusted by the controller.

The bypass passage 30 connects the upstream of the flow path switching valve 33 and the downstream of the check valve 35 . Refrigerant that bypasses the flow switching valve 33 , the outdoor heat exchanger 23 , and the check valve 35 flows through the bypass passage 30 .

A flow path switching valve 31 is provided in the bypass passage 30 . The flow path switching valve 31 is switched between an open state in which the refrigerant flows and a closed state in which the refrigerant flow is interrupted. The channel switching valve 31 is switched by a command signal from the controller.

Flow path switching valve 33 is provided downstream of a branch point with bypass passage 30 between heater core 22 and outdoor heat exchanger 23 . The channel switching valve 33 is switched between an open state in which the coolant flows and a closed state in which the coolant is blocked. The channel switching valve 33 is switched by a command signal from the controller.

When the flow path switching valve 31 is closed and the flow path switching valve 33 is open, the refrigerant flowing from the heater core 22 flows through the flow path switching valve 33, the outdoor heat exchanger 23, and the check valve 35. However, the refrigerant does not flow through the bypass passage 30 . When the flow path switching valve 31 is open and the flow path switching valve 33 is closed, the refrigerant flowing from the heater core 22 flows through the bypass passage 30 and flows through the flow path switching valve 33 and the outdoor heat exchanger 23. , and the check valve 35, the refrigerant does not flow.

The bypass passage 32 connects the downstream of the check valve 35 and the downstream of the flow path switching valve 31 and the upstream of the gas-liquid separator 24 . Refrigerant that bypasses the variable throttle mechanism 27 , the evaporator 25 , and the check valve 36 flows through the bypass passage 32 . A variable throttle mechanism 28 and a coolant-refrigerant heat exchanger 26 are provided in the bypass passage 32 .

When the variable throttle mechanism 27 is in the throttle state and the variable throttle mechanism 28 is in the closed state, the refrigerant flowing from the heater core 22 through the bypass passage 30 or from the outdoor heat exchanger 23 flows through the variable throttle mechanism 27 and the evaporator 25. , and the check valve 36 , and does not flow through the bypass passage 32 . When the variable throttle mechanism 27 is in the closed state and the variable throttle mechanism 28 is in the open state, the refrigerant flowing from the heater core 22 through the bypass passage 30 or from the outdoor heat exchanger 23 flows through the variable throttle mechanism 28 and the cooling water. - The refrigerant flows through the refrigerant heat exchanger 26 and does not flow through the variable throttle mechanism 27, the evaporator 25, and the check valve 36;

The check valve 35 is provided downstream of the outdoor heat exchanger 23 . The check valve 35 allows the flow of the refrigerant flowing from the outdoor heat exchanger 23 and prevents the refrigerant flowing through the bypass passage 30 from flowing back to the outdoor heat exchanger 23 .

A check valve 36 is provided downstream of the evaporator 25 . The check valve 36 allows the refrigerant to flow from the evaporator 25 and prevents the refrigerant that has flowed through the bypass passage 32 from flowing back to the evaporator 25 .

<Cooling water circuit>
The cooling water circuit 40 includes a first cooling water circuit 50 as a reference loop, a second cooling water circuit 60 as a first loop, a third cooling water circuit 70 as a second loop, and a flow path switching valve 101. , has

The first cooling water circuit 50 has a cooling water-refrigerant heat exchanger 26 and a flow path switching valve 101 . An electric pump is not provided in the first cooling water circuit 50 . The first cooling water circuit 50 can switch the supply of the cooling water cooled by the cooling water-refrigerant heat exchanger 26 to the second cooling water circuit 60 and the third cooling water circuit 70 . Cooling water flows through the first cooling water circuit 50 by the electric pump 61 or the electric pump 71 when it is connected to at least one of the second cooling water circuit 60 and the third cooling water circuit 70 .

The second cooling water circuit 60 includes an electric pump 61 as a first pump, a drive system heat exchanger 63 as a drive system heating element heat exchange section, a gas-liquid separator 64, and a second outdoor heat exchanger. It has an outdoor heat exchanger 65 and a channel switching valve 101 .

The electric pump 61 is provided upstream of the drive system heat exchanger 63 and downstream of the gas-liquid separator 64 . The electric pump 61 is driven by an electric motor (not shown) to suck and discharge the cooling water in the second cooling water circuit 60 and circulate it. The rotation speed of the electric pump 61 is controlled by a command signal from the controller.

The drive system heat exchanger 63 is provided upstream of the flow path switching valve 101 and downstream of the electric pump 61 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 . The drive system heat exchanger 63 recovers exhaust heat from the drive motor 2 and cools the drive motor 2 . It should be noted that the drive system heating element may be any component that generates heat during operation, so it may be an inverter (not shown) that drives the drive motor 2, an internal combustion engine (not shown), or the like, instead of the drive motor 2. may

The gas-liquid separator 64 is provided upstream of the electric pump 61 and downstream of the outdoor heat exchanger 65 . The gas-liquid separator 64 separates air bubbles generated in the cooling water flowing through the second cooling water circuit 60 and allows only liquid cooling water to flow into the electric pump 61 .

The outdoor heat exchanger 65 is provided downstream of the flow path switching valve 101 and upstream of the gas-liquid separator 64 . The outdoor heat exchanger 65 is arranged, for example, in the engine room of the vehicle (the motor room in electric vehicles). The outdoor heat exchanger 65 exchanges heat between the cooling water and the outside air. Outside air is introduced into the outdoor heat exchanger 65 by running of the vehicle or rotation of an outdoor fan (not shown).

The third cooling water circuit 70 has an electric pump 71 as a second pump, an electric hot water heater 72 as a heater, a storage battery heat exchanger 73 as a storage battery heat exchange section, and a flow path switching valve 101. .

The electric pump 71 is provided upstream of the electric water heater 72 and downstream of the flow path switching valve 101 . The electric pump 71 is driven by an electric motor (not shown) to suck and discharge the cooling water in the third cooling water circuit 70 and circulate it. The rotation speed of the electric pump 71 is controlled by a command signal from the controller.

The electric hot water heater 72 is provided upstream of the storage battery heat exchanger 73 and downstream of the electric pump 71 . The electric water heater 72 is an electric heater that generates heat when electricity is supplied. The output of the electric water heater 72 is controlled by a command signal from the controller. The electric hot water heater 72 heats the cooling water in the third cooling water circuit 70 to raise the temperature. The electric water heater 72 heats cooling water when heating the storage battery 3 .

The storage battery heat exchanger 73 exchanges heat between the storage battery 3 and cooling water. The storage battery heat exchanger 73 heats the storage battery 3 with high-temperature cooling water or cools the storage battery 3 with low-temperature cooling water. The storage battery 3 supplies electric power to the drive motor 2 .

The flow path switching valve 101 is a rotary valve that includes a pair of valve bodies 120 and a housing 110 that rotatably accommodates the valve bodies 120 . The flow path switching valve 101 has a first mode that connects the first cooling water circuit 50 and the second cooling water circuit 60, and a second mode that connects the first cooling water circuit 50 and the third cooling water circuit 70. , a third mode in which the first cooling water circuit 50, the second cooling water circuit 60, and the third cooling water circuit 70 are connected; and a fourth mode in which both are not connected and are independent. A specific configuration of the flow path switching valve 101 will be described later in detail with reference to FIGS. 11 to 22. FIG.

<Each operation mode>
Next, each operation mode of the temperature control system 1 will be described with reference to FIGS. 2 to 10. FIG. 2 to 10, thick solid lines indicate portions through which the refrigerant or cooling water flows, and thin solid lines indicate portions in which the refrigerant or cooling water stops flowing.

<Operating mode of the refrigeration cycle circuit>
First, each operation mode of the refrigeration cycle circuit 20 will be described with reference to FIGS. 2 to 6. FIG.

<cooling mode>
FIG. 2 is a diagram illustrating a case where the refrigerating cycle circuit 20 is operated in the cooling mode and the air conditioner 10 performs the cooling operation. The cooling mode is a mode that operates when the vehicle interior is cooled.

In the HVAC unit 11 , the air mix door 13 is adjusted to a position where the air flowing inside the case 14 bypasses the heater core 22 .

In the refrigerating cycle circuit 20, the variable throttle mechanism 27 is switched to a throttled state for decompressing and expanding the refrigerant. The variable throttle mechanism 28 is switched to a closed state that blocks passage of refrigerant. The flow path switching valve 31 is switched to a closed state that cuts off the circulation of the refrigerant in the bypass passage 30 . The channel switching valve 33 is switched to an open state in which the refrigerant to the outdoor heat exchanger 23 flows.

The refrigerant compressed by the electric compressor 21 flows into the outdoor heat exchanger 23 through the heater core 22 and the flow path switching valve 33 while maintaining high temperature and high pressure. At this time, the air mix door 13 is positioned so that the air flowing in the case 14 bypasses the heater core 22 , so heat exchange is not performed between the refrigerant and the air in the heater core 22 .

The refrigerant that has flowed into the outdoor heat exchanger 23 exchanges heat with the air passing through the outdoor heat exchanger 23 and liquefies. The refrigerant liquefied in the outdoor heat exchanger 23 flows into the evaporator 25 through the variable throttle mechanism 27 after passing through the check valve 35 . At this time, the variable throttle mechanism 27 decompresses and expands the liquid-phase refrigerant that has flowed in from the outdoor heat exchanger 23 .

The refrigerant that has flowed into the evaporator 25 exchanges heat with the air flowing through the case 14 and is vaporized by the heat of the air flowing through the case 14 . The air inside the case 14 that has exchanged heat with the refrigerant that has flowed into the evaporator 25 is cooled and dehumidified and passes through the inside of the case 14 . This cools and dehumidifies the vehicle interior. The refrigerant vaporized in the evaporator 25 is supplied to the electric compressor 21 again through the gas-liquid separator 24 after passing through the check valve 36 .

In the cooling mode, the refrigerant circulates in the refrigeration cycle circuit 20 as described above, thereby cooling and dehumidifying the air flowing through the case 14 .

<Cooling/storage battery cooling mode>
FIG. 3 is a diagram illustrating a case where the refrigeration cycle circuit 20 is operated in the cooling/storage battery cooling mode and the air conditioner 10 performs cooling operation. The cooling/storage battery cooling mode is a mode that operates when the temperature of the storage battery 3 is high and it is necessary to cool the storage battery 3 and the vehicle interior is to be cooled.

In the HVAC unit 11 , the air mix door 13 is adjusted to a position where the air flowing inside the case 14 bypasses the heater core 22 .

In the refrigerating cycle circuit 20, the variable throttle mechanism 27 is switched to a throttled state for decompressing and expanding the refrigerant. The variable throttling mechanism 28 is switched to a throttling state in which the refrigerant is decompressed and expanded. The flow path switching valve 31 is switched to a closed state that cuts off the circulation of the refrigerant in the bypass passage 30 . The channel switching valve 33 is switched to an open state in which the refrigerant to the outdoor heat exchanger 23 flows.

The refrigerant compressed by the electric compressor 21 flows into the outdoor heat exchanger 23 through the heater core 22 and the flow path switching valve 33 while maintaining high temperature and high pressure. At this time, the air mix door 13 is positioned so that the air flowing in the case 14 bypasses the heater core 22 , so heat exchange is not performed between the refrigerant and the air in the heater core 22 .

The refrigerant that has flowed into the outdoor heat exchanger 23 exchanges heat with the air passing through the outdoor heat exchanger 23 and liquefies. The refrigerant liquefied in the outdoor heat exchanger 23 is branched after passing through the check valve 35, and a part flows into the cooling water-refrigerant heat exchanger 26 via the variable throttle mechanism 28, and the rest is the variable throttle. It flows into the evaporator 25 via the mechanism 27 . At this time, the variable throttle mechanism 27 and the variable throttle mechanism 28 decompress and expand the liquid-phase refrigerant that has flowed in from the outdoor heat exchanger 23 .

The refrigerant that has flowed into the evaporator 25 exchanges heat with the air flowing through the case 14 and is vaporized by the heat of the air flowing through the case 14 . The air inside the case 14 that has exchanged heat with the refrigerant that has flowed into the evaporator 25 is cooled and dehumidified and passes through the inside of the case 14 . This cools and dehumidifies the vehicle interior. The refrigerant vaporized in the evaporator 25 is supplied to the electric compressor 21 again through the gas-liquid separator 24 after passing through the check valve 36 .

On the other hand, the refrigerant that has flowed into the cooling water-refrigerant heat exchanger 26 exchanges heat with the cooling water flowing through the cooling water circuit 40 and is vaporized. As a result, the temperature of the cooling water in the cooling water-refrigerant heat exchanger 26 is lowered. The cooled water cools the storage battery 3 in the storage battery heat exchanger 73 . Cooling of the storage battery 3 will be described later in detail in the explanation of each operation mode of the temperature control system 1 . The refrigerant vaporized in the cooling water-refrigerant heat exchanger 26 joins the refrigerant flowing out of the evaporator 25 and is supplied to the electric compressor 21 again via the gas-liquid separator 24 .

In the cooling/storage battery cooling mode, the refrigerant circulates in the refrigeration cycle circuit 20 as described above, thereby cooling and dehumidifying the air flowing through the case 14 and cooling the storage battery 3 .

<Dehumidification heating mode>
FIG. 4 is a diagram illustrating a case where the refrigerating cycle circuit 20 is operated in the dehumidifying and heating mode and the air conditioner 10 performs the dehumidifying and heating operation. The dehumidification/heating mode is a mode that operates when the vehicle interior is dehumidified and heated.

In the HVAC unit 11 , the air mix door 13 is adjusted to a position where some or all of the air flowing inside the case 14 passes through the heater core 22 .

In the refrigerating cycle circuit 20, the variable throttle mechanism 27 is switched to a throttled state for decompressing and expanding the refrigerant. The variable throttling mechanism 28 is switched to a throttling state in which the refrigerant is decompressed and expanded. The channel switching valve 31 is switched to an open state in which the refrigerant in the bypass passage 30 flows. The channel switching valve 33 is switched to a closed state that blocks the flow of the refrigerant to the outdoor heat exchanger 23 .

The refrigerant compressed by the electric compressor 21 flows into the heater core 22, exchanges heat with the air passing through the heater core 22, and liquefies. The air heated by passing through the heater core 22 is led from the case 14 into the vehicle interior. Thereby, the vehicle interior is heated.

The refrigerant liquefied in the heater core 22 is branched after passing through the flow path switching valve 31, and part of it flows into the cooling water-refrigerant heat exchanger 26 via the variable throttle mechanism 28, and the rest flows into the variable throttle mechanism 27. flows into the evaporator 25 via the . At this time, the variable throttle mechanism 27 and the variable throttle mechanism 28 decompress and expand the liquid-phase refrigerant that has flowed in from the outdoor heat exchanger 23 .

The refrigerant that has flowed into the evaporator 25 exchanges heat with the air flowing through the case 14 and is vaporized by the heat of the air flowing through the case 14 . The air in the case 14 that has exchanged heat with the refrigerant that has flowed into the evaporator 25 is dehumidified and passes through the case 14 . The refrigerant vaporized by the evaporator 25 is supplied to the electric compressor 21 again through the gas-liquid separator 24 .

On the other hand, the refrigerant that has flowed into the cooling water-refrigerant heat exchanger 26 exchanges heat with the cooling water flowing through the cooling water circuit 40 and is vaporized. The refrigerant vaporized in the cooling water-refrigerant heat exchanger 26 joins the refrigerant flowing out of the evaporator 25 and is supplied to the electric compressor 21 again via the gas-liquid separator 24 .

In the dehumidification heating mode, the refrigerant circulates in the refrigeration cycle circuit 20 as described above, so that the air flowing through the case 14 is dehumidified by the evaporator 25 and heated (reheated) by the heater core 22 to dehumidify the interior of the vehicle. Can be heated.

<Heating mode>
FIG. 5 is a diagram illustrating a case where the refrigeration cycle circuit 20 is operated in the heating mode and the air conditioner 10 performs the heating operation. The heating mode is a mode that operates when the interior of the vehicle is heated.

In the HVAC unit 11 , the air mix door 13 is adjusted to a position where the air flowing inside the case 14 passes through the heater core 22 .

In the refrigeration cycle circuit 20, the variable throttling mechanism 27 is switched to a closed state that blocks the flow of refrigerant. The variable throttling mechanism 28 is switched to a throttling state in which the refrigerant is decompressed and expanded. The channel switching valve 31 is switched to an open state in which the refrigerant in the bypass passage 30 flows. The channel switching valve 33 is switched to a closed state that blocks the flow of the refrigerant to the outdoor heat exchanger 23 .

The refrigerant compressed by the electric compressor 21 flows into the heater core 22, exchanges heat with the air passing through the heater core 22, and liquefies. The air heated by passing through the heater core 22 is led from the case 14 into the vehicle interior. Thereby, the vehicle interior is heated.

The refrigerant liquefied by the heater core 22 is guided to the variable throttle mechanism 28 via the flow path switching valve 31 . The refrigerant introduced to the variable throttle mechanism 28 is decompressed and expanded by the variable throttle mechanism 28 and flows into the coolant-refrigerant heat exchanger 26 . The refrigerant that has flowed into the cooling water-refrigerant heat exchanger 26 exchanges heat with the cooling water flowing through the cooling water circuit 40 and is vaporized. The refrigerant vaporized in the cooling water-refrigerant heat exchanger 26 is supplied again to the electric compressor 21 via the gas-liquid separator 24 .

In the heating mode, the refrigerant circulates in the refrigeration cycle circuit 20 as described above, so that the heater core 22 heats the air flowing through the case 14 to heat the vehicle interior.

<Battery cooling mode>
FIG. 6 is a diagram illustrating a case where the refrigeration cycle circuit 20 is operated in the battery cooling mode. The storage battery cooling mode is a mode that operates when the temperature of the storage battery 3 is high and it is necessary to cool the storage battery 3 and air conditioning in the passenger compartment is not required.

Since the HVAC unit 11 does not require air-conditioning in the passenger compartment, the blower stops rotating and air does not flow inside the case 14 .

In the refrigeration cycle circuit 20, the variable throttling mechanism 27 is switched to a closed state that blocks passage of refrigerant. The variable throttling mechanism 28 is switched to a throttling state in which the refrigerant is decompressed and expanded. The flow path switching valve 31 is switched to a closed state that cuts off the circulation of the refrigerant in the bypass passage 30 . The channel switching valve 33 is switched to an open state in which the refrigerant to the outdoor heat exchanger 23 flows.

The refrigerant compressed by the electric compressor 21 flows into the outdoor heat exchanger 23 through the heater core 22 and the flow path switching valve 33 while maintaining high temperature and high pressure. At this time, no air is flowing in the HVAC unit 11, so heat exchange is not performed between the refrigerant and the air in the heater core 22. FIG.

The refrigerant that has flowed into the outdoor heat exchanger 23 exchanges heat with the air passing through the outdoor heat exchanger 23 and liquefies. The refrigerant liquefied in the outdoor heat exchanger 23 flows through the check valve 35 and then into the coolant-refrigerant heat exchanger 26 via the variable throttle mechanism 28 . At this time, the variable throttle mechanism 28 decompresses and expands the liquid-phase refrigerant that has flowed in from the outdoor heat exchanger 23 .

The refrigerant that has flowed into the cooling water-refrigerant heat exchanger 26 exchanges heat with the cooling water flowing through the cooling water circuit 40 and is vaporized. As a result, the temperature of the cooling water in the cooling water-refrigerant heat exchanger 26 is lowered. The cooled water cools the storage battery 3 in the storage battery heat exchanger 73 . Cooling of the storage battery 3 will be described later in detail in the explanation of each operation mode of the temperature control system 1 . The refrigerant vaporized in the cooling water-refrigerant heat exchanger 26 is supplied again to the electric compressor 21 via the gas-liquid separator 24 .

In the storage battery cooling mode, the coolant circulates in the refrigeration cycle circuit 20 as described above, so that the storage battery 3 can be cooled without air-conditioning the vehicle interior.

<Operation mode of temperature control system>
Next, each operation mode of the temperature control system 1 will be described with reference to FIGS. 7 to 10. FIG. 7 to 10, since the refrigeration cycle circuit 20 may be operable in a plurality of operation modes, flow and stop of refrigerant in a specific operation mode are not illustrated.

<First operation mode>
FIG. 7 is a diagram illustrating a case where the temperature control system 1 is operated in the first operation mode.

In the cooling water circuit 40, the channel switching valve 101 is switched to the first mode, the first cooling water circuit 50 and the second cooling water circuit 60 are connected, and the third cooling water circuit 70 is independent.

At this time, the refrigerating cycle circuit 20 is operated in heating mode or dehumidifying heating mode.

In the first cooling water circuit 50 and the second cooling water circuit 60, the electric pump 61 operates to circulate the cooling water. Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has increased through heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is led to the cooling water-refrigerant heat exchanger 26 .

In the cooling water-refrigerant heat exchanger 26, the refrigerant in the refrigerating cycle circuit 20 is evaporated by the heat of the cooling water. In the cooling water-refrigerant heat exchanger 26, the temperature of the cooling water is lowered by heat exchange with the refrigerant. The cooling water whose temperature has been lowered in the cooling water-refrigerant heat exchanger 26 is guided to the outdoor heat exchanger 65 . In the outdoor heat exchanger 65, heat is exchanged with the outside air, and the temperature of the cooling water rises. The cooling water that has passed through the outdoor heat exchanger 65 passes through the gas-liquid separator 64 and is supplied to the electric pump 61 again.

In this way, in the first cooling water circuit 50 and the second cooling water circuit 60, the outdoor heat exchanger 65 absorbs heat from the outside air into the cooling water, and the drive system heat exchanger 63 absorbs heat from the drive motor 2 to generate heat. Cooling water is heated. The heated cooling water is led to the cooling water-refrigerant heat exchanger 26, where heat is absorbed from the cooling water to the refrigerant. As a result, the refrigeration cycle circuit 20 can absorb heat from the outside air and utilize the waste heat of the driving motor 2 to perform heating operation or dehumidifying heating operation.

On the other hand, in the third cooling water circuit 70, the electric pump 71 operates to circulate the cooling water. Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . The electric hot water heater 72 operates when the temperature of the storage battery 3 is low and it is necessary to heat the storage battery 3 . The storage battery heat exchanger 73 exchanges heat with the storage battery 3 to heat the storage battery 3 . The cooling water whose temperature has been lowered by heat exchange with the storage battery 3 is led to the electric pump 71 again.

Thus, in the third cooling water circuit 70 , the cooling water is heated by the electric hot water heater 72 , and the storage battery 3 can be heated by the storage battery heat exchanger 73 by heat exchange with the cooling water whose temperature has increased.

<Second operation mode>
FIG. 8 is a diagram illustrating a case where the temperature control system 1 is operated in the second operation mode.

In the cooling water circuit 40, the channel switching valve 101 is switched to the second mode, the first cooling water circuit 50 and the third cooling water circuit 70 are connected, and the second cooling water circuit 60 is independent.

At this time, the refrigerating cycle circuit 20 is operated in a cooling mode, a cooling/battery cooling mode, a battery cooling mode, or a heating mode.

In the first cooling water circuit 50 and the third cooling water circuit 70, the electric pump 71 operates to circulate the cooling water. Cooling water whose temperature has been lowered by the cooling water-refrigerant heat exchanger 26 is discharged from the electric pump 71 . Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . The electric hot water heater 72 does not operate when the refrigeration cycle circuit 20 is operated in the cooling mode, the cooling/battery cooling mode, or the battery cooling mode. The storage battery heat exchanger 73 exchanges heat with the storage battery 3 to cool the storage battery 3 . The cooling water whose temperature has risen due to heat exchange with the storage battery 3 is led to the cooling water-refrigerant heat exchanger 26 again. In the cooling water-refrigerant heat exchanger 26, the temperature of the cooling water is lowered by heat exchange with the refrigerant.

The electric hot water heater 72 operates when the refrigeration cycle circuit 20 is operated in the heating mode and the waste heat from the storage battery 3 alone is insufficient for the heating operation. In this case, the electric hot water heater 72 heats the cooling water, and the storage battery heat exchanger 73 heats the cooling water with the waste heat of the storage battery 3 . The heated cooling water is led to the cooling water-refrigerant heat exchanger 26, where heat is absorbed from the cooling water to the refrigerant. As a result, the refrigerating cycle circuit 20 can heat-exchange with the electric hot water heater 72 and utilize the waste heat of the storage battery 3 to perform the heating operation.

Thus, in the first cooling water circuit 50 and the third cooling water circuit 70, the cooling water cooled by the cooling water-refrigerant heat exchanger 26 can be used to cool the storage battery 3. FIG. Moreover, when the refrigerating cycle circuit 20 is in the heating mode, the heating operation using the heat of the electric water heater 72 is possible.

On the other hand, in the second cooling water circuit 60, the electric pump 61 operates to circulate the cooling water. Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has risen due to heat exchange with the driving motor 2 is guided to the outdoor heat exchanger 65 . In the outdoor heat exchanger 65, the cooling water is cooled by heat exchange with the outside air. The cooling water cooled by the outdoor heat exchanger 65 passes through the gas-liquid separator 64 and is led to the electric pump 61 again.

As described above, in the third cooling water circuit 70, the drive system heat exchanger 63 absorbs the waste heat of the drive motor 2 into the cooling water, and the outdoor heat exchanger 65 radiates the heat to the outside air. Motor 2 can be cooled.

<Third operation mode>
FIG. 9 is a diagram illustrating the case where the temperature control system 1 is operated in the third operation mode.

In the cooling water circuit 40, the channel switching valve 101 is switched to the third mode, and the first cooling water circuit 50, the second cooling water circuit 60, and the third cooling water circuit 70 are connected.

At this time, the refrigerating cycle circuit 20 is operated in heating mode.

In the cooling water circuit 40, the electric pumps 61 and 71 are operated to circulate the cooling water. Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has increased due to heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is supplied to the electric pump 71 .

Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . At this time, the electric hot water heater 72 operates when the waste heat of the driving motor 2 and the waste heat of the storage battery 3 are insufficient for the heating operation. The storage battery heat exchanger 73 exchanges heat with cooling water to cool the storage battery 3 . The cooling water whose temperature has increased through heat exchange with the storage battery 3 passes through the flow path switching valve 101 and is led to the cooling water-refrigerant heat exchanger 26 . In the cooling water-refrigerant heat exchanger 26, heat is absorbed from the cooling water to the refrigerant. Thereby, the refrigerating cycle circuit 20 can be operated in heating mode. The cooling water whose temperature has been lowered in the cooling water-refrigerant heat exchanger 26 is guided to the outdoor heat exchanger 65 . The temperature of the outdoor heat exchanger 65 rises through heat exchange with the outside air. The cooling water that has passed through the outdoor heat exchanger 65 passes through the gas-liquid separator 64 and is supplied to the electric pump 61 again.

As described above, the temperature control system 1 absorbs heat from the outside air, utilizes the waste heat of the driving motor 2 and the storage battery 3, and heats the cooling water with the electric water heater 72 as necessary. The temperature of the cooling water led to the refrigerant heat exchanger 26 rises. Thereby, the refrigerating cycle circuit 20 can be operated in the heating mode.

<Fourth operation mode>
FIG. 10 is a diagram illustrating a case where the temperature control system 1 is operated in the fourth operation mode.

In the cooling water circuit 40, the channel switching valve 101 is switched to the fourth mode, and the first cooling water circuit 50, the second cooling water circuit 60, and the third cooling water circuit 70 are not connected and are independent. there is

At this time, the refrigerating cycle circuit 20 is operated in the cooling mode or stopped.

In the second cooling water circuit 60, the electric pump 61 operates to circulate the cooling water. Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has risen due to heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is led to the outdoor heat exchanger 65 . In the outdoor heat exchanger 65, the cooling water is cooled by heat exchange with the outside air. The cooling water cooled by the outdoor heat exchanger 65 passes through the gas-liquid separator 64 and is supplied to the electric pump 61 again.

On the other hand, in the third cooling water circuit 70, the electric pump 71 operates to circulate the cooling water. Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . The electric hot water heater 72 operates when the temperature of the storage battery 3 is low and it is necessary to heat the storage battery 3 . The storage battery heat exchanger 73 exchanges heat with cooling water to heat the storage battery 3 . The cooling water whose temperature has been lowered by heat exchange with the storage battery 3 passes through the flow path switching valve 101 and is supplied to the electric pump 61 again.

Thus, in the temperature control system 1, the cooling water is circulated independently in the second cooling water circuit 60 and the third cooling water circuit 70, thereby cooling the driving motor 2 and heating the storage battery 3. Is possible.

<Flow switching valve>
Next, the flow path switching valve 101 will be described with reference to FIGS. 11 to 22. FIG.

First, with reference to FIGS. 11 to 13, the configuration of flow path switching valve 101 will be described. 11 is a perspective view of the flow path switching valve 101. FIG. 12 is an exploded perspective view of the flow path switching valve 101. FIG. 13 is a plan view of the flow path switching valve 101. FIG.

As shown in FIG. 12, the flow path switching valve 101 has a housing 110, a pair of valve bodies 120, a seal member 130, a transmission mechanism 140, a cover member 150, and an actuator 160. The flow path switching valve 101 is a rotary valve that includes a pair of valve bodies 120 and a housing 110 that rotatably accommodates the valve bodies 120 .

As shown in FIG. 11, the housing 110 is a substantially rectangular parallelepiped box with curved corners. Housing 110 accommodates a pair of valve bodies 120 . As shown in FIG. 12 , the housing 110 has a pair of valve housing portions 111 , a plurality of (here, six) connection holes 112 , and a communication hole 113 . The housing 110 is divided into a first housing 110A and a second housing 110B.

The first housing 110A has a pair of valve body accommodating portions 111, six connection holes 112, and a communication hole 113. As shown in FIG. The first housing 110A is formed with an open top surface so that the valve body 120 can be accommodated in the valve body accommodating portion 111 and the seal member 130 can be inserted.

The second housing 110B is a lid that closes the opening of the first housing 110A. The second housing 110B closes the opening of the valve housing portion 111 formed inside the first housing 110A. The second housing 110B presses the sealing member 130 with the first housing 110A. The second housing 110B is fixed to the first housing 110A by fastening a plurality of bolts 110C. A gear housing chamber 115 for housing the transmission mechanism 140 is formed on the opposite side of the first housing 110A in the second housing 110B.

The valve body accommodating portion 111 is a cylindrical space in which the valve body 120 is rotatably arranged. The valve body housing portion 111 has a valve body housing portion 111A that houses one valve body 120A and a valve body housing portion 111B that houses the other valve body 120B. In each valve housing portion 111, three connection holes 112 and three communication holes 113 are arranged in a cross shape in the circumferential direction.

The connection hole 112 allows the valve body accommodating portion 111 and the outside of the housing 110 to communicate with each other. The connection hole 112 is formed on the inner periphery of a cylindrical pipe member that protrudes outward from the first housing 110A. The connection hole 112 opens to the inner peripheral surface of the valve body accommodating portion 111 . The connection holes 112 are arranged side by side in the circumferential direction of the valve body 120 in the valve body accommodating portion 111 . The connection hole 112 communicates with one side passage 121 or the other side passage 122 of one of the pair of valve bodies 120, which will be described later.

As shown in FIG. 13, the connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and the other valve body 120B. A connection hole 112C as a third connection hole and a connection hole 112D as a fourth connection hole provided so as to sandwich, and a fifth connection hole provided so as to sandwich one valve body 120A and the other valve body 120B It has a connection hole 112E and a connection hole 112F as a sixth connection hole.

112 A of connection holes, the connection hole 112E, the connection hole 112B, and the communication hole 113 are provided in order by 90 degree|times at the circumferential direction at the valve body accommodating part 111A. That is, the connection holes 112A and 112B are provided on the same straight line, the connection holes 112E and the communication hole 113 are provided on the same straight line, and these straight lines cross each other at right angles. A connection hole 112D, a connection hole 112F, a connection hole 112C, and a communication hole 113 are provided in order at intervals of 90 degrees in the circumferential direction in the valve housing portion 111B. That is, the connection holes 112C and 112D are provided on the same straight line, the connection holes 112F and the communication hole 113 are provided on the same straight line, and these straight lines cross each other at right angles.

A pair of adjacent connection holes 112A and 112C respectively communicating with one valve body housing portion 111A and the other valve body housing portion 111B are connected by a first cooling water circuit 50 (reference loop). A pair of connection holes 112B and 112E communicating with one valve housing portion 111A are connected by a third cooling water circuit 70 (second loop). A pair of connection holes 112D and 112F communicating with the other valve housing portion 111B are connected by a second cooling water circuit 60 (first loop).

As shown in FIG. 12 , the communication hole 113 allows communication between the respective valve housing portions 111 . Specifically, the communication hole 113 is a passage that communicates with the valve housing portion 111A on one side and the valve housing portion 111B on the other side by cutting out the wall portion of the closest position. Communicating hole 113 is provided on a straight line connecting connecting hole 112E and connecting hole 112F. The communication hole 113 opens to the inner peripheral surface of the valve housing portion 111 .

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120 with the center of rotation interposed therebetween (see FIG. 14B). The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages. Not limited to this, the valve body 120 is not limited to a pair of intra-valve passages, and at least one intra-valve passage may be defined inside.

A pair of openings of the one-side passage 121 are provided on the outer periphery of the valve body 120 at intervals of 90 degrees in the circumferential direction. A pair of openings of the other side passage 122 are provided on the outer periphery of the valve body 120 at intervals of 90 degrees in the circumferential direction. That is, the pair of openings of the one-side passage 121 and the pair of openings of the other-side passage 122 are arranged side by side in the circumferential direction at intervals of 90 degrees on the outer periphery of the valve body 120 .

The one-side passage 121 and the other-side passage 122 in each valve element 120 and the communication hole 113 form three flow paths in the housing 110 that connect two connection holes 112 each.

Thus, the flow path switching valve 101 is provided with a pair of valve bodies 120 rotatable around the center of rotation, and a housing 110 that houses the pair of valve bodies 120 . The valve housing portion 111 communicates with the valve housing portion 111 through the communication hole 113 . Therefore, by rotating each of the pair of valve bodies 120, the plurality of connection holes 112 can be directly connected through the intra-valve passages (the one side passage 121 and the other side passage 122) defined in the valve bodies 120, It is possible to connect a plurality of connection holes 112 via the intra-valve passages (the one-side passage 121 and the other-side passage 122) and the communication holes 113, and to switch between many modes. Therefore, it is possible to provide the flow path switching valve 101 that is capable of switching between many modes with a simple configuration.

A pair of valve bodies 120 are rotationally driven together by a single actuator 160 . This makes it possible to rotationally drive the valve body 120 with a simple configuration, and eliminates the need for coordinated control when driven by separate actuators. Valve body 120A is switched between a first position, a second position and a third position by actuator 160 . Valve body 120B is switched between a first position and a second position by actuator 160 . Switching the position of the valve body 120 will be described in detail later with reference to FIGS. 14A to 16B.

The seal member 130 has a first seal member 131 and a pair of second seal members 132 . The first seal member 131 is formed in an elliptical shape and seals the outer peripheries of the pair of valve housing portions 111 . The second seal member 132 is formed in a circular shape and seals the outer circumference of the rotating shaft of each valve body 120 .

The transmission mechanism 140 has a drive gear 141 , a first driven gear 142 and a second driven gear 143 .

Drive gear 141 is connected to the output shaft of actuator 160 . Drive gear 141 is rotated by the driving force of actuator 160 . The drive gear 141 meshes with the first driven gear 142 and the second driven gear 143 . The 1st driven gear 142 is connected with the rotating shaft of 120 A of one valve bodies. The first driven gear 142 rotates as the drive gear 141 rotates. The second driven gear 143 is connected to the rotating shaft of the other valve body 120B. The second driven gear 143 rotates as the drive gear 141 rotates.

The transmission mechanism 140 exemplifies a configuration capable of switching the flow path switching valve 101 among a first mode, a second mode, and a third mode. Alternatively, a transmission mechanism that can switch the flow path switching valve 101 to a fourth mode in addition to the first, second, and third modes may be provided. The operation of transmission mechanism 140 is described in greater detail below with reference to FIGS. 14A-16B.

The cover member 150 is a lid that closes the gear housing chamber 115 of the second housing 110B. Cover member 150 is fixed to second housing 110B by fastening a plurality of bolts 150A.

The actuator 160 is provided on the opposite side of the cover member 150 to the second housing 110B. Actuator 160 is fixed to cover member 150 by fastening a plurality of bolts 160A. The output shaft of actuator 160 is inserted through cover member 150 and connected to drive gear 141 . The actuator 160 rotates according to a command signal from the controller to switch the mode of the transmission mechanism 140 and switch the flow path switching valve 101 to each mode.

<Each mode of flow switching valve>
Next, with reference to FIGS. 14A to 16B, the first mode, second mode, and third mode of the flow path switching valve 101 will be described.

First, the second mode of the flow path switching valve 101 will be described with reference to FIGS. 14A and 14B. FIG. 14A is a diagram illustrating the operation of the transmission mechanism 140 when the flow path switching valve 101 is switched to the second mode. FIG. 14B is a cross-sectional view of flow path switching valve 101 switched to the second mode.

As shown in FIG. 14A, in the transmission mechanism 140, the teeth 141a of the drive gear 141 and the teeth 142a of the first driven gear 142 are meshed, and the teeth 141a of the drive gear 141 and the teeth 143a of the second driven gear 143 are meshed. are engaged.

At this time, as shown in FIG. 14B, in the valve body 120A, the one side passage 121 communicates the connection hole 112A and the connection hole 112E, and the other side passage 122 communicates the connection hole 112B and the communication hole 113. . In the valve body 120B, the one side passage 121 communicates the connection hole 112C and the communication hole 113, and the other side passage 122 communicates the connection hole 112D and the connection hole 112F. At this time, the connection hole 112B and the connection hole 112C communicate with each other through the other side passage 122 of the valve body 120A, the communication hole 113, and the one side passage 121 of the valve body 120B. The positions of the valve body 120A and the valve body 120B at this time are both in the first position.

As a result, the first cooling water circuit 50 and the third cooling water circuit 70 are connected, and the second cooling water circuit 60 becomes independent.

Next, the first mode of the flow path switching valve 101 will be described with reference to FIGS. 15A and 15B. FIG. 15A is a diagram explaining the operation of the transmission mechanism 140 when the flow path switching valve 101 is switched to the first mode. FIG. 15B is a cross-sectional view of flow path switching valve 101 switched to the first mode.

When the actuator 160 is operated from the state shown in FIGS. 14A and 14B to rotate the drive gear 141 clockwise, the first driven gear 142 and the second driven gear 143 rotate counterclockwise 90 degrees, and the state shown in FIG. 15A becomes the state shown in . At this time, the valve body 120A rotates counterclockwise 90 degrees together with the first driven gear 142, and the valve body 120B rotates counterclockwise 90 degrees together with the second driven gear 143, resulting in the state shown in FIG. 15B.

As shown in FIG. 15A, in the transmission mechanism 140, the teeth 141a of the drive gear 141 and the teeth 142a of the first driven gear 142 mesh with each other, whereas the teeth 141a of the drive gear 141 mesh with the teeth 142a of the second driven gear 143. It does not mesh with the tooth 143a. The driving gear 141 and the second driven gear 143 are in contact with each other at surfaces 141b and 143b on which the teeth 141a and 143a are not formed.

At this time, as shown in FIG. 15B, in the valve body 120A, the one side passage 121 communicates the connection hole 112A and the communication hole 113, and the other side passage 122 communicates the connection hole 112B and the connection hole 112E. . In the valve body 120B, the one side passage 121 communicates the connection hole 112C and the connection hole 112F, and the other side passage 122 communicates the connection hole 112D and the communication hole 113. As shown in FIG. At this time, the connection hole 112A and the connection hole 112D communicate with each other through the one side passage 121 of the valve body 120A, the communication hole 113, and the other side passage 122 of the valve body 120B. The positions of the valve body 120A and the valve body 120B at this time are both at the second position.

As a result, the first cooling water circuit 50 and the second cooling water circuit 60 are connected, and the third cooling water circuit 70 becomes independent.

Next, the third mode of the flow path switching valve 101 will be described with reference to FIGS. 16A and 16B. FIG. 16A is a diagram explaining the operation of the transmission mechanism 140 when the flow path switching valve 101 is switched to the third mode. FIG. 16B is a cross-sectional view of flow path switching valve 101 switched to the third mode.

When the actuator 160 is actuated from the state shown in FIGS. 15A and 15B to further rotate the driving gear 141 clockwise, the first driven gear 142 rotates counterclockwise 90 degrees to the state shown in FIG. 16A. . At this time, the valve body 120A also rotates counterclockwise 90 degrees together with the first driven gear 142, resulting in the state shown in FIG. 16B.

As shown in FIG. 16A, in the transmission mechanism 140, the teeth 141a of the drive gear 141 and the teeth 142a of the first driven gear 142 are meshed with each other, whereas the teeth 141a of the drive gear 141 and the second driven gear 143 are meshed. It does not mesh with the tooth 143a. Since the driving gear 141 and the second driven gear 143 are in contact with each other at the surfaces 141b and 143b on which the teeth 141a and 143a are not formed, the driving gear 141 does not rotate even if the driving gear 141 rotates.

When the drive gear 141 is rotated counterclockwise from this state, the teeth 141a of the drive gear 141 and the teeth 143a of the second driven gear 143 mesh again, and the second driven gear 143 can be rotated clockwise. can.

At this time, as shown in FIG. 16B, in the valve body 120A, the one side passage 121 communicates the connection hole 112B and the communication hole 113, and the other side passage 122 communicates the connection hole 112A and the connection hole 112E. . In the valve body 120B, the one side passage 121 communicates the connection hole 112C and the connection hole 112F, and the other side passage 122 communicates the connection hole 112D and the communication hole 113. As shown in FIG. At this time, the connection hole 112B and the connection hole 112D communicate with each other through the one side passage 121 of the valve body 120A, the communication hole 113, and the other side passage 122 of the valve body 120B. The position of the valve body 120A at this time is the third position, and the position of the valve body 120B remains at the second position.

Thereby, the first cooling water circuit 50, the second cooling water circuit 60, and the third cooling water circuit 70 are all connected.

By operating the transmission mechanism 140 as described above, even when a single actuator 160 is used, the valve disc 120B is switched between the first position and the second position, and the valve disc 120A is switched between the first position and the second position. position and the third position, and the channel switching valve 101 can be switched between the first mode, the second mode, and the third mode.

<Heat exchange device>
Next, a heat exchange device 100 to which the channel switching valve 101 is applied will be described with reference to FIGS. 17 to 20. FIG.

As shown in FIG. 17, the heat exchange device 100 includes a cooling water-refrigerant heat exchanger 26 as a heat exchanger, a flow path switching valve 101, a variable throttle mechanism 28, a bracket 170 as a mounting member, a cooling and a water channel member 180 .

The cooling water-refrigerant heat exchanger 26 is formed by alternately stacking a refrigerant circulation section (not shown) in which the refrigerant circulates and a cooling water circulation section (not shown) in which the cooling water circulates. Coolant-to-refrigerant heat exchanger 26 has a refrigerant inlet 26a and a refrigerant outlet 26b.

The refrigerant that has passed through the check valve 35 from the outdoor heat exchanger 23 or the refrigerant that has passed through the flow path switching valve 31 from the heater core 22 is supplied from the refrigerant inlet 26a. Refrigerant that is introduced to the gas-liquid separator 24 after heat exchange in the cooling water-refrigerant heat exchanger 26 is discharged from the refrigerant outlet 26b.

Flow path switching valve 101 is arranged such that the bottom of housing 110 faces the side surface of cooling water-refrigerant heat exchanger 26 and actuator 160 is positioned farthest from cooling water-refrigerant heat exchanger 26 .

Flow path switching valve 101 is provided so that cooling water can flow between it and cooling water-refrigerant heat exchanger 26 . At least two (here, three) connection holes 112 and communication holes 113 are arranged in a cross shape in the circumferential direction in each valve body housing portion 111 of the flow path switching valve 101 . A pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicularly to the communication hole 113 are arranged parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and on one end side of the stacking direction. , and the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 are connected so that the cooling water can flow therethrough.

Bracket 170 is a plate-like member for attaching heat exchange device 100 to a vehicle. A cooling water-to-refrigerant heat exchanger 26 is attached to one plane of the bracket 170 . A cooling water channel member 180 is attached to the other plane of the bracket 170 . The bracket 170 is provided with a plurality of (here, four) mounting holes 171 for bolting to the vehicle. The bracket 170 also has a pair of arm portions 172 for fixing the flow path switching valve 101 (see FIG. 19).

The cooling water flow path member 180 constitutes the first cooling water circuit 50 . As shown in FIG. 18, in the cooling water channel member 180, there are a cooling water channel 181 connecting the connection hole 112A of the channel switching valve 101 and the cooling water-refrigerant heat exchanger 26, A cooling water flow path 182 connecting the connection hole 112C and the cooling water-refrigerant heat exchanger 26 is formed.

As shown in FIG. 20, the cooling water channel member 180 is formed by a pair of plate members 180a and 180b. The plate member 180a and the plate member 180b are stacked in the same direction as the stacking direction and joined to each other. The cooling water channel member 180 is formed flat in the stacking direction by a pair of plate members 180a and 180b.

The plate member 180a and the plate member 180b are provided with recesses for forming the cooling water flow paths 181 and 182, respectively. As shown in FIGS. 19 and 20, the plate member 180a has a pair of cooling water flow openings 183 connected to the cooling water-refrigerant heat exchanger 26, and a cooling water flow opening 184 connected to the connection hole 112A. , and a cooling water flow port 185 connected to the connection hole 112C are provided.

A pair of bosses 186 are provided on the plate member 180a. The pair of bosses 186 are provided at the same positions as the mounting holes 171 of the bracket 170 and bolted together with the bracket 170 to the vehicle.

As described above, the pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicularly to the communication hole 113 are parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and It is arranged on one end side in the stacking direction, and is connected between the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 so that the cooling water can flow therethrough. A cooling water flow path member 180 that constitutes the first cooling water circuit 50 is formed flat in the stacking direction by a pair of plate members 180a and 180b.

As a result, the cooling water flow path is connected by the flat cooling water flow path member 180 at one end side of the cooling water-refrigerant heat exchanger 26 in the stacking direction, so that the heat exchange device 100 can be made smaller. It is possible. Therefore, the layout of the heat exchange device 100 in the vehicle can be improved.

<Modified example of heat exchange device>
Next, a modification of the heat exchange device 100 will be described with reference to FIGS. 21 and 22. FIG. In this modification, the heat exchange device 100 shown in FIGS. 17 to 20 is further provided with a refrigerant-hot water heat exchanger 29 .

The heat exchange device 100 includes a cooling water-refrigerant heat exchanger 26 as a first heat exchanger, a refrigerant-hot water heat exchanger 29 as a second heat exchanger, a flow path switching valve 101, and a variable throttle mechanism 28. , a coolant channel member 37 as a coolant channel connection member, a pair of brackets 170A and 170B as mounting members, and a cooling water channel member 180. As shown in FIG.

The cooling water-refrigerant heat exchanger 26 is formed by alternately stacking a first cooling water circulation section (not shown) in which the coolant circulates and a first cooling water circulation section (not shown) in which the cooling water circulates. In the cooling water-refrigerant heat exchanger 26, the cooling water is cooled by heat exchange with the refrigerant. The cooling water-refrigerant heat exchanger 26 has a refrigerant inlet (not shown) and a refrigerant outlet 26b. The cooling water-refrigerant heat exchanger 26 has a pair of cooling water inlets and outlets (not shown) respectively connected to the pair of cooling water flow openings 183 of the cooling water channel member 180 .

A coolant inlet is provided at one end side where the bracket 170A is provided in the stacking direction. Refrigerant that has passed through the refrigerant-hot water heat exchanger 29 is supplied from the refrigerant inlet. The coolant outlet 26b is provided on the other end side in the stacking direction. Refrigerant that is introduced to the gas-liquid separator 24 after heat exchange in the cooling water-refrigerant heat exchanger 26 is discharged from the refrigerant outlet 26b.

A cooling water inlet/outlet is provided on one end side in the stacking direction. The cooling water inlet/outlet is connected to the connection hole 112A or the connection hole 112C of the flow path switching valve 101 via the cooling water flow path member 180, respectively.

The refrigerant-hot water heat exchanger 29 is formed by alternately stacking a second refrigerant circulation section (not shown) in which the refrigerant circulates and a second cooling water circulation section (not shown) in which the cooling water circulates. The refrigerant-hot water heat exchanger 29 is arranged in parallel with the cooling water-refrigerant heat exchanger 26 so that the stacking direction is the same.

The refrigerant-hot water heat exchanger 29 performs heat exchange between the refrigerant in the refrigeration cycle circuit 20 and hot water, and heats the hot water using the heat of the refrigerant. That is, in the refrigerant-hot water heat exchanger 29, the cooling water is cooled by heat exchange with the refrigerant. The hot water heated by the refrigerant-hot water heat exchanger 29 is used to heat the air used for air conditioning. The refrigerant-hot water heat exchanger 29 has a refrigerant inlet 29a, a refrigerant outlet (not shown), a cooling water inlet 29c, and a cooling water outlet 29d.

The coolant inlet 29a is provided on the other end side opposite to the bracket 170B in the stacking direction. Refrigerant compressed by the electric compressor 21 is supplied from the refrigerant inlet 29a. A coolant outlet is provided on one end side in the stacking direction. From the refrigerant outlet, the refrigerant that is introduced to the refrigerant channel member 37 after heat exchange in the refrigerant-hot water heat exchanger 29 is discharged.

A cooling water inlet 29c and a cooling water outlet 29d are provided on the other end side in the stacking direction. Cooling water that has passed through the outdoor heat exchanger 65 is supplied from the cooling water inlet 29c. Cooling water, which is guided to the heater core 22 after heat exchange in the refrigerant-hot water heat exchanger 29, is discharged from the cooling water outlet 29d.

Flow path switching valve 101 is arranged such that the bottom of housing 110 faces the side surface of cooling water-refrigerant heat exchanger 26 and actuator 160 is positioned farthest from cooling water-refrigerant heat exchanger 26 .

Flow path switching valve 101 is provided so that cooling water can flow between it and cooling water-refrigerant heat exchanger 26 . At least two (here, three) connection holes 112 and communication holes 113 are arranged in a cross shape in the circumferential direction in each valve body housing portion 111 of the flow path switching valve 101 . A pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicularly to the communication hole 113 are arranged parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and on one end side of the stacking direction. , and the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 are connected so that the cooling water can flow therethrough.

The coolant channel member 37 is provided on one end side in the stacking direction. The refrigerant channel member 37 communicates the first refrigerant circulation section and the second refrigerant circulation section between the cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29 . Refrigerant heat-exchanged in the refrigerant-hot water heat exchanger 29 is supplied to the refrigerant channel member 37 .

From the refrigerant channel member 37 , the refrigerant is branched and guided to the cooling water-refrigerant heat exchanger 26 and the evaporator 25 . The refrigerant flow path member 37 includes a variable throttle mechanism 28 that throttles the flow of the refrigerant that flows through the refrigerant flow path member 37 and is led to the cooling water-refrigerant heat exchanger 26, and a pressure sensor 37b that detects the pressure of the refrigerant. , is provided.

Bracket 170A and bracket 170B are plate-like members for mounting heat exchange device 100 on a vehicle.

A cooling water-refrigerant heat exchanger 26 is attached to one plane of the bracket 170A. The coolant channel member 180 and the coolant channel member 37 are attached to the other plane of the bracket 170A. The bracket 170A is provided with a plurality of mounting holes 171A for bolting to the vehicle.

A refrigerant-hot water heat exchanger 29 is attached to one plane of the bracket 170B. A coolant channel member 37 is attached to the other plane of the bracket 170B. The bracket 170B is provided with a plurality of mounting holes 171B for bolting to the vehicle.

The cooling water flow path member 180 constitutes the first cooling water circuit 50 . Since the configuration of the cooling water channel member 180 is different only in shape from the heat exchange device 100 shown in FIGS. 17 to 20, detailed description thereof is omitted here.

As described above, the pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicularly to the communication hole 113 are parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and It is arranged on one end side in the stacking direction, and is connected between the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 so that the cooling water can flow therethrough. In addition, the cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29 are arranged in parallel so that their stacking directions are the same. Also, the cooling water flow path member 180 that constitutes the first cooling water circuit 50 is formed flat in the stacking direction.

As a result, the cooling water flow path is connected by the flat cooling water flow path member 180 at one end in the stacking direction of the cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29. Downsizing of the heat exchange device 100 is possible. Therefore, the layout of the heat exchange device 100 in the vehicle can be improved.

<Modified example of temperature control system>
Next, modifications of the temperature control system 1 to which the heat exchange device 100 is applied will be described with reference to FIGS. 23 to 30B. In the following, differences from the temperature control system 1 shown in FIG. 1 will be mainly described, and components having similar functions will be assigned the same reference numerals and description thereof will be omitted.

First, with reference to FIG. 23, the overall configuration of the temperature control system 1 according to the modification will be described. FIG. 23 is a configuration diagram of the temperature control system 1. As shown in FIG.

The temperature control system 1 is a system mounted on a vehicle (not shown), and air-conditions the interior of the vehicle (not shown), cools a driving motor 2 as a driving system heating element, and cools a storage battery 3. It regulates the temperature. The temperature control system 1 includes an air conditioner 10 and a cooling water circuit 340 through which cooling water circulates.

<Cooling water circuit>
The cooling water circuit 340 includes a first cooling water circuit 50 as a reference loop, a second cooling water circuit 60 as a first loop, a third cooling water circuit 70 as a second loop, and a fourth cooling water circuit 380. , a channel switching valve 101 , and a channel switching valve 201 .

The fourth cooling water circuit 380 has a communication path 381 as a first communication path and a communication path 382 as a second communication path.

The communication path 381 is connected upstream of the flow path switching valve 101 in the third cooling water circuit 70 and between the gas-liquid separator 64 in the second cooling water circuit 60 when the flow path switching valve 201 is switched to the first mode. Connect downstream. Cooling water does not flow through the communication path 381 when the flow path switching valve 201 is switched to the second mode. The communication passage 381 serves as a bypass passage that communicates downstream of the flow path switching valve 101 and downstream of the gas-liquid separator 64 in the second cooling water circuit 60 when the flow path switching valve 201 is switched to the third mode. Configure.

The communication path 382 is downstream of the storage battery heat exchanger 73 in the third cooling water circuit 70 and downstream of the flow switching valve 101 in the second cooling water circuit 60 when the flow switching valve 201 is switched to the first mode. concatenate with Cooling water does not flow through the communication path 382 when the flow path switching valve 201 is switched to the second mode. The communication passage 382 serves as a bypass passage that communicates the downstream of the flow switching valve 101 and the downstream of the gas-liquid separator 64 in the second cooling water circuit 60 when the flow switching valve 201 is switched to the third mode. Configure.

The channel switching valve 201 is a rotary valve that includes a pair of valve bodies 120 and a housing 210 that rotatably accommodates the valve bodies 120 . The flow path switching valve 201 has a first mode that connects the downstream of the storage battery heat exchanger 73 in the third cooling water circuit 70 and the downstream of the drive system heat exchanger 63 in the second cooling water circuit 60, and the third cooling water A second mode in which the downstream of the storage battery heat exchanger 73 in the circuit 70 and the flow path switching valve 101 are connected, and a downstream of the storage battery heat exchanger 73 in the third cooling water circuit 70 and the flow path switching valve 101 are connected. , and a third mode in which the downstream of the gas-liquid separator 64 in the second cooling water circuit 60 and the upstream of the flow path switching valve 101 in the second cooling water circuit 60 are connected. A specific configuration of the flow path switching valve 201 will be described later in detail with reference to FIGS. 28A to 30B.

<Each operation mode>
Next, each operation mode of the temperature control system 1 will be described with reference to FIGS. 24 to 27. FIG. In FIGS. 24 to 27, thick solid lines indicate portions through which the cooling water flows, and thin solid lines indicate portions where the cooling water stops flowing. 24 to 27, since the refrigeration cycle circuit 20 may be operable in a plurality of operation modes, flow and stop of refrigerant in a specific operation mode are not illustrated.

This temperature control system 1 can operate in the same operation modes (first operation mode, second operation mode, third operation mode, and fourth operation mode) as the temperature control system 1 shown in FIG. Here, description of the operation modes described in the temperature control system 1 shown in FIG. 1 is omitted.

<Fifth driving mode>
FIG. 24 is a diagram illustrating the case where the temperature control system 1 is operated in the fifth operation mode.

In the cooling water circuit 340, the channel switching valve 101 is switched to the second mode, the first cooling water circuit 50 and the third cooling water circuit 70 are connected, and the second cooling water circuit 60 is independent. Also, the channel switching valve 201 is switched to the first mode.

At this time, the refrigerating cycle circuit 20 is operated in the cooling mode, the cooling/storage battery cooling mode, or the heating mode.

In the cooling water circuit 340, the electric pumps 61 and 71 operate to circulate the cooling water.

Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has risen due to heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is led to the outdoor heat exchanger 65 . At this time, the cooling water that has passed through the drive system heat exchanger 63 joins the cooling water from the third cooling water circuit 70 and is led to the outdoor heat exchanger 65, as will be described later.

In the outdoor heat exchanger 65, the cooling water is cooled by heat exchange with the outside air. The cooling water cooled by the outdoor heat exchanger 65 is branched after passing through the gas-liquid separator 64, and part of it is guided to the communication path 381 to switch the flow path switching valve 201 and the flow path switching valve 101. It passes through and is led to the cooling water-refrigerant heat exchanger 26 of the first cooling water circuit 50 .

When the refrigerating cycle circuit 20 is operated in the cooling mode, no refrigerant flows through the cooling water-refrigerant heat exchanger 26, so heat exchange between the refrigerant and the cooling water is not performed. When the refrigerating cycle circuit 20 is operated in the cooling/storage battery cooling mode or the heating mode, the temperature of the coolant drops due to heat exchange with the refrigerant. The cooling water that has passed through the cooling water-refrigerant heat exchanger 26 is supplied to the electric pump 71 of the third cooling water circuit 70 . On the other hand, the remaining cooling water branched after passing through the gas-liquid separator 64 is supplied to the electric pump 61 again.

Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . At this time, the electric water heater 72 is not operating. The storage battery heat exchanger 73 exchanges heat with cooling water to cool the storage battery 3 . The cooling water whose temperature has risen due to heat exchange with the storage battery 3 passes through the flow path switching valve 201 and is guided upstream of the outdoor heat exchanger 65 in the second cooling water circuit 60 via the communication passage 382, whereupon the second It merges with the cooling water in the cooling water circuit 60 .

As described above, in the temperature control system 1, the cooling water cooled by the outdoor heat exchanger 65 is used to cool the driving motor 2 and the storage battery 3, and the cooling water-refrigerant heat exchanger 26 is circulated with the refrigerant. In this state, it is possible to cool the storage battery 3 using the cooling water further cooled by the cooling water-refrigerant heat exchanger 26 .

<Sixth driving mode>
FIG. 25 is a diagram illustrating the case where the temperature control system 1 is operated in the sixth operation mode.

In the cooling water circuit 340, the channel switching valve 101 is switched to the second mode, the first cooling water circuit 50 and the third cooling water circuit 70 are connected, and the second cooling water circuit 60 is independent. Also, the channel switching valve 201 is switched to the second mode.

At this time, the refrigerating cycle circuit 20 is operated in the cooling/battery cooling mode or the heating mode.

In the first cooling water circuit 50 and the third cooling water circuit 70, the electric pump 71 operates to circulate the cooling water. Cooling water whose temperature has been lowered by the cooling water-refrigerant heat exchanger 26 is discharged from the electric pump 71 . Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . The electric hot water heater 72 does not operate when the refrigeration cycle circuit 20 is operated in the cooling/storage battery cooling mode. The storage battery heat exchanger 73 exchanges heat with the storage battery 3 to cool the storage battery 3 . The cooling water whose temperature has risen due to heat exchange with the storage battery 3 is guided again to the cooling water-refrigerant heat exchanger 26 via the flow path switching valve 201 and the flow path switching valve 101 . In the cooling water-refrigerant heat exchanger 26, the temperature of the cooling water is lowered by heat exchange with the refrigerant.

The electric hot water heater 72 operates when the refrigeration cycle circuit 20 is operated in the heating mode and the waste heat from the storage battery 3 alone is insufficient for the heating operation. In this case, the electric hot water heater 72 heats the cooling water, and the storage battery heat exchanger 73 heats the cooling water with the waste heat of the storage battery 3 . The heated cooling water is led to the cooling water-refrigerant heat exchanger 26, where heat is absorbed from the cooling water to the refrigerant. As a result, the refrigerating cycle circuit 20 can heat-exchange with the electric hot water heater 72 and utilize the waste heat of the storage battery 3 to perform the heating operation.

On the other hand, in the second cooling water circuit 60, the electric pump 61 operates to circulate the cooling water. Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has risen due to heat exchange with the driving motor 2 is guided to the outdoor heat exchanger 65 . In the outdoor heat exchanger 65, the cooling water is cooled by heat exchange with the outside air. The cooling water cooled by the outdoor heat exchanger 65 passes through the gas-liquid separator 64 and is led to the electric pump 61 again.

Thus, in the temperature control system 1, the cooling water cooled by the cooling water-refrigerant heat exchanger 26 is used to cool the storage battery 3, and the cooling water cooled by the outdoor heat exchanger 65 is used to drive. It is possible to cool the electric motor 2 .

<Seventh driving mode>
FIG. 26 is a diagram illustrating a case where the temperature control system 1 is operated in the seventh operation mode.

In the cooling water circuit 340, the channel switching valve 101 is switched to the third mode, and the first cooling water circuit 50, the second cooling water circuit 60, and the third cooling water circuit 70 are connected. Also, the channel switching valve 201 is switched to the third mode.

At this time, the refrigerating cycle circuit 20 is operated in heating mode.

In the cooling water circuit 340, the electric pumps 61 and 71 operate to circulate the cooling water.

Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has increased due to heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is supplied to the electric pump 71 .

Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . The electric hot water heater 72 operates when the waste heat from the driving motor 2 and the waste heat from the storage battery 3 are insufficient for the heating operation. The storage battery heat exchanger 73 exchanges heat with cooling water to cool the storage battery 3 . The cooling water whose temperature has been raised by heat exchange with the storage battery 3 passes through the channel switching valve 201 and the channel switching valve 101 and is led to the cooling water-refrigerant heat exchanger 26 . In the cooling water-refrigerant heat exchanger 26, the temperature of the cooling water is lowered by heat exchange with the refrigerant. The cooling water whose temperature has been lowered in the cooling water-refrigerant heat exchanger 26 is guided to the communication path 381 via the flow path switching valve 101 , the communication path 382 and the flow path switching valve 201 . The cooling water guided to the communication passage 381 is guided to the second cooling water circuit 60 and supplied to the electric pump 61 again.

Thus, the temperature control system 1 uses the waste heat of the drive motor 2 and the storage battery 3 without cooling water flowing through the outdoor heat exchanger 65, and if necessary, the electric water heater 72 By heating the cooling water by , the temperature of the cooling water led to the cooling water-refrigerant heat exchanger 26 rises. As a result, the refrigeration cycle circuit 20 can operate in the heating mode even when the outside air temperature is low and the outdoor heat exchanger 65 cannot absorb heat from the outside air.

<Eighth operation mode>
FIG. 27 is a diagram illustrating a case where the temperature control system 1 is operated in the eighth operation mode.

In the cooling water circuit 340, the channel switching valve 101 is switched to the first mode, the first cooling water circuit 50 and the second cooling water circuit 60 are connected, and the third cooling water circuit 70 is independent. Also, the channel switching valve 201 is switched to the first mode.

At this time, the refrigerating cycle circuit 20 is operated in the cooling mode or the dehumidifying heating mode.

In the cooling water circuit 340, the electric pumps 61 and 71 operate to circulate the cooling water.

Cooling water discharged from the electric pump 61 is guided to the drive system heat exchanger 63 . The drive system heat exchanger 63 exchanges heat with the drive motor 2 to cool the drive motor 2 . The cooling water whose temperature has increased due to heat exchange with the drive motor 2 passes through the flow path switching valve 101 and is led to the cooling water-refrigerant heat exchanger 26 of the first cooling water circuit 50 .

When the refrigerating cycle circuit 20 is operated in the cooling mode, no refrigerant flows through the cooling water-refrigerant heat exchanger 26, so heat exchange between the refrigerant and the cooling water is not performed. When the refrigerating cycle circuit 20 is operated in the dehumidifying heating mode, the temperature of the cooling water decreases due to heat exchange with the refrigerant. The cooling water that has passed through the cooling water-refrigerant heat exchanger 26 joins the cooling water from the third cooling water circuit 70 and is led to the outdoor heat exchanger 65, as will be described later.

In the outdoor heat exchanger 65, the cooling water is cooled by heat exchange with the outside air. The cooling water cooled by the outdoor heat exchanger 65 is branched after passing through the gas-liquid separator 64, and part of it is guided to the communication path 381 to switch the flow path switching valve 201 and the flow path switching valve 101. It passes through and is led to the electric pump 71 of the third cooling water circuit 70, and the remainder is supplied to the electric pump 61 again.

Cooling water discharged from the electric pump 71 is guided to an electric water heater 72 and a storage battery heat exchanger 73 . At this time, the electric water heater 72 is not operating. The storage battery heat exchanger 73 exchanges heat with cooling water to cool the storage battery 3 . The cooling water whose temperature has risen due to heat exchange with the storage battery 3 passes through the flow path switching valve 201 and is guided upstream of the outdoor heat exchanger 65 in the second cooling water circuit 60 via the communication passage 382, whereupon the second It merges with the cooling water in the cooling water circuit 60 .

As described above, in the temperature control system 1 , the outdoor heat exchanger 65 absorbs heat from the outside air into the cooling water, and the drive system heat exchanger 63 heats the cooling water with waste heat from the drive motor 2 . The heated cooling water is led to the cooling water-refrigerant heat exchanger 26, where heat is absorbed from the cooling water to the refrigerant. As a result, the refrigeration cycle circuit 20 can absorb heat from the outside air and utilize the waste heat of the drive motor 2 to perform the dehumidifying and heating operation. Moreover, in the temperature control system 1 , the cooling water cooled by the outdoor heat exchanger 65 can be used to cool the storage battery 3 .

<Each mode of flow switching valve>
Next, the first mode, second mode, and third mode of the flow path switching valve 201 will be described with reference to FIGS. 28A to 30B.

First, the configuration of the flow path switching valve 201 will be described with reference to FIGS. 28A and 28B. FIG. 28A is a diagram explaining the operation of the transmission mechanism 140 when the flow path switching valve 201 is switched to the first mode. FIG. 28B is a cross-sectional view of flow path switching valve 201 switched to the first mode. 14A and 14B, the points different from those of the flow path switching valve 101 shown in FIGS. 14A and 14B will be mainly described.

The channel switching valve 201 is a rotary valve that includes a pair of valve bodies 120 , a housing 210 that rotatably accommodates the valve bodies 120 , and a transmission mechanism 140 .

As shown in FIG. 28B, housing 210 accommodates a pair of valve bodies 120 . The housing 210 has a pair of valve housing portions 111 , a plurality of (here, four) connection holes 112 , and a communication hole 113 . The housing 210 is obtained by plugging two of the six connection holes 112 of the housing 110 shown in FIG.

The valve body accommodating portion 111 is a cylindrical space in which the valve body 120 is rotatably arranged. The valve body housing portion 111 has a valve body housing portion 111A that houses one valve body 120A and a valve body housing portion 111B that houses the other valve body 120B. One connection hole 112 and one communication hole 113 are arranged so as to cross each other in the circumferential direction in one valve housing portion 111A. In the other valve housing portion 111B, three connection holes 112 and three communication holes 113 are arranged in a cross shape in the circumferential direction.

The connection hole 112 includes a connection hole 112A as a first connection hole provided so as to intersect the communication hole 113 in the valve housing portion 111A on one side, and a second connection hole provided to sandwich the valve body 120B on the other side. and a connection hole 112C as a third connection hole, and a connection hole 112D as a fourth connection hole positioned on an extension line of the communication hole 113 in the other valve housing portion 111B.

112 A of connection holes and the communication hole 113 are provided in the valve body accommodating part 111A at intervals of 90 degree|times in the circumferential direction. That is, the connection hole 112A and the communication hole 113 are provided in directions perpendicular to each other. A connection hole 112B, a connection hole 112C, a connection hole 112D, and a communication hole 113 are provided in order at intervals of 90 degrees in the circumferential direction in the valve body accommodating portion 111B. That is, the connection holes 112B and 112C are provided on the same straight line, the connection holes 112D and the communication hole 113 are provided on the same straight line, and these straight lines cross each other at right angles.

The connection hole 112A is connected downstream of the gas-liquid separator 64 in the second cooling water circuit 60 via the communication path 381 . The connection hole 112</b>B is connected upstream of the flow path switching valve 101 in the third cooling water circuit 70 . The connection hole 112</b>C is connected to the communication path 382 . The connection hole 112</b>D is connected downstream of the storage battery heat exchanger 73 in the third cooling water circuit 70 .

The communication hole 113 allows communication between the respective valve body accommodating portions 111 . The communication hole 113 opens to the inner peripheral surface of the valve housing portion 111 .

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120 with the center of rotation interposed therebetween. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages. Not limited to this, the valve body 120 is not limited to a pair of intra-valve passages, and at least one intra-valve passage may be defined inside.

Thus, the flow path switching valve 201 is provided with a pair of valve bodies 120 rotatable around the center of rotation, and a housing 210 that houses the pair of valve bodies 120 . The valve housing portion 111 communicates with the valve housing portion 111 through the communication hole 113 . Therefore, by rotating each of the pair of valve bodies 120, the plurality of connection holes 112 can be directly connected through the intra-valve passages (the one side passage 121 and the other side passage 122) defined in the valve bodies 120, It is possible to connect a plurality of connection holes 112 via the intra-valve passages (the one-side passage 121 and the other-side passage 122) and the communication holes 113, and to switch between many modes. Therefore, it is possible to provide the flow path switching valve 201 that is capable of switching between many modes with a simple configuration.

A pair of valve bodies 120 are rotationally driven together by a single actuator 160 (see FIG. 12). This makes it possible to rotationally drive the valve body 120 with a simple configuration, and eliminates the need for coordinated control when driven by separate actuators. Valve body 120A is switched between a first position, a second position and a third position by actuator 160 . Valve body 120B is switched between a first position and a second position by actuator 160 .

As shown in FIG. 28A, the transmission mechanism 140 has a drive gear 141, a first driven gear 142, and a second driven gear 143. As shown in FIG.

Drive gear 141 is connected to the output shaft of actuator 160 . Drive gear 141 is rotated by the driving force of actuator 160 . The drive gear 141 meshes with the first driven gear 142 and the second driven gear 143 . The 1st driven gear 142 is connected with the rotating shaft of 120 A of one valve bodies. The first driven gear 142 rotates as the driving gear 141 rotates. The second driven gear 143 is connected to the rotating shaft of the other valve body 120B. The second driven gear 143 rotates as the drive gear 141 rotates.

Next, the first mode of the flow path switching valve 201 will be described with reference to FIGS. 28A and 28B.

As shown in FIG. 28A, in the transmission mechanism 140, the teeth 141a of the drive gear 141 and the teeth 142a of the first driven gear 142 are meshed, and the teeth 141a of the drive gear 141 and the teeth 143a of the second driven gear 143 are engaged. are engaged.

At this time, as shown in FIG. 28B, the other side passage 122 of the valve body 120A communicates the connection hole 112A and the communication hole 113, and the one side passage 121 is blocked. In the valve body 120B, the one side passage 121 communicates the connection hole 112B and the communication hole 113, and the other side passage 122 communicates the connection hole 112C and the connection hole 112D. At this time, the connection hole 112A and the connection hole 112B communicate with each other through the other side passage 122 of the valve body 120A, the communication hole 113, and the one side passage 121 of the valve body 120B. The positions of the valve body 120A and the valve body 120B at this time are both in the first position.

Next, the second mode of the flow path switching valve 201 will be described with reference to FIGS. 29A and 29B. FIG. 29A is a diagram explaining the operation of the transmission mechanism 140 when the flow path switching valve 201 is switched to the second mode. FIG. 29B is a cross-sectional view of flow path switching valve 201 switched to the second mode.

When the actuator 160 is operated from the state shown in FIGS. 28A and 28B to rotate the drive gear 141 clockwise, the first driven gear 142 and the second driven gear 143 rotate counterclockwise 90 degrees, and the state shown in FIG. 29A becomes the state shown in . At this time, the valve body 120A rotates counterclockwise 90 degrees together with the first driven gear 142, and the valve body 120B rotates counterclockwise 90 degrees together with the second driven gear 143, resulting in the state shown in FIG. 29B.

As shown in FIG. 29A, in the transmission mechanism 140, the teeth 141a of the driving gear 141 and the teeth 142a of the first driven gear 142 mesh with each other, whereas the teeth 141a of the driving gear 141 mesh with the teeth 142a of the second driven gear 143. It does not mesh with the tooth 143a. The driving gear 141 and the second driven gear 143 are in contact with each other at surfaces 141b and 143b on which the teeth 141a and 143a are not formed.

At this time, as shown in FIG. 29B, the one side passage 121 of the valve body 120A blocks the connection hole 112A, and the other side passage 122 blocks the connection hole 112C. In the valve body 120B, the one side passage 121 communicates the connection hole 112C and the communication hole 113, and the other side passage 122 communicates the connection hole 112B and the connection hole 112D. The positions of the valve body 120A and the valve body 120B at this time are both at the second position.

Next, the third mode of the flow path switching valve 201 will be described with reference to FIGS. 30A and 30B. FIG. 30A is a diagram explaining the operation of the transmission mechanism 140 when the flow path switching valve 201 is switched to the third mode. FIG. 30B is a cross-sectional view of flow path switching valve 201 switched to the third mode.

When the actuator 160 is actuated from the state shown in FIGS. 29A and 29B to further rotate the driving gear 141 clockwise, the first driven gear 142 rotates counterclockwise 90 degrees to the state shown in FIG. 30A. . At this time, the valve body 120A also rotates 90 degrees counterclockwise together with the first driven gear 142, resulting in the state shown in FIG. 30B.

As shown in FIG. 30A, in the transmission mechanism 140, the teeth 141a of the drive gear 141 and the teeth 142a of the first driven gear 142 are meshed with each other, whereas the teeth 141a of the drive gear 141 and the second driven gear 143 are meshed. It does not mesh with the tooth 143a. Since the driving gear 141 and the second driven gear 143 are in contact with each other at the surfaces 141b and 143b on which the teeth 141a and 143a are not formed, the driving gear 141 does not rotate even if the driving gear 141 rotates.

When the drive gear 141 is rotated counterclockwise from this state, the teeth 141a of the drive gear 141 and the teeth 143a of the second driven gear 143 mesh again, and the second driven gear 143 can be rotated clockwise. can.

At this time, as shown in FIG. 30B, the other side passage 122 of the valve body 120A allows the connection hole 112A and the communication hole 113 to communicate with each other, and the one side passage 121 is blocked. In the valve body 120B, the one side passage 121 communicates the connection hole 112C and the communication hole 113, and the other side passage 122 communicates the connection hole 112B and the connection hole 112D. At this time, the connection hole 112A and the connection hole 112C communicate with each other through the other side passage 122 of the valve body 120A, the communication hole 113, and the one side passage 121 of the valve body 120B. The position of the valve body 120A at this time is the third position, and the position of the valve body 120B remains at the second position.

By operating the transmission mechanism 140 as described above, even when a single actuator 160 is used, the valve disc 120B is switched between the first position and the second position, and the valve disc 120A is switched between the first position and the second position. position and the third position, and the channel switching valve 201 can be switched between the first mode, the second mode, and the third mode.

<Example of flow path switching valve>
Next, each embodiment of the flow path switching valve 101 will be described with reference to FIGS. 31 to 56. FIG.

<First embodiment>
First, the flow path switching valve 101 according to the first embodiment will be described with reference to FIG. 31 . FIG. 31 is a configuration diagram of the flow path switching valve 101 according to the first embodiment.

As shown in FIG. 31 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. A connection hole 112C as a connection hole, a connection hole 112D as a fourth connection hole, and a connection hole 112E as a fifth connection hole provided so as to sandwich one valve body 120A and the other valve body 120B and a sixth connection and a connection hole 112F as a hole.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit.

The communication hole 113 allows communication between the respective valve body accommodating portions 111 .

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120 with the center of rotation interposed therebetween. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages.

In the state shown in FIG. 31, the first circuit, the third circuit, and the second circuit are connected in order (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the second circuit and the third circuit are connected and the first circuit becomes independent (second mode). . From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the first circuit and the second circuit are connected and the third circuit becomes independent (first mode). From this state, if the valve body 120B is rotated counterclockwise by 90 degrees without rotating the valve body 120A, the first circuit, the second circuit, and the third circuit are not connected to each other, and all become independent (second circuit). 4 modes).

<Second embodiment>
Next, a flow path switching valve 101 according to a second embodiment will be described with reference to FIG. 32 . FIG. 32 is a configuration diagram of the flow path switching valve 101 according to the second embodiment.

As shown in FIG. 32 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 . Since the configurations of the connection hole 112 and the communication hole 113 are the same as those of the first embodiment, description thereof is omitted here.

The connection hole 112E and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the first embodiment, the description is omitted here.

In the state shown in FIG. 32, the first circuit and the second circuit are connected, and the third circuit is independent (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit, the second circuit and the third circuit are connected in order (second mode). From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the first circuit, the third circuit, and the second circuit are connected in order (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the third circuit are connected, and the second circuit becomes independent (fourth mode). .

<Third embodiment>
Next, a flow path switching valve 101 according to a third embodiment will be described with reference to FIG. 33 . FIG. 33 is a configuration diagram of the flow path switching valve 101 according to the third embodiment.

As shown in FIG. 33 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 . Since the configurations of the connection hole 112 and the communication hole 113 are the same as those of the first embodiment, description thereof is omitted here.

The connection hole 112E and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

A one-side passage 121 and an other-side passage 122 are defined inside the valve body 120A with the center of rotation interposed therebetween. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages.

The valve body 120B has one side passage 121 and the other side passage 122 facing each other across the center of rotation, and a plurality of (three) connection holes provided in parallel with the one side passage 121 and the other side passage 122 in the circumferential direction. 112 and a communication passage 126 for connecting two adjacent ones of the communication holes 113 are defined inside. The one-side passage 121, the other-side passage 122, and the communication passage 126 correspond to the intra-valve passage.

In the state shown in FIG. 33, the first circuit and the second circuit are connected, and the third circuit is cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit, the second circuit, and the third circuit are all cut off (second mode). . From this state, when the valve body 120A is rotated 90 degrees counterclockwise without rotating the valve body 120B, the first circuit and the third circuit are connected, and the second circuit is cut off (third mode ). From this state, when both the valve bodies 120A and 120B are rotated counterclockwise by 90 degrees, the third circuit becomes independent and both the first and second circuits are shut off (fourth mode). From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the second circuit becomes independent and both the first circuit and the third circuit are shut off (fifth mode).

<Fourth embodiment>
Next, a flow path switching valve 101 according to a fourth embodiment will be described with reference to FIG. 34 . FIG. 34 is a configuration diagram of the flow path switching valve 101 according to the fourth embodiment.

As shown in FIG. 34, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. A connection hole 112C as a connection hole, a connection hole 112D as a fourth connection hole, and a connection hole 112E as a fifth connection hole that is positioned on an extension line of the communication hole 113 and communicates with one valve housing portion 111A. have.

The connection hole 112D is connected to the first circuit. The connection hole 112C is connected to the second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit. The connection hole 112A is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the first embodiment, the description is omitted here.

In the state shown in FIG. 34, the second circuit, the third circuit, and the fourth circuit are connected in order, and the first circuit is cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit, the third circuit, and the fourth circuit are connected in order, and the second circuit is cut off. be. From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the second circuit and the fourth circuit are connected in order, the third circuit becomes independent, and the first circuit is cut off. (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the fourth circuit are connected in order, the third circuit becomes independent, and the second circuit is connected. is blocked (fourth mode).

<Fifth embodiment>
Next, a flow path switching valve 101 according to a fifth embodiment will be described with reference to FIG. FIG. 35 is a configuration diagram of the flow path switching valve 101 according to the fifth embodiment.

As shown in FIG. 35 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole which are provided so as to sandwich the valve body 120A on one side, and a connection hole 112F in the other valve body accommodating portion 111. A connection hole 112D as a third connection hole provided so as to intersect, a connection hole 112E as a fourth connection hole provided so as to sandwich the valve body 120A on one side and the valve body 120B on the other side, and a connection hole 112E as a fifth connection hole and a connection hole 112F.

The connection hole 112D is connected to the first circuit. The connection hole 112A is connected to the second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit. The connection hole 112F is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the first embodiment, the description is omitted here.

In the state shown in FIG. 35, the first circuit and the fourth circuit are connected in order, and both the second circuit and the third circuit are cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit is cut off. (second mode). From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the first circuit and the fourth circuit are connected, the third circuit becomes independent, and the second circuit is cut off. (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the second circuit are connected, the third circuit becomes independent, and the fourth circuit opens. blocked (fourth mode).

<Sixth embodiment>
Next, a flow path switching valve 101 according to a sixth embodiment will be described with reference to FIG. FIG. 36 is a configuration diagram of the flow path switching valve 101 according to the sixth embodiment.

As shown in FIG. 36, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , multiple (four) connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole which are provided so as to sandwich the valve body 120A on one side, and a communication hole 113 in the valve body accommodating portion 111 on the other side. A connection hole 112D as a third connection hole provided so as to intersect, and a connection hole 112E as a fourth connection hole provided so as to intersect the connection holes 112A and 112B in one valve housing portion 111. , have

The connection hole 112D is connected to the first circuit. The connection hole 112A is connected to the second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the first embodiment, the description is omitted here.

In the state shown in FIG. 36, the third circuit is independent, and both the first and second circuits are cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the second circuit are connected and the third circuit becomes independent (second mode). From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the first circuit, the second circuit, and the third circuit are all cut off (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit, the third circuit and the second circuit are connected in order (fourth mode).

<Seventh embodiment>
Next, a flow path switching valve 101 according to a seventh embodiment will be described with reference to FIG. FIG. 37 is a configuration diagram of the flow path switching valve 101 according to the seventh embodiment.

As shown in FIG. 31 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , multiple (four) connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. It has a connection hole 112C as a connection hole and a connection hole 112D as a fourth connection hole.

The connection hole 112D is connected to the first circuit. The connection hole 112C is connected to the second circuit. The connection hole 112B is connected to the third circuit. The connection hole 112A is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the first embodiment, the description is omitted here.

In the state shown in FIG. 37, the second circuit and the third circuit are connected in order, and both the first circuit and the fourth circuit are cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the third circuit are connected in order, and both the second circuit and the fourth circuit are connected. blocked (second mode). From this state, when both the valve body 120A and the valve body 120B are rotated counterclockwise by 90 degrees, the second circuit and the fourth circuit are connected in order, and both the first circuit and the third circuit are cut off. (third mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the fourth circuit are connected in order, and both the second circuit and the third circuit are connected. blocked (fourth mode).

<Eighth embodiment>
Next, with reference to FIG. 38, a channel switching valve 101 according to an eighth embodiment will be described. FIG. 38 is a configuration diagram of the flow path switching valve 101 according to the eighth embodiment.

As shown in FIG. 38, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. A connection hole 112C as a connection hole and a connection hole 112D as a fourth connection hole, and a connection hole as a fifth connection hole provided so as to intersect the connection hole 112C and the connection hole 112D in the other valve housing portion 111B. 112F and. In this manner, at least two connection holes 112 and communication holes 113 are arranged in each valve housing portion 111 so as to form a cross shape in the circumferential direction.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112C is connected to the second circuit. The connection hole 112A and the connection hole 112B are connected by a third circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

The valve body 120 defines therein a T-shaped passage 124 that connects three adjacent portions of the cross-shaped connection hole 112 and communication hole 113 in a T-shape. This T-shaped passage 124 corresponds to an intra-valve passage.

In the state shown in FIG. 38, the first circuit and the third circuit are independent, and the second circuit is cut off (first mode). The same is true when the valve body 120B is rotated 180 degrees from this state. From the state shown in FIG. 38, when the valve body 120A is rotated clockwise by 90 degrees or 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the first circuit, the second circuit, and the third circuit are blocked (second mode). From the state shown in FIG. 38, when the valve body 120A is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the third circuit are connected to the first circuit. is blocked (third mode). When the valve body 120A is not rotated or is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 90 degrees from the state shown in FIG. The circuits are independent (fourth mode). When the valve body 120A is rotated clockwise by 90 degrees or 270 degrees without rotating the valve body 120B from the state shown in FIG. 38, the first circuit becomes independent, and the second circuit and the third circuit are cut off. (fifth mode). From the state shown in FIG. 38, when the valve body 120A is not rotated or rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the third circuit becomes independent from the first circuit. The second circuit is cut off (sixth mode). From the state shown in FIG. 38, when the valve body 120A is rotated clockwise by 90 degrees or 270 degrees and the valve body 120B is rotated clockwise by 90 degrees, the first circuit and the second circuit are connected to form the third circuit. is blocked (seventh mode).

<Ninth embodiment>
Next, a flow path switching valve 101 according to a ninth embodiment will be described with reference to FIG. FIG. 39 is a configuration diagram of the flow path switching valve 101 according to the ninth embodiment.

As shown in FIG. 39, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 . Since the configurations of the connection hole 112 and the communication hole 113 are the same as those of the eighth embodiment, description thereof is omitted here.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected to the second circuit. The connection hole 112B is connected to the third circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 39, the second circuit and the third circuit are connected and the first circuit is independent (first mode). When the valve body 120A is rotated clockwise by 90 degrees or 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees from the state shown in FIG. are blocked (second mode). From the state shown in FIG. 39, when the valve body 120A is not rotated or is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the third circuit are connected. , the first circuit is interrupted (third mode). From the state shown in FIG. 39, when the valve body 120A is not rotated or is rotated 180 degrees clockwise and the valve body 120B is rotated 90 degrees clockwise, the first circuit, the second circuit, and the third circuit are all concatenated (fourth mode). From the state shown in FIG. 39, when the valve body 120A is rotated clockwise by 90 degrees or 270 degrees and the valve body 120B is rotated clockwise by 90 degrees, the first circuit and the second circuit are connected, and the third circuit is blocked (fifth mode).

<Tenth embodiment>
Next, with reference to FIG. 40, the channel switching valve 101 according to the tenth embodiment will be described. FIG. 40 is a configuration diagram of the flow path switching valve 101 according to the tenth embodiment.

As shown in FIG. 40 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 . Since the configurations of the connection hole 112 and the communication hole 113 are the same as those of the eighth embodiment, description thereof is omitted here.

The connection hole 112D is connected to the first circuit. The connection hole 112F is connected to the second circuit. The connection hole 112A and the connection hole 112C are connected to the third circuit. The connection hole 112B is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 40, the first circuit and the second circuit are connected, and the third circuit and the fourth circuit are connected (first mode). When the valve body 120A is rotated 270 degrees clockwise and the valve body 120B is rotated 270 degrees clockwise from the state shown in FIG. circuit is interrupted (second mode). When the valve body 120A is not rotated or rotated clockwise by 180 degrees and the valve body 120B is not rotated or rotated clockwise by 90 degrees from the state shown in FIG. circuit is connected and the first circuit is cut off (third mode). When the valve body 120A is rotated clockwise by 270 degrees and the valve body 120B is rotated clockwise by 90 degrees from the state shown in FIG. The circuit is interrupted (fourth mode). When the valve body 120A is rotated 90 degrees clockwise from the state shown in FIG. 40 without rotating the valve body 120B, the first circuit, the second circuit, and the fourth circuit are connected, and the third circuit is cut off. (fifth mode). From the state shown in FIG. 40, when the valve body 120A is not rotated or is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 270 degrees, the first circuit, the third circuit, and the fourth circuit are connected. and the second circuit is cut off (sixth mode). When the valve body 120A is rotated clockwise by 270 degrees and the valve body 120B is rotated clockwise by 180 degrees from the state shown in FIG. 40, the second circuit and the third circuit are connected, and the first circuit and the fourth circuit are connected. circuit is cut off (seventh mode). When the valve body 120A is not rotated or is rotated 180 degrees clockwise from the state shown in FIG. 40 and the valve body 120B is rotated 180 degrees clockwise, the second circuit, the third circuit, and the fourth circuit are connected. and the first circuit is cut off (eighth mode).

<Eleventh embodiment>
Next, a flow path switching valve 101 according to an eleventh embodiment will be described with reference to FIG. FIG. 41 is a configuration diagram of the flow path switching valve 101 according to the eleventh embodiment.

As shown in FIG. 41 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (five) of connection holes 112 and a single communication hole 113 . Since the configurations of the connection hole 112 and the communication hole 113 are the same as those of the eighth embodiment, description thereof is omitted here.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112C is connected to the second circuit. The connection hole 112B is connected to the third circuit. The connection hole 112A is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 41, the third circuit and the fourth circuit are connected, the first circuit is independent, and the second circuit is cut off (first mode). From the state shown in FIG. 41, when the valve body 120A is rotated clockwise by 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the fourth circuit are connected to the first circuit. and the third circuit are cut off (second mode). From the state shown in FIG. 41, when the valve body 120A is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit, the third circuit, and the fourth circuit are connected. , the first circuit is interrupted (third mode). From the state shown in FIG. 41, when the valve body 120A is rotated clockwise by 90 degrees or 270 degrees and the valve body 120B is rotated clockwise by 90 degrees, the first circuit and the second circuit are connected to form the third circuit. and the fourth circuit are cut off (fourth mode). When the valve body 120A is rotated 270 degrees clockwise from the state shown in FIG. 41 without rotating the valve body 120B, the first circuit and the fourth circuit are connected, and the second circuit and the third circuit are connected. blocked (fifth mode). When the valve body 120A is rotated 90 degrees clockwise from the state shown in FIG. 41 without rotating the valve body 120B, the first circuit and the third circuit are connected, and the second circuit and the fourth circuit are connected. blocked (sixth mode). From the state shown in FIG. 41, when the valve body 120A is rotated clockwise by 90 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the third circuit are connected to the first circuit. and the fourth circuit are cut off (seventh mode). When the valve body 120A is not rotated or is rotated clockwise by 90 degrees and the valve body 120B is rotated clockwise by 90 degrees from the state shown in FIG. The circuit and the fourth circuit are connected (eighth mode).

<Twelfth embodiment>
Next, a flow path switching valve 101 according to a twelfth embodiment will be described with reference to FIG. FIG. 42 is a configuration diagram of a flow path switching valve 101 according to a twelfth embodiment.

As shown in FIG. 42 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, and a third circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. A connection hole 112C as a connection hole, a connection hole 112D as a fourth connection hole, and a connection hole 112E as a fifth connection hole provided so as to sandwich one valve body 120A and the other valve body 120B and a sixth connection and a connection hole 112F as a hole.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit.

The communication hole 113 allows communication between the respective valve body accommodating portions 111 .

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 42, the first circuit and the third circuit are independent of each other, and the second circuit is cut off (first mode). When the valve body 120A is rotated clockwise by 180 degrees or 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees from the state shown in FIG. 3 circuits are cut off (second mode). When the valve body 120A is rotated 180 degrees or 270 degrees clockwise from the state shown in FIG. 42 without rotating the valve body 120B, the first circuit becomes independent, and the second circuit and the third circuit are cut off. (third mode). When the valve body 120B is rotated 90 degrees clockwise from the state shown in FIG. 42 without rotating the valve body 120A, the first circuit, the second circuit, and the third circuit are all connected (fourth mode ). From the state shown in FIG. 42, when the valve body 120A is rotated clockwise by 90 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the third circuit becomes independent, and the first circuit and the second circuit is blocked (fifth mode).

<Thirteenth embodiment>
Next, a flow path switching valve 101 according to a thirteenth embodiment will be described with reference to FIG. FIG. 43 is a configuration diagram of a flow path switching valve 101 according to the thirteenth embodiment.

As shown in FIG. 43 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the twelfth embodiment, description thereof is omitted here.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112C is connected to the second circuit. The connection hole 112B and the connection hole 112E are connected by a third circuit. The connection hole 112A is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 43, the third circuit and the fourth circuit are connected, the first circuit is independent, and the second circuit is cut off (first mode). From the state shown in FIG. 43, when the valve body 120A is rotated clockwise by 180 degrees or 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the fourth circuit are connected, The first circuit and the third circuit are cut off (second mode). When the valve body 120A is rotated 90 degrees clockwise and the valve body 120B is rotated 90 degrees clockwise from the state shown in FIG. 43, the first circuit and the second circuit are connected, and the third circuit becomes independent. , the fourth circuit is switched off (third mode). When the valve body 120B is rotated 90 degrees clockwise from the state shown in FIG. 43 without rotating the valve body 120A, the first circuit and the second circuit are connected, and the third circuit and the fourth circuit are connected. concatenated (fourth mode). From the state shown in FIG. 43, when the valve body 120A is rotated clockwise by 180 degrees or 270 degrees and the valve body 120B is rotated clockwise by 90 degrees, the first circuit and the second circuit are connected to form the third circuit. and the fourth circuit are cut off (fifth mode). When the valve body 120A is rotated 90 degrees clockwise from the state shown in FIG. 43 without rotating the valve body 120B, the first circuit and the third circuit are connected, and the second circuit and the fourth circuit are connected. blocked (sixth mode). When the valve body 120A is rotated clockwise by 180 degrees or 270 degrees without rotating the valve body 120B from the state shown in FIG. circuit is cut off (seventh mode). From the state shown in FIG. 43, when the valve body 120A is rotated clockwise by 90 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the third circuit are connected to the first circuit. and the fourth circuit are cut off (eighth mode). When the valve body 120B is rotated clockwise by 180 degrees or 270 degrees without rotating the valve body 120A from the state shown in FIG. circuit is cut off (ninth mode).

<14th embodiment>
Next, a flow path switching valve 101 according to a fourteenth embodiment will be described with reference to FIG. FIG. 44 is a configuration diagram of a flow path switching valve 101 according to a fourteenth embodiment.

As shown in FIG. 44 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , a plurality (six) of connection holes 112 and a single communication hole 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the twelfth embodiment, description thereof is omitted here.

The connection hole 112D and the connection hole 112F are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B is connected to the third circuit. The connection hole 112E is connected to the fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighth embodiment, description thereof is omitted here.

In the state shown in FIG. 44, the third circuit and the fourth circuit are connected, the first circuit is independent, and the second circuit is cut off (first mode). From the state shown in FIG. 44, when the valve body 120A is rotated clockwise by 270 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the fourth circuit are connected to the first circuit. and the third circuit are cut off (second mode). From the state shown in FIG. 44, when the valve body 120A is rotated clockwise by 180 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the second circuit and the third circuit are connected to the first circuit. and the fourth circuit are cut off (third mode). When the valve body 120A is rotated 90 degrees clockwise from the state shown in FIG. 44 without rotating the valve body 120B, the first circuit, the third circuit, and the fourth circuit are connected, and the second circuit is cut off. (fourth mode). When the valve body 120A is rotated 180 degrees clockwise from the state shown in FIG. 44 without rotating the valve body 120B, the first circuit and the third circuit are connected, and the second circuit and the fourth circuit are connected. blocked (fifth mode). When the valve body 120A is rotated 270 degrees clockwise from the state shown in FIG. 44 without rotating the valve body 120B, the first circuit and the fourth circuit are connected, and the second circuit and the third circuit are connected. blocked (sixth mode). When the valve body 120B is rotated 90 degrees clockwise from the state shown in FIG. 44 without rotating the valve body 120A, the first circuit, the second circuit, the third circuit, and the fourth circuit are all connected. (seventh mode). From the state shown in FIG. 44, when the valve body 120A is rotated clockwise by 90 degrees and the valve body 120B is rotated clockwise by 180 degrees or 270 degrees, the third circuit and the fourth circuit are connected to the first circuit. and the second circuit are cut off (eighth mode).

<Fifteenth embodiment>
Next, a flow path switching valve 101 according to a fifteenth embodiment will be described with reference to FIG. FIG. 45 is a configuration diagram of a flow path switching valve 101 according to a fifteenth embodiment.

As shown in FIG. 45 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , multiple (eight) connection holes 112 and a single communication hole 113 .

The connection hole 112 includes connection holes 112A and 112B as first and second connection holes, connection holes 112C and 112D as third and fourth connection holes, and connection holes 112C and 112D as the third and fourth connection holes provided so as to sandwich one valve body 120A. A connection hole 112E as a fifth connection hole and a connection hole 112F as a sixth connection hole provided to sandwich the body 120B, and a seventh connection provided to sandwich one valve body 120A and the other valve body 120B. It has a connection hole 112G as a hole and a connection hole 112H as an eighth connection hole.

The connection hole 112F and the connection hole 112H are connected by a first circuit. The connection hole 112B and the connection hole 112E are connected by a second circuit. The connection hole 112C and the connection hole 112D are connected by a third circuit. The connection hole 112A and the connection hole 112G are connected by a fourth circuit.

The communication hole 113 allows communication between the respective valve body accommodating portions 111 .

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120A and face each other with the center of rotation interposed therebetween. A closing portion 125 is provided to close two of the plurality of connection holes 112 and communication holes 113 which are provided in a straight line. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120B with the center of rotation interposed therebetween. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages.

In the state shown in FIG. 45, the first circuit and the second circuit are independent of each other, and both the third circuit and the fourth circuit are cut off (first mode). From this state, when the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A, the first circuit and the second circuit are connected in order, and both the third circuit and the fourth circuit are cut off. (second mode). When the valve body 120A is rotated clockwise 60 degrees without rotating the valve body 120B from the state shown in FIG. are blocked together (third mode). When the valve body 120A is rotated clockwise by 60 degrees and the valve body 120B is rotated clockwise by 90 degrees from the state shown in FIG. 45, the third circuit becomes independent, and the first circuit, the second circuit and the fourth circuit is blocked (fourth mode).

<Sixteenth embodiment>
Next, with reference to FIG. 46, a passage switching valve 101 according to a sixteenth embodiment will be described. FIG. 46 is a configuration diagram of a flow path switching valve 101 according to the sixteenth embodiment.

As shown in FIG. 46 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , multiple (eight) connection holes 112 and a single communication hole 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the fifteenth embodiment, description thereof is omitted here.

The connection hole 112F and the connection hole 112H are connected by a first circuit. The connection hole 112B and the connection hole 112E are connected by a second circuit. The connection hole 112C and the connection hole 112D are connected by a third circuit. The connection hole 112A and the connection hole 112G are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

The valve body 120A includes one side passage 121 and the other side passage 122 that face each other across the rotation center, and a central passage 123 that linearly communicates between the one side passage 121 and the other side passage 122 through the rotation center. and have The one-side passage 121, the other-side passage 122, and the central passage 123 correspond to intra-valve passages.

A one-side passage 121 and a second-side passage 122 are defined inside the valve body 120B with the center of rotation interposed therebetween. The one-side passage 121 and the other-side passage 122 correspond to intra-valve passages.

In the state shown in FIG. 46, the second circuit and the fourth circuit are connected in order, and the first circuit and the third circuit are independent of each other (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the third circuit and the fourth circuit are connected in order, and the first circuit and the second circuit are respectively connected. Independent (second mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the second circuit and the third circuit are connected in order, and the first circuit and the fourth circuit are respectively connected. Independent (third mode). When the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. are independent (fourth mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are connected in order. concatenated (fifth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit becomes independent. (sixth mode).

<17th embodiment>
Next, with reference to FIG. 47, a passage switching valve 101 according to a seventeenth embodiment will be described. FIG. 47 is a configuration diagram of a flow path switching valve 101 according to the seventeenth embodiment.

As shown in FIG. 47, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve body accommodating portions 111 , multiple (eight) connection holes 112 and a single communication hole 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the fifteenth embodiment, description thereof is omitted here.

The connection hole 112C and the connection hole 112H are connected by a first circuit. The connection hole 112B and the connection hole 112E are connected by a second circuit. The connection hole 112D and the connection hole 112F are connected by a third circuit. The connection hole 112A and the connection hole 112G are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the structure of the valve body 120 is the same as that of the 16th embodiment, description thereof is omitted here.

In the state shown in FIG. 47, the first circuit, fourth circuit, and third circuit are connected in order, and the second circuit is independent (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the second circuit, and the third circuit are connected in order, and the fourth circuit becomes independent. (second mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are connected in order. concatenated (third mode).

When the valve body 120B is rotated 90 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. 47, the first circuit, the fourth circuit, the third circuit, and the second circuit are connected in order. (fourth mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are respectively connected. Independent (fifth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, the fourth circuit, and the second circuit are connected in order (second 6 modes).

<Eighteenth embodiment>
Next, a flow path switching valve 101 according to an eighteenth embodiment will be described with reference to FIG. FIG. 48 is a configuration diagram of a flow path switching valve 101 according to an eighteenth embodiment.

As shown in FIG. 48, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 .

The connection hole 112 includes a connection hole 112A as a first connection hole and a connection hole 112B as a second connection hole provided so as to sandwich one valve body 120A, and a third connection hole provided so as to sandwich the other valve body 120B. A connection hole 112C as a connection hole, a connection hole 112D as a fourth connection hole, and connection holes 112E as fifth and sixth connection holes provided so as to sandwich one valve body 120A and the other valve body 120B, 112F and connecting holes 112G and 112H as seventh and eighth connecting holes.

The connection hole 112G and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112F are connected by a fourth circuit.

The communication hole 113 has a pair of communication holes 113A and 113B that allow communication between the respective valve body housing portions 111 . Communicating hole 113A and communicating hole 113B are provided in parallel and are opened to each valve housing part 111 side by side in the circumferential direction.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

The valve body 120 has a one-side passage 121 and a second-side passage 122 that face each other across the rotation center, and a central passage that passes through the rotation center and communicates linearly between the one-side passage 121 and the other-side passage 122. 123 are provided. The one-side passage 121, the other-side passage 122, and the central passage 123 correspond to intra-valve passages. Two communication holes 113 are provided, and one side passage 121, the other side passage 122, and the central passage 123 are provided in the valve body 120, so that two connection holes 112 are communicated with each other in the housing 110. two flow paths are formed.

In the state shown in FIG. 48, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are connected in order (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit becomes independent. (second mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, and the second circuit are connected in order, and the third circuit becomes independent. (third mode).

When the valve body 120B is rotated 60 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. are independent (fourth mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the second circuit and the third circuit are connected in order, and the first circuit and the fourth circuit are respectively connected. Independent (fifth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the second circuit, the third circuit, and the fourth circuit are connected in order, and the first circuit becomes independent. (sixth mode).

When the valve body 120B is rotated clockwise 60 degrees without rotating the valve body 120A from the state shown in FIG. Independent (seventh mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit becomes independent. (8th mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are connected in order. concatenated (ninth mode).

<Nineteenth embodiment>
Next, a passage switching valve 101 according to a nineteenth embodiment will be described with reference to FIG. FIG. 49 is a configuration diagram of a flow path switching valve 101 according to a nineteenth embodiment.

As shown in FIG. 49, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112F and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112G are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighteenth embodiment, the description is omitted here.

In the state shown in FIG. 49, the first circuit, second circuit, fourth circuit, and third circuit are connected in order (first mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are independent of each other. (second mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, the second circuit, and the third circuit are connected in order (second 3 modes).

When the valve body 120B is rotated 60 degrees counterclockwise from the state shown in FIG. 49 without rotating the valve body 120A, the second circuit and the fourth circuit are connected in order, and the first circuit and the third circuit and are independent of each other (fourth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, the fourth circuit, and the second circuit are connected in order (second 5 modes). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, the second circuit, and the third circuit are connected in order (second 6 modes).

When the valve body 120B is rotated 60 degrees clockwise from the state shown in FIG. 49 without rotating the valve body 120A, the first circuit, the third circuit, the second circuit, and the fourth circuit are connected in order. (seventh mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, the second circuit, and the fourth circuit are connected in order (second 8 mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the fourth circuit are connected in order, and the second circuit and the third circuit are connected in order. concatenated (ninth mode).

<Twentieth embodiment>
Next, with reference to FIG. 50, a flow path switching valve 101 according to a twentieth embodiment will be described. FIG. 50 is a configuration diagram of a flow path switching valve 101 according to a twentieth embodiment.

As shown in FIG. 50, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112D and the connection hole 112H are connected by a first circuit. The connection hole 112C and the connection hole 112G are connected by a second circuit. The connection hole 112B and the connection hole 112F are connected by a third circuit. The connection hole 112A and the connection hole 112E are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the eighteenth embodiment, the description is omitted here.

In the state shown in FIG. 50, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are connected in order (first mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are independent of each other. (second mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are independent of each other. (third mode).

When the valve body 120B is rotated 60 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. 50, the third circuit and the fourth circuit are connected in order, and the first circuit and the second circuit and are independent of each other (fourth mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the second circuit and the third circuit are connected in order, and the first circuit and the fourth circuit are respectively connected. Independent (fifth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the second circuit and the fourth circuit are connected in order, and the first circuit and the third circuit are respectively connected. Independent (sixth mode).

When the valve body 120B is rotated 60 degrees clockwise without rotating the valve body 120A from the state shown in FIG. are independent of each other (seventh mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are respectively connected. Independent (eighth mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the fourth circuit are connected in order, and the second circuit and the third circuit are respectively connected. Independent (ninth mode).

<21st embodiment>
Next, with reference to FIG. 51, a passage switching valve 101 according to a twenty-first embodiment will be described. FIG. 51 is a configuration diagram of a flow path switching valve 101 according to the twenty-first embodiment.

As shown in FIG. 51 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112G and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112F are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

In the valve body 120, one side passage 121 and the other side passage 122 facing each other across the rotation center are provided, and the one side passage 121 and the other side passage 122 are provided side by side in the circumferential direction. A communication passage 126 is provided for connecting two adjacent ones of them. In other words, the one-side passage 121, the other-side passage 122, and the communication passage 126 are arranged side by side in the circumferential direction, and connect two adjacent ones of the plurality of connection holes 112 and communication holes 113, respectively. The one-side passage 121, the other-side passage 122, and the communication passage 126 correspond to the intra-valve passage.

In the state shown in FIG. 51, the first circuit, third circuit, fourth circuit, and second circuit are connected in order (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit becomes independent. (second mode).

When the valve body 120B is rotated 60 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. are independent (third mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the second circuit, the third circuit, and the fourth circuit are all independent (fourth circuit). mode).

<22nd embodiment>
Next, a flow path switching valve 101 according to a twenty-second embodiment will be described with reference to FIG. FIG. 52 is a configuration diagram of a flow path switching valve 101 according to the twenty-second embodiment.

As shown in FIG. 52 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112G and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112F are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the structure of the valve body 120 is the same as that of the 21st embodiment, description thereof is omitted here.

In the state shown in FIG. 52, the first circuit, the third circuit, the second circuit, and the fourth circuit are connected in order (first mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the fourth circuit are connected in order, and the second circuit and the third circuit are respectively connected. Independent (second mode).

When the valve body 120B is rotated 60 degrees counterclockwise from the state shown in FIG. 52 without rotating the valve body 120A, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are connected in order (third mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, the second circuit, and the third circuit are connected in order (second 4 modes).

<23rd embodiment>
Next, with reference to FIG. 53, a passage switching valve 101 according to a twenty-third embodiment will be described. FIG. 53 is a configuration diagram of the flow path switching valve 101 according to the twenty-third embodiment.

As shown in FIG. 53, the flow path switching valve 101 includes a housing 110 and a pair of valve bodies 120. As shown in FIG. A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112D and the connection hole 112H are connected by a first circuit. The connection hole 112C and the connection hole 112G are connected by a second circuit. The connection hole 112B and the connection hole 112F are connected by a third circuit. The connection hole 112A and the connection hole 112E are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the structure of the valve body 120 is the same as that of the 21st embodiment, description thereof is omitted here.

In the state shown in FIG. 53, the first circuit, third circuit, fourth circuit, and second circuit are connected in order (first mode). From this state, when the valve body 120A is rotated counterclockwise by 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are respectively connected. Independent (second mode).

When the valve body 120B is rotated 60 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. and are independent of each other (third mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the second circuit, the third circuit, and the fourth circuit are all independent (fourth circuit). mode).

<24th embodiment>
Next, with reference to FIG. 54, a passage switching valve 101 according to a twenty-fourth embodiment will be described. FIG. 54 is a configuration diagram of the flow path switching valve 101 according to the twenty-fourth embodiment.

As shown in FIG. 54 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112G and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112F are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. The pair of valve bodies 120 are arranged side by side so that their rotation center axes are parallel to each other.

In the valve body 120A, one side passage 121 and the other side passage 122 which face each other across the rotation center, and a central passage passing through the rotation center and communicating linearly between the one side passage 121 and the other side passage 122 are provided. 123 are provided. The one-side passage 121, the other-side passage 122, and the central passage 123 correspond to intra-valve passages.

In the valve body 120B, one side passage 121 and the other side passage 122 facing each other across the rotation center are provided, and the one side passage 121 and the other side passage 122 are provided side by side in the circumferential direction, and the connection hole 112 and the communication hole 113 are provided. A communication passage 126 is provided for connecting two adjacent ones of them. In other words, the one-side passage 121, the other-side passage 122, and the communication passage 126 are arranged side by side in the circumferential direction, and connect two adjacent ones of the plurality of connection holes 112 and communication holes 113, respectively. The one-side passage 121, the other-side passage 122, and the communication passage 126 correspond to the intra-valve passage.

In the state shown in FIG. 54, the first circuit, the third circuit, the fourth circuit, and the second circuit are connected in order (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, the fourth circuit, and the second circuit are connected in order (second 2 modes). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the third circuit, and the second circuit are connected in order, and the fourth circuit becomes independent. (third mode).

When the valve body 120B is rotated 60 degrees counterclockwise without rotating the valve body 120A from the state shown in FIG. 54, the second circuit and the fourth circuit are connected in order, and the first circuit and the third circuit and are independent (fourth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the third circuit and the fourth circuit are connected in order, and the first circuit and the second circuit are respectively connected. Independent (fifth mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the second circuit and the third circuit are connected in order, and the first circuit and the fourth circuit are respectively connected. Independent (sixth mode).

<25th embodiment>
Next, with reference to FIG. 55, a passage switching valve 101 according to a twenty-fifth embodiment will be described. FIG. 55 is a configuration diagram of a flow path switching valve 101 according to a twenty-fifth embodiment.

As shown in FIG. 55 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112G and the connection hole 112H are connected by a first circuit. The connection hole 112A and the connection hole 112C are connected by a second circuit. The connection hole 112B and the connection hole 112D are connected by a third circuit. The connection hole 112E and the connection hole 112F are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the twenty-fourth embodiment, the description is omitted here.

In the state shown in FIG. 55, the first circuit, the third circuit and the fourth circuit are connected in order, and the second circuit is independent (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the fourth circuit are connected in order, and the second circuit and the third circuit are connected in order. concatenated (second mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the second circuit, and the fourth circuit are connected in order, and the third circuit becomes independent. (third mode).

When the valve body 120B is rotated 60 degrees counterclockwise from the state shown in FIG. 55 without rotating the valve body 120A, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit and are independent (fourth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, the second circuit, and the third circuit are connected in order (second 5 modes). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit and the third circuit are connected in order, and the second circuit and the fourth circuit are respectively connected. Independent (sixth mode).

<26th embodiment>
Next, with reference to FIG. 56, a passage switching valve 101 according to a twenty-sixth embodiment will be described. FIG. 56 is a configuration diagram of a flow path switching valve 101 according to the twenty-sixth embodiment.

As shown in FIG. 56 , the flow path switching valve 101 has a housing 110 and a pair of valve bodies 120 . A first circuit, a second circuit, a third circuit, and a fourth circuit are connected to the flow path switching valve 101 .

The housing 110 has a pair of valve housing portions 111 , a plurality (eight) of connection holes 112 , and a pair of communication holes 113 . Since the structures of the connection hole 112 and the communication hole 113 are the same as those of the eighteenth embodiment, the description thereof is omitted here.

The connection hole 112D and the connection hole 112H are connected by a first circuit. The connection hole 112C and the connection hole 112G are connected by a second circuit. The connection hole 112B and the connection hole 112F are connected by a third circuit. The connection hole 112A and the connection hole 112E are connected by a fourth circuit.

A pair of valve bodies 120 are provided so as to be rotatable about a central axis of rotation. The valve body 120 is formed in a substantially cylindrical shape. The valve body 120 has a valve body 120A housed in one valve body housing portion 111A and a valve body 120B housed in the other valve body housing portion 111B. Since the configuration of the valve body 120 is the same as that of the twenty-fourth embodiment, the description is omitted here.

In the state shown in FIG. 56, the first circuit, the third circuit and the second circuit are connected in order, and the fourth circuit is independent (first mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the fourth circuit, and the second circuit are connected in order, and the third circuit becomes independent. (second mode). From this state, when the valve body 120A is rotated counterclockwise 60 degrees without rotating the valve body 120B, the first circuit and the second circuit are connected in order, and the third circuit and the fourth circuit are connected in order. concatenated (third mode).

When the valve body 120B is rotated 60 degrees counterclockwise from the state shown in FIG. 56 without rotating the valve body 120A, the first circuit, the second circuit, the third circuit, and the fourth circuit all become independent. (Fourth mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the first circuit, the second circuit, the third circuit, and the fourth circuit become independent (fifth circuit). mode). From this state, when the valve body 120A is rotated 60 degrees counterclockwise without rotating the valve body 120B, the third circuit and the fourth circuit are connected in order, and the first circuit and the first circuit are respectively connected. Independent (sixth mode).

<Effect>
According to the above embodiment, the following effects are obtained.

A pair of flow path switching valves 101 are provided rotatably about a rotation center, and include a valve body 120 in which at least one valve passage (one side passage 121 and the other side passage 122) is defined, and a pair of valves. a housing 110 that accommodates the body 120, the housing 110 having a pair of valve body housing portions 111 in which the valve body 120 is rotatably arranged; a plurality of connection holes 112 that communicate with the internal valve passages (the one side passage 121 and the other side passage 122) in one of the pair of valve bodies 120, and a communication hole 113 that communicates between the valve body housing portions 111; have

According to this aspect, a pair of valve bodies 120 rotatable around the center of rotation and a housing 110 that houses the pair of valve bodies 120 are provided, and each valve body housing portion 111 that houses the valve bodies 120 is provided. communicates with each other through the communication hole 113 . Therefore, by rotating each of the pair of valve bodies 120, the plurality of connection holes 112 can be directly connected through the intra-valve passages (the one side passage 121 and the other side passage 122) defined in the valve bodies 120, It is possible to connect a plurality of connection holes 112 via the intra-valve passages (the one-side passage 121 and the other-side passage 122) and the communication holes 113, and to switch between many modes. Therefore, it is possible to provide the flow path switching valve 101 that is capable of switching between many modes with a simple configuration.

In addition, between the cooling water-refrigerant heat exchanger 26 and the cooling water-refrigerant heat exchanger 26, the cooling water is In the heat exchange device 100 including the flow path switching valve 101 provided so as to allow the flow of the flow path switching valve 101, a pair of the flow path switching valves 101 are provided so as to be rotatable around the center of rotation, and at least one passage in the valve (one side passage 121 and the other side passage 122), and a housing 110 that houses the pair of valve bodies 120. The housing 110 includes a pair of valve bodies in which the valve bodies 120 are rotatably arranged. A plurality of connections that communicate the valve body housing portion 111, the valve body housing portion 111, and the outside of the housing 110, and communicate with the intra-valve passage (the one side passage 121 and the other side passage 122) in one of the pair of valve bodies 120 It has a hole 112 and a communication hole 113 that communicates between the respective valve body housing portions 111. Each valve body housing portion 111 has at least two connection holes 112 and a communication hole 113 in the circumferential direction. A pair of connecting holes 112 arranged in a cross shape and extending in the same direction from each valve housing portion 111 perpendicularly to the communicating hole 113 are parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26. , and arranged on one end side in the stacking direction, and the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 are connected so that the cooling water can flow therethrough.

In this configuration, the pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicular to the communication hole 113 are parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and are stacked. It is arranged on one end side in the direction, and is connected between the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 so that the cooling water can flow therethrough. Therefore, since the cooling water passages are connected by the cooling water passage member 180 at one end side in the stacking direction of the cooling water-refrigerant heat exchanger 26, the size of the heat exchange device 100 can be reduced. Therefore, the layout of the heat exchange device 100 in the vehicle can be improved.

In addition, a cooling water-refrigerant heat exchanger 26 in which a first refrigerant circulation section in which the refrigerant circulates and a first cooling water circulation section in which the cooling water circulates are alternately stacked, and a second refrigerant circulation section in which the refrigerant circulates. Flow path switching provided so that the cooling water can flow between the refrigerant-hot water heat exchanger 29 and the cooling water-refrigerant heat exchanger 26, which are alternately stacked with the second cooling water circulation part in which the cooling water circulates. In the heat exchange device 100 including the valves 101, a pair of the flow path switching valves 101 are provided rotatably around the center of rotation, and at least one valve passage (one side passage 121 and the other side passage 122) is provided inside. and a housing 110 that accommodates the pair of valve bodies 120. The housing 110 includes a pair of valve body housing portions 111 in which the valve body 120 is rotatably disposed, and a valve body housing portion. A plurality of connection holes 112 that communicate between the portion 111 and the outside of the housing 110 and communicate with the intra-valve passage (one side passage 121 and the other side passage 122) in one of the pair of valve bodies 120, and each valve housing a communication hole 113 for communicating between the portions 111, and at least two connection holes 112 and a communication hole 113 are arranged in a cross shape in the circumferential direction in each valve housing portion 111, The cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29 are arranged in parallel so that the stacking direction is the same. -Refrigerant flow path member 37 that connects the first refrigerant circulation section and the second refrigerant circulation section to the hot water heat exchanger 29, and the variable throttle mechanism 28 that throttles the flow of the refrigerant flowing through the refrigerant flow path member 37 , are provided, the cooling water is cooled by the cooling water-refrigerant heat exchanger 26 and the cooling water is heated by the refrigerant-hot water heat exchanger 29 .

In this configuration, the pair of connection holes 112A and 112C extending in the same direction from each valve housing portion 111 perpendicular to the communication hole 113 are parallel to the stacking direction of the cooling water-refrigerant heat exchanger 26 and are stacked. It is arranged on one end side in the direction, and is connected between the flow path switching valve 101 and the cooling water-refrigerant heat exchanger 26 so that the cooling water can flow therethrough. In addition, the cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29 are arranged in parallel so that their stacking directions are the same. Therefore, since the cooling water passages are connected by the cooling water passage member 180 at one end side in the stacking direction of the cooling water-refrigerant heat exchanger 26 and the refrigerant-hot water heat exchanger 29, the heat exchange device 100 can be made compact. is possible. Therefore, the layout of the heat exchange device 100 in the vehicle can be improved.

Although the embodiments of the present invention have been described above, the above embodiments merely show a part of application examples of the present invention, and the technical scope of the present invention is not limited to the specific configurations of the above embodiments. do not have.

100 heat exchange device 101 flow path switching valve 1 temperature control system 2 drive motor (drive system heating element)
3 Storage battery 26 Cooling water-refrigerant heat exchanger (cooling water heat exchanger, first heat exchanger)
28 variable throttle mechanism (second variable throttle mechanism, throttle valve)
29 Refrigerant-hot water heat exchanger (second heat exchanger)
37 refrigerant passage member (refrigerant passage connection member)
40 cooling water circuit 50 first cooling water circuit (reference loop)
60 second cooling water circuit (first loop)
63 drive system heat exchanger (drive system heating element heat exchange part)
65 outdoor heat exchanger 70 third cooling water circuit (second loop)
73 storage battery heat exchanger (storage battery heat exchange part)
110 housing 111 valve housing portion 111A valve housing portion 111B valve housing portion 112 connection hole 112A connection hole 112B connection hole 112C connection hole 112D connection hole 112E connection hole 112F connection hole 112G connection hole 112H connection hole 113 communication hole 113A communication hole 113B Communication hole 120 Valve body 120A Valve body 120B Valve body 121 One side passage 122 Other side passage 123 Central passage 124 T-shaped passage 125 Closing portion 126 Communication passage 160 Actuator 201 Flow path switching valve 210 Housing

Claims (4)

A heat exchanger in which a refrigerant circulation section in which a refrigerant circulates and a cooling water circulation section in which cooling water circulates are alternately stacked, and a flow path switching valve provided so that cooling water can flow between the heat exchanger and the heat exchanger. A heat exchange device comprising:
The flow path switching valve is
a pair of valve bodies provided rotatably around a center of rotation and having at least one intra-valve passage defined therein;
a housing that accommodates the pair of valve bodies,
The housing is
a pair of valve housing portions in which the valve body is rotatably arranged;
a plurality of connection holes communicating between the valve housing portion and the exterior of the housing and communicating with the intra-valve passage in one of the pair of valve bodies;
a communication hole for communicating between each of the valve body accommodating portions;
has
At least two of the connection holes and the communication holes are arranged in each of the valve housing portions so as to form a cross in the circumferential direction,
A pair of said connection holes extending in the same direction from each of said valve housing portions perpendicularly to said communication holes are arranged parallel to the stacking direction of said heat exchangers and on one end side of said stacking direction, Cooling water is connected between the flow path switching valve and the heat exchanger,
A heat exchange device characterized by: A first heat exchanger in which a first refrigerant circulation section in which a refrigerant circulates and a first cooling water circulation section in which cooling water circulates are alternately stacked, and a second refrigerant circulation section in which a refrigerant circulates and the cooling water circulates. A heat exchange device comprising a second heat exchanger in which second cooling water circulation units are alternately stacked, and a flow path switching valve provided so that cooling water can flow between the first heat exchanger There is
The flow path switching valve is
a pair of valve bodies provided rotatably around a center of rotation and having at least one intra-valve passage defined therein;
a housing that accommodates the pair of valve bodies,
The housing is
a pair of valve housing portions in which the valve body is rotatably arranged;
a plurality of connection holes communicating between the valve housing portion and the exterior of the housing and communicating with the intra-valve passage in one of the pair of valve bodies;
a communication hole for communicating between each of the valve body accommodating portions;
has
At least two of the connection holes and the communication holes are arranged in each of the valve housing portions so as to form a cross in the circumferential direction,
The first heat exchanger and the second heat exchanger are arranged in parallel so that the stacking direction is the same,
a refrigerant passage connecting member that connects the first refrigerant circulation section and the second refrigerant circulation section between the first heat exchanger and the second heat exchanger on one end side in the stacking direction; a throttle valve for throttling the flow of the refrigerant flowing through the refrigerant passage connection member,
Cooling water is cooled in the first heat exchanger, and cooling water is heated in the second heat exchanger,
A heat exchange device characterized by: The heat exchange device according to claim 1 or 2,
The intra-valve passage has a one-side passage and the other-side passage facing each other across the rotation center,
The connection hole communicates the valve body accommodating portion with the outside of the housing, and communicates with the one side passage or the other side passage of either one of the pair of valve bodies.
A heat exchange device characterized by: The heat exchange device according to claim 1 or 2,
At least two of the connection holes and the communication holes are arranged in each of the valve body accommodating portions so as to form a T-shape or a cross shape in the circumferential direction, and the intra-valve passage communicates with the connection hole. block any one of the holes and connect the other,
A heat exchange device characterized by:

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