Valve group integrated module, vehicle thermal management system, and vehicle

Abstract

The present disclosure relates to a valve assembly integrated module, a vehicle thermal management system, and a vehicle. The module includes a base, a first on-off valve, and a first expansion valve. The base is formed with an indoor condenser outlet interface for connecting to the outlet of an indoor condenser outside the base, and an outdoor heat exchanger inlet interface for connecting to the inlet of an outdoor heat exchanger outside the base. A first flow channel is formed within the base, with both the indoor condenser outlet interface and the outdoor heat exchanger inlet interface communicating with the first flow channel. The first on-off valve and the first expansion valve are both disposed on the base and communicate with the first flow channel. By opening or closing the first on-off valve and throttling or closing the first expansion valve, refrigerant flowing from the indoor condenser outlet interface into the first flow channel can flow out of the outdoor heat exchanger inlet interface via the first on-off valve or the first expansion valve. Integrating the valves in the thermal management system into the base and forming flow channels within the base to replace pipelines helps reduce the complexity of the pipeline layout.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular, to a valve group integrated module, a vehicle thermal management system, and a vehicle. Background Art

[0002] The vehicle thermal management system is a crucial component of the vehicle, modifying the cabin's temperature and improving the driving experience for both driver and passenger. In existing technologies, various thermal management system components are connected via piping, with valve components such as expansion valves and on / off valves scattered throughout the piping. This design presents technical drawbacks such as complex piping layout, high space requirements, and difficult assembly. Summary of the Invention

[0003] The purpose of the present disclosure is to provide a valve group integrated module, a vehicle thermal management system and a vehicle, wherein the valve group integrated module can reduce the complexity of the pipeline layout in the vehicle thermal management system and reduce the space occupancy rate.

[0004] To achieve the above objectives, according to one aspect of the present disclosure, the present disclosure provides a valve group integrated module, comprising a base body, a first switch valve, and a first expansion valve;

[0005] The base is formed with an indoor condenser outlet interface for connecting to the outlet of the indoor condenser outside the base, and an outdoor heat exchanger inlet interface for connecting to the inlet of the outdoor heat exchanger outside the base;

[0006] A first flow channel is formed in the base, the indoor condenser outlet interface and the outdoor heat exchanger inlet interface are both connected to the first flow channel, the first switch valve and the first expansion valve are both arranged on the base and connected to the first flow channel, and the refrigerant flowing into the first flow channel from the indoor condenser outlet interface can flow out from the outdoor heat exchanger inlet interface via the first switch valve or the first expansion valve through the conduction or cutoff of the first switch valve and the throttling or cutoff of the first expansion valve.

[0007] Optionally, the first flow channel includes a first sub-flow channel and a second sub-flow channel, the indoor condenser outlet interface is connected to the first sub-flow channel, the outdoor heat exchanger inlet interface is connected to the second sub-flow channel, the inlet of the first switching valve is connected to the first sub-flow channel, the outlet of the first switching valve is connected to the second sub-flow channel, the inlet of the first expansion valve is connected to the first sub-flow channel, and the outlet of the first expansion valve is connected to the second sub-flow channel.

[0008] Optionally, the base includes a first split body and a second split body that cooperate with each other, wherein a first groove and a second groove are formed on a surface of the first split body facing the second split body, the second split body and the first groove together define the first sub-flow channel, and the second split body and the second groove together define the second sub-flow channel;

[0009] Wherein, the first switch valve and the first expansion valve are both installed on the first split body; or, the first switch valve and the first expansion valve are both installed on the second split body.

[0010] Optionally, at least one of the first groove and the second groove is a curved groove.

[0011] Optionally, an axis of the valve core of the first switch valve is perpendicular to the plane where the first sub-channel is located and the plane where the second sub-channel is located.

[0012] Optionally, the valve group integrated module further includes a second switching valve and a second expansion valve, and the base is further formed with an outdoor heat exchanger outlet interface for connecting to the outlet of the outdoor heat exchanger, an indoor evaporator inlet interface for connecting to the inlet of the indoor evaporator outside the base, and a reflux inlet interface for connecting to the inlet of the compressor outside the base or the inlet of the gas-liquid separator connected to the compressor.

[0013] A second flow channel is also formed in the base, and the outdoor heat exchanger outlet interface, the indoor evaporator inlet interface, and the return inlet interface are all connected to the second flow channel. The second switch valve and the second expansion valve are both arranged on the base and connected to the second flow channel. Through the conduction or cutoff of the second switch valve and the throttling or cutoff of the second expansion valve, the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface can flow out from the return inlet interface via the second switch valve, or flow out from the indoor evaporator inlet interface via the second expansion valve.

[0014] Optionally, the valve group integrated module further includes a third expansion valve, and the base is further formed with a battery pack heat exchanger inlet interface for connecting to a refrigerant inlet of a battery pack heat exchanger outside the base.

[0015] The battery pack heat exchanger inlet interface is communicated with the second flow channel, and the third expansion valve is arranged on the base and communicated with the second flow channel. Through the conduction or cutoff of the second switch valve, the throttling or cutoff of the second expansion valve and the throttling or cutoff of the third expansion valve, the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface can flow out from the reflux inlet interface via the second switch valve, or flow out from the indoor evaporator inlet interface via the second expansion valve, or flow out from the battery pack heat exchanger inlet interface via the third expansion valve, or flow out from the indoor evaporator inlet interface and the battery pack heat exchanger inlet interface via the second expansion valve and the third expansion valve respectively.

[0016] Optionally, the second flow channel includes a third sub-flow channel and a fourth sub-flow channel, the outdoor heat exchanger outlet interface is connected to the third sub-flow channel, the return inlet interfaces are both connected to the fourth sub-flow channel, the inlet of the second switch valve is connected to the third sub-flow channel, the outlet of the second switch valve is connected to the fourth sub-flow channel, the inlet of the second expansion valve is connected to the third sub-flow channel, the outlet of the second expansion valve is connected to the indoor evaporator inlet interface, the inlet of the third expansion valve is connected to the third sub-flow channel, and the outlet of the third expansion valve is connected to the battery pack heat exchanger inlet interface.

[0017] Optionally, the base includes a first split body and a second split body that cooperate with each other, the first split body is recessed inwardly toward a surface of the second split body to form a third groove and a fourth groove, the second split body and the third groove together define the third sub-flow channel, and the second split body and the fourth groove together define the fourth sub-flow channel;

[0018] The second switch valve, the second expansion valve, and the third expansion valve are all installed on the first split body; or the second switch valve, the second expansion valve, and the third expansion valve are all installed on the second split body.

[0019] Optionally, at least one of the third groove and the fourth groove is a curved groove.

[0020] Optionally, an indoor evaporator outlet interface for connecting to the outlet of the indoor evaporator is also formed on the base, and the indoor evaporator outlet interface is connected to the fourth sub-channel so that the refrigerant flowing into the fourth sub-channel from the indoor evaporator outlet interface can flow out from the return inlet interface.

[0021] Optionally, the valve group integrated module also includes a temperature sensor, and a first through hole, a second through hole and a third through hole are formed on the fourth sub-channel, the second through hole is located between the first through hole and the third through hole, the first through hole is connected to the indoor evaporator outlet interface, and the third through hole is connected to the reflux inlet interface, the temperature sensor is arranged on the base and the detection end of the temperature sensor passes through the second through hole and is located in the fourth sub-channel.

[0022] Optionally, a battery pack heat exchanger outlet interface is also formed on the base for connecting to the refrigerant outlet of the battery pack heat exchanger outside the base, and the battery pack heat exchanger outlet interface is communicated with the fourth sub-channel so that the refrigerant flowing into the fourth sub-channel from the battery pack heat exchanger outlet interface can flow out from the reflux inlet interface.

[0023] Optionally, an axis of the valve core of the second switch valve is perpendicular to the plane where the third sub-flow channel is located and the plane where the fourth sub-flow channel is located.

[0024] According to another aspect of the present disclosure, a vehicle thermal management system is provided, comprising the above-mentioned valve group integrated module.

[0025] According to yet another aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle thermal management system.

[0026] Through the above technical solution, since an indoor condenser outlet interface and an outdoor heat exchanger inlet interface are formed on the base, and the indoor condenser outlet interface and the outdoor heat exchanger inlet interface are both connected to the first flow channel in the base, and the first switch valve and the first expansion valve are also connected to the first fluid, in this way, the outlet of the indoor condenser does not need to be connected to the first expansion valve and the first switch valve respectively through different pipes, but can be connected to the indoor condenser outlet interface on the base through the same pipe, thereby being connected to the first switch valve and the first expansion valve through the first flow channel in the base; the inlet of the outdoor heat exchanger does not need to be connected to the first expansion valve and the first switch valve respectively through different pipes, but can be connected to the indoor condenser outlet interface on the base through the same pipe, thereby being connected to the first switch valve and the first expansion valve through the first flow channel in the base, so as to reduce the number of pipes and joints used to connect the indoor condenser and the outdoor heat exchanger to the first expansion valve and the first switch valve, reduce the number of pipes between the indoor condenser and the outdoor heat exchanger, and reduce the complexity of the pipe layout.

[0027] Furthermore, because the first expansion valve and the first on-off valve are disposed on the base and communicate with the first flow channel within the base, when assembling the indoor condenser, the outdoor heat exchanger, and the valve assembly integrated module, the indoor condenser and the outdoor heat exchanger can be connected to the first on-off valve and the first expansion valve by simply inserting the outlet connection pipe of the indoor condenser and the inlet connection pipe of the outdoor heat exchanger into the indoor condenser outlet interface and the outdoor heat exchanger inlet interface of the valve assembly integrated module, respectively. This simplifies and facilitates the assembly process. Furthermore, since both the first expansion valve and the first on-off valve are disposed on the base and form a module with the base, the problems of high space occupancy, inconvenience in assembly and maintenance, and other issues caused by the scattered distribution of the first expansion valve and the first on-off valve within the vehicle can be resolved.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] Figure 1 is a perspective view of a valve group integrated module provided by an exemplary embodiment of the present disclosure;

[0031] Figure 2 is an exploded view of a valve group integrated module provided by an exemplary embodiment of the present disclosure;

[0032] Figure 3 is a perspective view of a first split body of a base of a valve group integrated module provided in an exemplary embodiment of the present disclosure;

[0033] Figure 4 1 is a front view of a first sub-body of a base of a valve group integrated module provided in an exemplary embodiment of the present disclosure;

[0034] Figure 5 is a perspective view of a first split body of a base of a valve group integrated module provided by an exemplary embodiment of the present disclosure (with Figure 3 different perspectives);

[0035] Figure 6 is a top view of a first sub-body of a base of a valve group integrated module provided in an exemplary embodiment of the present disclosure;

[0036] Figure 7 It is along Figure 6 Sectional view after AA section;

[0037] Figure 8 is a perspective view of a valve group integrated module provided by another exemplary embodiment of the present disclosure;

[0038] Figure 9 is a flow path schematic diagram of a vehicle thermal management system provided by an exemplary embodiment of the present disclosure;

[0039] Figure 10 It is a flow path schematic diagram of a vehicle thermal management system provided by an exemplary embodiment of the present disclosure, which also shows the valves integrated on the valve group integrated module and the interface on the valve group integrated module.

[0040] Description of Reference Numerals

[0041] 11-First expansion valve; 12-Second expansion valve; 13-Third expansion valve; 21-First on / off valve; 22-Second on / off valve; 30-Temperature sensor; 41-Battery pack heat exchanger outlet interface; 42-Indoor evaporator inlet interface; 43-Outdoor heat exchanger inlet interface; 44-Indoor condenser outlet interface; 45-Battery pack heat exchanger inlet interface; 46-Return inlet interface; 47-Indoor evaporator outlet interface; 48-Outdoor heat exchanger outlet interface; 501-First 1. Expansion valve inlet interface; 511. First expansion valve outlet interface; 503. Second expansion valve inlet interface; 504. Third expansion valve inlet interface; 502. First switch valve inlet interface; 512. First switch valve outlet interface; 515. Second switch valve inlet interface; 516. Second switch valve outlet interface; 513. Second sub-channel outlet; 514. Third sub-channel inlet; 517. First through hole; 518. Second through hole; 519. Third through hole; 520. Four through holes; 60-base; 40-first sub-body; 50-second sub-body; 601-first sub-channel; 602-second sub-channel; 603-third sub-channel; 604-fourth sub-channel; 701-first groove; 702-second groove; 703-third groove; 704-fourth groove; 111-first expansion valve fastening hole; 112-first expansion valve mounting hole; 121-second expansion valve fastening hole; 122-second expansion valve mounting hole; 131-third expansion valve Fastening hole; 132-third expansion valve mounting hole; 210-first switch valve mounting hole; 211-first switch valve positioning hole; 220-second switch valve mounting hole; 221-second switch valve positioning hole; 31-temperature sensor mounting hole; 81-compressor; 82-indoor condenser; 83-outdoor heat exchanger; 84-battery pack heat exchanger; 85-indoor evaporator; 86-gas-liquid separator; 87-PTC air heater; 88-PTC water heater; 89-battery pack. DETAILED DESCRIPTION

[0042] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0043] In the present disclosure, unless otherwise specified, the terms "first", "second", etc. are used only to distinguish descriptions and should not be understood as indicating or implying relative importance. In addition, it should be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "set", "connected", "connect", and "installed" should be understood in a broad sense. For example, it can be fixedly connected, detachably connected, or integrally connected, and can be directly connected or indirectly connected; "connected" can mean that two elements are directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0044] In order to improve the driving experience of the driver and passengers in a vehicle, the temperature environment in the passenger compartment needs to be adjusted, which is usually achieved through the vehicle thermal management system. Figure 9 As shown, in the case where the passenger compartment needs to be cooled, the compressor 81, indoor condenser 82, first switch valve 21, outdoor heat exchanger 83, second expansion valve 12, and indoor evaporator 85 in the vehicle thermal management system are connected in series in sequence to form a refrigerant circuit, so that the low-temperature and low-pressure refrigerant can absorb heat in the indoor evaporator 85, absorb the heat of the passenger compartment and achieve cooling of the passenger compartment; in the case where the passenger compartment needs to be heated, the compressor 81, indoor condenser 82, first expansion valve 11, outdoor heat exchanger 83, and second switch valve 22 in the vehicle thermal management system are connected in series in sequence to form a refrigerant circuit, so that the high-temperature and high-pressure refrigerant can release heat in the indoor condenser 82 and increase the temperature of the passenger compartment. It should be noted that when the passenger compartment needs to be cooled, although the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 81 flows into the indoor condenser 82, the refrigerant in the indoor condenser 82 can be prevented from releasing heat in the indoor condenser 82 by not turning on the blower to blow air to the indoor condenser 82. That is to say, when the passenger compartment is cooled, the indoor condenser 82 is used as a flow channel.

[0045] When heating the passenger compartment, the refrigerant flowing out of the outlet of the indoor condenser 82 needs to be throttled and depressurized before flowing into the outdoor heat exchanger 83. The refrigerant flowing out of the outlet of the outdoor heat exchanger 83 does not need to be throttled and depressurized and flows directly back to the engine. When cooling the passenger compartment, the refrigerant flowing out of the outlet of the indoor condenser 82 does not need to be throttled and depressurized and flows directly into the outdoor heat exchanger 83. The refrigerant flowing out of the outlet of the outdoor heat exchanger 83 needs to be throttled and depressurized before flowing into the evaporator. In other words, in the vehicle thermal management system, it is necessary to control the throttling and depressurization of the refrigerant or to simply not throttle it, and this requires parallel switching valves and expansion valves to achieve this. However, setting up parallel switching valves and expansion valves requires at least two T-joints and six pipes, which increases the number of pipes and joints, complicates the pipe layout, and is not conducive to installation.

[0046] Therefore, in order to reduce the complexity of the pipeline layout of the vehicle thermal management system and reduce the number of pipelines and joints, according to one aspect of the present disclosure, as shown in FIG. Figures 1 to 10 As shown, a valve group integrated module is provided, which includes a base 60, a first switch valve 21 and a first expansion valve 11. Figure 3 As shown, the base body 60 is formed with an indoor condenser outlet interface 44 for connecting to the outlet of the indoor condenser 82 outside the base body 60, and an outdoor heat exchanger inlet interface 43 for connecting to the inlet of the outdoor heat exchanger 83 outside the base body 60. A first flow channel is formed in the base body 60, and both the indoor condenser outlet interface 44 and the outdoor heat exchanger inlet interface 43 are in communication with the first flow channel. The first switching valve 21 and the first expansion valve 11 are both disposed on the base body 60 and in communication with the first flow channel. By opening or closing the first switching valve 21 and throttling or closing the first expansion valve 11, the refrigerant flowing into the first flow channel from the indoor condenser outlet interface 44 can flow out of the outdoor heat exchanger inlet interface 43 via the first switching valve 21 or the first expansion valve 11.

[0047] In this way, the refrigerant flowing out of the outlet of the indoor condenser 82 can enter the first flow channel through the indoor condenser outlet interface 44. Through the conduction or cutoff of the first switch valve 21 and the throttling or cutoff of the first expansion valve 11, the refrigerant in the first flow channel can selectively flow out directly from the outdoor heat exchanger inlet interface 43 through the first switch valve 21 without being throttled, or flow out from the outdoor heat exchanger inlet interface 43 after being throttled through the first expansion valve 11. In this way, when the passenger cabin is heated, the refrigerant flowing out of the outlet of the indoor condenser 82 can flow into the outdoor heat exchanger 83 after throttling and reducing the pressure, and when the passenger cabin is cooled, the refrigerant flowing out of the outlet of the indoor condenser 82 does not undergo throttling and reducing the pressure, and flows directly into the outdoor heat exchanger 83 without being affected.

[0048] It can be understood that the first expansion valve 11 mentioned above and the second expansion valve 12 and the third expansion valve 13 mentioned below are valves that can achieve throttling and pressure reduction. Therefore, in the present disclosure, the throttling or cutoff of the expansion valve can be understood as the opening or closing of the expansion valve. When the expansion valve is open, the refrigerant can flow through the expansion valve and be throttled and reduced in pressure by the expansion valve, and when the expansion valve is closed, the refrigerant cannot flow through the expansion valve.

[0049] According to the above technical solution, since the indoor condenser outlet interface 44 and the outdoor heat exchanger inlet interface 43 are formed on the base 60, and the indoor condenser outlet interface 44 and the outdoor heat exchanger inlet interface 43 are both connected to the first flow channel in the base 60, and the first switch valve 21 and the first expansion valve 11 are also connected to the first fluid, in this way, the outlet of the indoor condenser 82 does not need to be connected to the first expansion valve 11 and the first switch valve 21 respectively through different pipes, but can be connected to the indoor condenser outlet interface 44 on the base 60 through the same pipe, thereby connecting to the first flow channel in the base 60 and the first switch valve 21. 1 and the first expansion valve 11; the inlet of the outdoor heat exchanger 83 does not need to be connected to the first expansion valve 11 and the first switch valve 21 respectively through different pipes, but can be communicated with the indoor condenser outlet interface 44 on the base 60 through the same pipe, thereby being connected to the first switch valve 21 and the first expansion valve 11 through the first flow channel in the base 60, so as to reduce the number of pipes and joints used to connect the indoor condenser 82 and the outdoor heat exchanger 83 with the first expansion valve 11 and the first switch valve 21, reduce the number of pipes between the indoor condenser 82 and the outdoor heat exchanger 83, and reduce the complexity of the pipe layout.

[0050] Furthermore, since the first expansion valve 11 and the first on-off valve 21 are disposed on the base 60 and communicate with the first flow channel within the base 60, when assembling the indoor condenser 82, the outdoor heat exchanger 83, and the valve assembly integrated module, it is only necessary to insert the outlet connection pipe of the indoor condenser 82 and the inlet connection pipe of the outdoor heat exchanger 83 into the indoor condenser outlet interface 44 and the outdoor heat exchanger inlet interface 43 of the valve assembly integrated module, respectively. This allows the indoor condenser 82 and the outdoor heat exchanger 83 to be connected to the first on-off valve 21 and the first expansion valve 11, making the assembly process simple and convenient. Furthermore, since both the first expansion valve 11 and the first on-off valve 21 are disposed on the base 60 and form a modular structure with the base 60, the problems of high space occupancy, inconvenience in assembly and maintenance, and the like, caused by the scattered distribution of the first expansion valve 11 and the first on-off valve 21 within the vehicle, can be resolved.

[0051] Alternatively, as Figure 5As shown, the first flow channel may include a first sub-flow channel 601 and a second sub-flow channel 602. The indoor condenser outlet interface 44 is in communication with the first sub-flow channel 601, the outdoor heat exchanger inlet interface 43 is in communication with the second sub-flow channel 602, the inlet of the first switch valve 21 is in communication with the first sub-flow channel 601, the outlet of the first switch valve 21 is in communication with the second sub-flow channel 602, the inlet of the first expansion valve 11 is in communication with the first sub-flow channel 601, and the outlet of the first expansion valve 11 is in communication with the second sub-flow channel 602. In other words, the inlet of the first switch valve 21 and the inlet of the first expansion valve 11 share the first sub-flow channel 601, and the outlet of the first switch valve 21 and the outlet of the first expansion valve 11 share the second sub-flow channel 602. This can reduce the number of flow channels within the base body 60, thereby reducing the structural complexity of the base body 60.

[0052] To achieve that the inlet of the first switch valve 21 and the inlet of the first expansion valve 11 are both connected to the first sub-channel 601, the outlet of the first switch valve 21 and the outlet of the first expansion valve 11 are both connected to the second sub-channel 602, as shown in FIG. Figure 4 As shown, the first sub-channel 601 may be formed with a first on-off valve inlet interface 502 and a first expansion valve inlet interface 501, and the second sub-channel 602 may be formed with a first expansion valve outlet interface 511, a first on-off valve outlet interface 512, and a second sub-channel outlet 513. The first on-off valve inlet interface 502 may be directly or indirectly connected to the inlet of the first on-off valve 21, the first on-off valve outlet interface 512 may be directly or indirectly connected to the outlet of the first on-off valve 21, the first expansion valve inlet interface 501 may be directly or indirectly connected to the inlet of the first expansion valve 11, the first expansion valve outlet interface 511 may be directly or indirectly connected to the outlet of the first expansion valve 11, and the second sub-channel outlet 513 may be directly or indirectly connected to the inlet interface 43 of the outdoor heat exchanger.

[0053] For example, as an embodiment, the inlet of the first switch valve 21 can be indirectly connected to the first switch valve inlet interface 502 through the first transition flow channel, the outlet of the first switch valve 21 can be indirectly connected to the first switch valve outlet interface 512 through the second transition flow channel, the inlet of the first expansion valve 11 can be indirectly connected to the first expansion valve inlet interface 501 through the third transition flow channel, the outlet of the first expansion valve 11 can be indirectly connected to the first expansion valve outlet interface 511 through the fourth transition flow channel, and the second sub-flow channel outlet 513 can be indirectly connected to the outdoor heat exchanger inlet interface 43 through the fifth transition flow channel.

[0054] As another embodiment, the inlet of the first on-off valve 21 can be directly connected to the first on-off valve inlet interface 502, the outlet of the first on-off valve 21 can be directly connected to the first on-off valve outlet interface 512, the inlet of the first expansion valve 11 can be directly connected to the first expansion valve inlet interface 501, and the outlet of the first expansion valve 11 can be directly connected to the first expansion valve outlet interface 511. Here, "direct connection" refers to a direct connection without any transition flow channel.

[0055] As mentioned above, if Figure 9 As shown, in the vehicle thermal management system, the outlet of the outdoor heat exchanger 83 is connected to the second switch valve 22 and the second expansion valve 12 connected in parallel. In order to integrate the second switch valve 22 and the second expansion valve 12 into the valve group integrated module provided by the present disclosure and further improve the integration of the valve group integrated module, the valve group integrated module may also include the second switch valve 22 and the second expansion valve 12, as shown in FIG. Figure 3 and Figure 5 As shown, the base 60 is also formed with an outdoor heat exchanger outlet interface 48 for connecting to the outlet of the outdoor heat exchanger 83, an indoor evaporator inlet interface 42 for connecting to the inlet of the indoor evaporator 85, and a reflux inlet interface 46 for connecting to the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 connected to the compressor 81. A second flow channel is also formed in the base 60. The outdoor heat exchanger outlet interface 48, the indoor evaporator inlet interface 42, and the reflux inlet interface 46 are all connected to the second flow channel. The second switch valve 22 and the second expansion valve 12 are both arranged on the base 60 and connected to the second flow channel. By conducting or cutting off the second switch valve 22 and throttling or cutting off the second expansion valve 12, the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface 48 can flow out from the reflux inlet interface 46 via the second switch valve 22, or flow out from the indoor evaporator inlet interface 42 via the second expansion valve 12.

[0056] The refrigerant flowing out of the outlet of the outdoor heat exchanger 83 can enter the second flow channel through the outdoor heat exchanger outlet interface 48. Through the conduction or cutoff of the second switch valve 22 and the throttling or cutoff of the second expansion valve 12, the refrigerant in the second flow channel can selectively flow out from the return inlet interface 46 through the second switch valve 22 without being throttled or flow out from the indoor evaporator inlet interface 42 after being throttled and reduced in pressure through the second expansion valve 12. In this way, when the passenger cabin is heated, the refrigerant flowing out of the outlet of the outdoor heat exchanger 83 can be not throttled and reduced in pressure, and can flow directly back to the compressor 81 without being affected or can be returned to the compressor 81 after gas-liquid separation through the gas-liquid separator 86. When the passenger cabin is cooled, the refrigerant flowing out of the outlet of the outdoor heat exchanger 83 can flow into the indoor evaporator 85 after being throttled and reduced in pressure.

[0057] Since an outdoor heat exchanger outlet interface 48 is formed on the base 60, the outlet of the outdoor heat exchanger 83 does not need to be connected to the second expansion valve 12 and the second switch valve 22 respectively through different pipes, but can be connected to the outdoor heat exchanger outlet interface 48 on the base 60 through the same pipe, and then connected to the second switch valve 22 and the second expansion valve 12 through the second flow channel in the base 60, so as to reduce the number of pipes and joints used to connect the outlet of the outdoor heat exchanger 83 to the second expansion valve 12 and the second switch valve 22, reduce the number of pipes between the outdoor heat exchanger 83 and the second expansion valve 12 and the second switch valve 22, and reduce the complexity of the pipe layout.

[0058] Furthermore, because the second expansion valve 12 and the second on-off valve 22 are mounted on the base 60 and communicate with the first flow channel within the base 60, during assembly, the connection between the outdoor heat exchanger 83 and the second on-off valve 22 and the second expansion valve 12 can be achieved simply by inserting the pipe connected to the outlet of the outdoor heat exchanger 83 into the outdoor heat exchanger outlet port 48 of the valve assembly integrated module, making the assembly process simple and convenient. Furthermore, since the second expansion valve 12 and the second on-off valve 22 are both mounted on the base 60 and form a modular structure with the base 60, this solves the problems of high space utilization, inconvenience in assembly and maintenance, and other issues caused by the second expansion valve 12 and the second on-off valve 22 being scattered throughout the vehicle.

[0059] Alternatively, as Figure 4 As shown, the second flow channel includes a third sub-flow channel 603 and a fourth sub-flow channel 604. The outdoor heat exchanger outlet interface 48 is connected to the third sub-flow channel 603, and the return inlet interface 46 is connected to the fourth sub-flow channel 604. The inlet of the second on-off valve 22 is connected to the third sub-flow channel 603, and the outlet of the second on-off valve 22 is connected to the fourth sub-flow channel 604. The inlet of the second expansion valve 12 is connected to the third sub-flow channel 603, and the outlet of the second expansion valve 12 is connected to the indoor evaporator inlet interface 42. In other words, the inlet of the second on-off valve 22 and the inlet of the second expansion valve 12 share the third sub-flow channel 603. This reduces the number of flow channels within the base body 60 and helps reduce the structural complexity of the base body 60.

[0060] To achieve that the inlet of the second switch valve 22 and the inlet of the second expansion valve 12 are both connected to the third sub-channel 603, the outlet of the second switch valve 22 is connected to the fourth sub-channel 604, as shown in FIG. Figure 4As shown, the third sub-channel 603 may be formed with a second on-off valve inlet interface 515, a second expansion valve inlet interface 503, and a third sub-channel inlet 514, and the fourth sub-channel 604 may be formed with a second on-off valve outlet interface 516. The third sub-channel 603 may be directly or indirectly connected to the outdoor heat exchanger outlet interface 48, the second on-off valve inlet interface 515 may be directly or indirectly connected to the inlet of the second on-off valve 22, the second on-off valve outlet interface 516 may be directly or indirectly connected to the outlet of the second on-off valve 22, the second expansion valve inlet interface 503 may be directly or indirectly connected to the inlet of the second expansion valve 12, and the indoor evaporator inlet interface 42 may be directly or indirectly connected to the outlet of the second expansion valve 12.

[0061] For example, as an embodiment, the inlet of the third sub-channel 514 can be indirectly connected to the outdoor heat exchanger inlet interface 43 through the sixth transition channel, the inlet of the second switch valve 22 can be indirectly connected to the second switch valve inlet interface 515 through the seventh transition channel, the outlet of the second switch valve 22 can be indirectly connected to the second switch valve outlet interface 516 through the eighth transition channel, the inlet of the second expansion valve 12 can be indirectly connected to the second expansion valve inlet interface 503 through the ninth transition channel, and the outlet of the second expansion valve 12 can be indirectly connected to the indoor evaporator inlet interface 42 through the tenth transition channel.

[0062] As another embodiment, the inlet of the second on-off valve 22 can be directly connected to the second on-off valve inlet interface 515, the outlet of the second on-off valve 22 can be directly connected to the second on-off valve outlet interface 516, the inlet of the second expansion valve 12 can be directly connected to the second expansion valve inlet interface 503, and the outlet of the second expansion valve 12 can be directly connected to the indoor evaporator inlet interface 42. Here, "direct connection" refers to a direct connection without any transition flow channel.

[0063] For hybrid vehicles or pure electric vehicles, the hybrid vehicles or pure electric vehicles are equipped with a battery pack 89. To ensure that the battery pack 89 is within a suitable operating temperature range, when the temperature of the battery pack 89 is too high, the battery pack 89 needs to be cooled. Figure 9 and Figure 10As shown, to utilize the cooling capacity of the refrigerant to cool the battery pack 89, it is necessary to install a battery pack heat exchanger 84 in series with the battery pack 89. The outlet of the outdoor heat exchanger 83 is connected to the refrigerant inlet of the battery pack heat exchanger 84 via the third expansion valve 13. The refrigerant outlet of the battery pack heat exchanger 84 is connected to the inlet of the compressor 81 or to the inlet of the compressor 81 via the gas-liquid separator 86. In this way, the refrigerant in the battery pack heat exchanger 84 can absorb the heat of the coolant, causing low-temperature coolant to flow out of the coolant outlet of the battery pack heat exchanger 84. This low-temperature coolant can absorb the heat of the battery pack 89 as it flows through the battery pack 89, thereby cooling the battery pack 89.

[0064] Since the third expansion valve 13 is also connected to the outlet of the outdoor heat exchanger 83, in order to further improve the integration of the valve group integrated module, such as Figure 1 and Figure 2 As shown, the valve group integrated module may further include a third expansion valve 13, as shown in FIG. Figure 3 As shown, a battery pack heat exchanger inlet interface 45 for connecting to the refrigerant inlet of the battery pack heat exchanger 84 outside the base body 60 is also formed on the base body 60, and the battery pack heat exchanger inlet interface 45 is communicated with the second flow channel. The third expansion valve 13 is arranged on the base body 60 and communicated with the second flow channel. Through the conduction or cutoff of the second switching valve 22, the throttling or cutoff of the second expansion valve 12 and the throttling or cutoff of the third expansion valve 13, the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface 48 can flow out from the reflux inlet interface 46 via the second switching valve 22, or flow out from the indoor evaporator inlet interface 42 via the second expansion valve 12, or flow out from the battery pack heat exchanger inlet interface 45 via the third expansion valve 13, or flow out from the indoor evaporator inlet interface 42 and the battery pack heat exchanger inlet interface 45 via the second expansion valve 12 and the third expansion valve 13 respectively.

[0065] When the passenger compartment is heated, the second switch valve 22 is turned on, and the second expansion valve 12 and the third expansion valve 13 are turned off. The refrigerant flowing into the second flow channel from the outlet of the outdoor heat exchanger 83 passes through the second switch valve 22 without being throttled and flows out from the return inlet interface 46 unaffected; when the passenger compartment is cooled, the second expansion valve 12 is opened and throttled, and the second switch valve 22 and the third expansion valve 13 are turned off. The refrigerant flowing into the second flow channel from the outlet of the outdoor heat exchanger 83 passes through the second expansion valve 13 to reduce the pressure and flows into the indoor evaporator 85; when the battery pack 89 has a cooling demand, the third expansion valve 13 is opened and throttled, and the third expansion valve 13 is opened and throttled. The second switch valve 22 and the second expansion valve 12 are cut off, and the refrigerant flowing into the second flow channel from the outlet of the outdoor heat exchanger 83 is throttled and reduced in pressure by the third expansion valve and then flows into the battery pack heat exchanger 84; when the battery pack 89 has a coolant demand and the passenger compartment has a cooling demand, the second expansion valve 12 opens and throttles, the third expansion valve 13 opens and throttles, and the second switch valve 22 is cut off, and the refrigerant flowing into the second flow channel from the outlet of the outdoor heat exchanger 83 is divided into two streams, one stream flows into the indoor evaporator 85 after being throttled and reduced in pressure by the second expansion valve, and the other stream flows into the battery pack heat exchanger 84 after being throttled and reduced in pressure by the third expansion valve.

[0066] For the embodiment in which the second flow channel includes the third sub-flow channel 603 and the fourth sub-flow channel 604, Figure 4 and Figure 5 As shown, the inlet of the third expansion valve 13 can communicate with the third sub-channel 603, and the outlet of the third expansion valve 13 communicates with the battery pack heat exchanger inlet interface 45. The inlet of the third expansion valve 13, the inlet of the second expansion valve 12, and the inlet of the second on-off valve 22 are all connected to the third sub-channel 603, sharing the third sub-channel 603. In this way, the refrigerant flowing from the outdoor heat exchanger 83 into the third sub-channel 603 can selectively pass through the open valve based on the opening or closing of the second on-off valve 22, the second expansion valve 12, and the third expansion valve 13, thereby flowing through the valve to the interface corresponding to the valve, and then to the component corresponding to the interface.

[0067] Alternatively, as Figure 4As shown, a third expansion valve inlet interface 504 may be formed on the third sub-channel 603, and the third expansion valve inlet interface 504 may be directly or indirectly connected to the inlet of the third expansion valve 13. The outlet of the third expansion valve 13 may be directly or indirectly connected to the inlet interface 45 of the battery pack heat exchanger. For example, as an embodiment, the third expansion valve inlet interface 504 may be indirectly connected to the inlet of the third expansion valve 13 through the ninth transition channel, and the outlet of the third expansion valve 13 may be indirectly connected to the inlet interface 45 of the battery pack heat exchanger through the tenth transition channel; as another embodiment, the inlet of the third expansion valve 13 may be directly connected to the third expansion valve inlet interface 504, and the outlet of the third expansion valve 13 may be directly connected to the inlet interface of the battery pack heat exchanger 84. Here, "direct connection" refers to a direct connection without passing through any transition channel.

[0068] Alternatively, as Figure 8 As shown, the battery pack heat exchanger 84 can be installed on the base 60, thereby further improving the integration of the valve group integrated module.

[0069] In addition, if Figure 9 and Figure 10 As shown, since the outlet of the indoor evaporator 85 is also connected to the inlet of the compressor 81 or is connected to the inlet of the compressor 81 through the gas-liquid separator 86, in order to reduce the number of connecting pipes and joints between the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 and the outlet of the second switch valve 22 and the outlet of the indoor evaporator 85, the refrigerant flowing out of the outlet of the indoor evaporator 85 can return to the valve group integrated module and flow back to the compressor 81 through the reflux inlet interface 46 on the base 60 or flow back to the compressor 81 through the gas-liquid separator 86.

[0070] Specifically, if Figure 4 and Figure 5 As shown, the base body 60 may be formed with an indoor evaporator outlet interface 47 for connecting to the outlet of the indoor evaporator 85 outside the base body 60. The indoor evaporator outlet interface 47 is in communication with the fourth sub-channel 604, so that the refrigerant flowing into the fourth sub-channel 604 from the indoor evaporator outlet interface 47 can flow out from the return inlet interface 46. In this way, by simply connecting the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 to the return inlet interface 46 through a pipeline, the refrigerant flowing out of the outlet of the indoor evaporator 85 or the outlet of the second switching valve 22 can flow into the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 through the return inlet interface 46.

[0071] In order to facilitate the detection of the temperature of the refrigerant flowing out of the outlet of the indoor evaporator 85, the temperature sensor 30 can also be integrated into the valve group integrated module. As an optional embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 As shown, the valve group integrated module also includes a temperature sensor 30, and a first through hole 517, a second through hole 518 and a third through hole 519 are formed on the fourth sub-channel 604. The second through hole 518 is located between the first through hole 517 and the third through hole 519. The first through hole 517 is connected to the indoor evaporator outlet interface 47, and the third through hole 519 is connected to the reflux inlet interface 46. The temperature sensor 30 is arranged on the base 60 and the detection end of the temperature sensor 30 passes through the second through hole 518 and is located in the fourth sub-channel 604. The refrigerant flowing out from the outlet of the indoor evaporator 85 flows into the fourth sub-channel 604 through the evaporator outlet interface and the first through hole 517, and flows toward the third through hole 519 in the fourth sub-channel 604, so as to flow into the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 through the reflux inlet interface 46 connected to the third through hole 519. Since the detection end of the temperature sensor 30 is located between the first through hole 517 and the second through hole 518, the refrigerant flowing out from the outlet of the indoor evaporator 85 will pass through the detection end of the temperature sensor 30 when flowing in the fourth sub-channel 604, so that the temperature sensor 30 can detect the temperature of the refrigerant in the fourth sub-channel 604.

[0072] Optionally, the indoor evaporator outlet interface 47 may be indirectly connected to the first through hole 517 through an eleventh transition flow channel, and the return inlet interface 46 may be indirectly connected to the third through hole 519 through a twelfth transition flow channel.

[0073] For the case where the vehicle thermal management system mentioned above is provided with a battery pack heat exchanger 84, Figure 9 As shown, the refrigerant outlet of the battery pack heat exchanger 84 is also connected to the inlet of the compressor 81 or connected to the inlet of the compressor 81 through the gas-liquid separator 86. Therefore, as shown in FIG. Figure 3 As shown, the base 60 may also be formed with a battery pack heat exchanger outlet port 41 for connecting to the refrigerant outlet of the battery pack heat exchanger 84 outside the base 60. The battery pack heat exchanger outlet port 41 communicates with the fourth sub-channel 604, so that refrigerant flowing into the fourth sub-channel 604 from the battery pack heat exchanger outlet port 41 can flow out from the return inlet port 46. In this way, the number of connecting pipes between the inlet of the compressor 81 or the inlet of the gas-liquid separator 86 and the refrigerant outlet of the battery pack heat exchanger 84 can be further reduced.

[0074] Alternatively, as Figure 4 As shown, a fourth through hole 520 may be formed on the fourth sub-channel 604 , and the fourth through hole 520 may be indirectly connected to the battery pack heat exchanger outlet interface 41 through the thirteenth transition channel.

[0075] As mentioned above, the first sub-channel 601, the second sub-channel 602, the third sub-channel 603, and the fourth sub-channel 604 are formed in the base 60. The base 60 can have any appropriate structure and shape, and can be manufactured and formed by any appropriate method to form the first sub-channel 601, the second sub-channel 602, the third sub-channel 603, and the fourth sub-channel 604. For example, as an embodiment, the base 60 can be integrally formed using a molding die, such as by pouring, to form the first sub-channel 601, the second sub-channel 602, the third sub-channel 603, and the fourth sub-channel 604 during the molding process.

[0076] As another embodiment, the base 60 may be a split structure. Figure 2 As shown, the base 60 may include a first sub-body 40 and a second sub-body 50 that cooperate with each other. Figure 4 and Figure 5 As shown, a first groove 701, a second groove 702, a third groove 703, and a fourth groove 704 are formed on the surface of the first sub-body 40 facing the second sub-body 50. The second sub-body 50 and the first groove 701 together define a first sub-channel 601, the second sub-channel 602 together define a second sub-channel 602, the second sub-channel 603 together define a third sub-channel 603, and the second sub-channel 604 together define a fourth sub-channel 604. The first on-off valve 21, the second on-off valve 22, the first expansion valve 11, the second expansion valve 12, and the third expansion valve 13 can all be mounted on the first sub-body 40; alternatively, the first expansion valve 11, the second expansion valve 12, and the third expansion valve 13 can all be mounted on the second sub-body 50. That is to say, the first switch valve 21, the second switch valve 22, the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13 can be located on the same split body as the first groove 701, the second groove 702, the third groove 703 and the fourth groove 704, or they can be located on different split bodies, and this disclosure does not limit this.

[0077] The base 60 is configured to include a first split body 40 and a second split body 50 that cooperate with each other, and a first groove 701, a second groove 702, a third groove 703 and a fourth groove 704 are opened on the surface of the first split body 40 facing the second split body 50, and the first sub-channel 601, the second sub-channel 602, the third sub-channel 603 and the fourth sub-channel 604 are formed by the cooperation between the first split body 40 and the second split body 50. The advantage is that: since the manufacturing process of opening the first groove 701, the second groove 702, the third groove 703 and the fourth groove 704 on the surface of the first split body 40 facing the second split body 50 is simpler, this can facilitate the formation and manufacture of the flow channel, especially facilitate the manufacture of curved flow channels.

[0078] Alternatively, as Figure 4 and Figure 5 As shown, at least one of the first groove 701 and the second groove 702 is a curved groove, and at least one of the second groove 702 and the third groove 703 may also be a curved groove.

[0079] For the embodiment in which curved grooves are formed in the first groove 701 , the second groove 702 , the third groove 703 , and the fourth groove 704 , the angle of the inflection of the curved groove may be greater than or equal to 90° to reduce the flow resistance of the refrigerant flowing in the curved flow channel.

[0080] Furthermore, since the indoor condenser outlet interface 44, the outdoor heat exchanger inlet interface 43, the outdoor heat exchanger outlet interface 48, the return inlet interface 46, the battery pack heat exchanger outlet interface 41, etc. can be disposed on the outer surface of the base 60, the first groove 701, the second groove 702, the third groove 703, and the fourth groove 704 provided on the first split body 40 can facilitate connection between the interfaces located on the surface and their corresponding sub-channels. Specifically, for example, with respect to the third sub-channel 603 and the outdoor heat exchanger outlet interface 48 connected thereto, after the third groove 703 is provided on the first split body 40, a linear cavity can be drilled through the groove wall of the third groove 703 to the outer surface of the first split body 40, thereby forming the third sub-channel inlet 514, the outdoor heat exchanger outlet interface 48, and a sixth transition channel connecting the third sub-channel inlet 514 and the outdoor heat exchanger outlet interface 48. The communication mode between other interfaces and their corresponding sub-channels is similar to the communication mode between the outdoor heat exchanger outlet interface 48 and the third sub-channel 603 , and will not be described in detail here.

[0081] In addition, the first switch valve 21 and the second switch valve 22 can be installed at any appropriate position on the base 60. As an embodiment, referring to Figures 2 to 5 As shown, the axis of the valve core of the first switch valve 21 can be perpendicular to the plane where the first sub-channel 601 is located and the plane where the second sub-channel 602 is located, and the axis of the valve core of the second switch valve 22 can be perpendicular to the plane where the third sub-channel 603 is located and the plane where the fourth sub-channel 604 is located, so as to prevent impurities from being deposited in the first switch valve 21 and the second switch valve 22. Here, the plane where the channel is located refers to, Figure 4 The plane shown in FIG. 1 is defined by the length direction and the width direction of the base 60 .

[0082] In a specific embodiment provided by the present disclosure, Figures 2 to 6As shown, the first body 40 can be formed into a cubic shape, having two large faces defined by the length and width of the first body 40, and four narrow faces defined by the length and thickness of the first body 40, and the width and thickness of the first body 40. The first groove 701, the second groove 702, the third groove 703, and the fourth groove 704 can be formed on one large face, and the first on-off valve 21 and the second on-off valve 22 can be mounted on the other large face, such that the axis of the valve core of the first on-off valve 21 is perpendicular to the plane of the first sub-channel 601 and the plane of the second sub-channel 602, and the axis of the valve core of the second on-off valve 22 is perpendicular to the plane of the third sub-channel 603 and the plane of the fourth sub-channel 604. The first expansion valve 11, the second expansion valve 12, and the third expansion valve 13 can be mounted on the narrow faces, so that the first expansion valve 11, the second expansion valve 12, and the third expansion valve 13 can be connected to their corresponding channels and interfaces.

[0083] The first on-off valve 21, the second on-off valve 22, the first expansion valve 11, the second expansion valve 12, the third expansion valve 13, and the temperature sensor 30 can be mounted on the base 60 in any appropriate manner. Figure 3 As shown, in one embodiment provided by the present disclosure, a first expansion valve mounting hole 112, a second expansion valve mounting hole 122, a third expansion valve mounting hole 132, a first switch valve mounting hole 210, a second switch valve mounting hole 220 and a temperature sensor mounting hole 31 can be formed on the base 60, wherein the first expansion valve mounting hole 112, the second expansion valve mounting hole 122, the third expansion valve mounting hole 132, the first switch valve mounting hole 210, the second switch valve mounting hole 220 and the temperature sensor mounting hole 31 can be formed with internal threads on the hole walls so that the first switch valve 21, the second switch valve 22, the first expansion valve 11, the second expansion valve 12, the third expansion valve 132 and the temperature sensor 30 are threadedly connected to the first switch valve mounting hole 210, the second switch valve mounting hole 220, the first expansion valve mounting hole 112, the second expansion valve mounting hole 122, the third expansion valve mounting hole 132 and the temperature sensor mounting hole 31 respectively.

[0084] In addition, in order to further improve the fixation of the first expansion valve 11, the second expansion valve 12 and the third expansion valve 13, as shown in FIG. Figure 3 As shown, a first expansion valve fastening hole 111, a second expansion valve fastening hole 121 and a third expansion valve fastening hole 131 can be formed on the base 60, a first bolt can pass through the mounting plate on the first expansion valve 11 and be threadedly connected to the first expansion valve fastening hole 111, a second bolt can pass through the mounting plate on the second expansion valve 12 and be threadedly connected to the second expansion valve fastening hole 121, and a third bolt can pass through the mounting plate on the third expansion valve 13 and be threadedly connected to the third expansion valve fastening hole 131.

[0085] Optionally, to facilitate the positioning and assembly of the first switch valve 21 and the second switch valve 22, as shown in FIG. Figure 3 As shown, a first switch valve positioning hole 211 and a second switch valve positioning hole 221 can also be formed on the base 60. The first switch valve positioning hole 211 is used to cooperate with the positioning plate on the first switch valve 21, and the second switch valve positioning hole 221 is used to cooperate with the positioning plate on the second switch valve 22.

[0086] For ease of understanding, the following will be based on Figure 9 and Figure 10 The vehicle thermal management system shown in the figure is combined with the Figures 1 to 8 The valve group integrated module shown details the flow path of the refrigerant in the vehicle thermal management system in the main operating mode.

[0087] Mode 1: Passenger compartment cooling mode. Figure 9 and Figure 10 As shown, in this mode, the main refrigerant flow path is: compressor 81 → indoor condenser 82 → first on-off valve 21 → outdoor heat exchanger 83 → second expansion valve 12 → indoor evaporator 85 → gas-liquid separator 86 → compressor 81. In this mode, the indoor evaporator 85 contains low-temperature, low-pressure refrigerant, which absorbs heat from the passenger compartment in the indoor evaporator 85, thereby cooling the passenger compartment.

[0088] It should be noted that in this mode, although the refrigerant flowing out of the outlet of the compressor 81 flows through the indoor condenser 82, it is not necessary to use a fan or blower to blow air to the indoor condenser 82, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 82 does not release heat and condense in the indoor condenser 82. That is to say, in this mode, the indoor condenser 82 is used as a flow channel.

[0089] In combination with the valve group integrated module provided in the present disclosure, the specific flow path of the refrigerant is: compressor 81 → indoor condenser 82 → indoor condenser outlet interface 44 → first sub-channel 601 → first switch valve inlet interface 502 → first switch valve 21 → first switch valve outlet interface 512 → second sub-channel 602 → second sub-channel outlet 513 → outdoor heat exchanger inlet interface 43 → outdoor heat exchanger 83 → outdoor heat exchanger outlet interface 48 → third sub-channel inlet 514 → third sub-channel 603 → second expansion valve inlet interface 503 → second expansion valve 12 → indoor evaporator inlet interface 42 → indoor evaporator 85 → indoor evaporator outlet interface 47 → first through hole 517 → fourth sub-channel 604 → third through hole 519 → reflux inlet interface 46 → gas-liquid separator 86 → compressor 81.

[0090] Mode 2: Battery pack 89 cooling mode. Figure 9 and Figure 10As shown, in this mode, the main flow path of the refrigerant is: compressor 81 → indoor condenser 82 → first on / off valve 21 → outdoor heat exchanger 83 → third expansion valve 13 → battery pack heat exchanger 84 → gas-liquid separator 86 → compressor 81. The main flow path of the coolant is: battery pack 89 → battery pack heat exchanger 84 → battery pack 89. In this mode, the low-temperature, low-pressure refrigerant in the battery pack heat exchanger 84 absorbs heat from the high-temperature coolant, causing low-temperature coolant to flow out of the coolant outlet of the battery pack heat exchanger 84. This low-temperature coolant absorbs heat from the battery pack 89 as it flows through it, cooling the battery pack 89.

[0091] It should be noted that in this mode, although the refrigerant flowing out of the outlet of the compressor 81 flows through the indoor condenser 82, it is not necessary to use a fan or blower to blow air to the indoor condenser 82, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 82 does not release heat and condense in the indoor condenser 82. That is to say, in this mode, the indoor condenser 82 is used as a flow channel.

[0092] In combination with the valve group integrated module provided in the present disclosure, the specific flow path of the refrigerant is: compressor 81 → indoor condenser 82 → indoor condenser outlet interface 44 → first sub-channel 601 → first switch valve inlet interface 502 → first switch valve 21 → first switch valve outlet interface 512 → second sub-channel 602 → second sub-channel outlet 513 → outdoor heat exchanger inlet interface 43 → outdoor heat exchanger 83 → outdoor heat exchanger outlet interface 48 → third sub-channel inlet 514 → third sub-channel 603 → third expansion valve inlet interface 504 → third expansion valve 13 → battery pack heat exchanger inlet interface 45 → battery pack heat exchanger 84 → battery pack heat exchanger outlet interface 41 → fourth through hole 520 → fourth sub-channel 604 → third through hole 519 → reflux inlet interface 46 → gas-liquid separator 86 → compressor 81.

[0093] Mode 3: Passenger compartment cooling and battery pack 89 cooling mode. It can be understood that this mode is a combination of Modes 1 and 2. In this mode, the refrigerant's primary flow path is: compressor 81 → indoor condenser 82 → first on / off valve 21 → outdoor heat exchanger 83. The refrigerant flowing out of the outdoor heat exchanger 83 is split into two streams: one stream flows through: second expansion valve 12 → indoor evaporator 85 → gas-liquid separator 86 → compressor 81; the other stream flows through: third expansion valve 13 → battery pack heat exchanger 84 → gas-liquid separator 86 → compressor 81. The main coolant flow path is: battery pack 89 → battery pack heat exchanger 84 → battery pack 89. It should be noted that in this mode, although the refrigerant flowing out of the outlet of the compressor 81 flows through the indoor condenser 82, it is not necessary to use a fan or blower to blow air to the indoor condenser 82, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 82 does not release heat and condense in the indoor condenser 82. That is to say, in this mode, the indoor condenser 82 is used as a flow channel.

[0094] In combination with the valve group integrated module provided in the present disclosure, the specific flow path of the refrigerant is: compressor 81 → indoor condenser 82 → indoor condenser outlet interface 44 → first sub-channel 601 → first switch valve inlet interface 502 → first switch valve 21 → first switch valve outlet interface 512 → second sub-channel 602 → second sub-channel outlet 513 → outdoor heat exchanger inlet interface 43 → outdoor heat exchanger 83 → outdoor heat exchanger outlet interface 48 → third sub-channel inlet 514 → third sub-channel 603. The refrigerant in the third sub-channel 603 is divided into two streams. One stream flows along the following path: second expansion valve 12 → indoor evaporator inlet port 42 → indoor evaporator 85 → indoor evaporator outlet port 47 → first through-hole 517 → fourth sub-channel 604. The other stream flows along the following path: third expansion valve inlet port 504 → third expansion valve 13 → battery pack heat exchanger inlet port 45 → battery pack heat exchanger 84 → battery pack heat exchanger outlet port 41 → fourth through-hole 520 → fourth sub-channel 604. In other words, the refrigerant flowing out of the outlet of the indoor evaporator 85 and the refrigerant flowing out of the refrigerant outlet of the battery pack heat exchanger 84 flow through the indoor evaporator outlet port 47 and the battery pack heat exchanger outlet port 41, respectively, into the fourth sub-channel 604 and merge in the fourth sub-channel 604. The merged refrigerant then flows along the following path: third through-hole 519 → return inlet port 46 → gas-liquid separator 86 → compressor 81.

[0095] Mode 4: Passenger compartment heating mode. Figure 9 and Figure 10As shown, in this mode, the primary refrigerant flow path is: compressor 81 → indoor condenser 82 → first expansion valve 11 → outdoor heat exchanger 83 → second on-off valve 22 → gas-liquid separator 86 → compressor 81. In this mode, the high-temperature, high-pressure refrigerant flowing out of compressor 81 flows into indoor condenser 82, where it releases heat, thereby raising the temperature of the passenger compartment and achieving heating. For embodiments equipped with a PTC air heater 87, the PTC air heater 87 can also be activated in passenger compartment heating mode, thereby combining with the indoor condenser 82 to heat the passenger compartment.

[0096] Furthermore, in this mode, if heating is required for battery pack 89, the PTC water heater 88 in the coolant circuit formed by the series connection of battery pack 89 and battery pack heat exchanger 84 can be activated. PTC water heater 88 heats the coolant, thereby heating battery pack 89 and further enabling both passenger compartment heating and battery pack 89 heating modes. In passenger compartment heating mode, since refrigerant does not flow into battery pack heat exchanger 84, only coolant flows into battery pack heat exchanger 84. No heat exchange occurs in the battery pack heat exchanger 84, and battery pack heat exchanger 84 can be considered a throughflow channel.

[0097] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant in mode four is: compressor 81 → indoor condenser 82 → indoor condenser outlet interface 44 → first sub-channel 601 → first expansion valve inlet interface 501 → first expansion valve 11 → first expansion valve outlet interface 511 → second sub-channel 602 → second sub-channel outlet 513 → outdoor heat exchanger inlet interface 43 → outdoor heat exchanger 83 → outdoor heat exchanger outlet interface 48 → third sub-channel inlet 514 → third sub-channel 603 → second switch valve inlet interface 515 → second switch valve 22 → second switch valve outlet interface 516 → fourth sub-channel 604 → third through hole 519 → reflux inlet interface 46 → gas-liquid separator 86 → compressor 81.

[0098] Mode 5: Dehumidification mode for passenger compartment. Figure 9 and Figure 10 As shown, in this mode, the main refrigerant flow path is: compressor 81 → indoor condenser 82 → first on-off valve 21 → outdoor heat exchanger 83 → second expansion valve 12 → indoor evaporator 85 → gas-liquid separator 86 → compressor 81. In this mode, the high-temperature, high-pressure refrigerant flowing out of the outlet of compressor 81 releases heat in the indoor condenser 82, while the indoor evaporator 85 receives low-temperature, low-pressure refrigerant. As a result, when the hot, humid air in the passenger compartment encounters the cold indoor evaporator 85, the water vapor in the humid air condenses into condensed water on the surface of the indoor evaporator 85, thereby achieving the purpose of dehumidifying the passenger compartment.

[0099] In combination with the valve group integrated module provided in the present disclosure, the specific flow path of the refrigerant is: compressor 81 → indoor condenser 82 → indoor condenser outlet interface 44 → first sub-channel 601 → first switch valve inlet interface 502 → first switch valve 21 → first switch valve outlet interface 512 → second sub-channel 602 → second sub-channel outlet 513 → outdoor heat exchanger inlet interface 43 → outdoor heat exchanger 83 → outdoor heat exchanger outlet interface 48 → third sub-channel inlet 514 → third sub-channel 603 → second expansion valve inlet interface 503 → second expansion valve 12 → indoor evaporator inlet interface 42 → indoor evaporator 85 → indoor evaporator outlet interface 47 → first through hole 517 → fourth sub-channel 604 → third through hole 519 → reflux inlet interface 46 → gas-liquid separator 86 → compressor 81.

[0100] According to another aspect of the present disclosure, a vehicle thermal management system is also provided, comprising the above-mentioned valve group integrated module.

[0101] According to yet another aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle thermal management system.

[0102] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0103] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0104] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A valve group integrated module, characterized in that: It comprises a base (60), a first switch valve (21) and a first expansion valve (11); An indoor condenser outlet interface (44) for connecting to the outlet of an indoor condenser (82) outside the base (60) and an outdoor heat exchanger inlet interface (43) for connecting to the inlet of an outdoor heat exchanger (83) outside the base (60) are formed on the base (60); A first flow channel is formed in the base (60), the indoor condenser outlet interface (44) and the outdoor heat exchanger inlet interface (43) are both in communication with the first flow channel, the first switch valve (21) and the first expansion valve (11) are both arranged on the base (60) and in communication with the first flow channel, and the refrigerant flowing into the first flow channel from the indoor condenser outlet interface (44) can flow out from the outdoor heat exchanger inlet interface (43) via the first switch valve (21) or the first expansion valve (11) by turning on or off the first switch valve (21) and throttling or cutting off the first expansion valve (11); The valve group integrated module further includes a second on-off valve (22) and a second expansion valve (12); the base (60) is further provided with an outdoor heat exchanger outlet interface (48) for connecting to the outlet of the outdoor heat exchanger (83), an indoor evaporator inlet interface (42) for connecting to the inlet of the indoor evaporator (85) outside the base (60), and a reflux inlet interface (46) for connecting to the inlet of the compressor (81) outside the base (60) or the inlet of the gas-liquid separator (86) connected to the compressor (81); A second flow channel is also formed in the base (60), and the outdoor heat exchanger outlet interface (48), the indoor evaporator inlet interface (42), and the return inlet interface (46) are all connected to the second flow channel. The second switch valve (22) and the second expansion valve (12) are both arranged on the base (60) and connected to the second flow channel. By turning on or off the second switch valve (22) and throttling or cutting off the second expansion valve (12), the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface (48) can flow out from the return inlet interface (46) via the second switch valve (22), or flow out from the indoor evaporator inlet interface (42) via the second expansion valve (12).

2. The valve group integrated module according to claim 1, characterized in that: The first flow channel includes a first sub-flow channel (601) and a second sub-flow channel (602), the indoor condenser outlet interface (44) is connected to the first sub-flow channel (601), the outdoor heat exchanger inlet interface (43) is connected to the second sub-flow channel (602), the inlet of the first switch valve (21) is connected to the first sub-flow channel (601), the outlet of the first switch valve (21) is connected to the second sub-flow channel (602), the inlet of the first expansion valve (11) is connected to the first sub-flow channel (601), and the outlet of the first expansion valve (11) is connected to the second sub-flow channel (602).

3. The valve group integrated module according to claim 2, characterized in that: The base (60) comprises a first split body (40) and a second split body (50) that cooperate with each other; a first groove (701) and a second groove (702) are formed on a surface of the first split body (40) facing the second split body (50); the second split body (50) and the first groove (701) jointly define the first sub-flow channel (601); and the second split body (50) and the second groove (702) jointly define the second sub-flow channel (602); The first switch valve (21) and the first expansion valve (11) are both installed on the first split body (40); or the first switch valve (21) and the first expansion valve (11) are both installed on the second split body (50).

4. The valve group integrated module according to claim 3, characterized in that: At least one of the first groove (701) and the second groove (702) is a curved groove.

5. The valve group integrated module according to claim 2, characterized in that: The axis of the valve core of the first switch valve (21) is perpendicular to the plane where the first sub-channel (601) is located and the plane where the second sub-channel (602) is located.

6. The valve group integrated module according to any one of claims 1 to 5, characterized in that: The valve group integrated module further includes a third expansion valve (13), and the base (60) is further formed with a battery pack heat exchanger inlet interface (45) for connecting to a refrigerant inlet of a battery pack heat exchanger (84) outside the base (60). The battery pack heat exchanger inlet interface (45) is communicated with the second flow channel, and the third expansion valve (13) is arranged on the base (60) and communicated with the second flow channel. By the conduction or cutoff of the second switch valve (22), the throttling or cutoff of the second expansion valve (12), and the throttling or cutoff of the third expansion valve (13), the refrigerant flowing into the second flow channel from the outdoor heat exchanger outlet interface (48) can flow out from the reflux inlet interface (46) via the second switch valve (22), or flow out from the indoor evaporator inlet interface (42) via the second expansion valve (12), or flow out from the battery pack heat exchanger inlet interface (45) via the third expansion valve (13), or flow out from the indoor evaporator inlet interface (42) and the battery pack heat exchanger inlet interface (45) via the second expansion valve (12) and the third expansion valve (13) respectively.

7. The valve group integrated module according to claim 6, characterized in that: The second flow channel includes a third sub-flow channel (603) and a fourth sub-flow channel (604), the outdoor heat exchanger outlet interface (48) is connected to the third sub-flow channel (603), the return inlet interface (46) is connected to the fourth sub-flow channel (604), the inlet of the second switch valve (22) is connected to the third sub-flow channel (603), the outlet of the second switch valve (22) is connected to the fourth sub-flow channel (604), the inlet of the second expansion valve (12) is connected to the third sub-flow channel (603), the outlet of the second expansion valve (12) is connected to the indoor evaporator inlet interface (42), the inlet of the third expansion valve (13) is connected to the third sub-flow channel (603), and the outlet of the third expansion valve (13) is connected to the battery pack heat exchanger inlet interface (45).

8. The valve group integrated module according to claim 7, characterized in that: The base (60) comprises a first split body (40) and a second split body (50) that cooperate with each other; the first split body (40) is recessed inwardly toward the surface of the second split body (50) to form a third groove (703) and a fourth groove (704); the second split body (50) and the third groove (703) together define the third sub-flow channel (603); and the second split body (50) and the fourth groove (704) together define the fourth sub-flow channel (604); The second on-off valve (22), the second expansion valve (12), and the third expansion valve (13) are all installed on the first split body (40); or the second on-off valve (22), the second expansion valve (12), and the third expansion valve (13) are all installed on the second split body (50).

9. The valve group integrated module according to claim 8, characterized in that: At least one of the third groove (703) and the fourth groove (704) is a curved groove.

10. The valve group integrated module according to claim 7, characterized in that: An indoor evaporator outlet interface (47) for connecting to the outlet of the indoor evaporator (85) is also formed on the base (60), and the indoor evaporator outlet interface (47) is communicated with the fourth sub-channel (604) so that the refrigerant flowing from the indoor evaporator outlet interface (47) into the fourth sub-channel (604) can flow out from the return inlet interface (46).

11. The valve group integrated module according to claim 10, characterized in that: The valve group integrated module further includes a temperature sensor (30). A first through hole (517), a second through hole (518), and a third through hole (519) are formed on the fourth sub-channel (604). The second through hole (518) is located between the first through hole (517) and the third through hole (519). The first through hole (517) is communicated with the indoor evaporator outlet interface (47). The third through hole (519) is communicated with the return inlet interface (46). The temperature sensor (30) is arranged on the base (60), and a detection end of the temperature sensor (30) passes through the second through hole (518) and is located in the fourth sub-channel (604).

12. The valve group integrated module according to claim 7, characterized in that: A battery pack heat exchanger outlet interface (41) for connecting to the refrigerant outlet of the battery pack heat exchanger (84) outside the base body (60) is also formed on the base body (60). The battery pack heat exchanger outlet interface (41) is communicated with the fourth sub-channel (604) so that the refrigerant flowing from the battery pack heat exchanger outlet interface (41) into the fourth sub-channel (604) can flow out from the reflux inlet interface (46).

13. The valve group integrated module according to claim 7, characterized in that: The axis of the valve core of the second switch valve (22) is perpendicular to the plane where the third sub-flow channel (603) is located and the plane where the fourth sub-flow channel (604) is located.

14. A vehicle thermal management system, characterized in that: A valve group integrated module comprising any one of claims 1-13.

15. A vehicle, characterized in that: Including the vehicle thermal management system as claimed in claim 14.

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