Valve group integrated module, vehicle thermal management system and vehicle

Abstract

The present disclosure relates to a valve group integrated module, a vehicle thermal management system and a vehicle, the module comprising a substrate and a valve group arranged on the substrate, the valve group comprising a first switch valve, a second switch valve and a first expansion valve; the substrate is formed with an indoor condenser outlet interface for connecting to the outlet of an indoor condenser outside the substrate, an outdoor heat exchanger outlet interface for connecting to the outlet of an outdoor heat exchanger outside the substrate, and a battery pack heat exchanger inlet interface for connecting to the refrigerant inlet of a battery pack heat exchanger outside the substrate; a first flow channel is formed in the substrate, the inlet of the first switch valve is connected to the indoor condenser outlet interface, the outlet of the first switch valve is connected to the first flow channel, the inlet of the first expansion valve is connected to the first flow channel, the outlet of the first expansion valve is connected to the battery pack heat exchanger inlet interface, the outdoor heat exchanger outlet interface is connected to the inlet of the second switch valve, and the outlet of the second switch valve is connected to the first flow channel.

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 an important component of the vehicle, which can achieve functions such as changing the temperature environment in the passenger compartment to improve the driving experience of the driver and passengers. In the prior art, in order to enable the vehicle thermal management system to have different working modes and enable the refrigerant to have different flow paths in different working modes, it is usually necessary to set up multiple valve components (such as expansion valves, switch valves, etc.), and multiple valve components are connected to corresponding devices through pipes. In some vehicle thermal management systems, multiple valve components may need to be connected to the same device, which requires the use of multiple pipes and joints, resulting in an increase in the number of pipes and joints. In addition, the valve components are scattered on the pipeline, resulting in a complex and messy pipeline layout, which is not conducive to installation and subsequent maintenance. 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 objective, according to one aspect of the present disclosure, the present disclosure provides a valve group integrated module, comprising a base and a valve group arranged on the base, wherein the valve group comprises a first switch valve, a second 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, an outdoor heat exchanger outlet interface for connecting to the outlet of the outdoor heat exchanger outside the base, and a battery pack heat exchanger inlet interface for connecting to the refrigerant inlet of the battery pack heat exchanger outside the base;

[0006] A first flow channel is formed in the base, the inlet of the first switch valve is communicated with the indoor condenser outlet interface, the outlet of the first switch valve is communicated with the first flow channel, the inlet of the first expansion valve is communicated with the first flow channel, the outlet of the first expansion valve is communicated with the battery pack heat exchanger inlet interface, the outdoor heat exchanger outlet interface is communicated with the inlet of the second switch valve, and the outlet of the second switch valve is communicated with the first flow channel.

[0007] Optionally, the valve group also includes a second expansion valve, and an indoor evaporator inlet interface for connecting to the inlet of the indoor evaporator outside the base is formed on the base, the inlet of the second expansion valve is connected to the first flow channel, and the outlet of the second expansion valve is connected to the indoor evaporator inlet interface.

[0008] Optionally, the valve group also includes a third switch valve, an outdoor heat exchanger inlet interface connected to the inlet of the outdoor heat exchanger is formed on the base, a second flow channel is also formed in the base, the indoor condenser outlet interface is connected to the second flow channel, the inlet of the first switch valve is connected to the second flow channel, the inlet of the third switch valve is connected to the second flow channel, and the outlet of the third switch valve is connected to the outdoor heat exchanger inlet interface.

[0009] Optionally, by turning on or off the first switch valve and the third switch valve, the refrigerant flowing into the second flow channel from the indoor condenser outlet interface can flow into the first flow channel via the first switch valve, or flow out from the outdoor heat exchanger inlet interface via the third switch valve.

[0010] Optionally, the valve group also includes a third expansion valve, and a third flow channel is also formed in the base. The inlet interface of the outdoor heat exchanger is connected to the third flow channel, the outlet of the third switch valve is connected to the third flow channel, the inlet of the third expansion valve is connected to the second flow channel, and the outlet of the third expansion valve is connected to the third flow channel.

[0011] Optionally, by turning on or off the third switching valve and throttling or cutting off the third expansion valve, the refrigerant flowing into the second flow channel from the indoor condenser outlet interface can flow into the third flow channel via the third switching valve, or flow into the third flow channel via the third expansion valve.

[0012] Optionally, the base includes a first split body and a second split body, the first split body includes a first connecting surface, the second split body includes a second connecting surface, the first connecting surface is sealingly connected to the second connecting surface, the first connecting surface is recessed inwardly to form a first groove, a second groove and a third groove, the second connecting surface and the first groove jointly define the first flow channel, the second connecting surface and the second groove jointly define the second flow channel, and the second connecting surface and the third groove jointly define the third flow channel;

[0013] Among them, the first switch valve, the second switch valve, the third switch valve, the first expansion valve and the third expansion valve are all arranged on the first split body, or the first switch valve, the second switch valve, the third switch valve, the first expansion valve and the third expansion valve are all arranged on the second split body.

[0014] Optionally, at least one of the first groove, the second groove and the third groove is a curved groove.

[0015] Optionally, the valve group also includes a fourth switch valve, and a reflux inlet interface for connecting to the inlet of a compressor outside the base or the inlet of a gas-liquid separator connected to the compressor is formed on the base, and a fourth flow channel is also formed in the base, the outdoor heat exchanger outlet interface is connected to the fourth flow channel, the inlet of the second switch valve is connected to the fourth flow channel, the inlet of the fourth switch valve is connected to the fourth flow channel, and the outlet of the fourth switch valve is connected to the reflux inlet interface.

[0016] Optionally, a fifth flow channel is also formed in the base, the outlet of the fourth switch valve is connected to the fifth flow channel, the reflux inlet interface is connected to the fifth flow channel, and a battery pack heat exchanger outlet interface for connecting to the refrigerant outlet of the battery pack heat exchanger is also formed on the base, and the battery pack heat exchanger outlet interface is connected to the fifth flow channel.

[0017] Optionally, a fifth flow channel is also formed in the base, the outlet of the fourth switch valve is connected to the fifth flow channel, the reflux inlet interface is connected to the fifth flow channel, and 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 fifth flow channel.

[0018] 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 fifth flow 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 fifth flow channel.

[0019] Optionally, the base includes a first split body and a second split body, the first split body includes a first connecting surface, the second split body includes a second connecting surface, the first connecting surface is sealingly connected to the second connecting surface, the first connecting surface is recessed inwardly to form a fourth groove and a fifth groove, the second connecting surface and the fourth groove jointly define the fourth flow channel, and the second connecting surface and the fifth groove jointly define the fifth flow channel;

[0020] Wherein, the fourth switch valve is arranged on the first sub-body or the second sub-body.

[0021] Optionally, at least one of the fourth groove and the fifth groove is a curved groove.

[0022] According to another aspect of the present disclosure, a vehicle thermal management system is provided, comprising the above-mentioned valve group integrated module.

[0023] According to another aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle thermal management system

[0024] Through the above technical solution, since the first switch valve, the second switch valve and the first expansion valve are all integrated on the base and connected to the first flow channel formed in the base, the inlet of the first expansion valve does not need to be connected to the outlet of the first switch valve and the outlet of the second switch valve respectively through multiple different pipes. That is to say, in the present disclosure, the first flow channel formed in the base can replace the inlet of the first expansion valve for connecting the multiple external pipes of the outlet of the first switch valve and the outlet of the second switch valve, thereby reducing the number of pipes and joints between the first switch valve, the second switch valve and the first expansion valve, and reducing the complexity of the pipeline layout.

[0025] Furthermore, since an indoor condenser outlet interface, an outdoor heat exchanger outlet interface, and a battery pack heat exchanger inlet interface are formed on the base, and the first switch valve arranged on the base is connected between the indoor condenser outlet interface and the first flow channel, the second switch valve is connected between the outdoor heat exchanger outlet interface and the first flow channel, and the first expansion valve is connected between the first flow channel and the battery pack heat exchanger inlet interface, during assembly, it is only necessary to connect the outlet of the indoor condenser with the indoor condenser outlet interface through a pipe, connect the outlet of the outdoor heat exchanger with the outdoor heat exchanger outlet interface through a pipe, and connect the refrigerant inlet of the battery pack heat exchanger with the battery pack heat exchanger inlet interface through a pipe, so as to realize the connection between the indoor condenser and the outdoor heat exchanger and the battery pack heat exchanger, and there is no need to complicately assemble the first switch valve, the second switch valve and the first expansion valve between the indoor condenser, the outdoor heat exchanger and the battery pack heat exchanger through multiple connecting pipes, and the assembly process is simple and convenient. In addition, the first expansion valve, the first switch valve and the second switch valve are all arranged on the base and form a module with the base, which can solve the problems of high space occupancy, inconvenient assembly and maintenance caused by the scattered distribution of the first expansion valve, the first switch valve and the second switch valve in the vehicle.

[0026] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0028] Figure 1 is a perspective view of a valve group integrated module provided by an exemplary embodiment of the present disclosure;

[0029] Figure 2 is an exploded view of a valve group integrated module provided by an exemplary embodiment of the present disclosure;

[0030] 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;

[0031] Figure 4 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);

[0032] Figure 5 is a front 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 6 is a flow path schematic diagram of a vehicle thermal management system provided by an exemplary embodiment of the present disclosure;

[0034] Figure 7 It is a flow path schematic diagram of a vehicle thermal management system provided by an exemplary embodiment of the present disclosure, wherein valves integrated on the valve group integrated module and interfaces on the valve group integrated module are also shown.

[0035] Description of Reference Numerals

[0036] 11-first switch valve; 12-second switch valve; 13-third switch valve; 14-fourth switch valve; 21-first expansion valve; 22-second expansion valve; 23-third expansion valve; 30-temperature sensor; 111-first switch valve mounting hole; 112-first switch valve positioning hole; 121-second switch valve mounting hole; 122-second switch valve positioning hole; 131-third switch valve mounting hole; 132-third switch valve positioning hole; 141-fourth switch valve mounting hole; 142-fourth switch valve positioning hole; 211-first expansion valve mounting hole; 212-first expansion valve fastening hole; 221-Second expansion valve mounting hole; 222-Second expansion valve fastening hole; 231-Third expansion valve mounting hole; 232-Third expansion valve fastening hole; 61-Battery pack heat exchanger outlet interface; 62-Return inlet interface; 63-Indoor evaporator outlet interface; 64-Outdoor heat exchanger outlet interface; 65-Indoor evaporator inlet interface; 66-Outdoor heat exchanger inlet interface; 67-Indoor condenser outlet interface; 68-Battery pack heat exchanger inlet interface; 101-First flow channel; 102-Second flow channel; 103-Third flow channel; 104-Fourth flow channel; 105-Fifth flow channel; 70 1-first groove; 702-second groove; 703-third groove; 704-fourth groove; 705-fifth groove; 802-second flow channel inlet; 804-third flow channel outlet; 810-fourth flow channel inlet; 803-first switch valve inlet interface; 808-first switch valve outlet interface; 809-second switch valve inlet interface; 807-second switch valve outlet interface; 801-third switch valve inlet interface; 806-third switch valve outlet interface; 811-fourth switch valve inlet interface; 812-fourth switch valve outlet interface; 819-first expansion valve inlet interface; 818-second expansion valve inlet interface; 817-third expansion valve inlet interface; 805-third expansion valve outlet interface; 813-first through hole; 814-second through hole; 815-third through hole; 816-fourth through hole; 60-base; 40-first split body; 401-first connection surface; 50-second split body; 501-second connection surface; 91-compressor; 92-indoor condenser; 93-outdoor heat exchanger; 94-indoor evaporator; 95-gas-liquid separator; 96-battery pack heat exchanger; 97-battery pack; 98-PTC air heater; 99-PTC water heater. DETAILED DESCRIPTION

[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0038] In the present disclosure, unless otherwise specified, the terms "first", "second", etc. are used only to distinguish descriptions and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "connected", "connected", 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.

[0039] For a hybrid vehicle or a pure electric vehicle, a battery pack 97 is mounted on the hybrid vehicle or the pure electric vehicle. To ensure that the battery pack 97 is within a suitable operating temperature range, when the temperature of the battery pack 97 is too high, the battery pack 97 needs to be cooled. Figure 6 As shown, in order to utilize the cold capacity of the refrigerant to cool the battery pack 97, a battery pack heat exchanger 96 connected in series with the battery pack 97 is provided in the vehicle thermal management system provided by the present invention. When the battery pack 97 is cooled independently, the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 91 releases heat to the outside atmosphere in the outdoor heat exchanger 93, and then flows into the battery pack heat exchanger 96 after throttling and reducing the pressure by the first expansion valve 21. In the battery pack heat exchanger 96, the low-temperature and low-pressure refrigerant absorbs the heat of the high-temperature coolant, so that the low-temperature coolant flows out of the coolant outlet of the battery pack heat exchanger 96. The low-temperature coolant can absorb the heat of the battery pack 97 when flowing through the battery pack 97, thereby cooling the battery pack 97.

[0040] For the conventional passenger compartment heating mode, Figure 6 As shown, the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 91 releases heat to the passenger compartment in the indoor condenser 92 to increase the temperature of the passenger compartment, and the refrigerant flowing out of the outlet of the indoor condenser 92 after releasing heat absorbs heat from the outside atmosphere in the outdoor heat exchanger 93 and then returns to the compressor 91. However, when the temperature of the outside environment is not much different from the temperature of the refrigerant in the outdoor heat exchanger 93, the amount of heat absorbed by the refrigerant in the outdoor heat exchanger 93 is limited, which affects the heating capacity of the passenger compartment. In this case, since the battery pack 97 generates heat during operation, the vehicle thermal management system provided in the present disclosure also has a passenger compartment heating mode that utilizes the heat of the battery pack 97. Specifically, as Figure 6 As shown, the refrigerant flowing out of the outlet of the indoor condenser 92 does not flow into the outdoor heat exchanger 93, but flows into the battery pack heat exchanger 96 after throttling and reducing the pressure by the first expansion valve 21, and absorbs the heat of the high-temperature coolant in the battery pack heat exchanger 96, thereby transferring the heat generated by the battery pack 97 to the air-conditioning system for heating the passenger compartment.

[0041] In different working modes of the vehicle thermal management system, it is necessary to control the inlet of the first expansion valve 21 to be connected to different devices. For example, in the independent cooling mode of the battery pack 97, the inlet of the first expansion valve 21 needs to be connected to the outlet of the outdoor heat exchanger 93, and in the passenger compartment heating mode using the heat of the battery pack 97, the inlet of the first expansion valve 21 needs to be connected to the outlet of the indoor condenser 92. Therefore, a first switch valve 11 needs to be set between the outlet of the indoor condenser 92 and the inlet of the first expansion valve 21, and a second switch valve 12 needs to be set between the outlet of the outdoor heat exchanger 93 and the inlet of the first expansion valve 21. However, this will increase the number of pipes and joints in the vehicle thermal management system, resulting in a very complicated pipe layout, and these valves are scattered on the pipes, which is not conducive to installation.

[0042] 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 Figures 1 to 7 As shown, a valve group integrated module is provided, comprising a base body 60 and a valve group arranged on the base body 60, wherein the valve group comprises a first switch valve 11, a second switch valve 12 and a first expansion valve 21. Figure 3 and Figure 4 As shown, the base 60 is formed with an indoor condenser outlet interface 67 for connecting to the outlet of the indoor condenser 92 outside the base 60, an outdoor heat exchanger outlet interface 64 for connecting to the outlet of the outdoor heat exchanger 93 outside the base 60, and a battery pack heat exchanger inlet interface 68 for connecting to the refrigerant inlet of the battery pack heat exchanger 96 outside the base 60. Figures 3 to 5 As shown, a first flow channel 101 is formed in the base 60, the inlet of the first switch valve 11 is connected to the indoor condenser outlet interface 67, the outlet of the first switch valve 11 is connected to the first flow channel 101, the inlet of the first expansion valve 21 is connected to the first flow channel 101, the outlet of the first expansion valve 21 is connected to the battery pack heat exchanger inlet interface 68, the outdoor heat exchanger outlet interface 64 is connected to the inlet of the second switch valve 12, and the outlet of the second switch valve 12 is connected to the first flow channel 101.

[0043] When the vehicle thermal management system is in the independent cooling mode of the battery pack 97, the second switch valve 12 is open and can conduct the refrigerant, the first switch valve 11 is closed and does not allow the refrigerant to pass through, and the first expansion valve 21 is open and can allow the refrigerant to pass through and throttle. The high-temperature and high-pressure refrigerant flowing out of the compressor 91 outlet releases heat in the outdoor heat exchanger 93, and the refrigerant flowing out of the outdoor heat exchanger 93 outlet flows into the second switch valve 12 through the outdoor heat exchanger outlet interface 64, and flows into the first flow channel 101 from the outlet of the second switch valve 12. The refrigerant in the first flow channel 101 is throttled and reduced in pressure by the first expansion valve 21 and then flows out from the battery pack heat exchanger inlet interface 68, and then flows into the battery pack heat exchanger 96 to cool the battery pack 97. In this mode, since the first switch valve 11 connected to the first flow channel 101 is in a closed state, the refrigerant in the first flow channel 101 cannot flow to the indoor condenser outlet interface 67 through the first switch valve 11. Therefore, the first switch valve 11 can prevent the refrigerant in the first flow channel 101 from flowing back into the indoor condenser 92.

[0044] When the vehicle thermal management system is in the passenger compartment heating mode utilizing the heat of the battery pack 97, the first switch valve 11 is in an open state and can conduct the refrigerant, the second switch valve 12 is in a closed state and does not allow the refrigerant to pass through, and the first expansion valve 21 is in an open state and can allow the refrigerant to pass through and throttle. The high-temperature and high-pressure refrigerant flowing out of the compressor 91 outlet first flows into the indoor condenser 92, where it releases heat to the passenger compartment to increase the temperature of the passenger compartment. The refrigerant flowing out of the outlet of the indoor condenser 92 flows into the first switch valve 11 through the indoor condenser outlet interface 67, and flows out from the outlet of the first switch valve 11 into the first flow channel 101. The refrigerant in the first flow channel 101 flows out from the battery pack heat exchanger inlet interface 68 after throttling and reducing the pressure through the first expansion valve 21, and then flows into the battery pack heat exchanger 96 to absorb the heat of the battery pack 97 and finally return to the compressor 91. In this mode, since the second switch valve 12 connected to the first flow channel 101 is in a closed state, the refrigerant in the first flow channel 101 cannot flow to the outdoor heat exchanger outlet interface 64 through the second switch valve 12. Therefore, the second switch valve 12 can prevent the refrigerant in the first flow channel 101 from flowing back into the outdoor heat exchanger 93.

[0045] Through the above technical solution, since the first switch valve 11, the second switch valve 12 and the first expansion valve 21 are all integrated on the base 60 and connected to the first flow channel 101 formed in the base 60, the inlet of the first expansion valve 21 does not need to be connected to the outlet of the first switch valve 11 and the outlet of the second switch valve 12 respectively through multiple different pipes. That is to say, in the present disclosure, the first flow channel 101 formed in the base 60 can replace the inlet of the first expansion valve 21 for connecting the multiple external pipes of the outlet of the first switch valve 11 and the outlet of the second switch valve 12, thereby reducing the number of pipes and joints between the first switch valve 11 and the second switch valve 12 and the first expansion valve 21, and reducing the complexity of the pipeline layout.

[0046] Furthermore, since the indoor condenser outlet interface 67, the outdoor heat exchanger outlet interface 64, and the battery pack heat exchanger inlet interface 68 are formed on the base 60, and the first switch valve 11 arranged on the base 60 is connected between the indoor condenser outlet interface 67 and the first flow channel 101, the second switch valve 12 is connected between the outdoor heat exchanger outlet interface 64 and the first flow channel 101, and the first expansion valve 21 is connected between the first flow channel 101 and the battery pack heat exchanger inlet interface 68, during assembly, it is only necessary to connect the outlet of the indoor condenser 92 to the indoor condenser through a pipeline. The outlet interface 67 is connected, the outlet of the outdoor heat exchanger 93 is connected to the outdoor heat exchanger outlet interface 64 through a pipeline, and the refrigerant inlet of the battery pack heat exchanger 96 is connected to the battery pack heat exchanger inlet interface 68 through a pipeline, so that the connection between the indoor condenser 92 and the outdoor heat exchanger 93 and the battery pack heat exchanger 96 can be realized, and there is no need to assemble the first switch valve 11, the second switch valve 12 and the first expansion valve 21 between the indoor condenser 92, the outdoor heat exchanger 93 and the battery pack heat exchanger 96 through multiple connecting pipes, and the assembly process is simple and convenient. In addition, the first expansion valve 21, the first switch valve 11 and the second switch valve 12 are all arranged on the base 60, and form a module with the base 60, which can solve the problems of high space occupancy, inconvenience in assembly and maintenance caused by the scattered distribution of the first expansion valve 21, the first switch valve 11 and the second switch valve 12 in the vehicle.

[0047] Optionally, to improve the driving experience of the driver and passengers, the vehicle thermal management system may have a passenger compartment cooling mode, such as Figure 6 As shown, in the passenger compartment cooling mode, the refrigerant flowing out of the outlet of the outdoor heat exchanger 93 flows into the indoor evaporator 94 after being throttled and depressurized by the second expansion valve 22, and absorbs the heat of the passenger compartment in the indoor evaporator 94 to achieve the cooling of the passenger compartment. Since the inlet of the second expansion valve 22 is also connected to the outlet of the outdoor heat exchanger 93, in order to improve the integration of the valve group integrated module provided by the present disclosure, the second expansion valve 22 can be integrated. Specifically, as Figure 1 and Figure 2As shown, the valve group may further include a second expansion valve 22, such as Figure 3 As shown, an indoor evaporator inlet interface 65 for connecting to the inlet of the indoor evaporator 94 outside the base body 60 is also formed on the base body 60, the inlet of the second expansion valve 22 is communicated with the first flow channel 101, and the outlet of the second expansion valve 22 is communicated with the indoor evaporator inlet interface 65. In this way, the first flow channel 101 can not only replace the inlet of the first expansion valve 21 for connecting to the outlet of the first switch valve 11 and the outlet of the second switch valve 12, but also replace the inlet of the second expansion valve 22 for connecting to the outlet of the first switch valve 11 and the outlet of the second switch valve 12, so that the valve group integrated module provided by the present disclosure has a higher degree of integration.

[0048] When the passenger compartment is cooled, the second switch valve 12 is in an open state, the second expansion valve 22 is in an open state, and the first switch valve 11 is in a closed state. The refrigerant flowing out of the outlet of the outdoor heat exchanger 93 flows into the second switch valve 12 from the outlet interface 64 of the outdoor heat exchanger, and flows into the first flow channel 101 from the outlet of the second switch valve 12. The refrigerant in the first flow channel 101 flows out from the inlet interface 65 of the indoor evaporator after throttling and reducing pressure through the second expansion valve 22, and flows into the indoor evaporator 94. When the passenger compartment is cooled, since the first switch valve 11 is in a closed state, the refrigerant in the first flow channel 101 will not flow back to the indoor condenser 92 through the first switch valve 11. When the passenger compartment is cooled, if the battery pack 97 has a cooling demand, the first expansion valve 21 can also be opened, so that the refrigerant in the first flow channel 101 can be divided into two streams, one stream flows to the battery pack heat exchanger 96 through the first expansion valve 21, and the other stream flows to the indoor evaporator 94 through the second expansion valve 22.

[0049] In addition, if the passenger compartment is cooled, Figure 6 As shown, the refrigerant flowing out of the outlet of the compressor 91 first flows into the indoor condenser 92. At this time, since no fan or blower blows air to the indoor condenser 92, the refrigerant does not release heat to the passenger compartment in the indoor condenser 92, that is, the indoor condenser 92 is used as a flow passage, and the refrigerant flowing out of the outlet of the indoor condenser 92 needs to enter the outdoor heat exchanger 93 to release heat. Therefore, the outlet of the indoor condenser 92 can be connected to the inlet of the outdoor heat exchanger 93 via the third switch valve 13.

[0050] In order to integrate the third switch valve 13 into the valve group integrated module, and further reduce the number of connecting pipes and joints between the outlet of the indoor condenser 92 and the inlet of the third switch valve 13 and the inlet of the first switch valve 11, as an exemplary embodiment, the valve group further includes the third switch valve 13, such as Figure 4 and Figure 5As shown, an outdoor heat exchanger inlet interface 66 connected to the inlet of the outdoor heat exchanger 93 is also formed on the base 60, a second flow channel 102 is also formed in the base 60, the indoor condenser outlet interface 67 is connected to the second flow channel 102, the inlet of the first switch valve 11 is connected to the second flow channel 102, the inlet of the third switch valve 13 is connected to the second flow channel 102, and the outlet of the third switch valve 13 is connected to the outdoor heat exchanger inlet interface 66.

[0051] In this way, the refrigerant flowing into the second flow channel 102 from the indoor condenser outlet interface 67 can flow into the first flow channel 101 through the first switch valve 11, or flow out from the outdoor heat exchanger inlet interface 66 through the third switch valve 13 by turning on or off the first switch valve 11 and the third switch valve 13. In other words, the refrigerant flowing out of the outlet of the indoor condenser 92 can enter the second flow channel 102 through the indoor condenser outlet interface 67. If the first switch valve 11 is in an open state at this time, the refrigerant in the second flow channel 102 can flow into the first flow channel 101 through the first switch valve 11, and then can further flow into the battery pack heat exchanger 96 through the first expansion valve 21 and / or flow into the indoor evaporator 94 through the second expansion valve 22; if the third switch valve 13 is in an open state, the refrigerant in the second flow channel 102 can flow out from the outdoor heat exchanger inlet interface 66 through the third switch valve 13, and then can further flow into the outdoor heat exchanger 93.

[0052] Since the inlet of the third switch valve 13 and the inlet of the first switch valve 11 are both connected to the second flow channel 102 formed in the base 60, and the second flow channel 102 is also connected to the indoor condenser outlet interface 67 for connecting to the outlet of the indoor condenser 92, the second flow channel 102 in the base 60 is equivalent to replacing the multiple pipes and joints connected between the outlet of the indoor condenser 92 and the inlet of the first switch valve 11 and the inlet of the third switch valve 13, further improving the integration of the valve group integrated module and simplifying the complexity of the pipeline layout of the vehicle thermal management system.

[0053] In the vehicle thermal management system, for the conventional passenger compartment heating mode, the refrigerant after releasing heat in the indoor condenser 92 needs to enter the outdoor heat exchanger 93 after throttling and reducing pressure through the third expansion valve 23 to absorb heat from the outside atmosphere. The third expansion valve 23 and the third switch valve 13 are connected in parallel between the indoor condenser 92 and the outdoor heat exchanger 93. In order to integrate the third expansion valve 23, the valve group may further include the third expansion valve 23, such as Figure 4 and Figure 5As shown, a third flow channel 103 can also be formed in the base 60, the outdoor heat exchanger inlet interface 66 is connected to the third flow channel 103, the outlet of the third switch valve 13 is connected to the third flow channel 103, and thus is connected to the outdoor heat exchanger inlet interface 66 through the third flow channel 103, the inlet of the third expansion valve 23 is connected to the second flow channel 102, and the outlet of the third expansion valve 23 is connected to the third flow channel 103, and thus is connected to the outdoor heat exchanger inlet interface 66 through the third flow channel 103.

[0054] In this way, by the conduction or cutoff of the third switch valve 13 and the throttling or cutoff of the third expansion valve 23, the refrigerant flowing into the second flow channel 102 from the indoor condenser outlet interface 67 can flow into the third flow channel 103 via the third switch valve 13, or flow into the third flow channel 103 via the third expansion valve 23, so that the refrigerant flowing out of the outlet of the indoor condenser 92 can selectively flow into the outdoor heat exchanger 93 after throttling and reducing the pressure via the third expansion valve 23, or directly flow into the outdoor heat exchanger 93 without being throttled or affected via the third switch valve 13. Here, it should be noted that the first expansion valve 21, the second expansion valve 22 and the third expansion valve 23 are valves that can achieve throttling and reducing pressure. 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 opened, 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.

[0055] Since the second flow channel 102 is connected to the indoor condenser outlet interface 67, the inlet of the first switch valve 11, the inlet of the third expansion valve 23, and the inlet of the third switch valve 13 are all connected to the second flow channel 102, and the second flow channel 102 is equivalent to replacing the multiple pipes and joints connected between the outlet of the indoor condenser 92 and the inlet of the first switch valve 11, the inlet of the third switch valve 13, and the inlet of the third expansion valve 23, further reducing the number of pipes in the vehicle thermal management system. The third flow channel 103 is connected to the outdoor heat exchanger inlet interface 66, and the outlet of the third switch valve 13 and the outlet of the third expansion valve 23 are both connected to the third flow channel 103. The third flow channel 103 is equivalent to replacing the multiple pipes connected between the outlet of the third switch valve 13 and the outlet of the third expansion valve 23 and the inlet of the outdoor heat exchanger 93, thereby achieving the purpose of reducing the number of pipes in the vehicle thermal management system.

[0056] In addition, for the conventional passenger compartment heating mode, the refrigerant flowing out of the outlet of the outdoor heat exchanger 93 flows directly into the inlet of the compressor 91 or flows into the inlet of the compressor 91 after passing through the gas-liquid separator 95, and a third switch valve 13 is provided between the outlet of the outdoor heat exchanger 93 and the inlet of the compressor 91 or the inlet of the gas-liquid separator 95 connected to the compressor 91. Since the inlet of the third switch valve 13 and the inlet of the first switch valve 11 are both connected to the outlet of the outdoor heat exchanger 93, in order to integrate the third switch valve 13, optionally, the valve group further includes a fourth switch valve 14, such as Figure 3 As shown, a reflux inlet interface 62 for connecting to the inlet of a compressor 91 outside the base 60 or the inlet of a gas-liquid separator 95 connected to the compressor 91 is also formed on the base 60, and a fourth flow channel 104 is also formed in the base 60, the outdoor heat exchanger outlet interface 64 is connected to the fourth flow channel 104, the inlet of the second switch valve 12 is connected to the fourth flow channel 104, the inlet of the fourth switch valve 14 is connected to the fourth flow channel 104, and the outlet of the fourth switch valve 14 is connected to the reflux inlet interface 62.

[0057] Since the fourth flow channel 104 is connected to the outdoor heat exchanger outlet interface 64, the inlet of the second switch valve 12 and the inlet of the fourth switch valve 14 are both connected to the fourth flow channel 104. The fourth flow channel 104 in the base 60 mentions multiple pipes connecting the outlet of the outdoor heat exchanger 93 with the inlet of the second switch valve 12 and the inlet of the fourth switch valve 14, further reducing the number of pipes in the vehicle thermal management system.

[0058] like Figure 6 As shown, the refrigerant flowing out of the refrigerant outlet of the battery pack heat exchanger 96 also needs to flow into the inlet of the compressor 91 or first pass through the gas-liquid separator 95 and then flow into the inlet of the compressor 91. In order to reduce the number of connecting pipes between the refrigerant outlet of the battery pack heat exchanger 96 and the outlet of the fourth switch valve 14 and the compressor 91 or the gas-liquid separator 95, in one embodiment provided by the present disclosure, as Figure 4 and Figure 5 As shown, a fifth flow channel 105 is also formed in the base 60, the outlet of the fourth switch valve 14 is communicated with the fifth flow channel 105, the reflux inlet interface 62 is communicated with the fifth flow channel 105, and a battery pack heat exchanger outlet interface 61 for connecting to the refrigerant outlet of the battery pack heat exchanger 96 is also formed on the base 60, and the battery pack heat exchanger outlet interface 61 is communicated with the fifth flow channel 105. In this way, the refrigerant flowing out of the refrigerant outlet of the battery pack heat exchanger 96 or the refrigerant flowing out of the outlet of the fourth switch valve 14 can flow into the fifth flow channel 105, and then flow into the compressor 91 or the gas-liquid separator 95 connected to the compressor 91 through the reflux inlet interface 62.

[0059] In addition, the refrigerant flowing out of the outlet of the indoor evaporator 94 also needs to flow into the inlet of the compressor 91 or first pass through the gas-liquid separator 95 and then flow into the inlet of the compressor 91. Optionally, Figure 3 and Figure 5 As shown, an indoor evaporator outlet interface 63 for connecting to the outlet of the indoor evaporator 94 may also be formed on the base 60, and the indoor evaporator outlet interface 63 is communicated with the fifth flow channel 105. In this way, the refrigerant flowing out of the outlet of the indoor evaporator 94 may also flow into the compressor 91 or the gas-liquid separator 95 connected to the compressor 91 through the fifth flow channel 105 and the reflux inlet interface 62 communicated with the fifth flow channel 105.

[0060] In order to detect the temperature of the refrigerant flowing out of the outlet of the indoor evaporator 94, the temperature sensor 30 can also be integrated into the valve group integrated module. As an optional embodiment, Figure 1 , Figure 2 , Figure 5 As shown, the valve group integrated module also includes a temperature sensor 30, and a first through hole 813, a second through hole 814 and a third through hole 815 are formed on the fifth flow channel 105, the second through hole 814 is located between the first through hole 813 and the third through hole 815, the first through hole 813 is connected to the indoor evaporator outlet interface 63, and the third through hole 815 is connected to the reflux inlet interface 62, and 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 814 and is located in the fourth sub-flow channel. The refrigerant flowing out from the outlet of the indoor evaporator 94 flows into the fifth flow channel 105 through the indoor evaporator outlet interface 63 and the first through hole 813, and flows toward the third through hole 815 in the fifth flow channel 105, so as to flow into the inlet of the compressor 91 or the inlet of the gas-liquid separator 95 through the reflux inlet interface 62 connected to the third through hole 815. Since the detection end of the temperature sensor 30 is located between the first through hole 813 and the second through hole 814, the refrigerant flowing out from the outlet of the indoor evaporator 94 will pass through the detection end of the temperature sensor 30 when flowing in the fifth flow channel 105, so that the temperature sensor 30 can detect the temperature of the refrigerant in the fifth flow channel 105.

[0061] Alternatively, if Figure 4 and Figure 5 As shown, a fourth through hole 816 may be formed on the fifth flow channel 105 , and the fourth through hole 816 is used to communicate with the battery pack heat exchanger outlet interface 61 .

[0062] Alternatively, if Figure 5As shown, the first flow channel 101 may be formed with a first switch valve outlet interface 808, a second switch valve outlet interface 807, a first expansion valve inlet interface 819, and a second expansion valve inlet interface 818. The first switch valve outlet interface 808 may be indirectly connected to the outlet of the first switch valve 11 through the first transition flow channel, or directly connected to the outlet of the first switch valve 11 without passing through the transition flow channel. The second switch valve outlet interface 807 may be indirectly connected to the outlet of the second switch valve 12 through the second transition flow channel, or directly connected to the outlet of the second switch valve 12 without passing through the transition flow channel. The first expansion valve inlet interface 819 may be indirectly connected to the outlet of the first expansion valve 21 through the third transition flow channel, or directly connected to the inlet of the first expansion valve 21 without passing through the transition flow channel. The outlet of the first expansion valve 21 may be indirectly connected to the inlet interface 68 of the battery pack heat exchanger through the fourth transition flow channel, or directly connected to the inlet interface 68 of the battery pack heat exchanger without passing through the transition flow channel. The second expansion valve inlet interface 818 can be indirectly connected to the outlet of the second expansion valve 22 through the fifth transition flow channel, or directly connected to the inlet of the second expansion valve 22 without passing through the transition flow channel. The outlet of the second expansion valve 22 can be indirectly connected to the indoor evaporator inlet interface 65 through the sixth transition flow channel, or directly connected to the indoor evaporator inlet interface 65 without passing through the transition flow channel.

[0063] Alternatively, if Figure 5 As shown, the second flow channel 102 may be formed with a first switch valve inlet interface 803, a third switch valve inlet interface 801, a third expansion valve inlet interface 817, and a second flow channel inlet 802. The first switch valve inlet interface 803 may be indirectly connected to the inlet of the first switch valve 11 through the seventh transition flow channel, or directly connected to the inlet of the first switch valve 11 without passing through the transition flow channel. The third switch valve inlet interface 801 may be indirectly connected to the inlet of the third switch valve 13 through the eighth transition flow channel, or directly connected to the inlet of the third switch valve 13 without passing through the transition flow channel. The third expansion valve inlet interface 817 may be indirectly connected to the inlet of the third expansion valve 23 through the ninth transition flow channel, or directly connected to the inlet of the third expansion valve 23 without passing through the transition flow channel. The second flow channel inlet 802 may be indirectly connected to the indoor condenser outlet interface 67 through the tenth transition flow channel.

[0064] Alternatively, if Figure 5As shown, the third flow channel 103 may be formed with a third switch valve outlet interface 806, a third expansion valve outlet interface 805, and a third flow channel outlet 804. The third switch valve outlet interface 806 may be indirectly connected to the outlet of the third switch valve 13 through the eleventh transition flow channel, or directly connected to the outlet of the third switch valve 13 without passing through the transition flow channel. The third expansion valve outlet interface 805 may be indirectly connected to the outlet of the third expansion valve 23 through the twelfth transition flow channel, or directly connected to the outlet of the third expansion valve 23 without passing through the transition flow channel. The outdoor heat exchanger inlet interface 66 may be indirectly connected to the third flow channel outlet 804 through the thirteenth transition flow channel.

[0065] Alternatively, if Figure 5 As shown, the fourth flow channel 104 may be formed with a second switch valve inlet interface 809, a fourth switch valve inlet interface 811, and a fourth flow channel inlet 810. The second switch valve inlet interface 809 may be indirectly connected to the inlet of the second switch valve 12 through the fourteenth transition flow channel, or may be directly connected to the inlet of the second switch valve 12 without passing through the transition flow channel. The fourth switch valve inlet interface 811 may be indirectly connected to the inlet of the fourth switch valve 14 through the fifteenth transition flow channel, or may be directly connected to the inlet of the fourth switch valve 14 without passing through the transition flow channel. The outdoor heat exchanger outlet interface 64 may be connected to the fourth flow channel inlet 810 through the sixteenth transition flow channel.

[0066] Alternatively, if Figure 5 As shown, a fourth switch valve outlet interface 812 may be formed on the fifth flow channel 105, and the fourth switch valve outlet interface 812 may be indirectly connected to the outlet of the fourth switch valve 14 through the seventeenth transition flow channel, or directly connected to the outlet of the fourth switch valve 14 without passing through the transition flow channel.

[0067] As mentioned above, the first flow channel 101, the second flow channel 102, the third flow channel 103, the fourth flow channel 104 and the fifth flow channel 105 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 flow channel 101, the second flow channel 102, the third flow channel 103, the fourth flow channel 104 and the fifth flow channel 105. For example, as an embodiment, the base 60 can be integrally formed by a molding mold, such as by pouring, so as to form the first flow channel 101, the second flow channel 102, the third flow channel 103, the fourth flow channel 104 and the fifth flow channel 105 during the molding process.

[0068] As another embodiment, the substrate 60 may be a split structure, such as Figure 2 and Figure 4As shown, the base body 60 includes a first sub-body 40 and a second sub-body 50, the first sub-body 40 includes a first connecting surface 401, the second sub-body 50 includes a second connecting surface 501, the first connecting surface 401 is sealed and connected to the second connecting surface 501, the first connecting surface 401 is recessed inward and forms a first groove 701, a second groove 702, a third groove 703, a fourth groove 704 and a fifth groove 705. The second connecting surface 501 and the first groove 701 jointly define a first flow channel 101, the second connecting surface 501 and the second groove 702 jointly define a second flow channel 102, the second connecting surface 501 and the third groove 703 jointly define a third flow channel 103, the second connecting surface 501 and the fourth groove 704 jointly define a fourth flow channel 104, and the second connecting surface 501 and the fifth groove 705 jointly define a fifth flow channel 105. The first switch valve 11, the second switch valve 12, the third switch valve 13, the fourth switch valve 14, the first expansion valve 21, the second expansion valve 22, and the third expansion valve 23 are all arranged on the first split body 40, or the first switch valve 11, the second switch valve 12, the third switch valve 13, the fourth switch valve 14, the first expansion valve 21, the second expansion valve 22, and the third expansion valve 23 are all arranged on the second split body 50. In other words, the first switch valve 11, the second switch valve 12, the third switch valve 13, the first expansion valve 21, the second expansion valve 22, and the third expansion valve 23 can be located on the same split body as the first groove 701, the second groove 702, the third groove 703, the fourth groove 704, and the fourth groove 704, or can be located on different split bodies, and the present disclosure does not limit this.

[0069] The base 60 is configured to include a first sub-body 40 and a second sub-body 50 that cooperate with each other, and a first groove 701, a second groove 702, a third groove 703, a fourth groove 704 and a fifth groove 705 are opened on the surface of the first sub-body 40, and the first flow channel 101, the second flow channel 102, the third flow channel 103, the fourth flow channel 104 and the fifth flow channel 105 are formed by the cooperation between the first sub-body 40 and the second sub-body 50. The advantage is that: since the manufacturing process of opening the first groove 701, the second groove 702, the third groove 703, the fourth groove 704 and the fifth groove 705 on the surface of the first sub-body 4040 is simpler, it can facilitate the formation and manufacture of the flow channel, especially the manufacture of curved flow channels.

[0070] Optionally, at least one of the first groove 701 , the second groove 702 , and the third groove 703 is a curved groove, and at least one of the fourth groove 704 and the fifth groove 705 is a curved groove.

[0071] For the embodiment in which a curved groove is formed in the first groove 701, the second groove 702, the third groove 703, the fourth groove 704, and the fifth groove 705, the angle of the inflection point of the curved groove can be greater than or equal to 90° to reduce the flow resistance of the refrigerant flowing in the curved flow channel.

[0072] In addition, since the interfaces such as the indoor condenser outlet interface 67, the outdoor heat exchanger inlet interface 66, the outdoor heat exchanger outlet interface 64, the indoor evaporator inlet interface 65, the reflux inlet interface 62, and the battery pack heat exchanger outlet interface 61 are arranged on the outer surface of the base 60, the first groove 701, the second groove 702, the third groove 703, the fourth groove 704, and the fifth groove 705 are provided on the first split body 40 to facilitate the connection between the interfaces located on the surface and the corresponding sub-channels. Specifically, for example, for the fourth channel 104 and the outdoor heat exchanger outlet interface 64 connected to the fourth channel 104, after the fourth groove 704 is provided on the first split body 40, a straight-line cavity can be formed from the groove wall of the third groove 703 to the outer surface of the first split body 40, thereby forming the fourth channel inlet 810, the outdoor heat exchanger outlet interface 64, and the transition channel connected between the fourth channel inlet 810 and the outdoor heat exchanger outlet interface 64. The communication mode between other interfaces and their corresponding sub-channels is similar to the communication mode between the outdoor heat exchanger outlet interface 64 and the fourth channel 104, and will not be described in detail here.

[0073] In addition, the first switch valve 11 and the second switch valve 12 can be installed at any appropriate position on the base 60. As an embodiment, refer to Figures 1 to 5 As shown, the axis of the valve core of the first switch valve 11 can be perpendicular to the plane where the first flow channel 101 is located and the plane where the second flow channel 102 is located, the axis of the valve core of the second switch valve 12 is perpendicular to the plane where the first flow channel 101 is located and the plane where the fourth flow channel 104 is located, the axis of the valve core of the third switch valve 13 is perpendicular to the plane where the first flow channel 101 is located and the plane where the third flow channel 103 is located, and the axis of the valve core of the fourth switch valve 14 is perpendicular to the plane where the fourth flow channel 104 is located and the plane where the fifth flow channel 105 is located, so as to prevent impurities from being deposited in the first switch valve 11, the second switch valve 12, the third switch valve 13 and the fourth switch valve 14. Here, the plane where the flow channel is located refers to, Figure 5 The plane defined by the length direction and the width direction of the base 60 shown in FIG.

[0074] In a specific embodiment provided by the present disclosure, Figures 2 to 4As shown, the first split body 40 can be formed into a cubic shape and has two large faces defined by the length and width of the first split body 40, and four narrow faces defined by the length and thickness of the first split body 40 and the width and thickness of the first split body 40. The first groove 701, the second groove 702, the third groove 703, the fourth groove 704 and the fifth groove 705 can be formed on one large face, and the first switch valve 11, the second switch valve 12, the third switch valve 13 and the fourth switch valve 14 can be installed on another large face, so that the first split body 40 has two large faces and four narrow faces defined by the length and thickness of the first split body 40 and the width and thickness of the first split body 40. The axis of the valve core of the first switch valve 11 can be perpendicular to the plane where the first flow channel 101 and the plane where the second flow channel 102 are located, the axis of the valve core of the second switch valve 12 can be perpendicular to the plane where the first flow channel 101 and the plane where the fourth flow channel 104 are located, the axis of the valve core of the third switch valve 13 can be perpendicular to the plane where the first flow channel 101 and the plane where the third flow channel 103 are located, and the axis of the valve core of the fourth switch valve 14 can be perpendicular to the plane where the fourth flow channel 104 and the plane where the fifth flow channel 105 are located. The first expansion valve 21, the second expansion valve 22 and the third expansion valve 23 can be installed on the narrow surface, so that the first expansion valve 21, the second expansion valve 22 and the third expansion valve 23 are connected to the corresponding flow channels and interfaces. Optionally, the first expansion valve 21, the second expansion valve 22 and the third expansion valve 23 can be installed on different narrow surfaces.

[0075] The first switch valve 11, the second switch valve 12, the third switch valve 13, the fourth switch valve 14, the first expansion valve 21, the second expansion valve 22, the third expansion valve 23, and the temperature sensor 30 can be installed on the base 60 in any appropriate installation manner. For example, Figures 2 to 4 As shown, in one embodiment provided by the present disclosure, a first expansion valve mounting hole 211, a second expansion valve mounting hole 221, a third expansion valve mounting hole 231, a first switch valve mounting hole 111, a second switch valve mounting hole 121, a third switch valve mounting hole 131, a fourth switch valve mounting hole 141, and a temperature sensor mounting hole may be formed on the base 60, wherein the first expansion valve mounting hole 211, the second expansion valve mounting hole 221, the third expansion valve mounting hole 231, the first switch valve mounting hole 111, the second switch valve mounting hole 121, the third switch valve mounting hole 131, the fourth switch valve mounting hole 141, and a temperature sensor mounting hole Internal threads can be formed on the hole walls of the four switch valve mounting holes 141 and the temperature sensor mounting hole, so that the first switch valve 11, the second switch valve 12, the third switch valve 13, the fourth switch valve 14, the first expansion valve 21, the second expansion valve 22, the third expansion valve 23, and the temperature sensor 30 are respectively threadedly connected to the first switch valve mounting hole 111, the second switch valve mounting hole 121, the third switch valve mounting hole 131, the fourth switch valve mounting hole 141, the first expansion valve mounting hole 211, the second expansion valve mounting hole 221, the third expansion valve mounting hole 231, and the temperature sensor mounting hole.

[0076] In addition, in order to further improve the fixity of the first expansion valve 21, the second expansion valve 22 and the third expansion valve 23, as shown in FIG. Figure 2 and Figure 3 As shown, a first expansion valve fastening hole 212, a second expansion valve fastening hole 222 and a third expansion valve fastening hole 232 may be formed on the base 60, a first bolt may pass through the mounting plate on the first expansion valve 21 and be threadedly connected to the first expansion valve fastening hole 212, a second bolt may pass through the mounting plate on the second expansion valve 22 and be threadedly connected to the second expansion valve fastening hole 222, and a third bolt may pass through the mounting plate on the third expansion valve 23 and be threadedly connected to the third expansion valve fastening hole 232.

[0077] Optionally, in order to facilitate the positioning and assembly of the first switch valve 11, the second switch valve 12, the third switch valve 13, and the fourth switch valve 14, as shown in FIG. Figure 3 As shown, a first switch valve positioning hole 112, a second switch valve positioning hole 122, a third switch valve positioning hole 132, and a fourth switch valve positioning hole 142 can also be formed on the base 60. The first switch valve positioning hole 112 is used to cooperate with the positioning plate on the first switch valve 11, the second switch valve positioning hole 122 is used to cooperate with the positioning plate on the second switch valve 12, the third switch valve positioning hole 132 is used to cooperate with the positioning plate on the third switch valve 13, and the fourth switch valve positioning hole 142 is used to cooperate with the positioning plate on the fourth switch valve 14.

[0078] For ease of understanding, the following will be based on Figure 6 and Figure 7 The vehicle thermal management system shown in the figure is combined with the Figures 1 to 5 The valve group integrated module shown details the flow path of the refrigerant in the vehicle thermal management system in the main operating mode.

[0079] Mode 1: Passenger compartment cooling mode. Figure 6 and Figure 7 As shown, in this mode, the main flow path of the refrigerant is: compressor 91→indoor condenser 92→third switch valve 13→outdoor heat exchanger 93→second switch valve 12→second expansion valve 22→indoor evaporator 94→gas-liquid separator 95→compressor 91. In this mode, the indoor evaporator 94 contains low-temperature and low-pressure refrigerant, which absorbs heat from the passenger compartment in the indoor evaporator 94 to achieve cooling of the passenger compartment.

[0080] It should be noted that, in this mode, although the refrigerant flowing out of the outlet of the compressor 91 flows through the indoor condenser 92, it is not necessary to use a fan or a blower to blow air to the indoor condenser 92, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 92 does not release heat and condense in the indoor condenser 92. That is to say, in this mode, the indoor condenser 92 is used as a flow channel.

[0081] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant is: compressor 91→indoor condenser 92→indoor condenser outlet interface 67→second flow channel inlet 802→second flow channel 102→third switch valve inlet interface 801→third switch valve 13→third switch valve outlet interface 806→third flow channel 103→third flow channel outlet 804→outdoor heat exchanger inlet interface 66→outdoor heat exchanger 93→outdoor heat exchanger outlet interface 64→fourth flow channel inlet 810→fourth flow channel 104→second switch valve inlet interface 809→second switch valve 12→second switch valve outlet interface 807→first flow channel 101→second expansion valve inlet interface 818→second expansion valve 22→indoor evaporator inlet interface 65→indoor evaporator 94→indoor evaporator outlet interface 63→first through hole 813→fifth flow channel 105→third through hole 815→reflux inlet interface 62→gas-liquid separator 95→compressor 91.

[0082] Mode 2: Battery pack 97 cooling mode. Figure 6 and Figure 7 As shown, in this mode, the main flow path of the refrigerant is: compressor 91 → indoor condenser 92 → third switch valve 13 → outdoor heat exchanger 93 → second switch valve 12 → first expansion valve 21 → battery pack heat exchanger 96 → gas-liquid separator 95 → compressor 91. The main flow path of the coolant is: battery pack 97 → battery pack heat exchanger 96 → battery pack 97. In this mode, in the battery pack heat exchanger 96, the low-temperature and low-pressure refrigerant absorbs the heat of the high-temperature coolant, so that the coolant outlet of the battery pack heat exchanger 96 flows out the low-temperature coolant, and the low-temperature coolant can absorb the heat of the battery pack 97 when flowing through the battery pack 97, thereby cooling the battery pack 97.

[0083] It should be noted that, in this mode, although the refrigerant flowing out of the outlet of the compressor 91 flows through the indoor condenser 92, it is not necessary to use a fan or a blower to blow air to the indoor condenser 92, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 92 does not release heat and condense in the indoor condenser 92. That is to say, in this mode, the indoor condenser 92 is used as a flow channel.

[0084] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant is: compressor 91→indoor condenser 92→indoor condenser outlet interface 67→second flow channel inlet 802→second flow channel 102→third switch valve inlet interface 801→third switch valve 13→third switch valve outlet interface 806→third flow channel 103→third flow channel outlet 804→outdoor heat exchanger inlet interface 66→outdoor heat exchanger 93→outdoor heat exchanger outlet interface 64→fourth flow channel inlet 810→fourth flow channel 104→second switch valve inlet interface 809→second switch valve 12→second switch valve outlet interface 807→first flow channel 101→first expansion valve inlet interface 819→first expansion valve 21→battery pack heat exchanger inlet interface 68→battery pack heat exchanger 96→battery pack heat exchanger outlet interface 61→fourth through hole 816→fifth flow channel 105→third through hole 815→reflux inlet interface 62→gas-liquid separator 95→compressor 91.

[0085] Mode 3: Passenger compartment cooling and battery pack 97 cooling mode. It can be understood that this mode is the same opening mode of the above-mentioned mode 1 and mode 2. In this mode, the main flow path of the refrigerant is: compressor 91 → indoor condenser 92 → third switch valve 13 → outdoor heat exchanger 93 → second switch valve 12. Here, the refrigerant flowing out of the outlet of the second switch valve 12 will be divided into two streams, one of which flows as follows: second expansion valve 22 → indoor evaporator 94 → gas-liquid separator 95 → compressor 91, and the other flows as follows: first expansion valve 21 → battery pack heat exchanger 96 → gas-liquid separator 95 → compressor 91. The main flow path of the coolant is: battery pack 97 → battery pack heat exchanger 96 → battery pack 97. It should be noted that, in this mode, although the refrigerant flowing out of the outlet of the compressor 91 flows through the indoor condenser 92, it is not necessary to use a fan or a blower to blow air to the indoor condenser 92, so that the high-temperature and high-pressure refrigerant flowing into the indoor condenser 92 does not release heat and condense in the indoor condenser 92. That is to say, in this mode, the indoor condenser 92 is used as a flow channel.

[0086] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant is: compressor 91→indoor condenser 92→indoor condenser outlet interface 67→second flow channel inlet 802→second flow channel 102→third switch valve inlet interface 801→third switch valve 13→third switch valve outlet interface 806→third flow channel 103→third flow channel outlet 804→outdoor heat exchanger inlet interface 66→outdoor heat exchanger 93→outdoor heat exchanger outlet interface 64→fourth flow channel inlet 810→fourth flow channel 104→second switch valve inlet interface 809→second switch valve 12→second switch valve outlet interface 807→first flow channel 101. The refrigerant in the first flow channel 101 is divided into two streams, one of which has a specific flow path of: the second expansion valve inlet interface 818 → the second expansion valve 22 → the indoor evaporator inlet interface 65 → the indoor evaporator 94 → the indoor evaporator outlet interface 63 → the first through hole 813 → the fifth flow channel 105; the other has a specific flow path of: the first expansion valve inlet interface 819 → the first expansion valve 21 → the battery pack heat exchanger inlet interface 68 → the battery pack heat exchanger 96 → the battery pack heat exchanger outlet interface 61 → the fourth through hole 816 → the fifth flow channel 105. In other words, the refrigerant flowing out of the outlet of the indoor evaporator 94 and the refrigerant flowing out of the refrigerant outlet of the battery pack heat exchanger 96 flow into the fifth flow channel 105 through the indoor evaporator outlet interface 63 and the battery pack heat exchanger outlet interface 61 respectively and converge in the fifth flow channel 105. The specific flow path of the converged refrigerant is: the third through hole 815 → the reflux inlet interface 62 → the gas-liquid separator 95 → the compressor 91.

[0087] Mode 4: Passenger compartment heating mode. Figure 6 and Figure 7 As shown, in this mode, the main flow path of the refrigerant is: compressor 91→indoor condenser 92→third expansion valve 23→outdoor heat exchanger 93→fourth switch valve 14→gas-liquid separator 95→compressor 91. In this mode, the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 91 flows into the indoor condenser 92, and releases heat in the indoor condenser 92, thereby raising the temperature of the passenger compartment and achieving heating of the passenger compartment. For the embodiment provided with the PTC air heater 98, the PTC air heater 98 can also be turned on in the passenger compartment heating mode, so as to heat the passenger compartment together with the indoor condenser 92.

[0088] In addition, in this mode, if the battery pack 97 has a heating demand, the PTC water heater 99 in the coolant circuit formed by the battery pack 97 and the battery pack heat exchanger 96 connected in series can be turned on, and the coolant is heated by the PTC water heater 99, thereby heating the battery pack 97, and then realizing the passenger compartment heating and battery pack 97 heating mode. In the passenger compartment heating mode, since the refrigerant does not flow into the battery pack heat exchanger 96, only the coolant flows into the battery pack heat exchanger 96, and the coolant does not exchange heat in the battery pack heat exchanger 96. At this time, the battery pack heat exchanger 96 can be regarded as a through-flow channel.

[0089] 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 91→indoor condenser 92→indoor condenser 92→indoor condenser outlet interface 67→second flow channel inlet 802→second flow channel 102→third expansion valve inlet interface 817→third expansion valve 23→third expansion valve outlet interface 805→third flow channel 103→third flow channel outlet 804→outdoor heat exchanger inlet interface 66→outdoor heat exchanger 93→outdoor heat exchanger outlet interface 64→fourth flow channel inlet 810→fourth flow channel 104→fourth switch valve inlet interface 811→fourth switch valve 14→fourth switch valve outlet interface 812→fifth flow channel 105→third through hole 815→reflux inlet interface 62→gas-liquid separator 95→compressor 91.

[0090] Mode 5: passenger compartment heating mode using the heat of the battery pack 97. Figure 6 and Figure 7 As shown, in this mode, the main flow path of the refrigerant is: compressor 91→indoor condenser 92→first switch valve 11→first expansion valve 21→battery pack heat exchanger 96→gas-liquid separator 95→compressor 91. In this mode, the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 91 flows into the indoor condenser 92, and releases heat in the indoor condenser 92, thereby raising the temperature of the passenger compartment and achieving heating of the passenger compartment. In the battery pack heat exchanger 96, the low-temperature and low-pressure refrigerant absorbs the heat of the high-temperature coolant, thereby transferring the heat of the battery pack 97 to the refrigerant for heating the passenger compartment.

[0091] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant is: compressor 91→indoor condenser 92→indoor condenser 92 inlet interface→second flow channel inlet 802→second flow channel 102→first switch valve inlet interface 803→first switch valve 11→first switch valve outlet interface 808→first flow channel 101→first expansion valve inlet interface 819→first expansion valve 21→battery pack heat exchanger inlet interface 68→battery pack heat exchanger 96→battery pack heat exchanger outlet interface 61→fourth through hole 816→fifth flow channel 105→third through hole 815→reflux inlet interface 62→gas-liquid separator 95→compressor 91.

[0092] Mode 6: Dehumidification mode for passenger compartment. Figure 6 and Figure 7 As shown, in this mode, the main flow path of the refrigerant is: compressor 91→indoor condenser 92→third switch valve 13→outdoor heat exchanger 93→second switch valve 12→second expansion valve 22→indoor evaporator 94→gas-liquid separator 95→compressor 91. In this mode, the high-temperature and high-pressure refrigerant flowing out of the outlet of the compressor 91 releases heat in the indoor condenser 92, and the indoor evaporator 94 contains low-temperature and low-pressure refrigerant. In this way, when the hot and humid air in the passenger compartment encounters the cold indoor evaporator 94, the water vapor in the humid air can condense into condensed water on the surface of the indoor evaporator 94, thereby achieving the purpose of dehumidifying the passenger compartment.

[0093] In combination with the valve group integrated module provided in the present invention, the specific flow path of the refrigerant is: compressor 91→indoor condenser 92→indoor condenser outlet interface 67→second flow channel inlet 802→second flow channel 102→third switch valve inlet interface 801→third switch valve 13→third switch valve outlet interface 806→third flow channel 103→third flow channel outlet 804→outdoor heat exchanger inlet interface 66→outdoor heat exchanger 93→outdoor heat exchanger outlet interface 64→fourth flow channel inlet 810→fourth flow channel 104→second switch valve inlet interface 809→second switch valve 12→second switch valve outlet interface 807→first flow channel 101→second expansion valve inlet interface 818→second expansion valve 22→indoor evaporator inlet interface 65→indoor evaporator 94→indoor evaporator outlet interface 63→first through hole 813→fifth flow channel 105→third through hole 815→reflux inlet interface 62→gas-liquid separator 95→compressor 91.

[0094] According to another aspect of the present disclosure, a vehicle thermal management system is also provided, comprising the above-mentioned valve group integrated module.

[0095] According to yet another aspect of the present disclosure, a vehicle is provided, comprising the above-mentioned vehicle thermal management system.

[0096] 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 in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0097] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0098] In addition, 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) and a valve group arranged on the base (60), wherein the valve group comprises a first switch valve (11), a second switch valve (12) and a first expansion valve (21); The base (60) is formed with an indoor condenser outlet interface (67) for connecting to the outlet of an indoor condenser (92) outside the base (60), an outdoor heat exchanger outlet interface (64) for connecting to the outlet of an outdoor heat exchanger (93) outside the base (60), and a battery pack heat exchanger inlet interface (68) for connecting to the refrigerant inlet of a battery pack heat exchanger (96) outside the base (60); A first flow channel (101) is formed in the base body (60), the inlet of the first switch valve (11) is connected to the indoor condenser outlet interface (67), the outlet of the first switch valve (11) is connected to the first flow channel (101), the inlet of the first expansion valve (21) is connected to the first flow channel (101), the outlet of the first expansion valve (21) is connected to the battery pack heat exchanger inlet interface (68), the outdoor heat exchanger outlet interface (64) is connected to the inlet of the second switch valve (12), and the outlet of the second switch valve (12) is connected to the first flow channel (101).

2. The valve group integrated module according to claim 1, characterized in that: The valve group also includes a second expansion valve (22), and an indoor evaporator inlet interface (65) for connecting to the inlet of an indoor evaporator (94) outside the base (60) is formed on the base (60); the inlet of the second expansion valve (202) is connected to the first flow channel (101), and the outlet of the second expansion valve (202) is connected to the indoor evaporator inlet interface (65).

3. The valve group integrated module according to claim 1 or 2, characterized in that: The valve group also includes a third switch valve (13), and an outdoor heat exchanger inlet interface (66) connected to the inlet of the outdoor heat exchanger (93) is formed on the base (60). A second flow channel (102) is also formed in the base (60), and the indoor condenser outlet interface (67) is connected to the second flow channel (102), the inlet of the first switch valve (11) is connected to the second flow channel (102), the inlet of the third switch valve (13) is connected to the second flow channel (102), and the outlet of the third switch valve (13) is connected to the outdoor heat exchanger inlet interface (66).

4. The valve group integrated module according to claim 3, characterized in that: By turning on or off the first switch valve (11) and the third switch valve (13), the refrigerant flowing into the second flow channel (102) from the indoor condenser outlet interface (67) can flow into the first flow channel (101) via the first switch valve (11), or flow out from the outdoor heat exchanger inlet interface (66) via the third switch valve (13).

5. The valve group integrated module according to claim 3, characterized in that: The valve group also includes a third expansion valve (23), and a third flow channel (103) is also formed in the base (60); the outdoor heat exchanger inlet interface (66) is connected to the third flow channel (103), the outlet of the third switch valve (13) is connected to the third flow channel (103), the inlet of the third expansion valve (23) is connected to the second flow channel (102), and the outlet of the third expansion valve (23) is connected to the third flow channel (103).

6. The valve group integrated module according to claim 5, characterized in that: By turning on or off the third switch valve (13) and throttling or cutting off the third expansion valve (23), the refrigerant flowing into the second flow channel (102) from the indoor condenser outlet interface (67) can flow into the third flow channel (103) via the third switch valve (13), or flow into the third flow channel (103) via the third expansion valve (23).

7. The valve group integrated module according to claim 5, characterized in that: The base (60) comprises a first split body (40) and a second split body (50); the first split body (40) comprises a first connecting surface (401); the second split body (50) comprises a second connecting surface (501); the first connecting surface (401) and the second connecting surface (501) are sealedly connected; the first connecting surface (401) is recessed inwards and forms a first groove (701), a second groove (702) and a third groove (703); the second connecting surface (501) and the first groove (701) jointly define the first flow channel (101); the second connecting surface (501) and the second groove (702) jointly define the second flow channel (102); and the second connecting surface (501) and the third groove (703) jointly define the third flow channel (103); The first switch valve (11), the second switch valve (12), the third switch valve (13), the first expansion valve (21), and the third expansion valve (23) are all arranged on the first split body (40), or the first switch valve (11), the second switch valve (12), the third switch valve (13), the first expansion valve (21), and the third expansion valve (23) are all arranged on the second split body (50).

8. The valve group integrated module according to claim 7, characterized in that: At least one of the first groove (701), the second groove (702) and the third groove (703) is a curved groove.

9. The valve group integrated module according to claim 1, characterized in that: The valve group also includes a fourth switch valve (14); a reflux inlet interface (62) for connecting to an inlet of a compressor (91) outside the base (60) or an inlet of a gas-liquid separator (95) connected to the compressor (91) is formed on the base (60); a fourth flow channel (104) is also formed in the base (60); the outdoor heat exchanger outlet interface (64) is connected to the fourth flow channel (104); the inlet of the second switch valve (12) is connected to the fourth flow channel (104); the inlet of the fourth switch valve (14) is connected to the fourth flow channel (104); and the outlet of the fourth switch valve (14) is connected to the reflux inlet interface (62).

10. The valve group integrated module according to claim 9, characterized in that: A fifth flow channel (105) is also formed in the base (60), the outlet of the fourth switch valve (14) is connected to the fifth flow channel (105), the reflux inlet interface (62) is connected to the fifth flow channel (105), and a battery pack heat exchanger outlet interface (61) for connecting to the refrigerant outlet of the battery pack heat exchanger (96) is also formed on the base (60), and the battery pack heat exchanger outlet interface (61) is connected to the fifth flow channel (105).

11. The valve group integrated module according to claim 9, characterized in that: A fifth flow channel (105) is also formed in the base (60), the outlet of the fourth switch valve (14) is connected to the fifth flow channel (105), the reflux inlet interface (62) is connected to the fifth flow channel (105), and an indoor evaporator outlet interface (63) for connecting to the outlet of the indoor evaporator (94) is also formed on the base (60), and the indoor evaporator outlet interface (63) is connected to the fifth flow channel (105).

12. The valve group integrated module according to claim 11, characterized in that: The valve group integrated module also includes a temperature sensor (30); a first through hole (813), a second through hole (814) and a third through hole (815) are formed on the fifth flow channel (105); the second through hole (814) is located between the first through hole (813) and the third through hole (815); the first through hole (813) is connected to the indoor evaporator outlet interface (63); the third through hole (815) is connected to the reflux inlet interface (62); 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 (814) and is located in the fifth flow channel (105).

13. The valve group integrated module according to claim 11, characterized in that: The base (60) comprises a first split body (40) and a second split body (50); the first split body (40) comprises a first connecting surface (401); the second split body (50) comprises a second connecting surface (501); the first connecting surface (401) and the second connecting surface (501) are sealedly connected; the first connecting surface (401) is recessed inwards and forms a fourth groove (704) and a fifth groove (705); the second connecting surface (501) and the fourth groove (704) jointly define the fourth flow channel (104); and the second connecting surface (501) and the fifth groove (705) jointly define the fifth flow channel (105); Wherein, the fourth switch valve (14) is arranged on the first sub-body (40) or the second sub-body (50).

14. The valve group integrated module according to claim 13, characterized in that: At least one of the fourth groove (704) and the fifth groove (705) is a curved groove.

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

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

Images