Valve assembly, thermal management system and vehicle

Abstract

The utility model provides a valve assembly, a thermal management system and a vehicle. The valve assembly is of an integrated structure and is applied to a thermal management system. The valve assembly comprises a shell, a switching module and an inner communicating pipeline. The shell comprises a plurality of external interfaces, the switching module comprises a plurality of internal switching ports, and the internal communicating pipeline is connected with the internal communicating ports and the external interfaces; wherein the switching module is used for switching on and off of at least one internal switching port according to different working modes of the thermal management system. According to the valve assembly, the thermal management system and the vehicle, the valve assembly is of the integrated structure, the internal communicating pipeline is connected with the internal communicating port and the external connector, the switching module is used for switching on and off of at least one internal switching port according to different working modes of the thermal management system, and the valve assembly applied to the thermal management system is of the integrated structure; the occupied space is small and the integration degree is high; the switching of different working modes of the thermal management system can be realized by switching the internal switching ports, so that the cost and the control difficulty are reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a valve assembly, a thermal management system and a vehicle. Background Art

[0002] The water, oil, and refrigerant piping systems in vehicles are one of the important systems to ensure the normal operation of the vehicle. With the development of new energy vehicle technology, these piping systems have become more complex, and the number of components involved has also increased. In related technologies, these piping systems in vehicles are usually controlled by multiple solenoid valves. The number of solenoid valves required is large and too dispersed, occupying more installation space, increasing process and manufacturing costs; in addition, the related technologies require the coordinated control of a large number of solenoid valves, which increases costs and control difficulties. Utility Model Content

[0003] The present application provides a valve assembly, a thermal management system and a vehicle that occupy a small space, have a low manufacturing cost, a high degree of integration and are easy to control.

[0004] The present application provides a valve assembly, which is an integrated structure and is applied to a thermal management system; the valve assembly includes a shell, a switching module and an internal connecting pipeline; the shell includes a plurality of external interfaces, the switching module includes a plurality of internal switching ports, and the internal connecting pipeline connects the internal connecting ports and the external interfaces; wherein the switching module is used to switch the on and off of at least one of the internal switching ports according to different working modes of the thermal management system.

[0005] Optionally, the thermal management system includes an air conditioning heating mode; the valve assembly includes a first electronic expansion valve; the multiple external interfaces include a first interface, a second interface, a third interface and a fourth interface, and the multiple internal switching ports include a second port, a first port, a third port and a fourth port,

[0006] The first interface, the first electronic expansion valve, the first port, the second port and the second interface are connected through the internal connecting pipe to form a first branch; the third interface, the third port, the fourth port and the fourth interface are connected through the internal connecting pipe to form a second branch; when the thermal management system is in the air conditioning heating mode, the first branch and the second branch are connected.

[0007] Optionally, the thermal management system includes a battery heating mode; the valve assembly also includes a second electronic expansion valve and a first one-way valve, the multiple external interfaces include a second interface, a third interface, a fourth interface, a fifth interface, a sixth interface and a seventh interface, and the multiple internal switching ports include a first port, a second port, a third port, a fourth port, a fifth port and a sixth port,

[0008] The fifth interface, the fifth port, the sixth port and the sixth interface are connected through the internal connecting pipeline to form a third branch; the seventh interface, the second electronic expansion valve, the first one-way valve, the first port, the second port and the second interface are connected through the internal connecting pipeline to form a fourth branch; the third interface, the third port, the fourth port and the fourth interface are connected through the internal connecting pipeline to form a second branch; when the thermal management system is in the battery heating mode, the third branch, the fourth branch and the second branch are connected.

[0009] Optionally, the thermal management system includes air conditioning heating and battery heating modes; the valve assembly also includes a second electronic expansion valve and a first one-way valve, the multiple external interfaces include a sixth interface, a fifth interface and a seventh interface, and the multiple internal switching ports include a fifth port and a sixth port,

[0010] The fifth interface, the fifth port, the sixth port and the sixth interface are connected through the internal connecting pipe to form a third branch, and the seventh interface, the second electronic expansion valve, the first one-way valve, the first port, the second port and the second interface are connected through the internal connecting pipe to form a fourth branch; when the thermal management system is in the air conditioning heating and battery heating mode, the first branch, the second branch, the third branch and the fourth branch are connected.

[0011] Optionally, the thermal management system includes a battery cooling mode; the valve assembly also includes a second electronic expansion valve, a second one-way valve, a third one-way valve and a fourth one-way valve, the multiple external interfaces include a first interface, a fourth interface, a sixth interface, a seventh interface, an eighth interface and a ninth interface, the multiple internal switching ports include a first transfer port, a second transfer port, a seventh port, an eighth port, a ninth port and a tenth port,

[0012] The first interface, the seventh port, the first transfer port, the second transfer port, the eighth port and the eighth interface are connected through the internal connecting pipeline to form a fifth branch; the ninth interface, the second one-way valve, the third one-way valve, the second electronic expansion valve and the seventh interface are connected through the internal connecting pipeline to form a sixth branch; the sixth interface, the ninth port, the tenth port, the fourth one-way valve and the fourth interface are connected through the internal connecting pipeline to form a seventh branch; when the thermal management system is in the battery cooling mode, the fifth branch, the sixth branch and the seventh branch are connected.

[0013] Optionally, the thermal management system includes an air conditioning refrigeration mode; the valve assembly also includes a third electronic expansion valve, a second one-way valve and a fifth one-way valve, the multiple external interfaces include a first interface, a fourth interface, an eighth interface, a ninth interface, a tenth interface and an eleventh interface, and the multiple internal switching ports include a first transfer port, a second transfer port, a seventh port and an eighth port,

[0014] The first interface, the seventh port, the first transfer port, the second transfer port, the eighth port and the eighth interface are connected through the internal connecting pipe to form a fifth branch; the ninth interface, the second one-way valve, the third electronic expansion valve and the tenth interface are connected to form an eighth branch; the eleventh interface, the fifth one-way valve and the fourth interface are connected through the internal connecting pipe to form a ninth branch; when the thermal management system is in the air-conditioning cooling mode, the fifth branch, the eighth branch and the ninth branch are connected.

[0015] Optionally, the thermal management system includes a battery cooling mode and an air conditioning refrigeration mode; the valve assembly further includes a third electronic expansion valve and a fifth one-way valve; the multiple external interfaces include a tenth interface and an eleventh interface,

[0016] The ninth interface, the second one-way valve, the third electronic expansion valve and the tenth interface are connected to form an eighth branch; the eleventh interface, the fifth one-way valve and the fourth interface are connected through the internal connecting pipe to form a ninth branch; when the thermal management system is in the battery cooling and air conditioning cooling mode, the fifth branch, the sixth branch, the seventh branch, the eighth branch and the ninth branch are connected.

[0017] Optionally, the thermal management system includes a battery cooling mode and an air conditioning heating mode; the valve assembly also includes a first electronic expansion valve, a second electronic expansion valve, a third one-way valve and a fourth one-way valve; the multiple external interfaces include a first interface, a second interface, a third interface, a fourth interface, a sixth interface and a seventh interface; the multiple internal switching ports include a second port, a first port, a ninth port and a tenth port;

[0018] The first interface, the first electronic expansion valve, the first port, the second port and the second interface are connected through the internal connecting pipeline to form a first branch; the third interface, the third one-way valve, the second electronic expansion valve and the seventh interface are connected through the internal connecting pipeline to form a tenth branch; the sixth interface, the ninth port, the tenth port, the fourth one-way valve and the fourth interface are connected through the internal connecting pipeline to form a seventh branch; when the thermal management system is in the battery cooling and air conditioning heating mode, the first branch, the tenth branch and the seventh branch are connected.

[0019] The present application also provides a thermal management system, comprising: a valve assembly as described in any one of the above, wherein a switching module of the valve assembly is used to switch the on and off of an internal switching port of at least one of the valve assemblies according to different working modes of the thermal management system.

[0020] The present application also provides a vehicle, comprising: the thermal management system described above.

[0021] The valve assembly, thermal management system and vehicle provided in the present application are characterized in that the valve assembly is an integrated structure, an internal connecting pipe connects the internal connecting port and the external interface, and a switching module is used to switch the on and off of at least one internal switching port according to different operating modes of the thermal management system. The valve assembly applied to the thermal management system is an integrated structure, occupies a small space and has a high degree of integration; the switching of different operating modes of the thermal management system can be achieved by switching the internal switching port, thereby reducing costs and control difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 FIG. 1 is a schematic diagram of an embodiment of a thermal management system of the present application.

[0024] Figure 2 Shown is a schematic diagram of an embodiment of the thermal management system of the present application in air conditioning heating mode.

[0025] Figure 3 FIG. 1 is a schematic diagram showing an embodiment of a thermal management system of the present application in a battery heating mode.

[0026] Figure 4 Shown is a schematic diagram of an embodiment of the thermal management system of the present application in air conditioning heating and battery heating modes.

[0027] Figure 5 Shown is a schematic diagram of an embodiment of a thermal management system of the present application in a battery cooling mode.

[0028] Figure 6 Shown is a schematic diagram of an embodiment of the thermal management system of the present application in air conditioning cooling mode.

[0029] Figure 7 Shown is a schematic diagram of an embodiment of the thermal management system of the present application in battery cooling and air conditioning refrigeration mode.

[0030] Figure 8 Shown is a schematic diagram of an embodiment of the thermal management system of the present application in a battery cooling and air conditioning heating mode.

[0031] Description of reference numerals:

[0032] Thermal management system 100; first branch 101; second branch 102; third branch 103; fourth branch 104; fifth branch 105; sixth branch 106; seventh branch 107; eighth branch 108; ninth branch 109; tenth branch 110; first main path 111; second main path 112; third main path 113; fourth main path 114; fifth main path 115; sixth main path 116; first motor circuit 121; second motor circuit 122; valve group Component 1; first electronic expansion valve 11; second electronic expansion valve 12; third electronic expansion valve 13; first check valve 14; second check valve 15; third check valve 16; fourth check valve 17; fifth check valve 18; housing 2; external interface 21; first interface 201; second interface 202; third interface 203; fourth interface 204; fifth interface 205; sixth interface 206; seventh interface 207; eighth interface 208; ninth interface 209; tenth interface port 210; eleventh port 211; switching module 3; internal switching port 31; first port 301; second port 302; third port 303; fourth port 304; fifth port 305; sixth port 306; first adapter port 307; second adapter port 308; seventh port 309; eighth port 310; ninth port 311; tenth port 312; internal connecting pipe 4; external connecting pipe 5; gas-liquid separator 501; temperature and pressure sensor 502; temperature sensor 503; pressure sensor 504; wind heating thermistor 505; compressor 51; first condenser 52; heat exchanger 53; circuit switching assembly 54; circuit inlet 541; first circuit outlet 542; second circuit outlet 543; radiator 55; electronic pump 56; drive element 57; drive element controller 58; battery assembly 59; power battery pack 591; power battery direct cooling and direct heating plate 592; second condenser 60; evaporator 61. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0034] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "one" or "one" and the like used in this application specification and claims do not indicate a quantitative limitation, but indicate the existence of at least one. "Multiple" includes two, which is equivalent to at least two. "Including" or "including" and the like mean that the elements or objects appearing in front of "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in this application specification and the attached claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0035] The present application provides a valve assembly, which is an integrated structure and is applied to a thermal management system; the valve assembly includes a housing, a switching module and an internal connecting pipeline; the housing includes a plurality of external interfaces, the switching module includes a plurality of internal switching ports, and the internal connecting pipeline connects the internal connecting ports and the external interfaces; wherein the switching module is used to switch the on-off of at least one internal switching port according to different working modes of the thermal management system. The valve assembly, thermal management system and vehicle provided by the present application, the valve assembly is an integrated structure, the internal connecting pipeline connects the internal connecting port and the external interface, the switching module is used to switch the on-off of at least one internal switching port according to different working modes of the thermal management system, the valve assembly applied to the thermal management system is an integrated structure, occupies a small space and has a high degree of integration; the switching of different working modes of the thermal management system can be achieved by switching the internal switching port, which reduces the control difficulty.

[0036] The present application provides a valve assembly, a thermal management system and a vehicle. The valve assembly, the thermal management system and the vehicle of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0037] Figure 1 FIG. 1 is a schematic diagram of an embodiment of a thermal management system of the present invention. Figure 1In the illustrated embodiment, the vehicle includes a thermal management system 100. The thermal management system 100 is used to coordinate the heat of the vehicle and ensure that the various components in the vehicle operate within the nearest temperature range. The thermal management system 100 includes a valve assembly 1. The valve assembly 1 is used to switch between different working modes of the thermal management system 100. The valve assembly 1 is an integrated structure and is applied to the thermal management system 100. In this embodiment, the valve assembly 1 can be an integrated valve module, which is more integrated and modular. In some other embodiments, the valve assembly 1 can also be applied to other pipeline systems such as water or oil circuits of the vehicle, but is not limited thereto. The valve assembly 1 includes a housing 2, a switching module 3 and an internal connecting pipeline 4. The housing 2 and the switching module 3 are connected by the internal connecting pipeline 4. In this embodiment, the switching module 3 can be a disc valve, a cylindrical valve or a ball valve, or other types of switching components, but is not limited thereto. In some embodiments, the switching module 3 is a disc valve, and the internal switching ports 31 of different switching components can be connected to each other by rotating. In this way, it is convenient to switch different working modes of the thermal management system 100. The housing 2 includes a plurality of external interfaces 21, the switching module 3 includes a plurality of internal switching ports 31, and the internal connecting pipe 4 connects the internal connecting port and the external interface 21. The external interface 21 is used to connect other components in the thermal management system 100, and the internal switching port 31 is used to switch different internal connecting pipes 4 to be connected, and is connected to the external switching interface to realize the switching of different working modes of the thermal management system 100. Among them, the switching module 3 is used to switch the on and off of at least one internal switching port 31 according to different working modes of the thermal management system 100. In this embodiment, the thermal management system 100 includes different working modes such as battery heating and battery cooling. In this way, the valve assembly 1 is an integrated structure, the internal connecting pipe 4 connects the internal switching port 31 and the external interface 21, and the switching module 3 is used to switch the on and off of at least one internal switching port 31 according to different working modes of the thermal management system 100. The valve assembly 1 applied to the thermal management system 100 is an integrated structure, occupies a small space and has a high degree of integration; by switching the internal switching port 31, the switching of different working modes of the thermal management system 100 can be realized, which reduces the cost and control difficulty.

[0038] Figure 2 The figure shows a schematic diagram of an embodiment of the thermal management system of the present application in the air conditioning heating mode. Figure 2In the illustrated embodiment, the thermal management system 100 includes an air conditioning heating mode. The valve assembly 1 includes a first electronic expansion valve 11. The first electronic expansion valve 11 may be a heating electronic expansion valve, which has the function of adjusting superheat and throttling pressure reduction. In the present embodiment, when the thermal management system 100 is involved in the air conditioning heating mode, the first electronic expansion valve 11 is in working state. The plurality of external interfaces 21 include a first interface 201, a second interface 202, a third interface 203, and a fourth interface 204. The plurality of internal switching ports 31 include a first port 301, a second port 302, a third port 303, and a fourth port 304. The first interface 201, the first electronic expansion valve 11, the first port 301, the second port 302, and the second interface 202 are connected through the internal connecting pipe 4 and form a first branch 101. The third interface 203, the third port 303, the fourth port 304, and the fourth interface 204 are connected through the internal connecting pipe 4 and form a second branch 102. When the thermal management system 100 is in the air conditioning heating mode, the first branch 101 is connected to the second branch 102. In this way, when the thermal management system 100 is in the air conditioning heating mode, the first electronic expansion valve 11 is opened, and the switching module 3 of the valve assembly 1 is switched to the first port 301 being connected to the second port 302, and the third port 303 being connected to the fourth port 304, so that the first branch 101 is connected to the second branch 102, so that the operation is convenient and fast, and the integration is high.

[0039] In some embodiments, Figure 2 As shown, the thermal management system 100 includes an external communication pipeline 5, a compressor 51, a first condenser 52 and a heat exchanger 53. The fourth interface 204, the compressor 51, the first condenser 52 and the first interface 201 are connected through the external communication pipeline 5 to form a first main path 111. The second interface 202, the heat exchanger 53 and the third interface 203 are connected through the external communication pipeline 5 to form a second main path 112. The first main path 111, the first branch 101, the second main path 112 and the second branch 102 are connected in sequence to form the air conditioning heating mode of the thermal management system 100. Specifically, the fluid medium flows in the pipeline, and the fluid medium passes through the compressor 51, the first condenser 52, the first interface 201, the first electronic expansion valve 11, the first port 301, the second port 302, the second interface 202, the heat exchanger 53, the third interface 203, the third port 303, the fourth port 304, the fourth interface 204 in sequence, and finally returns to the compressor 51. With such arrangement, in the flow path, the fluid medium is condensed and releases heat through the first condenser 52, thereby realizing the air conditioning heating mode of the thermal management system 100. The operation is simple. The first electronic expansion valve 11 is opened, and the switching module 3 in the valve assembly 1 is switched to connect the first port 301 with the second port 302, and the third port 303 with the fourth port 304. This can make the first main path 111, the first branch path 101, the second main path 112 and the second branch path 102 connected in sequence.

[0040] exist Figure 2 In the illustrated embodiment, the thermal management system 100 further includes a first motor circuit 121 and a second motor circuit 122. The thermal management system 100 further includes a circuit switching assembly 54, a radiator 55, an electronic pump 56, a driver 57, and a driver controller 58. The circuit switching assembly 54 may be a three-way valve. The radiator 55 is used for heat dissipation. The electronic pump 56 is used to provide power to the fluid medium in the circuit. The driver 57 may be a driving motor. The driver controller 58 may be a motor controller for controlling the motor. The circuit switching assembly 54 includes a circuit inlet 541, a first circuit outlet 542, and a second circuit outlet 543. The heat exchanger 53, the circuit inlet 541, the first circuit outlet 542, the radiator 55, the electronic pump 56, the driver 57, and the driver controller 58 are sequentially connected to form the first motor circuit 121. The heat exchanger 53, the circuit inlet 541, the second circuit outlet 543, the electronic pump 56, the driver 57, and the driver controller 58 are sequentially connected to form the second motor circuit 122. In multiple working modes, when the heat exchanger 53 is in working state, the driving member 57 can be in shutdown state, and the fluid medium directly enters the third interface 203 through the heat exchanger 53; when the driving member 57 is in working state and heat exchange is required, the electronic pump 56 in the first motor circuit 121 or the second motor circuit 122 starts to work, so that the fluid medium on one side of the driving member 57 and the fluid medium on one side of the valve assembly 1 are heat exchanged through the heat exchanger 53. When the temperature of the driving member 57 reaches the temperature threshold, the circuit switching component 54 is switched to the circuit inlet 541 connected to the first circuit outlet 542, and the first motor circuit 121 is opened, so that the heat dissipation can be assisted by the radiator 55; when the temperature of the driving member 57 is lower than the temperature threshold, the second motor circuit 122 is opened. Such a setting facilitates heat exchange of the driving member 57.

[0041] In some embodiments, Figure 2As shown, the first main path 111 is also provided with a gas-liquid separator 501, which is arranged between the upstream of the compressor 51 and the downstream of the fourth interface 204. The gas-liquid separator 501 is mainly used to separate gas and liquid, ensure that gas enters the compressor 51, and prevent liquid from entering the compressor 51, so as to ensure the safe and normal operation of the compressor 51. In some embodiments, the thermal management system 100 includes at least one temperature sensor 503. The thermal management system 100 includes at least one pressure sensor 504. The thermal management system 100 includes at least one temperature and pressure sensor 502. Among them, the temperature and pressure sensor is a temperature sensor and a pressure sensor arranged in an integrated manner. In this embodiment, a temperature and pressure sensor 502 is arranged between the upstream of the compressor 51 and the downstream of the fourth interface 204, and a temperature sensor 503 and a pressure sensor 504 are arranged between the downstream of the compressor 51 and the upstream of the fifth interface 205. In some embodiments, the temperature sensor 503 is arranged in the first main path 111. The temperature sensor 503 can be arranged upstream of the compressor 51, or downstream of the compressor 51, or both upstream and downstream of the compressor 51. In this way, it is possible to monitor whether the temperature of the compressor 51 is maintained within a normal range, ensure the normal operation of the compressor 51, and improve the safety of the system. In some embodiments, the pressure sensor 504 is arranged on the first main path 111. The pressure sensor 504 can be arranged upstream of the compressor 51, or downstream of the compressor 51, or both upstream and downstream of the compressor 51. In some embodiments, the temperature sensor 503 and the pressure sensor 504 can be arranged as an integrated type or separately. In this way, it is possible to ensure the pressure stability of the compressor 51, monitor whether the pressure of the compressor 51 is maintained within a normal range, ensure the normal operation of the compressor 51, and improve the safety of the system. In some embodiments, the first main path 111 is also provided with a wind heating thermistor 505, i.e., a wind heating PTC, which is arranged in parallel with the first condenser 52 on the first main path 111 and is used to assist heating when the first condenser 52 cannot release enough heat.

[0042] Figure 3 The thermal management system 100 of the present application is a schematic diagram of an embodiment in a battery heating mode. Figure 3In the illustrated embodiment, the thermal management system 100 includes a battery heating mode. The valve assembly 1 also includes a second electronic expansion valve 12 and a first one-way valve 14. The second electronic expansion valve 12 can be a battery electronic expansion valve, which has the function of adjusting superheat and throttling and reducing pressure. In this embodiment, when the thermal management system 100 involves a battery heating mode or a battery cooling mode, the second electronic expansion valve 12 is in working condition. The multiple external interfaces 21 also include a fifth interface 205, a sixth interface 206 and a seventh interface 207, and the multiple internal switching ports 31 also include a fifth port 305 and a sixth port 306. The fifth interface 205, the fifth port 305, the sixth port 306 and the sixth interface 206 are connected through the internal connecting pipe 4 to form the third branch 103; the seventh interface 207, the second electronic expansion valve 12, the first non-return valve 14, the first port 301, the second port 302 and the second interface 202 are connected through the internal connecting pipe 4 to form the fourth branch 104; when the thermal management system 100 is in the battery heating mode, the third branch 103, the fourth branch 104 and the second branch 102 are connected. In this way, when the thermal management system 100 is in the battery heating mode, the second electronic expansion valve 12 is opened, and the switching module 3 of the valve assembly 1 is switched to the fifth port 305 and the sixth port 306 are connected, the first port 301 and the second port 302 are connected, and the third port 303 and the fourth port 304 are connected, so that the third branch 103, the fourth branch 104 and the second branch 102 are connected, so that the operation is convenient and fast, and the integration is high.

[0043] In some embodiments, Figure 3As shown, the thermal management system 100 also includes a battery assembly 59, the fourth interface 204, the compressor 51 and the fifth interface 205 are connected through an external connecting pipe 5 to form a third main circuit 113, the sixth interface 206, the battery assembly 59 and the seventh interface 207 are connected through an external connecting pipe 5 to form a fourth main circuit 114, the third main circuit 113, the third branch 103, the fourth main circuit 114, the fourth branch 104, the second main circuit 112 and the second branch 102 are connected in sequence to form a battery heating mode of the thermal management system 100. Specifically, the fluid medium circulates in the pipeline, and the fluid medium passes through the fourth interface 204, the compressor 51, the fifth interface 205, the fifth port 305, the sixth port 306, the sixth interface 206, the battery assembly 59, the seventh interface 207, the second electronic expansion valve 12, the first one-way valve 14, the first port 301, the second port 302, the second interface 202, the heat exchanger 53, the third interface 203, the third port 303, the fourth port 304, the fourth interface 204, and finally returns to the compressor 51. In this arrangement, in the flow path, the fluid medium is compressed by the compressor 51, thereby releasing heat to the battery assembly 59, opening the second electronic expansion valve 12, and switching the switching module 3 in the valve assembly 1 to connect the fifth port 305 with the sixth port 306, the first port 301 with the second port 302, and the third port 303 with the fourth port 304, so that the third branch 103, the fourth branch 104 and the second branch 102 are connected, thereby realizing the battery heating mode of the thermal management system 100, which is simple and quick to operate.

[0044] In some embodiments, Figure 3As shown, the battery assembly 59 includes a power battery pack 591 and a power battery direct cooling and direct heating plate 592, and the power battery direct cooling and direct heating plate 592 is used to exchange heat with the battery. In this embodiment, a temperature and pressure sensor 502 is provided between the battery assembly 59 and the sixth interface 206, and a temperature sensor 503 is provided between the battery assembly 59 and the seventh interface 207. In some embodiments, the temperature sensor 503 is provided on the fourth main road 114, and the temperature sensor 503 can be provided upstream of the battery assembly 59, or downstream of the battery assembly 59, and can also be provided both upstream of the battery assembly 59 and downstream of the battery assembly 59. In this way, it is possible to monitor whether the temperature of the battery assembly 59 is maintained within the normal range, ensure the normal operation of the battery assembly 59, and improve the safety of the system. In some embodiments, the pressure sensor 504 is provided on the fourth main road 114, and the pressure sensor 504 can be provided upstream of the battery assembly 59, or downstream of the battery assembly 59, and can also be provided both upstream of the battery assembly 59 and downstream of the battery assembly 59. In some embodiments, the temperature sensor 503 and the pressure sensor 504 can be integrated or separately configured. In this way, it is possible to monitor whether the pressure of the battery assembly 59 is maintained within a normal range, ensure the normal operation of the battery assembly 59, and improve the safety of the system.

[0045] Figure 4 The figure shows a schematic diagram of an embodiment of the thermal management system 100 of the present application in the air conditioning heating and battery heating mode. Figure 4 In the illustrated embodiment, the thermal management system 100 includes air conditioning heating and battery heating modes. When the thermal management system 100 is in the air conditioning heating and battery heating mode, the first branch 101, the second branch 102, the third branch 103 and the fourth branch 104 are connected. In this way, when the thermal management system 100 is in the air conditioning heating and battery heating mode, the first electronic expansion valve 11 and the second electronic expansion valve 12 are opened, and the switching module 3 of the valve assembly 1 is switched to the fifth port 305 and the sixth port 306 are connected, the first port 301 is connected to the second port 302, and the third port 303 is connected to the fourth port 304, so that the third branch 103, the fourth branch 104 and the second branch 102 are connected, so that the operation is convenient and fast, and the integration is high.

[0046] In some embodiments, Figure 4As shown, the first main circuit 111, the first branch circuit 101, the second main circuit 112 and the second branch circuit 102 are connected in sequence, and the third main circuit 113, the third branch circuit 103, the fourth main circuit 114, the fourth branch circuit 104, the second main circuit 112 and the second branch circuit 102 are connected in sequence to form the air conditioning heating and battery heating modes of the thermal management system 100. Specifically, the fluid medium flows in the pipeline, and the fluid medium is divided into two paths, one of which passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the first electronic expansion valve 11, the first port 301, the second port 302, the second interface 202, the heat exchanger 53, the third interface 203, the third port 303, the fourth port 304, the fourth interface 204, and finally returns to the compressor 51. The other fluid medium sequentially passes through the fourth interface 204, the compressor 51, the fifth interface 205, the fifth port 305, the sixth port 306, the sixth interface 206, the battery assembly 59, the seventh interface 207, the second electronic expansion valve 12, the first one-way valve 14, the first port 301, the second port 302, the second interface 202, the heat exchanger 53, the third interface 203, the third port 303, the fourth port 304, the fourth interface 204, and finally returns to the compressor 51. In this embodiment, the upstream of the fifth interface 205 is connected between the compressor 51 and the first condenser 52, and the downstream of the first one-way valve 14 is connected between the downstream of the first electronic expansion valve 11 and the upstream of the switching module 3. In this arrangement, in the flow path, the fluid medium is compressed by the compressor 51, thereby releasing heat to the battery assembly 59, and the fluid medium is condensed and releases heat through the first condenser 52. By opening the first electronic expansion valve 11 and the second electronic expansion valve 12, the switching module 3 in the valve assembly 1 is switched to connect the fifth port 305 with the sixth port 306, the first port 301 with the second port 302, and the third port 303 with the fourth port 304, so that the third branch 103, the fourth branch 104 and the second branch 102 are connected, and the air conditioning heating and battery heating modes of the thermal management system 100 can be realized, and the operation is simple and quick.

[0047] Figure 5 The figure shows a schematic diagram of an embodiment of the thermal management system 100 of the present application in the battery cooling mode. Figure 5In the illustrated embodiment, the thermal management system 100 includes a battery cooling mode. The valve assembly 1 also includes a second one-way valve 15, a third one-way valve 16, and a fourth one-way valve 17. The plurality of external interfaces 21 also include an eighth interface 208 and a ninth interface 209, and the plurality of internal switching ports 31 also include a first transfer port 307, a second transfer port 308, a seventh port 309, an eighth port 310, a ninth port 311, and a tenth port 312. The second one-way valve 15 and the third one-way valve 16 are connected in sequence, and the second one-way valve 15 is used to allow the fluid medium to flow from the ninth interface 209 to the seventh interface 207, the third one-way valve 16 is used to allow the fluid medium to flow from the ninth interface 209 to the seventh interface 207, and the fourth one-way valve 17 is used to allow the fluid medium to flow from the sixth interface 206 to the fourth interface 204. The first interface 201, the seventh port 309, the first transfer port 307, the second transfer port 308, the eighth port 310 and the eighth interface 208 are connected through the internal connecting pipe 4 to form the fifth branch 105; the ninth interface 209, the second one-way valve 15, the third one-way valve 16, the second electronic expansion valve 12 and the seventh interface 207 are connected through the internal connecting pipe 4 to form the sixth branch 106; the sixth interface 206, the ninth port 311, the tenth port 312, the fourth one-way valve 17 and the fourth interface 204 are connected through the internal connecting pipe 4 to form the seventh branch 107; when the thermal management system 100 is in the battery cooling mode, the fifth branch 105, the sixth branch 106 and the seventh branch 107 are connected. In this way, when the thermal management system 100 is in the battery cooling mode, the second electronic expansion valve 12 is opened, and the switching module 3 of the valve assembly 1 is switched to connect the seventh port 309, the first transfer port 307, the second transfer port 308 and the eighth port 310, and the ninth port 311 is connected to the tenth port 312, so that the fifth branch 105, the sixth branch 106 and the seventh branch 107 are connected. This makes the operation convenient and fast, and the integration is high.

[0048] In some embodiments, Figure 5As shown, the thermal management system 100 also includes a second condenser 60. The second condenser 60 is used to change the fluid medium from a gaseous state to a liquid state. The eighth interface 208, the second condenser 60 and the ninth interface 209 are connected through the external connecting pipe 5 to form a fifth main path 115, and the first main path 111, the fifth branch 105, the fifth main path 115, the sixth branch 106, the fourth main path 114, and the seventh branch 107 are connected in sequence to form a battery cooling mode of the thermal management system 100. Specifically, the fluid medium circulates in the pipeline, and the fluid medium sequentially passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the seventh port 309, the first transfer port 307, the second transfer port 308, the eighth port 310, the eighth interface 208, the second condenser 60, the ninth interface 209, the second one-way valve 15, the third one-way valve 16, the second electronic expansion valve 12, the seventh interface 207, the battery assembly 59, the sixth interface 206, the ninth port 311, the tenth port 312, the fourth one-way valve 17, the fourth interface 204, and finally returns to the compressor 51. In this embodiment, the flow order of the fluid medium in the fourth main path 114 is the seventh interface 207, the battery assembly 59 and then to the sixth interface 206. In some other embodiments, the flow order of the fluid medium can also be the sixth interface 206, the battery assembly 59 and then to the seventh interface 207, but is not limited thereto. With such arrangement, in the flow path, the fluid medium is liquefied to a lower temperature through the second condenser 60, and then passes through the power battery direct cooling and direct heating plate 592 of the battery assembly 59, and changes from liquid to gas under the influence of the high-temperature power battery pack 591, and then absorbs heat and takes away the heat of the power battery pack 591, thereby realizing battery cooling. The operation is simple, and the second electronic expansion valve 12 is opened, and the switching module 3 in the valve assembly 1 is switched to connect the seventh port 309, the first transfer port 307, the second transfer port 308 and the eighth port 310, and the ninth port 311 is connected to the tenth port 312, so that the fifth branch 105, the sixth branch 106 and the seventh branch 107 are connected, and the battery cooling mode of the thermal management system 100 can be realized. The operation is simple and quick.

[0049] Figure 6 The figure shows a schematic diagram of an embodiment of the thermal management system 100 of the present application in the air conditioning cooling mode. Figure 6In the illustrated embodiment, the thermal management system 100 includes an air conditioning and cooling mode. The valve assembly 1 also includes a third electronic expansion valve 13 and a fifth one-way valve 18. In this embodiment, the third battery expansion valve 13 can be a refrigeration electronic expansion valve. The plurality of external interfaces 21 also include a tenth interface 210 and an eleventh interface 211, the ninth interface 209, the second one-way valve 15, the third electronic expansion valve 13 and the tenth interface 210 are connected through the internal connecting pipe 4 to form the eighth branch 108; the eleventh interface 211, the fifth one-way valve 18 and the fourth interface 204 are connected through the internal connecting pipe 4 to form the ninth branch 109; when the thermal management system 100 is in the air conditioning and cooling mode, the fifth branch 105, the eighth branch 108 and the ninth branch 109 are connected. In this way, when the thermal management system 100 is in the air-conditioning cooling mode, the third electronic expansion valve 13 is opened, and the switching module 3 of the valve assembly 1 is switched to connect the seventh port 309, the first transfer port 307, the second transfer port 308 and the eighth port 310, so that the fifth branch 105, the eighth branch 108 and the ninth branch 109 are connected. This makes the operation convenient and fast, and the integration is high.

[0050] In some embodiments, Figure 6 As shown, the thermal management system 100 further includes an evaporator 61, the tenth interface 210, the evaporator 61 and the eleventh interface 211 are connected through the external connecting pipe 5 to form the sixth main path 116, the first main path 111, the fifth branch 105, the fifth main path 115, the eighth branch 108, the sixth main path 116 and the ninth branch 109 are connected in sequence to form the air conditioning refrigeration mode of the thermal management system 100. Specifically, the fluid medium flows through the pipeline, and the fluid medium passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the seventh port 309, the first transfer port 307, the second transfer port 308, the eighth port 310, the eighth interface 208, the second condenser 60, the ninth interface 209, the second one-way valve 15, the third electronic expansion valve 13, the tenth interface 210, the evaporator 61, the eleventh interface 211, the fifth one-way valve 18, the fourth interface 204, and finally returns to the compressor 51. In this arrangement, in the flow path, the fluid medium absorbs heat through the evaporator 61, takes away the heat in the cockpit to achieve air conditioning and cooling, opens the third electronic expansion valve 13, switches the switching module 3 in the valve assembly 1 to connect the seventh port 309, the first transfer port 307, the second transfer port 308 and the eighth port 310, so that the fifth branch 105, the eighth branch 108 and the ninth branch 109 are connected, and the air conditioning and cooling mode of the thermal management system 100 can be realized, and the operation is simple and quick.

[0051] Figure 7 The figure shows a schematic diagram of an embodiment of the thermal management system 100 of the present application in the battery cooling and air conditioning cooling mode. Figure 7In the illustrated embodiment, the thermal management system 100 includes a battery cooling and air conditioning refrigeration mode. When the thermal management system 100 is in the battery cooling and air conditioning refrigeration mode, the fifth branch 105, the sixth branch 106, the seventh branch 107, the eighth branch 108, and the ninth branch 109 are connected. In this way, when the thermal management system 100 is in the battery cooling and air conditioning refrigeration mode, the second electronic expansion valve 12 and the third electronic expansion valve 13 are opened, and the switching module 3 of the valve assembly 1 is switched to the seventh port 309, the first transfer port 307, the second transfer port 308 and the eighth port 310 are connected, and the tenth port 312 and the ninth port 311 are connected, so that the fifth branch 105, the sixth branch 106, the seventh branch 107, the eighth branch 108, and the ninth branch 109 are connected, so that the operation is convenient and fast, and the integration is high.

[0052] In some embodiments, Figure 7As shown, the first main road 111, the fifth branch 105, the fifth main road 115, the sixth branch 106, the fourth main road 114, and the seventh branch 107 are connected in sequence, and the first main road 111, the fifth branch 105, the fifth main road 115, the eighth branch 108, the sixth main road 116, and the ninth branch 109 are connected in sequence to form a battery cooling and air-conditioning cooling mode of the thermal management system 100. Specifically, a fluid medium flows in the pipeline, and the fluid medium is divided into two paths. One path of the fluid medium passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the seventh port 309, the first transfer port 307, the second transfer port 308, the eighth port 310, the eighth interface 208, the second condenser 60, the ninth interface 209, the second one-way valve 15, the third one-way valve 16, the second electronic expansion valve 12, the seventh interface 207, the battery assembly 59, the sixth interface 206, the ninth port 311, the tenth port 312, the fourth one-way valve 17, the fourth interface 204, and finally returns to the compressor 51. The other fluid medium passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the seventh port 309, the first transfer port 307, the second transfer port 308, the eighth port 310, the eighth interface 208, the second condenser 60, the ninth interface 209, the second check valve 15, the third electronic expansion valve 13, the tenth interface 210, the evaporator 61, the eleventh interface 211, the fifth check valve 18, the fourth interface 204, and finally returns to the compressor 51. In this embodiment, the flow order of the fluid medium in the fourth main path 114 is the seventh interface 207, the battery assembly 59 and then to the sixth interface 206. In some other embodiments, the flow order of the fluid medium can also be the sixth interface 206, the battery assembly 59 and then to the seventh interface 207, but is not limited thereto. In this embodiment, the upstream of the third electronic expansion valve 13 is connected between the second check valve 15 and the third check valve 16, and the downstream of the fifth check valve 18 is connected between the fourth check valve 17 and the fourth interface 204. With such arrangement, in the flow path, the liquefaction temperature is lowered by the second condenser 60, and then passes through the power battery direct cooling and direct heating plate 592 of the battery assembly 59, and changes from liquid to gas under the influence of the high-temperature power battery pack 591, and then absorbs heat and takes away the heat of the power battery pack 591, thereby achieving battery cooling, and the fluid medium also absorbs heat through the evaporator 61, taking away the heat in the cockpit to achieve air conditioning and refrigeration. By opening the second electronic expansion valve 12 and the third electronic expansion valve 13, the switching module 3 in the valve assembly 1 is switched to the seventh port 309, the first adapter port 307, the second adapter port 308 and the eighth port 310 are connected, and the tenth port 312 and the ninth port 311 are connected, so that the fifth branch 105, the sixth branch 106, the seventh branch 107, the eighth branch 108, and the ninth branch 109 are connected, thereby realizing the battery cooling and air conditioning refrigeration modes of the thermal management system 100, and the operation is simple and quick.

[0053] Figure 8 The figure shows a schematic diagram of an embodiment of the thermal management system 100 of the present application in the battery cooling and air conditioning heating mode. Figure 8 In the illustrated embodiment, the thermal management system 100 includes a battery cooling and air conditioning heating mode. The third interface 203, the third one-way valve 16, the second electronic expansion valve 12 and the seventh interface 207 are connected through the internal connecting pipe 4 to form the tenth branch 110; when the thermal management system 100 is in the battery cooling and air conditioning heating mode, the first branch 101, the tenth branch 110 and the seventh branch 107 are connected. In this way, when the thermal management system 100 is in the battery cooling and air conditioning heating mode, the first electronic expansion valve 11 and the second electronic expansion valve 12 are opened, and the switching module 3 of the valve assembly 1 is switched to the first port 301 to communicate with the second port 302, and the ninth port 311 to communicate with the tenth port 312, so that the first branch 101, the tenth branch 110 and the seventh branch 107 are connected, so that the operation is convenient and fast, and the integration is high.

[0054] In some embodiments, Figure 8As shown, the first main circuit 111, the first branch circuit 101, the second main circuit 112, the tenth branch circuit 110, the fourth main circuit 114, and the seventh branch circuit 107 are connected in sequence to form the battery cooling and air conditioning heating mode of the thermal management system 100. Specifically, the fluid medium flows through the pipeline, and the fluid medium passes through the fourth interface 204, the compressor 51, the first condenser 52, the first interface 201, the first electronic expansion valve 11, the first port 301, the second port 302, the second interface 202, the heat exchanger 53, the third interface 203, the third check valve 16, the second electronic expansion valve 12, the seventh interface 207, the battery assembly 59, the sixth interface 206, the ninth port 311, the tenth port 312, the fourth check valve 17, the fourth interface 204, and finally returns to the compressor 51. In this embodiment, the flow order of the fluid medium in the fourth main path 114 is the seventh interface 207, the battery assembly 59 and then the sixth interface 206. In some other embodiments, the flow order of the fluid medium can also be the sixth interface 206, the battery assembly 59 and then the seventh interface 207, but is not limited to this. With such arrangement, in the flow path, the fluid medium passing through the second electronic expansion valve 12 is in liquid state, and the fluid medium passes through the power battery direct cooling and direct heating plate 592 of the battery assembly 59, and changes from liquid state to gas state under the influence of the high-temperature power battery pack 591, thereby absorbing heat and taking away the heat of the power battery pack 591, thereby cooling the battery, and releasing heat through the condensation of the first condenser 52, so that the temperature of the cockpit is increased, thereby achieving battery cooling and air-conditioning heating. The operation is simple, and the first electronic expansion valve 11 and the second electronic expansion valve 12 are opened, and the switching module 3 in the valve assembly 1 is switched to connect the first port 301 and the second port 302, and the ninth port 311 is connected to the tenth port 312, so that the first branch 101, the tenth branch 110 and the seventh branch 107 are connected, thereby realizing the battery cooling and air-conditioning heating mode of the thermal management system 100, and the operation is simple and quick.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A valve assembly, characterized in that: The valve assembly is an integrated structure and is applied to a thermal management system; the valve assembly includes a shell, a switching module and an internal connecting pipeline; the shell includes a plurality of external interfaces, the switching module includes a plurality of internal switching ports, and the internal connecting pipeline connects the internal connecting ports and the external interfaces; wherein the switching module is used to switch the on and off of at least one of the internal switching ports according to different working modes of the thermal management system.

2. The valve assembly according to claim 1, characterized in that The thermal management system includes an air conditioning heating mode; the valve assembly includes a first electronic expansion valve; the multiple external interfaces include a first interface, a second interface, a third interface and a fourth interface, and the multiple internal switching ports include a second port, a first port, a third port and a fourth port, The first interface, the first electronic expansion valve, the first port, the second port and the second interface are connected through the internal connecting pipe to form a first branch; the third interface, the third port, the fourth port and the fourth interface are connected through the internal connecting pipe to form a second branch; when the thermal management system is in the air conditioning heating mode, the first branch and the second branch are connected.

3. The valve assembly according to claim 1, characterized in that The thermal management system includes a battery heating mode; the valve assembly also includes a second electronic expansion valve and a first one-way valve, the multiple external interfaces include a second interface, a third interface, a fourth interface, a fifth interface, a sixth interface and a seventh interface, the multiple internal switching ports include a first port, a second port, a third port, a fourth port, a fifth port and a sixth port, The fifth interface, the fifth port, the sixth port and the sixth interface are connected through the internal connecting pipeline to form a third branch; the seventh interface, the second electronic expansion valve, the first one-way valve, the first port, the second port and the second interface are connected through the internal connecting pipeline to form a fourth branch; the third interface, the third port, the fourth port and the fourth interface are connected through the internal connecting pipeline to form a second branch; when the thermal management system is in the battery heating mode, the third branch, the fourth branch and the second branch are connected.

4. The valve assembly according to claim 2, characterized in that The thermal management system includes air conditioning heating and battery heating modes; the valve assembly also includes a second electronic expansion valve and a first one-way valve, the multiple external interfaces include a sixth interface, a fifth interface and a seventh interface, and the multiple internal switching ports include a fifth port and a sixth port, The fifth interface, the fifth port, the sixth port and the sixth interface are connected through the internal connecting pipe to form a third branch, and the seventh interface, the second electronic expansion valve, the first one-way valve, the first port, the second port and the second interface are connected through the internal connecting pipe to form a fourth branch; when the thermal management system is in the air conditioning heating and battery heating mode, the first branch, the second branch, the third branch and the fourth branch are connected.

5. The valve assembly according to claim 1, characterized in that The thermal management system includes a battery cooling mode; the valve assembly also includes a second electronic expansion valve, a second one-way valve, a third one-way valve and a fourth one-way valve, the multiple external interfaces include a first interface, a fourth interface, a sixth interface, a seventh interface, an eighth interface and a ninth interface, the multiple internal switching ports include a first transfer port, a second transfer port, a seventh port, an eighth port, a ninth port and a tenth port, The first interface, the seventh port, the first transfer port, the second transfer port, the eighth port and the eighth interface are connected through the internal connecting pipeline to form a fifth branch; the ninth interface, the second one-way valve, the third one-way valve, the second electronic expansion valve and the seventh interface are connected through the internal connecting pipeline to form a sixth branch; the sixth interface, the ninth port, the tenth port, the fourth one-way valve and the fourth interface are connected through the internal connecting pipeline to form a seventh branch; when the thermal management system is in the battery cooling mode, the fifth branch, the sixth branch and the seventh branch are connected.

6. The valve assembly according to claim 1, characterized in that The thermal management system includes an air conditioning refrigeration mode; the valve assembly also includes a third electronic expansion valve, a second one-way valve and a fifth one-way valve, the multiple external interfaces include a first interface, a fourth interface, an eighth interface, a ninth interface, a tenth interface and an eleventh interface, the multiple internal switching ports include a first transfer port, a second transfer port, a seventh port and an eighth port, The first interface, the seventh port, the first transfer port, the second transfer port, the eighth port and the eighth interface are connected through the internal connecting pipe to form a fifth branch; the ninth interface, the second one-way valve, the third electronic expansion valve and the tenth interface are connected through the internal connecting pipe to form an eighth branch; the eleventh interface, the fifth one-way valve and the fourth interface are connected through the internal connecting pipe to form a ninth branch; when the thermal management system is in the air-conditioning cooling mode, the fifth branch, the eighth branch and the ninth branch are connected.

7. The valve assembly according to claim 5, characterized in that The thermal management system includes a battery cooling mode and an air conditioning refrigeration mode; the valve assembly also includes a third electronic expansion valve and a fifth one-way valve; the multiple external interfaces include a tenth interface and an eleventh interface, The ninth interface, the second one-way valve, the third electronic expansion valve and the tenth interface are connected to form an eighth branch; the eleventh interface, the fifth one-way valve and the fourth interface are connected through the internal connecting pipe to form a ninth branch; when the thermal management system is in the battery cooling and air conditioning cooling mode, the fifth branch, the sixth branch, the seventh branch, the eighth branch and the ninth branch are connected.

8. The valve assembly according to claim 1, characterized in that The thermal management system includes a battery cooling mode and an air conditioning heating mode; the valve assembly also includes a first electronic expansion valve, a second electronic expansion valve, a third one-way valve and a fourth one-way valve, the multiple external interfaces include a first interface, a second interface, a third interface, a fourth interface, a sixth interface and a seventh interface, the multiple internal switching ports include a second port, a first port, a ninth port and a tenth port, The first interface, the first electronic expansion valve, the first port, the second port and the second interface are connected through the internal connecting pipeline to form a first branch; the third interface, the third one-way valve, the second electronic expansion valve and the seventh interface are connected through the internal connecting pipeline to form a tenth branch; the sixth interface, the ninth port, the tenth port, the fourth one-way valve and the fourth interface are connected through the internal connecting pipeline to form a seventh branch; when the thermal management system is in the battery cooling and air conditioning heating mode, the first branch, the tenth branch and the seventh branch are connected.

9. A thermal management system, characterized in that: include: As for the valve assembly as described in any one of claims 1 to 8 above, the switching module of the valve assembly is used to switch the on and off of at least one internal switching port of the valve assembly according to different working modes of the thermal management system.

10. A vehicle, characterized in that: include: The thermal management system of claim 9.

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