Charging pile thermal management system, charging pile and combined thermal management system

Abstract

A charging pile thermal management system, a charging pile (100) and a combined thermal management system. The charging pile thermal management system comprises: a first heat exchange module (2), the first heat exchange module (2) being in thermally conductive connection to a charging module; and a second heat exchange module (3), the second heat exchange module (3) being in thermally conductive connection to a charging gun, wherein the first heat exchange module (2) and the second heat exchange module (3) are arranged in parallel.

Description

A charging pile thermal management system, a charging pile, and a combined thermal management system

[0001] This application claims priority to Chinese Patent Application No. 202510372286.4, filed with the Chinese Patent Office on March 26, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure belongs to the field of charging pile technology, specifically relating to a charging pile thermal management system, a charging pile, and a combined thermal management system. Background Technology

[0003] With the popularization of new energy vehicles, charging piles, as charging infrastructure, have developed rapidly. As the requirements for charging power continue to increase, the cooling requirements for charging piles are also becoming more stringent. Summary of the Invention

[0004] This disclosure provides a charging pile thermal management system, a charging pile, and a combined thermal management system.

[0005] Firstly, a charging pile thermal management system is disclosed, which includes:

[0006] The first heat exchange module is adapted to be thermally connected to the charging module;

[0007] The second heat exchange module is adapted to be thermally connected to the charging gun;

[0008] The first heat exchange module and the second heat exchange module are connected in parallel.

[0009] In some embodiments, the charging pile thermal management system further includes: a first cooling module, which is connected to a first heat exchange module and a second heat exchange module respectively. The first cooling module is used to deliver a first heat exchange medium to the first heat exchange module and the second heat exchange module to achieve temperature regulation of the first heat exchange module and the second heat exchange module.

[0010] In some embodiments, the charging pile thermal management system further includes: a first switching valve, which is disposed between the outlet of the first cooling module and the inlet of the first heat exchange module, or the first switching valve is disposed in the first heat exchange module, and the first switching valve is used to cut off or restore the flow of the first heat exchange medium in the first heat exchange module.

[0011] In some embodiments, the charging pile thermal management system further includes: a second switching valve, which is disposed between the outlet of the first refrigeration module and the inlet of the second heat exchange module, or the second switching valve is disposed in the second heat exchange module, and the second switching valve is used to cut off or restore the flow of the first heat exchange medium in the second heat exchange module.

[0012] In some embodiments, the first refrigeration module includes: a first gas-liquid separator, a first compressor, and a first condenser connected in sequence;

[0013] The outlet of the first condenser is connected to the inlet of the first heat exchange module and the inlet of the second heat exchange module, respectively. The inlet of the first gas-liquid separator is connected to the outlet of the first heat exchange module and the outlet of the second heat exchange module, respectively.

[0014] In some embodiments, the charging pile thermal management system further includes a control valve for controlling the flow rate and / or velocity of the first heat exchange medium.

[0015] In some embodiments, the charging pile thermal management system further includes a sensor for acquiring temperature and / or pressure information of the first heat exchange medium.

[0016] Secondly, a charging pile is also disclosed, which includes: a charging gun and the aforementioned charging pile thermal management system.

[0017] The charging gun is thermally connected to the second heat exchange module and is used for electrical connection with the vehicle.

[0018] In some embodiments, the charging pile further includes: a charging module, which is electrically connected to the charging gun and thermally connected to the first heat exchange module.

[0019] Thirdly, a combined thermal management system is also disclosed, which includes: the aforementioned charging pile thermal management system, or the charging pile; and an on-board thermal management system, which is installed in the vehicle.

[0020] In some embodiments, the vehicle thermal management system includes a second refrigeration module connected to a second heat exchange module. The second refrigeration module is used to deliver a second heat exchange medium to the second heat exchange module to achieve temperature regulation of the second heat exchange module.

[0021] In some embodiments, the combined thermal management system further includes a heat exchanger disposed in the vehicle;

[0022] The heat exchanger includes a first heat exchange channel and a second heat exchange channel that are arranged in parallel and thermally connected. The first heat exchange channel is connected to the second heat exchange module, and the second heat exchange channel is connected to the second refrigeration module, so that the first heat exchange medium and the second heat exchange medium can exchange heat.

[0023] In some embodiments, the vehicle thermal management system further includes: a third heat exchange module, which is connected to and parallel to the second refrigeration module, the second refrigeration module being used to deliver a second heat exchange medium to the third heat exchange module to achieve temperature regulation of the third heat exchange module, and the third heat exchange module being used to thermally connect with the vehicle's battery pack.

[0024] In some embodiments, the third heat exchange module is connected to the second heat exchange module so that the first heat exchange medium flows to the third heat exchange module to achieve temperature regulation of the third heat exchange module.

[0025] In some embodiments, the second heat exchange module includes: a first cooling pipe and a second cooling pipe;

[0026] The first cooling pipeline includes a first pipe section, a second pipe section, and a third pipe section. The inlet of the first pipe section is connected to the outlet of the first refrigeration module. The outlet of the first pipe section is connected to the inlet of the second pipe section and the inlet of the third pipe section, respectively. The outlet of the second pipe section is connected to the inlet of the second heat exchange channel, and the outlet of the third pipe section is connected to the inlet of the third heat exchange module.

[0027] The second cooling pipeline includes a fourth section, a fifth section, and a sixth section. The outlet of the fourth section is connected to the inlet of the first refrigeration module. The inlet of the fourth section is connected to the outlet of the fifth section and the outlet of the sixth section, respectively. The inlet of the fifth section is connected to the outlet of the second heat exchange channel, and the inlet of the sixth section is connected to the outlet of the third heat exchange module.

[0028] In some embodiments, the charging pile thermal management system further includes: a second switching valve, which is disposed on a second pipe section and is used to cut off or restore the flow of the first heat exchange medium in the second pipe section.

[0029] In some embodiments, the charging pile thermal management system further includes a third switching valve, which is disposed on a third pipe section and is used to cut off or restore the flow of the first heat exchange medium in the third pipe section.

[0030] In some embodiments, the charging pile thermal management system further includes: a fourth switching valve, which is disposed on the sixth pipe section and is used to cut off or restore the flow of the first heat exchange medium in the sixth pipe section.

[0031] In some embodiments, the second refrigeration module includes: a second gas-liquid separator, a second compressor, and a second condenser connected in sequence;

[0032] The outlet of the second condenser is connected to the inlet of the second heat exchange channel and the inlet of the third heat exchange module, respectively. The inlet of the second gas-liquid separator is connected to the outlet of the second heat exchange channel and the outlet of the third heat exchange module, respectively.

[0033] In some embodiments, the vehicle thermal management system further includes a fifth switching valve, which is disposed between the outlet of the second refrigeration module and the inlet of the third heat exchange module, and is used to cut off or restore the flow of the second heat exchange medium in the third heat exchange module.

[0034] In some embodiments, the vehicle thermal management system further includes a sixth switching valve, which is disposed between the outlet of the second refrigeration module and the inlet of the second heat exchange channel, and is used to cut off or restore the flow of the second heat exchange medium in the second heat exchange channel.

[0035] In some embodiments, the vehicle thermal management system further includes a one-way valve disposed between the outlet of the second heat exchange channel and the inlet of the second refrigeration module. The one-way valve is used to guide the second heat exchange medium flowing out from the outlet of the second heat exchange channel to flow unidirectionally to the inlet of the second refrigeration module.

[0036] In some embodiments, the vehicle thermal management system further includes a seventh switching valve, which is disposed at the inlet of the second refrigeration module and is used to cut off or resume the flow of the second heat exchange medium toward the second refrigeration module.

[0037] In this embodiment, the first heat exchange module is thermally connected to the charging module, and the second heat exchange module is thermally connected to the charging gun, with the first and second heat exchange modules connected in parallel. This allows for simultaneous cooling of both the charging module and the charging gun, improving their cooling efficiency and enhancing the charging reliability of the charging station.

[0038] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0039] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0040] Figure 1 is a schematic diagram of a thermal management system provided in an embodiment of this disclosure;

[0041] Figure 2 is a schematic diagram of the working principle of a thermal management system provided in an embodiment of this disclosure. 1. First refrigeration module; 11. First gas-liquid separator; 12. First compressor; 13. First condenser; 2. First heat exchange module; 3. Second heat exchange module; 31. First cooling pipe; 311. First pipe section; 312. Second pipe section; 313. Third pipe section; 32. Second cooling pipe; 321. Fourth pipe section; 322. Fifth pipe section; 323. Sixth pipe section; 4. Second refrigeration module; 41. Second gas-liquid separator; 42. Second compressor; 43. Second condenser; 5. Heat exchanger; 6. Third heat exchange module; 7. Check valve; 81. First switching valve; 82. Second switching valve; 83. Third switching valve; 84. Fourth switching valve; 85. Fifth switching valve; 86. Sixth switching valve; 87. Seventh switching valve; 91. First electronic expansion valve; 92. Second electronic expansion valve; 93. Third electronic expansion valve; 94. Fourth electronic expansion valve; 101. First throttle valve, 102. Second throttle valve, 103. Third throttle valve, 104. Fourth throttle valve, T1. First temperature sensor, T2. Second temperature sensor, T3. Third temperature sensor, T4. Fourth temperature sensor, PT1. First pressure-temperature sensor, PT2. First pressure-temperature sensor, PT3. First pressure-temperature sensor, PT4. First pressure-temperature sensor, PT5. First pressure-temperature sensor, PT6. First pressure-temperature sensor, PT7. First pressure-temperature sensor, PT8. First pressure-temperature sensor, PT9. First pressure-temperature sensor, 100. Charging pile, 200. Vehicle. Detailed Implementation

[0042] Embodiments of this disclosure will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this disclosure, and should not be construed as limiting this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0043] The terms "first" and "second" in this disclosure may explicitly or implicitly include one or more of the features. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0045] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0046] This disclosure provides a thermal management system, which will be described in detail below with reference to the accompanying drawings.

[0047] Referring to Figure 1, a structural schematic diagram of a thermal management system provided in an embodiment of the present disclosure is shown; referring to Figure 2, a working principle diagram of a thermal management system provided in an embodiment of the present disclosure is shown.

[0048] As shown in Figures 1 and 2, this disclosure provides a charging pile thermal management system, including: a first heat exchange module 2, which is adapted to be thermally connected to a charging module; and a second heat exchange module 3, which is adapted to be thermally connected to a charging gun; wherein the first heat exchange module 2 and the second heat exchange module 3 are arranged in parallel.

[0049] In this embodiment, the first heat exchange module 2 is thermally connected to the charging module, and the second heat exchange module 3 is thermally connected to the charging gun, with the first heat exchange module 2 and the second heat exchange module 3 connected in parallel. This allows for simultaneous cooling of both the charging module and the charging gun, improving their cooling efficiency and enhancing the charging reliability of the charging pile 100.

[0050] It should be noted that the heat exchange modules (including the first heat exchange module 2, the second heat exchange module 3, and the third heat exchange module 6 mentioned below) in this embodiment refer to modules with heat exchange functions. These can be standalone structural components with heat exchange functions, such as cold plates, which indirectly exchange heat through thermal contact with the charging module and / or charging gun and / or battery pack. Alternatively, they can be structures with heat exchange functions formed inside the charging module and / or charging gun and / or battery pack, such as flow channels, where direct heat exchange occurs between the first heat exchange medium within the flow channels and the charging module and / or charging gun and / or battery pack. No limitation is made here, and those skilled in the art can adjust them according to actual needs. Furthermore, the first heat exchange medium and the second heat exchange medium mentioned below include, but are not limited to, oil, water, air, Freon, alkanes, propylene glycol, or ethylene glycol.

[0051] In some embodiments, the charging pile thermal management system further includes: a first cooling module 1, which is connected to a first heat exchange module 2 and a second heat exchange module 3 respectively. The first cooling module 1 is used to deliver a first heat exchange medium to the first heat exchange module 2 and the second heat exchange module 3 to achieve temperature regulation of the first heat exchange module 2 and the second heat exchange module 3.

[0052] In this embodiment, a first cooling module 1 is provided, which is connected to a first heat exchange module 2 and a second heat exchange module 3. This allows the first cooling module 1 to simultaneously supply a first heat exchange medium to both the first heat exchange module 2 and the second heat exchange module 3. As a result, a portion of the first heat exchange medium can directly exchange heat with the charging module through the first heat exchange module 2, while another portion can directly exchange heat with the charging gun through the second heat exchange module 3. This further improves the cooling effect of the charging module and the charging gun.

[0053] In some embodiments, the first refrigeration module 1 includes a first gas-liquid separator 11, a first compressor 12, and a first condenser 13 connected in sequence. The outlet of the first condenser 13 is connected to the inlet of the first heat exchange module 2 and the inlet of the second heat exchange module 3, respectively. The inlet of the first gas-liquid separator 11 is connected to the outlet of the first heat exchange module 2 and the outlet of the second heat exchange module 3, respectively. The first compressor 12 compresses the first heat exchange medium into a high-temperature, high-pressure gas and provides power for the circulation of the first heat exchange medium. The first condenser 13 cools the high-temperature, high-pressure gas into a medium-temperature liquid. The first gas-liquid separator 11 separates the gas and liquid, allowing only the gas to enter the downstream first compressor 12 and first condenser 13, primarily protecting the first compressor 12 and first condenser 13.

[0054] In order to better control the flow path of the first heat exchange medium and thus realize the switching of different operating conditions, the charging pile thermal management system of this disclosure embodiment also includes a first switching valve 81 and a second switching valve 82. It should be noted that this disclosure embodiment does not limit the type of switching valve. In one embodiment, in order to realize automatic control, the switching valve can be a solenoid valve.

[0055] The first switching valve 81 is disposed between the outlet of the first refrigeration module 1 and the inlet of the first heat exchange module 2, or the first switching valve 81 is disposed on the first heat exchange module 2. The first switching valve 81 is used to cut off or restore the flow of the first heat exchange medium within the first heat exchange module 2. Thus, by opening or closing the first switching valve 81, the flow of the first heat exchange medium within the first heat exchange module 2 can be restored or cut off, allowing the charging module to switch between continuous cooling and uncooled states. It should be noted that the accompanying drawings only show the connecting pipe between the outlet of the first refrigeration module 1 and the inlet of the first heat exchange module 2. In practical applications, those skilled in the art can also place the first switching valve 81 on the first heat exchange module 2; this is not a limitation.

[0056] The second switching valve 82 is disposed between the outlet of the first refrigeration module 1 and the inlet of the second heat exchange module 3, or the second switching valve 82 is disposed on the second heat exchange module 3. The second switching valve 82 is used to cut off or restore the flow of the first heat exchange medium within the second heat exchange module 3. Thus, by opening or closing the second switching valve 82, the flow of the first heat exchange medium within the second heat exchange module 3 can be restored or cut off, allowing the charging gun to switch between continuous cooling and uncooled states. It should be noted that the accompanying drawings only show the second switching valve 82 disposed on the second heat exchange module 3. In practical applications, those skilled in the art can also dispose of the second switching valve 82 on the connecting pipe between the outlet of the first refrigeration module 1 and the inlet of the second heat exchange module 3; this is not a limitation here.

[0057] In summary, the charging pile thermal management system provided in this disclosure has at least the following advantages:

[0058] In this embodiment, the first heat exchange module is thermally connected to the charging module, and the second heat exchange module is thermally connected to the charging gun, with the first and second heat exchange modules connected in parallel. This allows for simultaneous cooling of both the charging module and the charging gun, improving their cooling efficiency and enhancing the charging reliability of the charging station.

[0059] This disclosure also provides a charging pile 100, including: a charging gun and a charging pile thermal management system according to any of the above embodiments; the charging gun is thermally connected to a second heat exchange module 3, and the charging gun is used for electrical connection with a vehicle 200. Thus, due to the provision of the second heat exchange module 3, and through the thermal connection between the second heat exchange module 3 and the charging gun, sufficient cooling of the charging gun can be achieved, which is beneficial to improving the charging reliability of the charging pile 100.

[0060] It should be noted that in this embodiment, the structure of the charging pile thermal management system is the same as that of the charging pile thermal management system in any of the above embodiments, and its beneficial effects are also similar, so it will not be described in detail here.

[0061] In some embodiments, the charging pile 100 further includes a charging module, which is electrically connected to the charging gun and thermally connected to the first heat exchange module 2. The charging module is used to electrically connect to an external power supply device, and it can adjust the AC power from the dedicated power grid line to a power level matching the battery pack, thereby transmitting it to the battery pack through the charging gun to achieve fast charging.

[0062] In this embodiment, the inclusion of a first heat exchange module 2, which is thermally connected to the charging module, ensures adequate cooling of the charging module. Furthermore, the parallel connection of the first heat exchange module 2 and the second heat exchange module 3 allows for simultaneous cooling of both the charging gun and the charging module, further enhancing the charging reliability of the charging pile 100.

[0063] This disclosure also provides a combined thermal management system, which includes: the above-mentioned charging pile thermal management system, or charging pile 100; and an on-board thermal management system, which is installed in vehicle 200.

[0064] Furthermore, the vehicle thermal management system includes a second refrigeration module 4, which is connected to the second heat exchange module 3. The second refrigeration module 4 is used to deliver a second heat exchange medium to the second heat exchange module 3 to achieve temperature regulation of the second heat exchange module 3.

[0065] In this embodiment, an on-board thermal management system is provided, which includes a second cooling module 4 connected to a second heat exchange module 3. Thus, when the first cooling module 1 cannot meet the cooling requirements of the charging gun, the second cooling module 4 can provide auxiliary cooling, thereby improving the cooling effect of the charging gun and ensuring it always operates within a suitable temperature range. This improves the charging reliability of the charging pile 100.

[0066] It should be noted that in this embodiment, the structure of the charging pile thermal management system or the charging pile is the same as that of any of the above embodiments, and its beneficial effects are also similar, so it will not be described in detail here.

[0067] In some embodiments, the combined thermal management system further includes: a heat exchanger 5 disposed in the vehicle 200; the heat exchanger 5 includes a first heat exchange channel and a second heat exchange channel arranged in parallel and thermally connected, the first heat exchange channel being connected to a second heat exchange module 3, and the second heat exchange channel being connected to a second refrigeration module 4, so that the first heat exchange medium and the second heat exchange medium exchange heat. The heat exchanger 5 includes, but is not limited to, a plate heat exchanger.

[0068] In this embodiment, a heat exchanger 5 is provided, with its first heat exchange channel connected to the second heat exchange module 3 and its second heat exchange channel connected to the second cooling module 4. Thus, through heat exchange between the first heat exchange medium flowing through the first heat exchange channel and the second heat exchange medium flowing through the second heat exchange channel, the temperature of the second heat exchange medium can be reduced, thereby achieving auxiliary cooling of the charging gun. It is understood that when the charging gun does not require auxiliary cooling, i.e., when the charging gun is only cooled by the charging pile thermal management system, the heat exchanger 5 does not participate in heat exchange, and the first heat exchange channel only serves a connecting function.

[0069] In some embodiments, the vehicle thermal management system further includes: a third heat exchange module 6, which is connected to the second refrigeration module 4 and is arranged in parallel with the heat exchanger 5. The second refrigeration module 4 is used to deliver a second heat exchange medium to the third heat exchange module 6 to achieve temperature regulation of the third heat exchange module 6. The third heat exchange module 6 is used to thermally connect with the battery pack of the vehicle 200.

[0070] In this embodiment of the disclosure, since a third heat exchange module 6 is provided that is thermally connected to the battery pack, and the third heat exchange module 6 is connected to the second cooling module 4, the cooling of the battery pack by the second cooling module 4 can be achieved.

[0071] In some embodiments, the third heat exchange module 6 is connected to the second heat exchange module 3 so that the first heat exchange medium flows to the third heat exchange module 6 to achieve temperature regulation of the third heat exchange module 6.

[0072] In this embodiment, since the third heat exchange module 6 is connected to the second heat exchange module 3, on the one hand, in a low-temperature environment, the first heat exchange medium that exchanges heat with the second heat exchange module 3 and is heated can flow to the third heat exchange module 6, thereby preheating the third heat exchange module 6. This means the heat generated during charging can be used to preheat the battery pack, saving energy and allowing the battery pack to quickly reach a suitable temperature range, thus improving the charging rate. On the other hand, since the second heat exchange module 3 is also connected to the first cooling module 1, the third heat exchange module 6 can also be connected to the first cooling module 1. Thus, in the event of a failure of the vehicle thermal management system (i.e., the second cooling module 4 is not working), the first cooling module 1 can cool the battery pack, effectively preventing thermal runaway of the battery pack during high-power fast charging and further improving the charging reliability of the charging pile.

[0073] In some embodiments, the second heat exchange module 3 includes: a first cooling pipe 31 and a second cooling pipe 32; the first cooling pipe 31 includes a first pipe segment 311, a second pipe segment 312 and a third pipe segment 313, the inlet of the first pipe segment 311 is connected to the outlet of the first refrigeration module 1, the outlet of the first pipe segment 311 is connected to the inlet of the second pipe segment 312 and the inlet of the third pipe segment 313 respectively, the outlet of the second pipe segment 312 is connected to the inlet of the second heat exchange channel, and the outlet of the third pipe segment 313 is connected to the inlet of the third heat exchange module 6; the second cooling pipe 32 includes a fourth pipe segment 321, a fifth pipe segment 322 and a sixth pipe segment 323, the outlet of the fourth pipe segment 321 is connected to the inlet of the first refrigeration module 1, the inlet of the fourth pipe segment 321 is connected to the outlet of the fifth pipe segment 322 and the outlet of the sixth pipe segment 323 respectively, the inlet of the fifth pipe segment 322 is connected to the outlet of the second heat exchange channel, and the inlet of the sixth pipe segment 323 is connected to the outlet of the third heat exchange module 6.

[0074] In other words, the second heat exchange module 3 can be selectively connected to either the heat exchanger 5 or the third heat exchange module 6. Thus, when the second heat exchange module 3 is connected to the heat exchanger 5, the first cooling module 1 and / or the second cooling module 4 can cool the charging module and the charging gun; when the second heat exchange module 3 is connected to the third heat exchange module 6, preheating or forced cooling of the battery pack can be achieved.

[0075] In one embodiment, the first pipe segment 311 and the fourth pipe segment 321 can be integrated with the charging gun, and the second pipe segment 312, the third pipe segment 313, the fifth pipe segment 322, and the sixth pipe segment 323 can be disposed within the vehicle 200. Specifically, the charging gun includes a cable and a charging head, and the first pipe segment 311 and the fourth pipe segment 321 extend along the length of the cable and are spaced apart around the periphery of the cable. The first pipe segment 311, with its end facing away from the charging head, is connected to the pipeline of the charging pile's thermal management system. The end of the first pipe segment 311 closest to the charging head extends to the charging head and has a first quick-connect connector at its end. Correspondingly, the second pipe segment 312 and the third pipe segment 313, located within the vehicle 200, have a second quick-connect connector at their intersection. When the charging gun is inserted into the vehicle 200 for charging, the first and second quick-connect connectors are connected to establish communication between the first and second pipe segments 311 and 312, and between the first and third pipe segments 311 and 313, thus forming a complete circuit and achieving the circulation of the first heat exchange medium. It should be noted that the first cooling pipe 31 and the second cooling pipe 32 have the same structure, which will not be described in detail here.

[0076] Furthermore, to better control the flow path of the first heat exchange medium and / or the second heat exchange medium, thereby enabling switching between different operating conditions, the combined thermal management system of this disclosure embodiment further includes multiple switching valves, namely a first switching valve 81, a second switching valve 82, a third switching valve 83, a fourth switching valve 84, a fifth switching valve 85, a sixth switching valve 86, and a seventh switching valve 87. It should be noted that this disclosure embodiment does not limit the type of switching valves; in one embodiment, to achieve automated control, the switching valves may be solenoid valves.

[0077] The first switching valve 81 is located between the outlet of the first refrigeration module 1 and the inlet of the first heat exchange module 2, or the first switching valve 81 is located in the first heat exchange module 2. The first switching valve 81 is used to cut off or restore the flow of the first heat exchange medium in the first heat exchange module 2.

[0078] The second switching valve 82 is disposed between the outlet of the first refrigeration module 1 and the inlet of the second heat exchange module 3, or the second switching valve 82 is disposed on the second heat exchange module 3. The second switching valve 82 is used to cut off or restore the flow of the first heat exchange medium in the second heat exchange module 3. Specifically, the second switching valve 82 is disposed on the second pipe section 312, and the second switching valve 82 is used to cut off or restore the flow of the first heat exchange medium in the second pipe section 312.

[0079] The third switching valve 83 is installed on the third pipe section 313. The third switching valve 83 is used to cut off or restore the flow of the first heat exchange medium in the third pipe section 313.

[0080] The fourth switching valve 84 is installed on the sixth pipe section 323. The fourth switching valve 84 is used to cut off or restore the flow of the first heat exchange medium in the sixth pipe section 323.

[0081] The fifth switching valve 85 is located between the outlet of the second refrigeration module 4 and the inlet of the third heat exchange module 6. The fifth switching valve 85 is used to cut off or restore the flow of the second heat exchange medium in the third heat exchange module 6.

[0082] The sixth switching valve 86 is located between the outlet of the second refrigeration module 4 and the inlet of the second heat exchange channel. The sixth switching valve 86 is used to cut off or restore the flow of the second heat exchange medium in the second heat exchange channel.

[0083] The seventh switching valve 87 is located at the inlet of the second refrigeration module 4. The seventh switching valve 87 is used to cut off or restore the flow of the second heat exchange medium to the second refrigeration module 4.

[0084] In this way, when the charging pile thermal management system cools the charging module and the charging gun, the first switch valve 81 and the second switch valve 82 can be opened, and the third switch valve 83, the fourth switch valve 84, the fifth switch valve 85, the sixth switch valve 86 and the seventh switch valve 87 can be closed, so that the first cooling module 1 cools the charging module and the charging gun respectively. During this process, the heat exchanger 5 does not participate in heat exchange, and the first heat exchange channel only serves to connect.

[0085] When the charging pile thermal management system cools the charging module and charging gun and preheats the battery pack, it can control the first switch valve 81, the third switch valve 83 and the fourth switch valve 84 to open, and the second switch valve 82, the fifth switch valve 85, the sixth switch valve 86 and the seventh switch valve 87 to close, so that the heat generated by the charging gun preheats the battery pack.

[0086] When the charging pile thermal management system cools the charging module and the charging gun, and the vehicle thermal management system cools the charging gun, the first switch valve 81, the second switch valve 82, the sixth switch valve 86 and the seventh switch valve 87 are opened, and the third switch valve 83, the fourth switch valve 84 and the fifth switch valve 85 are closed, so that the first cooling module 1 cools the charging module and the charging gun at the same time, and the second cooling module 4 provides auxiliary cooling for the charging gun.

[0087] When the charging pile thermal management system cools the charging module and charging gun, and the vehicle thermal management system cools the charging gun and battery pack, the first switching valve 81, the second switching valve 82, the fifth switching valve 85, the sixth switching valve 86 and the seventh switching valve 87 are opened, and the third switching valve 83 and the fourth switching valve 84 are closed, so that the first cooling module 1 cools the charging module and the charging gun at the same time, and the second cooling module 4 cools the charging gun and the battery pack.

[0088] When the charging pile thermal management system cools the battery pack, it controls the third switch valve 83 and the fourth switch valve 84 to open, and the first switch valve 81, the second switch valve 82, the fifth switch valve 85, the sixth switch valve 86 and the seventh switch valve 87 to close, so that the first cooling module 1 can force cooling of the battery pack to prevent thermal runaway of the battery pack.

[0089] Furthermore, the second refrigeration module 4 includes a second gas-liquid separator 41, a second compressor 42, and a second condenser 43 connected in sequence. The outlet of the second condenser 43 is connected to the inlet of the second heat exchange channel and the inlet of the third heat exchange module 6, respectively. The inlet of the second gas-liquid separator 41 is connected to the outlet of the second heat exchange channel and the outlet of the third heat exchange module 6, respectively. The second compressor 42 is used to compress the second heat exchange medium into a high-temperature, high-pressure gas and provide power for the circulation of the second heat exchange medium. The second condenser 43 is used to cool the high-temperature, high-pressure gas into a medium-temperature liquid. The second gas-liquid separator 41 is used to separate the gas and liquid, allowing only the gas to enter the downstream second compressor 42 and second condenser 43, primarily serving to protect the second compressor 42 and second condenser 43.

[0090] In some embodiments, the thermal management system further includes a one-way valve 7, which is disposed between the outlet of the second heat exchange channel and the inlet of the second refrigeration module 4. The one-way valve 7 is used to guide the second heat exchange medium flowing out of the outlet of the second heat exchange channel to flow unidirectionally to the inlet of the second refrigeration module 4. That is, the one-way valve 7 only allows the second heat exchange medium to flow unidirectionally. In this way, when the second heat exchange module 3 and the third heat exchange module 6 are connected, it can effectively prevent a portion of the first heat exchange medium from entering the heat exchanger 5 from other pipelines of the vehicle thermal management system, which is beneficial to improving the preheating or cooling effect of the third heat exchange module 6.

[0091] In some embodiments, the charging pile thermal management system and / or the vehicle-mounted thermal management system further include control valves for controlling the flow rate and / or velocity of the heat exchange medium. Specifically, the charging pile thermal management system and the vehicle-mounted thermal management system include multiple connecting pipes for connecting various modules in the thermal management system, and control valves are disposed on the connecting pipes. By setting control valves, the flow rate and velocity of the first heat exchange medium and / or the second heat exchange medium in the connecting pipes can be precisely controlled, thereby meeting the thermal management requirements under different operating conditions. The aforementioned modules include, but are not limited to, a first refrigeration module 1, a second refrigeration module 4, a first heat exchange module 2, a second heat exchange module 3, a third heat exchange module 6, and a heat exchanger 5.

[0092] The control valves disclosed herein include, but are not limited to, electronic expansion valves and throttle valves, wherein the electronic expansion valves can be bidirectional electronic expansion valves capable of bidirectional flow. Specifically, the inlet and outlet of the first heat exchange module 2 are respectively provided with a first electronic expansion valve 91 and a first throttle valve 101; the inlet and outlet of the second heat exchange module 3 are respectively provided with a second electronic expansion valve 92 and a second throttle valve 102; the inlet and outlet of the third heat exchange module 6 are respectively provided with a third electronic expansion valve 93 and a third throttle valve 103; and the inlet and outlet of the second heat exchange channel of the heat exchanger 5 are respectively provided with a fourth electronic expansion valve 94 and a fourth throttle valve 104. The electronic expansion valves located at the module inlets can precisely adjust the flow rate and / or velocity of the heat exchange medium flowing into each module according to a preset program, and the throttle valves located at the module outlets can further fine-tune the flow rate and / or velocity of the heat exchange medium flowing out of each module. Through the combined use of the electronic expansion valves and throttle valves, the flow state of the first heat exchange medium and / or the second heat exchange medium in each module can be optimized, thereby improving heat exchange efficiency.

[0093] Furthermore, to further accurately monitor the thermal management system and respond promptly to different operating conditions, the charging pile thermal management system and / or the vehicle-mounted thermal management system also include sensors. These sensors are used to acquire temperature and / or pressure information of the heat exchange medium. Specifically, the sensors are installed on the connecting pipes mentioned above. It should be noted that the sensors include, but are not limited to, temperature sensors, pressure sensors, and pressure-temperature sensors. Specifically, the temperature sensor is used to acquire temperature information of the first and / or second heat exchange medium, the pressure sensor is used to acquire pressure information of the first and / or second heat exchange medium, and the pressure-temperature sensor is used to acquire both pressure and temperature information of the first and / or second heat exchange medium.

[0094] Specifically, the inlet and outlet of the first compressor 12 are respectively equipped with a first pressure and temperature sensor PT1 and a second pressure and temperature sensor PT2; the inlet of the first heat exchange module 2 is equipped with a first temperature sensor T1 and the outlet is equipped with a fourth pressure and temperature sensor PT4; the inlet of the second heat exchange module 3 is equipped with a second temperature sensor T2 and the outlet is equipped with a third pressure and temperature sensor PT3; the inlet of the third heat exchange module 6 is equipped with a third temperature sensor T3 and the outlet is equipped with an eighth pressure and temperature sensor PT8; the inlet of the second heat exchange channel of the heat exchanger 5 is equipped with a fourth temperature sensor T4 and the outlet is equipped with a ninth pressure and temperature sensor PT9; the outlet of the first heat exchange channel of the heat exchanger 5 is equipped with a fifth pressure and temperature sensor PT5; and the inlet and outlet of the second compressor 42 are respectively equipped with a sixth pressure and temperature sensor PT6 and a seventh pressure and temperature sensor PT7.

[0095] Referring to Figures 1 and 2, the working principle of the combined thermal management system according to the embodiments of this disclosure will be described in detail below.

[0096] When the charging gun is inserted into the vehicle 200 for fast charging, the charging pile thermal management system starts working. Specifically, it controls the opening of the first switching valve 81 and the second switching valve 82, and the closing of the third switching valve 83, the fourth switching valve 84, the fifth switching valve 85, the sixth switching valve 86, and the seventh switching valve 87. It also starts the first refrigeration module 1, and the first heat exchange medium from the first gas-liquid separator 11 is compressed into a high-temperature and high-pressure gas by the first compressor 12 and flows to the first condenser 13. The liquid is cooled to a medium temperature by the first condenser 13. A portion of the liquid is expanded into a low temperature gas by the first electronic expansion valve 91 and flows to the first heat exchange module 2. After exchanging heat with the first heat exchange module 2, it returns to the first gas-liquid separator 11 to complete the cycle, thereby cooling the charging module. Another portion of the liquid is expanded into a low temperature gas by the second electronic expansion valve 92 and flows sequentially through the first cooling pipe 31 of the second heat exchange module 3, the first heat exchange channel of the heat exchanger 5, and the second cooling pipe 32 of the second heat exchange module 3 to exchange heat with the second heat exchange module 3. After returning to the first gas-liquid separator 11 to complete the cycle, the charging gun is cooled.

[0097] Meanwhile, the vehicle 200 reads the temperature of the battery pack and controls the preheating or cooling of the battery pack. Specifically, the battery pack operates under several conditions. It should be noted that the first preset temperature T mentioned below in this embodiment refers to... min This refers to the lower limit of the temperature when the battery pack is operating normally, the second preset temperature T. C This refers to the upper limit of the battery pack's temperature during normal operation, the third preset temperature T. max The first preset temperature refers to the operating temperature when the battery pack is about to experience thermal runaway. The second preset temperature refers to the upper limit of the temperature when the charging gun is operating normally. This disclosure does not specify the values ​​of the above four preset temperatures, and those skilled in the art can adjust them according to actual needs.

[0098] (1) Battery pack preheating condition

[0099] When the temperature of the battery pack read by vehicle 200 is lower than the first preset temperature, i.e., T < T min When the battery pack requires preheating, the system immediately opens the first switching valve 81, the third switching valve 83, and the fourth switching valve 84, while closing the second switching valve 82, the fifth switching valve 85, the sixth switching valve 86, and the seventh switching valve 87. This causes the first heat exchange medium flowing through the first cooling pipe 31 of the second heat exchange module 3 to flow to the third heat exchange module 6 instead of entering the heat exchanger 5. Instead, the medium flows to the third heat exchange module 6, exchanges heat with it, and then returns to the second cooling pipe 32 of the second heat exchange module 3. During this process, the temperature of the third heat exchange module 6 rises, while the temperature of the first heat exchange medium flowing through it decreases. This not only achieves preheating of the battery pack but also results in a lower temperature for the first heat exchange medium returning to the second cooling pipe 32, leading to a more significant cooling effect on the charging gun.

[0100] (2) Battery pack does not require preheating or cooling (i.e., the on-board thermal management system only provides auxiliary cooling for the charging gun).

[0101] When the temperature of the battery pack read by vehicle 200 is greater than or equal to the first preset temperature and less than or equal to the second preset temperature, i.e., T min ≤T≤T C When the battery pack does not require preheating or cooling, the temperature at the outlet of the second heat exchange module 3 is read. If the temperature at the outlet of the second heat exchange module 3 is greater than the preset third temperature, the charging gun is determined to require auxiliary cooling. The first switch valve 81, the second switch valve 82, the sixth switch valve 86, and the seventh switch valve 87 are opened, the third switch valve 83, the fourth switch valve 84, and the fifth switch valve 85 are closed, and the second cooling module 4 is started. The second heat exchange medium from the second gas-liquid separator 41 is compressed into a high-temperature, high-pressure gas by the second compressor 42 and flows to the second condenser 43. After being cooled to a medium-temperature liquid by the second condenser 43, it is expanded into a low-temperature gas by the fourth electronic expansion valve 94 and flows to the second heat exchange channel of the heat exchanger 5 to exchange heat with the first heat exchange medium flowing through the first heat exchange channel before returning to the second cooling pipe 32 of the second heat exchange module 3. During this process, the temperature of the second heat exchange medium rises, while the temperature of the first heat exchange medium flowing through the first heat exchange channel decreases. Thus, when the first heat exchange medium returns to the second cooling pipe 32, it can fully exchange heat with the second heat exchange module 3, thereby reducing the temperature at the outlet of the second heat exchange module 3 and further improving the cooling effect of the charging gun.

[0102] (3) Battery pack cooling (i.e., the condition in which the vehicle thermal management system cools both the battery pack and the charging gun simultaneously)

[0103] When the temperature of the battery pack read by vehicle 200 is greater than the second preset temperature and less than the third preset temperature, i.e., T C <T<T maxWhen the battery pack needs cooling, the temperature at the outlet of the second heat exchange module 3 is read. If the temperature at the outlet of the second heat exchange module 3 is greater than the preset fourth temperature, the charging gun needs auxiliary cooling. The first switching valve 81, the second switching valve 82, the fifth switching valve 85, the sixth switching valve 86, and the seventh switching valve 87 are opened, the third switching valve 83 and the fourth switching valve 84 are closed, and the second cooling module 4 is started. The second heat exchange medium from the second gas-liquid separator 41 is compressed into a high-temperature, high-pressure gas by the second compressor 42 and flows to the second condenser 43. The liquid is cooled to a medium temperature by the second condenser 43. A portion of it is expanded into a low temperature gas by the fourth electronic expansion valve 94 and flows to the second heat exchange channel of the heat exchanger 5 to exchange heat with the first heat exchange medium flowing through the first heat exchange channel, and then returns to the second cooling pipe 32 of the second heat exchange module 3, thereby achieving auxiliary cooling of the charging gun. Another portion is expanded into a low temperature gas by the third expansion valve and flows to the third heat exchange module 6 to exchange heat with the third heat exchange module 6, and then returns to the second gas-liquid separator 41 to complete the cycle, thereby achieving cooling of the battery pack.

[0104] (4) Forced cooling of battery pack (i.e., the charging pile thermal management system only cools the battery pack)

[0105] When the temperature of the battery pack read by vehicle 200 is greater than or equal to the third preset temperature, i.e., T≥T max When the battery pack is deemed to require forced cooling, the battery pack disconnects from the vehicle's power supply, the onboard thermal management system stops operating, and the charging pile 100 stops charging the battery pack, allowing the charging pile's thermal management system to operate at full power. Subsequently, the third and fourth switching valves 83 and 84 are opened, while the first, second, and fifth switching valves 85, 86, and 87 are closed. This causes the first heat exchange medium cooled by the first condenser 13 to expand into a low-temperature gas via the second electronic expansion valve 92 and flow sequentially through the first cooling pipe 31 of the second heat exchange module 3. It then flows to the third heat exchange module 6, exchanges heat with it, and returns to the second cooling pipe 32 of the second heat exchange module 3. During this process, the first cooling module 1 only cools the battery pack, rapidly reducing its temperature and preventing thermal runaway.

[0106] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0107] Although embodiments of this disclosure have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system for charging piles, wherein, The charging pile thermal management system includes: The first heat exchange module (2) is adapted to be thermally connected to the charging module; The second heat exchange module (3) is adapted to be thermally connected to the charging gun; The first heat exchange module (2) and the second heat exchange module (3) are connected in parallel.

2. The charging pile thermal management system according to claim 1, wherein, The charging pile thermal management system further includes: a first cooling module (1), which is connected to the first heat exchange module (2) and the second heat exchange module (3) respectively. The first cooling module (1) is used to deliver a first heat exchange medium to the first heat exchange module (2) and the second heat exchange module (3) to achieve temperature regulation of the first heat exchange module (2) and the second heat exchange module (3).

3. The charging pile thermal management system according to claim 2, wherein, The charging pile thermal management system further includes: a first switching valve (81), which is located between the outlet of the first cooling module (1) and the inlet of the first heat exchange module (2), or the first switching valve (81) is located in the first heat exchange module (2), and the first switching valve (81) is used to cut off or restore the flow of the first heat exchange medium in the first heat exchange module (2).

4. The charging pile thermal management system according to claim 2, wherein, The charging pile thermal management system further includes: a second switching valve (82), which is located between the outlet of the first cooling module (1) and the inlet of the second heat exchange module (3), or the second switching valve (82) is located in the second heat exchange module (3), and the second switching valve (82) is used to cut off or restore the flow of the first heat exchange medium in the second heat exchange module (3).

5. The charging pile thermal management system according to any one of claims 2-4, wherein, The first refrigeration module (1) includes: a first gas-liquid separator (11), a first compressor (12), and a first condenser (13) connected in sequence; The outlet of the first condenser (13) is connected to the inlet of the first heat exchange module (2) and the inlet of the second heat exchange module (3), respectively. The inlet of the first gas-liquid separator (11) is connected to the outlet of the first heat exchange module (2) and the outlet of the second heat exchange module (3), respectively.

6. The charging pile thermal management system according to any one of claims 2-4, wherein, The charging pile thermal management system also includes a control valve, which is used to control the flow rate and / or velocity of the first heat exchange medium.

7. The charging pile thermal management system according to any one of claims 2-4, wherein, The charging pile thermal management system also includes sensors, which are used to acquire temperature and / or pressure information of the first heat exchange medium.

8. A charging pile (100), wherein, The charging pile (100) includes: a charging gun and a charging pile thermal management system as described in any one of claims 2-7; The charging gun is thermally connected to the second heat exchange module (3), and the charging gun is used to electrically connect to the vehicle (200).

9. The charging pile (100) according to claim 8, wherein, The charging pile (100) further includes a charging module, which is electrically connected to the charging gun and thermally connected to the first heat exchange module (2).

10. A combined thermal management system, wherein, The combined thermal management system includes: a charging pile thermal management system according to any one of claims 2-7, or a charging pile (100) according to claim 8 or 9; and an on-board thermal management system, wherein the on-board thermal management system is disposed in a vehicle (200).

11. The combined thermal management system according to claim 10, wherein, The vehicle thermal management system includes a second refrigeration module (4), which is connected to the second heat exchange module (3). The second refrigeration module (4) is used to deliver a second heat exchange medium to the second heat exchange module (3) to achieve temperature regulation of the second heat exchange module (3).

12. The combined thermal management system according to claim 11, wherein, The combined thermal management system further includes a heat exchanger (5), which is disposed in the vehicle 200; The heat exchanger (5) includes a first heat exchange channel and a second heat exchange channel that are arranged in parallel and thermally connected. The first heat exchange channel is connected to the second heat exchange module (3), and the second heat exchange channel is connected to the second refrigeration module (4) so ​​that the first heat exchange medium and the second heat exchange medium can exchange heat.

13. The combined thermal management system according to claim 12, wherein, The vehicle thermal management system further includes a third heat exchange module (6), which is connected to the second refrigeration module (4) and is arranged in parallel with the heat exchanger (5). The second refrigeration module (4) is used to deliver the second heat exchange medium to the third heat exchange module (6) to achieve temperature regulation of the third heat exchange module (6). The third heat exchange module (6) is used to thermally connect with the battery pack of the vehicle (200).

14. The combined thermal management system according to claim 13, wherein, The third heat exchange module (6) is connected to the second heat exchange module (4) so ​​that the first heat exchange medium flows to the third heat exchange module (6) to achieve temperature regulation of the third heat exchange module (6).

15. The combined thermal management system according to claim 13 or 14, wherein, The second heat exchange module (3) includes: a first cooling pipe (31) and a second cooling pipe (32); The first cooling pipe (31) includes a first pipe section (311), a second pipe section (312) and a third pipe section (313). The inlet of the first pipe section (311) is connected to the outlet of the first refrigeration module (1). The outlet of the first pipe section (311) is connected to the inlet of the second pipe section (312) and the inlet of the third pipe section (313). The outlet of the second pipe section (312) is connected to the inlet of the second heat exchange channel. The outlet of the third pipe section (313) is connected to the inlet of the third heat exchange module (6). The second cooling pipe (32) includes a fourth pipe section (321), a fifth pipe section (322), and a sixth pipe section (323). The outlet of the fourth pipe section (321) is connected to the inlet of the first refrigeration module (1). The inlet of the fourth pipe section (321) is connected to the outlet of the fifth pipe section (322) and the outlet of the sixth pipe section (323), respectively. The inlet of the fifth pipe section (322) is connected to the outlet of the second heat exchange channel. The inlet of the sixth pipe section (323) is connected to the outlet of the third heat exchange module (6).

16. The combined thermal management system according to claim 15, wherein, The charging pile thermal management system further includes a second switching valve (82), which is disposed on the second pipe section (312). The second switching valve (82) is used to cut off or restore the flow of the first heat exchange medium in the second pipe section (312).

17. The combined thermal management system according to claim 15, wherein, The charging pile thermal management system further includes a third switching valve (83), which is disposed on the third pipe section (313) and is used to cut off or restore the flow of the first heat exchange medium in the third pipe section (313).

18. The combined thermal management system according to claim 15, wherein, The charging pile thermal management system further includes a fourth switching valve (84), which is disposed on the sixth pipe section (323) and is used to cut off or restore the flow of the first heat exchange medium in the sixth pipe section (323).

19. The combined thermal management system according to any one of claims 13-18, wherein, The second refrigeration module (4) includes: a second gas-liquid separator (41), a second compressor (42), and a second condenser (43) connected in sequence; The outlet of the second condenser (43) is connected to the inlet of the second heat exchange channel and the inlet of the third heat exchange module (6), respectively. The inlet of the second gas-liquid separator (41) is connected to the outlet of the second heat exchange channel and the outlet of the third heat exchange module (6), respectively.

20. The combined thermal management system according to any one of claims 13-18, wherein, The vehicle thermal management system further includes a fifth switching valve (85), which is located between the outlet of the second refrigeration module (4) and the inlet of the third heat exchange module (6). The fifth switching valve (85) is used to cut off or restore the flow of the second heat exchange medium in the third heat exchange module 6.

21. The combined thermal management system according to any one of claims 12-18, wherein, The vehicle thermal management system further includes a sixth switching valve (86), which is located between the outlet of the second refrigeration module (4) and the inlet of the second heat exchange channel. The sixth switching valve (86) is used to cut off or restore the flow of the second heat exchange medium in the second heat exchange channel.

22. The combined thermal management system according to any one of claims 12-18, wherein, The vehicle thermal management system further includes a one-way valve (7), which is located between the outlet of the second heat exchange channel and the inlet of the second refrigeration module (4). The one-way valve (7) is used to guide the second heat exchange medium flowing out from the outlet of the second heat exchange channel to flow unidirectionally to the inlet of the second refrigeration module (4).

23. The combined thermal management system according to any one of claims 11-18, wherein, The vehicle thermal management system further includes a seventh switching valve (87), which is located at the inlet of the second refrigeration module (4) and is used to cut off or restore the flow of the second heat exchange medium toward the second refrigeration module (4).

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