Thermal management system and vehicle

Abstract

The invention provides a thermal management system and a vehicle, and belongs to the technical field of thermal management. The thermal management system comprises a water plate, a multi-way valve, a first water pump, a radiator, a second water pump, a heater, a third water pump and a refrigerator. Nine water channels are formed in the water plate and communicate with different connectors of the multi-way valve, and the first water pump, the heater, the third water pump and the refrigerator communicate with the different water channels correspondingly. The multi-way valve can control connection and disconnection between different water channels of the water plate, and heat management is conducted on the first heat management object, the second heat management object and the third heat management object. The first water pump, the second water pump, the third water pump, the heater and the refrigerator are integrated on the same water plate, the structure of the heat management system can be more compact, and arrangement of the heat management system is facilitated.

Description

Technical Field

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

[0002] Thermal management systems are used to heat or cool components in vehicles. As vehicle functions increase, the number of thermal management objects that thermal management systems need to serve also increases. As the number of thermal management objects increases, the number of components in thermal management systems also increases.

[0003] In the related art, the components in the thermal management system are dispersedly arranged in different positions of the vehicle. However, as the number of thermal management objects increases, the number of components in the thermal management system also increases, resulting in a larger space occupied by the thermal management system. Summary of the invention

[0004] The present disclosure provides a thermal management system and a vehicle, which can solve the technical problems existing in the related technologies. The technical solutions of the thermal management system and the vehicle are as follows.

[0005] In a first aspect, the present disclosure provides a thermal management system, the thermal management system comprising a water plate, a multi-way valve, a first water pump, a radiator, a second water pump, a heater, a third water pump and a refrigerator;

[0006] The multi-way valve, the first water pump, the second water pump, the heater and the third water pump are fixed to the water plate;

[0007] The water plate has a first water channel, a second water channel, a third water channel, a fourth water channel, a fifth water channel, a sixth water channel, a seventh water channel, an eighth water channel and a ninth water channel inside, the first water pump is connected to the first water channel, the second water pump is connected to the sixth water channel, the heater is connected to the fifth water channel, and the third water pump is connected to the ninth water channel;

[0008] The multi-way valve has a first interface, a second interface, a third interface, a fourth interface, a fifth interface, a sixth interface, a seventh interface and an eighth interface;

[0009] The first interface, the first water channel, the first thermal management object, the second water channel and the second interface are connected in sequence, and the third interface, the third water channel, the radiator, the fourth water channel and the fourth interface are connected in sequence;

[0010] The fifth interface, the fifth water channel, the second thermal management object, the sixth water channel and the sixth interface are connected in sequence;

[0011] The seventh interface, the seventh water channel, the third thermal management object, the ninth water channel, the refrigerator, the eighth water channel and the eighth interface are connected in sequence.

[0012] In a possible implementation, the thermal management system has a first cooling mode, a first heating mode, and a second cooling mode;

[0013] In the first cooling mode, the first water pump works, the second interface is connected to the third interface, and the fourth interface is connected to the first interface;

[0014] In the first heating mode, the second water pump works, and the fifth interface is connected to the sixth interface;

[0015] In the second cooling mode, the third water pump works, and the seventh interface is connected to the eighth interface.

[0016] In a possible implementation, the heat dissipation management system further includes a heat exchanger;

[0017] The heat exchanger includes a first heat exchange pipe and a second heat exchange pipe, wherein two ends of the first heat exchange pipe are respectively connected to the heater and the water inlet of the second water pump, and two ends of the second heat exchange pipe are respectively connected to the water outlet of the refrigerator and the seventh interface.

[0018] In a possible implementation, the thermal management system has a second heating mode;

[0019] In the second heating mode, the second water pump, the heater and the third water pump are working, the refrigerator is not working, and the seventh interface and the eighth interface are closed.

[0020] In a possible implementation manner, the first water pump, the second water pump and the heater are located on the same side of the water plate, and the multi-way valve, the heater and the third water pump are located on the same side of the water plate.

[0021] In a possible implementation manner, the heater is located between the first water pump and the second water pump.

[0022] In a possible implementation manner, the heat exchanger is located between the multi-way valve and the third water pump.

[0023] In a possible implementation, the thermal management system further includes an expansion kettle;

[0024] The multi-way valve further comprises a ninth interface, wherein the ninth interface is communicated with the water outlet of the expansion kettle, and the fifth interface is communicated with the air inlet of the expansion kettle.

[0025] In a possible implementation, the thermal management system further includes two water temperature sensors;

[0026] One of the water temperature sensors is located in the first water channel, and another water temperature sensor is located in the seventh water channel.

[0027] In a second aspect, the present disclosure further provides a vehicle, comprising a thermal management system as described in any one of the first aspects.

[0028] The technical solution provided by the present disclosure includes at least the following beneficial effects:

[0029] The present disclosure provides a vehicle, in which a first water pump, a second water pump, a third water pump, a heater and a refrigerator are integrated in a thermal management system. The multi-way valve can control the connection and disconnection between different water channels of the water plate, so that the first water pump can cool down the first thermal management object. The second water pump and the heater can heat the second thermal management object, and the third water pump and the refrigerator can cool down the third thermal management object. The integration of the first water pump, the second water pump, the third water pump and the heater on a water plate can make the structure of the thermal management object more compact, thereby making the volume of the thermal management system smaller, which is conducive to the layout of the thermal management system. It can also reduce the cost of the thermal management system (by about 10%) and reduce the weight of the thermal management system (by about 15%).

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description, are used to explain the principles of the present disclosure. In the drawings:

[0032] Figure 1 is a schematic diagram of a thermal management system shown in an embodiment of the present disclosure;

[0033] Figure 2 is a schematic diagram of a thermal management system shown in an embodiment of the present disclosure;

[0034] Figure 3 is a path diagram of a coolant in a thermal management system in a first cooling mode shown in an embodiment of the present disclosure;

[0035] Figure 4 is a path diagram of a coolant in a thermal management system in a first heating mode shown in an embodiment of the present disclosure;

[0036] Figure 5 is a path diagram of a coolant in a thermal management system in a second cooling mode shown in an embodiment of the present disclosure;

[0037] Figure 6 is a path diagram of a coolant in a thermal management system in a second heating mode shown in an embodiment of the present disclosure;

[0038] Figure 7 is a schematic diagram of a thermal management system shown in an embodiment of the present disclosure;

[0039] Figure 8 is a schematic diagram of a thermal management system shown in an embodiment of the present disclosure;

[0040] Fig. 9 is a schematic diagram of a thermal management system shown in an embodiment of the present disclosure;

[0041] Fig.10 It is a schematic diagram of the structure of a thermal management system shown in an embodiment of the present disclosure.

[0042] Legend:

[0043] 1. water plate, 11. first water channel, 12. second water channel, 13. third water channel, 14. third water channel (13), fourth water channel, 15. fifth water channel, 16. sixth water channel, 17. seventh water channel, 18. eighth water channel, 19. ninth water channel, 10. external interface;

[0044] 2. Multi-way valve, 21. first interface, 22. second interface, 23. third interface, 24. fourth interface, 25. fifth interface, 26. sixth interface, 27. seventh interface, 28. eighth interface, 29. ninth interface;

[0045] 3. The first water pump;

[0046] 4. Radiator;

[0047] 5. Second water pump;

[0048] 6. Heater;

[0049] 7. The third water pump;

[0050] 8. Refrigerator;

[0051] 9. heat exchanger, 91. first heat exchange pipe, 92. second heat exchange pipe;

[0052] 100. First thermal management object, 1001. CDU, 1002. F. Motor, 1003. R. Motor;

[0053] 200. Second thermal management object;

[0054] 300. third thermal management object;

[0055] 400, expansion kettle;

[0056] 500. Water temperature sensor.

[0057] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0059] The terms used in the embodiments of the present disclosure are only used to explain the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0060] Thermal management systems are used to heat or cool components in vehicles. As vehicle functions increase, the number of thermal management objects that thermal management systems need to serve also increases. As the number of thermal management objects increases, the number of components in thermal management systems also increases.

[0061] In the related art, the components in the thermal management system are dispersedly arranged in different positions of the vehicle. However, as the number of thermal management objects increases, the number of components in the thermal management system also increases, resulting in a larger space occupied by the thermal management system.

[0062] In view of the above technical problems, the present disclosure provides a thermal management system, such as Figure 1 and Figure 2As shown, the thermal management system includes a water plate 1, a multi-way valve 2, a first water pump 3, a radiator 4, a second water pump 5, a heater 6, a third water pump 7 and a refrigerator 8. The multi-way valve 2, the first water pump 3, the second water pump 5, the heater 6 and the third water pump 7 are fixed to the water plate 1. The water plate 1 has a first water channel 11, a second water channel 12, a third water channel 13, a fourth water channel 14, a fifth water channel 15, a sixth water channel 16, a seventh water channel 17, an eighth water channel 18 and a ninth water channel 19. The first water pump 3 is connected to the first water channel 11, the second water pump 5 is connected to the sixth water channel 16, the heater 6 is connected to the fifth water channel 15, and the third water pump 7 is connected to the ninth water channel 19. The multi-way valve 2 has a first interface 21, a second interface 22, a third interface 23, a fourth interface 24, a fifth interface 25, a sixth interface 26, a seventh interface 27 and an eighth interface 28. The first interface 21, the first water channel 11, the first thermal management object 100, the second water channel 12 and the second interface 22 are connected in sequence, and the third interface 23, the third water channel 13, the radiator 4, the fourth water channel 14 and the fourth interface 24 are connected in sequence. The fifth interface 25, the fifth water channel 15, the second thermal management object 200, the sixth water channel 16 and the sixth interface 26 are connected in sequence. The seventh interface 27, the seventh water channel 17, the third thermal management object 300, the ninth water channel 19, the refrigerator 8, the eighth water channel 18 and the eighth interface 28 are connected in sequence.

[0063] There is cooling liquid in each water channel of the water plate 1 .

[0064] The heater 6 may be a high voltage electric heater.

[0065] The first water channel 11 to the ninth water channel 19 have multiple water channels with external interfaces 10 (such as Figure 2 The external interface 10 is connected to various thermal management objects and components outside the water plate 1 through a connecting pipe. The specific positions of the external interfaces 10 on the water plate 1 can be arranged according to the actual positions of the first thermal management object 100, the second thermal management object 200, and the third thermal management object 300 radiator 4 in the vehicle, so that the length of the connecting pipe is shorter.

[0066] The technical solution provided by the embodiment of the present disclosure integrates the first water pump 3, the second water pump 5, the third water pump 7, the heater 6 and the refrigerator 8 in the thermal management system. The multi-way valve 2 can control the connection and disconnection between different water channels of the water plate 1, so that the first water pump 3 can cool the first thermal management object 100. The second water pump 5 and the heater 6 can heat the second thermal management object 200, and the third water pump 7 and the refrigerator 8 can cool the third thermal management object 300. Therefore, the thermal management system can perform thermal management on multiple thermal management objects. And the first water pump 3, the second water pump 5, the third water pump 7 and the heater 6 are integrated on the same water plate 1, which can make the structure of the thermal management system more compact. As a result, the volume of the thermal management system is small, which is conducive to the layout of the thermal management system in the vehicle. And it can reduce the cost of the thermal management system (by about 10%), and can also reduce the weight of the thermal management system (by about 15%).

[0067] In some examples, the thermal management system has a first cooling mode, a first heating mode, and a second cooling mode.

[0068] In the first cooling mode, if Figure 3 As shown, the first water pump 3 works. The coolant flows through the first thermal management object 100, so that the coolant takes away the heat of the first thermal management object 100, and the temperature of the coolant increases. The second interface 22 is connected to the third interface 23, so that the coolant with a higher temperature flows to the radiator 4, and the temperature of the coolant decreases in the radiator 4. The fourth interface 24 is connected to the first interface 21, so that the coolant with a lowered temperature flows back to the first water pump 3 and flows through the first thermal management object 100 again, thereby forming a cooling cycle for the first thermal management object 100.

[0069] In the first heating mode, if Figure 4 As shown, the second water pump 5 is working, and the fifth interface 25 is connected to the sixth interface 26. The coolant can flow to the heater 6 through the multi-way valve 2, and the heater 6 increases the temperature of the coolant. The coolant with the increased temperature flows to the second thermal management object 200, thereby heating the second thermal management object 200. The coolant has a lower temperature after heat exchange with the second thermal management object 200, and then flows through the heater 6 again, and flows to the second thermal management object 200 again after the temperature is increased, thereby forming a heating cycle for the second thermal management object 200.

[0070] In the second cooling mode, if Figure 5As shown, the third water pump 7 is working, and the seventh interface 27 is connected to the eighth interface 28. The temperature of the coolant decreases after flowing through the refrigerator 8, and then flows to the third thermal management object 300 through the seventh interface 27 and the eighth interface 28, thereby cooling the third thermal management object 300. The temperature of the coolant increases after heat exchange with the third thermal management object 300, and then flows through the refrigerator 8 again, and flows through the third thermal management object 300 again after the temperature decreases, thereby forming a cooling cycle for the third thermal management object 300.

[0071] In some examples, the heat dissipation management system further includes a heat exchanger 9. Figure 6 As shown, the heat exchanger 9 includes a first heat exchange pipe 91 and a second heat exchange pipe 92. Both ends of the first heat exchange pipe 91 are respectively connected to the water inlet of the heater 6 and the second water pump 5. One end of the second heat exchange pipe 92 is connected to the water outlet of the refrigerator 8 through the eighth water channel 18, and the other end is connected to the seventh interface 27 through the seventh water channel 17. When the coolant flowing out of the heater 6 flows to the first heat exchange pipe 91, and the coolant in the refrigerator 8 flows to the second heat exchange pipe 92, the first heat exchange pipe 91 and the second heat exchange pipe 92 can perform heat exchange.

[0072] In some examples, the thermal management system has a second heating mode. In the second heating mode, the second water pump 5, the heater 6 and the third water pump 7 are working, and the fifth interface 25 and the sixth interface 26 are connected. Figure 6 As shown, the coolant flowing out of the second water pump 5 increases in temperature after passing through the multi-way valve 2 and the heater 6, and then enters the first heat exchange pipe 91 (as shown in FIG. Figure 6 The coolant flowing out of the third water pump 7 flows through the ninth water channel 19 and the eighth water channel 18 in sequence, and then enters the second heat exchange pipe 92 (as shown in FIG. Figure 6 After the first heat exchange pipe 91 and the second heat exchange pipe 92 perform heat exchange, the temperature of the coolant in the second heat exchange pipe 92 increases, and then the coolant flows to the third heat management object 300 (such as Figure 6 The third heat-management object 300 is heated.

[0073] It is understandable that, since the third thermal management object is heated at this time, the refrigerator 8 does not work, and the seventh interface 27 and the eighth interface 28 are closed, so as to prevent the cooling water in the eighth water channel 18 from directly flowing to the third thermal management object 300 through the seventh water channel 17. In this way, more coolant can be heated in the second heat exchange pipe 92, thereby improving the heating effect of the third thermal management object 300.

[0074] In some examples, such as Figure 7 and Figure 8As shown, the first water pump 3, the second water pump 5 and the heater 6 are located on the same side of the water plate 1, and the multi-way valve 2, the heat exchanger 9 and the third water pump 7 are located on the other side of the water plate 1. In this way, the components in the thermal management system can be evenly distributed on both sides of the water plate 1, which facilitates the arrangement of various components in the thermal management system and avoids excessive concentration of multiple components.

[0075] In some examples, such as Figure 7 As shown, the heater 6 is located between the first water pump 3 and the second water pump 5 .

[0076] In some examples, such as Figure 8 As shown, the heat exchanger 9 is located between the multi-way valve 2 and the third water pump 7 .

[0077] In some examples, such as Figure 8 and Fig. 9 As shown, the thermal management system further includes an expansion kettle 400. The multi-way valve 2 further includes a ninth interface 29, which is connected to the water outlet of the expansion kettle 400. The expansion kettle 400 can replenish the cooling liquid to the multi-way valve 2 through the ninth interface 29. It can be understood that any two interfaces in the multi-way valve 2 can be connected, so when any device or water channel needs to be replenished with cooling liquid, it is only necessary to connect the corresponding interface on the multi-way valve 2 to the ninth interface 29.

[0078] When the thermal management system is in the first cooling mode, the ninth interface 29 can be connected to the first interface 21 , so that the coolant flowing through the first water pump 3 increases.

[0079] When the thermal management system is in the first heating mode, the ninth interface 29 may be connected to the fifth interface 25 , so that the amount of coolant flowing through the heater 6 and the second thermal management object 200 increases.

[0080] When the thermal management system is in the second cooling mode, the ninth interface 29 can be connected to the seventh interface 27, so that more coolant flows through the third thermal management object 300. It can be understood that when the coolant in the water plate 1 is sufficient, the ninth interface 29 is closed.

[0081] When the thermal management system is in the second heating mode, the ninth interface 29 may be connected to the fifth interface 25 , so that the coolant flowing through the heater 6 and the third thermal management object 300 increases.

[0082] The fifth interface 25 of the multi-way valve 2 is connected to the air inlet of the expansion kettle 400. It is understandable that any two interfaces of the multi-way valve 2 can be connected, so when any water channel needs to discharge gas, it is only necessary to connect the corresponding interface on the multi-way valve 2 to the fifth interface 25.

[0083] When the thermal management system is in the first cooling mode, the fourth interface 24 and the fifth interface 25 may be connected, so that the gas in the fourth water channel 14 enters the expansion kettle 400 .

[0084] When the thermal management system is in the second cooling mode, the fifth interface 25 can be connected to the seventh interface 27 , so that the gas in the seventh water channel 17 and the eighth water channel 18 enters the expansion kettle 400 .

[0085] In this way, the gas in the water plate 1 can be reduced to prevent the gas from affecting the flow of liquid in each water channel, which is beneficial to improving the thermal management effect of the thermal management system on each thermal management object.

[0086] Exemplarily, the expansion kettle 400 is located at the top of the water plate 1. On the one hand, it is beneficial for the expansion kettle 400 to replenish the water channel of the water plate 1. On the other hand, it prevents the coolant in the water plate 1 from entering the expansion kettle through the air inlet of the expansion kettle 400.

[0087] In some examples, such as Fig.10 As shown, the thermal management system further includes two water temperature sensors 500 , and the water temperature sensors 500 are fixed to the water plate 1 .

[0088] One of the water temperature sensors 500 is located in the seventh water channel 17, and the water temperature sensor 500 is used to detect the water temperature in the seventh water channel 17. In the second heating mode, if the water temperature sensor 500 measures that the water temperature in the seventh water channel 17 is high, in order to avoid the water temperature being too high and damaging the third thermal management object 300, the heater 6 can be turned off, or the speed of the third water pump 7 can be increased. In this way, the water temperature in the second heat exchange pipe 92 is prevented from being too high, and the water temperature in the seventh water channel 17 is prevented from being too high.

[0089] Another water temperature sensor 500 is located in the first water channel 11, and is used to detect the water temperature in the first water channel 11. When the water temperature in the first water channel 11 is detected to be low, it indicates that the temperature of the first thermal management object 100 is low, and the first thermal management object 100 does not need to be cooled down, and the first water pump 3 can be turned off at this time.

[0090] The embodiment of the present disclosure also provides a vehicle, which includes the above-mentioned thermal management system.

[0091] The present disclosure does not specifically limit the type of vehicle, for example, a sedan, a bus, a truck, a sport utility vehicle (SUV), etc.

[0092] like Fig.10As shown, the first thermal management object 100 in the thermal management system may include a CDU (Conversion & Distribution Unit, an integrated unit of a DCDC (Direct Current to Direct Current) converter, an OBC (On Board Charger), and a high-voltage junction box) 1001, an F.Motor (Front motor) 1002, and an R.Motor (Rear motor) 1003.

[0093] The second heat management object 200 may be an indoor heater. When the second heat management object 200 is heated, the second heat management object 200 can heat the interior of the vehicle.

[0094] The third thermal management object 300 may include Batt (Battery), and the thermal management system can heat or cool the third thermal management object 300 so that the third thermal management object 300 can normally supply power to the vehicle.

[0095] The technical solution provided by the embodiment of the present disclosure is that the thermal management system in the vehicle is small in size, so it occupies less space in the vehicle, which is conducive to the arrangement of other components in the vehicle. In addition, the number of components of the thermal management system is small, which can reduce the total assembly time of the vehicle (reduced by about 60 seconds). In addition, since the cost of the thermal management system is low, the overall cost of the vehicle can also be reduced.

[0096] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A thermal management system, characterized in that: The thermal management system comprises a water plate (1), a multi-way valve (2), a first water pump (3), a radiator (4), a second water pump (5), a heater (6), a third water pump (7) and a refrigerator (8); The multi-way valve (2), the first water pump (3), the second water pump (5), the heater (6) and the third water pump (7) are fixed to the water plate (1); The water plate (1) has a first water channel (11), a second water channel (12), a third water channel (13), a fourth water channel (14), a fifth water channel (15), a sixth water channel (16), a seventh water channel (17), an eighth water channel (18) and a ninth water channel (19) inside, the first water pump (3) is connected to the first water channel (11), the second water pump (5) is connected to the sixth water channel (16), the heater (6) is connected to the fifth water channel (15), and the third water pump (7) is connected to the ninth water channel (19); The multi-way valve (2) has a first interface (21), a second interface (22), a third interface (23), a fourth interface (24), a fifth interface (25), a sixth interface (26), a seventh interface (27) and an eighth interface (28); The first interface (21), the first water channel (11), the first thermal management object (100), the second water channel (12) and the second interface (22) are connected in sequence, and the third interface (23), the third water channel (13), the radiator (4), the fourth water channel (14) and the fourth interface (24) are connected in sequence; The fifth interface (25), the fifth water channel (15), the second thermal management object (200), the sixth water channel (16) and the sixth interface (26) are connected in sequence; The seventh interface (27), the seventh water channel (17), the third thermal management object (300), the ninth water channel (19), the refrigerator (8), the eighth water channel (18) and the eighth interface (28) are connected in sequence.

2. The thermal management system according to claim 1, characterized in that: The thermal management system has a first cooling mode, a first heating mode, and a second cooling mode; In the first cooling mode, the first water pump (3) is working, the second interface (22) is connected to the third interface (23), and the fourth interface (24) is connected to the first interface (21); In the first heating mode, the second water pump (5) works, and the fifth interface (25) is connected to the sixth interface (26); In the second cooling mode, the third water pump (7) is in operation, and the seventh interface (27) is connected to the eighth interface (28).

3. The thermal management system according to claim 1, characterized in that: The heat dissipation management system further comprises a heat exchanger (9); The heat exchanger (9) comprises a first heat exchange pipe (91) and a second heat exchange pipe (92), wherein the two ends of the first heat exchange pipe (91) are respectively connected to the heater (6) and the water inlet of the second water pump (5), and the two ends of the second heat exchange pipe (92) are respectively connected to the water outlet of the refrigerator (8) and the seventh interface (27).

4. The thermal management system according to claim 3, characterized in that: The thermal management system has a second heating mode; In the second heating mode, the second water pump (5), the heater (6) and the third water pump (7) are working, the refrigerator (8) is not working, the fifth interface (25) and the sixth interface (26) are connected, and the seventh interface (27) and the eighth interface (28) are closed.

5. The thermal management system according to claim 3, characterized in that: The first water pump (3), the second water pump (5) and the heater (6) are fixed to one side of the water plate (1); The multi-way valve (2), the heat exchanger (9) and the third water pump (7) are fixed to the other side of the water plate (1).

6. The thermal management system according to claim 5, characterized in that: The heater (6) is located between the first water pump (3) and the second water pump (5).

7. The thermal management system according to claim 5, characterized in that: The heat exchanger (9) is located between the multi-way valve (2) and the third water pump (7).

8. The thermal management system according to any one of claims 1 to 7, characterized in that: The thermal management system further comprises an expansion kettle (400); The multi-way valve (2) further comprises a ninth interface (29), wherein the ninth interface (29) is in communication with the water outlet of the expansion kettle (400), and the fifth interface (25) is in communication with the air inlet of the expansion kettle (400).

9. The thermal management system according to any one of claims 1 to 7, characterized in that: The thermal management system further comprises two water temperature sensors (500); One of the water temperature sensors (500) is located in the first water channel (11), and another water temperature sensor is located in the seventh water channel (17).

10. A vehicle, characterized in that: The vehicle comprises a thermal management system as claimed in any one of claims 1-9.

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