Thermal management system and vehicle

Abstract

The application discloses a kind of heat management system and vehicle, heat management system includes: air conditioning system;First control valve, high-pressure heat exchange circuit, battery heat exchange circuit, radiator circuit and heat exchanger circuit are communicated on first control valve, first control valve selectively communicates one or more in high-pressure heat exchange circuit, battery heat exchange circuit, radiator circuit, heat exchanger circuit;Air conditioning system and heat exchanger circuit and heating circuit heat exchange;Multi-pass pipe, at least two ends of multi-pass pipe and first control valve are communicated, and again one end of multi-pass pipe and battery heat exchange circuit are communicated;Condenser, one end of condenser selectively and again one end of multi-pass pipe are communicated, and the other end of condenser and first control valve are communicated;Wherein, by first control valve and multi-pass pipe, multiple circuits are communicated, reduce flow resistance under each working mode, improve energy utilization, optimize the energy utilization efficiency of heat pump or heating circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle thermal management, in particular to a thermal management system and a vehicle. BACKGROUND

[0002] With the rapid development of China's pure electric vehicle industry, the integration of the vehicle control system is getting higher and higher, the 800V high-voltage system is more efficient and charges faster, and the thermal management system is also progressing towards high efficiency and energy saving. The heat pump system has been widely used, the motor waste heat has been reasonably utilized, the battery cooling and heating methods have been diversified, and finally the architecture of the thermal management system of each vehicle model presents complexity and diversification.

[0003] Due to different properties and design requirements, each system and its parts of the pure electric vehicle have different optimal temperature ranges, so external auxiliary means is needed to maintain each part in a suitable temperature range to ensure the normal, stable and efficient operation of the parts and the comfort of the passengers in the passenger compartment. In the pure electric vehicle, since the battery generates a large amount of heat when working, and the performance and service life of the battery are closely related to the temperature, therefore, an efficient and intelligent thermal management architecture is crucial. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a thermal management system, which connects multiple circuits through a first control valve and a multi-pass pipe, reduces the flow resistance in each working mode, improves the energy utilization rate, and optimizes the energy utilization efficiency of the heat pump or heating circuit.

[0005] The present application further provides a vehicle.

[0006] According to the thermal management system of the first aspect of the present application, the air conditioning system, the first control valve, the high-pressure heat exchange circuit, the battery heat exchange circuit, the radiator circuit and the heat exchanger circuit are connected, the first control valve selectively connects one or more of the high-pressure heat exchange circuit, the battery heat exchange circuit, the radiator circuit and the heat exchanger circuit, the air conditioning system exchanges heat with the heat exchanger circuit and the heating circuit, at least two ends of the multi-pass pipe are connected with the first control valve, and the other end of the multi-pass pipe is connected with the battery heat exchange circuit. One end of the condenser is selectively connected with the other end of the multi-pass pipe, and the other end of the condenser is connected with the first control valve.

[0007] According to the thermal management system of the present application, multiple circuits are connected through a first control valve and a multi-pass pipe, the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of the heat pump or heating circuit is optimized.

[0008] According to some embodiments of the present application, the multi-port pipe comprises a first port and a second port; and the thermal management system further comprises a first branch and a second branch, the first branch is connected between the first port and one port of the first control valve, one end of the second branch is communicated with the second port, and the other end of the second branch is communicated with the battery heat exchange circuit.

[0009] According to some embodiments of the present application, the thermal management system further comprises a third branch and a fourth branch, one end of the third branch is communicated with the third port, and the other end of the third branch is selectively communicated with one end of the condenser, one end of the fourth branch is communicated with the fourth port, and the other end of the fourth branch is communicated with the first control valve.

[0010] According to some embodiments of the present application, the fourth branch is provided with a first check valve and a second check valve, one end of the first check valve is communicated with the fourth port, and the other end of the first check valve is communicated with one end of the second check valve, and the other end of the second check valve is communicated with the first control valve.

[0011] According to some embodiments of the present application, the thermal management system further comprises a fifth branch, one end of the fifth branch is communicated with the first control valve, and the other end of the fifth branch is communicated with one end of the second check valve.

[0012] According to some embodiments of the present application, the thermal management system further comprises a sixth branch, one end of the sixth branch is communicated with the first control valve, and the other end of the sixth branch is communicated with one end of the heat exchanger circuit.

[0013] According to some embodiments of the present application, the thermal management system further comprises a first stop valve, one end of the first stop valve is communicated with one end of the battery heat exchange circuit, and the other end of the first stop valve is communicated with one end of the heat exchanger circuit.

[0014] According to some embodiments of the present application, the heating circuit comprises a condenser, an electric heater and a warm air core, the electric heater and the condenser are connected in series, one end of the condenser is selectively communicated with the multi-port pipe and one end of the warm air core, the other end of the condenser is communicated with one end of the electric heater, and the other end of the electric heater is communicated with the other end of the warm air core and the first control valve.

[0015] According to some embodiments of the present application, the thermal management system further comprises a second control valve, one end of the second control valve is communicated with one end of the condenser, the other end of the second control valve is communicated with the multi-port pipe, and the further end of the second control valve is communicated with one end of the warm air core.

[0016] According to some embodiments of the present application, the heat exchanger circuit comprises a heat exchanger, one end of the heat exchanger being communicated with the first control valve and one end of the battery heat exchange circuit, the other end of the heat exchanger being communicated with the first control valve, and the air conditioning system being communicated with the heat exchanger.

[0017] According to some embodiments of the present application, the heating circuit comprises a condenser, an electric heater and a warm air core, the electric heater and the warm air core being connected in series with each other; and the air conditioning system comprises a compressor and an evaporator, the compressor, the evaporator and the condenser being connected in series with each other; wherein the heat exchanger and the evaporator are connected in parallel with each other and in series with the condenser.

[0018] According to some embodiments of the present application, the radiator circuit comprises a radiator, one end of the radiator being communicated with the first control valve and one end of the high-pressure heat exchange circuit, the other end of the radiator being communicated with the first control valve; and the high-pressure heat exchange circuit comprises a motor, an electric control and a first water pump, the motor, the electric control and the first water pump being connected in series with each other; the battery heat exchange circuit comprises a second water pump and a battery pack, the second water pump and the battery pack being connected in series with each other, one end of the second water pump being communicated with the first control valve.

[0019] The vehicle according to the second aspect of the embodiments of the present application comprises the thermal management system.

[0020] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0022] Figure 1 is a structural schematic diagram of a thermal management system according to an embodiment of the present application;

[0023] Figure 2 is a circuit schematic diagram of a first mode of a thermal management system according to an embodiment of the present application;

[0024] Figure 3 is a circuit schematic diagram of a second mode of a thermal management system according to an embodiment of the present application;

[0025] Figure 4 is a circuit schematic diagram of a third mode of a thermal management system according to an embodiment of the present application;

[0026] Figure 5 is a circuit schematic diagram of a fourth mode of a thermal management system according to an embodiment of the present application;

[0027] Figure 6 is a circuit diagram of a fifth mode of a thermal management system according to an embodiment of the present invention;

[0028] Figure 7 FIG. 4 is a circuit diagram of a sixth mode of a thermal management system according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] 100. Thermal management system;

[0031] 10. High-pressure heat exchange circuit; 11. Motor; 12. Electronic control; 13. First water pump;

[0032] 20. Battery heat exchange circuit; 21. Battery pack; 22. Second water pump;

[0033] 30. Radiator circuit; 31. Radiator;

[0034] 40. Heat exchanger circuit; 41. Heat exchanger;

[0035] 50. Heating circuit; 51. Warm air core; 52. Electric heater; 53. Third water pump;

[0036] 61. First control valve; 62. Second control valve; 63. Multi-way pipe; 64. First one-way valve; 65. Second one-way valve; 66. First stop valve;

[0037] 71. Condenser; 72. Evaporator; 73. Compressor;

[0038] 81. Overflow tank; 82. Cross-connect pipe; 83. First branch; 84. Second branch; 85. Third branch; 86. Fourth branch; 87. Fifth branch; 88. Sixth branch; DETAILED DESCRIPTION

[0039] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0040] Reference below Figures 1-7 A thermal management system 100 according to an embodiment of the present invention is described, and the present invention also provides a vehicle.

[0041] The thermal management system 100 includes a first control valve 61, which is connected to the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchange circuit 40. The first control valve 61 selectively connects one or more of these circuits. The first control valve 61 includes multiple valve ports, each of which is connected to the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchange circuit 40. By controlling the connection of these multiple valve ports, one or more of these circuits can be selectively connected.

[0042] Thermal management system 100 also includes an air conditioning system, which exchanges heat with heat exchanger circuit 40 and heating circuit 50. Thermal management system 100 also includes heating circuit 50, which can be used to heat the passenger compartment. The air conditioning system and heating circuit 50 exchange heat through condenser 71, where the refrigerant and coolant exchange heat to achieve heat exchange between the air conditioning system and heating circuit 50.

[0043] For example, Figure 2 and Figure 3 As shown, the first control valve 61 can connect the radiator circuit 30 and the high-pressure heat exchange circuit 10, so that the radiator circuit 30 and the high-pressure heat exchange circuit 10 form a closed circuit, and the heat generated by the high-pressure components in the high-pressure heat exchange circuit 10 is brought to the radiator circuit 30 through the coolant, thereby realizing the heat dissipation of the high-pressure components.

[0044] As well as Figure 4 and Figure 5 As shown, the first control valve 61 can connect the two ends of the battery heat exchange circuit 20, forming a closed loop in the battery heat exchange circuit 20 to achieve uniform temperature of the battery pack 21.

[0045] For example, Figure 3 As shown, the first control valve 61 can connect the high-pressure heat exchange circuit 10 and the battery heat exchange circuit 20 in parallel and then connect them in series with the radiator 31. After the high-pressure heat exchange circuit 10 and the battery heat exchange circuit 20 are connected in parallel and then connected in series with the radiator circuit 30, the coolant flows between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, thereby transporting the heat generated by the battery pack 21 and the high-voltage components to the radiator 31 and dissipating it to the outside world, thereby achieving heat dissipation for the battery pack 21 and the high-voltage components.

[0046] For example, Figure 4As shown, the first control valve 61 can connect the battery heat exchange circuit 20, the high-pressure heat exchange circuit 10, and the heat exchanger circuit 40. The battery heat exchange circuit 20, the high-pressure heat exchange circuit 10, and the heat exchanger circuit 40 are connected in series to form a closed loop. The heat exchanger circuit 40 exchanges heat with the air conditioning system. The refrigerant of the air conditioning system absorbs the waste heat generated by the high-voltage components. When the condenser 71 is connected in series with the battery heat exchange circuit 20, this heat can be used to heat the battery pack 21.

[0047] like Figure 2 As shown, the first control valve 61 can be connected in series with the heat exchanger circuit 40 and the battery heat exchange circuit 20. The heat exchanger circuit 40 can absorb heat from the battery pack 21 and transfer the heat to the air conditioning system for heating the passenger compartment.

[0048] like Figure 2 As shown, the first control valve 61 connects the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40. The coolant transfers heat generated by the high-pressure components to the heat exchanger circuit 40, recovering the waste heat from the high-pressure components and using it for defrosting in cold environments. Furthermore, because the heat exchanger circuit 40 is connected to the air conditioning system, the heat in the heat exchanger circuit 40 can be transferred to the condenser 71 via the refrigerant, thereby heating the passenger compartment.

[0049] The first control valve 61 is used to form at least one closed loop between the radiator 31, the heat exchanger 41, the battery heat exchange loop 20 and the high-pressure heat exchange loop 10. That is, the heat generated by the high-pressure heat exchange loop 10 or the battery heat exchange loop 20 can be transported to the remaining loops or devices, so that the heat generated by the thermal management system 100 can be effectively utilized.

[0050] The thermal management system 100 also includes a multi-way pipe 63. At least two ends of the multi-way pipe 63 are connected to the first control valve 61, and another end of the multi-way pipe 63 is connected to the battery heat exchange circuit 20. At least two pipe ports of the multi-way pipe 63 are connected to two valve ports of the first control valve 61, and one pipe port of the multi-way pipe 63 is connected to the battery heat exchange circuit 20.

[0051] The thermal management system 100 also includes a condenser 71, one end of which selectively connects to the other end of the multi-way tube 63 and one end of the heating circuit 50, and the other end of the condenser 71 connects to the first control valve 61 and the other end of the heating circuit 50. Specifically, when one end of the condenser 71 connects to the other end of the multi-way tube 63, one valve port of the first control valve 61 or one end of the battery heat exchange circuit 20 connects to one end of the condenser 71, and the other end of the condenser 71 connects to the other valve port of the first control valve 61. This allows the battery heat exchange circuit 20 and the condenser 71 to be connected in series, allowing waste heat from the motor 11 or ambient heat to be used to heat the battery pack 21; or the radiator circuit 30 and the condenser 71 to be connected in series, allowing the condenser 71 to be cooled, thereby improving the efficiency of the air conditioning system.

[0052] The first control valve 61 includes: a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, an eighth valve port and a ninth valve port. The first valve port is Figures 1-7 The second valve port is Figures 1-7 The "b" in the third valve port is Figures 1-7 The "c" in the fourth valve port is Figures 1-7 The "d" in the middle is the fifth valve port. Figures 1-7 The "e" in the sixth valve port is Figures 1-7 The "f" in the figure indicates the seventh valve port. Figures 1-7 The "g" in the eighth valve port is Figures 1-7 The "h" in the ninth valve port is Figures 1-7 The "i" in .

[0053] Specifically, the first valve port is connected to one end of the radiator 31, the second valve port is connected to the other end of the heat exchanger 41, the third valve port is connected to one end of the battery heat exchange circuit 20, the fourth valve port is connected to the other end of the battery heat exchange circuit 20, and the fifth valve port is connected to one pipe port of the multi-way pipe 63.

[0054] like Figure 1As shown, the multi-pass pipe 63 comprises a first pipe opening and a second pipe opening, and the thermal management system 100 further comprises a first branch 83 and a second branch 84, the first branch 83 being connected between the first pipe opening and one valve opening of the first control valve 61, one end of the second branch 84 being communicated with the second pipe opening, and the other end of the second branch 84 being communicated with the battery heat exchange circuit 20. That is, one end of the first branch 83 is communicated with the first pipe opening, and the other end of the first branch 83 is communicated with the fifth valve opening, the second branch 84 is connected between the second pipe opening and the battery heat exchange circuit 20, the first branch 83 can communicate the fifth valve opening and the first pipe opening, so as to realize the series connection of the condenser 71 and the radiator circuit 30, and realize the cooling of the condenser 71; the second branch 84 can communicate one end of the battery heat exchange circuit 20 and the second pipe opening, so that the first control valve 61 can series connect the battery heat exchange circuit 20 and the high-pressure heat exchange circuit 10, and heat the battery pack 21 by using the waste heat of the motor 11.

[0055] In combination Figure 1 and Figure 2 As shown, the thermal management system 100 further comprises a third branch 85 and a fourth branch 86, one end of the third branch 85 being communicated with the third pipe opening and the other end being selectively communicated with one end of the condenser 71, and one end of the fourth branch 86 being communicated with the fourth pipe opening and the other end being communicated with the first control valve 61. Specifically, the fourth branch 86 can communicate one end of the battery heat exchange circuit 20 and the first control valve 61, so that the first control valve 61 can communicate two ends of the battery heat exchange circuit 20, so as to realize the temperature equalization of the battery pack 21; or the third branch 85 can communicate the third pipe opening and one end of the condenser 71, so as to realize the series connection of the condenser 71 and the radiator circuit 30, and realize the cooling of the condenser 71.

[0056] Further, the fourth branch 86 is provided with a first one-way valve 64 and a second one-way valve 65, one end of the first one-way valve 64 being communicated with the fourth pipe opening and the other end being communicated with one end of the second one-way valve 65, and the other end of the second one-way valve 65 being communicated with the first control valve 61. According to Figure 1 As shown, the sixth valve opening is communicated with one end of the second one-way valve 65, the seventh valve opening is communicated with the other end of the second one-way valve 65 and the other end of the condenser 71, the eighth valve opening is communicated with the other end of the radiator 31, and the ninth valve opening is communicated with the other end of the high-pressure heat exchange circuit 10.

[0057] The thermal management system 100 further comprises a fifth branch 87, one end of the fifth branch 87 being communicated with the first control valve 61, and the other end of the fifth branch 87 being communicated with the other end of the first one-way valve 64 and one end of the second one-way valve 65. One end of the fifth branch 87 is communicated with the sixth valve opening, and the other end of the fifth branch 87 is communicated with one end of the second one-way valve 65.

[0058] As Figure 2 and Figure 3As shown, the fifth branch 87 connects the sixth valve port and one end of the second check valve 65, the first control valve 61 can connect the second valve port and the sixth valve port, the other end of the second check valve 65 connects the seventh valve port, and the first control valve 61 connects the seventh valve port and the fourth valve port, which connects the battery heat exchange circuit 20. If the stop valve 66 is opened, the battery heat exchange circuit 20 and the heat exchanger circuit 40 are connected in series, and the battery pack 21 is actively cooled.

[0059] As shown, the fifth branch 87 connects the sixth valve port and one end of the second check valve 65, the first control valve 61 can connect the second valve port and the sixth valve port, the other end of the second check valve 65 connects the seventh valve port, and the first control valve 61 connects the seventh valve port and the fourth valve port, which connects the battery heat exchange circuit 20. If the stop valve 66 is opened, the battery heat exchange circuit 20 and the heat exchanger circuit 40 are connected in series, and the battery pack 21 is actively cooled. Figure 6 As shown, the fifth branch 87 connects the sixth valve port and one end of the second check valve 65, the first control valve 61 can connect the second valve port and the sixth valve port, the other end of the second check valve 65 connects the seventh valve port, and the first control valve 61 connects the seventh valve port and the fourth valve port, which connects the battery heat exchange circuit 20. If the stop valve 66 is opened, the battery heat exchange circuit 20 and the heat exchanger circuit 40 are connected in series, and the battery pack 21 is actively cooled.

[0060] Figure 4 The heat management system 100 further comprises a first stop valve 66, one end of the first stop valve 66 connects one end of the battery heat exchange circuit 20, and the other end of the first stop valve 66 connects one end of the heat exchanger circuit 40. Specifically, the heat management system 100 further comprises a sixth branch 88, one end of the sixth branch 88 connects the first control valve 61, and the other end of the sixth branch 88 connects one end of the heat exchanger circuit 40. The sixth branch 88 connects the third valve port and one end of the heat exchanger circuit 40. If the first control valve 61 connects the second valve port and the eighth valve port and connects the third valve port and the ninth valve port (as shown), the heat exchanger circuit 40, the high-pressure heat exchange circuit 10, and the radiator circuit 30 are connected in series, the heat exchanger 41 can absorb the heat of the motor 11 and the environmental heat, and can be used for passenger cabin heating or heating the battery.

[0061] The heating circuit 50 comprises a condenser 71, an electric heater 52, and a warm air core 51. The electric heater 52 and the condenser 71 are connected in series. One end of the condenser 71 selectively connects the multi-way pipe 63 and one end of the warm air core 51. The other end of the condenser 71 connects one end of the electric heater 52. The other end of the electric heater 52 connects the other end of the warm air core 51 and the first control valve 61. The refrigerant of the air conditioning system can flow through the condenser 71, and the coolant of the heating circuit 50 can flow through the condenser 71, that is, the condenser 71 is not only part of the air conditioning system, but also part of the heating circuit 50. When the air conditioning system is running, the condenser 71 will generate heat, which can be transmitted to the battery heat exchange circuit 20 or the warm air core 51 through the first control valve 61 and the second control valve 62, to heat the battery pack 21 or the passenger cabin, thereby reasonably utilizing the heat generated by the condenser 71. The first control valve 61 and the second control valve 62 can also connect the radiator circuit 30 and the condenser 71 in series, transmit the heat to the radiator circuit 30, and dissipate the heat to the outside through the radiator 31, to cool the condenser 71.​

[0062] One end of the warm air core 51 is communicated with the second control valve 62, and the other end of the warm air core 51 is communicated with the other end of the condenser 71. The condenser 71 dissipates heat to the cooling liquid, and the cooling liquid flows through the warm air core 51 to dissipate heat to the passenger compartment, thereby achieving heating the passenger compartment.

[0063] The electric heater 52 is connected in series with the condenser 71, and when the second control valve 62 communicates both ends of the heating circuit 50, the cooling liquid in the heating circuit 50 can be heated by the electric heater 52, so that the electric heater 52 can play a role of heating when the air conditioning system is not running. The electric heater 52 can be a PTC heater.

[0064] The heating circuit 50 further comprises a third water pump 53, which is arranged between one end of the condenser 71 and the second control valve 62, and the third water pump 53 is connected in series with the condenser 71. The third water pump 53 can realize the circulating flow of the cooling liquid.

[0065] In combination Figures 1-7 As shown, the thermal management system 100 further comprises a second control valve 62, one end of the second control valve 62 is communicated with one end of the condenser 71, the other end of the second control valve 62 is communicated with the multi-way pipe 63, and the other end of the second control valve 62 is communicated with one end of the warm air core 51. The second control valve 62 comprises a tenth valve port, an eleventh valve port and a twelfth valve port, the tenth valve port is "j" in Figures 1-7 , the eleventh valve port is "k" in Figures 1-7 , and the twelfth valve port is "m" in Figures 1-7 .

[0066] The tenth valve port is communicated with the third port of the multi-way pipe 63, the eleventh valve port is communicated with one end of the condenser 71, and the twelfth valve port is communicated with one end of the warm air core 51. When the tenth valve port and the eleventh valve port are communicated, one end of the battery heat exchange circuit 20 can be connected in series with the condenser 71, for example, as shown in Figure 3 , the condenser 71, the battery heat exchange circuit 20 and the radiator 31 are connected in series to achieve cooling of the battery pack 21 and cooling of the condenser 71; or as shown in Figures 4-6 , the battery pack 21 and the condenser 71 are connected in series, thereby achieving heating of the battery pack 21; or as shown in Figure 2 , the fifth valve port and the seventh valve port are respectively communicated with both ends of the condenser 71, and when the first control valve 61 communicates the first valve port and the fifth valve port and communicates the seventh valve port and the eighth valve port, the condenser 71 and the radiator 31 can be connected in series to cool the condenser 71.

[0067] According to some embodiments of the present application, the heat exchanger circuit 40 comprises: a heat exchanger 41, one end of the heat exchanger 41 being in communication with the first control valve 61 and one end of the battery heat exchange circuit 20, the other end of the heat exchanger 41 being in communication with the first control valve 61, and the air conditioning system being in communication with the heat exchanger 41; and the heating circuit 50 comprises: a condenser 71, an electric heater 52 and a heating core 51, the electric heater 52 and the heating core 51 being in series with each other; and the air conditioning system comprises: a compressor 73 and an evaporator 72, the compressor 73, the evaporator 72 and the condenser 71 being in series with each other; wherein the heat exchanger 41 and the evaporator 72 are in parallel with each other and in series with the condenser 71. The refrigerant in the air conditioning system exchanges heat with the coolant at the heat exchanger 41, so that the refrigerant can absorb heat from the battery heat exchange circuit 20 or the high-pressure heat exchange circuit 10 or the environment. The refrigerant flows out of the compressor 73, releases heat at the condenser 71, absorbs heat at the evaporator 72 or the heat exchanger 41 after the heat release is completed, and finally returns to the compressor 73; when the passenger compartment is refrigerated, the refrigerant absorbs the heat of the passenger compartment at the evaporator 72, and the coolant flowing through the condenser 71 releases heat to the heating circuit 50.

[0068] Further, the heat exchanger 41 is in parallel with the evaporator 72, so that the refrigerant can flow to the heat exchanger 41 to absorb heat after releasing heat at the condenser 71, and the heat absorbed by the refrigerant from the heat exchanger 41 can be used to transfer to the heating circuit 50 at the condenser 71 for heating the passenger compartment; or the refrigerant can flow to the evaporator 72 to absorb heat after releasing heat at the condenser 71.

[0069] According to some embodiments of the present application, the radiator circuit 30 comprises: a radiator 31, one end of the radiator 31 being in communication with the first control valve 61 and one end of the high-pressure heat exchange circuit 10, the other end of the radiator 31 being in communication with the first control valve 61. Specifically, when the coolant flows through the radiator 31, if the temperature of the coolant is higher than the radiator 31, the radiator 31 will dissipate heat to the outside; if the temperature of the coolant is lower than the radiator 31, the coolant will absorb the heat of the radiator 31.

[0070] Further, the battery heat exchange circuit 20 comprises: a battery pack 21 and a second water pump 22, the battery pack 21 and the second water pump 22 being in series. The battery pack 21 and the second water pump 22 are in series. The coolant can flow in the battery heat exchange circuit 20 under the drive of the second water pump 22, if the coolant flowing in the battery heat exchange circuit 20 is higher than the temperature of the battery pack 21, the coolant will heat the battery pack 21, if the coolant flowing in the battery heat exchange circuit 20 is lower than the temperature of the battery pack 21, the coolant will cool the battery pack 21.

[0071] The first water pump 13 can realize the circulating flow of the coolant.

[0072] The high-pressure heat exchange circuit 10 further comprises a first temperature sensor, which is in series with the first water pump 13 and the motor 11. Specifically, the first temperature sensor can monitor the temperature of the coolant, so as to control the opening degree of the first water pump 13 according to the temperature of the coolant, and then control the flow rate of the coolant. For example, when the temperature of the coolant is high, the opening degree of the first water pump 13 can be increased.

[0073] According to some embodiments of the present application, the heat exchanger circuit 40 comprises a heat exchanger 41, one end of the heat exchanger 41 being communicated with the first control valve 61; and the battery heat exchange circuit 20 comprises a second water pump 22 and a battery pack 21, the second water pump 22 and the battery pack 21 being in series, one end of the second water pump 22 being communicated with the first control valve 61. The battery pack 21 and the second water pump 22 are in series, and the coolant is driven to circulate in the battery pack 21 by the second water pump 22, so as to facilitate the battery pack 21 to realize heat absorption or heat dissipation.

[0074] The thermal management system 100 further comprises a water overflow tank 81 and a four-way pipe 82, the four-way pipe 82 being communicated with the radiator circuit 30, the first control valve 61, the high-pressure heat exchange circuit 10 and the water overflow tank 81 respectively. The radiator 31 is communicated with the first valve port and the high-pressure heat exchange circuit 10 through the four-way pipe 82. One pipe port of the four-way pipe 82 is communicated with one end of the radiator 31, another pipe port of the four-way pipe 82 is communicated with the water overflow tank 81, yet another pipe port of the four-way pipe 82 is communicated with the first valve port, and still another pipe port of the four-way pipe 82 is communicated with one end of the high-pressure heat exchange circuit 10.

[0075] According to the vehicle of the second aspect of the embodiments of the present application, the vehicle comprises the thermal management system 100.

[0076] The following refers to Figures 2-7 Six working modes of the thermal management system 100 of the embodiments of the present application are described.

[0077] Referring to Figure 2 The working mode one of the thermal management system 100 is shown in Fig. 2.

[0078] Circuit one: the radiator 31→the first water pump 13→the electronic control 12→the motor 11→the first control valve 61→the second one-way valve 65→the first control valve 61→the radiator 31.

[0079] The sixth valve port and the ninth valve port are communicated, and the seventh valve port and the eighth valve port are communicated. That is, the first control valve 61 and the first one-way valve 64 cooperate with each other to connect the radiator circuit 30 and the high-pressure heat exchange circuit 10 in series, so that the waste heat generated by the high-voltage devices (such as the motor 11 and the electronic control 12) in the high-pressure heat exchange circuit 10 can be dissipated to the outside through the radiator 31, realizing cooling of the high-voltage components.

[0080] Loop two: second water pump 22→battery pack 21→first stop valve 66→heat exchanger 41→first control valve 61→second water pump 22.

[0081] When the second valve port and the fourth valve port are communicated, the battery heat exchange loop 20 and the heat exchanger loop 40 are connected in series. The heat exchanger 41 in the heat exchanger loop 40 can absorb the heat of the battery pack 21, so as to cool the battery pack 21.

[0082] Loop three: condenser 71→electric heater 52→first control valve 61→radiator 31→first control valve 61→multi-way pipe 63→second control valve 62→third water pump 53→condenser 71.

[0083] When the sixth valve port and the ninth valve port are communicated, the seventh valve port and the eighth valve port are communicated, the tenth valve port and the eleventh valve port are communicated, that is, the fifth valve port and one end of the condenser 71 are communicated, the condenser 71 is connected in series with the radiator 31 after being connected in parallel with the high-voltage heat exchange loop 10, and the heat of the cold and warm device and the heat of the high-voltage device can be dissipated to the outside through the radiator 31.

[0084] Loop four: condenser 71→electric heater 52→warm air core 51→second control valve 62→third water pump 53→condenser 71.

[0085] When the eleventh valve port and the twelfth valve port are communicated, the second control valve 62 is connected to both ends of the heating loop 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the battery pack 21 and releases it to the air conditioning system, and the condenser 71 can transmit this part of the heat to the heating loop 50 for cabin heating, thereby improving the energy utilization rate.

[0086] Referring to Figure 3 Fig. 2, the working mode two of the thermal management system 100 is as follows:

[0087] Loop one: radiator 31→first water pump 13→electric control 12→electric machine 11→first control valve 61→second check valve 65→radiator 31.

[0088] Among them, the sixth valve port and the ninth valve port are communicated, the seventh valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected in series with the radiator loop 30 and the high-voltage heat exchange loop 10, the waste heat generated by the electric machine 11 and the electric control 12 is dissipated to the outside through the radiator 31, and the cooling of the electric machine 11 and the electric control 12 is realized.

[0089] Loop two: radiator 31→first control valve 61→second water pump 22→battery pack 21→first check valve 64→second check valve 65→first control valve 61→radiator 31.

[0090] The first valve port and the fourth valve port are communicated, and the seventh valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected in series with the radiator circuit 30 and the battery heat exchange circuit 20, and the cooling liquid flows between the battery heat exchange circuit 20 and the radiator circuit 30, so that the heat of the battery is dissipated to the outside through the radiator 31, and the battery pack 21 is cooled.

[0091] Specifically, the circuit one and the circuit two are connected in parallel with the battery heat exchange circuit 20 and the high-pressure heat exchange circuit 10 and then connected in series with the radiator 31, so that the battery pack 21 and the motor 11 are cooled at the same time.

[0092] Circuit three: radiator 31→first control valve 61→second water pump 22→battery pack 21→multi-way pipe 63→second control valve 62→third water pump 53→condenser 71→first control valve 61→radiator 31.

[0093] The first valve port and the fourth valve port are communicated, and the seventh valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected in series with the radiator circuit 30, the battery heat exchange circuit 20 and the condenser 71, and the cooling liquid flows between the battery pack 21, the condenser 71 and the radiator 31, so that the heat of the battery pack 21 and the heat of the condenser 71 are dissipated to the outside through the radiator 31, and the battery pack 21 and the condenser 71 are cooled.

[0094] Circuit four: condenser 71→electric heater 52→warm air core 51→second control valve 62→third water pump 53→condenser 71.

[0095] The eleventh valve port and the twelfth valve port are communicated, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the battery pack 21 and releases it to the air conditioning system, and the condenser 71 can transfer part of the heat to the heating circuit 50 for cabin heating, thereby improving energy utilization.

[0096] The circuit three and the circuit four are connected according to actual needs.

[0097] Referring to Figure 4 Fig. 3 shows the working mode three of the thermal management system 100.

[0098] Circuit one: radiator 31→first water pump 13→electric control 12→motor 11→first control valve 61→heat exchanger 41→first control valve 61→radiator 31.

[0099] The ninth valve port and the third valve port are communicated, and the second valve port and the eighth valve port are communicated. That is, the first control valve 61 is connected in series with the radiator circuit 30, the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40, and the radiator 31, the first water pump 13, the electric control 12, the motor 11 and the heat exchanger 41 are connected in series. Under the driving of the first water pump 13, the coolant flows through the radiator 31, the electric control 12 and the motor 11 in sequence, absorbs the heat (environmental heat) of the radiator 31 and the heat of the motor 11, and transmits the absorbed heat to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0100] Circuit two: condenser 71→electric heater 52→warm air core 51→second control valve 62→third water pump 53→condenser 71.

[0101] The tenth valve port and the eleventh valve port are communicated, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the motor 11 and the environmental heat and releases it to the air conditioning system, and the condenser 71 can transfer part of the heat to the heating circuit 50 for heating the passenger compartment, thereby improving the energy utilization rate.

[0102] Circuit three: condenser 71→electric heater 52→first control valve 61→second water pump 22→battery pack 21→second control valve 62→third water pump 53→condenser 71.

[0103] The first control valve 61 connects the fourth valve port and the seventh valve port, and the second control valve 62 connects the tenth valve port and the eleventh valve port. The battery heat exchange circuit 20 and the condenser 71 are connected in series, the battery heat exchange circuit 20 and the condenser 71 are connected in series, and the condenser 71 can use the heat of the motor 11 and the environmental heat to heat the battery pack 21, thereby ensuring the normal operation of the battery pack 21 and fully utilizing the heat of the high-pressure heat exchange circuit 10 and the environment, thereby improving the energy utilization rate.

[0104] Circuit four: battery pack 21→first one-way valve 64→second one-way valve 65→first control valve 61→second water pump 22→battery pack 21.

[0105] The fourth valve port and the seventh valve port are communicated, and the first control valve 61, the first one-way valve 64 and the second one-way valve 65 are connected to both ends of the battery heat exchange circuit 20. The coolant circulates in the battery heat exchange circuit 20 to realize the temperature equalization of the battery pack 21.

[0106] Circuit three and circuit two can be connected simultaneously, or circuit two or circuit three can be connected alone.

[0107] The three circuits one, two and three are communicated to realize water source heat pump absorbing heat of radiator 31 and motor 11, for heating passenger cabin and battery pack 21; when the circuit one and the circuit two are communicated, water source heat pump can absorb heat of radiator 31 and motor 11, for heating passenger cabin; when the circuit one and the circuit three are communicated, water source heat pump can absorb heat of radiator 31 and motor 11, for heating battery pack 21.

[0108] Referring to Figure 5 The working mode four of the thermal management system 100 is shown in Fig. 6:

[0109] Circuit one: first water pump 13→electronic control 12→motor 11→first control valve 61→heat exchanger 41→first control valve 61→first water pump 13.

[0110] The ninth valve port and the third valve port are communicated, and the second valve port and the first valve port are communicated. That is, the first control valve 61 is connected in series with the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40, and the first water pump 13, the electronic control 12, the motor 11 and the heat exchanger 41 are connected in series. Under the drive of the first water pump 13, the coolant flows through the electronic control 12, the motor 11 in turn, absorbs the heat of the motor 11, and transmits the absorbed heat to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0111] Circuit two: condenser 71→electric heater 52→warm air core 51→second control valve 62→third water pump 53→condenser 71.

[0112] The tenth valve port and the eleventh valve port are communicated, and the second control valve 62 is connected to both ends of the heating circuit 50. The condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series. The heat exchanger 41 absorbs the heat of the motor 11 and releases it to the air conditioning system. The condenser 71 can transfer part of the heat to the heating circuit 50 for heating the passenger cabin, improving energy utilization.

[0113] Circuit three: condenser 71→electric heater 52→first control valve 61→second water pump 22→battery pack 21→second control valve 62→third water pump 53→condenser 71.

[0114] The first control valve 61 connects the fourth valve port and the seventh valve port, and the second control valve 62 connects the tenth valve port and the eleventh valve port, connecting the battery heat exchange circuit 20 and the condenser 71 in series. The condenser 71 can use the heat of the motor 11 to heat the battery pack 21, ensuring the normal operation of the battery pack 21, fully utilizing the heat of the high-pressure heat exchange circuit 10 and the environment, and improving energy utilization.

[0115] Circuit four: battery pack 21→first one-way valve 64→second one-way valve 65→first control valve 61→second water pump 22→battery pack 21.

[0116] Wherein, the fourth valve port and the seventh valve port are communicated, the first control valve 61, the first check valve 64 and the second check valve 65 are communicated two ends of the battery heat exchange circuit 20, the cooling liquid circulates in the battery heat exchange circuit 20, and the battery pack 21 is uniformly heated.

[0117] The circuit three and the circuit two can be communicated simultaneously, or the circuit two or the circuit three can be communicated alone.

[0118] The communication of the circuit one, the circuit two and the circuit three can realize that the water source heat pump absorbs the heat of the motor 11, and is used for heating the passenger cabin and the battery pack 21; when the circuit one and the circuit two are communicated, the water source heat pump can absorb and the heat of the motor 11, and is used for heating the passenger cabin; when the circuit one and the circuit three are communicated, the water source heat pump can absorb the heat of the motor 11, and is used for heating the battery pack 21.

[0119] Referring to Figure 6 Fig. 5, the working mode five of the thermal management system 100 is as follows:

[0120] Circuit one: the first water pump 13→the electric control 12→the motor 11→the first control valve 61→the first water pump 13.

[0121] Wherein, the first valve port and the ninth valve port are communicated, that is, the first control valve 61 communicates two ends of the high-pressure heat exchange waterway, and the heat accumulation of the motor 11 is realized.

[0122] Circuit two: the condenser 71→the electric heater 52→the first control valve 61→the second water pump 22→the battery pack 21→the second control valve 62→the third water pump 53→the condenser 71.

[0123] The first control valve 61 communicates the fourth valve port and the seventh valve port, the second control valve 62 communicates the tenth valve port and the eleventh valve port, the battery heat exchange circuit 20 and the condenser 71 are connected in series, the compressor 73 works, the heat of the condenser 71 is released, the cooling liquid exchanges heat with the condenser 71, and then flows out from the condenser 71 to the battery heat exchange circuit 20, so as to heat the battery pack 21.

[0124] Circuit three: the condenser 71→the electric heater 52→the heating core 51→the second control valve 62→the third water pump 53→the condenser 71.

[0125] Wherein, the eleventh valve port and the twelfth valve port are communicated, the second control valve 62 communicates two ends of the heating circuit 50, the condenser 71, the electric heater 52, the heating core 51 and the third water pump 53 are connected in series, the compressor 73 works, the heat of the condenser 71 is released, the cooling liquid exchanges heat with the condenser 71, and then flows out from the condenser 71 to the heating core 51, so as to realize the heating of the passenger cabin.

[0126] Loop three and loop two can be connected simultaneously, or loop two or loop three can be connected alone.

[0127] Loop four: battery pack 21→first check valve 64→second check valve 65→first control valve 61→second water pump 22→battery pack 21.

[0128] Wherein, the fourth valve port and the seventh valve port are communicated, the first control valve 61, the first check valve 64 and the second check valve 65 are communicated two ends of the battery heat exchange circuit 20, the coolant circulates in the battery heat exchange circuit 20, and the battery pack 21 is uniformly heated. If the battery pack 21 does not need to be heated, loop four can be connected, loop four and loop three can be connected simultaneously, and loop four and loop two cannot be connected simultaneously.

[0129] Loop five: battery pack 21→stop valve→heat exchanger 41→first control valve 61→second water pump 22→battery pack 21.

[0130] That is, the stop valve is opened, and the second valve port and the sixth valve port are communicated. When the battery pack 21 is overheated, the battery heat exchange circuit 20 and the heat exchanger 41 can be connected, and the coolant flowing out of the battery pack 21 can flow to the heat exchanger 41. The heat exchanger 41 absorbs the heat of the battery pack 21, and the battery pack 21 is cooled.

[0131] Referring to Figure 7 Fig. 6 shows the working mode six of the thermal management system 100:

[0132] Loop one: first water pump 13→electric control 12→motor 11→first control valve 61→second water pump 22→battery pack 21→multi-way pipe 63→first check valve 64→second check valve 65→first control valve 61→first water pump 13.

[0133] Wherein, the first valve port and the seventh valve port are communicated, and the fourth valve port and the ninth valve port are communicated, that is, the first control valve 61, the first check valve 64 and the second check valve 65 are connected in series with the high-pressure heat exchange water circuit and the battery heat exchange circuit 20, and the heat generated by the motor 11 can be used to heat the battery pack 21.

[0134] Loop two: first water pump 13→electric control 12→motor 11→first control valve 61→second water pump 22→battery pack 21→second control valve 62→third water pump 53→condenser 71→electric heater 52→first control valve 61→first water pump 13.

[0135] The first valve port is communicated with the seventh valve port, the fourth valve port is communicated with the ninth valve port, the second control valve 62 is communicated with the tenth valve port and the eleventh valve port, and the series motor 11 heat exchange circuit, the battery heat exchange circuit 20 and the condenser 71. The compressor 73 works, the refrigerant releases heat at the condenser 71, the coolant exchanges heat with the refrigerant at the condenser 71, the coolant flows out of the condenser 71 and flows to the battery heat exchange circuit 20, thereby heating the battery pack 21; if the temperature of the motor 11 is lower than that of the coolant, the coolant heats the motor 11, realizing the preheating of the motor 11; if the temperature of the motor 11 is higher than that of the coolant, the coolant absorbs the heat of the motor 11, which is used to heat the battery pack 21.

[0136] Circuit three: the condenser 71→the electric heater 52→the warm air core 51→the second control valve 62→the third water pump 53→the condenser 71.

[0137] The eleventh valve port is communicated with the twelfth valve port, the second control valve 62 is communicated with both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the compressor 73 works, the refrigerant releases heat at the condenser 71, the coolant exchanges heat with the refrigerant at the condenser 71, the coolant flows out of the condenser 71 and flows to the warm air core 51, thereby realizing the heating of the passenger compartment.

[0138] The circuit three and the circuit two can be simultaneously communicated, or the circuit two or the circuit three can be communicated alone.

[0139] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0140] In the description of the present application, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0141] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A thermal management system, characterized in that: include: Air conditioning system; a first control valve (61), wherein the first control valve (61) is connected to a high-pressure heat exchange circuit (10), a battery heat exchange circuit (20), a radiator circuit (30), and a heat exchange circuit (40); the first control valve (61) selectively connects one or more of the high-pressure heat exchange circuit (10), the battery heat exchange circuit (20), the radiator circuit (30), and the heat exchange circuit (40); the air conditioning system exchanges heat with the heat exchange circuit (40) and the heating circuit (50); a multi-way pipe (63), wherein at least two ends of the multi-way pipe (63) are in communication with the first control valve (61), and another end of the multi-way pipe (63) is in communication with the battery heat exchange circuit (20); and The high-pressure heat exchange circuit (10) comprises: a motor (11), an electric control (12) and a first water pump (13), wherein the motor (11), the electric control (12) and the first water pump (13) are connected in series; and The heating circuit (50) includes: a condenser (71), an electric heater (52) and a warm air core (51); the electric heater (52) and the condenser (71) are connected in series; one end of the condenser (71) is selectively connected to the multi-way pipe (63) and one end of the warm air core (51); the other end of the condenser (71) is connected to one end of the electric heater (52); and the other end of the electric heater (52) is connected to the other end of the warm air core (51) and the first control valve (61).

2. The thermal management system according to claim 1, characterized in that The multi-way pipe (63) comprises: a first pipe opening and a second pipe opening; and, The thermal management system (100) further includes: a first branch (83) and a second branch (84), wherein the first branch (83) is connected between the first pipe port and a valve port of the first control valve (61), one end of the second branch (84) is connected to the second pipe port, and the other end of the second branch (84) is connected to the battery heat exchange circuit (20).

3. The thermal management system according to claim 2, characterized in that: The multi-way pipe (63) further includes: a third pipe opening and a fourth pipe opening; and, The thermal management system (100) further includes: a third branch (85) and a fourth branch (86), one end of the third branch (85) being connected to the third pipe port and the other end selectively connected to one end of the condenser (71), and one end of the fourth branch (86) being connected to the fourth pipe port and the other end being connected to the first control valve (61).

4. The thermal management system according to claim 3, characterized in that: The fourth branch (86) is provided with a first one-way valve (64) and a second one-way valve (65). One end of the first one-way valve (64) is connected to the fourth pipe port and the other end is connected to one end of the second one-way valve (65). The other end of the second one-way valve (65) is connected to the first control valve (61).

5. The thermal management system according to claim 4, characterized in that: Also includes: A fifth branch (87), one end of the fifth branch (87) is connected to the first control valve (61), and the other end of the fifth branch (87) is connected to one end of the second one-way valve (65).

6. The thermal management system according to claim 1, wherein: Also includes: A sixth branch (88), one end of the sixth branch (88) is connected to the first control valve (61), and the other end of the sixth branch (88) is connected to one end of the heat exchanger circuit (40).

7. The thermal management system according to claim 1, wherein: Also includes: A first stop valve (66), one end of the first stop valve (66) is in communication with one end of the battery heat exchange circuit (20), and the other end of the first stop valve (66) is in communication with one end of the heat exchange circuit (40).

8. The thermal management system according to claim 1, wherein: Also includes: A second control valve (62), one end of the second control valve (62) is connected to one end of the condenser (71), another end of the second control valve (62) is connected to the multi-way pipe (63), and another end of the second control valve (62) is connected to one end of the heater core (51).

9. The thermal management system according to claim 1, wherein: The heat exchanger circuit (40) comprises: a heat exchanger (41), one end of the heat exchanger (41) being in communication with the first control valve (61) and one end of the battery heat exchange circuit (20), the other end of the heat exchanger (41) being in communication with the first control valve (61), and the air conditioning system being in communication with the heat exchanger (41).

10. The thermal management system according to claim 9, characterized in that: The air conditioning system comprises: a compressor (73) and an evaporator (72), wherein the compressor (73), the evaporator (72) and the condenser (71) are connected in series; The heat exchanger (41) and the evaporator (72) are connected in parallel to each other and in series with the condenser (71).

11. The thermal management system according to claim 1, wherein: The radiator circuit (30) comprises: a radiator (31), one end of the radiator (31) being in communication with the first control valve (61) and one end of the high-pressure heat exchange circuit (10), and the other end of the radiator (31) being in communication with the first control valve (61); and The battery heat exchange circuit (20) comprises: a second water pump (22) and a battery pack (21); the second water pump (22) and the battery pack (21) are connected in series; one end of the second water pump (22) is in communication with the first control valve (61).

12. A vehicle, characterized in that: include: The thermal management system (100) according to any one of claims 1 to 11.

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