Thermal management system and vehicle

Abstract

A thermal management system (100) and a vehicle. The thermal management system (100) comprises: an air conditioning system (70); a first control valve (61), on which a high-pressure heat exchange loop (10), a battery heat exchange loop (20), a radiator loop (30), and a heat exchanger loop (40) are connected, the first control valve (61) being selectively connect one or more of the high-pressure heat exchange loop (10), the battery heat exchange loop (20), the radiator loop (30), and the heat exchanger loop (40), and the air conditioning system (70) exchanging heat with the heat exchanger loop (40) and a heating loop (50); a multi-way pipe (63), at least two ends of the multi-way pipe (63) being connected to the first control valve (61), and another end of the multi-way pipe (63) being connected to the battery heat exchange loop (20); and a condenser (71), an end of the condenser (71) being selectively connected to yet another end of the multi-way pipe (63), and another end of the condenser (71) being connected to the first control valve (61). A plurality of loops are interconnected via the first control valve (61) and the multi-way pipe (63), thereby reducing flow resistance under various operating modes, improving energy utilization, and optimizing the energy utilization efficiency of a heat pump or the heating loop (50).

Description

Thermal management system and vehicle Technical Field

[0001] This application relates to the field of vehicle thermal management technology, and in particular to a thermal management system and a vehicle. Background Technology

[0002] With the rapid development of the pure electric vehicle industry, the integration of vehicle control systems is becoming increasingly sophisticated. Among these advancements, the 800V high-voltage system offers higher efficiency and faster charging, while its thermal management system continues to evolve towards greater efficiency and energy conservation. Furthermore, the widespread application of heat pump systems allows for the rational utilization of motor waste heat, and battery cooling and heating methods are becoming more diverse, ultimately leading to a more complex and diversified thermal management system architecture across various vehicle models.

[0003] Due to differences in properties and design requirements, each system and component of a pure electric vehicle has a different optimal operating temperature range. Therefore, external auxiliary means are needed to maintain each component within a suitable temperature range to ensure normal, stable, and efficient operation of the components and to meet the comfort needs of passengers in the passenger compartment. In pure electric vehicles, the battery generates a large amount of heat during operation, and the performance and lifespan of the battery are closely related to temperature. Therefore, an efficient and intelligent thermal management architecture is crucial. Summary of the Invention

[0004] To address the problems in related technologies, this application proposes a thermal management system and vehicle that connects multiple circuits through a first control valve and a multi-port pipe, thereby reducing flow resistance in each operating mode, improving energy utilization, and optimizing the energy utilization efficiency of the heat pump or heating circuit.

[0005] According to an embodiment of the first aspect of this application, a thermal management system is provided, comprising: an air conditioning system; a first control valve, which is connected to a high-pressure heat exchange circuit, a battery heat exchange circuit, a radiator circuit, and a heat exchanger circuit, wherein the first control valve selectively connects to 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 exchanging heat with the heat exchanger circuit and the heating circuit; a multi-port pipe, at least two ends of which are connected to the first control valve, and another end of which is connected to the battery heat exchange circuit; and a condenser, one end of which is selectively connected to another end of the multi-port pipe, and the other end of which is connected to the first control valve.

[0006] According to the thermal management system of this application embodiment, multiple circuits are connected through a first control valve and a multi-way pipe to reduce flow resistance in each working mode, improve energy utilization, and optimize the energy utilization efficiency of heat pumps or heating circuits.

[0007] According to some embodiments of this application, the multi-port pipe includes: a first port and a second port; and the thermal management system further includes: a first branch and a second branch, the first branch being connected between the first port and a valve port of the first control valve, one end of the second branch being connected to the second port, and the other end of the second branch being connected to the battery heat exchange circuit.

[0008] According to some embodiments of this application, the thermal management system further includes: a third branch and a fourth branch, one end of the third branch being connected to a third port and the other end being selectively connected to one end of the condenser, and one end of the fourth branch being connected to a fourth port and the other end being connected to a first control valve.

[0009] According to some embodiments of this application, a first check valve and a second check valve are provided on the fourth branch. One end of the first check valve is connected to the fourth pipe port and the other end is connected to one end of the second check valve. The other end of the second check valve is connected to the first control valve.

[0010] According to some embodiments of this application, the thermal management system further includes: a fifth branch, one end of which is connected to a first control valve, and the other end of which is connected to one end of a second check valve.

[0011] According to some embodiments of this application, the thermal management system further includes: a sixth branch, one end of which is connected to the first control valve, and the other end of which is connected to one end of the heat exchanger circuit.

[0012] According to some embodiments of this application, the thermal management system further includes: a shut-off valve, one end of which is connected to one end of the battery heat exchange circuit, and the other end of which is connected to one end of the heat exchanger circuit.

[0013] According to some embodiments of this application, the heating circuit includes: a condenser, an electric heater, and a heating core. The electric heater and the condenser are connected in series. One end of the condenser is selectively connected to a multi-port pipe and one end of the heating core. The other end of the condenser is connected to one end of the electric heater. The other end of the electric heater is connected to the other end of the heating core and a first control valve.

[0014] According to some embodiments of this application, the thermal management system further includes: a second control valve, one end of which is connected to one end of the condenser, another end of which is connected to a multi-port pipe, and yet another end of which is connected to one end of the heater core.

[0015] According to some embodiments of this application, the thermal management system further includes a second control valve, which is connected to one end of the battery heat exchange circuit and one end of the heat exchanger circuit.

[0016] According to some embodiments of this application, the heating circuit includes: a condenser, an electric heater, and a heating core. The electric heater and the condenser are connected in series. One end of the condenser is selectively connected to a multi-port pipe and one end of the heating core. The other end of the condenser is connected to one end of the electric heater, and the other end of the electric heater is connected to the other end of the heating core and a first control valve.

[0017] According to some embodiments of this application, the second control valve is connected to one end of the condenser, and the multi-port pipe is connected to one end of the heater core.

[0018] According to some embodiments of this application, the heat exchanger circuit includes: a heat exchanger, one end of which is connected to a first control valve and one end of a battery heat exchange circuit, the other end of which is connected to the first control valve, and the air conditioning system and the heat exchanger are connected.

[0019] According to some embodiments of this application, the heating circuit includes: a condenser, an electric heater, and a heating core, wherein the electric heater and the heating core are connected in series.

[0020] According to some embodiments of this application, an air conditioning system includes a compressor and an evaporator, wherein the compressor, evaporator, and condenser are connected in series. A heat exchanger and evaporator are connected in parallel and in series with the condenser.

[0021] According to some embodiments of this application, the radiator circuit includes: a radiator, one end of which is connected to a first control valve and one end of a high-pressure heat exchange circuit, and the other end of which is connected to the first control valve.

[0022] According to some embodiments of this application, the high-pressure heat exchange circuit includes: a motor, an electronic control unit, and a first liquid pump, which are connected in series; the battery heat exchange circuit includes: a second liquid pump and a battery pack, which are connected in series, and one end of the second liquid pump is connected to a first control valve.

[0023] According to an embodiment of the second aspect of this application, a vehicle is provided, the vehicle including: the thermal management system described above.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the drawings only show some embodiments of this application and should not be considered as limiting the scope. It should also be understood that the same or similar reference numerals are used in the drawings to represent the same or similar elements. It should also be understood that the drawings are merely schematic, and the dimensions and scale of the elements in the drawings are not necessarily precise. The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings.

[0026] Figure 1 is a schematic diagram of the structure of a thermal management system according to an embodiment of this application.

[0027] Figure 2 is a circuit diagram of a first mode of the thermal management system according to an embodiment of this application.

[0028] Figure 3 is a circuit diagram of a second mode of the thermal management system according to an embodiment of this application.

[0029] Figure 4 is a circuit diagram of the third mode of the thermal management system according to an embodiment of this application.

[0030] Figure 5 is a circuit diagram of the fourth mode of the thermal management system according to an embodiment of this application.

[0031] Figure 6 is a circuit diagram of the fifth mode of the thermal management system according to an embodiment of this application.

[0032] Figure 7 is a circuit diagram of the sixth mode of the thermal management system according to an embodiment of this application.

[0033] Figure 8 is another structural schematic diagram of a thermal management system according to an embodiment of this application.

[0034] Figure 9 is another structural schematic diagram of a thermal management system according to an embodiment of this application.

[0035] Figure label:

[0036] 100. Thermal management system;

[0037] 10. High-pressure heat exchange circuit; 11. Motor; 11a. Front drive electrode; 11b. Rear drive motor; 12. Electrical control; 12a. First electrical control; 12b. Second electrical control; 13. First water pump / first liquid pump; 14. First temperature sensor;

[0038] 20. Battery heat exchange circuit; 21. Battery pack; 22. Second water pump / second liquid pump;

[0039] 30. Radiator circuit; 31. Radiator;

[0040] 40. Heat exchanger circuit; 41. Heat exchanger;

[0041] 50. Heating circuit; 51. Heater core; 52. Electric heater; 53. Third water pump;

[0042] 61. First control valve: a. First valve port; b. Second valve port; c. Third valve port; d. Fourth valve port; e. Fifth valve port; f. Sixth valve port; g. Seventh valve port; h. Eighth valve port; i. Ninth valve port; j. Tenth valve port; k. Eleventh valve port; m. Twelfth valve port; 62 / 62a. Second control valve: 2a. Thirteenth valve port; 2b. Fourteenth valve port; 2c. Fifteenth valve port; 2d. Sixteenth valve port; 2e. Seventeenth valve port; 63. Multi-port pipe: 1a. First port; 1b. Second port; 1c. Third port; 1d. Fourth port; 64. First check valve; 65. Second check valve; 66. Shut-off valve;

[0043] 70. Air conditioning system; 71. Condenser; 72. Evaporator; 73. Compressor;

[0044] 81. Overflow tank; 82. Four-way pipe; 83. First branch; 84. Second branch; 85. Third branch; 86. Fourth branch; 87. Fifth branch; 88. Sixth branch. Detailed Implementation

[0045] The embodiments of this application are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary.

[0046] The thermal management system 100 and the vehicle of this application, according to embodiments of the present application, are described below with reference to Figures 1 to 9.

[0047] Referring to Figure 1, according to an embodiment of this application, the thermal management system 100 includes: a first control valve 61, which is connected to a high-pressure heat exchange circuit 10, a battery heat exchange circuit 20, a radiator circuit 30, and a heat exchanger circuit 40. The first control valve 61 selectively connects to one or more of the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40. The first control valve 61 includes: a plurality of valve ports, which are respectively connected to the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40. By controlling the connection of some or all of the plurality of valve ports, one or more of the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40 are selectively connected.

[0048] The thermal management system 100 also includes an air conditioning system 70 and a heating circuit 50, with the air conditioning system 70 exchanging heat with the heat exchanger circuit 40 and the heating circuit 50. The heating circuit 50 can be used for heating the passenger compartment. The air conditioning system 70 and the heating circuit 50 exchange heat through a condenser 71, where the refrigerant and coolant exchange heat, thereby achieving heat exchange between the air conditioning system 70 and the heating circuit 50.

[0049] For example, as shown in Figures 2 and 3, 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 loop. The heat generated by the high-pressure device in the high-pressure heat exchange circuit 10 is carried to the radiator circuit 30 by the coolant, thereby realizing the heat dissipation of the high-pressure device.

[0050] As shown in Figures 4 and 5, the first control valve 61 can connect the two ends of the battery heat exchange circuit 20, forming a closed loop within the battery heat exchange circuit 20 to achieve uniform temperature of the battery pack 21.

[0051] For example, as shown in Figure 3, 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. With the high-pressure heat exchange circuit 10 and the battery heat exchange circuit 20 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. This allows the heat generated by the battery pack 21 and the high-voltage components to be transported to the radiator 31 and dissipated to the outside, thus achieving heat dissipation for the battery pack 21 and the high-voltage components.

[0052] For example, as shown in Figure 4, 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, forming a closed loop. The heat exchanger circuit 40 exchanges heat with the air conditioning system 70, and the refrigerant in the air conditioning system 70 absorbs the waste heat generated by the high-pressure 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.

[0053] As shown in Figure 2, the first control valve 61 can be connected in series with the heat exchanger circuit 40 and the battery heat exchanger circuit 20. The heat exchanger circuit 40 can absorb the heat from the battery pack 21 and transfer the heat to the air conditioning system 70, which can be used for heating the passenger compartment.

[0054] As shown in Figure 2, the first control valve 61 connects the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40. The heat generated by the high-pressure components is carried to the heat exchanger circuit 40 by the coolant, thus recovering the waste heat from the high-pressure components. This waste heat can be used for defrosting in cold environments. Furthermore, since the heat exchanger circuit 40 is connected to the air conditioning system 70, the heat from the heat exchanger circuit 40 can be transferred to the condenser 71 via refrigerant, thereby achieving heating for the passenger compartment.

[0055] At least one closed loop is formed between the radiator 31, heat exchanger 41, battery heat exchange circuit 20 and high-pressure heat exchange circuit 10 by the first control valve 61. That is, the heat generated by the high-pressure heat exchange circuit 10 or battery heat exchange circuit 20 can be transported to the other circuits or devices, so that the heat generated by the thermal management system 100 can be effectively utilized.

[0056] The thermal management system 100 also includes a multi-port pipe 63, at least two ends of which are connected to the first control valve 61, and the other end of the multi-port pipe 63 is connected to the battery heat exchange circuit 20. For example, at least two ports of the multi-port pipe 63 are connected to two ports of the first control valve 61, and one port of the multi-port pipe 63 is connected to the battery heat exchange circuit 20.

[0057] The thermal management system 100 also includes a condenser 71. One end of the condenser 71 is selectively connected to another end of the multi-port pipe 63 and one end of the heating circuit 50, while the other end of the condenser 71 is connected to the first control valve 61 and the other end of the heating circuit 50. Specifically, when one end of the condenser 71 is connected to another end of the multi-port pipe 63, one valve port of the first control valve 61 or one end of the battery heat exchange circuit 20 is connected to one end of the condenser 71, and the other end of the condenser 71 is connected 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, enabling the use of waste heat from the motor 11 or ambient heat to heat the battery pack 21; or the radiator circuit 30 and the condenser 71 to be connected in series, thereby cooling the condenser 71 and improving the operating efficiency of the air conditioning system 70.

[0058] 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 "a" in Figures 1-7; the second valve port is "b" in Figures 1-7; the third valve port is "c" in Figures 1-7; the fourth valve port is "d" in Figures 1-7; the fifth valve port is "e" in Figures 1-7; the sixth valve port is "f" in Figures 1-7; the seventh valve port is "g" in Figures 1-7; the eighth valve port is "h" in Figures 1-7; and the ninth valve port is "i" in Figures 1-7.

[0059] Specifically, the first valve port a is connected to one end of the radiator 31, the second valve port b is connected to the other end of the heat exchanger 41, the third valve port c is connected to one end of the battery heat exchange circuit 20, the fourth valve port d is connected to the other end of the battery heat exchange circuit 20, and the fifth valve port e is connected to one port of the multi-port pipe 63.

[0060] As shown in Figure 1, the multi-port pipe 63 includes a first port 1a and a second port 1b. The thermal management system 100 also includes a first branch 83 and a second branch 84. The first branch 83 connects the first port 1a and one valve port of the first control valve 61. One end of the second branch 84 is connected to the second port 1b, and the other end of the second branch 84 is connected to the battery heat exchange circuit 20. That is, one end of the first branch 83 is connected to the first port 1a, and the other end of the first branch 83 is connected to the fifth valve port e. The second branch 84 connects the second port 1b and the battery heat exchange circuit 20. The first branch 83 can connect the fifth valve port e and the first port 1a, which can realize the series connection between the condenser 71 and the radiator circuit 30 to achieve cooling of the condenser 71. The second branch 84 can connect one end of the battery heat exchange circuit 20 to the second port 1b. Thus, the first control valve 61 can connect the battery heat exchange circuit 20 and the high-pressure heat exchange circuit 10 in series, using the waste heat of the motor 11 to heat the battery pack 21.

[0061] As shown in Figures 1 and 2, the thermal management system 100 also includes a third branch 85 and a fourth branch 86. One end of the third branch 85 is connected to the third port 1c of the multi-port pipe 63, and the other end is selectively connected to one end of the condenser 71. One end of the fourth branch 86 is connected to the fourth port 1d of the multi-port pipe 63, and the other end is connected to the first control valve 61. Specifically, the fourth branch 86 can connect one end of the battery heat exchange circuit 20 to the first control valve 61, so that the first control valve 61 can connect both ends of the battery heat exchange circuit 20 to achieve uniform temperature of the battery pack 21; or, the third branch 85 can connect the third port 1c of the multi-port pipe 63 to one end of the condenser 71, so that the condenser 71 is connected in series with the radiator circuit 30 to achieve cooling of the condenser 71.

[0062] Furthermore, a first check valve 64 and a second check valve 65 are provided on the fourth branch 86. One end of the first check valve 64 is connected to the fourth port 1d of the multi-way pipe 63, and the other end is connected to one end of the second check valve 65. The other end of the second check valve 65 is connected to the first control valve 61. As shown in Figure 1, the sixth valve port f is connected to one end of the second check valve 65, the seventh valve port g is connected to the other end of the second check valve 65 and the other end of the condenser 71, the eighth valve port h is connected to the other end of the radiator 31, and the ninth valve port i is connected to the other end of the high-pressure heat exchange circuit 10.

[0063] The thermal management system 100 also includes a fifth branch 87, one end of which is connected to the first control valve 61, and the other end of which is connected to the other end of the first check valve 64 and one end of the second check valve 65. One end of the fifth branch 87 is connected to the sixth valve port f, and the other end of the fifth branch 87 is connected to one end of the second check valve 65.

[0064] As shown in Figures 2 and 3, the fifth branch 87 is connected to the sixth valve port f and one end of the second check valve 65. The first control valve 61 can be connected to the sixth valve port f and the ninth valve port i. The other end of the second check valve 65 is connected to the seventh valve port g. The first control valve 61 is connected to the seventh valve port g and the eighth valve port h. Thus, the radiator circuit 30 and the high-pressure heat exchange circuit 10 can be connected in series.

[0065] As shown in Figure 6, the fifth branch 87 connects to the sixth valve port f and one end of the second check valve 65. The first control valve 61 can connect to the second valve port b and the sixth valve port f. The other end of the second check valve 65 is connected to the seventh valve port g. The first control valve 61 connects to the seventh valve port g and the fourth valve port d. The fourth valve port d is connected to the battery heat exchange circuit 20. If the shut-off valve 66 is opened, the battery heat exchange circuit 20 and the heat exchanger circuit 40 can be connected in series to achieve active cooling of the battery pack 21.

[0066] The thermal management system 100 also includes a shut-off valve 66, one end of which is connected to one end of the battery heat exchange circuit 20, and the other end of which is connected to one end of the heat exchanger circuit 40. Specifically, the thermal management system 100 also includes a sixth branch 88, one end of which is connected to the first control valve 61, and the other end of which is connected to one end of the heat exchanger circuit 40. The sixth branch 88 connects the third valve port c and one end of the heat exchanger circuit 40. If the first control valve 61 is connected to the second valve port b and the eighth valve port h, and also connected to the third valve port c and the ninth valve port i (as shown in Figure 4), then 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 from the motor 11 and the ambient heat, which can be used for heating the crew cabin or heating the battery.

[0067] The heating circuit 50 includes a condenser 71, an electric heater 52, and a heater core 51. The electric heater 52 and the condenser 71 are connected in series. One end of the condenser 71 is selectively connected to a multi-port pipe 63 and one end of the heater core 51. The other end of the condenser 71 is connected to one end of the electric heater 52. The other end of the electric heater 52 is connected to the other end of the heater core 51 and the first control valve 61. The refrigerant of the air conditioning system 70 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 70, but can also be part of the heating circuit 50. Thus, when the air conditioning system 70 is running, the condenser 71 generates heat, which can be transferred to the battery heat exchange circuit 20 or the heater core 51 through the first control valve 61 and the second control valve 62 to heat the battery pack 21 or the passenger compartment, thereby making reasonable use of the heat generated by the condenser 71. Alternatively, the radiator circuit 30 and the condenser 71 can be connected in series via the first control valve 61 and the second control valve 62 to transfer heat to the radiator circuit 30, and then dissipate the heat to the outside through the radiator 31 to achieve cooling of the condenser 71.

[0068] One end of the heater core 51 is connected to the second control valve 62, and the other end of the heater core 51 is connected to the other end of the condenser 71. The condenser 71 dissipates heat into the coolant, and the coolant flows through the heater core 51, thereby dissipating heat into the passenger compartment and heating the passenger compartment.

[0069] The electric heater 52 is connected in series with the condenser 71. When the second control valve 62 is connected to both ends of the heating circuit 50, the electric heater 52 can heat the coolant in the heating circuit 50, so that the electric heater 52 can provide heating when the air conditioning system 70 is not running. The electric heater 52 can be a PTC heater.

[0070] The heating circuit 50 also includes a third water pump 53, which is located between one end of the condenser 71 and the second control valve 62, and is connected in series with the condenser 71. The third water pump 53 can realize the circulation of coolant.

[0071] As shown in Figures 1-7, the thermal management system 100 further includes: a second control valve 62, one end of which is connected to one end of the condenser 71, another end of which is connected to the multi-port pipe 63, and yet another end of which is connected to one end of the heater core 51. The second control valve 62 includes: 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 1-8; and the twelfth valve port is "m" in Figures 1-7.

[0072] The tenth valve port j is connected to the third port 1c of the multi-port pipe 63, the eleventh valve port k is connected to one end of the condenser 71, and the twelfth valve port m is connected to one end of the heater core 51. When the tenth valve port j and the eleventh valve port k are connected, 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 the condenser 71. Alternatively, as shown in Figures 4 to 6, the battery pack 21 and the condenser 71 are connected in series to achieve heating of the battery pack 21. Or, as shown in Figure 2, the fifth valve port e and the seventh valve port g are connected to both ends of the condenser 71 respectively, and the first control valve 61 is connected to the first valve port a and the fifth valve port e, and also connected to the seventh valve port g and the eighth valve port h, so that the condenser 71 and the radiator 31 can be connected in series to cool the condenser 71.

[0073] In an alternative embodiment, the thermal management system 100 further includes a second control valve 62a, which is connected to one end of the battery heat exchange circuit 20 and one end of the heat exchanger circuit 40. Specifically, the thermal management system 100 also includes a sixth branch 88, one end of which is connected to the first control valve 61, and the other end of which is connected to one end of the heat exchanger circuit 40. The sixth branch 88 connects the third valve port c and one end of the heat exchanger circuit 40. If the first control valve 61 is connected to the second valve port b and the eighth valve port h, and also connected to the third valve port c and the ninth valve port i, then 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 heat from the motor 11 and ambient heat, which can be used for heating the crew compartment.

[0074] The heating circuit 50 includes a condenser 71, an electric heater 52, and a heater core 51. The electric heater 52 and the condenser 71 are connected in series. One end of the condenser 71 is selectively connected to a multi-port pipe 63 and one end of the heater core 51. The other end of the condenser 71 is connected to one end of the electric heater 52. The other end of the electric heater 52 is connected to the other end of the heater core 51 and the first control valve 61. The refrigerant of the air conditioning system 70 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 70, but also part of the heating circuit 50. Thus, when the air conditioning system 70 is running, the condenser 71 generates heat, which can be transferred to the battery heat exchange circuit 20 or the heater core 51 through the first control valve 61 and the second control valve 62a to heat the battery pack 21 or the passenger compartment, thereby making reasonable use of the heat generated by the condenser 71. Alternatively, the radiator circuit 30 and the condenser 71 can be connected in series via the first control valve 61 and the second control valve 62a to transfer heat to the radiator circuit 30 and dissipate the heat to the outside through the radiator 31, thereby cooling the condenser 71.

[0075] One end of the heater core 51 is connected to the second control valve 62a, and the other end of the heater core 51 is connected to the other end of the condenser 71. The condenser 71 dissipates heat into the coolant, and the coolant flows through the heater core 51, thereby dissipating heat into the passenger compartment and heating the passenger compartment.

[0076] The electric heater 52 is connected in series with the condenser 71. When the second control valve 62a is connected to both ends of the heating circuit 50, the electric heater 52 can heat the coolant in the heating circuit 50, so that the electric heater 52 can provide heating when the air conditioning system 70 is not running. The electric heater 52 can be a PTC heater.

[0077] The heating circuit 50 also includes a third water pump 53, which is located between one end of the condenser 71 and the second control valve 62a, and is connected in series with the condenser 71. The third water pump 53 can realize the circulation of coolant.

[0078] Referring to Figures 1, 8, and 9, the second control valve 62a is connected to one end of the condenser 71, and the multi-port pipe 63 is connected to one end of the heater core 51. The second control valve 62a includes: a thirteenth valve port, a fourteenth valve port, a fifteenth valve port, a sixteenth valve port, and a seventeenth valve port. The thirteenth valve port is "2a" in Figures 8 and 9, the fourteenth valve port is "2b" in Figures 8 and 9, the fifteenth valve port is "2c" in Figures 8 and 9, the sixteenth valve port is "2d" in Figures 8 and 9, and the seventeenth valve port is "2e" in Figures 8 and 9. For example, the thirteenth valve port 2a of the second control valve 62a is used to communicate with the heat exchange circuit 40 and the third valve port c of the first control valve 61, the fourteenth valve port 2b is used to communicate with the third branch 85, the fifteenth valve port 2c is used to communicate with the heating core 51 and the sixteenth valve port 2d, the sixteenth valve port 2d is used to communicate with the fifth valve port e and the sixth valve port f of the first control valve 61, and the seventeenth valve port 2e is used to communicate with the battery heat exchange circuit 20 and the fifth valve port e and the sixth valve port f of the first control valve 61.

[0079] In some embodiments, referring to FIG8, a rear-drive motor 11b integrated with the electronic control unit 12 is connected in series in the high-pressure heat exchange circuit 10. In this case, thermal management in dual-drive and four-drive modes can be achieved. Other arrangements in the high-pressure heat exchange circuit 10 are described in the above embodiments and will not be repeated here.

[0080] In some embodiments, referring to FIG9, the electronic control 12 includes a first electronic control 12a and a second electronic control 12b. A front drive motor 11a integrated with the first electronic control 12a and a rear drive motor 11b integrated with the second electronic control 12b are connected in series in the high-pressure heat exchange circuit 10. Here, the front drive motor 11a and the rear drive motor 11b are connected in parallel in the high-pressure heat exchange circuit 10. This allows for thermal management in four-wheel drive mode. Other arrangements in the high-pressure heat exchange circuit 10 are described in the above embodiments and will not be repeated here.

[0081] According to some embodiments of this application, the heat exchanger circuit 40 includes a heat exchanger 41, one end of which is connected to the first control valve 61 and one end of the battery heat exchange circuit 20, and the other end of which is connected to the first control valve 61. The air conditioning system 70 is also connected to the heat exchanger 41. The heating circuit 50 includes a condenser 71, an electric heater 52, and a warm air core 51, which are connected in series. The air conditioning system 70 includes a compressor 73 and an evaporator 72, which are connected in series. The heat exchanger 41 and evaporator 72 are connected in parallel and in series with the condenser 71. The refrigerant and coolant in the air conditioning system 70 exchange heat at the heat exchanger 41, allowing the refrigerant to absorb heat from the battery heat exchange circuit 20, 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 heat exchanger 41, and finally returns to the compressor 73. When the passenger compartment is cooled, the refrigerant absorbs heat from the passenger compartment at the evaporator 72, and the coolant flowing through the condenser 71 releases the heat to the heating circuit 50.

[0082] Furthermore, if the heat exchanger 41 is connected in parallel with the evaporator 72, the refrigerant can flow to the heat exchanger 41 to absorb heat after the condenser 71 releases heat. The heat absorbed by the refrigerant from the heat exchanger 41 can be transferred to the heating circuit 50 at the condenser 71 for heating the crew compartment; or, the refrigerant can flow to the evaporator 72 to absorb heat after the condenser 71 releases heat.

[0083] According to some embodiments of this application, the radiator circuit 30 includes a radiator 31, one end of which is connected to the first control valve 61 and one end of the high-pressure heat exchange circuit 10, and the other end of which is connected to the first control valve 61. Specifically, when the coolant flows through the radiator 31, if the temperature of the coolant is higher than that of the radiator 31, the radiator 31 dissipates heat to the outside; if the temperature of the coolant is lower than that of the radiator 31, the coolant absorbs heat from the radiator 31.

[0084] The battery heat exchange circuit 20 includes a battery pack 21 and a second liquid pump 22 (e.g., a second water pump 22), which are connected in series. With the battery pack 21 and the second water pump 22 connected in series, coolant can flow through the battery heat exchange circuit 20 driven by the second water pump 22. If the temperature of the coolant flowing through the battery heat exchange circuit 20 is higher than that of the battery pack 21, the coolant heats the battery pack 21; if the temperature of the coolant flowing through the battery heat exchange circuit 20 is lower than that of the battery pack 21, the coolant cools the battery pack 21.

[0085] The second water pump 22 can realize the circulation of coolant.

[0086] The high-pressure heat exchange circuit 10 also includes a first temperature sensor 14, which is connected in series with a first liquid pump 13 (e.g., a first water pump 13) and a motor 11. Specifically, the first temperature sensor 14 can monitor the temperature of the coolant, thereby controlling the opening degree of the first water pump 13 based on the coolant temperature, and thus controlling the flow rate of the coolant. For example, when the coolant temperature is high, the opening degree of the first water pump 13 can be increased.

[0087] It should be noted that, in this application, the coolant can be water or other liquids with cooling capabilities, and this application does not impose any restrictions on it.

[0088] According to some embodiments of this application, the heat exchanger circuit 40 includes a heat exchanger 41, one end of which is connected to a first control valve 61. The battery heat exchange circuit 20 includes a second water pump 22 and a battery pack 21, which are connected in series. One end of the second water pump 22 is connected to the first control valve 61. The battery pack 21 and the second water pump 22 are connected in series, and the second water pump 22 drives the coolant to circulate within the battery pack 21, thereby facilitating heat absorption or dissipation by the battery pack 21.

[0089] The thermal management system 100 also includes an overflow tank 81 and a four-way pipe 82. The four-way pipe 82 is connected to the radiator circuit 30, the first control valve 61, the high-pressure heat exchange circuit 10, and the overflow tank 81, respectively. The radiator 31 is connected to the first valve port and the high-pressure heat exchange circuit 10 through the four-way pipe 82. One port of the four-way pipe 82 is connected to one end of the radiator 31, another port of the four-way pipe 82 is connected to the overflow tank 81, yet another port of the four-way pipe 82 is connected to the first valve port, and yet another port of the four-way pipe 82 is connected to one end of the high-pressure heat exchange circuit 10.

[0090] The vehicle according to the second aspect of this application includes the thermal management system 100 described above.

[0091] The following describes six operating modes of the thermal management system 100 according to an embodiment of this application with reference to Figures 2-9.

[0092] Referring to Figure 2, the thermal management system 100 operates in mode one and has the following loop.

[0093] The circuit 1 is as follows: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second check valve 65 → First control valve 61 → Radiator 31.

[0094] The sixth valve port f is connected to the ninth valve port i, and the seventh valve port g is connected to the eighth valve port h. That is to say, the first control valve 61 and the first check 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-pressure components (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 to achieve cooling of the high-pressure components.

[0095] Loop 2: Second water pump 22 → Battery pack 21 → Shut-off valve 66 → Heat exchanger 41 → First control valve 61 → Second water pump 22.

[0096] When the second and fourth valve ports are connected, the battery heat exchange circuit 20 and the heat exchanger circuit 40 are connected in series. The heat exchanger 41 in the heat exchanger circuit 40 can absorb the heat from the battery pack 21, thereby cooling the battery pack 21.

[0097] Circuit 3: Condenser 71 → Electric heater 52 → First control valve 61 → Radiator 31 → First control valve 61 → Multi-port pipe 63 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0098] The sixth valve port f is connected to the ninth valve port i, the seventh valve port g is connected to the eighth valve port h, and the tenth valve port j is connected to the eleventh valve port k. That is, the fifth valve port e is connected to one end of the condenser 71. Then the condenser 71 is connected in parallel with the high-pressure heat exchange circuit 10 and in series with the radiator 31. The heat of the condenser 71 and the heat of the high-pressure device can be dissipated to the outside through the radiator 31.

[0099] Circuit 4: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0100] The eleventh valve port j and the twelfth valve port m are connected. The second control valve 62 is connected to both ends of the heating circuit 50. The condenser 71, electric heater 52, warm air core 51 and third water pump 53 are connected in series. The heat exchanger 41 absorbs the heat from the battery pack 21 and releases it to the air conditioning system 70. The condenser 71 can transfer this part of the heat to the heating circuit 50 for heating the crew cabin and improve energy utilization.

[0101] Referring to Figure 3, the thermal management system 100 operates in mode two and has the following loop.

[0102] The circuit is as follows: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second check valve 65 → Radiator 31.

[0103] Among them, the sixth valve port f and the ninth valve port i are connected, and the seventh valve port g and the eighth valve port h are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30 and the high-pressure heat exchange circuit 10, so that the waste heat generated by the motor 11 and the electronic control 12 can be dissipated to the outside through the radiator 31 to achieve cooling of the motor 11 and the electronic control 12.

[0104] Circuit 2: 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.

[0105] Among them, the first valve port a and the fourth valve port d are connected, and the seventh valve port g and the eighth valve port h are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30 and the battery heat exchange circuit 20. The coolant flows between the battery heat exchange circuit 20 and the radiator circuit 30, dissipating the heat of the battery to the outside through the radiator 31, thereby cooling the battery pack 21.

[0106] Specifically, circuit one and circuit two connect the battery heat exchange circuit 20 and the high-voltage heat exchange circuit 10 in parallel and then connect them in series with the radiator 31 to simultaneously cool the battery pack 21 and the motor 11.

[0107] Circuit 3: Radiator 31 → First control valve 61 → Second water pump 22 → Battery pack 21 → Multi-port pipe 63 → Second control valve 62 → Third water pump 53 → Condenser 71 → First control valve 61 → Radiator 31.

[0108] The first valve port and the fourth valve port are connected, and the seventh valve port and the eighth valve port are connected. 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. The coolant flows between the battery pack 21, the condenser 71 and the radiator 31, dissipating the heat of the battery pack 21 and the condenser 71 to the outside through the radiator 31, thereby cooling the battery pack 21 and the condenser 71.

[0109] Circuit 4: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0110] The eleventh valve port k and the twelfth valve port m are connected. The second control valve 62 is connected to both ends of the heating circuit 50. The condenser 71, electric heater 52, warm air core 51 and third water pump 53 are connected in series. The heat exchanger 41 absorbs the heat from the battery pack 21 and releases it to the air conditioning system 70. The condenser 71 can transfer this part of the heat to the heating circuit 50 for heating the crew cabin and improve energy utilization.

[0111] One of loops three and four is connected according to actual needs.

[0112] Referring to Figure 4, the thermal management system 100 operates in mode three and has the following loops.

[0113] The circuit is as follows: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Heat exchanger 41 → First control valve 61 → Radiator 31.

[0114] In this configuration, the ninth valve port i is connected to the third valve port c, and the second valve port b is connected to the eighth valve port h. 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. The radiator 31, the first water pump 13, the electrical control 12, the motor 11, and the heat exchanger 41 are connected in series. Driven by the first water pump 13, the coolant flows through the radiator 31, the electrical control 12, and the motor 11 in sequence, and absorbs the heat from the radiator 31 (ambient heat) and the motor 11. The absorbed heat is then transferred to the refrigerant flowing in the air conditioning system 70 through the heat exchanger 41.

[0115] Circuit 2: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0116] Among them, the tenth valve port j and the eleventh valve port k are connected, 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 from the motor 11 and the ambient heat and releases it to the air conditioning system 70, and the condenser 71 can transfer this part of the heat to the heating circuit 50 for heating the passenger compartment and improving energy utilization.

[0117] Circuit 3: 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.

[0118] The first control valve 61 connects to the fourth valve port d and the seventh valve port g, and the second control valve 62 connects to the tenth valve port j and the eleventh valve port k. The battery heat exchange circuit 20 and the condenser 71 are connected in series. The condenser 71 can use the heat from the motor 11 and ambient heat to heat the battery pack 21, ensuring the normal operation of the battery pack 21, fully utilizing the heat from the high-pressure heat exchange circuit 10 and the environment, and improving energy efficiency.

[0119] Circuit 4: Battery pack 21 → First one-way valve 64 → Second one-way valve 65 → First control valve 61 → Second water pump 22 → Battery pack 21.

[0120] The fourth valve port d and the seventh valve port g are connected. 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 achieve uniform temperature of the battery pack 21.

[0121] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0122] When loop one, loop two, and loop three are all connected, the water source heat pump absorbs heat from the radiator 31 and motor 11 to heat the passenger compartment and battery pack 21. When loop one and loop two are connected, the water source heat pump absorbs heat from the radiator 31 and motor 11 to heat the passenger compartment. When loop one and loop three are connected, the water source heat pump absorbs heat from the radiator 31 and motor 11 to heat the battery pack 21.

[0123] Referring to Figure 5, the thermal management system 100 operates in mode four and has the following loops.

[0124] Among them, loop one is: first water pump 13 → electrical control 12 → motor 11 → first control valve 61 → heat exchanger 41 → first control valve 61 → first water pump 13.

[0125] In this configuration, the ninth valve port i is connected to the third valve port c, and the second valve port b is connected to the first valve port a. 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. The first water pump 13, the electrical control 12, the motor 11 and the heat exchanger 41 are connected in series. Driven by the first water pump 13, the coolant flows through the electrical control 12 and the motor 11 in sequence, and absorbs the heat from the motor 11. The absorbed heat is then transferred to the refrigerant flowing in the air conditioning system 70 through the heat exchanger 41.

[0126] Circuit 2: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0127] Among them, the tenth valve port j and the eleventh valve port k are connected, 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 70, and the condenser 71 can transfer this part of the heat to the heating circuit 50 for the heating of the passenger compartment, thereby improving the energy utilization rate.

[0128] Circuit 3: 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.

[0129] The first control valve 61 connects the fourth valve port d and the seventh valve port g, and the second control valve 62 connects the tenth valve port j and the eleventh valve port k. The battery heat exchange circuit 20 and the condenser 71 are connected in series. The condenser 71 can use the heat from the motor 11 to heat the battery pack 21, ensuring the normal operation of the battery pack 21, making full use of the heat from the high-pressure heat exchange circuit 10 and the environment, and improving the energy utilization rate.

[0130] Circuit 4: Battery pack 21 → First one-way valve 64 → Second one-way valve 65 → First control valve 61 → Second water pump 22 → Battery pack 21.

[0131] The fourth valve port d and the seventh valve port g are connected. 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 achieve uniform temperature of the battery pack 21.

[0132] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0133] When loop one, loop two, and loop three are all connected, the water source heat pump can absorb heat from motor 11 to heat the passenger compartment and battery pack 21. When loop one and loop two are connected, the water source heat pump can absorb heat from motor 11 to heat the passenger compartment. When loop one and loop three are connected, the water source heat pump can absorb heat from motor 11 to heat battery pack 21.

[0134] Referring to Figure 6, the thermal management system 100 operates in mode five and has the following loop.

[0135] Among them, circuit one: first water pump 13 → electrical control 12 → motor 11 → first control valve 61 → first water pump 13.

[0136] Among them, the first valve port a is connected to the ninth valve port i, that is, the first control valve 61 is connected to both ends of the high-pressure hot water exchange circuit to realize the heat storage of the motor 11.

[0137] Circuit 2: 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.

[0138] The first control valve 61 connects the fourth and seventh valve ports, and the second control valve 62 connects the tenth and eleventh valve ports. The battery heat exchange circuit 20 and the condenser 71 are connected in series. When the compressor 73 is working, the refrigerant releases heat in the condenser 71. After the coolant and refrigerant exchange heat 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.

[0139] Circuit 3: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0140] Among them, the eleventh valve port k and the twelfth valve port m are connected, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the heater core 51 and the third water pump 53 are connected in series, the compressor 73 works, the refrigerant releases heat in the condenser 71, the coolant and the refrigerant exchange heat at the condenser 71, and the coolant flows out from the condenser 71 and flows to the heater core 51, thereby realizing the heating of the crew cabin.

[0141] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0142] Circuit 4: Battery pack 21 → First one-way valve 64 → Second one-way valve 65 → First control valve 61 → Second water pump 22 → Battery pack 21.

[0143] The fourth and seventh valve ports are connected, 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 within the battery heat exchange circuit 20 to achieve uniform temperature distribution in the battery pack 21. If the battery pack 21 does not require heating, circuit four can be connected. Circuit four and circuit three can be connected simultaneously, but circuit four and circuit two cannot be connected simultaneously.

[0144] Circuit 5: Battery pack 21 → shut-off valve 66 → heat exchanger 41 → first control valve 61 → second water pump 22 → battery pack 21.

[0145] That is, when the shut-off valve 66 is opened, the second valve port b is connected to the sixth valve port f. When the battery pack 21 is overheated, the battery heat exchange circuit 20 and the heat exchanger 41 can be connected. The coolant flowing out of the battery pack 21 can flow to the heat exchanger 41, and the heat exchanger 41 absorbs the heat of the battery pack 21 to cool the battery pack 21.

[0146] Referring to Figure 7, the thermal management system 100 operates in mode six and has the following loop.

[0147] Among them, circuit one is: first water pump 13 → electrical control 12 → motor 11 → first control valve 61 → second water pump 22 → battery pack 21 → multi-port pipe 63 → first one-way valve 64 → second one-way valve 65 → first control valve 61 → first water pump 13.

[0148] Among them, the first valve port a is connected to the seventh valve port g, and the fourth valve port d is connected to the ninth valve port i. That is, the first control valve 61, the first check valve 64 and the second check valve 65 are connected in series to the high-pressure hot water exchange circuit and the battery heat exchange circuit 20. The heat generated by the motor 11 can be used to heat the battery pack 21.

[0149] Circuit 2: First water pump 13 → Electrical 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.

[0150] The first valve port a is connected to the seventh valve port g, the fourth valve port d is connected to the ninth valve port i, and the second control valve 62 is connected to the tenth valve port j and the eleventh valve port k, connecting the heat exchange circuit of motor 11, the heat exchange circuit of battery 20, and the condenser 71 in series. When compressor 73 operates, the refrigerant releases heat in condenser 71. The coolant exchanges heat with the refrigerant at condenser 71, and the coolant flows out of condenser 71 and into the battery heat exchange circuit 20, thereby heating battery pack 21. If the temperature of motor 11 is lower than the temperature of the coolant, the coolant heats motor 11, achieving preheating of motor 11. If the temperature of motor 11 is higher than the temperature of the coolant, the coolant absorbs the heat from motor 11 to heat battery pack 21.

[0151] Circuit 3: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0152] Among them, the eleventh valve port k and the twelfth valve port m are connected, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the heater core 51 and the third water pump 53 are connected in series, the compressor 73 works, the refrigerant releases heat in the condenser 71, the coolant and the refrigerant exchange heat at the condenser 71, and the coolant flows out from the condenser 71 and flows to the heater core 51, thereby realizing the heating of the crew cabin.

[0153] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0154] The working mode of the thermal management system 100 shown in Figures 8 and 9 can be referred to the above description. The difference is that the functions of the second control valve 62 and the shut-off valve 66 are replaced by the second control valve 62a, which will not be described again here.

[0155] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0156] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0157] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system (100), characterized in that, include: Air conditioning system (70) and heating circuit (50); A 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 exchanger 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 exchanger circuit (40). The air conditioning system (70) exchanges heat with the heat exchanger circuit (40) and the heating circuit (50). A multi-port pipe (63), at least two ends of which are connected to the first control valve (61), and the other end of which is connected to the battery heat exchange circuit (20); and A condenser (71) is selectively connected at one end to another end of the multi-port pipe (63), and the other end of the condenser (71) is connected to the first control valve (61).

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

3. The thermal management system (100) according to claim 2, characterized in that, The multi-port (63) further includes: a third port (1c) and a fourth port (1d); 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 port (1c) and the other end being selectively connected to one end of the condenser (71), and one end of the fourth branch (86) being connected to the fourth port (1d) and the other end being connected to the first control valve (61).

4. The thermal management system (100) according to claim 3, characterized in that, The fourth branch (86) is provided with a first check valve (64) and a second check valve (65). One end of the first check valve (64) is connected to the fourth port (1d) and the other end is connected to one end of the second check valve (65). The other end of the second check valve (65) is connected to the first control valve (61).

5. The thermal management system (100) according to claim 4, characterized in that, Also includes: The fifth branch (87) is connected at one end to the first control valve (61) and at the other end to one end of the second check valve (65).

6. The thermal management system (100) according to claim 1, characterized in that, Also includes: The sixth branch (88) is connected at one end to the first control valve (61) and at the other end to one end of the heat exchanger circuit (40).

7. The thermal management system (100) according to any one of claims 1 to 6, characterized in that, Also includes: A shut-off valve (66) is provided, one end of which is connected to one end of the battery heat exchange circuit (20), and the other end of which is connected to one end of the heat exchanger circuit (40).

8. The thermal management system (100) according to any one of claims 1 to 7, characterized in that, The heating circuit (50) includes: a condenser (71), an electric heater (52) and a heating 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-port pipe (63) and one end of the heating core (51). The other end of the condenser (71) is connected to one end of the electric heater (52). The other end of the electric heater (52) is connected to the other end of the heating core (51) and the first control valve (61).

9. The thermal management system (100) according to claim 7, characterized in that, Also includes: The second control valve (62) has one end connected to one end of the condenser (71), another end connected to the multi-port pipe (63), and yet another end connected to one end of the heater core (51).

10. The thermal management system (100) according to any one of claims 1 to 6, characterized in that, Also includes: The second control valve (62a) is connected to one end of the battery heat exchange circuit (20) and to one end of the heat exchanger circuit (40).

11. The thermal management system (100) according to claim 10, characterized in that, The heating circuit (50) includes: a condenser (71), an electric heater (52) and a heating 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-port pipe (63) and one end of the heating core (51). The other end of the condenser (71) is connected to one end of the electric heater (52). The other end of the electric heater (52) is connected to the other end of the heating core (51) and the first control valve (61).

12. The thermal management system (100) according to claim 11, characterized in that, The second control valve (62a) is connected to one end of the condenser (71), and the multi-port pipe (63) is connected to one end of the heater core (51).

13. The thermal management system (100) according to any one of claims 1 to 12, characterized in that, The heat exchanger circuit (40) includes a heat exchanger (41), one end of which is connected to the first control valve (61) and one end of the battery heat exchange circuit (20), the other end of which is connected to the first control valve (61), and the air conditioning system (70) is connected to the heat exchanger (41).

14. The thermal management system (100) according to claim 13, characterized in that, The heating circuit (50) includes a condenser (71), an electric heater (52), and a warm air core (51), wherein the electric heater (52) and the warm air core (51) are connected in series.

15. The thermal management system (100) according to claim 14, characterized in that, The air conditioning system (70) includes 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 and in series with the condenser (71).

16. The thermal management system (100) according to any one of claims 1 to 15, characterized in that, The radiator circuit (30) includes a radiator (31), one end of which is connected to the first control valve (61) and one end of the high-pressure heat exchange circuit (10), and the other end of which is connected to the first control valve (61).

17. The thermal management system (100) according to any one of claims 1 to 16, characterized in that, The high-pressure heat exchange circuit (10) includes a motor (11), an electrical control (12), and a first water pump (13), wherein the motor (11), the electrical control (12), and the first water pump (13) are connected in series.

18. The thermal management system (100) according to any one of claims 1 to 17, characterized in that, The battery heat exchange circuit (20) includes a second water pump (22) and a battery pack (21), wherein the second water pump (22) and the battery pack (21) are connected in series, and one end of the second water pump (22) is connected to the first control valve (61).

19. A vehicle, characterized in that, include: The thermal management system (100) according to any one of claims 1 to 18.

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