Cooling system for vehicle and vehicle

Abstract

The cooling system comprises a first loop, a second loop, a vehicle-mounted power supply system and a motor controller, a first heat exchanger and a second heat exchanger are arranged in the first loop, the first heat exchanger is used for exchanging heat with external airflow, and the second heat exchanger is used for exchanging heat with airflow in a passenger compartment; a first radiator is arranged in the second loop and located on the upstream side of the first heat exchanger in the airflow flowing direction. At least one of the vehicle-mounted power supply system and the motor controller is provided with a first cooling flow path, and the first cooling flow path is provided in the second circuit. According to the cooling system provided by the utility model, by arranging the second loop, the cooling requirements of the vehicle-mounted power supply system and the motor controller on the low-temperature cooling liquid can be met, and at least one of the vehicle-mounted power supply system and the motor controller can be effectively cooled, so that the efficiency and the reliability of the cooling system are improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a cooling system for a vehicle and the vehicle. Background Art

[0002] With the continuous development of new energy vehicle technology, the cooling system, as an important part of vehicle thermal management, plays a vital role in ensuring efficient and stable operation of the vehicle. Especially in new energy hybrid models, due to the combination of traditional engine and motor drive system, the heat load is greater and the cabin temperature control is more complicated.

[0003] The existing cooling system of new energy hybrid vehicles usually adopts a multi-layer radiator structure to dissipate heat for key components such as the on-board power system and motor controller through different circuits. However, in high temperature environments or low-speed and long idling conditions, the problem of hot air reflux in the cabin is serious, which increases the inlet temperature of the radiator, thereby affecting the heat dissipation effect. When the passenger compartment cooling and battery cooling are carried out at the same time, the load of the condenser increases, and the inlet air passing through the condenser will be heated by the condenser, thereby increasing the air temperature entering the medium-temperature radiator. As the temperature difference between the medium-temperature radiator and the high-temperature radiator becomes smaller, the heat exchange efficiency decreases, resulting in a high water temperature. In addition, the on-board power system and the motor controller require a low inlet water temperature, and the medium-temperature radiator cannot meet the temperature control requirements of the on-board power system and the motor controller. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a cooling system for a vehicle. According to the cooling system of the utility model, by setting a second circuit, the cooling requirements of the vehicle power system and the motor controller for low-temperature coolant can be met, and at least one of the vehicle power system and the motor controller can be effectively cooled, thereby improving the efficiency and reliability of the cooling system.

[0005] The utility model also provides a vehicle with the cooling system.

[0006] According to the utility model, a cooling system is used for a vehicle, and the cooling system includes: a first circuit, a first heat exchanger and a second heat exchanger are arranged in the first circuit, the first heat exchanger is arranged in the engine compartment and exchanges heat with the external airflow, and the second heat exchanger is used to exchange heat with the airflow in the passenger compartment; a second circuit, a first radiator is arranged in the second circuit, the first radiator is arranged in the engine compartment and is located on the upstream side of the first heat exchanger in the airflow direction; an on-board power supply system and a motor controller, at least one of the on-board power supply system and the motor controller is provided with a first cooling flow path, and the first cooling flow path is arranged in the second circuit.

[0007] According to the cooling system of the utility model, by setting a first circuit, a first heat exchanger and a second heat exchanger are set in the first circuit, the first heat exchanger is located in the cabin and is used to exchange heat with the external airflow to achieve heat transfer, and the heat generated in the cabin can be effectively dissipated to the external environment; the second heat exchanger is used to exchange heat with the airflow in the passenger compartment to adjust the temperature in the passenger compartment and provide a comfortable riding environment. By setting a second circuit, a first radiator is set in the second circuit, the first radiator can dissipate heat and cool the coolant in the second circuit, and the first radiator is located on the upstream side of the first heat exchanger in the airflow flow direction, so that the first radiator will not reduce the heat dissipation efficiency due to the heating of the airflow passing through the first heat exchanger, and the first radiator can more effectively reduce the temperature of the coolant in the second circuit, so that the coolant in the second circuit is maintained at a low temperature. By setting a first cooling flow path in at least one of the on-board power system and the motor controller, and the first cooling flow path is set in the second circuit, since the coolant in the second circuit is maintained at a low temperature, the cooling requirements of the on-board power system and the motor controller for the low-temperature coolant can be met, and at least one of the on-board power system and the motor controller can be effectively cooled, thereby improving the efficiency and reliability of the cooling system.

[0008] According to some embodiments of the utility model, the vehicle power system is provided with a vehicle power system cooling flow path, and the motor controller is provided with a motor controller cooling flow path. The vehicle power system cooling flow path and the motor controller cooling flow path are respectively configured as the first cooling flow path, and the vehicle power system cooling flow path and the motor controller cooling flow path are arranged in series or in parallel with each other in the second circuit and are respectively located on the downstream side of the first radiator.

[0009] According to some embodiments of the utility model, the cooling system also includes: a third circuit, in which a second radiator is arranged; a water-cooled intercooler and a transmission oil cooler, in which at least one of the water-cooled intercooler and the transmission oil cooler is provided with a second cooling flow path, and the second cooling flow path is arranged in the third circuit.

[0010] According to some embodiments of the present invention, the cooling system further comprises: a first expansion kettle, wherein the first expansion kettle is connected to the second circuit and the third circuit respectively.

[0011] According to some embodiments of the utility model, the cooling system also includes: a fourth circuit, a third radiator is arranged in the fourth circuit, and the third radiator is located on the downstream side of the first heat exchanger in the airflow direction; an engine, the engine is provided with a third cooling flow path, and the third cooling flow path is arranged in the fourth circuit.

[0012] According to some embodiments of the present utility model, the cooling system further includes: a second expansion kettle, wherein the second expansion kettle is connected to the fourth circuit.

[0013] According to some embodiments of the utility model, the cooling system also includes: a fifth circuit, which is connected to the first expansion kettle; a battery cooler, which is provided with a fourth cooling flow path and a refrigerant flow path, the fourth cooling flow path is arranged in the fifth circuit, and the refrigerant flow path is connected to the first circuit.

[0014] According to some embodiments of the present utility model, the cooling system also includes: a plate heat exchanger, in which a first heat exchange channel and a second heat exchange channel that can exchange heat with each other are arranged, the first heat exchange channel is arranged in the fourth circuit, and the second heat exchange channel is arranged in the fifth circuit.

[0015] According to some embodiments of the present invention, the cooling system further includes: a pump body, which is structured into multiple pieces and is respectively arranged in the second circuit, the third circuit, the fourth circuit and the fifth circuit.

[0016] The vehicle according to the present utility model is briefly described below.

[0017] The vehicle according to the utility model includes the cooling system described in any one of the above embodiments. Since the vehicle according to the utility model includes the cooling system described in any one of the above embodiments, the vehicle according to the utility model can effectively cool the on-board power system and the motor controller through the cooling system, so that the vehicle can run efficiently and stably, and the performance and reliability of the vehicle are improved.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a layout diagram of a cooling system according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a cooling system according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] Cooling system 1;

[0024] A first circuit 11, a first heat exchanger 111, and a second heat exchanger 112;

[0025] The second circuit 12, the first radiator 121, the vehicle power system 122, the motor controller 123;

[0026] The third circuit 13 includes a second radiator 131, a water-cooled intercooler 132, and a transmission oil cooler 133;

[0027] A first expansion kettle 14;

[0028] Fourth circuit 15, third radiator 151, engine 152, cylinder head 1521, cylinder block 1522;

[0029] A second expansion kettle 16;

[0030] Fifth circuit 17, battery cooler 171;

[0031] Plate heat exchanger 18, pump body 19. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the related art, in high temperature environments or low speed and long idle conditions, the problem of hot air reflux in the cabin is serious, which increases the air inlet temperature of the radiator, thereby affecting the heat dissipation effect. When the passenger compartment cooling and battery cooling are carried out at the same time, the load of the condenser increases, and the air inlet passing through the condenser will be heated by the condenser, thereby increasing the air temperature entering the medium-temperature radiator. As the temperature difference between the medium-temperature radiator and the high-temperature radiator becomes smaller, the heat exchange efficiency decreases, resulting in a high water temperature. In addition, the on-board power system and the motor controller require a low water inlet temperature, and the medium-temperature radiator cannot meet the temperature control requirements of the on-board power system and the motor controller.

[0034] Reference below Figure 1 and Figure 2 A cooling system 1 according to an embodiment of the present invention is described.

[0035] like Figure 1 and Figure 2As shown, according to the utility model, a cooling system 1 is used for a vehicle, and the cooling system 1 includes a first circuit 11, a second circuit 12, an on-board power supply system 122 and a motor controller 123. A first heat exchanger 111 and a second heat exchanger 112 are arranged in the first circuit 11. The first heat exchanger 111 is arranged in the engine compartment and exchanges heat with the external airflow, and the second heat exchanger 112 is used to exchange heat with the airflow in the passenger compartment; a first radiator 121 is arranged in the second circuit 12, and the first radiator 121 is arranged in the engine compartment and is located on the upstream side of the first heat exchanger 111 in the airflow flow direction; at least one of the on-board power supply system 122 and the motor controller 123 is provided with a first cooling flow path, and the first cooling flow path is arranged in the second circuit 12.

[0036] According to the cooling system 1 of the utility model, by setting the first circuit 11, the first heat exchanger 111 and the second heat exchanger 112 are set in the first circuit 11. The first heat exchanger 111 is located in the cabin and is used to exchange heat with the external airflow to achieve heat transfer, which can effectively dissipate the heat generated in the cabin to the external environment; the second heat exchanger 112 is used to exchange heat with the airflow in the passenger compartment to adjust the temperature in the passenger compartment and provide a comfortable riding environment. By setting the second circuit 12, the first radiator 121 is set in the second circuit 12. The first radiator 121 can dissipate heat and cool the coolant in the second circuit 12, and the first radiator 121 is located on the upstream side of the first heat exchanger 111 in the airflow flow direction, so that the first radiator 121 will not reduce the heat dissipation efficiency due to the heating of the airflow passing through the first heat exchanger 111, and the first radiator 121 can more effectively reduce the temperature of the coolant in the second circuit 12, so that the coolant in the second circuit 12 is maintained at a low temperature. By setting a first cooling flow path in at least one of the on-board power system 122 and the motor controller 123, and the first cooling flow path is set in the second circuit 12, since the coolant in the second circuit 12 is maintained at a low temperature, the cooling requirements of the on-board power system 122 and the motor controller 123 for the low-temperature coolant can be met, and at least one of the on-board power system 122 and the motor controller 123 can be effectively cooled, thereby improving the efficiency and reliability of the cooling system 1.

[0037] Therefore, according to the cooling system 1 of the present invention, by setting up the second circuit 12, the cooling requirements of the on-board power system 122 and the motor controller 123 for the low-temperature coolant can be met, and at least one of the on-board power system 122 and the motor controller 123 can be effectively cooled, thereby improving the efficiency and reliability of the cooling system 1.

[0038] According to some embodiments of the present invention, Figure 1As shown, the vehicle power system 122 is provided with a vehicle power system 122 cooling flow path, and the motor controller 123 is provided with a motor controller 123 cooling flow path. The vehicle power system 122 cooling flow path and the motor controller 123 cooling flow path are respectively configured as first cooling flow paths, and the vehicle power system 122 cooling flow path and the motor controller 123 cooling flow path are arranged in series or in parallel with each other in the second circuit 12 and are respectively located on the downstream side of the first radiator 121. The vehicle power system 122 cooling flow path is used to provide coolant for the vehicle power system 122 to meet the cooling requirements of the vehicle power system 122. The motor controller 123 cooling flow path is used to provide coolant for the motor controller 123 to meet the cooling requirements of the motor controller 123. The vehicle power system 122 cooling flow path and the motor controller 123 cooling flow path are both configured as first cooling flow paths, and the vehicle power system 122 cooling flow path and the motor controller 123 cooling flow path are directly connected to the second circuit 12, and are cooled by the coolant in the second circuit 12. The cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123 can be connected in series or in parallel. When the cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123 are connected in series, the coolant first passes through the cooling flow path of the vehicle power system 122, and then passes through the cooling flow path of the motor controller 123, or vice versa. When the cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123 are connected in parallel, the coolant flows into the cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123 respectively, and then returns to the second circuit 12 respectively. Whether in series or in parallel, the cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123 are located on the downstream side of the first radiator 121, so that the coolant has passed through the first radiator 121 for cooling before flowing through the cooling flow path of the vehicle power system 122 and the cooling flow path of the motor controller 123, and the coolant in the second circuit 12 can cool the vehicle power system 122 and the motor controller 123 more effectively.

[0039] According to some embodiments of the present invention, Figure 1As shown, the cooling system 1 also includes a third circuit 13, a water-cooled intercooler 132 and a transmission oil cooler 133. A second radiator 131 is provided in the third circuit 13; at least one of the water-cooled intercooler 132 and the transmission oil cooler 133 is provided with a second cooling flow path, and the second cooling flow path is provided in the third circuit 13. By providing the third circuit 13, the space in the cabin can be reasonably utilized to meet the cooling requirements of the heat-generating components. A second radiator 131 is provided in the third circuit 13, and the second radiator 131 can dissipate heat and cool down the coolant in the third circuit 13, so that the coolant remains at a low temperature, thereby effectively cooling the components connected to the third circuit 13. In order to meet the cooling requirements of the water-cooled intercooler 132 and the transmission oil cooler 133, at least one of the water-cooled intercooler 132 and the transmission oil cooler 133 is provided with a second cooling flow path, and the second cooling flow path is arranged in the third circuit 13. After the coolant in the third circuit 13 flows through the second radiator 131 for cooling, it will enter the second cooling flow path, and then cool at least one of the water-cooled intercooler 132 and the transmission oil cooler 133.

[0040] According to some embodiments of the present invention, Figure 1 As shown, the cooling system 1 also includes a first expansion kettle 14, which is connected to the second circuit 12 and the third circuit 13 respectively. The first expansion kettle 14 plays the role of storing liquid, replenishing water, degassing and maintaining pressure in the cooling system 1. The first expansion kettle 14 can store the coolant in the cooling system 1. When the coolant is reduced due to evaporation or leakage, it can be replenished through the first expansion kettle 14. The first expansion kettle 14 is connected to the second circuit 12, so that the supply of coolant in the second circuit 12 is sufficient and the pressure is stable, so as to achieve effective cooling of components such as the on-board power system 122 and the motor controller 123. Similarly, the first expansion kettle 14 is connected to the third circuit 13, so that the supply of coolant in the third circuit 13 is sufficient and the pressure is stable, so as to maintain the cooling effect of components such as the water-cooled intercooler 132 and the transmission oil cooler 133.

[0041] According to some embodiments of the present invention, Figure 1 and Figure 2As shown, the cooling system 1 also includes a fourth circuit 15 and an engine 152. A third radiator 151 is provided in the fourth circuit 15. The third radiator 151 is located on the downstream side of the first heat exchanger 111 in the airflow direction. The engine 152 is provided with a third cooling flow path, which is provided in the fourth circuit 15. By providing the fourth circuit 15, the fourth circuit 15 is provided with a third radiator 151. The third radiator 151 is used to dissipate heat and cool the coolant in the fourth circuit 15. The fourth circuit 15 is used to cool the engine 152. In order to optimize the center of gravity distribution of the vehicle to improve the vehicle handling performance, the engine 152 is usually closer to the rear of the vehicle relative to the first heat exchanger 111. Therefore, by arranging the third radiator 151 on the downstream side of the first heat exchanger 111 in the airflow direction, the third radiator 151 can be more effectively used to cool and dissipate heat for the engine 152. In order to meet the cooling requirements of the engine 152 , the engine 152 is provided with a third cooling flow path, and the third cooling flow path is arranged in the fourth circuit 15 . After the coolant in the fourth circuit 15 flows through the third radiator 151 for cooling, it will enter the third cooling flow path, thereby cooling the engine 152 .

[0042] According to some embodiments of the present invention, Figure 1 As shown, the cooling system 1 also includes a second expansion kettle 16, and the second expansion kettle 16 is connected to the fourth circuit 15. By providing the second expansion kettle 16, the second expansion kettle 16 plays the role of storing liquid, replenishing water, degassing and maintaining pressure in the cooling system 1. The second expansion kettle 16 can store the coolant in the cooling system 1. When the coolant is reduced due to evaporation or leakage, it can be replenished through the second expansion kettle 16 to achieve the normal operation of the cooling system 1. By connecting the second expansion kettle 16 with the fourth circuit 15, the supply and pressure of the coolant in the fourth circuit 15 are stabilized. No matter how much heat the engine 152 generates during operation, the cooling system 1 can provide a continuous and stable cooling effect for the engine 152 through the cooperation of the fourth circuit 15 and the second expansion kettle 16.

[0043] According to some embodiments of the present invention, Figure 1As shown, the engine 152 includes a cylinder head 1521 and a cylinder body 1522. The cylinder head 1521 is arranged on the cylinder body 1522. A combustion chamber is formed in the cylinder body 1522. The cylinder head 1521 is used to close the combustion chamber. During the operation of the engine 152, the combustion chamber is sealed by the cylinder head 1521, so that the fuel is efficiently burned inside the combustion chamber, while reducing the loss of heat and energy. The existence of the cylinder head 1521 also helps to improve the rigidity of the entire engine 152, reduce noise, and improve the thermal efficiency of the engine 152. In addition, the engine 152 cooperates with the fourth circuit 15 in the cooling system 1, so that the engine 152 can maintain a suitable operating temperature through effective cooling under long-term high-load operation, thereby extending the service life of the engine 152 and maintaining the good performance of the engine 152.

[0044] According to some embodiments of the present invention, Figure 1 As shown, the cooling system 1 also includes a fifth circuit 17 and a battery cooler 171, and the fifth circuit 17 is connected to the first expansion kettle 14; the battery cooler 171 is provided with a fourth cooling flow path and a refrigerant flow path, and the fourth cooling flow path is provided in the fifth circuit 17, and the refrigerant flow path is connected to the first circuit 11. By providing the fifth circuit 17, the fifth circuit 17 is connected to the first expansion kettle 14, and the coolant in the fifth circuit 17 can be replenished through the first expansion kettle 14 to achieve sufficient supply of coolant. The battery cooler 171 is provided to meet the cooling requirements of the battery module. The battery cooler 171 is used to maintain the power battery at an appropriate operating temperature, so that the discharge performance of the power battery reaches the best state. The battery cooler 171 is provided with a fourth cooling flow path and a refrigerant flow path. The fourth cooling flow path is provided in the fifth circuit 17, and the coolant flows through the battery cooler 171 through the fifth circuit 17 to cool the battery cooler 171. The refrigerant flow path is connected to the first loop 11 , so that the battery cooler 171 can perform heat exchange with the refrigerant in the first loop 11 to better cool the battery module.

[0045] According to some embodiments of the present invention, Figure 1As shown, the cooling system 1 also includes a plate heat exchanger 18, and a first heat exchange channel and a second heat exchange channel that can exchange heat with each other are arranged in the plate heat exchanger 18. The first heat exchange channel is arranged in the fourth loop 15, and the second heat exchange channel is arranged in the fifth loop 17. By arranging the plate heat exchanger 18, the plate heat exchanger 18 is provided with a first heat exchange channel and a second heat exchange channel that can exchange heat with each other, so that two coolants of different temperatures can flow in the first heat exchange channel and the second heat exchange channel respectively to achieve heat exchange. The first heat exchange channel is arranged in the fourth loop 15, and the coolant in the fourth loop 15 will flow through the first heat exchange channel. The coolant in the first heat exchange channel can exchange heat with the coolant in the second heat exchange channel. The second heat exchange channel is arranged in the fifth loop 17, and the fifth loop 17 carries the coolant from the engine 152. When the coolant flows through the second heat exchange channel, the coolant will exchange heat with the coolant in the first heat exchange channel, thereby reducing the temperature of the coolant in the first heat exchange channel, so that the battery cooler 171 can effectively cool the battery module.

[0046] According to some embodiments of the present invention, Figure 1 As shown, the cooling system 1 also includes a pump body 19, which is constructed in multiple configurations and is respectively arranged in the second circuit 12, the third circuit 13, the fourth circuit 15 and the fifth circuit 17. The pump body 19 is used to generate power to make the coolant flow in the circuit. By arranging an independent pump body 19 in each circuit, the cooling system 1 can achieve more accurate and independent flow control. Each pump body 19 can be independently adjusted according to the cooling demand of the circuit in which it is located, so that the flow speed and flow rate of the coolant in different circuits reach the optimal state, which helps to improve the cooling efficiency, reduce energy loss, and extend the service life of the cooling system 1. Specifically, the second circuit 12, the third circuit 13, the fourth circuit 15 and the fifth circuit 17 are respectively provided with a pump body 19, so that the second circuit 12, the third circuit 13, the fourth circuit 15 and the fifth circuit 17 operate independently, and each pump body 19 can independently generate a driving force to drive the coolant to flow in its respective circuit, thereby achieving accurate cooling of different components.

[0047] The vehicle according to the present utility model is briefly described below.

[0048] The vehicle according to the utility model includes the cooling system 1 in any one of the above embodiments. Since the vehicle according to the utility model includes the cooling system 1 in any one of the above embodiments, the vehicle according to the utility model can achieve effective cooling of the on-board power supply system 122 and the motor controller 123 through the cooling system 1, so that the vehicle can operate efficiently and stably, and the performance and reliability of the vehicle are improved.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0050] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0051] In the description of the present invention, "plurality" means two or more.

[0052] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0053] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A cooling system for a vehicle, characterized in that: include: A first circuit (11), wherein a first heat exchanger (111) and a second heat exchanger (112) are arranged in the first circuit (11), the first heat exchanger (111) being arranged in the cabin and exchanging heat with external airflow, and the second heat exchanger (112) being used to exchange heat with airflow in the passenger cabin; a second circuit (12), wherein a first radiator (121) is arranged in the second circuit (12), and the first radiator (121) is arranged in the cabin and located on the upstream side of the first heat exchanger (111) in the airflow direction; An on-board power supply system (122) and a motor controller (123), wherein at least one of the on-board power supply system (122) and the motor controller (123) is provided with a first cooling flow path, and the first cooling flow path is provided in the second circuit (12).

2. The cooling system according to claim 1, characterized in that: The on-board power supply system (122) is provided with an on-board power supply system (122) cooling flow path, and the motor controller (123) is provided with a motor controller (123) cooling flow path. The on-board power supply system (122) cooling flow path and the motor controller (123) cooling flow path are respectively configured as the first cooling flow path. The on-board power supply system (122) cooling flow path and the motor controller (123) cooling flow path are arranged in series or in parallel with each other in the second circuit (12) and are respectively located on the downstream side of the first radiator (121).

3. The cooling system according to claim 1, characterized in that: Also includes: A third circuit (13), wherein a second radiator (131) is arranged in the third circuit (13); A water-cooled intercooler (132) and a transmission oil cooler (133), at least one of the water-cooled intercooler (132) and the transmission oil cooler (133) being provided with a second cooling flow path, and the second cooling flow path being provided in the third circuit (13).

4. The cooling system according to claim 3, characterized in that: Also includes: A first expansion kettle (14), wherein the first expansion kettle (14) is connected to the second circuit (12) and the third circuit (13) respectively.

5. The cooling system according to claim 4, characterized in that: Also includes: a fourth circuit (15), wherein a third radiator (151) is provided in the fourth circuit (15), and the third radiator (151) is located on the downstream side of the first heat exchanger (111) in the airflow direction; An engine (152) is provided with a third cooling flow path, and the third cooling flow path is provided in the fourth circuit (15).

6. The cooling system according to claim 5, characterized in that Also includes: A second expansion kettle (16), wherein the second expansion kettle (16) is connected to the fourth circuit (15).

7. The cooling system according to claim 5, characterized in that: Also includes: a fifth circuit (17), the fifth circuit (17) being in communication with the first expansion kettle (14); A battery cooler (171), wherein the battery cooler (171) is provided with a fourth cooling flow path and a refrigerant flow path, wherein the fourth cooling flow path is provided in the fifth circuit (17), and the refrigerant flow path is connected to the first circuit (11).

8. The cooling system according to claim 7, characterized in that: Also includes: A plate heat exchanger (18), wherein a first heat exchange channel and a second heat exchange channel that can exchange heat with each other are arranged in the plate heat exchanger (18), the first heat exchange channel is arranged in the fourth circuit (15), and the second heat exchange channel is arranged in the fifth circuit (17).

9. The system according to claim 7, characterized in that Also includes: A pump body (19) is constructed in multiple numbers and is respectively arranged in the second circuit (12), the third circuit (13), the fourth circuit (15) and the fifth circuit (17).

10. A vehicle, characterized in that: A cooling system comprising any one of claims 1-9.

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