Thermal management system for vehicle and vehicle

Abstract

The present application relates to a thermal management system for a vehicle and a vehicle. The thermal management system for a vehicle includes: a battery circuit capable of cooling a battery pack, including a first radiator connected to the pipes at the battery pack, an electronic control circuit capable of cooling a drive motor and an electronic control device, a second radiator connected to the pipes at the drive motor and the pipes at the electronic control device, a heating circuit capable of heating the battery pack, and a heating component connected to the pipes at the battery pack. The first radiator can cool the battery pack, the second radiator can cool the drive motor and the electronic control device, and the heating component can heat the battery pack, so that the operating temperature of the battery pack, the drive motor and the electronic control device remains stable, thereby improving the working stability of the battery pack, the drive motor and the electronic control device. The vehicle is an all-terrain vehicle or a motorcycle, which increases the scope of application of the thermal management system for the vehicle.

Description

Technical Field

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

[0002] Traditional vehicles are typically powered by fuel-powered engines, cooled by air or radiators. However, these vehicles waste energy and cause significant environmental pollution. Therefore, battery-powered electric vehicles are becoming increasingly popular to improve vehicle economy, environmental friendliness, and comfort. Because electric vehicles are equipped with a drive motor, electronic control system, and power battery pack, the thermal management systems of traditional vehicles cannot meet the requirements of electric vehicles, resulting in poor operating stability and a short service life. Summary of the Invention

[0003] The present application provides a vehicle thermal management system and a vehicle, wherein the vehicle thermal management system can meet the use requirements of the vehicle and extend the service life of the vehicle.

[0004] In a first aspect, the present application provides a thermal management system for a vehicle, wherein the vehicle is an all-terrain vehicle or a motorcycle, and the vehicle includes a power system for providing power for its operation, the power system including a drive motor, a battery pack for providing electrical energy to the drive motor, and an electronic control device connected to the drive motor for controlling the drive motor. The thermal management system for the vehicle includes:

[0005] A battery circuit, the battery circuit is capable of cooling the battery pack, the battery circuit includes a first radiator, and the first radiator is connected to a pipeline at the battery pack;

[0006] An electric control circuit capable of cooling the drive motor and the electric control device, the electric control circuit including a second radiator, the second radiator being in communication with a pipeline at the drive motor, and the second radiator being in communication with a pipeline at the electric control device;

[0007] The heating circuit can heat the battery pack. The heating circuit includes a heating component, and the heating component is connected to the pipeline at the battery pack.

[0008] In the present application, the first radiator of the battery circuit can cool the battery pack, the second radiator of the electronic control circuit can cool the drive motor and the electronic control device, and the heating component of the heating circuit can heat the battery pack, so that the operating temperature of the battery pack, the drive motor and the electronic control device remains stable, thereby improving the working stability of the battery pack, the drive motor and the electronic control device, and thus extending the service life of the battery pack, the drive motor and the electronic control device.

[0009] In one possible design, the vehicle thermal management system further includes a low-temperature circuit capable of cooling the liquid of the battery circuit;

[0010] When the battery pack is in the first cooling state, the battery pack is cooled by wind generated during vehicle driving, and / or the battery pack is cooled by the first radiator;

[0011] When the battery pack is in the second cooling state, the battery pack is cooled by the low-temperature circuit.

[0012] In one possible design, the battery circuit is provided with a four-way valve, which is used to connect or block the connection between the heating circuit and the battery circuit, connect or block the connection between the first radiator and the pipeline at the battery pack, and connect or block the connection between the low-temperature circuit and the battery circuit.

[0013] When the heating component heats the battery pack, the four-way valve connects the heating circuit and the battery circuit;

[0014] When the battery pack is in the first cooling state, the four-way valve connects the first radiator to the pipeline at the battery pack;

[0015] When the battery pack is in the second cooling state, the four-way valve connects the low-temperature circuit and the battery circuit.

[0016] In one possible design, the battery circuit is further provided with a heat exchanger, and the pipelines of the low-temperature circuit and the battery circuit are respectively connected to the heat exchanger;

[0017] When the battery pack's pipes are connected to the heat exchanger, the low-temperature circuit can cool the battery pack.

[0018] In one possible design, the drive motor includes a first drive motor, and the electronic control device includes a first electronic control device, the first electronic control device is electrically connected to the first drive motor, and the first electronic control device is used to control the operation of the first drive motor;

[0019] The pipeline at the first drive motor is connected to the pipeline at the first electronic control device;

[0020] The electric control circuit can cool the first drive motor and the first electric control device.

[0021] In one possible design, the drive motor includes a first drive motor and a second drive motor, and the electronic control device includes a first electronic control device and a second electronic control device, the first electronic control device is electrically connected to the first drive motor, and the first electronic control device controls the operation of the first drive motor, and the second electronic control device is electrically connected to the second drive motor, and the second electronic control device is used to control the operation of the second drive motor;

[0022] The pipeline at the first drive motor is connected to the pipeline at the first electronic control device, and the pipeline at the second drive motor is connected to the pipeline at the second electronic control device;

[0023] The electric control circuit can cool the first drive motor, the first electric control device, the second drive motor, and the second electric control device.

[0024] In one possible design, a thermal management system for a vehicle includes a low-temperature circuit provided with a condenser;

[0025] The vehicle thermal management system is further provided with a fan capable of cooling one or more of the first radiator, the second radiator, and the condenser.

[0026] In a possible design, the vehicle thermal management system is further provided with a temperature detection device, which can control the rotation speed of the fan according to the detected temperature of the liquid in the vehicle thermal management system.

[0027] In one possible design, the low-temperature circuit is also provided with a compressor, and the vehicle thermal management system is also provided with a pressure detection device. The pressure detection device is electrically connected to the fan and the compressor. The pressure detection device can control the fan speed and the compressor power according to the detected pressure of the liquid in the vehicle thermal management system.

[0028] A second aspect of the present application provides a vehicle, which is an all-terrain vehicle or a motorcycle, comprising:

[0029] Frame;

[0030] Wheels, including front wheels and rear wheels;

[0031] Vehicle seats, which are mounted on the vehicle frame and include a driver's seat;

[0032] Suspension system, the suspension system includes front suspension and rear suspension, the front wheels are connected to the frame through the front suspension, and the rear wheels are connected to the frame through the rear suspension;

[0033] The power system is mounted on the vehicle frame and is used to provide power to the vehicle. The front and / or rear wheels are connected to the power system through a transmission mechanism. The power system includes a drive motor, a battery pack that provides electrical energy to the drive motor, and an electronic control device connected to the drive motor for controlling the drive motor.

[0034] A vehicle thermal management system, which is arranged on the vehicle frame, is the vehicle thermal management system described in any one of the above items.

[0035] In the present application, the thermal management system for a vehicle can be applied to both motorcycles and all-terrain vehicles, thereby increasing the scope of application of the thermal management system for a vehicle.

[0036] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1This is a schematic structural diagram of a vehicle provided in the present application in one embodiment, wherein the vehicle is a motorcycle;

[0038] Figure 2 This is a schematic structural diagram of another embodiment of the vehicle provided by the present application, wherein the vehicle is an all-terrain vehicle;

[0039] Figure 3 This is a schematic structural diagram of a specific embodiment of a vehicle thermal management system provided by this application;

[0040] Figure 4 for Figure 3 Schematic diagram of the structure of the battery circuit and heating circuit;

[0041] Figure 5 for Figure 3 Schematic diagram of the structure of the medium and low temperature circuit;

[0042] Figure 6 for Figure 3 Schematic diagram of the structure of the electronic control circuit;

[0043] Figure 7 This is a schematic structural diagram of another specific embodiment of the vehicle thermal management system provided by this application;

[0044] Figure 8 for Figure 7 Schematic diagram of the structure of the electronic control circuit.

[0045] Reference numerals:

[0046] 1- Thermal management system for vehicles;

[0047] 11-battery circuit;

[0048] 111-battery pack;

[0049] 112-first radiator;

[0050] 113-heat exchanger;

[0051] 114-first driving member;

[0052] 115-four-way valve;

[0053] 115a-first pipeline;

[0054] 115b-second pipeline;

[0055] 115c-third pipeline;

[0056] 115d-fourth pipeline;

[0057] 116-four-way pipe;

[0058] 116a-fifth pipeline;

[0059] 116b-sixth pipeline;

[0060] 116c-seventh pipeline;

[0061] 116d-eighth pipeline;

[0062] 12-Electronic control circuit;

[0063] 121- second radiator;

[0064] 122-first drive motor;

[0065] 123-first electronic control device;

[0066] 124- second drive motor;

[0067] 125- second electronic control device;

[0068] 126 - second driving member;

[0069] 127-Charging converter;

[0070] 13- Heating circuit;

[0071] 131- heating element;

[0072] 14- low temperature circuit;

[0073] 141-condenser;

[0074] 142-Expansion valve;

[0075] 143-Compressor;

[0076] 15- Fan;

[0077] 16- temperature detection device;

[0078] 17-pressure detection device;

[0079] 18-Expansion pot;

[0080] 19-gas-liquid separation device;

[0081] 2- Vehicle;

[0082] 20-frame;

[0083] 21-wheel;

[0084] 211-front wheel;

[0085] 212-rear wheel;

[0086] 22-seat;

[0087] 23-first mounting portion;

[0088] 24- second mounting portion;

[0089] 25- third mounting portion;

[0090] 26- fourth mounting portion;

[0091] 27-Front suspension;

[0092] 28-Rear suspension.

[0093] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0094] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0095] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0096] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0097] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0098] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described based on the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also be indirectly connected to the other element "on" or "under" through an intermediate element.

[0099] A first aspect of the embodiment of the present application provides a vehicle 2, such as Figure 1 and Figure 2As shown, the vehicle 2 is an all-terrain vehicle or a motorcycle, and the vehicle 2 includes: a frame 20; wheels 21, the wheels 21 include a front wheel 211 and a rear wheel 212; a seat 22, the seat 22 is mounted on the frame 20, and the seat 22 includes a driver's seat 22; a suspension system, the suspension system includes a front suspension 27 and a rear suspension 28, the front wheel 211 is connected to the frame 20 via the front suspension 27, and the rear wheel 212 is connected to the frame 20 via the rear suspension 28; a power system, the power system is arranged on the frame 20, and is used to provide power for the vehicle 2, and the front wheel 211 and / or the rear wheel 212 are transmission-connected to the power system, the power system includes a drive motor, a battery pack 111 that provides electrical energy to the drive motor, and an electronic control device connected to the drive motor for controlling the drive motor; a vehicle thermal management system 1, the vehicle thermal management system 1 is arranged on the frame 20, and the vehicle thermal management system 1 is the vehicle thermal management system 1 described in any of the above embodiments.

[0100] In this embodiment, the vehicle thermal management system 1 can be applied to both motorcycles and all-terrain vehicles, thereby increasing the scope of application of the vehicle thermal management system 1. Figure 1 As shown, when the vehicle thermal management system 1 is applied to a motorcycle, the motorcycle is provided with a first mounting portion 23 and a second mounting portion 24. The first mounting portion 23 is located in the middle portion of the motorcycle, and the second mounting portion is located in the rear portion of the motorcycle. The battery pack 111 is mounted on the first mounting portion 23, and the drive motor is mounted on the second mounting portion 24. Figure 2 As shown, when the vehicle thermal management system 1 is applied to an all-terrain vehicle, the vehicle is provided with a third mounting portion 25 and a fourth mounting portion 26. The third mounting portion 25 is located at the rear portion of the all-terrain vehicle, and the fourth mounting portion 26 is located in the middle portion of the all-terrain vehicle. The third mounting portion 25 is mounted with a drive motor, and the fourth mounting portion 26 is mounted with a battery pack 111.

[0101] The second aspect of the present application provides a vehicle thermal management system 1, such as Figures 3 to 8 As shown, the vehicle thermal management system 1 includes: a battery circuit 11, which can cool the battery pack 111 and includes a first radiator 112, which is connected to the pipeline at the battery pack 111; an electronic control circuit 12, which can cool the drive motor and the electronic control device, and includes a second radiator 121, which is connected to the pipeline at the drive motor, and the second radiator 121 is connected to the pipeline at the electronic control device; a heating circuit 13, which can heat the battery pack 111 and includes a heating component 131, which is connected to the pipeline at the battery pack 111.

[0102] In this embodiment, during the operation of the vehicle 2, the temperature of the battery pack 111 gradually increases. At this time, the first radiator 112 of the battery circuit 11 can cool the battery pack 111, and the second radiator 121 of the electronic control circuit 12 can cool the drive motor and the electronic control device, so that the operating temperature of the battery pack 111, the drive motor and the electronic control device remains stable, and the operating stability of the battery pack 111, the drive motor and the electronic control device is improved, thereby extending the service life of the battery pack 111, the drive motor and the electronic control device; when the operating environment temperature of the vehicle 2 is low, the heating component 131 of the heating circuit 13 starts to work, so that the temperature of the liquid in the pipeline of the battery circuit 11 increases, so as to achieve heating of the battery pack 111, so that the temperature of the battery pack 111 increases, and the battery pack 111 is prevented from being damaged due to operation at low temperature, thereby further extending the service life of the battery pack 111.

[0103] Specifically, if Figures 3 to 5 As shown, the vehicle thermal management system 1 also includes a low-temperature circuit 14, which can cool the liquid in the battery circuit 11; when the battery pack 111 is in a first cooling state, the battery pack 111 is cooled by the wind generated during the vehicle's driving - the headwind, and / or the battery pack 111 is cooled by the first radiator 112; when the battery pack 111 is in a second cooling state, the battery pack 111 is cooled by the low-temperature circuit 14.

[0104] In this embodiment, the battery pack 111 generates heat when working. When the heat generated by the battery pack 111 is low, the battery pack 111 is in a first cooling state. At this time, the battery pack 111 can be cooled by the headwind generated when the vehicle 2 moves forward. When the temperature of the battery pack 111 continues to rise and the headwind cannot meet the cooling needs of the battery pack 111, the battery pack 111 is cooled by the headwind while the first radiator 112 is connected to the pipeline at the battery pack 111. The first radiator 112 cools the liquid in the battery circuit 11 to cool the battery pack 111; when the heat generated by the battery pack 111 is high, the battery pack 111 is in a second cooling state. At this time, the first radiator 112 stops working and the low-temperature circuit 14 cools the liquid in the battery circuit 11 to cool the battery pack 111. Compared with air cooling and the cooling of the first radiator 112, the low-temperature circuit 14 has higher heat dissipation performance. Therefore, setting up the low-temperature circuit 14 can improve the heat dissipation efficiency of the battery pack 111, and prevent the battery pack 111 from being damaged due to too low heat dissipation efficiency, thereby extending the service life of the battery pack 111, improving the working stability of the battery pack 111, and thus improving the performance of the vehicle thermal management system 1; compared with the low-temperature circuit 14, air cooling and the first radiator 112 consume less energy. Therefore, when the cooling demand of the battery pack 111 is low, using air cooling and / or the first radiator 112 for cooling can reduce the energy consumed by the battery pack 111 to dissipate heat, thereby improving the energy saving performance of the vehicle 2.

[0105] More specifically, if Figure 3 and Figure 4 As shown, the battery circuit 11 is provided with a four-way valve 115. The four-way valve 115 is used to connect or block the connection between the heating circuit 13 and the battery circuit 11. The four-way valve 115 is also used to connect or block the connection between the first radiator 112 and the pipeline at the battery pack 111. The four-way valve 115 is also used to connect or block the connection between the low-temperature circuit 14 and the battery circuit 11. When the heating component 131 heats the battery pack 111, the four-way valve 115 connects the heating circuit 13 and the battery circuit 11. When the battery pack 111 is in a first cooling state, the four-way valve 115 connects the first radiator 112 and the pipeline at the battery pack 111. When the battery pack 111 is in a second cooling state, the four-way valve 115 connects the low-temperature circuit 14 and the battery circuit 11.

[0106] In this embodiment, when the temperature of the battery pack 111 is low, the four-way valve 115 connects the heating circuit 13 and the battery circuit 11, and blocks the connection between the first radiator 112 and the pipeline at the battery pack 111, and the low-temperature circuit 14 and the battery circuit 11. At the same time, the heating component 131 heats the liquid in the battery circuit 11 to achieve heating of the battery pack 111. When the heat dissipation demand of the battery pack 111 is low, the battery pack 111 is in the first cooling state. At this time, the four-way valve 115 connects the connection between the first radiator 112 and the pipeline at the battery pack 111, and blocks the heating circuit 13 and the battery circuit 11. 1, and blocks the connection between the low-temperature circuit 14 and the battery circuit 11, so that the first radiator 112 cools the liquid in the battery circuit 11 to cool the battery pack 111; when the heat dissipation demand of the battery pack 111 is high, the battery pack 111 is in the second cooling state. At this time, the four-way valve 115 connects the connection between the low-temperature circuit 14 and the battery circuit 11, and blocks the connection between the heating circuit 13 and the battery circuit 11, and blocks the connection between the first radiator 112 and the pipeline at the battery pack 111, so that the low-temperature circuit 14 cools the liquid in the battery circuit 11 to cool the battery pack 111. Therefore, the four-way valve 115 is provided to facilitate the adjustment of the heating state or cooling state of the battery pack 111, and prevent the heating component 131 from interfering with the first radiator 112 and the low-temperature circuit 14, thereby improving the working stability of the heating component 131, the first radiator 112 and the low-temperature circuit 14, so that the working environment temperature of the battery pack 111 remains stable, thereby improving the working stability of the battery pack 111 and extending the service life of the battery pack 111; at the same time, when the low-temperature circuit 14 cools the battery pack 111, the four-way valve 115 blocks the connection between the first radiator 112 and the pipeline at the battery pack 111, so that the first radiator 112 stops working, avoiding the first radiator 112 and the low-temperature circuit 14 from working at the same time, thereby saving energy.

[0107] Specifically, if Figure 3 、 Figure 4 and Figure 5 As shown, the battery circuit 11 is further provided with a heat exchanger 113 , and the pipelines of the low-temperature circuit 14 and the pipelines of the battery circuit 11 are respectively connected to the heat exchanger 113 ; when the pipelines of the battery pack 111 are connected to the heat exchanger 113 , the low-temperature circuit 14 can cool the battery pack 111 .

[0108] In this embodiment, the liquid in the low-temperature circuit 14 and the liquid in the battery circuit 11 can transfer heat at the heat exchanger 113, so that the low-temperature circuit 14 cools the liquid in the battery circuit 11 to achieve cooling of the battery pack 111. Therefore, the heat exchanger 113 is provided to simplify the connection method between the low-temperature circuit 14 and the battery circuit 11, thereby simplifying the structure of the low-temperature circuit 14 and the battery circuit 11. At the same time, the heat exchanger 113 can increase the stability of the heat conversion between the liquid in the low-temperature circuit 14 and the liquid in the battery circuit 11, thereby improving the working stability of the low-temperature circuit 14 and the battery circuit 11, and then improving the working stability of the battery pack 111.

[0109] like Figure 3 、 Figure 4 and Figure 7As shown, the vehicle thermal management system 1 is provided with a first pipeline 115a, a second pipeline 115b, a third pipeline 115c and a fourth pipeline 115d connected to the four-way valve 115; the battery circuit 11 is provided with a four-way pipe 116, and the vehicle thermal management system 1 is further provided with a fifth pipeline 116a, a sixth pipeline 116b, a seventh pipeline 116c and an eighth pipeline 116d connected to the four-way pipe 116; one end of the battery pack 111 is connected to the four-way valve 115 through the first pipeline 115a, and the other end is connected to the fifth pipeline 116a through the fifth pipeline 116b. One end of the first radiator 112 is connected to the four-way valve 115 through the second pipeline 115b, and the other end is connected to the four-way pipe 116 through the sixth pipeline 116b; one end of the heating component 131 is connected to the four-way valve 115 through the third pipeline 115c, and the other end is connected to the four-way pipe 116 through the seventh pipeline 116c; one end of the heat exchanger 113 is connected to the four-way valve 115 through the fourth pipeline 115d, and the other end is connected to the four-way pipe 116 through the eighth pipeline 116d. When the battery pack 111 is in the heating state, the four-way valve 115 controls the first pipeline 115a to be connected to the third pipeline 115c, and the high-temperature liquid heated by the heating component 131 flows to the battery pack 111 through the seventh pipeline 116c, the four-way pipe 116 and the first pipeline 115a, so as to heat the battery pack 111; when the battery pack 111 is in the first cooling state, the four-way valve 115 controls the first pipeline 115a to be connected to the second pipeline 115b, and is cooled by the first radiator 112. The low-temperature liquid after cooling by the low-temperature circuit 14 flows through the sixth pipeline 116b, the four-way pipe 116, and the first pipeline 115a to the battery pack 111, thereby cooling the battery pack 111. When the battery pack 111 is in the second cooling state, the four-way valve 115 controls the connection between the first pipeline 115a and the fourth pipeline 115d, and the low-temperature liquid after cooling by the low-temperature circuit 14 flows through the eighth pipeline 116d, the four-way pipe 116, and the first pipeline 115a to the battery pack 111, thereby cooling the battery pack 111. Therefore, the provision of the first pipeline 115a, the second pipeline 115b, the third pipeline 115c, and the fourth pipeline 115d connected to the four-way valve 115 facilitates the four-way valve 115 to control the connection between the battery pack 111 and the first radiator 112, the heating component 131, and the heat exchanger 113, thereby facilitating the control of the heating state or cooling state of the battery pack 111, thereby improving the operating stability of the battery pack 111. The provision of the four-way pipe 116 can facilitate the connection between the first radiator 112 , the heating component 131 , and the heat exchanger 113 and the battery pack 111 , thereby simplifying the structure of the battery circuit 11 .

[0110] In the first embodiment, if Figure 6As shown, the drive motor includes a first drive motor 122 , and the electronic control device includes a first electronic control device 123 ; the first drive motor 122 and the first electronic control device 123 are connected via a pipeline; and the electronic control circuit 12 can cool the first drive motor 122 and the first electronic control device 123 .

[0111] In this embodiment, the drive motor includes a first drive motor 122, the electronic control device includes a first electronic control device 123, and the vehicle 2 is provided with the first drive motor 122 and the first electronic control device 123. While ensuring the operating stability of the vehicle 2, it avoids the waste of energy caused by an excessive number of drive motors and electronic control devices, thereby saving energy.

[0112] In the second embodiment, Figure 7 As shown, the drive motor includes a first drive motor 122 and a second drive motor 124, and the electronic control device includes a first electronic control device 123 and a second electronic control device 125; the first drive motor 122 is connected to the first electronic control device 123 through a pipeline, and the second drive motor 124 is connected to the second electronic control device 125 through a pipeline; the electronic control circuit 12 can cool the first drive motor 122, the first electronic control device 123, the second drive motor 124 and the second electronic control device 125.

[0113] In this embodiment, the drive motor includes a first drive motor 122 and a second drive motor 124, and the electronic control device includes a first electronic control device 123 and a second electronic control device 125. Vehicle 2 is equipped with dual drive motors, so that the drive motors can provide more power for vehicle 2, thereby increasing the performance and applicability of vehicle 2, and thus improving the user experience.

[0114] Since the drive motor and the electronic control device are electrically connected, the pipeline at the drive motor and the pipeline at the electronic control device can be connected. Figures 6 to 8 As shown, one end of the second radiator 121 is connected to the pipeline at the drive motor, and the other end is connected to the pipeline at the electronic control device, so that the second radiator 121 of the electronic control circuit 12 can cool the drive motor and the electronic control device at the same time, simplifying the connection structure between the electronic control circuit 12, the drive motor and the electronic control device, thereby simplifying the structure of the vehicle thermal management system 1, and further increasing the scope of application of the vehicle thermal management system 1.

[0115] like Figure 7 and Figure 8As shown, when the drive motor includes a first drive motor 122 and a second drive motor 124, and the electronic control device includes a first electronic control device 123 and a second electronic control device 125, the first drive motor 122 is connected to the first electronic control device 123 through a pipeline, and the second drive motor 124 is connected to the second electronic control device 125 through a pipeline, one end of the second radiator 121 is respectively connected to the pipeline at the first drive motor 122 and the pipeline at the second drive motor 124, and the other end of the second radiator 121 is respectively connected to the pipeline at the first electronic control device 123 and the pipeline at the second electronic control device 125, so that the second radiator 121 can cool the first drive motor 122, the first electronic control device 123, the second drive motor 124 and the second electronic control device 125 at the same time.

[0116] In addition, the electric control circuit 12 is further provided with a charging converter 127 to facilitate the operation of the drive motor and the electric control device.

[0117] In any of the above embodiments, Figures 3 to 8 As shown, the vehicle thermal management system 1 includes a low-temperature circuit 14 , which is provided with a condenser 141 ; the vehicle thermal management system 1 is also provided with a fan 15 , which can cool one or more of the first radiator 112 , the second radiator 121 and the condenser 141 .

[0118] In this embodiment, by cooling one or more of the first radiator 112, the second radiator 121 and the condenser 141 through the fan 15, the working efficiency of the first radiator 112, the second radiator 121 and the condenser 141 can be improved, thereby improving the working stability of the battery pack 111, the drive motor and the electronic control device. At the same time, the working temperature of the first radiator 112, the second radiator 121 and the condenser 141 can be reduced to prevent the first radiator 112, the second radiator 121 and the condenser 141 from being damaged due to excessive working temperature, thereby extending the service life of the first radiator 112, the second radiator and the condenser 141, thereby improving the working stability and performance of the vehicle 2 thermal management system and extending the service life of the vehicle thermal management system 1.

[0119] Specifically, if Figures 3 to 8 As shown, the vehicle thermal management system 1 is further provided with a temperature detection device 16, which is electrically connected to the fan 15. The temperature detection device 16 can control the rotation speed of the fan 15 according to the detected temperature of the liquid in the vehicle thermal management system 1, wherein the temperature detection device 16 can be a temperature sensor.

[0120] In this embodiment, the temperature detection device 16 is used to detect the temperature of the liquid in the vehicle thermal management system 1 and control the speed of the fan 15 based on the maximum temperature detected to ensure that the cooling power of the fan 15 can meet the maximum demand of the first radiator 112, the second radiator 121, and the condenser 141. This prevents insufficient cooling power of the fan 15 from damaging one or more of the first radiator 112, the second radiator 121, and the condenser 141, thereby further extending the service life of the first radiator 112, the second radiator 121, and the condenser 141. At the same time, the temperature detection device 16 can control the speed of the fan 15 based on demand to prevent the fan 15 from always maintaining an excessively high speed and causing energy waste, thereby reducing the energy consumption of the vehicle thermal management system 1 and improving the energy efficiency and performance of the vehicle thermal management system 1. The number of temperature detection devices 16 is at least one.

[0121] like Figure 4 As shown, the battery circuit 11 is provided with a first driving member 114, as shown in FIG. Figure 6 As shown, the electric control circuit 12 is provided with a second driving member 126, as shown in FIG. Figure 5 As shown, the low-temperature circuit 14 is provided with a compressor 143. The first driving member 114, the second driving member 126 and the compressor 143 can drive the flow of the liquid in the vehicle thermal management system 1 to prevent the slow flow rate of the liquid in the vehicle thermal management system 1 from reducing the working efficiency of the vehicle thermal management system 1. Among them, the temperature detection device 16 can control the flow rate of the liquid in the vehicle thermal management system 1 through the first driving member 114, the second driving member 126 and the compressor 143 according to the detected temperature of the vehicle thermal management system 1, so that the flow rate of the liquid in the vehicle thermal management system 1 can meet the heating or cooling requirements, thereby further improving the working efficiency of the vehicle thermal management system 1. Figure 5 As shown, the low-temperature circuit 14 is also provided with an expansion valve 142. When the four-way valve 115 blocks the connection between the low-temperature circuit 14 and the battery circuit 11, the expansion valve 142 disconnects the pipeline of the low-temperature circuit 14 to prevent the four-way valve 115 from mistakenly connecting the battery circuit 11 and the low-temperature circuit 14 and causing safety problems. Therefore, the expansion valve 142 is provided to facilitate the control of the low-temperature circuit 14 to cool or stop cooling the battery pack 111, thereby extending the service life of the battery pack 111 and improving the stability of the operation of the low-temperature circuit 14 and the battery pack 111.

[0122] In addition, if Figures 3 to 8 As shown, the vehicle thermal management system 1 is also provided with a gas-liquid separation device 19. When the temperature of the liquid in the vehicle thermal management system 1 is high, steam will be generated. The gas-liquid separation device 19 can discharge the steam to prevent the steam from affecting the stability of the liquid flow in the vehicle thermal management system 1, so that the liquid flows smoothly, thereby improving the working efficiency and working stability of the vehicle thermal management system 1.

[0123] Specifically, if Figures 3 to 8 As shown, the vehicle thermal management system 1 is also provided with a pressure detection device 17, which is electrically connected to the fan 15 and the compressor 143. The pressure detection device 17 can control the speed of the fan 15 and the power of the compressor 143 according to the detected pressure of the liquid in the vehicle thermal management system 1, wherein the pressure detection device can be a pressure sensor.

[0124] In this embodiment, when the temperature of the liquid in the vehicle thermal management system 1 changes, the pressure of the liquid also changes accordingly. Therefore, a pressure detection device 17 is provided to detect the liquid pressure to determine the current temperature of the liquid. The power of the fan 15 and compressor 143 is controlled based on the detection result. This ensures that the power of the fan 15 and compressor 143 meets the maximum demand of the vehicle thermal management system 1 while avoiding energy waste, thereby improving the energy efficiency and performance of the vehicle thermal management system 1. There must be at least one pressure detection device 17.

[0125] Specifically, if Figures 3 to 8 As shown, the vehicle thermal management system 1 is further provided with an expansion pot 18 , which can replenish liquid to one or more of the battery circuit 11 , the low-temperature circuit 14 , the high-temperature circuit and the electronic control circuit 12 .

[0126] In this embodiment, when the liquid in the vehicle thermal management system 1 is heated, the liquid will decrease due to evaporation. An expansion pot 18 is provided, and the user can add liquid to the vehicle thermal management system 1 through the expansion pot 18 to ensure sufficient liquid and prevent the battery pack 111, the drive motor and the electronic control device from being damaged due to insufficient liquid in the vehicle thermal management system 1, thereby extending the service life of the battery pack 111, the drive motor and the electronic control device, improving the working stability of the battery pack 111, the drive motor and the electronic control device, and further improving the working stability and use safety of the vehicle thermal management system 1.

[0127] In addition, the electrical connection described in the embodiments of the present application may be a direct connection or may involve an intermediary, and the electrical connection may include a wireless connection.

[0128] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A thermal management system for a vehicle, wherein the vehicle (2) is an all-terrain vehicle, and the vehicle (2) comprises: A power system for providing power for the operation of the vehicle (2), the power system comprising: Drive motor; A battery pack (111) provides electrical energy to the drive motor; An electronic control device is electrically connected to the drive motor and is used to control the operation of the drive motor, characterized in that the vehicle thermal management system (1) comprises: A battery circuit (11), the battery circuit (11) being capable of cooling the battery pack (111), the battery circuit (111) comprising a first radiator (112), the first radiator (112) being in communication with a pipeline at the battery pack (111); An electric control circuit (12), the electric control circuit (12) being capable of cooling the drive motor and the electric control device, the electric control circuit (12) comprising a second radiator (121), the second radiator (121) being in communication with a pipeline at the drive motor, and the second radiator (121) being in communication with a pipeline at the electric control device; a heating circuit (13), the heating circuit (13) being capable of heating the battery pack (111), the heating circuit (13) comprising a heating component (131), the heating component (131) being in communication with a pipeline at the battery pack (111); The battery circuit (11) is provided with a four-way valve (115), the four-way valve (115) being used to connect or block the connection between the heating circuit (13) and the battery circuit (11), and the four-way valve (115) being further used to connect or block the connection between the first radiator (112) and the pipeline at the battery pack (111); When the heating component (131) heats the battery pack (111), the four-way valve (115) connects the heating circuit (13) and the battery circuit (11); When the battery pack (111) is in a first cooling state, the four-way valve (115) connects the first radiator (112) and the pipeline at the battery pack (111); The vehicle thermal management system (1) further includes a low-temperature circuit (14); the four-way valve (115) is further used to connect or block the connection between the low-temperature circuit (14) and the battery circuit (11); the battery circuit (11) is further provided with a heat exchanger (113), and the pipeline of the low-temperature circuit (14) and the pipeline of the battery circuit (11) are respectively connected to the heat exchanger (113); The vehicle thermal management system is provided with a first pipeline (115a), a second pipeline (115b), a third pipeline (115c), and a fourth pipeline (115d) connected to the four-way valve (115); the battery circuit (11) is provided with a four-way pipe (116); the vehicle thermal management system is further provided with a fifth pipeline (116a), a sixth pipeline (116b), a seventh pipeline (116c), and an eighth pipeline (116d) connected to the four-way pipe (116); one end of the battery pack (111) is connected to the four-way valve (115) via the first pipeline (115a), and the other end is connected to the battery pack (111) via the fifth pipeline (116a). connected to the four-way pipe (116); one end of the first radiator (112) is connected to the four-way valve (115) through the second pipe (115b), and the other end is connected to the four-way pipe (116) through the sixth pipe (116b); one end of the heating component (131) is connected to the four-way valve (115) through the third pipe (115c), and the other end is connected to the four-way pipe (116) through the seventh pipe (116c); one end of the heat exchanger (113) is connected to the four-way valve (115) through the fourth pipe (115d), and the other end is connected to the four-way pipe (116) through the eighth pipe (116d).

2. The vehicle thermal management system according to claim 1, characterized in that: The low-temperature circuit (14) is capable of cooling the liquid in the battery circuit (11); When the battery pack (111) is in the first cooling state, the battery pack (111) is cooled by wind generated during vehicle travel, and / or the battery pack (111) is cooled by the first radiator (112); When the battery pack (111) is in the second cooling state, the battery pack (111) is cooled by the low-temperature circuit (14).

3. The vehicle thermal management system according to claim 2, wherein: When the battery pack (111) is in the second cooling state, the four-way valve (115) connects the low-temperature circuit (14) and the battery circuit (11).

4. The vehicle thermal management system according to claim 2, characterized in that: When the pipeline of the battery pack (111) is connected to the heat exchanger (113), the low-temperature circuit (14) can cool the battery pack (111).

5. The vehicle thermal management system according to any one of claims 1 to 4, characterized in that: The drive motor includes a first drive motor (122), and the electronic control device includes a first electronic control device (123), the first electronic control device (123) is electrically connected to the first drive motor (122), and the first electronic control device (123) is used to control the operation of the first drive motor (122); The pipeline at the first drive motor (122) is connected to the pipeline at the first electronic control device (123); The electric control circuit (12) is capable of cooling the first drive motor (122) and the first electric control device (123).

6. The vehicle thermal management system according to any one of claims 1 to 4, characterized in that: The drive motor includes a first drive motor (122) and a second drive motor (124); the electronic control device includes a first electronic control device (123) and a second electronic control device (125); the first electronic control device (123) is electrically connected to the first drive motor (122); the first electronic control device (123) controls the operation of the first drive motor (122); the second electronic control device (125) is electrically connected to the second drive motor (124); the second electronic control device (125) is used to control the operation of the second drive motor (124); The pipeline at the first drive motor (122) is connected to the pipeline at the first electronic control device (123), and the pipeline at the second drive motor (124) is connected to the pipeline at the second electronic control device (125); The electric control circuit (12) is capable of cooling the first drive motor (122), the first electric control device (123), the second drive motor (124), and the second electric control device (125).

7. The vehicle thermal management system according to any one of claims 1 to 4, characterized in that: The vehicle thermal management system (1) further includes a low-temperature circuit (14), wherein the low-temperature circuit (14) is provided with a condenser (141); The vehicle thermal management system (1) is further provided with a fan (15), and the fan (15) is capable of cooling one or more of the first radiator (112), the second radiator (121), and the condenser (141).

8. The vehicle thermal management system according to claim 7, characterized in that: The vehicle thermal management system (1) is further provided with a temperature detection device (16), the temperature detection device (16) being electrically connected to the fan (15), and the temperature detection device (16) being capable of controlling the rotation speed of the fan (15) according to the detected temperature of the liquid in the vehicle thermal management system (1).

9. The vehicle thermal management system according to claim 7, characterized in that: The low-temperature circuit (14) is further provided with a compressor (143), and the vehicle thermal management system (1) is further provided with a pressure detection device (17). The pressure detection device (17) is electrically connected to the fan (15) and the compressor (143). The pressure detection device (17) can control the rotation speed of the fan (15) and the power of the compressor (143) according to the detected pressure of the liquid in the vehicle thermal management system (1).

10. A vehicle, wherein the vehicle (2) is an all-terrain vehicle, and the vehicle (2) comprises: Frame (20); Wheels (21), the wheels (21) comprising a front wheel (211) and a rear wheel (212); A vehicle seat (22), the vehicle seat (22) being mounted on the vehicle frame (20), the vehicle seat (22) comprising a driver's seat; A suspension system, the suspension system comprising a front suspension (27) and a rear suspension (28), the front wheel (211) being connected to the vehicle frame (20) via the front suspension (27), and the rear wheel (212) being connected to the vehicle frame (20) via the rear suspension (28); A power system, the power system being arranged on the vehicle frame (20) and being used to provide power for the vehicle (2), the front wheels (211) and / or the rear wheels (212) being transmission-connected to the power system, the power system comprising a drive motor, a battery pack (111) for providing electrical energy to the drive motor, and an electronic control device electrically connected to the drive motor for controlling the operation of the drive motor; characterized in that the vehicle (2) further comprises: A vehicle thermal management system (1), wherein the vehicle thermal management system (1) is arranged on the vehicle frame (20), and the vehicle thermal management system (1) is the vehicle thermal management system (1) according to any one of claims 1 to 9.

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