A thermal management system for a vehicle and a vehicle

Abstract

The present application relates to a vehicle thermal management system and a vehicle. The vehicle thermal management system includes: an engine circuit that can cool the engine, the engine circuit including a first radiator that is connected to the pipeline at the engine; a battery circuit that can cool the battery pack, the battery circuit including a second radiator that is connected to the pipeline at the battery pack; an electronic control circuit that can cool the drive motor and the electronic control device, the electronic control circuit including a third radiator that is connected to the pipelines at the drive motor and the electronic control device; and a heating circuit that can heat the battery pack, the heating circuit including a heat exchanger that is connected to the pipeline at the battery pack. The engine, the battery pack, the drive motor, and the electronic control device are cooled by the first radiator, the second radiator, and the third radiator, thereby extending the service lives of the battery pack, the engine, the drive motor, and the electronic control device.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a thermal management system for a vehicle and a vehicle. Background Art

[0002] Traditional vehicles usually rely on a fuel engine for driving, and the engine is cooled by air cooling or a radiator. However, traditional motorcycles waste energy and cause great environmental pollution. Therefore, in order to improve the economy, environmental protection and comfort of motorcycles, hybrid vehicles that can rely on fuel and a battery pack for driving are becoming more and more widely used. Since a hybrid vehicle is provided with an engine, a drive motor, an electronic control device 143 and a power battery pack, the thermal management system of a traditional vehicle cannot meet the usage requirements of a hybrid vehicle, resulting in poor working stability and short service life of the hybrid vehicle. Summary of the Invention

[0003] This application provides a thermal management system for a vehicle and a vehicle. The thermal management system for a vehicle can meet the usage requirements of the vehicle and extend the service life of the vehicle.

[0004] In a first aspect of this application, a thermal management system for a vehicle is provided. The vehicle is an all-terrain vehicle or a motorcycle. The vehicle includes: a power system for providing power for the operation of the vehicle. The power system includes: an engine; a drive motor; a battery pack for providing electric energy for the drive motor; and an electronic control device electrically connected to the drive motor for controlling the operation of the drive motor. The thermal management system for a vehicle includes: an engine circuit capable of cooling the engine. The engine circuit includes a first radiator, and the first radiator is communicated with the pipeline at the engine; a battery circuit capable of cooling the battery pack. The battery circuit includes a second radiator, and the second radiator is communicated with the pipeline at the battery pack; an electronic control circuit capable of cooling the drive motor and the electronic control device. The electronic control circuit includes a third radiator, and the third radiator is communicated with the pipeline at the drive motor and the third radiator is communicated with the pipeline at the electronic control device; a heating circuit capable of heating the battery pack. The heating circuit includes a heat exchanger, and the heat exchanger is communicated with the pipeline at the battery pack.

[0005] In this application, the second radiator can cool the battery pack, the first radiator can cool the engine, and the third radiator can cool the drive motor and the electronic control device, so as to improve the working stability of the battery pack, the engine drive motor and the electronic control device, thereby extending the service life of the battery pack, the engine drive motor and the electronic control device; when the ambient temperature of the vehicle is relatively low, the heating circuit can heat the battery pack to prevent the battery pack from being damaged when working at low temperature, and further extend the service life of the battery pack.

[0006] In a possible design, the heating circuit includes a first circuit, a third circuit, and a four-way valve. The four-way valve is used to connect or block the connection between the pipeline of the first circuit and the pipeline of the third circuit. The pipeline at the engine is connected to the pipeline of the first circuit, and the heat generated by the engine can heat the liquid in the first circuit. The third circuit is provided with a heating component, and the heating component is used to heat the battery pack. When the four-way valve blocks the connection between the pipeline of the first circuit and the pipeline of the third circuit, the third circuit can heat the battery pack through the heating component. When the four-way valve connects the pipeline of the first circuit and the pipeline of the third circuit, the third circuit can heat the battery pack through the heat generated during the operation of the engine.

[0007] In a possible design, the heating circuit further includes a second circuit and a heat exchanger. The battery pack can be connected to the pipeline of the second circuit. When the pipelines of the second circuit and the third circuit are respectively connected to the heat exchanger, the third circuit can heat the battery pack through the second circuit.

[0008] In a possible design, the third circuit is provided with a first connection valve, and the first connection valve can connect or block the connection between the heat exchanger and the pipeline of the third circuit. The second circuit is provided with a second connection valve, and the second connection valve can connect the pipeline at the battery pack to the pipeline of the battery circuit, or the second connection valve can connect the pipeline at the battery pack to the pipeline of the second circuit. When the second connection valve connects the pipeline at the battery pack to the pipeline of the battery circuit, the second radiator can cool the battery pack. When the second connection valve connects the pipeline at the battery pack to the pipeline of the second circuit, the third circuit can heat the battery pack through the second circuit.

[0009] In a possible design, the vehicle thermal management system further includes a cooling circuit. When the pipeline of the second circuit is connected to the pipeline of the cooling circuit through the heat exchanger; when the battery pack is in the first cooling state, the battery pack is cooled by the wind generated during vehicle driving, and / or the battery pack is cooled by the second radiator. When the battery pack is in the second cooling state, the battery pack is cooled by the second circuit and the cooling circuit.

[0010] In a possible design, the cooling circuit is provided with a condenser and a first expansion valve. The first expansion valve is used to connect or block the connection between the pipeline of the cooling circuit and the heat exchanger. When the first connection valve connects the heat exchanger to the pipeline of the third circuit, the first expansion valve blocks the connection between the pipeline of the cooling circuit and the heat exchanger. When the first expansion valve connects the pipeline of the cooling circuit to the heat exchanger, the first connection valve blocks the connection between the heat exchanger and the pipeline of the third circuit.

[0011] In a possible design, the engine circuit is further provided with a thermostat, and the thermostat is used to block or connect the connection between the pipeline at the first radiator and the pipeline at the engine.

[0012] In a possible design, a vehicle thermal management system includes a cooling circuit, and a condenser is provided in the cooling circuit; the vehicle thermal management system is further provided with a fan, and the fan can cool one or more of a first radiator, a second radiator, a condenser, and a third radiator.

[0013] In a possible design, the vehicle thermal management system is further provided with a temperature detection device, the temperature detection device is electrically connected to the fan, and the temperature detection device can control the rotation speed of the fan according to the detected temperature of the liquid in the vehicle thermal management system;

[0014] The cooling circuit is provided with a compressor, the vehicle thermal management system is further provided with a pressure detection device, the pressure detection device is electrically connected or in signal connection with the fan and the compressor, and the pressure detection device can control the rotation speed of the fan and the power of the compressor according to the detected pressure of the liquid in the vehicle thermal management system.

[0015] A second aspect of the present application provides a vehicle, which includes: a frame; wheels, the wheels include front wheels and rear wheels; a seat, the seat is installed on the frame, and the seat includes a driver seat; a suspension system, the suspension system includes a front suspension and a 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; a power system, the power system is arranged on the frame and is used to provide power for the vehicle, the front wheels and / or the rear wheels are drivingly connected to the power system, and the power system includes a driving motor, a battery pack for providing electric energy for the driving motor, and an electronic control device electrically connected to the driving motor for controlling the operation of the driving motor; the vehicle further includes: a vehicle thermal management system, the vehicle thermal management system is arranged on the frame, and the vehicle thermal management system is the vehicle thermal management system described in any one of the above.

[0016] In the present application, the vehicle thermal management system can be applied to both two-wheel vehicles and four-wheel vehicles, thereby increasing the applicable range of the vehicle thermal management system.

[0017] In a possible design, the vehicle is an all-terrain vehicle, the frame is provided with a passenger cabin and a window; the heating circuit includes a third circuit, the third circuit is provided with a heater core and a heating component, and the engine or the heating component can heat the passenger cabin and / or the window through the heater core; the vehicle thermal management system includes a cooling circuit, the cooling circuit is provided with a condenser and an evaporator, and the cooling circuit can cool the passenger cabin and / or the window through the condenser and the evaporator.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the vehicle provided by the present application in an embodiment, wherein the vehicle is a motorcycle;

[0020] Figure 2 This is a schematic structural diagram of the vehicle provided by this application in another embodiment, where the vehicle is an all-terrain vehicle;

[0021] Figure 3 is Figure 1 and Figure 2 a schematic structural diagram of the vehicle thermal management system in one embodiment;

[0022] Figure 4 is Figure 3 a schematic structural diagram of the engine circuit in

[0023] Figure 5 is Figure 3 a schematic structural diagram of the battery circuit in

[0024] Figure 6 is Figure 3 a schematic structural diagram of the cooling circuit in

[0025] Figure 7 is Figure 3 a schematic structural diagram of the electronic control circuit in

[0026] Reference numerals:

[0027] 1 - Vehicle thermal management system;

[0028] 11 - Battery circuit;

[0029] 111 - Battery pack;

[0030] 112 - Second connection valve;

[0031] 113 - Second radiator;

[0032] 114 - First driving part;

[0033] 12 - Engine circuit;

[0034] 121 - Engine;

[0035] 122 - First radiator;

[0036] 123 - Thermostat;

[0037] 124 - Second driving part;

[0038] 13 - Cooling circuit;

[0039] 131 - Condenser;

[0040] 132 - Fourth circuit;

[0041] 132a - First expansion valve;

[0042] 133 - Fifth circuit;

[0043] 133a - Second expansion valve;

[0044] 133b - Evaporator;

[0045] 134 - Compressor;

[0046] 14 - Electric control circuit;

[0047] 141 - Driving motor;

[0048] 142 - Third radiator;

[0049] 143 - Electric control device;

[0050] 144 - Charging converter;

[0051] 145 - Fourth driving part;

[0052] 15 - Heating circuit;

[0053] 151 - First circuit;

[0054] 152 - Second circuit;

[0055] 153 - Third circuit;

[0056] 153a - First connection valve;

[0057] 153b - Heating component;

[0058] 153c - Heater core;

[0059] 153d - Shut-off valve;

[0060] 153e - Third driving part;

[0061] 154 - Heat exchanger;

[0062] 155 - Four-way valve;

[0063] 16 - Fan;

[0064] 17 - Temperature detection device;

[0065] 18 - Pressure detection device;

[0066] 19 - Expansion tank;

[0067] 2 - Vehicle;

[0068] 20 - Seat;

[0069] 21 - Frame;

[0070] 211 - Window;

[0071] 22 - Wheel;

[0072] 221 - Front wheel;

[0073] 222 - Rear wheel;

[0074] 23 - First mounting portion;

[0075] 24 - Second mounting portion;

[0076] 25 - Third mounting portion;

[0077] 26 - Fourth mounting portion;

[0078] 27 - Front suspension;

[0079] 28 - Rear suspension.

[0080] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Detailed Description of the Embodiments

[0081] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0082] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0083] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0084] It should be understood that the term " / " used herein is only a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0085] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described from the angles shown in the drawings and should not be construed as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that one component is connected "above" or "below" another component, it can not only be directly connected "above" or "below" another component, but also be indirectly connected "above" or "below" another component through an intermediate component.

[0086] The first aspect of the present application provides a vehicle 2, as Figure 1 and Figure 2 shown, the vehicle 2 is an all-terrain vehicle or a motorcycle, and the vehicle 2 includes: a frame 21; wheels 22, the wheels 22 include front wheels 221 and rear wheels 222; a seat 20, the seat 20 is mounted on the frame 21, and the seat 20 includes a driver's seat; a suspension system, the suspension system includes a front suspension 27 and a rear suspension 28, the front wheels 221 are connected to the frame 21 through the front suspension 27, and the rear wheels 222 are connected to the frame 21 through the rear suspension 28; a power system, the power system is arranged on the frame 21 and is used to provide power for the vehicle 2, the front wheels 221 and / or the rear wheels 222 are drivingly connected to the power system, and the power system includes an engine 121, a drive motor 141, a battery pack 111 for providing electrical energy for the drive motor 141, and an electronic control device 143 electrically connected to the drive motor 141 for controlling the operation of the drive motor 141; the vehicle 2 further includes: a vehicle thermal management system 1, and the vehicle thermal management system 1 is used to adjust the operating temperatures of the engine 121, the drive motor 141, the battery pack 111, and the electronic control device 143.

[0087] In this embodiment, the vehicle thermal management system 1 can be applied to both motorcycles and all-terrain vehicles, thereby increasing the application range of the vehicle thermal management system 1. As Figure 1 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 is located in the middle part of the motorcycle, and the second mounting portion 24 is located in the rear part of the motorcycle, and the battery pack 111 is mounted on the first mounting portion 23, and the drive motor 141 and the engine 121 are respectively mounted on the second mounting portion 24. As Figure 2 shown, when the vehicle thermal management system 1 is applied to an all-terrain vehicle, the all-terrain vehicle is provided with a third mounting portion 25 and a fourth mounting portion 26, the third mounting portion 25 is located in the rear part of the all-terrain vehicle, the fourth mounting portion 26 is located in the middle part of the all-terrain vehicle, the drive motor 141 and the engine 121 are mounted on the third mounting portion 25, and the battery pack 111 is mounted on the fourth mounting portion.

[0088] Among them, as Figure 1 shown, when the vehicle 2 is a motorcycle, the number of wheels 22 is 2; asFigure 2 As shown, when the vehicle 2 is an all-terrain vehicle, the number of wheels 22 is four, and the vehicle frame 21 is provided with a passenger compartment and a window 211.

[0089] In a second aspect of the embodiments of the present application, a vehicle thermal management system 1 is provided, and the vehicle 2 is an all-terrain vehicle or a motorcycle. The vehicle 2 includes a power system for providing power for its operation, and the power system includes an engine 121, a drive motor 141, a battery pack 111 for supplying electrical energy to the drive motor 141, and an electronic control device 143 connected to the drive motor 141 for controlling the drive motor 141.

[0090] As Figures 3 to 7 shown, the vehicle thermal management system 1 includes: an engine circuit 12, the engine circuit 12 being capable of cooling the engine 121, the engine circuit 12 including a first radiator 122, the first radiator 122 being in communication with the pipeline at the engine 121; a battery circuit 11, the battery circuit 11 being capable of cooling the battery pack 111, the battery circuit 11 including a second radiator 113, the second radiator 113 being in communication with the pipeline at the battery pack 111; an electronic control circuit 14, the electronic control circuit 14 being capable of cooling the drive motor 141 and the electronic control device 143, the electronic control circuit 14 including a third radiator 142, the third radiator 142 being in communication with the pipeline at the drive motor 141 and the pipeline at the electronic control device 143; a heating circuit 15, the heating circuit 15 being capable of heating the battery pack 111, the heating circuit 15 including a heat exchanger 154, the heat exchanger 154 being in communication with the pipeline at the battery pack 111.

[0091] In this embodiment, since the drive motor 141 and the electronic control device 143 are electrically connected, therefore, the pipeline at the drive motor 141 and the pipeline at the electronic control device 143 can be provided to be in communication. As Figure 7 shown, one end of the third radiator 142 is in communication with the pipeline at the drive motor 141, and the other end is in communication with the pipeline at the electronic control device 143, so that the third radiator 142 can cool the drive motor 141 and the electronic control device 143 simultaneously, simplifies the connection structure among the electronic control circuit 14, the drive motor 141 and the electronic control device 143, thereby simplifies the structure of the vehicle thermal management system 1, and further increases the applicable range of the vehicle thermal management system 1.

[0092] Wherein, the electronic control circuit 14 is further provided with a charging converter 144 to facilitate the operation of the drive motor 141 and the electronic control device 143.

[0093] In this embodiment, during the operation of the vehicle 2, the temperatures of the engine 121 and the battery pack 111 gradually increase. At this time, the second radiator 113 of the battery circuit 11 can cool the battery pack 111, the first radiator 122 of the engine circuit 12 can cool the engine 121, and the third radiator 142 of the electronic control circuit 14 can cool the drive motor 141 and the electronic control device 143, so that the operating temperatures of the battery pack 111, the engine 121, the drive motor 141 and the electronic control device 143 are maintained stable, improving the stability of the operation of the battery pack 111, the engine 121, the drive motor 141 and the electronic control device 143, and thus extending the service lives of the battery pack 111, the engine 121, the drive motor 141 and the electronic control device 143. When the ambient temperature of the vehicle 2 is relatively low, the heating circuit 15 can heat the battery pack 111, increasing the temperature of the battery pack 111 and preventing the battery pack 111 from being damaged when operating at low temperatures, further extending the service life of the battery pack 111.

[0094] Specifically, as Figure 3 shown, the heating circuit 15 includes a first circuit 151, a third circuit 153 and a four-way valve 155. The four-way valve 155 is used to connect or block the connection between the pipeline of the first circuit 151 and the pipeline of the third circuit 153; the engine 121 is connected to the pipeline of the first circuit 151, and the heat generated by the operation of the engine 121 can heat the liquid in the first circuit 151; the third circuit 153 is provided with a heating component 153b, and the heating component 153b is used to heat the battery pack 111; when the four-way valve 155 blocks the connection between the pipeline of the first circuit 151 and the pipeline of the third circuit 153, the third circuit 153 can heat the battery pack 111 through the heating component 153b; when the four-way valve 155 connects the pipeline of the first circuit 151 and the pipeline of the third circuit 153, the heating component 153b stops working, and the third circuit 153 can heat the battery pack 111 through the heat generated by the operation of the engine 121.

[0095] In this embodiment, the first circuit 151 is used to heat the engine 121, and the third circuit 153 is used to heat the battery pack 111, so that the heating states of the engine 121 and the battery pack 111 do not interfere with each other, thereby increasing the stability of the operation of the engine 121 and the battery pack 111. At the same time, the applicable ranges of the engine 121 and the battery pack 111 are increased, and further, the performance of the vehicle thermal management system 1 is improved.

[0096] When the vehicle 2 starts, the engine 121 is in a warm-up state. The four-way valve 155 blocks the connection between the pipeline of the first circuit 151 and the pipeline of the third circuit 153. At this time, the first circuit 151 and the third circuit 153 are in a parallel state. In the first circuit 151, the heat generated by the operation of the engine 121 heats the liquid in the first circuit 151. Under the action of the liquid in the first circuit 151 and the heat generated by the operation of the engine 121, the temperature of the engine 121 rises rapidly, so as to achieve the purpose of heating the engine 121. At the same time, in the third circuit 153, the heating component 153b starts to work, and the heating component 153b heats the liquid in the third circuit 153 to heat the battery pack 111 in the third circuit 153; after the engine 121 completes the warm-up, the four-way valve 155 connects the pipeline of the first circuit 151 and the pipeline of the third circuit 153, and the heating component 153b stops working. At this time, the first circuit 151 and the third circuit 153 are in a series state, and the heat generated by the operation of the engine 121 heats the liquid in the first circuit 151 and the third circuit 153 to heat the battery pack 111 in the third circuit 153.

[0097] Therefore, by blocking the connection between the pipeline of the first circuit 151 and the pipeline of the third circuit 153 with the four-way valve 155, the warm-up speed of the engine 121 can be increased, thereby improving the working efficiency of the engine 121; by setting the heating component 153b, while the engine 121 is warming up, the battery pack 111 is heated by the heating component 153b, which can improve the working efficiency of the third circuit 153 in heating the battery pack 111; after the warm-up of the engine 121 is completed, through the heat generated by the operation of the engine 121 for heating, while ensuring the heating of the battery pack 111, the time for the engine 121 and the heating component 153b to work simultaneously is shortened, thereby saving energy.

[0098] More specifically, as Figure 3 shown, the heating circuit 15 further includes a second circuit 152 and a heat exchanger 154. The pipeline at the battery pack 111 can be connected to the pipeline of the second circuit 152; when the pipeline of the second circuit 152 and the pipeline of the third circuit 153 are respectively connected to the heat exchanger 154, the third circuit 153 can heat the battery pack 111 through the second circuit 152.

[0099] In this embodiment, the liquid in the second circuit 152 and the liquid in the third circuit 153 can transfer heat at the heat exchanger 154, so that the third circuit 153 heats the liquid in the second circuit 152 to heat the battery pack 111. Therefore, the third circuit 153 heats the battery pack 111 through the second circuit 152, which can reduce the number of components on the second circuit 152, thus simplifying the structure of the second circuit 152. The third circuit 153 heats the liquid in the second circuit 152 through the heat exchanger 154, which simplifies the connection mode between the third circuit 153 and the second circuit 152, further simplifies the structures of the third circuit 153 and the second circuit 152. At the same time, setting the heat exchanger 154 can increase the stability of the heat conversion between the liquid in the third circuit 153 and the liquid in the second circuit 152, thereby improving the working stability of the third circuit 153 and the second circuit 152.

[0100] More specifically, as Figures 3 to 5 shown, the third circuit 153 is provided with a first communication valve 153a, and the first communication valve 153a can connect or block the connection between the heat exchanger 154 and the pipeline of the third circuit 153; the second circuit 152 is provided with a second communication valve 112, and the pipeline at the battery pack 111 is connected to the pipeline of the battery circuit 11 or the pipeline of the second circuit 152 through the second communication valve 112; when the second communication valve 112 connects the pipeline at the battery pack 111 and the pipeline of the battery circuit 11, the second radiator 113 can cool the battery pack 111; when the second communication valve 112 connects the pipeline at the battery pack 111 and the pipeline of the second circuit 152, the third circuit 153 can heat the battery pack 111 through the second circuit 152.

[0101] In this embodiment, when the third circuit 153 heats the battery pack 111, the first connection valve 153a connects the pipeline of the third circuit 153 to the heat exchanger 154, and the second connection valve 112 connects the pipeline of the second circuit 152 to the heat exchanger 154, so as to facilitate the third circuit 153 to heat the liquid in the second circuit 152. When the third circuit 153 stops heating the battery pack 111, the first connection valve 153a blocks the connection between the heat exchanger 154 and the pipeline of the third circuit 153, and / or the second connection valve 112 blocks the connection between the heat exchanger 154 and the pipeline of the second circuit 152, preventing the third circuit 153 from continuously heating the second circuit 152, which may cause the temperature of the battery pack 111 to be too high and trigger safety problems, thereby improving the safety of the vehicle thermal management system 1 during use. When the pipeline at the battery pack 111 is connected to the pipeline of the battery circuit 11 through the second connection valve 112, the second radiator 113 of the battery circuit 11 can cool the liquid in the battery circuit 11, thereby reducing the temperature of the battery pack 111 and keeping the battery pack 111 in a cooled state. Therefore, by providing the first connection valve 153a and the second connection valve 112, it is possible to facilitate the control of heating or stopping heating of the second circuit 152 by the third circuit 153, and to facilitate the control of cooling or stopping cooling of the battery pack 111 by the battery circuit 11. While simplifying the third circuit 153, the second circuit 152, and the battery circuit 11, the safety of the third circuit 153, the second circuit 152, and the battery circuit 11 during use is increased, and further the safety of the vehicle thermal management system 1 during use is increased; at the same time, the structures of the third circuit 153, the second circuit 152, and the battery circuit 11 are simplified, reducing production costs.

[0102] Specifically, as Figure 3 and Figure 4 shown, the heating circuit 15 includes a third circuit 153, and the third circuit 153 is provided with a heater core 153c and a heating component 153b. The engine 121 or the heating component 153b can heat the passenger compartment and / or the window 211 through the heater core 153c.

[0103] In this embodiment, for an all-terrain vehicle with an enclosed cab, since the all-terrain vehicle is provided with a passenger compartment and a window 211, when the external environmental temperature is relatively low, the temperature of the passenger compartment is relatively low and the window 211 is prone to frosting, reducing the riding experience of passengers. The third circuit 153 is provided with a heater core 153c. When the engine 121 is in the warm-up state, the heating component 153b of the third circuit 153 heats the liquid in the third circuit 153, and the heater core 153c transfers the temperature of the liquid in the third circuit 153 to the passenger compartment to increase the temperature of the passenger compartment and defrost the window 211. After the warm-up of the engine 121 ends, the heating component 153b stops working, and the heat generated when the engine 121 operates heats the liquid in the third circuit 153, and the heater core 153c transfers the temperature of the liquid in the third circuit 153 to the passenger compartment to increase the temperature of the passenger compartment and defrost the window 211. Therefore, by providing the heater core 153c and the evaporator 133b, the third circuit 153 heats the passenger compartment through the heater core 153c and defrosts the window 211, thereby improving the user experience. At the same time, the use safety of the vehicle 2 is improved.

[0104] In addition, as Figure 3 shown, the third circuit 153 is further provided with a stop valve 153d, and the stop valve 153d can connect or block the connection between the heater core 153c and the third circuit 153. When the user needs to increase the temperature of the passenger compartment, the stop valve 153d connects the heater core 153c and the third circuit 153, that is, the third circuit 153 is in a connected state. At this time, the high-temperature liquid in the third circuit 153 can heat the passenger compartment through the heater core 153c. When the user does not need to heat the passenger compartment and the battery pack 111, the stop valve 153d blocks the connection between the heater core 153c and the third circuit 153, that is, the third circuit 153 is in a disconnected state. At this time, the liquid in the third circuit 153 will not flow through the heater core 153c and the heat exchanger 154, thereby preventing the liquid in the third circuit 153 from heating the passenger compartment and the battery pack 111. By providing the stop valve 153d, it is possible to prevent the heater core 153c and the second connection valve 112 from being accidentally opened, and prevent the liquid in the third circuit 153 from heating the passenger compartment and the battery pack 111, which reduces the user experience and even causes safety problems. Thereby, the working stability of the third circuit 153 is improved, the use safety of the vehicle thermal management system 1 is improved, and further the user experience is improved.

[0105] More specifically, as Figure 3 and Figure 6As shown, the vehicle thermal management system 1 further includes a cooling circuit 13. When the pipelines of the second circuit 152 and the pipelines of the cooling circuit 13 are connected to the heat exchanger 154, the cooling circuit 13 can cool the liquid in the battery circuit 11; when the battery pack 111 is in the first cooling state, the liquid in the battery circuit 11 is cooled by the oncoming wind generated during the driving of the vehicle 2, and / or the battery pack 111 is cooled by the second radiator 113; when the battery pack 111 is in the second cooling state, the battery pack 111 is cooled by the second circuit 152 and the cooling circuit 13.

[0106] In this embodiment, heat is generated when the battery pack 111 operates. When the heat generated by the battery pack 111 is relatively low, the battery pack 111 is in the first cooling state. At this time, the battery pack 111 can be cooled by the oncoming wind generated when the vehicle 2 moves forward. When the temperature of the battery pack 111 continues to rise and the oncoming wind cannot meet the cooling requirements of the battery pack 111, while the battery pack 111 is cooled by the oncoming wind, the second connection valve 112 connects the pipeline at the battery pack 111 and the pipeline of the battery circuit 11, and the second radiator 113 cools the liquid in the battery circuit 11 to cool the battery pack 111. When the heat generated by the battery pack 111 is relatively high, the battery pack 111 is in the second cooling state. At this time, the second connection valve 112 connects the pipeline at the battery pack 111 and the pipeline of the second circuit 152, and the pipelines of the second circuit 152 and the cooling circuit 13 are connected to the heat exchanger 154. The low-temperature liquid in the cooling circuit 13 and the high-temperature liquid in the second circuit 152 exchange heat at the heat exchanger 154 to reduce the temperature of the battery pack 111. Compared with air cooling and the cooling of the second radiator 113, the cooling circuit 13 has higher heat dissipation performance. Therefore, setting up the cooling circuit 13 can improve the heat dissipation efficiency of the battery pack 111, 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 further improving the service performance of the vehicle thermal management system 1; compared with the cooling circuit 13, air cooling and the second radiator 113 consume less energy. Therefore, when the cooling requirement of the battery pack 111 is relatively low, using air cooling and / or the second radiator 113 for cooling can reduce the energy consumed by the battery pack 111 for heat dissipation, thereby improving the energy efficiency of the motorcycle.

[0107] Specifically, as Figure 3 and Figure 6 shown, the cooling circuit 13 is provided with a condenser 131 and a first expansion valve 132a. The first expansion valve 132a is used to connect or block the connection between the pipeline at the condenser 131 and the heat exchanger 154; when the first connection valve 153a connects the heat exchanger 154 and the pipeline of the third circuit 153, the first expansion valve 132a is closed; when the first expansion valve 132a is in the open state, the first connection valve 153a blocks the connection between the heat exchanger 154 and the pipeline of the third circuit 153.

[0108] In this embodiment, when the cooling circuit 13 cools the battery pack 111, the condenser 131 cools the liquid in the cooling circuit 13, and the first expansion valve 132a connects the pipeline at the condenser 131 and the heat exchanger 154. The low-temperature liquid in the cooling circuit 13 and the high-temperature liquid in the second circuit 152 transfer heat at the heat exchanger 154 to achieve the purpose of cooling the battery pack 111. Therefore, setting the condenser 131 can improve the working efficiency of the cooling circuit 13. When the first connection valve 153a connects the pipeline of the heat exchanger 154 and the third circuit 153, the third circuit 153 can heat the battery pack 111. At this time, the first expansion valve 132a blocks the connection between the pipeline at the condenser 131 and the heat exchanger 154, preventing the second connection valve 112 from mistakenly connecting the pipeline at the battery pack 111 and the pipeline of the second circuit 152, and preventing the third circuit 153 from heating the second circuit 152 while the condenser 131 cools the second circuit 152, thus causing safety problems. Similarly, when the first expansion valve 132a is opened to make the cooling circuit 13 cool the battery pack 111, the first connection valve 153a of the third circuit 153 blocks the connection between the pipeline of the third circuit 153 and the heat exchanger 154. Therefore, setting the first expansion valve 132a can facilitate controlling the condenser 131 to cool or stop cooling the battery pack 111, preventing the second circuit 152 and the battery pack 111 from being damaged due to simultaneous heating and cooling of the second circuit 152, thereby extending the service life of the second circuit 152 and the battery pack 111 and improving the working stability of the second circuit 152 and the battery pack 111.

[0109] Specifically, as Figure 3 and Figure 6 shown, the cooling circuit 13 is provided with a condenser 131 and an evaporator 133b, and the cooling circuit 13 can cool the passenger compartment and / or the window 211 through the condenser 131 and the evaporator 133b.

[0110] In this embodiment, since the all-terrain vehicle is provided with a passenger compartment and a window 211, when the external environmental temperature is relatively high, the temperature in the passenger compartment is relatively high and the window 211 is prone to form water mist, reducing the riding experience of passengers. Therefore, the cooling circuit 13 is provided with a condenser 131 and an evaporator 133b. The condenser 131 reduces the temperature of the liquid in the cooling circuit 13, and the evaporator 133b transfers the temperature of the liquid in the cooling circuit 13 to the passenger compartment to reduce the temperature of the passenger compartment and defog the window 211. Therefore, the cooling circuit 13 cools the passenger compartment through the evaporator 133b and defogs the window 211, thereby improving the user experience and at the same time improving the use safety of the vehicle 2.

[0111] More specifically, as Figure 3 and Figure 6As shown, the cooling circuit 13 includes a fourth circuit 132 and a fifth circuit 133. The pipelines at the condenser 131 are respectively connected to the pipelines of the fourth circuit 132 and the pipelines of the fifth circuit 133. The fourth circuit 132 is provided with a first expansion valve 132a, and the first expansion valve 132a can control the cooling or stop of cooling the battery pack 111 in the fourth circuit 132. The fifth circuit 133 is provided with an evaporator 133b and a second expansion valve 133a. The second expansion valve 133a can connect or block the connection between the pipeline at the condenser 131 and the pipeline at the evaporator 133b, so as to facilitate the cooling circuit 13 to cool or stop cooling the passenger compartment and / or the window 211.

[0112] In this embodiment, when the first expansion valve 132a is opened, the pipeline at the condenser 131 is connected to the heat exchanger 154. At this time, the condenser 131 can cool the battery pack 111 through the heat exchanger 154. When the second expansion valve 133a is opened, the pipeline at the condenser 131 is connected to the pipeline at the evaporator 133b. At this time, the condenser 131 can cool the passenger compartment and / or the window 211 through the evaporator 133b. The first expansion valve 132a and the second expansion valve 133a are provided so that the pipeline at the condenser 131 can be connected to the pipeline at the heat exchanger 154 and / or the pipeline at the evaporator 133b. While ensuring that the condenser 131 can cool the battery pack 111, the passenger compartment and the window 211, the cooling of the battery pack 111 does not interfere with the cooling of the passenger compartment and the window 211, thereby improving the working performance of the cooling circuit 13. At the same time, the structure of the cooling circuit 13 is simplified, and the production cost of the vehicle 2 is reduced.

[0113] In any of the above embodiments, as Figure 3 and Figure 4 shown, the engine circuit 12 is further provided with a thermostat 123, and the thermostat 123 is used to block or connect the connection between the pipeline at the first radiator 122 and the pipeline at the engine 121.

[0114] In this embodiment, when the engine 121 is operating normally, the liquid temperature in the engine circuit 12 is low. The thermostat 123 cuts off the connection between the pipeline at the first radiator 122 and the pipeline at the engine 121 according to the detected liquid temperature in the engine circuit 12, so that the first radiator 122 is in a non-operating state. When the temperature of the engine 121 is too high, the liquid temperature in the engine circuit 12 is high. The thermostat 123 connects the pipeline at the first radiator 122 and the pipeline at the engine 121 according to the detected liquid temperature in the engine circuit 12. The first radiator 122 cools the liquid in the engine circuit 12, thereby reducing the temperature of the engine 121 and preventing the engine 121 from being damaged due to excessive temperature, thus extending the service life of the engine 121 and improving the use safety of the engine 121. At the same time, the thermostat 123 controls the amount of liquid entering the first radiator 122 according to the detected liquid temperature in the engine circuit 12, thereby controlling the cooling efficiency of the first radiator 122, reducing the risk of damage to the engine 121 caused by too low cooling efficiency of the first radiator 122, and reducing the risk of energy waste caused by too high cooling efficiency of the first radiator 122. While ensuring the normal operation of the engine 121, the energy consumption is reduced, thus improving the working performance and working efficiency of the first radiator 122.

[0115] In any of the above embodiments, as Figures 3 to 7 shown, the vehicle thermal management system 1 includes a cooling circuit 13, and a condenser 131 is provided in the cooling circuit 13; the vehicle thermal management system 1 is further provided with a fan 16, and the fan 16 can cool one or more of the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142.

[0116] In this embodiment, by cooling one or more of the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142 with the fan 16, the working efficiency of the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142 can be improved, thereby improving the working stability of the engine 121, the battery pack 111, the drive motor 141, and the electronic control device 143. At the same time, the working temperature of the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142 can be reduced, preventing the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142 from being damaged due to too high working temperature, thus extending the service life of the first radiator 122, the second radiator 113, the condenser 131, and the third radiator 142, and further improving the working stability and use performance of the vehicle thermal management system 1 and extending the service life of the vehicle thermal management system 1.

[0117] Specifically, as Figure 3As shown, the vehicle thermal management system 1 is further provided with a temperature detection device 17. The temperature detection device 17 is electrically connected to the fan 16, and the temperature detection device 17 can control the rotation speed of the fan 16 according to the detected temperature of the liquid in the vehicle thermal management system 1.

[0118] In this embodiment, the temperature detection device 17 is used to detect the temperature of the liquid in the vehicle thermal management system 1, and control the rotation speed of the fan 16 according to the detected maximum temperature, so as to ensure that the cooling power of the fan 16 can meet the highest demand among the first radiator 122, the second radiator 113, the condenser 131 and the third radiator 142, and prevent damage to one or more of the first radiator 122, the second radiator 113, the condenser 131 and the third radiator 142 caused by insufficient cooling power of the fan 16, thereby further extending the service life of the first radiator 122, the second radiator 113, the condenser 131 and the third radiator 142; at the same time, the temperature detection device 17 can control the rotation speed of the fan 16 according to the demand, preventing the fan 16 from always maintaining an ultra-high rotation speed and causing waste of energy, thereby reducing the energy consumption of the vehicle thermal management system 1 and improving the energy saving and performance of the vehicle thermal management system 1. Among them, the temperature detection device 17 can be a temperature sensor, and the number of the temperature detection devices 17 is at least one.

[0119] Among them, as Figures 3 to 7 shown, the battery circuit 11 is provided with a first driving member 114, the engine circuit 12 is provided with a second driving member 124, the heating circuit 15 is provided with a third driving member 153e, the electronic control circuit 14 is provided with a fourth driving member 145, and the cooling circuit 13 is provided with a compressor 134. The first driving member 114, the second driving member 124, the third driving member 153e, the fourth driving member 145 and the compressor 134 can drive the flow of the liquid in the vehicle thermal management system 1, preventing 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 17 can control the flow rate of the liquid in the vehicle thermal management system 1 through the first driving member 114, the third driving member 153e and the fourth driving member 145 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 demand, thereby further improving the working efficiency of the vehicle thermal management system 1.

[0120] In addition, the vehicle thermal management system 1 is further provided with a gas-liquid separation device. When the temperature of the liquid in the vehicle thermal management system 1 is relatively high, steam will be generated. The gas-liquid separation device can discharge the steam, preventing the steam from affecting the stability of the liquid flow in the vehicle thermal management system 1, making the liquid flow smoothly, thereby improving the working efficiency and working stability of the vehicle thermal management system 1.

[0121] Specifically, asFigure 3 As shown in the figure, the vehicle thermal management system 1 is further provided with a pressure detection device 18. The pressure detection device 18 is electrically connected or signal-connected to the fan 16 and the compressor 134. The pressure detection device 18 can control the rotation speed of the fan 16 and the power of the compressor 134 according to the detected pressure of the liquid in the vehicle thermal management system 1.

[0122] In this embodiment, when the temperature of the liquid in the vehicle thermal management system 1 changes, the pressure of the liquid will also change accordingly. Therefore, setting the pressure detection device 18 can determine the temperature of the liquid at this time by detecting the pressure of the liquid, and control the power of the fan 16 and the compressor 134 according to the detection result. This can not only ensure that the power of the fan 16 and the compressor 134 meets the maximum requirements of the vehicle thermal management system 1, but also avoid energy waste, thereby improving the energy-saving performance and service performance of the vehicle thermal management system 1. Among them, the pressure detection device 18 can be a pressure sensor, and the number of the pressure detection devices 18 is at least one.

[0123] In any of the above embodiments, as Figure 3 shown in the figure, the vehicle thermal management system 1 is further provided with a cooling circuit 13 and an expansion tank 19. The expansion tank 19 can supplement liquid to one or more of the engine circuit 12, the battery circuit 11, the cooling circuit 13, and the electronic control circuit 14.

[0124] In this embodiment, when heating the liquid in the vehicle thermal management system 1, the liquid will decrease due to evaporation. By setting the expansion tank 19, the user can add liquid to the vehicle thermal management system 1 through the expansion tank 19 to ensure the sufficiency of the liquid, prevent damage to the engine 121, the battery pack 111, the drive motor 141, and the electronic control device 143 caused by too little liquid in the vehicle thermal management system 1, thereby extending the service life of the engine 121, the battery pack 111, the drive motor 141, and the electronic control device 143, improving the working stability of the engine 121, the battery pack 111, the drive motor 141, and the electronic control device 143, and further improving the working stability and use safety of the vehicle thermal management system 1.

[0125] Among them, as Figure 3 shown in the figure, the number of the expansion tanks 19 is at least one. In this embodiment, the battery circuit 11 and the electronic control circuit 14 share one expansion tank 19, making the structures of the battery circuit 11 and the electronic control circuit 14 compact, thereby reducing the space occupied during the installation of the vehicle thermal management system 1, further increasing the applicable range of the vehicle thermal management system 1, and at the same time, being able to reduce the size of the vehicle 2, lower the production cost, and improve the user experience.

[0126] In addition, the electrical connection described in the embodiments of the present application can be a direct connection or there can be middleware, and the electrical connection can include a wireless connection.

[0127] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A vehicle thermal management system, wherein the vehicle (2) is an all-terrain vehicle or a motorcycle, and the vehicle (2) comprises: A power system for providing power for the operation of the vehicle (2), the power system including: an engine (121); A drive motor (141); A battery pack (111), the battery pack (111) providing electrical energy for the drive motor (141); An electronic control device (143), the electronic control device (143) being electrically connected to the drive motor (141) for controlling the operation of the drive motor (141), characterized in that the vehicle thermal management system (1) includes: An engine circuit (12), the engine circuit (12) capable of cooling the engine (121), the engine circuit (12) including a first radiator (122), the first radiator (122) being in communication with the pipeline at the engine (121); A battery circuit (11), the battery circuit (11) including a second radiator (113), the second radiator (113) being in communication with the pipeline at the battery pack (111), when the battery pack (111) is in a first cooling state, the battery pack (111) is cooled by the wind generated during the driving of the vehicle (2), and / or, the battery pack (111) is cooled by the second radiator (113); An electronic control circuit (14), the electronic control circuit (14) capable of cooling the drive motor (141) and the electronic control device (143), the electronic control circuit (14) including a third radiator (142), the third radiator (142) being in communication with the pipeline at the electronic control device (143), the third radiator (142) being in communication with the pipeline at the drive motor (141); A heating circuit (15), the heating circuit (15) including a second circuit (152), a third circuit (153) and a heat exchanger (154), the battery pack (111) being capable of being connected to the pipeline of the second circuit (152), the third circuit (153) being provided with a heating component (153b), when the pipelines of the second circuit (152) and the third circuit (153) are respectively in communication with the heat exchanger (154), the heating component (153b) can heat the battery pack (111) through the second circuit (152); A cooling circuit (13), when the battery pack (111) is in a second cooling state, the pipeline of the second circuit (152) is in communication with the pipeline of the cooling circuit (13) through the heat exchanger (154), and the cooling circuit (13) can cool the liquid in the second circuit (152); The cooling circuit (13) is provided with a condenser (131) and a first expansion valve (132a), and the first expansion valve (132a) is used to connect or block the connection between the pipeline of the cooling circuit (13) and the heat exchanger (154); The third circuit (153) is provided with a first connection valve (153a), and the first connection valve (153a) can connect or block the connection between the heat exchanger (154) and the pipeline of the third circuit (153); When the first connection valve (153a) connects the pipeline of the heat exchanger (154) and the third circuit (153), the first expansion valve (132a) blocks the connection between the pipeline of the cooling circuit (13) and the heat exchanger (154); When the first expansion valve (132a) connects the pipeline of the cooling circuit (13) and the heat exchanger (154), the first connection valve (153a) blocks the connection between the heat exchanger (154) and the pipeline of the third circuit (153).

2. The vehicle thermal management system according to claim 1, wherein, the heating circuit (15) includes a first circuit (151) and a four-way valve (155), and the four-way valve (155) is used to connect or block the connection between the first circuit (151) and the third circuit (153); the pipeline at the engine (121) is connected to the pipeline of the first circuit (151), and the heat generated by the operation of the engine (121) can heat the liquid in the first circuit (151); when the four-way valve (155) blocks the connection between the first circuit (151) and the third circuit (153), the third circuit (153) can heat the battery pack (111) through the heating component (153b); when the four-way valve (155) connects the first circuit (151) and the third circuit (153), the third circuit (153) can heat the battery pack (111) through the heat generated by the operation of the engine (121).

3. The vehicle thermal management system according to claim 2, wherein, the second circuit (152) is provided with a second connection valve (112), and the second connection valve (112) can connect the pipeline at the battery pack (111) and the pipeline of the battery circuit (11), or the second connection valve (112) can connect the pipeline at the battery pack (111) and the pipeline of the second circuit (152); when the second connection valve (112) connects the pipeline at the battery pack (111) and the pipeline of the battery circuit (11), the second radiator (113) can cool the battery pack (111); when the second connection valve (112) connects the pipeline at the battery pack (111) and the pipeline of the second circuit (152), the third circuit (153) can heat the battery pack (111) through the second circuit (152).

4. The vehicle thermal management system according to any one of claims 1 to 3, wherein, The engine circuit (12) is further provided with a thermostat (123), and the thermostat (123) is used to block or connect the connection between the pipeline at the first radiator (122) and the pipeline at the engine (121).

5. The vehicle thermal management system according to any one of claims 1 to 3, characterized in that the vehicle thermal management system (1) includes a cooling circuit (13), and the cooling circuit (13) is provided with a condenser (131); the vehicle thermal management system (1) is further provided with a fan (16), and the fan (16) can cool one or more of the first radiator (122), the second radiator (113), the condenser (131) and the third radiator (142).

6. The vehicle thermal management system according to claim 5, characterized in that the vehicle thermal management system (1) is further provided with a temperature detection device (17), the temperature detection device (17) is electrically connected to the fan (16), and the temperature detection device (17) can control the rotation speed of the fan (16) according to the detected temperature of the liquid in the vehicle thermal management system (1); the cooling circuit (13) is provided with a compressor (134), the vehicle thermal management system (1) is further provided with a pressure detection device (18), the pressure detection device (18) is electrically connected to the fan (16) and the compressor (134), and the pressure detection device (18) can control the rotation speed of the fan (16) and the power of the compressor (134) according to the detected pressure of the liquid in the vehicle thermal management system (1).

7. The vehicle thermal management system according to any one of claims 1 to 3, characterized in that the vehicle thermal management system (1) is further provided with a cooling circuit (13) and an expansion tank (19), and the expansion tank (19) can supplement liquid to one or more of the engine circuit (12), the battery circuit (11), the cooling circuit (13), the electronic control circuit (14) and the heating circuit (15).

8. A vehicle, the vehicle (2) is an all-terrain vehicle or a motorcycle, characterized in that the vehicle (2) includes: a frame (21); wheels (22), the wheels (22) include front wheels (221) and rear wheels (222); a seat (20), the seat (20) is mounted on the frame (21), and the seat (20) includes a driver's seat; a suspension system, the suspension system includes a front suspension (27) and a rear suspension (28), the front wheels (221) are connected to the frame (21) through the front suspension (27), and the rear wheels (222) are connected to the frame (21) through the rear suspension (28); A power system, which is arranged on the vehicle frame (21) and is used to provide power for the vehicle (2). The front wheels (221) and / or the rear wheels (222) are drivingly connected to the power system. The power system includes a drive motor (141), a battery pack (111) for supplying electric energy to the drive motor (141), and an electronic control device (143) electrically connected to the drive motor (141) for controlling the operation of the drive motor (141). It is characterized in that the vehicle (2) further comprises: A vehicle thermal management system (1), which is arranged on the vehicle frame (21), and the vehicle thermal management system (1) is the vehicle thermal management system (1) according to any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that the vehicle (2) is an all-terrain vehicle, and the vehicle frame (21) is provided with a passenger compartment and a window (211); the third circuit (153) is provided with a heater core (153c), and the engine (121) or the heating component (153b) can heat the passenger compartment and / or the window (211) through the heater core (153c); the cooling circuit (13) is provided with an evaporator (133b), and the cooling circuit (13) can cool the passenger compartment and / or the window (211) through the condenser (131) and the evaporator (133b).

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