Thermal management system and thermal management method of vehicle and automobile

Abstract

The invention discloses a vehicle thermal management system, a thermal management method and an automobile. A controller of a vehicle is arranged in a controller cabin. The thermal management system comprises a heat conduction device arranged in the controller cabin, an air conditioning system arranged in a passenger cabin, a power cooling system, a compressor and a condenser. Under the condition that the temperature in the controller cabin reaches the first temperature threshold value, the refrigerant is controlled to flow through the heat exchange mechanism of the heat conduction device, the controller cabin is actively cooled, and efficient heat dissipation of the controller is achieved.

Description

Technical Field

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

[0002] A large amount of heat is generated during the operation of the vehicle's controller. If the controller cannot be effectively cooled, the temperature of the controller will be too high, which will affect the performance of the controller, shorten its service life, and even cause system failures. For those skilled in the art, how to improve the heat dissipation efficiency of the controller in the vehicle is an urgent problem to be solved. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a thermal management system for a vehicle, a thermal management method for a vehicle, and an automobile, which can efficiently dissipate heat from the controller in the vehicle.

[0004] To achieve the above purpose, this application provides the following technical solutions:

[0005] In the first aspect, this application provides a thermal management system for a vehicle. The vehicle includes a controller compartment, and the vehicle's controller is arranged in the controller compartment. The thermal management system includes: a heat conduction device arranged in the controller compartment; an air conditioning system arranged in the passenger compartment; a power cooling system; a compressor; a condenser;

[0006] The controller is configured to: in the heat dissipation mode, if the air conditioning system starts the refrigeration function and the temperature in the controller compartment reaches the first temperature threshold, then sequentially connect the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor to form a first loop; in the heat dissipation mode, if the air conditioning system does not start the refrigeration function and the temperature in the controller compartment reaches the first temperature threshold, then sequentially connect the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor to form a second loop.

[0007] Optionally, the controller is further configured to:

[0008] In the heat dissipation mode, if the air conditioning system starts the refrigeration function and the temperature in the controller compartment is lower than the second temperature threshold, then sequentially connect the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the power cooling system, and the compressor to form a third loop, where the second temperature threshold is lower than the first temperature threshold.

[0009] Optionally, the controller is further configured to:

[0010] In the heat dissipation mode, if the air conditioning system does not start the refrigeration function and the temperature in the controller compartment is lower than the second temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a fourth circuit.

[0011] Optionally, the controller is further configured to:

[0012] In the heating mode, if the air conditioning system starts the heating function and the temperature in the controller compartment reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air conditioning system, and the compressor are sequentially connected to form a fifth circuit.

[0013] Optionally, the controller is further configured to:

[0014] In the heating mode, if the air conditioning system starts the heating function and the temperature in the controller compartment is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air conditioning system, and the compressor are sequentially connected to form a sixth circuit.

[0015] Optionally, the controller is further configured to:

[0016] In the heating mode, if the air conditioning system does not start the heating function and the temperature in the controller compartment reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form the second circuit.

[0017] Optionally, the controller is further configured to:

[0018] In the heating mode, if the air conditioning system does not start the heating function and the temperature in the controller compartment is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form the fourth circuit.

[0019] Optionally, the heat conduction device includes a heat conduction main body, a heat conduction pipe, heat conduction fins, and a negative pressure fan. Among them, along the first direction, the heat conduction main body and the heat conduction fins are arranged in sequence, the heat conduction pipe is embedded in the heat conduction main body, and the negative pressure fan is embedded in the part of the heat conduction fins away from the heat conduction main body.

[0020] Optionally, the inlet of the condenser is communicated with the outlet of the compressor, the outlet of the condenser is communicated with the inlet of the switching device, the inlet of the heat exchange mechanism in the air conditioning system is selectively communicated with the first outlet of the switching device or the outlet of the heat exchange mechanism in the power cooling system, the outlet of the heat exchange mechanism in the air conditioning system is selectively communicated with the inlet of the heat exchange mechanism in the heat conduction device, the inlet of the heat exchange mechanism in the power cooling system or the inlet of the compressor, the inlet of the heat exchange mechanism in the heat conduction device is selectively communicated with the second outlet of the switching device or the outlet of the heat exchange mechanism in the air conditioning system, the inlet of the heat exchange mechanism in the power cooling system is selectively communicated with the third outlet of the switching device, the outlet of the heat exchange mechanism in the heat conduction device or the outlet of the heat exchange mechanism in the air conditioning system, and the outlet of the heat exchange mechanism in the power cooling system is selectively communicated with the inlet of the heat exchange mechanism in the air conditioning system or the inlet of the radiator.

[0021] In a second aspect, the present application provides a vehicle heat management method. The vehicle includes a controller compartment, and the vehicle's controller is arranged in the controller compartment. The vehicle's heat management system includes: a heat conduction device arranged in the controller compartment; an air conditioning system arranged in the passenger compartment; a power cooling system; a compressor; a condenser; and the heat management method includes:

[0022] In the heat dissipation mode, if the air conditioning system starts the refrigeration function and the temperature in the controller compartment reaches the first temperature threshold, then the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially communicated to form a first loop;

[0023] In the heat dissipation mode, if the air conditioning system does not start the refrigeration function and the temperature in the controller compartment reaches the first temperature threshold, then the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially communicated to form a second loop.

[0024] In a third aspect, the present application provides an automobile, including any one of the above heat management systems.

[0025] Thus, the beneficial effects of the present application are as follows:

[0026] Based on the vehicle heat management system disclosed in the present application, a heat conduction device is arranged in the controller compartment where the controller is located. When the temperature in the controller compartment reaches the first temperature threshold, the refrigerant flow through the heat exchange mechanism of the heat conduction device is controlled to actively cool the controller compartment, realizing efficient heat dissipation of the controller. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Schematic structural diagram of a vehicle thermal management system disclosed in the present application;

[0029] Figure 2 Cross-sectional schematic diagram of a heat conduction device arranged in a controller compartment disclosed in the present application;

[0030] Figure 3 Cross-sectional schematic diagram of a controller compartment arranged with a heat conduction device disclosed in the present application;

[0031] Figure 4 Schematic structural diagram of another vehicle thermal management system disclosed in the present application;

[0032] Figure 5 Schematic structural diagram of another vehicle thermal management system disclosed in the present application.

[0033] Wherein:

[0034] 1 is the controller compartment; 10 is the heat conduction device; 101 is the heat conduction main body; 102 is the heat conduction pipe; 103 is the heat conduction fin; 104 is the negative pressure fan; 20 is the air conditioning system; 30 is the power cooling system; 40 is the condenser; 50 is the compressor; 60 is the switching device; 601 is the third three-way valve; 602 is the second two-way valve; 701 is the first three-way valve; 702 is the first two-way valve; 703 is the second three-way valve; 704 is the first expansion valve; 705 is the second expansion valve; 706 is the third expansion valve; 80 is the controller. Specific embodiments

[0035] The present application discloses a vehicle thermal management system, a vehicle thermal management method and an automobile, which can efficiently dissipate heat from the controller in the vehicle.

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0037] See Figure 1 ,Figure 1 The structural schematic diagram of a thermal management system for a vehicle disclosed in the present application.

[0038] This thermal management system is applicable to fuel vehicles, hybrid vehicles, and new energy vehicles, and is particularly applicable to driverless vehicles. A driverless vehicle makes decisions based on the output signals of various sensors by a controller and realizes autonomous operation. The controller in a driverless vehicle generates a relatively large amount of heat, and the stable operation of the controller is crucial for the driverless vehicle.

[0039] The vehicle where the thermal management system disclosed in the present application is located includes a controller cabin 1, and the controller of the vehicle is arranged in the controller cabin 1. This thermal management system includes a heat conduction device 10 arranged in the controller cabin 1, an air conditioning system 20 arranged in the passenger cabin, a power cooling system 30, a condenser 40, and a compressor 50 (not shown in Figure 1 ).

[0040] The heat conduction device 10 arranged in the controller cabin 1 at least includes a heat exchange mechanism. An expansion valve is provided at the inlet of the heat exchange mechanism. Refrigerant flows into the heat exchange mechanism from the inlet and flows out from the outlet of the heat exchange mechanism. During the process of flowing through the heat exchange mechanism, the refrigerant exchanges heat with the air in the controller cabin 1, thereby adjusting the temperature in the controller cabin 1. Optionally, the heat conduction device 10 further includes a fan.

[0041] The air conditioning system 20 arranged in the passenger cabin at least includes a heat exchange mechanism and a fan. An expansion valve is provided at the inlet of the heat exchange mechanism. Refrigerant flows into the heat exchange mechanism from the inlet and flows out from the outlet of the heat exchange mechanism. During the process of flowing through the heat exchange mechanism, with the assistance of the fan, the refrigerant exchanges heat with the air in the passenger cabin, thereby adjusting the temperature in the passenger cabin. Optionally, the air conditioning system 20 may further include a heater.

[0042] The power cooling system 30 at least includes a heat exchange mechanism. An expansion valve is provided at the inlet of the heat exchange mechanism. Refrigerant flows into the heat exchange mechanism from the inlet and flows out from the outlet of the heat exchange mechanism. During the process of flowing through the heat exchange mechanism, the refrigerant exchanges heat with the air around the power system, thereby adjusting the temperature of the power system.

[0043] The compressor 50 is used to compress the refrigerant to increase the pressure and temperature of the refrigerant. Under the action of the compressor 50, the refrigerant changes from low-pressure gaseous state to high-pressure gaseous state. The high-pressure gaseous refrigerant flows into the condenser 40, and the refrigerant exchanges heat with the external environment of the vehicle, causing the high-pressure gaseous refrigerant to change into high-pressure liquid refrigerant. The high-pressure liquid refrigerant flowing out of the condenser 40 is transformed into low-pressure liquid refrigerant under the action of the expansion valve. During the process of flowing through the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the air conditioning system 20, or the heat exchange mechanism in the power cooling system 30, the refrigerant exchanges heat with the air around the heat exchange mechanism, and the refrigerant returns to the gaseous state and finally flows back to the compressor 50.

[0044] Optionally, a fan for the condenser 40 is configured. This fan can improve the heat exchange efficiency between the refrigerant in the condenser 40 and the external environment of the vehicle.

[0045] In Figure 1 it, the controller compartment 1 is located below the center console of the vehicle, the air conditioning system 20 is located in the passenger compartment, the power cooling system 30 is located at the bottom of the vehicle, and the condenser 40 is located at the rear of the vehicle. It can be understood that in implementation, the positions of the controller compartment 1, the air conditioning system 20, the power cooling system 30, and the condenser 40 can be adjusted, Figure 1 the positions shown in

[0046] The controller is used for: in the heat dissipation mode, if the air conditioning system 10 starts the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then sequentially connect the condenser 40, the heat exchange mechanism in the air conditioning system 20, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to form a first loop; in the heat dissipation mode, if the air conditioning system 20 does not start the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then sequentially connect the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to form a second loop.

[0047] Optionally, the controller determines the current working mode based on the ambient temperature outside the vehicle. Specifically, if the ambient temperature outside the vehicle is higher than the first ambient temperature threshold, it is determined to enter the heat dissipation mode; if the ambient temperature outside the vehicle is lower than the second ambient temperature threshold, it is determined to enter the heating mode.

[0048] In the heat dissipation mode, the controller obtains the working state information of the air conditioning system 20 and the temperature in the controller compartment 1; the controller determines whether the air conditioning system 20 starts the refrigeration function and whether the temperature in the controller compartment 1 reaches the first temperature threshold, and determines the flow path of the refrigerant based on the determination results.

[0049] Specifically:

[0050] If the judgment result indicates that the air conditioning system 20 starts the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then the controller controls the condenser 40, the heat exchange mechanism in the air conditioning system 20, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to be connected in sequence to form a first loop. That is to say, the flow path of the refrigerant is: condenser 40 - heat exchange mechanism in the air conditioning system 20 - heat exchange mechanism in the heat conduction device 10 - heat exchange mechanism in the power cooling system 30 - compressor 50 - condenser 40. The compressor 50 compresses the refrigerant, causing the refrigerant to change from low-pressure gaseous state to high-pressure gaseous state. The high-pressure gaseous refrigerant flows into the condenser 40, exchanges heat with the external environment of the vehicle, and changes into high-pressure liquid refrigerant. After the action of the expansion valve, the refrigerant changes from high-pressure liquid to low-pressure liquid. During the process of the low-pressure liquid refrigerant flowing through the heat exchange mechanism in the air conditioning system 20, the heat exchange mechanism in the heat conduction device 10, and the heat exchange mechanism in the power cooling system 30, it exchanges heat with the air around the heat exchange mechanism, that is, absorbs the heat around the heat exchange mechanism, thereby cooling the passenger compartment, the controller arranged in the controller compartment 1, and the power system of the vehicle. During this process, the low-pressure liquid refrigerant returns to the low-pressure gaseous state and flows back to the compressor 50.

[0051] If the judgment result shows that the air conditioning system 20 does not start the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then the controller controls the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to be connected in sequence to form a second loop. That is to say, the flow path of the refrigerant is: condenser 40 - heat exchange mechanism in the heat conduction device 10 - heat exchange mechanism in the power cooling system 30 - compressor 50 - condenser 40. During the process of the low-pressure liquid refrigerant flowing through the heat exchange mechanism in the heat conduction device 10 and the heat exchange mechanism in the power cooling system 30, it exchanges heat with the air around the heat exchange mechanism, thereby cooling the controller arranged in the controller compartment 1 and the power system of the vehicle.

[0052] The vehicle thermal management system disclosed in this application includes a heat conduction device 10 arranged in the controller cabin 1, an air conditioning system 20 arranged in the passenger cabin, a power cooling system 30, a condenser 40, and a compressor 50. When the air conditioning system 20 starts the refrigeration function and the temperature in the controller cabin 1 reaches the first temperature threshold, the condenser 40, the heat exchange mechanism in the air conditioning system 20, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 are controlled to be connected in sequence to form a first loop, so as to cool down the passenger cabin, the controller arranged in the controller cabin 1, and the vehicle power system. When the air conditioning system 20 does not start the refrigeration function and the temperature in the controller cabin 1 reaches the first temperature threshold, the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 are controlled to be connected in sequence to form a second loop, so as to cool down the controller arranged in the controller cabin 1 and the vehicle power system. Based on the vehicle thermal management system disclosed in this application, a heat conduction device 10 is arranged in the controller cabin 1 where the controller is located. When the temperature in the controller cabin 1 reaches the first temperature threshold, the refrigerant flow through the heat exchange mechanism of the heat conduction device 10 is controlled to actively cool down the controller cabin 1, so as to achieve efficient heat dissipation of the controller.

[0053] In another embodiment of this application, the controller is further configured to: in the heat dissipation mode, if the air conditioning system 20 starts the refrigeration function and the temperature in the controller cabin 1 is lower than the second temperature threshold, the condenser 40, the heat exchange mechanism in the air conditioning system 20, the heat exchange mechanism in the power cooling system 30, and the compressor 50 are connected in sequence to form a third loop.

[0054] Wherein, the second temperature threshold is lower than the first temperature threshold.

[0055] Based on the vehicle thermal management system disclosed above in this application, in the heat dissipation mode, if the air conditioning system 20 starts the refrigeration function and the temperature in the controller cabin 1 is lower than the second temperature threshold, the low-pressure liquid refrigerant is controlled to flow through the heat exchange mechanism in the air conditioning system 20 and the heat exchange mechanism in the power cooling system 30, so as to reduce the temperature of the passenger cabin and the power system. Moreover, the refrigerant does not flow through the heat exchange mechanism of the heat conduction device 10, which can avoid unnecessary heat exchange and thus reduce the system energy consumption.

[0056] In another embodiment of this application, the controller is further configured to: in the heat dissipation mode, if the air conditioning system 20 does not start the refrigeration function and the temperature in the controller cabin 1 is lower than the second temperature threshold, the condenser 40, the heat exchange mechanism in the power cooling system 30, and the compressor 50 are connected in sequence to form a fourth loop.

[0057] Based on the vehicle thermal management system disclosed above in the present application, in the heat dissipation mode, if the air conditioning system 20 does not start the refrigeration function and the temperature in the controller compartment 1 is lower than the second temperature threshold, then it is controlled that the low-pressure liquid refrigerant flows through the heat exchange mechanism in the power cooling system 30, thereby reducing the temperature of the power system. Moreover, the refrigerant does not flow through the heat exchange mechanism of the air conditioning system 20 and the heat exchange mechanism of the heat conduction device 10, which can avoid unnecessary heat exchange and thus reduce the system energy consumption.

[0058] In another embodiment of the present application, the controller is further configured to: in the heating mode, if the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, then connect the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, the heat exchange mechanism in the air conditioning system 20, and the compressor 50 in sequence to form a fifth loop.

[0059] In the heating mode, the controller obtains the working state information of the air conditioning system 20 and the temperature in the controller compartment 1; the controller determines whether the air conditioning system 20 starts the heating function and determines whether the temperature in the controller compartment 1 reaches the third temperature threshold, and determines the flow path of the refrigerant based on the determination result.

[0060] Specifically:

[0061] If the determination result shows that the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, then the controller controls the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, the heat exchange mechanism in the air conditioning system 20, and the compressor 50 to be connected in sequence to form a fifth loop. That is to say, the flow path of the refrigerant is: condenser 40 - heat exchange mechanism in the heat conduction device 10 - heat exchange mechanism in the power cooling system 30 - heat exchange mechanism in the air conditioning system 20 - compressor 50 - condenser 40. During the process of the refrigerant flowing through the heat exchange mechanism in the heat conduction device 10 and the heat exchange mechanism in the power cooling system 30, it absorbs the heat generated by the controller and the power system. During the process of flowing through the heat exchange mechanism in the air conditioning system 20, it exchanges heat with the air in the air conditioning system 20 to increase the temperature in the air conditioning system 20, thereby increasing the temperature in the passenger compartment.

[0062] Optionally, after forming the fifth loop and running for a predetermined duration, if the temperature in the passenger compartment is lower than the target temperature of the air conditioning system 20, then the air conditioning system 20 starts its own heater.

[0063] Optionally, when the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, the controller further determines whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor 50 to reduce its rotational speed. That is to say, on the premise of ensuring that the controller and the power battery are at appropriate temperatures, the electric energy consumed by the compressor 50 is reduced, and the energy consumption of the whole vehicle is further reduced.

[0064] Based on the vehicle thermal management system disclosed above in this application, in the heating mode, if the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, then after controlling the refrigerant to flow out from the heat exchange mechanism in the heat conduction device 10 and the heat exchange mechanism in the power cooling system 30, it first flows through the heat exchange mechanism in the air conditioning system 20, and uses the heat generated by the controller and the power system to increase the temperature in the passenger compartment, which can reduce the heating capacity of the air conditioning system 20, reduce the electric energy consumed by the air conditioning system 20, and thus reduce the energy consumption of the whole vehicle. In addition, when the temperature of the power system is lower than the fifth temperature threshold, the controller further controls the compressor 50 to reduce its rotational speed. On the premise of ensuring that the controller and the power battery are at appropriate temperatures, the electric energy consumed by the compressor 50 is reduced, and the energy consumption of the whole vehicle is further reduced. For new energy vehicles, it can effectively increase their cruising range.

[0065] In another embodiment of this application, the controller is further configured to: in the heating mode, if the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 is lower than the fourth temperature threshold, then the condenser 40, the heat exchange mechanism in the power cooling system 30, the heat exchange mechanism in the air conditioning system 20, and the compressor 50 are sequentially connected to form a sixth loop.

[0066] That is to say, the flow path of the refrigerant is: condenser 40 - heat exchange mechanism in the power cooling system 30 - heat exchange mechanism in the air conditioning system 20 - compressor 50 - condenser 40. During the process of flowing through the heat exchange mechanism in the power cooling system 30, the refrigerant absorbs the heat generated by the power system. During the process of flowing through the heat exchange mechanism in the air conditioning system 20, it exchanges heat with the air in the air conditioning system 20 to increase the temperature in the air conditioning system 20, thereby increasing the temperature in the passenger compartment.

[0067] Optionally, after forming the sixth loop and running for a predetermined duration, if the temperature in the passenger compartment is lower than the target temperature of the air conditioning system 20, then the air conditioning system 20 starts its own heater.

[0068] Optionally, when the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 is lower than the fourth temperature threshold, the controller further determines whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor 50 to reduce its speed. That is to say, on the premise of ensuring that the controller and the power battery are at appropriate temperatures, the electric energy consumed by the compressor 50 is reduced, and the energy consumption of the whole vehicle is further reduced.

[0069] Based on the vehicle thermal management system disclosed above in the present application, in the heating mode, if the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 is lower than the fourth temperature threshold, then after controlling the refrigerant to flow out of the heat exchange mechanism in the power cooling system 30, it first flows through the heat exchange mechanism in the air conditioning system 20, and uses the heat generated by the power system to increase the temperature in the passenger compartment. This can reduce the heating capacity of the air conditioning system 20, reduce the electric energy consumed by the air conditioning system 20, and thus reduce the energy consumption of the whole vehicle. In addition, when the temperature of the power system is lower than the fifth temperature threshold, the controller further controls the compressor 50 to reduce its speed. On the premise of ensuring that the controller and the power battery are at appropriate temperatures, the electric energy consumed by the compressor 50 is reduced, and the energy consumption of the whole vehicle is further reduced. For new energy vehicles, the cruising range can be effectively increased.

[0070] In another embodiment of the present application, the controller is further configured to: in the heating mode, if the air conditioning system 20 does not start the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, then sequentially connect the condenser 40, the heat exchange mechanism in the heat conduction device 10, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to form a second loop.

[0071] In another embodiment of the present application, the controller is further configured to: in the heating mode, if the air conditioning system 20 does not start the heating function and the temperature in the controller compartment 1 is lower than the fourth temperature threshold, then sequentially connect the condenser 40, the heat exchange mechanism in the power cooling system 30, and the compressor 50 to form a fourth loop.

[0072] In the two embodiments disclosed above in the present application, in the heating mode, if the air conditioning system 20 does not start the heating function, then based on whether the temperature in the controller compartment 1 reaches the third temperature threshold, it is determined whether to control the refrigerant to flow through the heat exchange mechanism in the heat conduction device 10, which can avoid unnecessary heat exchange and thus reduce the system energy consumption.

[0073] In each of the embodiments disclosed above in the present application, as an optional implementation manner, the structure of the heat conduction device 10 is as Figure 2 shown.

[0074] The heat conduction device 10 includes a heat conduction main body 101, a heat conduction pipe 102, heat conduction fins 103, and a negative pressure fan 104. Among them, along the first direction ( Figure 2 the vertical direction in Figure 3 ), the heat conduction main body 101 and the heat conduction fins 103 are arranged in sequence, the heat conduction pipe 102 is embedded in the heat conduction main body 101, and the negative pressure fan 104 is embedded in the part of the heat conduction fins 103 away from the heat conduction main body 101. It can be understood that the heat conduction fins 103 are in contact with the heat conduction main body 101 to transfer heat between the two. The controller 80 is arranged at the position of the heat conduction fins 103 away from the heat conduction main body 101, that is, the controller 80 is arranged on the lower side of the negative pressure fan 104. Refer to Figure 2 The heat conduction pipe 102 in

[0075] is the heat exchange mechanism of the heat conduction device 10.

[0076] During the operation of the controller 80, heat is generated. Under the action of the negative pressure fan 104, the hot air around the controller 80 is quickly guided to the heat conduction fins 103 and the heat conduction main body 101, and heat exchange is carried out with the refrigerant flowing through the heat conduction pipe 102, thereby reducing the temperature in the controller compartment 1. Figure 2 In the heat conduction device 10 shown in

[0077] , two serpentine heat conduction pipes are arranged, and these two serpentine heat conduction pipes are located at different positions in the first direction. It can be understood that in the case of setting multiple heat conduction pipes 102, the aforementioned multiple heat conduction pipes 102 are in a parallel relationship, and the multiple heat conduction pipes 102 have a common inlet and a common outlet.

[0078] The heat conduction device 10 in this application can also be replaced with the following structure:

[0079] The heat conduction device 10 includes a heat conduction main body, a heat conduction pipe, heat conduction fins, and a positive pressure fan. Among them, along the first direction, the heat conduction main body, the heat conduction fins, and the positive pressure fan are arranged in sequence, the heat conduction pipe is embedded in the heat conduction main body, and a space for placing the controller is formed between the heat conduction fins and the positive pressure fan.

[0080] It can be understood that in each of the above-disclosed embodiments of the present application, the controller controls the flow path of the refrigerant among the devices based on the currently adopted mode, the operating state information of the air-conditioning system, and the temperature inside the controller cabin, which needs to be implemented based on the pipelines provided among the devices and the switching components provided on the pipelines.

[0081] Optionally, the inlet of the condenser 40 is communicated with the outlet of the compressor 50, the outlet of the condenser 40 is communicated with the inlet of the switching device 60, the inlet of the heat exchange mechanism in the air-conditioning system 20 is selectively communicated with the first outlet of the switching device 60 or the outlet of the heat exchange mechanism in the power cooling system 30, the outlet of the heat exchange mechanism in the air-conditioning system 20 is selectively communicated with the inlet of the heat exchange mechanism in the heat conduction device 10, the inlet of the heat exchange mechanism in the power cooling system 30 or the inlet of the compressor 50, the inlet of the heat exchange mechanism in the heat conduction device 10 is selectively communicated with the second outlet of the switching device 60 or the outlet of the heat exchange mechanism in the air-conditioning system 20, the inlet of the heat exchange mechanism in the power cooling system 30 is selectively communicated with the third outlet of the switching device 60, the outlet of the heat exchange mechanism in the heat conduction device 10 or the outlet of the heat exchange mechanism in the air-conditioning system 20, and the outlet of the heat exchange mechanism in the power cooling system 30 is selectively communicated with the inlet of the heat exchange mechanism in the air-conditioning system 20 or the inlet of the compressor 50. Additionally, expansion valves are respectively provided at the inlets of the heat exchange mechanism in the heat conduction device 10, the inlet of the heat exchange mechanism in the air-conditioning system 20, and the inlet of the heat exchange mechanism in the power cooling system 30.

[0082] Figure 4 A schematic structural diagram of the thermal management system is shown.

[0083] The inlet of the condenser 40 is communicated with the outlet of the compressor 50 through a pipeline. The outlet of the condenser 40 is communicated with the inlet of the switching device 60 through a pipeline. The first outlet of the switching device 60 is communicated with the inlet of the heat exchange mechanism in the air conditioning system 20 through a pipeline. The second outlet of the switching device 60 is communicated with the inlet of the heat exchange mechanism in the heat conduction device 10 through a pipeline. The third outlet of the switching device 60 is communicated with the inlet of the heat exchange mechanism in the power cooling system 30 through a pipeline. The outlet of the heat exchange mechanism in the heat conduction device 10 is communicated with the inlet of the heat exchange mechanism in the power cooling system 30 through a pipeline. The outlet of the heat exchange mechanism in the air conditioning system 20 is communicated with the first port of the first three-way valve 701 through a pipeline. The second port of the first three-way valve 701 is communicated with the inlet of the heat exchange mechanism in the heat conduction device 10 through a pipeline. The third port of the first three-way valve 701 is communicated with the inlet of the heat exchange mechanism in the power cooling system 30 through a pipeline. The outlet of the heat exchange mechanism in the air conditioning system 20 is also communicated with the first port of the first two-way valve 702 through a pipeline. The second port of the first two-way valve 702 is communicated with the inlet of the compressor 50 through a pipeline. The outlet of the heat exchange mechanism in the power cooling system 30 is communicated with the first port of the second three-way valve 703 through a pipeline. The second port of the second three-way valve 703 is communicated with the inlet of the heat exchange mechanism in the air conditioning system 20 through a pipeline. The third port of the second three-way valve 703 is communicated with the inlet of the compressor 50 through a pipeline. A first expansion valve 704 is provided at the inlet of the heat exchange mechanism in the air conditioning system 20. A second expansion valve 705 is provided at the inlet of the heat exchange mechanism in the heat conduction device 10. A third expansion valve 706 is provided at the inlet of the heat exchange mechanism in the power cooling system 30.

[0084] It can be understood that Figure 4 shows an arrangement of pipelines between the devices and the electric control valves on the pipelines. In implementation, the pipelines between the devices and the electric control valves arranged on the pipelines can be adjusted as long as a plurality of circuits described above can be formed.

[0085] Optionally, the switching device 60 can adopt the structure as shown in Figure 5 Specifically: The switching device 60 includes a third three-way valve 601 and a second two-way valve 602. The first port of the third three-way valve 601 and the first port of the second two-way valve 602 are both communicated with the outlet of the condenser 40. The first port of the third three-way valve 601 and the first port of the second two-way valve 602 are the inlets of the switching device 60. The second port of the third three-way valve 601 is the first outlet of the switching device 60. The third port of the third three-way valve 601 is the second outlet of the switching device 60. The second port of the second two-way valve 602 is the third outlet of the switching device 60.

[0086] Among them, the first three-way valve 701, the second three-way valve 702, and the third three-way valve 601 have the following states: closed; the first port is communicated with the second port; the first port is communicated with the third port. The first two-way valve 702 and the second two-way valve 602 have the following states: conducting; closed.

[0087] It should be noted that in the case where multiple pipelines need to achieve confluence, it can be achieved through joints. In addition, Figure 4 and Figure 5 the arrows in are used to indicate the flow direction of the refrigerant.

[0088] It can be understood that Figure 5 only one structure of the switching device 60 is shown in. In implementation, through the cooperation of multiple electric control valves, it is possible to present one inlet and three outlets to the outside, and the inlet can be communicated with each outlet respectively.

[0089] Next, in combination with Figure 5 the technical solutions disclosed in this application will be described in detail.

[0090] First, the controller obtains the ambient temperature outside the vehicle. If the ambient temperature outside the vehicle is higher than the first ambient temperature threshold, it is determined to enter the heat dissipation mode; if the ambient temperature outside the vehicle is lower than the second ambient temperature threshold, it is determined to enter the heating mode.

[0091] Second, in the heat dissipation mode, the controller obtains the working state information of the air conditioning system 20 and the temperature in the controller compartment 1; the controller determines whether the air conditioning system 20 starts the refrigeration function, and determines whether the temperature in the controller compartment 1 reaches the first temperature threshold or is lower than the second temperature threshold.

[0092] If the judgment result indicates that the air conditioning system 20 starts the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then the controller sends control instructions to each electric control valve to adjust the states of each electric control valve, so as to form the first loop disclosed above. Specifically: control the first port and the second port of the third three-way valve 601 to be communicated, control the second two-way valve 602 to be closed, control the first port and the second port of the first three-way valve 701 to be communicated, control the first two-way valve 702 to be closed, and control the first port and the third port of the second three-way valve 703 to be communicated.

[0093] If the judgment result shows that the air conditioning system 20 does not start the refrigeration function and the temperature in the controller compartment 1 reaches the first temperature threshold, then the controller sends control instructions to each electric control valve to adjust the states of each electric control valve, so as to form the second loop disclosed above. Specifically: control the first port and the third port of the third three-way valve 601 to be communicated, control the second two-way valve 602 to be closed, control the first three-way valve 701 to be closed, control the first two-way valve 702 to be closed, and control the first port and the third port of the second three-way valve 703 to be communicated.

[0094] If the judgment result indicates that the air conditioning system 20 starts the cooling function and the temperature in the controller compartment 1 is lower than the second temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the states of the respective electronic control valves, thereby forming the third loop disclosed above. Specifically: control the first port and the second port of the third three-way valve 601 to communicate, control the second two-way valve 602 to close, control the first port and the third port of the first three-way valve 701 to communicate, control the first two-way valve 702 to close, and control the first port and the third port of the second three-way valve 703 to communicate.

[0095] If the judgment result indicates that the air conditioning system 20 does not start the cooling function and the temperature in the controller compartment 1 is lower than the second temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the states of the respective electronic control valves, thereby forming the fourth loop disclosed above. Specifically: control the third three-way valve 601 to close, control the second two-way valve 602 to open (i.e., the first port and the second port communicate), control the first three-way valve 701 to close, control the first two-way valve 702 to close, and control the first port and the third port of the second three-way valve 703 to communicate.

[0096] It should be noted that when the working state of the air conditioning system 20 remains unchanged, if the temperature in the controller compartment 1 changes from being lower than the second temperature threshold to being within the temperature range formed by the first temperature threshold and the second temperature threshold, or if the temperature in the controller compartment 1 changes from being higher than the first temperature threshold to being within the temperature range formed by the first temperature threshold and the second temperature threshold, the states of the respective electronic control valves remain unchanged, thereby avoiding frequent state switching of the electronic control valves.

[0097] Third, in the heating mode, the controller obtains the working state information of the air conditioning system 20 and the temperature in the controller compartment 1; the controller determines whether the air conditioning system 20 starts the heating function and determines whether the temperature in the controller compartment 1 reaches the third temperature threshold or is lower than the fourth temperature threshold.

[0098] If the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller compartment 1 reaches the third temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the states of the respective electronic control valves, thereby forming the fifth loop disclosed above. Specifically: control the first port and the third port of the third three-way valve 601 to communicate, control the second two-way valve 602 to close, control the first three-way valve 701 to close, control the first two-way valve 702 to open (i.e., the first port and the second port communicate), and control the first port and the second port of the second three-way valve 703 to communicate.

[0099] Optionally, after forming the fifth loop and operating for a predetermined duration, if the temperature in the passenger compartment is lower than the target temperature of the air conditioning system 20, then the air conditioning system 20 starts its own heater.

[0100] Optionally, when the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller cabin 1 reaches the third temperature threshold, the controller further judges whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor 50 to reduce its speed.

[0101] If the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller cabin 1 is lower than the fourth temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the state of each electronic control valve, so as to form the sixth circuit disclosed above. Specifically: control the third three-way valve 601 to close, control the second two-way valve 602 to open (i.e., the first port and the second port are connected), control the first three-way valve 701 to close, control the first two-way valve 702 to open (i.e., the first port and the second port are connected), and control the first port and the second port of the second three-way valve 703 to be connected.

[0102] Optionally, after forming the sixth circuit and running for a predetermined duration, if the temperature in the passenger cabin is lower than the target temperature of the air conditioning system 20, then the air conditioning system 20 starts its own heater.

[0103] Optionally, when the judgment result indicates that the air conditioning system 20 starts the heating function and the temperature in the controller cabin 1 is lower than the fourth temperature threshold, the controller further judges whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor to reduce its speed.

[0104] If the judgment result indicates that the air conditioning system 20 does not start the heating function and the temperature in the controller cabin 1 reaches the third temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the state of each electronic control valve, so as to form the second circuit disclosed above. Specifically: control the first port and the third port of the third three-way valve 601 to be connected, control the second two-way valve 602 to close, control the first three-way valve 701 to close, control the first two-way valve 702 to close, and control the first port and the third port of the second three-way valve 703 to be connected.

[0105] If the judgment result indicates that the air conditioning system 20 does not start the heating function and the temperature in the controller cabin 1 is lower than the fourth temperature threshold, then the controller sends control instructions to each electronic control valve to adjust the state of each electronic control valve, so as to form the fourth circuit disclosed above. Specifically: control the third three-way valve 601 to close, control the second two-way valve 602 to open (i.e., the first port and the second port are connected), control the first three-way valve 701 to close, control the first two-way valve 702 to close, and control the first port and the third port of the second three-way valve 703 to be connected.

[0106] It should be noted that, when the operating state of the air conditioning system 20 remains unchanged, if the temperature in the controller cabin 1 changes from being higher than the third temperature threshold to being within the temperature range formed by the third temperature threshold and the fourth temperature threshold, or if the temperature in the controller cabin 1 changes from being lower than the fourth temperature threshold to being within the temperature range formed by the third temperature threshold and the fourth temperature threshold, the states of the electric control valves remain unchanged, thereby avoiding frequent state switching of the electric control valves.

[0107] The present application also discloses an automobile, including the thermal management system of any vehicle disclosed in the foregoing of the present application.

[0108] The present application also discloses a thermal management method for a vehicle. Among them, the vehicle includes a controller cabin, and the controller of the vehicle is arranged in the controller cabin. The thermal management system of the vehicle includes a heat conduction device arranged in the controller cabin, an air conditioning system arranged in the passenger cabin, a power cooling system, a compressor, and a condenser. The thermal management method is executed by the controller and includes:

[0109] In the heat dissipation mode, if the air conditioning system starts the refrigeration function and the temperature in the controller cabin reaches the first temperature threshold, the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a first loop;

[0110] In the heat dissipation mode, if the air conditioning system does not start the refrigeration function and the temperature in the controller cabin reaches the first temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a second loop.

[0111] Optionally, the controller obtains the ambient temperature outside the vehicle. If the ambient temperature outside the vehicle is higher than the first ambient temperature threshold, it is determined to enter the heat dissipation mode; if the ambient temperature outside the vehicle is lower than the second ambient temperature threshold, it is determined to enter the heating mode.

[0112] Optionally, the thermal management method disclosed in the present application further includes:

[0113] In the heat dissipation mode, if the air conditioning system starts the refrigeration function and the temperature in the controller cabin is lower than the second temperature threshold, the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a third loop, where the second temperature threshold is lower than the first temperature threshold.

[0114] Optionally, the thermal management method disclosed in the present application further includes:

[0115] In the heat dissipation mode, if the air conditioning system does not start the refrigeration function and the temperature in the controller cabin is lower than the second temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a fourth loop.

[0116] Optionally, the thermal management method disclosed in this application further includes:

[0117] In the heating mode, if the air conditioning system starts the heating function and the temperature in the controller cabin reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air conditioning system, and the compressor are sequentially connected to form a fifth loop.

[0118] Optionally, when the air conditioning system starts the heating function and the temperature in the controller cabin reaches the third temperature threshold, the controller further determines whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor to reduce its speed.

[0119] Optionally, the thermal management method disclosed in this application further includes:

[0120] In the heating mode, if the air conditioning system starts the heating function and the temperature in the controller cabin is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air conditioning system, and the compressor are sequentially connected to form a sixth loop.

[0121] Optionally, when the air conditioning system starts the heating function and the temperature in the controller cabin is lower than the fourth temperature threshold, the controller further determines whether the temperature of the power system is lower than the fifth temperature threshold. If it is lower than the fifth temperature threshold, the controller controls the compressor to reduce its speed.

[0122] Optionally, the thermal management method disclosed in this application further includes:

[0123] In the heating mode, if the air conditioning system does not start the heating function and the temperature in the controller cabin reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a second loop.

[0124] Optionally, the thermal management method disclosed in this application further includes:

[0125] In the heating mode, if the air conditioning system does not start the heating function and the temperature in the controller cabin is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, and the compressor are sequentially connected to form a fourth loop.

[0126] It should be noted that the technical features described in each embodiment in the specification can be substituted or combined with each other. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. The steps in the methods of the embodiments of the present application can be adjusted, combined, and deleted according to actual needs. The modules and sub-modules in the devices and equipment of the embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0127] It should also be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0128] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. The technical features in each embodiment can be arranged and combined to form new embodiments. For the heat management method and the vehicle disclosed in the embodiments, since they correspond to the heat management system disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the heat management system section.

[0129] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermal management system for a vehicle, characterized in that: The vehicle comprises a controller cabin, a controller of the vehicle is arranged in the controller cabin, and the thermal management system comprises: a heat conduction device arranged in the controller cabin; an air conditioning system arranged in the passenger cabin; a power cooling system; a compressor; and a condenser; The controller is used for: in the heat dissipation mode, if the air-conditioning system starts the cooling function and the temperature in the controller compartment reaches a first temperature threshold, the condenser, the heat exchange mechanism in the air-conditioning system, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a first loop; in the heat dissipation mode, if the air-conditioning system does not start the cooling function and the temperature in the controller compartment reaches the first temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a second loop; Wherein, the inlet of the heat exchange mechanism in the air-conditioning system, the inlet of the heat exchange mechanism in the heat conduction device and the inlet of the heat exchange mechanism in the power cooling system are respectively provided with expansion valves.

2. The thermal management system of a vehicle according to claim 1, characterized in that: The controller is also used for: In the heat dissipation mode, if the air-conditioning system starts the refrigeration function and the temperature in the controller cabin is lower than the second temperature threshold, the condenser, the heat exchange mechanism in the air-conditioning system, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a third circuit, wherein the second temperature threshold is lower than the first temperature threshold.

3. The thermal management system for a vehicle according to claim 2, characterized in that: The controller is also used for: In the heat dissipation mode, if the air conditioning system does not start the cooling function and the temperature in the controller compartment is lower than the second temperature threshold, the condenser, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a fourth loop.

4. The thermal management system for a vehicle according to claim 3, characterized in that: The controller is also used for: In heating mode, if the air-conditioning system starts the heating function and the temperature in the controller cabin reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air-conditioning system and the compressor are connected in sequence to form a fifth loop.

5. The thermal management system for a vehicle according to claim 4, characterized in that: The controller is also used for: In the heating mode, if the air-conditioning system starts the heating function and the temperature in the controller cabin is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system, the heat exchange mechanism in the air-conditioning system and the compressor are connected in sequence to form a sixth loop.

6. The thermal management system for a vehicle according to claim 5, characterized in that: The controller is also used for: In the heating mode, if the air conditioning system does not start the heating function and the temperature in the controller compartment reaches the third temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system and the compressor are sequentially connected to form the second loop; In the heating mode, if the air-conditioning system does not start the heating function and the temperature in the controller cabin is lower than the fourth temperature threshold, the condenser, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form the fourth circuit.

7. The thermal management system for a vehicle according to claim 1, characterized in that: The heat-conducting device includes a heat-conducting body, a heat-conducting pipe, heat-conducting fins and a negative pressure fan, wherein the heat-conducting body and the heat-conducting fins are arranged in sequence along a first direction, the heat-conducting pipe is embedded in the heat-conducting body, and the negative pressure fan is embedded in a portion of the heat-conducting fins away from the heat-conducting body.

8. The thermal management system for a vehicle according to claim 1, characterized in that: The inlet of the condenser is communicated with the outlet of the compressor, the outlet of the condenser is communicated with the inlet of the switching device, the inlet of the heat exchange mechanism in the air-conditioning system is selectively communicated with the first outlet of the switching device or the outlet of the heat exchange mechanism in the power cooling system, the outlet of the heat exchange mechanism in the air-conditioning system is selectively communicated with the inlet of the heat exchange mechanism in the heat conducting device, the inlet of the heat exchange mechanism in the power cooling system or the inlet of the compressor, the inlet of the heat exchange mechanism in the heat conducting device is selectively communicated with the second outlet of the switching device or the outlet of the heat exchange mechanism in the air-conditioning system, the inlet of the heat exchange mechanism in the power cooling system is selectively communicated with the third outlet of the switching device, the outlet of the heat exchange mechanism in the heat conducting device or the outlet of the heat exchange mechanism in the air-conditioning system, and the outlet of the heat exchange mechanism in the power cooling system is selectively communicated with the inlet of the heat exchange mechanism in the air-conditioning system or the inlet of the radiator.

9. A thermal management method for a vehicle, characterized in that: The vehicle includes a controller cabin, the controller of the vehicle is arranged in the controller cabin, the thermal management system of the vehicle includes: a heat conduction device arranged in the controller cabin; an air conditioning system arranged in the passenger cabin; a power cooling system; a compressor; and a condenser. The thermal management method includes: In the heat dissipation mode, if the air conditioning system starts the cooling function and the temperature in the controller compartment reaches a first temperature threshold, the condenser, the heat exchange mechanism in the air conditioning system, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a first loop; In the heat dissipation mode, if the air conditioning system does not start the cooling function and the temperature in the controller compartment reaches the first temperature threshold, the condenser, the heat exchange mechanism in the heat conduction device, the heat exchange mechanism in the power cooling system and the compressor are connected in sequence to form a second loop; Wherein, the inlet of the heat exchange mechanism in the air-conditioning system, the inlet of the heat exchange mechanism in the heat conduction device and the inlet of the heat exchange mechanism in the power cooling system are respectively provided with expansion valves.

10. An automobile, characterized in that: A thermal management system for a vehicle comprising the method of any one of claims 1 to 8.

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