A thermal management system and vehicle

Abstract

This application relates to the field of vehicle thermal management technology, disclosing a thermal management system and a vehicle. The thermal management system includes a heat pump air conditioning system, a cooling system, a heating system, and a refrigerator system. By setting up the heat pump air conditioning system, a first heat exchanger can heat water, and a second heat exchanger can cool water, thereby simultaneously producing hot and cold water. The heating system releases heat in the vehicle's condenser through heat exchange with the first heat exchanger, thus achieving the air conditioning heating function. The cooling system absorbs heat in the vehicle's evaporator through heat exchange with the second heat exchanger, thus achieving the air conditioning cooling function. The refrigerator system uses coils to achieve both heating and cooling functions through heat exchange with the first and second heat exchangers. This application embodiment achieves both cooling and heating functions for the refrigerator and air conditioner using a single heat pump air conditioning system, which helps reduce the number of vehicle parts and saves costs.

Description

Technical Field

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

[0002] The vehicle's thermal management system is one of the core technologies in modern vehicle engineering. By precisely regulating the temperature of key components, the thermal management system ensures the vehicle's performance, safety, and comfort. Vehicle thermal management systems include the engine cooling system, battery thermal management system, electric motor thermal management system, and cabin thermal management system.

[0003] In the relevant technical solutions, in vehicles equipped with refrigerators, the cabin thermal management system includes an air conditioning thermal management system and a refrigerator thermal management system. The air conditioning thermal management system and the refrigerator thermal management system are two systems that operate independently of each other, respectively realizing the cooling or heating of the air conditioner and the cooling or heating of the refrigerator.

[0004] However, using the above solution results in a larger number of vehicle parts and higher costs. Utility Model Content

[0005] In view of this, the present application provides a thermal management system and a vehicle. The present application provides a heat pump air conditioning system to realize the cooling and heating functions of a refrigerator and an air conditioner, which helps to reduce the number of vehicle parts and save costs.

[0006] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0007] This application provides a thermal management system, including: a heat pump air conditioning system, a cooling system, a heating system, and a refrigerator system;

[0008] The heat pump air conditioning system includes a compressor, a first heat exchanger, and a second heat exchanger, which are connected in series. The first heat exchanger is used for heating, and the second heat exchanger is used for cooling.

[0009] The heating system includes a hot water pipe and an in-vehicle condenser. Both ends of the hot water pipe are connected to the first heat exchanger, and the in-vehicle condenser is installed on the hot water pipe.

[0010] The cooling system includes a cold water pipeline and an in-vehicle evaporator. Both ends of the cold water pipeline are connected to the second heat exchanger, and the in-vehicle evaporator is installed on the cold water pipeline.

[0011] The refrigerator system includes a refrigerator and a coil, which is arranged around the outside of the refrigerator. Both ends of the coil can be selectively connected to the cold water pipe or the hot water pipe.

[0012] This embodiment of the application uses a heat pump air conditioning system, where a first heat exchanger heats water and a second heat exchanger cools it, thus simultaneously producing hot and cold water. The heating system releases heat in the vehicle's condenser through heat exchange with the first heat exchanger, achieving the air conditioning heating function. The cooling system absorbs heat in the vehicle's evaporator through heat exchange with the second heat exchanger, achieving the air conditioning cooling function. The refrigerator system uses coils to achieve both heating and cooling functions through heat exchange with the first and second heat exchangers. As described above, this embodiment of the application uses a single heat pump air conditioning system to achieve both heating and cooling functions for both a refrigerator and an air conditioner, which helps reduce the number of vehicle parts and saves costs.

[0013] In one possible implementation of this application, the heat pump air conditioning system further includes a refrigerant pipeline and an expansion valve. The compressor, the first heat exchanger, the expansion valve, and the second heat exchanger are connected in series on the refrigerant pipeline. The first end of the refrigerant pipeline is connected to the discharge end of the compressor, and the second end of the refrigerant pipeline is connected to the suction end of the compressor.

[0014] In this embodiment, the refrigerant circulates within the refrigerant pipeline. The refrigerant is compressed within the compressor, changing from a low-temperature, low-pressure vapor state to a high-temperature, high-pressure vapor state, and is discharged through the compressor's exhaust port. It then enters the first heat exchanger for heat exchange. The high-temperature, high-pressure vapor refrigerant releases heat and condenses into a high-pressure liquid refrigerant within the first heat exchanger. The first heat exchanger simultaneously generates heat to produce the hot water required by the heating system. The high-pressure liquid refrigerant then transforms into a low-temperature, low-pressure liquid refrigerant within the expansion valve. The low-temperature, low-pressure liquid refrigerant absorbs heat and evaporates into a low-temperature, low-pressure vapor within the second heat exchanger. The second heat exchanger simultaneously generates cooling water to produce the chilled water required by the cooling system. The low-temperature, low-pressure vapor refrigerant re-enters the compressor through the compressor's suction port, thus achieving refrigerant circulation. It is understood that the heat pump air conditioning system of this embodiment can simultaneously produce hot and cold water to meet both cooling and heating needs.

[0015] In one possible implementation of this application, the hot water pipeline includes a first hot water pipeline and a second hot water pipeline, and the heating system further includes a first three-way valve, a first water pump and a first auxiliary heat exchanger. The first end of the first hot water pipeline is connected to the first heat exchanger, the second end of the first hot water pipeline is connected to the first end of the first three-way valve, the first end of the second hot water pipeline is connected to the second end of the first three-way valve, the second end of the second hot water pipeline is connected to the first heat exchanger, and the first water pump, the first auxiliary heat exchanger and the vehicle interior condenser are connected in series on the second hot water pipeline.

[0016] The cold water pipeline includes a first cold water pipeline and a second cold water pipeline. The cooling system also includes a second three-way valve, a second water pump, and a second auxiliary heat exchanger. The first end of the first cold water pipeline is connected to the second heat exchanger, the second end of the first cold water pipeline is connected to the first end of the second three-way valve, the first end of the second cold water pipeline is connected to the second end of the second three-way valve, and the second end of the second cold water pipeline is connected to the second heat exchanger. The second water pump, the second auxiliary heat exchanger, and the in-vehicle evaporator are connected in series on the second cold water pipeline.

[0017] In this embodiment, the hot water, after heat exchange in the first heat exchanger, can flow into the second hot water pipe via the first hot water pipe. The first water pump is used to regulate the flow rate of the hot water in the pipe. The hot water can exchange heat through the vehicle's condenser to achieve the heating function of the air conditioner. The first auxiliary heat exchanger can be connected to other components on the vehicle (such as the battery) for heat exchange, or the first auxiliary heat exchanger can exchange heat with the outside air. Excess heat from the hot water in the heating system can be released through the first auxiliary heat exchanger.

[0018] Similarly, the cooled water after heat exchange in the second heat exchanger can flow into the second cold water pipe through the first cold water pipe, and the second water pump is used to regulate the flow rate of the cold water in the pipe. The cold water can exchange heat through the vehicle's evaporator to achieve the cooling function of the air conditioner. The second auxiliary heat exchanger can be connected to other parts of the vehicle (such as the battery) for heat exchange, or it can exchange heat with the outside air. Excess cooling capacity of the cold water in the cooling system can be released through heat exchange via the second auxiliary heat exchanger.

[0019] In one possible implementation of this application, the refrigerator system further includes a multi-way valve, a third hot water pipe, a fourth hot water pipe, a third cold water pipe, and a fourth cold water pipe; the first end of the coil is connected to the first end of the multi-way valve, and the second end of the coil is connected to the second end of the multi-way valve; the first end of the third hot water pipe is connected to the third end of the first three-way valve, the second end of the third hot water pipe is connected to the third end of the multi-way valve, the fourth end of the multi-way valve is connected to the first end of the fourth hot water pipe, and the second end of the fourth hot water pipe is connected to the second hot water pipe; the first end of the third cold water pipe is connected to the third end of the second three-way valve, the second end of the third cold water pipe is connected to the fifth end of the multi-way valve, the sixth end of the multi-way valve is connected to the first end of the fourth cold water pipe, and the second end of the fourth cold water pipe is connected to the second cold water pipe.

[0020] This application embodiment uses a multi-way valve to connect the coil with the heating system and the cooling system, thereby allowing the opening and closing of the corresponding valves on the multi-way valve to be controlled as needed to achieve the refrigerator's cooling and heating functions.

[0021] In one possible implementation of this application, when the thermal management system is in a first working state, the first and second ends of the first three-way valve are open, and the third end of the first three-way valve is closed.

[0022] Hot water flows out from the first heat exchanger, enters the second hot water pipe through the first hot water pipe, and flows back to the first heat exchanger after heat exchange in the vehicle condenser.

[0023] When the thermal management system is in the second working state, the first and second ends of the second three-way valve are open, and the third end of the second three-way valve is closed.

[0024] Cold water flows out from the second heat exchanger, enters the second cold water pipeline through the first cold water pipeline, and returns to the second heat exchanger after heat exchange in the evaporator inside the vehicle.

[0025] In this embodiment, hot water is obtained by exchanging heat with refrigerant in a first heat exchanger. The hot water enters a second hot water pipe through a first hot water pipe and releases heat at the condenser inside the vehicle, thereby realizing the air conditioning heating function. The hot water that has exchanged heat in the condenser inside the vehicle flows back to the first heat exchanger for heating, thus realizing the circulation of hot water.

[0026] Cold water is obtained by exchanging heat with refrigerant in the second heat exchanger. The cold water enters the second cold water pipeline through the first cold water pipeline and absorbs heat at the evaporator in the vehicle, thereby realizing the air conditioning cooling function. After exchanging heat in the evaporator in the vehicle, the cold water flows back to the second heat exchanger for cooling, thus realizing the circulation of cold water.

[0027] In one possible implementation of this application, when the thermal management system is in a third working state, the first and third ends of the first three-way valve are open, the second end of the first three-way valve is closed, and the first, second, third, and fourth ends of the multi-way valve are open.

[0028] Hot water flows out from the first heat exchanger, enters the third hot water pipeline through the first hot water pipeline, and then enters the coil after passing through the third and first ends of the multi-way valve. After heat exchange in the coil, the hot water enters the fourth hot water pipeline through the second and fourth ends of the multi-way valve, and then flows back to the first heat exchanger through the second hot water pipeline.

[0029] When the thermal management system is in the fourth working state, the first and third ends of the second three-way valve are open, the second end of the second three-way valve is closed, and the first, second, fifth, and sixth ends of the multi-way valve are open.

[0030] Cold water flows out from the second heat exchanger, enters the third cold water pipeline through the first cold water pipeline, and then enters the coil after passing through the fifth and first ends of the multi-way valve. After heat exchange in the coil, the cold water enters the fourth cold water pipeline through the second and sixth ends of the multi-way valve, and then flows back to the second heat exchanger through the second cold water pipeline.

[0031] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger. The hot water enters the third hot water pipe through the first hot water pipe and releases heat at the coil, thereby realizing the heating function of the refrigerator. The hot water after heat exchange in the coil flows back to the first heat exchanger for heating, thereby realizing the circulation of hot water.

[0032] Cold water is obtained by exchanging heat with refrigerant in the second heat exchanger. The cold water enters the third cold water pipeline through the first cold water pipeline and absorbs heat at the coil, thereby realizing the refrigerator's cooling function. After exchanging heat in the coil, the cold water flows back to the second heat exchanger for cooling, thus realizing the circulation of cold water.

[0033] In one possible implementation of this application, when the thermal management system is in the fifth working state, the first, second, and third ends of the first three-way valve are open, and the first, second, third, and fourth ends of the multi-way valve are open.

[0034] Hot water flows out from the first heat exchanger, enters the second and third hot water pipes through the first hot water pipe; the hot water entering the second hot water pipe exchanges heat with the condenser in the vehicle and then flows back to the first heat exchanger; the hot water entering the third hot water pipe enters the coil after passing through the third and first ends of the multi-way valve, exchanges heat in the coil, enters the fourth hot water pipe through the second and fourth ends of the multi-way valve, and then flows back to the first heat exchanger through the second hot water pipe.

[0035] When the thermal management system is in the sixth working state, the first, second, and third ends of the second three-way valve are open, and the first, second, fifth, and sixth ends of the multi-way valve are open.

[0036] Cold water flows out from the second heat exchanger, enters the second and third cold water pipelines through the first cold water pipeline; the cold water entering the second cold water pipeline exchanges heat with the evaporator inside the vehicle and then flows back to the second heat exchanger; the cold water entering the third cold water pipeline enters the coil after passing through the fifth and first ends of the multi-way valve, exchanges heat in the coil, enters the fourth cold water pipeline through the second and sixth ends of the multi-way valve, and then flows back to the second heat exchanger through the second cold water pipeline.

[0037] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger. The hot water enters the second and third hot water pipes through the first hot water pipe, releases heat at the condenser inside the vehicle to realize the air conditioning heating function, and releases heat at the coil to realize the refrigerator heating function. The hot water that has exchanged heat at the condenser and coil inside the vehicle flows back to the first heat exchanger for heating, thereby realizing the circulation of hot water.

[0038] Cold water is obtained by exchanging heat with refrigerant in the second heat exchanger. The cold water enters the second and third cold water pipes through the first cold water pipe. It absorbs heat at the evaporator in the vehicle to realize the air conditioning cooling function, and absorbs heat at the coil to realize the refrigerator cooling function. After exchanging heat at the evaporator and coil in the vehicle, the cold water flows back to the second heat exchanger for cooling, thus realizing the circulation of cold water.

[0039] In one possible implementation of this application, when the thermal management system is in the seventh working state, the first and third ends of the first three-way valve are open, the second end of the first three-way valve is closed, the first, second, third and fourth ends of the multi-way valve are open, the first and second ends of the second three-way valve are open, and the third end of the second three-way valve is closed.

[0040] Hot water flows out from the first heat exchanger, enters the third hot water pipeline through the first hot water pipeline, and then enters the coil after passing through the third and first ends of the multi-way valve. After heat exchange in the coil, the hot water enters the fourth hot water pipeline through the second and fourth ends of the multi-way valve, and then flows back to the first heat exchanger through the second hot water pipeline.

[0041] Cold water flows out from the second heat exchanger, enters the second cold water pipeline through the first cold water pipeline, and returns to the second heat exchanger after heat exchange in the evaporator inside the vehicle.

[0042] In this embodiment, hot water is obtained by exchanging heat with refrigerant in a first heat exchanger. The hot water enters a third hot water pipe through a first hot water pipe and releases heat at the coil, thereby achieving the heating function of a refrigerator. After heat exchange in the coil, the hot water flows back to the first heat exchanger for heating, thus achieving hot water circulation. Cold water is obtained by exchanging heat with refrigerant in a second heat exchanger. The cold water enters a second cold water pipe through a first cold water pipe and absorbs heat at the evaporator inside the vehicle, thereby achieving the air conditioning cooling function. After heat exchange in the evaporator inside the vehicle, the cold water flows back to the second heat exchanger for cooling, thus achieving cold water circulation.

[0043] In one possible implementation of this application, when the thermal management system is in the eighth working state, the first and second ends of the first three-way valve are open, the third end of the first three-way valve is closed, the first, second, fifth and sixth ends of the multi-way valve are open, the first and third ends of the second three-way valve are open, and the second end of the second three-way valve is closed.

[0044] Hot water flows out from the first heat exchanger, enters the second hot water pipe through the first hot water pipe, and flows back to the first heat exchanger after heat exchange in the vehicle condenser.

[0045] Cold water flows out from the second heat exchanger, enters the third cold water pipeline through the first cold water pipeline, and then enters the coil after passing through the fifth and first ends of the multi-way valve. After heat exchange in the coil, the cold water enters the fourth cold water pipeline through the second and sixth ends of the multi-way valve, and then flows back to the second heat exchanger through the second cold water pipeline.

[0046] This embodiment of the application obtains hot water by exchanging heat with refrigerant in a first heat exchanger. The hot water enters a second hot water pipe through a first hot water pipe and releases heat at the condenser inside the vehicle, thereby achieving the heating function of the air conditioner. After heat exchange in the condenser, the hot water flows back to the first heat exchanger for heating, thus realizing the circulation of hot water. Alternatively, cold water is obtained by exchanging heat with refrigerant in a second heat exchanger. The cold water enters a third cold water pipe through a first cold water pipe and absorbs heat at the coil, thereby achieving the cooling function of a refrigerator. After heat exchange in the coil, the cold water flows back to the second heat exchanger for cooling, thus realizing the circulation of cold water.

[0047] This application also provides a vehicle including any of the thermal management systems described above.

[0048] Because the vehicle in this embodiment of the application adopts the above-mentioned thermal management system, it can realize the cooling and heating functions of a refrigerator and an air conditioner through a heat pump air conditioning system, which helps to reduce the number of vehicle parts and save costs. Attached Figure Description

[0049] Figure 1 A simplified structural diagram of the thermal management system provided in the embodiments of this application;

[0050] Figure 2 A simplified equivalent structural diagram of the thermal management system provided in the embodiments of this application when it is in its first working state;

[0051] Figure 3 A simplified equivalent structural diagram of the thermal management system provided in this application embodiment when it is in the second working state;

[0052] Figure 4A simplified equivalent structure diagram of the thermal management system provided in this application embodiment when it is in the third working state;

[0053] Figure 5 A simplified equivalent structure diagram of the thermal management system provided in the embodiments of this application when it is in the fourth working state;

[0054] Figure 6 A simplified equivalent structure diagram of the thermal management system provided in this application embodiment when it is in the fifth working state;

[0055] Figure 7 A simplified equivalent structural diagram of the thermal management system provided in this application embodiment when it is in the sixth working state;

[0056] Figure 8 A simplified equivalent structure diagram of the thermal management system provided in the embodiments of this application when it is in the seventh working state;

[0057] Figure 9 A simplified equivalent structural diagram of the thermal management system provided in the embodiments of this application when it is in the eighth working state.

[0058] Figure label:

[0059] 110 - Refrigerant piping; 120 - Compressor; 130 - First heat exchanger; 140 - Expansion valve; 150 - Second heat exchanger;

[0060] 210 - First hot water pipe; 220 - Second hot water pipe; 230 - First three-way valve; 240 - First water pump; 250 - First auxiliary heat exchanger; 260 - Interior condenser;

[0061] 310 - First cold water pipeline; 320 - Second cold water pipeline; 330 - Second three-way valve; 340 - Second water pump; 350 - Second auxiliary heat exchanger; 360 - Evaporator inside the vehicle;

[0062] 410 - Refrigerator; 420 - Coil; 430 - Multi-way valve; 440 - Third hot water pipe; 450 - Fourth hot water pipe; 460 - Third cold water pipe; 470 - Fourth cold water pipe. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0064] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0065] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0066] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0067] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0068] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0069] As described in the background section, in the related technical solutions, the vehicle's air conditioning thermal management system and refrigerator thermal management system are two independently operating systems, which results in a large number of parts in the vehicle and higher costs.

[0070] In view of this, the embodiments of this application aim to provide a thermal management system and a vehicle. By setting up a heat pump air conditioning system, a first heat exchanger can heat water, and a second heat exchanger can cool water, thereby simultaneously producing hot and cold water. The heating system releases heat in the condenser inside the vehicle through heat exchange with the first heat exchanger, thereby realizing the heating function of the air conditioning. The cooling system absorbs heat in the evaporator inside the vehicle through heat exchange with the second heat exchanger, thereby realizing the cooling function of the air conditioning. The refrigerator system realizes the heating and cooling functions of the refrigerator through heat exchange with the first and second heat exchangers and using coils. The embodiments of this application realize the cooling and heating functions of the refrigerator and air conditioner through a single heat pump air conditioning system, which helps to reduce the number of vehicle parts and save costs.

[0071] The embodiments of this application are described in detail below with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0072] This application provides a thermal management system and a vehicle. The thermal management system is used to regulate the temperature of the vehicle's air conditioning and refrigerator. It should be noted that the vehicle in this application can refer to large vehicles, small vehicles, special-purpose vehicles, etc. For example, according to vehicle type, the vehicle in this application can be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other types of vehicles. Vehicles generally have wheels and a body, and a thermal management system is installed within the body. The thermal management system ensures the vehicle's performance, safety, and comfort by precisely regulating the temperature of key components.

[0073] Please refer to Figure 1 This application provides a thermal management system, including: a heat pump air conditioning system, a cooling system, a heating system, and a refrigerator system.

[0074] The heat pump air conditioning system includes a compressor 120, a first heat exchanger 130, and a second heat exchanger 150, which are connected in series. The first heat exchanger 130 is used for heating, and the second heat exchanger 150 is used for cooling. In other words, the heat pump air conditioning system can release heat at the first heat exchanger 130 to heat an external medium, and absorb heat at the second heat exchanger 150 to lower the temperature of the external medium. This external medium can be, for example, water.

[0075] The heating system includes a hot water pipe and an in-vehicle condenser 260. Both ends of the hot water pipe are connected to the first heat exchanger 130, and the in-vehicle condenser 260 is located on the hot water pipe. It is understood that the water in the hot water pipe can be heated in the first heat exchanger 130 to form hot water, which can then exchange heat at the in-vehicle condenser 260 to release heat into the vehicle interior, thus achieving the heating function of the air conditioning system.

[0076] The cooling system includes chilled water pipes and an in-vehicle evaporator 360. Both ends of the chilled water pipes are connected to a second heat exchanger 150, and the in-vehicle evaporator 360 is located on the chilled water pipes. Understandably, the water in the chilled water pipes can be cooled in the second heat exchanger 150 to form chilled water. This chilled water can then exchange heat at the in-vehicle evaporator 360 to absorb heat from the vehicle interior, thus achieving the air conditioning cooling function.

[0077] The refrigerator system includes a refrigerator 410 and a coil 420. The coil 420 is wound around the outside of the refrigerator 410, for example, it can be wound inside the cavity between the outer and inner walls of the refrigerator 410. The specific number of turns of the coil 420 can be set according to needs. Both ends of the coil 420 can be selectively connected to either a cold water line or a hot water line. It is understood that when the coil 420 is connected to a hot water line, it can use the hot water in the hot water line to heat the refrigerator 410, thereby achieving the refrigerator's heating function. When the coil 420 is connected to a cold water line, it can use the cold water in the cold water line to absorb heat from the refrigerator 410, thereby achieving the refrigerator's cooling function.

[0078] This embodiment of the application sets up a heat pump air conditioning system, enabling the first heat exchanger 130 to heat water and the second heat exchanger 150 to cool water, thereby simultaneously producing hot and cold water. The heating system releases heat in the vehicle's condenser 260 through heat exchange with the first heat exchanger 130, thus achieving the air conditioning heating function. The cooling system absorbs heat in the vehicle's evaporator 360 through heat exchange with the second heat exchanger 150, thus achieving the air conditioning cooling function. The refrigerator system uses coil 420 to achieve the heating and cooling functions of the refrigerator 410 through heat exchange with the first heat exchanger 130 and the second heat exchanger 150. As can be seen from the above description, this embodiment of the application achieves the cooling and heating functions of the refrigerator 410 and the air conditioner through a single heat pump air conditioning system, which helps to reduce the number of vehicle parts and save costs.

[0079] Please continue to refer to Figure 1 The heat pump air conditioning system of this application embodiment also includes a refrigerant pipeline 110 and an expansion valve 140. The compressor 120, the first heat exchanger 130, the expansion valve 140 and the second heat exchanger 150 are connected in series on the refrigerant pipeline 110. The first end of the refrigerant pipeline 110 is connected to the exhaust end of the compressor 120, and the second end of the refrigerant pipeline 110 is connected to the suction end of the compressor 120.

[0080] In this embodiment, the refrigerant circulates within the refrigerant pipeline 110. The refrigerant is compressed within the compressor 120, changing from a low-temperature, low-pressure vapor state to a high-temperature, high-pressure vapor state, and is discharged through the exhaust end of the compressor 120, subsequently entering the first heat exchanger 130 for heat exchange. The high-temperature, high-pressure vapor refrigerant releases heat and condenses into a high-pressure liquid refrigerant within the first heat exchanger 130, which simultaneously produces hot water to generate the hot water required by the heating system. The high-pressure liquid refrigerant becomes a low-temperature, low-pressure liquid refrigerant within the expansion valve 140. The low-temperature, low-pressure liquid refrigerant absorbs heat and evaporates into a low-temperature, low-pressure vapor within the second heat exchanger 150, which simultaneously cools water to generate the chilled water required by the cooling system. The low-temperature, low-pressure vapor refrigerant re-enters the compressor 120 through the suction end. It is understood that the heat pump air conditioning system of this embodiment can simultaneously produce hot and cold water to meet both cooling and heating needs.

[0081] Please continue to refer to Figure 1 The hot water pipeline in this embodiment includes a first hot water pipeline 210 and a second hot water pipeline 220. The heating system also includes a first three-way valve 230, a first water pump 240, and a first auxiliary heat exchanger 250. The first end of the first hot water pipeline 210 is connected to the first heat exchanger 130, and the second end of the first hot water pipeline 210 is connected to the first end of the first three-way valve 230. The first end of the second hot water pipeline 220 is connected to the second end of the first three-way valve 230, and the second end of the second hot water pipeline 220 is connected to the first heat exchanger 130. The first water pump 240, the first auxiliary heat exchanger 250, and the vehicle condenser 260 are connected in series on the second hot water pipeline 220.

[0082] In this embodiment, the hot water after heat exchange in the first heat exchanger 130 can flow into the second hot water pipe 220 via the first hot water pipe 210. The first water pump 240 is used to regulate the flow rate of the hot water in the pipes. The hot water can exchange heat through the vehicle condenser 260 to achieve the heating function of the air conditioner. It should be noted that the first auxiliary heat exchanger 250 in this embodiment can be connected to other parts on the vehicle (such as the battery) for heat exchange, or the first auxiliary heat exchanger 250 can exchange heat with the outside air. Excess heat from the hot water in the heating system can be released through the first auxiliary heat exchanger 250.

[0083] The cold water pipeline includes a first cold water pipeline 310 and a second cold water pipeline 320. The cooling system also includes a second three-way valve 330, a second water pump 340, and a second auxiliary heat exchanger 350. The first end of the first cold water pipeline 310 is connected to the second heat exchanger 150, and the second end of the first cold water pipeline 310 is connected to the first end of the second three-way valve 330. The first end of the second cold water pipeline 320 is connected to the second end of the second three-way valve 330, and the second end of the second cold water pipeline 320 is connected to the second heat exchanger 150. The second water pump 340, the second auxiliary heat exchanger 350, and the in-vehicle evaporator 360 are connected in series on the second cold water pipeline 320.

[0084] In this embodiment, the cooled water after heat exchange in the second heat exchanger 150 can flow into the second cold water pipe 320 via the first cold water pipe 310. The second water pump 340 is used to regulate the flow rate of the cold water in the pipe. The cold water can exchange heat through the vehicle evaporator 360 to achieve the cooling function of the air conditioner. It should be noted that the second auxiliary heat exchanger 350 in this embodiment can be connected to other parts on the vehicle (such as the battery) for heat exchange, or the second auxiliary heat exchanger 350 can exchange heat with the outside air. Excess cooling capacity of the cold water in the cooling system can be released through heat exchange via the second auxiliary heat exchanger 350.

[0085] Please continue to refer to Figure 1 The refrigerator system in this embodiment further includes a multi-way valve 430, a third hot water pipe 440, a fourth hot water pipe 450, a third cold water pipe 460, and a fourth cold water pipe 470. The first end of the coil 420 is connected to the first end of the multi-way valve 430, and the second end of the coil 420 is connected to the second end of the multi-way valve 430. The first end of the third hot water pipe 440 is connected to the third end of the first three-way valve 230, the second end of the third hot water pipe 440 is connected to the third end of the multi-way valve 430, the fourth end of the multi-way valve 430 is connected to the first end of the fourth hot water pipe 450, and the second end of the fourth hot water pipe 450 is connected to the second hot water pipe 220. The first end of the third cold water pipe 460 is connected to the third end of the second three-way valve 330, the second end of the third cold water pipe 460 is connected to the fifth end of the multi-way valve 430, the sixth end of the multi-way valve 430 is connected to the first end of the fourth cold water pipe 470, and the second end of the fourth cold water pipe 470 is connected to the second cold water pipe 320.

[0086] In other words, the embodiments of this application can achieve the connection between the coil 420 and the heating and cooling systems through the multi-way valve 430, thereby enabling the opening and closing of the corresponding valves on the multi-way valve 430 as needed to realize the refrigeration and heating functions of the refrigerator.

[0087] Please refer to Figure 2When the thermal management system of this application embodiment is in the first working state (i.e., in the air conditioning heating state), the first and second ends of the first three-way valve 230 are open, and the third end of the first three-way valve 230 is closed.

[0088] Hot water flows out from the first heat exchanger 130, enters the second hot water pipe 220 through the first hot water pipe 210, and flows back to the first heat exchanger 130 after heat exchange in the vehicle condenser 260.

[0089] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger 130. The hot water enters the second hot water pipe 220 through the first hot water pipe 210 and releases heat at the vehicle condenser 260, thereby realizing the air conditioning heating function. The hot water after heat exchange in the vehicle condenser 260 flows back to the first heat exchanger 130 for heating, thereby realizing the circulation of hot water.

[0090] Please continue to refer to Figure 2 In this state, the first and second ends of the second three-way valve 330 are open, and the third end of the second three-way valve 330 is closed. The cold water generated by the second heat exchanger 150 can enter the second cold water pipeline 320 through the first cold water pipeline 310, and after heat exchange in the second auxiliary heat exchanger 350, it flows back to the second heat exchanger 150, thereby realizing the circulation of cold water.

[0091] Please refer to Figure 3 When the thermal management system of this application embodiment is in the second working state (i.e., in the air conditioning cooling state), the first and second ends of the second three-way valve 330 are open, and the third end of the second three-way valve 330 is closed.

[0092] Cold water flows out from the second heat exchanger 150, enters the second cold water pipe 320 through the first cold water pipe 310, and returns to the second heat exchanger 150 after heat exchange in the evaporator 360 inside the vehicle.

[0093] In this embodiment, cold water is obtained by exchanging heat with refrigerant in the second heat exchanger 150. The cold water enters the second cold water pipe 320 through the first cold water pipe 310 and absorbs heat at the vehicle evaporator 360, thereby realizing the air conditioning cooling function. After exchanging heat in the vehicle evaporator 360, the cold water flows back to the second heat exchanger 150 for cooling, thereby realizing the circulation of cold water.

[0094] Please continue to refer to Figure 3 In this state, the first and second ends of the first three-way valve 230 are open, and the third end of the first three-way valve 230 is closed. The hot water generated by the first heat exchanger 130 can enter the second hot water pipe 220 through the first hot water pipe 210, and after heat exchange in the first auxiliary heat exchanger 250, it flows back to the first heat exchanger 130, thereby realizing the circulation of hot water.

[0095] Please refer to Figure 4 When the thermal management system of this application embodiment is in the third working state (i.e., in the refrigerator heating state), the first and third ends of the first three-way valve 230 are open, the second end of the first three-way valve 230 is closed, and the first, second, third and fourth ends of the multi-way valve 430 are open.

[0096] Hot water flows out from the first heat exchanger 130, enters the third hot water pipe 440 through the first hot water pipe 210, and then enters the coil 420 after passing through the third and first ends of the multi-way valve 430. After heat exchange in the coil 420, the hot water enters the fourth hot water pipe 450 through the second and fourth ends of the multi-way valve 430, and then flows back to the first heat exchanger 130 through the second hot water pipe 220.

[0097] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger 130. The hot water enters the third hot water pipe 440 through the first hot water pipe 210 and releases heat at the coil 420, thereby realizing the heating function of the refrigerator 410. The hot water after heat exchange in the coil 420 flows back to the first heat exchanger 130 for heating, thereby realizing the circulation of hot water.

[0098] Please continue to refer to Figure 4 In this state, the first and second ends of the second three-way valve 330 are open, and the third end of the second three-way valve 330 is closed. The cold water generated by the second heat exchanger 150 can enter the second cold water pipeline 320 through the first cold water pipeline 310, and after heat exchange in the second auxiliary heat exchanger 350, it flows back to the second heat exchanger 150, thereby realizing the circulation of cold water.

[0099] Please refer to Figure 5 When the thermal management system of this application embodiment is in the fourth working state (i.e., in the refrigerator cooling state), the first and third ends of the second three-way valve 330 are open, the second end of the second three-way valve 330 is closed, and the first, second, fifth and sixth ends of the multi-way valve 430 are open.

[0100] Cold water flows out from the second heat exchanger 150, enters the third cold water pipeline 460 through the first cold water pipeline 310, and then enters the coil 420 through the fifth and first ends of the multi-way valve 430. After heat exchange in the coil 420, the cold water enters the fourth cold water pipeline 470 through the second and sixth ends of the multi-way valve 430, and then flows back to the second heat exchanger 150 through the second cold water pipeline 320.

[0101] In this embodiment, cold water is obtained by exchanging heat with refrigerant in the second heat exchanger 150. The cold water enters the third cold water pipe 460 through the first cold water pipe 310 and absorbs heat at the coil 420, thereby realizing the cooling function of the refrigerator 410. After exchanging heat in the coil 420, the cold water flows back to the second heat exchanger 150 for cooling, thereby realizing the circulation of cold water.

[0102] Please continue to refer to Figure 5 In this state, the first and second ends of the first three-way valve 230 are open, and the third end of the first three-way valve 230 is closed. The hot water generated by the first heat exchanger 130 can enter the second hot water pipe 220 through the first hot water pipe 210, and after heat exchange in the first auxiliary heat exchanger 250, it flows back to the first heat exchanger 130, thereby realizing the circulation of hot water.

[0103] Please refer to Figure 6 When the thermal management system of this application embodiment is in the fifth working state (i.e., when the refrigerator and air conditioner are heating at the same time), the first end, the second end and the third end of the first three-way valve 230 are opened, and the first end, the second end, the third end and the fourth end of the multi-way valve 430 are opened.

[0104] Hot water flows out from the first heat exchanger 130 and enters the second hot water pipe 220 and the third hot water pipe 440 through the first hot water pipe 210. The hot water entering the second hot water pipe 220 exchanges heat in the vehicle condenser 260 and then flows back to the first heat exchanger 130. The hot water entering the third hot water pipe 440 passes through the third and first ends of the multi-way valve 430 and then enters the coil 420. After heat exchange in the coil 420, it passes through the second and fourth ends of the multi-way valve 430 and then enters the fourth hot water pipe 450, and finally flows back to the first heat exchanger 130 through the second hot water pipe 220.

[0105] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger 130. The hot water enters the second hot water pipe 220 and the third hot water pipe 440 through the first hot water pipe 210. Heat is released at the vehicle condenser 260 to realize the air conditioning heating function. Heat is released at the coil 420 to realize the refrigerator 410 heating function. The hot water after heat exchange at the vehicle condenser 260 and the coil 420 flows back to the first heat exchanger 130 for heating, thus realizing the circulation of hot water.

[0106] Please continue to refer to Figure 6 In this state, the first and second ends of the second three-way valve 330 are open, and the third end of the second three-way valve 330 is closed. The cold water generated by the second heat exchanger 150 can enter the second cold water pipeline 320 through the first cold water pipeline 310, and after heat exchange in the second auxiliary heat exchanger 350, it flows back to the second heat exchanger 150, thereby realizing the circulation of cold water.

[0107] Please continue to refer to Figure 7 When the thermal management system of this application embodiment is in the sixth working state (i.e., when the refrigerator and air conditioner are cooling at the same time), the first, second and third ends of the second three-way valve 330 are opened, and the first, second, fifth and sixth ends of the multi-way valve 430 are opened.

[0108] Cold water flows out from the second heat exchanger 150, enters the second cold water line 320 and the third cold water line 460 through the first cold water line 310. The cold water entering the second cold water line 320 exchanges heat in the evaporator 360 inside the vehicle and then flows back to the second heat exchanger 150. The cold water entering the third cold water line 460 passes through the fifth and first ends of the multi-way valve 430 and then enters the coil 420. After heat exchange in the coil 420, it passes through the second and sixth ends of the multi-way valve 430 and then enters the fourth cold water line 470, before flowing back to the second heat exchanger 150 through the second cold water line 320.

[0109] In this embodiment, cold water is obtained by exchanging heat with refrigerant in the second heat exchanger 150. The cold water enters the second cold water pipe 320 and the third cold water pipe 460 through the first cold water pipe 310. It absorbs heat at the evaporator 360 in the vehicle to realize the air conditioning cooling function, and absorbs heat at the coil 420 to realize the refrigerator 410 cooling function. The cold water after heat exchange at the evaporator 360 and the coil 420 in the vehicle flows back to the second heat exchanger 150 for cooling, thereby realizing the circulation of cold water.

[0110] Please continue to refer to Figure 7 In this state, the first and second ends of the first three-way valve 230 are open, and the third end of the first three-way valve 230 is closed. The hot water generated by the first heat exchanger 130 can enter the second hot water pipe 220 through the first hot water pipe 210, and after heat exchange in the first auxiliary heat exchanger 250, it flows back to the first heat exchanger 130, thereby realizing the circulation of hot water.

[0111] Please refer to Figure 8 When the thermal management system of this application embodiment is in the seventh working state (i.e., in the refrigerator heating and air conditioning cooling state), the first and third ends of the first three-way valve 230 are open, the second end of the first three-way valve 230 is closed, the first, second, third and fourth ends of the multi-way valve 430 are open, the first and second ends of the second three-way valve 330 are open, and the third end of the second three-way valve 330 is closed.

[0112] Hot water flows out from the first heat exchanger 130, enters the third hot water pipe 440 through the first hot water pipe 210, and then enters the coil 420 after passing through the third and first ends of the multi-way valve 430. After heat exchange in the coil 420, the hot water enters the fourth hot water pipe 450 through the second and fourth ends of the multi-way valve 430, and then flows back to the first heat exchanger 130 through the second hot water pipe 220.

[0113] Cold water flows out from the second heat exchanger 150, enters the second cold water pipe 320 through the first cold water pipe 310, and returns to the second heat exchanger 150 after heat exchange in the evaporator 360 inside the vehicle.

[0114] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger 130. The hot water enters the third hot water pipe 440 through the first hot water pipe 210 and releases heat at the coil 420, thereby realizing the heating function of the refrigerator 410. The hot water after heat exchange in the coil 420 flows back to the first heat exchanger 130 for heating, thus realizing the circulation of hot water. Cold water is obtained by exchanging heat with refrigerant in the second heat exchanger 150. The cold water enters the second cold water pipe 320 through the first cold water pipe 310 and absorbs heat at the evaporator 360 in the vehicle, thereby realizing the air conditioning cooling function. The cold water after heat exchange in the evaporator 360 in the vehicle flows back to the second heat exchanger 150 for cooling, thus realizing the circulation of cold water.

[0115] In other possible implementations, if the temperature of the hot water after heat exchange in coil 420 is still high, the hot water can be further heat-exchanged through the first auxiliary heat exchanger 250 on the second hot water pipeline 220 before flowing back to the first heat exchanger 130.

[0116] Please refer to Figure 9 When the thermal management system of this application embodiment is in the eighth working state (i.e., in the refrigerator cooling and air conditioner heating state), the first and second ends of the first three-way valve 230 are open, the third end of the first three-way valve 230 is closed, the first, second, fifth and sixth ends of the multi-way valve 430 are open, the first and third ends of the second three-way valve 330 are open, and the second end of the second three-way valve 330 is closed.

[0117] Hot water flows out from the first heat exchanger 130, enters the second hot water pipe 220 through the first hot water pipe 210, and flows back to the first heat exchanger 130 after heat exchange in the vehicle condenser 260.

[0118] Cold water flows out from the second heat exchanger 150, enters the third cold water pipeline 460 through the first cold water pipeline 310, and then enters the coil 420 through the fifth and first ends of the multi-way valve 430. After heat exchange in the coil 420, the cold water enters the fourth cold water pipeline 470 through the second and sixth ends of the multi-way valve 430, and then flows back to the second heat exchanger 150 through the second cold water pipeline 320.

[0119] In this embodiment, hot water is obtained by exchanging heat with refrigerant in the first heat exchanger 130. The hot water enters the second hot water pipe 220 through the first hot water pipe 210 and releases heat at the vehicle condenser 260, thereby realizing the heating function of the air conditioner. The hot water after heat exchange in the vehicle condenser 260 flows back to the first heat exchanger 130 for heating, thus realizing the circulation of hot water. Cold water is obtained by exchanging heat with refrigerant in the second heat exchanger 150. The cold water enters the third cold water pipe 460 through the first cold water pipe 310 and absorbs heat at the coil 420, thereby realizing the cooling function of the refrigerator 410. The cold water after heat exchange in the coil 420 flows back to the second heat exchanger 150 for cooling, thus realizing the circulation of cold water.

[0120] In other possible implementations, if the temperature of the cold water after heat exchange in coil 420 is still low, the cold water can be further heat-exchanged through the second auxiliary heat exchanger 350 on the second cold water pipeline 320 before flowing back to the second heat exchanger 150.

[0121] This application also provides a vehicle including the above-described thermal management system.

[0122] Because the vehicle in this embodiment of the application adopts the above-mentioned thermal management system, it can realize the cooling and heating functions of a refrigerator and an air conditioner through a heat pump air conditioning system, which helps to reduce the number of vehicle parts and save costs.

[0123] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A thermal management system, characterized in that, include: Heat pump air conditioning systems, cooling systems, heating systems, and refrigeration systems; The heat pump air conditioning system includes a compressor (120), a first heat exchanger (130), and a second heat exchanger (150). The compressor (120), the first heat exchanger (130), and the second heat exchanger (150) are connected in series. The first heat exchanger (130) is used for heating, and the second heat exchanger (150) is used for cooling. The heating system includes a hot water pipe and an in-vehicle condenser (260). Both ends of the hot water pipe are connected to the first heat exchanger (130), and the in-vehicle condenser (260) is installed on the hot water pipe. The cooling system includes a cold water pipe and an in-vehicle evaporator (360). Both ends of the cold water pipe are connected to the second heat exchanger (150), and the in-vehicle evaporator (360) is installed on the cold water pipe. The refrigerator system includes a refrigerator (410) and a coil (420). The coil (420) is arranged around the outside of the refrigerator (410), and both ends of the coil (420) can be selectively connected to the cold water pipe or the hot water pipe.

2. The thermal management system according to claim 1, characterized in that, The heat pump air conditioning system also includes a refrigerant pipeline (110) and an expansion valve (140). The compressor (120), the first heat exchanger (130), the expansion valve (140), and the second heat exchanger (150) are connected in series on the refrigerant pipeline (110). The first end of the refrigerant pipeline (110) is connected to the exhaust end of the compressor (120), and the second end of the refrigerant pipeline (110) is connected to the suction end of the compressor (120).

3. The thermal management system according to claim 2, characterized in that, The hot water pipeline includes a first hot water pipeline (210) and a second hot water pipeline (220). The heating system also includes a first three-way valve (230), a first water pump (240), and a first auxiliary heat exchanger (250). The first end of the first hot water pipeline (210) is connected to the first heat exchanger (130), and the second end of the first hot water pipeline (210) is connected to the first end of the first three-way valve (230). The first end of the second hot water pipeline (220) is connected to the second end of the first three-way valve (230), and the second end of the second hot water pipeline (220) is connected to the first heat exchanger (130). The first water pump (240), the first auxiliary heat exchanger (250), and the vehicle condenser (260) are connected in series on the second hot water pipeline (220). The cold water pipeline includes a first cold water pipeline (310) and a second cold water pipeline (320). The cooling system also includes a second three-way valve (330), a second water pump (340), and a second auxiliary heat exchanger (350). The first end of the first cold water pipeline (310) is connected to the second heat exchanger (150), the second end of the first cold water pipeline (310) is connected to the first end of the second three-way valve (330), the first end of the second cold water pipeline (320) is connected to the second end of the second three-way valve (330), and the second end of the second cold water pipeline (320) is connected to the second heat exchanger (150). The second water pump (340), the second auxiliary heat exchanger (350), and the in-vehicle evaporator (360) are connected in series on the second cold water pipeline (320).

4. The thermal management system according to claim 3, characterized in that, The refrigerator system also includes a multi-way valve (430), a third hot water pipe (440), a fourth hot water pipe (450), a third cold water pipe (460), and a fourth cold water pipe (470); the first end of the coil (420) is connected to the first end of the multi-way valve (430), and the second end of the coil (420) is connected to the second end of the multi-way valve (430); the first end of the third hot water pipe (440) is connected to the third end of the first three-way valve (230), and the second end of the third hot water pipe (440) is connected to the third end of the multi-way valve (430). The fourth end of the multi-way valve (430) is connected to the first end of the fourth hot water pipe (450), and the second end of the fourth hot water pipe (450) is connected to the second hot water pipe (220); the first end of the third cold water pipe (460) is connected to the third end of the second three-way valve (330), the second end of the third cold water pipe (460) is connected to the fifth end of the multi-way valve (430), the sixth end of the multi-way valve (430) is connected to the first end of the fourth cold water pipe (470), and the second end of the fourth cold water pipe (470) is connected to the second cold water pipe (320).

5. The thermal management system according to claim 4, characterized in that, When the thermal management system is in the first working state, the first and second ends of the first three-way valve (230) are open, and the third end of the first three-way valve (230) is closed. Hot water flows out from the first heat exchanger (130), enters the second hot water pipe (220) through the first hot water pipe (210), and flows back to the first heat exchanger (130) after heat exchange in the vehicle condenser (260). When the thermal management system is in the second working state, the first and second ends of the second three-way valve (330) are open, and the third end of the second three-way valve (330) is closed; Cold water flows out from the second heat exchanger (150), enters the second cold water pipeline (320) through the first cold water pipeline (310), and flows back to the second heat exchanger (150) after heat exchange in the vehicle evaporator (360).

6. The thermal management system according to claim 4, characterized in that, When the thermal management system is in the third working state, the first and third ends of the first three-way valve (230) are open, the second end of the first three-way valve (230) is closed, and the first, second, third and fourth ends of the multi-way valve (430) are open. Hot water flows out from the first heat exchanger (130), enters the third hot water pipe (440) through the first hot water pipe (210), and then enters the coil (420) through the third and first ends of the multi-way valve (430). After heat exchange in the coil (420), the hot water enters the fourth hot water pipe (450) through the second and fourth ends of the multi-way valve (430), and then flows back to the first heat exchanger (130) through the second hot water pipe (220). When the thermal management system is in the fourth working state, the first and third ends of the second three-way valve (330) are open, the second end of the second three-way valve (330) is closed, and the first, second, fifth and sixth ends of the multi-way valve (430) are open. Cold water flows out from the second heat exchanger (150), enters the third cold water pipeline (460) through the first cold water pipeline (310), and then enters the coil (420) through the fifth and first ends of the multi-way valve (430). After heat exchange in the coil (420), the cold water enters the fourth cold water pipeline (470) through the second and sixth ends of the multi-way valve (430), and then flows back to the second heat exchanger (150) through the second cold water pipeline (320).

7. The thermal management system according to claim 4, characterized in that, When the thermal management system is in the fifth working state, the first, second and third ends of the first three-way valve (230) are open, and the first, second, third and fourth ends of the multi-way valve (430) are open. Hot water flows out from the first heat exchanger (130), enters the second hot water pipe (220) and the third hot water pipe (440) through the first hot water pipe (210); the hot water entering the second hot water pipe (220) exchanges heat with the vehicle condenser (260) and then flows back to the first heat exchanger (130); the hot water entering the third hot water pipe (440) enters the coil (420) through the third and first ends of the multi-way valve (430), exchanges heat in the coil (420), enters the fourth hot water pipe (450) through the second and fourth ends of the multi-way valve (430), and then flows back to the first heat exchanger (130) through the second hot water pipe (220); When the thermal management system is in the sixth working state, the first, second and third ends of the second three-way valve (330) are open, and the first, second, fifth and sixth ends of the multi-way valve (430) are open. Cold water flows out from the second heat exchanger (150), enters the second cold water pipeline (320) and the third cold water pipeline (460) through the first cold water pipeline (310); the cold water entering the second cold water pipeline (320) exchanges heat with the evaporator (360) in the vehicle and then flows back to the second heat exchanger (150); the cold water entering the third cold water pipeline (460) enters the coil (420) through the fifth and first ends of the multi-way valve (430), exchanges heat in the coil (420), enters the fourth cold water pipeline (470) through the second and sixth ends of the multi-way valve (430), and flows back to the second heat exchanger (150) through the second cold water pipeline (320).

8. The thermal management system according to claim 4, characterized in that, When the thermal management system is in the seventh working state, the first and third ends of the first three-way valve (230) are open, the second end of the first three-way valve (230) is closed, the first, second, third and fourth ends of the multi-way valve (430) are open, the first and second ends of the second three-way valve (330) are open, and the third end of the second three-way valve (330) is closed. Hot water flows out from the first heat exchanger (130), enters the third hot water pipe (440) through the first hot water pipe (210), and then enters the coil (420) through the third and first ends of the multi-way valve (430). After heat exchange in the coil (420), the hot water enters the fourth hot water pipe (450) through the second and fourth ends of the multi-way valve (430), and then flows back to the first heat exchanger (130) through the second hot water pipe (220). Cold water flows out from the second heat exchanger (150), enters the second cold water pipeline (320) through the first cold water pipeline (310), and flows back to the second heat exchanger (150) after heat exchange in the vehicle evaporator (360).

9. The thermal management system according to claim 4, characterized in that, When the thermal management system is in the eighth working state, the first and second ends of the first three-way valve (230) are open, the third end of the first three-way valve (230) is closed, the first, second, fifth and sixth ends of the multi-way valve (430) are open, the first and third ends of the second three-way valve (330) are open, and the second end of the second three-way valve (330) is closed. Hot water flows out from the first heat exchanger (130), enters the second hot water pipe (220) through the first hot water pipe (210), and flows back to the first heat exchanger (130) after heat exchange in the vehicle condenser (260). Cold water flows out from the second heat exchanger (150), enters the third cold water pipeline (460) through the first cold water pipeline (310), and then enters the coil (420) through the fifth and first ends of the multi-way valve (430). After heat exchange in the coil (420), the cold water enters the fourth cold water pipeline (470) through the second and sixth ends of the multi-way valve (430), and then flows back to the second heat exchanger (150) through the second cold water pipeline (320).

10. A vehicle, characterized in that, Includes the thermal management system as described in any one of claims 1-9.

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