Thermal management system and vehicle

Abstract

The utility model relates to the technical field of vehicle heat management, and provides a heat management system and a vehicle, the heat management system comprises a compressor, a box body, an in-vehicle heat exchanger, a fan, a heat exchange loop and an external heat exchanger, the in-vehicle heat exchanger and the fan are arranged in the box body, and the in-vehicle heat exchanger, the external heat exchanger and the compressor are arranged in the heat exchange loop; a refrigerant is arranged in the heat exchange loop, the external heat exchanger is used for exchanging heat with the external environment, the refrigerant is configured to be capable of releasing heat through condensation and absorbing heat through evaporation in the in-vehicle heat exchanger, and the fan is used for driving airflow in the box body to enter a passenger compartment. According to the thermal management system and the vehicle, wind resistance in the box body can be reduced, and energy consumption is reduced.

Description

TECHNICAL FIELD

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

[0002] The thermal management system of the vehicle is used to realize refrigeration in the vehicle. In the related art, an evaporator, a condenser and a fan are arranged in an air conditioning box. The evaporator reduces the air flow temperature of the box body by evaporative heat absorption, the condenser increases the temperature of the air flow in the box body by condensing heat release, and then the fan drives the air flow in the box body to enter the passenger cabin. However, the arrangement of the condenser and the evaporator will increase the air resistance in the box body, so that the power of the fan needs to be increased or a fan with larger power needs to be selected to obtain the same air volume, which will increase the cost and power consumption. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the embodiments of the present application aim to provide a thermal management system and a vehicle, which can reduce the air resistance in the box body and reduce energy consumption.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the embodiments of the present application is as follows:

[0005] The embodiments of the present application disclose a thermal management system, comprising a compressor, a box body, an in-vehicle heat exchanger, a fan, a heat exchange circuit and an external heat exchanger. The in-vehicle heat exchanger and the fan are arranged in the box body. The in-vehicle heat exchanger, the external heat exchanger and the compressor are arranged in the heat exchange circuit. The heat exchange circuit is provided with refrigerant. The external heat exchanger is used for heat exchange with the external environment. The refrigerant is configured to condense heat release and evaporate heat absorption in the in-vehicle heat exchanger. The fan is used to drive the air flow in the box body to enter the passenger cabin.

[0006] In an embodiment, the heat exchange circuit comprises an external heat exchange pipe section and a return pipe section. The external heat exchanger is arranged in the external heat exchange pipe section. The first end of the return pipe section is communicated with the inlet of the compressor. The outlet of the compressor is selectively communicated with the first end of the external heat exchange pipe section or the first end of the in-vehicle heat exchanger. The second end of the external heat exchange pipe section is selectively communicated with the second end of the in-vehicle heat exchanger or the second end of the return pipe section. The second end of the in-vehicle heat exchanger is communicated with the first end of the external heat exchange pipe section. The first end of the in-vehicle heat exchanger is selectively connected to the second end of the return pipe section.

[0007] In an embodiment, the heat exchange circuit comprises a first refrigeration pipe section, a first heating pipe section, a second refrigeration pipe section, a second heating pipe section, a third refrigeration pipe section and a third heating pipe section, one end of the first refrigeration pipe section and one end of the first heating pipe section are communicated with an outlet of the compressor, the other end of the first refrigeration pipe section is communicated with a first end of the external heat exchange pipe section, the other end of the first heating pipe section is communicated with a first end of the in-vehicle heat exchanger, a second end of the external heat exchange pipe section is communicated with a second end of the in-vehicle heat exchanger through the second refrigeration pipe section and communicated with a second end of the return pipe section through the third heating pipe section, the first end of the in-vehicle heat exchanger is communicated with the second end of the return pipe section through the third refrigeration pipe section, two ends of the second heating pipe section are respectively communicated with the second end of the in-vehicle heat exchanger and the first end of the external heat exchange pipe section.

[0008] The heat management system comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, the first electromagnetic valve is arranged on the first refrigeration pipe section, the second electromagnetic valve is arranged on the first heating pipe section, and the third electromagnetic valve is arranged on the third heating pipe section.

[0009] In an embodiment, the heat management system comprises a first check valve and a second check valve, the first check valve is arranged on the second refrigeration pipe section, and an outlet of the first check valve is communicated with the second end of the in-vehicle heat exchanger, the second check valve is arranged on the third refrigeration pipe section, and an outlet of the second check valve is communicated with the second end of the return pipe section.

[0010] In an embodiment, the heat management system comprises a gas-liquid separator, and the gas-liquid separator is arranged on the return pipe section.

[0011] In an embodiment, the heat management system comprises an electric regulating valve and a first electronic expansion valve, the electric regulating valve is arranged at the first end of the external heat exchange pipe section, and the first electronic expansion valve is arranged at the second end of the in-vehicle heat exchanger.

[0012] In an embodiment, the heat management system comprises a circulation loop, a battery pack, a battery heat exchanger, a first connecting pipe and a second connecting pipe, the battery pack and the battery heat exchanger are arranged on the circulation loop, opposite two ends of the first connecting pipe are respectively communicated with the battery heat exchanger and the second end of the in-vehicle heat exchanger, one end of the second connecting pipe is communicated with the battery heat exchanger, the other end of the second connecting pipe is communicated with the first end of the in-vehicle heat exchanger and is connected to the second end of the return pipe section in an openable and closable manner.

[0013] In an embodiment, the second connecting pipe comprises a second main pipe section, a second secondary pipe section and a second sub-pipe section, the thermal management system comprises a third one-way valve, one end of the second main pipe section is communicated with the battery heat exchanger, the other end of the second main pipe section is communicated with one end of the second secondary pipe section and one end of the second sub-pipe section, the other end of the second secondary pipe section is communicated with a first end of the in-vehicle heat exchanger, the other end of the second sub-pipe section is communicated with a second end of the return pipe section, the third one-way valve is arranged in the second sub-pipe section, and an outlet of the third one-way valve is communicated with the second end of the return pipe section.

[0014] In an embodiment, the thermal management system comprises a heating pipeline, a heating water pump, a heating core, a heater and a water-water heat exchanger, the heating core is arranged in the box, the water-water heat exchanger is arranged in parallel with the battery heat exchanger in the circulation loop, and opposite ends of the heating pipeline are connected with the water-water heat exchanger.

[0015] In an embodiment, the thermal management system further comprises a second electronic expansion valve, and the second electronic expansion valve is arranged in the first connecting pipe.

[0016] Another aspect of the embodiments of the present application discloses a vehicle comprising the thermal management system according to any one of the embodiments.

[0017] The embodiments of the present application disclose a thermal management system and a vehicle, by sharing the in-vehicle heat exchanger in the heating mode and the cooling mode, on the one hand, not only the occupied space of the heat exchange accessories in the box can be reduced, so that the air resistance in the box can be reduced, the operating power and the energy consumption of the fan can be reduced, the noise during the operation of the thermal management system can be reduced, and the quietness in the passenger cabin can be improved, on the other hand, the problem of the increase of the cost and the overall weight due to the use of the fan with larger power because of the insufficient air volume can be effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural schematic diagram of the thermal management system provided by the embodiments of the present application is shown;

[0019] Figure 2 A structural schematic diagram of the thermal management system provided by another embodiment of the present application is shown, wherein the passenger cabin and the battery pack are in the cooling mode, and the arrows in the figure represent the flow direction of the refrigerant;

[0020] Figure 3 A structural schematic diagram of the thermal management system provided by still another embodiment of the present application is shown, wherein the passenger cabin is in the dehumidification mode, and the arrows in the figure represent the flow direction of the refrigerant;

[0021] Figure 4The structural schematic diagram of the heat management system provided by another embodiment of the present application is shown in the figure, in which the passenger cabin and the battery pack are in a heating mode. The heating is achieved by cooperation of the heater, the heating water pump, the heater core, the water-water heat exchanger, the heating pipeline and the like, and the compressor, the external heat exchanger, the heat exchange circuit and the in-vehicle heat exchanger. The arrows in the figure represent the flow direction of the refrigerant.

[0022] Legend of reference signs

[0023] 100, heat management system; 1, compressor; 2, tank; 3, in-vehicle heat exchanger; 3a, first end of the in-vehicle heat exchanger; 3b, second end of the in-vehicle heat exchanger; 4, fan; 5, heat exchange circuit; 51, external heat exchange pipe section; 51a, first end of the external heat exchange pipe section; 51b, second end of the external heat exchange pipe section; 52, return pipe section; 52a, first end of the return pipe section; 52b, second end of the return pipe section; 53, first refrigeration pipe section; 54, first heating pipe section; 55, second refrigeration pipe section; 56, second heating pipe section; 57, third refrigeration pipe section; 58, third heating pipe section; 6, external heat exchanger; 7, electronic water pump; 8, heating pipeline; 9, heating water pump; 10, heater core; 11, heater; 12, water-water heat exchanger; 13, communication circuit; 14, second three-way valve; A, first electromagnetic valve; B, second electromagnetic valve; C, third electromagnetic valve; D, fourth electromagnetic valve; E, first check valve; F, second check valve; G, third check valve; H, first three-way valve; J, gas-liquid separator; L, electric regulating valve; M, first electronic expansion valve; N, second electronic expansion valve; O, circulation circuit; P, battery pack; Q, battery heat exchanger; R, first connecting pipe; T, second connecting pipe; T1, second main pipe section; T2, second secondary pipe section; T3, second sub-pipe section. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as the explanation and description of the purpose of the present application, and should not be regarded as improper limitation on the present application.

[0025] The present application will be further described in detail below in combination with the drawings and specific embodiments. The "first", "second" and the like in the embodiments of the present application are only for the purpose of description, and should not be understood as indicating or implying the relative importance or implicitly including at least one feature. In the description of the embodiments of the present application, the meaning of "a plurality of" is at least two, such as two, three and the like, unless otherwise specifically limited.

[0026] The present application provides a heat management system 100 in one embodiment, please refer to Figures 1 to 4The heat management system 100 comprises a compressor 1, a box 2, an in-vehicle heat exchanger 3, a fan 4, a heat exchange circuit 5 and an external heat exchanger 6, the in-vehicle heat exchanger 3 and the fan 4 are arranged in the box 2, the in-vehicle heat exchanger 3, the external heat exchanger 6 and the compressor 1 are arranged in the heat exchange circuit 5, the heat exchange circuit 5 is arranged with refrigerant, the external heat exchanger 6 is used for heat exchange with the external environment, the refrigerant is configured to be able to condense and release heat in the in-vehicle heat exchanger 3 and evaporate and absorb heat, and the fan 4 is used to drive the airflow in the box 2 into the passenger cabin.

[0027] The heat management system 100 provided by the application, the in-vehicle heat exchanger 3 and the fan 4 are arranged in the box 2, the in-vehicle heat exchanger 3, the external heat exchanger 6 and the compressor 1 are arranged in the heat exchange circuit 5, the compressor 1 can compress the refrigerant in the heat exchange circuit into high-temperature and high-pressure gas, when heating is needed, the high-temperature and high-pressure gas can enter the in-vehicle heat exchanger 3 through the heat exchange circuit 5, condense and release heat in the in-vehicle heat exchanger 3, so as to heat the airflow in the box 2, then the fan 4 can drive the airflow into the passenger cabin, so as to realize heating of the passenger cabin, and the refrigerant after heat exchange can enter the external heat exchanger 6 through the heat exchange circuit 5, evaporate and absorb heat in the external heat exchanger 6, so as to absorb heat in the external environment, realize transfer of heat in the external environment to the passenger cabin, and then the refrigerant after heat exchange with the external environment can flow back to the compressor 1 through the heat exchange circuit 5 for compression, and the cycle is repeated; when cooling and / or dehumidification is needed, the high-temperature and high-pressure gas can enter the external heat exchanger 6 through the heat exchange circuit 5, condense and release heat in the external heat exchanger 6, so as to exchange heat with the external environment and release heat to the external environment, the refrigerant after heat exchange with the external environment can enter the in-vehicle heat exchanger 3 through the heat exchange circuit 5, evaporate and absorb heat in the in-vehicle heat exchanger 3, so as to reduce the temperature of the airflow in the box 2 and make the wet air flowing through condense, then the fan 4 drives the airflow into the passenger cabin, so as to realize cooling and dehumidification of the passenger cabin, and the refrigerant after heat exchange with the airflow in the box 2 can flow back to the compressor 1 through the heat exchange circuit 5 for compression, and the cycle is repeated. In this way, by sharing the in-vehicle heat exchanger 3 in the heating mode and the cooling mode, on the one hand, not only can the occupied space of the heat exchange accessories in the box 2 be reduced, so as to reduce the air resistance in the box 2 and the operating power and energy consumption of the fan 4, but also can reduce the noise during operation of the heat management system 100 and improve the quietness in the passenger cabin; on the other hand, the problem of cost increase and overall mass increase caused by using a larger power fan 4 due to insufficient air volume can be effectively solved.

[0028] It should be noted that the in-vehicle heat exchanger 3 here is a single device, not a general term of the condenser and the evaporator, that is, the in-vehicle heat exchanger 3 has both the condensing and heat releasing function of the condenser and the evaporating and heat absorbing function of the evaporator.

[0029] For example, in an embodiment, the fan 4 can be a blower.

[0030] In one embodiment, referring to Figures 1 to 4 The heat exchange circuit 5 comprises an external heat exchange pipe section 51 and a return pipe section 52, the external heat exchanger 6 is arranged in the external heat exchange pipe section 51, the first end 52a of the return pipe section is communicated with the inlet of the compressor 1, the outlet of the compressor 1 is selectively communicated with the first end 51a of the external heat exchange pipe section or the first end 3a of the in-vehicle heat exchanger, the second end 51b of the external heat exchange pipe section is selectively communicated with the second end 3b of the in-vehicle heat exchanger or the second end 52b of the return pipe section, the second end 3b of the in-vehicle heat exchanger is communicated with the first end 51a of the external heat exchange pipe section, and the first end 3a of the in-vehicle heat exchanger is selectively connected with the second end 52b of the return pipe section.

[0031] For example, the inlet of the external heat exchanger 6 can be communicated with the first end 51a of the external heat exchange pipe section, and the outlet of the external heat exchanger 6 can be communicated with the second end 51b of the external heat exchange pipe section.

[0032] Here, in the heating mode, the outlet of the compressor 1 can be communicated with the first end 3a of the in-vehicle heat exchanger, and the second end 51b of the external heat exchange pipe section can be communicated with the second end 52b of the return pipe section, so that the high-temperature and high-pressure gas generated by the compressor 1 can enter the in-vehicle heat exchanger 3 to be condensed and release heat, so as to heat the temperature of the airflow in the box 2, and then the fan 4 drives the airflow to enter the passenger compartment to realize the heating of the passenger compartment, and then the heat-exchanged refrigerant can enter the first end 51a of the external heat exchange pipe section through the second end 3b of the in-vehicle heat exchanger, evaporate and absorb heat in the external heat exchanger 6, so as to realize the transfer of heat in the external environment to the passenger compartment, and then the heat-exchanged refrigerant can enter the second end 52b of the return pipe section through the second end 51b of the external heat exchange pipe section, enter the compressor 1 through the return pipe section 52, and circulate repeatedly.

[0033] In the cooling mode and / or dehumidification mode, the outlet of the compressor 1 can be communicated with the first end 51a of the external heat exchange pipe section, the second end 51b of the external heat exchange pipe section can be communicated with the second end 3b of the in-vehicle heat exchanger, and the first end 3a of the in-vehicle heat exchanger can be communicated with the second end 52b of the return pipe section, so that the high-temperature and high-pressure gas generated by the compressor 1 can enter the first end 51a of the external heat exchange pipe section, be condensed and release heat in the external heat exchanger 6, and exchange heat with the external environment, then enter the second end 3b of the in-vehicle heat exchanger through the second end 51b of the external heat exchange pipe section, evaporate and absorb heat in the in-vehicle heat exchanger 3, so as to reduce the temperature of the airflow in the box 2, and make the wet air flowing through condense, then the fan 4 drives the airflow to enter the passenger compartment to realize the cooling and dehumidification of the passenger compartment, and finally the heat-exchanged refrigerant enters the second end 52b of the return pipe section from the first end 3a of the in-vehicle heat exchanger and flows back to the inlet of the compressor 1, and circulates repeatedly.

[0034] In one embodiment, referring to Figures 1 to 4, the heat exchange circuit 5 includes a first refrigeration pipe section 53, a first heating pipe section 54, a second refrigeration pipe section 55, a second heating pipe section 56, a third refrigeration pipe section 57 and a third heating pipe section 58, one end of the first refrigeration pipe section 53 and the first heating pipe section 54 are communicated with the outlet of the compressor 1, the other end of the first refrigeration pipe section 53 is communicated with the first end 51a of the external heat exchange pipe section, the other end of the first heating pipe section 54 is communicated with the first end 3a of the in-vehicle heat exchanger, the second end 51b of the external heat exchange pipe section is communicated with the second end 3b of the in-vehicle heat exchanger through the second refrigeration pipe section 55 and the second end 52b of the return pipe section through the third heating pipe section 58 respectively, the first end 3a of the in-vehicle heat exchanger is communicated with the second end 52b of the return pipe section through the third refrigeration pipe section 57, and the two ends of the second heating pipe section 56 are communicated with the second end 3b of the in-vehicle heat exchanger and the first end 51a of the external heat exchange pipe section respectively.

[0035] The thermal management system 100 includes a first solenoid operated valve A (SOV), a second solenoid operated valve B and a third solenoid operated valve C, the first solenoid operated valve A is arranged on the first refrigeration pipe section 53, the second solenoid operated valve B is arranged on the first heating pipe section 54, and the third solenoid operated valve C is arranged on the third heating pipe section 58.

[0036] Here, in the heating mode, the first solenoid operated valve A can be closed to cut off the first refrigeration pipe section 53, the second solenoid operated valve B can be opened to turn on the first heating pipe section 54, and the third solenoid operated valve C can be opened to turn on the third heating pipe section 58, so that the high-temperature and high-pressure gas flow generated by the compressor 1 compressing the refrigerant can enter the first end 3a of the in-vehicle heat exchanger through the first heating pipe section 54, and condense and release heat in the in-vehicle heat exchanger 3 to heat the gas flow in the box body 2, then the fan 4 drives the gas flow into the passenger compartment to realize heating of the passenger compartment, and then the heat-exchanged refrigerant can enter the first end 51a of the external heat exchange pipe section from the second end 3b of the in-vehicle heat exchanger through the second heating pipe section 56, evaporate and absorb heat in the external heat exchanger 6, and then the refrigerant exchanged with the external environment can enter the second end 52b of the return pipe section through the third heating pipe section 58 to flow back to the inlet of the compressor 1, and circulate repeatedly.

[0037] In the refrigeration mode or dehumidification mode, the first electromagnetic valve A can be opened to connect the first refrigeration pipe section 53, the second electromagnetic valve B can be closed to cut off the first heating pipe section 54, and the third electromagnetic valve C can be closed to cut off the third heating pipe section 58. In this way, the high-temperature and high-pressure gas generated by the compressor 1 can enter the first end 51a of the external heat exchange pipe section through the first refrigeration pipe section 53, condense and release heat in the external heat exchanger 6, exchange heat with the external environment, and then the heat-exchanged refrigerant can enter the second end 3b of the in-vehicle heat exchanger through the second end 51b of the external heat exchange pipe section and the second refrigeration pipe section 55. The in-vehicle heat exchanger 3 evaporates and absorbs heat to lower the temperature of the airflow in the box 2, and the humid air flowing through it condenses when it is cooled, thereby dehumidifying while cooling. Then, the refrigerant can exchange heat with the airflow in the box 2 and then enter the second end 52b of the return pipe section from the first end 3a of the in-vehicle heat exchanger through the third refrigeration pipe section 57, and finally flow back to the inlet of the compressor 1 for compression, and the cycle continues.

[0038] In this way, by setting multiple valves, the corresponding pipe sections can be cut off or connected to achieve refrigeration, cooling or dehumidification, energy saving, high efficiency and high reliability.

[0039] In an embodiment, the thermal management system 100 includes a first one-way valve E and a second one-way valve F. The first one-way valve E is arranged in the second refrigeration pipe section 55, and the outlet of the first one-way valve E is in communication with the second end 3b of the in-vehicle heat exchanger. The second one-way valve F is arranged in the third refrigeration pipe section 57, and the outlet of the second one-way valve F is in communication with the second end 52b of the return pipe section.

[0040] In this way, in the refrigeration mode, when the heat-exchanged refrigerant flows out of the second end 3b of the in-vehicle heat exchanger, the arrangement of the first one-way valve E can reduce the refrigerant flowing from the second end 51b of the external heat exchange pipe section through the second refrigeration pipe section 55, the third heating pipe section 58 and the return pipe section 52 into the inlet of the compressor. The arrangement of the second one-way valve F can reduce the refrigerant in the return pipe section 52 from flowing through the second one-way valve F into the first end 3a of the in-vehicle heat exchanger.

[0041] For example, in an embodiment, referring to Figures 1 to 4 The thermal management system 100 includes a first three-way valve H, which can connect one end of the second refrigeration pipe section 55 relative to the external heat exchange pipe section 51, the second end 3b of the in-vehicle heat exchanger, and one end of the second refrigeration pipe section 55 relative to the external heat exchange pipe section 51.

[0042] For example, in an embodiment, referring to Figures 1 to 4 The thermal management system 100 includes a gas-liquid separator J arranged in the return pipe section 52.

[0043] For example, the gas-liquid separator J can be arranged between the inlet of the compressor 1 and the third refrigeration pipe section 57 in the return pipe section 52.

[0044] In this way, by setting the gas-liquid separator J in the return pipe section 52, the liquid refrigerant in the gas-liquid mixture can be effectively separated out, not only can reduce the mechanical impact and damage of the incompressibility of the liquid refrigerant to the compressor 1, improve the service life of the compressor 1; but also make the gas refrigerant entering the compressor 1 more pure, thereby improving the subsequent heat exchange effect.

[0045] In an embodiment, referring to Figures 1 to 4 , the thermal management system 100 includes an electric regulating valve L (ERV) and a first electronic expansion valve M (EXV), the electric regulating valve L is arranged at the first end 51a of the external heat exchange pipe section, and the first electronic expansion valve M is arranged at the second end 3b of the in-vehicle heat exchanger.

[0046] For example, the electric regulating valve L can be arranged at the inlet of the external pipe heat exchange pipe section close to the external heat exchanger 6, and the first electronic expansion valve M can be arranged between the first three-way valve H and the in-vehicle heat exchanger 3.

[0047] Here, by arranging the electric regulating valve L at the first end of the external pipe heat exchange pipe section, the opening degree and flow of the electric regulating valve L can be automatically adjusted by receiving the signal sent by the controller or control system in the thermal management system 100, the fluid parameters can be accurately controlled, the degree of automation is high, and the energy consumption and emissions can be reduced by automatically adjusting the opening degree and flow of the electric regulating valve L, which is energy-saving and environmentally friendly. By arranging the first electronic expansion valve M at the second end 3b of the in-vehicle heat exchanger, the flow of the refrigerant can be automatically adjusted according to the changes of the external temperature and pressure, which has high accuracy, good heat exchange efficiency and energy-saving effect.

[0048] In an embodiment, referring to Figures 1 to 4 , the thermal management system 100 includes a circulation loop O, a battery pack P, a battery heat exchanger Q, a first connecting pipe R and a second connecting pipe T, the battery pack P and the battery heat exchanger Q are arranged on the circulation loop O, opposite ends of the first connecting pipe R are respectively communicated with the battery heat exchanger Q and the second end 3b of the in-vehicle heat exchanger, one end of the second connecting pipe T is communicated with the battery heat exchanger Q, the other end of the second connecting pipe T is communicated with the first end 3a of the in-vehicle heat exchanger and is connected to the second end 52b of the return pipe section in an openable and closable manner.

[0049] For example, one end of the first connecting pipe R can be communicated with the battery heat exchanger Q, and the other end of the first connecting pipe R can be communicated with the second refrigeration pipe section 55 and located between the first one-way valve and the first three-way pipe.

[0050] Here, in the heating mode, the other end of the second connecting pipe T is communicated with the first end 3a of the in-vehicle heat exchanger, so that the high-temperature and high-pressure gas generated by the compressor 1 can enter the battery heat exchanger Q through the second connecting pipe T when entering the in-vehicle heat exchanger 3 from the first end 3a of the in-vehicle heat exchanger 3, and is condensed and releases heat in the battery heat exchanger Q, thereby heating the refrigerant in the circulating loop O, and then the refrigerant after heat exchange with the circulating loop O can enter the second end 3b of the in-vehicle heat exchanger through the first connecting pipe R, and then enter the first end 51a of the external heat exchange pipe section together with the refrigerant after heat exchange with the tank 2, and is evaporated and absorbs heat in the external heat exchanger 6, thereby transferring heat from the external environment to the passenger compartment and the battery, and then the refrigerant after heat exchange with the external environment can enter the second end 52b of the return pipe section through the second end 51b of the external heat exchange pipe section, and then enter the inlet of the compressor 1 through the return pipe section 52, and circulates repeatedly.

[0051] In the cooling mode, the other end of the second connecting pipe T is communicated with the second end 52b of the return pipe section, so that the high-temperature and high-pressure gas generated by the compressor 1 can enter the first end 51a of the external heat exchange pipe section, and is condensed and releases heat in the external heat exchanger 6, and then enters the second end 3b of the in-vehicle heat exchanger through the second end 51b of the external heat exchange pipe section, and then part of the refrigerant can enter the battery heat exchanger Q through the first connecting pipe R when the refrigerant after heat exchange with the external environment evaporates and absorbs heat in the battery heat exchanger Q, thereby cooling the refrigerant in the circulating loop O, and then the battery, and then the refrigerant after heat exchange with the circulating loop O can enter the second end 52b of the return pipe section through the second connecting pipe T, and then flow back to the inlet of the compressor 1 together with the refrigerant after heat exchange with the tank 2, and circulates repeatedly.

[0052] In an embodiment, referring to Figures 1 to 4 , the second connecting pipe T includes a second main pipe section T1, a second secondary pipe section T2, and a second sub-pipe section T3, and the thermal management system 100 includes a third one-way valve G, one end of the second main pipe section T1 is communicated with the battery heat exchanger Q, the other end of the second main pipe section T1 is communicated with one end of the second secondary pipe section T2 and one end of the second sub-pipe section T3, the other end of the second secondary pipe section T2 is communicated with the first end 3a of the in-vehicle heat exchanger, the other end of the second sub-pipe section T3 is communicated with the second end 52b of the return pipe section, and the third one-way valve G is arranged in the second sub-pipe section T3, and the outlet of the third one-way valve G is communicated with the second end 52b of the return pipe section.

[0053] In this way, in the heating mode, part of the high-temperature and high-pressure gas generated by the compressor 1 can enter the battery heat exchanger Q through the second main pipe section T1 from the second secondary pipe section T2 when entering the in-vehicle heat exchanger 3 from the first end 3a of the in-vehicle heat exchanger 3, and is condensed and releases heat in the battery heat exchanger Q.

[0054] In the refrigeration mode, the refrigerant enters the second end 3b of the vehicle interior heat exchanger through the second end 51b of the external heat exchange pipe section, and part of the refrigerant can enter the battery heat exchanger Q through the first connecting pipe R, evaporate and absorb heat in the battery heat exchanger Q, and after heat exchange, enter the second end 52b of the return pipe section through the second sub-pipe section T3 from the first main pipe section T1, and finally flow back to the inlet of the compressor 1 for compression, and the cycle is repeated.

[0055] In an embodiment, referring to Figures 1 to 4 , the thermal management system 100 further comprises a second electronic expansion valve N, and the second electronic expansion valve N is arranged in the first connecting pipe R.

[0056] Here, by arranging the second electronic expansion valve N in the first connecting pipe R, the flow of the refrigerant in the first connecting pipe R can be automatically adjusted according to changes in external temperature and pressure, with high accuracy, high heat exchange efficiency, and good energy saving effect.

[0057] For example, in an embodiment, referring to Figures 1 to 4 , the thermal management system 100 comprises a fourth electromagnetic valve D, which can be arranged in the return pipe section 52 between the third refrigeration pipe section 57 and the second sub-pipe section T3 to adjust the flow of the refrigerant in the third heating pipe section 58 and the second sub-pipe section T3.

[0058] For example, in an embodiment, referring to Figures 1 to 4 , the thermal management system 100 comprises an electronic water pump 7, which can be arranged in the circulation loop O to drive the refrigerant in the circulation loop O to flow, thereby improving the uniformity of heating.

[0059] In an embodiment, referring to Figures 1 to 4 , the thermal management system 100 comprises a heating pipe 8, a heating water pump 9, a heating core 10, a heater 11, and a water-water heat exchanger 12, the heating core 10 is arranged in the box 2, the water-water heat exchanger 12 is arranged in parallel with the battery heat exchanger Q on the circulation loop O, the opposite ends of the heating pipe 8 are connected with the water-water heat exchanger 12, and the heating water pump 9, the heating core 10, and the heater 11 are arranged on the heating pipe 8.

[0060] For example, the thermal management system 100 comprises a communication loop 13, and the water-water heat exchanger 12 is arranged in parallel with the circulation loop O through the communication loop 13. The heater 11 can be a high-pressure water heating heater 11. The water-water heat exchanger 12 refers to heat exchange between the refrigerant of the circulation loop O and the refrigerant of the heat exchange loop 5. The heating water pump 9, the heating core 10, and the heater 11 can be arranged in series on the heating pipe 8.

[0061] Here, when the outside environment temperature is too low, such as below-10℃, the refrigerant cannot absorb heat from the outside environment, at this time, the refrigerant in the heating pipeline 8 can be driven to flow to the heater 11 for heating by heating the water pump 9, the heated refrigerant can flow through the heater core 10 to heat the air flow of the box body 2, then the air flow can be driven into the passenger compartment by the fan 4 to realize heating of the passenger compartment, and then the heat-exchanged refrigerant can flow out of the heater core 10 and flow to the water-water heat exchanger 12 to transfer heat to the refrigerant in the circulation loop O through the water-water heat exchanger 12 to heat the refrigerant in the circulation loop O, thereby heating the battery. In this way, on the one hand, by providing the heating pipeline 8 and the like, effective heating of the battery and the passenger compartment in a low-temperature environment can be realized; on the other hand, in the dehumidification mode, the air flow heated by the heater core 10 can be driven by the fan 4 to supplement the heat absorbed by the vehicle interior heat exchanger 3 from the passenger compartment, so that the temperature of the passenger compartment is substantially unchanged, reducing the situation that the temperature of the passenger compartment is too low, and the user experience is good; on the other hand, the external heat exchanger 6 and the vehicle interior heat exchanger 3 can work together to heat together, so that the heating efficiency can be improved.

[0062] For example, in an embodiment, referring to Figures 1 to 4 Figures 1 to 4 Figures 1 to 4 The heat management system 100 includes a second three-way valve 14, which is connected to two nodes of the circulation loop O and the loop 13.

[0063] In another aspect, the application provides a vehicle including the heat management system 100 of any one of the above embodiments.

[0064] For example, the vehicle can be a range-extended vehicle, a pure electric vehicle, and a hybrid vehicle.

[0065] The vehicle provided by the application has the advantages of the heat management system 100 described above, so that the energy consumption of the vehicle can be reduced, and the vehicle has good cruising ability and quietness.

[0066] The above description is only a preferred embodiment of the application, and is not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the application are included in the protection scope of the application.

Claims

1. A thermal management system, characterized by, The heat management system comprises a compressor, a box, an in-vehicle heat exchanger, a fan, a heat exchange circuit and an external heat exchanger, the in-vehicle heat exchanger and the fan are arranged in the box, the in-vehicle heat exchanger, the external heat exchanger and the compressor are arranged in the heat exchange circuit, the heat exchange circuit is provided with refrigerant, the external heat exchanger is used for heat exchange with the external environment, the refrigerant is configured to be able to condense and release heat in the in-vehicle heat exchanger and evaporate and absorb heat, and the fan is used to drive the airflow in the box into the passenger cabin.

2. The thermal management system of claim 1, wherein, The heat exchange circuit comprises an external heat exchange pipe section and a return pipe section, the external heat exchanger is arranged in the external heat exchange pipe section, a first end of the return pipe section is communicated with an inlet of the compressor, an outlet of the compressor is selectively communicated with a first end of the external heat exchange pipe section or a first end of the in-vehicle heat exchanger, a second end of the external heat exchange pipe section is selectively communicated with a second end of the in-vehicle heat exchanger or a second end of the return pipe section, the second end of the in-vehicle heat exchanger is communicated with the first end of the external heat exchange pipe section, and the first end of the in-vehicle heat exchanger is selectively connected to the second end of the return pipe section.

3. The thermal management system of claim 2, wherein, The heat exchange circuit comprises a first refrigeration pipe section, a first heating pipe section, a second refrigeration pipe section, a second heating pipe section, a third refrigeration pipe section and a third heating pipe section, one end of the first refrigeration pipe section and the first heating pipe section is communicated with the outlet of the compressor, the other end of the first refrigeration pipe section is communicated with the first end of the external heat exchange pipe section, the other end of the first heating pipe section is communicated with the first end of the in-vehicle heat exchanger, the second end of the external heat exchange pipe section is communicated with the second end of the in-vehicle heat exchanger through the second refrigeration pipe section and communicated with the second end of the return pipe section through the third heating pipe section, the first end of the in-vehicle heat exchanger is communicated with the second end of the return pipe section through the third refrigeration pipe section, and the two ends of the second heating pipe section are respectively communicated with the second end of the in-vehicle heat exchanger and the first end of the external heat exchange pipe section. The heat management system comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, the first electromagnetic valve is arranged in the first refrigeration pipe section, the second electromagnetic valve is arranged in the first heating pipe section, and the third electromagnetic valve is arranged in the third heating pipe section.

4. The thermal management system of claim 3, wherein, The heat management system comprises a first check valve and a second check valve, the first check valve is arranged in the second refrigeration pipe section, the outlet of the first check valve is communicated with the second end of the in-vehicle heat exchanger, the second check valve is arranged in the third refrigeration pipe section, and the outlet of the second check valve is communicated with the second end of the return pipe section.

5. The thermal management system of claim 2, wherein, The heat management system comprises a gas-liquid separator, and the gas-liquid separator is arranged in the return pipe section.

6. The thermal management system of claim 2, wherein, The heat management system comprises an electric regulating valve and a first electronic expansion valve, the electric regulating valve is arranged at the first end of the external heat exchange pipe section, and the first electronic expansion valve is arranged at the second end of the in-vehicle heat exchanger.

7. The thermal management system of claim 2, wherein, The heat management system comprises a circulation loop, a battery pack, a battery heat exchanger, a first connecting pipe and a second connecting pipe, the battery pack and the battery heat exchanger are arranged on the circulation loop, opposite ends of the first connecting pipe are communicated with the battery heat exchanger and a second end of the in-vehicle heat exchanger respectively, one end of the second connecting pipe is communicated with the battery heat exchanger, the other end of the second connecting pipe is communicated with a first end of the in-vehicle heat exchanger, and the second end of the second connecting pipe is connected to the second end of the return pipe section in an openable and closable manner.

8. The thermal management system of claim 7, wherein, The second connecting pipe comprises a second main pipe section, a second secondary pipe section and a second sub-pipe section, the heat management system comprises a third one-way valve, one end of the second main pipe section is communicated with the battery heat exchanger, the other end of the second main pipe section is communicated with one end of the second secondary pipe section and one end of the second sub-pipe section, the other end of the second secondary pipe section is communicated with the first end of the in-vehicle heat exchanger, the other end of the second sub-pipe section is communicated with the second end of the return pipe section, the third one-way valve is arranged in the second sub-pipe section, and an outlet of the third one-way valve is communicated with the second end of the return pipe section.

9. The thermal management system of claim 7, wherein, The heat management system comprises a heating pipeline, a heating water pump, a heating core, a heater and a water-water heat exchanger, the heating core is arranged in the box, the water-water heat exchanger is arranged in parallel with the battery heat exchanger on the circulation loop, opposite ends of the heating pipeline are connected with the water-water heat exchanger, and the heating water pump, the heating core and the heater are arranged on the heating pipeline.

10. The thermal management system of claim 7, wherein, The heat management system further comprises a second electronic expansion valve, and the second electronic expansion valve is arranged in the first connecting pipe.

11. A vehicle characterized by comprising: The heat management system comprises the heat management system according to any one of claims 1 to 10. The heat management system comprises the heat management system according to any one of claims 1 to 10.

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