Thermal management system and vehicle

Abstract

The invention relates to a heat management system which comprises a warm air water way and a bypass branch, and the warm air water way is provided with a warm air water pump and a water condenser connected with the warm air water pump; the bypass branch is provided with a compressor and a first electronic expansion valve, an exhaust port of the compressor is connected with a first inlet of the water condenser through a pipeline, a first outlet of the water condenser is connected with the first electronic expansion valve through a pipeline, the bypass branch is further provided with a gas-liquid separator, and the first electronic expansion valve is connected to an air suction port of the compressor through the gas-liquid separator. The bypass branch is arranged at the output end of the compressor, the bypass branch is provided with the water condenser, hot and cold media output by the compressor are cooled through the water condenser and then output, the situation that heat dissipation of the bypass branch is large in the stable stage due to the fact that the exhaust temperature of the compressor in the starting stage is too high is avoided, and the output energy efficiency ratio of the compressor is increased; the technical problems that in the prior art, the exhaust temperature in the starting stage of a compressor triangular circulation air conditioning system is high, and the actual energy efficiency is low are solved.

Description

Technical Field

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

[0002] With the development of electric vehicles, the requirements for the refrigeration and heating functions of electric vehicles themselves are getting higher and higher. In addition to meeting the heating and refrigeration requirements of the passenger compartment and the powertrain, the thermal management system of electric vehicles also needs to meet the refrigeration and heating functions of the battery pack.

[0003] In related technologies, in order to improve the heating function at extremely low temperatures, most vehicles use PTC heating. However, the cost of PTC is relatively high, and the exhaust temperature of the compressor triangular cycle air conditioning system is relatively high during the startup stage, and the actual energy efficiency ratio is relatively low.

[0004] Therefore, it is necessary to design a new thermal management system to overcome the above problems. Summary of the Invention

[0005] The present application provides a thermal management system and a vehicle, which can solve the technical problems that the exhaust temperature of the compressor triangular cycle air conditioning system is relatively high during the startup stage and the actual energy efficiency ratio is relatively low in related technologies.

[0006] In a first aspect, an embodiment of the present application provides a thermal management system, which includes: a warm water circuit and a bypass branch. The warm water circuit is provided with a warm water pump and a water condenser connected to the warm water pump; the bypass branch is provided with a compressor and a first electronic expansion valve. The exhaust port of the compressor is connected to the first inlet of the water condenser through a pipeline, the first outlet of the water condenser is connected to the first electronic expansion valve through a pipeline, and the bypass branch is further provided with a gas-liquid separator. The first electronic expansion valve is connected to the suction port of the compressor through the gas-liquid separator.

[0007] In combination with the first aspect, in an implementation manner, the bypass branch includes a first bypass branch, which sequentially passes through the exhaust port of the compressor, the water condenser, the first electronic expansion valve and the gas-liquid separator and returns to the suction port of the compressor. A first electromagnetic cut-off valve is further provided on the first bypass branch, and the first outlet of the water condenser is connected to the first electronic expansion valve through a pipeline and the first electromagnetic cut-off valve.

[0008] In combination with the first aspect, in an implementation manner, the bypass branch further includes a second bypass branch, which sequentially passes through the exhaust port of the compressor, the first electronic expansion valve and the gas-liquid separator and returns to the suction port of the compressor. A second electromagnetic cut-off valve is further provided on the second bypass branch, and the exhaust port of the compressor is connected to the first electronic expansion valve through a pipeline and the second electromagnetic cut-off valve.

[0009] In combination with the first aspect, in one embodiment, the thermal management system further includes: a battery cooler branch, the battery cooler branch is provided with a second electronic expansion valve and a battery cooler, a first outlet of the water condenser is connected to the second electronic expansion valve and a first inlet of the battery cooler through a pipeline, the battery cooler branch is further provided with a third electromagnetic cut-off valve, and the first outlet of the water condenser is connected to the second electronic expansion valve through the third electromagnetic cut-off valve.

[0010] In combination with the first aspect, in one embodiment, the thermal management system further includes: an evaporator branch, the evaporator branch is provided with a third electronic expansion valve and an evaporator, a first outlet of the water condenser is connected to the third electronic expansion valve and an inlet of the evaporator through a pipeline, the evaporator branch is further provided with a fourth electromagnetic cut-off valve, and an outlet of the evaporator is connected to an inlet of the gas-liquid separator through the fourth electromagnetic cut-off valve.

[0011] In combination with the first aspect, in one embodiment, the thermal management system further includes: an external heat exchanger branch, the external heat exchanger branch is provided with a fourth electronic expansion valve and an external heat exchanger, a first outlet of the water condenser is connected to the fourth electronic expansion valve and an inlet of the external heat exchanger through a pipeline, the external heat exchanger branch is further provided with a fifth electromagnetic cut-off valve, and an outlet of the external heat exchanger is connected to an inlet of the gas-liquid separator through the fifth electromagnetic cut-off valve.

[0012] In combination with the first aspect, in one embodiment, the thermal management system further includes a battery water circuit, the battery water circuit is provided with a battery water pump and a water-water heat exchanger connected to the battery water pump, the warm water circuit is further provided with a heater core, an outlet of the warm water pump is connected to a second inlet of the water condenser through a pipeline, a second outlet of the water condenser is connected to an inlet of the heater core through a pipeline, an outlet of the heater core is connected to a first inlet of the water-water heat exchanger through a first pipeline, a first outlet of the water-water heat exchanger is connected to an inlet of the warm water pump through a second pipeline, the second pipeline is provided with a warm water circuit three-way valve, and the warm water circuit three-way valve connects the inlet of the warm water pump and the first outlet of the water-water heat exchanger.

[0013] In combination with the first aspect, in one embodiment, the thermal management system further includes a battery cooler; the outlet of the battery water pump is connected to the second inlet of the water-water heat exchanger through a pipeline, the second outlet of the water-water heat exchanger is connected to the second inlet of the battery cooler through a third pipeline, the second outlet of the battery cooler is connected to the inlet of the battery water pump through a pipeline, and a battery water three-way valve is provided on the third pipeline, and the battery water three-way valve connects the second outlet of the water-water heat exchanger and the inlet of the battery water pump.

[0014] In combination with the first aspect, in one embodiment, an air-conditioning box blower is provided on one side of the heater core.

[0015] In a second aspect, an embodiment of the present application provides a vehicle, which includes the above-mentioned thermal management system.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present application include:

[0017] By providing a bypass branch at the output end of the compressor, and a water condenser is provided in the bypass branch, so that the hot refrigerant output by the compressor is cooled by the water condenser and then output, avoiding the compressor exhaust temperature protection caused by too high exhaust temperature during the startup stage of the compressor and then frequent start and stop, resulting in large heat dissipation in the bypass branch during the stable stage, improving the energy efficiency ratio of the compressor output during the stable heat release stage, and solving the technical problems of too high exhaust temperature during the startup stage of the compressor triangular cycle air-conditioning system and relatively low actual energy efficiency ratio in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of a thermal management system provided by an embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of a battery cooler branch provided by an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of an evaporator branch provided by an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of an external heat exchanger branch provided by an embodiment of the present application.

[0023] In the figure: 1, heater water pump; 2, water condenser; 3, compressor; 4, first electronic expansion valve; 5, gas-liquid separator; 6, first electromagnetic cut-off valve; 7, second electromagnetic cut-off valve; 8, second electronic expansion valve; 9, battery cooler; 10, third electromagnetic cut-off valve; 11, third electronic expansion valve; 12, evaporator; 13, fourth electromagnetic cut-off valve; 14, fourth electronic expansion valve; 15, external heat exchanger; 16, fifth electromagnetic cut-off valve; 17, heater core; 18, water-water heat exchanger; 19, heater water circuit three-way valve; 20, battery water circuit pump; 21, battery water circuit three-way valve; 22, air-conditioning box blower; 23, condenser fan; 24, sixth electromagnetic cut-off valve; 25, battery. Detailed implementation manners

[0024] To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0025] The embodiments of this application provide a thermal management system and a vehicle, which can solve the technical problem of relatively low actual heat exchange energy efficiency of the compressor triangular cycle air-conditioning system.

[0026] See Figure 1 As shown, the embodiments of this application provide a thermal management system, which includes: a heater water circuit and a bypass branch. The heater water circuit is provided with a heater water pump 1 and a water condenser 2 connected to the heater water pump 1; the bypass branch is provided with a compressor 3 and a first electronic expansion valve 4. The exhaust port of the compressor 3 is connected to the first inlet of the water condenser 2 through a pipeline, the first outlet of the water condenser 2 is connected to the first electronic expansion valve 4 through a pipeline, and the bypass branch is further provided with a gas-liquid separator 5. The first electronic expansion valve 4 is connected to the suction port of the compressor 3 through the gas-liquid separator 5.

[0027] In this embodiment, the water condenser 2 is connected to the compressor 3. At the same time, the water condenser 2 is connected to the heater water pump 1, so that the water condenser 2 is communicated with the bypass branch and the heater water circuit. The first electronic expansion valve 4 is connected between the first outlet of the water condenser 2 and the suction port of the compressor 3. The first electronic expansion valve 4 adjusts the opening degree of the bypass branch. The bypass branch is provided with the water condenser 2, so that the hot refrigerant output by the compressor 3 is cooled by the water condenser 2 and then output, avoiding the exhaust temperature of the compressor 3 being too high during the startup stage, which may cause compressor exhaust temperature protection and then frequent start and stop, resulting in large heat dissipation of the bypass branch during the stable stage, and improving the energy efficiency ratio of the compressor 3 output during the stable heat release stage.

[0028] In this embodiment, the bypass branch is provided at the output end of the compressor 3, and the water condenser 2 is provided in the bypass branch, so that the hot refrigerant output by the compressor 3 is cooled by the water condenser 2 and then output, avoiding the exhaust temperature of the compressor 3 being too high during the startup stage, which may cause compressor exhaust temperature protection and then frequent start and stop, resulting in large heat dissipation of the bypass branch during the stable stage, and improving the energy efficiency ratio of the compressor 3 output during the stable heat release stage, solving the technical problems of relatively high exhaust temperature of the compressor in the startup stage of the compressor triangular cycle air conditioning system and relatively low actual energy efficiency ratio in the related art.

[0029] Further, referring to Figure 1 As shown, in some embodiments, the bypass branch includes a first bypass branch. The first bypass branch sequentially passes through the exhaust port of the compressor 3, the water condenser 2, the first electronic expansion valve 4 and the gas-liquid separator 5 and returns to the suction port of the compressor 3. A first electromagnetic cut-off valve 6 is further provided on the first bypass branch. The first outlet of the water condenser 2 is connected to the first electronic expansion valve 4 through a pipeline and the first electromagnetic cut-off valve 6.

[0030] In this embodiment, the exhaust port of the compressor 3 is connected to the first inlet of the water condenser 2. The first outlet of the water condenser 2 is sequentially connected to the first electromagnetic cut-off valve 6 and the first electronic expansion valve 4. The first electronic expansion valve 4 is connected to the inlet of the gas-liquid separator 5. The outlet of the gas-liquid separator 5 is connected to the suction port of the compressor 3. The first electromagnetic cut-off valve 6 controls the on-off of the first bypass branch. The condenser is provided in the first bypass branch, and the condenser can effectively avoid the exhaust temperature of the compressor 3 from being too high, and at the same time improve the energy efficiency ratio of the compressor 3 output.

[0031] Further, referring to Figure 1As shown, in some embodiments, the bypass branch further includes a second bypass branch. The second bypass branch sequentially returns to the suction port of the compressor 3 through the exhaust port of the compressor 3, the first electronic expansion valve 4, and the gas-liquid separator 5. A second electromagnetic cut-off valve 7 is further provided on the second bypass branch. The exhaust port of the compressor 3 is connected to the first electronic expansion valve 4 through a pipeline and the second electromagnetic cut-off valve 7.

[0032] In this embodiment, the exhaust port of the compressor 3 is sequentially connected to the second electromagnetic cut-off valve 7 and the first electronic expansion valve 4. The first electronic expansion valve 4 is connected to the inlet of the gas-liquid separator 5. The outlet of the gas-liquid separator 5 is connected to the suction port of the compressor 3. The second electromagnetic cut-off valve 7 controls the on-off of the second bypass branch. During the startup phase, the refrigerant output by the compressor 3 is heated through the second bypass branch to avoid liquid slugging of the compressor 3. When the exhaust temperature of the compressor 3 reaches the set value, the bypass branch switches to the first bypass branch.

[0033] Further, referring to Figure 2 As shown, in some embodiments, the thermal management system further includes: a battery cooler branch. The battery cooler branch is provided with a second electronic expansion valve 8 and a battery cooler 9. The first outlet of the water condenser 2 is connected to the first inlet of the second electronic expansion valve 8 and the battery cooler 9 through a pipeline. A third electromagnetic cut-off valve 10 is further provided on the battery cooler branch. The first outlet of the water condenser 2 is connected to the second electronic expansion valve 8 through the third electromagnetic cut-off valve 10.

[0034] In this embodiment, when the thermal management system generates heat by itself through the battery cooler branch, the exhaust port of the compressor 3 is connected to the first inlet of the water condenser 2. The first outlet of the water condenser 2 is sequentially connected to the third electromagnetic cut-off valve 10 and the second electronic expansion valve 8. The second electronic expansion valve 8 is connected to the first inlet of the battery cooler 9. The first outlet of the battery cooler 9 is connected to the inlet of the gas-liquid separator 5. The outlet of the gas-liquid separator 5 is connected to the suction port of the compressor 3. The second electronic expansion valve 8 adjusts the opening degree of the battery cooler 9.

[0035] Further, referring to Figure 3 As shown, in some embodiments, the thermal management system further includes: an evaporator branch. The evaporator branch is provided with a third electronic expansion valve 11 and an evaporator 12. The first outlet of the water condenser 2 is connected to the third electronic expansion valve 11 and the inlet of the evaporator 12 through a pipeline. A fourth electromagnetic cut-off valve 13 is further provided on the evaporator branch. The outlet of the evaporator 12 is connected to the inlet of the gas-liquid separator 5 through the fourth electromagnetic cut-off valve 13.

[0036] In this embodiment, when the heat management system generates heat by itself through the evaporator branch, the second electronic expansion valve 8 is in the closed state. The exhaust port of the compressor 3 is connected to the first inlet of the water condenser 2. The first outlet of the water condenser 2 is sequentially connected to the third electromagnetic cut-off valve 10 and the third electronic expansion valve 11. The third electronic expansion valve 11 is connected to the inlet of the evaporator 12. The outlet of the evaporator 12 is connected to the fourth electromagnetic cut-off valve 13. The fourth electromagnetic cut-off valve 13 is connected to the inlet of the gas-liquid separator 5. The outlet of the gas-liquid separator 5 is connected to the suction port of the compressor 3. The third electronic expansion valve 11 adjusts the opening degree of the evaporator 12.

[0037] Further, referring to Figure 4 As shown, in some embodiments, the heat management system further includes: an external heat exchanger branch, which is provided with a fourth electronic expansion valve 14 and an external heat exchanger 15. The first outlet of the water condenser 2 is connected to the fourth electronic expansion valve 14 and the inlet of the external heat exchanger 15 through a pipeline. The external heat exchanger branch is further provided with a fifth electromagnetic cut-off valve 16. The outlet of the external heat exchanger 15 is connected to the inlet of the gas-liquid separator 5 through the fifth electromagnetic cut-off valve 16.

[0038] In this embodiment, a condensation fan 23 is provided on one side of the external heat exchanger 15. In the case of ultra-low temperature, the condensation fan 23 is in a closed state. When the heat management system self-heats through the external heat exchanger branch, the third electromagnetic cut-off valve 10, the fourth electromagnetic cut-off valve 13, the second electronic expansion valve 8, and the third electronic expansion valve 11 are in a closed state. The exhaust port of the compressor 3 is connected to the first inlet of the water condenser 2. The first outlet of the water condenser 2 is connected to the fourth electronic expansion valve 14. The fourth electronic expansion valve 14 is connected to the inlet of the external heat exchanger 15. The outlet of the external heat exchanger 15 is connected to the fifth electromagnetic cut-off valve 16. The fifth electromagnetic cut-off valve 16 is connected to the inlet of the gas-liquid separator 5. The outlet of the gas-liquid separator 5 is connected to the suction port of the compressor 3. The fourth electronic expansion valve 14 adjusts the opening degree of the external heat exchanger 15. The outlet of the external heat exchanger 15 is also connected to a sixth electromagnetic cut-off valve 24. The sixth electromagnetic cut-off valve 24 is connected to the third electronic expansion valve 11. When the battery cooler 9, the evaporator 12, or the external heat exchanger 15 is in a working state, the sixth electromagnetic cut-off valve 24 is in a closed state. The heat management system forms a compressor triangular circulation system through the battery cooler branch, the evaporator branch, and the external heat exchanger branch. When the heat management system is in a driving state during the startup stage of the compressor 3, the heat management system self-heats through the battery cooler branch or the evaporator branch. When the heat management system is in a parking state during the startup stage of the compressor 3, the heat management system self-heats through the battery cooler branch, the evaporator branch, or the external heat exchanger branch, where the heat loss of the external heat exchanger branch is relatively large.

[0039] Further, as shown in Figure 1 In some embodiments, the heat management system further includes a battery water circuit. The battery water circuit is provided with a battery water pump 20 and a water-water heat exchanger 18 connected to the battery water pump 20. The warm water circuit is also provided with a warm air core 17. The outlet of the warm water pump 1 is connected to the second inlet of the water condenser 2 through a pipeline. The second outlet of the water condenser 2 is connected to the inlet of the warm air core 17 through a pipeline. The outlet of the warm air core 17 is connected to the first inlet of the water-water heat exchanger 18 through a first pipeline. The first outlet of the water-water heat exchanger 18 is connected to the inlet of the warm water pump 1 through a second pipeline. The second pipeline is provided with a warm water circuit three-way valve 19. The warm water circuit three-way valve 19 is connected to the inlet of the warm water pump 1 and the first outlet of the water-water heat exchanger 18.

[0040] In this embodiment, the outlet of the heater water pump 1 is connected to the inlet of the water condenser 2, the second outlet of the water condenser 2 is connected to the inlet of the heater core 17, the outlet of the heater core 17 is connected to the inlet of the heater water pump 1 through the heater water path three-way valve 19, the outlet of the heater core 17 is also connected to the first inlet of the water-water heat exchanger 18 through the first pipeline and is connected to the inlet of the heater water pump 1 through the heater water path three-way valve 19. The heater water path three-way valve 19 can adjust the hot water ratio of the water-water heat exchanger 18, adjust the hot water distribution between the heater water path and the battery water path, and realize the heat distribution between the passenger compartment and the battery 25. During the startup stage of the compressor 3, the bypass branch can quickly increase the temperature rising speed of the heater water path and improve the comfort of the passenger compartment.

[0041] Further, referring to Figure 1 As shown, in some embodiments, the thermal management system further includes a battery cooler 9; the outlet of the battery water path pump 20 is connected to the second inlet of the water-water heat exchanger 18 through a pipeline, the second outlet of the water-water heat exchanger 18 is connected to the second inlet of the battery cooler 9 through a third pipeline, the second outlet of the battery cooler 9 is connected to the inlet of the battery water path pump 20 through a pipeline, a battery water path three-way valve 21 is provided on the third pipeline, and the battery water path three-way valve 21 is connected to the second outlet of the water-water heat exchanger 18 and the inlet of the battery water path pump 20.

[0042] In this embodiment, the battery 25 is provided in the battery water path, the second outlet of the battery cooler 9 is connected to the inlet of the battery 25, the outlet of the battery 25 is connected to the inlet of the battery water path pump 20, the water-water heat exchanger 18 is communicated with the heater water path through the first pipeline, the water-water heat exchanger 18 is communicated with the battery water path through the third pipeline, the water-water heat exchanger 18 is used to heat the battery water path, and adjusting the battery water path three-way valve 21 can make the battery water path not pass through the battery cooler 9, avoid heat exchange between the battery water path and the battery cooler 9, and avoid the battery water path affecting the temperature rise of the thermal management system during the startup stage of the compressor 3.

[0043] Further, referring to Figure 1 As shown, in some embodiments, an air-conditioning box blower 22 is provided on one side of the heater core 17.

[0044] In this embodiment, the heater core 17 heats the passenger compartment through the air-conditioning box blower 22 to improve the comfort of the passenger compartment.

[0045] An embodiment of the present application provides a vehicle, which includes the above thermal management system.

[0046] In this embodiment, the vehicle is equipped with the thermal management system. The water condenser 2 is connected to the compressor 3, and at the same time, the water condenser 2 is connected to the heater water pump 1, so that the water condenser 2 is communicated with the bypass branch and the heater water circuit. The first electronic expansion valve 4 is connected between the first outlet of the water condenser 2 and the suction port of the compressor 3. The first electronic expansion valve 4 adjusts the opening degree of the bypass branch. The bypass branch is provided with the water condenser 2, so that the hot refrigerant output by the compressor 3 is cooled by the water condenser 2 and then output, avoiding excessive exhaust temperature of the compressor 3 during the start-up stage, resulting in large heat loss of the output heat, and improving the energy efficiency ratio of the output of the compressor 3.

[0047] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0048] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0049] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A thermal management system, characterized in that, It includes: A heater water circuit, which is provided with a heater water pump (1) and a water condenser (2) connected to the heater water pump (1); A bypass branch, which is provided with a compressor (3) and a first electronic expansion valve (4). The exhaust port of the compressor (3) is connected to the first inlet of the water condenser (2) through a pipeline, and the first outlet of the water condenser (2) is connected to the first electronic expansion valve (4) through a pipeline. The bypass branch is further provided with a gas-liquid separator (5), and the first electronic expansion valve (4) is connected to the suction port of the compressor (3) through the gas-liquid separator (5).

2. The thermal management system according to claim 1, characterized in that, The bypass branch includes a first bypass branch, which sequentially returns to the suction port of the compressor (3) through the exhaust port of the compressor (3), the water condenser (2), the first electronic expansion valve (4) and the gas-liquid separator (5). A first electromagnetic cut-off valve (6) is further provided on the first bypass branch, and the first outlet of the water condenser (2) is connected to the first electronic expansion valve (4) through a pipeline and the first electromagnetic cut-off valve (6).

3. The thermal management system according to claim 1, characterized in that, The bypass branch further includes a second bypass branch, which sequentially returns to the suction port of the compressor (3) through the exhaust port of the compressor (3), the first electronic expansion valve (4) and the gas-liquid separator (5). A second electromagnetic cut-off valve (7) is further provided on the second bypass branch, and the exhaust port of the compressor (3) is connected to the first electronic expansion valve (4) through a pipeline and the second electromagnetic cut-off valve (7).

4. The thermal management system according to claim 1, characterized in that, The thermal management system further includes: A battery cooler branch, which is provided with a second electronic expansion valve (8) and a battery cooler (9). The first outlet of the water condenser (2) is connected to the second electronic expansion valve (8) and the first inlet of the battery cooler (9) through a pipeline. The battery cooler branch is further provided with a third electromagnetic cut-off valve (10), and the first outlet of the water condenser (2) is connected to the second electronic expansion valve (8) through the third electromagnetic cut-off valve (10).

5. The thermal management system according to claim 1, wherein, The thermal management system further includes: An evaporator branch, which is provided with a third electronic expansion valve (11) and an evaporator (12). The first outlet of the water condenser (2) is connected to the third electronic expansion valve (11) and the inlet of the evaporator (12) through a pipeline. The evaporator branch is further provided with a fourth electromagnetic cut-off valve (13), and the outlet of the evaporator (12) is connected to the inlet of the gas-liquid separator (5) through the fourth electromagnetic cut-off valve (13).

6. The thermal management system according to claim 1, wherein The thermal management system further includes: An external heat exchanger branch, which is provided with a fourth electronic expansion valve (14) and an external heat exchanger (15). The first outlet of the water condenser (2) is connected to the fourth electronic expansion valve (14) and the inlet of the external heat exchanger (15) through a pipeline. The external heat exchanger branch is also provided with a fifth electromagnetic cut-off valve (16), and the outlet of the external heat exchanger (15) is connected to the inlet of the gas-liquid separator (5) through the fifth electromagnetic cut-off valve (16).

7. The thermal management system according to claim 1, wherein the thermal management system further includes a battery water circuit, the battery water circuit is provided with a battery water pump (20) and a water-water heat exchanger (18) connected to the battery water pump (20), the warm air water circuit is further provided with a warm air core body (17), the outlet of the warm air water pump (1) is connected to the second inlet of the water condenser (2) through a pipeline, the second outlet of the water condenser (2) is connected to the inlet of the warm air core body (17) through a pipeline, the outlet of the warm air core body (17) is connected to the first inlet of the water-water heat exchanger (18) through a first pipeline, and the first outlet of the water-water heat exchanger (18) is connected to the inlet of the warm air water pump (1) through a second pipeline, the second pipeline is provided with a warm air water circuit three-way valve (19), and the warm air water circuit three-way valve (19) is connected to the inlet of the warm air water pump (1) and the first outlet of the water-water heat exchanger (18).

8. The thermal management system according to claim 7, wherein, The thermal management system further includes a battery cooler (9); the outlet of the battery water pump (20) is connected to the second inlet of the water-water heat exchanger (18) through a pipeline, the second outlet of the water-water heat exchanger (18) is connected to the second inlet of the battery cooler (9) through a third pipeline, and the second outlet of the battery cooler (9) is connected to the inlet of the battery water pump (20) through a pipeline, the third pipeline is provided with a battery water circuit three-way valve (21), and the battery water circuit three-way valve (21) is connected to the second outlet of the water-water heat exchanger (18) and the inlet of the battery water pump (20).

9. The thermal management system according to claim 7, wherein One side of the warm air core body (17) is provided with an air-conditioning box blower (22).

10. A vehicle, characterized in that, It includes the thermal management system according to any one of claims 1-9.

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