Thermal management system and vehicle

Abstract

The invention provides a thermal management system and a vehicle, and relates to the technical field of vehicles. The heat management system comprises a refrigerating circuit, a first cooling circuit, a second cooling circuit and a reversing assembly, the first cooling circuit is in heat conduction connection with the refrigerating circuit and is configured to absorb heat from the refrigerating circuit, and the second cooling circuit is in heat conduction connection with the refrigerating circuit and is configured to absorb cold from the refrigerating circuit and is configured to change the direction of the refrigerating circuit. The reversing assembly is connected with the first cooling loop and the second cooling loop and is configured to control connection and disconnection of the cooling flow channel of the first cooling loop and the cooling flow channel of the second cooling loop. According to the thermal management system, refrigeration and heating of the vehicle in various environments can be achieved through control of the reversing assembly, the applicability and the integration degree of the system are improved, and the system cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a thermal management system and a vehicle including the thermal management system. Background Art

[0002] The thermal management system can perform thermal management on the vehicle's air conditioning, power battery, electric drive, etc. to meet the vehicle's operating requirements. However, according to relevant technologies, the vehicle's thermal management system cannot operate well in low-temperature environments, thus affecting the vehicle's operation. Summary of the Invention

[0003] In view of the above problems, the present invention provides a thermal management system, which can realize cooling and heating of the thermal management system in various environments through the control of the reversing component, improve the applicability and integration of the system, and reduce the system cost.

[0004] In a first aspect, the present invention provides a thermal management system, which includes a refrigeration circuit, a first cooling circuit, a second cooling circuit and a reversing component. The first cooling circuit is thermally connected to the refrigeration circuit and is configured to absorb heat from the refrigeration circuit. The second cooling circuit is thermally connected to the refrigeration circuit and is configured to absorb cold from the refrigeration circuit. The reversing component is respectively connected to the first cooling circuit and the second cooling circuit, and is configured to control the conduction and isolation of the first cooling circuit and the second cooling circuit.

[0005] In the technical solution of the embodiment of the present invention, cooling and heating of the vehicle can be achieved in various environments through the control of the reversing component, thereby improving the applicability and integration of the system and reducing the system cost.

[0006] In some embodiments, the refrigeration circuit includes a first heat exchanger, a throttling component, a second heat exchanger, and a compressor connected in sequence. The first heat exchanger is thermally connected to the first cooling circuit, and the second heat exchanger is thermally connected to the second cooling circuit. This allows the first cooling circuit to better absorb heat from the refrigeration circuit, and the second cooling circuit to better absorb cold from the refrigeration circuit, thereby improving system performance.

[0007] In some embodiments, the thermal management system further includes a third cooling circuit connected to the reversing assembly, configured to control the conduction and isolation of any two of the first, second, and third cooling circuits. The first cooling circuit includes a heating assembly, and the third cooling circuit includes a battery assembly. This allows the thermal management system to achieve both cooling and heating in various environments, utilizing both heat and cold to raise and lower the temperatures of components within the circuits, meeting the vehicle's operational requirements.

[0008] In some embodiments, the thermal management system further includes a fourth cooling circuit connected to the reversing assembly, configured to control the conduction and isolation of any two of the first, second, third, and fourth cooling circuits. The fourth cooling circuit includes an electric drive assembly and a radiator, with the electric drive assembly connected to the radiator. This allows the thermal management system to achieve cooling and heating in a variety of environments, utilizing components in the heat and cold circuits to increase and decrease temperatures, meeting the vehicle's operational requirements.

[0009] In some embodiments, the thermal management system further includes a fifth cooling circuit connected to the reversing assembly, the reversing assembly being configured to control the conduction and isolation of any two of the first, second, and fifth cooling circuits; wherein the first cooling circuit includes a heating assembly, and the fifth cooling circuit includes an electric drive assembly and a radiator, the electric drive assembly being connected to the radiator. In this way, the thermal management system can achieve cooling and heating in a variety of environments, utilizing components in the heat and cold circuits to increase and decrease temperatures, thereby meeting the vehicle's operational requirements.

[0010] In some embodiments, the reversing assembly includes a first reversing valve and a second reversing valve. The first reversing valve connects the first cooling circuit, the second cooling circuit, the third cooling circuit, and the fourth cooling circuit, and is used to control the flow and isolation of the first cooling circuit and the second cooling circuit, the first cooling circuit and the fourth cooling circuit, the second cooling circuit and the third cooling circuit, the second cooling circuit and the fourth cooling circuit, and the third cooling circuit and the fourth cooling circuit. The second reversing valve connects the first cooling circuit and the third cooling circuit, and is used to control the flow and isolation of the first cooling circuit and the third cooling circuit. In this way, the first and second reversing valves can more easily achieve flow distribution of the cooling medium and reduce the cost of the thermal management system.

[0011] In some embodiments, the reversing assembly further includes a first reversing valve, a third reversing valve, and a one-way valve. The first reversing valve connects the first, second, third, and fourth cooling circuits and is used to control the conduction and isolation of the first and second cooling circuits, the first and fourth cooling circuits, the second and third cooling circuits, the second and fourth cooling circuits, and the third and fourth cooling circuits. The third reversing valve has a first end, a second end, and a third end. The first and second ends are connected in series to the first cooling circuit, and the second end is connected to the third cooling circuit. The one-way valve connects the first and third cooling circuits. In this way, the flow distribution of the cooling medium can be easily achieved through the first reversing valve, the second reversing valve, and the one-way valve, while reducing the cost of the thermal management system.

[0012] In some embodiments, the first cooling circuit further includes a first drive element, and the refrigeration circuit includes a first heat exchanger. The first drive element, the heating assembly, the first heat exchanger, and the reversing assembly are sequentially connected to form a circuit, with the first heat exchanger used to heat the cooling medium. In this manner, the first cooling circuit can heat the passenger compartment and other vehicle components, meeting user needs.

[0013] In some embodiments, the third cooling circuit further includes a cooling assembly and a second drive member. The second drive member, the cooling assembly, the battery assembly, and the reversing assembly are sequentially connected to form a circuit. In this manner, the third cooling circuit can cool the passenger compartment and other vehicle components, meeting user needs.

[0014] In some embodiments, the reversing assembly includes a fourth reversing valve, which connects the cooling assembly, the battery assembly, and the second cooling circuit. When the second cooling circuit is connected to the third cooling circuit, the fourth reversing valve is configured to selectively control the flow of cooling medium to the cooling assembly and the battery assembly. This can enrich the functionality of the thermal management system and meet user needs.

[0015] In some embodiments, the reversing assembly includes a fifth reversing valve having a fourth end, a fifth end, and a sixth end. The fourth end is connected to the cooling assembly, the fifth end is connected to the inlet of the battery assembly, and the sixth end is connected to the outlet of the battery assembly. The fifth reversing valve is configured to selectively control the fourth end to communicate with the fifth end and the sixth end. This can enrich the functionality of the thermal management system and meet user needs.

[0016] In some embodiments, the fifth cooling circuit further includes a third drive member, and the radiator, the third drive member, the electric drive assembly, and the reversing assembly are connected to form a circuit. In this way, heat dissipation of the electric drive assembly can be achieved through the fourth cooling circuit.

[0017] In some embodiments, the fifth cooling circuit further includes a first branch, one end of which is connected to the inlet of the radiator, and the other end of which is connected to the outlet of the radiator. This reduces fluid resistance and improves the stability of the thermal management system while achieving both heating and cooling of the battery assembly.

[0018] In some embodiments, the refrigeration circuit further includes a bypass valve having an inlet and an outlet, wherein the inlet is connected to the inlet of the compressor and the outlet is connected to the outlet of the compressor. This arrangement can ensure the normal operation of the thermal management system in a low-temperature environment.

[0019] In a second aspect, the present invention provides a vehicle, comprising the thermal management system described above.

[0020] In the technical solution of the embodiment of the present invention, by applying the aforementioned thermal management system, the vehicle integration level can be improved and the vehicle cost can be reduced.

[0021] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.

[0022] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0024] Figure 1 is a schematic diagram of a thermal management system in some embodiments of the present invention (refrigeration circuit, first cooling circuit, second cooling circuit and reversing assembly).

[0025] Figure 2 1 is a schematic diagram of a thermal management system in some embodiments of the present invention (refrigeration circuit, first cooling circuit, second cooling circuit, third cooling circuit, fourth cooling circuit and reversing assembly).

[0026] Figure 3 is a schematic diagram of a thermal management system in some embodiments of the present invention (third operating mode and fourth operating mode).

[0027] Figure 4 is a schematic diagram of a thermal management system in some embodiments of the present invention (second operating mode and fifth operating mode).

[0028] Figure 5 Schematic diagram of the thermal management system in other embodiments of the present invention (second working mode and fifth working mode).

[0029] Figure 6 is a schematic diagram of a thermal management system in some embodiments of the present invention (fifth operating mode).

[0030] Figure 7 is a schematic diagram of a thermal management system in some other embodiments of the present invention (fifth working mode).

[0031] Figure 8 is a schematic diagram of a thermal management system in some embodiments of the present invention (sixth operating mode).

[0032] Figure 9 is a schematic diagram of a thermal management system in some other embodiments of the present invention (sixth working mode).

[0033] Some of the accompanying drawings in the specific implementation manner are as follows:

[0034] Thermal management system 100, reversing assembly 10, first reversing valve 11, third reversing valve 12, fifth reversing valve 13, one-way valve 14, refrigeration circuit 20, first heat exchanger 21, throttling component 22, second heat exchanger 23, compressor 24, first cooling circuit 30, heating assembly 31, water heater 311, warm air core 312, first drive element 32, second cooling circuit 40, third cooling circuit 50, battery assembly 51, cooling assembly 52, second drive element 53, fourth cooling circuit 60, electric drive assembly 61, radiator 62, third drive element 63, first branch 64, bypass valve 70. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0036] In related technologies, the thermal management system can perform thermal management on the vehicle's air conditioning, power battery, electric drive, etc. to meet the vehicle's working needs. However, when the thermal management system is in a low-temperature environment, the thermal management system cannot absorb heat from the outside, resulting in the thermal management system being unable to maintain stable operation, thereby affecting the normal operation of the vehicle.

[0037] To address the above technical issues, the present invention provides a thermal management system 100. Through control of a reversing assembly 10, the thermal management system 100 can achieve cooling and heating functions in a variety of environments, thereby improving the system's applicability and integration while reducing system costs. Furthermore, a vehicle is provided, comprising the aforementioned thermal management system 100.

[0038] like Figure 1 As shown, according to a thermal management system 100 in an embodiment of the present invention, the thermal management system 100 includes a refrigeration circuit 20, a first cooling circuit 30, a second cooling circuit 40, and a reversing assembly 10. The refrigeration circuit 20 indirectly achieves cooling and heating through the first cooling circuit 30 and the second cooling circuit 40, which can reduce the amount of refrigerant charged, improve the safety of the thermal management system 100, and simplify the refrigerant circuit, facilitating further integration of the refrigerant circuit and reducing system costs.

[0039] Among them, the first cooling circuit 30 is thermally connected to the refrigeration circuit 20 and is configured to absorb heat from the refrigeration circuit 20. The second cooling circuit 40 is thermally connected to the refrigeration circuit 20 and is configured to absorb cold from the refrigeration circuit 20. The reversing component 10 is respectively connected to the first cooling circuit 30 and the second cooling circuit 40, and is configured to control the conduction and isolation of the first cooling circuit 30 and the second cooling circuit 40. In this arrangement, the first cooling circuit 30 and the second cooling circuit 40 are connected through the reversing component 10 to realize the cooling and heating of the vehicle, improve the applicability and integration of the system, and reduce the system cost.

[0040] Specifically, a refrigerant medium flows through the refrigeration circuit 20, and a cooling medium flows through the first cooling circuit 30 and the second cooling circuit 40 respectively; the refrigerant medium undergoes a phase change in the refrigeration circuit 20, and the heat of the refrigerant medium is transferred to the cooling medium of the first cooling circuit 30 through the thermal connection between the first cooling circuit 30 and the refrigeration circuit 20. Similarly, the coldness of the refrigerant medium is transferred to the cooling medium of the second cooling circuit 40 through the thermal connection between the second cooling circuit 40 and the refrigeration circuit 20.

[0041] More specifically, the first cooling circuit 30 and the second cooling circuit 40 are respectively connected to the reversing component 10, which can control the on and off of the first cooling circuit 30 and the second cooling circuit 40; under normal temperature conditions, the reversing component 10 can control the first cooling circuit 30 and the second cooling circuit 40 to be disconnected. At this time, the first cooling circuit 30 can be provided with a heating component 31, etc. to utilize the heat of the cooling medium to achieve operations such as heating the passenger compartment and heating other components of the vehicle. The second cooling circuit 40 can be provided with a cooling component 52, etc. to utilize the heat of the cooling medium to achieve operations such as cooling the passenger compartment and cooling other components of the vehicle.

[0042] In addition, in a low-temperature environment, the refrigeration circuit 20 can transfer heat to the first cooling circuit 30, but cannot absorb heat from the second cooling circuit 40, affecting the normal operation of the refrigeration circuit 20. Based on this, the reversing component 10 can control the conduction of the first cooling circuit 30 and the second cooling circuit 40. At this time, the cooling medium in the first cooling circuit 30 flows to the second cooling circuit 40, and transfers the waste heat to the refrigeration circuit 20 in the second cooling circuit 40 to ensure the normal operation of the refrigeration circuit 20; it should be noted that under this working condition, the second cooling circuit 40 may be provided with a cooling component 52, but it is not in operation, or the cooling component 52 may not be provided to achieve the purpose of waste heat recovery.

[0043] Therefore, according to the thermal management system 100 of the embodiment of the present invention, the thermal management system 100 can realize cooling and heating in various environments through the control of the reversing component 10, thereby improving the applicability and integration of the system and reducing the system cost.

[0044] In addition, there are multiple ways of thermally connecting the first cooling circuit 30 to the refrigeration circuit 20, and there are also multiple ways of thermally connecting the second cooling circuit 40 to the refrigeration circuit 20; in a first example, the first cooling circuit 30 can be thermally connected to the heat release pipe in the refrigeration circuit 20 to absorb heat in the refrigeration circuit 20, and the second cooling circuit 40 can be thermally connected to the heat absorption pipe in the refrigeration circuit 20 to absorb cold in the refrigeration circuit 20; in a second example, the first cooling circuit 30 can be thermally connected to the condenser to absorb heat released by the condenser, and the second cooling circuit 40 can be thermally connected to the evaporator to absorb heat from the evaporator.

[0045] According to the second example above, if Figures 1 to 9 As shown, the refrigeration circuit 20 includes a first heat exchanger 21, a throttling component 22, a second heat exchanger 23 and a compressor 24. The first heat exchanger 21, the throttling component 22, the second heat exchanger 23 and the compressor 24 are connected in sequence to form a circulation loop, and the refrigerant medium can circulate among the first heat exchanger 21, the throttling component 22, the second heat exchanger 23 and the compressor 24; wherein, the first heat exchanger 21 is thermally connected to the first cooling circuit 30, and the first heat exchanger 21 can be set as a condenser, and the second heat exchanger 23 is thermally connected to the second cooling circuit 40, and the second heat exchanger 23 can be set as an evaporator; in this way, through the thermal connection between the first cooling circuit 30 and the first heat exchanger 21, and the thermal connection between the second cooling circuit 40 and the second heat exchanger 23, heat and cold can be better absorbed from the refrigeration circuit 20, thereby improving the system working capacity.

[0046] like Figures 2 to 9As shown, in some embodiments of the present invention, the thermal management system 100 also includes a third cooling circuit 50, the third cooling circuit 50 is connected to the reversing component 10, and the reversing component 10 is configured to control the conduction and isolation of any two of the first cooling circuit 30, the second cooling circuit 40 and the third cooling circuit 50; wherein, the first cooling circuit 30 includes a heating component 31, and the third cooling circuit 50 includes a battery component 51; in this way, cooling and heating can be achieved in a variety of environments, and heat and cold can be used to heat up and cool down the components in the circuit to meet the working needs of the vehicle.

[0047] Specifically, the reversing assembly 10 has a first working mode, a second working mode and a third working mode; in the first working mode, the reversing assembly 10 connects the first cooling circuit 30 and the second cooling circuit 40; in the second working mode, the reversing assembly 10 connects the first cooling circuit 30 and the third cooling circuit 50; in the third working mode, the reversing assembly 10 connects the second cooling circuit 40 and the third cooling circuit 50.

[0048] The present invention provides the following embodiments for explanation of the various working modes of the reversing assembly 10:

[0049] In some embodiments of the present invention, the reversing assembly 10 switches to a first operating mode; at this time, the reversing assembly 10 controls the first cooling circuit 30 and the second cooling circuit 40 to be turned on, and the cooling medium flows between the first cooling circuit 30 and the second cooling circuit 40; after the first cooling circuit 30 absorbs heat in the refrigeration circuit 20, it can be used to heat the passenger compartment and other components of the vehicle, and the residual heat of the first cooling circuit 30 after the heating operation can flow to the second cooling circuit 40, and the refrigeration circuit 20 can use the second cooling circuit 40 to return the residual heat to the circuit, thereby facilitating the normal operation of the thermal management system 100 in a low temperature environment.

[0050] like Figure 4 and Figure 5 In some embodiments of the present invention, the reversing assembly 10 switches to the second working mode; at this time, the reversing assembly 10 controls the first cooling circuit 30 and the third cooling circuit 50 to be connected, and the cooling medium flows between the first cooling circuit 30 and the third cooling circuit 50; after the first cooling circuit 30 absorbs heat in the refrigeration circuit 20, it can be used to heat the passenger compartment, and the heat can be transferred from the first cooling circuit 30 to the third cooling circuit 50 along with the cooling medium, and used to heat the battery assembly 51 in the third cooling circuit 50, so as to achieve heating of the passenger compartment and heating of the battery assembly 51, ensuring normal operation of the vehicle in a low temperature environment.

[0051] like Figure 3In some embodiments of the present invention, the reversing assembly 10 switches to the third working mode; at this time, the reversing assembly 10 controls the second cooling circuit 40 and the third cooling circuit 50 to be connected, and the cooling medium flows between the second cooling circuit 40 and the third cooling circuit 50; after the cooling medium in the second cooling circuit 40 absorbs cold energy from the refrigeration circuit 20, it can flow to the third cooling circuit 50 to cool the battery assembly 51 in the third cooling circuit 50, thereby preventing the operating temperature of the battery assembly 51 from being too high and ensuring the normal operation of the vehicle.

[0052] Furthermore, if Figures 2 to 9 As shown, in some embodiments of the present invention, the thermal management system 100 also includes a fourth cooling circuit 60, the fourth cooling circuit 60 is connected to the reversing component 10, and the reversing component 10 is configured to control the conduction and isolation of any two of the first cooling circuit 30, the second cooling circuit 40, the third cooling circuit 50 and the fourth cooling circuit 60; wherein, the fourth cooling circuit 60 includes an electric drive component 61 and a radiator 62, and the electric drive component 61 is connected to the radiator 62; in this way, cooling and heating can be achieved in a variety of environments, and the components in the heat and cold circuits can be used to heat and cool down to meet the working needs of the vehicle.

[0053] Specifically, the reversing assembly 10 also has a fourth working mode, a fifth working mode and a sixth working mode; in the fourth working mode, the reversing assembly 10 connects the first cooling circuit 30 and the fourth cooling circuit 60; in the fifth working mode, the reversing assembly 10 connects the second cooling circuit 40 and the fourth cooling circuit 60; in the sixth working mode, the reversing assembly 10 connects the third cooling circuit 50 and the fourth cooling circuit 60.

[0054] The present invention also provides the following embodiments for illustration of various working modes of the reversing assembly 10:

[0055] like Figure 3 In some embodiments of the present invention, the reversing component 10 switches to the fourth working mode; at this time, the reversing component 10 controls the first cooling circuit 30 and the fourth cooling circuit 60 to be connected, and the cooling medium flows between the first cooling circuit 30 and the fourth cooling circuit 60; after the first cooling circuit 30 absorbs heat in the refrigeration circuit 20, it can first flow to the radiator 62 of the fourth cooling circuit 60 under the control of the reversing component 10, and the cooling medium is cooled by the radiator 62. Then, the cooling medium can flow to the electric drive component 61, thereby achieving cooling of the electric drive component 61.

[0056] It can be understood that since the operating temperature of the electric drive component 61 is relatively high, the cooling medium that absorbs heat in the first cooling circuit 30 can cool down the electric drive component 61 after passing through the radiator 62. When the cooling medium temperature is lower than the operating temperature of the electric drive component 61, the electric drive component 61 can be cooled and dissipated.

[0057] like Figure 6 and Figure 7 In some embodiments of the present invention, the reversing component 10 switches to the fifth working mode; at this time, the reversing component 10 controls the second cooling circuit 40 and the fourth cooling circuit 60 to be connected, and the cooling medium flows between the second cooling circuit 40 and the fourth cooling circuit 60; after the second cooling circuit 40 absorbs cold energy in the refrigeration circuit 20, it can flow to the fourth cooling circuit 60 for absorbing heat in the radiator 62 and the electric drive component 61. The heat dissipation form of the radiator 62 is air cooling. In this way, the waste heat of the air and the electric drive component 61 can be recovered. Subsequently, the cooling medium can carry the heat back to the second cooling circuit 40, which is convenient for transferring the heat to the refrigeration circuit 20, that is, absorbing cold energy from the refrigeration circuit 20, ensuring the normal operation of the thermal management system 100, saving energy, and improving energy utilization.

[0058] like Figure 8 In some embodiments of the present invention, the reversing assembly 10 switches to the sixth working mode; at this time, the reversing assembly 10 controls the third cooling circuit 50 and the fourth cooling circuit 60 to be turned on, and the cooling medium flows between the third cooling circuit 50 and the fourth cooling circuit 60; the electric drive assembly 61 in the fourth cooling circuit 60 generates heat when working, thereby heating the cooling medium in the fourth cooling circuit 60, and then the cooling medium flows to the third cooling circuit 50, and the cooling medium transfers the heat to the battery assembly 51. In other words, the battery assembly 51 is heated by the waste heat of the electric drive assembly 61 to ensure the normal operation of the vehicle in a low temperature environment.

[0059] Of course, if Figure 9 The cooling medium can also absorb the heat of the battery assembly 51 in the third cooling circuit 50 and transfer the heat to the radiator 62 in the fourth cooling circuit 60, thereby cooling the battery assembly 51 through the radiator 62.

[0060] In some embodiments of the present invention, the thermal management system 100 also includes a fifth cooling circuit, which is connected to the reversing component 10, and the reversing component 10 is configured to control the conduction and isolation of any two of the first cooling circuit 30, the second cooling circuit 40 and the fifth cooling circuit; the first cooling circuit 30 includes a heating component 31, and the fifth cooling circuit includes an electric drive component 61 and a radiator 62, and the electric drive component 61 is connected to the radiator 62; in this way, cooling and heating can be achieved in a variety of environments, and the components in the heat and cold circuits can be used to heat and cool down to meet the working needs of the vehicle.

[0061] The fifth cooling circuit may be configured as the fourth cooling circuit 60 . It is understood that the implementation of the fifth cooling circuit refers to the implementation of the fourth cooling circuit 60 , and will not be described in detail herein.

[0062] In some embodiments of the present invention, the reversing assembly 10 includes a first reversing valve 11 and a second reversing valve.

[0063] Among them, the first reversing valve 11 connects the first cooling circuit 30, the second cooling circuit 40, the third cooling circuit 50 and the fourth cooling circuit 60, and is used to control the conduction and isolation of the first cooling circuit 30 and the second cooling circuit 40, the first cooling circuit 30 and the fourth cooling circuit 60, the second cooling circuit 40 and the third cooling circuit 50, the second cooling circuit 40 and the fourth cooling circuit 60, and the third cooling circuit 50 and the fourth cooling circuit 60; the second reversing valve connects the first cooling circuit 30 and the third cooling circuit 50, and is used to control the conduction and isolation of the first cooling circuit 30 and the third cooling circuit 50; in this way, the flow distribution of the cooling medium can be achieved more easily through the first reversing valve and the second reversing valve, and the cost of the thermal management system 100 can be reduced.

[0064] In combination with the foregoing, it can be understood that the reversing component 10 can control the conduction and isolation of any two of the first cooling circuit 30, the second cooling circuit 40, the third cooling circuit 50 and the fourth cooling circuit 60; the reversing component 10 includes a first reversing valve 11 and a second reversing valve, the second reversing valve can control the conduction and isolation of the first cooling circuit 30 and the second cooling circuit 40, and any two conductions of the remaining cooling circuits can be controlled by the first reversing valve 11. In this way, the control accuracy of the cooling medium flow distribution can be reduced, thereby reducing the cost of the thermal management system 100.

[0065] On the contrary, if the reversing assembly 10 controls any two of all cooling circuits, due to the excessive number of flow channels inside the reversing assembly 10 , when it is necessary to control the flow distribution of the cooling medium, the control accuracy requirement is high and the cost is also high.

[0066] Of course, according to actual conditions, the second reversing valve can control the conduction of the first cooling circuit 30 and the second cooling circuit 40, or the first cooling circuit 30 and the fourth cooling circuit 60, etc., and any two conductions of the remaining cooling circuits can be controlled by the first reversing valve 11.

[0067] In the above embodiment, the second reversing valve may be configured as a four-way valve to connect the first cooling circuit 30 and the third cooling circuit 50 respectively; however, this does not limit the scope of protection of the present invention.

[0068] like Figures 2 to 9 As shown, in some embodiments of the present invention, the reversing assembly 10 includes a first reversing valve 11 , a third reversing valve 12 and a one-way valve 14 .

[0069] Among them, the first reversing valve 11 connects the first cooling circuit 30, the second cooling circuit 40, the third cooling circuit 50 and the fourth cooling circuit 60, and is used to control the conduction and isolation of the first cooling circuit 30 and the second cooling circuit 40, the first cooling circuit 30 and the fourth cooling circuit 60, the second cooling circuit 40 and the third cooling circuit 50, the second cooling circuit 40 and the fourth cooling circuit 60, and the third cooling circuit 50 and the fourth cooling circuit 60; the third reversing valve 12 has a first end, a second end and a third end, the first end and the second end are connected in series to the first cooling circuit 30, and the second end is connected to the third cooling circuit 50, and the one-way valve 14 connects the first cooling circuit 30 and the third cooling circuit 50; in this way, the flow distribution of the cooling medium can be achieved more easily through the first reversing valve, the second reversing valve and the one-way valve, and the cost of the thermal management system 100 is reduced.

[0070] It will be appreciated that in this embodiment, the third reversing valve 12 is configured as a three-way valve. The third reversing valve 12, in conjunction with the one-way valve 14, can connect and disconnect the first cooling circuit 30 and the third cooling circuit 50, and distribute the flow of the cooling medium in the first cooling circuit 30 and the third cooling circuit 50, thereby improving the performance of the thermal management system 100. Furthermore, the three-way valve is a universal component, widely available on the market, and relatively low in cost, further reducing the cost of the thermal management system 100.

[0071] like Figures 2 to 9 As shown, in some embodiments of the present invention, the first cooling circuit 30 also includes a first driving member 32, the refrigeration circuit 20 includes a first heat exchanger 21, the first driving member 32, the heating component 31, the first heat exchanger 21 and the reversing component 10 are connected in sequence to form a loop, and the first heat exchanger 21 is used to heat the cooling medium; in this way, the first cooling circuit 30 can be used to heat the passenger compartment and other components of the vehicle to meet the user's usage needs.

[0072] Exemplarily, the heating component 31 includes a water-heating heater 311 and a heater core 312. The cooling medium circulates along the first driving member 32, the water-heating heater 311, the heater core 312, the first heat exchanger 21 and the reversing component 10. The cooling medium is driven to flow by the first driving member 32 and is heated by the water-heating heater 311. The cooling medium then releases heat in the heater core 312, realizing heating of the passenger compartment by the first cooling circuit 30, and then absorbs the heat generated by the phase change of the refrigerant in the first heat exchanger 21, and the cycle repeats.

[0073] like Figures 2 to 9As shown, in some embodiments of the present invention, the third cooling circuit 50 also includes a cooling assembly 52 and a second driving member 53, and the second driving member 53, the cooling assembly 52, the battery assembly 51 and the reversing assembly 10 are connected in sequence to form a loop; in this way, the third cooling circuit 50 can be used to supply cooling to the passenger compartment and cool other components of the vehicle to meet the user's usage needs.

[0074] Exemplarily, in combination with the third working mode of the above-mentioned reversing assembly 10, the cooling assembly 52 includes a cold air core, and the cooling medium circulates along the second driving member 53, the cold air core and the battery assembly 51. The cooling medium is driven to flow by the second driving member 53. The cooling medium can transfer the cold energy in the second cooling circuit 40 to the cold air core and the battery assembly 51, thereby realizing the cooling of the passenger compartment by the third cooling circuit 50 and the cooling of the battery assembly 51.

[0075] In some embodiments of the present invention, the reversing assembly 10 includes a fourth reversing valve, which connects the cooling assembly 52, the battery assembly 51 and the second cooling circuit 40. When the second cooling circuit 40 is connected to the third cooling circuit 50, the fourth reversing valve is configured to selectively control the cooling medium to flow to the cooling assembly 52 and the battery assembly 51; for example, the fourth reversing valve can control the low-temperature cooling medium in the second cooling circuit 40 to flow to the cooling assembly 52 alone, so that the cooling assembly 52 can cool the passenger compartment; for another example, the fourth reversing valve can control the low-temperature cooling medium in the second cooling circuit 40 to flow to the battery assembly 51 alone, so that the battery assembly 51 can be cooled; for another example, the fourth reversing valve can control the low-temperature cooling medium in the second cooling circuit 40 to flow to the cooling assembly 52 and the battery assembly 51 respectively, so that both passenger compartment cooling and battery assembly 51 cooling can be achieved; in this way, the functions of the thermal management system 100 can be enriched to meet the user's usage needs.

[0076] like Figures 2 to 9 As shown, in other embodiments of the present invention, the reversing assembly 10 includes a fifth reversing valve 13, the fifth reversing valve 13 has a fourth end, a fifth end and a sixth end, the fourth end is connected to the cooling assembly 52, the fifth end is connected to the inlet of the battery assembly 51, and the sixth end is connected to the outlet of the battery assembly 51, and the fifth reversing valve 13 is configured to selectively control the conduction between the fourth end and the fifth end and the sixth end; in this way, the functions of the thermal management system 100 can be enriched to meet the user's usage needs.

[0077] Specifically, when the second cooling circuit 40 and the third cooling circuit 50 are connected, the low-temperature cooling medium can flow from the second cooling circuit 40 through the second driving member 53, the cooling assembly 52 and the battery assembly 51 in sequence.

[0078] As needed, the passenger compartment can be cooled and the battery assembly 51 can be cooled individually or in combination.

[0079] For example, the passenger compartment can be cooled and the battery assembly 51 can be cooled simultaneously, wherein the fourth end and the fifth end of the fifth reversing valve 13 are connected, and the cooling medium can transfer cold energy to the cooling assembly 52 and the battery assembly 51 respectively.

[0080] For another example, the battery assembly 51 can be cooled separately, wherein the fourth end and the fifth end of the fifth reversing valve 13 are connected, the cooling assembly 52 does not work, that is, does not receive cold energy, and the cooling medium transfers cold energy to the battery assembly 51 separately.

[0081] For another example, cooling of a separate passenger compartment can be achieved, wherein the fourth end of the fifth reversing valve 13 is connected to the sixth end. At this time, the low-temperature cooling medium flows through the cooling component 52 instead of the battery component 51 and transfers cold energy to the cooling component 52.

[0082] like Figures 2 to 9 As shown, in some embodiments of the present invention, the fifth cooling circuit also includes a third driving member 63, and the radiator 62, the third driving member 63, the electric drive component 61 and the reversing component 10 are connected to form a circuit; in this way, the heat dissipation of the electric drive component 61 can be achieved through the fourth cooling circuit 60.

[0083] For example, in combination with the above, the fifth cooling circuit can be set as the fourth cooling circuit 60. When the fourth cooling circuit 60 is not connected to other cooling circuits, the cooling medium can circulate along the third driving member 63, the electric drive assembly 61 and the radiator 62. The cooling medium is driven by the third driving member 63 to flow and absorbs heat when flowing through the electric drive assembly 61. The heat is then transferred to the radiator 62 to achieve heat dissipation of the electric drive assembly 61. In addition, when the fourth cooling circuit 60 is connected to other cooling circuits, the fourth to sixth operating modes of the aforementioned reversing assembly 10 can be referred to, and no further details are given here.

[0084] Furthermore, if Figures 2 to 9 As shown, in some embodiments of the present invention, the fifth cooling circuit also includes a first branch 64, one end of the first branch 64 is connected to the inlet of the radiator 62, and the other end of the first branch 64 is connected to the outlet of the radiator 62; in this way, on the basis of achieving heating and cooling of the battery assembly 51, the fluid resistance can be reduced and the stability of the operation of the thermal management system 100 can be improved.

[0085] Exemplarily, in combination with the foregoing, the fifth cooling circuit can be set to the fourth cooling circuit 60. For ease of understanding, it is described in combination with the sixth working mode of the above-mentioned reversing component 10; the reversing component 10 switches to the sixth working mode, and the reversing component 10 controls the third cooling circuit 50 and part of the fourth cooling circuit 60 to be connected; in some examples, the cooling medium can flow from the third cooling circuit 50 through the first branch 64, the third drive member 63 and the electric drive component 61 in sequence, and finally flow back to the third cooling circuit 50. During this process, the cooling medium can heat the battery assembly 51 through the waste heat generated by the operation of the electric drive assembly 61, thereby ensuring the normal operation of the battery assembly 51 in a low temperature environment.

[0086] In other examples, the cooling medium may circulate between the battery assembly 51 of the third cooling circuit 50, the radiator 62 in the fourth cooling circuit 60, and the first branch 64. In this way, the cooling medium can absorb the heat of the battery assembly 51 and transfer the heat to the radiator 62, thereby achieving heat dissipation of the battery assembly 51 and improving the working stability of the battery assembly 51.

[0087] Based on the above example, the battery assembly 51 can be heated and cooled through the first branch 64. If there is no first branch 64, when realizing the above functions, the cooling medium needs to flow through the radiator 62 and the electric drive assembly 61, resulting in increased fluid resistance and waste of energy.

[0088] like Figures 2 to 9 As shown, in some embodiments of the present invention, the refrigeration circuit 20 also includes a bypass valve 70, which has an inlet end and an outlet end. The inlet end is connected to the inlet of the compressor 24, and the outlet end is connected to the outlet of the compressor 24. This arrangement can ensure the normal operation of the thermal management system 100 in a low-temperature environment.

[0089] Exemplarily, the thermal management system 100 also includes a fourth reversing valve and a fifth reversing valve, which are respectively set as three-way valves. The fourth reversing valve is respectively connected to the second heat exchanger 23, the inlet end of the bypass valve 70 and the inlet of the compressor 24, and the fifth reversing valve is respectively connected to the first heat exchanger 21, the outlet end of the bypass valve 70 and the outlet of the compressor 24; it can be understood that when the ambient temperature is low, it is difficult for the second heat exchanger 23 to absorb heat from the second cooling circuit 40 and the external environment. At this time, under the action of the fourth reversing valve and the fifth reversing valve, the refrigerant medium flows between the compressor 24 and the bypass valve 70, thereby heating the refrigerant medium. In this way, the refrigerant medium can absorb heat in the compressor 24 and release heat in the first heat exchanger 21, ensuring the normal operation of the refrigeration circuit 20.

[0090] The vehicle according to the embodiment of the present invention includes the thermal management system 100 according to the above embodiment. By applying the above thermal management system 100, the integration of the vehicle can be improved and the cost of the vehicle can be reduced.

[0091] In some specific examples of the present invention, Figure 2 As shown, an automotive thermal management secondary circuit system (i.e., thermal management system 100) provided in an embodiment of the present invention includes a refrigerant circuit and a coolant circuit. The refrigerant circuit comprises a compressor 24, a water-cooled condenser (i.e., a first heat exchanger 21), an intermediate heat exchanger (i.e., a second heat exchanger 23), a liquid storage tank, a first electronic expansion valve (i.e., a throttling component 22), and a second electronic expansion valve (i.e., a bypass valve 70). These components are connected by refrigerant piping or a refrigerant manifold, and pressure and temperature sensors can be added as needed.

[0092] The coolant circuit includes a first cooling circuit 30, a second cooling circuit 40, a third cooling circuit 50 and a fourth cooling circuit 60. The first cooling circuit 30 includes a nine-way valve (i.e., a first reversing valve 11), a warm air water pump (i.e., a first drive component 32), a water heater 311, a warm air core 312, a three-way valve 1 (i.e., a second reversing valve), a water-cooled condenser and a one-way valve 14, and each component is connected by a coolant pipeline or a coolant manifold. The second cooling circuit 40 includes components such as a nine-way valve and an intermediate heat exchanger, and each component is connected by a coolant pipeline or a coolant manifold, and temperature sensors, etc. can be added in between as needed. The third cooling circuit 50 includes a nine-way valve, a battery water pump (i.e., a second drive component 53), a cold air core and a three-way valve 2 (i.e., a fifth reversing valve 13), and each component is connected by a coolant pipeline or a coolant manifold. The fourth cooling circuit 60 includes a nine-way valve, a radiator 62 , an electric water pump (ie, a third driving member 63 ) and an electric drive assembly 61 , and each component is connected by a coolant pipeline or a coolant manifold.

[0093] like Figure 3 The figure shows the first working state of some embodiments of the present invention. In the refrigerant circuit, the electronic expansion valve 1 is controlled to be open, the electronic expansion valve 2 is closed, the compressor 24 is running, and the circuit is continuously working. In the coolant circuit, the nine-way valve is in mode A. In the first cooling circuit 30, the heater water pump is controlled to operate, the first port and the second port of the three-way valve 1 are connected, and the third port is closed. In the second cooling circuit 40, the battery water pump is controlled to operate, and the first port of the three-way valve 2 is connected to the second port and the third port at the same time. In the third cooling circuit 50, the electric drive water pump is controlled to operate. The above states can realize battery cooling, passenger compartment cooling and electric drive cooling functions. The battery cooling mode alone or the passenger cooling mode alone can be realized by controlling the opening and closing of the second port and the third port of the three-way valve 2.

[0094] like Figure 4The figure shows the second working state of some embodiments of the present invention. In the refrigerant circuit, the electronic expansion valve 1 is controlled to open, the compressor 24 is running, and the circuit is continuously working. In the coolant circuit, the nine-way valve is in mode B. In the first cooling circuit 30, the heater water pump is controlled to operate, and the first port of the three-way valve 1 is connected to the second port and the third port at the same time. In the second cooling circuit 40, the battery water pump is controlled to operate, and the first port of the three-way valve 2 is connected to the second port. In the third cooling circuit 50, the electric drive water pump is controlled to operate. The above states can realize the functions of passenger compartment heating, battery heating, air source and motor waste heat recovery. The battery heating mode alone or the passenger compartment heating mode alone can be realized by controlling the opening and closing of the second and third ports of the three-way valve. The hot gas bypass function can be realized by opening and closing the electronic expansion valve 2.

[0095] like Figure 5 The figure shows the third working state of some embodiments of the present invention. In the refrigerant circuit, the electronic expansion valve 1 is controlled to open, the compressor 24 is running, and the circuit is continuously working. In the coolant circuit, the nine-way valve is in mode C. In the first cooling circuit 30, the heater water pump is controlled to operate, and the first port of the three-way valve 1 is connected to the second port and the third port at the same time. In the second cooling circuit 40, the battery water pump is controlled to operate, and the first port of the three-way valve 2 is connected to the second port. In the third cooling circuit 50, the electric drive water pump is controlled to operate. The above states can realize the functions of passenger compartment heating, battery heating and motor waste heat recovery. The battery heating mode alone or the passenger compartment heating mode alone can be realized by controlling the opening and closing of the second and third ports of the three-way valve 1. The hot gas bypass function can be realized by opening and closing the electronic expansion valve 2.

[0096] like Figure 6 As shown, the fourth working state of some embodiments of the present invention. In the refrigerant circuit, the electronic expansion valve 1 is controlled to open, the compressor 24 is running, and the circuit continues to work. In the coolant circuit, the nine-way valve is in mode D. In the first cooling circuit 30, the operation of the warm air water pump is controlled, and the first port of the three-way valve 1 is connected to the second port. In the second cooling circuit 40, the operation of the battery water pump is controlled, and the first port of the three-way valve 2 is connected to the second port. In the third cooling circuit 50, the operation of the electric drive water pump is controlled. The above states can realize the battery waste heat recovery and passenger compartment heating functions. The hot gas bypass function can be realized by opening and closing the electronic expansion valve 2.

[0097] like Figure 7As shown, it is the fifth working state of some embodiments of the present invention. In the refrigerant circuit, the electronic expansion valve 1 is controlled to open, the compressor 24 is running, and the circuit continues to work. In the coolant circuit, the nine-way valve is in mode E. In the first cooling circuit 30, the operation of the warm air water pump is controlled, and the first port of the three-way valve 1 is connected to the second port. In the second cooling circuit 40, the operation of the battery water pump is controlled, and the first port of the three-way valve 2 is connected to the second port. In the third cooling circuit 50, the operation of the electric drive water pump is controlled. The above states can realize the battery waste heat recovery and passenger compartment heating functions. The hot gas bypass function can be realized by opening and closing the electronic expansion valve 2.

[0098] like Figure 8 The figure shows the sixth operating state of some embodiments of the present invention. In the refrigerant circuit, electronic expansion valve 1 and electronic expansion valve 2 are closed, and compressor 24 is not running. In the coolant circuit, the nine-way valve is in mode F. In the first cooling circuit 30, the heater water pump is not running. In the second cooling circuit 40, the battery water pump is running, and the first port of three-way valve 2 is connected to the second port. In the third cooling circuit 50, the electric drive water pump is running. The above states can realize the function of heating the battery with the waste heat of the electric drive.

[0099] like Figure 9 The figure shows the seventh operating state of some embodiments of the present invention. In the refrigerant circuit, electronic expansion valve 1 and electronic expansion valve 2 are closed, and compressor 24 is not operating. In the coolant circuit, the nine-way valve is in mode G. In the first cooling circuit 30, the heater water pump is not operating. In the second cooling circuit 40, the battery water pump is operating, and the first port of three-way valve 2 is connected to the second port. In the third cooling circuit 50, the electric drive water pump is not operating. These states enable the cooling function of the battery radiator 62.

[0100] In addition, it is understandable that according to relevant technologies, among refrigerants, R290 can become a potential next-generation refrigerant due to its excellent high and low temperature performance and low cost advantages. However, as a Class A3 refrigerant, it is flammable and explosive, and there are safety risks. The thermal management system 100 in the embodiment of the present invention includes a refrigeration circuit 20, a first cooling circuit 30, and a second cooling circuit 40. The refrigerant circuit is simplified through a double indirect architecture design. The refrigerant circuit exchanges cold and heat to the coolant through a water-cooled condenser and an intermediate heat exchanger, and then transmits the heat to the passenger compartment or battery, electric drive and other systems through the coolant to realize the cooling and heating functions of the system. The refrigerant does not enter the passenger compartment, and the charge volume is greatly reduced, which improves the safety of the application of R290 refrigerant. The simplification of the refrigerant circuit is conducive to the full integration of the agent-side components, further reducing the refrigerant charge volume and reducing system costs.

[0101] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0102] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0103] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0104] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0105] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.

[0106] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0107] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0108] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A thermal management system, characterized in that: include: Refrigeration circuit (20); a first cooling circuit (30) thermally connected to the refrigeration circuit (20) and configured to absorb heat from the refrigeration circuit (20); a second cooling circuit (40), the second cooling circuit (40) being thermally connected to the refrigeration circuit (20) and configured to absorb cold energy from the refrigeration circuit (20); A reversing assembly (10) is connected to the first cooling circuit (30) and the second cooling circuit (40) respectively, and is configured to control the conduction and isolation of the first cooling circuit (30) and the second cooling circuit (40).

2. The thermal management system according to claim 1, characterized in that The refrigeration circuit (20) includes a first heat exchanger (21), a throttling component (22), a second heat exchanger (23) and a compressor (24) connected in sequence, the first heat exchanger (21) is thermally connected to the first cooling circuit (30), and the second heat exchanger (23) is thermally connected to the second cooling circuit (40).

3. The thermal management system according to claim 1 or 2, characterized in that: The system further comprises a third cooling circuit (50), the third cooling circuit (50) being connected to the reversing assembly (10), and the reversing assembly (10) being configured to control the conduction and isolation of any two of the first cooling circuit (30), the second cooling circuit (40), and the third cooling circuit (50); The first cooling circuit (30) includes a heating component (31), and the third cooling circuit (50) includes a battery component (51).

4. The thermal management system according to claim 3, characterized in that: The system further comprises a fourth cooling circuit (60), the fourth cooling circuit (60) being connected to the reversing assembly (10), and the reversing assembly (10) being configured to control the conduction and isolation of any two of the first cooling circuit (30), the second cooling circuit (40), the third cooling circuit (50), and the fourth cooling circuit (60); The fourth cooling circuit (60) comprises an electric drive component (61) and a radiator (62), and the radiator (62) is connected to the electric drive component (61).

5. The thermal management system according to claim 1 or 2, characterized in that: The system further comprises a fifth cooling circuit, the fifth cooling circuit being connected to the reversing assembly (10), the reversing assembly (10) being configured to control the conduction and isolation of any two of the first cooling circuit (30), the second cooling circuit (40) and the fifth cooling circuit; The first cooling circuit (30) includes a heating component (31), the fifth cooling circuit includes an electric drive component (61) and a radiator (62), and the radiator (62) is connected to the electric drive component (61).

6. The thermal management system according to claim 4, characterized in that: The reversing assembly (10) comprises: a first reversing valve (11), the first reversing valve (11) connecting the first cooling circuit (30), the second cooling circuit (40), the third cooling circuit (50) and the fourth cooling circuit (60), and used to control the conduction and isolation of the first cooling circuit (30) and the second cooling circuit (40), the first cooling circuit (30) and the fourth cooling circuit (60), the second cooling circuit (40) and the third cooling circuit (50), the second cooling circuit (40) and the fourth cooling circuit (60), and the third cooling circuit (50) and the fourth cooling circuit (60); A second reversing valve is provided, wherein the second reversing valve connects the first cooling circuit (30) and the third cooling circuit (50), and is used to control the conduction and isolation of the first cooling circuit (30) and the third cooling circuit (50).

7. The thermal management system according to claim 4, characterized in that: The reversing assembly (10) comprises: a first reversing valve (11), the first reversing valve (11) connecting the first cooling circuit (30), the second cooling circuit (40), the third cooling circuit (50) and the fourth cooling circuit (60), and used to control the conduction and isolation of the first cooling circuit (30) and the second cooling circuit (40), the first cooling circuit (30) and the fourth cooling circuit (60), the second cooling circuit (40) and the third cooling circuit (50), the second cooling circuit (40) and the fourth cooling circuit (60), and the third cooling circuit (50) and the fourth cooling circuit (60); a third reversing valve (12), the third reversing valve (12) having a first end, a second end, and a third end, the first end and the second end being connected in series to the first cooling circuit (30), and the second end being connected to the third cooling circuit (50); A one-way valve (14) connects the first cooling circuit (30) and the third cooling circuit (50).

8. The thermal management system according to claim 3, characterized in that: The first cooling circuit (30) further includes a first driving member (32), the refrigeration circuit (20) includes a first heat exchanger (21), the first driving member (32), the heating component (31), the first heat exchanger (21) and the reversing component (10) are connected in sequence to form a circuit, and the first heat exchanger (21) is used to heat the cooling medium.

9. The thermal management system according to claim 3, characterized in that: The third cooling circuit (50) further comprises a cooling assembly (52) and a second driving member (53), wherein the second driving member (53), the cooling assembly (52), the battery assembly (51) and the reversing assembly (10) are sequentially connected to form a circuit.

10. The thermal management system according to claim 9, characterized in that: The reversing assembly (10) includes a fourth reversing valve, the fourth reversing valve being connected to the cooling assembly (52), the battery assembly (51) and the second cooling circuit (40), and when the second cooling circuit (40) is connected to the third cooling circuit (50), the fourth reversing valve is configured to selectively control the cooling medium to flow toward the cooling assembly (52) and the battery assembly (51); And / or, the reversing assembly (10) includes a fifth reversing valve (13), the fifth reversing valve (13) having a fourth end, a fifth end and a sixth end, the fourth end being connected to the cooling assembly (52), the fifth end being connected to the inlet of the battery assembly (51), and the sixth end being connected to the outlet of the battery assembly (51), and the fifth reversing valve (13) being configured to selectively control the fourth end to be connected to the fifth end and the sixth end.

11. The thermal management system according to claim 5, characterized in that: The fifth cooling circuit further includes a third driving member (63), and the radiator (62), the third driving member (63), the electric drive assembly (61) and the reversing assembly (10) are connected to form a circuit.

12. The thermal management system according to claim 11, wherein: The fifth cooling circuit further includes a first branch (64), one end of the first branch (64) is connected to the inlet of the radiator (62), and the other end of the first branch (64) is connected to the outlet of the radiator (62).

13. The thermal management system according to claim 2, wherein: The refrigeration circuit (20) further includes a bypass valve (70) having an inlet end and an outlet end, wherein the inlet end is connected to the inlet of the compressor (24) and the outlet end is connected to the outlet of the compressor (24).

14. A vehicle, characterized in that: Comprising a thermal management system according to any one of claims 1-13.

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