Thermal management system and vehicle having the same

Abstract

The application discloses a kind of thermal management systems, comprising: battery thermal management subsystem, the battery thermal management subsystem includes first dry road and second dry road, the first dry road is used to exchange heat with the first area of battery, the second dry road is used to exchange heat with the second area of battery, the first area and the second area are different, at least one of the first dry road and the second dry road exchanges heat with the battery;Heat exchange heat exchange unit, the battery thermal management subsystem and power thermal management subsystem are arranged in the heat exchange heat exchange unit, the battery thermal management subsystem and the power thermal management subsystem exchange heat by the heat exchange heat exchange unit, the power thermal management subsystem is used to heat dissipation to electronic module.Can reduce the energy consumption of thermal management system, improve the functionality of thermal management system, and also can realize waste heat recovery.

Description

TECHNICAL FIELD

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

[0002] In the existing whole-vehicle thermal management heat pump system architecture, the thermal management system has a single function, and the heat exchange of the battery module often cannot meet the battery temperature, the energy loss is large, and the working efficiency of the thermal management system is low. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a thermal management system, which can reduce the energy consumption of the thermal management system and improve the functionality of the thermal management system.

[0004] The present application also proposes a vehicle having the above-mentioned thermal management system.

[0005] According to the thermal management system of the present application, the battery thermal management subsystem includes a first dry road and a second dry road, the first dry road is used for heat exchange with the first area of the battery, the second dry road is used for heat exchange with the second area of the battery, the first area and the second area are different, and at least one of the first dry road and the second dry road exchanges heat with the battery; a heat exchange heat exchange unit is arranged between the battery thermal management subsystem and the power thermal management subsystem, the battery thermal management subsystem and the power thermal management subsystem exchange heat through the heat exchange heat exchange unit, and the power thermal management subsystem is used for heat dissipation of the electronic module.

[0006] According to the thermal management system of the present application, the battery thermal management subsystem can exchange heat with the battery in different efficiencies or different thermal management modes, which can reduce the energy consumption of the thermal management system, improve the functionality of the thermal management system, and also realize waste heat recovery, further reducing the energy consumption.

[0007] According to some embodiments of the present application, the temperature of the first area is higher than that of the second area; or the temperature rise rate of the first area is higher than that of the second area; or the first area is the electrode area of the battery.

[0008] According to some embodiments of the present application, the heat exchange heat exchange unit includes at least one heat exchange heat exchanger, each heat exchange heat exchanger includes a first flow channel and a second flow channel that exchange heat with each other, the first flow channel is arranged in the power thermal management subsystem, and the second flow channel is connected with at least one of the first dry road and the second dry road.

[0009] According to some embodiments of the present application, the heat management system further comprises a compressor and an outdoor condenser, an exhaust port of the compressor is connected with a first end of the outdoor condenser, a second end of the outdoor condenser is connected with an air inlet of the compressor through the first dry road, and the second end of the outdoor condenser is connected with the air inlet of the compressor through the second dry road; the exhaust port of the compressor is connected with the air inlet of the compressor through the first dry road, and the exhaust port of the compressor is connected with the air inlet of the compressor through the second dry road.

[0010] According to some embodiments of the present application, the first dry road is provided with a first heat exchange unit, a first flow regulating element and a second flow regulating element, the first flow regulating element is connected with a first end of the first heat exchange unit, the second flow regulating element is connected with a second end of the first heat exchange unit, and the first heat exchange unit is used for heat exchange with the first region.

[0011] The second dry road is provided with a second heat exchange unit, a third flow regulating element and a fourth flow regulating element, the third flow regulating element is connected with a first end of the second heat exchange unit, the fourth flow regulating element is connected with a second end of the second heat exchange unit, and the second heat exchange unit is used for heat exchange with the second region.

[0012] In some embodiments of the present application, the opening degrees of at least one of the first flow regulating element, the second flow regulating element, the third flow regulating element and the fourth flow regulating element are different, so that the heat exchange amounts of the first dry road and the second dry road are different.

[0013] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to a first threshold value, and a cooling instruction is received, the opening degree of the first flow regulating element is adjusted according to the superheat degree △TA of the second end of the first heat exchange unit, and the opening degree of the third flow regulating element is reduced every set time.

[0014] In some embodiments of the present application, when △TA<△TC, the opening degree of the first flow regulating element is reduced; when △TA>△TD, the opening degree of the first flow regulating element is increased; and when △TD≤△TA≤△TC, the first flow regulating element maintains the current opening degree.

[0015] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to a first threshold value, and a cooling instruction is received, the opening degrees of the second flow regulating element and the fourth flow regulating element are maximum.

[0016] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to a second threshold value, and a heating instruction is received, the opening degree of the fourth flow regulating element is maximum, and the opening degree of the second flow regulating element is decreased every set time.

[0017] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to a second threshold value, and a heating instruction is received, the opening degree of the first flow regulating element is adjusted according to the supercooling degree △T1 of the first end of the first heat exchange unit, and the opening degree of the third flow regulating element is adjusted according to the supercooling degree △T2 of the first end of the second heat exchange unit.

[0018] In some embodiments of the present application, when △T1<△T3, the opening degree of the first flow regulating element is decreased; when △TA>△T4, the opening degree of the first flow regulating element is increased; and when △T4≤△TA≤△T3, the first flow regulating element maintains the current opening degree.

[0019] When △T2<△T5, the opening degree of the third flow regulating element is decreased; when △T2>△T6, the opening degree of the third flow regulating element is increased; and when △T6≤△T2≤△T5, the third flow regulating element maintains the current opening degree.

[0020] In some embodiments of the present application, the power thermal management subsystem includes at least one of a high-voltage thermal management subsystem and an engine thermal management subsystem, the high-voltage thermal management subsystem is used for heat exchange of a motor and / or an electronic control, and the engine thermal management subsystem is used for heat exchange of an engine.

[0021] In some embodiments of the present application, the high-voltage thermal management subsystem includes a first radiator, and the first radiator and the heat exchange unit are connected to form a first cooling liquid circuit; and / or the engine thermal management subsystem includes a second radiator, and the second radiator and the heat exchange unit are connected to form a second cooling liquid circuit.

[0022] In some embodiments of the present application, the thermal management system further includes an air conditioning subsystem, the air conditioning subsystem includes a compressor, an in-vehicle condenser, an out-vehicle condenser, and an evaporator, an exhaust port of the compressor is connected to a first end of the in-vehicle condenser, a second end of the in-vehicle condenser is connected to a first end of the out-vehicle condenser, and two ends of the evaporator are respectively connected to a second end of the out-vehicle condenser and an air inlet of the compressor; the first dry circuit and the second dry circuit are connected in parallel, and the first dry circuit is connected between the second end of the out-vehicle condenser and the air inlet.

[0023] The vehicle according to an embodiment of the present application includes the thermal management system according to the above-described embodiments.

[0024] Additional aspects and advantages of the present application will be set forth in part in the description that follows, and in part will become apparent to those having ordinary skill in the art upon examination of the following or can be learned from practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 is a structural schematic diagram of a thermal management system according to an embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of a thermal management system and a power thermal management subsystem according to an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of a first embodiment of an electric cell according to the present application;

[0029] Figure 4 is a schematic diagram of a second embodiment of an electric cell according to the present application;

[0030] Figure 5 is a schematic diagram of a first embodiment of a battery pack according to the present application;

[0031] Figure 6 is a schematic diagram of a second embodiment of a battery pack according to the present application;

[0032] Figure 7 is a schematic diagram of a thermal management system according to some embodiments of the present application;

[0033] Figure 8 is a schematic diagram of a vehicle according to some embodiments of the present application.

[0034] REFERENCE NUMERALS:

[0035] a vehicle 1000,

[0036] a thermal management system 100, a power thermal management subsystem 200, a high-voltage thermal management subsystem 201, an engine thermal management subsystem 202, a battery 300, an electric cell 301, a non-electrode heat generation temperature region 301a, an electrode heat generation temperature region 301b,

[0037] an air conditioning circulation loop 101, a coolant circulation system 102,

[0038] a first dry road 10a, a second dry road 10b, a first exhaust flow passage 10c, a second exhaust flow passage 10d, a third exhaust flow passage 10e, a bypass flow path 10f, a series branch 10g,

[0039] compressor 11, first heat exchanger 12, in-vehicle condenser 120, second heat exchanger 13, out-of-vehicle condenser 130, third heat exchanger 14, evaporator 140, gas-liquid separator 15,

[0040] first heat exchange unit 21, second heat exchange unit 22,

[0041] first sensor 31, second sensor 32, third sensor 33, fourth sensor 34, fifth sensor 35,

[0042] first check valve 41, second check valve 42, third check valve 43, fourth check valve 44, fifth check valve 45,

[0043] first on-off valve 51, second on-off valve 52, third on-off valve 53, fourth on-off valve 54, fifth on-off valve 55, sixth on-off valve 56, series switch valve 57, parallel switch valve 58

[0044] first electronic expansion valve (first flow rate adjusting element) 61, second electronic expansion valve (second flow rate adjusting element) 62, third electronic expansion valve 63, fourth electronic expansion valve 64, third flow rate adjusting element 65, fourth flow rate adjusting element 66,

[0045] fourth heat exchanger 71, charging / discharging motor assembly 72, first radiator 73, switching valve group 74, water pump 75, fifth heat exchanger 76, engine assembly 77, second radiator 78,

[0046] first pressure sensor 81, first temperature sensor 82, DETAILED DESCRIPTION

[0047] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein like or similar elements are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below are exemplary only, and are not to be construed as limiting the present application.

[0048] Reference is made below to Figure 2 and Figure 7 A heat management system 100 according to an embodiment of the present application is described below.

[0049] According to the heat management system 100 of the embodiment of the present application, the battery heat management subsystem includes a first dry road 10a and a second dry road 10b, the first dry road 10a is used for heat exchange with the first area of the battery 300, and the second dry road 10b is used for heat exchange with the second area of the battery 300, the first area and the second area are different, and at least one of the first dry road 10a and the second dry road 10b exchanges heat with the battery 300. Specifically, when the heat management system 100 needs to cool or heat the battery 300, the first dry road 10a and the second dry road 10b can exchange heat with the battery 300, or one of the first dry road 10a and the second dry road 10b exchanges heat with the battery 300, so that the battery heat management subsystem can exchange heat with the battery 300 in different efficiencies or different heat management modes according to different heat exchange requirements, the energy consumption of the heat management system 100 can be reduced, and the functionality of the heat management system 100 can be improved.

[0050] The heat exchange unit is arranged between the battery heat management subsystem and the power heat management subsystem 200, and the battery heat management subsystem and the power heat management subsystem 200 exchange heat through the heat exchange unit. The power heat management subsystem 200 is used for heat dissipation of an electronic module.

[0051] Specifically, part of the heat exchange unit belongs to the battery heat management subsystem, and the other part belongs to the power heat management subsystem 200, and the power heat management subsystem 200 is used for heat dissipation of an electronic module, wherein the electronic module includes but is not limited to a motor, an engine, and other components of a vehicle that need to be cooled. The energy in the battery heat management subsystem and the energy in the power heat management subsystem 200 are exchanged at the heat exchange unit, so that waste heat recovery of the power heat management subsystem 200 can be achieved.

[0052] According to the heat management system 100 of the embodiment of the present application, the battery heat management subsystem can exchange heat with the battery 300 in different efficiencies or different heat management modes, the energy consumption of the heat management system 100 can be reduced, the functionality of the heat management system 100 can be improved, and waste heat recovery can be achieved, further reducing energy consumption.

[0053] In some embodiments of the present application, the temperature of the first region is higher than the temperature of the second region; or the temperature rising rate of the first region is higher than the temperature rising rate of the second region; or the first region is an electrode region of the battery 300, and the second region is a non-electrode region of the battery 300. Thus, the first dry line 10a and the second dry line 10b can be used to achieve independent heat exchange of the first region and the second region, and to achieve zoned temperature control. For example, by making the heat exchange amount of the first dry line 10a greater than the heat exchange amount of the second dry line 10b, or by making the temperature of the heat exchange medium in the first dry line 10a lower than the temperature of the heat exchange medium in the second dry line 10b when cooling, the cooling speed of the first region can be made faster, thereby achieving the uniformity of the battery 300.

[0054] It can be understood that when different rate performance battery modules are mixed in the battery 300, such as the mixing of power type and energy type modules, or the mixing of battery modules of different material systems, such as the mixing of sodium battery and lithium battery modules. At the same time, it is also possible that the same type of battery cell is divided into modules according to functional design requirements, for example, the charging and discharging currents between the modules are not the same, and the charging and discharging heat generation of different battery modules is different, thereby causing the battery to have a first region and a second region with different temperatures or different temperature rising rates.

[0055] It can also be understood that there are differences in the heat exchange between the battery 300 and the environment. Generally, the edge region of the battery 300 exchanges heat well with the environment and is greatly affected by the environment, while the central region of the battery 300 exchanges heat poorly with the environment and is less affected by the environment, thereby causing the first region and the second region to have different temperatures. It should be noted that the above is only an exemplary description of the temperature difference between the first region and the second region, and is not a limiting description.

[0056] In some embodiments of the present application, the heat exchange unit includes at least one heat exchange heat exchanger 70, each heat exchange heat exchanger 70 including a first flow channel and a second flow channel that exchange heat with each other, the first flow channel being provided in the power thermal management subsystem 200, and the second flow channel being connected with at least one of the first dry line 10a and the second dry line 10b. Thus, by using the heat exchange heat exchanger 70 provided with the first flow channel and the second flow channel that exchange heat with each other, heat exchange between the battery thermal management subsystem and the power thermal management subsystem 200 is achieved, and the structure of the thermal management system 100 is simple. It can be understood that the way to achieve heat exchange between the battery thermal management subsystem and the power thermal management subsystem 200 is not limited to this, for example, a first heat exchange pipe can be connected in series with one of the power thermal management subsystem 200 and the battery thermal management subsystem, a second heat exchange pipe can be connected in series with the other of the power thermal management subsystem 200 and the battery thermal management subsystem, and heat exchange can be achieved by using the two independently provided first heat exchange pipe and second heat exchange pipe.

[0057] As Figure 2As shown, in some embodiments of the present application, the power thermal management subsystem 200 comprises at least one of a high-voltage thermal management subsystem 201 for heat exchange of the motor and / or the electric control and an engine thermal management subsystem 202 for heat exchange of the engine. Thus, heat dissipation of the motor and / or the motor and the engine can be achieved.

[0058] Further, as shown, Figure 2 The high-voltage thermal management subsystem 201 comprises a first radiator 73 connected with the heat exchange heat exchanger to form a first cooling liquid circuit; and / or

[0059] The engine thermal management subsystem 202 comprises a second radiator 78 connected with the heat exchange heat exchanger to form a second cooling liquid circuit. Thus, the first radiator 73 and the second radiator 78 can be used to dissipate heat to the external environment, improving the heat dissipation effect.

[0060] In some examples of the present application, the power thermal management subsystem 200 comprises the high-voltage thermal management subsystem 201 and the engine thermal management subsystem 202, the heat exchange heat exchanger 70 comprises a fourth heat exchanger 71 and a fifth heat exchanger 76, the first radiator 73 is connected with the fourth heat exchanger 71 to form the first cooling liquid circuit, and the second radiator 78 is connected with the fifth heat exchanger 76 to form the second cooling liquid circuit, wherein the first cooling circuit and the second cooling liquid circuit are each provided with a water pump 75 to achieve circulation of the cooling liquid.

[0061] In some embodiments of the present application, as shown, Figure 1 、 Figure 2 and Figure 7 The thermal management system 100 further comprises a compressor 11 and an external condenser 130, the exhaust port of the compressor 11 is connected with the first end of the external condenser 130, the second end of the external condenser 130 is connected with the air inlet of the compressor 11 through the first dry circuit 10a, and the second end of the external condenser 130 is connected with the air inlet of the compressor 11 through the second dry circuit 10b. The exhaust port of the compressor 11 is connected with the air inlet of the compressor 11 through the first dry circuit 10a, and the exhaust port of the compressor 11 is connected with the air inlet of the compressor 11 through the second dry circuit 10b.

[0062] Specifically, when at least one of the first region and the second region of the battery 300 needs to be cooled, the refrigerant discharged from the exhaust port of the compressor 11 flows to at least one of the first dry circuit 10a and the second dry circuit 10b after flowing through the external condenser 130 to cool the battery 300, i.e. at this time the battery thermal management subsystem functions as an evaporator, and the refrigerant evaporates and absorbs heat in at least one of the first dry circuit 10a and the second dry circuit 10b.

[0063] When at least one of the first region and the second region of the battery 300 needs to be heated, the refrigerant discharged from the discharge port of the compressor 11 flows to at least one of the first dry road 10a and the second dry road 10b (i.e. at this time, the battery thermal management subsystem functions as a condenser, and the refrigerant is condensed and dissipated in at least one of the first dry road 10a and the second dry road 10b), and finally the refrigerant flows back to the exhaust port, thereby achieving the purpose of heating at least one of the first region and the second region. It needs to be explained that in the process of refrigerant circulation, the refrigerant also needs to pass through the throttling of the throttling element, which is well known to those skilled in the art, and will not be described in detail here.

[0064] As shown in Figure 7 In some embodiments of the present application, the first dry road 10a is provided with a first heat exchange unit 21, a first flow regulating element 61 and a second flow regulating element 65, the first flow regulating element 61 is connected to the first end of the first heat exchange unit 21, and the second flow regulating element 65 is connected to the second end of the first heat exchange unit 21, and the first heat exchange unit 21 is used for heat exchange with the first region.

[0065] The second dry road 10b is provided with a second heat exchange unit 22, a third flow regulating element 62 and a fourth flow regulating element 66, the third flow regulating element 62 is connected to the first end of the second heat exchange unit 22, and the fourth flow regulating element 66 is connected to the second end of the second heat exchange unit 22, and the second heat exchange unit 22 is used for heat exchange with the second region.

[0066] Further, the first flow regulating element 61 is located between the first heat exchange unit 21 and the external condenser 130, and the third flow regulating element 62 is located between the second heat exchange unit 22 and the external condenser 130, when the battery 300 needs to be cooled, the refrigerant flowing out of the external condenser 130 flows through the first flow regulating element 61, the first heat exchange unit 21 and the second flow regulating element 65 in turn, and the refrigerant flowing out of the external condenser 130 flows through the third flow regulating element 62, the second heat exchange unit 22 and the fourth flow regulating element 66 in turn. By providing the first flow regulating element 61, the second flow regulating element 65, the third flow regulating element 62 and the fourth flow regulating element 66, the independent adjustment of the first dry road 10a and the second dry road 10b can be realized, for example, the refrigerant flow and / or refrigerant temperature of the first heat exchange unit 21 can be adjusted by the first flow regulating element 61 and the second flow regulating element 65, and the refrigerant flow and / or refrigerant temperature of the second heat exchange unit 22 can be adjusted by the third flow regulating element 62 and the fourth flow regulating element 66, thereby realizing the independent adjustment of the temperature of the first region and the second region, and achieving the purpose of partition control.

[0067] Further, the opening degrees of at least one of the first flow regulating element 61, the second flow regulating element 65, the third flow regulating element 62 and the fourth flow regulating element 66 are different, so that the heat exchange amounts of the first dry road 10a and the second dry road 10b are different. Specifically, when the temperature of the first region is higher than that of the second region, or the temperature rising rate of the first region is greater than that of the second region, the preferential cooling of the first region can be realized by making the heat exchange amount of the first dry road 10a greater than that of the second dry road 10b during cooling, so that the uniformity of the battery 300 can be realized. During heating, the heat exchange amount of the first dry road 10a is made less than that of the second dry road 10b, so that the preferential heating of the second region can be realized.

[0068] In some embodiments of the present application, when the temperature of the first region is higher than that of the second region and the temperature difference is greater than or equal to the first threshold value, and a cooling instruction is received, the opening degree of the first flow regulating element 61 is adjusted according to the superheat degree ΔTA of the second end of the first heat exchange unit 21, and the opening degree of the third flow regulating element 62 is reduced every set time. It needs to be noted that the cooling instruction can be an operation instruction issued by the user, or an instruction issued by the system when it is detected that the battery 300 needs to be cooled, for example, when it is detected that the highest temperature of the battery 300 is greater than the first set temperature.

[0069] Specifically, the opening degree of the first flow regulating element 61 is adjusted according to the superheat degree ΔTA of the second end of the first heat exchange unit 21, which can ensure that the flow and / or temperature of the refrigerant in the first heat exchange unit 21 meet the cooling demand of the first region, and the opening degree of the third flow regulating element 62 is reduced every set time, which can reduce the amount of refrigerant of the second heat exchange unit 22, avoid excessive cooling of the second region, and thus realize the different heat exchange amounts of the first dry road 10a and the second dry road 10b, so that the uniformity of the battery 300 can be realized.

[0070] Further, when ΔTA < ΔTC, the opening degree of the first flow regulating element 61 is reduced; when ΔTA > ΔTD, the opening degree of the first flow regulating element 61 is increased; and when ΔTD ≤ ΔTA ≤ ΔTC, the first flow regulating element 61 maintains the current opening degree. Thus, the flow and / or temperature of the refrigerant in the first heat exchange unit 21 can meet the cooling effect of the first region, and excessive cooling of the first region can also be avoided. It needs to be noted that the values of ΔTC and ΔTD can be limited according to actual conditions.

[0071] In some embodiments of the present application, the opening degree of the third flow regulating element 62 is reduced every set time until it is detected that the temperature difference between the first region and the second region is less than the first threshold value, and then the third flow regulating element 62 resumes adjusting its opening degree according to the superheat degree ΔTB of the second end of the second heat exchange unit 22.

[0072] Specifically, when △TB < △TC2, the opening of the third flow regulating element 62 is reduced; when △TB > △TD2, the opening of the third flow regulating element 62 is increased; when △TD2≤△TB≤△TC2, the third flow regulating element 62 maintains the current opening. It should be noted that the values of △TC2 and △TD2 can be limited according to actual conditions.

[0073] In some embodiments of the present application, a first sensor 31 is arranged between the second flow regulating element 65 and the first heat exchange unit 21, a second sensor 32 is arranged between the first flow regulating element 61 and the first heat exchange unit 21, a third sensor 33 is arranged between the fourth flow regulating element 66 and the second heat exchange unit 22, and a fourth sensor 34 is arranged between the third flow regulating element 62 and the second heat exchange unit 22, so that the superheat of the second end of the first dry road 10a can be calculated by the pressure / temperature detected by the first sensor 31, and the superheat of the second end of the second dry road 10b can be calculated by the pressure / temperature detected by the third sensor 33.

[0074] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to the first threshold value, and a cooling instruction is received, the openings of the second flow regulating element 65 and the fourth flow regulating element 66 are maximum, so as to reduce the flow resistance of the first dry road 10a and the second dry road 10b and ensure the cooling effect.

[0075] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is less than the first threshold value, and a cooling instruction is received, the opening of the first flow regulating element 61 is adjusted according to the superheat △TA of the second end of the first heat exchange unit 21, the opening of the third flow regulating element 62 is adjusted according to the superheat △TB of the second end of the second heat exchange unit 22, and the openings of the second flow regulating element 65 and the fourth flow regulating element 66 are maximum. Thus, the cooling effect can be ensured.

[0076] Wherein when △TA < △TC1, the opening of the first flow regulating element 61 is reduced; when △TA > △TD1, the opening of the first flow regulating element 61 is increased; when △TD1≤△TA≤△TC1, the first flow regulating element 61 maintains the current opening. It should be noted that the values of △TC1 and △TD1 can be limited according to actual conditions.

[0077] When △TB < △TC2, the opening of the third flow regulating element 62 is reduced; when △TB > △TD2, the opening of the third flow regulating element 62 is increased; when △TD2≤△TB≤△TC2, the third flow regulating element 62 maintains the current opening. It should be noted that the values of △TC2 and △TD2 can be limited according to actual conditions.

[0078] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to the second threshold value, and a heating instruction is received, the opening of the fourth flow regulating element 66 is maximum, and the opening of the second flow regulating element 65 is reduced every set time. Thus, the heat exchange amount of the second main line 10b and the first main line 10a can be made different, the temperature of the refrigerant in the second main line 10b is higher than the temperature of the refrigerant in the first main line 10a, and / or the flow of the refrigerant in the second main line 10b is greater than the flow of the refrigerant in the first main line 10a, so that the second region is preferentially heated, and the uniformity of the battery 300 is achieved.

[0079] Further, after the opening of the second flow regulating element 65 is reduced every set time, until the temperature difference is less than the second threshold value, the reduction of the opening of the second flow regulating element 65 is stopped.

[0080] It should be noted that the heating instruction can be an operation instruction issued by a user or an instruction issued by the system when it is detected that the battery 300 needs to be heated, for example, when it is detected that the minimum temperature of the battery 300 is greater than the second set temperature.

[0081] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to the second threshold value, and a heating instruction is received, the opening of the first flow regulating element 61 is adjusted according to the supercooling degree ΔT1 of the first end of the first heat exchange unit 21, and the opening of the third flow regulating element 62 is adjusted according to the supercooling degree ΔT2 of the first end of the second heat exchange unit 22. Thus, the heat exchange amount of the first heat exchange unit 21 and the second heat exchange unit 22 can be adjusted in real time, and the uniformity of the battery 300 is ensured.

[0082] Further, when ΔT1 < ΔT3, the opening of the first flow regulating element 61 is reduced; when ΔTA > ΔT4, the opening of the first flow regulating element 61 is increased; and when ΔT4 ≤ ΔTA ≤ ΔT3, the first flow regulating element 61 maintains the current opening.

[0083] When ΔT2 < ΔT5, the opening of the third flow regulating element 62 is reduced; when ΔT2 > ΔT6, the opening of the third flow regulating element 62 is increased; and when ΔT6 ≤ ΔT2 ≤ ΔT5, the third flow regulating element 62 maintains the current opening. Thus, the uniformity of the battery 300 can be further ensured. It should be noted that T3, T4, T5, and T6 can be set according to actual conditions.

[0084] In some embodiments of the present application, when the temperature of the first region is higher than the temperature of the second region and the temperature difference is less than the second threshold value, and a heating instruction is received, the opening degrees of the second flow regulating element 65 and the fourth flow regulating element 66 are maximum, the opening degree of the first flow regulating element 61 is adjusted according to the supercooling degree AT1 of the first end of the first heat exchange unit 21, and the opening degree of the third flow regulating element 62 is adjusted according to the supercooling degree AT2 of the first end of the second heat exchange unit 22. Thus, the heat exchange amount of the first heat exchange unit 21 and the second heat exchange unit 22 can be adjusted in real time, and the uniformity of the battery 300 can be ensured.

[0085] Further, when AT1 < AT7, the opening degree of the first flow regulating element 61 is reduced; when AT2 > AT10, the opening degree of the third flow regulating element 62 is increased; and when AT10 ≤ AT2 ≤ AT9, the third flow regulating element 62 maintains the current opening degree. Thus, the uniformity of the battery 300 can be further ensured. It should be noted that T7, T8, T9 and T10 can be set according to actual conditions.

[0086] Further, when AT1 < AT7, the opening degree of the first flow regulating element 61 is reduced; when AT2 > AT10, the opening degree of the third flow regulating element 62 is increased; and when AT10 ≤ AT2 ≤ AT9, the third flow regulating element 62 maintains the current opening degree. Thus, the uniformity of the battery 300 can be further ensured. It should be noted that T7, T8, T9 and T10 can be set according to actual conditions.

[0087] Further, the supercooling degree AT1 of the first dry road 10a is calculated according to the pressure detected by the first sensor 31 and the temperature detected by the second sensor 32. The supercooling degree AT2 of the second dry road 10b is calculated according to the pressure detected by the third sensor 33 and the temperature detected by the fourth sensor 34, so that the real-time supercooling degree can be obtained.

[0088] According to some embodiments of the present application, the thermal management system 100 further comprises an air conditioning subsystem, which comprises a compressor 11, an in-vehicle condenser 120, an out-vehicle condenser 130 and an evaporator 140. The exhaust port of the compressor 11 is connected to the first end of the in-vehicle condenser 120, the second end of the in-vehicle condenser 120 is connected to the first end of the out-vehicle condenser 130, and the two ends of the evaporator 140 are respectively connected to the second end of the out-vehicle condenser 130 and the air inlet of the compressor 11. Thus, the in-vehicle condenser 120 can be used to heat the in-vehicle environment, and the evaporator 140 can be used to cool the in-vehicle environment.

[0089] The first dry road 10a and the second dry road 10b are connected in parallel, and the first dry road 10a is connected between the second end of the out-vehicle condenser 130 and the air inlet. Thus, the refrigerant flowing through the first dry road 10a and the second dry road 10b can be used to cool or heat the battery 300.

[0090] In some embodiments of the application, when the minimum temperature of the battery is ≤10℃, at least one of the first and second dry roads is controlled to heat the battery. When the minimum temperature of the battery is ≥12℃, the heating is exited.

[0091] In some embodiments of the application, when it is determined that the maximum temperature of the battery is ≥38℃, at least one of the first and second dry roads is controlled to cool the battery. When it is determined that the maximum temperature of the battery is ≤34℃, the cooling is exited.

[0092] In some embodiments of the application, the temperature rising rate of the first region is ≥2.5℃ / min, the temperature rate of the second region is <2.5℃ / min or the temperature rate of the second region is <1.5℃ / min, or the temperature rising rate of the first region is different from that of the second region.

[0093] In some embodiments of the application, when it is determined that the temperature rising rate of the first region is ≥2.5℃ / min and the minimum temperature of the battery is >10℃, the cooling partition control mode is controlled to enter, the first region is controlled to be preferentially cooled, and the heat exchange amount of the first dry road is controlled to be greater than that of the second dry road. H -T L When it is determined that the temperature rising rate of the first region is <1℃ / min or T0<10℃, the partition control mode is exited.

[0094] In some embodiments of the application, when it is determined that the temperature rising rate of the first region is ≥2.5℃ / min and the minimum temperature of the battery is >10℃, the cooling partition control mode is controlled to enter, the first region is controlled to be preferentially cooled, and the heat exchange amount of the first dry road is controlled to be greater than that of the second dry road.

[0095] In some embodiments of the application, when it is determined that T0≥10℃ and the minimum temperature of the battery is >10℃, the cooling partition control mode is controlled to enter, the first region is controlled to be preferentially cooled, and the heat exchange amount of the first dry road is controlled to be greater than that of the second dry road.

[0096] In some embodiments of the application, when it is determined that the temperature rising rate of the first region is ≥2.5℃ / min and the minimum temperature of the battery is <10℃, the heating partition control mode is controlled to enter, the second region is controlled to be preferentially heated, and the heat exchange amount of the second dry road is controlled to be greater than that of the first dry road.

[0097] In some embodiments of the application, when it is determined that T0≥10℃ and the minimum temperature of the battery is <10℃, the heating partition control is controlled to enter, the second region is controlled to be preferentially heated, and the heat exchange amount of the second dry road is controlled to be greater than that of the first dry road.

[0098] In some embodiments of the application, when it is determined that the maximum temperature of the battery is ≥40℃ and T H -T L When it is determined that the maximum temperature of the battery is <40℃ and T0<10℃, the partition control mode is exited.H -T L =T0, T0<10℃, exit the partition control mode.

[0099] In some embodiments of the present application, when it is determined that the maximum battery temperature ≥ 40℃ and T H -T L =T0, T0≥10℃, and the minimum battery temperature > 10℃, control enters the cooling partition control mode, controls the first region to be preferentially cooled, and controls the heat exchange amount of the first dry road to be greater than that of the second dry road.

[0100] In some embodiments of the present application, when it is determined that the maximum battery temperature ≤ -10℃ and T H -T L =T0, T0≥10℃, and the minimum battery temperature < 10℃, control enters the heating partition control mode, controls the second region to be preferentially heated, and controls the heat exchange amount of the second dry road to be greater than that of the first dry road.

[0101] Reference will be made to the following description Figures 1-2 A thermal management system 100 according to an embodiment of the present application is described.

[0102] The thermal management system 100 according to an embodiment of the present application includes a battery heat exchange module and a controller, and the battery heat exchange module includes: a first dry road 10a and a second dry road 10b, the first dry road 10a is provided with a first heat exchange unit 21, and the second dry road 10b is provided with a second heat exchange unit 22, and the first heat exchange unit 21 and the second heat exchange unit 22 are used for heat exchange with the battery.

[0103] The thermal management system 100 of the present application is used in a vehicle, wherein the vehicle can be a fuel automobile, or a gas automobile, or a new energy automobile, or a rail vehicle, and the new energy automobile can be a pure electric automobile, a hybrid automobile, or a range extended automobile, etc. The battery heat exchange module in the thermal management system 100 is suitable for heat exchange with the battery of the vehicle. The battery can be used for power supply of the vehicle, for example, the battery can be used as an operating power source of the vehicle, or the battery can be used as a driving power source of the vehicle to replace or partially replace fuel or natural gas to provide driving power for the vehicle, or the battery can be used for power supply of some components of the vehicle such as a motor, etc., so that the battery can be used for at least one of the working power demand in starting, navigation and driving of the vehicle, etc.

[0104] The first heat exchange unit 21 and the second heat exchange unit 22 can be used for heat exchange with the battery to adjust the temperature of the battery, so that the battery has a suitable working temperature, thereby ensuring the stable and reliable operation of the battery. For example, when the environmental temperature is low in winter, the battery can be heated to improve the starting speed of the battery. For another example, when the environmental temperature is too high in summer, or the working temperature of the battery is relatively high, the battery can be cooled to improve the working safety of the battery and prolong the working life of the battery.

[0105] The heat management system 100 further comprises a controller configured to control heat exchange between the battery and at least one of the first and second heat pipes 10a, 10b according to the temperature of the battery. The first and second heat exchange units 21, 22 are arranged in the first and second heat pipes 10a, 10b respectively, so that the controller can control heat exchange between the battery and one of the first and second heat exchange units 21, 22. The working medium flowing in the first and second heat pipes 10a, 10b can be the same or different. The working medium can be water, or other liquid working medium other than water, or other medium capable of phase change such as carbon dioxide or refrigerant. For example, the first heat pipe 10a flows with liquid working medium, and the second heat pipe 10b flows with medium capable of phase change. For example, the first heat pipe 10a can be connected with a high-pressure cooling system or an engine cooling system, and flows with cooling liquid in the high-pressure cooling system or the engine cooling system, and the second heat pipe 10b is connected with an air conditioning system and flows with medium capable of phase change in the air conditioning system.

[0106] The controller can control heat exchange between the battery and the first heat exchange unit 21, the controller can also control heat exchange between the battery and the second heat exchange unit 22, and the controller can also control heat exchange between the battery and both the first and second heat exchange units 21, 22, so that the actual needs of the battery can be selected.

[0107] For example, refer to Figure 5 , Figure 5 The figure shows an embodiment of the battery pack of the present application, which comprises a battery, a first heat exchange unit 21 and a second heat exchange unit 22, and the battery is arranged between the first and second heat exchange units 21, 22. The first heat exchange unit 21 is arranged on one side (top) of the battery, and the second heat exchange unit 22 is arranged on the other side (bottom) of the battery. The first heat exchange unit 21 is the upper cover of the battery, and the second heat exchange unit 22 is the bottom plate of the battery. When the battery needs a large amount of heat exchange, the first and second heat pipes 10a, 10b can be used for heat exchange at the same time, and when the battery needs a small amount of heat exchange, one of the first and second heat pipes 10a, 10b can be used for heat exchange. The first heat exchange unit 21 is arranged on one side of the battery, and the second heat exchange unit 22 is arranged on the other side of the battery. When the heat generation of one side of the battery is higher than the normal working temperature of the battery, the controller controls the heat exchange unit corresponding to the side to cool the battery.

[0108] When the battery needs a large amount of heat exchange, the first dry road 10a and the second dry road 10b can be allowed to exchange heat at the same time, and when the battery needs a small amount of heat exchange, one of the first dry road 10a and the second dry road 10b can be allowed to exchange heat. The first heat exchange unit 21 is arranged at one side of the battery, and the second heat exchange unit 22 is arranged at the other side of the battery. When the heat generation amount of one side of the battery is higher than the normal working temperature of the battery, the controller controls the heat exchange assembly corresponding to the side to cool the battery.

[0109] The first heat exchange unit 21 and the second heat exchange unit 22 are independent components and can work independently. The first dry road and the second dry road have different heat exchange modes. When the first heat exchange unit 21 and the second heat exchange unit 22 are arranged in different areas of the battery, the heat exchange effects of the first heat exchange unit 21 and the second heat exchange unit 22 can be opposite, for example, the first heat exchange unit 21 heats the battery, and at the same time, the second heat exchange unit 22 cools the battery, so that the temperature of the battery is uniform. The battery heat exchange module heat management mode includes: the first dry road and the second dry road heat at the same time or cool at the same time, one of the first dry road and the second dry road heats and one cools. According to the temperature of different areas of the battery, different heat management modes are adapted to make the temperature of the battery uniform.

[0110] For example, please refer to Figure 3 and Figure 4 , Figure 3 is a schematic view of the first embodiment of the battery cell of the application, Figure 4 is a schematic view of the second embodiment of the battery cell of the application. The battery includes a plurality of battery cells, and the plurality of battery cells are arranged in the battery. The two ends of the battery cell 301 are provided with electrodes, or one end of the battery cell 301 is provided with electrodes. When the battery cell 301 works, a large amount of heat will be generated at the electrodes. The area near the electrodes is the electrode heating area, and the area away from the electrodes is the non-electrode heating area. Under normal circumstances, when the battery 300 works, a large amount of heat will be generated at the electrodes, so that the temperature of the area near the electrodes is higher than the temperature of the area away from the electrodes. The first heat exchange unit 21 is arranged at one side or both sides of the electrode heating temperature area 301b of the battery, and the second heat exchange unit 22 is arranged at the non-electrode heating temperature area 301a of the battery. When the temperature of the electrode heating temperature area 301b is higher than the working temperature of the battery, the first heat exchange unit 21 cools the electrode heating temperature area 301b. When the temperature of the non-electrode heating temperature area 301a of the battery is lower than the working temperature of the battery, the second heat exchange unit 22 heats the non-electrode heating temperature area 301a of the battery.

[0111] For example, in one working condition, the efficiency of the first heat exchange unit 21 or the second heat exchange unit 22 alone exchanging heat with the battery can be lower than the efficiency of the first heat exchange unit 21 and the second heat exchange unit 22 jointly exchanging heat with the battery. In addition, the heat exchange efficiencies of the first heat exchange unit and the second heat exchange unit on the battery can also be different. Therefore, by setting the controller, the first heat exchange unit 21 or the second heat exchange unit 22, or the first heat exchange unit 21 and the second heat exchange unit 22 in combination can exchange heat with the battery, and the battery heat exchange module can exchange heat with the battery at different efficiencies. According to the temperature of the battery, the battery heat exchange module can exchange heat with the battery at a suitable efficiency, which can reduce the energy consumption of the thermal management system 100 and improve the functionality of the thermal management system 100.

[0112] According to the thermal management system 100 of the embodiment of the present application, by setting the first heat exchange unit 21 and the second heat exchange unit 22, and setting the controller to control at least one of the first heat exchange unit 21 and the second heat exchange unit 22 to exchange heat with the battery, the battery heat exchange module can exchange heat with the battery at different efficiencies or different thermal management modes. According to the temperature of the battery, the battery heat exchange module can exchange heat with the battery at a suitable efficiency or different thermal management modes, which can reduce the energy consumption of the thermal management system 100 and improve the functionality of the thermal management system 100.

[0113] In some embodiments of the present application, working medium circulates in the first dry road 10a and the second dry road 10b, and the working medium is suitable for exchanging heat with the battery at the first heat exchange unit 21 and the second heat exchange unit 22, thereby heating or refrigerating the battery.

[0114] In some embodiments of the present application, the thermal management system 100 further comprises an air conditioning circulation loop 101, the air conditioning circulation loop 101 comprises a heating branch, the first dry road 10a is connected in parallel with the heating branch, the second dry road 10b is connected in parallel with the heating branch, and the controller is used to control at least one of the heating branch, the first dry road 10a and the second dry road 10b to exchange heat.

[0115] The thermal management system 100 further comprises an air conditioning circulation loop 101, and the air conditioning circulation loop 101 is suitable for exchanging heat with the passenger compartment. For example, in winter when the ambient temperature is low, the air conditioning circulation loop 101 can heat the passenger compartment, and in summer when the ambient temperature is too high, the air conditioning circulation loop 101 can cool the passenger compartment, thereby improving the user's comfort. Alternatively, the working medium circulates in the air conditioning circulation loop 101, and the working medium exchanges heat in the heating branch to heat or refrigerate the passenger compartment.

[0116] The heating branch of the air conditioning circulation loop 101 is used to exchange heat with the passenger compartment to heat the passenger compartment. The heating branch is connected in parallel with the first dry road 10a and the second dry road 10b, and the heating branch, the first dry road 10a and the second dry road 10b all work independently of each other, and heating the passenger compartment and exchanging heat with the battery do not conflict with each other.

[0117] The controller can control the heating branch to heat alone, the controller can control the first heat exchange unit 21 on the first dry branch 10a to heat alone, and the controller can also control the second heat exchange unit 22 on the second dry branch 10b to heat alone. The controller can also control the heating branch, the first dry branch 10a and the second dry branch 10b to heat together. The controller can also control the heating branch, the first dry branch 10a and the second dry branch 10b to heat at the same time, the controller can control the heating branch to heat the passenger compartment at the same time, and the battery heat exchange module heats the battery. The controller can also control the heating branch to heat the passenger compartment at the same time, and the battery heat exchange module cools the battery.

[0118] In some embodiments of the application, the air conditioning circulation loop 101 comprises a cooling branch, the first dry branch 10a and the cooling branch are connected in parallel, the second dry branch 10b and the cooling branch are connected in parallel, and the controller is used to control at least one of the cooling branch, the first dry branch 10a and the second dry branch 10b to heat. The cooling branch comprises an evaporator 140 and a third electronic expansion valve 63, the electronic expansion valve 63 is located between the evaporator 140 and the outdoor condenser 130, and the cooling branch further comprises a third one-way valve 43, the third one-way valve 43 is located between the evaporator 140 and the compressor 11.

[0119] The cooling branch of the air conditioning circulation loop 101 is used to exchange heat with the passenger compartment to cool the passenger compartment. The cooling branch, the first dry branch 10a and the second dry branch 10b are all connected in parallel, and the cooling branch, the first dry branch 10a and the second dry branch 10b all work independently of each other, and cooling the passenger compartment and heating the battery do not conflict with each other.

[0120] The controller can control the heating branch to heat alone, the controller can control the first heat exchange unit 21 on the first dry branch 10a to heat alone, and the controller can also control the second heat exchange unit 22 on the second dry branch 10b to heat alone. The controller can also control the heating branch, the first dry branch 10a and the second dry branch 10b to heat together, the controller can control the heating branch to cool the passenger compartment at the same time, and the battery heat exchange module heats the battery. The controller can also control the heating branch to cool the passenger compartment at the same time, and the battery heat exchange module cools the battery.

[0121] In some embodiments of the application, the air conditioning circulation loop 101 comprises a cooling branch and a heating branch, the first dry branch 10a and the cooling branch are connected in parallel, the second dry branch 10b and the cooling branch are connected in parallel, the first dry branch 10a and the heating branch are connected in parallel, and the second dry branch 10b and the heating branch are connected in parallel. The controller is used to control at least one of the heating branch, the cooling branch, the first dry branch 10a and the second dry branch 10b to heat.

[0122] The thermal management system 100 further comprises an air conditioning circulation loop 101 adapted to exchange heat with the passenger cabin. For example, when the ambient temperature is low in winter, the air conditioning circulation loop 101 can heat the passenger cabin, and when the ambient temperature is too high in summer, the air conditioning circulation loop 101 can cool the passenger cabin, improving user comfort. The air conditioning circulation loop 101 comprises a cooling branch and a heating branch. The cooling branch of the air conditioning circulation loop 101 is used to exchange heat with the passenger cabin to cool the passenger cabin, and the heating branch of the air conditioning circulation loop 101 is used to exchange heat with the passenger cabin to heat the passenger cabin. Optionally, the working medium circulates in the air conditioning circulation loop 101, i.e., circulates in the heating and cooling branches, to heat or cool the passenger cabin.

[0123] The cooling branch is connected in parallel with the first and second dry lines 10a and 10b, and the heating branch is also connected in parallel with the first and second dry lines 10a and 10b. Therefore, the cooling branch, the heating branch, the first dry line 10a and the second dry line 10b all work independently of each other, and the heat exchange with the passenger cabin and the heat exchange with the battery do not conflict with each other.

[0124] The controller can control the heating branch to exchange heat alone, the controller can control the cooling branch to exchange heat alone, the controller can control the first heat exchange unit 21 on the first dry line 10a to exchange heat alone, and the controller can also control the second heat exchange unit 22 on the second dry line 10b to exchange heat alone.

[0125] The controller can also control any combination of the cooling branch, the heating branch, the first dry line 10a and the second dry line 10b to exchange heat simultaneously. The controller can control the cooling branch to cool the passenger cabin while controlling the battery heat exchange module to heat the battery, and the controller can also control the cooling branch to cool the passenger cabin while controlling the battery heat exchange module to cool the battery. The controller can control the heating branch to heat the passenger cabin while controlling the battery heat exchange module to heat the battery, and the controller can also control the heating branch to heat the passenger cabin while controlling the battery heat exchange module to cool the battery. The controller can control the cooling branch to cool the passenger cabin while controlling the heating branch to heat the passenger cabin. The passenger cabin can also be controlled to exchange heat with the battery while the cooling branch is controlled to cool the passenger cabin and the heating branch is controlled to heat the passenger cabin.

[0126] The heating branch of the air conditioning circulation loop 101 and the heating branch are connected in parallel with the first dry line 10a and the second dry line 10b, respectively, and work independently of each other. By setting the control valve, the thermal management system 100 can achieve different functions, and different functions can be performed simultaneously. The thermal management system 100 has strong functionality and improves the working efficiency of the thermal management system 100.

[0127] In some embodiments of the present application, the thermal management system 100 further comprises a storage device connected between the exhaust port of the compressor 11 and the intake port of the compressor 11.

[0128] When the compressor 11 is working, the working medium flows into the compressor 11 from the intake port, and the low-temperature and low-pressure gaseous working medium is compressed by the compressor 11 to become high-temperature and high-pressure gaseous working medium, and then flows out from the exhaust port of the compressor 11. The working medium can flow back to the compressor 11 after heat exchange to complete a cycle.

[0129] The storage device is connected between the exhaust port of the compressor 11 and the intake port of the compressor 11, and the storage device is configured to store the working medium and discharge the stored working medium. It can be understood that the phase state of the working medium is different when the working medium is heated and when the working medium is cooled, and the volume of the gaseous working medium is larger than that of the liquid working medium under the same mass, resulting in different working medium requirements when heating and cooling. By setting the storage device, the working medium can be stored and discharged, and the amount of working medium can be supplemented or reduced according to the temperature of the battery.

[0130] It can be understood that the liquid working medium is more convenient to store, so in some embodiments of the present application, the storage device is configured to liquefy the working medium in the storage device, and the storage device can store the liquid working medium. The storage device is connected between the exhaust port of the compressor 11 and the intake port of the compressor 11, and the storage device can liquefy the working medium flowing out from the exhaust port of the compressor 11 and store it in the storage device.

[0131] In some embodiments of the present application, the controller controls the storage device to supplement or reduce the working medium in the first main circuit 10a or / and the second main circuit 10b according to the temperature of the battery.

[0132] The phase state of the working medium is different when heating the battery and when cooling the battery, and the volume of the gaseous working medium is larger than that of the liquid working medium under the same mass, resulting in a higher working medium requirement when heating the battery than when cooling the battery. When the battery heat exchange module heats the battery, the controller controls the storage device to discharge the stored working medium and supplement it into the first main circuit 10a or / and the second main circuit 10b to meet the working medium requirement when heating the battery; when the battery heat exchange module cools the battery, the storage device stores the working medium flowing through to reduce the amount of working medium in the first main circuit 10a or / and the second main circuit 10b to meet the working medium requirement when cooling the battery.

[0133] In some embodiments of the present application, the storage device is configured as a liquid storage dryer, which is configured to store and discharge the liquid working medium. The liquid storage dryer can also filter out moisture and impurities in the working medium, avoid damaging or clogging the working medium pipeline, prolong the service life of the working medium pipeline, and make the working medium flow smoothly.

[0134] In some embodiments of the present application, the air conditioner circulation loop 101 comprises a compressor 11, a first heat exchanger 12 and a second heat exchanger 13. The compressor 11 comprises an air inlet and an air outlet. The air outlet of the compressor 11, the first heat exchanger 12, the second heat exchanger 13 and the air inlet of the compressor 11 are connected in sequence.

[0135] When the air conditioner circulation loop 101 is working, the working medium flows into the air inlet of the compressor 11. The low-temperature and low-pressure gaseous working medium is compressed by the compressor 11 into high-temperature and high-pressure gaseous working medium, and then flows out from the air outlet of the compressor 11. The first port of the first heat exchanger 12 is connected with the air outlet of the compressor 11, the second port of the first heat exchanger 12 is connected with the second heat exchanger 13, and the second heat exchanger 13 is connected with the air inlet of the compressor 11. Therefore, the working medium flows through the first heat exchanger 12 after flowing out of the compressor 11, and then flows through the second heat exchanger 13. After other heat exchange, it finally returns to the compressor 11, forming a working medium loop and completing a cycle.

[0136] The heating branch comprises the first heat exchanger 12. The first dry circuit 10a and the first heat exchanger 12 are connected in parallel, and the second dry circuit 10b and the first heat exchanger 12 are connected in parallel. The controller is used to control the air outlet of the compressor 11 to communicate with at least one of the first heat exchanger 12, the first dry circuit 10a and the second dry circuit 10b, so as to realize heat exchange of at least one of the first heat exchanger 12, the first dry circuit 10a and the second dry circuit 10b.

[0137] The heating branch is connected in parallel with the first dry circuit 10a and the second dry circuit 10b. The first heat exchanger 12 on the heating branch and the first heat exchange unit 21 on the first dry circuit 10a, and the second heat exchange unit 22 on the second dry circuit 10b are all connected in parallel with each other. The first heat exchanger 12, the first heat exchange unit 21 and the second heat exchange unit 22 work independently of each other.

[0138] The air outlet of the compressor 11 is selectively connected with at least one of the heating branch, the first dry circuit 10a and the second dry circuit 10b. The working medium flowing out of the air outlet of the compressor 11 is high-temperature and high-pressure gaseous working medium. Therefore, when the air outlet of the compressor 11 is connected with one of the heating branch, the first dry circuit 10a and the second dry circuit 10b, the heating branch, the first dry circuit 10a and the second dry circuit 10b heat.

[0139] The controller can control the exhaust port of the compressor 11 to communicate with the heating branch to realize heat exchange of the first heat exchanger 12. The controller can also control the exhaust port of the compressor 11 to communicate with the first dry road 10a to control the first heat exchange unit 21 to exchange heat. The controller can also control the exhaust port of the compressor 11 to communicate with the second dry road 10b to control the second heat exchange unit 22 to exchange heat. The controller can also control the exhaust port of the compressor 11 to simultaneously communicate with any one of the heating branch, the first dry road 10a and the second dry road 10b to control the first heat exchanger 12, the first heat exchange unit 21 or the second heat exchange unit 22 to simultaneously exchange heat. Alternatively, the controller can control the first heat exchanger 12 to heat the passenger compartment while controlling the battery heat exchange module to heat the battery.

[0140] In some embodiments of the present application, the air conditioner circulation loop 101 comprises a compressor 11, a second heat exchanger 13 and a third heat exchanger 14, the compressor 11 comprises an air inlet and an exhaust port, the exhaust port of the compressor 11, the second heat exchanger 13, the third heat exchanger 14 and the air inlet of the compressor 11 are connected in sequence.

[0141] The cooling branch comprises a third heat exchanger 14, the first dry road 10a and the third heat exchanger 14 are connected in parallel, the second dry road 10b and the third heat exchanger 14 are connected in parallel, and the controller is used to control the second heat exchanger 13 to communicate with at least one of the third heat exchanger 14, the first dry road 10a and the second dry road 10b to realize heat exchange of at least one of the third heat exchanger 14, the first dry road 10a and the second dry road 10b.

[0142] When the air conditioner circulation loop 101 works, the working medium flows into the air inlet of the compressor 11, the low-temperature and low-pressure gaseous working medium is compressed by the compressor 11 to become high-temperature and high-pressure gaseous working medium, and then flows out from the exhaust port of the compressor 11. The first port of the second heat exchanger 13 is connected with the exhaust port of the compressor 11, the second port of the second heat exchanger 13 is connected with the third heat exchanger 14, and the third heat exchanger 14 is connected with the air inlet of the compressor 11. Therefore, after the working medium flows out from the compressor 11, it flows through the second heat exchanger 13 and then flows through the third heat exchanger 14. The working medium is liquefied by heat release in the second heat exchanger 13, and then vaporized by heat absorption after pressure reduction to enter the third heat exchanger 14, so as to realize refrigeration in the third heat exchanger 14. Finally, the gaseous working medium returns to the compressor 11 to form a working medium loop and complete a cycle.

[0143] The cooling branch is connected in parallel with the first dry road 10a and the second dry road 10b, the third heat exchanger 14 on the cooling branch, the first heat exchange unit 21 on the first dry road 10a and the second heat exchange unit 22 on the second dry road 10b are connected in parallel with each other, and the third heat exchanger 14, the first heat exchange unit 21 and the second heat exchange unit 22 work independently.

[0144] The controller can control the second heat exchanger 13 to communicate with the cooling branch to realize heat exchange of the third heat exchanger 14. The controller can also control the second heat exchanger 13 to communicate with the first dry branch 10a to control heat exchange of the first heat exchange unit 21. The controller can also control the second heat exchanger 13 to communicate with the second dry branch 10b to control heat exchange of the second heat exchange unit 22. The controller can also control the second heat exchanger 13 to simultaneously communicate with any one of the cooling branch, the first dry branch 10a and the second dry branch 10b to control the third heat exchanger 14, the first heat exchange unit 21 or the second heat exchange unit 22 to simultaneously exchange heat. Alternatively, the controller can control the third heat exchanger 14 to simultaneously refrigerate the passenger compartment while controlling the battery heat exchange module to refrigerate the battery.

[0145] In some embodiments of the present application, the heat pump air conditioning cycle circuit 101 comprises a compressor 11, a first heat exchanger 12 and a second heat exchanger 13 and a third heat exchanger 14. The compressor 11 comprises an air inlet and an air outlet. The air outlet of the compressor 11, the first heat exchanger 12, the second heat exchanger 13, the third heat exchanger 14 and the air inlet of the compressor 11 are connected in sequence.

[0146] When the air conditioning cycle circuit 101 is working, the working medium flows into the compressor 11 from the air inlet. The low-temperature and low-pressure gaseous working medium is compressed by the compressor 11 into high-temperature and high-pressure gaseous working medium and flows out from the air outlet of the compressor 11. The first port of the first heat exchanger 12 is connected with the air outlet of the compressor 11, the second port of the first heat exchanger 12 is connected with the first port of the second heat exchanger 13, the second port of the second heat exchanger 13 is connected with the first port of the third heat exchanger 14, and the second port of the third heat exchanger 14 is connected with the air inlet of the compressor 11. Therefore, the working medium flows through the first heat exchanger 12 after flowing out of the compressor 11, then flows through the second heat exchanger 13, and then flows through the third heat exchanger 14, and finally returns to the compressor 11, forming a working medium loop and completing a cycle. The working medium exchanges heat in at least one of the first heat exchanger 12, the second heat exchanger 13 and the third heat exchanger 14, and then returns to the air inlet of the compressor 11 as gaseous working medium.

[0147] The heating branch comprises the first heat exchanger 12, the cooling branch comprises the third heat exchanger 14, the first dry branch 10a is connected in parallel with the first heat exchanger 12, the second dry branch 10b is connected in parallel with the first heat exchanger 12, the first dry branch 10a is connected in parallel with the third heat exchanger 14, and the second dry branch 10b is connected in parallel with the third heat exchanger 14. The second heat exchanger 13 can be located in the heating branch, the second heat exchanger 13 can also be located in the cooling branch, and the second heat exchanger 13 can also only serve as a pipeline for the working medium to pass through. The working medium neither absorbs heat nor releases heat in the second heat exchanger 13, which can be selected according to actual needs.

[0148] The heating branch is connected in parallel with the first main line 10a and the second main line 10b, the first heat exchanger 12 on the heating branch and the first heat exchange unit 21 on the first main line 10a and the second heat exchange unit 22 on the second main line 10b are connected in parallel with each other, and the first heat exchanger 12, the first heat exchange unit 21 and the second heat exchange unit 22 work independently of each other. The cooling branch is connected in parallel with the first main line 10a and the second main line 10b, the third heat exchanger 14 on the cooling branch and the first heat exchange unit 21 on the first main line 10a and the second heat exchange unit 22 on the second main line 10b are connected in parallel with each other, and the third heat exchanger 14, the first heat exchange unit 21 and the second heat exchange unit 22 work independently of each other.

[0149] Since the heating branch is connected in parallel with the first main line 10a and the second main line 10b, the exhaust port of the compressor 11 is selectively connected with at least one of the heating branch, the first main line 10a and the second main line 10b, and at least one of the heating branch, the first main line 10a and the second main line 10b is heated. Specifically, the working medium flowing out of the exhaust port of the compressor 11 is high-temperature and high-pressure gaseous working medium, so when the exhaust port of the compressor 11 is connected with one of the heating branch, the first main line 10a and the second main line 10b, at least one of the heating branch, the first main line 10a and the second main line 10b is heated.

[0150] Since the cooling branch is connected in parallel with the first main line 10a and the second main line 10b, the inlet port of the compressor 11 is selectively connected with at least one of the cooling branch, the first main line 10a and the second main line 10b, and the second heat exchanger 13 connected on the other side of the third heat exchanger 14 is also selectively connected with at least one of the heating branch, the first main line 10a and the second main line 10b, and at least one of the cooling branch, the first main line 10a and the second main line 10b is cooled and refrigerated. Alternatively, at least one of the cooling branch, the first main line 10a and the second main line 10b is refrigerated.

[0151] The controller is configured to control the exhaust port of the compressor 11 to be connected with at least one of the first heat exchanger 12, the first main line 10a and the second main line 10b, so as to heat at least one of the first heat exchanger 12, the first main line 10a and the second main line 10b.

[0152] The controller can control the exhaust port of the compressor 11 to communicate with the heating branch to realize heat exchange of the first heat exchanger 12. The controller can also control the exhaust port of the compressor 11 to communicate with the first dry road 10a to control heat exchange of the first heat exchange unit 21. The controller can also control the exhaust port of the compressor 11 to communicate with the second dry road 10b to control heat exchange of the second heat exchange unit 22. The controller can also control the exhaust port of the compressor 11 to simultaneously communicate with any of the heating branch, the first dry road 10a and the second dry road 10b to control simultaneous heat exchange of the first heat exchanger 12, the first heat exchange unit 21 or the second heat exchange unit 22. Alternatively, the controller can control the first heat exchanger 12 to heat the passenger compartment while controlling the battery heat exchange module to heat the battery.

[0153] Alternatively, the controller is configured to control the second heat exchanger 13 to communicate with at least one of the first dry road 10a, the second dry road 10b and the third heat exchanger 14 to realize heat exchange of at least one of the first dry road 10a, the second dry road 10b and the third heat exchanger 14.

[0154] The controller can control the second heat exchanger 13 to communicate with the cooling branch to realize heat exchange of the third heat exchanger 14. The controller can also control the second heat exchanger 13 to communicate with the first dry road 10a to control heat exchange of the first heat exchange unit 21. The controller can also control the second heat exchanger 13 to communicate with the second dry road 10b to control heat exchange of the second heat exchange unit 22. The controller can also control the second heat exchanger 13 to simultaneously communicate with any of the heating branch, the first dry road 10a and the second dry road 10b to control simultaneous heat exchange of the third heat exchanger 14, the first heat exchange unit 21 or the second heat exchange unit 22. Alternatively, the controller can control the third heat exchanger 14 to cool the passenger compartment while controlling the battery heat exchange module to cool the battery. Alternatively, the controller can control the first heat exchanger 12 to cool the passenger compartment while controlling the battery heat exchange module to heat the battery.

[0155] In some embodiments of the present application, the first heat exchanger 12 is an in-vehicle condenser 120 adapted to heat the passenger compartment. When the working medium flows in the working medium circuit formed by the compressor 11 and the in-vehicle condenser 120, the high-temperature and high-pressure gaseous working medium flowing out of the exhaust port of the compressor 11 exchanges heat at the in-vehicle condenser 120, the working medium is liquefied by heat release, and then the working medium is finally changed into low-temperature and low-pressure gaseous working medium flowing into the inlet of the compressor 11 after throttling, pressure reduction and heat absorption vaporization, completing a cycle. The in-vehicle condenser 120 can also only play a role of a pipeline, and the working medium flows through the in-vehicle condenser 120 without heat exchange.

[0156] In some embodiments of the present application, the working medium circuit is formed by the compressor 11, the in-vehicle condenser 120 and the second heat exchanger 13, the high-temperature and high-pressure gaseous working medium flowing out of the exhaust port of the compressor 11 exchanges heat at the in-vehicle condenser 120, the working medium releases heat and liquefies, and the in-vehicle condenser 120 is suitable for heating the passenger compartment.

[0157] The controller can control the exhaust port of the compressor 11 to selectively communicate with at least one of the in-vehicle condenser 120, the first heat exchange unit 21 and the second heat exchange unit 22. By changing the flow path of the working medium in the air conditioning circulation circuit 101 through the controller, heating of the passenger compartment and / or heating of the battery can be achieved.

[0158] It can be understood that the air conditioning circulation circuit 101 has multiple branches as a whole, and the compressor 11, the first heat exchanger 12 and the second heat exchanger 13 jointly form a working medium circuit, etc., which are all part of the air conditioning circulation circuit 101.

[0159] In some embodiments of the present application, the second heat exchanger 13 is an out-vehicle condenser 130, the working medium releases heat through the out-vehicle condenser 130, and the out-vehicle condenser 130 can heat, for example, when the ambient temperature is low in winter, the elements of the vehicle need to be preheated to start, and heating the elements through the out-vehicle condenser 130 can improve the starting speed of the vehicle. The out-vehicle condenser 130 can also only serve as a pipeline, and the working medium flows through the out-vehicle condenser 130 without heat exchange.

[0160] In some embodiments of the present application, the third heat exchanger 14 is an evaporator 140, and the evaporator 140 is suitable for cooling the passenger compartment.

[0161] When the working medium flows in the working medium circuit formed by the compressor 11 and the evaporator 140, the high-temperature and high-pressure gaseous working medium flowing out of the exhaust port of the compressor 11 first exchanges heat in the pipeline, the working medium releases heat and liquefies, and then the working medium enters the evaporator 140 after throttling and pressure reduction, the working medium vaporizes by absorbing heat at the evaporator 140, the evaporator 140 is cooled, and the working medium finally becomes low-temperature and low-pressure gaseous working medium flowing into the air inlet of the compressor 11, completing a cycle.

[0162] In some embodiments of the present application, the working medium circuit is formed by the compressor 11, the second heat exchanger 13 and the evaporator 140, the high-temperature and high-pressure gaseous working medium flowing out of the exhaust port of the compressor 11 exchanges heat at the second heat exchanger 13, the working medium releases heat and liquefies, and then the working medium enters the evaporator 140 after throttling and pressure reduction, the working medium vaporizes by absorbing heat at the evaporator 140, and is suitable for cooling the passenger compartment, and then becomes low-temperature and low-pressure gaseous working medium flowing into the air inlet of the compressor 11, completing a cycle.

[0163] The controller can control the second heat exchanger 13 to selectively communicate with at least one of the evaporator 140, the first heat exchange unit 21 and the second heat exchange unit 22. By setting the controller to change the flow path of the working medium in the air conditioning circulation loop 101, the passenger cabin refrigeration and / or the battery refrigeration can be achieved.

[0164] In some embodiments of the present application, in the working medium loop formed by the compressor 11, the indoor condenser 120, the outdoor condenser 130 and the evaporator 140, the high-temperature and high-pressure gaseous working medium flowing out of the exhaust port of the compressor 11 exchanges heat at the indoor condenser 120, the working medium is liquefied by heat release, and the indoor condenser 120 is suitable for heating the passenger cabin. The indoor condenser 120 can also only serve as a flow channel, and the working medium flows through the indoor condenser 120 without heat exchange. Then the working medium continues to flow to the outdoor condenser 130, and the working medium can exchange heat at the outdoor condenser 130, and the working medium can only pass through the outdoor condenser 130 without heat exchange at the outdoor condenser 130. The working medium liquefied by heat release enters the evaporator 140 through throttling and pressure reduction, and the working medium is vaporized by heat absorption at the evaporator 140, which is suitable for cooling the passenger cabin, and then the low-temperature and low-pressure gaseous working medium flows into the inlet of the compressor 11, completing a cycle.

[0165] The controller can control the exhaust port of the compressor 11 to selectively communicate with at least one of the indoor condenser 120, the first heat exchange unit 21 and the second heat exchange unit 22. And also can control the second heat exchanger 13 to selectively communicate with at least one of the evaporator 140, the first heat exchange unit 21 and the second heat exchange unit 22. By setting the controller to change the flow path of the working medium in the air conditioning circulation loop 101, the heat management system 100 can work in different working conditions, and the heat management system 100 of the present application has strong functionality.

[0166] When the controller controls the exhaust port of the compressor 11 to communicate with the indoor condenser 120, the controller controls the outdoor condenser 130 to communicate with the evaporator 140, and the controller controls the exhaust port of the compressor 11 not to communicate with the first dry circuit 10a and the second dry circuit 10b. The working medium does not exchange heat at the indoor condenser 120, the working medium releases heat at the outdoor condenser 130, and the working medium absorbs heat at the evaporator 140, and the heat management system 100 can realize the working condition of cooling the passenger cabin alone.

[0167] When the controller controls the discharge port of the compressor 11 to communicate with the in-vehicle condenser 120, controls the out-vehicle condenser 130 to communicate with the first dry road 10a and the second dry road 10b, and controls the discharge port of the compressor 11 not to communicate with the first dry road 10a and the second dry road 10b, and controls the out-vehicle condenser 130 not to communicate with the evaporator 140, the working medium passing through the in-vehicle condenser 120 does not exchange heat, the working medium passing through the out-vehicle condenser 130 releases heat, the working medium passing through the first heat exchange unit 21 and / or the second heat exchange unit 22 absorbs heat, and the heat management system 100 can realize the working condition of refrigerating the battery.

[0168] When the controller controls the discharge port of the compressor 11 to communicate with the in-vehicle condenser 120, controls the out-vehicle condenser 130 to communicate with the first dry road 10a and the second dry road 10b, and controls the out-vehicle condenser 130 to communicate with the evaporator 140, and controls the discharge port of the compressor 11 not to communicate with the first dry road 10a and the second dry road 10b, the working medium passing through the in-vehicle condenser 120 does not exchange heat, the working medium passing through the out-vehicle condenser 130 releases heat, the working medium passing through the first heat exchange unit 21 and / or the second heat exchange unit 22 absorbs heat, and the working medium passing through the evaporator 140 absorbs heat, and the heat management system 100 can realize the working condition of refrigerating the passenger compartment while refrigerating the battery.

[0169] When the controller controls the discharge port of the compressor 11 to communicate with the in-vehicle condenser 120, and controls the discharge port of the compressor 11 not to communicate with the first dry road 10a and the second dry road 10b, the working medium passing through the in-vehicle condenser 120 releases heat, and the heat management system 100 can realize the working condition of heating the passenger compartment.

[0170] When the controller controls the discharge port of the compressor 11 to communicate with the first dry road 10a and the second dry road 10b, and controls the discharge port of the compressor 11 not to communicate with the in-vehicle condenser 120, the working medium passing through the first heat exchange unit 21 and / or the second heat exchange unit 22 releases heat, and the heat management system 100 can realize the working condition of heating the battery.

[0171] When the controller controls the discharge port of the compressor 11 to communicate with the in-vehicle condenser 120, and controls the discharge port of the compressor 11 to communicate with the first dry road 10a and the second dry road 10b, the working medium passing through the in-vehicle condenser 120 releases heat, and at the same time, the working medium passing through the first heat exchange unit 21 and / or the second heat exchange unit 22 releases heat, and the heat management system 100 can realize the working condition of simultaneously heating the passenger compartment and the battery.

[0172] In some embodiments of the present application, the thermal management system 100 comprises a first exhaust flow channel 10c, the battery heat exchange module is connected to the air inlet through the first exhaust flow channel 10c, and the working medium flowing through the battery heat exchange module can flow back to the air inlet through the first exhaust flow channel 10c. For example, when the battery is cooled, the working medium flows out of the exhaust port, is cooled by the external condenser 130, absorbs heat at the battery heat exchange module, and then flows back to the air inlet through the first exhaust flow channel 10c.

[0173] The thermal management system 100 further comprises a second exhaust flow channel 10d connected to the exhaust port, the second exhaust flow channel 10d is connected to the first exhaust flow channel 10c, so that the battery heat exchange module is also connected to the exhaust port through the second exhaust flow channel 10d, and the working medium can flow to the battery heat exchange module through the second exhaust flow channel 10d. For example, when the battery is heated, the working medium flows out of the exhaust port, flows to the battery heat exchange module through the second heat exchange channel, and releases heat at the battery heat exchange module.

[0174] The thermal management system 100 further comprises a third exhaust flow channel 10e connecting the exhaust port and the internal condenser 120, and the working medium can flow to the external condenser 130 through the third exhaust flow channel 10e and release heat at the internal condenser 120.

[0175] In some embodiments of the present application, the controller comprises a plurality of control valve groups, and the control valve groups are actuated to communicate the exhaust port with at least one of the internal condenser 120 and the battery heat exchange module, so that the working medium of the exhaust port flows to the internal condenser 120 or the battery heat exchange module. By setting the control valve group, the flow direction of the working medium can be controlled to control the operation of the thermal management system 100.

[0176] In some specific embodiments of the present application, the control valve group comprises a first on-off valve 51, a second on-off valve 52 and a third on-off valve 53, the first on-off valve 51 is connected in series to the second exhaust flow channel 10d, and the third on-off valve 53 is connected between the external condenser 130 and the exhaust port, i.e. the third on-off valve 53 is connected in series to the third exhaust flow channel 10e. The second on-off valve 52 is connected in series to the first exhaust flow channel 10c, and when the second on-off valve 52 is closed, the working medium of the second exhaust flow channel 10d is prevented from flowing back to the air inlet.

[0177] The first on-off valve 51 can control the opening and closing of the second exhaust flow channel 10d to control whether the working medium flows from the exhaust port to the battery heat exchange module, and when the first on-off valve 51 is closed, the working medium is prevented from flowing to the battery heat exchange module. The third on-off valve 53 can control the opening and closing of the third flow channel to control whether the working medium flows from the exhaust port to the external condenser 130, and when the third on-off valve 53 is closed, the working medium is prevented from flowing to the external condenser 130.

[0178] The first exhaust flow channel 10c is connected with the gas return port, the second exhaust flow channel 10d is connected with the exhaust port, the second exhaust flow channel 10d is connected to the first exhaust flow channel 10c, when the second exhaust flow channel 10d is controlled to flow by the first on-off valve 51, the working medium flowing out of the exhaust port will flow to the first exhaust flow channel 10c from the second exhaust flow channel 10d, and then directly flow back to the gas return port. Therefore, by arranging the second on-off valve 52 in the first exhaust flow channel 10c, the second on-off valve 52 can control the on-off of the first exhaust flow channel 10c, and when the second on-off valve 52 is closed, the working medium of the second exhaust flow channel 10d is prevented from flowing to the gas inlet.

[0179] In some embodiments of the present application, a fourth electronic expansion valve 64 is further included, and the fourth electronic expansion valve 64 is connected in parallel with the third on-off valve 53.

[0180] In some embodiments of the present application, the thermal management system 100 further includes a first switch valve 41 and a second switch valve 42, the first switch valve 41 is connected in series between the second end of the battery heat exchange module and the third heat exchanger 14, and the second switch valve 42 is connected in series between the second end of the battery heat exchange module and the second heat exchanger 13. The first switch valve 41 can control the on-off between the battery heat exchange module and the third heat exchanger 14, and the second switch valve 42 can control the on-off between the battery heat exchange module and the second heat exchanger 13. When one of the first switch valve 41 and the second switch valve 42 is turned on, the first main circuit 10a is connected in parallel with the first heat exchanger 12, the second main circuit 10b is connected in parallel with the first heat exchanger 12, the first main circuit 10a is connected in parallel with the third heat exchanger 14, and the second main circuit 10b is connected in parallel with the third heat exchanger 14.

[0181] In some specific embodiments of the present application, the first switch valve 41 is configured as a first one-way valve 41, and the first one-way valve 41 is configured to allow the working medium to flow from the battery heat exchange module to the third heat exchanger 14. The first one-way valve 41 can control the working medium to stably flow from the battery heat exchange module to the third heat exchanger 14, improve the flowability of the working medium, avoid backflow of the working medium, and improve the working stability of the thermal management system 100. Moreover, the first one-way valve 41 can stably and continuously work, can reduce active control, and is convenient to operate.

[0182] In some specific embodiments of the present application, the second switch valve 42 is configured as a second one-way valve 42, and the second one-way valve 42 is configured to allow the working medium to flow from the second heat exchanger 13 to the battery heat exchange module. The second one-way valve 42 can control the working medium to stably flow from the second heat exchanger 13 to the battery heat exchange module, improve the flowability of the working medium, avoid backflow of the working medium, and improve the working stability of the thermal management system 100. Moreover, the second one-way valve 42 can stably and continuously work, can reduce active control, and is convenient to operate.

[0183] In some embodiments of the present application, the first dry road 10a is provided with a first sensor 31 and a second sensor 32, the first sensor 31 is located at the first end of the first heat exchange unit 21, and the second sensor 32 is located at the second end of the first heat exchange unit 21. The second dry road 10b is also provided with a third sensor 33 and a fourth sensor 34, the third sensor 33 is located at the first end of the second heat exchange unit 22, and the fourth sensor 34 is located at the second end of the second heat exchange unit 22.

[0184] By setting the sensor, the various values of the working medium in the first dry road 10a and the various values of the working medium in the second dry road 10b can be obtained intuitively and accurately. The controller can control the flow of the working medium in the first dry road 10a and the second dry road 10b according to the temperature of the battery, which not only is convenient to operate, but also can make the battery quickly reach the appropriate working temperature and improve the working stability of the battery.

[0185] In some specific embodiments of the present application, the first sensor 31 is configured as a pressure sensor, which can obtain the pressure of the working medium in the first dry road 10a, and the second sensor 32 is configured as a temperature sensor, which can obtain the temperature of the working medium in the first dry road 10a. The third sensor 33 is configured as a pressure sensor, which can obtain the pressure of the working medium in the second dry road 10b, and the fourth sensor 34 is configured as a temperature sensor, which can obtain the temperature of the working medium in the second dry road 10b.

[0186] In some embodiments of the present application, the first dry road 10a is provided with a first sensor 31, a second sensor 32 and a first flow regulating element, the first sensor 31 is located at the first end of the first heat exchange unit 21, the first flow regulating element is located at the second end of the first heat exchange unit 21, and the second sensor 32 is arranged between the second end of the first heat exchange unit 21 and the first flow regulating element. The second dry road 10b is also provided with a third sensor 33, a fourth sensor 34 and a second flow regulating element, the third sensor 33 is located at the first end of the second heat exchange unit 22, the second flow regulating element is located at the second end of the second heat exchange unit 22, and the fourth sensor 34 is arranged between the second end of the second heat exchange unit 22 and the second flow regulating element.

[0187] In some specific embodiments of the present application, the first sensor 31 is configured as a pressure sensor, which can obtain the pressure of the working medium in the first dry road 10a, and the second sensor 32 is configured as a temperature sensor, which can obtain the temperature of the working medium in the first dry road 10a. The third sensor 33 is configured as a pressure sensor, which can obtain the pressure of the working medium in the second dry road 10b, and the fourth sensor 34 is configured as a temperature sensor, which can obtain the temperature of the working medium in the second dry road 10b.

[0188] The first flow regulating element can regulate the flow of the working medium in the first dry pipe 10a, thereby regulating the pressure in the first dry pipe 10a, and playing a role of throttling and pressure reduction. The third flow regulating element can regulate the flow of the working medium in the second dry pipe 10b, thereby regulating the pressure in the second dry pipe 10b, and playing a role of throttling and pressure reduction. The working medium in the first dry pipe 10a and the second dry pipe 10b is kept within a safe range, so that the working medium in the first dry pipe 10a and the second dry pipe 10b does not have too high pressure to cause damage to the battery by breaking the pipeline, and the working stability of the battery is improved.

[0189] When the working medium flows in the working medium circuit formed by the compressor 11, the in-vehicle condenser 120, the out-of-vehicle condenser 130 and the battery heat exchange module, the working medium releases heat at the in-vehicle condenser 120 or the out-of-vehicle condenser 130, and becomes low-temperature and low-pressure liquid working medium after throttling and pressure reduction by the first flow regulating element and / or the second flow regulating element. The working medium becomes low-temperature and low-pressure gaseous working medium after evaporation and heat absorption in the battery heat exchange module, and the low-temperature and low-pressure gaseous working medium flows into the compressor 11 from the gas inlet, completing a cycle.

[0190] In some embodiments of the present application, the heat exchange element further comprises a third on-off valve and a fourth on-off valve, the third on-off valve is arranged in the first dry pipe 10a, and the fourth on-off valve is arranged in the second dry pipe 10b.

[0191] The third on-off valve can control the on-off of the first dry pipe 10a, and the fourth on-off valve can control the on-off of the second dry pipe 10b, so as to control the flow or stagnation of the working medium in the first dry pipe 10a or the second dry pipe 10b. The third on-off valve and the fourth on-off valve work independently of each other.

[0192] When the third on-off valve is turned on, the first dry pipe 10a is connected in parallel with the third heat exchanger 14, and the first dry pipe 10a is optionally connected in parallel with the first heat exchanger 12. When the fourth on-off valve is turned on, the second dry pipe 10b is connected in parallel with the third heat exchanger 14, and the second dry pipe 10b is optionally connected in parallel with the first heat exchanger 12.

[0193] In some specific embodiments of the present application, a first electronic expansion valve 61 is arranged in the first dry pipe 10a, and a second electronic expansion valve 62 is arranged in the second dry pipe 10b. A first sensor 31 is located at a first end of the first heat exchange unit 21, the first electronic expansion valve 61 is located at a second end of the first heat exchange unit 21, and a second sensor 32 is arranged between the second end of the first heat exchange unit 21 and the first electronic expansion valve 61. A third sensor 33 is located at a first end of the second heat exchange unit 22, the second electronic expansion valve 62 is located at a second end of the second heat exchange unit 22, and a fourth sensor 34 is arranged between the second end of the second heat exchange unit 22 and the second electronic expansion valve 62.

[0194] The electronic expansion valve has a flow regulating function, and can reduce the pressure of the working medium flowing therethrough. The electronic expansion valve also has an on-off function, and can optionally close the pipeline to control the flow or stagnation of the working medium in the pipeline where the electronic expansion valve is located. Therefore, the first electronic expansion valve 61 provided on the first dry road 10a can cancel the first flow regulating element and the third on-off valve, and similarly, the second electronic expansion valve 62 provided on the second dry road 10b can cancel the second flow regulating element and the fourth on-off valve, thereby reducing the number of elements and reducing the arrangement difficulty.

[0195] In some embodiments of the present application, a fifth on-off valve is provided at the first end of the evaporator 140, and the fifth on-off valve is connected in series between the evaporator 140 and the inlet of the compressor 11. The fifth on-off valve can control the on-off of the pipeline where the evaporator 140 is located. When the fifth on-off valve is turned on, the working medium can flow to the compressor 11 through the evaporator 140.

[0196] In some embodiments of the present application, the fifth on-off valve is configured as a third one-way valve 43, and the third one-way valve 43 is configured to allow the working medium to flow from the evaporator 140 to the compressor 11. The third one-way valve 43 can control the stable flow of the working medium from the evaporator 140 to the compressor 11, improve the flowability of the working medium, avoid backflow of the working medium, and improve the working stability of the thermal management system 100. Moreover, the third one-way valve 43 can work stably and continuously, and can reduce active control and facilitate operation.

[0197] In some embodiments of the present application, a third electronic expansion valve 63 is provided at the second end of the evaporator 140, and the third electronic expansion valve 63 is connected in series between the vehicle external condenser 130 and the evaporator 140. The electronic expansion valve has a flow regulating function, and the third electronic expansion valve 63 can reduce the pressure of the working medium flowing therethrough. The electronic expansion valve also has an on-off function, and can optionally close the pipeline to control whether the working medium flows to the evaporator 140.

[0198] When the working medium flows in the working medium circuit formed by the compressor 11, the vehicle internal condenser 120, the vehicle external condenser 130 and the evaporator 140, the working medium releases heat at the vehicle internal condenser 120 or the vehicle external condenser 130, and becomes low-temperature and low-pressure liquid working medium after throttling and pressure reduction by the third electronic expansion valve 63. The working medium becomes low-temperature and low-pressure gaseous working medium after evaporation and heat absorption in the evaporator 140, and the low-temperature and low-pressure gaseous working medium flows into the compressor 11 from the inlet, completing a cycle.

[0199] In some embodiments of the present application, the thermal management system 100 further comprises a bypass flow path 10f in series with a fourth on-off valve 54, the bypass flow path 10f being connected in parallel with the fifth switch valve, the evaporator 140 and the third electronic expansion valve 63 in series. The fourth on-off valve 54 can control the flow and isolation of the bypass flow path 10f. When the fourth on-off valve 54 is turned on, the working medium flows back to the suction port through the bypass flow path 10f; when the fourth on-off valve 54 is blocked, the working medium flows back to the suction port through the flow path where the evaporator 140 is located.

[0200] In some specific embodiments of the present application, a fifth on-off valve 55 is arranged at the first end of the external condenser 130, and the fifth on-off valve 55 is in series between the external condenser 130 and the exhaust port of the compressor 11. When the fifth on-off valve 55 is turned on, the working medium can flow to the external condenser 130.

[0201] In some specific embodiments of the present application, a fourth one-way valve 44 is arranged at the second end of the external condenser 130, and the fourth one-way valve 44 is configured to allow the working medium to flow out of the external condenser 130, thereby improving the flowability of the working medium and preventing backflow of the working medium.

[0202] In some embodiments of the present application, the thermal management system 100 further comprises a sixth on-off valve 56, which is arranged on the side of the first switch valve 41 away from the battery heat exchange module. When the sixth on-off valve 56 is turned on, the working medium can flow from the battery heat exchange module to the evaporator 140.

[0203] In some embodiments of the present application, the thermal management system 100 further comprises a fifth one-way valve 45, which is arranged between the battery heat exchange module and the suction port of the compressor 11, and the fifth one-way valve 45 is configured to allow the working medium to flow from the battery heat exchange module to the suction port of the compressor 11, thereby preventing the working medium flowing to the suction port from flowing to the heat exchange assembly and improving the safety of the heat exchange assembly.

[0204] In some embodiments of the present application, the thermal management system 100 further comprises a gas-liquid separator 15, which is in communication with the suction port of the compressor 11. After throttling evaporation, the working medium becomes low-temperature and low-pressure gaseous working medium. Since evaporation is endothermic and cannot completely ensure that all working medium is converted into gaseous working medium, the working medium flows into the gas-liquid separator 15 before flowing into the compressor 11 again. The gas-liquid separator 15 separates the gaseous working medium and the liquid working medium, and only drives the low-temperature and low-pressure gaseous working medium to flow to the compressor 11, thereby preventing liquid droplets from impacting the functional components in the compressor 11 and ensuring the safe and normal operation of the compressor 11.

[0205] In some embodiments of the present application, the thermal management system 100 further comprises a series branch 10g, one end of the series branch 10g is connected with the first main circuit 10a, the other end of the series branch 10g is connected with the second main circuit 10b, and the controller is further configured to control the series branch 10g to realize series connection of the first main circuit 10a and the second main circuit 10b according to the temperature of the battery, so that the first main circuit 10a and the second main circuit 10b exchange heat at the same time.

[0206] In some specific embodiments of the present application, the first interface of the first heat exchange unit 21 is connected with the second interface of the second heat exchange unit 22 through the series branch 10g. The working medium flows into the first interface of the first heat exchange unit 21, then flows through the first heat exchange unit 21, then flows through the series branch 10g to the second heat exchange unit 22, and finally flows out of the first interface of the second heat exchange unit 22.

[0207] In some embodiments of the present application, the series branch 10g comprises a series switch valve 57, and the first interface of the first heat exchange unit 21 is connected with the second interface of the second heat exchange unit 22 through the series switch valve 57. The series switch valve 57 can control the opening and closing of the series branch 10g. When the series switch valve 57 closes the series branch 10g, the first main circuit 10a and the second main circuit 10b are connected in parallel. When the series switch valve 57 connects the series branch 10g, the first main circuit 10a and the second main circuit 10b can be connected in series.

[0208] In some embodiments of the present application, the first sensor 31 is arranged between one end of the series branch 10g and the first interface of the first heat exchange unit 21, and the third sensor 33 is arranged between the other end of the series branch 10g and the second interface of the second heat exchange unit 22. When the first heat exchange unit 21 and the second heat exchange unit 22 are connected in series, the first sensor 31, the second sensor 32, the third sensor 33 and the fourth sensor 34 can all detect the information of the working medium.

[0209] In some embodiments of the present application, the thermal management system 100 further comprises a parallel switch valve 58, the parallel switch valve 58 is arranged on one side of the first interface of the first heat exchange unit 21 and the first interface of the second heat exchange unit 22, and the parallel switch valve 58 can control the opening and closing of the first main circuit 10a and the second main circuit 10b. When the parallel switch valve 58 is turned on, the first main circuit 10a and the second main circuit 10b can be connected in parallel.

[0210] In some embodiments of the present application, the first heat exchange unit 21 is arranged on one side of the battery, and the second heat exchange unit 22 is arranged on the other side of the battery. Heat exchange is performed on different sides of the battery, which can improve the heat exchange efficiency of the battery.

[0211] In some embodiments of the present application, the first heat exchange unit 21 is a first heat exchange plate, and the second heat exchange unit 22 is a second heat exchange plate. The first heat exchange plate and the second heat exchange plate are arranged on opposite sides of the battery. Compared with the design of arranging one heat exchange plate, the first heat exchange plate and the second heat exchange plate can cool or heat the opposite sides of the battery, which can improve the cooling or heating efficiency of the battery, make the battery quickly reach a suitable working temperature, and improve the working stability of the battery.

[0212] In some embodiments of the present application, at least one of the first heat exchange unit 21 and the second heat exchange unit 22 includes a plurality of heat exchange components connected in parallel. By arranging a plurality of heat exchange components, the heat exchange area with the battery can be increased, and the heat exchange efficiency of the battery can be further improved.

[0213] In some embodiments of the present application, one heat exchange component is arranged at the electrode heating area of the battery, and one heat exchange component is arranged at the non-electrode heating area of the battery.

[0214] The controller can control the heat exchange component arranged at the electrode heating area of the battery to greatly cool, and control the heat exchange component arranged at the non-electrode heating area of the battery to slightly cool according to the temperature of the battery. Alternatively, the controller can control the heat exchange component arranged at the electrode heating area of the battery to cool, and control the heat exchange component arranged at the non-electrode heating area of the battery to heat according to the temperature of the battery.

[0215] The following refers to Figure 1 Embodiments of the heat management system 100 working in different operating conditions are described.

[0216] Embodiment one is the operating condition of only cooling the passenger compartment.

[0217] In the operating condition of only cooling the passenger compartment, the working medium flows in the working medium circuit formed by the compressor 11, the vehicle indoor condenser 120, the vehicle outdoor condenser 130, and the evaporator 140. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 disconnects the first exhaust flow channel 10c, the third on-off valve 53 connects the third flow channel, the fourth on-off valve 54 disconnects the bypass flow path 10f, the fifth on-off valve 55 connects the pipeline, and the sixth on-off valve 56 disconnects the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 disconnect the pipeline, the third electronic expansion valve 63 connects the pipeline to throttle, and the fourth electronic expansion valve 64 disconnects the pipeline.

[0218] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the in-vehicle condenser 120, the third on-off valve 53, the fifth on-off valve 55, the out-of-vehicle condenser 130, the fourth one-way valve 44, the third electronic expansion valve 63, the evaporator 140, the third one-way valve 43, the fifth sensor 35, and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0219] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11, flows to the in-vehicle condenser 120 through the third flow channel, the in-vehicle condenser 120 only functions as a pipeline, the working medium continues to flow to the out-of-vehicle condenser 130, the working medium is liquefied and releases heat at the out-of-vehicle condenser 130, then the working medium flows to the evaporator 140 after being throttled and depressurized by the third electronic expansion valve 63, the working medium is heated and vaporized at the evaporator 140, and finally the low-temperature and low-pressure gaseous working medium flows into the inlet of the compressor 11, thereby realizing the refrigeration of the evaporator 140 to the passenger compartment.

[0220] The second embodiment is a working condition of only battery cooling, and the first heat exchange unit 21 and the second heat exchange unit 22 work independently, wherein the first heat exchange unit 21 works and the second heat exchange unit 22 does not work.

[0221] In the working condition of only battery cooling, the working medium flows in the working medium circuit formed by the compressor 11, the in-vehicle condenser 120, the out-of-vehicle condenser 130, and the first heat exchange unit 21. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 connects the first exhaust flow channel 10c, the third on-off valve 53 connects the third flow channel, the fourth on-off valve 54 disconnects the bypass flow path 10f, the fifth on-off valve 55 connects the pipeline, and the sixth on-off valve 56 disconnects the pipeline. The first electronic expansion valve 61 connects the pipeline and functions as a throttle, the second electronic expansion valve 62 disconnects the pipeline, the third electronic expansion valve 63 disconnects the pipeline, and the fourth electronic expansion valve 64 disconnects the pipeline. The parallel switch valve 58 connects the pipeline, and the switch valve 57 disconnects the series branch 10g.

[0222] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the in-vehicle condenser 120, the third on-off valve 53, the fifth on-off valve 55, the out-of-vehicle condenser 130, the fourth one-way valve 44, the second one-way valve 42 to the first branch, the working medium flowing to the first branch passes through the first electronic expansion valve 61, the second sensor 32, the first heat exchange unit 21, the first sensor 31, the parallel switch valve 58, the second on-off valve 52, the fifth one-way valve 45, and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0223] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11, flows to the in-vehicle condenser 120 through the third flow channel, and the in-vehicle condenser 120 only plays a role of pipeline. The working medium continues to flow to the out-vehicle condenser 130, is liquefied and releases heat at the out-vehicle condenser 130, and then flows to the first heat exchange unit 21 after being throttled and depressurized by the first electronic expansion valve 61. The working medium is vaporized by absorbing heat at the first heat exchange unit 21, and becomes low-temperature and low-pressure gaseous working medium, which flows into the inlet of the compressor 11, so as to realize the battery refrigeration by the first heat exchange plate.

[0224] The third embodiment is a working condition of only battery cooling, and the first heat exchange unit 21 and the second heat exchange unit 22 work in parallel.

[0225] In the working condition of only battery cooling, the working medium flows in the working medium circuit formed by the compressor 11, the in-vehicle condenser 120, the out-vehicle condenser 130 and the battery heat exchange module. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 connects the first exhaust flow channel 10c, the third on-off valve 53 connects the third flow channel, the fourth on-off valve 54 disconnects the bypass flow path 10f, the fifth on-off valve 55 connects the pipeline, and the sixth on-off valve 56 disconnects the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 connect the pipeline and play a throttling role, the third electronic expansion valve 63 disconnects the pipeline, and the fourth electronic expansion valve 64 disconnects the pipeline. The parallel switch valve 58 connects the pipeline, and the switch valve 57 disconnects the series branch 10g.

[0226] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the in-vehicle condenser 120, the third on-off valve 53, the fifth on-off valve 55, the out-vehicle condenser 130, the fourth one-way valve 44, the second one-way valve 42 to the first branch and the second branch. The working medium flowing to the first branch passes through the first electronic expansion valve 61, the second sensor 32, the first heat exchange unit 21, the first sensor 31 and the parallel switch valve 58, the working medium flowing to the second branch passes through the second electronic expansion valve 62, the fourth sensor 34, the second heat exchange unit 22 and the third sensor 33, and then flows out of the second branch. After mixing with the working medium flowing out of the first branch, the working medium passes through the second on-off valve 52, the fifth one-way valve 45 and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0227] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11, flows to the in-vehicle condenser 120 through the third flow channel, and continues to flow to the out-vehicle condenser 130. The working medium is liquefied and releases heat at the out-vehicle condenser 130. Subsequently, the working medium flows to the first heat exchange unit 21 and the second heat exchange unit 22 after being throttled and depressurized by the first electronic expansion valve 61. The working medium is vaporized by absorbing heat at the first heat exchange unit 21 and the second heat exchange unit 22, and becomes low-temperature and low-pressure gaseous working medium that flows into the inlet of the compressor 11, thereby realizing battery refrigeration by the first heat exchange plate and the second heat exchange plate.

[0228] The fourth embodiment is a working condition of only battery cooling, and the first heat exchange unit 21 and the second heat exchange unit 22 work in series.

[0229] In the working condition of only battery cooling, the working medium flows in the working medium circuit formed by the compressor 11, the in-vehicle condenser 120, the out-vehicle condenser 130, and the battery heat exchange module. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 connects the first exhaust flow channel 10c, the third on-off valve 53 connects the third flow channel, the fourth on-off valve 54 disconnects the bypass flow channel 10f, the fifth on-off valve 55 connects the pipeline, and the sixth on-off valve 56 disconnects the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 connect the pipeline and function as throttling, the third electronic expansion valve 63 disconnects the pipeline, and the fourth electronic expansion valve 64 disconnects the pipeline. The parallel switch valve 58 disconnects the pipeline, and the switch valve 57 connects the series branch 10g.

[0230] The circulation path of the working medium is: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the in-vehicle condenser 120, the third on-off valve 53, the fifth on-off valve 55, the out-vehicle condenser 130, the fourth one-way valve 44, the second one-way valve 42, the first electronic expansion valve 61, the second sensor 32, the first heat exchange unit 21, the first sensor 31, the switch valve 57, the fourth sensor 34, the second heat exchange unit 22, the third sensor 33, the second on-off valve 52, the fifth one-way valve 45, and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0231] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11, flows to the in-vehicle condenser 120 through the third flow channel, and continues to flow to the out-vehicle condenser 130. The working medium is liquefied and releases heat at the out-vehicle condenser 130. Subsequently, the working medium flows to the first heat exchange unit 21 and the second heat exchange unit 22 after being throttled and depressurized by the first electronic expansion valve 61. The working medium is vaporized by absorbing heat at the first heat exchange unit 21 and the second heat exchange unit 22, and becomes low-temperature and low-pressure gaseous working medium that flows into the inlet of the compressor 11, thereby realizing battery refrigeration by the first heat exchange plate and the second heat exchange plate.

[0232] Example five is a condition of passenger cabin refrigeration and battery cooling, and example five is actually any one of example one and example two to example four running at the same time.

[0233] Example six is a condition of only passenger cabin heating, and the outside environment is high, and the outside condenser 130 can absorb heat from the outside environment.

[0234] In the condition of only passenger cabin heating, the working medium flows in the working medium circuit formed by the compressor 11, the indoor condenser 120 and the outdoor condenser 130. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 disconnects the first exhaust flow channel 10c, the third on-off valve 53 disconnects the third flow channel, the fourth on-off valve 54 conducts the bypass flow path 10f, the fifth on-off valve 55 conducts the pipeline, and the sixth on-off valve 56 disconnects the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 disconnect the pipeline, the third electronic expansion valve 63 disconnects the pipeline, and the fourth electronic expansion valve 64 conducts the pipeline, which plays a throttling role.

[0235] The circulation path of the working medium is: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the indoor condenser 120, the fourth electronic expansion valve 64, the fifth on-off valve 55, the outdoor condenser 130, the fourth one-way valve 44, the fourth on-off valve 54, the fifth sensor 35 and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0236] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11 and flows to the indoor condenser 120 through the third exhaust flow channel 10e. The working medium is liquefied and releases heat at the indoor condenser 120, and then flows to the outdoor condenser 130 after being throttled and decompressed by the fourth electronic expansion valve 64. The working medium exchanges heat with the outdoor environment at the outdoor condenser 130, absorbs heat and vaporizes, and finally becomes low-temperature and low-pressure gaseous working medium, which flows into the compressor 11 from the inlet of the compressor 11 along the bypass flow path 10f, so as to realize heating in the passenger cabin by the indoor condenser 120.

[0237] Example seven is a condition of only passenger cabin heating, and the outside environment is low, and the outdoor condenser 130 cannot absorb heat from the outside environment.

[0238] In the case of only passenger cabin heating, the working medium flows in the working medium circuit formed by the compressor 11 and the in-vehicle condenser 120. At this time, the first on-off valve 51 disconnects the second exhaust flow channel 10d, the second on-off valve 52 disconnects the first exhaust flow channel 10c, the third on-off valve 53 disconnects the third flow channel, the fourth on-off valve 54 conducts the bypass flow path 10f, the fifth on-off valve 55 disconnects the pipeline, and the sixth on-off valve 56 conducts the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 disconnect the pipeline, the third electronic expansion valve 63 disconnects the pipeline, the fourth electronic expansion valve 64 conducts the pipeline, and functions as a throttling device.

[0239] The circulation path of the working medium is: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the in-vehicle condenser 120, the fourth electronic expansion valve 64, the sixth on-off valve 56, the fourth on-off valve 54, the fifth sensor 35, and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0240] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11 and flows to the in-vehicle condenser 120 through the third exhaust flow channel 10e. The working medium is liquefied and releases heat at the in-vehicle condenser 120, and then flows to the bypass flow path 10f after being throttled and depressurized by the fourth electronic expansion valve 64, and flows into the intake port of the compressor 11, thereby realizing heating of the in-vehicle condenser 120 into the passenger cabin.

[0241] Embodiment eight is the case of only battery heating when the ambient temperature is high, and the first heat exchange unit 21 and the second heat exchange unit 22 work independently. Among them, the first heat exchange unit 21 works, and the second heat exchange unit 22 does not work.

[0242] In the case of only the battery heating module, the working medium flows in the working medium circuit formed by the compressor 11, the first heat exchange unit 21, and the evaporator 140. At this time, the first on-off valve 51 conducts the second exhaust flow channel 10d, the second on-off valve 52 disconnects the first exhaust flow channel 10c, the third on-off valve 53 disconnects the third flow channel, the fourth on-off valve 54 disconnects the bypass flow path 10f, the fifth on-off valve 55 disconnects the pipeline, and the sixth on-off valve 56 conducts the pipeline. The first electronic expansion valve 61 conducts the pipeline and functions as a throttling device, the second electronic expansion valve 62 disconnects the pipeline, the third electronic expansion valve 63 conducts the pipeline and functions as a throttling device, and the fourth electronic expansion valve 64 disconnects the pipeline. The parallel switch valve 58 conducts the pipeline, and the switch valve 57 disconnects the series branch 10g.

[0243] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the first on-off valve 51 to the first branch, the working medium flowing to the first branch passes through the first sensor 31, the first heat exchange unit 21, the second sensor 32, the first electronic expansion valve 61, flows out of the first branch, passes through the first check valve 41, the sixth on-off valve 56, the third electronic expansion valve 63, the evaporator 140, the third check valve 43, the fifth sensor 35 and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0244] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11 and flows to the battery heat exchange module through the second exhaust flow channel 10d, the working medium is liquefied and releases heat at the first heat exchange unit 21, then the working medium flows to the evaporator 140 after throttling and pressure reduction by the first electronic expansion valve 61 and the third electronic expansion valve 63, the working medium absorbs heat and vaporizes at the evaporator 140, and finally becomes low-temperature and low-pressure gaseous working medium flowing into the inlet of the compressor 11, thereby realizing heating of the battery by the first heat exchange plate and the second heat exchange plate.

[0245] Embodiment nine is a working condition of only battery heating when the ambient temperature is high, and the first heat exchange unit 21 and the second heat exchange unit 22 work in parallel.

[0246] In the working condition of only the battery heating module, the working medium flows in the working medium circuit formed by the compressor 11, the battery heat exchange module and the evaporator 140. At this time, the first on-off valve 51 is conducted, the second on-off valve 52 is cut off, the third on-off valve 53 is cut off, the fourth on-off valve 54 is cut off, the fifth on-off valve 55 is cut off, and the sixth on-off valve 56 is conducted. The first electronic expansion valve 61 and the second electronic expansion valve 62 are conducted to play a throttling role, the third electronic expansion valve 63 is conducted to play a throttling role, and the fourth electronic expansion valve 64 is cut off. The parallel switch valve 58 is conducted, and the switch valve 57 is cut off.

[0247] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the first on-off valve 51 to the first branch and the second branch, the working medium flowing to the first branch passes through the first sensor 31, the first heat exchange unit 21, the second sensor 32, the first electronic expansion valve 61, the working medium flowing to the second branch passes through the parallel switch valve 58, the third sensor 33, the second heat exchange unit 22, the fourth sensor 34, the second electronic expansion valve 62, flows out of the second branch, mixes with the working medium flowing out of the first branch, passes through the first check valve 41, the sixth on-off valve 56, the third electronic expansion valve 63, the evaporator 140, the third check valve 43, the fifth sensor 35 and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0248] The high-temperature and high-pressure gaseous working medium flows out of the discharge port of the compressor 11 and flows to the battery heat exchange module through the second discharge flow channel 10d. The working medium is liquefied and releases heat at the first heat exchange unit 21 and the second heat exchange unit 22, respectively. Then, the working medium flows to the evaporator 140 after being throttled and depressurized by the first electronic expansion valve 61, the second electronic expansion valve 62 and the third electronic expansion valve 63. The working medium is heated and vaporized at the evaporator 140, and finally becomes low-temperature and low-pressure gaseous working medium that flows into the suction port of the compressor 11, so as to realize the heating of the battery by the first heat exchange plate and the second heat exchange plate.

[0249] The tenth embodiment is a working condition of only battery heating when the ambient temperature is high, and the first heat exchange unit 21 and the second heat exchange unit 22 work in series.

[0250] In the working condition of only the battery heating module, the working medium flows in the working medium circuit formed by the compressor 11, the battery heat exchange module and the evaporator 140. At this time, the first on-off valve 51 is conducted to the second discharge flow channel 10d, the second on-off valve 52 is cut off to the first discharge flow channel 10c, the third on-off valve 53 is cut off to the third flow channel, the fourth on-off valve 54 is cut off to the bypass flow channel 10f, the fifth on-off valve 55 is cut off to the pipeline, and the sixth on-off valve 56 is conducted to the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 are conducted to the pipeline and play a throttling role, the third electronic expansion valve 63 is conducted to the pipeline and plays a throttling role, and the fourth electronic expansion valve 64 is cut off. The parallel switch valve 58 is cut off to the pipeline, and the switch valve 57 is conducted to the series branch 10g.

[0251] The circulation path of the working medium is: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the first on-off valve 51, the parallel switch valve 58, the third sensor 33, the second heat exchange unit 22, the fourth sensor 34, the first sensor 31, the first heat exchange unit 21, the second sensor 32, the first electronic expansion valve 61, the first check valve 41, the sixth on-off valve 56, the third electronic expansion valve 63, the evaporator 140, the third check valve 43, the fifth sensor 35 and the gas-liquid separator 15, and finally flows back to the compressor 11.

[0252] The high-temperature and high-pressure gaseous working medium flows out of the discharge port of the compressor 11 and flows to the battery heat exchange module through the second discharge flow channel 10d. The working medium is liquefied and releases heat at the first heat exchange unit 21 and the second heat exchange unit 22, respectively. Then, the working medium flows to the evaporator 140 after being throttled and depressurized by the first electronic expansion valve 61 and the third electronic expansion valve 63. The working medium is heated and vaporized at the evaporator 140, and finally becomes low-temperature and low-pressure gaseous working medium that flows into the suction port of the compressor 11, so as to realize the heating of the battery by the first heat exchange plate and the second heat exchange plate.

[0253] The eleventh embodiment is a working condition of only battery heating when the ambient temperature is low, and the first heat exchange unit 21 and the second heat exchange unit 22 work in parallel.

[0254] In the working condition of only battery heating module, the working medium flows in the working medium circuit formed by the compressor 11, the battery heat exchange module and the evaporator 140. At this time, the first on-off valve 51 is connected to the second exhaust flow channel 10d, the second on-off valve 52 is disconnected from the first exhaust flow channel 10c, the third on-off valve 53 is disconnected from the third flow channel, the fourth on-off valve 54 is connected to the bypass flow channel 10f, the fifth on-off valve 55 is disconnected from the pipeline, and the sixth on-off valve 56 is connected to the pipeline. The first electronic expansion valve 61 and the second electronic expansion valve 62 are connected to the pipeline to throttle, the third electronic expansion valve 63 is disconnected from the pipeline, and the fourth electronic expansion valve 64 is disconnected. The parallel switch valve 58 is connected to the pipeline, and the switch valve 57 is disconnected from the series branch 10g.

[0255] The circulation path of the working medium is as follows: from the compressor 11, through the first pressure sensor 81, the first temperature sensor 82, the first on-off valve 51 to the first branch and the second branch, the working medium flowing to the first branch passes through the first sensor 31, the first heat exchange unit 21, the second sensor 32, and the first electronic expansion valve 61 to flow out of the first branch, the working medium flowing to the second branch passes through the parallel switch valve 58, the third sensor 33, the second heat exchange unit 22, the fourth sensor 34, and the second electronic expansion valve 62 to flow out of the second branch, and then mixes with the working medium flowing out of the first branch, and finally flows back to the compressor 11 through the first check valve 41, the sixth on-off valve 56, the fourth on-off valve 54, the fifth sensor 35, and the gas-liquid separator 15.

[0256] The high-temperature and high-pressure gaseous working medium flows out of the exhaust port of the compressor 11 and flows to the battery heat exchange module through the second exhaust flow channel 10d. The working medium is liquefied and releases heat at the first heat exchange unit 21 and the second heat exchange unit 22, respectively. Then, the working medium flows to the compressor 11 after being throttled and depressurized by the first electronic expansion valve 61, the second electronic expansion valve 62, and the third electronic expansion valve 63. When the ambient temperature is low, the working medium naturally exchanges heat during the flow process, and finally becomes low-temperature and low-pressure gaseous working medium flowing into the inlet of the compressor 11, thereby realizing the heating of the battery by the first heat exchange plate and the second heat exchange plate.

[0257] The twelfth embodiment is a working condition in which the ambient temperature is high and the passenger compartment and the battery pack are heated simultaneously. The twelfth embodiment is actually any one of the sixth embodiment and the eighth to tenth embodiments running simultaneously.

[0258] The above several embodiments are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the heat management system 100 can only operate as shown in the embodiments under certain working conditions, and therefore cannot be understood as a limitation of the present application.

[0259] In some embodiments of the present application, the heat pipe system further comprises a power thermal management subsystem 200, the power thermal management subsystem 200 comprising a fourth heat exchanger 71 and a coolant circulation system, the fourth heat exchanger 71 comprising a first flow channel and a second flow channel, the first flow channel being connected to the coolant circulation system, and the second flow channel being in communication with at least one of the first dry line 10a and the second dry line 10b.

[0260] The thermal management system 100 further comprises an air conditioning circulation loop 101, the air conditioning circulation loop 101 further comprising a heating branch, one of the first dry line 10a and the second dry line 10b being in communication with the second flow channel, and the other of the first dry line 10a and the second dry line 10b being connected in parallel to the heating branch, and a controller being configured to control heat exchange of at least one of the heating branch, the first dry line 10a and the second dry line 10b.

[0261] The coolant flows in the first flow channel, and the working medium flows in the second flow channel, the first flow channel and the second flow channel being located in the fourth heat exchanger 71 together, and the first flow channel and the second flow channel being capable of exchanging heat with each other. When the temperature of the coolant flowing in the second flow channel is higher than the temperature of the working medium flowing in the first flow channel, the working medium absorbs heat when flowing through the fourth heat exchanger 71; and when the temperature of the coolant flowing in the second flow channel is lower than the temperature of the working medium flowing in the first flow channel, the working medium releases heat when flowing through the fourth heat exchanger 71.

[0262] The coolant circulation system is capable of exchanging heat between the heat generated by the power thermal management subsystem 200 and the working medium, so as to heat the working medium by using the heat generated by the power thermal management subsystem 200, or to cool the working medium, thereby assisting the battery heat exchange module in heat exchange with the battery.

[0263] In some embodiments of the present application, as shown in Figure 2 the power thermal management subsystem 200 comprises at least one of a high-pressure thermal management subsystem 201 and an engine thermal management subsystem 202.

[0264] The high-pressure thermal management subsystem 201 is capable of exchanging heat with the air conditioning circulation loop 101, or the engine thermal management subsystem 202 is capable of exchanging heat with the air conditioning circulation loop 101, or both the high-pressure thermal management subsystem 201 and the engine thermal management subsystem 202 are capable of exchanging heat with the air conditioning circulation loop 101.

[0265] In some specific embodiments of the present application, the heat pipe system further comprises the high-pressure thermal management subsystem 201, the high-pressure thermal management subsystem 201 comprising the fourth heat exchanger 71 and the coolant circulation system, the fourth heat exchanger 71 comprising the first flow channel and the second flow channel, the first flow channel being connected to the coolant circulation system, and one end of the second flow channel being selectively in communication with the second end and the first heat exchanger 12, and the other end of the second flow channel being connected to the fourth heat exchanger 71.

[0266] In some embodiments of the present application, the high-pressure thermal management subsystem 201 further comprises a charge distribution / motor assembly 72 and a first radiator 73, the charge distribution / motor assembly 72 is in heat exchange with the motor electronic control of the vehicle, and the charge distribution / motor assembly 72 is connected between the cooling liquid circulation system and the first radiator 73. The first radiator 73 is adapted to exchange heat with the environment outside the vehicle.

[0267] In some embodiments of the present application, the high-pressure thermal management subsystem 201 further comprises a switching valve group 74, the switching valve group 74 is connected with both ends of the circulation loop, the charge distribution / motor assembly 72 and the first radiator 73 respectively, and the switching valve group 74 is actuated to switch between different working conditions of the high-pressure thermal management subsystem 201. Specifically, the switching valve group 74 is a three-way valve.

[0268] The switching valve group 74 can control the flow direction of the cooling liquid, can heat the working medium generated by the motor electronic control of the vehicle, or can dissipate the heat generated by the motor electronic control of the vehicle to the outside of the vehicle through the first radiator 73.

[0269] In some embodiments of the present application, the high-pressure thermal management system 100 further comprises a water pump 75, the water pump 75 is arranged between the charge distribution / motor assembly 72 and the fourth heat exchanger 71, and the water pump 75 is configured to pump the cooling liquid from the charge distribution / motor assembly 72 to the fourth heat exchanger 71.

[0270] The high-pressure thermal management subsystem 201 has a first working condition, in which the charge distribution / motor assembly 72 and the second flow channel form a first loop. The cooling liquid flowing out of the charge distribution / motor assembly 72 flows to the fourth heat exchanger 71 under the action of the water pump 75, and the cooling liquid exchanges heat with the working medium in the first flow channel of the fourth heat exchanger 71, and then flows back to the charge distribution / motor assembly 72 to exchange heat with the motor electronic control of the vehicle.

[0271] When the working medium circulation loop has a heat absorption demand and the high-pressure thermal management subsystem 201 has no heat dissipation demand, the high-pressure thermal management subsystem 201 can operate in the first working condition. The high-temperature cooling liquid flowing out of the charge distribution / motor assembly 72 flows into the second flow channel and exchanges heat with the low-temperature working medium flowing through the first flow channel, so as to transfer the heat generated by the motor electronic control of the vehicle to the working medium circulation loop. The heat generated by the motor electronic control of the vehicle is effectively utilized, which improves the heating capacity of the thermal management system 100 and reduces the energy consumption of the thermal management system 100.

[0272] The high-pressure thermal management subsystem 201 also has a second working condition, in which the charging and power distribution / motor assembly 72, the first radiator 73, and the second flow channel form a second loop. The cooling liquid flowing out of the charging and power distribution / motor assembly 72 flows to the fourth heat exchanger 71 under the action of the water pump 75, and after the cooling liquid exchanges heat with the working medium in the first flow channel in the second flow channel of the fourth heat exchanger 71, the cooling liquid flows to the first radiator 73, and after the cooling liquid exchanges heat in the first radiator 73, the cooling liquid flows back to the charging and power distribution / motor assembly 72 to exchange heat with the motor controller of the vehicle.

[0273] When the working medium circulating return has a heat absorption requirement, the high-pressure thermal management subsystem 201 has a heat dissipation requirement, and the heat dissipation requirement of the high-pressure thermal management subsystem 201 is higher than the heat absorption requirement of the working medium circulating return, the high-pressure thermal management subsystem 201 can operate in the second working condition. The high-temperature cooling liquid flowing out of the charging and power distribution / motor assembly 72 flows into the second flow channel and exchanges heat with the low-temperature working medium flowing through the first flow channel, and the heat generated by the motor controller of the vehicle is transferred to the working medium circulating return, and the temperature of the cooling liquid is still relatively high after one heat exchange, so the cooling liquid flows to the first radiator 73 to exchange heat with the external environment for the second time, and the heat generated by the motor controller of the vehicle is effectively utilized, which improves the heating capacity of the thermal management system 100 and also reduces the energy consumption of the thermal management system 100.

[0274] In addition, when the working medium circulating return has a heat absorption requirement, the heat generated by the high-pressure thermal management subsystem 201 is insufficient, and the temperature of the cooling liquid is lower than the temperature of the external environment, the high-pressure thermal management subsystem 201 can also operate in the second working condition. The cooling liquid exchanges heat with the external environment in the first radiator 73 to increase the temperature of the cooling liquid, and the cooling liquid flows to the charging and power distribution / motor assembly 72 and the fourth heat exchanger 71 through the circulating loop to exchange heat with the low-temperature working medium flowing through the first flow channel, and the heat of the external environment is transferred to the working medium circulating return and the high-pressure thermal management subsystem 201. The heat can be effectively utilized, which improves the heating capacity of the thermal management system 100 and also reduces the energy consumption of the thermal management system 100.

[0275] The high-pressure thermal management subsystem 201 also includes a mixed working condition, in which the first loop and the second loop circulate at the same time. The cooling liquid flowing out of the charging and power distribution / motor assembly 72 flows to the third heat exchanger 14 under the action of the water pump 75, and after the cooling liquid exchanges heat with the working medium in the first flow channel in the second flow channel of the third heat exchanger 14, part of the cooling liquid directly flows back to the charging and power distribution / motor assembly 72 to exchange heat with the motor controller of the vehicle, and the other part of the cooling liquid flows to the first radiator 73, and after the cooling liquid exchanges heat in the first radiator 73, the cooling liquid flows back to the charging and power distribution / motor assembly 72 to exchange heat with the motor controller of the vehicle.

[0276] When the heat absorption requirement of the working fluid circulation backflow is higher than the heat dissipation requirement of the high-pressure thermal management subsystem 201, the high-pressure thermal management subsystem 201 can operate in a mixed working condition.

[0277] The high-temperature coolant flowing out of the charging and power distribution / motor assembly 72 flows into the second flow channel, exchanges heat with the low-temperature working fluid flowing through the first flow channel, and transfers the heat generated by the motor electronic control of the vehicle to the working fluid circulation backflow. The coolant after heat exchange partially flows back to the charging and power distribution / motor assembly 72, and the other part of the coolant flows to the first radiator 73 and exchanges heat with the external environment for the second time, and is dissipated. The heat generated by the motor electronic control of the vehicle is effectively utilized, which improves the heating capacity of the thermal management system 100 and reduces the energy consumption of the thermal management system 100.

[0278] The high-pressure thermal management subsystem 201 has a first working condition, a second working condition and a mixed working condition, and the coolant in the circulation backflow in the first working condition, the second working condition and the mixed working condition heats the working fluid in the working fluid circulation backflow. Therefore, the thermal management system 100 can work in different working conditions and cooperate with different working conditions of the high-pressure thermal management subsystem 201.

[0279] For example, in the working condition of only heating the passenger compartment, the first working condition, the second working condition and the mixed working condition of the high-pressure thermal management subsystem 201 can be mutually coordinated.

[0280] In some embodiments of the present application, the thermal management system further comprises an engine thermal management subsystem 202, which comprises a fifth heat exchanger 76 and a coolant circulation system. The fifth heat exchanger 76 comprises a third flow channel and a fourth flow channel. The third flow channel is connected with the coolant circulation system. One end of the fourth flow channel selectively communicates with the second end b and the first heat exchanger 124, and the other end of the fourth flow channel is connected with the third heat exchanger 1433.

[0281] In some embodiments of the present application, the engine thermal management subsystem 202 further comprises an engine assembly 77 and a second radiator 78. The engine assembly 77 exchanges heat with the engine of the vehicle, and the engine assembly 77 is connected between the coolant circulation system and the second radiator 78. The second radiator 78 is adapted to exchange heat with the external environment.

[0282] The vehicle 1000 according to the embodiments of the present application comprises the thermal management system 100 of any one of the above.

[0283] According to the vehicle 1000 of the embodiments of the present application, by arranging the above thermal management system 100, the frequency of maintenance and replacement of the battery can be reduced, the charging efficiency and the use convenience of the vehicle are improved, and the rationalization layout of the vehicle is facilitated.

[0284] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0285] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized in that, include: A battery thermal management subsystem includes a first main circuit (10a) and a second main circuit (10b). The first main circuit (10a) is used for heat exchange with a first region of the battery, and the second main circuit (10b) is used for heat exchange with a second region of the battery. The first region and the second region are different. At least one of the first main circuit (10a) and the second main circuit (10b) exchanges heat with the battery. A heat exchange unit is provided in the battery thermal management subsystem and the power thermal management subsystem (200). The battery thermal management subsystem and the power thermal management subsystem exchange heat through the heat exchange unit. The power thermal management subsystem is used to dissipate heat from the electronic module. The first trunk line (10a) is provided with a first heat exchange unit (21), a first flow regulating element (61), and a second flow regulating element (65). The first flow regulating element (61) is connected to the first end of the first heat exchange unit (21), and the second flow regulating element (65) is connected to the second end of the first heat exchange unit (21). The first heat exchange unit (21) is used to exchange heat with the first area. The second trunk line (10b) is provided with a second heat exchange unit (22), a third flow regulating element (62) and a fourth flow regulating element (66). The third flow regulating element (62) is connected to the first end of the second heat exchange unit (22), and the fourth flow regulating element (66) is connected to the second end of the second heat exchange unit (22). The second heat exchange unit (22) is used to exchange heat with the second region. When the temperature of the first region is higher than that of the second region and the temperature difference is greater than or equal to the first threshold, and a cooling command is received, the opening degree of the first flow regulating element (61) is adjusted according to the superheat ΔTA at the second end of the first heat exchange unit (21), and the opening degree of the third flow regulating element (62) is reduced every set time.

2. The thermal management system according to claim 1, characterized in that, The temperature of the first region is higher than that of the second region; or the temperature rise rate of the first region is higher than that of the second region; or the first region is an electrode region of the battery.

3. The thermal management system according to claim 1, characterized in that, The heat exchange unit includes at least one heat exchanger (70), each heat exchanger (70) includes a first flow channel and a second flow channel that exchange heat with each other, the first flow channel is disposed in the power thermal management subsystem, and the second flow channel is connected to at least one of the first main line (10a) and the second main line (10b).

4. The thermal management system according to claim 1, characterized in that, The thermal management system further includes a compressor (11) and an external condenser (130). The exhaust port of the compressor is connected to the first end of the external condenser. The second end of the external condenser is connected to the air inlet of the compressor via the first main line (10a). The second end of the external condenser is connected to the air inlet of the compressor via the second main line (10b). The exhaust port of the compressor is connected to the air inlet of the compressor via the first main line (10a). The exhaust port of the compressor is connected to the air inlet of the compressor via the second main line (10b).

5. The thermal management system according to claim 1, characterized in that, The opening degree of at least one of the first flow regulating element (61), the second flow regulating element (65), the third flow regulating element (62) and the fourth flow regulating element (66) is different so that the heat exchange of the first main line (10a) and the second main line (10b) is different.

6. The thermal management system according to claim 1, characterized in that, When △TA < △TC, decrease the opening of the first flow regulating element (61); when △TA > △TD, increase the opening of the first flow regulating element (61). When △TD≤△TA≤△TC, the first flow regulating element (61) maintains the current opening.

7. The thermal management system according to claim 1, characterized in that, When the temperature of the first region is higher than that of the second region and the temperature difference is greater than or equal to the first threshold, and a cooling command is received, the opening degree of the second flow regulating element (65) and the fourth flow regulating element (66) is at its maximum.

8. The thermal management system according to claim 5, characterized in that, When the temperature of the first region is higher than the temperature of the second region and the temperature difference is greater than or equal to the second threshold, and a heating command is received, the opening degree of the fourth flow regulating element (66) is at its maximum, and the opening degree of the second flow regulating element (65) is reduced every set time.

9. The thermal management system according to claim 8, characterized in that, When the temperature of the first region is higher than that of the second region and the temperature difference is greater than or equal to the second threshold, and a heating command is received, the opening degree of the first flow regulating element (61) is adjusted according to the subcooling degree △T1 at the first end of the first heat exchange unit (21), and the opening degree of the third flow regulating element (62) is adjusted according to the subcooling degree △T2 at the first end of the second heat exchange unit (22).

10. The thermal management system according to claim 9, characterized in that, When △T1 < △T3, decrease the opening of the first flow regulating element (61); when △TA > △T4, increase the opening of the first flow regulating element (61). When △T4≤△TA≤△T3, the first flow regulating element (61) maintains the current opening degree; When △T2 < △T5, decrease the opening of the third flow regulating element (62); when △T2 > △T6, increase the opening of the third flow regulating element (62). When △T6≤△T2≤△T5, the third flow regulating element (62) maintains the current opening.

11. The thermal management system according to claim 1, characterized in that, The power thermal management subsystem (200) includes at least one of a high-pressure thermal management subsystem (201) and an engine thermal management subsystem (202), wherein the high-pressure thermal management subsystem (201) is used for heat exchange of the motor and / or electronic control, and the engine thermal management subsystem (202) is used for heat exchange of the engine.

12. The thermal management system according to claim 11, characterized in that, The high-pressure thermal management subsystem includes a first radiator (73), which is connected to the heat exchange unit to form a first coolant circuit; and / or The engine thermal management subsystem includes a second radiator (78), which is connected to the heat exchange unit to form a second coolant circuit.

13. The thermal management system according to claim 1, characterized in that, It also includes an air conditioning subsystem, which includes a compressor, an in-vehicle condenser, an out-of-vehicle condenser, and an evaporator. The exhaust port of the compressor is connected to the first end of the in-vehicle condenser, the second end of the in-vehicle condenser is connected to the first end of the out-of-vehicle condenser, and the two ends of the evaporator are connected to the second end of the out-of-vehicle condenser and the air inlet of the compressor, respectively. The first trunk line (10a) and the second trunk line (10b) are connected in parallel, and the first trunk line (10a) is connected between the second end of the external condenser and the air inlet.

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

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