Thermal management system and vehicle

Abstract

The utility model discloses a thermal management system and a vehicle. The thermal management system comprises an air-conditioning system and a thermal management system, the first control valve selectively communicates with one or more of the high-pressure heat exchange loop, the battery heat exchange loop, the radiator loop and the heat exchanger loop, and the air conditioning system exchanges heat with the heat exchanger loop and the heating loop; one valve port of the second control valve is communicated with the first control valve, the other valve port of the second control valve is communicated with one end of the battery heat exchange loop, and the other two valve ports of the second control valve are communicated with the two ends of the heating loop. Wherein the first control valve and the second control valve are adopted to achieve communication of all loops, and the number of parts is reduced; the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of a heat pump or a heating loop is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle thermal management technical field especially is related to a thermal management system and vehicle. BACKGROUND

[0002] With the rapid development of China's pure electric vehicle industry, the integration degree of the vehicle control system is higher and higher, the 800V high-voltage system is more efficient and charges faster, and the thermal management system is also progressing towards high efficiency and energy saving. The heat pump system has been popularized and applied, the motor waste heat is reasonably utilized, the battery cooling and heating mode is diversified, and finally the architecture of the thermal management system of each vehicle type presents complexity and diversification.

[0003] Due to different properties and design requirements, each system and part of the pure electric vehicle has a different optimal working temperature range, so external auxiliary means is needed to maintain each part in a suitable temperature range to ensure the normal, stable and efficient work of the parts and the comfort requirements of the passengers in the passenger compartment. In the pure electric vehicle, a large amount of heat is generated during the operation of the battery, and the performance and service life of the battery are closely related to the temperature, therefore, an efficient and intelligent thermal management architecture is crucial. SUMMARY

[0004] The utility model aims at at least solves one of prior art existing technical problems. For this reason, the utility model provides a kind of thermal management system, using first control valve and second control valve realize the intercommunication of each loop, reduce the quantity of parts;Reduce the flow resistance under each working mode, improve energy utilization rate, optimize the energy utilization efficiency of heat pump or heating loop.

[0005] The utility model further provides a kind of vehicle.

[0006] According to the thermal management system of the first aspect embodiment of the utility model, it comprises: air conditioning system;First control valve, the high-pressure heat exchange loop, battery heat exchange loop, radiator loop, heat exchanger loop are communicated on the first control valve, the first control valve selectively communicates one or more of the high-pressure heat exchange loop, the battery heat exchange loop, the radiator loop and the heat exchanger loop, and the air conditioning system exchanges heat with the heat exchanger loop and the heating loop;Second control valve, one valve port of the second control valve is communicated with the first control valve, another valve port is communicated with one end of the battery heat exchange loop, and the other two valve ports are communicated with two ends of the heating loop;The heating loop includes: condenser, one end of the condenser is communicated with the second control valve and the other end is communicated with one end of the radiator loop.

[0007] The heat management system according to the embodiment of the present application adopts the first control valve and the second control valve to realize the communication of each loop, reduces the number of parts, reduces the flow resistance under each working mode, improves the energy utilization rate, and optimizes the energy utilization efficiency of the heat pump or the heating loop.

[0008] According to some embodiments of the present application, the heat management system further comprises a multi-pass pipe, one end of the multi-pass pipe is in communication with one end of the battery heat exchange loop, another end of the multi-pass pipe is in communication with the first control valve, and still another end of the multi-pass pipe is in communication with the second control valve.

[0009] According to some embodiments of the present application, the heat management system further comprises a first branch, one end of the first branch is in communication with still another end of the multi-pass pipe, and the other end of the first branch is in communication with the second control valve.

[0010] According to some embodiments of the present application, the heating loop comprises a condenser, the condenser, the electric heater and the warm air core are connected in series with each other, and the air conditioning system comprises a compressor and an evaporator, the compressor, the evaporator and the condenser are connected in series with each other, and the heat exchanger and the evaporator are connected in parallel with each other and in series with the condenser.

[0011] According to some embodiments of the present application, the heat management system further comprises a second branch, one end of the second branch is in communication with one end of the radiator loop, and the other end of the second branch is in communication with one end of the condenser.

[0012] According to some embodiments of the present application, the heat exchanger loop comprises a heat exchanger, two ends of the heat exchanger are in communication with the first control valve respectively, and the air conditioning system is in communication with the heat exchanger, and the air conditioning system comprises a compressor and an evaporator, the compressor, the evaporator and the condenser are connected in series with each other, and the heat exchanger and the evaporator are connected in parallel with each other and in series with the condenser.

[0013] According to some embodiments of the present application, one end of the high-pressure heat exchange loop is in communication with the first control valve, and the other end of the high-pressure heat exchange loop is in communication with one end of the radiator loop, and the high-pressure heat exchange loop comprises a motor, an electric control and a first water pump, and the motor, the electric control and the first water pump are connected in series with each other.

[0014] According to some embodiments of the present application, the radiator loop comprises a radiator, one end of the radiator is in communication with the first control valve and the other end of the high-pressure heat exchange loop, and the other end of the radiator is in communication with the first control valve.

[0015] According to some embodiments of the present application, one end of the battery heat exchange circuit is communicated with the first control valve and the second control valve, and the other end of the battery heat exchange circuit is communicated with the first control valve; and the battery heat exchange circuit comprises: a battery pack and a second water pump, and the battery pack and the second water pump are connected in series.

[0016] According to the vehicle of the second aspect of the present application, the heat management system is adopted, the first control valve and the second control valve are adopted to realize the communication of each circuit, the number of parts is reduced, the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of the heat pump or the heating circuit is optimized.

[0017] The additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0019] Figure 1 is a structural schematic view of a heat management system according to an embodiment of the present application;

[0020] Figure 2 is a circuit schematic view of a first mode of a heat management system according to an embodiment of the present application;

[0021] Figure 3 is a circuit schematic view of a second mode of a heat management system according to an embodiment of the present application;

[0022] Figure 4 is a circuit schematic view of a third mode of a heat management system according to an embodiment of the present application;

[0023] Figure 5 is a circuit schematic view of a fourth mode of a heat management system according to an embodiment of the present application;

[0024] Figure 6 is a circuit schematic view of a fifth mode of a heat management system according to an embodiment of the present application;

[0025] Figure 7 is a circuit schematic view of a sixth mode of a heat management system according to an embodiment of the present application;

[0026] Figure 8 is a circuit schematic view of a seventh mode of a heat management system according to an embodiment of the present application.

[0027] REFERENCE NUMERALS:

[0028] 100. Thermal management system;

[0029] 10. High-pressure heat exchange circuit; 11. Motor; 12. Electrical control; 13. First water pump;

[0030] 20. Battery heat exchange circuit; 21. Battery pack; 22. Second water pump;

[0031] 30. Radiator circuit; 31. Radiator;

[0032] 40. Heat exchanger circuit; 41. Heat exchanger;

[0033] 50. Heating circuit; 51. Heater core; 52. Electric heater; 53. Third water pump;

[0034] 61. First control valve; 62. Second control valve; 63. Multi-port pipe; 64. First branch; 65. Second branch;

[0035] 71. Condenser; 72. Evaporator; 73. Compressor;

[0036] 81. Overflow tank; 82. Four-way pipe. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0038] The following is for reference. Figures 1-8 The description of the thermal management system 100 according to an embodiment of the present invention also proposes a vehicle including the above-described thermal management system 100.

[0039] A thermal management system 100 according to a first aspect embodiment of the present invention includes: an air conditioning system; a first control valve 61, which is connected to a high-pressure heat exchange circuit 10, a battery heat exchange circuit 20, a radiator circuit 30, and a heat exchanger circuit 40. The first control valve 61 selectively connects to one or more of the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40. The air conditioning system exchanges heat with the heat exchanger circuit 40 and the heating circuit 50.

[0040] For example, such as Figure 1 As shown, the first control valve 61 connects the radiator circuit 30 and the high-pressure heat exchange circuit 10, so that the radiator circuit 30 and the high-pressure heat exchange circuit 10 form a closed loop. The heat generated by the high-pressure device is carried to the radiator circuit 30 by the coolant, thereby realizing the heat dissipation of the high-pressure device.

[0041] like Figure 2 and Figure 8As shown, the first control valve 61 connects the two ends of the battery heat exchange circuit 20 and the two ends of the heat exchanger circuit 40, and connects the battery heat exchange circuit 20 and the heat exchanger circuit 40 in series. The heat exchanger 41 can absorb the heat of the battery pack 21, and the heat exchanger 41 transmits the heat to the air conditioning system, which is used for heating the passenger compartment through the condenser 71 or cooling through the radiator 31.

[0042] As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device. Figure 3 As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device.

[0043] Figure 4 As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device. Figure 5 As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device.

[0044] Figure 6 As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device. Figure 7 As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device.

[0045] As shown in FIG. 1, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, and the radiator circuit 30 are connected in series, and the coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, so that the heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, thereby achieving heat dissipation of the battery pack 21 and the high-pressure device.

[0046] Figure 3 ​​​As shown, the second control valve 62 can connect both ends of the heating circuit 50, and the coolant can flow in the heating circuit 50 to achieve heating of the crew cabin.

[0047] The heating circuit 50 includes a condenser 71, one end of which is connected to a second control valve 62 and the other end of which is connected to one end of the radiator circuit 30. That is, the second control valve 62 and the first control valve 61 can be connected in series with the radiator circuit 30 and the condenser 71, and the heat of the condenser 71 is dissipated to the outside through the radiator 31 of the radiator circuit 30, thereby cooling the condenser 71.

[0048] like Figure 2 As shown, the second control valve 62 can connect one port of the first control valve 61 and one end of the condenser 71. Simultaneously, the first control valve 61 connects the first end of the radiator circuit 30 to one port of the first control valve 61, and the other end of the condenser 71 is connected to one end of the radiator circuit 30. That is, the radiator circuit 30 and the condenser 71 are connected in series, and the heat from the condenser 71 can be dissipated to the outside through the radiator 31 of the radiator circuit 30. For example, the refrigerant can absorb heat from the battery pack 21 at the heat exchanger 41 or heat from the passenger compartment at the evaporator 72, and exchange heat with the coolant at the condenser 71, transferring this heat to the coolant. When the coolant flows through the radiator 31, it can be dissipated to the outside through the radiator 31, thus cooling the battery pack 21 or the passenger compartment.

[0049] Combination Figures 1-8 As shown, the first control valve 61 includes: a first valve port, a second valve port, a third valve port, a fourth valve port, a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port. The first valve port is... Figures 1-8 The "a" in the middle; the second valve port is... Figures 1-8 The "b" in the figure refers to the third valve port. Figures 1-8 The "c" in the text refers to the fourth valve port. Figures 1-8 The "d" in the figure refers to the fifth valve port. Figures 1-8 The "e" in the figure refers to the sixth valve port. Figures 1-8 The "f" in the text refers to the seventh valve port. Figures 1-8 The "g" in the middle; the eighth valve port is... Figures 1-8 The "h" in the text.

[0050] The second control valve 62 includes: a ninth valve port, a tenth valve port, an eleventh valve port, and a twelfth valve port, wherein the ninth valve port is... Figures 1-8 The "i" in the text refers to the tenth valve port. Figures 1-8 The "j" in the text; the eleventh valve port is... Figures 1-8 The "k" in the text; the twelfth valve port is... Figures 1-8 The "m" in it.

[0051] The first valve port communicates with the other end of the radiator circuit 30 and the one end of the high-pressure heat exchange circuit 10, the second valve port communicates with the other end of the battery heat exchange circuit 20, the third valve port communicates with the one end of the battery heat exchange circuit 20, the fourth valve port communicates with the one end of the heat exchanger circuit 40, the fifth valve port communicates with the other end of the heat exchanger circuit 40, the sixth valve port communicates with the ninth valve port, the seventh valve port communicates with the other end of the radiator 31, and the eighth valve port communicates with the other end of the high-pressure heat exchange circuit 10.

[0052] The tenth valve port communicates with the one end of the heating circuit 50, the eleventh valve port communicates with the other end of the heating circuit 50, and the twelfth valve port communicates with the one end of the battery heat exchange circuit 20.

[0053] The one end of the condenser 71 communicates with the tenth valve port, and the other end of the condenser 71 communicates with the one end of the radiator 31.

[0054] The thermal management system 100 further comprises a multi-pass pipe 63, one end of the multi-pass pipe 63 communicates with the one end of the battery heat exchange circuit 20, the other end of the multi-pass pipe 63 communicates with the first control valve 61, and the further end of the multi-pass pipe 63 communicates with the second control valve 62. Specifically, when the first control valve 61 communicates the second valve port and the sixth valve port, and the second control valve 62 communicates the ninth valve port and the tenth valve port and communicates the eleventh valve port and the twelfth valve port, the multi-pass pipe 63 communicates the one end of the battery heat exchange circuit 20 and the twelfth valve port, and the battery heat exchange circuit 20 and the heating circuit 50 are connected in series, and the heat of the condenser 71 can be used to heat the battery pack 21.

[0055] In combination Figures 1-7 As shown, the thermal management system 100 further comprises a first branch 64, one end of the first branch 64 communicates with the further end of the multi-pass pipe 63, and the other end of the first branch 64 communicates with the second control valve 62. Specifically, the first branch 64 is connected between the multi-pass pipe 63 and the twelfth valve port of the second control valve 62, and can communicate the one end of the battery heat exchange circuit 20 and the second control valve 62 to connect the battery heat exchange circuit 20 and the heating circuit 50 in series to achieve battery heating.

[0056] As shown in Figure 1 and Figure 2 The thermal management system 100 further comprises a second branch 65, one end of the second branch 65 communicates with the one end of the radiator circuit 30, and the other end of the second branch 65 communicates with the one end of the condenser 71. Specifically, the second branch 65 is connected between the one end of the radiator circuit 30 and the one end of the condenser 71, as shown in Figure 2As shown, the first control valve 61 can be communicated with the seventh valve port and the sixth valve port, and the second control valve 62 is communicated with the ninth valve port and the tenth valve port, so that the radiator 31 and the condenser 71 are connected in series, when the air conditioning system is in refrigeration, the refrigerant absorbs the heat of the passenger compartment at the evaporator 72, and exchanges heat with the cooling liquid at the condenser 71, and the heat is transmitted to the cooling liquid, and when the cooling liquid flows through the radiator 31, the heat can be dissipated to the outside through the radiator 31, so as to realize the cooling of the passenger compartment.

[0057] The heating circuit 50 comprises a condenser 71, a heating core 51 and an electric heater 52, the electric heater 52, the condenser 71 and the heating core 51 are connected in series, one end of the heating core 51 is communicated with the second control valve 62, and the other end is communicated with the other end of the condenser 71, one end of the electric heater 52 is communicated with the second control valve 62, and the other end is communicated with one end of the condenser 71. Specifically, the electric heater 52 is located between the tenth valve port and the condenser 71, the tenth valve port is communicated with the condenser 71, the eleventh valve port is communicated with one end of the heating core 51, and when the tenth valve port is communicated with the eleventh valve port, the heating core 51, the electric heater 52 and the condenser 71 are connected in series, the condenser 71 dissipates heat to the cooling liquid, and the cooling liquid flows through the heating core 51, so as to dissipate heat to the passenger compartment, and realize the heating of the passenger compartment.

[0058] The electric heater 52 is arranged between the heating core 51 and the condenser 71, and the cooling liquid in the heating circuit 50 can be heated by the electric heater 52, so that the electric heater 52 can play a role of heating when the air conditioning system is not running. The electric heater 52 can be a PTC heater.

[0059] According to some embodiments of the present application, the heat exchanger circuit 40 comprises a heat exchanger 41, both ends of the heat exchanger 41 are communicated with the first control valve 61, and the air conditioning system is communicated with the heat exchanger 41, the air conditioning system comprises a compressor 73 and an evaporator 72, the compressor 73, the evaporator 72 and the condenser 71 are connected in series; wherein the heat exchanger 41 and the evaporator 72 are connected in parallel and connected in series with the condenser 71. The refrigerant in the condenser 71 exchanges heat with the cooling liquid of the heat exchanger 41, so that the refrigerant can absorb the heat of the battery heat exchange circuit 20 or the high-pressure heat exchange circuit 10. The refrigerant flows out of the compressor 73, and releases heat at the condenser 71, and the refrigerant releases heat at the evaporator 72 after the heat is released, and finally returns to the compressor 73; when the passenger compartment is refrigerated, the refrigerant absorbs the heat of the passenger compartment at the evaporator 72, and the cooling liquid flowing through the condenser 71 releases heat to the heating circuit 50.

[0060] Further, the heat exchanger 41 is connected in parallel with the evaporator 72, so that the refrigerant can flow to the heat exchanger 41 after heat release at the condenser 71, and the heat absorbed by the refrigerant at the heat exchanger 41 can be used to transfer to the heating circuit 50 at the condenser 71 for heating the passenger compartment; or the refrigerant can flow to the evaporator 72 after heat release at the condenser 71 for heat absorption.

[0061] As shown in Figure 1 , one end of the high-pressure heat exchange circuit 10 is connected with the first control valve 61, and the other end of the high-pressure heat exchange circuit 10 is connected with one end of the radiator circuit 30. Specifically, the first control valve 61 can connect the high-pressure heat exchange circuit 10 with the radiator circuit 30, that is, the high-pressure heat exchange circuit 10 and the radiator circuit 30 are connected in series, and the coolant circulates between the high-pressure heat exchange circuit 10 and the radiator circuit 30, so that the heat of the high-pressure heat exchange circuit 10 can be dissipated to the outside through the radiator 31 of the radiator circuit 30.

[0062] In addition, the high-pressure heat exchange circuit 10 comprises a motor 11, an electric control 12 and a first water pump 13, which are connected in series. Specifically, the coolant flows in the high-pressure heat exchange circuit 10, and the coolant flows from the high-pressure heat exchange circuit 10 to the heat exchanger 41 under the drive of the first water pump 13, and then flows from the heat exchanger 41 to the high-pressure heat exchange circuit 10, realizing the circulation of the coolant. If the coolant flowing in the high-pressure heat exchange circuit 10 is higher than the temperature of the motor 11, the coolant heats the motor 11; if the coolant flowing in the high-pressure heat exchange circuit 10 is lower than the temperature of the motor 11, the coolant cools the motor 11.

[0063] As shown in Figures 1-5 , the radiator circuit 30 comprises a radiator 31, one end of the radiator 31 is connected with the first control valve 61 and the other end of the high-pressure heat exchange circuit 10, and the other end of the radiator 31 is connected with the first control valve 61. Specifically, when the coolant flows through the radiator 31, if the temperature of the coolant is higher than the ambient temperature, the coolant dissipates heat to the outside through the radiator 31 at the radiator 31; if the temperature of the coolant is lower than the ambient temperature, the coolant absorbs ambient heat at the radiator.

[0064] As shown in Figure 5 and Figure 7 , one end of the battery heat exchange circuit 20 is connected with the first control valve 61 and the second control valve 62, and the other end of the battery heat exchange circuit 20 is connected with the first control valve 61. Therefore, the first control valve 61 can connect the battery heat exchange circuit 20 with the high-pressure heat exchange circuit 10 to heat the battery pack 21 by using the waste heat of the motor 11; or the first control valve 61 can connect the battery heat exchange circuit 20 with the heat exchanger circuit 40 to cool the battery pack 21; or the first control valve 61 and the second control valve 62 can connect the battery heat exchange circuit 20 and the condenser 71 in series to heat the battery pack 21.

[0065] The battery heat exchange circuit 20 comprises a battery pack 21 and a second water pump 22 connected in series.

[0066] According to some embodiments of the present application, the heat management system 100 further comprises a water overflow tank 81 and a four-way pipe 82, the four-way pipe 82 is connected with the radiator circuit 30, the first control valve 61, the high-pressure heat exchange circuit 10 and the water overflow tank 81 respectively.

[0067] According to the vehicle of the second aspect of the present application, the heat management system 100 is provided.

[0068] The heat management system 100 of the present application will be described below. Figures 1-8 The heat management system 100 of the present application will be described below.

[0069] Referring to Fig. 1, the heat management system 100 of the present application comprises seven working modes. Figure 2

[0070] Circuit one: radiator 31→first water pump 13→electric control 12→motor 11→first control valve 61→radiator 31.

[0071] In the seventh valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected with the radiator circuit 30 and the high-pressure heat exchange circuit 10 in series, and the waste heat generated by the motor 11 and the electric control 12 is dissipated to the outside through the radiator 31, so as to realize the cooling of the motor 11 and the electric control 12.

[0072] Circuit two: second water pump 22→battery pack 21→first control valve 61→heat exchanger 41→first control valve 61→second water pump 22.

[0073] ​The second valve port and the fourth valve port are communicated, and the third valve port and the fifth valve port are communicated. That is, the battery heat exchange circuit 20 and the heat exchanger 41 are connected in series through the first control valve 61, that is, the heat exchanger 41, the battery pack 21 and the second water pump 22 are connected in series, so that the cooling liquid circulates between the heat exchanger 41 and the battery pack 21, the heat exchanger 41 can absorb the heat of the battery pack 21, and is heat exchanged with the air conditioning system, so that the cooling of the battery pack 21 can be realized.

[0074] Loop three: condenser 71→ electric heater 52→ second control valve 62→ first control valve 61→ radiator 31→ third water pump 53→ condenser 71.

[0075] The sixth valve port and the seventh valve port are communicated, and the sixth valve port and the ninth valve port are communicated, so that the radiator 31 and the condenser 71 are connected in series. The refrigerant can absorb the heat of the battery pack 21 in the heat exchanger 41, and is heat exchanged with the cooling liquid at the condenser 71, so that the heat is transmitted to the cooling liquid. When the cooling liquid flows through the radiator 31, it can be dissipated to the outside through the radiator 31, and the cooling of the battery pack 21 can be realized.

[0076] In addition, when the air conditioning system is refrigerated, the refrigerant can absorb the heat of the passenger compartment at the evaporator 72, and is heat exchanged with the cooling liquid at the condenser 71, so that the heat is transmitted to the cooling liquid. When the cooling liquid flows through the radiator 31, it can be dissipated to the outside through the radiator 31, and the cooling of the passenger compartment can be realized.

[0077] Referring to Figure 3 The working mode two of the thermal management system 100 is shown in FIG. 5.

[0078] Loop one: radiator 31→ first water pump 13→ electric control 12→ motor 11→ first control valve 61→ second water pump 22→ battery pack 21→ first control valve 61→ radiator 31.

[0079] The eighth valve port and the second valve port are communicated, and the third valve port and the seventh valve port are communicated. That is, the first control valve 61 connects the radiator loop 30, the high-pressure heat exchange loop 10 and the battery heat exchange loop 20 in series, and the radiator 31, the motor 11, the electric control 12 and the battery pack 21 are connected in series, so that the heat generated by the motor 11 and the electric control 12 and the heat of the battery pack 21 are brought to the radiator 31 through the cooling liquid, and the cooling of the motor 11 and the battery pack 21 is realized.

[0080] Loop two: condenser 71→ electric heater 52→ second control valve 62→ warm air core 51→ third water pump 53→ condenser 71. This loop can be optional and is not limited. The tenth valve port and the eleventh valve port are communicated, that is, the second control valve 62 communicates the two ends of the heating loop 50, the electric heater 52 can heat the cooling liquid in the heating loop 50, the high-temperature cooling liquid flows through the warm air core 51, and the heating of the passenger compartment is realized.

[0081] Referring to Figure 4 Fig. 3 shows the working mode three of the thermal management system 100:

[0082] Loop one: heat exchanger 41→first control valve 61→radiator 31→first water pump 13→electric control 12→electric machine 11→first control valve 61→heat exchanger 41.

[0083] The fourth valve port and the seventh valve port are communicated, and the fifth valve port and the eighth valve port are communicated, i.e. the first control valve 61 is connected in series with the radiator circuit 30 and the heat exchanger circuit 40, and the radiator 31, the first water pump 13, the electric control 12, the electric machine 11 and the heat exchanger 41 are connected in series. Under the driving of the first water pump 13, the cooling liquid flows through the radiator 31, the electric control 12 and the electric machine 11 in turn, absorbs the ambient heat at the radiator 31, absorbs the heat of the electric machine 11, and transmits the absorbed heat to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0084] Loop two: condenser 71→electric heater 52→second control valve 62→heating core 51→third water pump 53→condenser 71.

[0085] The second control valve 62 communicates the tenth valve port and the eleventh valve port, so that the two ends of the heating circuit 50 are communicated, and a closed loop is formed in the heating circuit 50. At the condenser 71, the refrigerant of the air conditioning system exchanges heat with the cooling liquid, and transmits the heat to the cooling liquid flowing through the condenser 71. Under the driving of the third water pump 53, the cooling liquid flows between the condenser 71, the electric heater 52 and the heating core 51, the refrigerant releases heat at the condenser 71, transmits the waste heat generated by the electric machine 11 and the electric control 12 to the cooling liquid flowing through the condenser 71, and the cooling liquid flows from the condenser 71 to the heating core 51, thereby achieving the heating of the passenger compartment.

[0086] Loop three: battery pack 21→second control valve 62→second water pump 22→battery pack 21. The second control valve 62 communicates the ninth valve port and the twelfth valve port, and the first control valve 61 communicates the second valve port and the sixth valve port. The first control valve 61 and the second control valve 62 communicate the two ends of the battery heat exchange circuit 20, and the cooling liquid circulates in the battery heat exchange circuit 20 to achieve the temperature equalization of the battery pack 21.

[0087] Referring to Figure 5 Fig. 4 shows the working mode four of the thermal management system 100:

[0088] Loop one: heat exchanger 41→first control valve 61→radiator 31→first water pump 13→electric control 12→electric machine 11→first control valve 61→heat exchanger 41.

[0089] The fourth valve port and the seventh valve port are communicated, and the fifth valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected in series with the radiator circuit 30 and the heat exchanger circuit 40, and the radiator 31, the first water pump 13, the electric control 12, the motor 11 and the heat exchanger 41 are connected in series. Under the driving of the first water pump 13, the cooling liquid flows through the radiator 31, the electric control 12, the motor 11 in sequence, absorbs the heat of the radiator 31 and the motor 11, and transmits the absorbed heat to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0090] Circuit two: condenser 71 → electric heater 52 → second control valve 62 → first control valve 61 → second water pump 22 → battery pack 21 → second control valve 62 → heating core 51 → third water pump 53 → condenser 71.

[0091] The second valve port and the sixth valve port are communicated, the ninth valve port and the tenth valve port are communicated, and the eleventh valve port and the twelfth valve port are communicated. The first control valve 61 and the second control valve 62 can also be connected in series with the heating circuit 50 and the battery heat exchange circuit 20. The battery pack 21 and the condenser 71 are connected in series. The refrigerant exchanges heat with the cooling liquid at the condenser 71, releases the heat of the motor 11 absorbed to the cooling liquid, and the cooling liquid flows out from the condenser 71, flows through the heating core 51 and the battery pack 21, realizes heating of the battery pack 21 and the passenger compartment, fully utilizes the heat generated by the motor 11, and improves the energy utilization rate. In a low temperature environment, the normal operation of the battery pack 21 is ensured, and the heating of the passenger compartment can be realized.

[0092] Referring to Figure 6 Fig. 5 shows the working mode five of the thermal management system 100:

[0093] Circuit one: heat exchanger 41 → first control valve 61 → first water pump 13 → electric control 12 → motor 11 → first control valve 61 → heat exchanger 41.

[0094] The first valve port and the fourth valve port are communicated, and the fifth valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected in series with the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40, and the first water pump 13, the electric control 12, the motor 11 and the heat exchanger 41 are connected in series. Under the driving of the first water pump 13, the cooling liquid flows through the electric control 12, the motor 11 in sequence, absorbs the heat of the motor 11, and transmits the absorbed heat to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0095] Circuit two: condenser 71 → electric heater 52 → second control valve 62 → heating core 51 → third water pump 53 → condenser 71.

[0096] When the second control valve 62 connects the tenth valve port and the eleventh valve port, the two ends of the heating circuit 50 are connected, and a closed loop is formed in the heating circuit 50. At the condenser 71, the refrigerant of the air conditioning system exchanges heat with the coolant, and the heat is transmitted to the coolant flowing through the condenser 71. Under the driving of the third water pump 53, the coolant flows between the condenser 71, the electric heater 52, and the heating core 51. The refrigerant releases heat at the condenser 71, and the waste heat generated by the motor 11 and the electric control 12 is transmitted to the coolant flowing through the condenser 71. The coolant flows from the condenser 71 to the heating core 51, thereby achieving heating of the passenger compartment.

[0097] Loop three: battery pack 21→second control valve 62→first control valve 61→second water pump 22→battery pack 21. The second control valve 62 connects the ninth valve port and the twelfth valve port, and the first control valve 61 connects the second valve port and the sixth valve port. The first control valve 61 and the second control valve 62 connect the two ends of the battery heat exchange circuit 20, and the coolant circulates in the battery heat exchange circuit 20, thereby achieving uniform temperature of the battery pack 21.

[0098] Referring to Figure 7 As shown in FIG. 6, the working mode six of the thermal management system 100 is:

[0099] Loop one: heat exchanger 41→first control valve 61→first water pump 13→electric control 12→motor 11→first control valve 61→heat exchanger 41.

[0100] Among them, the first valve port and the fourth valve port are connected, and the fifth valve port and the eighth valve port are connected, that is, the first control valve 61 connects the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40 in series, and the first water pump 13, the electric control 12, the motor 11, and the heat exchanger 41 are connected in series. Under the driving of the first water pump 13, the coolant flows through the electric control 12, the motor 11 in turn, and absorbs the heat of the motor 11. The absorbed heat is transmitted to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0101] Loop two: condenser 71→electric heater 52→second control valve 62→first control valve 61→second water pump 22→battery pack 21→second control valve 62→heating core 51→third water pump 53→condenser 71.

[0102] Among them, the second valve port and the sixth valve port are connected, the ninth valve port and the tenth valve port are connected, and the eleventh valve port and the twelfth valve port are connected. The first control valve 61 and the second control valve 62 connect the battery pack 21 and the condenser 71 in series. The refrigerant exchanges heat with the coolant at the condenser 71, and the heat absorbed by the motor 11 is released to the coolant. The coolant flows out of the condenser 71 and flows through the heating core 51 and the battery pack 21, thereby achieving heating of the battery pack 21 and the passenger compartment. The heat generated by the motor 11 is fully utilized, and the energy utilization rate is improved. In a low-temperature environment, the normal operation of the battery pack 21 is ensured, and the heating of the passenger compartment is achieved.

[0103] Referring to Figure 8 The working mode seven of the thermal management system 100 is shown as follows:

[0104] Loop one: second water pump 22→battery pack 21→first control valve 61→heat exchanger 41→first control valve 61→second water pump 22.

[0105] The third valve port and the fifth valve port are communicated, and the fourth valve port and the second valve port are communicated. That is to say, the battery heat exchange loop 20 and the heat exchanger 41 are connected in series through the first control valve 61, that is, the heat exchanger 41, the battery pack 21 and the second water pump 22 are connected in series, so that the coolant circulates between the heat exchanger 41 and the battery pack 21, the heat exchanger 41 can absorb the heat of the battery pack 21, and heat exchange with the air conditioning system, so as to realize the cooling of the battery pack 21.

[0106] Loop two: first water pump 13→electric control 12→motor 11→first control valve 61→one-way valve→first control valve 61→first water pump 13.

[0107] The first valve port and the eighth valve port are communicated, that is, the first control valve 61 is connected to both ends of the high-pressure heat exchange water circuit, so as to realize the heat storage of the motor 11.

[0108] Loop three: condenser 71→electric heater 52→second control valve 62→warm air core 51→third water pump 53→condenser 71.

[0109] The second control valve 62 connects the tenth valve port and the eleventh valve port, so that both ends of the heating loop 50 are communicated, and a closed loop is formed in the heating loop 50. At the condenser 71, the coolant of the air conditioning system exchanges heat with the coolant, and the heat is transmitted to the coolant flowing through the condenser 71, and under the drive of the third water pump 53, the coolant flows between the condenser 71, the electric heater 52 and the warm air core 51, so that the passenger compartment heating can be realized by heating through the electric heater 52.

[0110] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0111] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like 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.

[0112] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized by, The air conditioning system comprises: a first control valve (61) which is communicated with a high-pressure heat exchange circuit (10), a battery heat exchange circuit (20), a radiator circuit (30) and a heat exchanger circuit (40), and selectively communicates one or more of the high-pressure heat exchange circuit (10), the battery heat exchange circuit (20), the radiator circuit (30) and the heat exchanger circuit (40), and exchanges heat with the heat exchanger circuit (40) and a heating circuit (50); a second control valve (62) which is communicated with the first control valve (61) at one valve port, communicated with one end of the battery heat exchange circuit (20) at another valve port, and communicated with two ends of the heating circuit (50) at the remaining two valve ports. Further comprising:

2. The thermal management system of claim 1, wherein, a multi-pass pipe (63) which is communicated with one end of the battery heat exchange circuit (20) at one end, communicated with the first control valve (61) at another end, and communicated with the second control valve (62) at the remaining end. Further comprising:

3. The thermal management system of claim 2, wherein, a first branch (64) which is communicated with the remaining end of the multi-pass pipe (63) at one end, and communicated with the second control valve (62) at the other end. The heating circuit (50) comprises: a condenser (71), an electric heater (52) and a warm air core (51) which are connected in series; and 4. The thermal management system of claim 1, wherein, The air conditioning system comprises: a compressor (73) and an evaporator (72) which are connected in series with the condenser (71); wherein the heat exchanger (41) and the evaporator (72) are connected in parallel with each other and in series with the condenser (71). Further comprising:

5. The thermal management system of claim 4, wherein, a second branch (65) which is communicated with one end of the radiator circuit (30) at one end, and communicated with one end of the condenser (71) at the other end. The heat exchanger circuit (40) comprises: a heat exchanger (41) which is communicated with the first control valve (61) at two ends, and communicated with the air conditioning system; and 6. The thermal management system of claim 4, wherein, The air conditioning system comprises: a compressor (73) and an evaporator (72) which are connected in series with the condenser (71); wherein the heat exchanger (41) and the evaporator (72) are connected in parallel with each other and in series with the condenser (71). One end of the high-pressure heat exchange circuit (10) is communicated with the first control valve (61), and the other end of the high-pressure heat exchange circuit (10) is communicated with one end of the radiator circuit (30); and 7. The thermal management system of claim 1, wherein, ​ The high-pressure heat exchange circuit (10) comprises a motor (11), an electric control (12) and a first water pump (13), which are connected in series.

8. The thermal management system of claim 1, wherein, The radiator circuit (30) comprises a radiator (31), one end of the radiator (31) being communicated with the first control valve (61) and the other end of the high-pressure heat exchange circuit (10), and the other end of the radiator (31) being communicated with the first control valve (61).

9. The thermal management system of claim 1, wherein, One end of the battery heat exchange circuit (20) is communicated with the first control valve (61) and the second control valve (62), and the other end of the battery heat exchange circuit (20) is communicated with the first control valve (61); and The battery heat exchange circuit (20) comprises a battery pack (21) and a second water pump (22), which are connected in series.

10. A vehicle characterized by comprising: The heat management system (100) according to any one of claims 1-9. The heat management system (100) according to any one of claims 1-9.

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