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, the heat exchanger loop and the heating loop, and the air conditioning system exchanges heat with the heat exchanger loop and the heating loop; one end of the second control valve is communicated with one end of the battery heat exchange loop, the other end of the second control valve is communicated with one end of the heating loop, and the other end of the second control valve is communicated with the other end of the heating loop; and a first multi-way pipe. 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 first multi-way pipe, the first control valve and the second control valve can achieve double heating of the passenger compartment and the battery, and the energy utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of vehicle thermal management technology, and in particular to a thermal management system and a vehicle. Background Technology

[0002] With the rapid development of my country's pure electric vehicle industry, the integration of vehicle control systems is becoming increasingly sophisticated. 800V high-voltage systems offer higher efficiency and faster charging, while thermal management systems are continuously improving towards higher efficiency and energy conservation. Heat pump systems have become widely used, waste heat from motors is being utilized more effectively, and battery cooling and heating methods are diversifying. Ultimately, this has led to a more complex and diverse thermal management system architecture across various vehicle models.

[0003] Due to differences in properties and design requirements, each system and component of a pure electric vehicle has a different optimal operating temperature range. Therefore, external auxiliary means are needed to maintain each component within a suitable temperature range to ensure normal, stable, and efficient operation of the components and to meet the comfort needs of passengers in the passenger compartment. In pure electric vehicles, the battery generates a large amount of heat during operation, and the performance and lifespan of the battery are closely related to temperature. Therefore, an efficient and intelligent thermal management architecture is crucial. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a thermal management system that uses a first control valve and a second control valve to connect each circuit, reducing the number of components; it can also use waste heat from the motor to heat the battery pack or warm the passenger compartment, improving energy efficiency.

[0005] This utility model also proposes a vehicle.

[0006] A thermal management system according to a first aspect of the present invention includes: an air conditioning system; a first control valve, which is connected to a high-pressure heat exchange circuit, a battery heat exchange circuit, a radiator circuit, a heat exchanger circuit, and a heating circuit, wherein the first control valve selectively connects to one or more of the high-pressure heat exchange circuit, the battery heat exchange circuit, the radiator circuit, the heat exchanger circuit, and the heating circuit, and the air conditioning system exchanges heat with the heat exchanger circuit and the heating circuit; a second control valve, one end of which is connected to one end of the battery heat exchange circuit, another end of which is connected to one end of the heating circuit, and yet another end of which is connected to the other end of the heating circuit; and a first multi-way pipe, one end of which is connected to one end of the battery heat exchange circuit, another end of which is connected to the second control valve, and yet another end of which is connected to the first control valve.

[0007] According to the thermal management system of this utility model embodiment, a first control valve and a second control valve are used to connect each circuit, reducing the number of parts; a first multi-port pipe connects one end of the battery heat exchange circuit to the second control valve, which can realize dual heating of the passenger compartment and the battery, improving energy utilization.

[0008] According to some embodiments of the present invention, the thermal management system further includes: a first one-way valve, one end of which is connected to one end of the battery heat exchange circuit, and the other end of which is connected to the first control valve.

[0009] According to some embodiments of the present invention, the thermal management system further includes: a second one-way valve, one end of the second one-way valve being connected to the other end of the first one-way valve and the first control valve, and the other end of the second one-way valve being connected to the first control valve.

[0010] According to some embodiments of the present invention, the thermal management system further includes: a second multi-way pipe, one end of which is connected to the other end of the first one-way valve, another end of which is connected to one end of the second one-way valve, and yet another end of which is connected to the first control valve.

[0011] According to some embodiments of the present invention, the thermal management system further includes: a first shut-off valve, one end of which is connected to one end of the battery heat exchange circuit, and the other end of which is connected to one end of the heat exchanger circuit.

[0012] According to some embodiments of the present invention, the heating circuit includes: a condenser, an electric heater, and a heating core. The electric heater and the heating core are connected in series. One end of the condenser is connected to the second control valve, and the other end of the condenser is connected to one end of the heating core and the first control valve. The other end of the heating core is connected to the second control valve.

[0013] According to some embodiments of the present invention, the heat exchanger circuit includes: a heat exchanger, one end of which is connected to a first control valve, and the other end of which is connected to the first control valve and one end of the battery heat exchange circuit, and the air conditioning system is connected to the heat exchanger; and the air conditioning system includes: a compressor and an evaporator, the compressor, the evaporator and the condenser being connected in series; wherein the heat exchanger and the evaporator are connected in parallel and in series with the condenser.

[0014] According to some embodiments of the present invention, one end of the high-pressure heat exchange circuit is connected to the first control valve and one end of the radiator circuit, and the other end of the high-pressure heat exchange circuit is connected to the first control valve; and the high-pressure heat exchange circuit includes: a motor, an electronic control unit and a first water pump, wherein the motor, the electronic control unit and the first water pump are connected in series.

[0015] According to some embodiments of the present invention, the radiator circuit includes: a radiator, one end of which is connected to the first control valve and one end of the high-pressure heat exchange circuit, and the other end of which is connected to the first control valve.

[0016] A vehicle according to a second aspect of the present invention includes: the thermal management system.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of the thermal management system according to an embodiment of the present utility model;

[0020] Figure 2 This is a circuit diagram of the first mode of the thermal management system according to an embodiment of the present utility model;

[0021] Figure 3 This is a circuit diagram of the second mode of the thermal management system according to an embodiment of the present utility model;

[0022] Figure 4 This is a circuit diagram of the third mode of the thermal management system according to an embodiment of the present utility model;

[0023] Figure 5 This is a circuit diagram of the fourth mode of the thermal management system according to an embodiment of the present utility model;

[0024] Figure 6 This is a circuit diagram of the fifth mode of the thermal management system according to an embodiment of the present utility model;

[0025] Figure 7 This is a circuit diagram of the sixth mode of the thermal management system according to an embodiment of the present utility model.

[0026] Figure label:

[0027] 100. Thermal management system;

[0028] 10. High-pressure heat exchange circuit; 11. Motor; 12. Electrical control; 13. First water pump;

[0029] 20. Battery heat exchange circuit; 21. Battery pack; 22. Second water pump;

[0030] 30. Radiator circuit; 31. Radiator;

[0031] 40. Heat exchanger circuit; 41. Heat exchanger;

[0032] 50. Heating circuit; 51. Heater core; 52. Electric heater; 53. Third water pump;

[0033] 61. First control valve; 62. Second control valve; 63. First multi-port pipe; 64. Second multi-port pipe; 65. First check valve; 66. Second check valve; 67. First branch; 68. Second branch; 69. First shut-off valve;

[0034] 71. Condenser; 72. Evaporator; 73. Compressor;

[0035] 81. Overflow tank; 82. Four-way pipe. Detailed Implementation

[0036] 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.

[0037] The following is for reference. Figures 1-7 The description of the thermal management system 100 according to an embodiment of the present invention also includes a vehicle.

[0038] The thermal management system 100 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, a heat exchanger circuit 40, and a heating circuit 50. 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, the heat exchanger circuit 40, and the heating circuit 50. The air conditioning system exchanges heat with the heat exchanger circuit 40 and the heating circuit 50.

[0039] For example, such as Figure 2 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.

[0040] like Figure 2As shown, the first control valve 61 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 transfer the heat to the air conditioning system. The heat is used for heating the crew cabin through the condenser 71 or for cooling through the radiator 31.

[0041] like Figure 3 As shown, 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. The coolant circulates between the radiator 31, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20, thereby transporting the heat generated by the battery pack 21 and the high-voltage devices to the radiator 31 and dissipating it to the outside, thus achieving heat dissipation for the battery pack 21 and the high-voltage devices.

[0042] like Figure 4 As shown, the first control valve 61 can connect the radiator circuit 30, the high-pressure heat exchange circuit 10, and the heat exchanger circuit 40. The high-pressure heat exchange circuit 10, the heat exchanger circuit 40, and the radiator circuit 30 are connected in series. The coolant circulates between the radiator circuit 30, the high-pressure heat exchange circuit 10, and the battery heat exchange circuit 20. The temperature of the coolant is lower than the ambient temperature. The coolant can absorb the heat from the motor 11 on the high-pressure heat exchange circuit 10 and absorb ambient heat at the radiator 31. The heat is then transferred to the air conditioning system through the heat exchanger 41. The refrigerant in the air conditioning system exchanges heat with the coolant in the heating circuit 50 at the condenser 71. The coolant in the heating circuit 50 absorbs heat and is used for heating the passenger compartment.

[0043] For example, such as Figure 5 As shown, the first control valve 61 can connect the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40. The high-pressure heat exchange circuit 10 and the heat exchanger circuit 40 are connected in series to form a closed loop. The heat exchanger circuit 40 exchanges heat with the air conditioning system. The refrigerant of the air conditioning system absorbs the waste heat generated by the high-pressure device. When the condenser 71 is connected in series with the battery heat exchange circuit 20, the heat can be used to heat the battery pack 21.

[0044] The thermal management system 100 also includes: a second control valve 62, one end of which is connected to one end of the battery heat exchange circuit 20, another end of which is connected to one end of the heating circuit 50, and yet another end of which is connected to the other end of the heating circuit 50. Specifically, as... Figure 2 and Figure 4As shown, the second control valve 62 can connect both ends of the heating circuit 50 to heat the passenger compartment. The second control valve 62 can also connect one end of the battery heat exchange circuit 20 to one end of the heating circuit 50, thereby connecting the condenser 71 in series with the battery heat exchange circuit 20 and / or the radiator circuit 30 to heat the battery pack 21 or cool the condenser 71.

[0045] The thermal management system 100 also includes: a first multi-port pipe 63, one end of which is connected to one end of the battery heat exchange circuit 20, another end of which is connected to a second control valve 62, and yet another end of which is connected to a first control valve 61. Specifically, the multi-port pipe can connect one end of the battery heat exchange circuit 20 to the second control valve 62 and the first control valve 61, or connect both ends of the battery heat exchange circuit 20 to achieve battery temperature equalization; or, it can connect the battery heat exchange circuit 20 and the condenser 71 in series to heat the battery pack 21.

[0046] Combination Figures 1-7 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 1-7 The "a" in the middle; the second valve port is... Figures 1-7 The "b" in the figure refers to the third valve port. Figures 1-7 The "c" in the text refers to the fourth valve port. Figures 1-7 The "d" in the figure refers to the fifth valve port. Figures 1-7 The "e" in the figure refers to the sixth valve port. Figures 1-7 The "f" in the text refers to the seventh valve port. Figures 1-7 The "g" in the middle; the eighth valve port is... Figures 1-7 The "h" in the text.

[0047] The second control valve 62 includes: a ninth valve port, a tenth valve port, and an eleventh valve port, wherein the ninth valve port is... Figures 1-7 The "i" in the text refers to the tenth valve port. Figures 1-7 The "j" in the text; the eleventh valve port is... Figures 1-7 The "k" in the text.

[0048] According to some embodiments of this utility model, the thermal management system 100 further includes: a first one-way valve 65, one end of which is connected to one end of the battery heat exchange circuit 20, and the other end of which is connected to a first control valve 61. Specifically, the first one-way valve 65 allows the coolant flowing from one end of the battery heat exchange circuit 20 to flow unidirectionally towards the first control valve 61, such as... Figure 3 As shown, the first control valve 61 connects the first valve port and the fourth valve port, and also connects the sixth valve port and the seventh valve port. The first one-way valve 65 can connect one end of the battery heat exchange circuit 20 and the sixth valve port. Thus, the battery heat exchange circuit 20 and the radiator circuit 30 are connected in series to achieve cooling of the battery pack 21.

[0049] The thermal management system 100 also includes: a second check valve 66, one end of which is connected to the other end of the first check valve 65 and the first control valve 61, and the other end of which is connected to the first control valve 61. Specifically, as... Figure 3 As shown, the second one-way valve 66 connects the other end of the first one-way valve 65 to the sixth valve port. If the first control valve 61 is connected to the first valve port and the fourth valve port and to the sixth valve port and the seventh valve port, then the battery heat exchange circuit 20 and the radiator circuit 30 are connected in series to achieve cooling of the battery pack 21.

[0050] Or, such as Figure 3 As shown, the second one-way valve 66 can connect the fifth valve port and the sixth valve port, and the first control valve 61 connects the fifth valve port and the eighth valve port and the sixth valve port and the seventh valve port. That is, the radiator 31 and the high-pressure heat exchange circuit 10 are connected in series to realize the heat dissipation of the motor 11.

[0051] According to some embodiments of this utility model, the thermal management system 100 further includes: a second multi-way pipe 64, one end of which is connected to the other end of the first one-way valve 65, another end of which is connected to one end of the second one-way valve 66, and the last end of which is connected to the first control valve 61. Specifically, the thermal management system 100 further includes: a first branch 67, one end of which is connected between the first one-way valve 65 and the second one-way valve 66, and the other end of which is connected to the fifth valve port. The last end of a three-way pipe is connected to one end of the first branch 67. The three-way pipe can connect the first one-way valve 65 and the second one-way valve 66. When the first control valve 61 is connected to the fourth valve port and the fifth valve port, battery temperature equalization can be achieved. The three-way pipe can also connect the fifth valve port and the second one-way valve 66. The first control valve 61 is connected to the fifth valve port and the eighth valve port, and also to the sixth valve port and the seventh valve port, connecting the radiator circuit 30 and the high-pressure heat exchange circuit 10 in series to achieve heat dissipation of the motor 11.

[0052] According to some embodiments of this utility model, the thermal management system 100 further includes: a first shut-off valve 69, one end of which is connected to one end of the battery heat exchange circuit 20, and the other end of which is connected to one end of the heat exchanger circuit 40. Specifically, the thermal management system 100 further includes: a second branch 68, one end of which is connected to a first control valve 61, and the other end of which is connected to one end of the heat exchanger circuit 40. The second branch 68 connects to a third valve port and one end of the heat exchanger circuit 40. If the first control valve 61 connects to the second valve port and the seventh valve port and connects to the third valve port and the eighth valve port, then the heat exchanger circuit 40, the high-pressure heat exchange circuit 10, and the radiator circuit 30 are connected in series. The heat exchanger 41 can absorb the heat from the motor 11 and the ambient heat, and transfer the heat from the motor 11 and the ambient heat to the air conditioning system. Through the condenser 71 connected in series with the heater core 51 or the battery pack 21, the passenger compartment can be heated or the battery pack 21 can be heated.

[0053] According to some embodiments of this utility model, the heating circuit 50 includes: a condenser 71, an electric heater 52, and a heater core 51. The electric heater 52 and the heater core 51 are connected in series. One end of the condenser 71 is connected to a second control valve 62, and the other end of the condenser 71 is connected to one end of the heater core 51 and a first control valve 61. The other end of the heater core 51 is connected to the second control valve 62. The condenser 71 can be part of both the air conditioning system and the heating circuit 50. When the air conditioning system is running, the condenser 71 generates heat, which can be transferred to the battery heat exchange circuit 20 or the heater core 51 via the first control valve 61 and the second control valve 62, thereby heating the battery pack 21 or the passenger compartment and making reasonable use of the heat generated by the condenser 71.

[0054] One end of the heater core 51 is connected to the second control valve 62, and the other end of the heater core 51 is connected to the other end of the condenser 71. The condenser 71 dissipates heat into the coolant, and the coolant flows through the heater core 51, thereby dissipating heat into the passenger compartment and heating the passenger compartment.

[0055] An electric heater 52 is installed between the heater core 51 and the condenser 71. The electric heater 52 can heat the coolant in the heating circuit 50, so that the electric heater 52 can provide heating when the air conditioning system is not running. The electric heater 52 can be a PTC heater.

[0056] The heating circuit 50 also includes a third water pump 53, which is located between one end of the condenser 71 and the second control valve 62, and is connected in series with the condenser 71. The third water pump 53 can realize the circulation of coolant.

[0057] According to some embodiments of this utility model, the heat exchanger circuit 40 includes: a heat exchanger 41, one end of which is connected to a first control valve 61, and the other end of which is connected to the first control valve 61 and one end of the battery heat exchange circuit 20, and the air conditioning system is connected to the heat exchanger 41. The air conditioning system includes: a compressor 73 and an evaporator 72, wherein the compressor 73, evaporator 72, and condenser 71 are connected in series; wherein the heat exchanger 41 and evaporator 72 are connected in parallel and in series with the condenser 71. The refrigerant in the condenser 71 exchanges heat with the coolant in the heat exchanger 41, thereby allowing the refrigerant to absorb heat from the battery heat exchange circuit 20 or the high-pressure heat exchange circuit 10. The refrigerant flows out of the compressor 73, releases heat at the condenser 71, absorbs heat at the evaporator 72 after releasing heat, and finally returns to the compressor 73. When the passenger compartment is cooled, the refrigerant absorbs heat from the passenger compartment at the evaporator 72, and the coolant flowing through the condenser 71 releases heat to the heating circuit 50.

[0058] Furthermore, if the heat exchanger 41 is connected in parallel with the evaporator 72, the refrigerant can flow to the heat exchanger 41 to absorb heat after the condenser 71 releases heat. The heat absorbed by the refrigerant from the heat exchanger 41 can be transferred to the heating circuit 50 at the condenser 71 for heating the crew compartment; or, the refrigerant can flow to the evaporator 72 to absorb heat after the condenser 71 releases heat.

[0059] According to some embodiments of this utility model, one end of the high-pressure heat exchange circuit 10 is connected to the first control valve 61 and one end of the radiator circuit 30, and the other end of the high-pressure heat exchange circuit 10 is connected to the first control valve 61; and the high-pressure heat exchange circuit 10 includes: a motor 11, an electronic control 12, and a first water pump 13, which are connected in series. Specifically, the first control valve 61 can be connected to the eighth valve port and the fifth valve port, and also to the sixth valve port and the seventh valve port, 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 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.

[0060] According to some embodiments of this utility model, the radiator circuit 30 includes a radiator 31, one end of which is connected to the first control valve 61 and one end of the high-pressure heat exchange circuit 10, and the other end of which is connected to the first control valve 61. Specifically, when the coolant flows through the radiator 31, if the temperature of the coolant is higher than that of the radiator 31, the radiator 31 dissipates heat to the outside; if the temperature of the coolant is lower than that of the radiator 31, the coolant absorbs heat from the radiator 31.

[0061] Furthermore, the battery heat exchange circuit 20 includes a battery pack 21 and a second water pump 22, which are connected in series. Coolant can flow through the battery heat exchange circuit 20 under the drive of the second water pump 22. If the temperature of the coolant flowing through the battery heat exchange circuit 20 is higher than that of the battery pack 21, the coolant heats the battery pack 21; if the temperature of the coolant flowing through the battery heat exchange circuit 20 is lower than that of the battery pack 21, the coolant cools the battery pack 21.

[0062] The thermal management system 100 also includes an overflow tank 81 and a four-way pipe 82. The four-way pipe 82 is connected to the radiator circuit 30, the first control valve 61, the high-pressure heat exchange circuit 10, and the overflow tank 81, respectively. The radiator 31 is connected to the first valve port and the high-pressure heat exchange circuit 10 through the four-way pipe 82. One port of the four-way pipe 82 is connected to one end of the radiator 31, another port of the four-way pipe 82 is connected to the overflow tank 81, yet another port of the four-way pipe 82 is connected to the first valve port, and yet another port of the four-way pipe 82 is connected to one end of the high-pressure heat exchange circuit 10.

[0063] A vehicle according to a second aspect of the present invention includes a thermal management system 100.

[0064] The following reference Figures 2-7 The following describes six operating modes of the thermal management system 100 according to an embodiment of the present invention.

[0065] Reference Figure 2 As shown, the thermal management system 100 operates in mode one:

[0066] Circuit 1: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second check valve 66 → First control valve 61 → Radiator 31.

[0067] Among them, the fifth valve port and the eighth valve port are connected, and the sixth valve port and the seventh valve port are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30 and the high-pressure heat exchange circuit 10, so that the waste heat generated by the motor 11 and the electronic control 12 can be dissipated to the outside through the radiator 31 to achieve cooling of the motor 11 and the electronic control 12.

[0068] Loop 2: Second water pump 22 → Battery pack 21 → First shut-off valve 69 → Heat exchanger 41 → First control valve 61 → Second water pump 22.

[0069] The second and fourth valve ports are connected, meaning that 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 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 exchange heat with the air conditioning system, thereby cooling the battery pack 21.

[0070] Circuit 3: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0071] Among them, the tenth valve port and the eleventh valve port are connected, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the battery pack 21 and releases it to the air conditioning system, and the condenser 71 can transfer this part of the heat to the heating circuit 50 for the heating of the crew cabin and improve the energy utilization rate.

[0072] Reference Figure 3 As shown, the second working mode of the thermal management system 100 is as follows:

[0073] Circuit 1: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second check valve 66 → First control valve 61 → Radiator 31.

[0074] Among them, the fifth valve port and the eighth valve port are connected, and the sixth valve port and the seventh valve port are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30 and the high-pressure heat exchange circuit 10, so that the waste heat generated by the motor 11 and the electronic control 12 can be dissipated to the outside through the radiator 31 to achieve cooling of the motor 11 and the electronic control 12.

[0075] Circuit 2: Radiator 31 → First control valve 61 → Second water pump 22 → Battery pack 21 → First check valve 65 → Second check valve 66 → First control valve 61 → Radiator 31.

[0076] The first valve port and the fourth valve port are connected, and the sixth valve port and the seventh valve port are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30 and the battery heat exchange circuit 20. The coolant flows between the battery heat exchange circuit 20 and the radiator circuit 30, dissipating the heat of the battery to the outside through the radiator 31, thereby cooling the battery pack 21.

[0077] In addition, circuit one and circuit two connect the battery heat exchange circuit 20 and the high-voltage heat exchange circuit 10 in parallel and then connect them in series with the radiator 31 to achieve simultaneous cooling of the battery pack 21 and the motor 11.

[0078] Circuit 3: Radiator 31 → First control valve 61 → Second water pump 22 → Battery pack 21 → Second control valve 62 → Third water pump 53 → Condenser 71 → Electric heater 52 → First control valve 61 → Radiator 31.

[0079] The first valve port and the fourth valve port are connected, and the sixth valve port and the seventh valve port are connected. That is, the first control valve 61 is connected in series with the radiator circuit 30, the battery heat exchange circuit 20 and the condenser 71. The coolant flows between the battery pack 21, the condenser 71 and the radiator 31, dissipating the heat of the battery pack 21 and the condenser 71 to the outside through the radiator 31, thereby cooling the battery pack 21 and the condenser 71.

[0080] In addition, the simultaneous connection of circuit one, circuit two and circuit three can realize the parallel connection of battery heat exchange circuit 20, high-pressure heat exchange circuit 10 and condenser 71 and then the series connection of radiator 31, thereby simultaneously cooling battery pack 21, condenser 71 and motor 11.

[0081] Reference Figure 4 As shown, the thermal management system 100 operates in mode three:

[0082] Circuit 1: Radiator 31 → First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Heat exchanger 41 → First control valve 61 → Radiator 31.

[0083] The eighth valve port is connected to the third valve port, and the second valve port is connected to the seventh valve port. That is to say, the first control valve 61 is connected in series with the radiator circuit 30, the high-pressure heat exchange circuit 10, and the heat exchanger circuit 40. The radiator 31, the first water pump 13, the electrical control 12, the motor 11, and the heat exchanger 41 are connected in series. Driven by the first water pump 13, the coolant flows through the radiator 31, the electrical control 12, and the motor 11 in sequence. The coolant absorbs ambient heat at the radiator 31 and also absorbs heat from the motor 11. The absorbed heat is then transferred to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0084] Circuit 2: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0085] Among them, the tenth valve port and the eleventh valve port are connected, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the motor 11 and the ambient heat and releases it to the air conditioning system, and the condenser 71 can transfer this part of the heat to the heating circuit 50 for heating the passenger compartment and improve energy utilization.

[0086] Circuit 3: Battery pack 21 → First check valve 65 → Second check valve 66 → First control valve 61 → Second water pump 22 → Battery pack 21.

[0087] The fourth valve port and the sixth valve port are connected. The first control valve 61, the first one-way valve 65 and the second one-way valve 66 are connected to the two ends of the battery heat exchange circuit 20. The coolant circulates in the battery heat exchange circuit 20 to achieve uniform temperature of the battery pack 21.

[0088] Reference Figure 5 As shown, the thermal management system 100 operates in mode four:

[0089] Loop 1: First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Heat exchanger 41 → First control valve 61 → First water pump 13.

[0090] The first valve port and the second valve port are connected, and the third valve port and the eighth valve port are connected. 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. The first water pump 13, the electrical control 12, the motor 11 and the heat exchanger 41 are connected in series. Driven by the first water pump 13, the coolant flows through the electrical control 12 and the motor 11 in sequence and absorbs the heat of the motor 11. The absorbed heat is then transferred to the refrigerant circulating in the air conditioning system through the heat exchanger 41.

[0091] Circuit 2: Condenser 71 → Electric heater 52 → First control valve 61 → Second water pump 22 → Battery pack 21 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0092] The first control valve 61 connects the fourth valve port and the sixth valve port, and the second control valve 62 connects the ninth valve port and the tenth valve port. The battery heat exchange circuit 20 and the condenser 71 are connected in series. The condenser 71 can use the heat absorbed by the motor 11 by the heat exchanger 41 to heat the battery pack 21, thereby improving the energy utilization rate.

[0093] Circuit 3: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0094] Among them, the tenth valve port and the eleventh valve port are connected, the second control valve 62 is connected to both ends of the heating circuit 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the heat exchanger 41 absorbs the heat of the motor 11 and releases it to the air conditioning system, and the condenser 71 can transfer this part of the heat to the heating circuit 50 for heating the passenger compartment and improve energy utilization.

[0095] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0096] Reference Figure 6As shown, the thermal management system 100 operates in mode five:

[0097] Circuit 1: First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → First water pump 13.

[0098] The first valve port is connected to the eighth valve port, that is, the first control valve 61 is connected to both ends of the high-pressure hot water exchange circuit to realize the heat storage of the motor 11.

[0099] Circuit 2: Condenser 71 → Electric heater 52 → First control valve 61 → Second water pump 22 → Battery pack 21 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0100] The first control valve 61 connects the fourth and sixth valve ports, and the second control valve 62 connects the ninth and tenth valve ports. The battery heat exchange circuit 20 and the condenser 71 are connected in series. When the compressor 73 is working, the refrigerant releases heat in the condenser 71. The coolant and refrigerant exchange heat at the condenser 71. The coolant flows out of the condenser 71 and flows to the battery heat exchange circuit 20, thereby heating the battery pack 21.

[0101] Circuit 3: Condenser 71 → Electric heater 52 → Warm air core 51 → Second control valve 62 → Third water pump 53 → Condenser 71.

[0102] The tenth and eleventh valve ports are connected, the second control valve 62 connects the two ends of the heating circuit 50, and the condenser 71, electric heater 52, heater core 51, and third water pump 53 are connected in series. The compressor 73 can work to generate heat and achieve heating of the crew cabin (at this time, the heat exchanger 41 is not working). In extreme environments, rapid heating is required. The refrigerant flowing out of the compressor 73 is divided into two parts. One part of the refrigerant does not pass through the condenser 71 and returns directly to the compressor 73; the other part flows to the condenser 71 and releases heat at the condenser 71. The condenser 71 is then connected in series with the heater core 51, thereby achieving heating of the crew cabin. After that, the other part of the refrigerant that has released heat flows to the heat exchanger 41. The two parts of the refrigerant mix at the heat exchanger 41 and then return to the compressor 73.

[0103] Loop 3 and loop 2 can be connected simultaneously, or loop 2 or loop 3 can be connected individually.

[0104] Reference Figure 7 As shown, the thermal management system 100 operates in mode six:

[0105] Circuit 1: First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second water pump 22 → Battery pack 21 → First check valve 65 → Second check valve 66 → First control valve 61 → First water pump 13.

[0106] Among them, the first valve port is connected to the sixth valve port, and the fourth valve port is connected to the eighth valve port. That is, the first control valve 61, the first check valve 65 and the second check valve 66 are connected in series to the high-pressure hot water exchange circuit and the battery heat exchange circuit 20. The heat generated by the motor 11 can be used to heat the battery pack 21.

[0107] Circuit 2: First water pump 13 → Electrical control 12 → Motor 11 → First control valve 61 → Second water pump 22 → Battery pack 21 → Second control valve 62 → Third water pump 53 → Condenser 71 → Electric heater 52 → First control valve 61 → First water pump 13.

[0108] The first valve port is connected to the sixth valve port, the fourth valve port is connected to the eighth valve port, and the second control valve 62 is connected to the ninth and tenth valve ports, connecting the heat exchange circuit of the motor 11, the heat exchange circuit of the battery 20, and the condenser 71 in series. While the heat from the motor 11 is used to heat the battery pack 21, the compressor 73 operates, heating the battery pack 21 (at this time, the heat exchanger 41 is not operating). In extreme environments, rapid heating is required. The refrigerant flowing out of the compressor 73 is divided into two parts: one part of the refrigerant bypasses the condenser 71 and returns directly to the compressor 73; the other part flows to the condenser 71 and releases heat there. The condenser 71 is then connected in series with the battery pack 21, thus heating the battery pack 21. Afterward, the remaining refrigerant, having released its heat, flows to the heat exchanger 41, where the two parts mix and return to the compressor 73.

[0109] Loop 1 and Loop 2 can be connected simultaneously, or Loop 1 can be connected alone.

[0110] In the description of this utility model, it should be understood that 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0111] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0112] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized in that, include: Air conditioning system; A first control valve (61) is connected to a high-pressure heat exchange circuit (10), a battery heat exchange circuit (20), a radiator circuit (30), a heat exchanger circuit (40), and a heating circuit (50). 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), the heat exchanger circuit (40), and the heating circuit (50). The air conditioning system exchanges heat with the heat exchanger circuit (40) and the heating circuit (50). The second control valve (62) has one end connected to one end of the battery heat exchange circuit (20), another end connected to one end of the heating circuit (50), and yet another end connected to the other end of the heating circuit (50). The first multi-port pipe (63) has one end connected to one end of the battery heat exchange circuit (20), another end connected to the second control valve (62), and yet another end connected to the first control valve (61).

2. The thermal management system according to claim 1, characterized in that, Also includes: The first one-way valve (65) has one end connected to one end of the battery heat exchange circuit (20), and the other end connected to the first control valve (61).

3. The thermal management system according to claim 2, characterized in that, Also includes: The second check valve (66) has one end connected to the other end of the first check valve (65) and the first control valve (61), and the other end of the second check valve (66) is connected to the first control valve (61).

4. The thermal management system according to claim 3, characterized in that, Also includes: The second multi-port pipe (64) has one end connected to the other end of the first one-way valve (65), another end connected to one end of the second one-way valve (66), and yet another end connected to the first control valve (61).

5. The thermal management system according to claim 1, characterized in that, Also includes: The first shut-off valve (69) has one end connected to one end of the battery heat exchange circuit (20) and the other end connected to one end of the heat exchanger circuit (40).

6. The thermal management system according to claim 1, characterized in that, The heating circuit (50) includes: a condenser (71), an electric heater (52) and a heating core (51). The electric heater (52) and the heating core (51) are connected in series. One end of the condenser (71) is connected to the second control valve (62). The other end of the condenser (71) is connected to one end of the heating core (51) and the first control valve (61). The other end of the heating core (51) is connected to the second control valve (62).

7. The thermal management system according to claim 6, characterized in that, The heat exchanger circuit (40) includes: a heat exchanger (41), one end of which is connected to a first control valve (61), and the other end of which is connected to the first control valve (61) and one end of the battery heat exchange circuit (20), and the air conditioning system is connected to the heat exchanger (41); and, The air conditioning system includes a compressor (73) and an evaporator (72), wherein the compressor (73), the evaporator (72) and the condenser (71) are connected in series. The heat exchanger (41) and the evaporator (72) are connected in parallel and in series with the condenser (71).

8. The thermal management system according to claim 1, characterized in that, One end of the high-pressure heat exchange circuit (10) is connected to the first control valve (61) and one end of the radiator circuit (30), and the other end of the high-pressure heat exchange circuit (10) is connected to the first control valve (61); and, The high-pressure heat exchange circuit (10) includes a motor (11), an electrical control (12), and a first water pump (13), wherein the motor (11), the electrical control (12), and the first water pump (13) are connected in series.

9. The thermal management system according to claim 1, characterized in that, The radiator circuit (30) includes a radiator (31), one end of which is connected to the first control valve (61) and one end of the high-pressure heat exchange circuit (10), and the other end of which is connected to the first control valve (61).

10. A vehicle, characterized in that, include: The thermal management system (100) according to any one of claims 1-9.

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