Thermal management system and vehicle

Abstract

The utility model discloses a thermal management system and a vehicle, the thermal management system comprises a radiator, a heat exchanger water path, a battery, a motor and a heating water path, the radiator, the heat exchanger water path, the battery, the motor and the heating water path are mutually connected in parallel; the heat management system further comprises a first control valve, the first control valve is provided with a first valve port, a second valve port and a third valve port, the first valve port is communicated with the first end of the heating waterway, the second valve port is communicated with the second end of the heating waterway and the second end of the battery, and the third valve port is communicated with the second end of the radiator and the second end of the motor. The heat exchanger water path and the heating water path are arranged to achieve heat exchange between the cooling liquid loop and the air conditioning system, the radiator, the heat exchanger water path, the battery, the motor and the heating water path are connected in parallel, the first control valve controls different flowing directions of cooling liquid, switching of multiple modes of the heat management system can be achieved, the number of parts is small, and the production cost is reduced.

Description

Technical Field

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

[0002] In the related art, many new energy vehicles have problems with insufficient battery power. In order to save power, automobile air-conditioning manufacturers install heat pump systems in vehicles to reduce the power consumption during air-conditioning heating. At the same time, to meet the diverse needs of consumers, there are multiple mode switches in the heat pump air-conditioning system. To achieve better connection of multiple modes, a water circuit matching the air-conditioning system needs to be set in the vehicle to achieve the balance of the whole vehicle thermal management.

[0003] However, the existing cooperation scheme between the water circuit and the air-conditioning system is relatively complex, the number of component connections is large, the production cost is high, and the conversion of various working modes is not convenient enough. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a thermal management system, which can realize multiple mode switches of the thermal management system, has a simple structure and fewer components, and reduces the production cost.

[0005] The utility model also provides a vehicle.

[0006] The thermal management system according to the first aspect embodiment of the utility model includes: a radiator, a heat exchanger water circuit, a battery, a motor and a heating water circuit, and the radiator, the heat exchanger water circuit, the battery, the motor and the heating water circuit are connected in parallel with each other; the thermal management system further includes: a first control valve, on which a first valve port, a second valve port and a third valve port are arranged, the first valve port is communicated with the first end of the heating water circuit, the second valve port is communicated with the second end of the heating water circuit and the second end of the battery, and the third valve port is communicated with the second end of the radiator and the second end of the motor.

[0007] According to the thermal management system of the embodiment of the utility model, a heat exchanger water circuit and a heating water circuit are set to realize the heat exchange between the coolant circuit and the air-conditioning system, and the radiator, the heat exchanger water circuit, the battery, the motor and the heating water circuit are connected in parallel with each other. The first control valve controls the different flow directions of the coolant, so that multiple mode switches of the thermal management system can be realized, the structure is simple, the number of components is small, and the production cost is reduced.

[0008] According to some embodiments of the utility model, the thermal management system further includes: a first branch, one end of the first branch is communicated with the first end of the radiator, and the other end of the first branch is communicated with the first end of the heating water circuit.

[0009] According to some embodiments of the present utility model, the thermal management system further includes: a check valve, and the check valve is disposed on the first branch.

[0010] According to some embodiments of the present utility model, the thermal management system further includes: a control valve group, and the control valve group is respectively communicated with the second end of the radiator, the second end of the heating water circuit, the second end of the battery, the second end of the motor, and the second end of the heat exchanger water circuit.

[0011] According to some embodiments of the present utility model, the control valve group includes: a second control valve, and the second control valve is provided with a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port is respectively communicated with the second end of the radiator and the third valve port of the first control valve. The fifth valve port is respectively communicated with the second end of the heat exchanger water circuit and the second end of the battery. The sixth valve port is communicated with the second end of the motor. And, the control valve group further includes: a third control valve, and the third control valve is provided with a seventh valve port, an eighth valve port, and a ninth valve port. The seventh valve port is respectively communicated with the second end of the motor and the second end of the heat exchanger water circuit. The eighth valve port is communicated with the second end of the heating water circuit. The ninth valve port is communicated with the second end of the battery.

[0012] According to some embodiments of the present utility model, the control valve group further includes: a fourth control valve, and the fourth control valve is provided with a tenth valve port and an eleventh valve port. The tenth valve port is communicated with the second end of the heat exchanger water circuit, and the eleventh valve port is respectively communicated with the fifth valve port of the second control valve and the seventh valve port of the third control valve.

[0013] According to some embodiments of the present utility model, the control valve group is a multi-way valve.

[0014] According to some embodiments of the present utility model, the heating water circuit includes: a condenser, an electric heater, and a heater core. The condenser, the electric heater, and the heater core are connected in series with each other, and the refrigerant flows between the condenser and the air conditioning system.

[0015] According to some embodiments of the present utility model, the thermal management system further includes: a first water pump, and the first water pump is disposed between the first end of the radiator and the first end of the motor. And, the thermal management system further includes: a second water pump, and the second water pump is disposed on the heat exchanger water circuit. And, the thermal management system further includes: a third water pump, and the third water pump is disposed between the second end of the heating water circuit and the first control valve.

[0016] A vehicle according to an embodiment of the second aspect of the present utility model includes the thermal management system.

[0017] Compared with the traditional technology, this embodiment utilizes the heat exchanger water circuit and the heating water circuit to achieve the heat exchange between the coolant circuit and the air conditioning system. The radiator, the heat exchanger water circuit, the battery, the motor, and the heating water circuit are connected in parallel with each other. The first control valve and the control valve group control the different flow directions of the coolant, enabling convenient switching among multiple modes of the thermal management system. The structure is simple with fewer components, reducing production costs and achieving higher efficiency in refrigeration and heating.

[0018] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0020] Figure 1 is a schematic diagram of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0021] Figure 2 is a circuit schematic diagram of the first mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0022] Figure 3 is a circuit schematic diagram of the second mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0023] Figure 4 is a circuit schematic diagram of the third mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0024] Figure 5 is a circuit schematic diagram of the fourth mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0025] Figure 6 is a circuit schematic diagram of the fifth mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0026] Figure 7 is a circuit schematic diagram of the sixth mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0027] Figure 8 is a circuit schematic diagram of the seventh mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0028] Figure 9 is a circuit schematic diagram of the eighth mode of the first embodiment of the thermal management system according to the embodiment of the present utility model;

[0029] Figure 10It is a schematic diagram of the circuit of the ninth mode of Embodiment 1 of the thermal management system according to an embodiment of the present invention;

[0030] Figure 11 It is a schematic diagram of the circuit of the tenth mode of Embodiment 1 of the thermal management system according to an embodiment of the present invention;

[0031] Figure 12 It is a schematic diagram of the circuit of the eleventh mode of Embodiment 1 of the thermal management system according to an embodiment of the present invention;

[0032] Figure 13 It is a schematic diagram of Embodiment 2 of the thermal management system according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 100, thermal management system;

[0035] 10, radiator;

[0036] 20, heat exchanger waterway; 21, heat exchanger;

[0037] 30, heating waterway; 31, condenser; 32, electric heater; 33, heater core;

[0038] 40, first branch; 41, check valve;

[0039] 51, battery; 52, motor; 53, first control valve; 54, second control valve; 55, third control valve; 56, fourth control valve; 57, first water pump; 58, second water pump; 59, third water pump; 60, multi-way valve; 61, control valve group. Detailed implementation manners

[0040] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0041] Below, reference is made to Figures 1 - 13 Describe the thermal management system 100 according to an embodiment of the present invention, and the present invention also proposes a vehicle.

[0042] Refer to Figure 1As shown in the figure, the thermal management system 100 of the embodiment of the present utility model includes: a radiator 10, a heat exchanger water circuit 20, a battery 51, a motor 52, and a heating water circuit 30. The radiator 10, the heat exchanger water circuit 20, the battery 51, the motor 52, and the heating water circuit 30 are connected in parallel with each other. Among them, the coolant flows through the radiator 10. The radiator 10 can exchange heat with the outside air to reduce the temperature of the coolant flowing through the radiator 10. The radiator 10 is connected in parallel with the motor 52 and the battery 51, which can prevent the motor 52, the battery 51, and other electrical appliances from being in a high-temperature state for a long time, affecting the driving performance of the vehicle.

[0043] The coolant flows through the heat exchanger water circuit 20. The coolant in the heat exchanger water circuit 20 can flow to the motor 52 or the battery 51. The motor 52 converts electrical energy into mechanical energy to drive the vehicle to move, and the battery 51 can provide electrical energy for the vehicle. The heat exchanger water circuit 20 includes a heat exchanger 21. The coolant flowing through the heat exchanger 21 can exchange heat with the refrigerant in the air-conditioning system. For example, the heat exchanger 21 exchanges heat with the low-temperature refrigerant in the air-conditioning system, thereby reducing the temperature of the coolant flowing through the heat exchanger 21. The cooled coolant can cool the battery 51 and the motor 52, and can also absorb the heat generated by the operation of the motor 52 for heating the passenger compartment.

[0044] The coolant flows through the heating water circuit 30. At the same time, the heating water circuit 30 can also exchange heat with the refrigerant in the air-conditioning system to adjust the temperature of the coolant flowing through the heating water circuit 30, realize various working modes in the thermal management system 100, and improve the comfort requirements of passengers. In this embodiment, heat is mainly transferred from the high-temperature refrigerant in the air-conditioning system to the heating water circuit 30 by exchanging heat between the heating water circuit 30 and the high-temperature refrigerant in the air-conditioning system.

[0045] The thermal management system 100 further includes: a first control valve 53. The first control valve 53 is provided with a first valve port, a second valve port, and a third valve port. The first valve port is communicated with the first end of the heating water circuit 30, the second valve port is communicated with the second end of the heating water circuit 30 and the second end of the battery 51, and the third valve port is communicated with the second end of the radiator 10 and the second end of the motor 52. Specifically, the first valve port is the Figures 1 - 12 a port in Figures 1 - 12 The second valve port is the Figures 1 - 12 b port in Figure 1 The third valve port is the Figures 1 - 12 c port in Figure 1 As shown in the figure, the first end of the heating water circuit 30 is the input end of the coolant of the heating water circuit 30, the second end of the heating water circuit 30 is the output end of the coolant of the heating water circuit 30. The coolant at the battery 51 can flow bidirectionally. The end closer to the output end of the heating water circuit 30 is the second end of the battery 51. The second end of the radiator 10 is the input end of the coolant of the radiator 10, and the second end of the motor 52 is the output end of the coolant of the motor 52.

[0046] When the first control valve 53 connects the first valve port and the second valve port, the coolant circulates in the heating water circuit 30, and heat exchange with the air conditioning system can increase the temperature of the passenger compartment.

[0047] When the first control valve 53 connects the second valve port and the third valve port, the heating water circuit 30 can be connected to the radiator 10 or the motor 52. When the heating water circuit 30 is connected to the radiator 10, it absorbs the heat of the refrigerant in the air conditioning system and transfers the heat to the coolant. The high-temperature coolant dissipates the heat to the outside through the radiator 10, achieving heat balance in the thermal management system 100.

[0048] Therefore, by setting the heat exchanger water circuit 20 and the heating water circuit 30, heat exchange between the coolant circuit and the air conditioning system is achieved. And through the radiator 10, the heat exchanger water circuit 20, the battery 51, the motor 52, and the heating water circuit 30 being connected in parallel with each other, and the first control valve 53 controlling the different flow directions of the coolant, multiple mode switches of the thermal management system 100 can be realized. The structure is simple and the number of components is small, reducing production costs.

[0049] The thermal management system 100 further includes: a first branch 40, one end of the first branch 40 is connected to the first end of the radiator 10, and the other end of the first branch 40 is connected to the first end of the heating water circuit 30. The thermal management system 100 further includes: a check valve 41, and the check valve 41 is arranged in the first branch 40.

[0050] When the second valve port and the third valve port of the first control valve 53 are connected, the first branch 40 connects the radiator 10 and the heating water circuit 30, and the check valve 41 allows the coolant to enter the heating water circuit 30 through the first branch 40. When the second valve port and the third valve port of the first control valve 53 are not connected, the check valve 41 can prevent the coolant in other circuits from flowing into the first branch 40, improving the reliability and safety of the thermal management system 100.

[0051] The thermal management system 100 further includes: a control valve group 61, and the control valve group 61 is respectively connected to the second end of the radiator 10, the second end of the heating water circuit 30, the second end of the battery 51, the second end of the motor 52, and the second end of the heat exchanger water circuit 20. By setting the control valve group 61, the connection or disconnection of the radiator 10, the motor 52, the heat exchange water circuit, and the battery 51 can be controlled to achieve multiple working modes.

[0052] The control valve group 61 includes: a second control valve 54, and the second control valve 54 is provided with a fourth valve port, a fifth valve port, and a sixth valve port. The fourth valve port is respectively connected to the second end of the radiator 10 and the third valve port of the first control valve 53. The fifth valve port is respectively connected to the second end of the heat exchanger water circuit 20 and the second end of the battery 51. The third valve port is connected to the second end of the motor 52. Specifically, the fourth valve port is Figures 1 - 12 the d port in Figures 1 - 12the E port in it, and the sixth valve port is Figures 1 - 12 the F port in it, refer to Figure 1 As shown, the second end of the radiator 10 is the input end of the coolant of the radiator 10, the second end of the heat exchanger waterway 20 is the input end of the coolant of the heat exchanger waterway 20, the coolant at the battery 51 can flow bidirectionally, and the end closer to the output end of the heating waterway 30 is the second end of the battery 51, and the second end of the motor 52 is the output end of the coolant of the motor 52.

[0053] When the second control valve 54 connects the fourth valve port and the fifth valve port, the radiator 10 can be connected to the battery 51, and the coolant transfers the heat generated by the battery 51 to the radiator 10, and dissipates the heat through heat exchange between the radiator 10 and the outside air, realizing the cooling of the battery 51.

[0054] When the second control valve 54 connects the fourth valve port and the sixth valve port, the radiator 10 can be connected to the motor 52, and the coolant transfers the heat generated by the motor 52 to the radiator 10, and dissipates the heat through heat exchange between the radiator 10 and the outside air, realizing the cooling of the motor 52.

[0055] When the second control valve 54 connects the fifth valve port and the sixth valve port, the motor 52 can be connected to the heat exchange waterway, the heat exchanger 21 absorbs the heat generated by the motor 52 in the coolant, and exchanges heat with the low-temperature refrigerant in the air-conditioning system, and the temperature of the refrigerant rises, which can realize the heating of the passenger compartment.

[0056] And, the control valve group 61 further includes: a third control valve 55, on which a seventh valve port, an eighth valve port and a ninth valve port are provided. The seventh valve port is respectively connected to the second end of the motor 52 and the second end of the heat exchanger waterway 20, the eighth valve port is respectively connected to the second end of the heating waterway 30, and the ninth valve port is connected to the second end of the battery 51. Specifically, the seventh valve port is Figures 1 - 12 the G port in it, the eighth valve port is Figures 1 - 12 the H port in it, the ninth valve port is Figures 1 - 12 the I port in it, refer to Figure 1 As shown, the second end of the motor 52 is the output end of the coolant of the motor 52, the second end of the heat exchanger waterway 20 is the input end of the coolant of the heat exchanger waterway 20, the second end of the heating waterway 30 is the output end of the coolant of the heating waterway 30, the coolant at the battery 51 can flow bidirectionally, and the end closer to the third control valve 55 is the second end of the battery 51.

[0057] When the third control valve 55 connects the seventh valve port and the ninth valve port, and at the same time the second control valve 54 connects the fourth valve port and the fifth valve port, the radiator 10 can be connected to the battery 51. The coolant transfers the heat generated by the battery 51 to the radiator 10, and dissipates the heat through heat exchange between the radiator 10 and the outside air, realizing the cooling of the battery 51. When only the third control valve 55 connects the seventh valve port and the ninth valve port, the battery 51 is connected to the heat exchange water circuit, the heat exchanger 21 exchanges heat with the low-temperature refrigerant in the air-conditioning system, and the low-temperature coolant flows through the battery 51 to realize the cooling of the battery 51.

[0058] When the third control valve 55 connects the eighth valve port and the ninth valve port, the battery 51 can be connected to the heating water circuit 30. The heating water circuit 30 exchanges heat with the high-temperature refrigerant in the air-conditioning system, and the high-temperature coolant flows through the battery 51 to heat the battery 51.

[0059] The control valve group 61 further includes: a fourth control valve 56. The fourth control valve 56 is provided with a tenth valve port and an eleventh valve port. The tenth valve port is connected to the second end of the heat exchanger water circuit 20, and the eleventh valve port is connected to the fifth valve port of the second control valve 54 and the seventh valve port of the third control valve 55. Specifically, the tenth valve port is the Figures 1 - 12 j port in Figures 1 - 12 , and the eleventh valve port is the Figure 1 k port in

[0060] Referring to

[0061] As shown in Figure 13 , the control valve group 61 can also be a multi-way valve 60. The multi-way valve 60 integrates multiple control functions in one valve body, reducing the complexity of the circuit and the number of connection points, occupying less space than multiple independent control valves, reducing the number of components, reducing manufacturing and maintenance costs, and moreover, the control of the thermal management system 100 can be realized through one multi-way valve 60, simplifying the control logic and control circuit of the thermal management system 100, and making the conversion of various working modes more convenient.

[0062] Referring to Figure 13 As shown in Figure 13 , in this embodiment, the multi-way valve 60 can be a five-way valve, and the five valve ports respectively correspond to the

[0063] Among them, the heating water circuit 30 includes: a condenser 31, an electric heater 32, and a heater core 33. The condenser 31, the electric heater 32, and the heater core 33 are connected in series with each other, and the refrigerant circulates between the condenser 31 and the air-conditioning system.

[0064] The refrigerant exchanges heat with the coolant at the condenser 31, so that the coolant can absorb the heat of the high-temperature refrigerant in the air-conditioning system. Specifically, the refrigerant flows out of the compressor, releases heat at the condenser 31, the refrigerant that has released heat absorbs heat at the evaporator, and finally returns to the compressor. When refrigerating, the refrigerant absorbs the heat of the passenger compartment, and the coolant flowing through the condenser 31 releases the heat to the heating water circuit 30.

[0065] The condenser 31, the electric heater 32, and the heater core 33 are connected in series in sequence. Among them, the condenser 31 can be an air-cooled condenser 31, the electric heater 32 can be a PTC, the electric heater 32 can assist in heating the coolant in the heating water circuit 30, and the heater core 33 can transfer the heat in the coolant to the passenger compartment to heat the passenger compartment. Moreover, using the condenser 31 to transfer heat to the heater core 33 to discharge the heat of the air-conditioning system can reduce the temperature of the refrigerant and improve the refrigeration capacity of the air-conditioning system.

[0066] The thermal management system 100 further includes: a first water pump 57, which is arranged between the first end of the radiator 10 and the first end of the motor 52; and, the thermal management system 100 further includes: a second water pump 58, which is arranged on the heat exchanger water circuit 20; and, the thermal management system 100 further includes: a third water pump 59, which is arranged between the second end of the heating water circuit 30 and the first control valve 53. The first water pump 57, the second water pump 58, and the third water pump 59 are used to promote the circulation of the coolant in different circuits. The water pumps ensure that the heat inside the circuits is continuously taken away, maintaining the normal working temperature of the thermal management system 100. Through continuous circulation, it helps to keep the temperature evenly distributed throughout the thermal management system 100 and prevent local overheating or uneven temperature.

[0067] The following combines Figures 2 - 12 to describe eleven modes of the thermal management system 100.

[0068] The first mode:

[0069] As Figure 2 shown, the second control valve 54 controls the fourth valve port and the sixth valve port to communicate, and the rest of the control valves and their valve ports are all closed.

[0070] The coolant circulation loop is as follows: the first water pump 57 → the motor 52 → the second control valve 54 → the radiator 10 → the first water pump 57. The coolant transfers the heat generated by the motor 52 to the radiator 10. The high-temperature coolant at the radiator 10 exchanges heat with the outside air, the temperature of the coolant decreases, and the low-temperature coolant returns to the motor 52 through the first water pump 57, enabling natural cooling of the motor 52.

[0071] Second mode:

[0072] As Figure 3 shown, the fourth valve port and the fifth valve port of the second control valve 54 are connected, the fourth valve port and the sixth valve port are connected, the seventh valve port and the ninth valve port of the third control valve 55 are connected, and the remaining control valves and valve ports are closed.

[0073] The first coolant circulation loop is as follows: the first water pump 57 → the motor 52 → the second control valve 54 → the radiator 10 → the first water pump 57. The coolant transfers the heat generated by the motor 52 to the radiator 10. The high-temperature coolant at the radiator 10 exchanges heat with the outside air, the temperature of the coolant decreases, and the low-temperature coolant returns to the motor 52 through the first water pump 57, enabling natural cooling of the motor 52.

[0074] The second coolant circulation loop is as follows: the first water pump 57 → the battery 51 → the third control valve 55 → the second control valve 54 → the radiator 10 → the first water pump 57. The coolant transfers the heat generated by the battery 51 to the radiator 10. The high-temperature coolant at the radiator 10 exchanges heat with the outside air, the temperature of the coolant decreases, and the low-temperature coolant returns to the battery through the first water pump 57, enabling natural cooling of the battery 51.

[0075] Third mode:

[0076] As Figure 4 shown, the second valve port and the third valve port of the first control valve 53 are connected, the one-way valve 41 is opened, and the remaining control valves and valve ports are closed.

[0077] The coolant circulation loop is as follows: the third water pump 59 → the first control valve 53 → the radiator 10 → the one-way valve 41 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant then exchanges heat with the outside air through the radiator 10, releasing the heat to the outside. At the same time, the temperature of the refrigerant in the air-conditioning system decreases, enabling cooling of the passenger compartment. The radiator 10 releases the heat to the external environment to maintain the heat balance of the thermal management system 100.

[0078] Among them, the electric heater 32 and the heater core 33 in the heating water circuit 30 do not work, which does not affect the operation of the mode.

[0079] Fourth Mode:

[0080] As Figure 5 shown, the seventh valve port and the ninth valve port of the third control valve 55 are connected, the second valve port and the third valve port of the first control valve 53 are connected, the fourth control valve 56 and the check valve 41 are opened, and the remaining control valves and valve ports are closed.

[0081] The first coolant circulation loop is: the third water pump 59 → the first control valve 53 → the radiator 10 → the check valve 41 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, and the temperature of the coolant rises. The high-temperature coolant then exchanges heat with the outside air through the radiator 10, releasing the heat to the outside. At the same time, the temperature of the refrigerant in the air-conditioning system drops, enabling the passenger compartment to be cooled. The radiator 10 releasing heat to the external environment can maintain the heat balance of the thermal management system 100. Among them, the electric heater 32 and the heater core 33 in the heating water circuit 30 do not work and do not affect the mode operation.

[0082] The second coolant circulation loop is: the second water pump 58 → the heat exchanger 21 → the battery 51 → the third control valve 55 → the fourth control valve 56 → the second water pump 58. Driven by the second water pump 58, the coolant takes the heat generated by the battery 51 to the heat exchanger 21. The high-temperature coolant exchanges heat with the low-temperature refrigerant in the air-conditioning system, and the temperature of the coolant drops and returns to the battery 51, thereby cooling the battery 51.

[0083] Fifth Mode:

[0084] As Figure 6 shown, the second valve port and the third valve port of the first control valve 53 are connected, the fourth valve port and the sixth valve port of the second control valve 54 are connected, the seventh valve port and the ninth valve port of the third control valve 55 are connected, the fourth control valve 56 and the check valve 41 are opened, and the remaining valve ports are closed.

[0085] The first coolant circulation loop is: the third water pump 59 → the first control valve 53 → the radiator 10 → the check valve 41 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, and the temperature of the coolant rises. The high-temperature coolant then exchanges heat with the outside air through the radiator 10, releasing the heat to the outside. At the same time, the temperature of the refrigerant in the air-conditioning system drops, enabling the passenger compartment to be cooled. The radiator 10 releasing heat to the external environment can maintain the heat balance of the thermal management system 100. Among them, the electric heater 32 and the heater core 33 in the heating water circuit 30 do not work and do not affect the mode operation.

[0086] The second coolant circulation loop is: the second water pump 58 → the heat exchanger 21 → the battery 51 → the third control valve 55 → the fourth control valve 56 → the second water pump 58. Driven by the second water pump 58, the coolant takes the heat generated by the battery 51 to the heat exchanger 21. The high-temperature coolant exchanges heat with the low-temperature refrigerant in the air-conditioning system, and the temperature of the coolant decreases and then returns to the battery 51, thereby cooling the battery 51.

[0087] The third coolant circulation loop is: the first water pump 57 → the motor 52 → the second control valve 54 → the radiator 10 → the first water pump 57. The coolant transfers the heat generated by the motor 52 to the radiator 10. The high-temperature coolant at the radiator 10 exchanges heat with the outside air, the temperature of the coolant decreases, and the low-temperature coolant returns to the motor 52 through the first water pump 57, enabling natural cooling of the motor 52.

[0088] Sixth mode:

[0089] As Figure 7 shown, the first valve port and the second valve port of the first control valve 53 are connected, and the other control valves and valve ports are closed.

[0090] The coolant circulation loop is: the third water pump 59 → the first control valve 53 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant transfers the heat to the heater core 33, thereby heating the passenger compartment. The electric heater 32 can supplement heat to the coolant in the loop, further increasing the temperature of the passenger compartment and improving the heating efficiency.

[0091] Seventh mode:

[0092] As Figure 8 shown, the first valve port and the second valve port of the first control valve 53 are connected, the second control valve 54 controls the connection between the fifth valve port and the sixth valve port, the fourth control valve 56 is opened, and the other control valves and valve ports are closed.

[0093] The first coolant circulation loop is: the third water pump 59 → the first control valve 53 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant transfers the heat to the heater core 33, thereby heating the passenger compartment. The electric heater 32 can supplement heat to the coolant in the loop, further increasing the temperature of the passenger compartment and improving the heating efficiency.

[0094] The second coolant circulation loop is: the second water pump 58 → the heat exchanger 21 → the motor 52 → the second control valve 54 → the fourth control valve 56 → the second water pump 58. The coolant at the heat exchanger 21 exchanges heat with the low-temperature refrigerant of the air-conditioning system, the temperature of the coolant decreases, the low-temperature coolant absorbs the heat generated by the motor 52, and when it circulates back to the heat exchanger 21 to exchange heat, it provides heat for the air-conditioning system, and the temperature of the refrigerant increases, thereby heating the passenger compartment.

[0095] The eighth mode:

[0096] As Figure 9 shown, the third control valve 55 controls the eighth valve port and the ninth valve port to communicate, and the rest of the control valves and valve ports are closed.

[0097] The coolant circulation loop is: the third water pump 59 → the third control valve 55 → the battery 51 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant rises, and the high-temperature coolant transfers the heat to the battery 51, thereby heating the battery 51. The electric heater 32 can assist in heating the coolant in the loop, thereby increasing the temperature of the battery 51 and improving the heating efficiency of the battery 51.

[0098] The ninth mode:

[0099] As Figure 10 shown, the first control valve 53 controls the first valve port and the second valve port to communicate, the third control valve 55 controls the eighth valve port and the ninth valve port to communicate, and the rest of the control valves and valve ports are closed.

[0100] The first coolant circulation loop is: the third water pump 59 → the third control valve 55 → the battery 51 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant rises, and the high-temperature coolant transfers the heat to the battery 51, thereby heating the battery 51. The electric heater 32 can assist in heating the coolant in the loop, thereby increasing the temperature of the battery 51 and improving the heating efficiency of the battery 51.

[0101] The second coolant circulation loop is: the third water pump 59 → the first control valve 53 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant transfers the heat to the heater core 33, thereby heating the passenger compartment. The electric heater 32 can assist in heating the coolant in the loop, further increasing the temperature of the passenger compartment and improving the heating efficiency.

[0102] The tenth mode:

[0103] As Figure 11As shown, the first control valve 53 controls the communication between the first valve port and the second valve port, the second control valve 54 controls the communication between the fifth valve port and the sixth valve port, the third control valve 55 controls the communication between the eighth valve port and the ninth valve port, the fourth control valve 56 is opened, the one-way valve 41 is closed and the valve ports are closed.

[0104] The first coolant circulation loop is: the third water pump 59 → the third control valve 55 → the battery 51 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant rises, and the high-temperature coolant transfers heat to the battery 51, thereby heating the battery 51. The electric heater 32 can assist in heating the coolant in the loop, thereby increasing the temperature of the battery 51 and improving the heating efficiency of the battery 51.

[0105] The second coolant circulation loop is: the third water pump 59 → the first control valve 53 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant transfers heat to the heater core 33, thereby heating the passenger compartment. The electric heater 32 can assist in heating the coolant in the loop, further increasing the temperature of the passenger compartment and improving the heating efficiency.

[0106] The third coolant circulation loop is: the second water pump 58 → the heat exchanger 21 → the motor 52 → the second control valve 54 → the fourth control valve 56 → the second water pump 58. The coolant at the heat exchanger 21 exchanges heat with the low-temperature refrigerant in the air-conditioning system, the temperature of the coolant decreases, and the low-temperature coolant absorbs the heat generated by the motor 52. When it circulates back to the heat exchanger 21 to exchange heat, it provides heat for the air-conditioning system, and the temperature of the refrigerant rises, thereby heating the passenger compartment and the battery 51.

[0107] The eleventh mode:

[0108] As Figure 12 shown, the first control valve 53 controls the communication between the first valve port and the second valve port, the third control valve 55 controls the communication between the seventh valve port and the eighth valve port, the fourth control valve 56 is opened, and the other control valves and valve ports are closed.

[0109] The first coolant circulation loop is: the third water pump 59 → the first control valve 53 → the condenser 31 → the electric heater 32 → the heater core 33 → the third water pump 59. The low-temperature coolant at the condenser 31 exchanges heat with the high-temperature refrigerant in the air-conditioning system, the temperature of the coolant increases, and the high-temperature coolant transfers heat to the heater core 33, thereby heating the passenger compartment. The electric heater 32 can assist in heating the coolant in the loop, further increasing the temperature of the passenger compartment and improving the heating efficiency.

[0110] The second coolant circulation loop is: the second water pump 58 → the heat exchanger 21 → the battery 51 → the third control valve 55 → the fourth control valve 56 → the second water pump 58. Driven by the second water pump 58, the coolant carries the heat generated by the battery 51 to the heat exchanger 21. The high-temperature coolant exchanges heat with the low-temperature refrigerant in the air-conditioning system, and the temperature of the coolant decreases and then returns to the battery 51, thereby cooling the battery 51.

[0111] The vehicle according to the second aspect embodiment of the present invention includes a thermal management system 100.

[0112] In the description of the present invention, it should be understood that the orientation or positional relationship 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", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0113] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0114] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A thermal management system, characterized in that, Comprising: A radiator (10), a heat exchanger water circuit (20), a battery (51), an electric motor (52), and a heating water circuit (30), where the radiator (10), the heat exchanger water circuit (20), the battery (51), the electric motor (52), and the heating water circuit (30) are connected in parallel with each other; Further comprising: a first control valve (53), on which a first valve port, a second valve port, and a third valve port are provided. The first valve port is communicated with the first end of the heating water circuit (30), the second valve port is communicated with the second end of the heating water circuit (30) and the second end of the battery (51), and the third valve port is communicated with the second end of the radiator (10) and the second end of the electric motor (52).

2. The thermal management system according to claim 1, characterized in that, Further comprising: A first branch (40), one end of the first branch (40) is communicated with the first end of the radiator (10), and the other end of the first branch (40) is communicated with the first end of the heating water circuit (30).

3. The thermal management system according to claim 2, characterized in that, Further comprising: A check valve (41), which is arranged on the first branch (40).

4. The thermal management system according to claim 1, characterized in that, Further comprising: A control valve group (61), which is respectively communicated with the second end of the radiator (10), the second end of the heating water circuit (30), the second end of the battery (51), the second end of the electric motor (52), and the second end of the heat exchanger water circuit (20).

5. The thermal management system according to claim 4, wherein The control valve group (61) includes: a second control valve (54), on which a fourth valve port, a fifth valve port, and a sixth valve port are provided. The fourth valve port is respectively communicated with the second end of the radiator (10) and the third valve port of the first control valve (53), the fifth valve port is respectively communicated with the second end of the heat exchanger water circuit (20) and the second end of the battery (51), and the sixth valve port is communicated with the second end of the electric motor (52); and, The control valve group (61) further includes: a third control valve (55), on which a seventh valve port, an eighth valve port, and a ninth valve port are provided. The seventh valve port is respectively communicated with the second end of the electric motor (52) and the second end of the heat exchanger water circuit (20), the eighth valve port is communicated with the second end of the heating water circuit (30), and the ninth valve port is communicated with the second end of the battery (51).

6. The thermal management system according to claim 5, characterized in that, The control valve group (61) further includes: a fourth control valve (56), on which a tenth valve port and an eleventh valve port are provided. The tenth valve port is communicated with the second end of the heat exchanger water circuit (20), and the eleventh valve port is respectively communicated with the fifth valve port of the second control valve (54) and the seventh valve port of the third control valve (55).

7. The thermal management system according to claim 4, characterized in that, The control valve group (61) is a multi-way valve (60).

8. The thermal management system according to claim 1, wherein The heating water circuit (30) includes: a condenser (31), an electric heater (32), and a heater core (33), where the condenser (31), the electric heater (32), and the heater core (33) are connected in series, and the refrigerant circulates between the condenser (31) and the air conditioning system.

9. The thermal management system according to claim 1, characterized in that, Further comprising: A first water pump (57), the first water pump (57) being disposed between a first end of the radiator (10) and a first end of the motor (52); And, The thermal management system further includes: a second water pump (58), the second water pump (58) being disposed on the heat exchanger water circuit (20); and, The thermal management system further includes: A third water pump (59), the third water pump (59) being disposed between a second end of the heating water circuit (30) and the first control valve (53).

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

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