CN119858418B - Thermal management systems and vehicles - Google Patents

Thermal management systems and vehicles

Info

Publication number
CN119858418B
CN119858418B CN202411989125.1A CN202411989125A CN119858418B CN 119858418 B CN119858418 B CN 119858418B CN 202411989125 A CN202411989125 A CN 202411989125A CN 119858418 B CN119858418 B CN 119858418B
Authority
CN
China
Prior art keywords
control valve
communicated
heat exchange
condenser
loop
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202411989125.1A
Other languages
Chinese (zh)
Other versions
CN119858418A (en
Inventor
刘立朋
赵林晨
胡康
赵子健
李超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Great Wall Motor Co Ltd
Original Assignee
Great Wall Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Great Wall Motor Co Ltd filed Critical Great Wall Motor Co Ltd
Priority to CN202411989125.1A priority Critical patent/CN119858418B/en
Publication of CN119858418A publication Critical patent/CN119858418A/en
Application granted granted Critical
Publication of CN119858418B publication Critical patent/CN119858418B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

本发明公开了一种热管理系统和车辆，热管理系统包括：空调系统；第一控制阀，第一控制阀上连通有高压换热回路、电池换热回路、散热器回路和换热器回路，第一控制阀选择性地连通高压换热回路、电池换热回路、散热器回路、换热器回路中的一个或多个；空调系统与换热器回路以及采暖回路换热；多通管，多通管的至少两端和第一控制阀连通，多通管的再一端与电池换热回路连通；冷凝器，冷凝器的一端选择性地与多通管的又一端连通，冷凝器的另一端与第一控制阀连通；其中，通过第一控制阀和多通管连通多个回路，降低各工作模式下的流阻，提高能源利用率，优化热泵或采暖回路的能量利用效率。

The present invention discloses a thermal management system and a vehicle, which includes: an air-conditioning system; a first control valve, wherein a high-pressure heat exchange circuit, a battery heat exchange circuit, a radiator circuit and a heat exchange circuit are connected to the first control valve, and the first control valve selectively connects one or more of the high-pressure heat exchange circuit, the battery heat exchange circuit, the radiator circuit and the heat exchange circuit; the air-conditioning system exchanges heat with the heat exchange circuit and the heating circuit; a multi-way pipe, wherein at least two ends of the multi-way pipe are connected to the first control valve, and another end of the multi-way pipe is connected to the battery heat exchange circuit; a condenser, wherein one end of the condenser is selectively connected to another end of the multi-way pipe, and the other end of the condenser is connected to the first control valve; wherein multiple circuits are connected by the first control valve and the multi-way pipe, the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of the heat pump or heating circuit is optimized.

Description

Thermal management system and vehicle
Technical Field
The invention relates to the technical field of vehicle thermal management, in particular to a thermal management system and a vehicle.
Background
Along with the rapid development of the pure electric automobile industry in China, the integration level of the whole vehicle control system is higher and higher, the 800V high-voltage system is higher in efficiency and faster in charging, and the thermal management system is continuously improved towards the high-efficiency and energy-saving directions. Heat pump systems have been widely used, waste heat of motors is reasonably utilized, battery cooling and heating modes are diversified, and finally, the thermal management system architecture of each vehicle model is complicated and diversified.
Because the pure electric vehicle systems and the parts thereof have different optimal working temperature ranges due to different properties and design requirements, the parts are maintained in a proper temperature range by external auxiliary means, and the normal, stable and efficient working of the parts and the comfort requirements of passengers are ensured. In a pure electric vehicle, since a large amount of heat is generated when the battery works, and the performance and the service life of the battery are closely related to temperature, an efficient and intelligent thermal management architecture is very important.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a thermal management system, which is communicated with a plurality of loops through the first control valve and the multi-way pipe, so that the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of a heat pump or a heating loop is optimized.
The invention further proposes a vehicle.
A thermal management system according to an embodiment of a first aspect of the invention comprises an air conditioning system, a first control valve, a condenser and a first control valve, wherein the first control valve is communicated with a high-pressure heat exchange loop, a battery heat exchange loop, a radiator loop and a heat exchanger loop, one or more of the high-pressure heat exchange loop, the battery heat exchange loop, the radiator loop and the heat exchanger loop are selectively communicated with the first control valve, the air conditioning system exchanges heat with the heat exchanger loop and a heating loop, at least two ends of the multi-way pipe are communicated with the first control valve, one end of the multi-way pipe is selectively communicated with one end of the multi-way pipe, and the other end of the condenser is communicated with the first control valve.
According to the thermal management system provided by the embodiment of the invention, the first control valve and the multi-way pipe are communicated with the loops, so that the flow resistance in each working mode is reduced, the energy utilization rate is improved, and the energy utilization efficiency of the heat pump or the heating loop is optimized.
According to some embodiments of the invention, the multi-way pipe comprises a first pipe orifice and a second pipe orifice, and the thermal management system further comprises a first branch and a second branch, wherein the first branch is connected between the first pipe orifice and one valve port of the first control valve, one end of the second branch is communicated with the second pipe orifice, and the other end of the second branch is communicated with the battery heat exchange loop.
According to some embodiments of the invention, the thermal management system further comprises a third leg having one end in communication with the third orifice and the other end in selective communication with one end of the condenser and a fourth leg having one end in communication with the fourth orifice and the other end in communication with the first control valve.
According to some embodiments of the invention, the fourth branch is provided with a first check valve and a second check valve, one end of the first check valve is communicated with the fourth pipe port, the other end of the first check valve is communicated with one end of the second check valve, and the other end of the second check valve is communicated with the first control valve;
according to some embodiments of the invention, the thermal management system further comprises a fifth branch, one end of the fifth branch is communicated with the first control valve, and the other end of the fifth branch is communicated with one end of the second check valve.
According to some embodiments of the invention, the thermal management system further comprises a sixth leg having one end in communication with the first control valve and another end in communication with one end of the heat exchanger loop.
According to some embodiments of the invention, the thermal management system further comprises a first shut-off valve having one end in communication with one end of the battery heat exchange circuit and the other end in communication with one end of the heat exchanger circuit.
According to some embodiments of the invention, the heating loop comprises a condenser, an electric heater and a warm air core, wherein the electric heater and the condenser are connected in series, one end of the condenser is selectively communicated with one end of the multi-way pipe and one end of the warm air core, the other end of the condenser is communicated with one end of the electric heater, and the other end of the electric heater is communicated with the other end of the warm air core and the first control valve.
According to some embodiments of the invention, the thermal management system further comprises a second control valve, one end of the second control valve is communicated with one end of the condenser, the other end of the second control valve is communicated with the multi-way pipe, and the other end of the second control valve is communicated with one end of the warm air core.
According to some embodiments of the invention, the heat exchanger loop comprises a heat exchanger, one end of the heat exchanger is communicated with one end of the first control valve and the battery heat exchange loop, the other end of the heat exchanger is communicated with the first control valve, and the air conditioning system is communicated with the heat exchanger;
according to some embodiments of the invention, the heating loop comprises a condenser, an electric heater and a warm air core, wherein the electric heater and the warm air core are connected in series with each other, and the air conditioning system comprises a compressor and an evaporator, wherein the compressor, the evaporator and the condenser are connected in series with each other, and wherein the heat exchanger and the evaporator are connected in parallel with each other and are connected in series with the condenser.
According to some embodiments of the invention, the radiator loop comprises a radiator, one end of the radiator is communicated with the first control valve and one end of the high-pressure heat exchange loop, the other end of the radiator is communicated with the first control valve, the high-pressure heat exchange loop comprises a motor, an electric control and a first water pump, the motor, the electric control and the first water pump are mutually connected in series, the battery heat exchange loop comprises a second water pump and a battery pack, the second water pump and the battery pack are mutually connected in series, and one end of the second water pump is communicated with the first control valve.
A vehicle according to an embodiment of the second aspect of the invention comprises the thermal management system.
Additional aspects and advantages of the 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.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic diagram of a thermal management system according to an embodiment of the invention;
FIG. 2 is a circuit schematic diagram of a first mode of a thermal management system according to an embodiment of the invention;
FIG. 3 is a circuit schematic diagram of a second mode of a thermal management system according to an embodiment of the invention;
FIG. 4 is a circuit schematic diagram of a third mode of a thermal management system according to an embodiment of the invention;
FIG. 5 is a circuit schematic diagram of a fourth mode of a thermal management system according to an embodiment of the invention;
FIG. 6 is a circuit schematic diagram of a fifth mode of a thermal management system according to an embodiment of the invention;
FIG. 7 is a circuit schematic diagram of a sixth mode of a thermal management system according to an embodiment of the invention.
Reference numerals:
100. A thermal management system;
10. a high pressure heat exchange loop; 11, a motor, 12, an electric control, 13, a first water pump;
20. a battery heat exchange circuit; 21, a battery pack, 22, a second water pump;
30. a radiator circuit; 31, a radiator;
40. 41, heat exchanger;
50. heating loop, 51, warm air core, 52, electric heater, 53, third water pump;
61. First control valve, 62, second control valve, 63, multi-way pipe, 64, first check valve, 65, second check valve, 66, first stop valve;
71. condenser, 72, evaporator, 73, compressor;
81. the overflow tank 82, the four-way pipe 83, the first branch, the second branch 84, the third branch 85, the fourth branch 86, the fifth branch 87, the fifth branch 88 and the sixth branch;
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
A thermal management system 100 according to an embodiment of the present invention is described below with reference to fig. 1-7, and a vehicle is also presented.
The thermal management system 100 includes a first control valve 61, the first control valve 61 is in communication with the high pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40, and the first control valve 61 is in selective communication with one or more of the high pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40. The first control valve 61 includes a plurality of valve ports connected to the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40, respectively, and selectively communicates with one or more of the high-pressure heat exchange circuit 10, the battery heat exchange circuit 20, the radiator circuit 30, and the heat exchanger circuit 40 by controlling communication of the plurality of valve ports therein.
The thermal management system 100 also includes an air conditioning system that exchanges heat with the heat exchanger loop 40 and the heating loop 50. The thermal management system 100 also includes a heating circuit 50, the heating circuit 50 being operable to heat the passenger compartment. The air conditioning system and the heating loop 50 exchange heat through the condenser 71, and the refrigerant exchanges heat with the cooling liquid at the condenser 71 to realize the heat exchange of the air conditioning system and the heating loop 50.
For example, as shown in fig. 2 and 3, the first control valve 61 may be connected to 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 circuit, and the cooling liquid is used to bring the heat generated by the high-pressure device in the high-pressure heat exchange circuit 10 to the radiator circuit 30, so as to realize heat dissipation of the high-pressure device.
As shown in fig. 4 and 5, the first control valve 61 may be connected to two ends of the battery heat exchange circuit 20, and a closed circuit is formed in the battery heat exchange circuit 20 to realize the temperature equalization of the battery pack 21.
For another example, as shown in fig. 3, the first control valve 61 may be connected in series with the radiator 31 after connecting the high-pressure heat exchange circuit 10 and the battery heat exchange circuit 20 in parallel. The high-pressure heat exchange loop 10 and the battery heat exchange loop 20 are connected in parallel and then connected in series with the radiator loop 30, and the cooling liquid flows among the radiator 31, the high-pressure heat exchange loop 10 and the battery heat exchange loop 20, so that heat generated by the battery pack 21 and the high-pressure device can be transported to the radiator 31 and dissipated to the outside, and heat dissipation of the battery pack 21 and the high-pressure device is realized.
As another example, as shown in fig. 4, the first control valve 61 may communicate the battery heat exchange circuit 20, the high pressure heat exchange circuit 10, and the heat exchanger circuit 40. The battery heat exchange circuit 20, the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40 are mutually connected in series, the battery heat exchange circuit 20, the high-pressure heat exchange circuit 10 and the heat exchanger circuit 40 are connected in series to form a closed circuit, the heat exchanger circuit 40 exchanges heat with an air conditioning system, and a refrigerant of the air conditioning system absorbs waste heat generated by a high-pressure device, and when the condenser 71 is connected in series with the battery heat exchange circuit 20, the heat can be used for heating the battery pack 21.
As shown in fig. 2, a first control valve 61 may connect the heat exchanger loop 40 and the battery heat exchanger loop 20 in series. The heat exchanger loop 40 may absorb heat from the battery pack 21, and the heat exchanger loop 40 transfers the heat to the air conditioning system for passenger compartment heating.
As shown in fig. 2, a first control valve 61 may communicate the high pressure heat exchange circuit 10 with the heat exchanger circuit 40. The heat generated by the high-voltage device is brought to the heat exchanger loop 40 through the cooling liquid, so that the waste heat of the high-voltage device is recovered, the waste heat can be used for defrosting in a cold environment, and the heat at the heat exchanger loop 40 can be transmitted to the condenser 71 through the refrigerant due to the communication between the heat exchanger loop 40 and the air conditioning system, so that the heating of the passenger cabin is realized.
The formation of at least one closed circuit between the radiator 31, the heat exchanger 41, the battery heat exchange circuit 20 and the high pressure heat exchange circuit 10 is achieved by the first control valve 61, i.e., the heat generated by the high pressure heat exchange circuit 10 or the battery heat exchange circuit 20 can be transported into the remaining circuits or devices, so that the heat generated by the thermal management system 100 can be effectively utilized.
The thermal management system 100 further includes a manifold 63, at least two ends of the manifold 63 being in communication with the first control valve 61, and a further end of the manifold 63 being in communication with the battery heat exchange circuit 20. At least two nozzles of the multi-way pipe 63 are communicated with two valve ports of the first control valve 61, and one nozzle of the multi-way pipe 63 is communicated with the battery heat exchange circuit 20.
The thermal management system 100 further includes a condenser 71, one end of the condenser 71 is selectively communicated with the other end of the multi-pipe 63 and one end of the heating loop 50, and the other end of the condenser 71 is communicated with the first control valve 61 and the other end of the heating loop 50. Specifically, when one end of the condenser 71 is communicated with the other end of the multi-way pipe 63, one valve port of the first control valve 61 or one end of the battery heat exchange circuit 20 is communicated with one end of the condenser 71, and the other end of the condenser 71 is communicated with the other valve port of the first control valve 61, the series connection of the battery heat exchange circuit 20 and the condenser 71 can be realized, and the waste heat or the environmental heat of the motor 11 can be used for heating the battery pack 21, or the series connection of the radiator circuit 30 and the condenser 71 can be realized, the cooling of the condenser 71 can be realized, and the working efficiency of the air conditioning system can be improved.
The first control valve 61 includes a first valve port, "a" in fig. 1 to 7, "b" in fig. 1 to 7, "c" in fig. 1 to 7, "d" in fig. 1 to 7, "e" in fig. 1 to 7, "sixth" in fig. 1 to 7, "g" in fig. 1 to 7, "h" in fig. 1 to 7, "i" in fig. 1 to 7, and "c" in fig. 1 to 7.
Specifically, the first valve port is communicated with one end of the radiator 31, the second valve port is communicated with the other end of the heat exchanger 41, the third valve port is communicated with one end of the battery heat exchange circuit 20, the fourth valve port is communicated with the other end of the battery heat exchange circuit 20, and the fifth valve port is communicated with one pipe orifice of the multi-way pipe 63.
As shown in fig. 1, the multi-way pipe 63 includes a first pipe orifice and a second pipe orifice, and the thermal management system 100 further includes a first branch 83 and a second branch 84, the first branch 83 being connected between the first pipe orifice and one valve port of the first control valve 61, one end of the second branch 84 being in communication with the second pipe orifice, and the other end of the second branch 84 being in communication with the battery heat exchange circuit 20. That is, one end of the first branch 83 is communicated with the first pipe orifice, the other end of the first branch 83 is communicated with the fifth pipe orifice, the second branch 84 is connected between the second pipe orifice and the battery heat exchange circuit 20, the first branch 83 can be communicated with the fifth pipe orifice and the first pipe orifice, the condenser 71 can be connected in series with the radiator circuit 30 to realize cooling of the condenser 71, the second branch 84 can be communicated with one end of the battery heat exchange circuit 20 and the second pipe orifice, and therefore the first control valve 61 can be connected in series with the battery heat exchange circuit 20 and the high-pressure heat exchange circuit 10 to heat the battery pack 21 by using waste heat of the motor 11.
As shown in connection with fig. 1 and 2, the thermal management system 100 further includes a third leg 85 and a fourth leg 86, one end of the third leg 85 being in communication with the third orifice and the other end being in selective communication with one end of the condenser 71, one end of the fourth leg 86 being in communication with the fourth orifice and the other end being in communication with the first control valve 61. Specifically, the fourth branch 86 may be connected to one end of the battery heat exchange circuit 20 and the first control valve 61, and then the first control valve 61 may be connected to two ends of the battery heat exchange circuit 20 to achieve temperature equalization of the battery pack 21, or the third branch 85 may be connected to the third pipe orifice and one end of the condenser 71 to achieve serial connection of the condenser 71 and the radiator circuit 30 to achieve cooling of the condenser 71.
Further, the fourth branch 86 is provided with a first check valve 64 and a second check valve 65, one end of the first check valve 64 is communicated with the fourth pipe port, the other end is communicated with one end of the second check valve 65, and the other end of the second check valve 65 is communicated with the first control valve 61. According to fig. 1, the sixth port communicates with one end of the second check valve 65, the seventh port communicates with the other end of the second check valve 65 and the other end of the condenser 71, the eighth port communicates with the other end of the radiator 31, and the ninth port communicates with the other end of the high-pressure heat exchange circuit 10.
The thermal management system 100 further includes a fifth leg 87, the fifth leg 87 having one end of the fifth leg 87 in communication with the first control valve 61 and the other end of the fifth leg 87 in communication with the other end of the first check valve 64 and one end of the second check valve 65. One end of the fifth branch 87 communicates with the sixth valve port, and the other end of the fifth branch 87 communicates with one end of the second check valve 65.
As shown in fig. 2 and 3, the fifth branch 87 communicates with one ends of the sixth valve port and the second check valve 65, the first control valve 61 may communicate with the sixth valve port and the ninth valve port, the other end of the second check valve 65 communicates with the seventh valve port, and the first control valve 61 communicates with the seventh valve port and the eighth valve port, whereby the radiator circuit 30 and the high pressure heat exchange circuit 10 may be connected in series.
As shown in fig. 6, the fifth branch 87 is connected to one ends of the sixth valve port and the second check valve 65, the first control valve 61 may be connected to the second valve port and the sixth valve port, the other end of the second check valve 65 is connected to the seventh valve port, the first control valve 61 is connected to the seventh valve port and the fourth valve port, the fourth valve port is connected to the battery heat exchange circuit 20, and if the shut-off valve 66 is opened, the battery heat exchange circuit 20 and the heat exchanger circuit 40 may be connected in series to realize active cooling of the battery pack 21.
The thermal management system 100 further includes a first shut-off valve 66, one end of the first shut-off valve 66 being in communication with one end of the battery heat exchange circuit 20, and the other end of the first shut-off valve 66 being in communication with one end of the heat exchanger circuit 40. Specifically, the thermal management system 100 further includes a sixth branch 88, one end of the sixth branch 88 being in communication with the first control valve 61, and the other end of the sixth branch 88 being in communication with one end of the heat exchanger circuit 40. The sixth branch 88 is connected to one end of the third valve port and the heat exchanger loop 40, and if the first control valve 61 is connected to the second valve port and the eighth valve port and is connected to the third valve port and the ninth valve port (as shown in fig. 4), the heat exchanger loop 40, the high-pressure heat exchange loop 10 and the radiator loop 30 are connected in series, and the heat exchanger 41 can absorb heat of the motor 11 and environmental heat, so that the heat exchanger can be used for heating the passenger cabin or heating the battery.
The heating circuit 50 includes a condenser 71, an electric heater 52, and a warm air core 51, the electric heater 52 and the condenser 71 being connected in series with each other, one end of the condenser 71 being selectively communicated with one end of the multi-pipe 63 and the warm air core 51, the other end of the condenser 71 being communicated with one end of the electric heater 52, the other end of the electric heater 52 being communicated with the other end of the warm air core 51 and the first control valve 61. The refrigerant of the air conditioning system can flow through the condenser 71, the cooling liquid of the heating loop 50 can flow through the condenser 71, namely, the condenser 71 is not only part of the air conditioning system, but also part of the heating loop 50, so that when the air conditioning system is in operation, the condenser 71 can transmit heat to the battery heat exchange loop 20 or the warm air core 51 through the first control valve 61 and the second control valve 62 to heat the battery pack 21 or the passenger cabin, thereby reasonably utilizing the heat generated by the condenser 71, and the radiator loop 30 and the condenser 71 can be connected in series through the first control valve 61 and the second control valve 62 to transmit the heat to the radiator loop 30, and the radiator 31 can radiate the heat to the outside, so that the condenser 71 is cooled.
One end of the warm air core 51 communicates with the second control valve 62, and the other end of the warm air core 51 communicates with the other end of the condenser 71. The condenser 71 radiates heat into the coolant, which flows through the warm air core 51, thereby radiating heat into the passenger compartment, realizing heating of the passenger compartment.
The electric heater 52 is connected in series with the condenser 71, and when the second control valve 62 is connected to both ends of the heating circuit 50, the cooling liquid in the heating circuit 50 can be heated by the electric heater 52, so that the electric heater 52 can perform a heating function when the air conditioning system is not operated. Wherein the electric heater 52 may be a PTC heater.
The heating circuit 50 further includes a third water pump 53, the third water pump 53 is disposed between one end of the condenser 71 and the second control valve 62, and the third water pump 53 is connected in series with the condenser 71. The third water pump 53 can realize the circulation flow of the cooling liquid.
As shown in connection with fig. 1-7, the thermal management system 100 further includes a second control valve 62, one end of the second control valve 62 being in communication with one end of the condenser 71, a further end of the second control valve 62 being in communication with the manifold 63, and a further end of the second control valve 62 being in communication with one end of the heater core 51. The second control valve 62 includes a tenth valve port, "j" in fig. 1 to 7, an eleventh valve port, "k" in fig. 1 to 7, and a twelfth valve port, "m" in fig. 1 to 7.
The tenth port communicates with the third nozzle of the multi-way pipe 63, the eleventh port communicates with one end of the condenser 71, and the twelfth port communicates with one end of the heater core 51. When the tenth valve port and the eleventh valve port are communicated, one end of the battery heat exchange circuit 20 can be connected in series with the condenser 71, for example, when the condenser 71, the battery heat exchange circuit 20 and the radiator 31 are connected in series as shown in fig. 3 to realize cooling of the battery pack 21 and cooling of the condenser 71, or when the battery pack 21 and the condenser 71 are connected in series as shown in fig. 4 to 6 to realize heating of the battery pack 21, or when the fifth valve port and the seventh valve port are respectively communicated with two ends of the condenser 71 as shown in fig. 2, the first control valve 61 is connected with the first valve port and the fifth valve port and is connected with the seventh valve port and the eighth valve port, both the condenser 71 and the radiator 31 can be connected in series to realize cooling of the condenser 71.
According to some embodiments of the present invention, the heat exchanger circuit 40 includes a heat exchanger 41, one end of the heat exchanger 41 is communicated with the first control valve 61 and one end of the battery heat exchange circuit 20, the other end of the heat exchanger 41 is communicated with the first control valve 61, and the air conditioning system is communicated with the heat exchanger 41, and the heating circuit 50 includes a condenser 71, an electric heater 52 and a warm air core 51, the electric heater 52 and the warm air core 51 being connected in series with each other, and the air conditioning system includes a compressor 73 and an evaporator 72, the compressor 73, the evaporator 72 and the condenser 71 being connected in series with each other, wherein the heat exchanger 41 and the evaporator 72 are connected in parallel with each other and the condenser 71 being connected in series with each other. The refrigerant in the air conditioning system exchanges heat with the cooling liquid at the heat exchanger 41, so that the refrigerant can absorb heat of the battery heat exchange circuit 20 or the high-pressure heat exchange circuit 10 or the environment. The refrigerant flows out of the compressor 73, releases heat at the condenser 71, absorbs heat at the evaporator 72 or the heat exchanger 41, and finally returns to the compressor 73, and when the passenger compartment is cooled, the refrigerant absorbs heat of the passenger compartment at the evaporator 72, and the coolant flowing through the condenser 71 releases the heat to the heating circuit 50.
Further, the heat exchanger 41 is connected in parallel with the evaporator 72, so that the refrigerant can flow to the heat exchanger 41 to absorb heat after the heat of the condenser 71 is released, the heat of the refrigerant absorbing heat exchanger 41 can be used for being transmitted to the heating loop 50 at the condenser 71 for heating the passenger compartment, or the refrigerant can flow to the evaporator 72 to absorb heat after the heat of the condenser 71 is released.
According to some embodiments of the present invention, the radiator circuit 30 includes a radiator 31, one end of the radiator 31 is communicated with the first control valve 61 and one end of the high pressure heat exchange circuit 10, and the other end of the radiator 31 is communicated with the first control valve 61. Specifically, when the coolant of the radiator 31 flows through the radiator 31, the radiator 31 radiates heat to the outside if the temperature of the coolant is higher than the radiator 31, and absorbs heat of the radiator 31 if the temperature of the coolant is lower than the radiator 31.
And the battery heat exchange circuit 20 comprises a battery pack 21 and a second water pump 22, wherein the battery pack 21 and the second water pump 22 are connected in series. The battery pack 21 and the second water pump 22 are connected in series. The coolant may flow through the battery heat exchange circuit 20 by the driving of the second water pump 22, and if the coolant flowing through the battery heat exchange circuit 20 is higher than the temperature of the battery pack 21, the coolant heats the battery pack 21, and if the coolant flowing through the battery heat exchange circuit 20 is lower than the temperature of the battery pack 21, the battery pack 21 is cooled.
Wherein the first water pump 13 can realize the circulation flow of the cooling liquid.
The high-pressure heat exchange circuit 10 further comprises a first temperature sensor, and the first temperature sensor, the first water pump 13 and the motor 11 are mutually connected in series. Specifically, the first temperature sensor may monitor the temperature of the coolant, thereby controlling the opening of the first water pump 13 according to the temperature of the coolant, and thus controlling the flow rate of the coolant. For example, when the temperature of the coolant is high, the opening degree of the first water pump 13 may be adjusted to be high.
According to some embodiments of the present invention, the heat exchanger circuit 40 includes a heat exchanger 41, one end of which is in communication with a first control valve 61, and the battery heat exchange circuit 20 includes a second water pump 22 and a battery pack 21, the second water pump 22 and the battery pack 21 being connected in series with each other, one end of the second water pump 22 being in communication with the first control valve 61. The battery pack 21 and the second water pump 22 are connected in series, and the second water pump 22 drives the cooling liquid to circulate in the battery pack 21, so that the battery pack 21 can absorb heat or dissipate heat conveniently.
The thermal management system 100 further includes an overflow tank 81 and a four-way pipe 82, the four-way pipe 82 being in communication with the radiator circuit 30, the first control valve 61, the high pressure heat exchange circuit 10, and the overflow tank 81, respectively. Radiator 31 communicates with the first valve port and the high-pressure heat exchange circuit 10 through a four-way pipe 82. One pipe orifice of the four-way pipe 82 is communicated with one end of the radiator 31, the other pipe orifice of the four-way pipe 82 is communicated with the overflow tank 81, the other pipe orifice of the four-way pipe 82 is communicated with the first valve port, and the other pipe orifice of the four-way pipe 82 is communicated with one end of the high-pressure heat exchange circuit 10.
A vehicle according to an embodiment of the second aspect of the invention includes a thermal management system 100.
The following describes six modes of operation of thermal management system 100 in accordance with an embodiment of the present invention with reference to FIGS. 2-7.
Referring to FIG. 2, mode one of operation of thermal management system 100 is shown:
the first loop comprises a radiator 31, a first water pump 13, an electric control 12, a motor 11, a first control valve 61, a second one-way valve 65, a first control valve 61 and the radiator 31.
The sixth valve port is communicated with the ninth valve port, and the seventh valve port is communicated with the eighth valve port. That is, the first control valve 61 and the first check valve 64 cooperate with each other to connect the radiator circuit 30 and the high-pressure heat exchange circuit 10 in series, so that waste heat generated by high-pressure devices (e.g., the motor 11, the electric controller 12) in the high-pressure heat exchange circuit 10 can be dissipated to the outside through the radiator 31, thereby realizing cooling of the high-pressure components.
Second water pump 22- & gtbattery pack 21- & gtfirst stop valve 66- & gtheat exchanger 41- & gtfirst control valve 61- & gtsecond water pump 22.
The second valve port communicates with the fourth valve port, and the battery heat exchange circuit 20 and the heat exchanger circuit 40 are connected in series. The heat exchanger 41 in the heat exchanger loop 40 can absorb heat of the battery pack 21 to cool the battery pack 21.
The third loop is that the condenser 71, the electric heater 52, the first control valve 61, the radiator 31, the first control valve 61, the multi-way pipe 63, the second control valve 62, the third water pump 53 and the condenser 71.
The sixth valve port is communicated with the ninth valve port, the seventh valve port is communicated with the eighth valve port, the tenth valve port is communicated with the eleventh valve port, namely, one end of the fifth valve port is communicated with the condenser 71, the condenser 71 is connected with the high-pressure heat exchange loop 10 in parallel and then connected with the radiator 31 in series, and the heat of the cooler and the radiator and the heat of the high-pressure device can be emitted to the outside through the radiator 31.
The fourth loop is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The eleventh valve port is communicated with the twelfth valve port, the second control valve 62 is communicated with two ends of the heating loop 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 heat of the battery pack 21 and releases the heat to an air conditioning system, the condenser 71 can transfer the heat to the heating loop 50 for heating a passenger cabin, and the energy utilization rate is improved.
Referring to FIG. 3, the thermal management system 100 operates in mode two:
the first loop comprises a radiator 31, a first water pump 13, an electric control 12, a motor 11, a first control valve 61, a second one-way valve 65 and the radiator 31.
The sixth valve port is communicated with the ninth valve port, and the seventh valve port is communicated with the eighth valve port, namely, the first control valve 61 is connected in series with the radiator loop 30 and the high-pressure heat exchange loop 10, so that waste heat generated by the motor 11 and the electric control 12 is dissipated to the outside through the radiator 31, and cooling of the motor 11 and the electric control 12 is realized.
The second loop comprises a radiator 31, a first control valve 61, a second water pump 22, a battery pack 21, a first one-way valve 64, a second one-way valve 65, a first control valve 61 and the radiator 31.
Wherein the first valve port is communicated with the fourth valve port, and the seventh valve port is communicated with the eighth valve port, namely, the first control valve 61 is connected in series with the radiator loop 30 and the battery heat exchange loop 20, and the cooling liquid flows between the battery heat exchange loop 20 and the radiator loop 30 to radiate the heat of the battery to the outside through the radiator 31, so that the battery pack 21 is cooled.
Specifically, the first and second circuits realize that the battery heat exchange circuit 20 and the high-pressure heat exchange circuit 10 are connected in parallel and then connected in series with the radiator 31, so as to realize that the battery pack 21 and the motor 11 are cooled simultaneously.
The third loop comprises a radiator 31, a first control valve 61, a second water pump 22, a battery pack 21, a multi-way pipe 63, a second control valve 62, a third water pump 53, a condenser 71, a first control valve 61 and a radiator 31.
Wherein the first valve port is communicated with the fourth valve port, and the seventh valve port is communicated with the eighth valve port, namely, the first control valve 61 is connected in series with the radiator loop 30, the battery heat exchange loop 20 and the condenser 71, and the cooling liquid flows among the battery pack 21, the condenser 71 and the radiator 31, so that heat of the battery pack 21 and heat of the condenser 71 are emitted to the outside through the radiator 31, and cooling of the battery pack 21 and cooling of the condenser 71 are realized.
The fourth loop is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The eleventh valve port is communicated with the twelfth valve port, the second control valve 62 is communicated with two ends of the heating loop 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 heat of the battery pack 21 and releases the heat to an air conditioning system, the condenser 71 can transfer the heat to the heating loop 50 for heating a passenger cabin, and the energy utilization rate is improved.
The third loop and the fourth loop are communicated with one another according to actual needs.
Referring to FIG. 4, mode three of operation of thermal management system 100:
The first loop comprises a radiator 31, a first water pump 13, an electric control 12, a motor 11, a first control valve 61, a heat exchanger 41, a first control valve 61 and the radiator 31.
Wherein the ninth valve port is communicated with the third valve port, and the second valve port is communicated with the eighth valve port. That is, the first control valve 61 is connected in series to 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 electric controller 12, the motor 11, and the heat exchanger 41, and the coolant sequentially flows through the radiator 31, the electric controller 12, and the motor 11 by the driving of the first water pump 13, absorbs heat of the radiator 31 (environmental heat) and heat of the motor 11, and transfers the absorbed heat to the refrigerant flowing in the air conditioning system through the heat exchanger 41.
The second loop is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The tenth valve port is communicated with the eleventh valve port, the second control valve 62 is communicated with two ends of the heating loop 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 heat of the motor 11 and environmental heat and releases the heat to an air conditioning system, and the condenser 71 can transfer the heat to the heating loop 50 for heating a passenger cabin, so that the energy utilization rate is improved.
The third circuit is that the condenser 71, the electric heater 52, the first control valve 61, the second water pump 22, the battery pack 21, the second control valve 62, the third water pump 53 and the condenser 71.
The first control valve 61 is communicated with the fourth valve port and the seventh valve port, the second control valve 62 is communicated with the tenth valve port and the eleventh valve port, the battery heat exchange circuit 20 and the condenser 71 are connected in series, the condenser 71 can use the heat of the motor 11 and the environment heat for heating the battery pack 21, the normal operation of the battery pack 21 is ensured, the heat of the high-pressure heat exchange circuit 10 and the environment is fully utilized, and the energy utilization rate is improved.
The fourth circuit is that the battery pack 21, the first one-way valve 64, the second one-way valve 65, the first control valve 61, the second water pump 22 and the battery pack 21.
The fourth valve port is communicated with the seventh valve port, the first control valve 61, the first check valve 64 and the second check valve 65 are communicated with two ends of the battery heat exchange loop 20, and the cooling liquid circularly flows in the battery heat exchange loop 20 to realize the uniform temperature of the battery pack 21.
The third loop and the second loop can be communicated at the same time, and also can be communicated with the second loop or the third loop independently.
The first loop, the second loop and the third loop are communicated to realize that the water source heat pump absorbs heat of the radiator 31 and the motor 11 and is used for heating the passenger cabin and the battery pack 21, the first loop and the second loop are communicated to realize that the water source heat pump absorbs heat of the radiator 31 and the motor 11 and is used for heating the passenger cabin, and the first loop and the third loop are communicated to realize that the water source heat pump absorbs heat of the radiator 31 and the motor 11 and is used for heating the battery pack 21.
Referring to fig. 5, mode four of operation of thermal management system 100:
the first water pump 13, the electric control 12, the motor 11, the first control valve 61, the heat exchanger 41, the first control valve 61 and the first water pump 13.
Wherein, the ninth valve port is communicated with the third valve port, and the second valve port is communicated with the first valve port. 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 electric control 12, the motor 11 and the heat exchanger 41 are connected in series, the cooling liquid sequentially flows through the electric control 12 and the motor 11 under the driving of the first water pump 13, the heat of the motor 11 is absorbed, and the absorbed heat is transmitted to the refrigerant flowing in the air conditioning system through the heat exchanger 41.
The second loop is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The tenth valve port is communicated with the eleventh valve port, the second control valve 62 is communicated with two ends of the heating loop 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 heat of the motor 11 and releases the heat to an air conditioning system, and the condenser 71 can transfer the heat to the heating loop 50 for heating a passenger cabin and improving the energy utilization rate.
The third circuit is that the condenser 71, the electric heater 52, the first control valve 61, the second water pump 22, the battery pack 21, the second control valve 62, the third water pump 53 and the condenser 71.
The first control valve 61 is communicated with the fourth valve port and the seventh valve port, the second control valve 62 is communicated with the tenth valve port and the eleventh valve port, the battery heat exchange circuit 20 and the condenser 71 are connected in series, the condenser 71 can use the heat of the motor 11 for heating the battery pack 21, the normal work of the battery pack 21 is ensured, the heat of the high-pressure heat exchange circuit 10 and the environment is fully utilized, and the energy utilization rate is improved.
The fourth circuit is that the battery pack 21, the first one-way valve 64, the second one-way valve 65, the first control valve 61, the second water pump 22 and the battery pack 21.
The fourth valve port is communicated with the seventh valve port, the first control valve 61, the first check valve 64 and the second check valve 65 are communicated with two ends of the battery heat exchange loop 20, and the cooling liquid circularly flows in the battery heat exchange loop 20 to realize the uniform temperature of the battery pack 21.
The third loop and the second loop can be communicated at the same time, and also can be communicated with the second loop or the third loop independently.
The first loop, the second loop and the third loop are communicated to realize the heat absorption of the motor 11 by the water source heat pump and heat the passenger cabin and the battery pack 21, the first loop and the second loop are communicated to realize the heat absorption of the water source heat pump and heat of the motor 11 and heat the passenger cabin, and the first loop and the third loop are communicated to realize the heat absorption of the motor 11 by the water source heat pump and heat the battery pack 21.
Referring to fig. 6, mode five of operation of thermal management system 100:
The first loop comprises a first water pump 13, an electric control 12, a motor 11, a first control valve 61 and the first water pump 13.
Wherein, the first valve port is communicated with the ninth valve port, namely, the first control valve 61 is communicated with two ends of the high-pressure heat exchange waterway, so that heat accumulation of the motor 11 is realized.
The second loop is that the condenser 71, the electric heater 52, the first control valve 61, the second water pump 22, the battery pack 21, the second control valve 62, the third water pump 53 and the condenser 71.
The first control valve 61 is connected to the fourth valve port and the seventh valve port, the second control valve 62 is connected to the tenth valve port and the eleventh valve port, the battery heat exchange circuit 20 and the condenser 71 are connected in series, the compressor 73 operates, the refrigerant emits heat in the condenser 71, after the cooling liquid exchanges heat with the refrigerant in the condenser 71, the cooling liquid flows out of the condenser 71 and flows to the battery heat exchange circuit 20, and thereby the battery pack 21 is heated.
The third circuit is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The eleventh valve port is communicated with the twelfth valve port, the second control valve 62 is communicated with two ends of the heating loop 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the compressor 73 works, the refrigerant emits heat in the condenser 71, the cooling liquid exchanges heat with the refrigerant at the condenser 71, and the cooling liquid flows out of the condenser 71 and flows to the warm air core 51, so that the passenger cabin heating is realized.
The third loop and the second loop can be communicated at the same time, and also can be communicated with the second loop or the third loop independently.
The fourth circuit is that the battery pack 21, the first one-way valve 64, the second one-way valve 65, the first control valve 61, the second water pump 22 and the battery pack 21.
The fourth valve port is communicated with the seventh valve port, the first control valve 61, the first check valve 64 and the second check valve 65 are communicated with two ends of the battery heat exchange loop 20, and the cooling liquid circularly flows in the battery heat exchange loop 20 to realize the uniform temperature of the battery pack 21. If the battery pack 21 does not need to be heated, the fourth circuit and the third circuit can be communicated at the same time, and the fourth circuit and the second circuit cannot be communicated at the same time.
The fifth circuit is that the battery pack 21, the stop valve, the heat exchanger 41, the first control valve 61, the second water pump 22 and the battery pack 21.
That is, the shut-off valve is opened, and the second valve port communicates with the sixth valve port. When the temperature of the battery pack 21 is overheated, the battery heat exchange circuit 20 and the heat exchanger 41 can be communicated, the cooling liquid flowing out of the battery pack 21 can flow to the heat exchanger 41, and the heat exchanger 41 absorbs the heat of the battery pack 21, so that the battery pack 21 is cooled.
Referring to fig. 7, mode six of operation of thermal management system 100:
The first loop comprises a first water pump 13, an electric control 12, a motor 11, a first control valve 61, a second water pump 22, a battery pack 21, a multi-way pipe 63, a first one-way valve 64, a second one-way valve 65, a first control valve 61 and a first water pump 13.
Wherein the first valve port is communicated with the seventh valve port, the fourth valve port is communicated with the ninth valve port, namely, the first control valve 61, the first check valve 64 and the second check valve 65 are connected in series with the high-pressure heat exchange waterway and the battery heat exchange loop 20, and the heat generated by the motor 11 can be used for heating the battery pack 21.
The second loop comprises a first water pump 13, an electric control 12, a motor 11, a first control valve 61, a second water pump 22, a battery pack 21, a second control valve 62, a third water pump 53, a condenser 71, an electric heater 52, a first control valve 61 and the first water pump 13.
The first valve port is communicated with the seventh valve port, the fourth valve port is communicated with the ninth valve port, the second control valve 62 is communicated with the tenth valve port and the eleventh valve port, and the heat exchange circuit of the motor 11, the battery heat exchange circuit 20 and the condenser 71 are connected in series. The compressor 73 operates, the refrigerant emits heat in the condenser 71, the cooling liquid exchanges heat with the refrigerant in the condenser 71, the cooling liquid flows out of the condenser 71 and flows to the battery heat exchange circuit 20, thereby heating the battery pack 21, the cooling liquid heats the motor 11 if the temperature of the motor 11 is lower than the temperature of the cooling liquid, preheating of the motor 11 is realized, and the cooling liquid absorbs heat of the motor 11 if the temperature of the motor 11 is higher than the temperature of the cooling liquid, so as to heat the battery pack 21.
The third circuit is that the condenser 71, the electric heater 52, the warm air core 51, the second control valve 62, the third water pump 53 and the condenser 71.
The eleventh valve port is communicated with the twelfth valve port, the second control valve 62 is communicated with two ends of the heating loop 50, the condenser 71, the electric heater 52, the warm air core 51 and the third water pump 53 are connected in series, the compressor 73 works, the refrigerant emits heat in the condenser 71, the cooling liquid exchanges heat with the refrigerant at the condenser 71, and the cooling liquid flows out of the condenser 71 and flows to the warm air core 51, so that the passenger cabin heating is realized.
The third loop and the second loop can be communicated at the same time, and also can be communicated with the second loop or the third loop independently.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (12)

1. A thermal management system, comprising:
An air conditioning system;
A first control valve (61), wherein the first control valve (61) is communicated with a high-pressure heat exchange loop (10), a battery heat exchange loop (20), a radiator loop (30) and a heat exchanger loop (40), and the first control valve (61) is selectively communicated with one or more of the high-pressure heat exchange loop (10), the battery heat exchange loop (20), the radiator loop (30) and the heat exchanger loop (40);
A multi-way pipe (63), at least two ends of the multi-way pipe (63) are communicated with the first control valve (61), and the other end of the multi-way pipe (63) is communicated with the battery heat exchange circuit (20), and
The high-pressure heat exchange loop (10) comprises a motor (11), an electric control (12) and a first water pump (13), wherein the motor (11), the electric control (12) and the first water pump (13) are mutually connected in series, and
The heating loop (50) comprises a condenser (71), an electric heater (52) and a warm air core body (51), wherein the electric heater (52) and the condenser (71) are mutually connected in series, one end of the condenser (71) is selectively communicated with one end of the multi-way pipe (63) and one end of the warm air core body (51), the other end of the condenser (71) is communicated with one end of the electric heater (52), and the other end of the electric heater (52) is communicated with the other end of the warm air core body (51) and the first control valve (61).
2. The thermal management system of claim 1, wherein the manifold (63) comprises a first nozzle and a second nozzle, and
The thermal management system (100) further comprises a first branch (83) and a second branch (84), wherein the first branch (83) is connected between the first pipe orifice and one valve port of the first control valve (61), one end of the second branch (84) is communicated with the second pipe orifice, and the other end of the second branch (84) is communicated with the battery heat exchange loop (20).
3. The thermal management system of claim 2, wherein the manifold (63) further comprises a third nozzle and a fourth nozzle, and
The thermal management system (100) further comprises a third branch (85) and a fourth branch (86), wherein one end of the third branch (85) is communicated with the third pipe orifice, the other end of the third branch is selectively communicated with one end of the condenser (71), and one end of the fourth branch (86) is communicated with the fourth pipe orifice, and the other end of the fourth branch is communicated with the first control valve (61).
4. A thermal management system according to claim 3, wherein the fourth branch (86) is provided with a first check valve (64) and a second check valve (65), one end of the first check valve (64) being in communication with the fourth pipe orifice and the other end being in communication with one end of the second check valve (65), the other end of the second check valve (65) being in communication with the first control valve (61).
5. The thermal management system of claim 4, further comprising a fifth branch (87), wherein one end of the fifth branch (87) communicates with the first control valve (61), and wherein the other end of the fifth branch (87) communicates with one end of the second check valve (65).
6. The thermal management system of claim 1, further comprising a sixth leg (88), one end of the sixth leg (88) being in communication with the first control valve (61), the other end of the sixth leg (88) being in communication with one end of the heat exchanger circuit (40).
7. The thermal management system of claim 1, further comprising a first shut-off valve (66), one end of the first shut-off valve (66) being in communication with one end of the battery heat exchange circuit (20), the other end of the first shut-off valve (66) being in communication with one end of the heat exchanger circuit (40).
8. The thermal management system according to claim 1, further comprising a second control valve (62), one end of the second control valve (62) being in communication with one end of the condenser (71), a further end of the second control valve (62) being in communication with the multi-way pipe (63), a further end of the second control valve (62) being in communication with one end of the warm air core (51).
9. The thermal management system according to claim 1, wherein the heat exchanger circuit (40) comprises a heat exchanger (41), one end of the heat exchanger (41) is in communication with the first control valve (61) and one end of the battery heat exchange circuit (20), the other end of the heat exchanger (41) is in communication with the first control valve (61), and the air conditioning system is in communication with the heat exchanger (41).
10. The thermal management system according to claim 9, wherein the air conditioning system comprises a compressor (73) and an evaporator (72), the compressor (73), the evaporator (72) and the condenser (71) being connected in series with each other;
wherein the heat exchanger (41) and the evaporator (72) are connected in parallel with each other and in series with the condenser (71).
11. The heat management system according to claim 1, wherein the radiator circuit (30) includes a radiator (31), one end of the radiator (31) communicates with the first control valve (61) and one end of the high-pressure heat exchange circuit (10), the other end of the radiator (31) communicates with the first control valve (61), and
The battery heat exchange loop (20) comprises a second water pump (22) and a battery pack (21), wherein the second water pump (22) and the battery pack (21) are connected in series, and one end of the second water pump (22) is communicated with the first control valve (61).
12. A vehicle characterized by comprising a thermal management system (100) according to any one of claims 1-11.
CN202411989125.1A 2024-12-31 2024-12-31 Thermal management systems and vehicles Active CN119858418B (en)

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CN115626023B (en) * 2020-09-22 2024-03-01 华为技术有限公司 A thermal management system and electric vehicle
CN116787991A (en) * 2022-03-18 2023-09-22 舍弗勒技术股份两合公司 Thermal management system for vehicle, working method thereof and vehicle
CN116552198B (en) * 2023-06-13 2025-08-26 湖南湖大艾盛汽车技术开发有限公司 A thermal management system for pure electric vehicles
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CN118322784A (en) * 2024-04-29 2024-07-12 联合汽车电子有限公司 Vehicle thermal management system

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