CN116394720A - Thermal management system and electric vehicle - Google Patents

Thermal management system and electric vehicle Download PDF

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Publication number
CN116394720A
CN116394720A CN202310568934.4A CN202310568934A CN116394720A CN 116394720 A CN116394720 A CN 116394720A CN 202310568934 A CN202310568934 A CN 202310568934A CN 116394720 A CN116394720 A CN 116394720A
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CN
China
Prior art keywords
preset
inlet
outlet
way valve
thermal management
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Pending
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CN202310568934.4A
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Chinese (zh)
Inventor
林务田
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GAC Aion New Energy Automobile Co Ltd
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GAC Aion New Energy Automobile Co Ltd
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Priority to CN202310568934.4A priority Critical patent/CN116394720A/en
Publication of CN116394720A publication Critical patent/CN116394720A/en
Pending legal-status Critical Current

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    • 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 [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
    • 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 [HVAC] 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 [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • 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 [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • 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 [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3229—Cooling devices using compression characterised by constructional features, e.g. housings, mountings, conversion systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The embodiment of the application provides a thermal management system and an electric vehicle, and relates to the technical field of thermal management equipment. The thermal management system comprises a preset compressor mechanism, an electromagnetic valve assembly, an expansion valve assembly, a preset heat exchanger mechanism, a preset condenser mechanism, an evaporator, a cooler, a twelve-way valve and a battery component; the outlet of the preset compressor mechanism is respectively connected with the inlet of the first electromagnetic valve and the inlet of the second electromagnetic valve, the outlet of the first electromagnetic valve, the preset heat exchanger mechanism, the second electronic expansion valve, the cooler and the inlet of the preset compressor mechanism are sequentially connected, and the outlet of the second electromagnetic valve, the preset condenser mechanism, the first electronic expansion valve, the evaporator and the inlet of the preset compressor mechanism are sequentially connected; the inlet and outlet of the preset heat exchanger mechanism, the preset condenser mechanism and the battery component are connected with the corresponding twelve-way valve ports. The thermal management system can achieve the technical effect of improving the energy efficiency utilization rate.

Description

Thermal management system and electric vehicle
Technical Field
The application relates to the technical field of thermal management equipment, in particular to a thermal management system and an electric vehicle.
Background
At present, most of the power supply device, the electric drive device cooling system, the power battery temperature control system, the warm air system and the air conditioning system of the existing electric vehicle thermal management scheme are independent or partially coupled, and parts are large in size and high in energy consumption, or the power supply device, the electric drive device cooling system, the power battery temperature control system, the warm air system and the air conditioning system of the existing electric vehicle thermal management scheme can be coupled with each other, but the temperature control function is not comprehensive enough and the energy consumption is still high. Most of the existing electric vehicle thermal management scheme air conditioning systems are non-heat pump systems or even if the existing electric vehicle thermal management scheme air conditioning systems have heat pump functions, the energy conversion efficiency is not ideal, the waste heat energy of the whole electric vehicle cannot be fully utilized, the energy efficiency utilization rate is to be improved, the heat pump systems cannot work under low-temperature environment conditions, a PTC (Positive Temperature Coefficient ) heater is required to be used for auxiliary heating, and therefore the electric vehicle thermal management scheme air conditioning systems are relatively complex in structure, high in manufacturing cost and low in energy efficiency utilization rate.
Disclosure of Invention
An object of the embodiment of the application is to provide a thermal management system and an electric vehicle, which can achieve the technical effect of improving the energy efficiency utilization rate.
In a first aspect, embodiments of the present application provide a thermal management system comprising a preset compressor mechanism, a solenoid valve assembly, an expansion valve assembly, a preset heat exchanger mechanism, a preset condenser mechanism, an evaporator, a cooler, a twelve-way valve, a battery component;
the electromagnetic valve assembly comprises a first electromagnetic valve and a second electromagnetic valve, and the expansion valve assembly comprises a first electronic expansion valve and a second electronic expansion valve;
the outlet of the preset compressor mechanism is respectively connected with the inlet of the first electromagnetic valve and the inlet of the second electromagnetic valve, the outlet of the first electromagnetic valve, the preset heat exchanger mechanism, the second electronic expansion valve, the cooler and the inlet of the preset compressor mechanism are sequentially connected, and the outlet of the second electromagnetic valve, the preset condenser mechanism, the first electronic expansion valve, the evaporator and the inlet of the preset compressor mechanism are sequentially connected;
the cooling liquid inlet and outlet of the preset heat exchanger mechanism are respectively connected with the first port group of the twelve-way valve, the cooling liquid inlet and outlet of the preset condenser mechanism are respectively connected with the second port group of the twelve-way valve, and the inlet and outlet of the heat exchange pipeline inside the battery component is respectively connected with the third port group of the twelve-way valve.
Further, the thermal management system further comprises a first one-way valve, and an outlet of the preset heat exchanger mechanism, the first one-way valve and an inlet of the second electronic expansion valve are sequentially connected.
Further, the thermal management system further comprises a second one-way valve, and an outlet of the preset condenser mechanism, the second one-way valve and an inlet of the first electronic expansion valve are sequentially connected.
Further, the thermal management system further comprises a radiator, and the inlet and the outlet of the radiator are respectively connected with the fourth port group of the twelve-way valve.
Further, the thermal management system further comprises a gas-liquid separator, wherein an inlet of the gas-liquid separator is respectively connected with an outlet of the evaporator and an outlet of the cooler, an outlet of the gas-liquid separator is connected with an inlet of the preset compressor mechanism, and refrigerant of the evaporator and the cooler flows back to the preset compressor mechanism through the gas-liquid separator.
Further, the expansion valve assembly further comprises a third electronic expansion valve, an outlet of the preset compressor mechanism is connected to an inlet of the third electronic expansion valve, and an outlet of the third electronic expansion valve is connected to an inlet of the gas-liquid separator.
Further, the thermal management system further includes a power supply member and an electric drive member connected in series with the fifth port group of the ten-way valve.
Further, the thermal management system further includes a motor water pump, the power supply member, the electric drive member, and the motor water pump are connected in series with a fifth port group of the ten-way valve.
Further, the thermal management system further comprises a battery water pump, and an inlet and an outlet of the battery water pump are respectively connected with the sixth port group of the twelve-way valve.
In a second aspect, embodiments of the present application provide an electric vehicle comprising a thermal management system according to any one of the first aspects.
In the implementation process, the heat management system can change the flow direction and the flow rate of the refrigerant through switching control of the first electromagnetic valve, the second electromagnetic valve, the first electronic expansion valve and the second electronic expansion valve by arranging the corresponding electromagnetic valve assembly and the expansion valve assembly, so that the refrigeration and heating requirements of the heat management system (heat pump air conditioner) under various conditions can be realized; meanwhile, the flow direction of the cooling liquid is changed through the switching control of the ten-way valve, the flow directions of the cooling liquid of the preset heat exchanger mechanism, the preset condenser mechanism and the heat exchange pipeline inside the battery component are comprehensively adjusted, the coupling of the battery component temperature control system, the warm air system and the air conditioning system can be realized, the cooling, heating, temperature equalizing or heat preservation requirements of all the systems are met, and the technical effect of effectively improving the energy efficiency utilization rate can be realized.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the techniques disclosed herein.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a thermal management system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a first mode of operation of a thermal management system provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of a second mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a third mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 5 is a schematic diagram of a fourth mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a fifth mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a sixth mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 8 is a schematic diagram of a seventh mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 9 is a schematic diagram of an eighth mode of operation of the thermal management system provided by embodiments of the present application;
FIG. 10 is a schematic diagram of a ninth mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 11 is a schematic diagram of a tenth mode of operation of the thermal management system provided by embodiments of the present application;
FIG. 12 is a schematic illustration of an eleventh mode of operation of the thermal management system provided in an embodiment of the present application;
FIG. 13 is a schematic diagram of a twelfth mode of operation of the thermal management system provided in an embodiment of the present application.
Icon: presetting a compressor mechanism 1; a first solenoid valve 2; presetting a heat exchanger mechanism 3; a first one-way valve 4; a second electromagnetic valve 5; presetting a condenser mechanism 6; a second one-way valve 7; a first electronic expansion valve 8; an evaporator 9; a second electronic expansion valve 10; a cooler 11; a gas-liquid separator 12; a third electronic expansion valve 13; a motor water pump 14; a power supply member 15; an electric drive member 16; a ten-way valve 17; a battery water pump 18; a battery member 19; a heat sink 20.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or a point connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The embodiment of the application provides a thermal management system and an electric vehicle, which can be applied to the thermal management process of the electric vehicle; the heat management system can change the flow direction and the flow rate of the refrigerant through switching control of the first electromagnetic valve, the second electromagnetic valve, the first electronic expansion valve and the second electronic expansion valve by arranging the corresponding electromagnetic valve assembly and the expansion valve assembly, so that the refrigeration and heating requirements of the heat management system (heat pump air conditioner) under various conditions can be realized; meanwhile, the flow direction of the cooling liquid is changed through the switching control of the ten-way valve, the flow directions of the cooling liquid of the preset heat exchanger mechanism, the preset condenser mechanism and the heat exchange pipeline inside the battery component are comprehensively adjusted, the coupling of the battery component temperature control system, the warm air system and the air conditioning system can be realized, the cooling, heating, temperature equalizing or heat preservation requirements of all the systems are met, and the technical effect of effectively improving the energy efficiency utilization rate can be realized.
In some embodiments, the thermal management system may be applied to a thermal management process of a heat pump air conditioner, where the preset compressor mechanism, the solenoid valve assembly, the expansion valve assembly, the preset heat exchanger mechanism, the preset condenser mechanism, the evaporator, and the cooler together form a component of the heat pump air conditioner.
Alternatively, the preset compressor mechanism may be an electric compressor; the preset heat exchanger mechanism is an outdoor heat exchanger; the preset condenser mechanism is an indoor condenser.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a thermal management system according to an embodiment of the present application, where the thermal management system includes a preset compressor mechanism 1, a solenoid valve assembly, an expansion valve assembly, a preset heat exchanger mechanism 3, a preset condenser mechanism 6, an evaporator 9, a cooler 11, a twelve-way valve 17, and a battery member 19;
illustratively, the solenoid valve assembly comprises a first solenoid valve 2 and a second solenoid valve 5, and the expansion valve assembly comprises a first electronic expansion valve 8 and a second electronic expansion valve 10;
illustratively, the outlet of the preset compressor mechanism 1 is connected to the inlet of the first electromagnetic valve 2 and the inlet of the second electromagnetic valve 5 respectively, the outlet of the first electromagnetic valve 2, the preset heat exchanger mechanism 3, the second electronic expansion valve 10, the cooler 11 and the inlet of the preset compressor mechanism 1 are connected in sequence, and the outlet of the second electromagnetic valve 5, the preset condenser mechanism 6, the first electronic expansion valve 8, the evaporator 9 and the inlet of the preset compressor mechanism 1 are connected in sequence;
illustratively, the coolant inlet and outlet of the preset heat exchanger mechanism 3 are respectively connected to the first port group of the twelve-way valve 17, the coolant inlet and outlet of the preset condenser mechanism 6 are respectively connected to the second port group of the twelve-way valve 17, and the inlet and outlet of the heat exchange pipeline inside the battery member 19 is respectively connected to the third port group of the twelve-way valve 17.
Illustratively, the thermal management system further comprises a first one-way valve 4, and the outlet of the preset heat exchanger mechanism 3, the first one-way valve 4, and the inlet of the second electronic expansion valve 10 are connected in sequence.
The thermal management system further comprises a second one-way valve 7, and the outlet of the preset condenser mechanism 6, the second one-way valve 7, and the inlet of the first electronic expansion valve 8 are connected in sequence.
Illustratively, the thermal management system further includes a radiator 20, and the inlets and outlets of the radiator 20 are respectively connected to the fourth port group of the twelve-way valve 17.
Illustratively, the thermal management system further includes a gas-liquid separator 12, wherein an inlet of the gas-liquid separator 12 is connected to an outlet of the evaporator 9 and an outlet of the cooler 11, respectively, and an outlet of the gas-liquid separator 12 is connected to an inlet of the preset compressor mechanism 1, and refrigerant of the evaporator 9 and the cooler 11 flows back to the preset compressor mechanism 1 through the gas-liquid separator 12.
Illustratively, the expansion valve assembly further comprises a third electronic expansion valve 13, the outlet of the pre-set compressor mechanism 1 being connected to the inlet of the third electronic expansion valve 13, the outlet of the third electronic expansion valve 13 being connected to the inlet of the gas-liquid separator 12.
Illustratively, the thermal management system further includes a power supply member 15 and an electric drive member 16, the power supply member 15, the electric drive member 16 being connected in series with the fifth port set of the twelve-way valve 17.
Illustratively, the thermal management system further includes a motor water pump 14, a power supply member 15, an electric drive member 16, and the motor water pump 14 are connected in series with a fifth port set of the twelve-way valve 17.
Illustratively, the thermal management system further includes a battery water pump 18, and inlets and outlets of the battery water pump 18 are respectively connected to the sixth port group of the ten-way valve 17.
In some implementations, the present embodiments provide an electric vehicle including the thermal management system shown in fig. 1.
By way of example, the thermal management system can realize the refrigeration and heating requirements of the thermal management system (heat pump air conditioner) under various conditions by arranging corresponding electromagnetic valve assemblies and expansion valve assemblies, namely, by controlling the flow direction and the flow rate of the refrigerant through switching of the first electromagnetic valve 2, the second electromagnetic valve 5, the first electronic expansion valve 8 and the second electronic expansion valve 10; meanwhile, the flow direction of the cooling liquid is changed through the switching control of the ten-way valve 17, the flow directions of the cooling liquid of the preset heat exchanger mechanism 3, the preset condenser mechanism 6, the heat exchange pipeline inside the battery component 19, the power component 15 and the electric drive component 16 are comprehensively adjusted, the coupling of a temperature control system, a warm air system and an air conditioning system of the battery component 19 can be realized, the cooling, heating, temperature equalizing or heat preserving requirements of all the systems are met, and the technical effect of effectively improving the energy efficiency utilization rate can be realized.
Optionally, the heat management system can also use the waste heat of the power supply component 15 and the electric drive component 16 as a heating heat source of the battery component 19 or as a low-temperature heat source during air conditioning heat when needed, so that the energy efficiency utilization rate of the whole vehicle is further improved.
In some implementation scenarios, as shown in fig. 1, the outlet of the preset compressor mechanism 1 is connected to the inlet of the first solenoid valve 2, the inlet of the second solenoid valve 5 and the inlet of the third electronic expansion valve 13, the outlet of the solenoid valve 2 is connected to the inlet of the preset heat exchanger mechanism 3, the outlet of the preset heat exchanger mechanism 3 is connected to the inlet of the first check valve 4, the outlet of the first check valve 4 is connected to the outlet of the second check valve 7, the inlet of the first electronic expansion valve 8 and the inlet of the second electronic expansion valve 10, the outlet of the second solenoid valve 5 is connected to the inlet of the preset condenser mechanism 6, the outlet of the preset condenser mechanism 6 is connected to the inlet of the second check valve 7, the outlet of the first electronic expansion valve 8 is connected to the inlet of the evaporator 9, the outlet of the evaporator 9 is connected to the refrigerant outlet of the cooler 11 and one inlet of the gas-liquid separator 12, the outlet of the second electronic expansion valve 10 is connected to the refrigerant inlet of the cooler 11, the outlet of the gas-liquid separator 12 is connected to the inlet of the preset condenser mechanism 1 and the third electronic expansion valve 13 is connected to the inlet of the third electronic expansion valve 13;
the twelve-way valve 17 is connected as follows:
the cooling liquid inlet of the preset heat exchanger mechanism 3 is connected to one port of the twelve-way valve 17, and the cooling liquid outlet of the preset heat exchanger mechanism 3 is connected to one port of the twelve-way valve 17;
the cooling liquid inlet of the cooler 11 is connected to one port of the twelve-way valve 17, and the cooling liquid outlet of the cooler 11 is connected to one port of the twelve-way valve 17;
an inlet of the motor water pump 14 is connected to one port of the twelve-way valve 17, an outlet of the motor water pump 14 is connected to an inlet of the power supply member 15, an outlet of the power supply member 15 is connected to an inlet of the electric drive member 16, and an outlet of the electric drive member 16 is connected to one port of the twelve-way valve 17;
an inlet of the battery water pump 18 is connected to one port of the twelve-way valve 17, and an outlet of the battery water pump 18 is connected to one port of the twelve-way valve 17;
an inlet of the internal heat exchange pipeline of the battery component 19 is connected with one port of the twelve-way valve 17, and an outlet of the internal heat exchange pipeline of the battery component 19 is connected with one port of the twelve-way valve 17;
the inlet of the radiator 20 is connected to one port of the twelve-way valve 17, and the outlet of the radiator 20 is connected to one port of the twelve-way valve 17.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a first operation mode of the thermal management system according to an embodiment of the present application; the first operation mode is a cooling mode of a power supply component, an electric drive component and a battery component for refrigerating a passenger cabin of the system air conditioner;
as shown in fig. 2, under the high-temperature environment condition, when the cooling requirement is given to the passenger compartment of the vehicle and the cooling requirement is given to the battery component, the preset compressor mechanism 1 is started, the refrigerant flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange) and the first one-way valve 4, at this time, the refrigerant is separated into two paths, and the first path returns to the preset compressor mechanism 1 through the first electronic expansion valve 8 (working), the evaporator 9 (heat exchange) and the gas-liquid separator 12, so that the cooling of the passenger compartment is implemented through the evaporator 9. The second path passes through the second electronic expansion valve 10 (working), the cooler 11 (heat exchanging), the gas-liquid separator 12 and returns to the preset compressor mechanism 1, and the cooling of the battery component 19 is implemented through the cooler 11, so that another heat exchanging cycle is formed. When the power supply component and the electric drive component have cooling requirements, the motor water pump 14 works, the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return motor water pump 14, and the heat of the power supply component 15 and the electric drive component 16 is brought to the radiator 20 by the cooling liquid to exchange heat with the air outside the vehicle, so that the cooling purpose is achieved. When the temperature of the battery component 19 is higher than a set value, the battery water pump 18 works, the cooling liquid sequentially flows through the ten-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the battery component 19, the twelve-way valve 17 and the return battery water pump 18, and the heat of the battery component 19 is taken away by the cooler 11 to achieve the purpose of cooling.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a second operation mode of the thermal management system according to an embodiment of the present application; the second operation mode is a system air-conditioning passenger cabin refrigeration mode, a power supply component, an electric drive component cooling mode and a battery component temperature equalizing mode;
as shown in fig. 3, under the high-temperature environment condition, when the passenger cabin of the vehicle has a cooling requirement, the preset compressor mechanism 1 is started, the refrigerant flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange), the first one-way valve 4, the first electronic expansion valve 8 (work), the evaporator 9 (heat exchange) and the gas-liquid separator 12 to return to the preset compressor mechanism 1, and the cooling of the passenger cabin is implemented through the evaporator 9. When the power supply component and the electric drive component have cooling requirements, the motor water pump 14 works, the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return motor water pump 14, and the heat of the power supply component 15 and the electric drive component 16 is brought to the radiator 20 by the cooling liquid to exchange heat with the air outside the vehicle, so that the cooling purpose is achieved. When the battery component 19 has the temperature equalization requirement, the battery water pump 18 works, the cooling liquid sequentially flows through the ten-way valve 17, the cooler 11 (without heat exchange), the twelve-way valve 17, the battery component 19, the twelve-way valve 17 and the return battery water pump 18, and the battery component 19 achieves the purpose of equalizing the internal temperature.
Referring to fig. 4, fig. 4 is a schematic diagram illustrating a third operation mode of the thermal management system according to an embodiment of the present application; the third operation mode is a cooling mode of a power supply component, an electric drive component and a battery component when the passenger cabin of the system air conditioner is not refrigerated;
as shown in fig. 4, under the high-temperature or normal-temperature environment condition, when the cooling requirement of the passenger cabin of the vehicle is not met and the battery component has a cooling request, the preset compressor mechanism 1 is started, the refrigerant flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange), the first one-way valve 4, the second electronic expansion valve 10 (work), the cooler 11 (heat exchange), the gas-liquid separator 12 and returns to the preset compressor mechanism 1, and the cooling of the battery component 19 is implemented through the cooler 11. When the power supply component and the electric drive component have cooling requirements, the motor water pump 14 works, the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return motor water pump 14, and the heat of the power supply component 15 and the electric drive component 16 is brought to the radiator 20 by the cooling liquid to exchange heat with the air outside the vehicle, so that the cooling purpose is achieved; when the temperature of the battery component 19 is higher than a set value, the battery water pump 18 works, the cooling liquid sequentially flows through the ten-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the battery component 19, the twelve-way valve 17 and the return battery water pump 18, and the heat of the battery component 19 is taken away by the cooler 11 to achieve the purpose of cooling.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating a fourth operation mode of the thermal management system according to an embodiment of the present application; the fourth operation mode is a system air conditioner non-working, power supply component, electric drive component cooling and battery component temperature equalizing mode;
as shown in fig. 5, under high temperature or normal temperature environmental conditions, the air conditioner does not operate when there is no cooling demand in the passenger compartment of the vehicle. When the power supply component and the electric drive component have cooling requirements, the motor water pump 14 works, the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return motor water pump 14, and the heat of the power supply component 15 and the electric drive component 16 is brought to the radiator 20 by the cooling liquid to exchange heat with the air outside the vehicle, so that the cooling purpose is achieved. When the battery component 19 has the temperature equalization requirement, the battery water pump 18 works, the cooling liquid sequentially flows through the ten-way valve 17, the cooler 11 (without heat exchange), the twelve-way valve 17, the battery component 19, the twelve-way valve 17 and the return battery water pump 18, and the battery component 19 achieves the purpose of equalizing the internal temperature.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating a fifth operation mode of the thermal management system according to an embodiment of the present application; the fifth operation mode is a cooling mode of a radiator shared by a power supply component, an electric drive component and a battery component for refrigerating a passenger cabin of the system air conditioner;
as shown in fig. 6, under normal temperature environment conditions, when the passenger cabin of the vehicle has a cooling requirement, the preset compressor mechanism 1 is started, the refrigerant flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange), the first one-way valve 4, the first electronic expansion valve 8 (work), the evaporator 9 (heat exchange) and the gas-liquid separator 12 to return to the preset compressor mechanism 1, and cooling of the passenger cabin is implemented through the evaporator 9. At this time, the power supply member, the electric driving member and the battery member can share the radiator for cooling, the motor water pump 14 and the battery water pump 18 work, and the cooling liquid sequentially flows through the power supply member 15, the electric driving member 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17, the battery water pump 18, the twelve-way valve 17, the battery member 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (heat exchange), the twelve-way valve 17, the cooler 11 (no heat exchange), the twelve-way valve 17 and the return motor water pump 14 to form a heat dissipation cycle.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a sixth operation mode of the thermal management system according to an embodiment of the present application; the sixth operation mode is a cooling mode in which the system air conditioner does not work, and the power supply component, the electric drive component and the battery component share a radiator;
as shown in fig. 7, under normal temperature environmental conditions, the air conditioner does not operate when the vehicle passenger compartment has no cooling requirement. At this time, the power supply member, the electric driving member and the battery member may share the radiator for cooling, the motor water pump 14 and the battery water pump 18 operate, and the cooling liquid sequentially flows through the power supply member 15, the electric driving member 16, the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17, the battery water pump 18, the twelve-way valve 17, the battery member 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (no heat exchange), the twelve-way valve 17, the cooler 11 (no heat exchange), the twelve-way valve 17 and the return motor water pump 14 to form a heat dissipation cycle.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a seventh operation mode of the thermal management system according to an embodiment of the present application; the seventh operation mode is a system air conditioner heat pump heating mode, and a power supply component and an electric drive component waste heat heating battery component mode;
as shown in fig. 8, under low or low temperature environmental conditions, when there is a heating demand in the passenger compartment of the vehicle and the temperature of the battery component is not higher than the set value, the preset compressor mechanism 1 is started, and the refrigerant flows through the second electromagnetic valve 5, the preset condenser mechanism 6 (heat exchange), the second check valve 7, the second electronic expansion valve 10 (work), the cooler 11 (heat exchange), the gas-liquid separator 12, and returns to the preset compressor mechanism 1, thereby forming a heat pump heating cycle. At this time, the battery water pump 18 works, and the cooling liquid sequentially flows through the twelve-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return battery water pump 18 to form a circulation to provide a heat source for the heat pump. When the battery component has the heating and heat preservation requirement, the motor water pump 14 works, the cooling liquid sequentially flows through the power component 15, the electric driving component 16, the twelve-way valve 17, the battery component 19 and the twelve-way valve 17 to return to the motor water pump 14, and the heat of the power component 15 and the electric driving component 16 heats and preserves the heat of the battery component 19.
Referring to fig. 9, fig. 9 is a schematic diagram illustrating an eighth operation mode of the thermal management system according to an embodiment of the present application; the eighth operation mode is a system air conditioner heat pump heating mode and a battery component cooling mode;
as shown in fig. 9, under low or low temperature environment conditions, when the passenger compartment of the vehicle has a heating requirement and the temperature of the battery component is higher than a set value (including low temperature fast charge), the preset compressor mechanism 1 is started, and the refrigerant flows through the second electromagnetic valve 5, the preset condenser mechanism 6 (heat exchange), the second one-way valve 7, the second electronic expansion valve 10 (working), the cooler 11 (heat exchange), the gas-liquid separator 12 and returns to the preset compressor mechanism 1 to form a heat pump heating cycle. At this time, the battery water pump 18 works, and the cooling liquid sequentially flows through the ten-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the battery component 19, the twelve-way valve 17 and the battery water pump 18 to form circulation to provide a heat source for the heat pump, and meanwhile, the heat of the battery component 19 is taken away by the cooler 11 to achieve the purpose of cooling. When the power supply component and the electric drive component have cooling requirements, the motor water pump 14 works, the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the radiator 20 (heat exchange) and the twelve-way valve 17 to return to the motor water pump 14, and the heat of the power supply component 15 and the electric drive component 16 is brought to the radiator 20 by the cooling liquid to exchange heat with the air outside the vehicle, so that the cooling purpose is achieved.
Referring to fig. 10, fig. 10 is a schematic diagram illustrating a ninth operation mode of the thermal management system according to the embodiment of the present application; the ninth operation mode is a mode of heating the passenger cabin and the battery component simultaneously by heating the system air conditioner heat pump;
as shown in fig. 10, under the lower or low temperature environment condition, when the passenger cabin of the vehicle has a heating requirement and the battery also needs to be heated, the preset compressor mechanism 1 is started, at this time, the refrigerant is separated into two paths, the first path flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange), the first one-way valve 4, the second path flows through the second electromagnetic valve 5, the preset condenser mechanism 6 (heat exchange) and the second one-way valve 7, and after the two paths of refrigerants are combined, the two paths flow through the second electronic expansion valve 10 (work), the cooler 11 (heat exchange) and the gas-liquid separator 12 returns to the preset compressor mechanism 1, so as to form a heat pump heating cycle. At this time, the battery water pump 18 works, and the cooling liquid sequentially flows through the twelve-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return battery water pump 18 to form a circulation to provide a heat source for the heat pump. Simultaneously, the motor water pump 14 works, and the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the battery component 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (heat exchange), the twelve-way valve 17 and the return motor water pump 14 to form circulation, so that the battery component 19 is heated.
Referring to fig. 11, fig. 11 is a schematic diagram illustrating a tenth operation mode of the thermal management system according to the embodiment of the present application; the tenth operation mode is a system air conditioner heat pump heating battery component mode;
as shown in fig. 11, under the lower or low temperature environment condition, when the passenger cabin of the vehicle has no heating requirement and the battery needs to be heated, the preset compressor mechanism 1 is started, and the refrigerant flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange), the first check valve 4, the second electronic expansion valve 10 (work), the cooler 11 (heat exchange) and the gas-liquid separator 12 to return to the preset compressor mechanism 1 to form a heat pump heating cycle; at this time, the motor water pump 14 works, and the cooling liquid sequentially flows through the power supply component 15, the electric drive component 16, the twelve-way valve 17, the cooler 11 (heat exchange), the twelve-way valve 17, the radiator 20 (heat exchange), the twelve-way valve 17 and the return motor water pump 14 to form a circulation to provide a heat source for the heat pump; meanwhile, the battery water pump 18 works, and the cooling liquid sequentially flows through the ten-way valve 17, the battery component 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (heat exchange), the twelve-way valve 17 and the return battery water pump 18 to form circulation, so that the battery component 19 is heated.
Referring to fig. 12, fig. 12 is a schematic diagram illustrating an eleventh operation mode of the thermal management system according to an embodiment of the present application; the eleventh operation mode is an air conditioner self-heating and heating mode, and the battery component is in a uniform temperature mode;
as shown in fig. 12, under the low-temperature or lower-temperature environment condition, when the passenger cabin of the vehicle has a heating requirement and the temperature of the battery component is not lower than a set value, the preset compressor mechanism 1 is started, at this time, the refrigerant is separated into two paths, the first path flows through the third electronic expansion valve 13 (working), the gas-liquid separator 12 and returns to the preset compressor mechanism 1 to play a role of supplementing air and increasing enthalpy, and the second path flows through the second electromagnetic valve 5, the preset condenser mechanism 6 (heat exchange), the second one-way valve 7, the first electronic expansion valve 8 (working), the evaporator 9 (heat exchange), the gas-liquid separator 12 and returns to the preset compressor mechanism 1 to form a heat pump heating cycle. When the battery component has the temperature-equalizing heat preservation requirement, the motor water pump 14 works, the cooling liquid sequentially flows through the power component 15, the electric drive component 16, the twelve-way valve 17, the battery component 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (without heat exchange), and the twelve-way valve 17 returns to the motor water pump 14, and the battery component 19 achieves the purpose of temperature-equalizing heat preservation.
Referring to fig. 13, fig. 13 is a schematic diagram illustrating a twelfth operation mode of the thermal management system according to the embodiment of the present application; the twelfth operation mode is a mode of heating the passenger cabin and the battery component simultaneously by self-generating heat of the air conditioner;
as shown in fig. 13, under the low-temperature or lower-temperature environment condition, when the passenger cabin of the vehicle has a heating requirement and the temperature of the battery component is lower than a set value, the preset compressor mechanism 1 is started, at this time, the refrigerant is separated into three paths, the first path flows through the third electronic expansion valve 13 (working), the gas-liquid separator 12 and returns to the preset compressor mechanism 1 to play a role of supplementing air and increasing enthalpy, the second path flows through the first electromagnetic valve 2, the preset heat exchanger mechanism 3 (heat exchange) and the first one-way valve 4, the third path flows through the second electromagnetic valve 5, the preset condenser mechanism 6 (heat exchange) and the second one-way valve 7, and the second and third paths of refrigerant are converged and then flow through the first electronic expansion valve 8 (working), the evaporator 9 (heat exchange), the gas-liquid separator 12 and returns to the preset compressor mechanism 1 to form a heat pump heating cycle. When the battery member has a heating requirement, the motor water pump 14 works, and the cooling liquid sequentially flows through the power member 15, the electric driving member 16, the twelve-way valve 17, the battery member 19, the twelve-way valve 17, the preset heat exchanger mechanism 3 (heat exchange), and the twelve-way valve 17 returns to the motor water pump 14 to heat the battery member 19.
By way of example, with reference to fig. 1 to 13, the thermal management system provided in the embodiment of the application is a novel electric vehicle thermal management system, and through the parallel design of the air-cooled preset condenser mechanism and the liquid-cooled preset heat exchanger mechanism, the heat pump air conditioner is flexible in switching between cooling and heating, and the system is simplified in energy-efficient structure, and through the self-generating heat function design, sufficient heating capacity can be provided under the low-temperature environment condition with less heating capacity of the existing heat pump system, so that the thermal energy requirement of a passenger cabin is met, the PTC heater is replaced and cancelled, and the manufacturing cost is greatly reduced. The switching connection of the ten-way valve is matched, so that perfect coupling of a power supply component, an electric drive component cooling system, a battery component temperature control system and a heat pump air conditioning system can be realized, the requirements of cooling, heating, heat preservation or temperature equalization of all the systems are met, under various vehicle use working conditions, all the thermal management objects are in proper working conditions, the use requirements of the thermal management objects are met, the reliability and the value are improved, and the waste heat of the power supply component and the electric drive component can be used as a heating heat source of the battery component or as a low-temperature heat source when air conditioning is carried out, so that the energy efficiency utilization rate of the whole vehicle is improved, and the endurance mileage of the electric vehicle is increased. The heat management system provided by the application has the advantages of ingenious design, perfect functions, high cost performance and low manufacturing cost.
In all embodiments of the present application, "large" and "small" are relative terms, "more" and "less" are relative terms, "upper" and "lower" are relative terms, and the description of such relative terms is not repeated herein.
It should be appreciated that reference throughout this specification to "in this embodiment," "in an embodiment of the application," or "as an alternative" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearances of the phrases "in this embodiment," "in this application embodiment," or "as an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art will also appreciate that the embodiments described in the specification are all alternative embodiments and that the acts and modules referred to are not necessarily required in the present application.
In various embodiments of the present application, it should be understood that the size of the sequence numbers of the above processes does not mean that the execution sequence of the processes is necessarily sequential, and the execution sequence of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A thermal management system, comprising a preset compressor mechanism, a solenoid valve assembly, an expansion valve assembly, a preset heat exchanger mechanism, a preset condenser mechanism, an evaporator, a cooler, a twelve-way valve and a battery component;
the electromagnetic valve assembly comprises a first electromagnetic valve and a second electromagnetic valve, and the expansion valve assembly comprises a first electronic expansion valve and a second electronic expansion valve;
the outlet of the preset compressor mechanism is respectively connected with the inlet of the first electromagnetic valve and the inlet of the second electromagnetic valve, the outlet of the first electromagnetic valve, the preset heat exchanger mechanism, the second electronic expansion valve, the cooler and the inlet of the preset compressor mechanism are sequentially connected, and the outlet of the second electromagnetic valve, the preset condenser mechanism, the first electronic expansion valve, the evaporator and the inlet of the preset compressor mechanism are sequentially connected;
the cooling liquid inlet and outlet of the preset heat exchanger mechanism are respectively connected with the first port group of the twelve-way valve, the cooling liquid inlet and outlet of the preset condenser mechanism are respectively connected with the second port group of the twelve-way valve, and the inlet and outlet of the internal heat exchange pipeline of the battery component is respectively connected with the third port group of the twelve-way valve.
2. The thermal management system of claim 1, further comprising a first one-way valve, wherein the outlet of the preset heat exchanger mechanism, the first one-way valve, and the inlet of the second electronic expansion valve are sequentially connected.
3. The thermal management system of claim 1 or 2, further comprising a second one-way valve, wherein the outlet of the pre-set condenser mechanism, the second one-way valve, and the inlet of the first electronic expansion valve are connected in sequence.
4. The thermal management system of claim 1, further comprising a heat sink having an inlet and an outlet respectively connected to the fourth port set of the twelve-way valve.
5. The thermal management system of claim 1, further comprising a gas-liquid separator, wherein an inlet of the gas-liquid separator is connected to an outlet of the evaporator and an outlet of the cooler, respectively, and an outlet of the gas-liquid separator is connected to an inlet of the predetermined compressor mechanism, and refrigerant of the evaporator and the cooler flows back to the predetermined compressor mechanism through the gas-liquid separator.
6. The thermal management system of claim 5, wherein the expansion valve assembly further comprises a third electronic expansion valve, the outlet of the pre-determined compressor mechanism being connected to the inlet of the third electronic expansion valve, the outlet of the third electronic expansion valve being connected to the inlet of the gas-liquid separator.
7. The thermal management system of claim 1, further comprising a power supply member and an electrical drive member, the power supply member and the electrical drive member being connected in series with a fifth port set of the ten-way valve.
8. The thermal management system of claim 7, further comprising a motor water pump, wherein the power supply member, the electric drive member, and the motor water pump are connected in series with a fifth port set of the ten-way valve.
9. The thermal management system of claim 1 or 8, further comprising a battery water pump having an inlet and an outlet connected to the sixth port set of the twelve-way valve, respectively.
10. An electric vehicle comprising a thermal management system according to any one of claims 1 to 9.
CN202310568934.4A 2023-05-18 2023-05-18 Thermal management system and electric vehicle Pending CN116394720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310568934.4A CN116394720A (en) 2023-05-18 2023-05-18 Thermal management system and electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310568934.4A CN116394720A (en) 2023-05-18 2023-05-18 Thermal management system and electric vehicle

Publications (1)

Publication Number Publication Date
CN116394720A true CN116394720A (en) 2023-07-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310568934.4A Pending CN116394720A (en) 2023-05-18 2023-05-18 Thermal management system and electric vehicle

Country Status (1)

Country Link
CN (1) CN116394720A (en)

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