WO2023068645A1 - 냉난방 베이퍼 인젝션 시스템 및 이에 사용되는 베이퍼 인젝션 모듈 - Google Patents
냉난방 베이퍼 인젝션 시스템 및 이에 사용되는 베이퍼 인젝션 모듈 Download PDFInfo
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- WO2023068645A1 WO2023068645A1 PCT/KR2022/015451 KR2022015451W WO2023068645A1 WO 2023068645 A1 WO2023068645 A1 WO 2023068645A1 KR 2022015451 W KR2022015451 W KR 2022015451W WO 2023068645 A1 WO2023068645 A1 WO 2023068645A1
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- refrigerant
- expansion valve
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- liquid separator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
- B60H1/3213—Control means therefor for increasing the efficiency in a vehicle heat pump
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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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00914—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is a bypass of the condenser
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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 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
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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 devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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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 devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00907—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant changes and an evaporator becomes condenser
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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 devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
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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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
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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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
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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 devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/323—Cooling devices using compression characterised by comprising auxiliary or multiple systems, e.g. plurality of evaporators, or by involving auxiliary cooling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
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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 devices
- B60H1/32—Cooling devices
- B60H2001/3269—Cooling devices output of a control signal
- B60H2001/3285—Cooling devices output of a control signal related to an expansion unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/047—Water-cooled condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—Component parts or details not otherwise provided for in this subclass
- F25B2400/13—Economisers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—Component parts or details not otherwise provided for in this subclass
- F25B2400/23—Separators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Definitions
- the embodiment relates to a heating/cooling vapor injection system and a vapor injection module using the same. More specifically, it relates to a heating/cooling vapor injection system implementing a cooling/heating system using one gas-liquid separator without a separate directional control valve and a vapor injection module using the same.
- electric vehicles and hybrid vehicles are the most attention-seeking fields in the automobile industry in recent years. These electric vehicles and hybrid vehicles are equipped with batteries to provide driving power, and the batteries are used not only for driving but also for heating and cooling.
- a heat pump refers to absorbing low-temperature heat and moving the absorbed heat to a high-temperature temperature.
- a heat pump as an example has a cycle in which a liquid refrigerant evaporates in an evaporator, takes heat from the surroundings to become a gas, and then liquefies while discharging heat to the surroundings by a condenser. If this is applied to an electric vehicle or a hybrid vehicle, there is an advantage in securing a heat source that is insufficient in conventional air conditioning cases.
- a vapor injection system is used to increase cooling and heating performance.
- the vapor injection system has a structure in which gaseous refrigerant flows back into a compressor using a gas-liquid separator in a refrigerant circulation system for heating and cooling and supplies liquid refrigerant to an evaporator or chiller.
- Prior Document 1 Japanese Laid-Open Publication No. 2020-176824
- a divergence point is created at the rear end of the indoor unit and conversion to cooling and heating modes is performed using a valve.
- four directional control valves are required.
- An object of the embodiment is to provide a vapor injection system capable of simultaneous cooling and heating using a minimum number of valves.
- a compressor for compressing and circulating the refrigerant; A first branch portion into which the compressed refrigerant is introduced and branched; a first refrigerant line in which a refrigerant is moved by branching from the first branch, and a condenser and a first expansion valve are disposed; a second refrigerant line branched from the first branch and moving the refrigerant, and in which an indoor unit and a second expansion valve are disposed; a gas-liquid separator into which the refrigerant passing through the first refrigerant line or the second refrigerant line flows; and a second branch into which the refrigerant passing through the gas-liquid separator is introduced, wherein the gas-liquid separator moves the liquid refrigerant to the second branch and moves the gaseous refrigerant to the compressor.
- a third refrigerant line branched from the second branch to move the refrigerant and in which a third expansion valve and an evaporator are disposed; a fourth refrigerant line branched off from the second branch and moving refrigerant, and in which a fourth expansion valve and a chiller are disposed; and an accumulator configured to separate the refrigerant moving from the refrigerant in the third refrigerant line or the fourth refrigerant line into gas and liquid and transfer the refrigerant in the gas phase to the compressor.
- the refrigerant passing through the compressor may move to the first refrigerant line or the second refrigerant line through opening and closing of the first expansion valve or the second expansion valve.
- the liquid refrigerant separated from the gas-liquid separator and moving to the second branch unit moves to the third refrigerant line or the fourth refrigerant line through opening and closing of the third expansion valve or the fourth expansion valve. that can be characterized.
- a check valve may be disposed in the fifth refrigerant line through which the gaseous refrigerant separated in the gas-liquid separator flows into the compressor.
- the evaporator and the indoor unit may be disposed inside an air conditioning case, and a PTC heater may be disposed inside the air conditioning case.
- the first expansion valve is closed and the second expansion valve is opened so that the refrigerant passing through the compressor moves along the second refrigerant line and flows into the gas-liquid separator.
- the liquid refrigerant passing through the gas-liquid separator may move along the third refrigerant line when the third expansion valve is opened and the fourth expansion valve is closed.
- the first expansion valve is opened and the second expansion valve is closed so that the refrigerant passing through the compressor moves along the first refrigerant line and flows into the gas-liquid separator,
- the liquid refrigerant passing through the gas-liquid separator may move along the fourth refrigerant line when the third expansion valve is closed and the fourth expansion valve is opened.
- the condenser may be characterized in that an air-cooled condenser or a water-cooled condenser is used.
- another embodiment of the present invention is a housing in which one check valve and the first to fourth expansion valves are disposed; a gas-liquid separator disposed to face the housing; a first confluence connecting a first expansion valve and a second expansion valve to the gas-liquid separator; a second branch connecting the third expansion valve and the fourth expansion valve to the gas-liquid separator; and a fifth refrigerant line connecting the check valve and the gas-liquid separator.
- the refrigerant introduced into the gas-liquid separator through the first confluence is separated into a gaseous refrigerant and a liquid refrigerant inside the gas-liquid separator, and the separated gaseous refrigerant moves to the fifth refrigerant line,
- the separated liquid refrigerant may move to the second branch.
- the first expansion valve is opened and the second expansion valve is closed so that the refrigerant passing through the first expansion valve flows into the gas-liquid separator through the first junction, and the gas-liquid separator
- the gaseous refrigerant separated in the separator moves to the fifth refrigerant line, and the liquid refrigerant moves to the second branch, but the third expansion valve is closed and the fourth expansion valve is opened to move the second refrigerant.
- the liquid refrigerant flowing into the branch may pass through the fourth expansion valve.
- the first expansion valve is closed and the second expansion valve is opened so that the refrigerant passing through the second expansion valve flows into the gas-liquid separator through the first junction, and the gas-liquid separator
- the vapor phase refrigerant separated in the separator moves to the fifth refrigerant line, and the liquid phase refrigerant moves to the second branch, the third expansion valve is open and the fourth expansion valve is closed to move the second refrigerant.
- the liquid refrigerant introduced into the branch may pass through the third expansion valve.
- FIG. 1 is a diagram showing the structure of a cooling and heating vapor injection system according to an embodiment of the present invention
- FIG 2 is a diagram showing the flow of the refrigerant in the cooling mode in Figure 1,
- FIG 3 is a diagram showing the flow of the refrigerant in the heating mode in Figure 1,
- FIG. 4 is a view showing the structure of a vapor injection module according to another embodiment of the present invention.
- FIG. 5 is a view showing the location of the vapor injection module shown in FIG. 4 in the system of FIG. 1;
- FIG. 6 is a diagram showing the flow of refrigerant in the heating mode of FIG. 4;
- FIG. 7 is a diagram illustrating a flow of refrigerant in the cooling mode of FIG. 4 .
- the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in a variety of different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively implemented. can be used by combining and substituting.
- the singular form may also include the plural form unless otherwise specified in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, A, B, and C are combined. may include one or more of all possible combinations.
- first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention.
- a component when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected to, combined with, or connected to the other component, but also with the component. It may also include the case of being 'connected', 'combined', or 'connected' due to another component between the other components.
- FIG. 1 is a diagram showing the structure of a cooling and heating vapor injection system according to an embodiment of the present invention.
- the heating and cooling vapor injection system includes a compressor 100, a first refrigerant line 200, a second refrigerant line 300, a gas-liquid separator 400, a third refrigerant line ( 500), a fourth refrigerant line 600 and an accumulator 700.
- the compressor 100 may compress and circulate the refrigerant.
- the compressor 100 is driven by receiving power from an engine (internal combustion engine) or a motor while sucking in and compressing the refrigerant, and then discharging it to the first branch unit 110 in a high-temperature and high-pressure gas state.
- the first branch unit 110 may be branched when the refrigerant compressed from the compressor 100 is introduced.
- the refrigerant moving to the first branch 110 may be separated and introduced into the first refrigerant line 200 and the second refrigerant line 300 in the first branch 110 .
- the movement of the refrigerant to the first refrigerant line 200 and the second refrigerant line 300 may be controlled by whether an expansion valve disposed in each refrigerant line is opened or closed.
- the refrigerant diverged from the first branch 110 moves, and a condenser and a first expansion valve 220 may be disposed.
- the condenser 210 may condense the refrigerant compressed by the compressor 100 .
- an air-cooled condenser 210 and a water-cooled condenser 210 may be used as the condenser 210.
- condensation may be performed by exchanging heat with the cooling water moving in the cooling water circulation line of the vehicle.
- the first expansion valve 220 is disposed on the outlet side of the condenser 210 and can perform expansion of the refrigerant, flow control, and opening/closing functions.
- the refrigerant branched from the first branch part 110 moves, and the indoor unit 310 and the second expansion valve 320 may be disposed.
- the indoor unit 310 may be provided in an air conditioning case 800 disposed in the interior of a vehicle, and the indoor unit 310 exchanges heat with air blown by the refrigerant discharged from the compressor 100 to use heat dissipated from the refrigerant to cool the indoor air. can play a role in heating.
- a PTC (Positive Temperature Coefficient) heater may be disposed inside the air conditioning case 800 of the vehicle.
- the PTC heater 810 is disposed inside the air conditioning case 800 together with the indoor unit 310 and is used as a means to heat air, and as a means to compensate for this when the indoor unit 310 does not meet the temperature required for vehicle air conditioning. can be used
- the second expansion valve 320 is disposed on the outlet side of the indoor unit 310 and can perform expansion of refrigerant, flow control, and opening/closing functions.
- the first expansion valve 220 and the second expansion valve 320 can be opened and closed according to the air conditioning mode, and can control the movement line of the refrigerant.
- the refrigerant passing through the compressor 100 passes through the first expansion valve 220 or the second expansion valve 320 to be decompressed and expanded to move to the first branch unit 110 .
- the gas-liquid separator 400 separates the refrigerant that has passed through the first branch 110 into gaseous and liquid refrigerants, moves liquid refrigerant from the separated refrigerant to the second branch 450, and parasitic refrigerant is stored in the compressor. It can be reintroduced to (100).
- the gas-liquid separator 400 serves to separate the refrigerant into a gas phase and a liquid phase, like the accumulator 700 disposed before the refrigerant circulates through the refrigerant line and flows into the compressor 100 .
- the accumulator 700 supplies gaseous refrigerant to the compressor 100, but the gas-liquid separator 400 allows the separated liquid refrigerant to flow as it is.
- a check valve 411 may be provided in the fifth refrigerant line 410 through which the gaseous refrigerant separated by the gas-liquid separator 400 is reintroduced into the compressor 100 .
- the check valve 411 disposed in the fifth refrigerant line 410 may control the movement of the gaseous refrigerant moving through the fifth refrigerant line 410 as needed.
- the liquid refrigerant that has passed through the gas-liquid separator 400 moves in the second branch unit 450, and the third refrigerant line 500 and the fourth refrigerant line 600 may be branched in the second branch unit 450. there is.
- the liquid refrigerant separated in the gas-liquid separator 400 moves in the third refrigerant line 500 , and a third expansion valve 510 and an evaporator 520 may be disposed.
- the third expansion valve 510 is disposed at the inlet side of the evaporator 520, and can perform expansion of the refrigerant, flow control, and opening/closing functions.
- the evaporator 520 may be disposed inside the air conditioning case 800 together with the indoor unit 310 to cool and heat the interior of the vehicle.
- the evaporator 520 is supplied with the low-temperature, low-pressure refrigerant discharged from the third expansion valve 510, and the air flowing inside the air conditioning case 800 through the blower passes through the evaporator 520 It exchanges heat with the low-temperature, low-pressure refrigerant inside, turns it into cold air, and then is discharged into the interior of the vehicle to cool the interior of the vehicle.
- the liquid refrigerant separated in the gas-liquid separator 400 moves in the fourth refrigerant line 600 , and a fourth expansion valve 610 and a chiller 620 may be disposed.
- the fourth expansion valve 610 is disposed at the inlet side of the chiller 620, and can perform functions such as expansion of the refrigerant, control of flow rate, and opening/closing of the refrigerant.
- the chiller 620 is supplied with the low-temperature, low-pressure refrigerant discharged from the fourth expansion valve 610 and can perform heat exchange with the coolant moving in the coolant line of the vehicle air conditioning system.
- the cooling water cooled while passing through the chiller 620 may cool heating components such as a vehicle battery.
- the accumulator 700 is installed on the refrigerant circulation line at the inlet side of the compressor 100, the refrigerant passing through the evaporator 520 and/or the chiller 620 is joined, and the liquid refrigerant and the gaseous refrigerant are separated from the refrigerant to form a gaseous refrigerant. Only the compressor 100 is supplied, and surplus refrigerant can be stored. A suction port of the compressor 100 is connected to an outlet of the gaseous refrigerant of the accumulator 700, and through this, it is possible to prevent liquid refrigerant from being sucked into the compressor 100.
- FIG. 2 is a diagram showing the flow of refrigerant in a cooling mode in FIG. 1 .
- the compressor 100 in the cooling mode, operates in the refrigerant circulation line, and the high-temperature and high-pressure refrigerant is discharged from the compressor 100 .
- the refrigerant discharged from the compressor 100 moves to the first branch 110 .
- the first expansion valve 220 is opened and the second expansion valve 320 is closed so that the refrigerant discharged from the compressor 100 moves along the first refrigerant line 200 .
- the refrigerant discharged from the compressor 100 flows into the condenser 210, and the refrigerant condensed while passing through the condenser 210 is first expanded and reduced in pressure while passing through the first expansion valve 220 to move.
- the refrigerant passing through the first confluence 330 flows into the gas-liquid separator 400, the liquid refrigerant separated in the gas-liquid separator 400 moves to the second branch 450, and the gaseous refrigerant It may be reintroduced into the compressor 100.
- the liquid refrigerant passing through the second branch 450 moves along the third refrigerant line 500 when the third expansion valve 510 is opened and the fourth expansion valve 610 is closed.
- the third expansion valve 510 While moving along the third expansion valve 510, it is secondarily expanded and decompressed to move, and the expanded and reduced refrigerant passes through the evaporator 520 and exchanges heat with air blown by a blower (not shown) of the air conditioning case 800. As the refrigerant evaporates, the air is cooled, and the cooled air is supplied to the interior of the vehicle to cool the interior of the vehicle.
- the refrigerant evaporated in the evaporator 520 flows into the compressor 100 again through the accumulator 700 .
- the fourth expansion valve 610 is opened together with the third expansion valve 510 .
- the refrigerant expanded while passing through the fourth expansion valve 610 passes through the chiller 620 and exchanges heat with the cooling water so that the refrigerant evaporates and the cooling water can be cooled.
- the refrigerant evaporated in the chiller 620 may be introduced into the compressor 100 again through the accumulator 700 through the second confluence 650 and circulated.
- FIG. 3 is a diagram showing the flow of the refrigerant in the heating mode in FIG. 1;
- the compressor 100 in the heating mode, operates in the refrigerant circulation line, and the high-temperature and high-pressure refrigerant is discharged from the compressor 100 .
- the refrigerant discharged from the compressor 100 moves to the first branch 110 .
- the first expansion valve 220 is closed and the second expansion valve 320 is opened so that the refrigerant discharged from the compressor 100 moves along the second refrigerant line 300 .
- the refrigerant discharged from the compressor 100 flows into the indoor unit 310, and the refrigerant passing through the indoor unit 310 exchanges heat with air blown by a blower (not shown) of the air conditioning case 800 and is heated. Air is supplied to the interior of the vehicle to cool the interior of the vehicle.
- the PTC heater 810 is operated to raise the temperature to a required temperature and supply it to the inside of the vehicle.
- the gaseous refrigerant may be re-introduced into the compressor 100.
- the liquid refrigerant passing through the second branch 450 moves along the fourth refrigerant line 600 when the third expansion valve 510 is closed and the fourth expansion valve 610 is opened.
- the refrigerant expanded while passing through the fourth expansion valve 610 passes through the chiller 620 and exchanges heat with the cooling water so that the refrigerant evaporates and the cooling water can be cooled.
- the refrigerant evaporated in the chiller 620 may be introduced into the compressor 100 again through the accumulator 700 through the second confluence 650 and circulated.
- This embodiment of the present invention unifies the position behind the condenser 210 in cooling and heating by not using an outdoor unit as a heat absorbing device for heating, and through this, one gas-liquid separator 400 without using a separate direction change valve
- a heating and cooling system can be implemented using
- a vapor injection module 1000 according to another embodiment of the present invention will be described with reference to the accompanying drawings. However, descriptions of the same as those described in the cooling and heating vapor injection system according to an embodiment of the present invention will be omitted.
- FIG. 4 is a view showing the structure of a vapor injection module 1000 according to another embodiment of the present invention
- FIG. 5 is a view showing the location of the vapor injection module 1000 shown in FIG. 4 in the system of FIG. 1
- FIG. 6 is a diagram showing the flow of refrigerant in the heating mode of FIG. 4
- FIG. 7 is a diagram showing the flow of refrigerant in the cooling mode of FIG. 4 .
- FIGS. 4 to 7 the same reference numerals as those of FIGS. 1 to 3 denote the same members, and detailed descriptions thereof will be omitted.
- the vapor injection module 1000 includes a housing 1100, a gas-liquid separator 400, a first confluence 330, and a second branch 450 ) and a fifth refrigerant line 410.
- the housing 1100 may provide a space in which one check valve 411 and the first to fourth expansion valves 610 are disposed.
- the housing 1100 may be provided in the shape of a square pillar, and the check valve 411 and the first to fourth expansion valves 610 may be disposed in the longitudinal direction.
- This longitudinal arrangement structure is a structure for communication with the gas-liquid separator 400 through which the check valve 411 and the first to fourth expansion valves 610 pass through, and space utilization can be maximized.
- the first to fourth expansion valves 610 disposed inside the housing 1100 may use various well-known expansion valve structures for expanding the introduced refrigerant.
- a ball valve structure may be used as the first to fourth expansion valves 610 .
- the gas-liquid separator 400 may be disposed to face the housing 1100 .
- the gas-liquid separator 400 may separate the refrigerant flowing through the first expansion valve 220 and the second expansion valve 320 into a gaseous refrigerant and a liquid refrigerant.
- the third expansion valve 510 and the fourth expansion valve 610 through which the liquid refrigerant moves may be connected to the lower end of the gas-liquid separator 400,
- the check valve 411 through which the gaseous refrigerant moves may be connected to the top of the gas-liquid separator 400, and the first expansion valve 220 and the second expansion valve 320 are connected to the check valve 411 and the third expansion valve 411. It may be connected to the gas-liquid separator 400 between the valve 510 and the fourth expansion valve 610 .
- the first merging part 330 is disposed in a central region of the gas-liquid separator 400 and may connect the first expansion valve 220 and the second expansion valve 320 to the gas-liquid separator 400 .
- the first confluence part 330 is connected to the first expansion valve 220 and the second expansion valve 320, and the first refrigerant coolant depends on whether the first expansion valve 220 and the second expansion valve 320 are opened or closed.
- the refrigerant moving through the line 200 or the second refrigerant line 300 may flow into the gas-liquid separator 400 .
- the second branch part 450 may be disposed at the lower end of the gas-liquid separator 400, that is, below the first confluence part 330, and the third expansion valve 510 and the fourth expansion valve 610 are connected to the gas-liquid separator. (400) can be connected.
- the liquid refrigerant separated from the gas-liquid separator 400 flows through the third refrigerant line 500 or the fourth refrigerant line 500. It can move to the refrigerant line 600.
- the fifth refrigerant line 410 may be disposed at the upper end of the gas-liquid separator 400, that is, at the upper part of the first confluence part 330, and may connect the check valve 411 and the refrigerant passage. In the fifth refrigerant line 410 , the gaseous refrigerant separated from the gas-liquid separator 400 may flow into the compressor 100 depending on whether the check valve 411 is opened or closed.
- the refrigerant flowing into the gas-liquid separator 400 through the first confluence 330 is divided into a gaseous refrigerant and a liquid refrigerant inside the gas-liquid separator 400, and the separated gaseous refrigerant is Moving to the fifth refrigerant line 410, the separated liquid refrigerant moves to the second branch 450.
- the first expansion valve 220 is opened and the second expansion valve 320 is closed so that the refrigerant passing through the first expansion valve 220 enters the first confluence 330.
- the gas-liquid refrigerant flows into the gas-liquid separator 400 through the gas-liquid separator 400, and the gaseous refrigerant separated in the gas-liquid separator 400 moves to the fifth refrigerant line 410.
- the liquid refrigerant moves to the second branch 450, the third expansion valve 510 is closed and the fourth expansion valve 610 is opened so that the liquid phase flowing into the second branch 450
- the refrigerant passes through the fourth expansion valve 610 and moves to the fourth refrigerant line 600 .
- the first expansion valve is closed and the second expansion valve 320 is opened so that the refrigerant passing through the second expansion valve 320 is gas-liquid through the first junction 330
- the gaseous refrigerant introduced into the separator 400 and separated in the gas-liquid separator 400 moves to the fifth refrigerant line 410 .
- the liquid refrigerant moves to the second branch 450, but the third expansion valve 510 is opened and the fourth expansion valve 610 is closed so that the liquid refrigerant flows into the second branch 450. passes through the third expansion valve 510 and moves to the third refrigerant line 500.
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
Description
Claims (13)
- 냉매를 압축하여 순환시키는 압축기;압축된 냉매가 유입되어 분기되는 제1 분기부;상기 제1 분기부에서 분기되어 냉매가 이동하며, 응축기와 제1 팽창밸브가 배치되는 제1 냉매라인;상기 제1 분기부에서 분기되어 냉매가 이동하며, 실내기와 제2 팽창밸브가 배치되는 제2 냉매라인;상기 제1 냉매라인 또는 제2 냉매라인을 통과하는 냉매가 유입되는 기액분리기; 및상기 기액분리기를 통과한 냉매가 유입되는 제2 분기부;를 포함하며,상기 기액분리기는 액상의 냉매를 상기 제2 분기부로 이동시며, 기상의 냉매는 상기 압축기로 이동시키는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제1 항에 있어서,상기 제2 분기부에서 분기되어 냉매가 이동하며 제3 팽창밸브와 증발기가 배치되는 제3 냉매라인;상기 제2 분기부에서 분기되어 냉매가 이동하며, 제4 팽창밸브와 칠러가 배치되는 제4 냉매라인; 및상기 제3 냉매라인 또는 상기 제4 냉매라인의 냉매가 이동하는 냉매를 기액분리하여 상기 압축기로 기상의 냉매를 전달하는 어큐뮬레이터;를 더 포함하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,상기 압축기를 통과하는 냉매는 상기 제1 팽창밸브 또는 상기 제2 팽창밸브의 개폐를 통해 상기 제1 냉매라인 또는 상기 제2 냉매라인으로 이동하는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,상기 기액분리기에서 분리되어 상기 제2 분기부로 이동하는 액상의 냉매는 상기 제3 팽창밸브 또는 상기 제4 팽창밸브의 개폐를 통해 상기 제3 냉매라인 또는 상기 제4 냉매라인으로 이동하는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,상기 기액분리기에서 분리된 기상의 냉매가 압축기로 유입되는 제5 냉매라인에는 체크밸브가 배치되는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,상기 증발기와 상기 실내기는 공조케이스 내부에 배치되며,상기 공조케이스 내부에는 PTC 히터가 배치되는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,난방모드의 경우,상기 제1 팽창밸브는 패쇄되고, 상기 제2 팽창밸브가 개방되어 상기 압축기를 통과하는 냉매는 상기 제2 냉매라인을 따라 이동하여 상기 기액분리기로 유입되며,상기 기액분리기를 통과한 액상의 냉매는 상기 제3 팽창밸브가 개방되고 상기 제4 팽창밸브가 폐쇄되어, 상기 제3 냉매라인을 따라 냉매가 이동하는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,냉방모드의 경우,상기 제1 팽창밸브는 개방되고, 상기 제2 팽창밸브가 폐쇄방되어 상기 압축기를 통과하는 냉매는 상기 제1 냉매라인을 따라 이동하여 상기 기액분리기로 유입되며,상기 기액분리기를 통과한 액상의 냉매는 상기 제3 팽창밸브가 폐쇄되고 상기 제4 팽창밸브가 개방되어, 상기 제4 냉매라인을 따라 냉매가 이동하는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 제2 항에 있어서,상기 응축기는 공랭식 응축기 또는 수냉식 응축기가 사용되는 것을 특징으로 하는 냉난방 베이퍼 인젝션 시스템.
- 하나의 체크밸브 및 제1 내지 제4 팽창밸브가 배치되는 하우징;상기 하우징과 마주보도록 배치되는 기액분리기;제1 팽창밸브 및 제2 팽창밸브를 상기 기액분리기와 연결하는 제1 합류부;제3 팽창밸브 및 제4 팽창밸브를 상기 기액분리기와 연결하는 제2 분기부; 및상기 체크밸브와 상기 기액분리기를 연결하는 제5 냉매라인;를 포함하는 베이퍼 인젝션 모듈.
- 제10 항에 있어서,상기 제1 합류부를 통해 상기 기액분리기로 유입되는 냉매는 상기 기액분리기 내부에서 기상의 냉매와 액상의 냉매로 분리되며,분리된 상기 기상의 냉매는 상기 제5 냉매라인으로 이동하며,분리된 상기 액상의 냉매는 상기 제2 분기부로 이동하는 것을 특징으로 하는 베이퍼 인젝션 모듈.
- 제11 항에 있어서,난방모드의 경우,상기 제1 팽창밸브가 개방되고 상기 제2 팽창밸브가 폐쇄되어 상기 제1 팽창밸브를 통과한 냉매가 상기 제1 합류부를 통해 상기 기액분리기로 유입되며,상기 기액분리기에서 분리된 상기 기상의 냉매는 상기 제5 냉매라인으로 이동하고, 상기 액상의 냉매는 제2 분기부로 이동하되,상기 제3 팽창밸브는 폐쇄되고, 상기 제4 팽창밸브가 개방되어 상기 제2 분기부로 유입되는 상기 액상의 냉매는 제4 팽창밸브를 통과하는 것을 특징으로 하는 베이퍼 인젝션 모듈.
- 제11 항에 있어서,냉방모드의 경우,상기 제1 팽창밸브가 폐쇄되고 상기 제2 팽창밸브가 개방되어 상기 제2 팽창밸브를 통과한 냉매가 상기 제1 합류부를 통해 상기 기액분리기로 유입되며,상기 기액분리기에서 분리된 상기 기상의 냉매는 상기 제5 냉매라인으로 이동하고, 상기 액상의 냉매는 제2 분기부로 이동하되,상기 제3 팽창밸브는 개방되고, 상기 제4 팽창밸브가 폐쇄되어 상기 제2 분기부로 유입되는 상기 액상의 냉매는 제3 팽창밸브를 통과하는 것을 특징으로 하는 베이퍼 인젝션 모듈.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112022002073.3T DE112022002073T5 (de) | 2021-10-21 | 2022-10-13 | Dampfeinspritzsystem zum kühlen/heizen und darin verwendetes dampfeinspritzsystemmodul |
| US18/287,487 US20240208298A1 (en) | 2021-10-21 | 2022-10-13 | Cooling/heating vapor injection system and vapor injection system module used therein |
| CN202280051266.1A CN117677513A (zh) | 2021-10-21 | 2022-10-13 | 冷却/加热蒸汽喷射系统和其中使用的蒸汽喷射系统模块 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2021-0140901 | 2021-10-21 | ||
| KR1020210140901A KR102948149B1 (ko) | 2021-10-21 | 2021-10-21 | 냉난방 베이퍼 인젝션 시스템 및 이에 사용되는 베이퍼 인젝션 모듈 |
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| WO2023068645A1 true WO2023068645A1 (ko) | 2023-04-27 |
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| Country | Link |
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| US (1) | US20240208298A1 (ko) |
| KR (1) | KR102948149B1 (ko) |
| CN (1) | CN117677513A (ko) |
| DE (1) | DE112022002073T5 (ko) |
| WO (1) | WO2023068645A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20250153545A1 (en) * | 2022-05-20 | 2025-05-15 | Hanon Systems | Vapor injection module and vehicle heat management device including same |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US12460850B2 (en) * | 2023-05-05 | 2025-11-04 | GM Global Technology Operations LLC | Vapor injection refrigerant systems |
| KR20240173528A (ko) * | 2023-06-05 | 2024-12-12 | 현대자동차주식회사 | 차량용 히트펌프 시스템 |
| WO2024253352A1 (ko) * | 2023-06-08 | 2024-12-12 | 한온시스템 주식회사 | 차량용 열관리 시스템 |
| KR20250056492A (ko) * | 2023-10-19 | 2025-04-28 | 현대자동차주식회사 | 차량용 히트펌프 시스템 |
| FR3164948A1 (fr) * | 2024-07-24 | 2026-01-30 | DENSO Automotive Dtl. GmbH | Système de régulation thermique pour habitacle et batterie d’un véhicule électrique comprenant un circuit de pompe à chaleur à injection de gaz |
| FR3165307A1 (fr) * | 2024-08-01 | 2026-02-06 | Valeo Systemes Thermiques | Système de conditionnement thermique |
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2021
- 2021-10-21 KR KR1020210140901A patent/KR102948149B1/ko active Active
-
2022
- 2022-10-13 CN CN202280051266.1A patent/CN117677513A/zh active Pending
- 2022-10-13 US US18/287,487 patent/US20240208298A1/en active Pending
- 2022-10-13 WO PCT/KR2022/015451 patent/WO2023068645A1/ko not_active Ceased
- 2022-10-13 DE DE112022002073.3T patent/DE112022002073T5/de active Pending
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| CN107757298B (zh) * | 2017-11-01 | 2021-03-23 | 蔚来(安徽)控股有限公司 | 喷气增焓热泵空调系统和包括该热泵空调系统的电动车 |
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| Publication number | Publication date |
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| US20240208298A1 (en) | 2024-06-27 |
| KR20230056996A (ko) | 2023-04-28 |
| DE112022002073T5 (de) | 2024-01-25 |
| KR102948149B1 (ko) | 2026-04-06 |
| CN117677513A (zh) | 2024-03-08 |
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