WO2015111847A1 - 차량용 히트 펌프 시스템 - Google Patents
차량용 히트 펌프 시스템 Download PDFInfo
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- WO2015111847A1 WO2015111847A1 PCT/KR2014/012632 KR2014012632W WO2015111847A1 WO 2015111847 A1 WO2015111847 A1 WO 2015111847A1 KR 2014012632 W KR2014012632 W KR 2014012632W WO 2015111847 A1 WO2015111847 A1 WO 2015111847A1
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- Prior art keywords
- refrigerant
- heat exchanger
- circulation line
- cooling water
- refrigerant circulation
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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
- B60H1/00642—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
- B60H1/00921—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct
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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
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00335—Heat exchangers for air-conditioning devices of the gas-air type
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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
- B60H1/00321—Heat exchangers for air-conditioning devices
- B60H1/00342—Heat exchangers for air-conditioning devices of the liquid-liquid type
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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
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
- B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
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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
- B60H1/3205—Control means therefor
- B60H1/3211—Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
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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
- B60H1/3205—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 [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
- B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side
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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
- B60H1/323—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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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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
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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
- F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
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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
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0234—Header boxes; End plates having a second heat exchanger disposed there within, e.g. oil cooler
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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
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
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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
- B60H1/00642—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
- B60H2001/00928—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 comprising a secondary circuit
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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
- B60H1/00642—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
- B60H2001/00949—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 comprising additional heating/cooling sources, e.g. second evaporator
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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—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0403—Refrigeration circuit bypassing means for the condenser
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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—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
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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
- F25B2600/2507—Flow-diverting 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2519—On-off 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
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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
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
Definitions
- the present invention relates to a vehicle heat pump system, and more particularly, a refrigerant-cooling water heat exchanger for heat-exchanging a refrigerant circulating in a refrigerant circulation line and a cooling water circulating in a vehicle electrical appliance, and a refrigerant- upstream of an outdoor heat exchanger.
- a refrigerant circulation line for arranging a cooling water heat exchanger and a second refrigerant circulation line for arranging a refrigerant-cooling water heat exchanger downstream of the outdoor heat exchanger, in the air-conditioning mode, the refrigerant is connected to the refrigerant-cooling water heat exchanger and the outdoor heat exchanger.
- the present invention relates to a heat pump system for a vehicle in which heat is radiated to the coolant and the outside, and in the heat pump mode, the refrigerant is absorbed from the outside air and the coolant through the outdoor heat exchanger and the coolant-coolant heat exchanger.
- the vehicle air conditioner generally includes a cooling system for cooling the interior of a vehicle and a heating system for heating the interior of the vehicle.
- the cooling system is configured to cool the vehicle interior by exchanging air passing through the outside of the evaporator on the evaporator side of the refrigerant cycle with the refrigerant flowing inside the evaporator, thereby cooling the vehicle interior, and the heating system is configured at the heater core side of the cooling water cycle.
- the air passing through the outside of the heater core is exchanged with the coolant flowing through the inside of the heater core to be converted into warmth, and configured to heat the vehicle interior.
- a heat pump system capable of selectively performing cooling and heating by changing the flow direction of the refrigerant using one refrigerant cycle is applied, for example, two heat exchangers.
- an indoor heat exchanger installed in the air conditioning case to exchange heat with air blown into the vehicle interior, and an outdoor heat exchanger configured to exchange heat from the outside of the air conditioning case
- a direction switching valve capable of switching the flow direction of the refrigerant.
- the indoor heat exchanger acts as a cooling heat exchanger
- the indoor heat exchanger acts as a heating heat exchanger
- FIG. 1 Various types have been proposed as such a vehicle heat pump system, and a representative example thereof is illustrated in FIG. 1.
- the vehicle heat pump system shown in FIG. 1 includes a compressor 30 for compressing and discharging a refrigerant, an indoor heat exchanger 32 for dissipating the refrigerant discharged from the compressor 30, and a parallel structure.
- the first expansion valve 34 and the first bypass valve 36 for selectively passing the refrigerant passing through the heat exchanger 32, and the first expansion valve 34 or the first bypass valve 36
- the outdoor heat exchanger 48 for heat-exchanging the refrigerant having passed through the outside, the evaporator 60 for evaporating the refrigerant passed through the outdoor heat exchanger 48, and the refrigerant passing through the evaporator 60
- An accumulator (62) separating the refrigerant, a second expansion valve (56) for selectively expanding the refrigerant supplied to the evaporator (60), and the second expansion valve (56) are installed in parallel to the Line the outlet side of the outdoor heat exchanger 48 with the inlet side of the accumulator 62.
- the second comprises a bypass valve 58 which
- a chiller 50 is installed at the outlet side of the outdoor heat exchanger 48 to exchange heat between the refrigerant and the cooling water.
- reference numeral 10 denotes an air conditioning case in which the indoor heat exchanger 32 and the evaporator 60 are built
- reference numeral 12 denotes a temperature control door for adjusting a mixing amount of cold and warm air
- reference numeral 20 denotes an inlet of the air conditioning case.
- the first bypass valve 36 and the second expansion valve 56 are closed and the first expansion valve ( 34 and the second bypass valve 58 are opened.
- the temperature control door 12 operates as shown in FIG. Therefore, the refrigerant discharged from the compressor 30 is the indoor heat exchanger 32, the first expansion valve 34, the outdoor heat exchanger 48, the chiller 50, the second bypass valve 58, and the accumulator 62.
- the indoor heat exchanger 32 serves as a heater
- the outdoor heat exchanger 48 serves as an evaporator.
- the air conditioner mode (cooling mode)
- the first bypass valve 36 and the second expansion valve 56 are opened, and the first expansion valve 34 and the second bypass valve 58 are closed. do.
- the temperature control door 12 is to close the passage of the indoor heat exchanger (32). Therefore, the refrigerant discharged from the compressor 30 is the indoor heat exchanger 32, the first bypass valve 36, the outdoor heat exchanger 48, the chiller 50, the second expansion valve 56, the evaporator 60 ) And the accumulator 62 are sequentially returned to the compressor 30. That is, the evaporator 60 serves as an evaporator, and the indoor heat exchanger 32 closed by the temperature control door 12 serves as a heater as in the heat pump mode.
- the indoor heat exchanger 32 installed inside the air conditioning case 10 serves as a heater in the heat pump mode (heating mode) to perform heating
- the outdoor heat exchanger 48 is installed outside the air conditioning case 10, that is, the engine room front side of the vehicle, and serves as an evaporator that exchanges heat with outside air.
- the outdoor heat exchanger 48 when the temperature of the refrigerant flowing into the outdoor heat exchanger 48 is higher than the outside temperature, that is, when the outside air temperature is lower than the refrigerant temperature, the outdoor heat exchanger may not absorb heat from the outside air.
- the heat exchange efficiency of the outdoor heat exchanger 48 is reduced, such as the occurrence of the frost at the (48), thereby reducing the heating performance and efficiency of the heat pump system, it is impossible to operate the heat pump mode when the outside temperature is 0 degrees or less. There was a problem.
- the thickness or heat exchange effective area must be increased so that the performance can be improved only by increasing the size.
- An object of the present invention for solving the above problems is to provide a refrigerant-cooling water heat exchanger for heat exchange between the refrigerant circulating in the refrigerant circulation line and the cooling water circulating in the vehicle electrical equipment, and the refrigerant-cooling water heat exchanger upstream of the outdoor heat exchanger.
- a first refrigerant circulation line to be arranged and a second refrigerant circulation line for arranging a refrigerant-cooling water heat exchanger downstream of the outdoor heat exchanger, in the air conditioner mode
- the refrigerant passes through the refrigerant-cooling water heat exchanger and the outdoor heat exchanger. Since it is cooled by heat dissipation, the cooling performance is improved without increasing the size of the outdoor heat exchanger.
- the heat is absorbed from outside air and cooling water (electric waste heat) through the outdoor heat exchanger and the refrigerant-cooling water heat exchanger. It is possible to improve and recover the electric field waste heat through the refrigerant-cooling water heat exchanger, so 0 degrees or less, or has even groups to the outdoor heat generated by the implantation can be driven in the heat pump mode provides a vehicle heat pump system capable of further improving the heating performance and efficiency.
- the present invention provides a compressor installed on a refrigerant circulation line to compress and discharge refrigerant, and an indoor heat exchanger installed inside the air conditioning case to heat-exchange the air in the air conditioning case with the refrigerant discharged from the compressor.
- a heat exchanger installed inside the air conditioning case to exchange heat between the air in the air conditioning case and the refrigerant supplied to the compressor, and an outdoor heat exchanger installed outside the air conditioning case to heat exchange the refrigerant and the outside air circulating through the refrigerant circulation line.
- a first expansion means for expanding the refrigerant supplied to the evaporator in the air conditioner mode and a second expansion means for expanding the refrigerant supplied to the outdoor heat exchanger in the heat pump mode.
- a phosphorus is installed, and a refrigerant-cooling water heat exchanger for exchanging a refrigerant circulating through the refrigerant circulation line and a cooling water circulating through the cooling water circulation line is installed.
- the refrigerant circulating through the refrigerant circulation line is the refrigerant- It radiates heat to the coolant and the outside air through the coolant heat exchanger and the outdoor heat exchanger, and in the heat pump mode, the refrigerant circulating in the refrigerant circulation line absorbs heat from the outside air and the coolant through the outdoor heat exchanger and the coolant-coolant heat exchanger. do.
- a compressor installed on the refrigerant circulation line to compress and discharge the refrigerant
- an indoor heat exchanger installed inside the air conditioning case to exchange heat between the air in the air conditioning case and the refrigerant discharged from the compressor, and installed inside the air conditioning case.
- a cooling water circulation line for circulating the cooling water to the vehicle electrical equipment side to cool the vehicle electrical equipment is installed, and a refrigerant-cooling water heat exchanger for exchanging the refrigerant circulating the refrigerant circulation line and the cooling water circulating the cooling water circulation line is installed.
- the refrigerant circulation line is the seal in the air conditioner mode.
- a second refrigerant circulation line for disposing the refrigerant-cooling water heat exchanger downstream of the outdoor heat exchanger to heat the refrigerant with cooling water.
- the present invention provides a refrigerant-cooling water heat exchanger for exchanging a refrigerant circulating through a refrigerant circulation line and cooling water circulating in a vehicle electrical equipment, and a first refrigerant circulation line for installing a refrigerant-cooling water heat exchanger upstream of an outdoor heat exchanger, and an outdoor unit.
- a second refrigerant circulation line for arranging a refrigerant-cooling water heat exchanger downstream of the heat exchanger, in the air-conditioning mode, the refrigerant radiates heat to the coolant and the outdoor air through the refrigerant-cooling water heat exchanger and the outdoor heat exchanger, thereby cooling the outdoor heat exchanger.
- the cooling performance is improved without increasing the size, and in the heat pump mode, the refrigerant is absorbed from the outside air and the cooling water (electric waste heat) through the outdoor heat exchanger and the refrigerant-cooling water heat exchanger, thereby improving heating performance.
- the electric field waste heat is recovered through the coolant heat exchanger, so the outside air temperature is Even if different from that occurred may be possible to drive the heat pump mode to further improve the heating performance and efficiency.
- the refrigerant-cooled water heat exchanger with an air-cooled radiator for cooling the electronic parts, a separate heat exchanger such as a chiller for recovering electric field waste heat and a coolant line for connecting the chiller are not required.
- the mounting space can be reduced.
- the diameter of the pipe can be reduced, thereby reducing the amount of refrigerant filling. That is, conventionally, the downstream pipe of the outdoor heat exchanger, in which the liquid refrigerant flows in the air conditioner mode, is used for the use of the low-temperature, low-pressure gaseous refrigerant in the heat pump mode, thereby increasing the diameter of the pipe and increasing the amount of refrigerant filling. .
- the piping can be simplified by using the same refrigerant path for the dehumidification mode in the air conditioner mode and the heat pump mode.
- the coolant temperature (field waste heat) of the air-cooled radiator is heat-exchanged with the outside air through heat radiating fins and tubes of the air-cooled radiator to absorb heat from outside air.
- FIG. 1 is a block diagram showing a conventional vehicle heat pump system
- FIG. 2 is a block diagram showing an air conditioner mode in a vehicle heat pump system according to the present invention.
- FIG. 3 is a block diagram showing a heat pump mode in a vehicle heat pump system according to the present invention
- FIG. 4 is a block diagram showing a dehumidification mode during the operation of the heat pump mode in a vehicle heat pump system according to the present invention
- FIG. 5 is a block diagram showing a defrost mode of the heat pump mode operation in the vehicle heat pump system according to the present invention
- FIG. 6 is a block diagram showing a dehumidification mode during the defrost mode operation of the heat pump mode in a vehicle heat pump system according to the present invention
- FIG. 7 is a view showing a refrigerant-cooling water heat exchanger and an air-cooled radiator in a vehicle heat pump system according to the present invention
- FIG. 8 is a view showing another embodiment of a refrigerant-cooling water heat exchanger and an air-cooled radiator in a vehicle heat pump system according to the present invention
- FIG. 9 is a view showing a case in which the coolant flows in the opposite direction in the air-cooled radiator of FIG.
- the vehicle heat pump system according to the present invention, the compressor 100, the indoor heat exchanger 110, the second expansion means 120, the outdoor heat exchanger 130 and the refrigerant circulation line (R)
- the refrigerant-cooling water heat exchanger 180, the first expansion means 140, and the evaporator 160 are connected to each other, and are preferably applied to an electric vehicle or a hybrid vehicle.
- the evaporator 160 and the compressor 100 are configured to circulate, and in the heat pump mode, the refrigerant is in the compressor 100, the indoor heat exchanger 110, the first expansion means 140, and the outdoor heat exchanger 130. ),
- the refrigerant-cooling water heat exchanger 180, and the compressor 100 in the air conditioner mode, the refrigerant is the compressor 100, the indoor heat exchanger 110, the refrigerant-cooling water heat exchanger 180, the outdoor heat exchanger 130, the second expansion means 120 ).
- the refrigerant circulation line (R) is branched into two lines on the outlet side refrigerant circulation line (R) of the indoor heat exchanger (110),
- One line, the refrigerant discharged from the indoor heat exchanger 110 in the air conditioner mode, the refrigerant-cooled water heat exchanger 180, the outdoor heat exchanger 130, the second expansion means 120, the evaporator 160, the compressor ( It consists of a first refrigerant circulation line (R1) to circulate to 100),
- the other line the refrigerant discharged from the indoor heat exchanger 110 in the heat pump mode to the first expansion means 140, the outdoor heat exchanger 130, the refrigerant-cooling water heat exchanger 180, the compressor 100 It consists of a second refrigerant circulation line (R2) to circulate.
- R2 second refrigerant circulation line
- the first refrigerant circulation line R1 is configured to cool the refrigerant-coolant heat exchanger upstream of the outdoor heat exchanger 130 so as to cool the refrigerant with the coolant at the inlet side of the outdoor heat exchanger 130 in the air conditioner mode. Will be placed 180,
- the second refrigerant circulation line R2 is configured to heat the refrigerant-coolant heat exchanger downstream of the outdoor heat exchanger 130 to heat the refrigerant with the cooling water at the outlet side of the outdoor heat exchanger 130 in the heat pump mode. Place the device 180.
- the first refrigerant circulation line (R1) and the second refrigerant circulation line (R2) are branched from the outlet refrigerant circulation line (R) of the indoor heat exchanger (110), the refrigerant refrigerant circulation of the inlet side of the compressor (100). Joined again in line (R), it consists of a single line in the section between the outdoor heat exchanger 130 and the refrigerant-cooled water heat exchanger (180).
- the refrigerant circulation line (R) some sections are composed of a single line, some sections are configured to branch into two lines through the first and second refrigerant circulation line (R1) (R2).
- the refrigerant circulation line R the section from the inlet side of the compressor 100 to the outlet side of the indoor heat exchanger 110 is composed of a single line, the outlet side of the indoor heat exchanger 110 The section from to the inlet side of the compressor 100 is composed of two lines through the first and second refrigerant circulation lines (R1) (R2).
- the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180 in the first and second refrigerant circulation lines R1 and R2 are configured as a single line. That is, referring to FIG. 3, which is a heat pump mode, the refrigerant-cooling water heat exchanger 180 from the inlet side of the outdoor heat exchanger 130 in the first and second refrigerant circulation lines R1 and R2.
- the section up to the exit side of) is composed of a single line.
- a single line is started between the second expansion means 120 and the outdoor heat exchanger 130, and the refrigerant-cooling water heat exchanger 180 and the first directional valve to be described later.
- a single line ends between 190.
- the refrigerant flows along the first refrigerant circulation line R1
- the refrigerant flows first into the refrigerant-cooling water heat exchanger 180, and then flows into the outdoor heat exchanger 130, and heats.
- the refrigerant flows along the second refrigerant circulation line R2
- the refrigerant flows first into the outdoor heat exchanger 130 and then flows into the refrigerant-cooling water heat exchanger 180.
- the refrigerant flow in the single line section is reversed, thereby flowing the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger 130 installed in the single line section.
- the flow direction of the refrigerant is also reversed.
- a bypass line R3 is provided in parallel in the second refrigerant circulation line R2 so that the refrigerant circulating in the second refrigerant circulation line R2 bypasses the outdoor heat exchanger 130.
- the bypass line R3 is connected to a single line section of the first and second refrigerant circulation lines R1 and R2. Referring to FIG. 3, an inlet of the bypass line R3 is the outdoor heat exchanger. Is connected to the second refrigerant circulation line (R2) of the inlet side of the 130, that is, connected to the second refrigerant circulation line (R2) between the second expansion means 120 and the outdoor heat exchanger (130),
- the outlet of the bypass line (R3) is connected to the second refrigerant circulation line (R2) of the outlet side of the outdoor heat exchanger 130, that is, between the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger (180). Is connected to the second refrigerant circulation line (R2).
- first direction switching valve 190 is installed at the branch point of the first refrigerant circulation line (R1) and the second refrigerant circulation line (R2) in the refrigerant circulation line (R).
- the first directional valve 190 is a three-way valve, the refrigerant discharged from the indoor heat exchanger 110 according to the air conditioning mode or the heat pump mode, the first refrigerant circulation line (R1) or the second refrigerant circulation line R2 adjusts the flow direction of the refrigerant.
- the first diverter valve 190 flows the refrigerant discharged from the indoor heat exchanger 110 in the air conditioner mode to the first refrigerant circulation line R1, and in the heater pump mode, the indoor heat exchanger.
- the refrigerant discharged from 110 is caused to flow to the second refrigerant circulation line R2.
- a second direction switching valve 191 for controlling the flow direction of the refrigerant is installed at branch points of the second refrigerant circulation line R2 and the bypass line R3.
- the outdoor heat exchanger 130 when the outdoor heat exchanger 130 is implanted or when the outdoor temperature is 0 ° C. or less, the outdoor heat exchanger 130 does not smoothly absorb heat from the outside air.
- the refrigerant circulating in the second refrigerant circulation line R2 bypasses the outdoor heat exchanger 130.
- the outdoor temperature exchanger 130 bypassing the outdoor heat exchanger 130 is not necessarily 0 ° C, and the heat exchanger 130 only has good heat exchange efficiency between the outside air and the refrigerant flowing through the outdoor heat exchanger 130.
- the outdoor heat exchanger 130 can be bypassed to improve the heating performance and efficiency of the system.
- the implantation when an implantation occurs in the outdoor heat exchanger 130, if a refrigerant flows through the bypass line R3 to bypass the outdoor heat exchanger 130, the implantation may be delayed or the implantation may be eliminated.
- a first on-off valve 192 for turning on and off a refrigerant flow is installed in an outlet side first refrigerant circulation line R1 of the outdoor heat exchanger 130, and an outlet of the refrigerant-cooling water heat exchanger 180 is provided.
- a second on-off valve 193 for turning on / off a refrigerant flow is also provided in the second refrigerant circulation line R2.
- the first on-off valve 192 is installed between the outdoor heat exchanger 130 and the first expansion means 140 in the first refrigerant circulation line R1. In the mode, the first refrigerant circulation line R1 is opened, and in the heat pump mode, the first refrigerant circulation line R1 is closed.
- the first on-off valve 192 opens the first refrigerant circulation line R1 in the vehicle dehumidification mode in the heat pump mode, and second expansion means in the second refrigerant circulation line R2. Some of the refrigerant having passed through 120 are supplied to the first expansion means 140 and the evaporator 160 through the first refrigerant circulation line R1.
- the second on / off valve 193 is installed between the refrigerant-cooling water heat exchanger 180 and the compressor 100 in the second refrigerant circulation line R2 and is in an air conditioner mode.
- the second refrigerant circulation line R2 is closed at the time of opening, and the second refrigerant circulation line R2 is opened at the time of the heat pump mode.
- the refrigerant circulation line (R) is installed in the order of the compressor 100, the indoor heat exchanger 110 along the refrigerant flow direction, the refrigerant circulation line (R) of the outlet side of the indoor heat exchanger (110)
- the refrigerant circulation line (R1) branched from the) is installed in the refrigerant-cooling water heat exchanger 180, the outdoor heat exchanger 130, the first expansion means 140, the evaporator 160 in the refrigerant flow direction.
- the second refrigerant circulation line R2 branched from the outlet refrigerant circulation line R of the indoor heat exchanger 110, the second expansion means 120, the outdoor heat exchanger 130, and the refrigerant along the refrigerant flow direction. Cooling water heat exchanger 180 is installed in order.
- the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger installed in the single line section.
- the coolant flows in the air conditioner mode and the heat pump mode in the 130.
- the refrigerant discharged from the compressor 100 is transferred to the indoor heat exchanger 110, the refrigerant-cooled water heat exchanger 180, the outdoor heat exchanger 130, and the first expansion means 140. ), The evaporator 160 and the compressor 100 are sequentially circulated.
- both the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger 130 serve as a condenser.
- the high temperature refrigerant passing through the compressor 100 and the indoor heat exchanger 110 radiates heat to the cooling water while passing through the refrigerant-cooling water heat exchanger 180, and heats the outdoor heat exchanger 130.
- the heat dissipation to the outside air while talking it is cooled (condensed).
- the refrigerant discharged from the compressor 100 as shown in Figure 3 is the indoor heat exchanger 110, the second expansion means 120, the outdoor heat exchanger 130, the refrigerant-cooled water heat exchanger ( 180, the compressor 100 is sequentially cycled.
- the indoor heat exchanger 110 serves as a condenser
- the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180 serve as the evaporator 160.
- the low temperature refrigerant expanded by the second expansion means 120 after passing through the compressor 100 and the indoor heat exchanger 110 passes from the outside air while passing through the outdoor heat exchanger 130.
- Endothermic heat is heated (evaporate) in the process of endotherm from the cooling water while passing through the refrigerant-cooling water heat exchanger (180).
- the refrigerant passing through the second expansion means 120 flows not only to the second refrigerant circulation line R2 but also to the first refrigerant circulation line R1. Since it is supplied to the first expansion means 140 and the evaporator 160 to perform interior dehumidification.
- the heat pump system of the present invention cools the heat of the refrigerant through the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger 130 while the refrigerant flows along the first refrigerant circulation line R1 in the air conditioner mode. And heat radiating to the outside air and absorbing heat from the outside air and the cooling water through the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180 while the refrigerant flows along the second refrigerant circulation line R2 in the heat pump mode. .
- the compressor 100 receives and compresses a refrigerant while driving by receiving power from an engine (internal combustion engine) or a motor, and then discharges the gas in a high temperature and high pressure gas state.
- the compressor 100 sucks and compresses the refrigerant discharged from the evaporator 160 in the air conditioner mode and supplies the refrigerant to the indoor heat exchanger 110.
- the refrigerant-cooled water heat exchanger 180 is provided in the heat pump mode.
- the refrigerant discharged from the suction and compression is supplied to the indoor heat exchanger (110) side.
- the indoor heat exchanger (110) is installed inside the air conditioning case (150) and is connected to the refrigerant circulation line (R) at the outlet of the compressor (100), and the air flowing in the air conditioning case (150) and The refrigerant discharged from the compressor 100 is exchanged.
- the evaporator 160 is installed inside the air conditioning case 150 and is connected to the refrigerant circulation line R of the inlet side of the compressor 100, and the air flowing in the air conditioning case 150 and The refrigerant flowing to the compressor 100 is heat-exchanged.
- the indoor heat exchanger 110 serves as a condenser in both the air conditioning mode and the heat pump mode
- the evaporator 160 serves as the evaporator 160 in the air conditioner mode, stops operation because the refrigerant is not supplied in the heat pump mode, and the refrigerant is partially supplied in the dehumidification mode to serve as the evaporator 160. .
- the indoor heat exchanger 110 and the evaporator 160 is installed in the air conditioning case 150 spaced apart from each other by a predetermined interval, the evaporator 160 from the upstream side of the air flow direction in the air conditioning case 150. ) And the indoor heat exchanger 110 are sequentially installed.
- the low-temperature low-pressure refrigerant discharged from the first expansion means 140 is supplied to the evaporator 160, and at this time, through a blower (not shown). After the air flowing inside the air conditioning case 150 passes through the evaporator 160, the air is exchanged with the low temperature low pressure refrigerant inside the evaporator 160 to be converted into cold air, and then discharged into the vehicle interior to cool the interior of the vehicle. do.
- the high temperature and high pressure refrigerant discharged from the compressor 100 is supplied to the indoor heat exchanger 110 as shown in FIG. 3 in the heat pump mode, and at this time, a blower (not shown)
- a blower (not shown)
- the air flowing inside the air conditioning case 150 is exchanged with the refrigerant of high temperature and high pressure inside the indoor heat exchanger 110 to be converted into warm air, and then discharged into the vehicle interior.
- the interior of the car is heated.
- the size of the evaporator 160 preferably larger than the size of the indoor heat exchanger (110).
- Temperature control door 151 is installed.
- the temperature control door 151 adjusts the amount of air bypassing the indoor heat exchanger 110 and the amount of air passing through the indoor heat exchanger 110 to adjust the temperature of the air discharged from the air conditioning case 150. Can be adjusted accordingly.
- the air conditioner mode completely closes the front side passage of the indoor heat exchanger 110 through the temperature control door 151 as shown in FIG. 2, the cold air passing through the evaporator 160 is indoor heat exchanger 110. ) Is bypassed and supplied to the vehicle interior, so that the maximum cooling is performed.
- the passage bypassing the indoor heat exchanger 110 is completely closed through the temperature control door 151 as shown in FIG. 3.
- the air is changed to warm air, and since the warm air is supplied into the cabin, maximum heating is performed.
- the outdoor heat exchanger 130 is installed outside the air conditioning case 150 and is connected to the refrigerant circulation line R to exchange heat between the refrigerant circulating through the refrigerant circulation line R and the outside air. do.
- the outdoor heat exchanger 130 is installed in a section in which the first and second refrigerant circulation lines R1 and R2 are configured as a single line.
- the outdoor heat exchanger 130 serves as a heat dissipation function such as a condenser in the air conditioner mode, and at this time, the high temperature refrigerant flowing inside the outdoor heat exchanger 130 is heat-exchanged with the outside air to be cooled (condensed). In the heat pump mode, the endothermic role is the same as that of the evaporator 160. At this time, the low-temperature refrigerant flowing inside the outdoor heat exchanger 130 exchanges heat with the outside air, thereby absorbing heat from the outside air and heating (evaporation).
- the outdoor heat exchanger 130 is installed on the front side in the vehicle engine room, of course, the air-cooled radiator 210 described later is also installed on the front side in the engine room. At this time, the outdoor heat exchanger 130 and the air-cooled radiator 210 are disposed to overlap each other in the flow direction of the running wind.
- the cooling water circulation line (W) for circulating the cooling water to the vehicle electrical equipment 200 side to cool the vehicle electrical equipment 200 is installed.
- the vehicle electronics 200 typically includes a motor and an inverter.
- an air-cooled radiator 210 for cooling the cooling water circulating in the cooling water circulation line (W) and a water pump (P) for circulating the cooling water along the cooling water circulation line (W) are installed. do.
- cooling water circulates along the cooling water circulation line W, and in this process, the cooling water passing through the electrical equipment 200 is heated while cooling the electrical equipment 200, At this time, the heated cooling water is cooled by heat exchange with outside air while passing through the air-cooled radiator 210.
- the air-cooled radiator 210 is composed of two embodiments, as shown in Figs.
- the air-cooled radiator 210 of FIG. 7 includes a pair of header tanks 211 and 212 provided with inlet and outlet pipes 213 and 214 so as to be connected to the cooling water circulation line W. And a plurality of tubes 216 connected at both ends to the pair of header tanks 211 and 212 to communicate the pair of header tanks 211 and 212, and interposed between the plurality of tubes 216. It is composed of a heat radiation fin 217.
- the inlet and outlet pipes 213 and 214 are spaced apart from each other on the side of the header tank 212 opposite to the header tank 211 on which the refrigerant-cooling water heat exchanger 180 is installed.
- a partition wall 215 partitioning the inside of the header tank 212 is provided inside the header tank 212 between the inlet and outlet pipes 213 and 214.
- the coolant flowing into the inlet pipe 213 flows along one side tube 216 partitioned by the partition wall 215 and then the header tank 211 provided with the refrigerant-cooling water heat exchanger 180.
- the cooling water supplied to the header tank 211 is heat-exchanged with the refrigerant in the refrigerant-cooling water heat exchanger 180 during the 'U' turn process.
- the liquid flows through the other tubes 216 partitioned by the partition wall 215 and then is discharged through the outlet pipe 214.
- the refrigerant-cooling water heat exchanger 180 is installed inside the air-cooled radiator 210, that is, is inserted into one header tank 211 of the pair of header tanks 211 and 212. . As a result, the refrigerant flowing through the refrigerant-cooling water heat exchanger 180 and the cooling water flowing through the air-cooled radiator 210 are exchanged.
- the refrigerant-cooling water heat exchanger 180 is inserted into and installed inside the header tank 211 opposite to the header tank 212 provided with the inlet and outlet pipes 213 and 214.
- the refrigerant-cooling water heat exchanger 180 is provided with inlet and outlet pipes 181 and 182 to be connected to the first and second refrigerant circulation lines R1 and R2.
- inlet and outlet pipes 181 and 182 of the refrigerant-cooling water heat exchanger 180 are connected to a single line section of the first and second refrigerant circulation lines R1 and R2.
- the high temperature refrigerant flowing through the refrigerant-cooling water heat exchanger 180 is cooled by heat exchange with the cooling water in the air-cooled radiator 210, and in the heat pump mode, the refrigerant-cooling water heat exchanger 180 The low temperature refrigerant flowing through)) is heated by heat exchange with the cooling water in the air-cooled radiator 210.
- the refrigerant-cooling water heat exchanger 180 is located between the outdoor heat exchanger 130 and the air-cooled radiator 210 can maintain a constant heat source of the cooling water in the heat pump mode.
- the air-cooled radiator 210 of FIGS. 8 and 9 has different positions of the air-cooled radiator 210 and the inlet and outlet pipes 213 and 214 of FIG. 7.
- the inlet pipe 213 of the air-cooled radiator 210 of FIGS. 8 and 9 is provided in one header tank 212 of the pair of header tanks 211, 212, and the outlet pipe 214. Is provided in the other header tank 211.
- cooling water circulation line W is provided with a four-way valve 218 that reverses the circulation direction of the cooling water circulating in the cooling water circulation line W.
- the water pump (P), electrical equipment 200, four-way valve 218, air-cooled radiator 210, four-way valve 218, the water pump (P) is sequentially connected to the cooling water circulation line (W). .
- the coolant flowing into the inlet pipe 213 of the air-cooled radiator 210 flows to the other header tank 211 after passing through all the tubes 216 at the same time, and then in the other header tank 211. After heat exchange with the refrigerant in the refrigerant-cooling water heat exchanger 180, it is discharged to the outlet pipe 214.
- the cooling water circulation direction as shown in FIG. 8 is configured to exchange heat with the outside air while flowing the air-cooled radiator 210 so that the cooled cooling water exchanges heat with the refrigerant of the refrigerant-cooling water heat exchanger 180.
- the cooling performance of the refrigerant flowing through the refrigerant-cooling water heat exchanger 180 may be improved to improve cooling performance.
- the cooling water circulation direction as shown in FIG. 9 is configured to allow the coolant introduced into the air-cooled radiator 210 to exchange heat with the refrigerant of the refrigerant-cooling water heat exchanger 180 before heat-exchanging with the outside air.
- the heating performance of the refrigerant flowing through the cooling water heat exchanger 180 may be improved.
- the first expansion means 140 is formed by installing an orifice in the first refrigerant circulation line R1 between the outdoor heat exchanger 130 and the evaporator 160 as shown in FIG. 2.
- the high temperature refrigerant passing through the outdoor heat exchanger 130 expands while passing through the orifice, which is the first expansion means 140, is converted into a low temperature low pressure refrigerant, and then supplied to the evaporator 160. do.
- the second expansion means 120 is provided by installing an orifice in a second refrigerant circulation line R2 between the indoor heat exchanger 110 and the outdoor heat exchanger 130.
- the high temperature refrigerant passing through the indoor heat exchanger 110 expands while passing through the orifice which is the second expansion means 120 to change into a low temperature low pressure refrigerant, and then the outdoor heat exchanger 130. To be supplied.
- the accumulator 170 is installed on the inlet refrigerant circulation line R of the compressor 100.
- the accumulator 170 separates the liquid refrigerant and the gaseous refrigerant from the refrigerant supplied to the compressor 100 so that only the gaseous refrigerant may be supplied to the compressor 100.
- an electric heating heater 115 is further installed at the downstream side of the indoor heat exchanger 110 inside the air conditioning case 150 to improve heating performance.
- the electrically heated heater 115 is connected to the battery 116 of the vehicle.
- the heating performance can be improved by operating the electric heating heater 115 as an auxiliary heat source at the start of the vehicle, and the electric heating heater 115 can be operated even when the heating heat source is insufficient.
- the electric heating heater 115 it is preferable to use a PTC heater.
- the refrigerant In the air conditioner mode, the refrigerant is cooled by radiating heat to the coolant and the outside through the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger 130, thereby improving cooling performance without increasing the size of the outdoor heat exchanger 130, and heat pump.
- the refrigerant absorbs heat from outside air and cooling water (electric waste heat) through the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180, thereby improving heating performance as well as the refrigerant-cooling water heat exchanger 180. Since the electric field waste heat is recovered through the heat treatment, the heat pump mode can be driven even when the outside air temperature is 0 degrees or below, or when the outdoor heat exchanger 130 is implanted, thereby further improving heating performance and efficiency.
- a separate heat exchanger such as a chiller for recovering electric waste heat is connected to the chiller. No coolant line is required for the system, which reduces component count and mounting space.
- the diameter of the pipe can be reduced, thereby reducing the amount of refrigerant filling. That is, conventionally, the downstream pipe of the outdoor heat exchanger 130 in which the liquid refrigerant flows in the air conditioner mode is used for the use of the low-temperature, low-pressure gaseous refrigerant in the heat pump mode, so that the diameter of the pipe increases and the amount of refrigerant filling increases. There was a problem.
- the piping can be simplified by using the same refrigerant path for the dehumidification mode in the air conditioner mode and the heat pump mode.
- the refrigerant-cooled water heat exchanger 180 is integrated with the air-cooled radiator 210, the heat radiation fins of the air-cooled radiator 210 are lowered in the condition that the coolant temperature (field waste heat) of the air-cooled radiator 210 is lower than the ambient temperature. 217 and the tube 216 may exchange heat with the outside air to absorb heat from the outside air.
- Air conditioner mode (cooling mode) (FIG. 2)
- the refrigerant flows from the indoor heat exchanger 110 through the first directional valve 190 to flow to the first refrigerant circulation line R1.
- the direction is switched, the first on-off valve 192 is opened, the second on-off valve 193 is closed, and the bypass line R3 is closed through the second directional valve 191. do.
- the water pump (P) is operated to circulate the cooling water to the electrical equipment 200 and the air-cooled radiator 210 of the cooling water circulation line (W).
- the temperature control door 151 in the air conditioning case 150 operates to close the passage through the indoor heat exchanger 110, so that the air blown into the air conditioning case 150 by the blower is After cooling while passing through the evaporator 160, the indoor heat exchanger 110 is bypassed and supplied to the interior of the vehicle, thereby cooling the interior of the vehicle.
- the high temperature and high pressure gaseous refrigerant discharged after being compressed by the compressor 100 is supplied to the indoor heat exchanger 110 installed in the air conditioning case 150.
- the temperature control door 151 closes the passage of the indoor heat exchanger 110 side as shown in FIG. 2, so that the first refrigerant circulation line R1 does not exchange heat with air. To flow.
- the refrigerant flowing into the first refrigerant circulation line R1 is condensed (cooled) by exchanging heat with the cooling water circulating through the air-cooled radiator 210 in the course of passing through the refrigerant-cooling water heat exchanger 180.
- the refrigerant condensed while passing through the refrigerant-cooling water heat exchanger 180 is condensed (cooled) again while flowing to the outdoor heat exchanger 130 to exchange heat with the outside air.
- the refrigerant passing through the refrigerant-cooling water heat exchanger 180 and the outdoor heat exchanger 130 sequentially cools while sequentially exchanging heat with the cooling water (field waste heat) and the outside air, thereby changing the gaseous refrigerant into a liquid refrigerant.
- the refrigerant passing through the outdoor heat exchanger 130 is expanded under reduced pressure in the course of passing through the first expansion means 140 to become a liquid refrigerant having a low temperature and low pressure, and then flows into the evaporator 160.
- the refrigerant introduced into the evaporator 160 exchanges heat with the air blown into the air conditioning case 150 through a blower to evaporate and simultaneously cools the air by the endothermic action of the evaporative latent heat of the refrigerant. It is supplied to the vehicle interior and cooled.
- the refrigerant discharged from the evaporator 160 is recycled to the cycle as described above while flowing into the compressor 100.
- the refrigerant flow direction is switched such that the refrigerant discharged from the indoor heat exchanger 110 flows to the second refrigerant circulation line R2 through the first direction switching valve 190.
- the first on / off valve 192 is closed, the second on / off valve 193 is opened, and the bypass line R3 is closed through the second direction switching valve 191.
- the water pump (P) is operated to circulate the cooling water to the electrical equipment 200 and the air-cooled radiator 210 of the cooling water circulation line (W).
- the temperature control door 151 in the air conditioning case 150 operates to close the passage that bypasses the indoor heat exchanger 110, and the air blown into the air conditioning case 150 by the blower. After passing through the evaporator 160 (operation stop) is passed through the indoor heat exchanger 110 is switched to the warm air is supplied to the interior, thereby heating the interior of the vehicle interior.
- the high temperature and high pressure gaseous refrigerant discharged after being compressed by the compressor 100 flows into the indoor heat exchanger 110 installed in the air conditioning case 150.
- the high temperature and high pressure gaseous refrigerant introduced into the indoor heat exchanger 110 is condensed while exchanging heat with air blown into the air conditioning case 150 through a blower, and the air passing through the indoor heat exchanger 110 is After the warm air, it is supplied to the interior of the car to heat the cabin.
- the refrigerant discharged from the indoor heat exchanger (110) is expanded under reduced pressure in the process of flowing through the second refrigerant circulation line (R2) and passing through the second expansion means (120) to obtain a low-temperature low-pressure liquid refrigerant. After that, it is supplied to the outdoor heat exchanger (130).
- the refrigerant supplied to the outdoor heat exchanger 130 is evaporated while exchanging heat with the outside air and then supplied to the refrigerant-cooling water heat exchanger 180.
- the refrigerant supplied to the refrigerant-cooling water heat exchanger 180 is evaporated again by exchanging heat with the cooling water circulating in the air-cooled radiator 210.
- the refrigerant passing through the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180 sequentially evaporates (heats) while sequentially exchanging heat with external air and cooling water (field waste heat), thereby changing the liquid refrigerant into gaseous refrigerant. .
- the refrigerant passing through the refrigerant-cooling water heat exchanger 180 is introduced into the compressor 100 to recycle the cycle as described above.
- the dehumidification mode during the heat pump mode operation is operated when an in-vehicle dehumidification is required during the operation in the heater pump mode of FIG. 3.
- the first on / off valve 192 is further opened in the heat pump mode to allow the refrigerant to flow into the first refrigerant circulation line R1.
- the temperature control door 151 in the air conditioning case 150 operates to close the passage that bypasses the indoor heat exchanger 110, so that the air blown into the air conditioning case 150 by the blower After being cooled in the process of passing through the evaporator 160, while being passed through the indoor heat exchanger 110 is converted into a warm air is supplied into the vehicle interior, the interior of the vehicle interior is heated.
- the refrigerant passing through the outdoor heat exchanger 130 and the refrigerant-cooling water heat exchanger 180 is evaporated while exchanging heat with external air and cooling water (electric waste heat).
- the refrigerant flowing into the first refrigerant circulation line R1 passes through the first expansion means 140 and then is supplied to the evaporator 160 to exchange heat with air flowing in the air conditioning case 150. Will evaporate.
- dehumidification of air passing through the evaporator 160 is made, and the dehumidified air passing through the evaporator 160 is changed into warm air while passing through the indoor heat exchanger 110 and then supplied to the vehicle interior. Dehumidification heating.
- the defrost mode during the heat pump mode operation is activated when an frost occurs in the outdoor heat exchanger 130.
- bypass line R3 is opened through the second direction switching valve 191 in the heat pump mode.
- the indoor heat exchanger 110, and the second expansion means 120 bypasses the outdoor heat exchanger 130 while flowing along the bypass line R3, The refrigerant-cooled water heat exchanger 180 is supplied.
- the refrigerant supplied to the refrigerant-cooling water heat exchanger 180 evaporates while exchanging heat with cooling water (electric waste heat), and then flows into the compressor 100 to recycle the cycle as described above.
- the dehumidification mode during the defrost mode operation of the heat pump mode is operated when an in-vehicle dehumidification is required during the defrost mode of FIG.
- the first on / off valve 192 is further opened in the defrost mode to allow the refrigerant to flow in the first refrigerant circulation line R1.
- the temperature control door 151 in the air conditioning case 150 operates to close the passage that bypasses the indoor heat exchanger 110, and into the air conditioning case 150 by the blower. After the blown air is cooled in the course of passing through the evaporator 160, the air is converted into warm air while being passed through the indoor heat exchanger 110 and supplied to the interior of the vehicle, thereby heating the interior of the vehicle interior.
- the refrigerant supplied to the refrigerant-cooling water heat exchanger 180 is evaporated while exchanging heat with cooling water (field waste heat),
- the refrigerant flowing into the first refrigerant circulation line R1 passes through the first expansion means 140 and then is supplied to the evaporator 160 to exchange heat with air flowing in the air conditioning case 150. Will evaporate.
- dehumidification of air passing through the evaporator 160 is made, and the dehumidified air passing through the evaporator 160 is changed into warm air while passing through the indoor heat exchanger 110 and then supplied to the vehicle interior. Dehumidification heating.
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Abstract
Description
Claims (19)
- 냉매순환라인(R)상에 설치되어 냉매를 압축하여 배출하는 압축기(100)와,공조케이스(150)의 내부에 설치되어 공조케이스(150)내 공기와 상기 압축기(100)에서 배출된 냉매를 열교환시키는 실내열교환기(110)와,상기 공조케이스(150)의 내부에 설치되어 공조케이스(150)내 공기와 상기 압축기(100)로 공급되는 냉매를 열교환시키는 증발기(160)와,상기 공조케이스(150)의 외부에 설치되어 상기 냉매순환라인(R)을 순환하는 냉매와 외기를 열교환시키는 실외열교환기(130)와,상기 실내열교환기의 출구측 냉매순환라인에 설치되어 실내열교환기에서 배출된 냉매를 선택적으로 팽창시키는 제1팽창수단(120)과,상기 증발기의 입구측 냉매순환라인에 설치되어 증발기로 공급되는 냉매를 팽창시키는 제2팽창수단(140)을 포함하여 이루어진 차량용 히트 펌프 시스템에 있어서,차량 전장품(200)을 냉각하도록 차량 전장품(200)측으로 냉각수를 순환시키는 냉각수순환라인(W)이 설치되고,상기 냉매순환라인(R)을 순환하는 냉매와 상기 냉각수순환라인(W)을 순환하는 냉각수를 열교환시키는 냉매-냉각수 열교환기(180)가 설치되며,에어컨 모드시에는, 상기 냉매순환라인(R)을 순환하는 냉매가 상기 냉매-냉각수 열교환기(180)와 실외열환기를 통해 냉각수 및 외기에 방열하고,히트펌프 모드시에는, 상기 냉매순환라인(R)을 순환하는 냉매가 상기 실외열교환기(130)와 냉매-냉각수 열교환기(180)를 통해 외기 및 냉각수로부터 흡열하도록 한 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 1 항에 있어서,상기 냉매순환라인(R)은,에어컨 모드시, 냉매가 상기 압축기(100), 실내열교환기(110), 냉매-냉각수 열교환기(180), 실외열교환기(130), 제1팽창수단(140), 증발기(160), 압축기(100)로 순환하도록 구성되고,히트펌프 모드시, 냉매가 상기 압축기(100), 실내열교환기(110), 제2팽창수단(120), 실외열교환기(130), 냉매-냉각수 열교환기(180), 압축기(100)로 순환하도록 구성된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 2 항에 있어서,상기 냉매순환라인(R)은, 상기 실내열교환기(110)의 출구측 냉매순환라인(R)상에서 두 개의 라인으로 분기되어,하나의 라인은, 에어컨 모드시 실내열교환기(110)에서 배출된 냉매가 냉매-냉각수 열교환기(180), 실외열교환기(130), 제1팽창수단(140), 증발기(160), 압축기(100)로 순환하도록 하는 제1냉매순환라인(R1)으로 구성되고,다른 하나의 라인은, 히트펌프 모드시 실내열교환기(110)에서 배출된 냉매가 제2팽창수단(120), 실외열교환기(130), 냉매-냉각수 열교환기(180), 압축기(100)로 순환하도록 하는 제2냉매순환라인(R2)으로 구성되는 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 1 항에 있어서,상기 냉각수순환라인(W)에는, 상기 냉각수순환라인(W)을 순환하는 냉각수를 냉각시키도록 공냉식 라디에이터(210)가 설치되며,상기 냉매-냉각수 열교환기(180)는, 상기 공냉식 라디에이터(210)의 내부에 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 4 항에 있어서,상기 공냉식 라디에이터(210)는, 상기 냉각수순환라인(W)과 연결되도록 입,출구파이프(213)(214)가 구비되며 서로 일정간격 이격된 한 쌍의 헤더탱크(211)(212)와, 상기 한 쌍의 헤더탱크(211)(212)에 양단부가 연결되어 한 쌍의 헤더탱크(211)(212)를 연통시키는 복수개의 튜브(216)와, 상기 복수개의 튜브(216) 사이에 개재되는 방열핀(217)으로 이루어지고,상기 냉매-냉각수 열교환기(180)는, 상기 한 쌍의 헤더탱크(211)(212) 중 일측 헤더탱크(211)의 내부에 삽입되어 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 5 항에 있어서,상기 입,출구파이프(213)(214)는, 상기 냉매-냉각수 열교환기(180)가 설치된 일측 헤더탱크(211)의 반대편 헤더탱크(212)측에 서로 이격되어 구비되고,상기 입,출구파이프(213)(214) 사이의 헤더탱크(212)의 내부에는, 상기 헤더탱크(212)의 내부를 구획하는 구획벽(215)이 설치되어,상기 입구파이프(213)로 유입된 냉각수가 상기 냉매-냉각수 열교환기(180)가 설치된 헤더탱크(211)에서 'U'턴하여 상기 출구파이프(214)로 배출되도록 한 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 5 항에 있어서,상기 입구파이프(213)는 상기 한 쌍의 헤더탱크(211)(212) 중 일측 헤더탱크(212)에 구비되고, 상기 출구파이프(214)는 타측 헤더탱크(211)에 구비되며,상기 냉각수순환라인(W)에는, 상기 냉각수순환라인(W)을 순환하는 냉각수의 순환방향을 반대로 전환하는 사방밸브(218)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 3 항에 있어서,상기 제1냉매순환라인(R1)과 제2냉매순환라인(R2)의 분기지점에는 에어컨 모드 또는 히트펌프 모드에 따라 상기 실내열교환기(110)에서 배출된 냉매를 상기 제1냉매순환라인(R1) 또는 제2냉매순환라인(R2)으로 냉매의 유동방향을 조절하는 제1방향전환밸브(190)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 3 항에 있어서,상기 제2냉매순환라인(R2)에는, 상기 제2냉매순환라인(R2)을 순환하는 냉매가 상기 실외열교환기(130)를 바이패스하도록 바이패스라인(R3)이 병렬로 설치되고,상기 제2냉매순환라인(R2)과 상기 바이패스라인(R3)의 분기지점에는 냉매의 유동방향을 조절하는 제2방향전환밸브(191)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 9 항에 있어서,상기 바이패스라인(R3)의 입구는, 상기 실외열교환기(130)의 입구측 제2냉매순환라인(R2)과 연결되고,상기 바이패스라인(R3)의 출구는, 상기 실외열교환기(130)의 출구측 제2냉매순환라인(R2)과 연결된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 3 항에 있어서,상기 실외열교환기(130)의 출구측 제1냉매순환라인(R1)에는 냉매 유동을 온오프하는 제1온오프밸브(192)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 3 항에 있어서,상기 냉매-냉각수 열교환기(180)의 출구측 제2냉매순환라인(R2)에는 냉매 유동을 온오프하는 제2온오프밸브(193)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 11 항에 있어서,히트펌프 모드 상태에서 차실내 제습모드시, 상기 제1온오프밸브(192)를 개방하여, 상기 제2냉매순환라인(R2)에서 제2팽창수단(120)을 통과한 냉매 중 일부 냉매를 상기 제1냉매순환라인(R1)을 통해 상기 제1팽창수단(140) 및 증발기(160)측으로도 공급하는 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 3 항에 있어서,상기 실내열교환기(110)의 출구측 냉매순환라인(R)에서 분기된 제1냉매순환라인(R1)과 제2냉매순환라인(R2)은, 상기 실외열교환기(130)와 냉매-냉각수 열교환기(180) 구간에서 단일 라인으로 구성되어,에어컨 모드와 히트펌프 모드시, 상기 단일 라인 구간에서의 냉매흐름이 반대가 되도록 한 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 4 항에 있어서,상기 실외열교환기(130)와 상기 공냉식 라디에이터(210)는 차량 엔진룸내의 전방측에 설치되되, 주행풍의 유동방향으로 서로 중첩되게 배치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 냉매순환라인(R)상에 설치되어 냉매를 압축하여 배출하는 압축기(100)와,공조케이스(150)의 내부에 설치되어 공조케이스(150)내 공기와 상기 압축기(100)에서 배출된 냉매를 열교환시키는 실내열교환기(110)와,상기 공조케이스(150)의 내부에 설치되어 공조케이스(150)내 공기와 상기 압축기(100)로 공급되는 냉매를 열교환시키는 증발기(160)와,상기 공조케이스(150)의 외부에 설치되어 상기 냉매순환라인(R)을 순환하는 냉매와 외기를 열교환시키는 실외열교환기(130)를 포함하여 이루어진 차량용 히트 펌프 시스템에 있어서,차량 전장품(200)을 냉각하도록 차량 전장품(200)측으로 냉각수를 순환시키는 냉각수순환라인(W)이 설치되고,상기 냉매순환라인(R)을 순환하는 냉매와 상기 냉각수순환라인(W)을 순환하는 냉각수를 열교환시키는 냉매-냉각수 열교환기(180)가 설치되며,상기 냉매순환라인(R)은, 에어컨 모드시 상기 실외열교환기(130)의 입구측에서 상기 냉각수로 냉매를 냉각시키도록 상기 실외열교환기(130)의 상류측에 상기 냉매-냉각수 열교환기(180)를 배치시키는 제1냉매순환라인(R1)과, 히트펌프 모드시 상기 실외열교환기(130)의 출구측에서 상기 냉각수로 냉매를 가열시키도록 상기 실외열교환기(130)의 하류측에 상기 냉매-냉각수 열교환기(180)를 배치시키는 제2냉매순환라인(R2)을 구비한 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 16 항에 있어서,상기 제1냉매순환라인(R1)과 제2냉매순환라인(R2)은, 상기 실내열교환기(110)의 출구측 냉매순환라인(R)에서 분기되고, 상기 압축기(100)의 입구측 냉매순환라인(R)에서 다시 합류되며, 상기 실외열교환기(130)와 냉매-냉각수 열교환기(180) 구간에서 단일 라인으로 구성된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 17 항에 있어서,상기 제1냉매순환라인(R1)과 제2냉매순환라인(R2)의 분기지점에는, 에어컨 모드 또는 히트펌프 모드에 따라 상기 실내열교환기(110)에서 배출된 냉매를 상기 제1냉매순환라인(R1) 또는 제2냉매순환라인(R2)으로 냉매의 유동방향을 조절하는 제1방향전환밸브(190)가 설치되고,상기 제1냉매순환라인(R1)에는 냉매 유동을 온오프하는 제1온오프밸브(192)가 설치되며, 상기 제2냉매순환라인(R2)에는 냉매 유동을 온오프하는 제2온오프밸브(193)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
- 제 17 항에 있어서,상기 제2냉매순환라인(R2)에는, 상기 제2냉매순환라인(R2)을 순환하는 냉매가 상기 실외열교환기(130)를 바이패스하도록 바이패스라인(R3)이 병렬로 설치되고,상기 제2냉매순환라인(R2)과 상기 바이패스라인(R3)의 분기지점에는 냉매의 유동방향을 조절하는 제2방향전환밸브(191)가 설치된 것을 특징으로 하는 차량용 히트 펌프 시스템.
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CN201480057188.1A CN105682955B (zh) | 2014-01-21 | 2014-12-22 | 用于车辆的热泵*** |
DE112014003781.8T DE112014003781B4 (de) | 2014-01-21 | 2014-12-22 | Wärmepumpensystem für ein Fahrzeug |
US14/916,107 US10293659B2 (en) | 2014-01-21 | 2014-12-22 | Heat pump system for vehicle |
US16/372,490 US10744850B2 (en) | 2014-01-21 | 2019-04-02 | Heat pump system for vehicle |
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KR10-2014-0007013 | 2014-01-21 | ||
KR1020140007013A KR101859512B1 (ko) | 2014-01-21 | 2014-01-21 | 차량용 히트 펌프 시스템 |
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US14/916,107 A-371-Of-International US10293659B2 (en) | 2014-01-21 | 2014-12-22 | Heat pump system for vehicle |
US16/372,490 Continuation US10744850B2 (en) | 2014-01-21 | 2019-04-02 | Heat pump system for vehicle |
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KR (1) | KR101859512B1 (ko) |
CN (1) | CN105682955B (ko) |
DE (1) | DE112014003781B4 (ko) |
WO (1) | WO2015111847A1 (ko) |
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Also Published As
Publication number | Publication date |
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US20190225050A1 (en) | 2019-07-25 |
KR20150087463A (ko) | 2015-07-30 |
CN105682955B (zh) | 2017-09-29 |
DE112014003781B4 (de) | 2019-05-29 |
US10744850B2 (en) | 2020-08-18 |
US20160318373A1 (en) | 2016-11-03 |
CN105682955A (zh) | 2016-06-15 |
US10293659B2 (en) | 2019-05-21 |
DE112014003781T5 (de) | 2016-04-28 |
KR101859512B1 (ko) | 2018-06-29 |
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