WO2017006775A1 - 冷凍システム、および車載冷凍システム - Google Patents
冷凍システム、および車載冷凍システム Download PDFInfo
- Publication number
- WO2017006775A1 WO2017006775A1 PCT/JP2016/068711 JP2016068711W WO2017006775A1 WO 2017006775 A1 WO2017006775 A1 WO 2017006775A1 JP 2016068711 W JP2016068711 W JP 2016068711W WO 2017006775 A1 WO2017006775 A1 WO 2017006775A1
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- WIPO (PCT)
- Prior art keywords
- refrigerant
- tank
- tubes
- evaporator
- refrigeration system
- Prior art date
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- Ceased
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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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
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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
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
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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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3227—Cooling devices using compression characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary 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
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
- F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling 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
- 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
- F25B39/00—Evaporators; Condensers
- F25B39/04—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
- 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
- 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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- 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
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0426—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
- F28D1/0435—Combination of units extending one behind the other
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
- F28D1/0461—Combination of different types of heat exchanger, e.g. radiator combined with tube-and-shell heat exchanger; Arrangement of conduits for heat exchange between at least two media and for heat exchange between at least one medium and the large body of fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0266—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/06—Control arrangements therefor
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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
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00207—Combined heating, ventilating, or cooling devices characterised by the position of the HVAC devices with respect to the passenger compartment
- B60H2001/00242—Devices in the rear area of the passenger compartment
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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
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2259—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant output of a control signal
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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
- B60H2001/3286—Constructional features
- B60H2001/3289—Additional cooling source
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
- F25B39/028—Evaporators having distributing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0084—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0085—Evaporators
Definitions
- the present disclosure is intended to be a refrigeration system and an in-vehicle refrigeration system.
- Patent Document 1 discloses a technique in which first and second evaporators are connected in parallel between a refrigerant inlet of a compressor and a refrigerant outlet of a condenser.
- first and second solenoid valves are provided to close the refrigerant inlet sides of the first and second evaporators. Therefore, by closing the inlet side of one of the first and second evaporators with one of the first and second solenoid valves, the lubricating oil is prevented from flowing into one of the evaporators. be able to. For this reason, when the blower on the one evaporator side of the first and second blowers is stopped, the lubricating oil is supplied to the one evaporator side by closing the solenoid valve on the one evaporator side. Accumulation can be prevented in advance.
- first and second expansion valves are provided on the refrigerant inlet sides of the first and second evaporators, respectively.
- the oil return control uses a phenomenon that the expansion valve on the stop evaporator side of the first and second expansion valves is temporarily opened with the ON / OFF operation of the compressor, and when the expansion valve is opened. A refrigerant flow that flows from the refrigerant outlet of the compressor to the stop evaporator side through the expansion valve is generated. Thereby, the lubricating oil collected on the stop evaporator side can be returned to the inlet side of the compressor.
- the present inventor has examined a refrigeration system that prevents the lubricating oil from the compressor side from flowing to the second evaporator of the first and second evaporators without using a solenoid valve. .
- the present disclosure is directed to a refrigeration system configured to separate a refrigeration cycle including a compressor and a first evaporator and a refrigerant circulation circuit including a second evaporator, and to be mounted on a vehicle.
- An object is to provide a refrigeration system.
- the refrigeration system configures a refrigeration cycle that circulates the first refrigerant together with a compressor that compresses the first refrigerant including the lubricating oil, and absorbs heat from the second refrigerant to thereby absorb the first refrigerant.
- a first evaporator that evaporates A condenser that dissipates heat from the second refrigerant to the first refrigerant and condenses the second refrigerant;
- a refrigeration system configured to separate a refrigeration cycle including a compressor and a first evaporator and a refrigerant circulation circuit including a second evaporator. Accordingly, the first refrigerant and the second refrigerant can be prevented from being mixed, so that the lubricating oil can be prevented from flowing to the second evaporator.
- FIG. 2 is a cutaway view of the refrigerant heat exchanger of FIG. 1.
- FIG. 1 shows the overall layout of this embodiment in which an in-vehicle refrigeration system 1 is applied to an automobile.
- the in-vehicle refrigeration system 1 is mounted on an automobile and includes a front seat air conditioning unit 2 and a rear seat air conditioning unit 3.
- the front seat air conditioning unit 2 is disposed inside the front instrument panel in the vehicle interior and air-conditions the area on the front seat side in the vehicle interior.
- the front seat side air conditioning unit 2 has a case 2a that forms an air passage, and has a blower (not shown) arranged in an upstream portion of the case 2a. This blower blows vehicle interior air or vehicle exterior air switched and introduced from an inside / outside air switching box (not shown).
- vehicle interior air is referred to as inside air
- vehicle exterior air is referred to as outside air.
- the evaporator 14 of the refrigeration cycle 10 is disposed downstream of the blower as a cooling heat exchanger for cooling the blown air.
- the refrigeration cycle 10 of this embodiment is a well-known vapor compression refrigeration cycle, and includes a compressor 11 that is driven by a vehicle engine 5 via an electromagnetic clutch.
- the refrigerant is compressed to a high temperature and a high pressure by the compressor 11, and the gas refrigerant discharged from the compressor 11 is introduced into a condenser 12, and the gas refrigerant is blown by a cooling fan (not shown) in the condenser 12. Heat exchanges and condenses.
- the refrigerant that has passed through the condenser 12 is reduced in pressure to a low-pressure refrigerant by the pressure reducing valve 13, and the low-pressure refrigerant after the pressure reduction absorbs heat from the inside air in the evaporator 14 and evaporates.
- the gas refrigerant that has evaporated in the evaporator 14 is again sucked into the compressor 11 and compressed.
- the inside air to which the low-pressure refrigerant absorbs heat in the evaporator 14 is front air in the vehicle traveling direction in the passenger compartment.
- the front air in the vehicle traveling direction in the passenger compartment is a second object to be cooled and an additional object to be cooled other than the second refrigerant.
- a heater core 2 b that heats the conditioned air with hot water from the vehicle engine is disposed on the downstream side of the air flow of the evaporator 14.
- a bypass passage 2c is formed on the side of the heater core 2b.
- An air mix door 2d is rotatably arranged adjacent to the heater core 2b. By selecting the rotational position of the air mix door 2d, the air volume ratio between the warm air heated through the heater core 2b and the cool air passing through the bypass passage 2c is adjusted, and the temperature of the blown air blown out into the vehicle interior is adjusted. .
- a defroster blowing opening, a face blowing opening, and a foot blowing opening are opened at the downstream end of the front seat air conditioning unit 2. These openings are opened and closed by a blowing mode door (not shown).
- the conditioned air that has passed through the defroster blowing opening, the face blowing opening, and the foot blowing opening is blown toward the inner surface of the vehicle window glass, the head of the front seat occupant, and the foot of the front seat occupant.
- the rear seat side air conditioning unit 3 is arranged at the rear part of the vehicle interior, for example, at the side part of the rear seat so as to air-condition the rear seat side of the vehicle interior.
- a blower (not shown) that sucks and blows in the inside air is provided, and a rear seat side evaporator 22 is disposed downstream of the blower.
- the inside air sucked into the blower is the rear air in the traveling direction in the passenger compartment.
- the evaporator 22 cools the inside air blown from the blower with a refrigerant.
- the evaporator 22 and the condenser 21 constitute a refrigerant circulation circuit 20 that circulates the refrigerant.
- the refrigerant circulation circuit 20 circulates the refrigerant according to the thermosiphon principle.
- the evaporator 22 and the condenser 21 are configured so that the refrigerant flows in the refrigerant circulation circuit 20 and the refrigeration cycle 10 independently of each other.
- the refrigerant circulating in the refrigeration cycle 10 contains lubricating oil.
- the lubricating oil is used to lubricate the bearings and the compression mechanism of the compressor 11.
- the refrigerant circulating in the refrigeration cycle 10 is referred to as a first refrigerant
- the refrigerant circulating in the refrigerant circulation circuit 20 is referred to as a second refrigerant.
- a refrigerant such as HFC-134a is used as the first refrigerant and the second refrigerant.
- a face blowout opening and a blowout mode door are arranged at a site immediately after the evaporator 22.
- the cool air cooled by the evaporator 22 is blown out from the face blowing opening through the rear seat-side face duct and from the outlet toward the rear seat-side occupant.
- the condenser 21 and the evaporator 14 constitute a refrigerant heat exchanger 30 that exchanges heat between the first refrigerant and the second refrigerant. Specifically, the condenser 21 cools and condenses the second refrigerant with the refrigerant flowing through the evaporator 14.
- the structure of the refrigerant heat exchanger 30 of the present embodiment will be described with reference to FIGS. 2A and 2B.
- the arrow Ya indicates the flow direction of the first refrigerant
- the arrow Yb indicates the flow direction of the second refrigerant.
- the refrigerant heat exchanger 30 includes tanks 40, 41, 42, a plurality of tubes 43, a plurality of corrugated fins 44, tanks 50, 51, and a plurality of tubes 52.
- the plurality of tubes 43 are arranged in two rows in the air flow direction.
- a plurality of tubes 43 arranged on the upstream side in the air flow direction among the plurality of tubes 43 are referred to as a plurality of upstream tubes 43.
- the plurality of tubes 43 arranged on the downstream side in the air flow direction among the plurality of tubes 43 are referred to as a plurality of downstream tubes 43.
- the plurality of upstream tubes 43 are arranged in a direction orthogonal to the air flow direction.
- the plurality of downstream tubes 43 are arranged in a direction orthogonal to the air flow direction.
- the tank 40 distributes the low-pressure refrigerant supplied from the pressure reducing valve 13 to each of the plurality of upstream tubes 43.
- the tank 42 collects the refrigerant flowing from the plurality of upstream tubes 43 and distributes the refrigerant to each of the plurality of downstream tubes 43.
- the tank 41 collects the refrigerant flowing from the plurality of downstream tubes 43 and supplies it to the inlet side of the compressor 11.
- the plurality of tubes 52 are arranged in a distributed manner in the direction in which the tubes 43 are arranged (hereinafter referred to as the tube arrangement direction). In other words, the plurality of tubes 52 are arranged in a direction orthogonal to the air flow direction.
- Each of the plurality of tubes 52 is sandwiched between two adjacent upstream tubes 43 among the plurality of upstream tubes 43 and is adjacent to each other among the plurality of downstream tubes 43. It is sandwiched between the two downstream tubes 43.
- the refrigerant flow path formed by the plurality of tubes 52 and the refrigerant flow path formed by the plurality of tubes 43 are configured independently of each other, and heat is exchanged between the first refrigerant and the second refrigerant. Will be.
- a plurality of corrugated fins 44 are arranged between any two of the plurality of upstream tubes 43.
- a plurality of corrugated fins 44 are arranged between any two of the plurality of downstream tubes 43.
- the plurality of corrugated fins 44 are arranged on the surface of the corresponding tube 43 among the plurality of tubes 43 to expand the heat exchange area of the tube 43.
- a plurality of upstream tubes 43, a plurality of tubes 52, and a plurality of corrugated fins 44 are arranged in the tube arrangement direction.
- the plurality of downstream tubes 43, the plurality of tubes 52, and the plurality of corrugated fins 44 are arranged in the tube arrangement direction.
- the refrigerant heat exchanger 30 of the present embodiment is configured such that the tanks 40, 41, 42, 50, 51, the plurality of tubes 43, the plurality of tubes 52, and the plurality of corrugated fins 44 are integrally formed by brazing or the like. It is molded.
- FIG. 3 shows the configuration of the refrigeration cycle 10 and the refrigerant circulation circuit 20.
- the tank 50 distributes the refrigerant flowing from the tank 22 b of the evaporator 22 to a plurality of tubes 52.
- the tank 51 supplies the refrigerant flowing from the plurality of tubes 52 to the tank 22 c of the evaporator 22.
- the tanks 40, 41, 42, the plurality of tubes 43, and the plurality of corrugated fins 44 constitute the evaporator 14.
- the tanks 50 and 51 and the plurality of tubes 52 constitute the condenser 21.
- the refrigerant flow path formed by the tanks 40, 41, and 42 and the refrigerant flow path formed by the tanks 50, 51 are configured independently of each other.
- the refrigerant flow path formed by the plurality of tubes 43 and the refrigerant flow path formed by the plurality of tubes 52 are configured independently of each other.
- the tanks 40, 41, 42 and the plurality of tubes 43 constitute a refrigerant flow path of the evaporator 14.
- the tanks 50 and 51 and the plurality of tubes 52 constitute the refrigerant flow path of the condenser 21.
- coolant flow path of the condenser 21 are comprised mutually independently.
- the refrigeration cycle 10 and the refrigerant circulation circuit 20 are configured independently.
- the flow direction of the refrigerant through which the refrigerant flows is set to be a downward direction from the horizontal direction.
- the evaporator 22 includes tanks 22b and 22c and a plurality of tubes 22a.
- the tank 22c distributes the refrigerant flowing from the tank 51 to the plurality of tubes 22a.
- the tank 22b collects the refrigerant flowing from the plurality of tubes 22a and supplies it to the tank 50.
- the tank 51 is arranged on the lower side in the vertical direction with respect to the tank 50 and on the upper side in the heaven region with respect to the tank 22c.
- the tank 22b is disposed on the upside of the tank 22c and on the downside of the tank 50 in the upside down direction.
- the refrigerant flow direction in which the refrigerant flows is set in an upward direction from the horizontal direction.
- a refrigerant pipe 60 through which the liquid refrigerant flows is connected between the tank 51 and the tank 22c.
- a refrigerant pipe 61 through which a gas refrigerant flows is connected between the tank 50 and the tank 22b.
- the outer surfaces of the refrigerant pipes 60 and 61 are covered with a heat insulating material 63.
- the compressor 11 sucks the refrigerant (that is, the first refrigerant) from the evaporator 14 and compresses and discharges the sucked refrigerant to a high temperature and high pressure.
- the discharged refrigerant is introduced into the condenser 12, where the gas refrigerant is condensed by exchanging heat with the outside air.
- the refrigerant that has passed through the condenser 12 is reduced in pressure to a low-pressure refrigerant by the pressure reducing valve 13.
- the decompressed low-pressure refrigerant absorbs heat from the passenger compartment air in the evaporator 14 and evaporates.
- the vehicle interior air that is to absorb heat is air on the front side in the traveling direction of the vehicle interior.
- the evaporated refrigerant is sucked into the compressor 11 again.
- the tank 50 distributes the refrigerant flowing from the tank 22 b of the evaporator 22 to a plurality of tubes 52.
- the second refrigerant is cooled by the first refrigerant and condensed to become a liquid refrigerant.
- This liquid refrigerant flows toward the tank 22c through the refrigerant pipe 60 by natural convection.
- the tank 22c distributes the liquid refrigerant to the plurality of tubes 22a.
- the refrigerant flowing through the plurality of tubes 22a absorbs heat from the passenger compartment air and evaporates into a gas refrigerant.
- the specific gravity of the second refrigerant is reduced by the second refrigerant absorbing heat from the passenger compartment air in the plurality of tubes 22a.
- This vehicle interior air is the rear air in the vehicle traveling direction in the vehicle interior.
- coolant which is a gas refrigerant
- the evaporator 14 constitutes the refrigeration cycle 10 that circulates the first refrigerant together with the compressor 11 that compresses the first refrigerant containing the lubricating oil.
- the first refrigerant is evaporated by absorbing heat from the two refrigerants.
- the condenser 21 absorbs heat from the first refrigerant and condenses the second refrigerant.
- the evaporator 22 constitutes the refrigerant circulation circuit 20 in which the second refrigerant circulates together with the condenser 21 and absorbs heat from the rear air in the vehicle traveling direction (that is, the first object to be cooled and the basic object to be cooled) in the vehicle interior. As a result, the second refrigerant is evaporated.
- the refrigerant flow path formed by the tanks 40, 41 and 42 of the evaporator 14 and the refrigerant flow path formed by the tanks 50 and 51 of the condenser 21 are configured independently.
- the plurality of tubes 52 are respectively sandwiched between two adjacent tubes 43 of the plurality of tubes 43, so that the refrigerant flow path formed by the plurality of tubes 43 and the plurality of tubes 52 are formed.
- the refrigerant flow path which comprises is comprised independently of each other. For this reason, the refrigerant
- the in-vehicle refrigeration system 1 can be configured to separate the refrigeration cycle 10 including the compressor 11 and the evaporator 14 and the refrigerant circulation circuit 20 including the evaporator 22. it can. Therefore, the first refrigerant and the second refrigerant are not mixed. For this reason, it is possible to avoid the lubricating oil in the first refrigerant from circulating to the refrigerant circulation circuit 20. This eliminates the accumulation of lubricating oil on the evaporator 22 side. Therefore, the lubricating oil easily returns to the compressor 11, and the lack of lubricating oil in the compressor 11 is solved. As a result, the quality of the compressor 11 can be improved.
- the plurality of tubes 52 are each arranged in a distributed manner in the tube arrangement direction and between two adjacent tubes 43 among the plurality of tubes 43. It is pinched. For this reason, heat exchange can be favorably performed between the first refrigerant and the second refrigerant without mixing the second refrigerant flowing through the tube 52 and the first refrigerant flowing through the tube 43.
- the refrigeration cycle 10 and the refrigerant circulation circuit 20 are configured to be independent of each other. For this reason, it is not necessary to determine the refrigerant piping shape for preventing oil accumulation and the design specifications of the electric control operation pattern for each vehicle.
- the oil return control is eliminated, the shape design of the refrigerant return pipe is facilitated, and the labor of making is reduced.
- the oil pool control can realize stable temperature control of the vehicle interior air without temporarily increasing the air temperature blown from the driving-side evaporator of the two evaporators. The deterioration of the feeling of indoor air temperature can be eliminated.
- the refrigeration cycle 10 and the refrigerant circulation circuit 20 are configured to be independent of each other. For this reason, it is not necessary to provide an expansion valve or a solenoid valve on the rear seat side evaporator side, and it is not necessary to consider the lubricating oil circulating to the rear seat side evaporator side. For this reason, the usage-amount of the lubricating oil used for a refrigerating system can be reduced. Therefore, cost can be reduced.
- the refrigerant evaporation temperature (or refrigerant evaporation pressure), superheat between the two evaporators.
- the efficiency of the refrigeration cycle may decrease due to the difference in the amount and the amount of pressure loss in the low-pressure piping.
- the number of evaporators connected to the refrigeration cycle 10 is one. For this reason, the influence by the difference of refrigerant
- FIG. 4 shows an overall view of the in-vehicle refrigeration system 1 according to the second embodiment. This embodiment differs from the first embodiment in the configuration of the evaporator, and the description of the other configurations is omitted.
- elements denoted by the same reference numerals as those in FIG. 3 are the same as the elements in FIG. 3, and the description thereof is omitted.
- evaporators 14A and 14B are provided instead of the evaporator 14.
- the evaporators 14 ⁇ / b> A and 14 ⁇ / b> B are connected in series between the refrigerant outlet of the pressure reducing valve 13 and the refrigerant inlet of the compressor 11.
- the evaporator 14A cools the passenger compartment air with the first refrigerant.
- the evaporator 14 ⁇ / b> B constitutes the refrigerant heat exchanger 30 together with the condenser 21.
- the evaporator 14B cools the second refrigerant flowing through the condenser 21 with the first refrigerant.
- FIG. 5 shows an overall view of the in-vehicle refrigeration system 1 according to the first modification. 5, elements denoted by the same reference numerals as those in FIG. 4 are the same as the elements in FIG. 4, and description thereof is omitted.
- the evaporator 14A cools the passenger compartment air with the first refrigerant.
- the evaporator 14 ⁇ / b> B constitutes the refrigerant heat exchanger 30 together with the condenser 21.
- the evaporator 14B cools the second refrigerant flowing through the condenser 21 with the first refrigerant.
- FIG. 6A shows an overall view of the in-vehicle refrigeration system 1 according to the third embodiment.
- the seat air-conditioning unit 70 is a unit that cools the air blown out from the seat surface on which the occupant sits among the seats in the passenger compartment by the evaporator 22. That is, the air cooled by the second refrigerant in the evaporator 22 is blown out from the seating surface.
- the evaporator 22 constitutes the in-vehicle electric device 70A.
- FIG. 7 shows an overall view of the in-vehicle refrigeration system 1 according to the fourth embodiment.
- an in-vehicle electric device 70A an in-vehicle battery, a vehicle driving electric motor, or an electric control device may be used.
- the vehicle driving electric motor generates a driving force for rotating the driving wheels based on the output power of the in-vehicle battery.
- an AC motor can be used as the vehicle driving electric motor.
- the electric control device is an inverter circuit that outputs an alternating current to the vehicle travel electric motor based on the output power of the in-vehicle battery in order to drive the vehicle travel electric motor.
- FIG. 8 shows an overall view of the in-vehicle refrigeration system 1 according to the fifth embodiment.
- FIG. 8 elements denoted by the same reference numerals as those in FIG. 1 are the same as the elements in FIG. 1, and description thereof is omitted.
- the refrigerant pipe 60 of the refrigerant circuit 20 of this embodiment is provided with a circulation pump 80 for liquid refrigerant pressure feeding.
- the circulation pump 80 generates a flow of liquid refrigerant flowing in the refrigerant pipe 60 from the refrigerant outlet side of the condenser 21 (that is, the tank 51 side) to the refrigerant inlet side of the evaporator 22 (that is, the tank 22c). For this reason, the circulation pump 80 generates the flow of the second refrigerant in order to assist the circulation of the second refrigerant in the refrigerant circuit 20 by natural convection.
- the frame 90 under the floor of the automobile projects upward.
- the refrigerant pipes 60 and 61 are routed around the frame 90. Therefore, the highest highest portion 60 a of the refrigerant pipes 60 and 61 is higher than the lowest lowest portion 22 g of the evaporator 22.
- the refrigerant pipe 60 of the refrigerant circulation circuit 20 is provided with the circulation pump 80 for liquid refrigerant pressure feeding as described above. For this reason, the refrigerant can be circulated in the refrigerant circulation circuit 20 over the highest portion 60a.
- FIG. 9 shows an overall view of an in-vehicle refrigeration system 1 according to a first modification of the fifth embodiment.
- elements denoted by the same reference numerals as those in FIG. 8 are the same as the elements in FIG. 8, and description thereof is omitted.
- the ceiling side air conditioning unit 3A is disposed on the ceiling side in the vehicle interior, and blows out the vehicle interior air cooled by the evaporator 22 to the vehicle rear seat side.
- the evaporator 22 is disposed on the heaven region improvement side with respect to the condenser 21.
- the circulation pump 80 generates a flow of the second refrigerant in order to assist the second refrigerant in the refrigerant circulation circuit 20 to circulate by natural convection.
- FIG. 10 shows an overall view of the in-vehicle refrigeration system 1 according to the sixth embodiment. 10, elements denoted by the same reference numerals as those in FIG. 3 are the same as the elements in FIG. 3, and description thereof is omitted.
- Refrigerant circulation circuits 20A and 20B each circulate a second refrigerant.
- the refrigerant circulation circuits 20A and 20B are configured independently.
- the refrigerant circulation circuit 20A corresponds to the first refrigerant circulation circuit, and includes a condenser 21A and an evaporator 22A.
- the refrigerant circuit 20B corresponds to the second refrigerant circuit, and includes a condenser 21B and an evaporator 22B.
- the condensers 21A and 21B and the evaporator 14 are configured so that the second refrigerant flowing in the refrigerant circulation circuit 20A and the second refrigerant flowing in the refrigerant circulation circuit 20B are not mixed.
- the condensers 21A, 21B and the evaporator 14 constitute a refrigerant heat exchanger 30.
- the evaporator 14 absorbs heat from the second refrigerant flowing through the condensers 21 ⁇ / b> A and 21 ⁇ / b> B by the first refrigerant and also absorbs heat from the air on the front side of the vehicle interior.
- the condensers 21A and 21B are configured in the same manner as the condenser 21 in FIG.
- the condensers 21 ⁇ / b> A and 21 ⁇ / b> B cool the second refrigerant with the first refrigerant flowing through the evaporator 14.
- the condenser 21A corresponds to one condenser of two or more condensers.
- the condenser 21B corresponds to a condenser other than the one condenser among the two or more condensers.
- the evaporators 22A and 22B are configured similarly to the evaporator 22 of FIG.
- the evaporators 22A and 22B cool the air on the rear side in the vehicle traveling direction in the vehicle interior by the second refrigerant.
- the evaporator 22A corresponds to one second evaporator among two or more second evaporators.
- the evaporator 22B corresponds to a second evaporator other than the one second evaporator among the two or more second evaporators.
- the condenser 21A and the evaporator 22A are connected by the refrigerant pipes 60 and 61.
- the condenser 21B and the evaporator 22B are connected by refrigerant pipes 60 and 61.
- FIG. 11 shows an overall view of the in-vehicle refrigeration system 1 according to the seventh embodiment. 11, elements denoted by the same reference numerals as those in FIG. 3 are the same as the elements in FIG. 3, and description thereof is omitted.
- the refrigerant circulation circuit 20 of the present embodiment includes a regenerator heat exchanger 22C instead of the evaporator 22 of FIG.
- the regenerator heat exchanger 22C includes tanks 22b and 22c and a plurality of tubes 22a.
- the tank 22c distributes the refrigerant flowing from the tank 51 of the condenser 21 to the plurality of tubes 22a.
- the tank 22b collects the refrigerant flowing from the plurality of tubes 22a and supplies it to the tank 50 of the condenser 21.
- a cold storage material 22e is disposed between two adjacent tubes 22a among the plurality of tubes 22a. The cold storage material 22e stores cold heat by being cooled by the second refrigerant and frozen.
- the tank 51 of the condenser 21 and the tank 22c of the regenerator heat exchanger 22C are connected by a refrigerant pipe 60.
- a refrigerant pipe 61 connects the tank 50 of the condenser 21 and the tank 22b of the regenerator heat exchanger 22C.
- the refrigerant pipe 60 is provided with a circulation pump 80 for liquid refrigerant pressure feeding. Circulation pump 80 is controlled by control device 100.
- the tank 22c is disposed on the lower side in the vertical direction than the tank 22b.
- the cold storage mode In the cold storage mode, the control device 100 controls the circulation pump 80 so that the second refrigerant flows from the tank 22b side to the tank 50 side and the second refrigerant flows from the tank 51 side to the tank 22c side as indicated by an arrow Yd. .
- the cold storage mode is a mode in which the cold storage material 22e is cooled by the second refrigerant.
- the tank 50 distributes the second refrigerant flowing from the tank 22b to each of the plurality of tubes 52, and the tank 51 collects the second refrigerant from the plurality of tubes 52 and tanks as indicated by an arrow Yd. 22c.
- the tank 22c distributes the second refrigerant from the tank 51 to each of the plurality of tubes 22a, and the tank 22b collects the second refrigerant from the plurality of tubes 22a and supplies it to the tank 50.
- the second refrigerant flowing through the plurality of tubes 52 absorbs heat from the first refrigerant and condenses, and the second refrigerant flowing through the plurality of tubes 22a absorbs heat from the cold storage material 22e. That is, the 2nd refrigerant
- the control device 100 controls the circulation pump 80 so that the second refrigerant flows from the tank 50 side to the tank 22b side and the second refrigerant flows from the tank 22c side to the tank 51 side as indicated by an arrow Ye.
- the cooling mode is a mode in which heat is radiated from the second refrigerant to the air in the passenger compartment in an idle stop mode or the like. In the idle stop, the vehicle engine 5 is stopped, so the compressor 11 is stopped.
- the tank 22b distributes the second refrigerant flowing from the tank 50 to each of the plurality of tubes 22a
- the tank 22c collects the second refrigerant from the plurality of tubes 22a and supplies it to the tank 51.
- the tank 51 distributes the refrigerant from the tank 22 c to each of the plurality of tubes 52.
- the tank 50 collects the second refrigerant from the plurality of tubes 52 and supplies it to the tank 22b.
- the second refrigerant flowing through the plurality of tubes 52 absorbs heat from the passenger compartment air.
- This vehicle interior air is the air in the vehicle traveling direction front side in the vehicle interior.
- the second refrigerant flowing through the tube 52 absorbs heat from the passenger compartment air through the two tubes 43 sandwiching the tube 52.
- the second refrigerant flowing through the plurality of tubes 22a is cooled and condensed by the cold storage material 22e.
- the second refrigerant absorbs heat from the first refrigerant and condenses, and freezes the cold storage material 22e when the condensed second refrigerant flows through the plurality of tubes 22a.
- the second refrigerant flowing through the plurality of tubes 22a is cooled and condensed by the cold storage material 22e.
- the second refrigerant flowing through the plurality of tubes 52 absorbs heat from the vehicle interior air through the two tubes 43 sandwiching the tubes 52 and evaporates. For this reason, when the cooling capacity such as idle stop is insufficient, the air in the passenger compartment can be cooled using the cool storage material 22e.
- the on-vehicle refrigeration system 1 corresponds to the refrigeration system
- the evaporator 14A corresponds to the second heat exchanger
- the evaporator 14B corresponds to the first evaporator
- the evaporator 22 corresponds to the second evaporation.
- the tube 22a corresponds to the second tube.
- the tanks 22b and 22c correspond to the fourth tank and the third tank, respectively.
- the refrigerant heat exchanger 30 corresponds to the heat exchanger and also corresponds to the first heat exchanger.
- the tube 52 corresponds to the first tube.
- Tanks 50 and 51 correspond to the first tank and the second tank, respectively.
- the tube 43 corresponds to the third tube
- the tank 40 corresponds to the fifth tank
- the tank 41 corresponds to the sixth tank
- the circulation pump 80 corresponds to the auxiliary pump.
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Abstract
Description
第2冷媒から第1冷媒に放熱させて第2冷媒を凝縮させる凝縮器と、
凝縮器とともに第2冷媒が循環する冷媒循環回路を構成し、基本被冷却対象から吸熱することにより、凝縮後の第2冷媒を蒸発させる第2蒸発器と、を備え、
第1蒸発器の冷媒流路と凝縮器の冷媒流路が独立して構成されることにより、冷凍サイクルと冷媒循環回路とが独立して構成される。
以下、第1実施形態について説明する。図1は、自動車に車載冷凍システム1を適用した本実施形態の全体の配置レイアウトを示す。
この蒸発した後の冷媒は再度、圧縮機11に吸入される。
上記第1実施形態では、第1冷媒と第2冷媒の間の熱交換および第1冷媒と車室内空気の間の熱交換とが1つの冷媒熱交換器30によって行われる例について説明した。本実施形態では、これに代えて、第1冷媒と第2冷媒の間の熱交換および第1冷媒と車室内空気の間の熱交換とが独立した熱交換器で行われる。
上記第2実施形態では、蒸発器14A、14Bが減圧弁13の冷媒出口と圧縮機11の冷媒入口との間で直列に接続された例について説明した。本変形例ではこれに代えて、図5に示すように、蒸発器14A、14Bが減圧弁13の冷媒出口と圧縮機11の冷媒入口との間で並列に接続される。
上記第1、2の実施形態では、蒸発器22により後席側空調ユニット3が構成された例について説明した。本実施形態ではこれに代えて、蒸発器22によりシート空調ユニット70が構成される。
上記第3実施形態では、蒸発器22によりシート空調ユニット70が構成された例について説明した。本変形例ではこれに代えて、蒸発器22によって図6Bに示す車載保冷庫70Xの内部が冷却される。或いは、蒸発器22によって車載涼温庫内が冷却されてもよい。
上記第3実施形態では、蒸発器22によりシート空調ユニット70が構成された例についてについて説明した。本実施形態ではこれに代えて、蒸発器22により、車載電気機器70Aが構成される。
本第5実施形態では、上記第1実施形態において、冷媒循環回路20に液冷媒圧送用の補助ポンプが設けられた例について説明する。
上記第5実施形態では、蒸発器22によって後席側空調ユニット3が構成された例について説明した。本変形例ではこれに代えて、蒸発器22によって天井側空調ユニット3Aが構成される。
上記第1実施形態では、車載冷凍システム1において1つの冷媒循環回路20が設けられた例について説明した。本実施形態ではこれに代えて、車載冷凍システム1において2つの冷媒循環回路20A、20Bが設けられる。
本第7実施形態では、上記第1実施形態において、冷媒循環回路20の蒸発器に代えて蓄冷槽熱交換器が備えられた例について説明する。
(1)上記第1~第7実施形態では、車載冷凍システム1を自動車に適用した例について説明したが、これに代えて、車載冷凍システム1を自動車以外の移動体(例えば、電車、列車等)、或いは設置型の冷凍装置に適用してよい。
Claims (15)
- 冷凍システムであって、
潤滑油を含む第1冷媒を圧縮する圧縮機(11)とともに、前記第1冷媒を循環させる冷凍サイクル(10)を構成し、第2冷媒から吸熱して前記第1冷媒を蒸発させる第1蒸発器(14)と、
前記第2冷媒から前記第1冷媒に放熱させて前記第2冷媒を凝縮させる凝縮器(21)と、
前記凝縮器とともに前記第2冷媒が循環する冷媒循環回路(20)を構成し、基本被冷却対象から吸熱することにより、凝縮後の前記第2冷媒を蒸発させる第2蒸発器(22)と、を備え、
前記第1蒸発器の冷媒流路と前記凝縮器の冷媒流路が独立して構成されることにより、前記冷凍サイクルと前記冷媒循環回路とが独立して構成される冷凍システム。 - 前記第1蒸発器は、前記第2冷媒と前記第2冷媒以外の追加被冷却対象とを前記第1冷媒によって冷却する熱交換器(30)を構成する請求項1に記載の冷凍システム。
- 前記第1蒸発器および前記凝縮器は、前記第1冷媒によって前記第2冷媒を冷却する第1熱交換器(30)を構成し、
当該冷凍システムは、前記第1冷媒によって追加被冷却対象を冷却する第2熱交換器(14A)を備え、
前記第1熱交換器および前記第2熱交換器は、前記圧縮機の入口と出口の間で、前記第1冷媒の流れ方向に直列に配置されている請求項1に記載の冷凍システム。 - 前記第1蒸発器および前記凝縮器は、前記第1冷媒によって前記第2冷媒を冷却する第1熱交換器(30)を構成し、
当該冷凍システムは、前記第1冷媒によって追加被冷却対象を冷却する第2熱交換器(14A)を備え、
前記第1熱交換器および前記第2熱交換器は、前記圧縮機の入口と出口の間で、前記第1冷媒の流れ方向に並列に配置されている請求項1に記載の冷凍システム。 - 前記凝縮器(21A、21B)および前記第2蒸発器(22A、22B)をそれぞれ2つ以上備え、
前記2つ以上の凝縮器のうち1つの凝縮器は、前記2つ以上の第2蒸発器のうち1つの第2蒸発器とともに、第1の前記冷媒循環回路(20A)を構成し、
前記2つ以上の凝縮器のうち前記1つの凝縮器以外の他の凝縮器は、前記2つ以上の第2蒸発器のうち前記1つの第2蒸発器以外の他の第2蒸発器とともに、第2の前記冷媒循環回路(20B)を構成する請求項1に記載の冷凍システム。 - 前記第1蒸発器および前記2つ以上の凝縮器は、前記第2冷媒を前記第1冷媒によって冷却する熱交換器(30)を構成する請求項5に記載の冷凍システム。
- 前記凝縮器は、前記第2冷媒をそれぞれ流通させる複数本の第1チューブ(52)と、前記第2蒸発器によって蒸発された前記第2冷媒を前記複数本の第1チューブのそれぞれに分配する第1タンク(50)と、前記複数本の第1チューブから流れる前記第2冷媒を回収して前記第2蒸発器側に導く第2タンク(51)と、を備え、前記複数本の第1チューブ内を流通する前記第2冷媒は、前記第1冷媒に放熱して凝縮されるものであり、
前記第2蒸発器は、前記第2冷媒をそれぞれ流通させる複数本の第2チューブ(22a)と、凝縮後の前記第2冷媒を前記複数本の第2チューブのそれぞれに分配する第3タンク(22c)と、前記複数本の第2チューブから流れる前記第2冷媒を回収して前記第1タンクに導く第4タンク(22b)と、を備え、前記複数本の第2チューブ内を流通する前記第2冷媒は、前記基本被冷却対象から吸熱して蒸発するものである請求項1に記載の冷凍システム。 - 前記第1蒸発器は、前記第1冷媒をそれぞれ流通させる複数本の第3チューブ(43)と、前記第1冷媒を前記複数本の第3チューブのそれぞれに分配する第5タンク(40)と、前記複数本の第3チューブから流れる前記第1冷媒を回収して前記圧縮機の入口に導く第6タンク(41)と、を備え、
前記第5タンクおよび前記第6タンクが構成する冷媒流路と、前記第1タンクおよび前記第2タンクが構成する冷媒流路とが、互いに独立して構成されており、
前記複数本の第1チューブは、それぞれ、前記複数本の第3チューブのうち隣り合う2本の第3チューブの間に配置されることにより、前記複数本の第1チューブが構成する冷媒流路と、前記複数本の第3チューブが構成する冷媒流路とが、互いに独立して構成されており、
前記2本の第3チューブの間に配置されている前記第1チューブを流れる前記第2冷媒は、前記2本の第3チューブを流れる前記第1冷媒により冷却される請求項7に記載の冷凍システム。 - 前記第2タンクは、前記第1タンクに対して天地方向下側に配置され、かつ前記第3タンクに対して天地方向上側に配置されており、
前記第4タンクは、前記第3タンクに対して天地方向上側に配置され、かつ前記第1タンクに対して天地方向下側に配置されており、
前記第2冷媒が自然対流によって、前記第1タンクから前記複数本の第1チューブ、および前記第2タンクを通して前記第3タンクに流れ、さらに前記第3タンクから前記第2チューブ、および前記第4タンクを通して前記第1タンクに流れる請求項8に記載の冷凍システム。 - 前記冷媒循環回路には、前記第2冷媒が前記自然対流によって流れることを補助するように前記第2冷媒の流れを発生させる補助ポンプ(80)が設けられていることを請求項9に記載の冷凍システム。
- 当該冷凍システムは自動車に搭載されるものであり、
前記基本被冷却対象は、前記車室内のうち車両進行方向後側空気であり、
前記追加被冷却対象は、前記車室内のうち車両進行方向前側空気である請求項1ないし10のいずれか1つに記載の冷凍システム。 - 当該冷凍システムは自動車に搭載されるものであり、
前記第2蒸発器は、車載保冷庫(70X)の内部を前記基本被冷却対象として冷却する請求項1ないし10のいずれか1つに記載の冷凍システム。 - 当該冷凍システムは自動車に搭載されるものであり、
前記第2蒸発器は、車室内の座席のうち乗員が着座する座面から吹き出される空気を前記基本被冷却対象として冷却する請求項1ないし10のいずれか1つに記載の冷凍システム。 - 当該冷凍システムは自動車に搭載されるものであり、
前記第2蒸発器は、前記基本被冷却対象としての車載電気機器(70A)を冷却する請求項1ないし10のいずれか1つに記載の冷凍システム。 - 請求項7または8に記載の冷凍システムを備え、前記第2蒸発器には前記基本被冷却対象としての蓄冷材が設けられ、前記第1蒸発器が前記第2冷媒と車室内空気とを前記第1冷媒によって冷却する車載冷凍システムであって、
前記第2タンクおよび前記第3タンクのうち一方のタンクから他方のタンクに流れる前記第2冷媒の流れを発生させることにより、前記冷媒循環回路において前記第2冷媒を循環させる循環ポンプ(80)と、
前記循環ポンプを制御する制御装置(100)と、を備え
前記制御装置は、蓄冷モードでは、前記第2タンクから前記第3タンクに前記第2冷媒を流すように前記循環ポンプを制御し、
前記蓄冷モードでは、前記第1タンクからの第2冷媒が前記複数本の第1チューブを流れる際に、前記第2冷媒が前記第1冷媒から吸熱され、前記第3タンクからの第2冷媒が前記複数本の第2チューブを流れる際に、前記第2冷媒が前記蓄冷材を冷却して、
前記制御装置は、冷房モードでは、前記第3タンクから前記第2タンクに前記第2冷媒を流すように前記循環ポンプを制御し、
前記冷房モードでは、前記第2タンクは、前記第3タンクからの第2冷媒を前記複数本の第1チューブのそれぞれに分配し、前記第1タンクは、前記複数本の第1チューブからの前記第2冷媒を回収して前記第4タンクに供給し、前記第4タンクは、前記第1タンクから流れる第2冷媒を前記複数本の第2チューブのそれぞれに分配し、前記第3タンクは、前記複数本の第2チューブからの第2冷媒を回収して前記第2タンクに供給し、前記複数本の第2チューブを流通する第2冷媒は、前記蓄冷材によって冷却され、この冷却された第2冷媒が前記複数本の第1チューブを流通する際に、前記車室内空気を冷却する車載冷凍システム。
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| US15/741,137 US10414244B2 (en) | 2015-07-08 | 2016-06-23 | Refrigeration system, and in-vehicle refrigeration system |
| DE112016003070.3T DE112016003070T5 (de) | 2015-07-08 | 2016-06-23 | Kühlsystem und Kühlsystem im Fahrzeug |
| JP2017527172A JP6528844B2 (ja) | 2015-07-08 | 2016-06-23 | 冷凍システム、および車載冷凍システム |
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| JP2014126339A (ja) * | 2012-12-27 | 2014-07-07 | Denso Corp | 熱交換器 |
| JP2014169851A (ja) * | 2013-03-05 | 2014-09-18 | Denso Corp | 熱交換器 |
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| WO2020004573A1 (ja) * | 2018-06-29 | 2020-01-02 | 株式会社デンソー | 機器温調装置 |
| WO2020004574A1 (ja) * | 2018-06-29 | 2020-01-02 | 株式会社デンソー | 機器温調装置 |
| JP2020008271A (ja) * | 2018-06-29 | 2020-01-16 | 株式会社デンソー | 機器温調装置 |
| JP2020008270A (ja) * | 2018-06-29 | 2020-01-16 | 株式会社デンソー | 機器温調装置 |
| FR3092277A1 (fr) * | 2019-02-06 | 2020-08-07 | Valeo Systemes Thermiques | Boucle diphasique pour véhicule automobile |
| KR20220132861A (ko) * | 2021-03-24 | 2022-10-04 | 인하대학교 산학협력단 | 공기의 대류 현상을 이용한 차량의 실내온도제어장치 |
| KR102526551B1 (ko) * | 2021-03-24 | 2023-04-26 | 인하대학교 산학협력단 | 공기의 대류 현상을 이용한 차량의 실내온도제어장치 |
| US20250162382A1 (en) * | 2023-11-16 | 2025-05-22 | Hyundai Motor Company | Cabin cooling/heating system with cabin floor cooling/heating function for a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180194197A1 (en) | 2018-07-12 |
| JPWO2017006775A1 (ja) | 2017-11-30 |
| CN107850346B (zh) | 2020-07-31 |
| DE112016003070T5 (de) | 2018-03-22 |
| US10414244B2 (en) | 2019-09-17 |
| CN107850346A (zh) | 2018-03-27 |
| JP6528844B2 (ja) | 2019-06-12 |
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