CN106537065B - 制冷循环装置 - Google Patents

制冷循环装置 Download PDF

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Publication number
CN106537065B
CN106537065B CN201580034789.5A CN201580034789A CN106537065B CN 106537065 B CN106537065 B CN 106537065B CN 201580034789 A CN201580034789 A CN 201580034789A CN 106537065 B CN106537065 B CN 106537065B
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CN
China
Prior art keywords
refrigerant
heat exchanger
air
compressor
indoor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201580034789.5A
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English (en)
Chinese (zh)
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CN106537065A (zh
Inventor
桑原干治
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Denso Corp
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Denso Corp
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Publication date
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Publication of CN106537065A publication Critical patent/CN106537065A/zh
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00642—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/0075—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being solar radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3207—Control means therefor for minimizing the humidity of the air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3213—Control means therefor for increasing the efficiency in a vehicle heat pump
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H2001/00957—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 locations with heat exchange within the refrigerant circuit itself, e.g. cross-, counter-, or parallel heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B60H2001/326—Cooling devices information from a variable is obtained related to temperature of the refrigerant at a condensing unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B60H2001/3263—Cooling devices information from a variable is obtained related to temperature of the refrigerant at an evaporating unit
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02732—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using two three-way valves
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
CN201580034789.5A 2014-06-27 2015-06-16 制冷循环装置 Active CN106537065B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014132115A JP6277888B2 (ja) 2014-06-27 2014-06-27 冷凍サイクル装置
JP2014-132115 2014-06-27
PCT/JP2015/003008 WO2015198559A1 (ja) 2014-06-27 2015-06-16 冷凍サイクル装置

Publications (2)

Publication Number Publication Date
CN106537065A CN106537065A (zh) 2017-03-22
CN106537065B true CN106537065B (zh) 2019-06-04

Family

ID=54937669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201580034789.5A Active CN106537065B (zh) 2014-06-27 2015-06-16 制冷循环装置

Country Status (5)

Country Link
US (1) US10493818B2 (enExample)
JP (1) JP6277888B2 (enExample)
CN (1) CN106537065B (enExample)
DE (1) DE112015003005T5 (enExample)
WO (1) WO2015198559A1 (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6088753B2 (ja) * 2012-06-13 2017-03-01 サンデンホールディングス株式会社 車両用空気調和装置
KR101626675B1 (ko) * 2014-11-12 2016-06-01 엘지전자 주식회사 공기조화기 및 그 제어방법
DE102016214119A1 (de) 2016-08-01 2018-02-01 Volkswagen Aktiengesellschaft Klimatisierungsvorrichtung für ein Kraftfahrzeug und Verfahren zu deren Betrieb
JP6699460B2 (ja) * 2016-08-30 2020-05-27 株式会社デンソー 冷凍サイクル装置
JP6683076B2 (ja) * 2016-09-02 2020-04-15 株式会社デンソー 冷凍サイクル装置
JP6910210B2 (ja) * 2017-02-03 2021-07-28 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 空気調和装置
JP2018136107A (ja) * 2017-02-23 2018-08-30 株式会社デンソー 冷凍サイクル装置
JP6791052B2 (ja) * 2017-07-31 2020-11-25 株式会社デンソー 空調装置
JP6733625B2 (ja) * 2017-08-10 2020-08-05 株式会社デンソー 冷凍サイクル装置
CN107436048A (zh) * 2017-08-25 2017-12-05 北京汽车股份有限公司 车辆的空调系统以及车辆
JP2019100688A (ja) * 2017-12-08 2019-06-24 株式会社デンソー ヒートポンプシステム
FR3077377A1 (fr) * 2018-01-31 2019-08-02 Valeo Systemes Thermiques Procede de controle d'un systeme de traitement thermique d'un element d'une chaine de traction electrique de vehicule
JP7095420B2 (ja) * 2018-06-08 2022-07-05 株式会社デンソー 冷凍サイクル装置
JP7151206B2 (ja) * 2018-06-21 2022-10-12 株式会社デンソー 冷凍サイクル装置
JP7028079B2 (ja) * 2018-06-22 2022-03-02 株式会社デンソー 冷凍サイクル装置
CN108759209A (zh) * 2018-07-11 2018-11-06 陈展伟 电磁式冷媒热交换装置、除湿装置及应用除湿装置的设备
JP7099899B2 (ja) * 2018-07-25 2022-07-12 三菱重工サーマルシステムズ株式会社 車両用空調装置
JP7159712B2 (ja) * 2018-09-06 2022-10-25 株式会社デンソー 冷凍サイクル装置
JP7059966B2 (ja) * 2019-02-28 2022-04-26 株式会社デンソー 冷凍サイクル装置
JP7380199B2 (ja) * 2019-12-26 2023-11-15 株式会社デンソー 冷凍サイクル装置
JP7380273B2 (ja) * 2020-02-04 2023-11-15 株式会社デンソー 冷凍サイクル装置
DE102020126580B3 (de) 2020-10-09 2022-01-13 Viessmann Climate Solutions Se Kältekreislaufvorrichtung und Verfahren zum Betrieb einer solchen Kältekreislaufvorrichtung
DE102020126579A1 (de) 2020-10-09 2022-04-14 Viessmann Climate Solutions Se Verfahren zum Betrieb einer Kältekreislaufvorrichtung
MX2023009056A (es) * 2021-03-03 2023-08-11 Mitsubishi Electric Corp Dispositivo de ciclo de refrigeracion.
CN117015481B (zh) * 2021-04-09 2026-03-27 株式会社不二工机 阀装置和空调装置
US11747053B2 (en) * 2021-06-10 2023-09-05 Johnson Controls Technology Company Reheat operation for heat pump system
CN118528714A (zh) * 2023-02-22 2024-08-23 浙江极氪智能科技有限公司 热管理系统和车辆

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030182961A1 (en) * 2002-04-02 2003-10-02 Shin Nishida Vehicle air conditioner with heat pump refrigerant cycle
CN1606512A (zh) * 2001-12-19 2005-04-13 辛文特公司 用于交通工具的供热和制冷的蒸汽压缩系统
CN1828190A (zh) * 2005-02-28 2006-09-06 三洋电机株式会社 冷媒循环装置
CN102563943A (zh) * 2010-10-07 2012-07-11 威斯通全球技术公司 汽车空调设备的制冷剂循环回路
US20120255319A1 (en) * 2011-04-04 2012-10-11 Denso Corporation Refrigerant cycle device
US20140075972A1 (en) * 2012-09-17 2014-03-20 Visteon Global Technologies, Inc. Air conditioning system for a motor vehicle

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4311115B2 (ja) * 2002-09-17 2009-08-12 株式会社デンソー 空調装置
US7458226B2 (en) 2003-12-18 2008-12-02 Calsonic Kansei Corporation Air conditioning system, vehicular air conditioning system and control method of vehicular air conditioning system
JP2005180762A (ja) 2003-12-18 2005-07-07 Calsonic Kansei Corp 空調装置
JP2006242403A (ja) * 2005-02-28 2006-09-14 Sanyo Electric Co Ltd 冷媒サイクル装置
JP4630772B2 (ja) 2005-09-05 2011-02-09 カルソニックカンセイ株式会社 車両用空調装置
JP2011005982A (ja) * 2009-06-26 2011-01-13 Denso Corp 車両用空調装置
JP5446524B2 (ja) * 2009-07-08 2014-03-19 株式会社デンソー 車両用空調装置
JP5663849B2 (ja) * 2009-07-09 2015-02-04 株式会社デンソー 車両用空調装置
US9925877B2 (en) * 2011-01-21 2018-03-27 Sanden Holdings Corporation Vehicle air conditioning apparatus
JP5929372B2 (ja) * 2011-04-04 2016-06-08 株式会社デンソー 冷凍サイクル装置
US9902235B2 (en) * 2011-09-06 2018-02-27 Valeo Japan Co., Ltd. Vehicle air-conditioning apparatus
JP5984544B2 (ja) 2011-12-08 2016-09-06 サンデンホールディングス株式会社 車両用空気調和装置
WO2013084738A1 (ja) * 2011-12-09 2013-06-13 サンデン株式会社 車両用空気調和装置
JP5944154B2 (ja) * 2011-12-09 2016-07-05 サンデンホールディングス株式会社 車両用空気調和装置
JP6141744B2 (ja) * 2012-11-16 2017-06-07 株式会社デンソー 冷凍サイクル装置
JP5949648B2 (ja) * 2013-04-18 2016-07-13 株式会社デンソー 冷凍サイクル装置
JP6189098B2 (ja) * 2013-06-14 2017-08-30 三菱重工オートモーティブサーマルシステムズ株式会社 ヒートポンプ式車両用空調システム
JP6204111B2 (ja) * 2013-08-09 2017-09-27 株式会社日本クライメイトシステムズ 車両用空調装置
JP6209391B2 (ja) * 2013-08-09 2017-10-04 株式会社日本クライメイトシステムズ 車両用空調装置
JP6223753B2 (ja) * 2013-09-04 2017-11-01 サンデンホールディングス株式会社 車両用空気調和装置
JP6332193B2 (ja) * 2015-08-06 2018-05-30 株式会社デンソー 車両用空調装置
JP6710061B2 (ja) * 2016-02-26 2020-06-17 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置
JP6528733B2 (ja) * 2016-06-21 2019-06-12 株式会社デンソー エジェクタ式冷凍サイクル
JP2018091536A (ja) * 2016-12-01 2018-06-14 株式会社デンソー 冷凍サイクル装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1606512A (zh) * 2001-12-19 2005-04-13 辛文特公司 用于交通工具的供热和制冷的蒸汽压缩系统
US20030182961A1 (en) * 2002-04-02 2003-10-02 Shin Nishida Vehicle air conditioner with heat pump refrigerant cycle
CN1828190A (zh) * 2005-02-28 2006-09-06 三洋电机株式会社 冷媒循环装置
CN102563943A (zh) * 2010-10-07 2012-07-11 威斯通全球技术公司 汽车空调设备的制冷剂循环回路
US20120255319A1 (en) * 2011-04-04 2012-10-11 Denso Corporation Refrigerant cycle device
US20140075972A1 (en) * 2012-09-17 2014-03-20 Visteon Global Technologies, Inc. Air conditioning system for a motor vehicle

Also Published As

Publication number Publication date
US10493818B2 (en) 2019-12-03
JP2016011760A (ja) 2016-01-21
WO2015198559A1 (ja) 2015-12-30
CN106537065A (zh) 2017-03-22
DE112015003005T5 (de) 2017-03-16
US20170151856A1 (en) 2017-06-01
JP6277888B2 (ja) 2018-02-14

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