WO2008084742A1 - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
WO2008084742A1
WO2008084742A1 PCT/JP2007/075290 JP2007075290W WO2008084742A1 WO 2008084742 A1 WO2008084742 A1 WO 2008084742A1 JP 2007075290 W JP2007075290 W JP 2007075290W WO 2008084742 A1 WO2008084742 A1 WO 2008084742A1
Authority
WO
WIPO (PCT)
Prior art keywords
air conditioner
conditions
heat exchanger
outdoor heat
defrosting operation
Prior art date
Application number
PCT/JP2007/075290
Other languages
French (fr)
Japanese (ja)
Inventor
Tomoatsu Minamida
Hidehiko Kataoka
Yasuo Mizuguchi
Original Assignee
Daikin Industries, Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO2008084742A1 publication Critical patent/WO2008084742A1/en

Links

Classifications

    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air conditioner in which problems caused by freezing in its outdoor heat exchanger are solved. The air conditioner has preset defrosting operation start conditions corresponding to conditions where the amount of frost in the outdoor heat exchanger has increased to a predetermined amount, and the air conditioner also has preset defrosting operation start conditions corresponding to conditions where frosting has occurred in the outdoor heat exchanger. When either of the sets of preset conditions is satisfied, heating operation is switched to defrosting operation.
PCT/JP2007/075290 2007-01-11 2007-12-28 Air conditioner WO2008084742A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-003489 2007-01-11
JP2007003489A JP2008170064A (en) 2007-01-11 2007-01-11 Air conditioner

Publications (1)

Publication Number Publication Date
WO2008084742A1 true WO2008084742A1 (en) 2008-07-17

Family

ID=39608636

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/075290 WO2008084742A1 (en) 2007-01-11 2007-12-28 Air conditioner

Country Status (2)

Country Link
JP (1) JP2008170064A (en)
WO (1) WO2008084742A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109210698A (en) * 2018-09-10 2019-01-15 青岛海尔空调器有限总公司 A kind of control method of air-conditioning freeze protection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5367633B2 (en) * 2010-04-15 2013-12-11 株式会社コロナ Geothermal heat pump device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60233436A (en) * 1984-05-04 1985-11-20 Matsushita Seiko Co Ltd Controller for defrosting of heat pump type air conditioner
JPS613937A (en) * 1984-06-18 1986-01-09 Matsushita Refrig Co Defrosting control device
JPH03156268A (en) * 1989-11-14 1991-07-04 Fujitsu General Ltd Air conditioner
JPH10103818A (en) * 1996-08-08 1998-04-24 Hitachi Ltd Air-conditioner
JPH1183117A (en) * 1997-09-10 1999-03-26 Daikin Ind Ltd Air conditioner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0157021B1 (en) * 1996-01-29 1999-01-15 구자홍 Defrosting method of an airconditioner
JP3596218B2 (en) * 1997-02-28 2004-12-02 株式会社トヨトミ Defrosting structure of outdoor unit of air conditioner
JP2000313224A (en) * 1999-04-28 2000-11-14 Denso Corp Air conditioner for vehicle
JP2006317038A (en) * 2005-05-11 2006-11-24 Matsushita Electric Ind Co Ltd Heat pump type water heater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60233436A (en) * 1984-05-04 1985-11-20 Matsushita Seiko Co Ltd Controller for defrosting of heat pump type air conditioner
JPS613937A (en) * 1984-06-18 1986-01-09 Matsushita Refrig Co Defrosting control device
JPH03156268A (en) * 1989-11-14 1991-07-04 Fujitsu General Ltd Air conditioner
JPH10103818A (en) * 1996-08-08 1998-04-24 Hitachi Ltd Air-conditioner
JPH1183117A (en) * 1997-09-10 1999-03-26 Daikin Ind Ltd Air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109210698A (en) * 2018-09-10 2019-01-15 青岛海尔空调器有限总公司 A kind of control method of air-conditioning freeze protection

Also Published As

Publication number Publication date
JP2008170064A (en) 2008-07-24

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