JPH0387576A - Air conditioner - Google Patents

Air conditioner

Info

Publication number
JPH0387576A
JPH0387576A JP1224226A JP22422689A JPH0387576A JP H0387576 A JPH0387576 A JP H0387576A JP 1224226 A JP1224226 A JP 1224226A JP 22422689 A JP22422689 A JP 22422689A JP H0387576 A JPH0387576 A JP H0387576A
Authority
JP
Japan
Prior art keywords
refrigerant
heat exchanger
represented
condition
defrosting
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.)
Pending
Application number
JP1224226A
Other languages
Japanese (ja)
Inventor
Kenji Matsuda
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1224226A priority Critical patent/JPH0387576A/en
Publication of JPH0387576A publication Critical patent/JPH0387576A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce a defrosting operation time by arranging a bypass refrigerant circuit between the outlet side of an indoor side heat exchanger and the inlet side of an outdoor side heat exchanger, accumulating heat with first and second solenoid valves opened and closed and defrosting with the first and second solenoid valves closed and opened, respectively.
CONSTITUTION: When first and second solenoid valves 23 and 25 are set to be opened and closed, respectively, in a bypass refrigerant circuit 26, a refrigerant which has passed an indoor side heat exchanger 3 is accumulated in a heat accumulator 24 via the first solenoid valve 23 and a suction tube 27 in the same condition as that of the refrigerant outputted from the indoor side heat exchanger 3. That is, the refrigerant is accumulated at a point A in the condition of a liquid phase refrigerant. The liquid refrigerant at the point A moves on an isotherm represented by a dashed line to be changed to a condition represented in a point B. At this time, a refrigerant gas 1a discharged in a refrigerant circuit and a circuit condition as represented by a full line in a room heating operation is changed to that as represented by a dotted line in a defrosting, operation, a refrigerant gas pressure in a low pressure refrigerant circuit portion being raised. As a result, a low pressure at a temperature below 0°C is increased to the pressure at a temperature above 0°C and frost attached to an outdoor heat exchanger 5 is molten to be removed.
COPYRIGHT: (C)1991,JPO&Japio
JP1224226A 1989-08-30 1989-08-30 Air conditioner Pending JPH0387576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1224226A JPH0387576A (en) 1989-08-30 1989-08-30 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1224226A JPH0387576A (en) 1989-08-30 1989-08-30 Air conditioner

Publications (1)

Publication Number Publication Date
JPH0387576A true JPH0387576A (en) 1991-04-12

Family

ID=16810481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1224226A Pending JPH0387576A (en) 1989-08-30 1989-08-30 Air conditioner

Country Status (1)

Country Link
JP (1) JPH0387576A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014505230A (en) * 2011-02-11 2014-02-27 フリジェスコ リミテッド Flash (frost) defrost system
CN104422193A (en) * 2013-09-05 2015-03-18 珠海格力电器股份有限公司 Refrigeration and heating liquid accumulation methods, refrigeration and heating frost prevention methods and air conditioning system
WO2016170616A1 (en) * 2015-04-22 2016-10-27 三菱電機株式会社 Air conditioner
CN108731294A (en) * 2018-06-06 2018-11-02 青岛海尔空调电子有限公司 Multi-gang air-conditioner and its control method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014505230A (en) * 2011-02-11 2014-02-27 フリジェスコ リミテッド Flash (frost) defrost system
CN104422193A (en) * 2013-09-05 2015-03-18 珠海格力电器股份有限公司 Refrigeration and heating liquid accumulation methods, refrigeration and heating frost prevention methods and air conditioning system
WO2016170616A1 (en) * 2015-04-22 2016-10-27 三菱電機株式会社 Air conditioner
JPWO2016170616A1 (en) * 2015-04-22 2017-11-02 三菱電機株式会社 Air conditioner
CN108731294A (en) * 2018-06-06 2018-11-02 青岛海尔空调电子有限公司 Multi-gang air-conditioner and its control method
WO2019232943A1 (en) * 2018-06-06 2019-12-12 青岛海尔空调电子有限公司 Multiple-unit air conditioner and control method therefor

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