Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/111479
Kind Code:
A1
Abstract:
An air conditioner comprises: an outdoor heat exchanger in which N heat exchange units are sequentially spaced in the up and down direction, a first heat exchange unit is located at the uppermost position, an Nth heat exchange unit is located at the lowermost position, and at least one heat exchange unit is located between the first heat exchange unit and the Nth heat exchange unit; N expansion valves which are respectively connected to the N heat exchange units; N hot gas pipes respectively connected to the N heat exchange units, and N hot gas valves respectively mounted on the N hot gas pipes; and a controller which controls the N expansion valves and the N hot gas valves to perform divisional defrost of the N heat exchange units, wherein the controller firstly defrosts the Nth heat exchange unit then defrosts the first heat exchange unit, and then sequentially defrosts the heat exchange units, located blow the first heat exchange unit, from a second heat exchange unit to the Nth heat exchange unit after defrosting the first heat exchange unit.
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Inventors:
LEE JAEWON (KR)
PARK JINHYOUNG (KR)
SHIN YOUNGJOO (KR)
CHOI WOOJOO (KR)
PARK JINHYOUNG (KR)
SHIN YOUNGJOO (KR)
CHOI WOOJOO (KR)
Application Number:
PCT/KR2019/012425
Publication Date:
June 04, 2020
Filing Date:
September 24, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F25B47/02; F24F11/42; F25B6/02
Foreign References:
| KR20130032681A | 2013-04-02 | |||
| KR20120114997A | 2012-10-17 | |||
| JP2013011364A | 2013-01-17 | |||
| JP2016031182A | 2016-03-07 | |||
| KR101401909B1 | 2014-05-29 |
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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