Title:
REFRIGERATOR
Document Type and Number:
WIPO Patent Application WO/2019/107066
Kind Code:
A1
Abstract:
The present invention has: a flow channel switching valve (40) connected to a downstream side of a main condenser (21); a dew-proofing pipe (41) connected to a downstream side of the flow channel switching valve (40); and a bypass passage (43) connected in parallel to the dew-proofing pipe (41). When an evaporator (20) is defrosted, residual refrigerant in the evaporator (20) and the dew-proofing pipe (41) is collected through an operation of closing a freezing chamber damper, by fully closing the flow channel switching valve (40) and opening a refrigeration chamber damper at the same time during the operations of a compressor (19) and an evaporator fan (30). Thereafter, the collectged high-pressure refrigerant is supplied to the evaporator (20) by stopping the compressor (19) and opening the flow channel switching valve (40) toward the bypass passage (43). After a predetermined period of time, a defrosting heater is electrically energized.
Inventors:
HORIO YOSHIMASA
SAKAI HISAKAZU
HORII KATSUNORI
TAKAMI FUMINORI
SAKAI HISAKAZU
HORII KATSUNORI
TAKAMI FUMINORI
Application Number:
PCT/JP2018/040791
Publication Date:
June 06, 2019
Filing Date:
November 02, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F25D11/00; F25B1/00; F25B47/02; F25D21/04; F25D21/06; F25D21/08
Domestic Patent References:
| WO2017179500A1 | 2017-10-19 | |||
| WO2012157263A1 | 2012-11-22 |
Foreign References:
| JP2017026236A | 2017-02-02 | |||
| JPH09329386A | 1997-12-22 | |||
| JP2003083667A | 2003-03-19 | |||
| JP2003322454A | 2003-11-14 | |||
| JPS63169457A | 1988-07-13 | |||
| KR20170029346A | 2017-03-15 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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