Title:
REFRIGERATOR AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/071767
Kind Code:
A1
Abstract:
A refrigerator of the present invention comprises: a storage chamber which stores food; a cold air supply means which supplies cold air to the storage chamber; a first tray which forms a part of an ice making cell that is a space where water is phase-changed into ice by the cold air; a second tray which forms another part of the ice making cell may come into contact with the first tray during an ice making process, and may be separated from the first tray during an ice transfer process; a heater which is positioned adjacent to at least one of the first tray and the second tray; a sensor which determines the position of the second tray in a movement process of the second tray; and a control unit which controls the heater. Once a second signal is output from the sensor at the point of time when an initialization operation of the second tray starts, the control unit controls the second tray so that the second tray moves in the reverse direction for A seconds and then moves in the forward direction for B seconds. Once a first signal is output from the sensor after the second tray moves in the forward direction for B seconds, the control unit controls the second tray so that the second tray moves in the forward direction until an output changes to the second signal in the sensor. At the point of time when the output of the sensor changes to the second signal, the control unit recognizes, as a water supply position, a place where the second tray is positioned.
Inventors:
LEE DONGHOON (KR)
LEE WOOKYONG (KR)
YEOM SEUNGSEOB (KR)
LEE DONGHOON (KR)
BAE YONGJUN (KR)
SON SUNGGYUN (KR)
PARK CHONGYOUNG (KR)
LEE WOOKYONG (KR)
YEOM SEUNGSEOB (KR)
LEE DONGHOON (KR)
BAE YONGJUN (KR)
SON SUNGGYUN (KR)
PARK CHONGYOUNG (KR)
Application Number:
PCT/KR2019/012880
Publication Date:
April 09, 2020
Filing Date:
October 01, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
F25D11/00; F25C1/18; F25C1/24; F25C5/08; F25D25/02; F25D29/00
Foreign References:
| KR101850918B1 | 2018-05-30 | |||
| KR20050063871A | 2005-06-29 | |||
| KR20070119271A | 2007-12-20 | |||
| JP2013032878A | 2013-02-14 | |||
| US9151527B2 | 2015-10-06 | |||
| JPH09269172A | 1997-10-14 |
Other References:
See also references of EP 3862667A4
Attorney, Agent or Firm:
HAW, Yong Noke (KR)
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