Title:
REFRIGERATOR AND CONTROLLING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/105717
Kind Code:
A2
Abstract:
The refrigerator of the present invention comprises: a refrigeration cycle composed of a compressor, a condenser and an expansion unit; an evaporator for evaporating a refrigerant which passes through the expansion unit; a heating unit for providing the heat for defrosting the evaporator; and a frost sensor unit which is provided at one side of the evaporator for sensing the amount of frost on the evaporator, and is characterized in that an operation of the frost sensor unit is started on the basis of whether operation conditions of the frost sensor unit are recognized and the heating unit selectively generates the heat according to the sensed result of the frost sensor unit. According to one embodiment of the present invention, the amount of frost on the evaporator is easily determined by the operation of the frost sensor unit and the evaporator is effectively defrosted according to the amount of frost determined thereby.
Inventors:
EOM, Yonghwan (LG Electronics Inc. IP Group, 327-23 Gasandong Geumcheon-gu, Seoul 153-802, 153-802, KR)
엄용환 (서울 금천구 가산동 327-23 LG전자 DA특허그룹, 153-802 Seoul, 153-802, KR)
LEE, Hoyoun (LG Electronics Inc. IP Group, 327-23 Gasandong Geumcheon-gu, Seoul 153-802, 153-802, KR)
엄용환 (서울 금천구 가산동 327-23 LG전자 DA특허그룹, 153-802 Seoul, 153-802, KR)
LEE, Hoyoun (LG Electronics Inc. IP Group, 327-23 Gasandong Geumcheon-gu, Seoul 153-802, 153-802, KR)
Application Number:
KR2011/001046
Publication Date:
September 01, 2011
Filing Date:
February 17, 2011
Export Citation:
Assignee:
LG ELECTRONICS INC. (20 Yeouido-dong, Yeongdeungpo-gu, Seoul 150-721, 150-721, KR)
엘지전자 주식회사 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
EOM, Yonghwan (LG Electronics Inc. IP Group, 327-23 Gasandong Geumcheon-gu, Seoul 153-802, 153-802, KR)
엄용환 (서울 금천구 가산동 327-23 LG전자 DA특허그룹, 153-802 Seoul, 153-802, KR)
엘지전자 주식회사 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
EOM, Yonghwan (LG Electronics Inc. IP Group, 327-23 Gasandong Geumcheon-gu, Seoul 153-802, 153-802, KR)
엄용환 (서울 금천구 가산동 327-23 LG전자 DA특허그룹, 153-802 Seoul, 153-802, KR)
International Classes:
F25D21/02; F25D21/08; F25D29/00
Attorney, Agent or Firm:
HAW, Yong-Noke (6th Fl. Hyun Juk Bldg, 832-41 Yeoksam-dong, Gangnam-gu, Seoul 135-080, 135-080, KR)
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Claims:
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