The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 20, 2010

Filed:

May. 02, 2007
Applicants:

Sung-hee Kang, Changwon-Shi, KR;

Deok-hyun Youn, Anyang-Shi, KR;

Su-won Lee, Changwon-Shi, KR;

Jong-min Shin, Busan, KR;

Jung-wook Bae, Jinhae-Shi, KR;

Inventors:

Sung-Hee Kang, Changwon-Shi, KR;

Deok-Hyun Youn, Anyang-Shi, KR;

Su-Won Lee, Changwon-Shi, KR;

Jong-Min Shin, Busan, KR;

Jung-Wook Bae, Jinhae-Shi, KR;

Assignee:

LG Electronics Inc., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention discloses a defrost operating method for a refrigerator which performs a defrost operation by controlling operations of a compressor and a fan on the basis of a continuous operation time of the compressor and surface temperatures of evaporators to prevent frost from being formed on the evaporators, when cool air is generated in a freezing chamber and a refrigerating chamber by circulating refrigerants through a refrigeration cycle built in a refrigerator main body and forcibly circulated bX rotating the fan. The defrost operating method for the refrigerator can omit a general defrosting heater by performing the defrost operation by using the compressor and the fan. In addition, the defrost operating method for the refrigerator improves heat exchange efficiency and reduces power consumption by efficiently performing the defrost operation.


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