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:
Dec. 03, 2019

Filed:

Feb. 07, 2018
Applicant:

Panasonic Corporation, Osaka, JP;

Inventors:

Fuminori Takami, Osaka, JP;

Hisakazu Sakai, Shiga, JP;

Katsunori Horii, Shiga, JP;

Yoshimasa Horio, Shiga, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 21/04 (2006.01); F25D 17/06 (2006.01); F25B 41/04 (2006.01); F25B 41/06 (2006.01); F25B 47/02 (2006.01); F25D 21/08 (2006.01);
U.S. Cl.
CPC ...
F25D 21/04 (2013.01); F25B 41/04 (2013.01); F25B 41/067 (2013.01); F25B 47/022 (2013.01); F25D 17/067 (2013.01); F25B 2341/0661 (2013.01); F25B 2400/05 (2013.01); F25B 2600/0251 (2013.01); F25B 2600/2507 (2013.01); F25B 2700/02 (2013.01); F25D 21/08 (2013.01); F25D 2321/146 (2013.01); F25D 2321/1413 (2013.01); F25D 2700/10 (2013.01);
Abstract

A refrigerator includes: a compressor; an evaporator; a main condenser; a dew-prevention pipe; a bypass provided in parallel with a first channel from the main condenser to the dew-prevention pipe, and connected with the evaporator; a switching section provided on a downstream side of the main condenser, in which the switching section opens and closes the first channel, and a second channel from the main condenser to the bypass; and a control section. When defrosting the evaporator, the control section operates in such a manner that a refrigerant staying in the evaporator, the dew-prevention pipe, and the bypass is collected in the main condenser by closing the first channel and the second channel during an operation of the compressor, and thereafter, a high-pressure refrigerant collected in the main condenser is supplied to the evaporator through the bypass by stopping the compressor and opening the second channel.


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