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.
Patent No.:
Date of Patent:
Mar. 05, 2019
Filed:
Nov. 23, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Mamoru Hamada, Tokyo, JP;
Fumitake Unezaki, Tokyo, JP;
Akira Morikawa, Tokyo, JP;
Satoshi Ueyama, Tokyo, JP;
Koji Yamashita, Tokyo, JP;
Hiroyuki Morimoto, Tokyo, JP;
Yuji Motomura, Tokyo, JP;
Tetsuya Yamashita, Tokyo, JP;
Yusuke Otsubo, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided are a refrigeration cycle that is formed by connecting a compressor, a condenser, expansion means, and an evaporator and that performs cooling operation; an evaporator heating device that heats the evaporator; a drain pan that receives drain-water from the evaporator and drains the drain-water; a drain-pan heating device that heats the drain pan; frost detecting means including a light-emitting element that emits light to the evaporator and a light-receiving element that receives reflected light from the evaporator and outputs a voltage according to the reflected light; and a control device that controls on-off operation of the evaporator heating device and the drain-pan heating device. The control device determines a frosting condition on the evaporator from an output of the frost detecting means and individually controls the evaporator heating device and the drain-pan heating device in accordance with the determination result.