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:
Aug. 31, 2010
Filed:
Feb. 27, 2007
Masahisa Otake, Gunma, JP;
Koji Sato, Gunma, JP;
Masahisa Otake, Gunma, JP;
Koji Sato, Gunma, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An object of the present invention is to provide a cooling heating device in which a suitable operation can be performed in harmony with fluctuations of cooling and heating loads to reduce energy consumption, and the cooling heating device includes an outdoor heat exchanger having one end connected to a refrigerant outlet-side pipe of a condenser via an expansion valve and having the other end connected to a suction-side pipe and a discharge-side pipe of a compressor and configured to perform heat exchange between a refrigerant and outside air; a changeover valve which executes control so as to pass the refrigerant discharged from the compressor through the condenser or the outdoor heat exchanger and supply the refrigerant from the outdoor heat exchanger to the compressor or supply the refrigerant from the evaporator to the compressor; and a control unit which controls the compressor, the expansion valve and the changeover valve based on a cooling operation signal in response to a cooling load of the cool target and a heating operation signal in response to a heating load of the heat target.