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:
Jan. 10, 2023
Filed:
Jun. 25, 2020
Daikin Industries, Ltd., Osaka, JP;
Mitsushi Itano, Osaka, JP;
Daisuke Karube, Osaka, JP;
Yuuki Yotsumoto, Osaka, JP;
Kazuhiro Takahashi, Osaka, JP;
Tatsuya Takakuwa, Osaka, JP;
Yuzo Komatsu, Osaka, JP;
Shun Ohkubo, Osaka, JP;
Tetsushi Tsuda, Osaka, JP;
Yumi Toda, Osaka, JP;
Takeo Abe, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
A heat exchange unit is provided with which, even if a flammable refrigerant is used, the likelihood of the refrigerant reaching an electric component unit is reduced. An outdoor unit () constitutes a portion of an air-conditioning apparatus (), and is connected to an indoor unit () via a liquid-side refrigerant connection pipe () and a gas-side refrigerant connection pipe (). The outdoor unit () includes an outdoor housing (), an outdoor heat exchanger () disposed inside the outdoor housing () and in which a refrigerant flows, a liquid-side shutoff valve () connected to the liquid-side refrigerant connection pipe (), a gas-side shutoff valve () connected to the gas-side refrigerant connection pipe (), and an outdoor electric component unit () disposed inside the outdoor housing (). The refrigerant is a flammable refrigerant containing at least 1,2-difluoroethylene. When the outdoor unit () is in its installed state, the lower end of the outdoor electric component unit () is positioned above the liquid-side shutoff valve () and the gas-side shutoff valve ().