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:
Sep. 04, 2001
Filed:
Nov. 29, 1999
Michihito Watarai, Isehara, JP;
Yutaka Hayashi, Hadano, JP;
Mitsuo Miyamoto, Hadano, JP;
Kazuhiro Matsuo, Hadano, JP;
Eiji Kadomoto, Hadano, JP;
Koji Nakayama, Minamiashigara, JP;
Akihiro Sakurai, Hadano, JP;
Shigeyasu Tsubaki, Hadano, JP;
Other;
Abstract
An electronic device has a frame and a back board having plural logical units and power supply units mounted thereon. The logical units and the power supply units are alternately located on both sides of the back board in the center of the frame so that the power supply units mounted on one side of the back board may feed a power to the closest logical units mounted on the other side. Further, the air flow paths to be circulated through the logical units and the power supply units are formed so that each unit may be efficiently cooled by the air fed by an air fan unit. As a result, the feeding voltage becomes uniform and the cooling efficiency is improved.