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. 22, 2009
Filed:
Jan. 30, 2008
Tsuyoshi Sasagawa, Odawara, JP;
Hirokazu Takahashi, Chigasaki, JP;
Takahiko Iwasaki, Nakai, JP;
Taro Takahashi, Manazuru, JP;
Chikazu Yokoi, Odawara, JP;
Tsuyoshi Sasagawa, Odawara, JP;
Hirokazu Takahashi, Chigasaki, JP;
Takahiko Iwasaki, Nakai, JP;
Taro Takahashi, Manazuru, JP;
Chikazu Yokoi, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In the disk array system, in the basic chassis, HDD modules are installed from a front surface in a front part of a backboard, and duplex CTL modules are installed up and down from a rear surface in a rear part, and duplex power source modules containing fans are installed in the left and right sides thereof. By the operation of the fans, in the rear part, the cooling air flows separately into each CTL module and into each power source module, and the cooling air having passed through the area of the duct by a block in the CTL module is drawn by the fans in the power source module through a ventilation hole and is then exhausted outside. The cooling air flow path to the plurality of ICs is divided by the block. The rotation speed of the fans is controlled by using a temperature sensor.