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:
Jun. 28, 2011
Filed:
Feb. 20, 2007
Hiroyoshi Teshima, Kyoto, JP;
Kazumi Takeshita, Kyoto, JP;
Hideki Nagamatsu, Kyoto, JP;
Hideaki Konishi, Kusatsu, JP;
Tsukasa Takaoka, Kyoto, JP;
Kiyoto Ida, Kyoto, JP;
Hiroyoshi Teshima, Kyoto, JP;
Kazumi Takeshita, Kyoto, JP;
Hideki Nagamatsu, Kyoto, JP;
Hideaki Konishi, Kusatsu, JP;
Tsukasa Takaoka, Kyoto, JP;
Kiyoto Ida, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
An arrangement of a low air inlet and a circuit for driving a torque generator in an ultra-compact centrifugal fan is disclosed. In the ultra-compact centrifugal fan, a region occupied by the circuit is not completely arranged radially inside a cup-shaped portion to which an impeller is attached. At least a part of the low air inlet provided on a bottom of a housing of the centrifugal fan is arranged in a range of predetermined angle in an imaginary ring-shaped portion surrounding a base portion covered by the cup-shaped portion. A part of the circuit, that is not covered by the cup-shaped portion, is arranged upstream of the range of the predetermined angle in a flowing direction of airflow.