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:
Mar. 24, 2009
Filed:
Aug. 30, 2005
Tomotsugu Sugiyama, Kyoto, JP;
Akira Saiga, Kyoto, JP;
Makoto Fujihara, Kyoto, JP;
Yuji Yabuuchi, Kyoto, JP;
Tomotsugu Sugiyama, Kyoto, JP;
Akira Saiga, Kyoto, JP;
Makoto Fujihara, Kyoto, JP;
Yuji Yabuuchi, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
In a brushless motor of the present invention, by disposing an electronic circuit board and a rotary magnet close to each other, detection precision of a magnetic pole of a Hall IC is enhanced, and a motor can be reduced in thickness. The electronic circuit boardis provided with an opening holeand a notch portionprovided on an outer peripheral side of the opening hole. A lower insulatorof a statoris provided with a positioning surfacewith respect to the electronic circuit boardand an arc projection piece. Portions of coil winding portions of teeth of the statorare fitted into the electronic circuit board, a surface of the electronic circuit boardis brought into positioning against an positioning surfaceof the lower insulator, and the notch portionof the electronic circuit boardand the arc projection pieceof the lower insulatorare engaged with each other.