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:
Nov. 23, 2010
Filed:
Sep. 19, 2008
Toshiharu Hashimoto, Nagoya, JP;
Hiroki Inoue, Hikone, JP;
Hidekazu Yabuuchi, Hikone, JP;
Masaaki Nishikata, Fukuoka, JP;
Shinji Suematsu, Fukuoka, JP;
Toshiharu Hashimoto, Nagoya, JP;
Hiroki Inoue, Hikone, JP;
Hidekazu Yabuuchi, Hikone, JP;
Masaaki Nishikata, Fukuoka, JP;
Shinji Suematsu, Fukuoka, JP;
Panasonic Electric Works Co., Ltd., Osaka, JP;
Abstract
A claw pole type motor includes a rotor having a magnet arranged on an outer circumferential surface thereof and a stator including an annular iron core and an annular coil received within the iron core. The iron core includes a yoke portion opened in an inner circumferential surface opposite to the rotor, a plurality of upper claw-shaped magnetic poles and a plurality of lower claw-shaped magnetic poles which are arranged along an inner circumferential surface of the annular coil. The upper/lower claw-shaped magnetic poles are curved to extend axially downwardly/upwardly from an upper/lower inner edge of the yoke portion, respectively. The upper and the low claw-shaped magnetic poles are alternately arranged along a circumferential direction of the iron core. The yoke portion has cutout portions formed in non-magnetic path regions which do not include magnetic paths through which magnetic flux flows between neighboring claw-shaped magnetic poles across the annular coil.