Invention Grant
- Patent Title: Motor and electronic apparatus using the same
- Patent Title (中): 电机和电子设备使用相同
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Application No.: US13005803Application Date: 2011-01-13
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Publication No.: US08405276B2Publication Date: 2013-03-26
- Inventor: Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Yasuhiro Inoue , Koji Kadowaki , Yasuo Kunishige
- Applicant: Hiroaki Kawasaki , Yuichi Yoshikawa , Atsuyoshi Koshiba , Yasuhiro Inoue , Koji Kadowaki , Yasuo Kunishige
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2010-007714 20100118
- Main IPC: H02K1/06
- IPC: H02K1/06

Abstract:
The motor comprises a stator, a rotor, and magnets. The stator has a plurality of magnetic poles circumferentially arranged at first spaced intervals. The rotor is rotatably arranged in a position opposing to the stator. The magnets are arranged at second spaced intervals circumferentially on a surface of the rotor. The stator is formed by laminating plate materials, and a plurality of laminated plate materials at least including outermost layers of a laminated body thereof are bent in a direction substantially parallel to the magnet in order to form extended portions. And, when a magnet opposed area of pole tip portion being closest to a magnet including the extended portion is S, and a sectional area of magnetic pole is A, then area ratio (S/A) fulfills the relation of 4.8>(S/A).
Public/Granted literature
- US20110175497A1 MOTOR AND ELECTRONIC APPARATUS USING THE SAME Public/Granted day:2011-07-21
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