Invention Grant
US08350439B2 Brushless DC motor of outer rotor type and electronic device using the same
有权
外转子式无刷直流电动机及使用其的电子装置
- Patent Title: Brushless DC motor of outer rotor type and electronic device using the same
- Patent Title (中): 外转子式无刷直流电动机及使用其的电子装置
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Application No.: US12681962Application Date: 2008-10-08
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Publication No.: US08350439B2Publication Date: 2013-01-08
- Inventor: Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Koji Kadowaki , Haruki Kato , Yasuo Kunishige
- Applicant: Yuichi Yoshikawa , Hiroshi Murakami , Atsuyoshi Koshiba , Koji Kadowaki , Haruki Kato , Yasuo Kunishige
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2007-263097 20071009
- International Application: PCT/JP2008/002836 WO 20081008
- International Announcement: WO2009/047895 WO 20090416
- Main IPC: H02K1/14
- IPC: H02K1/14 ; H02K1/12 ; H02K1/16

Abstract:
This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.
Public/Granted literature
- US20100237752A1 MOTOR AND ELECTRONIC DEVICE USING THE SAME Public/Granted day:2010-09-23
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