Invention Grant
- Patent Title: Outer rotor-type brushless motor
- Patent Title (中): 外转子式无刷电机
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Application No.: US13739160Application Date: 2013-01-11
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Publication No.: US09118222B2Publication Date: 2015-08-25
- Inventor: Fumihiro Okamura
- Applicant: Shinano Kenshi Kabushiki Kaisha
- Applicant Address: JP Ueda-shi
- Assignee: SHINANO KENSHI KABUSHIKI KAISHA
- Current Assignee: SHINANO KENSHI KABUSHIKI KAISHA
- Current Assignee Address: JP Ueda-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-039006 20120224
- Main IPC: H02K7/00
- IPC: H02K7/00 ; H02K7/08 ; H02K1/27 ; H02K5/16

Abstract:
The outer rotor-type blushless motor comprises: a stator including a cylindrical housing, a stator core having stator pole teeth and a bearing coaxially incorporated in a cylindrical hole of the hosing; and a rotor including a rotor yoke, a rotor hub provided to the rotor yoke and a rotor shaft rotatably supported by the bearing. A first resin washer, through which the rotor shaft is pierced and which contacts an end face of the rotor hub, and a second resin washer, which contacts an end face of the bearing incorporated in a center hole of the stator core, contact each other. The second resin washer has an elastic projected section fitted in a concave section formed in the center hole of the stator core.
Public/Granted literature
- US20130221783A1 OUTER ROTOR-TYPE BRUSHLESS MOTOR Public/Granted day:2013-08-29
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