Invention Grant
- Patent Title: Electric motor and electric device equipped with same
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Application No.: US15027689Application Date: 2014-10-16
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Publication No.: US09966813B2Publication Date: 2018-05-08
- Inventor: Keisaku Nakano , Yoshinori Isomura , Tomoko Yorino , Seiji Kurozumi
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2013-218079 20131021
- International Application: PCT/JP2014/005249 WO 20141016
- International Announcement: WO2015/059905 WO 20150430
- Main IPC: H02K11/00
- IPC: H02K11/00 ; H02K5/173 ; H02K11/33 ; H02K11/40

Abstract:
Electric motor includes stator, rotor, a pair of bearings, outer-ring conducting part, and printed circuit board. Outer-ring conducting part electrically couples outer rings to each other that are included respectively in the pair of bearings. Printed circuit board includes drive circuit and an impedance element. Drive circuit includes ground line. Drive circuit controls an electric current that flows through stator winding. The impedance element is formed with at least not smaller than one pair of conductive patterns. One of the conductive patterns forming the impedance element is electrically coupled with outer-ring conducting part. The other of the conductive patterns forming the impedance element is electrically coupled with ground line included in drive circuit.
Public/Granted literature
- US20160248296A1 ELECTRIC MOTOR AND ELECTRIC DEVICE EQUIPPED WITH SAME Public/Granted day:2016-08-25
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