Invention Grant
- Patent Title: Electric motor and manufacturing method for electric motor
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Application No.: US16061785Application Date: 2017-07-18
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Publication No.: US10250113B2Publication Date: 2019-04-02
- Inventor: Kazunori Koizumi , Hayao Watanabe
- Applicant: NSK Ltd.
- Applicant Address: JP Tokyo
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2016-143926 20160722
- International Application: PCT/JP2017/025988 WO 20170718
- International Announcement: WO2018/016495 WO 20180125
- Main IPC: H02K1/06
- IPC: H02K1/06 ; H02K21/16 ; H02K1/27 ; H02K1/16

Abstract:
An electric motor includes: a rotor having a rotor yoke and a magnet; and a stator formed by stacking, in a rotation axis direction of the rotor, a plurality of electromagnetic steel sheet layers in each of which a plurality of electromagnetic steel sheets each having two teeth is annularly arranged. A core of a coil provided in the stator is formed of the teeth stacked in the rotation axis direction, there are two types of phases for arrangement of a plurality of electromagnetic steel sheets in one electromagnetic steel sheet layer, and the stator includes the electromagnetic steel sheet layers having the two types of phases.
Public/Granted literature
- US20180367018A1 ELECTRIC MOTOR AND MANUFACTURING METHOD FOR ELECTRIC MOTOR Public/Granted day:2018-12-20
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