Invention Grant
- Patent Title: Motor and manufacturing method of motor
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Application No.: US15770245Application Date: 2016-11-22
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Publication No.: US10658885B2Publication Date: 2020-05-19
- Inventor: Tomoya Ueda , Hiroshi Kitagaki , Takeshi Honda
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@15a36fbe
- International Application: PCT/JP2016/084519 WO 20161122
- International Announcement: WO2017/090571 WO 20170601
- Main IPC: H02K1/18
- IPC: H02K1/18 ; H02K1/14 ; H02K29/03 ; H02K15/02 ; H02K1/27

Abstract:
A motor includes a rotor that rotates centered on a central axis extending in an axial direction, and a stator. The stator includes a stator iron core in which a plurality of laminated iron cores each including a tooth portion extending in a radial direction are arranged in a circumferential direction, and coils wound around the tooth portion. The laminated iron core includes a plurality of flat plate-shaped iron core pieces laminated in a plate thickness direction. The iron core piece is made of a non-oriented electromagnetic steel plate. A rolling direction of the iron core piece is inclined with respect to the radial direction. The laminated iron core is preferably formed by laminating the iron core pieces to be arranged with a same inclination. At least a pair of the laminated iron cores adjacent to each other in the circumferential direction has inclinations opposite to each other.
Public/Granted literature
- US20180309330A1 MOTOR AND MANUFACTURING METHOD OF MOTOR Public/Granted day:2018-10-25
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