Invention Grant
- Patent Title: Motor and electric power steering apparatus
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Application No.: US16086031Application Date: 2017-04-19
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Publication No.: US10998782B2Publication Date: 2021-05-04
- Inventor: Hiromitsu Ohashi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett
- International Application: PCT/JP2017/015721 WO 20170419
- International Announcement: WO2017/183656 WO 20171026
- Main IPC: H02K29/03
- IPC: H02K29/03 ; H02K1/27 ; H02P6/10 ; H02P27/06

Abstract:
A motor includes a rotor including a rotor core and permanent magnets along an outer periphery of the rotor core, and a stator including windings. Each of the permanent magnets includes a first face in contact with the outer periphery of the rotor core and a second face located outside the first face in a radial direction of the rotor and which faces the stator. In a plan view when the rotor is viewed from a direction parallel to the rotation axis direction of the rotor, the first face includes a linear portion, the second face includes a linear portion parallel to the linear portion of the first face, and a length of the linear portion of the second face is 20% or more and less than 85% of a length of the linear portion of the first face.
Public/Granted literature
- US20200303976A1 MOTOR AND ELECTRIC POWER STEERING APPARATUS Public/Granted day:2020-09-24
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