Invention Grant
- Patent Title: Motor
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Application No.: US15972258Application Date: 2018-05-07
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Publication No.: US10541571B2Publication Date: 2020-01-21
- Inventor: Yuya Horii , Kohei Kurazono
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett
- Priority: JP2017-105231 20170529
- Main IPC: H02K1/14
- IPC: H02K1/14 ; H02K5/16 ; H02K5/167 ; H02K21/22 ; F16C33/08 ; F16C17/10 ; H02K15/14 ; H02K15/02

Abstract:
A motor includes a bearing housing and a stator. The stator includes a stator core, an insulator, and a conductor. The insulator is an insulating body covering at least a part of the stator core. The conductor is wound around the stator core via the insulator. The bearing housing includes a first inner peripheral surface and a first outer peripheral surface. The first inner peripheral surface holds a bearing. The first outer peripheral surface is in contact with the insulator directly or via an adhesive. A surface roughness of the first outer peripheral surface is greater than a surface roughness of the first inner peripheral surface. Therefore, a friction coefficient between the first outer peripheral surface and the insulator increases. Therefore, it is possible to suppress position deviation of the stator with respect to the bearing housing.
Public/Granted literature
- US20180342912A1 MOTOR Public/Granted day:2018-11-29
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