Invention Grant
- Patent Title: Stator, motor, disk drive apparatus, and method of manufacturing stator
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Application No.: US15752618Application Date: 2016-09-21
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Publication No.: US10320258B2Publication Date: 2019-06-11
- Inventor: Hiroyuki Abe
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2015-189176 20150928
- International Application: PCT/JP2016/077897 WO 20160921
- International Announcement: WO2017/057153 WO 20170406
- Main IPC: G11B19/20
- IPC: G11B19/20 ; H02K3/52 ; H02K3/50 ; H02K1/14 ; H02K1/27 ; H02K1/30 ; H02K3/18 ; H02K7/08 ; H02K15/00 ; H02K15/02 ; H02K15/095 ; H02K21/22

Abstract:
In this stator, a passage line extending in a circumferential direction is disposed in a circumferential gap between two circumferentially adjacent ones of coils. A lead wire continuous with a conducting wire defining one of the coils includes a bend portion being bent in the gap with the passage line serving as a supporting point; a led-out portion arranged to extend from the coil to one side in an axial direction to the bend portion; and a connection portion arranged to extend from the bend portion to another side in the axial direction. At least a portion of a portion of the lead wire which overlaps with the passage line when viewed in a radial direction is arranged at a radial position between the passage line and a core back. Thus, the lead wire is bent with the passage line serving as the supporting point to reverse the direction in which the lead wire runs in the axial direction, and this contributes to preventing a slackening of the connection portion of the lead wire from causing the lead wire to be slackened to the one side in the axial direction. This in turn reduces the likelihood that the lead wire will be brought into contact with a member arranged on the one side of the stator in the axial direction.
Public/Granted literature
- US20190036410A1 STATOR, MOTOR, DISK DRIVE APPARATUS, AND METHOD OF MANUFACTURING STATOR Public/Granted day:2019-01-31
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