Invention Grant
- Patent Title: Spindle motor having a bushing for a lead wire
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Application No.: US15917886Application Date: 2018-03-12
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Publication No.: US10566872B2Publication Date: 2020-02-18
- Inventor: Ryo Miyoshi , Takuo Miyake
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett
- Priority: JP2017-184787 20170926
- Main IPC: H02K3/38
- IPC: H02K3/38 ; H02K1/16 ; H02K3/50 ; H02K3/12 ; H02K3/52 ; H02K11/33 ; H02K5/22

Abstract:
A motor includes a lead wire insert hole arranged to have a lead wire extending from any of coils pass therethrough, and a bushing inserted in the lead wire insert hole. The bushing includes a body portion arranged to extend in a first direction; a plurality of through holes each of which is arranged to pass through the body portion in the first direction; and a plurality of projecting portions each of which is arranged to extend in the first direction, and project from a lateral surface of the body portion in a direction perpendicular to the first direction. Each through hole includes a cylindrical first hole portion arranged to have an opening on a first side in the first direction; and a second hole portion arranged to have an opening on a second side in the first direction, and to be continuous with the first hole portion, and including a slanting surface arranged to decrease in a diameter toward the first hole portion. A portion of the lead wire is arranged in a corresponding one of the through holes.
Public/Granted literature
- US20190097483A1 MOTOR Public/Granted day:2019-03-28
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