Spindle motor having a bushing for a lead wire
US10566872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.