Spindle motor with sleeve holder including cylindrical part, seating part, and coupling part
US8629593B2 · kind B2 · utility
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0References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2011 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Jun 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/09
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a spindle motor including: a sleeve rotatably supporting a shaft; a sleeve holder supporting the sleeve and formed through a pressing process; a stator core fixedly mounted on an outer circumferential surface of the sleeve holder; and a pulling magnet fixedly mounted on an upper surface of the stator core, wherein the stator core includes a burr insertion stepped part formed in a lower portion of an inner diameter portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.