Ultra-slim spindle motor
US7521831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2007 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Apr 21, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spindle motor, which includes a bearing to rotatably support a rotating shaft, a bearing holder to securely hold the bearing therein, a base to securely support the bearing holder thereon, a thrust washer aligned at the upper end thereof with the upper end of the base in the same horizontal plane and supporting the rotating shaft in a thrusting direction, a thrust washer cover to receive the thrust washer, and a bearing holder support securely installed between the thrust washer cover and the base and supporting the bearing holder. The bearing holder support is secured to the bearing holder and covers both the lower end of the bearing and part of the lower end of the bearing holder. The bearing holder support includes a protrusion inserted into a depression formed on the lower end of the bearing holder and an edge caulked to the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.