Spindle motor having a magnet which is field centered relative to the stator
US6084323A · kind A · utility
5Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1997 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Jun 16, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A spindle motor in a disc drive has a rotor assembly rotatably mounted to a base. A stator is mounted to the base and a magnet is mounted to the rotor assembly. The magnet or the stator is allowed to move in an axial direction relative to the other under the influence of magnetic interaction between the magnet and the stator. The magnet and stator are then rigidly fixed relative to one another in the axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.