Method of making a spindle motor to allow magnetic alignment between the magnet and the stator in the motor
US5664314A · kind A · utility
7Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1995 |
| Grant date | Sep 9, 1997 |
| Priority date | — |
| Expiry date | May 8, 2015 |
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.