Protective magnet shield for a spindle motor
US6018438A · kind A · utility
5Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A simplified spindle motor assembly is disclosed, in which the need for scrap or rework of the motor as it is being assembled is reduced, and a protective shield for the magnet protects the magnet from bumping into the sharp edges of the stator when the sleeve of the motor which supports the magnet is being assembled into the base of the disc drive. In addition, the simplified device for aligning the magnet axially along the sleeve properly aligns the magnet axially with the stator which is separately supported from the base when the sleeve and shaft are assembled into the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.