Spindle motor with two-piece shaft and connector
US5982061A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2211/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved, simplified spindle motor design for use in a disc drive is provided, which utilizes a two-piece shaft and provides a central connector in the bottom section of the shaft which can be easily connected through the base to a power source for the motor. The improved spindle motor has a stator and motor connector which can be easily assembled into the spindle motor before the bearings and other elements are installed so that the cleaning and soldering of the stator and motor connector can be efficiently achieved. Further, the spindle and motor connector design incorporates an effective electrical grounding path between the stator and the central shaft of the spindle motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.