Insert for dampening acoustic vibration and shielding magnetic flux for use in a disc drive
US6411463B1 · kind B1 · utility
14Cited by
22References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Sep 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to an insert for use in a disc drive to dampen acoustic vibration and shield electronic elements from stray magnetic flux generated by a magnet assembly of a voice coil motor. The insert includes an acoustic insulator portion and a magnetic shield. The acoustic insulator portion is compressed between a base and a circuit board of the disc drive to suppress vibration of the circuit board. The magnetic shield is attached to the acoustic insulator portion below the magnet assembly and is shaped to shield a portion of the circuit board from stray magnetic flux generated by the magnet assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.