Damped protective cover to improve disc drive acoustics
US6674608B1 · kind B1 · utility
10Cited by
24References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Mar 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A damped PCBA protective cover for reducing acoustic emissions in a disc drive assembly is disclosed. The disc drive assembly comprises a base, a circuit board mounted to the base and a cover fastened to the base and extending over the circuit board. A constrain layer is affixed to the cover that includes a stiffening member and a damping member disposed between the cover and the stiffening member. The constrain layer can be affixed to either side and dampens/absorbs vibrations generated during operation of the disc drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.