Diversion of tangential airflow in a disc drive
US7057851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Jun 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc drive includes a housing surrounding a voice coil in a voice coil cavity, and a disc in a disc cavity. The disc has data tracks and an outer diameter. The disc rotates to induce an airflow along the outer diameter. The voice coil actuates an actuator arm in the disc cavity to access the data tracks. An air dam is in the disc cavity upstream of the actuator arm. The airflow includes a straight line tangent airflow portion along a straight edge of a shroud that is free of obstructions and upstream of the air dam. The straight line airflow portion extends from an arc airflow portion around the outer diameter to the voice coil cavity along a straight line path tangent to the outer diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.