Disk drive with airflow control and fins at a transition surface between base surfaces
US7535671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention suppress the occurrence of turbulence in a disk drive. In one embodiment, an HDD includes a spindle motor for rotating a magnetic disk, and a base for housing the spindle motor therein. The base includes a first bottom surface opposed to the magnetic disk, and a second bottom surface that is opposed to the magnetic disk and that is larger in distance to the magnetic disk than the first surface. A step is formed between the first bottom surface and the second bottom surface, where rotation of the magnetic disk produces an airflow running from the first surface toward the second surface. The step is provided with upright fins extending from the first surface toward the second surface which are stood upright.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.