In a disk drive apparatus having a diverter for providing streamlined contour and reduced axial flow at the actuator attachment interface between a flexible cable and flexure
US7787219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2007 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/148
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An airflow diverter is used to overcome the adverse effect of flow-induced vibration of a disk drive pivot actuator. The diverter may be formed as a separate component or as an integral portion of the flex stiffener or the actuator itself. The invention streamlines the actuator to the incoming airflow and helps reduce the torque disturbance to the actuator as it reduces the sail or parachute effect. This helps reduce power consumption due to a lower drag from the actuator assembly. The contour of the flow deflector is designed to conform closely to the curvature of the disk boundaries when the actuator is rotated to the ID position on the disk. This design serves as a shroud around the disk stack which further helps to reduce power by preserving flow momentum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.