Anechoic chamber noise reduction for a disc drive
AssigneeSeagate Technology LLC
InventorZine Eddine Boutaghou
Life of this patent
Estimating the term…
Abstract
A disc drive system includes a base plate, a spindle attached to the base plate, and at least one disc attached to the spindle. A cover is also included for attaching to the base plate. The cover and the base plate form a disc enclosure which encloses the at least one disc, a portion of the spindle, and the actuator assembly. The disc drive system also includes a mechanism for attenuating acoustical emissions produced by the spindle, the at least one disc, and the actuator assembly. The mechanism includes anechoic features formed on the interior of the disc enclosure, using a liner formed with the anechoic features or having the anechoic features formed integral on one or both of the cover and base plate.
Claims20
A disc drive comprising:
- a base plate;
- a spindle attached to the base plate;
- at least one disc attached to the spindle, the spindle adapted to rotate with respect to the base plate;
- a cover for attaching to the base plate, the cover and the base plate forming a disc enclosure which encloses the at least one disc and a portion of the spindle, the disc enclosure having an interior surface and an exterior surface wherein at least a portion of the interior surface consists of a plurality of anechoic pointed protrusions extending into an interior space of the disc enclosure.
A method for substantially reducing vibrations from a disc drive system having a base plate and a cover which form a disc enclosure having an interior surface and an exterior surface, the method comprising steps of:
- (a) providing a plurality of anechoic pointed protrusions on the base plate corresponding to the interior surface of the disc enclosure;
- and
- (b) providing anechoic pointed protrusions on the cover corresponding to the interior surface of the disc enclosure.
A disc drive system comprising:
- a base plate;
- a spindle attached to the base plate;
- at least one disc attached to the spindle, the spindle adapted to rotate with respect to the base plate;
- an actuator assembly attached to the base plate, the actuator assembly adapted to rotate with respect to the base plate;
- a cover for attaching to the base plate, the cover and the base plate forming a disc enclosure which encloses the at least one disc, a portion of the spindle, and the actuator assembly;
- and
- means for attenuating acoustical emissions produced by the spindle, the at least one disc, and the actuator assembly.
Dependencies are inferred from the claim text.