Acoustic damper for a disc drive
AssigneeSeagate Technology LLC
InventorsRishi Kant, Menachem Rafaelof, Michael Alan Maiers
Life of this patent
Estimating the term…
Abstract
A disc drive device includes a base plate, a voice coil motor operably attached to the base plate, a top cover attached to the base plate with at least two perimeter fasteners and at least one interior fastener, wherein the two perimeter fasteners and the interior fastener form a triangular portion of the top cover therebetween, a pressure seal sealing the top cover and the base plate, and an acoustic damper contacting the voice coil motor and the triangular portion of the top cover for damping vibrations occurring in the voice coil motor and the top cover. The acoustic damper is made of the same material as the pressure seal. In this manner, vibrationally induced acoustical emissions from the disc drive device are reduced.
Claims15
A disc drive comprising:
- a base plate;
- a voice coil motor operably attached to the base plate;
- a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover;
- a pressure seal formed of a material positioned between the top cover and the base plate;
- and
- a first acoustic damper wholly within the triangular portion and positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal.
A disc drive comprising:
- a base plate;
- a voice coil motor operably attached to the base plate;
- a top cover attached to the base plate with perimeter fasteners and one interior fastener, wherein two perimeter fasteners and the interior fastener form a triangular portion of the top cover;
- a pressure seal formed of a material positioned between the top cover and the base plate;
- a first acoustic damper positioned between and contacting the voice coil motor and the triangular portion of the top cover, wherein the acoustic damper comprises the same material as the pressure seal, and;
- a stiffening ridge in the top cover defining an isolated portion, wherein the stiffening ridge overlaps the triangular portion of the top cover and the acoustic damper contacts the isolated portion of the top cover.
A disc drive damping system comprising:
- a disc drive having a base plate, a voice coil motor connected to the base plate, and a top cover attached to the base plate with two perimeter fasteners and one interior fastener forming a triangular portion of the top cover therebetween;
- and
- a first damping means positioned wholly within the triangular portion and positioned between and contacting the triangular portion of the top cover and the voice coil motor for damping vibrations in the disc drive.
Dependencies are inferred from the claim text.