Acoustically damped disc drive assembly
AssigneeSeagate Technology LLC
InventorsJonathan P. Baker, Kenneth L. Pottebaum
Life of this patent
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Abstract
An acoustically damped disc drive assembly having a housing, the disc drive assembly having internally disposed components capable of generating acoustic vibrations, the housing having a cover comprised of a plurality of plate members, each pair of the plate members having a damping layer disposed therebetween for damping acoustic vibrations imparted to the cover by the internally disposed components. In addition to the damping layer, which is preferably a viscoelastic material compositely bonding such plate members together, an acoustic isolator area may be provided to surround the attachment points of the internally disposed components to the cover in order to provide further damping of the acoustic vibrations.
Claims21
A cover for a housing of a disc drive assembly, the disc drive assembly having internally disposed components generating acoustic vibrations, the cover comprising:
- a plurality of plate members;
- and
- damping means disposed between each pair of plate members for
- damping acoustic vibrations imparted to the cover by the internally disposed components.
An improved housing for a disc drive assembly having internally disposed components capable of generating acoustic vibrations, the housing having a cover comprising:
- a first plate member;
- a second plate member;
- and
- damping means disposed between the first and second plate members for bonding the first and second plate members together and for damping acoustic vibrations generated within the housing.
An improved housing for a disc drive assembly in which at least the pivot shaft is supported by the housing, the housing comprising:
- a plurality of plate members, one of the plate members supporting one end of the pivot shaft;
- and
- damping means disposed between the plate members for damping acoustic vibrations imparted by the pivot shaft, the damping means comprising a viscoelastic damping layer between each pair of plate members and contacting both such plate members.
Dependencies are inferred from the claim text.