Acoustic noise suppressor for a disc drive
OwnerAaron Steve Macphersoninventor
Life of this patent
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Abstract
An acoustic noise suppressor for a disc drive, the disc drive having a spinning spindle hub supporting a data disc in rotation. The suppressor comprises an annular spacer defining a bore, the spacer comprising a top surface and a bottom surface communicating with the longitudinal extents of the bore. A mass-loading element extends from the spacer opposite the bore, the mass-loading element comprising a top surface and a bottom surface in substantially parallel relation intermediate the spacer top and bottom surfaces.
Claims20
An acoustic noise suppressor for a disc drive, the disc drive having a spinning spindle hub supporting a data disc in rotation, the suppressor comprising:
- an annular spacer defining a bore, the spacer comprising a top surface and a bottom surface communicating with the longitudinal extents of the bore, the spacer positionable around the spindle hub so that a portion of the spindle hub is receivingly disposed in the bore, traversing the spacer top and bottom surfaces;
- and
- a mass-loading element extending from the spacer opposite the bore, the mass-loading element comprising a top surface and a bottom surface in substantially parallel relation intermediate the spacer top and bottom surfaces.
A disc drive spindle assembly, comprising;
- a rotatable spindle hub;
- a data disc coupled to the spindle hub;
- an acoustic noise suppressor, comprising:
- an annular spacer defining a bore, the spacer comprising a top surface and a bottom surface communicating with the longitudinal extents of the bore, the spacer positioned around the spindle hub so that a portion of the spindle hub is receivingly disposed in the bore, traversing the spacer top and bottom surfaces;
- and
- a mass-loading element extending from the spacer opposite the bore, the mass-loading element comprising a top surface and a bottom surface in substantially parallel relation intermediate the spacer top and bottom surfaces;
- and
- a disc clamp clamping the data disc and the suppressor in axial alignment for fixed rotation with the spindle hub.
A disc drive, comprising:
- an enclosure;
- a motor supported by the enclosure and spinning, in turn, a data disc;
- and
- suppressor means interposed between the spinning data disc and a portion of the enclosure for suppressing acoustic noise generated by the spinning data disc.
Dependencies are inferred from the claim text.