Information storage device with a damping insert sheet between a housing bay and a disk drive
View Patent ↗A novel information storage device is disclosed and claimed. The information storage device includes a device housing with a generally rectangular bay to accommodate a disk drive. The generally rectangular bay includes a base portion and a plurality of side portions. The information storage device further includes a damping insert sheet disposed between the disk drive and the base portion. The damping insert sheet has a plurality of elastomeric cushions, for example with a cushion thickness in the range 0.5 mm to 10 mm, and a spanning sheet, for example having a sheet thickness in the range 0.02 mm to 0.35 mm. Each of the plurality of elastomeric cushions is attached to the spanning sheet. Each of the plurality of elastomeric cushions contacts and is compressed between the generally rectangular bay and the disk drive.
1. An information storage device comprising:
a disk drive;
a device housing that includes a generally rectangular bay to accommodate the disk drive, the generally rectangular bay including a base portion and a plurality of side portions; and
a damping insert sheet disposed between the disk drive and the base portion, the damping insert sheet comprising:
a plurality of elastomeric cushions; and
a spanning sheet lying on a single plane, each of the plurality of elastomeric cushions being attached to a corner of the spanning sheet, lying above the spanning sheet and extending beyond a perimeter of the spanning sheet in a non-compressed state, and being thicker than the spanning sheet;
wherein each of the plurality of elastomeric cushions contacts, and is compressed between, the generally rectangular bay and the disk drive.
2. The information storage device of claim 1 wherein the disk drive has a head-disk assembly and a printed circuit board assembly (PCBA) attached to the head-disk assembly, the head-disk assembly including a disk drive cover that does not face the disk drive PCBA, and wherein the damping insert sheet is disposed between the disk drive PCBA and the base portion, with at least one of the plurality of elastomeric cushions contacting the disk drive PCBA.
3. The information storage device of claim 2 further comprising a bay cover that encloses the disk drive within the generally rectangular bay, the disk drive cover being adjacent and facing the bay cover.
4. The information storage device of claim 1 wherein the disk drive has a head-disk assembly and a printed circuit board assembly (PCBA) attached to the head-disk assembly, the head-disk assembly including a disk drive cover that does not face the disk drive PCBA, and wherein the damping insert sheet is disposed between the disk drive cover and the base portion, with at least one of the plurality of elastomeric cushions contacting the disk drive cover.
5. The information storage device of claim 4 further comprising a bay cover that encloses the disk drive within the generally rectangular bay, the disk drive PCBA being adjacent and facing the bay cover.
6. The information storage device of claim 1 wherein the disk drive defines a plurality of external disk drive corners and the plurality of elastomeric cushions contacts, and is compressed between, the generally rectangular bay and the disk drive adjacent a respective one of the external disk drive corners.
7. The information storage device of claim 1 wherein the plurality of side portions meet to define a plurality of internal bay corners adjacent the base portion, and each of the plurality of elastomeric cushions contacts, and is compressed between, the generally rectangular bay and the disk drive adjacent a respective one of the plurality of internal bay corners.
8. The information storage device of claim 1 wherein the spanning sheet comprises a polymer material that is doped with an electrically dissipative dopant.
9. The information storage device of claim 1 wherein the spanning sheet comprises a polymer material that is coated with an electrically dissipative coating.
10. The information storage device of claim 1 wherein the plurality of elastomeric cushions comprises a polyurethane foam doped with an electrically dissipative dopant.
11. The information storage device of claim 1 wherein the plurality of elastomeric cushions comprises a viscoelastic material coated with an electrically dissipative coating.
12. The information storage device of claim 1 wherein the elastomeric cushions have a cushion thickness in the range 0.5 mm to 10 mm, and the spanning sheet has a sheet thickness in the range 0.02 mm to 0.35 mm.
13. The information storage device of claim 1 further comprising a bay cover that encloses the disk drive within the generally rectangular bay, the bay cover comprising:
a cover component; and
an electrically conductive cover component located between the cover component and the disk drive.