US 9,870,803 B2Granted

Adhesive cover seal for hermetically-sealed data storage device

AssigneeWestern Digital Technologies, Inc.

InventorsThomas R. Albrecht, Darya Amin-Shahidi, Toshiki Hirano, Kirk B. Price

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Abstract

A data storage device involves a plurality of continuous sidewalls and corner portions of a tub cover overlapping with and hermetically sealed with a corresponding plurality of sidewalls and corners of an enclosure base using an epoxy adhesive. Base protrusions and/or cover dimples may be used to set a suitable gap between the parts. A robust hermetic seal provides for filling the HDD with a lighter-than-air gas. A tub cover may include corners having a tapered radius that decreases from the top to the bottom edge, and a base may include corners having a constant-radius outer surface and sidewalls having a sloped upper surface, whereby an assembly interference fit between the base and the tub cover is formed by forcing outward each sidewall of the tub cover while forcing inward at least a portion of each corner of the tub cover.

Claims24

Dependent claims

A data storage device comprising:

an enclosure base comprising a plurality of sidewalls and corner portions each having an outer surface, wherein each said corner portion of said base has a substantially constant-radius outer surface;
a tub cover comprising continuous sidewalls extending from a top portion and including corner portions, wherein each said sidewall and said corner portion of said tub cover overlaps at least in part with a corresponding said outer surface of said sidewall and a corresponding said outer surface of said corner portion of said base, wherein each said corner portion of said tub cover has a tapered radius that decreases from said top portion in a direction to a bottom edge;
and
a hermetic seal among said base and said tub cover, comprising:
an epoxy adhesive at:
an interface of each said sidewall of said tub cover and each said outer surface of said corresponding sidewall of said base, and
an interface of each said corner portion of said tub cover and each said outer surface of said corresponding corner portion of said base.

4 more elements

A method of assembling a data storage device, the method comprising:

attaching a first cover to an enclosure base comprising a plurality of sidewalls each having an outer surface and a plurality of corner portions each having an outer surface, wherein each said corner portion of said base has a substantially constant-radius outer surface;
positioning each of a plurality of sidewalls of a tub cover to overlap at least in part with a corresponding said outer surface of said sidewall of said base and each of a plurality of corner portions of said tub cover to overlap at least in part with a corresponding corner portion of said base, wherein each said corner portion of said tub cover has a tapered radius that decreases from a top portion in a direction to a bottom edge;
and
applying an epoxy adhesive at an interface of each said sidewall of said tub cover and said outer surface of said corresponding sidewall of said base and at an interface of each said corner portion of said tub cover and said outer surface of said corresponding corner portion of said base to form a hermetic seal among said tub cover and said base.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/168,895Filed 31 May 2016 · us provisional application
Priority: 20 Aug 2015
Published: US 2017/0053679 A123 Feb 2017
Granted: 16 Jan 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G11B 33/1466
Reducing contamination, e.g. by dust, debris: sealing gaskets,
G11B 25/043
Using flat record carriers, e.g. disc, card: using rotating discs
G11B 33/027
Cabinets; Cases; Stands; Disposition of apparatus therein or thereon: covers
G11B 33/1446
Reducing influence of physical parameters, e.g. temperature change, moisture, dust: reducing contamination, e.g. by dust, debris