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Hard disk driver

A hard disk drive and drive motor technology, applied in the direction of instruments, chemical instruments and methods, separation methods, etc., can solve the problems of small pressure difference and affecting filtration performance, etc.

Active Publication Date: 2013-04-17
WESTERN DIGITAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using a gas that is lighter than ambient air inside the hard drive can negatively impact filtration performance because of the smaller pressure differential across the particulate filter

Method used

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Embodiment Construction

[0021] Methods are described for improving gas filtration in hard disk drives (HDDs) that are sealed and filled with a gas lighter than ambient air, such as substantially helium. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention described herein. It may be evident, however, that the embodiments of the invention described herein may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the embodiments of the inventions described herein.

[0022] Physical Description of Exemplary Embodiments of the Invention

[0023] refer to figure 1 , shows a plan view of the HDD 100 according to an embodiment of the present invention. figure 1 A functional arrangement of components of an HDD including a slider 110b including a magnetic recording...

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Abstract

Approaches for a hard-disk drive (HDD) comprised within a sealed enclosure that is filled with a substantially helium gas are provided. The HDD may include a shroud that surrounds a majority of a perimeter of a magnetic-recording disk. The HDD may also include an upstream spoiler having one or more wings. The shape of the upstream spoiler diverts a flow of the substantially helium gas that circulates when the magnetic-recording disk is rotating from a magnetic-recording head to a plenum chamber. The plenum chamber has a mouth that allows a portion of the circulating flow of substantially helium gas to flow therein. The mouth of the plenum chamber is a gap in the shroud that is prior to the upstream spoiler in the circulating flow of the substantially helium gas. A portion of the plenum chamber is formed using a particle filter opposing the gap.

Description

technical field [0001] Embodiments of the present invention generally relate to improving gas filtration in hard disk drives (HDDs) that are sealed and filled with a gas lighter than ambient air, and more specifically to improving hard disk drives (HDDs) that are sealed and filled substantially with helium gas ( HDD) in gas filtration. Background technique [0002] The operation of certain computing equipment can be adversely affected by the presence of environmental hazards, such as air pollutants. To prevent this damage from happening, some sensitive equipment can be housed in enclosures designed to keep out airborne contaminants. [0003] An example of a piece of sensitive equipment housed in a protective enclosure is a hard disk drive (HDD). An HDD is a non-volatile memory device that is housed in a protective housing and stores digitally encoded data on one or more platters with magnetic surfaces. When the HDD is in operation, each platter is spun rapidly by a spindl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B33/14B01D46/00
CPCG11B25/043G11B33/1446G11B33/146B01D46/103
Inventor C.A.布朗
Owner WESTERN DIGITAL TECH INC