Apparatus and method for inhibiting high-frequency, electromagnetic interference from non-metallic hard disk drive carriers
AssigneeNetApp, Inc.
InventorsBen Kim, Tony Loo
Life of this patent
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Abstract
A high-frequency energy absorbing member is used with a disk drive carrier to attenuate high-frequency electromagnetic radiation emitted from a hard disk drive housed within the disk drive carrier. The use of the high-frequency energy absorbing member allows various other components of the disk drive carrier to be manufactured from less expensive materials which are ineffective at attenuating high-frequency electromagnetic radiation.
Claims25
A disk drive carrier which houses a hard disk drive and which has improved shielding for electromagnetic interference (EMI) emitted by the hard disk drive, comprising:
- a disk drive tray which receives the hard disk drive within the disk drive carrier, the disk drive tray comprising a non-conductive material and a layer of conductive material attached to the disk drive tray to shield a portion of the EMI emitted by the hard disk drive;
- a handle and a handle housing connected to a front side of the disk drive tray, the handle pivotally connected to the handle housing for moving the disk drive carrier into and out of a position in which the disk drive carrier is normally retained during use, the handle and the handle housing formed substantially of material which is substantially incapable of absorbing electromagnetic radiation;
- and
- a high-frequency energy absorbing member located at the handle housing, the high-frequency energy absorbing member absorbing EMI emitted at the handle housing.
A method of reducing electromagnetic interference (EMI) emitted from hard disk drives housed within disk drive carriers in use positions on a disk storage shelf, comprising:
- using the disk drive carriers each of which has a disk drive tray for housing a hard disk drive, a handle housing connected to a front side of the disk drive tray, a handle pivotally connected to the handle housing for moving the disk drive carrier into and out of a position in which the disk drive carrier is normally retained during use on the disk storage shelf, the handle housing formed substantially of material which is substantially incapable of absorbing electromagnetic radiation;
- locating a high-frequency energy absorbing member at the handle housing to absorb the EMI emitted from the disk drive at the handle and handle housing;
- and wherein:
- the disk drive tray comprises a non-conductive material, and a layer of conductive material is attached to the disk drive tray to shield a portion of the EMI emitted by the hard disk drive.
Dependencies are inferred from the claim text.