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US 7,460,333 B2Granted
Hard disk drive with humidity control using membrane electrode assembly
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorsNaotoshi Akamatsu, Toshiaki Ohtani
Life of this patent
Estimating the term…
Abstract
In one embodiment, a magnetic disk drive is equipped with a mechanism that dehumidifies moisture through a passage or a moisture penetrating body that restrains the flow of water molecules within the magnetic disk drive by means of a membrane electrode assembly for electrolysis dehumidification.
Claims20
A magnetic disk drive, comprising:
- a magnetic disk in which information is written;
- a magnetic disk driving mechanism that rotates the magnetic disk;
- and
- a magnetic head mechanism including a magnetic head that reads and/or writes information on the magnetic disk, and a magnetic head driving mechanism that drives to move the magnetic head relative to the magnetic disk;
- the magnetic disk, the magnetic disk driving mechanism, and the magnetic head mechanism being housed inside an enclosure that restrains the flow of air from the outside,
- wherein the magnetic disk drive includes a membrane electrode assembly formed completely outside the enclosure and configured to adjust the humidity inside the enclosure, and a dehumidifying passage that restrains an inflow of water molecules between a dehumidifying face of the membrane electrode assembly and the inside of the enclosure.
3 more elements
A magnetic disk drive, comprising:
- a magnetic disk in which information is written;
- a magnetic disk driving mechanism that rotates the magnetic disk;
- and
- a magnetic head mechanism including a magnetic head that reads and/or writes information on the magnetic disk, and a magnetic head driving mechanism that drives to move the magnetic head relative to the magnetic disk;
- the magnetic disk, the magnetic disk driving mechanism, and the magnetic head mechanism being housed inside an enclosure that restrains the flow of air from the outside,
- wherein the magnetic disk drive includes a membrane electrode assembly formed completely outside the enclosure and configured to adjust the humidity inside the enclosure, and a moisture permeable member that restrains an inflow of water molecules between a dehumidifying face of the membrane electrode assembly and the inside of the enclosure.
3 more elements
Dependencies are inferred from the claim text.