Ventilation structure of a cover for a disk drive

Details Ventilation structure of a cover for a disk drive Ventilation structure of a cover for a disk drive

1996-10-30

1999-03-02

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

G11B 3308, G11B 3314

Patent

active

058779159

ABSTRACT:
A breather structure for ventilation between the inside and outside of the housing of the disk drive is realized by a simple, inexpensive construction. The cover structure is for a disk drive provided on a base with a spindle motor carrying recording disks and an actuator for driving a carriage carrying heads for writing information on the disks, with the inside sealed airtight by attaching a cover to the gas through a gasket, and with an antivibration plate for preventing vibration and noise from generating when driving the disks at the surface of the cover contacting the outside air either directly or through a viscoelastic member. A ventilation groove for ventilating between the inside and outside of the disk drive is realized by forming a breather passage designed considering the passage conductance between the cover and the antivibration plate, providing a breather vent communicating the breather passage with the outside in the antivibration plate at one end of the breather passage, and providing a breather vent communicating the breather passage with the inside of the disk drive at the cover at the other end.

REFERENCES:
patent: Re34497 (1994-01-01), Blanks
patent: 4863499 (1989-09-01), Osendorf
patent: 5030260 (1991-07-01), Beck et al.
patent: 5214549 (1993-05-01), Baker et al.
patent: 5235482 (1993-08-01), Schmitz
patent: 5307222 (1994-04-01), Dion
patent: 5537270 (1996-07-01), Morehouse et al.

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