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Easy to manufacture covering device of a hard disk drive that dampens vibrations and seals internal components within
| Details |
Inventors: Kim, Youn-Tai;
Assignee: SamSung Electronics Co., Ltd. (Suwon, KR)
Primary Examiner: Letscher; George J.
Assistant Examiner:
Attorney, Agent or Firm: Bushnell, Esq.; Robert E.
A covering device of a hard disk drive including a spindle motor having a rotating shaft for rotating a disk, an actuator pivoting about a pivot shaft and having at its distal end a head for reading/writing data while pivoting over the disk, a base for mounting the spindle motor and the actuator thereon, and a cover locked to the base and made of plastic. The covering device comprises at least one thin plate attached to the cover such that it is coaxially arranged with the rotating shaft and/or the pivot shaft, for dampening vibration and noise transferred from around the rotating shaft and/or the pivot shaft to the cover. In one embodiment, the thin plate contains slits to more effectively dampen noise and vibrations generated from the spindle motor and the actuator. In another embodiment, the thin plate for the actuator has the same shape as the operating area of the actuator and contains ruffles to further dampen noise and vibrations generated from the pivot shaft of the actuator. |
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DETAILED DESCRIPTION Accordingly, the present invention has been made in an effort to solve the problems occuring in the related art, and a primary object of the present invention is to provide a covering device of a hard disk drive, which can minimize vibration and noise generated when a spindle motor or an actuator is rotated.
Another object of the present invention is to provide a covering device of a hard disk drive, which can reduce manufacturing cost and improve productivity.
Still another object of the present invention is to provide a covering device of a hard disk drive, which can prevent unwanted plastic particles from being produced at a contact area between a cover and a base or when a screw is initially passed through a locking hole and hinder the inflow of the unwanted plastic particles into the hard disk drive.
It is yet another object to provide a covering device for a hard disk drive in the shape of a washer having slits extending radially from the outer radius of the washer inward in order to more effectively absorb the vibrations and noise created by the actuator and the spindle motor during operation of a hard disk drive.
It is still yet another object to produce a damper that attaches to the cover of a hard disk drive in the shape of the operating area of the actuator for positioning above the actuator, the damper containing repeating depressions and prominences in the form of a ruffle to reduce noise and vibrations generated by the actuator.
In order to achieve the above object, according to the present invention, there is provided a covering device of a hard disk drive including a spindle motor having a rotating shaft for rotating a disk, an actuator pivoting about a pivot shaft and having at its distal end a head for reading/writing data while pivoting over the disk, a base for mounting the spindle motor and the actuator thereon, and a cover locked to the base and made of plastic, the covering device comprising: at least one thin plate attached to the cover such that it is coaxially arranged with the rotating shaft and/or the pivot shaft, for dampening vibration and noise transferred from around the rotating shaft and/or the pivot shaft to the cover
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