KR200206642Y1 - Vibration and noise damping device for hard disk drive actuator - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a hard disk drive (Hard Disk Drive), and more particularly to a vibration and noise damping device to dampen the vibration and noise by attaching a damper (DAMPER) on the upper and lower surfaces of the actuator (ARM) arm.

2. The technical problem the invention is trying to solve

The present invention is to provide a vibration and noise damping device of the hard disk drive actuator to reduce the vibration and noise by attaching a damper to the arm of the actuator.

3. Summary of solution of design

The present invention is a device provided with a damper on the arm of the actuator.

4. Important uses of the devise

The present invention reduces the vibration and noise generated from the actuator by providing a damper on the arm of the actuator in the vibration and noise damping device of the hard disk drive actuator.

Description

Vibration and noise attenuation device of hard disk drive actuator

1 is a schematic diagram of a vibration and noise damping device of a hard disk drive actuator according to the present invention.

2 is a plan view and a side view of the actuator of FIG.

* Explanation of symbols for main parts of the drawings

10: Base 12: Spindle Motor

14 disc 16 actuator

18: magnetic head 120: arm

22: damper 24: voice coil motor

The present invention relates to a hard disk drive (Hard Disk Drive), and more particularly to a vibration and noise damping device to dampen the vibration and noise by attaching a damper (DAMPER) on the upper and lower surfaces of the actuator (ARM) arm.

In general, a hard disk drive (HARD DISK DRIVE) is a spindle motor that rotates a disk at a constant speed, a disk for storing data as a magnetic medium, a magnetic head for recording and reproducing data on the disk, and the magnetic head. It consists of an actuator that drives the motor and a voice coil motor that gives the actuator a driving force.

The actuator is rotatably installed about the pivot axis, and the bobbin installed at one end thereof moves by the operation of the voice coil motor, and the magnetic head installed at the other end moves on both sides of the disk to record / reproduce data on the track on the disk. .

As 3.5-inch hard disk drives become high-capacity, when external shocks or vibrations are applied, they rise to a very high level on the disk, and the magnetic heads for recording and playing data are vulnerable, and valuable data may be lost.

In recent years, consumers demand products that provide a pleasant environment, and in general, consumers are demanding that noise is low even on a hard disk drive.

Accordingly, an object of the present invention is to provide a vibration and noise damping device of a hard disk drive actuator that reduces vibration and noise by attaching a damper to an arm of an actuator.

According to the above object, the present invention supports a disk which is a recording medium, a spindle motor for rotating the recording medium at a predetermined speed, a magnetic head for recording or reproducing data at a predetermined distance to the recording medium, and the magnetic head. An actuator comprising an arm, a base on which the spindle motor and the actuator are fixed, a voice coil motor for driving the actuator, and a damper for reducing vibration and noise generated when the actuator is driven by the voice coil motor. It is characterized by consisting of the arm provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with the accompanying drawings.

It should be noted that the same parts in the figures represent the same reference signs wherever possible.

Vibration and noise damping device of the hard disk drive actuator according to the present invention, as shown in Figures 1 and 2, the disk 14, which is a recording medium, and the spindle motor 12 for rotating the recording medium at a predetermined speed ), An actuator (16) comprising a magnetic head (18) for recording or reproducing data on the recording medium at a predetermined distance, and an arm (20) for supporting the magnetic head (18), and the spindle motor (12); Vibration and noise generated when the actuator 10 is fixed, the voice coil motor 24 driving the actuator 16, and the actuator 16 is driven by the voice coil motor 24. It consists of the arm 20 with a damper 22 to reduce the pressure.

The damper 22 is composed of a stainless layer and a layer of noncoelastic polymer that is a damping material. The damper 22 is attached to the arm 20 with an adhesive.

In the vibration and noise damping device of the hard disk 14 and the drive actuator 16 according to the present invention configured as described above, as shown in FIG. 1, the damper 22 is attached to the upper and lower surfaces of the arm 20 by an adhesive. The disk 14 is rotatably coupled to the spindle motor 12. And the spindle motor 12 and the actuator 16 is fixed to the base 10, respectively. The voice coil motor 24 is fixed to the base 10 at a predetermined distance from the actuator 16.

Vibration and noise attenuation device of the hard disk drive actuator according to the present invention configured as described above, the disk 14 is rotated at a predetermined speed by the spindle motor 12 as the power is applied, accordingly the magnetic head 18 Rises from the disk 14 to a predetermined height. At this time, the actuator 16 revolves to the voice coil motor 24 so that the actuator 16 is positioned at a desired position, and also maintains the state, and the magnetic head 18 stores data at a specific place of the disk 14. To record / play back. As described above, when the actuator 16 rotates, the actuator 16 generates vibration and noise. Vibration and noise generated in the actuator 16 are attenuated by the damper 22.

Therefore, it is possible to prevent the actuator 16 from being unstable in the position of the magnetic head 18 due to vibration and damaging specific data of the disk 14. It is also possible to reduce noise generated during seek as the magnetic head 18 floats on the disk 14.

According to the present invention as described above, in the vibration and noise damping device of the hard disk drive actuator, a damper is provided on the arm of the actuator, thereby reducing vibration and noise generated from the actuator. Accordingly, the magnetic head moving on the disk by the actuator can reduce the damage on the data on the disk. Therefore, the present invention has the effect of improving the reliability of the hard disk drive.

Claims (2)

An apparatus for attenuating vibration and noise of a hard disk drive, comprising: a disk (14) as a recording medium, a spindle motor (12) for rotating the disk at a predetermined speed, and data recorded or reproduced at a predetermined distance on the disk. An actuator 16 including a magnetic head 18 and an arm 20 supporting the magnetic head 18, a base 10 to which the spindle motor 12 and the actuator are fixed, and the actuator 16; The damper 22 made of a stainless layer and a non-copolymer plastic layer to reduce vibration and noise generated when the voice coil motor 24 and the actuator 16 driven by the voice coil motor 24 are driven. Vibration and noise attenuation device of the hard disk drive actuator, characterized in that consisting of the arm (20). The vibration and noise damping device of a hard disk drive actuator according to claim 1, wherein the damper (22) is attached to the arm (20) with an adhesive.