JPH02226577A - Air filter for magnetic disk device - Google Patents

Abstract

PURPOSE:To prevent dust from approaching a magnetic head and to improve reliability for a device by capturing the dust entered between magnetic disks just before the magnetic head. CONSTITUTION:A spindle hub structure 1 holds and rotates plural sheets of magnetic disk 2. A frame 3 is formed in length equivalent to almost a range extending from the inner periphery to the outer periphery of the magnetic disk 2, and is provided with an arm part 4 inserted between the magnetic disks 2 in parallel with the magnetic disk. Therefore, the frame 3 is formed in comb- line shape. And a through hole 5 through which the air passes is formed at the arm part 4, and a filter 6 for air cleaning is mounted on the arm 4 with an adhesive 7 so as to shield the through hole 5. Thereby, the dust mixed in an air flow generated according to the rotation of the magnetic disk 2 can be captured just before the magnetic head.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a magnetic disk device.

In particular, it relates to an air filter inside a magnetic disk drive.

[Prior Art] Generally, a magnetic disk drive includes a spindle shaft structure that holds and rotates a plurality of magnetic disk plates, and a carriage mechanism that moves a magnetic head that reads and writes data to the magnetic disk plates. It consists of a base frame that holds and seals the

In the conventional air filter for this type of magnetic disk device, the air filter is installed near the outside of the magnetic disk plate inside the magnetic disk device.
Dust was removed using the wind pressure generated as the magnetic disk plate rotated.

[Problems to be solved] In the conventional air filter described above, the air filter is installed outside the magnetic disk plates, so it is necessary to prevent dust that has entered between the magnetic disk plates from getting close to the magnetic head. The problem was that it was not possible.

The present invention has been made in view of the above-mentioned problems.
To provide an air filter capable of removing dust that has entered between magnetic disk plates.

[Means for Solving the Problem] In order to achieve the above object, the present invention provides a magnetic disk drive having a spindle that holds and rotates a plurality of magnetic disk plates, in which an air cleaning filter is provided between each of the magnetic disk plates. This is a configuration in which .

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a partially omitted front view showing an embodiment of an air filter according to the present invention, FIG. 2 is a partially omitted plan view, and FIG. 3 is a sectional view taken along the line AA in FIG. 2.

In these figures, 1 is a spindle hub structure that holds and rotates a plurality of magnetic disk plates 2.

Reference numeral 3 denotes a frame, which has a length approximately equal to the distance from the inner circumference to the outer circumference of the magnetic disk plates 2, and includes arm portions 4 that are inserted between the respective magnetic disk plates 2 in parallel with the magnetic disk plates. There is. That is, the frame 3 has a comb shape.

As shown in FIG. 3, the arm portion 4 is formed with a through hole 5 (that is, an air flow path) through which air passes, and an external air purifying filter is formed to cool this through hole 5. 6 is attached with adhesive 7.

According to such an air filter, dust mixed in the airflow generated as the magnetic disk plate 2 rotates can be captured by the filter 6 immediately before the magnetic head.

[Effects of the Invention] As explained above, the present invention can prevent dust from coming close to the magnetic head by trapping the dust that has entered between the magnetic disk plates just before the magnetic head. This has the effect of preventing troubles such as head crashes caused by dust entering between the disks, thereby improving the reliability of the magnetic disk drive.

[Brief explanation of the drawing]

FIG. 1 is a partially omitted front view showing an embodiment of an air filter according to the present invention, FIG. 2 is a partially omitted plan view, and FIG. 3 is a sectional view taken along the line AA in FIG. 2. 1 Nisbintle hub structure 2: Magnetic disk plate 3: Frame 6: Filter 1st cause 2nd prisoner Figure 3 Agent Patent attorney Kihei Watanabe

Claims (1)

[Claims] 1. An air filter for a magnetic disk drive having a spindle that holds and rotates a plurality of magnetic disk plates, characterized in that an air cleaning filter is disposed between each of the magnetic disk plates.