JPS61196494A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To prevent dust generated from an actuator or the like from intruding into a space in which a magnetic disk is present by connecting the space and an another section only with two holes and disposing a filter in the inlet side of the air to the disk. CONSTITUTION:The disk 1 and spoiler 2 are separated by a partition 3 into a linear type carriage 4 and an actuator 5. In the partition 3, two openings 6 and 7 are disposed. the opening 6 is positioned at just near to the spoiler and opened at the upperstream side of the spoiler 2 and the other opening 7 is positioned at just near and downstream of the spoiler. To the opening 7, an air filter 8 is attached. When the disk 1 rotates clockwise in Fig. 1, the air flows out to an disk section from the opening 6, passes through the filter 8 of the opening 7 and flows into a space in which the disk accommodated. thereby, the dust generated by contacting the disk 1 and the head flow out the space in which the disk is accommodated.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a magnetic disk device, and particularly relates to a magnetic disk device,
The present invention relates to a magnetic disk device that integrally seals a magnetic head and an actuator to remove dust from the air.

[Background of the invention]

In a magnetic disk drive, the magnetic head is levitated over the magnetic disk by a viscous flow of air on the order of several microns, and in this state the magnetic head performs a seek operation in the radial direction of the magnetic disk. Therefore, if there is dust in the air, Dust may enter between the magnetic disk and the magnetic head, causing an accident with the head crank 1, etc.

In particular, magnetic disk drives equipped with so-called linear actuators that move the magnetic head linearly move the carriage that supports the magnetic head in a straight line on guide rails, which causes wear between the wheels and the rails and magnetism. There is a possibility that dust is generated due to the sliding motion between the head and the magnetic disk, resulting in the above-mentioned throat crash.

In conventional magnetic disk devices, for example,
Publication No. 101172 (011B25104) K There is a device as shown in which an air filter is provided in a shroud that houses a magnetic head, a magnetic disk, and an actuator to remove dust inside the shroud. However, in such a magnetic disk device, dust generated by the actuator and sliding passes through the space containing the magnetic disk and is captured by the air filter, so that it enters the minute gap between the magnetic head and the magnetic disk, It is impossible to fundamentally solve Henodo crush 1 etc.

[Purpose of the invention]

An object of the present invention is to provide a magnetic disk device in which dust generated from actuators and the like does not enter a space where a magnetic disk exists.

[Summary of the invention]

In conventional magnetic disk drives, the space where the disk exists and the space where the actuator etc. exist are not separated, and dust generated from the actuator's bearings and guides adheres to the surface of the disk, causing problems between the head and the disk. Has a detrimental effect on stable floating.

Completely isolating the space containing the disks from the actuator is not easily achieved because the magnetic head must be inserted between multiple disks and must be moved at high speed. .

Further, dust is generated when the disk and head come into contact, and this dust also needs to be removed.

In the present invention, in order to solve these problems, the space where the disk exists and the other parts are connected by just two holes, one being an air outlet and the other being an air inlet. A filter is installed on the air inlet side (to the disk) to remove harmful dust. Further, a spoiler is provided to guide the air from the disk storage space to the actuator storage space.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG.

The magnetic disk device according to this embodiment has a disk 1 on the bottom plate.
are stacked on the same axis and rotated, and a spoiler 2 is provided between the discs 10 in a substantially radial direction. The disk 1 and the spoiler 2 are separated from the linear carriage 4 and the actuator 5 by a partition wall 3. Bulkhead 3
has two holes 6 and 7 drilled in it. A hole 6 is drilled in the immediate vicinity of the spoiler and upstream of the spoiler 2, and another hole 7 is bored in the immediate vicinity of the spoiler and downstream.

An air filter 8 is attached to the hole 7. The hole 6 also serves as an insertion hole for the magnetic helad arm 9. When the disk 1 rotates clockwise in the figure, air flows out of the disk portion from the hole 6 due to the presence of the spoiler 2, passes through the filter 8 of the hole 7, and flows into the disk storage space. To prevent backflow of air, the hole 6 is narrow enough to allow the helad arm to pass through.

With such a structure, air flows out of the hole 6 regardless of the radial position of the head arm and rarely flows back. Therefore, dust generated by contact between the disk 1 and the head flows out of the disk storage space. Furthermore, since the air flowing into the disc storage space is filtered by the filter 8, clean air is always supplied to the disc storage space. Dust generated in the actuator storage space is also prevented from entering the disk storage space from around the head arm 9, and is filtered through the filter 8.
caught by.

In this way, the disk part can always be kept clean.

Furthermore, according to this embodiment, during the process of assembling the magnetic disk device, the disk storage section can be easily isolated from the outside air by blocking the assembly hole 7.
Less chance of unnecessary exposure to dust.

FIG. 2 is a diagram showing another embodiment of the present invention.

The basic structure is similar to the embodiment shown in FIG. 1, but the spoiler 20 is oriented in a direction that allows air to easily flow, and a cylindrical flow path 3a is provided in the hole 6.7 provided in the partition wall 3. Allows air to flow smoothly.

〔Effect of the invention〕

According to the present invention, it is possible to easily prevent dust generated from the actuator storage space from entering the disk storage space, and it is also possible to easily remove dust generated by the disk and head. .

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a magnetic disk device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a magnetic disk device according to another embodiment of the present invention. Death: Magnetic disk, 2 and 20: Spoiler, 3: Bulkhead, 4: Carriage, 5: Actuator, 6 ...hole, 7 ... hole, 8 ... air filter, 9
...head arm.

Claims (1)

[Claims] A magnetic disk rotationally driven by a spindle, a magnetic head for recording and reproducing data on the magnetic disk, an actuator for causing the magnetic head to perform a seek operation on the magnetic disk, and the magnetic disk. , a magnetic disk drive including a shroud that surrounds a magnetic head and an actuator, a first space containing the magnetic disk and magnetic head and a second space containing an actuator are separated, and the actuator intrudes into the first space. a partition wall having a first hole connecting the second space and the first space; a partition wall provided in the second hole of the partition wall; A magnetic disk drive comprising: a filter for removing dust from gas flowing into a space of the magnetic disk drive.