JPH027283A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To rapidly and easily perform the exchange and cleaning of a filter by mounting the filters for respiring an outer layer and an inner layer at the outer wall aperture part of the sealed structure part of a magnetic disk device, and mounting the filter for respiring the outer layer out of them loadably/ unloadably. CONSTITUTION:The filter 3 for respiring the inner layer is mounted fixedly on an outer wall 1, and the filter 2 for respiring the outer layer facing the air is mounted loadably/unloadably on the outer wall 1. The air from which dust is eliminated by the outer layer filter 2 passes the inner layer filter 3, and is filtered, and the air cleaner than even is introduced to the inside. In a state where stuffing is generated in the outer layer filter 2, the outer layer filter 2 can be removed easily and cleaned or exchanged since it is set loadably/ unloadably. In such a case, the dust is prevented from invading from the inner layer filter 3 mounted fixedly, and it is possible to perform a countermeasure for the stuffing of the filter 2 for respiration, etc., rapidly and easily even not in environment such as a specific clean room, etc. In such a way, the filter can be rapidly and easily exchanged or cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk drive, and more particularly to a magnetic disk drive having a breathing filter provided for introducing clean outside air into the drive.

[Conventional technology]

Generally, a magnetic disk drive is hermetically housed within a case (outer wall) to isolate and protect the internal device from external dust. An opening is provided in the outer wall for communication with outside air, and clean outside air is introduced through a breathing filter attached to this opening.

In conventional magnetic disk drives of this type, the breathing filter is fixedly attached to the outer wall and cannot be easily removed.

[Problem to be solved by the invention]

Therefore, when the breathing filter becomes clogged due to long-term use or use in a dusty environment, it is difficult to take prompt action because it cannot be easily replaced. Furthermore, even if removal and replacement were possible, it would be necessary to work under special conditions such as inside a clean room facility in order to protect the internal equipment from the intrusion of dust from the outside air, and it would still be difficult to respond quickly. Ta.

[Means to solve the problem]

In the present invention, an outer layer and an inner layer breathing filter are attached to the outer wall 08 of the sealed structure of a magnetic disk drive, and the outer layer breathing filter is detachably attached.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a partial sectional view of an outer wall of an embodiment of the present invention.

Referring to FIG. 1, the magnetic disk drive is hermetically housed inside an outer wall 1. As shown in FIG. A two-layer filter consisting of an outer breathing filter 2 and an inner breathing filter 3 is attached to an opening provided in the outer wall 1. The inner breathing filter 3 is fixedly attached to the outer wall l, and the outer breathing filter 2 facing the outside air is detachably attached to the outer wall 1. The outside air from which dust has been removed by the outer layer filter 2 is filtered through the inner layer filter 3, and cleaner outside air is introduced into the interior.

Considering the state where the outer layer filter 2 is clogged with outside air and dust, the outer layer filter 2 is removable and can be easily removed for cleaning or replacement. In this case, there is no room for dust to enter the interior due to the fixedly attached inner layer filter 3. Therefore, it is possible to quickly and easily deal with clogging of the breathing filter, etc., even in a special environment such as a lean room.

[Effect of idea]

As explained above, in the present invention, a two-layer breathing filter is attached to the outer wall opening where the main part of the magnetic disk is hermetically housed, with the outer layer removably attached and the inner layer filter fixed. Even if the breathing filter becomes clogged, you only need to replace the removable outer layer filter, and during replacement, the inner layer protects the internal equipment from dust, making filter replacement quick and easy. , has the effect of cleaning.

[Brief explanation of the drawing]

FIG. 1 is a partial cross-sectional view of the present invention.

Claims (1)

[Claims] In a magnetic disk drive sealed by an outer wall, a two-layer breathing filter consisting of an outer layer filter and an inner layer filter is provided in an opening provided in the outer wall, and the inner layer filter is fixedly attached to the outer wall portion. . A magnetic disk having an absorption filter, wherein the outer layer filter is detachably attached.