JPS6052991A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To increase a dust removing effect by a space of the necessary minimum by providing a flow blocking plate between the upper and lower inside surfaces of a disk and a magnetic disk chamber, and on the opposite side of a filter for placing a flow conducting plate between, between the disk and the disk. CONSTITUTION:A flow conducting plate 4 is provided along the outside circumference of a magnetic disk 2, and an air filter 3 is placed between the flow conducting plate 4 and the corner part of a magnetic disk chamber 1. According to this structure, the quantity of air passing through the air filter of a high resist- ance is not obtained sufficiently, and dust is not filtered sufficiently. Therefore, flow blocking plates 5, 6 are provided between the uppermost and lowermost faces of the disk and the inside surface of the magnetic disk chamber, and between the disk and the disk, respectively. The resistance between the upper and lower faces of the disk becomes high by the flow blocking plates 5, 6, therefore, the quantity of air passing through the air filter 3 increases relatively. Accordingly, a dust removing effect is increased by a space of the necessary minimum.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk device that efficiently purifies the air inside a magnetic disk chamber.

In a fixed magnetic disk drive, an air filter is installed in order to remove dust from the inside of a sealed magnetic disk chamber, and a method is used in which the dust is filtered out by an air flow circulating inside the chamber.

However, in recent years, magnetic disk drives have become more compact and there is less room left inside the drive, making it difficult to select the shape and dimensions of the filter and the installation location.

One such conventional example is shown in FIG. In FIG. 1, a flow guide plate 4 is provided along the outer periphery of the magnetic disk chamber 2, and an air filter 3 is provided between the flow guide plate 4 and the corner of the magnet disk chamber 1.
Allocate 1. ing. As the disk rotates, the air between the tinook surfaces circulates and moves outward (9. In the new example of the outer periphery, the flow is the fastest rotational flow. In this conventional example, the air flow is directed to the air by the flow guide plate 4. The direction of the free flow is shown by an arrow.The rotation of the disk is counterclockwise.

However, in this example, there is a drawback that the air 9 that follows the high resistance 3 air filter cannot be removed sufficiently, and the dust cannot be sufficiently filtered out. Figures 1 to 4 are the same as in Figure 1.Cold current plates 5 and 6 are provided between the top and bottom surfaces of the disks and the inner surface of the magnetic disks, and between the disks. In this embodiment, the role of the flow guide plate 4 is the same as that of the conventional example shown in Fig. The amount of air passing through filter 3 becomes the torch.

As described above, the present invention provides a magnetic Dinuk device that has a large dust removal effect even though the air filter is installed in the minimum required space.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a conventional magnetic Dinuk device;
FIG. 3 is a diagram showing an embodiment of the present invention. 1... Magnetic disk chamber 2... Magnetic disk 3,... Air filter 4... Current guide plate 5.6... Blocking plate J ! J-Sat applicant Suwa Seikosha Co., Ltd. Agent Patent attorney Saito Jutsu Affairs Figure 1 Figure 2L Figure 3

Claims (1)

[Claims] In a magnetic disk drive having an air filter in a sealed magnetic disk chamber, a flow guide plate is provided along the outer periphery of the disk, an air filter is provided outside the flow guide plate, and an air filter is provided between the disk and the upper and lower inner surfaces of the magnetic disk chamber. A magnetic disk device characterized in that a cold current plate is provided on the opposite side of a filter sandwiching a flow guide plate between a media disk and a disk.