JPH02187985A - Magnetic disk device - Google Patents

Abstract

PURPOSE:To reduce noise by preventing air inlet holes from being provided to a cabinet part opposite to the front surface of magnetic disk drive units. CONSTITUTION:Suction air from inlet holes 13 and 13' for cooled air provided to the upper surface and lower surface of a cabinet 11 is passed through a 1st air passage 14 on a side of the cabinet 11, and moreover passed through a 2nd passage 15 to be supplied to the front surface of each magnetic disk drive unit 12 housed and disposed in the cabinet 11, while discharged air from the rear surface of the unit 12 is released from an outlet hole 17 at the rear surface of the cabinet 11. By this method, since the inlet hole is not provided to the part of the cabinet which is opposite to the front surface of the units 12 and is apt to generate noise, the noise is not leaked out of the cabinet 11, and hence the noise can be reduced.

Description

[Detailed Description of the Invention] [Summary] The present invention relates to a magnetic disk device used as an external storage device of a computer system, and aims to reduce the noise of the magnetic disk device without impairing the cooling effect of the magnetic disk device. In a magnetic disk drive in which a plurality of magnetic disk drive units are housed and arranged in a cabinet, the magnetic disk drive units are independent so that cooling air is taken in from the front side and exhausted from the rear side. The cabinet is provided with intake ports for cooling air on its upper and lower surfaces, and a first air passage through which air taken in from these intake ports is provided on at least one side surface. A 20th air passage is provided through which the air passing through the first air passage is taken in from the front surface of each of the magnetic disk drive units, and an exhaust port is further provided on the rear surface of the cabinet. This is a magnetic disk device characterized by the following.

[Industrial application field]

The present invention relates to a magnetic disk device used as an external storage device for a computer system.

In recent years, with the spread of computer systems, magnetic disk drives as a storage device for computer systems installed in offices have also tended to have higher density and larger capacity.
Therefore, there is a need to reduce the noise generated by magnetic disk drives.

Therefore, without compromising the cooling efficiency of the magnetic disk device,
It is necessary to reduce the noise of magnetic disk drives.

[Conventional technology]

FIG. 4(A) is a front view showing the inside of a cabinet constituting a conventional magnetic disk device with the cover removed, and FIG. 4(B) is a right side view of the same. A disk enclosure medium 2 forming a drive unit, a control unit 3, and a power supply unit 4 are housed in a vertical direction via a shelf.

An air filter 6 is provided between the cooling air intake port 5 provided on the lower surface of the cabinet 1 and the power supply unit 4, and an air blower 7 is provided between the power supply unit 4 and the disk enclosure middle 2. A blower device 7' is provided between an exhaust port 8 provided on the top surface of the cabinet 1 and the control unit 3.

That is, in this conventional magnetic disk device,
The structure is such that cooling air is taken in through a cooling air intake port 5 provided on the bottom surface of the cabinet 1, and exhausted through an exhaust port 8 provided on the top surface of the cabinet 7)1.

Although not shown, in other conventional magnetic disk drives, the cooling air inlet provided at the front of the cabinet is opposed to the front of the magnetic disk drive unit housed in the cabinet, and the magnetic disk drive・The structure was such that the rear of the unit faced the exhaust port provided on the rear of the cabinet.

[Problem to be solved by the invention]

However, in the former conventional example, where cooling air is taken in through the intake port provided on the bottom surface of the cabinet that makes up the magnetic disk drive and exhausted from the exhaust port provided on the top surface of the cabinet, the cooling air is stored vertically. The cooling effect deteriorates because the air passes through the installed magnetic disk drive units one after another.

In addition, in the latter conventional example, the intake port provided on the front of the cabinet, the exhaust port provided on the rear surface, and the magnetic disk
By arranging the front and rear surfaces of the drive unit to face each other directly, the noise generated by the magnetic disk drive unit can be directly exited from the cabinet through the intake port on the front of the cabinet or the exhaust port on the rear of the cabinet. However, there was a problem that the noise level increased.

The present invention was devised in view of the above-mentioned problems, and an object of the present invention is to reduce the noise of a magnetic disk device without impairing the cooling effect of the magnetic disk device.

[Means to solve the problem]

As a means for solving the above-mentioned problems, the present invention provides a magnetic disk device in which a plurality of magnetic disk drive units are housed and arranged in a cabinet, in which the magnetic disk drive (secondary) comprises: An independent blower is provided to suck in cooling air from the front surface and exhaust it to the rear surface. a first air passage through which air taken in from the intake port passes, and a second air passage through which the air passing through the first air passage is taken in from the front surface of each of the magnetic disk drive units; This magnetic disk device is characterized in that it is further configured by providing an exhaust port on the rear surface of the cabinet.

[Effect]

According to the present invention, with the above-described configuration, the air taken in from the cooling air intake ports provided on the upper and lower surfaces of the cabinet passes through the first air passage provided on the side surface of the cabinet, and further passes through the second air passage provided on the side surface of the cabinet. Air is supplied to the front of each magnetic disk drive unit housed in the cabinet through the air passages in the cabinet, and is exhausted to the rear of each magnetic disk drive unit through the exhaust port provided at the rear of the cabinet. is discharged from.

Because the cooling air is configured to flow through this distribution route, there is no intake port in the part of the cabinet that faces the front of the magnetic disk drive unit, which is housed in the cabinet and tends to generate noise. So,
Noise generated by the magnetic disk drive unit no longer leaks out of the cabinet, making it possible to significantly reduce the noise.

Furthermore, the cooling conditions for each of the plurality of magnetic disk drive units housed in the cabinet are the same, so that the cooling effect of the magnetic disk device is not impaired.

〔Example〕

FIG. 1(A) is a schematic configuration diagram of a magnetic disk device of the present invention, FIG. 2 is a diagram showing an embodiment of the magnetic disk device of the present invention, FIG. 3 is a cross-sectional plan view of the same, and 11 The cabinet 11 constituting this magnetic disk device is shown as an imaginary line, and a plurality of magnetic disk drive units 12 are housed in the cabinet 11 in a vertical direction via shelves.

As shown in FIG. 1(B), this magnetic disk drive unit 12 includes a disk enclosure 12a.
It is formed by a control unit 12b and a power supply unit 12c, and sucks cooling air from its front face 12d.
An independent blower device 12f is provided to discharge air to the rear surface 12e.
has been established.

The cabinet 11 is provided with cooling air intake ports 13 and 13' on its upper and lower surfaces, and has small (
A first air passage 14 is provided between one side surface 11a and each magnetic disk drive unit 12, and the cooling air passing through this first air passage 14 flows into the cabinet 11.
Magnetic disk drive unit 1 housed in
A second air passage 15 is provided between the front face 12d and the front face 11b of the cabinet 11 so as to be supplied to the front face 12d of the cabinet 11, and between the first and second air passages 14 and 15. is the air filter 16 as shown in FIG.
is provided.

Furthermore, an exhaust port 17 is provided on the rear surface 11c of the cabinet 11 so that the air exhausted from the rear surface 12e of each of the magnetic disk drive units 12 is discharged to the outside of the cabinet 11.

Note that it is convenient for internal inspection work to use the front surface 11b of the cabinet 11 as a front door and the rear surface 11c as a rear door.

Further, reference numeral 18 shown in FIG. 2 is a shelf for storing and arranging each of the magnetic disk drive units 12 in the cabinet 11 in the vertical direction.

Since this magnetic disk device is configured as described above, the air taken in through the cooling air intake ports 13 and 13' provided on the top and bottom surfaces of the cabinet 11 (7) flows into the side surface of the cabinet 11. The air is supplied to the front surface 12d of each magnetic disk drive unit 12 housed in the cabinet 11 through the provided first air passage 14 and further through the second air passage 15, and is supplied to the front surface 12d of each magnetic disk drive unit 12 housed in the cabinet 11. - The air exhausted from the rear surface 12e of the unit 12 is exhausted from the exhaust port 17 provided at the rear surface of the cabinet 11.

Note that in this embodiment, the air passage 14 is provided only on one side of the cabinet 11;
Such air passages may be provided on both side surfaces of 1.

In addition, air filters (not shown) are provided in the intake ports 13 and 13' provided on the upper and lower surfaces of the cabinet 11, and air filters (not shown) are provided on the front surface 12d of the magnetic disk drive unit 12. It is recommended to provide a filter.

〔Effect of the invention〕

As explained above, the magnetic disk device of the present invention has
There is no air inlet in the part of the cabinet that faces the front of the magnetic disk drive unit, which tends to generate noise, so the noise generated by the magnetic disk drive unit is not emitted outside the cabinet. It has the effect of greatly reducing noise.

In addition, since cooling air is drawn in from the front of each of the multiple magnetic disk drive units housed in a cabinet under the same conditions at the same time, the cooling conditions for each magnetic disk drive unit are the same, and the magnetic disk drive Since it does not impair the cooling effect of the magnetic disk drive, it greatly contributes to improving the performance of magnetic disk drives.

[Brief explanation of the drawing]

FIG. 1(A) is a perspective view schematically showing an embodiment of a magnetic disk device of the present invention, and FIG. 1(B) is a perspective view of a magnetic disk drive housed in a cabinet constituting this magnetic disk device.・A perspective view of the unit, FIG. 2 is a diagram showing an embodiment of the magnetic disk device of the present invention, FIG. 3 is a cross-sectional view of the same, and FIG. 4 (A) is a diagram of a cabinet constituting a conventional magnetic disk device. It is a front view showing the inside with the cover removed, and (B) is a right side view of the same. 11...cabinet, 11a...side, 11
b...front, 11c...rear, 12...
Magnetic disk drive unit, 12a... Disk enclosure, 12b... Control unit, 12
c...power supply unit, 12d...front,
128... Rear surface, 12f... Air blower, 13.13'... Cooling air intake port, 14.15...
・Air passage, 16...Air filter, 17...Exhaust port, 18...Shelf.

Claims (1)

[Scope of Claims] In a magnetic disk device in which a plurality of magnetic disk drive units (12) are housed and arranged in a cabinet (11), the magnetic disk drive unit (12) has a front surface (12d). ) to intake cooling air from the rear surface (12e).
The cabinet (11) is provided with cooling air intake ports (13), (13') on its top and bottom surfaces, and has cooling air inlets (13), (13') on its top and bottom surfaces. A first air passage (14) is provided in the side surface (11a) through which air taken in from these intake ports (13) and (13') passes, and this first air passage (14)
A second air passage (15) is provided through which the air passing through the magnetic disk drive unit (12) is sucked in from the front surface of each magnetic disk drive unit (12), and an exhaust port is provided on the rear surface (11c) of the cabinet (11). A magnetic disk device characterized in that it is configured by providing (17).