JPH0247115B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a magnetic disk storage device, and particularly to a magnetic disk storage device that can reduce noise and is suitable for forced cooling using a fan, blower, etc. It is.

[Background of the invention]

Regarding the housing structure of a magnetic disk storage device that incorporates a plurality of magnetic disk assemblies that require forced cooling, Japanese Utility Model Application No. 58-77891 discloses a structure in which a plurality of magnetic disk assemblies are isolated within a housing, and A structure has been proposed in which air is sucked into each isolated room through the same entrance. This realizes a simplified air system structure for cooling the plurality of built-in magnetic disk assemblies to the same level.

Here, according to the known example, the air heated by the magnetic disk assembly is collected from each of the isolated rooms into a discharge chamber at the other end, and a discharge fan provided at the upper part of the discharge chamber; It is discharged outside the device by a blower, etc.

However, when the overall height of the device is the same as or lower than the operator, no consideration has been given to reducing the effect of the noise generated by the exhaust fan on the operator, that is, reducing the noise.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic disk storage device that overcomes these conventional drawbacks, can reduce noise, and has improved maintainability.

[Summary of the invention]

In order to achieve the above object, the present invention incorporates a plurality of magnetic disk assemblies consisting of magnetic disks, magnetic heads, and linear motors that require forced cooling air flow inside the same casing equipped with a door. The magnetic disk storage device is characterized in that the door has an obstacle that obstructs the flow direction of the forced cooling air flow, and a duct that has a flow path that goes around behind the obstacle. .

[Embodiments of the invention]

First, the principle of the present invention will be explained.

When a plurality of magnetic disk assemblies that require forced cooling are installed in a magnetic disk storage device, an open/close structure is required to enable maintenance of built-in components including the magnetic disk assemblies. Furthermore, from the viewpoint of maintainability, it is necessary to mount a plurality of magnetic disk assemblies in a planar arrangement when viewed from the front or rear of the magnetic disk storage device.

On the other hand, when a plurality of magnetic disk assemblies are arranged in a plane as described above, in order to avoid the influence of temperature from adjacent magnetic disk assemblies, the wind for forced cooling of the magnetic disk assemblies is directed to the magnetic disk storage device. It must be designed to flow in the front-back direction.

In addition, in order to downsize the magnetic disk storage device, it is necessary to downsize the fan or blower for forced cooling, and to flow cooling air under the pressure of the downsized fan or blower, the cooling air path has low pressure loss. It is effective to create a straight flow path.

For these reasons, a structure may be considered in which the magnetic disk assembly cooling air is taken in from the front or rear surface of the magnetic disk storage device and exhausted from the other surface.

Here, there arises a need to reduce noise from the front and rear openings of the magnetic disk storage device, especially noise from the side near where the fan or blower is mounted.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a magnetic disk storage device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view of a magnetic disk storage device according to an embodiment of the present invention.

In Figures 1 and 2, 1 is the frame, 2 is the front door, 2a is the intake port, 3 is the rear door, 3a is the rear door outlet, 4 is the filter, 5 is the gasket, 6 is the gasket, and 7 is the sub. frame, 7a is a subframe intake port, 8 is a magnetic disk assembly, 9 is a circuit board, 1
0 is a fan, 11 is a front door duct, 11a is a front door duct inlet, 12 is a rear door duct, 12a is a rear door duct outlet, 12b is a sound insulation plate, 13 is a sound absorbing packing, 14 is an air circulation prevention plate, 15a is outside air, 15
b is purified outside air, 16a is hot air accompanied by noise, and 16b is hot air with reduced noise.

One or more subframes 7 are fixed to the frame 1 in a mechanically stable state, and the subframe 7 includes a magnetic disk assembly 8 consisting of a magnetic disk, a magnetic head, and a linear motor; A circuit board 9 and a fan 10 for driving the assembly 8 are fixed. Further, the subframe 7 includes a subframe inlet 7a and a subframe outlet 7b.

Further, a front door 2 and a rear door 3 having an openable/closable structure are stably and reliably fixed to the frame 1, and the gaps between the front door 2 and the rear door 3, respectively, are fixed to the frame 1.
It is sealed by a gasket 5 fixed to.

The front door 2 has a front door duct 11 to which one or more filters 4 corresponding to the number of filters 4 can be attached at positions facing the subframe 7.
It is fixed with no gaps. The front door 2 has an intake port 2a, and the front door duct 11 has a plurality of front door duct intake ports 11a.

If the subframe 7 is not installed, an air circulation prevention plate 14 is attached to the front door duct intake port 11a facing the relevant position to ensure that the warmed air inside the device is reused for cooling. It is prevented.

A rear door duct 12 to which a sound absorbing gasket 13 is attached is fixed to the rear door 3. Rear door duct 1
2 is a sound insulating plate 12b and a plurality of rear door duct discharge ports 1
It is equipped with 2a. The rear door 3 also includes a rear door outlet 3a.

A patch 6 is attached to the subframe 7,
The gap with the filter 4 is sealed.

Next, the noise reduction operation will be explained.

When the fan 10 is operated, outside air 15a passes through the suction port 2a and the front door duct suction port 11a, is filtered by the filter 4, and is taken into the subframe 7 as clean outside air 15b through the subframe suction port 7a. It will be done.

The outside air 15b cools the magnetic disk assembly 8 and the circuit board 9 while passing through the subframe 7, becomes hot air 16a, and is discharged outside the subframe 7 from the subframe exhaust port 7b by the fan 10.

Hot air 1 with noise discharged by fan 10
6a is sound-absorbed by the sound-absorbing packing 13, and is further sound-insulated by the sound-insulating plate 12b.

Due to the operation of the fan 10, the pressure inside the frame 1 is higher than that outside the frame 1, so the hot air 16a is passed through the rear door duct outlet 12a and the rear door outlet 3a to the hot air 16b with reduced noise.
It flows out as.

In this way, according to this embodiment, the fan 10
The noise of the hot air 16a discharged by the noise is reduced by the sound insulating plate 12b and the sound absorbing packing 13. In addition, the cooling air passing through the subframe 7 is discharged by the fan 10 as hot air 16a accompanied by noise, and the conduit is connected to the front door 2,
Since it is sealed by the front door duct 11, the filter 4, the gasket 6, and the subframe 7, only the outside air 15a flows in, and the heated air inside the device is not included, resulting in high cooling efficiency.

Furthermore, by opening or removing the front door 2 and rear door 3 during maintenance work, including replacing parts inside the frame 1, there will be no obstacles to the work, making maintenance work easier. .

〔Effect of the invention〕

As described above, according to the present invention, it is possible to realize a magnetic disk storage device that can reduce noise and improve maintainability.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a magnetic disk storage device showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of the magnetic disk storage device showing an embodiment of the invention. 1: Frame, 2: Front door, 3: Rear door, 4: Filter, 5, 6: Packaging, 7: Subframe,
8: Magnetic disk assembly, 9: Circuit board, 10:
Fan, 11: Front door duct, 12: Rear door duct,
13: Sound absorbing packing, 14: Air circulation prevention plate, 1
5: Outside air, 16: Hot air.

Claims (1)

[Claims] 1. In a magnetic disk storage device in which a plurality of magnetic disk assemblies each including at least a magnetic disk and a magnetic head are mounted in the height direction of a casing, each of the magnetic disk assemblies is provided with a forced cooling fan, A first door equipped with an inlet, a duct, and a filter for sucking air from the outside by the rotation of the fan is provided on a first side, and a second side of the casing facing the first door is provided with a first door. A second door is provided, which includes an exhaust port that discharges air inside the housing by rotation of the fan, a duct fixed to cover the exhaust port, and a sound insulating plate provided on a side of the duct facing the fan. , and the first and second doors can be opened and closed. A magnetic disk storage device.