JPH08273269A - Cluster type magnetic disk device - Google Patents

Abstract

PURPOSE: To reduce the influence of heat generated inside a device. CONSTITUTION: A cluster type magnetic disk device is provided with a plurality of disk modules 1 composed of a drive unit 2 having a magnetic disk, a control substrate 3 for controlling the operation of this drive unit 2 and a chassis 4 having this drive unit 2 and the control substrate 3 integrally provided. In the cluster type magnetic disk device having a casing 5 for housing these disk modules 1 in a row in up and down directions, the drive units 2 in the chassis 4 adjacent one another in the up and down directions are arranged in different positions as a whole in the chassis 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collective magnetic disk device, and more particularly to a collective magnetic disk device used as an external storage device of an information processing device.

[0002]

2. Description of the Related Art A conventional collective type magnetic disk device comprises a drive unit having a magnetic disk, a control board for controlling the operation of each part of the drive unit, and a chassis for accommodating the drive unit and the control board integrally. A housing having a plurality of disk modules and accommodating the disk modules in a row in the vertical direction is provided.

In this conventional collective type magnetic disk device, a plurality of disk modules are fixed by plug-in mounting on a main board fixed in an upright state inside a housing.

Each disk module has a drive unit fixed to the same position on the control board inside the housing. In such a case, when these disk modules are mounted in the vertical direction, when viewed from directly above, Each drive unit is in the same position.

[0005]

The collective magnetic disk drive is normally set in a usable temperature range, and its use is restricted under other temperature conditions. In particular, it is strictly forbidden to use at high temperature, and even within the usable temperature range, continuous operation in the high temperature range will cause shortening of life and failure, and error of reading and writing operation of magnetic disk. It is said that it is not so preferable because it causes such problems as described above, and it is desired to use it at an ambient temperature as low as possible.

However, there is a problem in that the plurality of drive units themselves provided in the collective magnetic disk device serve as heat generating sources, and the heat generated from the drive units is accumulated inside the housing. On the other hand, a fan has been provided as a cooling means in the housing to generate an air flow from the bottom to the top.

However, as described above, in the conventional collective type magnetic disk device, since the disk modules having the drive units are arranged in a row in the vertical direction, the heat generated from the drive unit of the disk module below is generated. Has risen and is directly exposed to the drive unit of the disk module arranged immediately above.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a collective type magnetic disk device which can improve the disadvantages of the conventional example and can reduce the influence of heat generation from the inside of the device.

[0009]

According to a first aspect of the present invention, there is provided a drive unit having a magnetic disk, a control board for controlling operation of the drive unit, and a chassis integrally provided with the drive unit and the control board. In a collective magnetic disk device having a plurality of disk modules each consisting of, and housings for storing the disk modules in a row in the vertical direction, each drive unit in each chassis vertically adjacent to each other is The configuration is such that they are placed at different positions as a whole.

According to the present invention of claim 2, in addition to the structure of the present invention of claim 1, a plurality of disk modules arranged in a row in the vertical direction are arranged in a plurality of rows in the lateral direction. The composition is adopted.

According to a third aspect of the present invention, in addition to the configuration of the second aspect of the present invention, the drive units in the laterally adjacent chassis are arranged at different positions in the chassis. I am collecting.

The above-mentioned configurations are intended to achieve the above-mentioned object.

[0013]

A plurality of disk modules each including a drive unit equipped with a magnetic disk, a control board for controlling the operation of each part of the drive unit, and a chassis accommodating the drive unit and the control board are integrated into a collective magnetic disk device. Inside the housing, they are arranged in a line in the vertical direction.

When the collective magnetic disk device receives an operation command signal from an external information processing device, each disk module controls the drive of each part of the drive unit by the control board to read / write information from / to the magnetic disk. Done.

As the above-described operation is repeated, heat is generated from the drive source of each drive section of each drive unit. The heat generated at this time moves upward from the periphery of the drive unit and reaches each of the other disk modules immediately above and adjacent to each disk module.
At this time, in any two disk modules that are in a vertical relationship with each other, since drive units are arranged at different positions in each chassis, the heat generated from the lower drive unit directly affects the heat generated directly above the drive unit. The generated heat moves further upward while being deprived of the temperature by the surroundings without being exposed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIGS. FIG.
FIG. 2 is an explanatory view of the internal structure of the collective magnetic disk device according to the present embodiment with a part thereof omitted as viewed from the front, and FIG. 2 is an explanatory view of the internal structure as viewed from the side.

The collective magnetic disk device shown in FIGS. 1 and 2 includes a drive unit 2 having a magnetic disk, a control board 3 for controlling the operation of the drive unit 2,
A plurality of disk modules 1 including a drive unit 2 and a chassis 4 integrally equipped with a control board 3
And a main board 6 on which the respective disk modules 1 are mounted so as to form a plurality of rows in the vertical direction,
The housing 5 accommodates the main board 6 together with the plurality of disk modules 1.

More specifically, first, the drive unit 2 includes a rotatable spindle on which a plurality of magnetic disks are fixed coaxially, and a plurality of magnetic heads for reading and writing information on each of these magnetic disks. An arm member having a tip, a spindle motor for urging the spindle to rotate, a voice coil motor for urging the arm member to rotate to position the magnetic head, and the above-mentioned configuration It is mainly composed of a box body that is equipped and stored as a unit.

The drive unit 2 is fixedly mounted on the control board 3, and the control board 3 is provided with terminals that are electrically connected from the inside of the box of the drive unit 2 to the outside.
Is in electrical communication with. The control board 3 controls the drive of the spindle motor, voice coil motor, etc. of the drive unit 2 described above. In addition to the main board 6 described later, it also serves as a communication path for information signals to an information processing device outside the collective magnetic disk device.

Further, as shown in FIG. 2, the control board 3
Has a lateral length slightly larger than that of the drive unit 2 by a factor of two.
As shown in A, the drive unit 2 is provided on the left end side on the control board 3.
And two types of disk modules 1 such as a disk module 1B equipped with a drive unit 2 on the right end side on the control board 3 are formed.

The chassis 4 is a box-shaped container in which the drive unit 2 and the control board 3 are installed and housed.
Ventilation slits and the like are provided to release the internal heat. Further, the chassis 4 may have a lattice-shaped skeletal structure made of a frameless structure. As a result, heat does not stay inside, and heat is sufficiently dissipated.

The main board 6 is formed in a flat plate shape, and is fixed in an upright state inside the housing 5. A plurality of receiving plugs 10 are fixedly mounted on the flat plate surface of the main board 6. An interface cable (not shown) is connected to the main board 6, and the interface cable extends to the outside of the housing 5 and is connected to an information processing device which is a higher-level device of the collective magnetic disk device. .

Here, the above-mentioned control board 3 has a conductive plug 9 at one end thereof, and the conductive plug 9 is provided so as to project to the outside of the chassis 4. The conduction plug 9 is the receiving side plug 1 mounted on the main board 6.
The disk module 1 is mounted on the main board 6 by mounting the conduction plug 9 on the receiving side plug 10.

In the present embodiment, the receiving side plugs 10 are provided on the flat plate surface of the main substrate 6 as shown in FIG. This is not limited to this number, and may be provided in a smaller number or a larger number as necessary.

At this time, the disk modules 1 are arranged such that the disk modules 1A and 1B are alternately arranged in the vertical direction. As a result, the drive units 2 in the vertically adjacent chassis 4 are arranged at different positions in the chassis 4 as a whole.

Regarding the horizontal arrangement of the disk modules, the disk modules 1A and 1B are alternately arranged. As a result, the drive units 2 in the laterally adjacent chassis 4 are arranged at different positions in the chassis 4.

Reference numeral 5 is a housing for accommodating the above-mentioned components inside. Fans are provided on the upper and lower parts of the housing 5, respectively. The fan 7 provided in the upper part sends out air to the outside of the housing 5, thereby preventing heat from being accumulated above the inside of the housing 5. Further, the fan 8 provided in the lower portion sends air from the outside of the housing 5 to the inside, thereby promoting the cooling effect by the external air, and together with the effect of the fan 7 in the upper portion, The internal air is circulated efficiently.

The operation of this embodiment will be described.

This collective magnetic disk device receives an operation command signal from an external information processing device, and in each disk module 1, the drive unit 2 by the control board 3 is used.
Drive control of each unit is performed, and information is read from and written to the magnetic disk.

As the above-described operation is repeated, heat is generated from the drive source of each drive section of each drive unit 2 and the like. The heat generated at this time moves upward from the periphery of the drive unit 1 and the disk modules 1
Each other disk module 1B immediately above A
To reach. At this time, since the drive units 2 are arranged at different positions in each chassis 4 of the arbitrary two disk modules 1A and 1B which are in the upper and lower positions relative to each other, the heat generated from the lower drive unit 2 is Without directly hitting the drive unit 2 located immediately above, it moves further upward while being deprived of temperature by the surroundings.

Further, the fans 7 and 8 provided on the upper and lower parts of the housing 5 cause a flow of air inside the housing 5 from the lower side to the upper side of the housing 5.

In this embodiment, the disk modules 1A and 1B are alternately arranged in the vertical direction. As a result, the drive units 2 in the vertically adjacent chassis 4 are placed in different positions in the chassis 4 as a whole, so that heat generated from the drive units 2 moves upward. To
Since the drive unit 2 of the disk module 1 located immediately above is not directly exposed to the heat,
It is possible to reduce the influence on the reading and writing operations of the magnetic disk.

Further, since the drive units 2 are alternately arranged at different positions in the vertical direction, the heat generation density is reduced to about half as compared with the case where the drive units 2 are arranged at the same position. In order to
The effect of heat on the top is reduced.

Also in the lateral direction, the disk modules 1A and the disk modules 1B are alternately arranged, so that each drive unit 2 in each chassis 4 adjacent in the lateral direction is different in each chassis 4. It will be in the state of being placed in the position. In this case, when the heat generated from the drive unit 2 is transferred laterally, the drive unit 2 of the disk module 1 located immediately beside
However, since it is not directly exposed to the heat, it is possible to reduce the influence on the read and write operations of the magnetic disk.

Here, inside the housing 5, a shelf for mounting the chassis 4 of the disk module 1 may be provided. In this embodiment, since the disk module 1 is formed only by connecting the conduction plug 9 and the receiving side plug 10,
By providing the shelf, it becomes possible to prevent the disc module 1 from coming off.

The chassis 4 serves the same purpose as the shelf described above.
The disk modules 1 are mounted in a stacked state in order from the lower one by forming a larger size and eliminating the gaps between the chassis 4, thereby stabilizing the mounted state. In this case, it is more preferable that only the lowest disk module 1 has a shelf below it.

A spacer may be inserted between the chassis 4 vertically adjacent to each other.

As described above, when means such as providing shelves inside the housing 5, arranging the chassis 4 in a laminated body, and providing spacers between the chassis 4 are adopted, instead of the main substrate 6, the disc is replaced. The control boards 3 of the module 1 may be connected by wiring or the like.

[0039]

According to the first aspect of the present invention, the drive units in the vertically adjacent chassis are arranged in different positions when viewed from above in the chassis, so that the drive units are different from each other. When the heat generated from the disk moves upward, the drive unit of the disk module located immediately above is not directly exposed to the heat, which suppresses the malfunction of reading and writing of the magnetic disk and has a long life. And maintainability can be improved.

Further, since the drive units are arranged at different positions in the vertical direction, the heat generation density is reduced as compared with the case where the drive units are arranged at the same position. The effect of heat on the is reduced.

Further, in the invention described in claim 2, since the configuration of the invention described in claim 1 is further arranged in a plurality of columns,
Since the number of drive units equipped in one magnetic disk unit is increased and the same effect as the invention according to claim 1 is provided, the influence of internal heat generation is reduced.

Further, in the present invention as set forth in claim 3, the drive units in the chassis adjacent to each other in the lateral direction are arranged at different positions in the chassis in the lateral direction. In this case, when the heat generated from the drive unit is transferred in the lateral direction, the drive units of the disk modules located immediately next to the drive unit are not directly exposed to the heat because the drive units are located at regular intervals. Therefore, it is possible to have the same effect as that of the present invention according to claim 1, and to effectively prevent the influence of heat generation inside the device with respect to a further increase in the number of mounted disk modules.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram showing an internal structure of a collective magnetic disk device as viewed from the front.

FIG. 2 is a schematic explanatory diagram showing the internal structure of the collective magnetic disk device as viewed from the right side surface direction.

[Explanation of symbols]

 1 disk module 2 drive unit 3 control board 4 chassis 5 housing

Claims (3)

[Claims] 1. A plurality of disk modules comprising a drive unit having a magnetic disk, a control board for controlling the operation of the drive unit, and a chassis integrally equipped with the drive unit and the control board, each disk module In a collective type magnetic disk device having a housing for accommodating modules in a row in the vertical direction, each drive unit in each chassis adjacent to each other in the vertical direction is arranged at a different position in each chassis as a whole. An aggregate type magnetic disk device. 2. The collective magnetic disk drive according to claim 1, wherein the plurality of disk modules arranged in a row in the vertical direction are arranged in a plurality of rows in the horizontal direction. 3. The collective magnetic disk drive according to claim 2, wherein the drive units in each of the chassis laterally adjacent to each other are arranged at different positions in each of the chassis.