JPS60107789A - Disc driving device - Google Patents

Abstract

PURPOSE:To increase the cooling effect and to attain low noise and miniaturization by providing a fan and a duct structure to the inside of a door and shifting relatively the installing position between the fan and the air intake. CONSTITUTION:The air intake 7 is provided to the door 12 and the duct 13 is fitted to the inside of the door 12. An air flow duct 16 is provided to a position facing oppositely to a head disc assembly 2 and the fan 3 is fitted to the position. Then the position between the fan 3 and the air intake 7 is shifted mutually. Moreover, a filter 5 for dust removal is locked to the inside of the door 12. The cooling air 9 is fed into the device via the air intake 7 and guided to the air flowing hole 16. The air 9 reaching the air flowing hole 16 is blown onto the head disc assembly 2 by the fan 3 and then exhausted from an exhaust 12. In this case, since the duct part 18 is shut completely from the closed space in the device, the cooling effect is improved. Moreover, miniaturization is attained by fitting incorporatedly the cooling mechanism to the door 12.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a cooling mechanism for a head disk assembly built into a disk drive device, and particularly to a cooling mechanism using a fan.

[Background of the invention]

As a means of increasing the reliability of the head disk assembly built into a disk drive device, there is a 'jf method for reducing the temperature of the head disk assembly.6 There are various cooling mechanisms for reducing the temperature. A cooling mechanism with high cooling performance is expensive, and the cooling mechanism itself has to be large in size, making it difficult to effectively utilize the space within the device. For example, there is a method in which the entire head disk assembly is covered with a cover and outside air is caused to flow between the head disk assembly and the cover using an external fan or the like. This method certainly has high cooling performance. However, since the entire head disk assembly is covered with a cover, the device inevitably becomes larger.

Therefore, a cooling method using external air is generally adopted in which cooling air is sent into the device using a fan or the like.

FIG. 1 shows a sectional view of a conventional disk drive device incorporating a cooling mechanism using external air.

The housing l of the disk drive device has a door 6 for maintenance and inspection,
A head disk assembly 2 is built into the housing 1 . The fan 3 is fixed near the head disk assembly 2 by a fan bracket 4 having air circulation holes 21. The door 6 is provided with an air intake lower and a duct 8.

Further, a filter 5 for removing dust is provided between the duct 8 and the fan bracket 4, and an air guide 19 is attached to the fill 5 side of the fan bracket 1-4.

As shown by the arrow in the figure, the cooling air 9 is taken into the device from the air intake lower, guided through the duct 8 to the filter 5, and after being cleaned and cleaned of dust, the cooling air 9 is sent to the head disk assembly by the fan 3. Sprayed on 2.

The cooling air 9 heated by cooling the head disk assembly 2 is discharged from the discharge port 12 . However, between the duct 8 and the filter 5 and between the filter 5 and the fan 3,
Because these components are installed separately in the door 6 and the housing 1, it is difficult to completely shield them, and the warm air circulation 10. Enter from. Therefore, this warm air circulation flow 1O
111 and cooling air 9 are blown together and blown onto the head disk assembly 2 by the fan 3, there is a drawback that the cooling efficiency of the head disk assembly 2 is reduced.

Further, the air intake lower and the fan 3 are disposed at opposing positions, and the noise generated by the fan 3 leaks straight from the air intake lower to the outside of the device, increasing the noise.

Furthermore, the cooling mechanism is 41! Since the components are provided separately in the door 6 and the casing 1, there is a limit to the miniaturization of the cooling mechanism, and there is a drawback that the space inside the casing 1 cannot be used effectively.

[Purpose of the invention]

The purpose of the present invention is to eliminate the drawbacks of the prior art as described above,
An object of the present invention is to provide a disk drive device equipped with a cooling mechanism that has a high cooling effect, reduces noise, and can be made smaller.

[Summary of the invention]

To achieve the above object, the present invention provides a cooling mechanism for a disk drive device that includes a fan and a dust filter material and is configured to take in outside air from an air intake port formed in a door. By providing a duct structure fitted with a dust filter material inside the door, cooling efficiency is improved, the cooling mechanism is made smaller, and the installation positions of the fan and the air intake port are made relative to each other. The unique feature is that by shifting the structure, it provides sound insulation and reduces noise.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 2 is a sectional view showing a disk drive device according to an embodiment of the present invention.

One or more head disk assemblies 2 are fixed in a mechanically stable state within the housing J, and further,
The door 12 is installed in a highly airtight state and can be opened and closed.

The door 12 is provided with an air intake lower, and a duct 13 is attached to the inside of the door 12. The duct 13 is provided with an air circulation hole 16 at a position directly facing the head disk assembly 2, and a fan 3 is attached at that position. As shown in the figure, in preparation for future expansion, air circulation holes 16 are provided in areas where the head disk assembly 2 and fan 3 are not installed, and unused air circulation holes 16 are provided.
is sealed with an air circulation prevention plate 17.

Further, a filter stopper 5 is fixed to the inside of the door 12, a filter 5 for removing dust is locked onto the filter stopper 5, and the upper part of the filter 5 is pressed against the door 12 by a filter holder 14. The filter holder 14 is removably installed in the duct 13 with a screw 22, and is used to bring the filter 5 into close contact with the door 12 and to guide the cooling air 9 to the position of the fan 3 by the duct 1-13 and the door 12. The duct portion 18 is configured as follows.

This duct part 18 includes an air intake lower and an air circulation hole 1.
A closed space is formed inside the device except for the part 6.

When the fan 3 is driven, its suction force causes cooling air 9
is taken into the device via the air intake lower and guided to the air circulation hole 16 by the duct portion 18. The cooling air 9 that has reached the air circulation hole 16 is blown onto the head disk assembly 2 by the fan 3, cools the head disk assembly 2, and then is discharged from the discharge port 12.

At this time, the duct part 18 is completely shielded from the closed space inside the device except for the duct part 18, and since the air in the closed space does not flow into the duct part 18, it is supplied to the fan 3 for cooling. The only air used is the cooling air 9 from outside the device, and the cooling effect can be improved.

In addition, duct 1 to section 18 (duct 13. filter holder 14)
etc.), a cooling mechanism consisting of a fan 3, a filter 5, etc.
2, the cooling mechanism can be downsized, the device can be downsized, or the space inside the device can be used effectively.

If you want to replace the filter 5 due to clogging, etc., use the third filter.
As shown in the figure, the door 12 is opened, the screws 22 are released, and the filter holder 14 is removed from the duct 13. Then, since the upper part of the filter 5 becomes an open space, the filter 5 or the replacement filter 5' can be easily taken in and out in the direction of the arrow 20.

FIG. 4 is a sectional view taken along the line A--A in FIG. 2.

In the embodiment shown in FIG.
Therefore, as shown in FIG. 4, only one fan 3 is provided corresponding to the head disk assembly 2. In preparation for expansion of the device, air circulation holes 16 for the fan are provided at locations other than the fan 3 installation location.
The air circulation hole 16 where no fan is installed is connected to the air circulation prevention plate 17.
This prevents warmed air used for cooling from entering the duct 13 and being reused for cooling.

As shown in FIG. 4, the installation position of the air intake lower provided on the door 12 is offset from the air circulation hole 16 in the height direction. Therefore, the noise generated from the fan 3 can be prevented from linearly leaking from the air intake lower to the outside of the device, and a sound insulation effect can be expected. Although this embodiment shows an example in which the fan 3 and the air intake lower are staggered in the height direction, the direction in which they are staggered is not limited to this direction. Here, it goes without saying that the air intake lower has a shape that does not impair the aesthetic appearance of the device.

〔Effect of the invention〕

As explained above, according to the present invention, the duct structure to which the fan and dust filtering material are attached is provided inside the door, and the installation positions of the air intake port formed in the door and the fan are relatively shifted. As a result, a cooling mechanism with high cooling effect, low noise, and miniaturization can be realized, and the reliability of the disk drive device can be improved.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a disk drive device equipped with a conventional cooling mechanism, Fig. 2 is a sectional view of a disk drive device according to an embodiment of the present invention, and Fig. 3 explains filter replacement in the device of Fig. 2. FIG. 4 is a sectional view taken along the line A--A in FIG. 2. 3: Fan, 5: Filter, 7: Air intake port, 12: Door, 13: Duct l-, 14: Filter holder, 15: Filter stopper, 16: Air circulation hole, 17: Air circulation prevention plate, 18: Duct part, 22: Screw. Figure 1 Figure 2 412 Figure 3 Figure 4] 2

Claims (1)

[Claims] (1) In a cooling mechanism for a disk drive device that has a fan and a dust filter material and is configured to take in outside air from an air intake port formed in a door, a duct to which the fan and the dust filter material are attached. A disk drive device characterized in that a structure is provided inside the door, and the installation positions of the fan and the air intake port are relatively shifted.