JPH05101633A - Cooling mechanism - Google Patents

Abstract

PURPOSE:To prolong the period when the external air cleaning filters of the cooling mechanism of an optical disk sub-system device can be used. CONSTITUTION:This mechanism is constituted of a fan motor 5 for introducing the cooling air into the optical disk sub-system device and two kinds of the air cleaning filters 7a, 7b. The filters are covered with the relatively large dust before the filters are clogged by the fine dust, by which the decrease in the quantity of the air to be introduced is prevented. Therefore, the period for the filter exchange is thereby prolonged and the time and economical losses of the filter exchange are decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling mechanism, and more particularly to a cooling mechanism for an optical disk subsystem device.

[0002]

2. Description of the Related Art Conventionally, a cooling mechanism in an optical disk subsystem device of this type uses a fan motor to prevent a temperature rise in the device and introduces external air into the device for cooling. In addition, the air introduced into the device is passed through one filter provided in the air inlet to remove dirt in the air in order to prevent dirt inside the device, particularly lens dirt of the optical head. The mechanism is introduced into the device.

Therefore, when used in a natural environment,
Since fine dust causes the filter to be clogged and relatively large dust covers the surface of the filter, the dust interferes with the introduction of air, and the filter must be replaced.

[0004]

As described above, in the conventional cooling mechanism of the optical disk subsystem device, when used in a natural environment, dust in the air accumulates in the filter, but the filter is The fine dust that can be removed causes clogging of the filter, which hinders the introduction of air.Because the filter is covered with relatively large dust before the period of use, the introduction of air is disturbed. ..

As a result, there is a problem in that the filter must be replaced before the filter performance is fully used up, resulting in economical and time loss.

An object of the present invention is to provide a cooling mechanism capable of extending the service life of the filter.

[0007]

In order to achieve the above object, in a cooling mechanism according to the present invention, there is provided a cooling mechanism having a fan motor and a filter, wherein the fan motor is installed in an enclosure through an air inlet. Cooling air is introduced, the filter is for purifying the air introduced from the air introduction port, and the filter is for primary purification for removing relatively large dust and for primary purification. And a filter for secondary purification that removes fine dust that has passed through the filter.

Further, it has a mechanism for holding the filter for primary purification and winding up a used portion of the filter for primary purification.

[0009]

The filter for purifying air has a double structure, and the filter for primary purification removes relatively large dust, and the filter for secondary purification uses fine dust that has passed through the filter for primary purification. To remove.

[0010]

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

FIG. 1 is a side sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing the function of the filter of the present invention.

First, the configuration of the optical disk subsystem device of the present invention will be described with reference to FIG.

Using the optical disc medium 1, an optical disc device 2 for reading and writing information, a control device 3 for controlling the optical disc device 2, a power supply device 4 for driving the system, and an inside of the optical disc subsystem device are cooled. The fan motor 5 for the above is housed in the subsystem housing 6.

The fan motor 5 is connected to and attached to an air inlet 6a provided at the rear of the subsystem housing 6. The filter 7a for secondary purification of external air is
It is attached to the outside of the air introduction port 6a so as to cover the air introduction port 6a.

The filter 7b for primary purification is a reel 8a.
It is wound and held on the reel 8b and is wound around the reel 8b at a position opposite to the reel 8a, and is mounted in series with the filter 7a.

Next, the function of the present invention will be described using FIG.

Referring to FIG. 2, the filter 7a for secondary purification is made of a material capable of removing fine dust.
The filter 7b for the next purification is made of a material having a roughness that can remove relatively large dust.

In the external air sent into the optical disk subsystem by the fan motor 5, relatively large dust is removed by the filter 7b, and then fine dust passing through the filter 7b is removed by the filter 7a.

When used in a natural environment, the filter 7b is covered with a relatively large amount of dust, and the filter 7a is clogged with fine dust to reduce the amount of air introduced. Since it is bellows-shaped and has a large area, the filter 7a has a longer usage period than the filter 7b is covered with dust.

Therefore, by winding the filter 7b around the reel 8b, an unused portion of the filter 7b wound around the reel 8a is installed at a predetermined position so that the performance of purifying the introduced air is maintained. It has become.

[0021]

As described above, according to the present invention, the filters for purifying the external air when it is introduced into the optical disk subsystem device are doubled to remove the relatively large dust by the primary purifying filter. By removing fine dust with the secondary purification filter, in one filter, the filter is covered with relatively large dust before the filter is clogged with fine dust, which reduces the amount of air introduced. In order to replace the filter for this purpose, the primary purification filter is wound on a reel to set an unused portion of the primary purification filter at a predetermined position and the filter is covered with dust. As it prevents the amount of air introduced from decreasing, the filter replacement period can be extended,
This has the effect of reducing the time and financial loss for filter replacement.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the function of a filter.

[Explanation of symbols]

 5 Fan Motor 6a Air Inlet 7a Filter 7b Filter 8a Reel 8b Reel

Claims (2)

[Claims] 1. A cooling mechanism having a fan motor and a filter, wherein the fan motor introduces cooling air into the housing through an air inlet, and the filter introduces air introduced through the air inlet. The filter comprises a filter for primary purification that removes relatively large dust, and a filter for secondary purification that removes fine dust that has passed through the filter for primary purification. Cooling mechanism characterized by being 2. The cooling mechanism according to claim 1, further comprising a mechanism that holds the primary purification filter and winds up a used portion of the primary purification filter.