JPS6224398Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cooling device for a disk player.

As digital audio systems, photoelectric type, electrostatic type, and various other types of disk players have been developed.

This disc player is equipped with a small turntable, on which a disc is placed and rotated, and the various information recorded on the disc as uneven "1" and "0" is reproduced into electrical signals by a reading means. However, in this case, heat is generated in the motor and reading means.

The present invention aims to cool down this heat generation and downsize the device.

The illustrated embodiment will be described below.

1 to 4 show an example of this. In the figures, 1 is a main body case, 2 is a motor installed in the main body case, and 3 is a motor 2 arranged on the upper surface of the main body case. 4 is a pressure ring mounted on the turntable, and 5 is an arm rotatably supporting the pressure ring.

The turntable 3 is made of a magnetic material, has a boss 32 at the center of the lower surface of a disc 31, is fixed to the rotating shaft 21 of the motor 2, and has a shaft in which the center hole a of the disc A fits into the center of the upper surface of the disc 31. 33 is erected, the inside of the disk 31 is formed hollow, and a fan 34 for supplying air to the surrounding area is formed in the disk, and the fan 34 is connected to the shaft 33 from the tip thereof.
A ventilation passage 35 is formed which opens to the air passage.

The pressure ring 4 has a through hole 42 in the center of a disc 41, and the lower part of the through hole is connected to the shaft 3.
The magnet ring 43 is fixed to the lower surface of the disc 41, and the magnet ring 43 is removably fitted to the disc 41.
A flange 44 is provided on the upper edge of the disc 41, and a fan 45 is provided inside the disc 41 to take in air from the upper part of the through hole 42 and to send the air to the surrounding area.

The arm 5 is pivoted 51 on the disk 1 at its base, and holds 52 the flange 44 of the pressure ring 4 at its tip.

5 and 6 show other examples of the turntable 3, in which a fan 34 is formed to blow air downward.

With the above configuration, when the disk A is placed on the turntable 3 and pressed by the pressure ring 43, the magnet ring 43 of the pressure ring exerts a magnetic force on the turntable 3, and both sides Hold disk A.

In this state, the motor 2 rotates, turning the turntable 3, disk A, and pressure ring 4 times, and when the playback state is reached, the fans 34 and 45 of the turntable 3 and pressure ring 4 blow air to the surrounding area, forcing forced air cooling. do.

According to the present invention, the surrounding area can be forcedly cooled by the fan 34 provided on the turntable 3, and since the fan 34 is formed on the turntable 3, it is possible to use the fan 34 provided on the turntable 3.
It does not take up space, does not require a complicated mechanism, does not require various members, can be constructed compactly and inexpensively, and does not require maintenance.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the example, FIG. 2 is an enlarged sectional view of the main part of the same example, and FIGS. 3 and 4 are respective views of the main parts of the same example. A perspective view, FIG. 5 is a sectional view of another example of the main part, and FIG. 6 is a perspective view of the same example. 1... Body case, 2... Motor, 3... Turntable, 4... Pressure ring, 5...
arm.

Claims (1)

[Scope of utility model registration request] A cooling device for a disk player in which a fan 34 is formed on a disk 31 of a turntable 3, and a shaft 33 that stands up in the center of the disk 31 is opened from the upper end to the fan 34.