JP4088890B2 - Disk unit - Google Patents

Description

  The present invention relates to a disk apparatus in which a disk stored in a TOP case is rotated by being sandwiched between a turntable and a clamper of a chucking mechanism.

The first prior art is shown in FIG. 5, FIG. 6, FIG. 7, and FIG. Of the components 101 and 102 stacked vertically, the lower component 102 is configured as a disk drive device such as a CD player. That is, the component 102 has a turntable 103 for rotating the disk D and a clamp plate 105 that can rotate the man-hour r on the turntable 103, and the disc D is clamped by the turntable 103 and the clamp plate 105. Can be rotated. In particular, a blade row 106 is formed on the upper surface of the clamp plate 105, and an air flow is generated by the blade row 106 toward the inside of the upper component 101. (For example, refer to Patent Document 1).
However, in this case, the entire upper surface of the disk D is not covered with the clamp board 105.

A second prior art is shown in FIG. A shaft portion 205 protrudes from the upper surface of a clamper 204 disposed on the upper side of the turntable 203 of the loader 202 in the disk device 201, a blade body 206 is provided on the shaft portion 205, and a lid portion 207 a of a housing 207 of the disk device 201. Corner-side guide pieces 208 and 208 that are curved outward are provided at the left and right corners, and a pair of left and right center-side guide pieces 209 and 209 that are curved inward are provided on the inner surface of the upper wall of the lid 207a where the blade body 206 is located. By rotating the clamper 204 that rotates integrally with the turntable 203, the blade body 206 is rotated through the shaft portion 205 to generate wind, and the corner side guides 208 and 208 and the central side guide pieces 209 and 209 in the housing 207 are used. A flow of wind is generated, and heat generated from the heat generating components on the printed circuit board P is cooled in the housing 207 by the wind flow to dissipate heat. (For example, refer to Patent Document 2 ).
However, even in this case, the clamper 204 did not cover the entire upper surface of the disk D.
JP 2000-21158 A JP 2002-230962 A

  The present invention has been made in view of the above-described conventional situation, and an ascending air current can be generated in the TOP case by a stirring member provided on a clamper that covers the entire upper surface of the disk. An object of the present invention is to provide a disk device capable of enhancing the cooling effect in the TOP case by airflow.

The present invention has been proposed in order to solve the above-mentioned problems, and the invention according to claim 1 rotates a disk accommodated in a TOP case between a turntable and a clamper of a chucking mechanism. in the disk apparatus that the clamper, the formed larger than the diameter of the disk so as to cover the entire upper surface of the disk, the clamper, and cause updraft in the tOP casing by the rotation of the clamper A stirring member for cooling the inside of the TOP case is provided, and a plurality of openings for discharging the upward air flow generated in the TOP case to the outside are formed on the top wall of the TOP case, and the bottom of the mechanical unit A plurality of openings are formed in the wall portion, and the stirring member extends radially outward from the center portion of the clamper and is It is characterized by being formed by a plurality of long plate member protruding to the outside of the damper.

According to a second aspect of the present invention, there is provided a disc apparatus in which a disc stored in a TOP case is rotated by being sandwiched between a turntable and a clamper of a chucking mechanism.
The clamper is formed to be larger than the diameter of the disc so as to cover the entire upper surface of the disc, and an upward air flow is generated in the TOP case by the rotation of the clamper to cool the inside of the TOP case. And a plurality of openings are formed on the top wall of the TOP case for discharging the rising airflow generated in the TOP case to the outside, and a plurality of openings are formed on the bottom wall portion of the mechanical unit. The stirring member is formed of a spiral groove formed on the upper surface of the clamper.

As described above, each of the inventions according to claim 1 and claim 2 is a disk device in which a disk stored in a TOP case is rotated by being sandwiched between a turntable of a chucking mechanism and a clamper. The stirring member formed by any of a plurality of long plate members provided on the upper surface of the clamper covering the entire upper surface and the spiral groove portion generates an ascending air current in the TOP case and cools the TOP case. The cooling effect in the TOP case can be enhanced by the rising airflow.

FIG. 1 is a longitudinal sectional view of a disk device according to a reference example, and FIG. 2 is a partial perspective view of the disk device according to the reference example. FIG. 3 is a partial perspective view of the disk device according to the first embodiment of the present invention, and FIG. 4 is a partial perspective view of the second embodiment of the present invention.

As shown in FIG. 1 , in the disk device of the reference example, a base 2 having an open interior is grounded in a TOP case 1, and a chucking mechanism 3, an optical pickup 4, and the like are placed inside the base 2. Built-in mechanical unit. Further, a tray 5 on which the disk D is set on the upper surface is disposed on the base portion 2 so as to be able to be taken in and out from the opening 1 a on the front surface of the TOP case 1. Inside the tray 5 is disposed a turntable 6 that is moved up and down by the chucking mechanism 3 to lift the disk D upward and is rotated by a rotation drive member (not shown) to rotate the disk D. A clamper 7 that sandwiches the disk D between the turntable 6 and the turntable 6 is rotatably disposed above the turntable 6.

  The clamper 7 is formed to have a size that covers the entire top surface of the disk D, and a plurality of blade bodies 8 project obliquely upward on the top surface. The clamper 7 is formed by rotating a support piece 7c at the center of the upper surface to a support piece part 12 suspended from a center part of a support plate 11 that extends downwardly from the left and right sides of the base part 2 upward in a substantially U shape. The clamper 7 can be rotated by being supported.

  Further, an upwardly protruding protrusion 6 a is provided at the center of the turntable 6, and when the disk D is clamped between the turntable 6 and the clamper 7, the protrusion 6 a is a center hole d of the disk D. The disc D is prevented from coming off by entering the central recess 7a on the lower surface of the clamper 7.

  A plurality of openings 1b are formed on the top wall of the TOP case 1, and a plurality of openings 9a are formed on the bottom wall portion 9 of the mechanical unit.

In the disk device of the reference example configured as described above, when the turntable 6 is rotated while the disk D is sandwiched between the turntable 6 and the clamper 7, the disk D and the clamper 7 rotate together, Convection is generated in the TOP case 1 by the plurality of blade bodies 8 on the upper surface of the clamper 7 by the rotation of the clamper 7, and an upward air flow is generated in the TOP case. As a result, the inside of the TOP case 1 is cooled.
In addition, outside air enters from the plurality of openings 1b on the upper wall of the TOP case 1 and the plurality of openings 9a on the bottom wall portion 9 of the mechanical unit, and the ascending airflow in the TOP case 1 exits from the opening 1b. The heat generated from the mechanical unit or the like is released from the inside of the TOP case 1 to the outside by the rising air flow, and the inside of the TOP case 1 is cooled, so that the heat is not trapped inside and the cooling effect can be improved.

FIG. 3 is a partial perspective view of the disk device of the first embodiment . The elements shown in FIG. 3 are housed in the TOP case 1 shown in FIG. 1 instead of the disk unit portion as the reference example shown in FIG.
As shown in FIG. 3, the disk device according to the first embodiment includes a plurality of long plate members 10 that constitute a clamper 7A, have a top surface extending radially outward from a central portion, and having an upper surface inclined upward. The stirring member formed by is provided.
When the plurality of long plate members 10 constituting the clamper 7A are rotated integrally with the turntable 6 and the disk D, a convection is generated in the TOP case 1 and an ascending air current is generated to enhance the cooling effect.

FIG. 4 is a partial perspective view of the main part of the disk device of the second embodiment . The elements shown in FIG. 4 are housed in the TOP case 1 shown in FIG. 1 instead of the disk unit portion as the reference example shown in FIG.
In the disk device of the second embodiment , as shown in FIG. 4, a stirring member is constituted by a spiral groove 7b formed on the upper surface of the clamper 7B.
When the clamper 7B is rotated integrally with the turntable 6 and the disk D, a convection is generated in the TOP case 1 by the spiral groove 7b, and an ascending air current is generated to enhance the cooling effect.

It is a longitudinal cross-sectional view of the disk apparatus of a reference example . It is a fragmentary perspective view of a reference example . 1 is a partial perspective view of a disk device according to a first embodiment . It is a fragmentary perspective view of the principal part of the disc apparatus of 2nd Embodiment . It is a front schematic diagram of a conventional disk drive device. It is a perspective schematic diagram of the device. It is a sectional side view of the same apparatus. It is a fragmentary sectional view which shows the state which clamped the disk with the turntable and clamp board in the apparatus. It is a longitudinal cross-sectional view which shows the thermal radiation structure in the conventional disc apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 TOP case 1a Opening part 1b Opening 2 Base part 3 Chucking mechanism 4 Optical pick-up 5 Tray 6 Turntable 6a Protrusion part 7 Clamper 7A Clamper 7B Clamper 7a Center recessed part 7b Spiral groove part 7c Hanging support piece 9 Bottom wall part 9a Opening 10 Long plate material 11 Support plate 12 Support piece D disk d Center hole

Claims (2)

In the disk device in which the disk stored in the TOP case is rotated between the chucking mechanism turntable and the clamper,
The clamper is formed to be larger than the diameter of the disc so as to cover the entire upper surface of the disc, and an upward air flow is generated in the TOP case by the rotation of the clamper to cool the inside of the TOP case. And a plurality of openings are formed in the top wall of the top case to discharge the upward airflow generated in the top case to the outside, and a plurality of openings are formed in the bottom wall of the mechanical unit. The disk device is characterized in that the agitating member is formed of a plurality of long plate members that extend radially outward from the central portion of the clamper and project outward from the clamper. In the disk device in which the disk stored in the TOP case is rotated between the chucking mechanism turntable and the clamper,
The clamper is formed to be larger than the diameter of the disc so as to cover the entire upper surface of the disc, and an upward air flow is generated in the TOP case by the rotation of the clamper to cool the inside of the TOP case. And a plurality of openings are formed in the top wall of the top case to discharge the upward airflow generated in the top case to the outside, and a plurality of openings are formed in the bottom wall of the mechanical unit. The disk device is characterized in that the agitating member is formed of a spiral groove formed on the upper surface of the clamper.

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