JP2000021158A - System for air-cooling electric apparatus provided with disk drive - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air-cooling system wherein the inside of a component which is installed in the upper part of a disk drive such as a CD player or the like and which is composed of another disk drive or the like can be air- cooled by driving the disk drive in its lower part. SOLUTION: Out of a component 1 and a component 2 which are stacked up and down, the component 2 on the lower stage side is constituted as a disk drive such as a CD player or the like. That is to say, in the component 2, turntable 3 which turns a disk D is provided, and a clamp disk 5 which is faced with the turntable 3 and which is turned freely is provided. While the disk D is clamped by the turntable 3 and the clamp disk 5, the component 2 can be turned. Especially, a cascade 6 is formed on the surface of the clamp disk D, and an air current is generated by the cascade 6 toward the inside of the component 1 on the upper stage side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD player and an M
BACKGROUND OF THE INVENTION The present invention relates to an air cooling system for an electric apparatus having a disk drive device such as a D player, and more particularly to an air cooling system in which such a disk drive device is disposed at a lower level and other components installed on the upper portion are driven by driving the lower disk drive device. The present invention relates to an air-cooling system for electric equipment including a disk drive device capable of performing the above-described operations.

[0002]

2. Description of the Related Art Conventionally, CDs (compact discs), M
2. Description of the Related Art There is known a disk drive device capable of reproducing recorded information and recording external information on the surface of a disk while rotating a disk-shaped recording medium such as D (mini disk) or DVD (digital video disk). It is widely used in general.

In such a disk drive device,
Some discs have a built-in fan to suppress heat generation of electronic components when driving a disk-shaped recording medium.
This not only increases the cost, but also increases the power consumption. In addition, the installation space must be secured, resulting in an increase in the size of the device.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. Hei 8-279242, a cooling blade is provided on a turntable on which a disk-shaped recording medium is placed, and when the disk-shaped recording medium is rotated by the turntable, the blade is used in the apparatus. It has been proposed that an airflow is generated in the device, and the device is air-cooled by forced convection by the blades to protect the electronic components.

[0005]

However, according to the disk drive device having the above-mentioned turntable with blades, the inside of the disk drive is cooled while the turntable is rotating. In the case where individual unit devices (components) are used in a multi-tiered manner as in the case of, for example, it is impossible to cool the inside of other components installed above this.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to allow the inside of a component such as a CD player or the like, which is installed above a disk drive, to be cooled by driving the disk drive below. I do.

[0007]

In order to achieve the above object, the present invention includes at least two components 1 and 2 which are stacked one on top of the other, of which the lower component 2 is mounted on a drive shaft of a motor 4. It has a turntable 3 for horizontally supporting a disk-shaped recording medium and a rotatable clamp plate 5 facing the upper surface of the turntable. The turntable 3 and the clamp plate 5 clamp the disk-shaped recording medium. The disk drive device is configured to rotate while rotating, and the upper component 1 is attached to the clamp plate 5 in the lower component 2 thereof.
The present invention provides an air-cooling system for electric equipment including a disk drive device, characterized in that a cascade 6 for generating an airflow is formed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, FIG. 1 shows a schematic diagram of an air cooling system according to the present invention. In the figure, reference numerals 1 and 2 denote components as audio electrical equipment, and the components 1 and 2 are stacked one above the other as shown.

Here, these components 1 and 2 are:
It is configured as a disk drive device that records and reproduces information while rotating a disk-shaped recording medium (hereinafter abbreviated as a disk). The upper component 1 is an MD player that drives, for example, a mini-disc (MD) as a disc, and includes therein a turntable (not shown) for rotating the MD as is well known in the art.
The driving source, a driving source, and a circuit board for controlling operation of the driving source and the like are provided.

On the other hand, the lower component 2 is a CD player for driving, for example, a compact disk (CD) as the disk D. A turntable 3 for rotating the disk D as shown in FIG. And a clamp board 5 facing the turntable 3 via a disk D, and the like.

Here, the motor 4 is a spindle motor, and the turntable 3 is mounted on the drive shaft. The turntable 3 is rotated in a predetermined direction by a motor 4 while supporting the center of the lower surface of the disk D, whereby the disk D is also rotated in the same direction. It can be read.

The clamp plate 5 is located at a position facing the upper surface of the turntable 3 and is rotatably supported by a portion of the apparatus main body. When the center of the disk D is positioned immediately below the disk D, The disk D is clamped together with the turntable 3 by contacting the center of the upper surface of the disk D. Therefore, when the turntable 3 rotates, the clamp plate 5 is also rotated in the same direction via the disk D.

In particular, a cascade 6 is formed on the upper surface of the clamp board 5 so that an upward airflow is generated in the cascade 6 while the clamp board 5 is rotating. In other words, the lower component 2 has not only the drive function of the disk D but also a function as a blower fan.
At the time of driving, the inside of the upper component 1 can be air-cooled by forced convection by the cascade 6.

The upper component 1 has no housing on a part of the bottom surface facing the clamp board 5 or the entire bottom portion, and is in communication with the lower component 2 so that the airflow by the cascade 6 is reduced from the bottom to the inside. Can be introduced.

FIG. 2 is a schematic perspective view showing the lower components. In this figure, reference numeral 7 denotes a machine frame of the component 2 and 8 denotes a pedestal which is swingably mounted on the machine frame 7. The motor 4 is fixed to the back side of the pedestal 8, and its drive shaft is mounted on the pedestal. 8 protrudes from the upper surface side. 9 is the above-described pickup mounted on the pedestal 8,
The pickup 9 can read information recorded on the disk D while moving in the radial direction along the disk D. Reference numeral 10 denotes a tray on which the disk D is placed,
The tray 10 can guide the disk D disposed on the upper surface of the machine frame 7 between the turntable 3 and the clamp plate 5 while moving along the upper surface of the machine frame 7. In addition, 1
Reference numeral 1 denotes an arm attached to the machine frame 7, and a clamp board 5 is rotatably attached to the tip of the arm in proximity to the turntable 3.

Here, when the disk D is not loaded, the pedestal 8 stands by with the device side of the turntable 3 below the fulcrum P side in an inclined state, as shown in FIG. 2 or FIG.
When the disc D starts to be loaded, it swings around the fulcrum P,
Finally, the center portion of the disk D can be supported by the turntable 3 in a horizontal state while the disk D is floated from the upper surface of the tray 10. In FIG. 2, reference numeral 12 denotes a gear that rotates in conjunction with a mechanism (not shown) that swings the pedestal 8, and the gear 12 meshes with a portion of the tray 10 to adjust the movement timing of the pedestal 8 and the tray 10. . Therefore, the disk D is properly supported at its center by the turntable 3 and is separated from the upper surface of the tray 10. At this time, the disk D comes into contact with the clamp disk 5 and Will be clamped.

FIG. 4 shows this state. Here, 13,1
Numeral 4 denotes a circular base and an auxiliary plate constituting the clamp board 5, respectively. In particular, a magnet 16 is interposed between the base 13 and the auxiliary plate 14 so that the magnetic force of the magnet 16 can attract the base 13 and the turntable 3 via the disk D. Therefore, the disk D can be firmly clamped by the turntable 3 and the clamp board 5 and rotated properly. The cascade 6 is fixed to the upper surface of the auxiliary plate 14 by the screw 15 described above.

As shown in FIG. 5, the cascade 6 comprises a plurality of arc-shaped wings 6A radially arranged on the outer periphery of a cylindrical hub 17 through which fixing screws 15 are passed. Are formed integrally with the hub 17 to form an impeller. The blades 6A are forward-facing blades whose tip sides (blade outlets) are inclined in the rotational direction, and their respective intervals and inclination angles are set so as to generate an airflow toward the upper component 1 side. Then, the cascade 6 thus formed connects the screws 15 passed through the hub 17 to the auxiliary plate 14.
Is fixed on the auxiliary plate 14 by screwing into the base 13 via the.

Here, according to the lower component 2 in which such a cascade 6 is formed on the clamp board 5, the disk D
During the reproduction of the CD as above, it can also function as a blower fan to cool the inside of the upper component 1 by air. In particular, M driven by the upper component 1
D, when dubbing the recording information of the CD driven by the lower component 2, the CD as the disc D
Along with the cascade 6 rotated by the turntable 3 in the lower component 2, the upper component 1
Can be cooled by the airflow from the cascade 6. In the case of reproducing the MD in the upper component 1, the lower component 2 can be idled with no CD loaded and used only as a blower fan.

The preferred embodiment of the present invention has been described above with reference to the drawings. However, the present invention is not limited to the above-described configuration, and the lower component 2 is an optical disk such as a CD as a disk-shaped recording medium. The disk drive is not limited to a disk drive, but may use a magneto-optical disk such as an MD, a floppy disk (FD), or another magnetic disk. For example, the lower component 2 can be configured as an MD player, an FD drive, a DVD player, or the like in addition to the CD player as in the above example.

On the other hand, the component 1 in the upper stage is not limited to the MD player, and a tape deck, a tuner, an amplifier, and the like can be used as a DVD player and other disk drive devices as described above, or as other audio equipment. .

The cascade 6 has arc-shaped blades 6 as described above.
A is not limited to a spiral arrangement but may be various shapes and arrangements. For example, as shown in FIGS. 6 and 7, fin-shaped wings 26A and 36A may be arranged on the circumference of the auxiliary plate 14 forming the upper surface of the clamp board 5 to form a cascade. 6 and 7, each blade 26A, 36A has a cut in the circumferential portion of the auxiliary plate 14 and the inside of the cut is turned back, and the cascade of FIG. 6 clamps each blade 26A. 7 is formed by bending and raising each blade 36A in an inclined manner.

As described above, the cascade can be formed by arranging the respective blades of a predetermined shape on the upper surface of the clamp board 5, but the cascade is formed by forming a predetermined angle on the outer peripheral surface instead of the upper surface of the clamp board. It can also be formed. In this case, the upper edge of each wing is inclined to the opposite side of the rotation direction so as to generate an airflow upward, that is, on the component 1 side.

[0024]

As is apparent from the above description, according to the present invention, a cascade is simultaneously rotated by a turntable provided in a disk drive device such as a CD player, and an MD player or the like installed above the cascade. Of the components can be cooled by the airflow from the cascade.

Therefore, it is possible to cool the inside of the upper component without having a built-in blower fan, so that a small and lightweight audio system or AV system including a disk drive device such as a CD player or a DVD player can be provided.
A system can be built.

In particular, when the upper component is used while driving the disk with the lower component, the power consumption can be reduced because the rotation motor of the turntable is also used without rotating the cascade alone.

[Brief description of the drawings]

FIG. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic perspective view showing an example of a lower disk drive device.

3 is a schematic side view showing another component installed on top of the component shown in FIG. 2;

FIG. 4 is a partial cross-sectional view showing a state where a disk is clamped by a turntable and a clamp board.

FIG. 5 is a plan view showing an example of a cascade.

FIG. 6A is a plan view showing another form of the cascade,
(B) is the side view

FIG. 7A is a plan view showing another embodiment of the cascade,
(B) is the side view

[Explanation of symbols]

 Reference Signs List 1 component (upper side) 2 component (lower side) 3 turntable 4 motor 5 clamp board 6 cascade 6A wing

Claims (1)

[Claims] 1. A turntable including at least two components stacked vertically, wherein a lower component is mounted on a drive shaft of a motor and horizontally supports a disk-shaped recording medium, and faces a top surface of the turntable. It is configured as a disk drive device that rotates while clamping the disk-shaped recording medium with its turntable and the clamp disk, and has a lower component and an upper component on the clamp disk. An air-cooling system for an electric device including a disk drive device, wherein a cascade for generating an airflow toward the air-conditioner is formed.