KR20040108267A - Optical disk drive - Google Patents

Abstract

PURPOSE: An optical disk drive is provided to form the second turn table for a microminiature optical disk except the first turn table for an optical disk having a standard size, and to rotatively drive the second turn table by a dynamic force transmitter, thereby recording/reproducing information on the standard-sized optical disk and the microminiature optical disk as well. CONSTITUTION: The first rotational axis(130) is formed for a spindle motor. The first turn table(131) is coupled with the first rotational axis(130) to set an optical disk therein. A dynamic force transmitter(140) transmits a rotational driving force of the first turn table(131) to the second turn table(151). The second rotational axis(150) receives the rotational driving force of the first rotational axis(130) by the dynamic force transmitter(140). The second turn table(151) is coupled with the second rotational axis(150).

Description

Optical disc drive {OPTICAL DISK DRIVE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disc drive. Specifically, an optical disc having a standard size such as a DVD, a Compact Disc, and the like and a micro optical disc used in a mobile device can be simultaneously read. Relates to an optical disk drive.

Hereinafter, an optical disc having a standard size such as a DVD, a CD, etc. will be referred to as an 'optical disc', and an optical disc used for a mobile device having a smaller size than an optical disc having a standard size will be called a 'miniature optical disc'. .

In general, an optical disc drive such as a CD-ROM or DVD drive has been used as one of the information storage devices that store a large amount of data, and as an information storage medium, such as a CD and a DVD, Use an optical disc.

1A and 1B are diagrams illustrating a structure of a conventional optical disk drive, and FIG. 1A is a rear view showing a tray of an optical disk drive in an open state, and FIG. 1B shows a tray in a closed state of the optical disk drive of FIG. 1A. Back view.

As shown in these figures, an optical disc drive is composed of a slad system, a loading system and other parts.

The slad system is a part for recording and reproducing information recorded on the optical disc 60, the spindle motor 20 for rotating the optical disc 60, the motor PCB ratio for controlling the spindle motor 20, and the optical disc. The pickup device 14 reciprocated to the side surface of the optical disc 60, the slad motor 13 driving the pickup device 14, etc. so as to irradiate light to the 60 to reproduce the stored information. It consists of a slad base 12 for receiving components.

The loading system is a portion for loading the optical disc into the system so that the pickup device 14 can record and reproduce data on the optical disc. The tray 10 is formed so that the optical disc is seated, and the tray 10 is positioned in the deck. Rack guides (4, 5) leading to the, and the slide racks (6, 7) formed to serve as a guide for smooth operation of the tray 10 between the tray 10 and the rack guides (4, 5), It consists of a main frame (1) for holding and receiving the components while fixing the rack guides (4,5).

The other part may include a server (not shown) for driving and driving the loading system, a main board (2) for interfacing with an external device when recording and reproducing data on the optical disc (60), and a tray. It consists of a loading switch 15 for sensing that the 10 is seated on the inside.

The operation of the conventional optical disk drive having the above configuration is as follows.

After moving the assembly consisting of the tray 10, the spindle motor 20, etc. from the main frame 1 to the outside, the optical disc 60 is seated on the turntable 31 of the spindle motor 20, and the tray 10 is moved. To the deck. When the tray 10 is closed, after the rear end of the tray 10 is in contact with the loading switch 15 on the main board 2 to detect the closed state, the spindle motor 20 rotates the optical disc 60, The pickup device 14 records and reproduces data on the optical disc.

However, in recent years, mobile devices such as mobile phones and PDAs have diversified in their functions, and thus, the necessity of recording and reproducing a large amount of data is increasing. As part of this, Korean Patent Publication No. 2002-0041329 The mobile device disclosed in Hoi (Breigberg Michael F, et al.) Has made it possible to use a compact optical disk for convenient portability.

However, an optical disc drive such as a CD-ROM, DVD drive, etc. used in the related art can only record and play an optical disc having a standard size, and cannot record and play an ultra-small optical disc, which has recently been used in mobile devices. There is a problem in that two types of optical disc drives must be operated in order to read different optical discs.

The present invention has been made to solve the above problems, and relates to an optical disc drive capable of recording and reproducing both an optical disc having a standard size and a micro optical disc used in a mobile device.

1A and 1B are diagrams showing the configuration of a conventional optical disk drive.

1A is a rear view showing a tray of an optical disc drive in an open state

FIG. 1B is a rear view of a tray in a closed state of the optical disk drive of FIG. 1A

2A to 3 are diagrams showing the configuration of an embodiment of the optical disk drive of the present invention.

FIG. 2A is a rear view showing a tray of an optical disc drive in an open state

FIG. 2B is a rear view illustrating a tray in which the tray of the optical disc drive of FIG. 2A is closed.

3 is a cross-sectional view taken along line III-III of the optical disk drive of FIG. 2A;

** Description of symbols for the main parts of the drawing **

100: optical disk drive 120: spindle motor

130: first rotating shaft 131: first turntable

140: connecting gear 150: second rotary shaft

151: second turntable 160: optical disc

The present invention includes a first turntable formed to seat and rotate the optical disk in order to achieve the object as described above; A second turn table configured to seat and rotate the micro optical disk; A pickup device for recording and reproducing data on the optical disc; It provides an optical disk drive comprising a.

The apparatus may further include a spindle motor for driving the first turntable and a spindle motor for driving the second turntable.

On the other hand, the spindle motor for driving the first turntable; Power transmission means for driving the second turntable by using the rotational driving force of the first turntable rotationally driven by the spindle motor; It may be configured to include more.

Through this, the optical disk drive of the present invention allows recording and playback of both an optical disk having a standard size and a micro optical disk for mobile devices in one device.

The power transmission means is preferably configured to transmit power in the same direction as the rotational direction of the first turntable and the rotational direction of the second turntable. Here, the power transmission means is preferably configured to transmit power in the same rotation direction of the first turntable and the rotation direction of the second turntable. This is because most recording and reproducing of optical discs have a certain orientation so that data can be read without problems even in this case.

In addition, the power transmission means is composed of a connection gear is effective to transmit power.

On the other hand, the power transmission means may be configured to transmit power by consisting of a winding power unit such as a belt.

In addition, it is effective that two or more second turntables are provided within the pick-up operation range of the pickup device so as to record and reproduce the ultra-compact optical disc seated on the second turntable.

On the other hand, the spindle motor for driving the second turn table; Power transmission means for driving the first turntable by using the rotational driving force of the second turntable rotationally driven by the spindle motor; It may be configured to include more.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted in order not to disturb the gist of the present invention.

2A to 3 are diagrams showing the configuration of an embodiment of the optical disk drive of the present invention, FIG. 2A is a rear view showing a tray of an optical disk drive open, and FIG. 2B is a tray of the optical disk drive of FIG. 2A closed. FIG. 3 is a cross-sectional view taken along cut line III-III of the optical disk drive of FIG. 2A.

As shown in these figures, the optical disk drive of the present invention is composed of a slad system, a loading system and other parts, and the configuration of the loading system and other parts is the same as that of Fig. 1 showing a conventional optical disk. With reference to the configuration of the present invention to the center.

The slad system is a part for recording and reproducing data on the optical disc 160, and the pickup device 114 is moved back and forth to record and reproduce data by irradiating light to the optical disc 160, and the optical disc 160 is rotated. It is configured to include a rotation driving unit 120 and a motor PC ratio 111 for controlling the spindle motor 120.

The rotary drive unit is a disk-shaped first coupled to the first rotating shaft 130, the first rotating shaft 130 formed by the rotating shaft of the spindle motor, and the optical disk 160 is fixed to the disk-shaped first Rotation of the first rotary shaft 130 by the power transmission means 140 and the power transmission means 140 for transmitting the turntable 131, the rotational driving force of the first turn table 131 to the second turn table 151. The second rotary shaft 150 receives a driving force and a second turn table 151 coupled to the second rotary shaft 150 and formed in a smaller disk shape fixed thereto.

Here, the power transmission means 140 is a gear portion 143 formed on the first rotary shaft 130, the connecting gear 141 for transmitting power by rotating in engagement with the gear portion 143, and the connecting gear And a gear part 145 formed on the second rotation shaft 150 to rotate in engagement with 141.

At this time, in order to smoothly rotate the connection gear 141, the boss portion 144 is formed on the flat plate support 121, the protruding rotation shaft 142 is formed so as to rotate from the boss portion 144 The connecting gear 141 is coupled.

On the other hand, the support plate 121 formed of a flat plate is fixed to the lower end of the spindle motor 120 in order to support the spindle motor 120, the first rotary shaft 130 and the first turntable 131, the second rotary shaft The bearing 152 is configured to be installed at the lower end of the second rotation shaft 150 to support the 150 and the second turntable 151 so as to rotate. The support 121 is connected to and fixed to the tray 110 by several fixing parts 122 and 123.

Since most optical discs are recorded and reproduced by the pick-up device 114 in a certain direction, the power transmission means 140 needs to rotate the first turntable 131 and the second turntable 151 in the same direction. To this end, when the power transmission means 140 is composed of a connection gear 141 as described above, the connection gear 141 may be configured such that the odd number of connection gears mesh with each other, and low noise and reduced manufacturing costs In order to transmit power by connecting the first rotary shaft 130 and the second rotary shaft 150 by a winding transmission means such as a belt (not shown) formed of a material such as rubber does not occur in order to.

On the other hand, only one second turntable 151 for an optical disc may not be formed as described above, but may be composed of two or more second turntables to read an ultra-compact optical disc. However, it is necessary to set the position of the second turntable so that the micro optical disc is installed within the pick-up operation range of the pickup device 114 so that the micro optical disc can be recorded and reproduced.

As described above, when the plurality of second turntables is configured, the second one of the plurality of second turntables is used to drive the plurality of turntables using the minimum driving device as in the case of the configuration of one second turntable 151. Preferably, the apparatus further comprises a second power transmission means (not shown) provided between the plurality of second turntables to rotationally drive another second turntable from the turntable.

Since the second power transmission means is effectively configured to have the same rotational direction as the power transmission means, when the connection gear is configured, the odd gears are engaged with each other, and when the winding power transmission device is configured, the rubber slides. It consists of a belt formed of a material that does not occur.

When the turntables for two or more micro-optical disks are configured, there is an advantage in that recording and playback can be performed by selecting desired micro-optical disks with two or more micro-optical disks mounted at the same time without replacing the micro-optical disks one by one.

2 and 3 illustrate that the first turntable is rotationally driven by the spindle motor and the second turntable is rotationally driven by the power transmission means 140. On the contrary, the second turntable is shown in FIG. The spindle motor may be rotationally driven, and the first turntable may be configured to be rotationally driven by the power transmission unit 140. In addition, the first turn table and the second turn table may be configured to be rotationally driven by separate spindle motors.

The optical disc drive of the present invention operates in the same manner as a conventional optical disc drive when recording and reproducing an optical disc having a standard size. The optical disc drive operates as follows when recording and reproducing a micro optical disc.

The micro optical disc is seated on the second turntable 151, the tray 110 is pushed into the deck, and when the tray 110 is closed, the rear end of the tray 110 is in contact with the loading switch 115 on the main board 102. When it is sensed in the closed state, the spindle motor 20 rotates the first turntable 131 fixed to the first rotary shaft 130, the connecting gear 141 rotates in the opposite direction to the first turntable 131 In addition, since the second rotation shaft 150 connected to the connection gear 141 rotates in the same direction as the first turntable 131, the second turn table 151 coupled and fixed on the second rotation shaft 150 is seated thereon. The micro optical disk is rotated in a constant rotational direction.

At this time, the pickup device 114 detects that the optical disk is mounted on the second turntable 151 by a separate sensor or allows the user to select, by input, an optical disk to be recorded and reproduced by the user. Moving onto the turntable 151, data can be recorded and reproduced on a compact optical disc.

Meanwhile, even when the second rotation shaft 150 is driven by the spindle motor 20, the first rotation shaft 130 may be rotationally driven from the second rotation shaft 150 using the connection gear 141. When the rubber belt is formed between the first rotary shaft 130 and the second rotary shaft 150 instead of the step 141, the first rotary shaft 130 and the second rotary shaft 150 may be driven to rotate in the same direction by the rubber belt. have.

Further, even when a plurality of second turntables 151 are mounted and a connecting gear or a belt, which is a second power transmission means, is installed between the plurality of second turntables, another second turntable is rotated by any one of the second turntables. Can be rotated.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

As described above, according to the present invention, in the optical disk drive, in addition to the first turntable for the optical disk having a size of a standard standard, a second turntable for the micro-optical disk is formed, and the second turntable is rotated by the power transmission means, thereby providing one The drive device can record and reproduce not only an optical disc having a standard size but also an ultra-compact optical disc.

Claims (11)

A first turntable configured to seat and rotate the optical disc; A second turn table configured to seat and rotate the micro optical disk; A pickup device for recording and reproducing data on the optical disc; Optical disk drive, characterized in that configured to include. The method of claim 1, And a spindle motor for driving the first turntable and a spindle motor for driving the second turntable. The method of claim 1, A spindle motor for driving the first turntable; Power transmission means for driving the second turntable by using the rotational driving force of the first turntable rotationally driven by the spindle motor; An optical disc drive, characterized in that further comprises. The method of claim 3, wherein And the power transmission means is configured to transmit power in the same direction as the rotational direction of the first turntable and the rotational direction of the second turntable. The method of claim 4, wherein The power transmission means is composed of a connection gear, characterized in that formed to transmit power. The method of claim 4, wherein The power transmission means is composed of a winding power device such as a belt, characterized in that formed to transmit power. The method according to any one of claims 3 to 6, And at least two second turn tables are provided within a pick-up range of a pickup device to record and reproduce a micro optical disc seated on the second turn table. The method of claim 1, A spindle motor for driving the second turntable; Power transmission means for driving the first turntable by using the rotational driving force of the second turntable rotationally driven by the spindle motor; An optical disc drive, characterized in that further comprises. The method of claim 8, And the power transmission means is configured to transmit power in the same rotational direction as that of the first turntable and the rotational direction of the second turntable. The method of claim 9, The power transmission means is composed of a connection gear, characterized in that formed to transmit power. The method of claim 9, The power transmission means is composed of a winding power device such as a belt, characterized in that formed to transmit power.