Transmission device for suction CD-ROM

Abstract

A transmission device for a slot-in optical disc drive. A fixed block is protruded from the slot-in optical disc drive to fix a fixed ring of a piezoelectric motor. Machine, and there is a driving surface on the side of the front end, the driving surface is a rough surface formed by hardness strengthening, and contacts with the lever, and the lever moves forward and backward for a predetermined stroke distance to advance and retreat.

Description

technical field [0001] The invention relates to a CD player, in particular to a transmission device for providing power to link guide rods in a slot-in CD player to guide CDs into and out of the CD player. Background technique [0002] Because the slot-in optical disc drive uses a single transmission power to drive multiple connecting rods to move in sequence, and the guide rods on the periphery of the optical disc drive are linked together to automatically move the disc into or out of the optical disc drive, so as to facilitate the use and operation. [0003] As shown in Figure 1, it is a traditional slot-in optical disk drive 1, which is powered by a DC motor 2 and rotates a gear set 3. By changing the rotational torque of several gears in the gear set 3, the power output by the DC motor 2 , enough to drive a slider 4 to move forward, and the slider 4 utilizes various guide grooves 5 in different orientations on it to drive the film advance lever 6 to touch the contact lev...

AI Technical Summary

Problems solved by technology

[0006] However, the torque of the DC motor is small. For the slot-in optical disc drive, there are many parts and the linkage is complicated. It is necessary to use the transmission design of multiple gears to obtain sufficient torque for the output torque of the DC motor. Push to push the sliding part, but when the number of gears in the gear set increases, not only the cost will increase, but also the volume will increase, which is not conducive to the arrangement of the internal parts of the optical disc drive, especially for thin optical disc drives, the space and thickness are limited, only Smaller size DC motors can be used, and the relative torque will be greatly reduced. It is necessary to cooperate with the transmission design of more gears to be able to drive the sliding parts.

In addition, even if the reverse current is applied to stop the rotation of the DC motor, due to the rotational inertia of the DC motor, it is still impossible to control the advancing and retreating mechanism so that the optical disc can be positioned accurately.

At the same time, the slot-in optical disc player needs to cooperate with the advance and retreat mechanism. The sensing device installed on the path of each mechanism is used for positioning and discrimination of disc size, which makes the control system of the optical disc player more complicated and increases the number of optical disc players. complexity and difficulty

Therefore, there are still problems to be solved urgently in the positioning and space configuration of the transmission device of the traditional slot-in optical disc drive

Images