Driver capable of inhibiting lifting of disc

A technology of optical discs and optical drives, which is applied in the direction of poor vibration/sound insulation/absorption, recording information storage, instruments, etc., and can solve the problem of difficult reading or writing data by the read-write head 112, the influence of the read-write head, and the failure of optical discs Stable vibration and other issues

Inactive Publication Date: 2011-03-23
PHILIPS & LITE ON DIGITAL SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, when the rotation speed of the optical disc exceeds 10,000 revolutions per minute (rpm), the optical disc will start to generate unstable vibrations. In addition to increasing the probability of the disc fragments, excessive vibration will also cause the read-write head to 112 Difficult to read or write data accurately
In addition, when the rotation speed of the disk exceeds 12,000 revolutions (rpm), the pressure difference between the upper and lower surfaces of the disk will generate a rising force to lift the disk, which will have a great impact on the read-write head.

Method used

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  • Driver capable of inhibiting lifting of disc
  • Driver capable of inhibiting lifting of disc
  • Driver capable of inhibiting lifting of disc

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Embodiment Construction

[0017] Please refer to Figure 2a and Figure 2b , these two figures show the gas pressure distribution on the upper surface of the optical disc during high-speed rotation. What is shown in the figure is the situation viewed from directly above the optical drive, wherein, Figure 2a CD-ROM 20 with Figure 2b The distance between the optical disc and the optical drive top cover is not the same. Figure 2a 20, the distance between the disc and the cover is 7.0 cm; as for Figure 2b For the optical drive 22, the distance between the optical disc and the upper cover is 3.5 centimeters. From these two figures, it can be clearly seen that when the distance between the optical disc and the upper cover is large, for example, Figure 2a If the center is 7.0 cm, the isobar distribution of the gas pressure on the surface of the disc will be quite messy during the high-speed rotation of the disc. At this time, since the airflow on the surface of the optical disc is quite unstable, t...

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Abstract

The invention discloses a driver, which comprises an under frame, a tray and an upper cover, wherein the tray is positioned on the under frame and used for supporting a disc; the upper cover is arranged on the under frame and used for covering the tray and the disc, and the upper cover is provided with at least one rib; and when the disc is placed in the driver to read or write a data program, the distance between the surface of the disc and the rib of the upper cover of the driver is less than 3.5 centimeters. The invention relates to the driver capable of inhibiting lifting of the disc.

Description

technical field [0001] The invention relates to an optical drive, in particular to an optical drive capable of suppressing the vibration of the optical disc. By improving the gas flow field inside the optical drive, the vibration and lifting phenomenon of the optical disc during high-speed rotation can be effectively suppressed. Background technique [0002] With the continuous development and progress of electronic and mechanical related technologies, the performance of computer peripheral products such as hard disks, optical drives, scanners, printers, etc. is also more powerful. As far as optical drives are concerned, optical discs currently on the market generally have a storage capacity of up to several gigabytes and can store data including music and video formats for a long time, so they have become a must-have storage medium for consumers. In particular, with the development of a new generation of Digital Versatile Disc (DVD), since its storage capacity can be furthe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B17/053G11B33/08
Inventor 田正禾王文弘
Owner PHILIPS & LITE ON DIGITAL SOLUTIONS
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