Optical disk device

Abstract

The invention provides a disk device that makes temperature and pressure distributed in the device even and prevents oil or lubricating oil used in the disc motor or bearing configured in the device from being attached to the disk or disk device. A restraining element (70) to be inserted into a center hole (102) in an optical disk (100) to restrain movement of the optical disk (100) in its radial direction is placed on a central portion 61 of an optical-disk-facing surface (52) of a rotor casing (53) for a disk motor (50); a supporting element (65) for supporting an optical disk surface (101) of the optical disk (100) is placed on a radially outer portion (62) of the optical-disk-facing surface (52); and flow paths (66A to 66C) are provided in the supporting element (65), and extend from the outer circumference of the supporting element (65) to its inner circumference to allow the air inside this optical disk device to flow through.

Description

technical field [0001] The present invention relates to an optical disc device, and relates to an optical disc device having a mechanism capable of uniformizing internal temperature and pressure distribution. Background technique [0002] In the prior art, as an optical disc device suitable for portable electronic devices such as personal computers or notebook personal computers, portable information terminal devices, portable image devices, etc., there are: a cover; Covered tray; a disk motor provided on the above tray to rotate the optical disc; freely movably held on the above tray, equipped with at least one optical device for recording or reproducing information on the optical disc, and approaching or leaving the above mentioned Bracket for the disc motor. In such an optical disc device, weight can be reduced by forming a hole or a recess on a part of the rotor (rotor) provided on the above-mentioned disc motor (for example, refer to Patent Document 1). [0003] In ad...

AI Technical Summary

Problems solved by technology

[0005] However, in the optical disc device described in Patent Document 1, a hole or a recess is formed on a part of the rotor of the disc motor, and the heat generated inside the optical disc device is passed through the hole or the recess by the rotation of the rotor to dissipate the heat. The flow path, thereby allowing the heat to diffuse, can prevent the heat rise of the optical disc device, however, for improving the reliability of recording and reproduction by eliminating the pressure difference generated between the central part and the outer peripheral part of the optical disc, or in the optical disc device There is no consideration in preventing the disc from coming off when impact occurs during operation

In addition, in the optical disc device described in Patent Document 1, since the above-mentioned hole or recess is formed close to the disc motor, the oil from the disc motor leaks from the hole or recess, and may adhere to the optical disc or the optical disc device.

[0006] In addition, in the optical disc devices described in Patent Documents 2 and 3, since the above-mentioned through hole is formed close to the bearing supporting the rotating shaft of the disc motor, there is a possibility that the lubricating oil of the bearing leaks from the above-mentioned through hole and may adhere to the optical disc or the optical disc device. superior

Images