Mechanism for guiding airflows within optical disc drive

A guide mechanism for guiding airflows within an optical disc drive, in which the optical disc drive includes a chassis having a side wall and a tray for loading or unloading a disc having a diameter of about 12 centimeters (cm), the guide mechanism comprises:

• at least one guide passage, protruded outwardly from the side wall of the chassis and having two guiding oblique surfaces at its both ends,
• wherein the guide passage is positioned on an extended line of a diameter of the disc normal to the side wall of the chassis and is located at the outside of the periphery of the disc, when the disc is loaded into the optical disc drive, and;
• a rib provided in the guide passage for positioning the loaded disc stably,
• thereby airflows produced by the revolving disc is guided to flow through the guide passage.