DISK DRIVE

摘要

PURPOSE: A disk drive is provided to reduce a movement noise due to an optical recording medium, noises of a loading system and a feeding system, and a noise due to rotation of a motor. CONSTITUTION: A tray(120) slides on a main frame(110). A cover(140) is combined with the main frame. At least one bead(142,143) is formed on the cover. Beads are formed at a fixed interval in a noise reducing unit(150). The decreasing noise unit flows airflow due to the rotation of disc to the space part. The noise reducing unit reduces a noise of a specific frequency band by the Helmholtz resonance principle.