| 摘要 |
<p>A hard disk drive with an air circulation unit. The hard disk drive includes a housing (110) having a base (111) and a cover (112), a spindle motor (130) installed on the base (111), a disk (120) mounted on the spindle motor (130) to store data, an actuator (140) pivotally installed on the base (111) and having a read/write head to write data on the disk (120) or to reproduce the data from the disk, and an air circulation unit (152) installed in the housing (110) to circulate air vertically in the housing by moving air flow produced by rotation of the disk (120) vertically. The air circulation unit (152) may be arranged around the disk (120) so that the air circulation unit (152) is positioned adjacent to an edge of the disk. In particular, the air circulation unit (152) may be installed at a position opposite to the actuator (140) with respect to a center of the disk. The air circulation unit (152) includes at least one of an air ascending member to move air from a lower portion of the disk (120) upward to an upper portion of the disk (120) and an air descending member to move air from the upper portion of the disk (120) downward to the lower portion of the disk. The air below or above the disk (120) is easily moved toward the upper portion or lower portion of the disk (120) by the air circulation unit (152), thereby smoothly circulating the air in the housing (110) and thus improving a filtering efficiency for particles and a temperature characteristic in the housing (110).</p> |
