发明名称 Optical disk device having cooling fan with speed proportional to rotational speed of spindle motor
摘要 An optical disk device has a spindle motor for rotating a disk, an optical head for writing or retrieving data on the disk, a cooling fan for cooling the device, and a motor for rotating the cooling fan. In one embodiment, the device further has a controller for outputting a control signal for controlling the speed of the spindle motor and the cooling fan. In that embodiment, the device further has first and second drivers for adjusting the current supplied to the spindle motor and the cooling fan motor. In another embodiment, the cooling fan is rotated using the spindle motor, transferring power with a gear and a shaft. In both embodiments, the cooling fan rotates in proportion to, e.g., 1.25 times, the speed of the spindle motor.
申请公布号 US6295264(B1) 申请公布日期 2001.09.25
申请号 US19990356028 申请日期 1999.07.16
申请人 NEC CORPORATION 发明人 KAWAKAMI HIROKAZU
分类号 G11B19/20;G11B33/14;(IPC1-7):G11B33/14 主分类号 G11B19/20
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