发明名称 SPINDLE MOTOR FOR ODD
摘要 PURPOSE: A spindle motor for an ODD(Optical Disc Drive) is provided to keep driving property of a motor stable while improving media recognition by reducing unbalance of an optical disc as making centering of a turntable compensate a dimension distribution of a penetrating hole on the optical disc. CONSTITUTION: A plate(11) has a tube shape and includes a burring part(11'). A holder(12) having an open top and a closed bottom is inserted into the burring part. The burring part includes a core(14) at an outer circumference and a bearing(13) inserted into an inner circumference. A rotor(17) includes a rotational shaft(15) inserted into the bearing and a magnet(18) combined to an upper end of the rotational shaft as a single body. A track groove(23) including a plurality of balls(24) rotating with the rotor and compensating eccentricity is formed to the turntable(20). A center ring(22) is installed to an upper face of the turntable and is projected in a column shape to be inserted into the penetrating hole of the optical disc(D). An elastic part(30) is formed toward the inner circumference of the penetrating hole.
申请公布号 KR20040032390(A) 申请公布日期 2004.04.17
申请号 KR20020061505 申请日期 2002.10.09
申请人 SAMSUNG ELECTRO-MECHANICS CO., LTD. 发明人 HONG, WON GI;KIM, TAE HEON
分类号 G11B19/20;(IPC1-7):G11B19/20 主分类号 G11B19/20
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