发明名称 Spindle motor for driving optical disk
摘要 Disclosed is a spindle motor adopted to a disk player. The spindle motor includes: a deck plate; a pivot mounted on the deck plate, for being rotatable; a rotor of a cap shape, joined to an outer peripheral surface of an upper side of the pivot and having tracks formed in different heights on an upper portion, and on an inner peripheral surface of which a magnet is mounted; a pulling magnet provided to a lower portion of the rotor, for generating attractive force pulling the rotor to the lower portion; a stator including a metal bearing positioned on a lower portion of the rotor and mounted on an outer peripheral surface of the pivot, a holder provided to an outer peripheral surface of the metal bearing, and a core wired by a coil provided to an outer peripheral surface of the holder; and a turntable including a disk chuck fixed on an upper surface of the rotor, for centering and settling a disk, and a jaw installed on the disk chuck, for fixing a settled disk. The pulling magnet is mounted downward on the housing in the upper end of the stator in a subsiding manner, so that the whole height of the spindle motor could be reduced as much as the downward depth of the pulling magnet. Also, the turntable is mounted downward on the track of the rotor in a subsiding manner, so that the whole height of the spindle motor is reduced ever more.
申请公布号 US2004114497(A1) 申请公布日期 2004.06.17
申请号 US20030412436 申请日期 2003.04.11
申请人 SAMSUNG ELECTRO-MECHANICS CO., LTD. 发明人 LEE CHIL SUNG;KIM TAE HEON
分类号 H02K1/22;G11B17/028;G11B17/038;G11B19/20;G11B25/04;H02K1/27;H02K5/16;H02K21/22;(IPC1-7):G11B23/00;G11B25/00 主分类号 H02K1/22
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