发明名称 |
Base plate for spindle motor |
摘要 |
A base plate for a spindle motor is provided defining a minimal axial gap with a relatively rotatable magnet. In an example, a surface of the base plate is positioned at 0.1 mm from an adjacent surface of a relatively rotatable magnet. The base plate is comprised of a composite material such that stiffness is improved and acoustic vibration is reduced, while maintaining low power consumption and a fast start-up time. A first material, being a nonmagnetic material is employed adjacent to a motor magnet, and a second material having a preferred stiffness is employed at a greater radial distance from the magnet than the radial distance between a stator and the magnet.
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申请公布号 |
US2004232782(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20030688399 |
申请日期 |
2003.10.15 |
申请人 |
XU MO;CHOO VICTOR C.;HONG YIREN;LIM POHLYE;NG SIEWMING |
发明人 |
XU MO;CHOO VICTOR C.;HONG YIREN;LIM POHLYE;NG SIEWMING |
分类号 |
G11B19/20;H02K1/28;H02K5/02;H02K5/04;H02K5/24;(IPC1-7):H02K7/00;H02K11/00 |
主分类号 |
G11B19/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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