发明名称 |
Index position detector for spindle motor and motor apparatus including the same |
摘要 |
An index position detector for a spindle motor includes a rotor magnet which is provided on an inner surface of a flange portion of a rotor yoke. A window portion is formed in the flange portion such that a part of the rotor magnet faces outwardly. An inductor is disposed in a stator section and opposes the periphery of the flange portion. The inductor detects a magnetic flux of the rotor magnet via the window portion.
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申请公布号 |
US6603304(B2) |
申请公布日期 |
2003.08.05 |
申请号 |
US20010790226 |
申请日期 |
2001.02.21 |
申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
SEKINE MIKIO |
分类号 |
G11B19/20;G11B19/28;H02K29/12;(IPC1-7):G01B7/30;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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