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1. 发明授权

US06392845B1 Magnet design for active damping of disk drive actuator 失效
标题翻译：用于磁盘驱动器执行器主动阻尼的磁铁设计
公开(公告)号：US06392845B1
公开(公告)日：2002-05-21
申请号：US09608516
申请日：2000-06-30
申请人： Shingo Tsuda , Eiji Soga , Kiyoshi Satoh , Fu-Ying Huang , Tetsuo Senba
发明人： Shingo Tsuda , Eiji Soga , Kiyoshi Satoh , Fu-Ying Huang , Tetsuo Senba
IPC分类号： G11B548
CPC分类号： G11B5/4833 , H02K41/0358
摘要： A stator magnet according to a first embodiment of the present invention forms a voice coil motor with a closed coil. The closed coil is supported by an actuator arm in a rotatable manner and at a predetermined rotation angle. The closed coil has first and second side edges that extend along different lines in radial directions whose center is a center of rotation of the actuator arm. It also has an outer edge that connects edges of outer sides of the first and second side edges with viewed from the radial direction, and extends along an arc whose center is the center of rotation. A first magnetic pole region is located within a moving area of the first side edge to act on the first side edge. A second magnetic pole region is located within a moving area of the second side edge to act on the second side edge. The polarity of the second magnetic pole region is opposite to the polarity of the first magnetic pole region. A third magnetic pole region is located within a moving area of the outer edge to act on the outer edge. The polarity of the third magnetic pole region is the same as the polarity of the first magnetic pole region.
摘要翻译：根据本发明的第一实施例的定子磁体形成具有闭合线圈的音圈电动机。闭合线圈由致动器臂以可旋转的方式和预定的旋转角度支撑。闭合线圈具有第一和第二侧边缘，该第一和第二侧边缘沿径向方向沿着不同的线延伸，其中心是致动器臂的旋转中心。它还具有从径向观察连接第一和第二侧边缘的外侧的边缘的外边缘，并且沿着其中心是旋转中心的弧线延伸。第一磁极区域位于第一侧边缘的移动区域内以作用在第一侧边缘上。第二磁极区域位于第二侧边缘的移动区域内以作用在第二侧边缘上。第二磁极区域的极性与第一磁极区域的极性相反。第三磁极区域位于外边缘的移动区域内以作用于外边缘。第三磁极区域的极性与第一磁极区域的极性相同。

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