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1. 发明授权

US08958179B1 Managing resonance frequency of hard disk drive voice coil motor 有权
标题翻译：管理硬盘驱动器音圈电机的共振频率
公开(公告)号：US08958179B1
公开(公告)日：2015-02-17
申请号：US14149258
申请日：2014-01-07
申请人： HGST Netherlands B.V.
发明人： Michio Ueha , Takeshi Saito , Kohji Takahashi , Hiroki Kitahori
IPC分类号： G11B17/00
CPC分类号： G11B5/5569 , G11B5/48 , H02K41/0358
摘要： Approaches to reducing the natural frequency of a voice coil motor (VCM) in a hard disk drive include configuring one or both of the yokes with at least one mating structure that comprises a step feature that partitions the mating structure into a contact surface and a recessed surface, where the contact surface is toward the outer area of the mating structure and contacts a corresponding mating structure of the other yoke and the recessed surface is toward the inner area of the mating structure and does not contact with the corresponding mating structure of the other yoke. Consequently, the distance between the fixed points is increased, which reduces the natural frequency and thus the resonance of the VCM assembly.
摘要翻译：降低硬盘驱动器中的音圈电动机（VCM）的固有频率的方法包括使用至少一个匹配结构来配置一个或两个轭，该配合结构包括将配合结构分成接触表面的步骤特征和凹入表面，其中接触表面朝向匹配结构的外部区域并且接触另一个轭的相应配合结构，并且凹入表面朝向配合结构的内部区域并且不与另一个的相应配合结构接触轭。因此，固定点之间的距离增加，这降低了固有频率，从而降低了VCM组件的共振。

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