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US07990657B2 Plurality of non-magnetic dampers on a voice coil yoke arm 有权
多个非磁性阻尼器在音圈轭臂上

Plurality of non-magnetic dampers on a voice coil yoke arm
Abstract:
A plurality of non-magnetic dampers on a voice coil yoke arm for reducing low frequency vibration in a hard disk drive is disclosed. One embodiment provides housing and at least one disk coupled with the housing. In addition, an actuator is coupled to the housing, the actuator having a coil region with a voice coil and a plurality of voice coil yoke arms. At least one of a plurality of non-magnetic dampers is also coupled with each of the plurality of voice coil yoke arms and not with the voice coil. In so doing, the plurality of non-magnetic dampers are able to damp low frequency actuator coil torsion and coil bending resonances.
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