Invention Grant
- Patent Title: Plurality of non-magnetic dampers on a voice coil yoke arm
- Patent Title (中): 多个非磁性阻尼器在音圈轭臂上
-
Application No.: US11818182Application Date: 2007-06-12
-
Publication No.: US07990657B2Publication Date: 2011-08-02
- Inventor: Ta-Chang Fu , Jeffrey Kerner
- Applicant: Ta-Chang Fu , Jeffrey Kerner
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B5/55
- IPC: G11B5/55

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.
Public/Granted literature
- US20080310054A1 Plurality of non-magnetic dampers on a voice coil yoke arm Public/Granted day:2008-12-18
Information query
IPC分类: