Symmetric voice coil motor design, assembly methods of...

Details Symmetric voice coil motor design, assembly methods of... Symmetric voice coil motor design, assembly methods of...

2006-02-16

2009-08-18

Evans, Jefferson (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

C360S264800, C360S264900

Reexamination Certificate

active

07576954

ABSTRACT:
A symmetric voice coil motor assembly having a central axis and including: a bearing assembly for rotation about the central axis; a coil assembly that is positioned radially outwardly from the bearing assembly and that has at least two pairs of coils and an inner yoke; a permanent magnet set that is positioned radially outwardly from the coil assembly and that includes at least two pairs of ring magnets and an outer yoke; and a head suspension assembly that is connected to the coil assembly and that includes a head gimbal assembly and an arm connected to the head gimbal assembly. The voice coil motor assembly may be a component in a hard disk drive, such as a micro drive.

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