Apparatus for reducing spindle motor magnetic drag

Details Apparatus for reducing spindle motor magnetic drag Apparatus for reducing spindle motor magnetic drag

2005-04-05

2005-04-05

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156010, C310S085000, C310S156080, C360S099080

Reexamination Certificate

active

06876114

ABSTRACT:
A magnetic flux shield extending substantially the entire width of a magnetic disk drive spindle motor magnet is mounted between the magnet and the disk drive's base frame and rotates with the magnet. The flux shield is formed of a magnetic material to capture any stray magnetic flux from the motor magnet that may produce power draining eddy currents in the base frame.

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