Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-11-20
1997-10-07
LaBalle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310184, H02K 714, H02K 318, H02K 328
Patent
active
056751966
ABSTRACT:
A ten pole/twelve slot brushless DC motor for a disk drive spindle includes a base; a cylindrical rotor structure rotating relative to the base and a generally symmetrically slotted stator structure fixed about an axis of rotation. The rotor structure includes a permanent magnet ring structure defining ten permanently magnetized alternating north-south magnet segments. The stator structure includes a ferromagnetic core defining twelve stator slots between twelve stator poles. Coils of insulated wire are wound around the stator poles in one of a plurality of disclosed winding patterns and connected into a series of phases, e.g. three phases.
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Hartman Albert
Huang Ben
Chun Debra A.
Harrison David B.
LaBalle Clayton E.
Quantum Corporation
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