Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-07-22
1999-03-02
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310239, 310 50, 318292, H02K 2302, H02K 2336
Patent
active
058775730
ABSTRACT:
A D.C. motor and an associated switch circuit for selecting between forward and reverse motor rotation about a motor axis. Two armature winding portions are disposed on an armature core, A magnetic flux source on the stator provides magnetic flux across an air gap for interaction with these winding portions. One winding portion, when energized, causes armature rotation in a forward sense; the other winding portion, when energized, causes armature rotation in a reverse sense. The associated switch circuit contains first circuit branch, including a first selectively operable switch, connected via certain brushes and commutator to include the one winding portion, and a second circuit branch, including a second selectively operable switch, connected via certain brushes and commutator to include the other winding portion. Operation of the first switch to closed position energizes the one winding portion to cause forward rotation; operation of the second switch to closed position energizes the other winding portion to cause reverse rotation.
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Jones Judson H.
Siemens Electric Limited
Stephan Steven L.
LandOfFree
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