Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-06-26
1998-04-28
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 64, 310242, H02K 1300, H02K 100
Patent
active
057448892
ABSTRACT:
A commutator having a sliding surface formed by arranging a plurality of segments insulated with each other into a circle on a plane which is substantially perpendicular to a shaft is provided at one end of a armature. A plurality of brushes slide on the sliding surface. As seen from an axial direction, the brushes have a substantially trapezoidal shapes having widths that get narrower towards a center of the commutator. The brushes have a back end surface to which a spring is attached to. The back end surface is inclined towards the edge of the sliding surface of the commutator. The brush holders for receiving the brushes have recesses that are substantially trapezoidal in shape to correspond with the peripheries of the brushes.
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Nippondenso Co. Ltd.
Stephan Steven L.
Wallace, Jr. Michael J.
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