Patent ID: 7511396
Filing Date: 2009-03-31
Classification: H02K

Abstract:
1. A moving material electric control device for controlling a moving material, said device comprising a motor; said motor comprising: a yoke as casing; a shaft extending along a center of the yoke; a stator fixed to the yoke; an armature fixed to the shaft to rotate with the shaft inside the stator, said armature comprising an iron core that comprises a plurality of teeth divided by a plurality of slots extending axially of the shaft and formed circumferentially; and a commutator fixed on the shaft close to the armature, comprising a plurality of commutator segments on an outer circumferential surface, a first wire that extends from a first of the commutator segments being wound on one of said plurality of teeth and returning to a second of the commutator segments to form a normal coil, while a second wire that extends from a a third of the commutator segments is wound on another of said plurality of teeth of the armature and returning to the third of the commutator segment to form a brake coil acting as a short circuit.