Patent ID: 6617742
Filing Date: 2003-09-09
Classification: H02K

Abstract:
A star connected wound rotor for a miniature electric motor comprising:a shaft; an armature core fitted to the shaft and having a plurality of armature poles; a commutator having a plurality of commutator segments for making sliding contact with a brush assembly, the commutator being fitted to the shaft adjacent a first end of the armature core; a star connector; and a plurality of coils forming an armature winding, each coil being wound around an armature pole and being terminated on a segment of the commutator and on the star connector, the star connector comprising a base of insulating material fitted to the shaft adjacent a second end of the armature core and a terminal ring of conductive material radially spring-fitted to the base and having a number of terminals connected to the coils, thereby forming a star connected armature winding.