Laminated stator core assembly for small motor, has several I-shaped single magnetic poles, where connecting sides of poles have S-shaped cross section, and poles have recess and projections

摘要

The assembly has several I-shaped single magnetic poles (1), where the connecting sides of the poles have a S-shaped cross section. The poles have projections (11) and recesses (12), which are arranged corresponding to the connecting sides. The centre point of the ring of the recess lies at the line of the end surface. Semi circular grooves (13) are provided at the rear side of the poles, where the grooves run parallel to one another. An insulating unit is filled within the grooves.