Patent ID: 6515396
Filing Date: 2003-02-04
Classification: H02K

Abstract:
A stator assembly comprising:a plurality of flux rings in the form of helical convolutions wound edgewise from a continuous strip ferromagnetic material to form a stator core; each flux ring having a plurality of spaced apart integrally formed lugs outwardly extending along an outer circumferential edge of the flux ring; each lug having deformable edges; a plurality of pole pieces, each having a body portion defined by an annular front portion, and first and second arms projecting laterally from the body portion and extending along a portion of the outer circumferential edge; each pole piece operatively secured between two adjacent lugs such that the annular front portion abuts the outer circumferential edge of the flux ring, and the arms abut the corresponding deformable edges of the lug; and wherein a portion of the deformable edges of the lug are deformed and expand to overlap the arms and wedge the pole pieces between the circumferential edge and the lugs.