INNER ROTOR GENERATOR

PROBLEM TO BE SOLVED: To provide an inner rotor generator which can surely prevent winding collapse of an armature coil, while achieving size reduction and high performance. SOLUTION: A pair of sheet materials 22a, 22b of a non-magnetic material are provided to both end surfaces in the axial direction of a stator 4, and the sheet materials 22a, 22b are constituted of an annular part 23 corresponding to the stator core 7 and a projection part corresponding to the tooth 10. First claw parts 25a, 25b projecting toward the outside in the axial direction are formed between the adjacent projection parts of the annular part 23, and second claw parts projecting toward the outside in the axial direction are formed at the projection part. The tooth 10 has a pair of small width parts 21a, 21b with their width in the circumferential direction stepwise reduced toward both ends from the center in the axial direction, wherein the small width parts 21a, 21b are displaced from the center in the circumferential direction of the tooth 10 to the receiving side of the winding start end 11a of the armature coil 11. COPYRIGHT: (C)2009,JPO&INPIT