Patent ID: 6531802
Filing Date: 2003-03-11
Classification: H02K

Abstract:
An AC generator for a vehicle comprising:a field rotor having: a field coil; and a Lundel-type iron core having a cylindrical part on which said field coil is wound; a yoke part extending radially outward from said cylindrical part; and a claw-like magnetic pole part connected to said yoke part and surrounding said field coil; wherein said field coil is wound on an insulating bobbin and contacts said cylindrical part, wherein an axial end surface of said bobbin is fixed to said yoke part through an adhesive agent; a stator having: an iron core confronting said rotor; and a multiple-layer winding mounted on said iron core of said stator; wherein an axial length of said iron core of said stator is set larger than an axial length of said cylindrical part; wherein an axial thickness of said yoke part is set larger than a radial thickness of said claw-like magnetic pole part; and wherein said cylindrical part is separate from said yoke part and adjacent to said yoke part with said cylindrical part fitted within said yoke part.