Patent ID: 6486586
Filing Date: 2002-11-26
Classification: H02K

Abstract:
An alternator comprising:a rotor comprising: claw-shaped magnetic poles fitted onto a rotating shaft; and a cooling means disposed on said claw-shaped magnetic poles; and a stator comprising: a stator core disposed facing said rotor, said stator core having a plurality of slots; and a stator winding installed in said stator core, said stator being cooled by said cooling means; and a bracket for supporting said rotor and said stator, a passage for a cooling air flow generated by said cooling means being disposed inside said bracket, said stator winding comprising coil ends extending outwards from end surfaces of said stator core, and a shielding material being disposed so as to cover at least an inner circumferential surface of said coil ends, wherein at least one of a part of an outer circumferential surface of said coil ends and a part of an outer axial end surface of said coil ends is not covered by said shielding material.