Patent ID: 6091169
Filing Date: 2000-07-18
Classification: H02K

Abstract:
An alternator for a vehicle, comprising:a stator including a stator iron core and a stator winding, the stator iron core having a plurality of slots, the stator winding being provided on the stator iron core and extending in the slots, the stator winding forming coil end groups at two ends of the stator iron core in an axial direction; anda rotor including a field iron core and a cooling fan, the field iron core being opposed to and located inward of the stator, the field iron core having magnetic pole claws, the cooling fan being located at an end of the field iron core in an axial direction;wherein 70% or more of an axial-direction height of one of the coil end groups which is located radially outward of the cooling fan overlaps the cooling fan with respect to a radial direction;a wind flow passage through which a cooling wind generated by the cooling fan passes is formed in the one of the coil end groups;the one of the coil end groups has inclined portions extending in a slanted direction with respect to an axial direction, and the wind flow passage is formed between the inclined portions.