Patent attributes
A rotor 1 of an AC generator for vehicle according to the invention in which a conductor 6 is wound around a spool 5 in multi-rows and multi-layers is characterized in that gaps between the conductors at least at the deep portion 22 out of the gaps between the conductors from the innermost layer to the outmost layer are filled evenly with resin 7 forming resin layers. A manufacturing method of a rotor 1 of and AC generator for vehicle according to the invention includes the steps of applying a fluid resin material 7 to a conductor 6 immediately before the conductor 6 is wound on a spool 5, and heating the entire structure to cause the resin 7 to be heat-cured after the conductor 6 to which the fluid resin material 7 has been applied is wound around the spool 5 in multi-rows and multi-layers.
