Patent ID: 6784577
Filing Date: 2004-08-31
Classification: H02K

Abstract:
A rotor for a vehicular alternating current generator, comprising:a rotary shaft; a field core press-fitted around the rotary shaft; an insulating bobbin fitted around the field core, the insulating bobbin having a cylindrical coil-winding body and a flange extending in a radially outward direction from an axial end of the coil-winding body, the flange having a first surface and a second surface opposite to each other, the first surface being on a side of the coil-winding body and the second surface being an axial end surface of the bobbin; and a field coil wound around the coil-winding body and having a coil winding finishing end, wherein the flange is formed with a first hook portion that directs the finishing end opposite to a winding direction of the field coil by wrapping the finishing end only approximately halfway around the first hook portion, a second hook portion that directs the finishing end further in a radially inward direction along the second surface of the flange and a third hook portion that directs the finishing end further in an axial direction.