Patent ID: 6900566

Claim:
A vehicle ac generator, comprising: a stator having a stator winding; a rotor disposed to oppose the stator in an inner periphery of the stator; a rectifying device that converts ac voltage generated in the stator winding into dc voltage; and a protection cover surrounding the rectifying device, wherein a protection cover includes a cover body and a protecting wall portion intearally formed with the cover body, the cover body forms a plurality of air intake openings on an axial end surface through which cooling air created by rotation of the rotor is sucked in, the protecting wall portion extends from the axial end surface of the cover body in an axially outward direction at a position higher than the air intake openings when mounted on a vehicle, and the protection cover further includes a connecting portion integrally formed therein, the connecting portion is located between the cover body and the protecting wall portion such that the protecting wall portion is held at a position separate from the cover body.