Ac generator

An AC generator, comprising:

• a rotor rotatably supported inside a casing;
• a stator comprising a stator core and a stator winding wound around the stator core, the stator being supported by the casing so as to surround the stator;
• a rectifier provided outside the casing on one side in an axial direction thereof, for rectifying an alternating current generated in the stator winding;
• a voltage regulator provided outside the casing on the one side in the axial direction thereof, for regulating a magnitude of an AC voltage generated in the stator;
• and
• a protective cover comprising a bottom portion and a peripheral wall portion having a cylindrical shape, the protective cover being configured to be locked to the casing so as to cover the rectifier and the voltage regulator, the protective cover including a ventilation hole,
• wherein the protective cover comprises a locking claw provided so as to extend outward in the axial direction from an open-side end surface of the peripheral wall portion, the locking claw comprising an axial portion and a claw portion provided so as to project radially from an end portion of the axial portion, the locking claw being configured to be locked to the casing, and
• wherein the protective cover comprises a locking-claw restricting portion formed on an outer peripheral edge portion of the bottom portion.