Rotating electric machine for vehicle

A rotating electric machine for a vehicle, the machine comprising:

• a rotor fixed to a rotation shaft;
• a stator for generating an alternating current as the rotor rotates;
• a frame member for holding the rotor and the stator;
• a rectifier fixed to an outer side of the frame member and constituting a rectification circuit which rectifies the alternating current generated by the stator;
• a battery terminal protruding from the rectifier and configured to be connected with a battery cable;
• an insulating member having an inner peripheral surface that forms a through hole in which the battery terminal is inserted, a gap being present between the inner peripheral surface of the insulating member and an outer peripheral surface of the battery terminal;
• and
• a waterproof cap attached to the insulating member so as to cover a connection part of the battery terminal with the battery cable in a waterproof state, at least a portion of the connection part of the battery terminal being located within an internal volume of the waterproof cap, wherein
• the insulating member includes an annular protruding part protruding inward from the inner peripheral surface and toward a central axis of the through hole, and
• the protruding part spans the gap between the inner peripheral surface of the insulating member and the outer peripheral surface of the battery terminal so as to be in contact with the outer peripheral surface of the battery terminal in such a state that the protruding part is elastically deformed.