Patent ID: 8350426
Filing Date: 2013-01-08
Classification: H02K

Abstract:
1. An automotive rotary electric machine comprising: a rotor that is rotatably supported inside a casing; a stator comprising: said stator being supported by said casing so as to surround said rotor; a rectifying apparatus comprising: said rectifying apparatus being disposed outside a first axial end of said casing, and rectifying alternating-current electric power that is generated by said stator winding; a resin-molded body into which a voltage regulator positive electrode terminal and a voltage regulator negative electrode terminal are insert-molded so as to be exposed at respective first surfaces of first and second flange portions, said resin-molded body being disposed outside said first axial end of said casing; a voltage regulator that is attached to said resin-molded body so as to be electrically connected to said voltage regulator positive electrode terminal and said voltage regulator negative electrode terminal, said voltage regulator adjusting magnitude of an alternating-current voltage that is generated by said stator; and a resin protective cover that is prepared so as to have a cup shape that is constituted by a floor portion and a tubular peripheral wall portion, and that is mounted to said casing so as to cover said rectifying apparatus and said voltage regulator, wherein said rectifying apparatus is mounted to said casing by fastening together said positive-side heatsink, said negative-side heatsink, and said circuit board on an outer end surface at said first axial end of said casing using a plurality of rectifying apparatus fixing screws such that said negative-side heatsink is in a state of electrical connection with said casing; wherein said resin-molded body is mounted to said casing by fastening together said first flange portion and said positive-side heatsink on said outer end surface of said first axial end of said casing using a voltage regulator fixing first screw so as to be electrically insulated such that said voltage regulator positive electrode terminal and said positive-side heatsink are in a state of electrical connection, and fastening said second flange portion to said outer end surface of said first axial end of said casing using a voltage regulator fixing second screw such that said voltage regulator negative electrode terminal is in a state of electrical connection with said casing; and wherein screw loosening restricting lugs are respectively disposed so as to project from said floor portion of said protective cover so as to face said voltage regulator fixing first screw and said voltage regulator fixing second screw so as to have a predetermined clearance in an axial direction.