A rotary electric machine, comprising: a rotary electric machine main body; and an electric power conversion device integrated with the rotary electric machine main body, and located so that the rotary electric machine main body and the electric power conversion device are arranged in one line along an axial direction, wherein the rotary electric machine main body includes a housing having a load side bracket and an anti-load side bracket, a rotor rotatably arranged in the housing, a fan fixed at an end portion of the rotor on an anti-load side in the axial direction, and a stator held in the housing and arranged coaxially with the rotor and on an outer diameter side of the rotor, the electric power conversion device is arranged outside the anti-load side bracket in the axial direction, so as to face the anti-load side bracket and attached to the anti-load side bracket, the electric power conversion device including a cover having a bottom portion and a cylindrical portion, an inlet port is formed in the anti-load side bracket within a region that faces the rotor in the axial direction, an exhaust port is formed in the anti-load side bracket within a region outside the fan in a radial direction, and a blocking member is provided so as to block a gap between the cover and the anti-load side bracket; wherein the blocking member is an insert-molded article including a bus bar, which electrically connects a stator winding of the stator to the electric power conversion device; characterized in that the insert-molded article is arranged so as to be exposed to cooling air to be exhausted from the exhaust port; wherein the insert-molded article includes a bus bar radiation fin protruding from the bus bar or from a molded resin included in the insert-molded article, and the bus bar radiation fin is arranged so as to be exposed to the cooling air to be exhausted from the exhaust port. a rotary electric machine main body; and an electric power conversion device integrated with the rotary electric machine main body, and located so that the rotary electric machine main body and the electric power conversion device are arranged in one line along an axial direction, wherein the rotary electric machine main body includes a housing having a load side bracket and an anti-load side bracket, a rotor rotatably arranged in the housing, a fan fixed at an end portion of the rotor on an anti-load side in the axial direction, and a stator held in the housing and arranged coaxially with the rotor and on an outer diameter side of the rotor, a housing having a load side bracket and an anti-load side bracket, a rotor rotatably arranged in the housing, a fan fixed at an end portion of the rotor on an anti-load side in the axial direction, and a stator held in the housing and arranged coaxially with the rotor and on an outer diameter side of the rotor, the electric power conversion device is arranged outside the anti-load side bracket in the axial direction, so as to face the anti-load side bracket and attached to the anti-load side bracket, the electric power conversion device including a cover having a bottom portion and a cylindrical portion, an inlet port is formed in the anti-load side bracket within a region that faces the rotor in the axial direction, an exhaust port is formed in the anti-load side bracket within a region outside the fan in a radial direction, and a blocking member is provided so as to block a gap between the cover and the anti-load side bracket; wherein the blocking member is an insert-molded article including a bus bar, which electrically connects a stator winding of the stator to the electric power conversion device; characterized in that the insert-molded article is arranged so as to be exposed to cooling air to be exhausted from the exhaust port; wherein the insert-molded article includes a bus bar radiation fin protruding from the bus bar or from a molded resin included in the insert-molded article, and the bus bar radiation fin is arranged so as to be exposed to the cooling air to be exhausted from the exhaust port.