Rotary electric machine and manufacturing method thereof

A rotary electric machine comprising:

• a stator which includes a stator core which includes teeth which are protruded from inner circumference wall surfaces of core back portions having an arc shape, bobbins which are made of a resin and are respectively arranged on end surfaces in a shaft direction at both sides of the stator core, and coils which are wound around the teeth via the bobbins;
• and
• a rotor which is rotatably arranged at an inner circumference side of the stator;
• wherein
• the bobbins, which are arranged on at least one of the end surfaces in a shaft direction of the stator core, include coil winding portions, which are arranged at end surface in a shaft direction of the teeth, on which the coils are wound;
• and flange portions, which are arranged at end surface in a shaft direction of the core back portions, at which a plurality of bus ring maintaining portions are formed, and
• a plurality of bus rings, which are made of a plane sheet having a band shape, are concentrically arranged in a state where the bus rings are inserted to the bus ring maintaining portions, and each of the bus rings includes coil connecting portions which are protruded from the bus ring maintaining portions to a shaft direction, and
• terminals of the coils are arranged in such a way that the terminals of the coils are protruded toward an outer side in a diameter direction with respect to the coil connecting portions, and the terminals of the coils are connected to plane tip portions of the coil connecting portions.