Rotary electric machine and assembling method thereof

The present disclosure provides a rotary electric machine including a housing, a stator, a rotor, an outer cover and a plurality of power cables. The stator is disposed in the housing and includes a stator core, a plurality of windings, a circuit board and a plurality of conductive pillars. The plurality of windings are wound around the stator core. The circuit board is fixed on the top of the stator core. The plurality of conductive pillars are electrically coupled with the circuit board. The rotor includes and an end cover. The end cover is disposed between the outer cover and the housing. The plurality of conductive pillars partially penetrate through a notch of the end cover, respectively. Two ends of each of the plurality of power cables are electrically coupled with the corresponding one of the plurality of conductive pillars and a connector, respectively.