Patent ID: 7830062

Claim:
A motor comprising: a stator including: a stator core including a plurality of teeth each extending in a radial direction centered about a central axis, and arranged in a circumferential direction so as to be spaced evenly apart from one another; a plurality of coils disposed in a plurality of slots each defined by a pair of the teeth located next to one another, and being defined by a plurality of wires electrically connected with each other and each including a portion extending in an axial direction; and a busbar unit arranged axially above the stator core and connected to each of the plurality of wires; wherein the plurality of wires include an angular wire having a substantially rectangular cross section at a portion thereof corresponding to a location of the slot when viewed from one end of the axial direction and a round wire having a substantially circular cross section at a portion thereof corresponding to a location of the slot when viewed from the one end of the axial direction; each slot includes the angular wire and the round wire arranged in the radial direction therein, and the round wire is arranged radially inward of the angular wire; the angular wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the angular wire; the round wire includes a pair of straight line portions each accommodated in the slot and extending in the axial direction, and a curved connecting portion integrally connecting the pair of the straight line portions of the round wire; the connecting portions of the angular wires are curved in a direction radially away from the straight line portions of the round wires and the connecting portions of the round wires are curved in a direction radially away from the straight line portions of the angular wires; and the connecting portions of the angular wires and the connecting portions of the round wires extend in mutually opposite radial directions.