Patent ID: 8169120

Claim:
A stator for an alternating current (AC) motor, comprising: a stator core having a divided structure comprising an inner stator core and an outer stator core fitted around the inner stator core while being connected to an inner circumference of the inner stator core, the inner stator core having a rotor insertion hole formed at the inner circumference of the inner stator core and a plurality of tooth members arranged in a circumferential direction at an outer circumference of the inner stator core to wind coils thereon; wherein the inner stator core comprises a plurality of layer units stacked in a lengthwise direction while being coupled together; wherein the plurality of layer units comprise ring-shaped integrated layer units each having a plurality of integrally-connected teeth, and separate layer units each having a plurality of separate teeth, the integrally-connected teeth of the integrated layer units and the separate teeth of the separate layer units forming the plurality of tooth members; and wherein the integrated layer units are disposed at opposite longitudinal ends of the inner stator core, and the separate layer units are disposed between the integrated layer units.