Patent ID: 7091646

Claim:
A motor structure comprising: a rotor having a driving portion and a magnetic element; an outer side of the driving portion having a stepped shape including a first annular bottom and a second annular bottom; normal directions of the first and second annular bottoms being parallel to an axial direction of the driving portion; and the first annular bottom being at an inner side with respect to the second annular bottom; the magnetic element being assembled to the first annular bottom of the driving portion; an axial fan installed at an outer periphery of the rotor; and a stator located below the rotor; the stator including an electrode sheet, a coil, and a seat; the electrode sheet being installed at an upper side of the coil; the coil winding around a stator frame assembling the seat; a magnetic induction portion being protruded from the electrode sheet; and the electrode sheet being installed to the seat; wherein the rotor is pivotally installed to the stator and the magnetic induction portion of the electrode sheet is at a lower side the magnetic element so that after conduction, the coil is interacted with the magnetic element by using phase differences therebetween.