Patent ID: 6933644

Claim:
A magnetic levitation motor which rotates a rotor in a levitated state with respect to a fixed stator, the magnetic levitation motor comprising: a direct-current magnetic field generating means for forming a magnetic flux having a radial pattern with an axis at a center in the stator and the rotor; a stator core having salient-pole portions formed so as to outwardly protrude in a radial pattern; a first stator winding for generating a levitation control magnetic flux to control levitation of the rotor in a radial direction; and a second stator winding for generating a rotating magnetic field to rotate the rotor, the rotor having a yoke portion and a motor magnet which are opposed to said stator core of the stator; wherein said yoke portion has a motor magnet attachment step portion and said motor magnet attachment step portion has a thickness in an axial direction, smaller than a thickness of the stator in the axial direction, and a thickness in a radial direction, substantially equal to a thickness of the motor magnet.