Patent ID: 9252634
Filing Date: 2016-02-02
CPC Classification: H02K

Claim Text:
1. A synchronous motor comprising: a rotor including a rotor core constituted of segment poles disposed in a ring, each of the segment poles having a magnetic salient pole characteristic; an outer stator including an outer stator core disposed radially outward of the rotor with a gap therebetween, and a multiple-phase outer stator winding wound on the outer stator core; and an inner stator including an inner stator core disposed radially inward of the rotor with a gap therebetween, a multiple-phase inner stator winding wound on the inner stator core, a lateral stator including a lateral core disposed opposite to an axial end surface of the rotor, and a lateral stator winding wound on the lateral core, the rotor being rotated in synchronization with a rotating magnetic field generated when the multiple-phase outer stator winding and the multiple-phase inner stator winding are applied with a multiple-phase AC voltage, wherein a lamination thickness as an axial length of the outer stator core and a lamination thickness as an axial length of the inner stator core are shorter than a lamination thickness as an axial length of the rotor core, and the outer stator winding, the inner stator winding and the lateral stator winding are formed integrally and disposed continuously with one another.