Patent ID: 8648514

Claim:
A rotary electric motor comprising: a stator comprising: a stator core that comprises a first core pair including a first stator core and a second stator core in which teeth that partition off slots that have openings on an inner peripheral side are disposed at a uniform angular pitch circumferentially so as to project radially inward from an inner peripheral surface of a cylindrical core back, the first stator core and the second stator core being disposed coaxially so as to be separated by a predetermined distance axially and such that circumferential positions of said teeth are aligned; and a stator coil that is mounted to said stator core; a first permanent magnet that is disposed on an outer peripheral surface of said core back of said first stator core, and that is magnetically oriented such that a direction of magnetization is only in a first radial direction, the first permanent magnet extending around an entire circumference of the outer peripheral surface of said core back of said first stator core; an axial magnetic path forming member that extends axially so as to link an outer peripheral surface of said first permanent magnet and an outer peripheral surface of a core back of said second stator core; and a rotor that is configured such that a first rotor core and a second rotor core on which salient poles are disposed at a uniform angular pitch circumferentially are fixed coaxially to a rotating shaft so as to be positioned on inner peripheral sides of said first stator core and said second stator core, respectively, and such that centers of the salient poles of said first rotor core are offset circumferentially by a pitch of half a salient pole from centers of the salient poles of said second rotor core.