Patent ID: 8648514
Filing Date: 2014-02-11
Classification: H02K

Abstract:
1. A rotary electric motor comprising: a stator comprising: 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.