| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotary electric machine in which torque ripples are reduced by increasing the number of poles of a permanent magnet without increasing the number of core teeth. <P>SOLUTION: A rotary electric machine comprises a rotary shaft 11, a rotor 12 including an annular permanent magnet 12a with which positive and negative magnetic poles are formed alternately in a circumferential direction, an outer stator 13 which is disposed in the outer circumference of the rotor 12 and includes a plurality of outer stator core teeth 13c and an outer stator winding wire 13b, and an inner stator 14 which is disposed in the inner circumference of the rotor 12 and includes a plurality of inner stator core teeth 14c and an inner stator winding wire 14b. The number of the stator core teeth 13c is equal to that of the stator core teeth 14c, a three-phase alternating current is applied to the stator winding wires 13b and 14b, and the stator winding wires 13b and 14b are disposed to be deviated at an electric angle 360° during in-phase electrification and to oppose the inner stator core teeth 14c to a slot opening of the neighboring outer stator core teeth 13c. <P>COPYRIGHT: (C)2013,JPO&INPIT |
