| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce cogging torque and to enlarge a counter electromotive voltage constant. <P>SOLUTION: A rotary electric machine includes: a stationary section having an annular stator; and a rotary section having a rotor magnet 23 installed inside or outside of the stator. A stator core 351 of the stator includes: an annular core back; a plurality of teeth 354 extending from the core back toward the rotor magnet 23; a teeth body section 355 in which the number of magnetic poles of the rotor magnet 23 is 14, the number of the plurality of teeth is 12 and the plurality of teeth extend from the core back toward the rotor magnet 23; and a teeth tip section 356 spreading out to both sides in a circumferential direction compared to the teeth body section 355 on a rotor magnet side of the teeth body section. In the stator core, a slot interval angle θ being an angle which respective slot intervals form with a center axis as a center is 1° or above and 11° or below. <P>COPYRIGHT: (C)2012,JPO&INPIT |
