| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an embedded-magnet rotary electric machine capable of reducing a waveform distortion of an induction voltage of an armature coil 5. <P>SOLUTION: An embedded-magnet motor has rectangular magnet holding cavities 8, 9 for embedding permanent magnets 15, 16 into a rotor core 6, formed in a V-shaped manner to be open on the outer periphery side of the rotor core 6. A cavity is provided between a pair of the mutually opposite magnet holding cavities 8, 9, as a magnet flux passage suppression gap 11. Further, there are provided an arcuate iron core layer, which is a rotor side end portion wall of the magnet holding cavities 8, 9, as a first bridge 10, and an arcuate iron core layer on the outer peripheral surface side of the rotor core of the magnet flux passage suppression gap 11, as a second bridge 12. A radial direction thickness L2 of the second bridge 12 is set to have a smaller value than that of the first bridge 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
