| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a technique for improving efficiency of a permanent magnet rotating machine by increasing magnetic flux amount.SOLUTION: An external circumferential surface of a rotor 30 is formed of first curved line portions 30a to 30d and second curved line portions 30ab to 30da which have different radius curvature. First magnet housing holes 32a to 32d and second magnet housing holes 34a to 34d are provided on main magnetic pole portions a to d. In this way, intermediate bride portions 36a to 36d, first external circumferential bridge portions 37a1 to 37d1 and second external circumferential bridge portions 37a2 to 37d2 are formed. An external wall 32c1 of the first magnetic housing hole 32c is formed in an arc shape centered at a center point c11. Also, an external wall 34c1 of the second magnet housing hole 34c is formed in the arc shape centered at a center point c21 different from the center point c11.</p> |
