| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a permanent magnet type electric rotating machine increased in torque density by effective use of the magnetic flux of the magnet.SOLUTION: A permanent magnet type electric rotating machine has an aperture configured by connecting in its rotor a straight part and a circular arc part and arranging a permanent magnet in the aperture. In the permanent magnet, two shorter sides connecting two longer side end parts have end parts, either of the shorter side parts is polygonally shaped, and its contact with the straight part of the aperture effectively saturates a bridge part magnetically thereby to reduce leak magnetic fluxes, resulting in increased torque density of the rotating machine.</p> |
