| 摘要 |
A contour line (311a) of the outer circumference of a first-layer magnet hole (311) is formed in an arc shape that passes through a total of three intersection points, i.e.: the intersection point (311a3) of a reference magnetic flux line and a d-axis, with a magnetic flux line at a position inward from the circumferential edge of a rotor core (31) by only a specific number of magnetic flux lines serving as the reference; and intersection points (311a1, 311a2) of sides which are the sides of both circumferential ends of the reference magnetic flux line and the magnet hole (311), and which are set to be inward from the circumferential edge of the rotor core (31) by only the dimensions of a bridge (314). Due to this configuration, reluctance torque and magnetic torque can be utilized to the upmost while torque ripple is suppressed, and a low-cost rotary electric machine can be obtained with simple processing. |
