| 摘要 |
<p>In a permanent magnet embedded type motor constituted by arranging a rotor core (12) constituted by laminating a plurality of electromagnetic steel sheets within a stator, a magnet providing magnetic poles of a rotor core (12) comprises: first magnets (14a) that are provided at the outer peripheral side of the rotor core (12) and are provided in a number corresponding to the number of poles in the circumferential direction of the rotor core (12) and second magnets (14b) that are respectively arranged at the radially inward face of the first magnets (14a). The first magnets (14a) and second magnets (14b) are magnetised so that the focal points of magnetic alignment are arranged on the outside or on the inside of the rotor core (12).</p> |
