| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnet-embedded synchronous motor that has enhanced torque density and reduced cogging. <P>SOLUTION: A rotor 1 of a rotary electric machine comprises: a rotor shaft 3 as the center of rotation; and an approximately cylindrical rotor core 5 that is provided on an outer side of the rotor shaft 3. On an outer edge thereof, the rotor core 5 has eight permanent magnet members 11 that are disposed at regular intervals in a circumferential direction of the rotor core 5 and extend in an axial direction of the rotor shaft 3. The rotor core 5 is formed by laminating approximately annular magnetic steel sheets 15 in the axial direction of the rotor shaft 3. The rotor 1 also includes a ring bonded magnet member 7 that covers an outer circumferential surface of the rotor core 5 and that includes permanent magnet powder and resin material. The bonded magnet member 7 is anisotropically magnetized in such a manner that poles of the bond magnet member 7 face respective poles, having the same polarity, of the permanent magnet members 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
