| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotor core which can enhance coupling force between adjacent segment pieces of core pieces and improve performance of a rotary electric machine. <P>SOLUTION: A rotor core 11 is configured by laminating a plurality of core pieces 12. In the rotor core 11, a plurality of permanent magnets 15 are buried so as to extend in the lamination direction of the core pieces 12 such that the magnets are disposed at intervals in a circumferential direction. Each of the core pieces 12 is configured by combining segment pieces 12a shaped by division between the permanent magnets 15 via plural fitting parts 16A, 16B in convexoconcave shapes. At least the fitting parts 16A of the fitting parts are arranged outside of a concentric circle C which passes through the gravity center M in each of the permanent magnets 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
