| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rotor core enabling an adhesive or a resin material to securely penetrate between steel plates of a steel plate laminated body forming the rotor core. <P>SOLUTION: In a structure of a rotor core, a large number of steel plates 2 each having magnet insertion holes 3a formed thereon are laminated to form a steel plate laminated body, and the magnet insertion holes 3a, 3a of each steel plate 2 are laminated and superposed on each other to form slot portions 3 extending in the steel plate laminating direction. A permanent magnet 4 is inserted to the slot portion 3 and fixed with a resin material 5. A thin-wall portion 6 is formed beforehand at an opening edge of the magnet insertion hole 3a formed on the steel plate 2, and an opening edge gap 7 corresponding to the thin-wall portion 6 is installed between the laminated steel plates 2, 2. <P>COPYRIGHT: (C)2013,JPO&INPIT |
