| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor laminated core wherein the shape of a permanent magnet holding portion for fixing a permanent magnet outside in the radial direction is constant, the permanent magnet can be accurately held on the permanent magnet holding portion, and the thickness of a rotor laminated core is prevented from being uneven due to swelling in the direction of thickness that is caused when a core piece is bent. SOLUTION: Permanent magnet holding protrusions 15, 16 having a coupling portion 11 in the center are provided at the opposite ends of adjoining segment core pieces 12. The permanent magnet holding protrusions 24 of the upper and lower segment core pieces 12 overlapping with the permanent magnet holding protrusions 15, 16 where the coupling portions 11 are formed are provided with a receiving portion 33. A portion swelled in the direction of thickness formed when a coupling portion 11 is bent is fit into this receiving portion. COPYRIGHT: (C)2009,JPO&INPIT |
