| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotator for an induction machine capable of being downsized and increased in rotation speed, the rotator including: a rotor core having a plurality of slots arranged around a rotating shaft and extended in a shaft direction; and a secondary conductors made of conductive material and die-cast molded in the slots.SOLUTION: A rotor 1 for an induction motor M includes: a rotor core 15 having a plurality of slots 20 dispersed around a rotating shaft 10; and secondary conductors 25 each arranged inside the slot 20 by die-cast molding conductive material in the slot 20. Each slot 20 has: a slot outer peripheral part 20O extended radially on the outer peripheral side of the rotor core 15; a slot inner peripheral part 20I arranged on the inner radial side of the rotor core 15 and extended radially at a circumferential position rotated about a shaft core C from the position of the slot outer peripheral part 20O; and a slot intermediate part 20M connecting the slot outer peripheral part 20O and the slot inner peripheral part 20I. The slot 20 extends radially while forming a substantially crank shape. |
