| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor for an induction rotary electric machine capable of suppressing deformation of an end ring and preventing a boundary part from being broken, and a manufacturing method of the rotor.SOLUTION: A rotor for an induction rotary electric machine includes: an annular rotor core 23 including a rod-like conductor 24 provided in a first through-hole 231; an end face plate 26 including a protrusion 27 that protrudes from an outer peripheral part of a second through-hole 261 provided at a position matched with the first through-hole and formed of materials having excellent mechanical strength and thermal strength, provided in both end portions of the rotor core 23 in an axial direction; and an end ring 27 which short-circuits the conductor 24 and joins the conductor 24 to the end face plate 26. In the protrusion 27, a first protrusion 27a disposed radially inside is cast into the end ring 25, and a second protrusion 27b disposed radially outside is disposed radially outside of a radially outer end face of the end ring 25 and is brought into contact with the radially outer end face of the end ring 25. |
