Patent ID: 8587178

Claim:
A rotor of an high speed induction motor, the rotor comprising: a stacked body having a plurality of loop type steel sheets stacked to form a cylinder, the stacked body having a plurality of slots circumferentially formed in a lengthwise direction of the stacked body; a loop type upper end ring disposed on the upper end of the stacked body and having a plurality of upper through-holes corresponding to the plurality of slots of the stacked body; a loop type lower end ring disposed on the lower end of the stacked body and having a plurality of lower through-holes corresponding to the plurality of slots of the stacked body; a plurality of conductive bars coated along the entire length with fusible bonding flux by electroplating and inserted through the upper through-holes, the slots, and the lower through-holes such that the conductive bars are integrally bonded into the upper through-holes, the slots, and the lower through-holes, following the fusion and solidification of the fusible bonding flux; a loop type upper fixing ring coupled to an outside of the upper end ring; and a loop type lower fixing ring coupled to an outside of the lower end ring.