Asynchronous machine e.g. power converter-fed asynchronous machine has copper rods having high electrical conductivity, which are arranged within radial outer portions of grooves tapered along axial direction of bundle of laminations

摘要

The asynchronous machine has a bundle of metal sheet laminations that is arranged along axial direction of a cylindrical short-circuit rotor. Grooves (11) are tapered along axial direction of the bundle of laminations provided with aluminum material. Slots (12) are formed corresponding to the grooves that are radially extended along outer direction. Copper rods (14) having high electrical conductivity, are arranged within the radial outer portions of the grooves. An independent claim is included for manufacturing method of short-circuit rotor.