Rotor of an electric machine

摘要

The rotor (10) of an electric machine comprises a rotor body ((11), axial slots (14) in the rotor body (11), a plurality of tubular conductive bars (17) in each axial slot (14), apertures (20) in at least some of the tubular conductive bars (17). The apertures (20) are provided on walls of tubular conductive bars (17) that intersect a radial axis (21) of the rotor body (11). The rotor (10) includes tubular elements (25) that are housed in at least some of the holes (20) and pass through at least one tubular conductive bar (17).