ROTORE DI MACCHINA ELETTRICA, IN PARTICOLARE DI UN MOTORE ELETTRICO PER L'AVVIAMENTO DEL MOTORE A COMBUSTIONE INTERNA DI UNA AUTOVEICOLO EPROCEDIMENTO PER LA SUA REALIZZAZIONE.

摘要

The rotor for an electrical machine comprises a stack of laminations (1) in the periphery of which are provided radial slots (2), each of which accommodates a group of insulated electrical conductors (3) and has a mouth portion (2a) comprising two opposite projections (4'), the distance (W) between which is substantially equal to the diameter of a conductor (3). Inwardly of the mouth portion (2a), the slots (2) have a section which is larger than the diameter of a conductor (3), decreasing radially to the base of the slot (2) in which the section is substantially equal to the diameter of a conductor (3). The conductors (3) are deformed plastically and the flattened portion of the outermost conductor (3) is engaged against the opposite projections (4') preventing the conductors (3) from emerging from the slots (2). The depth of the slots (2) is less than the sum of the diameters of the non-deformed conductors (3) accommodated in the slots (2) themselves. $$