LUNDELL TYPE AXIAL FLUX ROTOR AND MOTOR VEHICLE ALTERNATOR COMPRISING SUCH A ROTOR

摘要

The rotor (6) according to the invention is an axial flow, and is intended to a rotary electrical machine. The rotor comprises teeth (9, 10) arranged around an axial core (17) by plates (13, 14). According to the invention, the claws, the plates and the axial core form a heterogeneous magnetic circuit. According to another characteristic, the axial core is formed of a first magnetic material having a first relative permeability greater than the second relative permeabilities of the second magnetic material forming the claws and the plates for a given magnetic field. According to another characteristic, the first magnetic material has a first magnetic induction of saturation of greater than the second magnetic inductions of the saturation of the second magnetic materials.