PERMANENT MAGNET ROTOR

摘要

The present utility patent refers to a rotor with permanent magnets to be used particularly in synchronous motors, being the format of the external part sinusoidal (14). The location and the format of the cross section of the 2permanent magnets (13) are adapted in such a way that the density of the magnetic flux at the air gap, between the stator (11) and the rotor (12), varies substantially in a sinusoidal way Additionally, said rotor (12) comprises holes (22) at the interpolar area which, together with the magnet cavities (17), form bridges (26) to support the shoes (23) serving as barriers to the dispersion of the exciting magnetic flux of the permanent magnets (13).