Patent ID: 8754561
Filing Date: 2014-06-17
Classification: H02K

Abstract:
1. A rotor for a rotary electrical machine, the rotor being rotatable around an axis, the rotor comprising: two polar wheels, each having a series of polar claws extending in an axial direction, and having a substantially trapezoidal cross-section on a plane perpendicular to the axis, the polar claws extending from an outer radial end of one of the polar wheels in the direction of the other polar wheel, the polar wheels being arranged such that each claw of the polar wheel is situated in one of interpolar gaps existing between two consecutive polar claws of the other polar wheel; and magnetic assemblies each arranged respectively in at least one of the interpolar gaps, at least one of the magnetic assemblies comprising a first magnet and a second magnet superimposed in a radial direction; the at least one of the magnetic assemblies further comprising at least one magnetic element made of magnetic material and disposed between the first and second magnets; the at least one magnetic element being a plate with a slight radial thickness.