ELECTRIC MACHINE ROTOR Russian patent published in 2017 - IPC H02K1/27 H02K1/28 

FIELD: electricity.

SUBSTANCE: rotor contains a cylindrical shaft of non-magnetic material, on which the inductor is put. The inductor is designed as a sleeve of composite magnetic strips oriented along the longitudinal axis of the rotor formed of permanent magnets. Between the strips, magnetized tangentially arranged rails, magnetized radially, with realisation Halbach magnetic circuit. On inductor a thin-walled retaining sleeve of a nonmagnetic material, preferably of titanium alloy, is fitted. The surface of the composite magnetic sleeve cavity in contact with the shaft, is cylindrical. The ends tangentially magnetized strips are congruent thereto facing surface of the latch sleeve of thin-walled, and ends radially magnetized strips protrude over the ends tangentially magnetized strips and formed with a fillet, the radius of curvature smaller than the radius of curvature of the outer surface of the thin wall of the retainer sleeve at its contact with them. The shaft is made monolithic, preferably from titanium or an aluminium alloy or a composite.

EFFECT: increasing the mechanical strength of the rotor, reducing the additional losses and parasitic moments caused by the higher harmonics of the inductor magnetic field.

4 cl, 2 dwg