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

FIELD: electricity.

SUBSTANCE: invention relates to the field of electrical engineering. The rotor comprises a cylindrical shaft of a nonmagnetic material, on which the inductor is put comprising strips of magnetic material alternating with poles made of material with high magnetic permeability contacting with strips by their side surfaces. Circular section longitudinal grooves equidistant from each other are made on the outer surface of the shaft, symmetrically to radially oriented planes. Strips of magnetic material are made in the form of plates, the edges of which facing the shaft are congruent to the outer surface thereof, and the ends of the plates facing the outer surface of the rotor are congruent to the mating surfaces of thin-walled fixing sleeve put on inductor. Pole surfaces facing the thin-walled fixing sleeve are protruding in relation to the magnet strip surfaces and are made with rounding whose radius of curvature is smaller than the radius of curvature of the surface of the thin-walled fixing sleeve in its contact with the magnetic strips. Magnetic strips are magnetized tangentially.

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.

3 cl, 2 dwg