ELECTRIC MACHINE WITH PERMANENT MAGNETS ON ROTOR Russian patent published in 2025 - IPC H02K1/278 H02K21/14 

FIELD: electrical engineering.

SUBSTANCE: electrical machine comprises a stator magnetic core with a winding and a rotor containing a shaft with a non-magnetic bushing, on which the poles of a magnetically soft material are placed, between which there are prismatic magnets, magnetised tangentially and adjacent on both sides to the poles with their poles with the same magnetisation. Length of non-magnetic bushing exceeds axial length of rotor poles; at that, end surfaces of rotor poles and end surfaces of stator magnetic conductor are located in the same plane. On lateral sides on cylindrical surface of non-magnetic bushing there fixed are constant magnets the number of which is equal to number of rotor poles. Said permanent magnets have axial direction of magnetising force directed at contact with north pole of rotor to north pole, and at contact with south pole of rotor – from it. Between each pair of adjacent permanent magnets located at end sides of rotor poles there are inserts from non-magnetic material. At ends of non-magnetic bushing bushings are fixed made of magnetically soft material, between which bandage of same outer diameter is fixed.

EFFECT: high magnetic field induction in the working gap.

2 cl, 6 dwg