ELECTRIC MACHINE Russian patent published in 2025 - IPC H02K1/278 H02K21/14 

FIELD: electrical engineering.

SUBSTANCE: electrical machine comprises a stator housing and a rotor sleeve made from uncharged ferromagnetic material, a shaft, two or more laminated stator packages installed in the housing with axial gaps, in the slots of which there is a multiphase p-pole winding, laminated rotor packages with p/2 teeth, which form pairs with stator packages. One or several excitation coils are fixed on stator in axial gaps between pairs of stator and rotor packages. Permanent magnets are installed in slots of rotor packages. At the same time at the bottom of each slot of the rotor there is a magnetically conducting projection, on which a magnet or magnets are attached. Section of the protrusion in the narrowest point is less than the section of the protrusion adjoining the pole of the permanent magnet.

EFFECT: improving reliability of the electric machine by reducing the demagnetizing force acting on the magnets, preventing the demagnetisation of the magnets, as well as increasing the efficiency and specific moment and power of the machine.

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