ROTOR MAGNETIC SYSTEM WITH CONSTANT MAGNETS AND METHOD OF ITS MANUFACTURE Russian patent published in 2018 - IPC H02K1/27 H02K21/14 H02K15/03 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to rotor device of electric machines with excitation from permanent magnets. Rotor magnetic system with permanent magnets contains annular cylinder consisting of permanent magnets comprising unidirectional magnetization, made in form of bipolar magnetic system. Inner part of ring cylinder is mounted on outer part of rotor magnetic circuit, made of high-alloy steel. Manufacture of claimed magnetic rotor system is carried out by assembling unmagnetized preforms of permanent magnets in annular cylinder, then magnetizing them in unidirectional diametrical direction with possibility of forming bipolar magnetic system with magnetic field closest to sinusoid on outer side of magnet annular cylinder.

EFFECT: increase in energy characteristics.

2 cl, 3 dwg