ROTOR OF ELECTRIC MACHINE Russian patent published in 2015 - IPC H02K1/27 

FIELD: electricity.

SUBSTANCE: rotor comprises at the shaft 1 a magnet core 2 with cylindrical outer surface, which is shaped as a package of made of sheets of soft magnetic material with cylindrical openings 3 open from the shaft 1 side and spaced evenly in circumference at the same distance from its bore, and permanent magnets 4 shaped as hollow cylinders are placed into the above openings. Each permanent magnet 4 is shaped by two parts 5 and 6 of a hollow cylinder cut along its diameter. Parts 5 and 6 of magnet 4 are magnetized radially in regard to the axial line O1 of the cylinder in opposite directions and placed into openings 3 so that their longitudinal cross sections touch at the line of rotor 1 radii. In inner cavities of hollow cylinders of magnets 4 soft magnet rods 7 are placed close to their inner surface. Each pair of lateral surfaces faced towards each other and the rotor bore and pole 8 lying between them and the rotor bore have the same polarity alternating along the rotor bore.

EFFECT: increased power due to increased surface of magnet poles and increased magnetic flux on them.

2 cl, 2 dwg