ELECTRIC MACHINE ROTOR Russian patent published in 2016 - IPC H02K1/27 

FIELD: electrical equipment.

SUBSTANCE: invention relates to electrical engineering, particularly to electrical engineering and can be used in designing of electric generators and motors with high frequency of rotation. Electric machine rotor comprises a hollow shaft of non-magnetic material and put on it a magnetic inductor of cylindrical shape, containing permanent magnets, poles of material with high magnetic permeability and non-magnetic metal wedges. Hollow shaft is made of discs of equal resistance with same outer diameter made of nonmagnetic material and rigidly attached by end surfaces to each other. Inductor comprises bars oriented along longitudinal axis of rotor made of permanent magnets magnetised so that between magnets, magnetised in radial direction, there are magnets, magnetised in tangential direction to form Halbach magnetic circuit. Radially magnetised magnets are rested into inner surfaces of poles faced to them, while tangentially-magnetised magnets are rested into inner surfaces of wedges faced to them.

EFFECT: technical result is increased induction at poles, reduction of moments of inertia of rotor, reduced dynamic loads on bearings of electric machine.

2 cl, 2 dwg