ELECTRICAL MACHINE Russian patent published in 2015 - IPC H02K21/22 H02K1/27 H02K5/04 H02K7/09 

FIELD: electricity.

SUBSTANCE: electrical machine comprises the stator bearing housing, imbricated stator core with slots on its outer cylindrical surface with winding coils placed into the above grooves. Stator is arranged inside the rotor cylindrical cavity. The rotor comprises an inductor coil. The rotor body is implemented as two discs from non-magnetic material detachably attached to each other and faced to each other with their cavities. The parallelepiped-shaped permanent magnets of the inductor coil and non-magnetic trapezoidal wedges are implemented as bars aligned with a longitudinal axis of the rotor and installed with formation of a composite ring with alternation of pole polarity. The electrical machine is fitted with the radial and thrust magnetic bearing assemblies located on ledges of the bearing housing of the stator and L-shaped cylinders, coaxial with them, implemented on plates of the rotor housing. On cylindrical ledges of the bearing housing of the stator the stator parts of composite permanent magnets forming the Halbach magnetic circuit are rigidly fixed. On the surfaces of L-shaped cylinders facing towards them the rotor parts of composite permanent magnets forming the Halbach magnetic circuit are fixed. Composite permanent magnets form radial bearings.

EFFECT: reduction of mass-dimensional characteristics, improvement of reliability of operation, increase of electrical machine service life.

2 cl, 2 dwg