ELECTRIC MOTOR WITH MULTILAYERED RHOMB-SHAPED WINDINGS Russian patent published in 2009 - IPC H02K3/47 H02K15/04 

FIELD: electricity.

SUBSTANCE: present invention relates to electrical engineering, particularly to electric motors, with windings with an air core, and can be used in rotors of dc motors, as well as in stators of electronic-commuted (EC) motors. The electric motor contains a winding with an air core, made from several separate windings, made from conductors. The separate windings are superimposed on each other and have such a shape that there is shifting in the region of at least two opposite corners. According to the first version of the invention, half the sides of the separate windings is in an inner hollow cylinder, and the other half is in an outer hollow cylinder without overlapping the inner hollow cylinder. According to the second version, half of the sides of separate windings is in a first plane, and the other in a second plane, without overlapping the first plane. The overlapping separate windings together form a flat winding, which comprises a first plane and a second plane. The separate windings are provided with an extra amount of conductor material as allowance in the shifting region, which forms preferably a U-shaped or loop-shaped bulge on the inner contour of the separate windings.

EFFECT: lower costs and easier assembly of windings with an air core for electric motors.

16 cl, 9 dwg