LINEAR ASYNCHRONOUS MOTOR Russian patent published in 2014 - IPC H02K41/25 

FIELD: electricity.

SUBSTANCE: invention refers to electric engineering and can be used in electric drives with non-linear or reciprocal motion of actuators. Linear asynchronous motor (LAM) contains inducer 1 consisting of core 2 and three-phase winding 3, and secondary element 4 connecting core 5 with grooves containing central straight portions and side portions adjoining them at both sides at equal angles. Electroconductive rods have the shape of the above grooves and are closed at both sides by electroconductive elements 6. Electroconductive rods place in side parts of grooves consist of two sections interconnected by closing contacts 14 of reed relays, which outputs 7 of windings are connected to direct-current source through reed relays 8. Inducer 1 contains permanent magnets 9 interconnected with the inducer mechanically and located at its both sides.

EFFECT: increasing efficiency factor and possible increase of transversal mechanical efforts only when inducer symmetry is violated in regard to the secondary element.

2 dwg