POLARIZED ELECTROMAGNETIC DRIVE OF SWITCHGEAR Russian patent published in 2022 - IPC H01F7/122 H01H51/22 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to electrical apparatus. The polarized electromagnetic drive contains a magnetic circuit made of two cores located in parallel in the housing. At least one permanent magnet is installed between the cores. The making and breaking windings are located on the cores. A spring-loaded armature is placed opposite the poles of the cores. The ferromagnetic shunt is installed above the permanent magnet, coaxially with it, with the possibility of reciprocating movement relative to the permanent magnet using a crankshaft with a crank journal, installed with the possibility of rotation in a stationary holder. The crank journal of the crankshaft is eccentrically installed in the through hole in the shunt along its longitudinal axis perpendicular to the direction of its reciprocating motion. The end of the torsion spring is fixed at one end of the crankshaft, and its other end is fixed on the fixed holder.

EFFECT: simplification of design and reduction of dimensions, reduction of labor intensity of shunt return to its original position and increase of reliability.

1 cl, 8 dwg