CONTACT SYSTEM Russian patent published in 2019 - IPC H01H1/42 

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of instrument making, in particular to automation devices, which can be used for switching of electric circuits of technical objects of critical purpose. Contact system comprises a housing made from non-magnetic material, which isolates the internal volume of the switch, movable resilient contacts installed in pairs, fixed contacts and a rotary switch with pushers. Breaker is equipped with permanent magnets of alternating polarity, located diametrically and connected by an annular magnetic conductor. Outside the body has an axial ledge equipped with a rotary bushing equipped with additional similar permanent magnets of alternating polarity connected by an additional annular magnetic conductor. Turn angle of rotary bushing exceeds the angle of rotation of the recess, and the angular width of the magnets is not less than half the difference between the angle of rotation of the rotary bushing and the angle of rotation of the crossover. Cantilever elements with possibility of rotation are installed on fixed contacts. In the housing between each pair of movable resilient contacts there fixed is a stop from insulating material interacting in turn with each movable elastic contact in the initial and switched conditions of the contact system.

EFFECT: wider field of use with higher reliability of operation.

1 cl, 7 dwg