ELECTROMAGNETIC POLARISED SWITCH

摘要

FIELD: electricity.SUBSTANCE: invention is intended for automatic systems at explosive hazardous facilities subjected to external impacts and vibration. The electromagnetic polarised switch comprises hinged armature mounted at the central axis between two parallel magnetic cores with control circuits, a bridging unit with movable contacts, which is related to the armature, and fixed contacts. The armature is symmetrical; permanent magnets are placed diametrically in its slots; the magnets are made of hard-magnetic material with high coercive force and magnetised in direction to the tangent line of the armature turning circle. The bridging unit is placed at the central axis.EFFECT: increased resistance to impact and vibration action, increased number of contacts with maintained dimensions and weight, as well as expansion of its application scope.5 dwg