ELECTROMAGNETIC SWITCHING DEVICE Russian patent published in 1997 - IPC

FIELD: electrical engineering; low-voltage circuit-opening and switching devices, such as relays, contactors, starters. SUBSTANCE: device has double-coil valve-type electromagnet, contact units mounted on magnetic core clamp, turning lever whose symmetrical arms are hinged to yokes of contact units for reciprocation in two relatively opposite directions in response to armature turn; lever is hinged on vertical symmetry axis of device perpendicular to the latter; two armatures are installed on ends of lever symmetrically to its axis of revolution; one of armatures is mounted above flanges of L-shaped magnetic cores of one coil and other armature, under flanges of L-shaped magnetic core of other coil between mentioned flanges and side surface of coil. Flanges of pair of L-shaped magnetic cores of one coil are made higher that those of other coil by distance equal to armature travel. EFFECT: improved design. 2 cl, 2 dwg