| 摘要 |
FIELD: electricity. ^ SUBSTANCE: invention is attributed to the field of electric engineering and, specifically to electric equipment engineering, and can be used in designs of relay, contactors, starters and in other switching devices for automation, control and protection. The invention features three versions. Technical result is achieved due to the fact that in electromagnetic switching device containing body, core with actuating coil, anchor, dampers located between core and body, chamber with fixed contact assemblies located in it, yoke connected with anchor, moving bridge contact assemblies made in the form of bridges with silver-containing contact parts installed in yoke, short-circuited turns installed in slots of marginal core legs, return spring, according to the first version, dampers are made U-shaped repeating the contour of core, and in marginal branches of which from the side of core legs working parts the indents or slots are made for short-circuited turns installation and fixing, and on damper surfaces faced to the core at least the indents and/or holes are provided for core rivet heads. ^ EFFECT: reliability enhancement, simplification and cheapening of device assembling, lowering of costs during its manufacturing. ^ 6 cl, 11 dwg |
