Electromagnetic switching device for the switching of high starting currents and measures for the separation of resulting adhesive - and welded connections at the contacts

摘要

Electromagnetic switching device having a in a housing (11) movably mounted lever (1), the one hand, by a spring (2) supported first contact (4) carries, wherein the first contact (4) with respect to the lever (1) is movably guided in a positive-locking manner, whereby the lever (1) is driven so that the first contact (4) against a stationary second contact (7) to move the lever (1) has a supporting arm (10), of the first contact (4), wherein the first contact (4) and the supporting arm (10) by the engagement of a guide cone (12) in an embossing (13) are positively connected to one another, and wherein, during a closing movement of the first contact (4) at a lower bearing point (f_Au) and an upper bearing point (f_Ao) on the support arm (10) of the lever (1) rests and the lever (1) to the contact of the first contact (4) with a stop (6) of the lever (1) is moved and during the closing movement of contact surfaces of the contact rivets (8, 9) of the first contact (4) and of the second contact (7) not only are pressed together, but at the same time, and roll on one another as a result of the slide by the stop (6) initiated tilting movement of the first contact (4) with respect to the lever (1).