Diaphragm switch actuating mechanism - has spring element on diaphragm with superposed mechanical oscillator producing deflection stroke

摘要

The actuating mechanism is intended for a switch operating from the lower to the highest switching incidence. It exerts an orthogonal pressing force in the axial direction to the switching system. Thus the diaphragm and the moving contact are deflected to close the stationary contact via a bore in a thin insulating intermediate plate, defining a very small contact stroke. The deflection stroke of the actuating mechanism is greater than the contact stroke, while the diaphragm has a non-linear, progressively increasing spring characteristics. A spring element (14) is mounted on the diaphragm (10), while a mechanical oscillator (16) is arranged above the spring element. It acts upon the same and produces a deflection stroke. The arrangement may incorporate an operating element (12). The spring element has a linear spring characteristic, and abuts the diaphragm with a prestress.