Contact element e.g. ring contact element, for electrical and mechanical connections of e.g. massive cable ends in borehole, has spring contact tongues with arc segments represented alternative to contact element center point

摘要

The contact element has crown-shaped spring contact tongues (1, 2) with resilient arc segments (3, 3') represented alternative to a contact element center point and to exterior of the contact element. The arc segments have triangular embossings (5, 5') at an angular point. The embossings alternatively contact a component enclosed by the contact element, and are formed in a sharp edge such that the embossings exhibit cutting effect that is pervasive to an oxide layer, where the cutting effect leads to gastight coldwelding of contact surfaces.