Contact ring and contact system

Abstract

The present invention relates to a contact ring (10, 100) for connecting at least a first and a second electrically conductive contact element (1, 2), the contact ring (10, 100, 1000) comprising: a strip (12) comprising electrically conductive material, wherein the strip (12) comprises a plurality of projections (14, 104, 1004) on at least one longitudinal side, wherein the projections (14, 104) are configured such that they contact the electrically conductive materials of the contact elements (1, 2) and establish an electrically conductive connection therebetween. The present invention further relates to a contact system composed of a contact ring (100), a ground cylinder (200), and a shielding cylinder (300) with centering projections, where the contact ring is disposed between the two cylinders and where the ground cylinder (200) and the shielding cylinder (300) are connected to one another by a press-fit.

Description

technical field [0001] The invention relates to a contact ring which electrically connects contact elements and to a contact system comprising a grounded cylinder, a shielding cylinder and a contact ring which electrically connects the two cylinders. Background technique [0002] Known contact rings are in the form of compression spring contacts, which are made of electrically conductive material and can thus establish an electrically conductive connection between the contact elements. These contact rings are generally flat and have, for example, a wave shape, so that they alternately touch the surface of the contact element. [0003] Figure 1A and 1B Two contact elements 1 and 2 are shown without connecting members ( Figure 1A ) and two contact elements 3 with connecting member 3 ( Figure 1B ) of the regular arrangement. Figure 1B The connection member 3 in is a typical contact ring 3 known from the prior art. The contact ring 3 is flat and wavy, and is usually made...

AI Technical Summary

Problems solved by technology

The contact ring 3 is flat and wavy, and is usually made of spring steel, which has good mechanical properties but poor electrothermal properties, which is also difficult to compensate with thick silver plating

The contact parts of known contact rings also do not reliably penetrate electrically insulating surface layers, such as aluminum oxide, with typical contact forces

they are also prone to corrosion

[0004] The contact element, although it contains a conductive material whose surface is made of an electrically insulating layer such as a natural oxide, cannot be connected in an adequately conductive manner by the contact elements described in the prior art

Furthermore, the contact elements are not configured to avoid air gaps between the contact elements

Therefore, the electromagnetic shielding of this connection is ineffective at high frequencies

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