Contact finger assembly

Abstract

The invention discloses a contact finger assembly. The contact finger assembly has load consistency on each contact finger, simple installation and relatively low production precision requirement; according to the key points of the technical scheme, a contact finger base is tubular and a limiting groove is formed in the outer wall of the contact finger base; the contact fingers are arranged in theperipheral direction of the contact finger base and are glidingly connected with the end part of the contact finger base; a limiting block propping against the limiting groove is arranged on one sideof each contact finger while at least one groove is formed in the other side; the contact finger assembly also comprises at least one annular spring; each annular spring is matched with the grooves in each contact finger; when a conductive rod is inserted in the contact finger assembly, the contact finger is pressed on the conductive rod by the corresponding spring; and by virtue of proper matching between the inner diameter of the contact finger assembly and the conductive rod, each contact finger and the corresponding conductive rod form contact of two lines, thereby obtaining reliable contact, and ensuring load consistency on each contact finger.

Description

technical field [0001] The invention relates to a contact finger assembly, more specifically to an electrical connection device of a gas-insulated metal-enclosed switch (GIS). Background technique [0002] The main function of the electrical connection device of the gas-insulated metal-enclosed switch (GIS) is to conduct the rated current and the instantaneous fault current in the main circuit. It has high requirements on the electrical and mechanical properties of the electrical connection, and its quality is good. Failure directly affects the reliability of GIS and the safe operation of the power grid. [0003] At present, the electrical connectors in domestic GIS equipment are usually connected by plum blossom contacts or strap contacts. Although the connection method of the contact finger structure of the strap is low in cost, it has high requirements on the matching clearance of the connection, and it is difficult to assemble in actual construction. Another kind of pl...

AI Technical Summary

Problems solved by technology

Although the connection method of the contact finger structure of the watch strap is low in cost, it has high requirements for the matching clearance of the connection, and it is difficult to assemble in actual construction

Another kind of plum blossom contact finger structure has slightly lower requirements on the fit clearance of the connection, but it cannot guarantee the consistency of the load on each contact finger, and the installation is difficult, and the production accuracy is high.

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