Fastening device providing highly effective electromagnetic interference shielding

Abstract

The invention discloses a fastening device providing highly effective electromagnetic interference shielding, which comprises a metal cap, a metal connector, a flange elastic piece and a metal nut, wherein the metal cap is connected with one end of the metal connector through threads; the flange elastic piece is installed in the metal connector; and the metal nut is connected with the other end ofthe metal connector through threads. The invention provides a fastening device providing highly effective electromagnetic interference shielding, adapting to quick passage of a copper terminal without extracting the flange elastic piece. The flange elastic piece has a hexagonal trapezoidal shape, which has a large grounding area, preventing surge and high-voltage breakdown, and is convenient to install, which saves working hours and realizes quick grounding without flipping a shielding layer. The fastening device has the advantages of a simple structure, a stable performance and a long service life.

Description

technical field [0001] The invention relates to the technical field of locking devices, in particular to a locking device for efficiently shielding electromagnetic interference. Background technique [0002] Nowadays, EMC cable connectors are widely used. The cable shielding layer and junction box are connected through EMC cable connectors, so that electronic devices neither interfere with other devices nor are they affected by other devices. [0003] It mainly includes nuclear power plants, railways, communications, petrochemicals, passenger cars, electric power and other fields. Its main function is to connect and fix cables, while ensuring its high-required waterproof performance, flame-retardant performance and electromagnetic compatibility. So as to effectively form long-term stable and effective protection for cables and equipment. [0004] The metal casing of electrical equipment, reinforced concrete poles and metal pole towers, etc., may be charged due to insulatio...

AI Technical Summary

Problems solved by technology

[0005] In the existing electromagnetic compatibility cable joint, the cable with the shielding layer removed is inserted into the joint, and the flange shrapnel is placed between the cut shielding layer and the thin wire, and the contact fit is achieved to achieve the effect of electromagnetic compatibility. The copper terminal of the wire cannot pass through quickly, cannot achieve fast grounding, and the installation is not easy. The shielding layer needs to be cut, which takes man-hours, the floor area is small, the effect of shielding interference is not effective, and it is not resistant to surges and high voltage shocks. Put on

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