Broadband coaxial lightning arrester with copper-aluminum structure

Abstract

The invention relates to a broadband coaxial lightning arrester with a copper-aluminum structure, which is used for protecting coaxial devices in broadcasting television systems and microwave communication and mobile communication base stations. The broadband coaxial lightning arrester with the copper-aluminum structure comprises an outer conductor, an inner conductor, an insulator, a short-circuiting device shell and a short-circuiting device short-circuiting lever, wherein an outer conductor main body of the middle section of the outer conductor is made from an aluminum alloy material; one end of the outer conductor main body is provided with a connecting section of which the aperture is larger than that of the middle part of the outer conductor; the back section of a section of copper material insertion piece is arranged in the connecting section of the outer conductor main body in an interference fit mode; the front section of the insertion piece serves as a joint part of the outerconductor of; and the rear end of the outer conductor main body is in interference fit connection with an inner hole of a copper material rear insertion piece. The broadband coaxial lightning arrester can be ensured to have good electric conductivity, contact elasticity and contact strength when inserted with other coaxial devices, and simultaneously can greatly reduce the usage amount of the copper material and reduce the material cost.

Description

technical field [0001] The invention relates to a copper-aluminum structure broadband coaxial lightning arrester for system and equipment protection in radio and television systems, microwave communication and mobile communication base stations. Background technique [0002] Surge arresters used for system and equipment protection in radio and television systems, microwave communications, and mobile communication base stations usually include inner conductors, insulators between outer conductors and outer conductors, and shafts located in the middle of the inner and outer conductors and connected to the inner and outer conductors. The two ends of the inner and outer conductors are provided with joints for connecting with other coaxial devices to the short-circuit device casing and the short-circuit device short-circuit bar which are perpendicular to each other. In the traditional lightning arrester structure, in order to ensure that the connection between the joint part and ...

AI Technical Summary

Problems solved by technology

In the traditional lightning arrester structure, in order to ensure that the connection between the joint part and other devices has good electrical conductivity, contact elasticity and strength, the outer conductor is usually made of overall copper material, which makes the material cost of the entire device higher

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