Superhigh-temperature-resistant nonpolarity radio-frequency coaxial electrical connector

Abstract

A superhigh-temperature-resistant nonpolarity radio-frequency coaxial electrical connector comprises a radio-frequency connector plug and a radio-frequency connector socket; a plug inner conductor of the radio-frequency connector plug is sintered together with the middle part of a plug shell through a plug glass body; the mouth part of the plug inner conductor is provided with a plug step hole in a way of inward cutting a slot; a plug spring which is in clearance fit with the plug step hole is arranged in the plug step hole; a plug inner contact head which is in clearance fit with the plug step hole is in press fit into the plug step hole and outside the plug spring; a blind hole is formed in the outer contact end face of the plug inner contact head; a socket inner conductor of the radio-frequency connector socket is sintered together with the middle part of a socket shell through a socket glass body; the mouth part of the socket inner conductor is provided with a socket step hole in a way of inward cutting a slot; a socket spring which is in clearance fit with the socket step hole is arranged in the socket step hole; a socket inner contact head which is in clearance fit with the socket step hole is in press fit into the socket step hole and outside the socket spring; and a blind hole is formed in the outer contact end face of the socket inner contact head. The electrical connector has the characteristics that the reliability is high, and the electrical connector can meet the 650-DEG C superhigh-temperature application condition.

Description

technical field [0001] The invention relates to the technical field of radio frequency coaxial electrical connectors, in particular to an ultra-high temperature resistant non-polar radio frequency coaxial electrical connector. Background technique [0002] The inner conductor connection of the electrical connector is generally a radial fit between elastic contacts made of beryllium bronze and rigid contacts. [0003] When the pin is an elastic contact piece: the stranded wire pin generally uses three beryllium bronze wires as the inner ring, seven beryllium bronze wires as the outer ring, the inner and outer rings are reversely twisted, the two ends are welded, and the middle part of the pin is raised. The diameter of the circumscribed circle is greater than the inner diameter of the socket. Compression deformation (maximum deformation is 0.05mm) and axial rotation elongation due to force during mating insertion, and seven copper wires on the outer ring form seven-wire cont...

AI Technical Summary

Problems solved by technology

The above-mentioned pinhole radial contact mode has small deformation, and the decrease of the elastic coefficient will easily lead to a decrease in contact pressure, resulting in poor contact or even contact failure.

Therefore, high-temperature-resistant connectors that use radial elastic deformation to generate contact pressure can only withstand temperatures below 300°C, and cannot meet the ultra-high temperature application conditions of 650°C in nuclear energy, aviation, aerospace and other fields.

How to meet the higher temperature application of electrical connectors has become a technical problem in this field. In the industry, the method of adding heat insulation layer in the system is generally adopted to reduce the ambient temperature of the connector, but this method increases the complexity of the whole system. The cost is high, and it is not conducive to equipment maintenance and repair

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