Method for manufacturing an electrical feedthrough and electrical feedthrough

By combining the contact section after the compaction assembly is completed, the accurate positioning of the inner conductor relative to the central axis of the outer tube is ensured, which solves the problem of inaccurate positioning of the inner conductor of the electrical feeder, improves the insulation performance and mechanical strength, and is suitable for high temperature and high vibration environments.

CN116073213BActive Publication Date: 2026-05-29TUCKER & HELLINGE LTD
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Patent Information

Application Number
CN202211327685.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-11-03
Filing Date
2022-10-27
Publication Date
2026-05-29
Estimated Expiration
2042-10-27

AI Technical Summary

Technical Problem

In the prior art, it is difficult to achieve accurate and reliable positioning of the inner conductor of the electrical feeder during the compaction process, which leads to positional deviation and affects insulation performance and mechanical strength.

Method used

After the compaction assembly is completed, the contact section is combined to ensure that the contact section is accurately positioned relative to the central axis of the outer tube. The contact section is fixed by pressing with electrically insulating materials such as magnesium oxide under high voltage to compensate for the positional offset of the inner conductor, and by cutting, drilling or welding.

Benefits of technology

It achieves precise positioning of the inner conductor of the electrical feeder, improves insulation performance and mechanical strength, reduces exhaust leakage rate, and meets the requirements for use in high temperature and high vibration environments.

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Abstract

The invention provides a method for producing an electrical feedthrough having a one- or multi-part inner conductor which is arranged at least sectionally in a metal outer tube and is electrically insulated from the outer tube by means of an electrically insulating material, wherein the inner conductor of the electrical feedthrough produced has at least one contact section which protrudes from the metal outer tube, wherein in the method the metal outer tube, the electrically insulating material and the section of the one- or multi-part inner conductor which is already arranged in the metal outer tube are compacted into an assembly with one another, wherein the at least one contact section which protrudes from the metal outer tube is joined to the one- or multi-part inner conductor only after the compacting of the metal outer tube, the electrically insulating material and the section of the one- or multi-part inner conductor which is already arranged in the metal outer tube into an assembly with one another has been completed, wherein the contact section is positioned such that it is oriented along the central axis of the metal outer tube.
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