Coaxial Plug Contact Arrangement With Insertion Bevels
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Solution Overview
Problem
Existing coaxial plug contact arrangements are prone to mating errors, leading to faulty connections and increased manufacturing costs due to incorrect positioning of internal central contacts, which results in the sorting out of defective connectors in series production.
Innovation Solution
A contact arrangement for a coaxial plug featuring an inner conductor contact with an insertion opening and an insulating dielectric body, both defining insertion bevels that form an insertion funnel, along with centering and coding elements for precise alignment and secure mating, reducing the susceptibility to mating errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional coaxial plug contact arrangements are used, then manufacturing is simple, but mating errors occur frequently leading to faulty connections
Solution Approach 1:
The patent applies preliminary action by pre-forming insertion bevels on both the inner conductor contact and the insulating body before assembly. These bevels are created in advance to guide the mating contact during insertion, preventing incorrect positioning and mating errors. The bevels are formed as part of the manufacturing process, so the alignment guidance is built into the structure before the connector is assembled or used.
2Manufacturing precision
If insertion bevels are added to both inner conductor contact and insulating body, then mating accuracy improves, but manufacturing complexity increases
Solution Approach 1:
The patent merges the alignment function into the insulating body itself by forming insertion bevels on its outer surface. Instead of adding separate alignment features or complex positioning mechanisms, the insulating body is designed to provide both electrical insulation and mechanical alignment guidance through its beveled surfaces. This integration reduces the number of separate components and simplifies the overall manufacturing process.
3Reliability
If centering and coding elements are included, then mating errors are reduced, but device complexity increases
Solution Approach 1:
The patent applies asymmetry through coding elements with specific geometric shapes that must match corresponding features on the mating connector. The asymmetric design prevents incorrect orientation or insertion, as only the correct alignment will allow the coding elements to engage properly. This provides mechanical enforcement of correct mating without requiring complex electronic verification systems.
Data Source
AI summary
A contact arrangement for a coaxial plug comprises an inner conductor contact having an insertion opening for inserting a mating contact in a mating direction, and an insulating dielectric body enclosing the inner conductor contact. The inner contact and the insulation body each define insertion bevels in an area of the insertion opening.