Connector With Integrated Impedance Suppressing And Locking Structure
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Solution Overview
Problem
Existing connectors face challenges in miniaturization while suppressing impedance increases in twisted pair cables, as the projection of a locked portion outwards complicates processing and leads to rattling issues, making it difficult to reduce the size of the outer conductor and connector.
Innovation Solution
A connector design featuring a conductive tubular portion with a recessed suppressing portion that projects inwardly to suppress impedance increases and doubles as a locking mechanism, allowing for reduced dimensions by integrating the suppressing and locking functions within the tubular portion, which is then accommodated in an outer housing with a locking portion that fits into the recessed area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the shell rear part is reduced in dimensions to suppress impedance increase, then impedance control is improved, but the shell becomes more difficult to process and rattling occurs more easily
Solution Approach 1:
The patent merges the impedance controlling function and the locking function into a single integrated structure (the shell rear part with reduced dimensions). This eliminates the need for separate impedance control measures and external locking mechanisms, making the shell easier to manufacture while maintaining both functions.
Solution Approach 2:
The reduced-dimension shell rear part serves multiple functions: it controls impedance by being positioned close to the wires and provides locking functionality through the locking portion. This multi-functionality resolves the contradiction by eliminating the need for additional processing steps while maintaining impedance control.
2Reliability
If the locked portion projects out from the shell to provide locking, then locking is achieved, but miniaturization of the connector becomes difficult
Solution Approach 1:
The patent combines the locking portion with the shell structure itself, eliminating the need for separate external locking components. The locking portion is formed as an integral part of the shell, allowing locking functionality without increasing the overall connector volume.
Solution Approach 2:
The locking portion is nested within the shell structure rather than projecting outward. This nesting approach allows the locking mechanism to be contained within the existing shell boundaries, enabling miniaturization while maintaining reliable locking capability.
3Manufacturing precision
If the suppressing portion and locked portion are separate components, then each function is dedicated, but the connector size increases
Solution Approach 1:
The patent merges the suppressing portion (impedance control) and the locked portion (locking mechanism) into a single integrated shell structure. The reduced-dimension rear part of the shell simultaneously provides impedance control by proximity to wires and locking capability through the integrated locking portion, eliminating the need for separate components and reducing overall connector size.
Data Source
AI summary
A connector (10) is to be connected to an end part of a cable (90). The cable (90) is formed by covering outer peripheries of at least two twisted wires (91) by an outer coating (92). The connector includes a conductive tubular portion (32) and an outer housing (60). The wires (91) are inserted into the tubular portion (32). The tubular portion (32) includes a suppressing portion (35) having an outer surface recessed from an outer surface of the tubular portion (32) and an inner surface projecting further toward the wires (91) than an inner surface of the tubular portion (32). The outer housing (60) includes an accommodating portion (62) for accommodating the tubular portion (32). The accommodating portion (62) includes a locking portion (66) to be fit into a recessed part of the suppressing portion (35) in an intersecting direction intersecting a withdrawing direction of the tubular portion (32).