Coaxial Cable Connector Testing Window Design
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Solution Overview
Problem
Conduction tests in coaxial cable connectors often fail due to buckling or reduced contact force when a testing probe is pressed onto the terminal contact portion, and existing solutions do not provide suitable access for probing without contacting this portion.
Innovation Solution
A coaxial cable connector design featuring a signal terminal with a wide portion and a window, allowing external access for a testing probe without contacting the terminal contact portion, which increases the reliability of the conduction test and strengthens the signal terminal while reducing impedance variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a testing probe is pressed onto the terminal contact portion to perform conduction testing, then the conduction status can be tested, but the terminal contact portion may buckle or the contact force may decrease causing contact failure
Solution Approach 1:
The patent introduces an intermediary testing probe contact structure that transfers the testing function from the terminal contact portion to a dedicated testing area. The probe contacts the terminal contact portion through a controlled interface that distributes the applied force, preventing direct concentration of stress on the contact portion and thus avoiding buckling or contact force reduction.
Solution Approach 2:
The patent creates a localized testing region with specific structural characteristics (wide portion with increased width) that is optimized for probe contact. This local structural modification allows the testing probe to apply force without affecting the overall integrity or contact force of the terminal contact portion, as the stress is confined to the localized wide portion.
2Reliability
If the terminal contact portion is made stronger to prevent buckling, then contact reliability improves, but the connector height increases
Solution Approach 1:
Instead of increasing strength through the axial dimension (which would increase height), the patent introduces a width dimension by creating a wide portion with increased width in the radial direction. This dimensional shift allows the structure to gain structural integrity and distribute probe contact forces without extending the connector height, as the reinforcement occurs in the width direction rather than the length direction.
Data Source
AI summary
A coaxial cable connector includes a signal terminal and a housing, wherein the signal terminal includes a terminal contact portion for contacting a signal terminal of a counterpart connector, a conductor connection portion for connection with a central conductor of a coaxial cable, a wide portion between the terminal contact portion and the conductor connection portion, a first link portion linking the conductor connection portion and the wide portion, and a second link portion linking the terminal contact portion and the wide portion, wherein the wide portion has a width greater than a width of the first link portion and the second link portion which are adjacent to the wide portion, and the housing includes a mount portion in which the terminal contact portion is mounted, a fixing portion for fixing the central conductor to the conductor connection portion, and a window disposed between the mount portion and the fixing portion to enable external access to the wide portion.