Coaxial Connector With Segmented Through-Hole for Low Insertion Force
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coaxial plug-in connectors face difficulties in fitting onto coaxial cables due to diameter relationships, requiring high insertion force and struggling to maintain a balance between ease of insertion and retention.
Innovation Solution
The coaxial plug-in connector features detent hooks on the inner conductor part and recesses on the insulating part, allowing for low insertion force through elastic deflection and providing a high holding force via a detent-locking mechanism, with a through-hole divided into sections of different diameters to facilitate easy insertion and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the inner conductor part is pushed through the insulating part from the insertion side, then the inner conductor part can be connected to the coaxial cable, but high insertion force is required due to diameter relationships
Solution Approach 1:
The through-hole is divided into two sections with different diameters: a first section with a smaller diameter for easy insertion and a second section with a larger diameter for secure retention. This segmentation allows the inner conductor part to be inserted with low force while still achieving reliable connection to the coaxial cable.
Solution Approach 2:
Different regions of the through-hole have different diameter characteristics tailored to specific functional requirements. The first section has a smaller diameter optimized for insertion ease, while the second section has a larger diameter optimized for retention strength, creating local quality variations that resolve the contradiction between ease of insertion and holding force.
2Ease of manufacture
If the inner conductor part is fastened on the inner conductor of the coaxial cable first, then the fitting process is simplified, but the inner conductor part and insulating part must be fixed with respect to each other in the axial direction
Solution Approach 1:
The insertion and fixation functions are merged into a single continuous motion through the through-hole. The inner conductor part is inserted through both sections of the through-hole in one action, achieving both ease of fitting and secure fixation without requiring separate fixation steps or complex additional mechanisms.
Solution Approach 2:
The through-hole structure itself provides the fixation function through its two-section design. The transition from the first smaller-diameter section to the second larger-diameter section automatically secures the inner conductor part in place during insertion, making the structure self-fixating without requiring external fixation mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables easy and efficient fitting of the inner conductor into the insulating part with reduced insertion force while ensuring a strong axial retention, combining low insertion force with high holding force.
Implementation Method 1
the wall of the through-hole is able to be deflected radially outwards elastically in the region of each recess
Data Source
AI summary
The invention relates to a coaxial plug-in connector for fitting to a coaxial cable, the coaxial plug-in connector having an inner conductor part (28), an outer conductor part (29) and an insulating part (10) having an axial through-hole (12) for the purpose of passing through the inner conductor part (28).