Coaxial Connector Locking Element Friction Fixing
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Solution Overview
Problem
Coaxial connector arrangements face challenges with high passive intermodulation and increased production costs due to screw connections, which affect mechanical stability and handling complexity.
Innovation Solution
A coaxial connector arrangement featuring a locking element that securely fixes the inner sleeve to the outer sleeve, allowing for easy assembly and disassembly, reducing passive intermodulation by ensuring mechanical stability without the need for screw connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a screw connection is used to fix the inner sleeve to the outer sleeve, then mechanical stability is improved, but production costs and handling complexity increase
Solution Approach 1:
The patent replaces the screw connection (threaded mechanical system) with a friction-based pressing connection. The inner sleeve is pressed into the outer sleeve with sufficient force to create frictional engagement that provides mechanical stability without requiring threads or screw fasteners, thereby simplifying the assembly process and reducing handling complexity.
Solution Approach 2:
The invention extracts and removes the screw connection component from the assembly. By eliminating the threaded fastening mechanism entirely and relying on friction between the pressed surfaces of the inner and outer sleeves, the design reduces device complexity while maintaining the necessary mechanical stability.
2Stability of the object's composition
If a screw connection is used to fix the inner sleeve to the outer sleeve, then mechanical stability is improved, but production costs increase
Solution Approach 1:
The patent removes the screw connection and associated threading features from the manufacturing process. By using a simple pressing operation to create friction-based engagement between the inner and outer sleeves, the invention reduces manufacturing steps, tooling requirements, and production costs while maintaining mechanical stability.
Solution Approach 2:
The replacement of the screw threading mechanism with a friction-based pressing connection eliminates the need for precise thread cutting or forming operations, reducing manufacturing complexity and production costs while achieving the required mechanical stability through frictional forces.
3Ease of operation
If the inner sleeve is allowed to move relative to the outer sleeve, then handling complexity is reduced, but electrical transmission quality deteriorates due to increased passive intermodulation
Solution Approach 1:
The friction-based pressing connection is designed to be self-adjusting and self-locking. Once the inner sleeve is pressed into the outer sleeve, the friction forces automatically maintain the relative position without requiring additional locking mechanisms or complex assembly steps, providing both ease of handling and stable electrical connection.
Data Source
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AI summary
The invention relates to a coaxial connector assembly (10; 130; 150; 80; 210) comprising an electrically conductive outer sleeve (12) and an electrically conductive inner sleeve (26) pluggable in the axial direction into the outer sleeve (12) and electrically connectable to the outer sleeve (12), wherein a first contact pin (25) can be inserted into the outer sleeve (12) from the side facing away from the inner sleeve (26) and a second contact pin (68) can be inserted into the inner sleeve (26) from the side facing away from the outer sleeve (12), and wherein an insulating part (70), in which an inner conductor part (80) is retained, is arranged in the inner sleeve (26), and the two contact pins (25, 68) can be electrically conductively connected to each other via the inner conductor part (80). In order to develop a coaxial connector assembly of this type so that it has easy handling and a low passive intermodulation, the coaxial connector assembly (10; 130; 50; 180; 210) according to the invention has a locking element (102; 212) which can be mounted on one of the two sleeves (12; 26) before the insertion of the inner sleeve (26) into the outer sleeve (12) and during or after the insertion of the inner sleeve (26) into the outer sleeve (12), said locking element can be slid onto the other of the two sleeves (12; 26), wherein the inner sleeve (26) can be detachably fixed in the outer sleeve (12) by means of the locking element (102; 212).