RF Connector Protector With Elastic Silicone Jacket
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Solution Overview
Problem
Existing RF connector waterproofing methods are inefficient, labor-intensive, and costly, and fail to reliably suppress passive intermodulation (PIM) interference, especially in outdoor applications where connectors are subject to bending and twisting, leading to degraded performance.
Innovation Solution
A mechanical self-sealed protector for RF connectors comprising a first sealing assembly with a sealing ring and elastic structure for the cable and a second sealing assembly with an elastic silicone rubber jacket for the communication equipment, providing combined sealing and support to enhance waterproofing and PIM performance, and can be easily mounted and maintained at a lower cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional waterproof sealing methods (cement adhesive tape, heat-shrinkable sleeve, cold-shrinkable sleeve, waterproof box) are used, then waterproofing is provided, but the installation complexity, maintenance difficulty, and cost increase significantly
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated protector assembly that includes both a first sealing assembly for the cable and a second sealing assembly for the communication equipment. This merging of sealing functions eliminates the need for separate waterproofing components and reduces installation complexity while maintaining reliable waterproofing.
Solution Approach 2:
The protector assembly serves multiple functions simultaneously: it provides waterproof sealing at both the cable end and communication equipment end, mechanically protects the connector, and stabilizes the connection. This multi-functionality reduces the overall system complexity by replacing multiple specialized components with a single universal protector.
2Reliability
If cement adhesive tape winding method is used for waterproofing, then waterproofing is achieved, but installation time and labor requirements increase significantly
Solution Approach 1:
The sealing assemblies are pre-formed and pre-assembled into the protector housing before field installation. The complex sealing structures are manufactured and tested in advance, so that during installation, the technician only needs to attach the complete protector assembly to the connector, dramatically reducing installation time and labor requirements.
Solution Approach 2:
The protector assembly is designed as a disposable or easily replaceable component. Rather than spending significant time installing and configuring complex reusable sealing systems, the entire protector can be quickly attached and, if needed, replaced as a single unit, reducing both installation time and maintenance complexity.
3Adaptability or versatility
If connectors are mounted outdoors on flexible cables, then installation flexibility is improved, but PIM performance degrades due to cable bending and twisting
Solution Approach 1:
The protector assembly includes a mechanical support structure that is designed in advance to compensate for the stresses caused by cable bending and twisting. The support structure provides pre-positioned reinforcement around the connector contact portions, cushioning against deformation before it occurs and maintaining stable electrical contact despite outdoor installation conditions.
Solution Approach 2:
The protector assembly incorporates flexible protective elements that can accommodate cable movement while maintaining connector stability. The flexible support structure allows the connector to remain secure even when the flexible cable bends or twists, preventing contact surface separation and maintaining PIM performance.
4Reliability
If tail nuts are lengthened to protect cable ends and stabilize connections, then PIM performance improves, but connector cost increases
Solution Approach 1:
Instead of lengthening the tail nut as a single expensive component, the patent segments the protection function into a separate, dedicated protector assembly. This segmentation allows the use of simpler, less expensive materials and manufacturing processes for the protector while achieving the same PIM performance benefits through the combined sealing and support structures.
Solution Approach 2:
The protector assembly provides the necessary mechanical support and stabilization at a lower cost than lengthened tail nuts. By using simpler materials and design, the protector achieves comparable or superior PIM performance while reducing manufacturing costs, making it an economical alternative to expensive connector modifications.
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
The protector achieves efficient waterproof sealing and improved PIM performance by using a cost-effective, easy-to-mount solution that stabilizes the connector connections, reducing maintenance complexity and interference issues.
Implementation Method 1
a second sealing assembly for connection with communication equipment. The first sealing assembly comprises a sealing ring for engaging with a sheath of the cable and a member which has an internal thread or elastic structure for matching with the RF connector. The second sealing assembly is provided with an elastic silicone rubber jacket for connection with the communication equipment.
Implementation Method 2
a sealing ring for engaging with a sheath of the cable
Data Source
AI summary
A protector for an RF connector includes a first sealing assembly for connection with a cable and a second sealing assembly for connection with a communication equipment. The first sealing assembly includes a sealing ring for matching with a sheath of the cable and a member which has an internal thread or elastic structure for matching with the RF connector. The second sealing assembly is provided with an elastic silicone rubber jacket for connection with the communication equipment.