Coaxial Cable Connector Assembly Grounding Mechanism
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Solution Overview
Problem
Existing coaxial cable connector designs are prone to damage from high voltage and magnetic interference, leading to signal transmission instability and energy loss, due to high tooling costs and potential damage to grounding wires from locking mechanisms.
Innovation Solution
A coaxial cable connector assembly featuring a bracket with a single-piece metal plate made by stamping, incorporating an externally threaded male and internally threaded female connector for the grounding wire, with a washer to prevent direct contact and a cut plane to prevent rotation, ensuring effective grounding and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock screw is directly stopped against the periphery of the grounding wire to secure it, then the grounding wire is firmly fixed, but the periphery of the grounding wire may be damaged by the lock screw, causing increase of impedance
Solution Approach 1:
A U-shaped wire retainer is introduced as an intermediary component between the lock screw and the grounding wire. The wire retainer has a U-shaped cross-section that cradles the grounding wire, while the lock screw secures the wire retainer rather than directly contacting the grounding wire. This intermediary structure prevents direct mechanical damage to the grounding wire periphery while maintaining firm fixation, thereby resolving the contradiction between reliable fixation and avoiding wire damage.
2Manufacturing precision
If the stepped bracket is made by means of metal injection molding to achieve precise geometry, then the structural precision is improved, but the tooling cost for fabrication becomes quite expensive
Solution Approach 1:
The patent replaces the expensive metal injection molded stepped bracket with a simpler, cheaper bracket structure that can be manufactured using conventional, lower-cost processes. The design accepts that the bracket may need replacement rather than investing in expensive tooling for a durable, precision-molded component. This approach trades long-term durability and precision for lower initial manufacturing cost, resolving the contradiction between manufacturing precision and fabrication cost.
3Reliability
If a grounding arrangement is necessary for discharge of magnetic waves and noises to decrease induction voltage, then signal transmission stability is improved, but the complexity of the connector assembly increases
Solution Approach 1:
The patent integrates the grounding wire connector components (wire retainer, lock screw, and bracket elements) into a unified assembly where multiple functions are combined. The bracket serves both as a mounting structure and as part of the grounding path, while the wire retainer and lock screw work together as an integrated securing mechanism. This merging of functions reduces the number of separate components and simplifies the overall assembly process, resolving the contradiction between achieving reliable signal transmission through grounding and maintaining simple connector assembly structure.
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 effectively eliminates electromagnetic interference, prevents system damage, and ensures stable signal transmission by using a cost-effective, stamped metal bracket and a secure grounding mechanism that avoids friction damage and rotation issues.
Implementation Method 1
a grounding arrangement is necessary for discharge of magnetic waves and noises
Implementation Method 2
When a TV system or any other electronic equipment is attacked by a thunder strike or strong magnetic waves
Implementation Method 3
a grounding wire connector consisting of an externally threaded male connector member and an internally threaded female connector member
Implementation Method 4
a washer attached to the shank of the male connector member and stopped between the grounding wire and the female connector member to prevent direct contact
Data Source
AI summary
A coaxial cable connector assembly includes a bracket defining an upright locating plate and a horizontal holder plate, a coaxial cable connector fastened to the upright locating plate for the connection of a coaxial cable, and a grounding wire connector consisting of an externally threaded male connector member and an internally threaded female connector member and fastened to the horizontal holder plate to hold a grounding wire for discharging of magnetic waves, surge or shocks occurred during signal transmission through the coaxial cable to avoid system damage and to assure signal transmission stability.