Coaxial Cable Connector Elastic Ring Electrical Stability

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Solution Overview

Problem

The existing coaxial cable connectors suffer from signal leakage due to unstable electrical conduction between the outer casing and the coupling sleeve, leading to instability in signal transmission and potential water vapor infiltration, which can cause short circuits.

Innovation Solution

A coaxial cable connector design featuring a metal sleeve, a metal clamping sleeve, a coupling sleeve, and an elastic ring, where the elastic ring is used to establish a stable electrical connection between the coupling sleeve and the metal clamping sleeve, and to prevent water vapor infiltration by deforming to fill gaps during assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the coupling sleeve rotatably jackets the internal sleeve to improve assembly convenience and provide anti-theft function, then assembly convenience is improved, but a gap exists between the outer casing and the coupling sleeve causing unstable electrical conduction

Engineering Contradiction:
Improveassembly convenienceVSAvoidelectrical conduction stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

An elastic ring is introduced as an intermediary component between the coupling sleeve and the outer casing. This elastic ring fills the gap that would otherwise exist due to the rotatable coupling sleeve design, ensuring continuous electrical contact while preserving the rotational assembly mechanism. The elastic ring acts as a mediator that maintains electrical stability without restricting the convenient rotational assembly feature.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the waterproof washer is disposed in the connector to prevent water vapor infiltration, then waterproofing is improved, but the gap between components still causes unstable electrical conduction

Engineering Contradiction:
ImprovewaterproofingVSAvoidelectrical conduction stability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The functions of waterproofing and electrical conduction are merged into a single component - the elastic ring. Unlike the traditional separate waterproof washer that only addresses water infiltration, the elastic ring simultaneously provides both waterproof sealing and continuous electrical contact. This combined approach eliminates the need for separate components and resolves the electrical instability issue while maintaining waterproof protection.

Inventive Principle:
Principle #5Merging (Combining)

3Strength

If the outer casing is deformed using an auxiliary tool to clamp the coaxial cable tightly, then cable fixation is improved, but the gap between outer casing and coupling sleeve remains causing signal leakage

Engineering Contradiction:
Improvecable clamping forceVSAvoidsignal transmission stability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The elastic ring serves as an intermediary that bridges the gap between the outer casing and coupling sleeve, ensuring continuous electrical contact even when the outer casing is deformed for cable clamping. This mediator component maintains signal transmission stability regardless of the clamping force applied to the cable, preventing signal leakage while preserving the cable fixation strength.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 ensures a stable electrical connection and effective waterproofing, preventing signal leakage and short circuits while maintaining signal integrity and assembly convenience.

Implementation Method 1

The elastic ring is used to establish a stable electrical connection between the coupling sleeve and the metal clamping sleeve, and to prevent water vapor infiltration by deforming to fill gaps during assembly

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11450984B2Coaxial cable connector
Publication Date: 2022.09.20 TCC RFTECH CO LTD
  • US11450984B2 patent drawing
  • US11450984B2 patent drawing
  • US11450984B2 patent drawing

AI summary

A coaxial cable connector includes a metal sleeve, a metal clamping sleeve, a coupling sleeve and an elastic ring. The metal sleeve jackets an insulation layer of a coaxial cable and is coupled to a metal fence layer of the coaxial cable when the coaxial cable connector jackets the coaxial cable. The metal clamping sleeve jackets a first end portion of the metal sleeve for tightly clamping the coaxial cable. The coupling sleeve is detachably connected to a device connector and rotatably jackets a second end portion of the metal sleeve. The elastic ring is disposed in the coupling sleeve and fixedly jackets the second end portion. The elastic ring has a thick portion at least partially protruding from the second end portion relative to the metal sleeve and an abutting structure extending toward the first end portion axially for pushing the coupling sleeve against the metal clamping sleeve tightly.