Implosion Connector for Composite Transmission Lines

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Solution Overview

Problem

Non-steel core transmission lines, such as those with carbon composite materials, have a lower compression failure point compared to steel, making it challenging to securely attach electrical connectors without causing catastrophic damage during radial compression, while maintaining sufficient friction to keep the line suspended.

Innovation Solution

An electrical connector with a compressible sleeve and a compression regulator that includes an implosion section with explosive material to radially or axially compress onto a non-steel core, preventing core crushing and ensuring secure attachment without damage, using sleeves made from materials like steel, aluminum, or plastic.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If radial compression is applied to secure the electrical connector to the transmission line, then frictional force is improved, but the non-steel core may be catastrophically damaged

Engineering Contradiction:
Improvefrictional forceVSAvoidcompression strength
Core Design Contradiction:
ForceVSStrength

Solution Approach 1:

The patent applies controlled radial compression to transform the sleeve from a loose fit to a tight interference fit around the transmission line conductor. This parameter change creates the necessary frictional force for suspension while the compression regulator ensures the compression remains within safe limits to prevent core damage.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The compression regulator acts as an intermediary component between the compression force source and the transmission line core. It mediates the compression process by providing a bearing surface that distributes the compressive force, preventing direct concentration of force on the vulnerable non-steel core while still enabling sufficient frictional force generation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If sufficient compression is applied to maintain suspension, then frictional attachment is improved, but core failure risk increases

Engineering Contradiction:
Improveattachment reliabilityVSAvoidcore damage risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The compression regulator is designed with a bearing surface that provides cushioning protection to the transmission line core before compression is applied. This pre-positioned protective element ensures that when compression occurs, the force is distributed safely and the core is protected from catastrophic failure, while still achieving reliable attachment.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The compression regulator serves as a protective intermediary between the compression mechanism and the vulnerable non-steel core. It translates the compression force into a safe distribution pattern that maintains attachment reliability without exceeding the core's compression strength limits.

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

The solution effectively secures the transmission line by applying a strong frictional force without damaging the non-steel core, ensuring the connector remains attached and the line remains suspended, while controlling compression to prevent core failure.

Implementation Method 1

An implosion section that includes explosive material may surround a portion of the sleeve

Methodology Applied
Scientific EffectImplosion: Explosion

Data Source

PatentEP2127040B1Implosion connector and method for use with transmission line conductors comprising composite cores
Publication Date: 2017.05.10 HUBBELL INC
  • EP2127040B1 patent drawingFigure 1~2
  • EP2127040B1 patent drawingFigure 3~4
  • EP2127040B1 patent drawingFigure 5~7

AI summary

ABSTRACT An electrical connector that can be compressed onto a composite transmission line without causing catastrophic damage to the non-metal/steel core. The electrical connector comprises a sleeve and a compression regulator that limits compression of the sleeve.