Embedded Conductor Breaker Structure for Conductive Gas Containment

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Solution Overview

Problem

Existing breaker devices suffer from conductive gas attributed to electric arcs leaking out, which can cause insulation deterioration on external members.

Innovation Solution

A breaker device incorporating a resin member with an internal space and a plate-shaped conductor, featuring a first and second holding portion embedded in the resin member, and a connecting portion, designed to minimize gas leakage by containing the conductive gas within the resin member's internal space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the cutoff portion is cut off in the state where an electric current flows to the conductor, then the circuit interruption function is achieved, but an arc discharge occurs and conductive gas leaks out of the housing

Engineering Contradiction:
Improvecircuit interruption functionVSAvoidconductive gas leakage
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The resin member acts as an intermediary barrier between the conductor and the external environment. It includes a through-hole that allows the conductor to pass through while the resin material itself contains and suppresses the conductive gas generated by arc discharge, preventing it from leaking outward to external members.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The resin member functions as a flexible containment structure that surrounds the conductor and the arc discharge region. The resin material provides a protective barrier that contains the conductive gas within the breaker device housing, preventing its escape to external components.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If the conductor is embedded in the resin member, then the conductor is securely held and gas leakage is reduced, but the manufacturing complexity increases

Engineering Contradiction:
Improveconductor fixation and gas containmentVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The conductor and resin member are merged into a single integrated structure where the conductor is embedded within the resin. This combining of elements simplifies the overall device structure by eliminating separate fixation mechanisms while simultaneously providing both secure conductor holding and gas containment functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The breaker device utilizes a composite structure combining conductive material (conductor) and insulating resin material. This composite design allows the conductor to be embedded in the resin, providing both mechanical support and gas containment without requiring additional complex components.

Inventive Principle:
Principle #40Composite materials

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 design effectively reduces the likelihood of conductive gas leakage, preventing insulation deterioration and ensuring safer operation.

Implementation Method 1

an igniter, a projectile, and a conductor. The housing includes a housing space that extends from the upper end side to the lower end side. The projectile is projected along the housing space by energy received from the igniter.

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentEP4704129A1Interruption device
Publication Date: 2026.03.04 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • EP4704129A1 patent drawingFigure 1
  • EP4704129A1 patent drawingFigure 2
  • EP4704129A1 patent drawingFigure 3

AI summary

This breaker device includes a resin member, an igniter, and a conductor. The resin member includes an internal space. The igniter introduces gas into the internal space. The conductor is plate-shaped and located below the igniter. The conductor includes: a first holding portion embedded in the resin member; a second holding portion embedded in the resin member; and a connecting portion connecting the first holding portion and the second holding portion. The first holding portion includes a through-hole.