Expansion Electrode Arrangement for Thermal Gap Control

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Solution Overview

Problem

Conventional surface treaters face challenges in maintaining a consistent discharge gap between electrodes due to thermal expansion, which limits the useable power input and complicates electrode mounting and replacement, especially at elevated temperatures.

Innovation Solution

The expansion electrode arrangement features mounting components that accommodate thermal expansion by allowing relative movement of electrodes, enabling efficient connection and disconnection without tools, and maintaining a consistent gap dimension through floating connections and spring-biased clamp mounts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If high power input is used to increase treatment effectiveness, then treatment quality improves, but thermal expansion of electrodes occurs causing gap inconsistency

Engineering Contradiction:
Improvepower inputVSAvoidgap consistency
Core Design Contradiction:
PowerVSManufacturing precision

Solution Approach 1:

The electrode mounting system transitions from a static rigid connection to a dynamic adjustable connection. The mounting components allow the electrode to move axially in response to thermal expansion, maintaining consistent gap distance through controlled movement rather than rigid fixation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent directly addresses thermal expansion by designing the mounting system to accommodate electrode expansion at elevated temperatures. The mounting components are configured to allow relative movement that compensates for the electrode's thermal expansion, preventing gap inconsistency despite temperature increases from high power operation.

Inventive Principle:
Principle #37Thermal expansion

2Manufacturing precision

If rigid electrode mounting is used to maintain gap consistency, then gap stability improves, but electrode replacement and maintenance become complex

Engineering Contradiction:
Improvegap consistencyVSAvoidelectrode replacement
Core Design Contradiction:
Manufacturing precisionVSEase of repair

Solution Approach 1:

The electrode mounting system is segmented into separate removable components rather than a fixed integrated structure. This allows the electrode to be independently removed and replaced by simply disassembling the mounting components, without requiring complex tools or procedures while maintaining gap consistency during operation.

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If fixed electrode connections are used to ensure stability, then structural stability improves, but accommodation of thermal expansion becomes difficult

Engineering Contradiction:
Improvestructural stabilityVSAvoidthermal expansion accommodation
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The mounting system incorporates dynamic elements that allow controlled movement and adjustment. The mounting components can shift position to accommodate electrode expansion while maintaining stable electrical connection and consistent gap geometry, combining stability with adaptability.

Inventive Principle:
Principle #15Dynamics

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 solution allows for the use of higher power supplies while simplifying electrode replacement and maintenance, ensuring consistent treatment quality by maintaining the discharge gap and reducing the risk of electrode damage.

Implementation Method 1

maintain a consistent gap (or discharge zone) between the electrodes and ground despite thermal expansion of the electrodes during operation

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

apply high energy (e.g., via a high frequency power supply) to a process gas (e.g., air or a noble or other gas) to liberate electrons or other charged particles, which at least partially ionize the process gas

Methodology Applied
Scientific EffectIonization: Ionisation

Implementation Method 3

The various constituent parts (i.e., various charged and neutral atoms and molecules and various subatomic particles) of the resulting discharge (e.g., corona or plasma) react and collide with the material substrates

Methodology Applied
Scientific EffectCorona discharge: Corona Discharge

Implementation Method 4

The various constituent parts (i.e., various charged and neutral atoms and molecules and various subatomic particles) of the resulting discharge (e.g., corona or plasma) react and collide with the material substrates

Methodology Applied
Scientific EffectPlasma: Plasma

Implementation Method 5

spring-biased clamp mounts

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP3639333B1Surface treater with expansion electrode arrangement
Publication Date: 2021.04.21 ENERCON IND CORP
  • EP3639333B1 patent drawingFigure 1
  • EP3639333B1 patent drawingFigure 2~3
  • EP3639333B1 patent drawingFigure 4~5

AI summary

An expansion mount, electrode arrangement and a surface treater station include a mounting block with one or more clamps pivotally coupled to the mounting block to move between a connect position and a release position. When the mounting block is coupled to a surface treater, the one or more clamps are configured to engage the electrode in the connect position and disengage from the electrode in the release position.