Handheld Plasma Nozzle Integrating Matching Network

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing plasma tools for surface treatment at normal pressure are not adaptable to diverse industrial applications due to their rigid design and high-voltage requirements, making them unsuitable for use in industrial production lines where flexibility and cost-effectiveness are essential.

Innovation Solution

Integration of the coil and capacitor C2 into the plasma nozzle eliminates the need for a separate matching network, allowing for a more flexible feed line and enabling the use of a high-frequency generator with a fixed frequency, which reduces the overall size and weight of the plasma reactor, making it suitable for handheld or robotic guidance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If a separate matching network is used with high-frequency generators, then high voltage generation efficiency is maintained, but the device size and weight increase, reducing flexibility for handheld or robotic use

Engineering Contradiction:
Improveweight of plasma reactorVSAvoidhigh voltage generation efficiency
Core Design Contradiction:
Weight of moving objectVSPower

Solution Approach 1:

The patent integrates the matching network components (coil and capacitor C2) directly into the plasma nozzle structure, merging two previously separate systems into one unified device. This eliminates the need for a separate matching network, thereby reducing overall weight and size while maintaining the electrical resonance conditions necessary for efficient high voltage generation at fixed frequency

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If a separate matching network is used, then electrical resonance can be achieved, but the feed line becomes rigid and the device lacks flexibility for various industrial applications

Engineering Contradiction:
Improveflexibility of plasma nozzleVSAvoidstructure of plasma reactor
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

By integrating the matching network into the plasma nozzle, the patent eliminates the rigid separate matching network structure and its associated rigid feed line requirements. The merged design allows the plasma nozzle to be more adaptable for handheld or robotic guidance while maintaining electrical resonance functionality through the integrated coil and capacitor C2

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If the coil and capacitor C2 are integrated into the plasma nozzle, then the device size and weight are reduced, but the electrical resonance conditions must be precisely maintained within the integrated structure

Engineering Contradiction:
Improvevolume of plasma reactorVSAvoidintegration precision of coil and capacitor
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The patent integrates the coil and capacitor C2 into the plasma nozzle structure, significantly reducing the overall volume of the plasma reactor. The design accepts that precise electrical resonance conditions must be maintained within this integrated structure, representing a trade-off between compactness and manufacturing precision requirements

Inventive Principle:
Principle #5Merging (Combining)

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 allows for a compact, flexible, and cost-effective plasma nozzle that can generate a cold plasma jet, enhancing its applicability in various industrial processes by reducing volume and weight, while maintaining high voltage generation efficiency.

Implementation Method 1

the coil and capacitor C2 are integrated into the plasma nozzle... allowing for a more flexible feed line and enabling the use of a high-frequency generator with a fixed frequency

Methodology Applied
Scientific EffectElectromagnetic resonance: Resonance

Implementation Method 2

Integration of the coil and capacitor C2 into the plasma nozzle eliminates the need for a separate matching network

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

Cold plasma hand set for plasma treatment of surfaces... generate a cold plasma jet... plasma-assisted treatment, modification and coating of inner and outer surfaces

Methodology Applied
Scientific EffectCold plasma: Plasma

Data Source

PatentEP2016809B1Cold plasma hand set for plasma treatment of surfaces
Publication Date: 2015.07.01 LEIBNIZ INST FUR PLASMAFORSCHUNG & TECH
  • EP2016809B1 patent drawingFigure 1a~1b
  • EP2016809B1 patent drawingFigure 2~3
  • EP2016809B1 patent drawingFigure 4

AI summary

A plasma tool for generating a cold plasma beam (10) is described. The plasma tool is defined by the fact that it has a plasma nozzle, in particular a plasma nozzle which is dimensioned for operation by hand, wherein at least the coil (6) of the adaptation network is integrated into the plasma nozzle, for operation with a high frequency generator in addition to the capacitor C2, while the capacitor C1 can be arranged in the generator itself or in its vicinity.