Electrostatic Induction Power Generator Using Linear Wire Coatings

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Solution Overview

Problem

Conventional electrostatic induction power generators have high processing costs due to the need for semiconductor microfabrication techniques, which limits production efficiency and increases costs.

Innovation Solution

The use of linear conducting wires for both electrodes and electrets, coated with charged dielectric materials, allows for the formation of an electrostatic induction power generator without semiconductor microfabrication, enabling easier and more cost-effective manufacturing by forming annular clearances and utilizing guard electrodes to stabilize output voltage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If semiconductor microfabrication techniques are used to form fine electrodes and electrets on substrates, then manufacturing precision is improved, but processing cost increases and productivity decreases

Engineering Contradiction:
Improvefine electrode formation precisionVSAvoidprocessing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent replaces expensive semiconductor microfabrication processes with a simpler, more cost-effective method using linear conducting wires coated with charged dielectric material. This approach uses inexpensive materials and straightforward coating techniques instead of complex semiconductor manufacturing, significantly reducing processing costs while maintaining the necessary functional precision for electrostatic induction power generation.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes the mechanical semiconductor microfabrication process with an electrostatic-based approach. Instead of using complex mechanical lithography and etching equipment to form electrodes and electrets, the invention uses linear conducting wires that are simply coated with charged dielectric material, replacing a complex mechanical manufacturing system with a simpler electrostatic coating process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If semiconductor microfabrication techniques are used to form fine electrodes and electrets on substrates, then manufacturing precision is improved, but productivity decreases

Engineering Contradiction:
Improvefine electrode formation precisionVSAvoidproduction speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent replaces expensive semiconductor microfabrication processes with a simpler, more cost-effective method using linear conducting wires coated with charged dielectric material. This approach uses inexpensive materials and straightforward coating techniques instead of complex semiconductor manufacturing, significantly reducing processing costs while maintaining the necessary functional precision for electrostatic induction power generation.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent substitutes the mechanical semiconductor microfabrication process with an electrostatic-based approach. Instead of using complex mechanical lithography and etching equipment to form electrodes and electrets, the invention uses linear conducting wires that are simply coated with charged dielectric material, replacing a complex mechanical manufacturing system with a simpler electrostatic coating process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If linear conducting wires coated with charged dielectric material are used for electrodes and electrets, then processing cost is reduced, but manufacturing precision may be affected

Engineering Contradiction:
Improveprocessing costVSAvoidelectrode and electret formation precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent changes the fundamental parameters of the manufacturing approach by transitioning from precise lithographic patterning to a coating-based method. By controlling the coating thickness, wire geometry, and charge distribution parameters, the invention achieves sufficient functional precision for electrostatic induction without requiring the ultra-precise dimensional control of semiconductor fabrication, thus reducing costs while maintaining adequate performance.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by ensuring that the charged dielectric coating on the linear conducting wires has the necessary properties only where needed for electrostatic induction. The coating is applied to the surface of the wires in a controlled manner, providing the required electrical characteristics at the electrode-electret interface while allowing simpler, more cost-effective manufacturing methods to be used for the overall structure.

Inventive Principle:
Principle #3Local quality

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 approach reduces processing costs by 85% or more, increases production efficiency, and stabilizes electric power generation by offsetting electrostatic attractive forces, ensuring consistent power output across the entire circumference.

Implementation Method 1

an electret provided on the first base body... The electret is formed by coating a charged dielectric material on a surface of a linear conducting wire

Methodology Applied
Scientific EffectElectret: Electret

Implementation Method 2

an electrostatic capacitance between the electret and the first electrode changes and an electrostatic capacitance between the electret and the second electrode changes... so that a difference of the electrostatic capacitances is output as electric power

Methodology Applied
Scientific EffectElectrostatic induction: Electrostatic Induction

Data Source

PatentEP2523340B1Electrostatic induction power generator
Publication Date: 2017.06.07 OMRON CORP
  • EP2523340B1 patent drawingFigure 1~2
  • EP2523340B1 patent drawingFigure 3
  • EP2523340B1 patent drawingFigure 4(a)~4(c)

AI summary

There is provided an electrostatic induction power generator which can reduce processing cost. The electrostatic induction power generator includes a first base body 111 and a second base body 112 which are configured to be able to reciprocate relative to each other and between which an annular clearance S is formed, an electret 112 provided on the first base body 111, and a first electrode 122 and a second electrode 123 provided on the second base body 121. The electret 112 is formed by coating a charged dielectric material on a surface of a linear conducting wire and both of the first electrode 122 and the second electrode 123 are formed of a linear conducting wire.