Triboelectric Power Module Structure for Direct Current Output

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Solution Overview

Problem

Self-driven power generation modules generate alternating current, requiring additional electronic components like rectifiers, increasing design complexity and cost due to the need for space and larger circuits.

Innovation Solution

A self-driven power generation module design comprising an upper and lower structure with encapsulating and supporting layers, electrode layers, and a charge accumulation layer, allowing for direct current output without additional circuits by utilizing friction-induced electrostatic fields and switching electrodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rectifiers and electronic components are added to convert alternating current to direct current, then direct current output is achieved, but module design complexity increases and production cost increases

Engineering Contradiction:
Improvedirect current output capabilityVSAvoidmodule design complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and removes the rectifier and electronic conversion components from the system. By using a triboelectric nanogenerator that directly produces direct current through friction-induced charge separation, the need for alternating current to direct current conversion components is eliminated, thereby reducing module design complexity while maintaining direct current output capability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The triboelectric nanogenerator structure performs self-powered direct current generation through friction between different material layers. The structure inherently produces direct current without requiring external rectifiers or conversion circuits, making the system self-sufficient and eliminating additional electronic components

Inventive Principle:
Principle #25Self-service

2Reliability

If rectifiers and electronic components are added to convert alternating current to direct current, then direct current output is achieved, but production cost increases

Engineering Contradiction:
Improvedirect current output capabilityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent removes expensive rectifier and electronic conversion components from the system. The triboelectric nanogenerator directly generates direct current through friction-induced charge separation, eliminating the need for additional expensive electronic parts and reducing overall production cost

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses inexpensive triboelectric material layers (such as different polymers or materials with different electronegativity) that can be manufactured at low cost. These material layers replace expensive electronic rectifiers and conversion components, significantly reducing production cost while maintaining direct current output capability

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

3Reliability

If more space is reserved to accommodate electronic components and circuits, then direct current output is achieved, but module size increases

Engineering Contradiction:
Improvedirect current output capabilityVSAvoidmodule size
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent extracts and removes rectifiers and electronic conversion circuits from the module. The triboelectric nanogenerator structure directly produces direct current through friction between material layers, eliminating the need for additional space-consuming electronic components and reducing overall module size

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the power generation function and the direct current output function into a single integrated triboelectric nanogenerator structure. The friction-induced charge separation and direct current generation occur within the same device architecture, eliminating the need for separate rectifier circuits and reducing module size

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

Enables direct current generation without additional components, reducing module size and cost, and providing a continuous, pollution-free, inexhaustible energy source suitable for applications like insoles and decorative LEDs.

Implementation Method 1

allowing for direct current output without additional circuits by utilizing friction-induced electrostatic fields and switching electrodes

Methodology Applied
Scientific EffectFriction-induced electrostatic field: Triboelectric Effect

Data Source

PatentUS12489379B2Self-driven power generation module and manufacturing method thereof
Publication Date: 2025.12.02 SAN FANG CHEM IND
  • US12489379B2 patent drawing
  • US12489379B2 patent drawing
  • US12489379B2 patent drawing

AI summary

A self-driven power generation module and a manufacturing method thereof are provided. The self-driven power generation module includes an upper structure, a lower structure, and a charge accumulation layer. The upper structure includes a first encapsulating layer, a first supporting layer, and a first electrode layer. The first supporting layer contacts the first encapsulating layer. The first electrode layer contacts the first supporting layer. The lower structure is spaced apart from the upper structure. The lower structure includes a second encapsulating layer, a second supporting layer, a second electrode layer, a third supporting layer, and a third electrode layer. The third supporting layer is disposed on the second encapsulating layer and spaced apart from the second supporting layer. The third electrode layer is disposed on the third supporting layer. The charge accumulation layer is disposed between the upper structure and the lower structure.