Tilted-Face Triboelectric Generator for Continuous Power Generation
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Solution Overview
Problem
Conventional triboelectric generators operating in contact separation mode have low power efficiency as they generate electric charge only when the positively charged body is in contact, whereas sliding-mode triboelectric generators can improve power generation efficiency by continuously generating electric charge during reciprocating motion, but require optimization for enhanced performance.
Innovation Solution
A high-power sliding-mode triboelectric generator with a tilted-face structure, featuring a positively charged body and a negatively charged body tilted at a predetermined angle, where the positively charged body transfers positive charges to a positive electrode and the negatively charged body transfers negative charges to a negative electrode, with a spacer maintaining an interval between them to facilitate continuous charge generation during reciprocating motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional contact separation mode triboelectric generator is used, then the structure is simple, but the power generation efficiency is low because electric charge is generated only when the positively charged body is in contact
Solution Approach 1:
The patent introduces a tilting mechanism that allows the charged bodies to dynamically adjust their orientation during reciprocating motion. The bodies tilt at a predetermined angle to maintain continuous contact and sliding friction, converting static contact charge generation into dynamic continuous charge generation, thereby resolving the contradiction between simple structure and low efficiency
Solution Approach 2:
The patent achieves continuous charge generation during the entire reciprocating motion cycle by maintaining sliding friction between tilted charged bodies. The tilting structure ensures that contact and friction occur continuously rather than intermittently, eliminating idle periods and maximizing power generation throughout the motion cycle
2Productivity
If a sliding-mode triboelectric generator is used to continuously generate electric charge during reciprocating motion, then power generation efficiency improves, but the structure requires optimization for enhanced performance
Solution Approach 1:
The patent optimizes the tilting angle parameter to a predetermined value that maximizes both charge generation efficiency and manufacturing feasibility. By fixing the tilt angle, the design balances performance optimization with manufacturing simplicity, avoiding complex adjustable mechanisms while achieving continuous friction-based power generation
3Productivity
If the charged bodies are kept in continuous contact to generate frictional electricity, then charge generation is continuous, but the contact area may be insufficient
Solution Approach 1:
The patent introduces a tilting dimension to the charged bodies, transforming the contact interaction from a single-plane surface contact to a three-dimensional sliding friction contact. The tilt creates a sliding component that increases the effective contact and friction area during reciprocating motion, enabling continuous charge generation across a larger interaction surface
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 tilted-face structure enhances power generation efficiency by maintaining contact between charged bodies, allowing continuous voltage and charge generation during motion, outperforming conventional CS-mode generators and enabling efficient energy harvesting, especially in high-traffic areas.
Implementation Method 1
the friction surfaces of the positively and negatively charged bodies being tilted to have a predetermined angle to generate frictional electricity
Implementation Method 2
Two different surfaces cause friction while sliding to generate an electrostatic potential difference and accordingly generate an induced current
Data Source
AI summary
Disclosed is a high-power sliding-mode triboelectric generator including a substrate; a positive electrode formed on the substrate; a positively charged body provided on the positive electrode and formed to be tilted at a predetermined angle from the substrate; a negatively charged body located to be opposite to the positively charged body and formed to be tilted at the same angle as in the positively charged body; a negative electrode provided on the negatively charged body and configured to support the negatively charged body; and at least one spacer formed between the positively charged body and the negatively charged body, is formed of an elastic body, and configured to maintain an interval between the positively charged body and the negatively charged body.