Electret Induction Generator Substrate Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrostatic induction generators face limitations in power generation efficiency due to restricted movement between substrates, which hampers the effective induction and output of charges.
Innovation Solution
The design includes a movable substrate with electret members and collectors on a fixed substrate, allowing for capacitive coupling without direct electrical connection, enabling increased area variation and improved power generation efficiency by alternating the opposition of charge-retaining and conductive regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the first and second substrates are electrically connected through a load during vibration, then charge induction can occur, but the relative movement freedom of substrates is restricted
Solution Approach 1:
The invention divides the substrate into multiple independent electrodes (first electrode and second electrode) that can move independently or with different amplitudes. This segmentation allows each electrode to optimize its movement for charge induction while maintaining overall substrate structural integrity, resolving the contradiction between power generation efficiency and movement freedom.
Solution Approach 2:
The invention introduces a movable substrate that can dynamically adjust its position and movement characteristics relative to the fixed substrate. The movable substrate containing the electret member can vibrate with optimized amplitude and phase independent of the fixed substrate, enabling enhanced charge induction without restricting the natural vibration characteristics of either substrate.
2Reliability
If the substrates are rigidly connected for stable charge induction, then electrical connection is maintained, but the area variation of electret films is limited
Solution Approach 1:
The movable substrate design allows the electret member to dynamically change its position and the effective area opposing the electrodes during vibration. This dynamic area variation enhances charge induction efficiency while the electrical connection through the load remains stable, resolving the contradiction between connection reliability and area variation.
Solution Approach 2:
The invention changes the operational parameters by allowing the movable substrate to vibrate with optimized amplitude and frequency, which dynamically adjusts the overlapping area between the electret member and electrodes. This parameter change enables larger area variation while maintaining stable electrical connection through the load.
3Productivity
If wiring is provided between substrates for electrical connection, then charge output is enabled, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention uses the load as an intermediary element that provides the electrical connection between the fixed and movable substrates. This intermediary approach simplifies the wiring structure by using a single shared connection point rather than multiple independent wiring paths, reducing device complexity while maintaining charge output capability.
Solution Approach 2:
The invention merges the electrical connection function with the mechanical vibration function by using the load as both the electrical pathway and the coupling element between substrates. This merging reduces the number of separate components and simplifies the overall device structure, lowering manufacturing difficulty while enabling charge output.
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 configuration enhances power generation efficiency by allowing increased area variation of electret members relative to collectors, improving kinetic to electric energy conversion without the need for wiring between substrates, resulting in higher power output.
Implementation Method 1
the areas of the electret films located on the regions where the electret films are opposed to the electrodes are increased and decreased, whereby the quantity of charges induced in the electrodes with charges stored in the electret films are changed and the changed charges are outputted (generated) to the load as a current
Implementation Method 2
a second substrate including an electret member
Data Source
AI summary
An electrostatic operating apparatus (electrostatic induction generator) includes a first substrate having a first electrode and a second electrode and set in a state where the first electrode and the second electrode are electrically separated from each other at least on the substrate and a second substrate including an electret member, wherein the first substrate and the second substrate are so provided as to be opposed to each other at an interval and so formed as to be movable relatively with each other, and at least one of the first electrode and the second electrode is so formed as to be capacitively coupled with the electret member.