Electrostatic Induction Power Generator Board Arrangement
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Solution Overview
Problem
Existing electrostatic induction power generation systems face challenges in accurately controlling the gap between the electret film and electrode, leading to variations in power generation efficiency due to processing precision issues and component tolerances, which result in unstable power output and increased costs.
Innovation Solution
The system employs a board arrangement structure with a reference mounting surface to precisely position the counter electrode, using adjustment mechanisms and a shock protection system to maintain a consistent gap between the electret film and electrode, thereby stabilizing power generation and reducing component variability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional board arrangement structures are used, then manufacturing is simpler, but the gap between electret film and electrode cannot be accurately controlled due to processing precision issues and component tolerances
Solution Approach 1:
The board arrangement structure incorporates self-positioning features where the electret film board and electrode board automatically align and maintain the optimal gap through integrated positioning protrusions and recesses, eliminating the need for complex external adjustment mechanisms while ensuring precise gap control
Solution Approach 2:
The positioning protrusions and recesses are pre-designed into the board structures, establishing the precise gap relationship between electret film and electrode during assembly rather than requiring post-assembly adjustment. This preliminary positioning action ensures consistent gap control across all manufactured units
2Reliability
If component tolerances are relaxed to reduce costs, then manufacturing becomes easier, but power generation efficiency becomes unstable due to gap variations
Solution Approach 1:
The board arrangement structure uses self-compensating positioning features that automatically compensate for variations in component thickness and manufacturing tolerances. The positioning protrusions and recesses ensure that even with relaxed tolerances, the functional gap between electret film and electrode remains consistent, maintaining stable power generation without requiring high-precision components
Solution Approach 2:
The design changes the critical parameter from absolute component dimensions to relative positioning relationships. By focusing on the relative gap maintenance through positioning features rather than controlling absolute thickness of each component, the system achieves stable power generation with relaxed component tolerances
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 allows for precise control of the electret film-counter electrode gap, enhancing power generation efficiency and reducing the impact of component thickness variations, leading to a more stable and efficient energy harvesting process.
Implementation Method 1
electrostatic induction is the phenomenon of an electric charge of a reverse polarity from an electrically charged object being attracted if the electrically charged object is made to approach a conductor
Data Source
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Figure 3
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AI summary
A board arrangement structure includes a housing, a first board fastened to the housing, a second board arranged in parallel enabling relative movement with respect to the first board, an electrically charged film, a counter electrode, and an output part outputting electric power generated between the electrically charged film and the counter electrode, at least one of the electrically charged film and the counter electrode being arranged at a first facing surface of the first board and the other being arranged at a second facing surface of the second board facing the first facing surface, and the first facing surface of the first board being fastened to a reference mounting surface provided at the housing.