Multi-Directional Electrostatic Generator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrostatic induction type electric power generators are limited to generating power from vibrations in a single direction, failing to utilize external vibrations in multiple directions effectively.
Innovation Solution
The design includes a first and second electrode with a movable configuration along multiple axes, allowing movement in the X-axis, Y-axis, and intersecting Z-axis, which changes the overlapping area and generates power from vibrations in various directions by using elastic members like springs to facilitate movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electrode is designed to move only along a single axis (X-axis), then the structure is simple and easy to manufacture, but the generator cannot utilize vibrations in other directions (Y-axis, Z-axis) to generate power
Solution Approach 1:
The patent applies dimensionality change by enabling the electrode to move not only along the X-axis but also along the Y-axis and Z-axis. This is achieved through a support structure with multiple degrees of freedom that allows the electrode to respond to vibrations from any direction. The electrode's ability to move in three-dimensional space transforms a single-axis system into a multi-axis system, directly resolving the contradiction between directional adaptability and structural complexity.
Solution Approach 2:
The patent implements universality by designing the electrode and support structure to perform multiple functions: responding to vibrations along the X-axis, Y-axis, and Z-axis simultaneously. The support structure acts as a universal mounting that accommodates vibrations from any direction, making the generator adaptable to various vibration sources and environments without requiring separate single-direction generators.
2Productivity
If multiple single-direction generators are used to capture vibrations from different directions, then power generation capacity increases, but the device size and complexity increase
Solution Approach 1:
The patent merges multiple single-direction generation capabilities into a single multi-directional generator. By combining the vibration response capabilities along the X-axis, Y-axis, and Z-axis into one integrated electrode-support structure, the system achieves the power generation capacity of multiple generators while occupying the volume of only one generator, thus resolving the contradiction between productivity and volume.
Solution Approach 2:
The patent adds dimensional freedom to the electrode movement, allowing it to respond to vibrations in three-dimensional space. This dimensional expansion enables a single generator to capture energy from vibrations in all directions, effectively replacing what would otherwise require multiple separate generators arranged in different orientations, thereby reducing the overall system volume while maintaining high power generation capacity.
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 utilizing vibrations in multiple directions, increasing the power generation capacity compared to single-direction systems and reducing the number of generators required, leading to a more compact and efficient power generation unit.
Implementation Method 1
generates electric power by applying charges to electrodes of a variable capacitor, using the charges to generate Coulomb attraction force between opposing electrodes, and converting vibration energy into electric energy
Implementation Method 2
The overlapping area of the electret material electrodes 409, which carries charges, with the opposing conductive surface electrodes 411 increases and decreases as the first substrate 407 vibrates in the X-axis direction. This changes the charge of the conductive surface electrodes 411.
Data Source
AI summary
An electric power generator capable of using external vibrations in various directions to generate power. A fixed substrate having a surface with a plurality of electret electrodes and a movable substrate having a surface with a movable electrode are spaced from each other. The fixed substrate is fixed in the electric power generator. Spring driving bodies support the movable substrate so that the movable substrate elastically moves in any direction within an XY plane when receiving external vibrations.