Mobile Induction Device for Vibration Energy Harvesting
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Solution Overview
Problem
Current technologies for converting movement or vibration into electricity are inefficient due to construction or manufacturing issues, limiting their performance and development in environmentally friendly energy solutions.
Innovation Solution
A mobile induction and power-generation device utilizing multiple magnetic elements with relative movement, comprising an induction movement magnetic element, a displacement magnetic element, and a coil, where the displacement magnetic element with alternating magnetic poles induces the induction movement magnetic element to move along a passive trajectory, generating an alternating magnetic field that induces a current in the coil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If current technologies for movement or vibration-induced electricity generation are used, then electricity can be generated from movement, but the conversion efficiency is poor due to construction or manufacturing issues
Solution Approach 1:
The device is divided into distinct functional modules: a vibration source module that generates vibrations, a magnetic element module that converts vibrations to magnetic field changes, and a coil module that generates electricity. This segmentation allows each module to be optimized independently, improving overall energy conversion efficiency while simplifying manufacturing and assembly processes
Solution Approach 2:
The invention employs dynamic magnetic elements that move relative to the coil in response to vibrations, rather than static configurations. This dynamic arrangement maximizes the changing magnetic flux through the coil during vibration cycles, significantly improving electricity generation efficiency from slight movements
2Productivity
If current vibration-induced generation technologies are used, then electricity generation from slight vibration is possible, but performance is restricted due to poor efficiency
Solution Approach 1:
The invention is specifically designed to harvest energy from mechanical vibrations by converting them into electrical energy through electromagnetic induction. The vibration source causes magnetic elements to oscillate, creating changing magnetic fields that induce current in the coil, enabling efficient electricity generation from slight vibrations that would otherwise be wasted
Solution Approach 2:
The device optimizes energy conversion by carefully selecting and adjusting key parameters including magnetic field strength, coil winding density, vibration frequency, and magnetic element positioning. These parameter optimizations maximize the induced electromotive force in the coil, significantly improving productivity and electricity generation output
3Loss of energy
If multiple magnetic elements with relative movement are used, then energy collection efficiency is improved, but device structure becomes more complex
Solution Approach 1:
Multiple magnetic elements are integrated into a compact arrangement where they share common mounting structures and magnetic circuits. This merging approach allows the system to benefit from multiple magnetic sources improving energy collection efficiency, while the shared structures reduce overall structural complexity compared to separate independent units
Solution Approach 2:
The device employs a nested configuration where magnetic elements are positioned within or around the coil structure in a space-efficient manner. This nesting allows multiple magnetic elements to interact with the coil simultaneously, improving energy collection efficiency without proportionally increasing the device's external dimensions or structural complexity
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 solution effectively converts slight vibrations into electricity, enhancing energy collection and conversion efficiency, allowing for practical usage and efficient recharging at a distance without the need for a direct electricity supply.
Implementation Method 1
The coil is disposed adjacent to the induction movement magnetic element or the displacement magnetic element, is induced by an alternating magnetic field generated by the movements of the induction movement magnetic element or the displacement magnetic element, and generates an induction current due to the alternating magnetic field.
Data Source
AI summary
A mobile induction and power-generation device includes a disc-shaped magnet, a block magnet, and a coil. The block magnet has at least one magnetic pole set each having two adjacent magnetic poles with opposite polarities, and the at least one magnetic pole set moves along a movement trajectory relative to the disc-shaped magnet. The coil is disposed adjacent to the disc-shaped magnet or the block magnet, is induced by an alternating magnetic field generated by the movements of the disc-shaped magnet or the block magnet, and generates an induction current due to the alternating magnetic field.