Motion-Powered LED Safety Device via Electromagnetic Induction
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Solution Overview
Problem
Conventional self-luminous devices for pedestrian safety rely on mercury batteries, which are environmentally harmful and prone to issues like pollution, leakage, and damage due to lack of waterproofing, posing challenges for energy conservation and traffic security.
Innovation Solution
A power generating device using electromagnetic induction, comprising a first shell, a sensor module, a magnetic module, and an elastic element, which generates power through relative movement, eliminating the need for mercury batteries by converting mechanical energy into electrical energy to power LED lights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If mercury batteries are used in self-luminous devices, then the devices can provide continuous power for pedestrian visibility, but the devices cause environmental pollution and are prone to leakage and damage
Solution Approach 1:
The patent removes the harmful mercury battery component from the self-luminous device and replaces it with a power generation mechanism that converts mechanical energy (from pedestrian movement) into electrical energy. This extraction of the harmful element eliminates pollution and leakage risks while maintaining continuous power supply capability through renewable energy generation.
Solution Approach 2:
The device enables self-power generation by utilizing the pedestrian's own movement to generate electricity through electromagnetic induction. The mechanical energy from the pedestrian's motion is converted into electrical energy to power the LED lights, making the device self-sufficient and eliminating dependence on polluting batteries.
2Ease of operation
If thin-type batteries are used to power self-luminous devices, then the devices can be portable and functional, but the devices require high-grade waterproofing equipment to prevent current leakage and damage
Solution Approach 1:
The patent removes the battery component entirely and replaces it with a power generation system that converts mechanical energy to electrical energy. This eliminates the need for waterproofing batteries, reducing the complexity of waterproofing requirements while maintaining portability through the simpler mechanical-to-electrical conversion mechanism.
Solution Approach 2:
The patent replaces the chemical energy storage system (batteries requiring waterproofing) with a mechanical energy conversion system (electromagnetic induction). This substitution eliminates the need for complex waterproofing while maintaining the device's portable and functional characteristics through motion-based power generation.
3Object-affected harmful factors
If electromagnetic induction is used to generate power in the device, then the device can eliminate mercury batteries and reduce environmental pollution, but the device requires relative movement between components to generate electricity
Solution Approach 1:
The device utilizes the pedestrian's natural movement to generate electricity through electromagnetic induction. The relative movement between the magnet and coil, caused by the pedestrian's motion, automatically generates electrical energy to power the device, converting the requirement for movement into a beneficial power generation mechanism that eliminates polluting batteries.
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 device provides a sustainable and safe solution for pedestrian visibility at night, enhancing traffic security by generating power automatically without external batteries or power sources, reducing environmental impact and the risk of battery-related issues.
Implementation Method 1
the induction coil to induct a change in magnetic flux to generate induced current
Implementation Method 2
the elastic element is compressed with respect to the external force and a restoring force of the elastic element is applied to the first shell and the second shell when the external force is vanished
Data Source
AI summary
The present invention provides a power generating device, comprising the first shell, the sensor module, the second shell, the magnetic module, the cover and the elastic element. The sensor module is disposed in the first hollow portion. The second shell is disposed on the first shell. The magnetic module is disposed on the first fixture portion of the second shell. The cover is disposed on the external surface of the second shell, and the convex portion penetrates through the hole and holds the magnetic module in the first fixture portion. The elastic element is disposed between the first shell and the second shell. When the power generating device takes the external force, the second shell and the first shell do the relative movement; meanwhile, the first magnetism element of the magnetic module slides through the direction of the external force in the first slide gap and the induced current is generates on the induction coil by the change of the magnetic flux.