Lighting Shoe Power Generation via Piezoelectric and Induction
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Solution Overview
Problem
Conventional lighting accessories for pedestrians, which rely on mercury batteries, pose environmental pollution risks and have issues with leakage and damage due to lack of waterproofing, and do not effectively generate energy through simple motions to enhance night-time visibility and safety.
Innovation Solution
A lighting shoe equipped with a power generating device in the heel that uses electromagnetic induction and piezoelectric modules to convert external forces into electric energy, eliminating the need for mercury batteries and providing a waterproof and energy-efficient LED light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mercury batteries are used in lighting accessories, then the lighting function can be achieved, but environmental pollution and leakage problems occur
Solution Approach 1:
The patent removes the harmful mercury battery from the lighting accessory and replaces it with a piezoelectric power generation system. The extraction principle is applied by eliminating the polluting energy source while maintaining the lighting function through an alternative mechanism that converts mechanical energy from walking motions into electrical energy for the LED.
Solution Approach 2:
The lighting accessory becomes self-powered through the piezoelectric module that generates electricity from the user's walking motions. The system serves itself by converting the mechanical energy of movement directly into electrical energy needed for lighting, eliminating the need for disposable mercury batteries and making the device environmentally friendly.
2Reliability
If thin battery is used in lighting accessory, then lighting function is provided, but waterproof mechanism is required which increases complexity
Solution Approach 1:
The piezoelectric module generates electricity directly from walking motions, eliminating the need for separate battery compartments and waterproof sealing mechanisms. The power generation system is integrated into the structure of the lighting accessory, reducing overall complexity while maintaining functionality.
3Reliability
If conventional battery-based lighting accessory is used, then lighting is provided, but it cannot generate energy through simple motions
Solution Approach 1:
The patent replaces the static battery-based electrical system with a dynamic piezoelectric system that converts mechanical energy from walking motions into electrical energy. This substitution enables the lighting accessory to generate its own power through simple bodily movements, improving energy productivity while maintaining reliable lighting function.
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 lighting shoe generates electric energy through user motion, enhancing pedestrian visibility and safety at night without the environmental hazards of mercury batteries, while being waterproof and energy-efficient.
Implementation Method 1
the induction coil generates an induced current by sensing a magnetic flux variation
Implementation Method 2
the first piezoelectric module generates a first charge by absorbing the pressure between the magnetic component and the second casing
Data Source
AI summary
A lighting shoe includes a power generating device. When a user steps on or presses the lighting shoe, the power generating device bears an external force and generates an inducted current or charge by electromagnetic induction or piezoelectric characteristic to supply the LED to light. To be suitable for the thickness, the electrical requirement, or the cost of the lighting shoe, various similar power generating devices are disclosed to match the shoes in the present invention. The lighting shoe of the invention can increase the identification rate in the night, and improve the traffic safety of the user.