Step-Counting Shoe Self-Powering via Electromagnetic Induction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional step-counting devices require batteries that are toxic and difficult to replace, and are often not waterproof, making them inconvenient for use in shoes.
Innovation Solution
A step-counting shoe that generates electrical energy through electromagnetic induction or piezoelectricity, using a power generation device integrated into the shoe body to produce energy from walking motion, powering a pedometer and display device without the need for external batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If conventional batteries are used in step-counting devices, then the devices can operate continuously, but the batteries contain toxic heavy metals that cause environmental contamination and require frequent replacement
Solution Approach 1:
The patent extracts and removes the battery component from the step-counting shoe system. Instead of using conventional batteries, the invention employs a power generation device that converts mechanical energy from walking into electrical energy, thereby eliminating the need for toxic battery materials and their associated environmental hazards while maintaining continuous operation capability
Solution Approach 2:
The power generation device enables the step-counting shoe to generate its own electrical energy through electromagnetic induction or piezoelectric effects during normal walking activity. This self-powering mechanism eliminates dependence on external battery replacement and creates a sustainable energy source that converts the user's natural motion into usable electrical power
2Weight of moving object
If thin batteries are used to make step-counting devices lightweight and portable, then the devices become more convenient to wear, but the batteries are more susceptible to leakage and damage from moisture
Solution Approach 1:
By removing the battery component entirely from the system, the patent simultaneously achieves lightweight portability and eliminates all reliability issues associated with thin batteries, including leakage and moisture damage. The power generation device integrates seamlessly into the shoe structure without requiring vulnerable battery compartments
Solution Approach 2:
The self-generating power system eliminates the need for protected battery compartments. The power generation device can be integrated directly into the shoe's structural elements, such as the sole or insole, converting mechanical stress from walking into electrical energy without requiring sealed enclosures or protective coatings against moisture
3Ease of operation
If batteries are integrated within the shoe body for step-counting functionality, then the devices become more convenient to wear, but the batteries become difficult to replace
Solution Approach 1:
The patent removes the battery from the shoe body integration, eliminating the need for complex battery replacement procedures. The power generation device is designed as a passive mechanical-electrical conversion system that requires no user intervention for maintenance or replacement, thereby maintaining wearability convenience while solving the repair difficulty
Solution Approach 2:
The power generation device operates passively during normal shoe wear, converting mechanical energy from walking into electrical power without requiring user interaction. This eliminates the need for battery replacement entirely, as the system continuously generates its own power during use, maintaining ease of operation while removing all repair 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
The shoe provides a convenient, environmentally friendly, and reliable method for tracking steps and energy production, eliminating the need for battery replacement and ensuring waterproof operation.
Implementation Method 1
when the power generation device is applied with a force, relative motion is produced between the first housing and the second housing for causing the induction coil to generate a magnetic flux to produce an induced current
Implementation Method 2
the first piezoelectricity module absorbs the pressure between the magnetic component and the second housing to produce a first electric charge
Data Source
AI summary
A step-counting shoe comprises a power generation device, a pedometer device, and a display device. When the step-counting shoe is applied with a force, the power generation device produces electrical energy by electromagnetic induction or piezoelectric effect without external power supply, so as to generate power for the pedometer device and the display device automatically during the user walking. Additionally, the present invention provides a variety of types of power generation devices, so a suitable power generation device can be adopted depending on the power demand, thickness of step-counting shoe, and/or costs.