Self-Charging Electronic Bracelet With Rotating Electromagnetic Induction
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Solution Overview
Problem
Existing electronic bracelets face challenges in self-sustaining power supply, relying on battery life that requires frequent recharging or replacement, which limits their continuous data collection capabilities during user activity.
Innovation Solution
The electronic bracelet incorporates a design with a first layer containing permanent magnets and a second layer with coils, allowing for electromagnetic induction to generate electricity through user movement, enabling passive and active power generation for the control module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a battery is used to power the electronic bracelet, then the bracelet can function continuously, but the battery requires frequent recharging or replacement which limits continuous data collection
Solution Approach 1:
The electronic bracelet generates its own power through user movement. The first layer with permanent magnets and the second layer with coils form an electromagnetic induction system that converts mechanical energy from wrist motion into electrical energy, allowing the device to recharge itself during normal wear without requiring external charging sources
Solution Approach 2:
The patent transforms the static battery power source into a dynamic energy generation system. The rotatable first layer with permanent magnets interacts with the stationary second layer with coils, creating a dynamic electromagnetic induction mechanism that continuously generates electricity as the user moves their wrist during daily activities or exercise
2Reliability
If a battery is used to power the electronic bracelet, then the bracelet can function, but frequent recharging reduces productivity
Solution Approach 1:
The electronic bracelet becomes self-sufficient by generating its own power through movement. The electromagnetic induction system between the permanent magnets in the first layer and the coils in the second layer converts kinetic energy from wrist motion into electrical energy, eliminating the need for external charging and ensuring continuous operation during data collection activities
Solution Approach 2:
The power generation mechanism operates continuously as long as the user moves their wrist. The rotational motion of the first layer relative to the second layer maintains continuous electromagnetic induction, ensuring uninterrupted power supply for health data collection during exercise or daily activities
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 ensures a continuous and sustainable power supply for the bracelet, enhancing its ability to collect and store user health data without the need for frequent recharging, as the coils can generate electricity through Faraday's law of electromagnetic induction.
Implementation Method 1
the second layer 12 can rotate relative to the first layer 11 through exercise or daily motion of the user to generate electricity for the control module 20
Implementation Method 2
as the coils can generate electricity through Faraday's law of electromagnetic induction
Data Source
AI summary
An electronic bracelet includes a wristband including a first layer and a second layer. The second layer is rotatable relative to the first layer. One of the first layer and the second layer includes a number of permanent magnets. The other of the first layer and the second layer includes a number of coils. A control module is fixed on the wristband. The second layer rotates relative to the first layer to generate electricity for the control module.