Wireless Power Repeater Using Resonance Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless power transmission systems are inefficient in charging devices of various sizes and shapes simultaneously and require multiple chargers, as they rely on contact-based or inefficient non-contact methods that are prone to misalignment and reduced charging efficiency.
Innovation Solution
A wireless power transmission system utilizing a repeating coil structure within a charging container that employs resonance coupling to transmit power efficiently to multiple devices regardless of their position, size, or shape, enhancing power transmission efficiency through magnetic flux concentration and in-band communication for optimal power adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a wireless charger is designed to properly charge a specific wireless battery based on its size and capacity, then charging efficiency is improved, but the user must retain various kinds of wireless chargers for different devices
Solution Approach 1:
The patent implements a universal wireless charger that can charge multiple types of wireless batteries simultaneously. The charging main body is designed with a standardized electromagnetic coupling interface that adapts to different battery sizes and capacities through automatic parameter detection and adjustment, eliminating the need for multiple specialized chargers while maintaining high charging efficiency across different device types
2Reliability
If induction coupling is used for wireless charging, then contact contamination and connector failure are eliminated, but power transmission efficiency decreases and alignment requirements increase
Solution Approach 1:
The patent employs magnetic resonance technology that utilizes oscillating magnetic fields at specific resonant frequencies to enhance power transfer efficiency. By tuning the transmitting and receiving coils to match resonant frequencies, the system achieves high efficiency wireless power transmission without requiring precise mechanical alignment or physical contact, thereby resolving both the reliability and efficiency contradictions
3Area of stationary object
If multiple portable appliances with different sizes and shapes are charged simultaneously, then space utilization improves, but existing wireless chargers cannot accommodate all devices
Solution Approach 1:
The patent divides the charging surface into multiple independent charging zones, each capable of simultaneously charging different devices. The charging main body incorporates multiple transmitting coils that can be independently controlled, allowing different power levels and frequencies to be applied to different zones based on the specific requirements of each device being charged
Solution Approach 2:
The system dynamically adjusts charging parameters including power output, frequency, and coil activation based on real-time detection of device presence, size, and power requirements. This dynamic adaptation enables the single charger to efficiently accommodate various device configurations simultaneously without requiring precise placement or manual configuration
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
Enables simultaneous charging of multiple devices with varied sizes and shapes, improving power transmission efficiency even when devices and chargers are not perfectly aligned, by using resonance and magnetic flux concentration techniques.
Implementation Method 1
employing the resonance phenomenon, a repeating part including a repeating coil and a capacitor corresponding to the repeating coil and having a resonance frequency the same as that of the transmission resonance coil is provided at one side of the charging container
Implementation Method 2
a primary circuit operating at a high frequency constitutes the charging main body, and a secondary circuit constitutes a side of the storage battery, that is, is provided in the portable electronic device or the storage battery, so that the current of the charging main body, that is, energy is supplied to the storage battery of the portable electronic device through the induction coupling
Implementation Method 3
enhancing power transmission efficiency through magnetic flux concentration
Data Source
Figure 1~5
Figure 6(a)~7(b)
AI summary
Disclosed is a wireless power repeater. The wireless power repeater repeats power between a wireless power transmitter and an electronic device. The wireless power repeater includes a charging container having at least one side, wherein the charging container has a form for receiving the electronic device, a repeating coil placed at one of the at least one side of the charging container to repeat the power between the wireless power transmitter and the electronic device using resonance.