Foldable Wireless Charging Guidance for Resonance Alignment
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Solution Overview
Problem
The charging efficiency of wireless power receiving devices, especially those in foldable or rollable forms, is often reduced due to varying parameters such as angle, distance, and position, making it difficult for users to optimize placement for maximum efficiency.
Innovation Solution
A wireless power receiving device and a wireless power transmitting device that identify specific parameters affecting charging efficiency and provide content for adjusting these parameters, such as changing the angle between housings or moving one housing relative to another, to enhance charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the wireless power receiving device is placed in various positions to optimize charging efficiency, then the charging efficiency improves, but it becomes difficult for users to determine the optimal placement due to multiple varying parameters
Solution Approach 1:
The system continuously monitors charging efficiency and provides real-time feedback to the user through notifications or visual indicators about the optimal placement position. The wireless power receiving device detects parameters such as angle, distance, and position, then communicates feedback guidance to help users adjust the device to achieve maximum charging efficiency without requiring users to manually determine optimal parameters
Solution Approach 2:
The system automatically detects and adjusts optimal placement parameters without requiring manual user intervention. The wireless power receiving device or transmitting device autonomously monitors charging efficiency and can automatically adjust positioning or provide self-guided placement recommendations, reducing the operational burden on users
2Weight of moving object
If foldable or rollable electronic devices are used to improve portability, then portability improves, but the number of parameters affecting charging efficiency increases making optimization more difficult
Solution Approach 1:
The system provides specialized feedback guidance for foldable and rollable devices that accounts for their unique deformation capabilities. It monitors folding angles, rolling states, and segment positions, then provides targeted feedback to guide users to optimal configurations that maintain both portability and charging efficiency
Solution Approach 2:
The system dynamically identifies which parameters are most critical for charging efficiency in foldable/rollable configurations and provides guidance focused on those specific parameters. It adapts the feedback mechanism to highlight the most influential parameters (such as folding angle or segment alignment) rather than requiring users to optimize all possible parameters simultaneously
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 solution enhances the charging efficiency of wireless power receiving devices and improves the convenience of placement, allowing users to easily optimize the position of foldable or rollable devices for better charging performance.
Implementation Method 1
A wireless power receiving device may include a resonance circuit for wirelessly receiving power
Implementation Method 2
Depending on the angle (or direction) of a magnetic force line formed by a wireless power transmitting device, introduced to the resonance circuit, an eddy current (e.g., induced current based on Faraday's law) formed in the resonance circuit may vary in strength
Data Source
AI summary
A wireless power receiving device includes a first housing, a second housing coupled to the first housing to be changed in relative position with respect to the first housing, a first resonance circuit disposed in the first housing, and at least one processor. The at least one processor may be configured to control the wireless power receiving device to wirelessly receive power from a wireless power transmitting device through the first resonance circuit, identify a charging efficiency corresponding to the received wireless power, and in case the identified charging efficiency is less than a threshold, provide content for changing an angle between the first housing and the second housing.