Wireless Charging Antenna Alignment via Dynamic Positioning
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Solution Overview
Problem
Existing wireless charging technologies face inefficiencies in energy conversion due to mechanical misalignment between the receiving and transmitting antenna boards, leading to wasted time and poor user experience as users adjust devices to optimize charging efficiency.
Innovation Solution
A method and apparatus that detect environmental parameters to adjust the position of the receiving antenna board within an electronic device to a designated position for improved charging efficiency, utilizing driving mechanisms and sensors to ensure optimal alignment and movement within a reserved region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed positioning manner with magnets is used in the center of the ring, then the wireless charging receiving terminal and transmitting terminal can be positioned, but the receiving antenna board cannot be ensured to be located just right on the maximum point of energy conversion efficiency, requiring users to move the device back and forth to find the highest efficiency point
Solution Approach 1:
The patent applies the dynamics principle by making the receiving antenna board movable within the electronic device rather than fixed. The antenna board can dynamically adjust its position to align with the transmitting antenna board's maximum energy conversion point, eliminating the need for users to manually move the entire device during charging.
Solution Approach 2:
The system implements self-service through automatic positioning mechanisms that detect and adjust the receiving antenna board's position autonomously. The charging system itself performs the alignment function, detecting the optimal position and adjusting the antenna board accordingly, rather than requiring user intervention to find the highest efficiency point.
2Measurement precision
If the receiving antenna board is made movable to achieve free positioning, then alignment precision can be improved, but the device structure becomes more complex
Solution Approach 1:
The patent applies segmentation by separating the receiving antenna board from the main device body, allowing it to be independently positioned and adjusted. This modular approach enables precise alignment while keeping the overall device structure manageable, as only the antenna board requires movement mechanisms rather than the entire device.
Solution Approach 2:
The receiving antenna board is nested within the electronic device housing, allowing it to move within a reserved region inside the device. This nesting approach enables the antenna board to be positioned precisely while remaining compact and integrated within the device's overall structure.
3Adaptability or versatility
If multiple overlapped receiving antenna loops are used at the receiving terminal, then free positioning can be achieved with uniform magnetic induction amount, but the device complexity increases
Solution Approach 1:
Instead of using multiple static antenna loops, the patent employs a single receiving antenna board that can dynamically move to different positions. This dynamic approach achieves free positioning capability with a simpler antenna structure, avoiding the complexity of multiple overlapped loops while maintaining the ability to adapt to different transmitting board positions.
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 reduces the time required for alignment and enhances user experience by achieving higher charging efficiency and auxiliary heat dissipation, addressing the inefficiencies and user frustration associated with mechanical misalignment in wireless charging.
Implementation Method 1
For the wireless charging standard Qi introduced by Wireless Power Consortium (referred to as WPC) in the form of electromagnetic induction
Implementation Method 2
detecting an environmental parameter transmitted by a wireless charging device
Data Source
AI summary
Provided are an electronic device and a wireless charging method and apparatus for an electronic device. In the wireless charging method, an environmental parameter transmitted by a wireless charging device is detected (S102); and a receiving antenna board within an electronic device is moved to a designated position according to the environmental parameter, wherein charging efficiency for charging the electronic device at the designated position is higher than charging efficiency for charging the electronic device at other positions (S104). The problems of wasting time and poor user experience caused by adjusting back and forth the electronic device in the process of wireless charging are solved. Free positioning of the antenna can be implemented, and time required by matching the electronic device and a wireless power supply device in the process of wireless charging can be greatly reduced.