Wireless Charging Alignment via Visual Marking and Stopping Member

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Solution Overview

Problem

Current wireless charging methods are inefficient and inconvenient due to the need for manual adjustment of electronic devices for accurate alignment, often requiring complex and costly modifications to the wireless charger or increased device prices for alignment assistance.

Innovation Solution

An electronic device displays a marking symbol to align with a corresponding symbol on a wireless charging device, using movable clamping arms and a stopping member for hands-free alignment, reducing the complexity and cost of the charging process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple sets of charging transmitting coils are added at multiple locations inside the wireless charger to solve alignment difficulty, then the charging range is enlarged, but the internal structure becomes too complicated and cost increases

Engineering Contradiction:
Improvecharging rangeVSAvoidinternal structure
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent introduces a stopping member as an intermediary element that protrudes from the placement surface to physically guide and limit the position of the electronic device. This mediator component enables accurate alignment without requiring multiple complex coil structures, thus expanding the effective charging area while maintaining simple internal structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a moving mechanism is provided inside the wireless charger to adjust the position of the charging transmitting coil, then alignment difficulty is solved, but the internal structure becomes too complicated and cost increases

Engineering Contradiction:
ImprovealignmentVSAvoidinternal structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Instead of making the charging coil movable to achieve alignment, the patent inverts the approach by making the electronic device position adjustable through a movable stopping member. This inversion simplifies the wireless charger's internal structure while still enabling easy alignment operation.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The stopping member is designed to automatically guide the electronic device into the correct position when placed on the wireless charger. The user simply needs to place the device, and the stopping member self-adjusts to provide the correct alignment, eliminating the need for complex moving mechanisms or manual adjustment procedures.

Inventive Principle:
Principle #25Self-service

3Loss of time

If the electronic device displays a marking symbol to align with the wireless charger, then alignment time is reduced, but the electronic device requires built-in software and detection circuits increasing unit price

Engineering Contradiction:
Improvealignment timeVSAvoidsoftware and detection circuit
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent replaces the expensive software and detection circuit solution with a simple, low-cost visual marking symbol that can be displayed on the electronic device's existing screen. This marking symbol is a simple graphical element rather than a complex detection system, significantly reducing the added cost while still achieving fast alignment.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

4Productivity

If the electronic device is moved and adjusted every time for correct alignment, then charging efficiency is improved, but the process is time consuming and inconvenient

Engineering Contradiction:
Improvecharging efficiencyVSAvoidalignment process time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The stopping member is pre-positioned on the wireless charger to define the correct alignment position before the electronic device is placed. This preliminary positioning action eliminates the need for post-placement adjustment, allowing the device to achieve optimal charging efficiency immediately upon placement without time-consuming manual alignment.

Inventive Principle:
Principle #10Preliminary action

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 method significantly reduces the time and effort required for alignment, improving charging efficiency and convenience while maintaining optimal charging performance across various electronic devices.

Implementation Method 1

at least one wireless charging module inside, located at a position corresponding to the placement surface

Methodology Applied
Scientific EffectElectromagnetic Induction: Electromagnetic Induction

Data Source

PatentEP3675325B1Wireless charging alignment method and system
Publication Date: 2023.04.26 LIN YI SHENG
  • EP3675325B1 patent drawingFigure 1
  • EP3675325B1 patent drawingFigure 2
  • EP3675325B1 patent drawingFigure 3A~3B

AI summary

The disclosure provides a wireless charging alignment method and system, the system comprising an electronic device and a wireless charging device, the electronic device having a display screen capable of displaying at least an marking symbol, the wireless charging device having a placement surface, the wireless charging device being disposed with at least a wireless charging module inside the placement surface, and the wireless charging device further comprising at least a corresponding symbol; the alignment method of the present invention is, in the process of placing the electronic device on the placement surface, to align the marking symbol to the corresponding symbol is aligned with the corresponding symbol, thereby quickly and accurately completing the alignment of the wireless charging, and a better subsequent charging performance can be performed.