Rotatable Magnetic Wireless Charger for Smooth Posture Adjustment

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Solution Overview

Problem

Conventional wireless chargers face challenges in adjusting the posture of to-be-charged devices, leading to adverse user experiences due to inconvenient adjustments and potential damage from sliding friction.

Innovation Solution

A wireless charging apparatus with a rotatable second shell connected to a first shell, equipped with a magnetic attraction assembly and a support mechanism, allowing for smooth adjustment of the device's posture without sliding friction, and a detachable design for easy storage and multiple charging positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the wireless charger uses a fixed structure to limit the to-be-charged device, then the device stability is improved, but the ease of operation deteriorates due to inconvenient posture adjustment

Engineering Contradiction:
Improvedevice stabilityVSAvoidposture adjustment convenience
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed limiting structure into a rotatable one. The second shell is rotatably connected to the first shell, allowing the to-be-charged device to rotate freely while maintaining stability during charging. This dynamic structure enables easy posture adjustment without compromising device stability, directly resolving the technical contradiction between stability and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the wireless charger uses a rotatable second shell, then the ease of operation is improved for posture adjustment, but the device complexity increases due to additional rotation mechanism

Engineering Contradiction:
Improveposture adjustment convenienceVSAvoidrotation mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the charger into multiple independent shells (first shell and second shell) with distinct functions. The second shell houses the rotating interface and magnetic attraction assembly, while the first shell provides structural support. This segmentation allows the rotation mechanism to be isolated and simplified, reducing overall device complexity while maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the wireless charger uses magnetic attraction assembly, then the reliability is improved for device positioning, but the object-generated harmful factors increase due to potential interference with device components

Engineering Contradiction:
Improvedevice positioning accuracyVSAvoidmagnetic interference
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by concentrating the magnetic attraction assembly in specific locations on the second shell, precisely where it is needed for positioning the to-be-charged device. The magnetic force is localized to the charging region, providing strong positioning accuracy only where required, while minimizing magnetic interference in other areas of the device. This localized approach resolves the contradiction between positioning reliability and magnetic interference.

Inventive Principle:
Principle #3Local quality

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

Enhances user experience by facilitating smooth rotation and posture adjustment of devices, reducing friction and damage risks, and supporting multiple charging scenarios with improved stability and efficiency.

Implementation Method 1

the magnetic attraction assembly is used for limiting the to-be-charged device to the charging region through magnetic force

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentEP4645634A1A wireless charging device
Publication Date: 2025.11.05 ANKER INNOVATIONS TECH CO LTD
  • EP4645634A1 patent drawingFigure 1
  • EP4645634A1 patent drawingFigure 2
  • EP4645634A1 patent drawingFigure 3

AI summary

Disclosed is a wireless charging apparatus, including a wireless charging module and a support mechanism. The wireless charging module includes a first shell, a second shell, a magnetic attraction assembly, and a wireless charging assembly. The second shell is rotatably connected to the first shell, and the second shell is rotatable in a circumferential direction of the first shell. The wireless charging assembly is connected to the second shell or the first shell to charge a to-be-charged device. The magnetic attraction assembly is connected to the second shell or the first shell, a charging region corresponding to the wireless charging assembly is formed on the second shell, and the magnetic attraction assembly is used for limiting the to-be-charged device to the charging region through magnetic force. The support mechanism is connected to the first shell to support the wireless charging module. Therefore, the smoothness of rotation of the to-be-charged device can be improved, and the posture of the to-be-charged device can be easily adjusted.