Adaptive Electromagnet Array for Wireless Charging Alignment

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Solution Overview

Problem

Existing magnetic type wireless charging transmitting apparatuses have poor adaptability and compatibility with various charging receiving apparatuses due to fixed magnetic structures, leading to charging dead zones, poor communication quality, and low efficiency.

Innovation Solution

A wireless charging transmitting apparatus comprising a charging coil and a plurality of electromagnet units arranged to form an electromagnet array, with a control unit that acquires state information of the charging receiving apparatus to generate configuration information and activate electromagnet units to form a magnetic structure matched with the receiving apparatus, allowing dynamic adjustment of the magnetic structure to ensure efficient charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If fixed magnetic structures are used in wireless charging transmitting apparatus, then the structure is simple and easy to manufacture, but the adaptability and compatibility with various charging receiving apparatuses deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidadaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by replacing fixed magnets with controllable electromagnet units that can dynamically adjust their magnetic field strength and polarity. The control unit activates specific electromagnet units based on the position and type of the charging receiving apparatus, enabling the magnetic structure to adapt dynamically rather than remaining static. This resolves the contradiction by making the structure manufacturable (using standard electromagnet components) while achieving high adaptability through dynamic control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by varying the magnetic field parameters (strength and polarity) of electromagnet units based on the state information of the charging receiving apparatus. The control unit adjusts the configuration information of activated electromagnet units to match different receiving apparatus types, positions, and orientations. This allows the same physical structure to serve multiple functions with different parameter settings, resolving the contradiction between simple manufacturing and high adaptability.

Inventive Principle:
Principle #35Parameter changes

2Device complexity

If fixed magnetic structures are used in wireless charging transmitting apparatus, then the device complexity is low, but the charging efficiency and communication quality deteriorates due to charging dead zones

Engineering Contradiction:
Improvedevice complexityVSAvoidcharging efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent uses dynamics to activate only the necessary electromagnet units based on the detected position and type of the charging receiving apparatus. Instead of having all electromagnet units permanently active or requiring a complex fixed structure covering all possible positions, the system dynamically selects and activates specific units, reducing overall device complexity while eliminating charging dead zones through adaptive coverage.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies segmentation by dividing the magnetic structure into multiple independent electromagnet units arranged in an array. Each unit can be independently controlled and activated based on the specific charging scenario. This segmentation allows the system to cover various positions and orientations of receiving apparatuses without requiring a single complex fixed structure, thereby improving charging efficiency while maintaining manageable device complexity.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If fixed magnetic structures are used in wireless charging transmitting apparatus, then the manufacturing cost is low, but the compatibility with various types of magnetic type structures deteriorates

Engineering Contradiction:
Improvemanufacturing costVSAvoidcompatibility
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent implements universality by designing the electromagnet array and control unit to serve multiple functions with a single structure. The same electromagnet units can be configured to support different types of magnetic charging receiving apparatuses (e.g., different phone models, orientations, and positions) by adjusting the activation patterns and field parameters. This universal design achieves high compatibility without requiring multiple specialized fixed magnetic structures, maintaining low manufacturing cost while expanding adaptability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 enables effective compatibility and adaptability with various charging receiving apparatuses, improving charging efficiency and user experience by dynamically configuring the magnetic structure to align the charging receiving apparatus with the charging coil.

Implementation Method 1

a plurality of electromagnet units arranged around the charging coil to form an electromagnet array; and a control unit for acquiring state information of a charging receiving apparatus, generating configuration information of the respective electromagnet units, and activating and configuring the electromagnet units to be a magnetic structure matched with the charging receiving apparatus

Methodology Applied
Scientific EffectElectromagnetism: Electromagnet

Implementation Method 2

a charging module comprising a charging coil;

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11888330B2Wireless charging transmitting apparatus and method thereof
Publication Date: 2024.01.30 DELTA ELECTRONICS (SHANGHAI) CO LTD
  • US11888330B2 patent drawing
  • US11888330B2 patent drawing
  • US11888330B2 patent drawing

AI summary

The present application provides a wireless charging transmitting apparatus, comprising: a charging module comprising a charging coil; a plurality of electromagnet units arranged around the charging coil to form an electromagnet array; and a control unit for acquiring state information of a charging receiving apparatus, generating configuration information of the respective electromagnet units, and activating and configuring the electromagnet units to be a magnetic structure matched with the charging receiving apparatus, and the control unit controlling the charging module. The application further provides a method for controlling charging using the wireless charging transmitting apparatus. According to the embodiments of the application, the wireless charging transmitting apparatus is effectively compatible with and adapted to various types of charging receiving apparatuses by configuring the electromagnet units according to the state information of the charging receiving apparatus.