Wireless Charging Base Standard Switching for Stable Multi-Device Charging

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Solution Overview

Problem

Existing wireless charging technologies lack flexibility in managing multiple electronic devices with varying wireless charging standards, leading to inefficiencies and potential electromagnetic interference during simultaneous charging.

Innovation Solution

A wireless charging base with multiple units, each supporting various standards, detects the number of devices and available standards, determining and applying appropriate standards for each device to optimize charging and reduce interference by using different frequency bands or communication protocols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a wireless charging base charges multiple electronic devices simultaneously using the same wireless charging standard, then the charging process is simplified, but electromagnetic interference increases and charging stability deteriorates

Engineering Contradiction:
Improvecharging process simplicityVSAvoidcharging stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent dynamically changes the wireless charging standard parameter (frequency band) based on the number of devices being charged. When multiple devices are detected, the system switches from using a single wireless charging standard to using multiple different standards simultaneously, thereby reducing electromagnetic interference while maintaining operational simplicity through automated detection and assignment

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a wireless charging base supports multiple wireless charging standards, then adaptability to different devices improves, but device complexity and management difficulty increase

Engineering Contradiction:
Improvedevice compatibilityVSAvoidstandard management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The wireless charging base automatically detects the number of electronic devices placed on it and autonomously determines the appropriate wireless charging standard for each device without user intervention. The system self-manages the allocation of different standards (first, second, third standards) based on device count, thereby maintaining high adaptability while reducing the perceived complexity for users

Inventive Principle:
Principle #25Self-service

3Device complexity

If the same wireless charging standard is used for all devices, then system complexity is reduced, but electromagnetic interference increases and charging efficiency decreases

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

Solution Approach 1:

The system dynamically adjusts the wireless charging standard parameter based on the number of devices being charged simultaneously. When one device is present, a single standard is used; when multiple devices are present, the system switches to using multiple different standards with different frequency bands, thereby reducing electromagnetic interference and maintaining high charging efficiency while keeping the system complexity manageable through automated control

Inventive Principle:
Principle #35Parameter changes

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 flexibility and efficiency in charging multiple devices by determining optimal wireless charging standards for each device, reducing electromagnetic interference and maintaining stability and efficiency.

Implementation Method 1

Wireless charging refers to the transmission of electrical energy through non-conductive materials. In practical applications, wireless charging usually refers to the transmission of electric energy through a certain space distance. There are four ways to realize wireless charging technology: electromagnetic induction, magnetic resonance, radio wave and electric coupling.

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

Wireless charging refers to the transmission of electrical energy through non-conductive materials. In practical applications, wireless charging usually refers to the transmission of electric energy through a certain space distance. There are four ways to realize wireless charging technology: electromagnetic induction, magnetic resonance, radio wave and electric coupling.

Methodology Applied
Scientific EffectMagnetic resonance: Resonance

Data Source

PatentEP3832838B1Charging control method and apparatus, and storage medium and wireless charging base
Publication Date: 2023.09.06 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP3832838B1 patent drawingFigure 1
  • EP3832838B1 patent drawingFigure 2
  • EP3832838B1 patent drawingFigure 3~5

AI summary

A charging control method, a device, a storage medium and a wireless charging base are provided. The charging control method can be applied to a wireless charging base. The wireless charging base comprises a plurality of wireless charging units, each wireless charging unit supports a variety of wireless charging standards, and each wireless charging unit wirelessly charges for electronic devices. The method includes: detecting whether the wireless charging base simultaneously wirelessly charging a plurality of electronic devices, wherein each wireless charging unit supports a variety of wireless charging standards; if so, obtaining a first number of electronic devices and a second number of wireless charging standards supported by the wireless charging base; determining with each electronic device a wireless charging standard for wireless charging each electronic device according to the first number and the second number; and wirelessly charging each electronic device through corresponding wireless charging unit according to the wireless charging standard determined with each electronic device.