Multi-device Wireless Charger with Shielding Partitions

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Solution Overview

Problem

Conventional charging methods for electronic devices face user inconvenience due to physical connection requirements and damage risks, while wireless charging efficiency is lower and can generate excessive heat, potentially damaging devices.

Innovation Solution

An electronic device equipped with multiple wireless charging antennas, shielding partition layers, and a processor that determines the presence of external devices and wirelessly transmits power through corresponding antennas, minimizing interference and heat dissipation through strategic antenna placement and cooling mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless charging is used to eliminate physical connections, then user convenience is improved, but charging efficiency decreases and heat generation increases

Engineering Contradiction:

Improveuser convenienceVSAvoidcharging efficiency

Core Design Contradiction:

Ease of operationVSLoss of energy

Solution Approach 1:

The wireless charging device is divided into multiple independent charging units, each with its own antenna and control circuitry. Each unit can independently detect and charge external devices, allowing the system to optimize power distribution and reduce energy loss by activating only the necessary charging units.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Shielding partitions are introduced as intermediary structures between adjacent wireless charging antennas. These partitions reduce electromagnetic interference and signal leakage between units, improving charging efficiency by directing energy more effectively to the intended target devices.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If wireless charging is used to eliminate physical connections, then user convenience is improved, but heat generation increases which can damage devices

Engineering Contradiction:

Improveuser convenienceVSAvoidheat generation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

By segmenting the charging system into multiple independent units with shielding partitions, the heat generated in each unit is contained and managed separately. This prevents heat accumulation and reduces the risk of thermal damage to devices.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The shielding partitions serve as thermal barriers between adjacent charging units, preventing heat transfer between units and reducing overall heat generation in the charging device.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If multiple wireless charging antennas are placed close together to charge multiple devices, then charging capacity is improved, but interference between antennas increases

Engineering Contradiction:

Improvecharging capacityVSAvoidsignal interference

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The charging device is divided into multiple independent charging units, each with its own antenna. The shielding partitions between units prevent electromagnetic interference, allowing multiple antennas to operate simultaneously without signal conflict, thus maintaining high charging capacity with reliable operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Shielding partitions are positioned between adjacent wireless charging antennas to block electromagnetic interference. These partitions allow multiple antennas to be placed in close proximity for high charging capacity while preventing signal leakage and interference between units.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 convenience by eliminating physical connections, improves charging efficiency, and reduces heat generation, ensuring safe and efficient power transfer to multiple devices simultaneously.

Implementation Method 1

a wireless charging antenna disposed in an area within the housing corresponding to at least a portion of the third face, and a processor configured to enable wireless reception of power to the battery through the wireless charging antenna

Methodology Applied

Scientific EffectElectromagnetic Induction: Electromagnetic Induction

Data Source

PatentUS11557923B2Multi-device wireless charger and electronic device wirelessly charged by the same

Publication Date: 2023.01.17 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device is disclosed. The electronic device discloses a plurality of wireless charging antennas, a plurality of shielding partition layers, at least some of the plurality of shielding partition layers disposed between the plurality of wireless charging antennas, a plurality of external device-receiving grooves formed through spaces defined between pairs of the shielding partition layers, and a processor electrically coupled to the plurality of wireless charging antennas. The processor is configured to: determine whether at least one external device is inserted into at least one of the plurality of external device-receiving grooves, and when the at least one external device is inserted into the at least one of the plurality of external device-receiving grooves, wirelessly transmit power through at least one wireless charging antenna corresponding to the at least one of the plurality of external device-receiving grooves into which the at least one external device is inserted.