Antenna Member Integration for Compact Wireless Charging Electronics

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Solution Overview

Problem

The challenge of miniaturizing electronic devices with wireless charging functionality is exacerbated by the need for additional components like wireless charging antennas, rectifiers, and converters, which complicates the design and increases size, particularly in wearable devices such as smartwatches and wireless earphones.

Innovation Solution

The integration of a contact member, such as a c-clip, on the antenna member allows for the connection of a wireless charging circuit module to the antenna, enabling the generation of an induced current from an external electromagnetic field, thereby simplifying the design and reducing the size of the electronic device by eliminating the need for additional components on the circuit board.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless charging components (antenna, rectifier, converter) are added to enable wireless charging functionality, then wireless charging capability is achieved, but device size and design complexity increase

Engineering Contradiction:
Improvewireless charging capabilityVSAvoiddevice size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The patent combines the wireless charging antenna with the existing display assembly, making the antenna part of the display structure rather than a separate component. This integration allows wireless charging functionality to be achieved without proportionally increasing device volume, as the antenna utilizes space within the existing display assembly structure

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The display assembly is given multiple functions: it serves as both the display interface and houses the wireless charging antenna. By making the antenna structure part of the display assembly, the same structural space performs dual purposes, reducing the need for additional dedicated space for wireless charging components

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

2Adaptability or versatility

If wireless charging components are integrated into the device, then wireless charging functionality is achieved, but design complexity increases

Engineering Contradiction:
Improvewireless charging capabilityVSAvoiddesign complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The antenna is integrated into the display assembly structure, combining what would traditionally be separate components (display and wireless charging antenna) into a single unified structure. This reduces design complexity by eliminating the need to separately design and coordinate multiple independent components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The antenna is divided into multiple sections (first antenna section and second antenna section) that can be independently configured and optimized. This segmentation allows for simplified design of each individual section while achieving the overall wireless charging function, making the total design more manageable

Inventive Principle:
Principle #1Segmentation

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 solution enhances design flexibility, allows for downsizing of the electronic device, and improves wearability while reducing user fatigue, as it enables efficient power supply and charging without increasing the device's physical dimensions.

Implementation Method 1

As the antenna member generates an induced current in reaction to an external electrical signal or an external electromagnetic field

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11923709B2Electronic device including antenna member for wireless charging
Publication Date: 2024.03.05 SAMSUNG ELECTRONICS CO LTD
  • US11923709B2 patent drawing
  • US11923709B2 patent drawing
  • US11923709B2 patent drawing

AI summary

An electronic device is provided. The electronic device includes a first circuit board, an antenna member disposed to face one surface of the first circuit board, an electronic module disposed between the first circuit board and the antenna member and including a plurality of contact protrusions disposed to face the antenna member, and a plurality of contact members disposed on the antenna member and configured to electrically contact one of the plurality of contact protrusions. As the antenna member generates an induced current in reaction to an external electrical signal or an external electromagnetic field, the electronic module may be configured to supply power using the induced current generated by the antenna member.