Wearable Charging Case Antenna Layout for Folded Glasses

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Solution Overview

Problem

The varying locations of wireless charging antennas on foldable glasses-type wearable devices due to different folding configurations lead to inconsistent charging performance, necessitating a solution to maintain balanced charging across both legs.

Innovation Solution

A charging case with a housing that includes a battery, multiple antennas, and a processor to identify and control charging based on the folding order of the device's leg members, ensuring consistent power delivery regardless of the folding configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless charging antennas are mounted on the legs of foldable glasses, then wireless charging capability is provided, but the locations of antennas vary with folding configurations leading to inconsistent charging performance

Engineering Contradiction:

Improvewireless charging capabilityVSAvoidcharging performance consistency

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The charging case serves as an intermediary device that provides a fixed reference position for the transmission antenna. By placing the transmission antenna in the charging case rather than on the foldable glasses, the system eliminates the variability caused by different folding configurations. The charging case mediates between the power source and the wearable device, ensuring consistent charging performance through stable antenna positioning.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The charging case pre-establishes a fixed antenna position and charging configuration before the user places the glasses inside. This preliminary setup ensures that regardless of how the glasses are folded, the charging parameters are already optimized for consistent performance. The system prepares the charging environment in advance, eliminating the need to adapt to various folding states during charging.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the charging case accommodates multiple folding configurations, then device versatility is maintained, but charging performance balance becomes difficult to maintain

Engineering Contradiction:

Improvefolding configuration flexibilityVSAvoidcharging performance balance

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The charging case acts as a mediator that decouples the transmission antenna position from the wearable device's folding configurations. By fixing the transmission antenna in the charging case and having the wearable device adapt to this fixed position, the system maintains charging performance balance regardless of how the device is folded. The intermediary charging case absorbs the variability, allowing the wearable device to maintain its folding flexibility while ensuring consistent charging.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If transmission and reception antennas are positioned at varying distances, then device adaptability is improved, but charging efficiency and power delivery consistency deteriorate

Engineering Contradiction:

Improvedevice configuration adaptabilityVSAvoidcharging efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The charging case serves as a fixed intermediary that establishes a consistent distance between the transmission antenna (in the charging case) and the reception antenna (in the wearable device). This fixed reference position eliminates distance variability caused by different folding configurations, ensuring consistent charging efficiency and power delivery while still allowing the device to be placed in the charging case in various folded states.

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

Ensures balanced charging of both legs of the wearable device by adjusting wireless charging output according to the device's folding state, maintaining consistent power levels and reducing charging time disparities.

Implementation Method 1

a first antenna and a second antenna disposed in the support part, a third antenna disposed in the second space and configured to receive a first magnetic field from the outside of the housing

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a third antenna disposed in the second space and configured to receive a first magnetic field from the outside of the housing and to supply power to the battery

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS12438400B2Wearable electronic device and electronic device charging the same

Publication Date: 2025.10.07 SAMSUNG ELECTRONICS CO LTD

AI summary

Disclosed is an electronic device. The electronic device may include a housing forming a first space configured to seat an external electronic device and a second space, a battery storing power, a support part disposed within the first space and configured to support the external electronic device when the external electronic device is seated in the electronic device, a first antenna and a second antenna disposed in the support part, a third antenna disposed in the second space and configured to receive a first magnetic field from the outside of the housing and to supply power to the battery. The battery may be disposed in the second space. The battery may radiate a second magnetic field to at least some area of the first space by supplying power to at least one of the first antenna and the second antenna.