Detachable Auxiliary Battery Design for Wearable Fast Swapping

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Solution Overview

Problem

Wearable electronic devices experience downtime during battery charging, which prevents users from utilizing their intended functions, as embedded batteries are difficult to swap and charging takes significant time.

Innovation Solution

A quick release and connect system with detachable auxiliary components and batteries that allow for rapid battery swapping, utilizing electro-mechanical connectors to transfer power from auxiliary batteries to the onboard rechargeable battery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If batteries are embedded within the wearable device, then device structure is simplified and reliability is improved, but battery swapping becomes difficult and charging time increases

Engineering Contradiction:

Improvedevice reliabilityVSAvoidcharging time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The wearable device is divided into a main device portion and detachable auxiliary components (such as watch bands or earbuds) that contain auxiliary batteries. This segmentation allows the auxiliary components to be quickly removed and replaced, enabling rapid battery swapping without affecting the main device structure. The auxiliary components can be independently charged and swapped in a matter of seconds, effectively reducing charging downtime while maintaining device reliability.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If batteries are embedded within the wearable device, then device stability is improved, but ease of battery replacement deteriorates

Engineering Contradiction:

Improvedevice stabilityVSAvoidbattery replacement ease

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The battery function is extracted from the main wearable device and placed into detachable auxiliary components. These auxiliary components contain auxiliary batteries that can be independently removed and replaced from the main device in a matter of seconds. This extraction maintains the stability of the main device structure while dramatically improving battery replacement ease, as users can simply detach and attach auxiliary components without disassembling the main device.

Inventive Principle:

Principle #2Taking out (Extraction)

3Loss of time

If auxiliary components with auxiliary batteries are provided, then battery charging downtime is reduced, but device complexity increases

Engineering Contradiction:

Improvecharging downtimeVSAvoidsystem complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The auxiliary components serve multiple functions: they contain auxiliary batteries for rapid swapping, provide additional power capacity, and can be detached independently from the main device. The electro-mechanical connectors enable both mechanical attachment and electrical connection simultaneously. This multi-functionality reduces charging downtime while managing system complexity through integrated design where single components perform multiple roles.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Use of energy by moving object

If electro-mechanical connectors are used to connect auxiliary components, then power transfer efficiency is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvepower transfer efficiencyVSAvoidmanufacturing ease

Core Design Contradiction:

Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The electro-mechanical connector integrates both mechanical connection and electrical connection functions into a single component. When the auxiliary component is mechanically attached to the main device, the electro-mechanical connector simultaneously establishes both structural support and electrical power transfer pathways. This merging of functions improves power transfer efficiency while managing manufacturing complexity through integrated design rather than separate mechanical and electrical assembly steps.

Inventive Principle:

Principle #5Merging (Combining)

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

Reduces battery charging downtime to a few seconds by enabling quick battery swaps, minimizing user downtime and maintaining device functionality.

Implementation Method 1

a plurality of electro-mechanical connectors that (i) mechanically connect the plurality of auxiliary components to the device head of the wearable electronic device and (ii) provide an electric channel between the plurality of auxiliary batteries embedded within the plurality of auxiliary components and the onboard rechargeable battery embedded within the device head of the wearable electronic device, wherein electric current flows through the electric channel from the plurality of auxiliary batteries embedded within the plurality of auxiliary components to the onboard rechargeable battery embedded within the device head

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12498776B2Quick battery recharge system for wearable electronic devices

Publication Date: 2025.12.16 BHAGWAN RAGHUNAND

AI summary

A quick release and connect system that provides battery power for a wearable electronic device and a method for reducing battery charging down time of a wearable electronic device are disclosed. The quick release and connect system that provides battery power for a wearable electronic device and the method for reducing battery charging down time of a wearable electronic device reduces battery charging down time of a wearable electronic device by swapping of attachable-detachable auxiliary components with auxiliary batteries.