Drying Electronic Devices Using Segmented Airflow and Desiccant

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Solution Overview

Problem

Electronic devices, especially those worn on the human body like hearing aids and smart watches, face issues with moisture intrusion due to their hygroscopic materials and exposure to high humidity environments, leading to premature battery draining and ineffective drying methods that cannot reliably remove moisture.

Innovation Solution

The development of an apparatus and method that includes a drying chamber with a multi-positional air valve, a pressure-generating device, a moisture-absorbing substance, and sensors, which work together to create a closed-loop air path for efficient moisture removal and simultaneous charging of electronic devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional drying methods are used on electronic devices, then the drying process is simple, but the moisture removal effectiveness is insufficient

Engineering Contradiction:
Improvemoisture removal effectivenessVSAvoiddrying system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The drying system is segmented into multiple functional components: a drying chamber for containing the device, a desiccant block for moisture absorption, a heating element for temperature control, and an air circulation system. This segmentation allows each component to perform its specific function efficiently, achieving reliable moisture removal while maintaining manageable system complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A desiccant block serves as an intermediary substance between the moisture source (electronic device) and the environment. The desiccant actively absorbs moisture from the drying chamber, mediating the moisture removal process and enabling effective drying without requiring direct contact with the device or complex mechanical drying mechanisms

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If heat is applied to remove moisture from hygroscopic materials, then moisture evaporation rate increases, but the material may absorb more moisture from humid air

Engineering Contradiction:
Improvemoisture evaporation rateVSAvoidmoisture re-absorption
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The drying chamber creates a controlled environment where the desiccant block maintains low humidity levels. By continuously absorbing moisture and working with the air circulation system, the chamber establishes a dry atmosphere that prevents hygroscopic materials from re-absorbing moisture even when heated, enabling high evaporation rates without the harmful effect of re-absorption

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

Solution Approach 2:

The desiccant block continuously absorbs moisture throughout the drying process, maintaining a consistently dry environment in the chamber. This continuous moisture absorption action counteracts any tendency for materials to re-absorb moisture from the air, allowing sustained high-temperature drying without moisture re-absorption issues

Inventive Principle:
Principle #20Continuity of useful action

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 effectively removes moisture from electronic devices while also charging them, ensuring a dry and functional state, thereby extending the device's lifespan and improving user experience.

Implementation Method 1

a pressure-generating device, wherein the at least one pressure-generating device is connected to the at least one air valve

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Implementation Method 2

at least one moisture-absorbing substance, wherein the at least one moisture-absorbing substance is connected to the at least one air valve

Methodology Applied
Scientific EffectAbsorption: Absorption (physical)

Data Source

PatentUS12281847B2Methods and apparatuses for drying electronic devices
Publication Date: 2025.04.22 REVIVE ELECTRONICS LLC
  • US12281847B2 patent drawing
  • US12281847B2 patent drawing
  • US12281847B2 patent drawing

AI summary

Methods and apparatuses for drying and charging electronic devices are disclosed. An exemplary method comprises: generating a first air flow, using a first pressure-generating device, through a first air path connecting a drying chamber, the first pressure-generating device, a first heat sink, and a moisture-collecting device; activating a thermoelectric system thermally connected to a thermal transfer device, wherein the thermoelectric system has a first polarity; generating a second air flow, using a second pressure-generating device, through a second air path connecting the second pressure-generating device and a second heat sink; generating an electrical current, by engaging the portable electronic device and a power source; generating a third air flow, using the first pressure-generating device, through the first air path; activating the thermoelectric system, wherein the thermoelectric system has a second polarity; and generating a fourth air flow, using the second pressure-generating device, through the second air path.