Electrolysis Dehumidifier for LED Fixture Condensation

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Solution Overview

Problem

LED-based lighting fixtures experience condensation issues due to varying temperatures, leading to moisture accumulation and dew formation on internal components, unlike conventional lighting fixtures which typically evaporate moisture at high temperatures.

Innovation Solution

An electrolysis-based dehumidifying device is integrated into the lighting fixture, utilizing a porous electrode and solid polymer electrolyte membrane to draw moisture out through electrolysis, reducing humidity levels and preventing condensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional discharge light sources are used to provide high working temperature, then moisture evaporation is effective, but heat generation is excessive and energy efficiency is low

Engineering Contradiction:

Improveworking temperatureVSAvoidenergy efficiency

Core Design Contradiction:

TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent changes the fundamental parameter of light source technology from conventional discharge lamps to LED technology, enabling operation at lower temperatures while maintaining lighting functionality. This parameter change resolves the contradiction by allowing the system to operate efficiently without requiring high temperatures for moisture evaporation.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the thermal-mechanical evaporation system (relying on high temperature from discharge lamps) with an electrochemical system (electrolysis-based dehumidifying device). This substitution eliminates the need for high temperature operation while effectively removing moisture through electrical current-driven electrolysis.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Use of energy by moving object

If LED based lighting fixtures with lower working temperature are used to improve energy efficiency, then energy consumption is reduced, but condensation problems occur due to temperature variation

Engineering Contradiction:

Improveenergy efficiencyVSAvoidcondensation

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary device (electrolysis-based dehumidifying device) that actively manages moisture levels within the LED fixture. This intermediary component mediates between the low-temperature LED operation and the need to prevent condensation, allowing energy-efficient operation without suffering from moisture-related harmful effects.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The dehumidifying device is integrated directly into the LED fixture, enabling the fixture to self-manage its internal moisture levels. The system serves itself by continuously removing condensation-prone moisture through electrolysis, eliminating the need for external moisture management systems.

Inventive Principle:

Principle #25Self-service

3Object-affected harmful factors

If electrolysis based dehumidifying device is integrated into lighting fixture, then moisture removal is effective, but device complexity increases

Engineering Contradiction:

Improvemoisture levelVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the dehumidifying function with the existing LED fixture structure by integrating the electrolysis-based device into the fixture housing. This combining approach reduces overall system complexity compared to having separate moisture management systems, while still achieving effective moisture removal through the electrolysis mechanism.

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

The solution effectively maintains moisture below critical thresholds, preventing dew formation on internal components, operates with low energy consumption, and is compact enough for narrow spaces, ensuring reliable operation of LED-based lighting fixtures.

Implementation Method 1

utilizing an electrolysis based dehumidifying device to lower humidity level of inside said closed environment, a current being applied to the electrolysis based dehumidifying device whereby the electrolysis based dehumidifying device draws moisture out of said closed environment, through electrolysis

Methodology Applied

Scientific EffectElectrolysis: Electrolysis

Implementation Method 2

The hydrogen ions pass through the solid polymer electrolyte membrane to the cathode side

Methodology Applied

Scientific EffectIon conduction: Conduction (electrical)

Data Source

PatentEP3027967B1A lighting fixture and a method of de-humidifying a water-proof LED lighting fixture.

Publication Date: 2017.10.04 SGM

Figure 1
Figure 2~3

AI summary

A method of removing moisture from a closed environment of inside a LED based lighting fixture, comprises the step of utilizing an electrolysis based dehumidifying device (7, 9) to lower humidity level of inside said closed environment, a current being applied to the electrolysis based dehumidifying device (7, 9) whereby the electrolysis based dehumidifying device (7, 9) draws moisture out of said closed environment, through electrolysis.