Thermoelectric dehumidifier

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Solution Overview

Problem

Existing dryers directly exhaust moisture indoors, leading to excessive indoor humidity, which is detrimental to health and causes damp and moldy furniture.

Innovation Solution

A thermoelectric dehumidifier is connected to the dryer, utilizing a thermoelectric module with a refrigeration metal plate, heat insulation, radiator, and fan to condense water vapor from the exhaust air, which is then collected in a water tank.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a dryer directly exhausts moisture indoors, then the drying function is achieved, but indoor humidity becomes excessive leading to health issues and mold growth

Engineering Contradiction:

Improvedrying efficiencyVSAvoidindoor humidity

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the harmful water vapor component from the dryer exhaust air and separates it from the breathable air. The dehumidifier unit captures moisture-laden air through an air inlet, condenses the water vapor on the refrigeration metal plate, and collects the condensed water in a water tank, while the dried air is released back into the indoor environment through an air outlet.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a thermoelectric module as an intermediary device between the dryer exhaust and the indoor air. This module uses a refrigeration metal plate to act as a heat exchange surface where water vapor condenses into liquid water, which is then collected and removed from the air stream, effectively mediating the removal of moisture from the indoor environment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a thermoelectric module is used to condense water vapor, then dehumidification performance is improved, but device complexity increases

Engineering Contradiction:

Improvedehumidification performanceVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical compression-based refrigeration systems with a thermoelectric module that uses solid-state Peltier elements. This substitution eliminates complex mechanical components such as compressors, condensers, and expansion valves, while maintaining the refrigeration function needed for water vapor condensation. The thermoelectric module achieves cooling through electrical current passing through semiconductor materials, significantly simplifying the device structure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes the thermoelectric effect where electrical parameters (current direction and magnitude) are changed to control the thermal parameters (temperature difference between hot and cold sides). By adjusting the electrical current through the thermoelectric module, the refrigeration effect is controlled to optimize condensation performance while maintaining system simplicity.

Inventive Principle:

Principle #35Parameter changes

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 thermoelectric dehumidifier effectively reduces indoor humidity by condensing water vapor from the dryer's exhaust air, improving condensation efficiency and dehumidification performance while preventing moisture buildup.

Implementation Method 1

a thermoelectric module, wherein the housing is provided with an air inlet, and the air inlet is communicated with an air vent of the dryer; a middle partition is arranged in the housing, the thermoelectric module is installed on the middle partition, a cold end of the thermoelectric module is arranged on a front face of the middle partition, and a hot end of the thermoelectric module is arranged on a back face of the middle partition

Methodology Applied

Scientific EffectPeltier effect: Peltier Effect

Implementation Method 2

the air blowing end faces the cold end of the thermoelectric module, and air from the air blowing end blows to a surface of a refrigeration metal plate of the thermoelectric module

Methodology Applied

Scientific EffectCondensation: Condensation

Data Source

PatentUS12215899B1Thermoelectric dehumidifier

Publication Date: 2025.02.04 US GINZZU INC

AI summary

The invention relates to a thermoelectric dehumidifier, comprising a housing and a thermoelectric module, wherein a middle partition is arranged in the housing, a cold end of the thermoelectric module is arranged on a front face of the middle partition, and a hot end of the thermoelectric module is arranged on a back face of the middle partition; the middle partition is also provided with a windshield comprising an air inlet end and an air blowing end which are communicated, heat dissipation air from the hot end enters from the air inlet end and is blown out from the air blowing end, and the air from the air blowing end blows to a surface of a refrigeration metal plate, so that condensed water drops on the surface of the refrigeration metal plate are accelerated to slide into improve condensation efficiency.