Adjacent Water Reservoir Layout for Clean Steam Dryers

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Solution Overview

Problem

Domestic appliances, such as dryers, face challenges in using steam for odor removal as the steam unit requires fresh water free from lime and contaminants, which is not achievable with condensate water due to accumulated dirt and foreign matters.

Innovation Solution

A domestic appliance with a separate water reservoir for supplying clean water to the steam unit, equipped with a filter and sensor for maintaining water quality, and a modular design for easy integration and maintenance, ensuring fresh and contamination-free steam treatment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If condensate water is used for the steam unit, then water consumption is reduced, but water quality deteriorates due to accumulated dirt and foreign matters

Engineering Contradiction:
Improvewater consumptionVSAvoidwater quality
Core Design Contradiction:
Loss of substanceVSObject-affected harmful factors

Solution Approach 1:

The patent segments the water management system into separate functional units: a condensate reservoir for collecting used water and a fresh water reservoir for supplying clean water to the steam unit. This segmentation allows the system to maintain water quality for steam generation while still achieving water conservation through condensate collection and disposal, resolving the contradiction between water consumption reduction and water quality maintenance.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If a separate water reservoir is added for fresh water supply, then water quality for steam unit is improved, but device complexity increases

Engineering Contradiction:
Improvewater qualityVSAvoidappliance structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The water reservoir assembly is designed with multi-functionality: it can store both fresh water for the steam unit and condensate for disposal, includes integrated filtration systems that serve both reservoirs, and provides a unified user interface for water level monitoring and refilling. This multi-functional design reduces the overall complexity compared to having completely separate systems while still maintaining water quality requirements.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If condensate reservoir and water reservoir are hydraulically connected, then water transfer is automated, but risk of contamination increases

Engineering Contradiction:
Improvewater managementVSAvoidcontamination risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces an intermediary filtration system between the condensate reservoir and fresh water reservoir. This intermediary component allows automated water transfer and level balancing while preventing contamination by filtering any potential contaminants from the condensate before it could affect the fresh water supply. The filtration system acts as a mediator that enables automation while maintaining water quality separation.

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

Enables high-quality steam treatment without reintroducing dirt or contaminants into textiles, optimizing the treatment process by ensuring fresh and clean water is always available for steam production.

Implementation Method 1

a steam unit (2) for applying water steam, especially hot or superheated steam, to the textiles

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

liquid is converted into steam, said steam flows through the textiles

Methodology Applied
Scientific EffectPhase change: Phase Change

Data Source

PatentEP2317003B1Domestic appliance with a water reservoir
Publication Date: 2012.08.22 ELECTROLUX HOME PROD CORP NV
  • EP2317003B1 patent drawingFigure 1~2
  • EP2317003B1 patent drawingFigure 3
  • EP2317003B1 patent drawingFigure 4

AI summary

Domestic appliance (1) for textiles, especially home dryer or washing machine, wherein the domestic appliance is a dryer of the condensation type having a condensate reservoir (8), wherein the domestic appliance is equipped with a steam unit (2) for applying water steam, especially hot or superheated steam, to the textiles and wherein a water reservoir (3) is located in or at the domestic appliance (1) for receiving water (4) for the steam unit (2), wherein the water reservoir (3) and the condensate reservoir (8) are arranged adjacently.