Steam Dryer Water Container Control for Crease Removal

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Solution Overview

Problem

Conventional drying machines fail to completely remove creases from laundry, necessitating additional steps like ironing, and require complex installations for steam suppliers to achieve smooth operation and durability.

Innovation Solution

A drying machine equipped with a steam generator, a detachable water container, a sensor, and a controller that manages the water supplier pump to control steam supply, preventing residual water leakage and ensuring efficient crease removal without ironing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a steam generator is installed to remove creases from laundry, then crease removal capability is improved, but device complexity increases

Engineering Contradiction:
Improvecrease removal capabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The water supply system is segmented into a detachable water container and a fixed steam generator. This allows the water container to be easily removed and replaced by the user, while the complex steam generation components remain fixed and integrated into the machine structure, reducing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The water container is extracted as a separate, detachable component from the steam generator. This extraction allows users to easily refill water without dealing with the complex steam generation system, simplifying the user interface while maintaining effective crease removal functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If a detachable water container is used to simplify water refilling, then ease of operation is improved, but water leakage risk increases

Engineering Contradiction:
Improveease of operationVSAvoidwater leakage prevention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The sensor detects water container detachment before actual water leakage can occur. The controller activates the pump in advance to drain residual water from the supply line, preventing leakage before it becomes a problem. This preliminary action ensures both ease of operation and reliable leakage prevention.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A sensor provides real-time feedback on the water container's attachment state to the controller. This feedback mechanism allows the system to automatically adjust pump operation based on whether the container is attached or detached, ensuring water is drained before detachment to prevent leakage while maintaining simple container replacement operations.

Inventive Principle:
Principle #23Feedback

3Reliability

If a sensor and controller are added to manage water container detachment, then water leakage is prevented, but device complexity increases

Engineering Contradiction:
Improvewater leakage preventionVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses the existing pump that is already part of the steam generator to drain water automatically when detachment is detected. This self-service approach prevents leakage without requiring additional complex drainage mechanisms, minimizing the increase in device complexity while ensuring reliable leakage prevention.

Inventive Principle:
Principle #25Self-service

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 prevents and removes creases on clothes without ironing, while preventing water leakage and maintaining the drying machine's operational integrity.

Implementation Method 1

a steam generator to supply steam to the drum

Methodology Applied
Scientific EffectPhase change (water to steam): Phase Change

Implementation Method 2

a sensor to sense whether the water container is detached or attached

Methodology Applied
Scientific EffectConnection detection:

Data Source

PatentEP2049725B1Apparatus for treating clothes and method for controlling the same
Publication Date: 2015.03.11 LG ELECTRONICS INC
  • EP2049725B1 patent drawingFigure 1
  • EP2049725B1 patent drawingFigure 2
  • EP2049725B1 patent drawingFigure 3

AI summary

An apparatus for treating clothes and a method for controlling the same, which are capable of controlling or preventing formation of creases on clothes, are disclosed. The disclosed apparatus includes a drum (20), a steam generator (200) to supply steam to the drum (20), a water container (300) to store water to be supplied to the steam generator (200), the water container (300) detachable, a sensor (500) to sense whether the water container (300) is detached or attached, a water supplier (400) to supply the water stored in the water container (300) to the steam generator (200), and a controller to control an operation of the water supplier (400) based on a sensing result of the sensor (500).