Modular Steam Unit Assembly for Domestic Appliance Retrofitting

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Solution Overview

Problem

The complexity and cost associated with equipping domestic appliances like dryers and washing machines with steam-producing systems are high due to intricate assembly requirements, logistical challenges, and maintenance difficulties, leading to increased costs and effort.

Innovation Solution

A modular steam unit design for domestic appliances that includes essential elements like a steam generator, pump, water reservoir, safety device, and electronic controlling device, facilitated by quick release fasteners and a base plate for easy mounting and disassembly, allowing for universal placement and retrofitting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a steam producing system is equipped in a domestic appliance, then the quality of textile treatment is improved, but the device complexity and assembly cost increase

Engineering Contradiction:
Improvequality of textile treatmentVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The steam producing system is divided into a modular steam unit that can be independently assembled and disassembled. The module includes a steam generator, water reservoir, and necessary components that are pre-assembled as a complete functional unit, allowing simple integration into the domestic appliance without complex assembly procedures

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The steam unit is designed as a universal module that can be applied to different types of domestic appliances (washing machines, dryers) and different appliance configurations. The standardized module interface allows the same steam producing system to serve multiple functions and be installed in various positions within the appliance

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

2Adaptability or versatility

If multiple components are mounted into the appliance for steam production, then the steam functionality is achieved, but the assembly time and logistic effort increase

Engineering Contradiction:
Improvesteam functionalityVSAvoidassembly time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

All components necessary for steam production (steam generator, water reservoir, connections) are pre-assembled into a single modular unit during manufacturing. This eliminates the need for on-site assembly of multiple individual components, reducing assembly time to a simple module installation process

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The steam unit is pre-assembled and pre-configured at the manufacturing stage before being delivered to the customer. All connections, mounting points, and component positions are prepared in advance, so that installation in the domestic appliance requires only placing the complete module into position and securing it

Inventive Principle:
Principle #10Preliminary action

3Reliability

If the steam system components are carefully positioned in the appliance design, then the steam production is optimized, but the logistics and supply costs increase

Engineering Contradiction:
Improvesteam production efficiencyVSAvoidlogistics cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The steam unit is designed as a universal module with standardized dimensions and mounting interfaces that can be installed in various appliance types and configurations. This standardization simplifies logistics and supply chain management, as the same module can serve multiple appliance models without requiring custom positioning or additional components

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

4Adaptability or versatility

If the steam producing system is assembled from separate components, then the functionality is achieved, but the maintenance and repair costs increase

Engineering Contradiction:
Improvesteam functionalityVSAvoidmaintenance cost
Core Design Contradiction:
Adaptability or versatilityVSEase of repair

Solution Approach 1:

The steam producing system is segmented into a modular unit that can be easily removed and replaced. If a component fails, the entire module can be quickly swapped out without disassembling or repairing individual components, significantly reducing maintenance time and cost. The modular design also allows for easy access to internal components if repair is necessary

Inventive Principle:
Principle #1Segmentation

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 modular design simplifies assembly and maintenance, reduces logistical complexity, and lowers costs by enabling quick and easy integration of steam functionality into existing appliances, enhancing the textile treatment process while minimizing service efforts.

Implementation Method 1

the production of steam can take place

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 2

water steam, particularly hot or superheated water steam is fed into the treatment area

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP2458056B1Domestic appliance with a steam unit constructed as a module
Publication Date: 2013.11.20 ELECTROLUX HOME PROD CORP NV
  • EP2458056B1 patent drawingFigure 1
  • EP2458056B1 patent drawingFigure 2
  • EP2458056B1 patent drawingFigure 3

AI summary

A domestic appliance (1), wherein the appliance has a steam unit (2) for producing water steam, especially superheated steam, which is fed to a treatment area (3), especially to a drum, wherein the steam unit (2) is constructed as a module.