Steam Generator Two-Rate Control for Simpler Ironing

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Solution Overview

Problem

Existing steam generators for ironing stations lack simplicity in operation and efficiency in energy consumption, often requiring complex settings and leading to confusion and increased energy usage due to multiple steam output options.

Innovation Solution

A steam generator with a simplified actuating element allowing selection between two optimized steam output rates, reducing energy consumption and improving ironing results by preventing excessive steam emission, which includes a steam boiler, electrovalve, and sensor-controlled heating element with a user-friendly interface for easy switching between low and high steam output.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple steam output rates are provided to improve ironing versatility, then adaptability is improved, but device complexity increases and ease of operation deteriorates

Engineering Contradiction:
Improvesteam output rate selectionVSAvoidoperation simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The steam output rates are segmented into exactly two distinct operating ranges (first and second steam emission rates), which simplifies the selection process while maintaining adaptability for different ironing tasks. This segmentation reduces the complexity compared to having multiple discrete settings.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The actuating element provides dynamic switching between the two steam emission rates, allowing the user to easily transition between high and low power modes during the ironing process. This dynamic control maintains versatility while simplifying operation through a single actuating mechanism.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple steam output rates are provided to improve ironing versatility, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvesteam output rate selectionVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control system is segmented into two distinct operating ranges with a single actuating element that switches between them. This segmentation avoids the complexity of continuous control or multiple discrete switches, maintaining adaptability while reducing device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The single actuating element serves multiple functions: it selects between two steam emission rates, controls the heating element power, and provides user feedback on the current operating mode. This multi-functionality reduces the number of separate components needed.

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

3Productivity

If higher steam emission rate is used to improve smoothing effect, then ironing performance is improved, but energy consumption increases

Engineering Contradiction:
Improvesmoothing effectVSAvoidenergy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The steam generator dynamically adjusts between two power levels (first and second steam emission rates) based on the ironing task requirements. This allows the system to consume high energy only when needed for difficult fabrics, while using low energy for routine ironing, optimizing the balance between productivity and energy consumption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the operating parameters (steam emission rate and heating element power) between two distinct states. By switching between these parameter sets, the user can achieve high productivity when needed while conserving energy during normal operation, directly addressing the energy-performance trade-off.

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 steam generator enables easy operation, reduces energy consumption, and enhances ironing results by allowing users to focus on the task without confusion, promoting higher energy savings and better control over steam output.

Implementation Method 1

a steam boiler (31) with an interior volume for generating steam pressure and a heating element (32) for heating the steam boiler (31)

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a sensor (34) for controlling the heating element (32), wherein the sensor (34) has an electrical characteristic which is detected by a control unit (39)

Methodology Applied
Scientific EffectTemperature sensing: Thermistor

Implementation Method 3

which has an electrovalve (37) through which the steam boiler (31) can be connected to the hose (21) of an iron

Methodology Applied
Scientific EffectElectromagnetic actuation: Electromagnet

Data Source

PatentEP2516722B1Steam generator having an actuating element
Publication Date: 2014.06.04 BSH HAUSGERATE GMBH
  • EP2516722B1 patent drawingFigure 1~2
  • EP2516722B1 patent drawingFigure 3~4
  • EP2516722B1 patent drawingFigure 5~6

AI summary

The invention relates to a steam generator (30) for an ironing station (10) for generating a steam discharge, comprising an actuating element (35), wherein a steam discharge rate of the steam discharge can be selected from exactly two steam discharge rates by means of the actuating element (35). The invention allows a steam generator to be provided for an ironing station, using simple designs and cost-effective means, said generator allowing simpler operation of the ironing.station. The steam generator can in particular save energy. Better ironing results can also be made possible by the steam generator.