Steam iron and method for operating a steam iron
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Solution Overview
Problem
Conventional steam irons struggle with droplet formation during steam generation in lower temperature settings, leading to inefficient ironing and potential fabric damage, as they often switch off the pump to prevent droplets in temperature ranges below 100°C, which increases ironing time and reduces quality.
Innovation Solution
A steam iron design that adjusts the soleplate temperature based on steam demand, setting a higher temperature between 120°C and 180°C when steam is required in lower temperature ranges to prevent droplet formation, ensuring steam is generated without droplets and maintaining fabric safety, with the ability to revert to the preselected temperature when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the pump is switched off in lower temperature ranges below 100°C to prevent droplet formation, then droplet-free steam delivery is improved, but ironing time increases and productivity decreases
Solution Approach 1:
The invention changes the temperature parameter dynamically by raising it above the preselected setting when steam is demanded in lower temperature ranges. This allows steam generation without droplet formation while maintaining fabric safety through quick cooling after steam release.
Solution Approach 2:
The controller pre-raises the temperature before steam demand occurs in lower temperature ranges, so that steam can be generated immediately when needed without droplet formation, eliminating the need to switch off the pump.
2Object-affected harmful factors
If the pump is switched off in lower temperature ranges to prevent droplet formation, then fabric safety is improved, but steam availability decreases and ironing efficiency is reduced
Solution Approach 1:
The temperature parameter is dynamically adjusted upward when steam is demanded in lower temperature ranges, enabling reliable steam generation without droplet formation. The temperature is quickly reduced after steam release to maintain fabric safety.
Solution Approach 2:
The invention introduces dynamic temperature adjustment rather than a static pump switch-off mechanism. The temperature is raised temporarily during steam demand and quickly reduced afterward, providing both steam availability and fabric safety.
3Object-affected harmful factors
If a higher temperature is set to enable steam generation in lower temperature ranges, then steam delivery without droplets is improved, but energy consumption increases
Solution Approach 1:
The temperature is raised only temporarily and locally when steam is demanded, rather than maintaining high temperature continuously. This minimizes energy consumption while enabling droplet-free steam generation when needed.
Solution Approach 2:
The high temperature is applied periodically only during steam demand moments in lower temperature ranges, rather than continuously. The temperature is quickly reduced after steam release, reducing overall energy consumption.
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 approach ensures droplet-free steam delivery, reduces ironing time, and enhances the quality of ironing by maintaining fabric safety and efficiency, even in lower temperature settings, while preventing damage to sensitive tissues.
Implementation Method 1
a heating device (10) for heating the water in the steam chamber (8) and for generating steam from the water
Implementation Method 2
a pump (16) for delivering cold water from a water reservoir (12) into the steam chamber (8)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A steam iron (1) is described in which a preset temperature preselection is modified by a controller depending on the presence of a steam request signal by a different soleplate temperature than the preset temperature preselection being regulated by the controller (26). In a lower temperature preselection range in particular, it can thus be ensured that steam can be generated without the formation of droplets by increasing the soleplate temperature of the iron. The method according to the invention describes how steam can be generated without the formation of droplets.