Steam Iron Pressurization Unit for Higher Steam Flow
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Solution Overview
Problem
Steam irons face limitations in steam pressure and quantity due to gravitational water supply, leading to reduced ironing performance, especially in cordless versions without a direct power supply or steam conduit.
Innovation Solution
A steam iron with a pressurization unit that generates an air vacuum to draw water into a chamber, which is then pressurized when the iron is lifted, allowing water to be supplied under pressure to the steam engine without a separate boiler or pump, enhancing steam flow and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If water is supplied to the steam engine under gravitational force, then the device complexity is reduced, but the steam pressure and quantity are limited
Solution Approach 1:
The pressurization unit utilizes the dynamic motion of lifting the steam iron to activate the pressurization mechanism. When the iron is lifted, the pressurization unit pressurizes water in the chamber, creating a dynamic pressurization system that converts motion into pressure without requiring a separate power source or complex pump mechanism.
Solution Approach 2:
The pressurization unit is self-activating through the user's lifting action. The mechanism automatically pressurizes water when the iron is lifted and supplies pressurized water to the steam engine without requiring manual operation of separate controls or additional energy input, making the system self-service.
2Quantity of substance
If a pump is used to supply water under pressure into the steam engine, then the steam pressure and quantity are improved, but the device complexity increases
Solution Approach 1:
The pressurization unit combines the water storage chamber and pressurization mechanism into a single integrated component within the steam iron. This merging eliminates the need for separate pump assemblies, motor units, and associated control systems, reducing overall device complexity while maintaining pressurized water supply capability.
Solution Approach 2:
The invention replaces complex mechanical pump systems with a simpler pressurization unit that utilizes elastic deformation of the chamber and stored mechanical energy. This substitution eliminates motors, seals, and complex valve mechanisms typical of pump systems, achieving pressurization through purely mechanical means.
3Quantity of substance
If steam is generated in a boiler outside the iron, then the steam pressure and quantity are improved, but the ease of operation deteriorates due to additional components
Solution Approach 1:
The pressurization unit serves multiple functions: it stores water, pressurizes water on demand, and supplies pressurized water to the steam engine. This multi-functionality eliminates the need for separate external boilers and water supply systems, simplifying operation while maintaining high steam output capability.
Solution Approach 2:
The pressurization chamber is nested within the steam iron body, with the water chamber containing the pressurization mechanism. This nested configuration integrates multiple functions into a compact structure that does not require external boilers or separate water supply components, improving ease of operation.
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 solution provides a higher rate of steam flow and pressure, improving ironing performance without the need for manual user action or additional components like pumps or electronics, simplifying the design and operation of the steam iron.
Implementation Method 1
generate an air vacuum in the chamber to draw water into the chamber via the water inlet
Implementation Method 2
pressurise the water drawn in the chamber
Data Source
AI summary
The present application relates to a steam iron (1) for treating garments, comprising a heel (2) to rest the steam iron (1) on a supporting surface (S) when the steam iron (1) is not treating garments, a pressurization unit (3) having a chamber (4) comprising a water inlet (5) for receiving water and a water outlet (6). The pressurization unit (3) is adapted so that, in a rest position (PI) where the heel (2) is placed on the supporting surface (S), it generates an air vacuum in the chamber (4) to draw water into the chamber (4) via the water inlet (5) and, in a lifted position (P2) where the heel (2) is not placed on the supporting surface (S), pressurizes the water drawn in the chamber (4). The steam iron also comprises a steam engine (7) for generating steam from water towards the garments and a water output channel (8) for carrying water under pressure from the water outlet (6) to the steam engine (7). This invention allows easily pressurizing the water in the chamber for in turn increasing the steam generation.