Steam Iron Preheating Chamber to Prevent Water Ejection
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Solution Overview
Problem
Conventional electric steam irons suffer from the 'long-time steaming phenomenon' and undesirable ironing effects due to residual water in the steam boiler, leading to inefficient steam generation and user experience issues.
Innovation Solution
An electric steam iron design featuring a preheating chamber with a temperature control device, a water supply system, and a vaporization chamber, where the water temperature is maintained between 50°C and 100°C, preventing water ejection and enhancing steam quality, with multiple heating elements and a flow passage for efficient heating, and a water pump for convenient water supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If water is supplied directly to the vaporization chamber from the water tank, then steam generation is simple, but water ejection occurs and ironing effect deteriorates
Solution Approach 1:
The heating system is segmented into two independent chambers: a preheating chamber (first heating element) and a vaporization chamber (second heating element). Water is sequentially processed through both chambers, with the preheating chamber raising water temperature to near-boiling point before it enters the vaporization chamber. This segmentation prevents water ejection by ensuring water is fully vaporized before steam is emitted, thereby maintaining reliable ironing effect.
2Reliability
If a self-contained steam boiler is used to generate steam, then steam purity is improved, but long-time steaming phenomenon occurs after steam release stops
Solution Approach 1:
The preheating chamber performs preliminary heating of water to a temperature close to boiling point (90-95°C) before water enters the vaporization chamber. This preliminary action reduces the thermal mass that needs to be vaporized in the second chamber, enabling faster complete vaporization. Consequently, when steam release stops, residual water is quickly fully vaporized without causing prolonged unwanted steaming, while still maintaining high steam purity through the two-stage heating process.
3Productivity
If multiple heating elements are added for efficient heating, then heating efficiency is improved, but device weight increases
Solution Approach 1:
The heating function is segmented into two specialized elements: a preheating chamber with first heating element (weight <200g) and a vaporization chamber with second heating element. Each element is optimized for its specific function, allowing the use of lighter materials and smaller dimensions for each individual element compared to a single high-power heater. The cumulative weight of the two segmented elements is less than a single equivalent heating element, while achieving superior overall heating efficiency through the two-stage process.
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 configuration prevents long-term steam emission, improves ironing efficiency, and provides a more comfortable user experience with stronger, higher-temperature steam, while being suitable for low-power and cost-effective equipment.
Implementation Method 1
the first heater being provided with a preheating chamber... the water temperature inside the preheating chamber is above room temperature but below 100°C
Implementation Method 2
the second heater is provided with a vaporization chamber... the vaporization chamber is further provided with a vapor discharge hole
Implementation Method 3
the temperature control device is adapted to control the temperature of the first heater
Data Source
Figure 1
AI summary
The present invention relates to an evaporating apparatus having a heater and a temperature controller, characterized in that the heater comprises a first heater and a second heater, the first heater being provided with a preheating chamber and the second heater being provided with a vaporization chamber; that the temperature control device is designed to control the temperature of the first heater, the preheating chamber having a water inlet hole to supply the water into the preheating chamber, a water outlet hole of the preheating chamber is connected to a water inlet hole of the evaporation chamber, and the evaporation chamber is further provided with a steam discharge hole; that the water temperature inside the preheating chamber is above room temperature but below 100°C, and that the weight of the first heater is less than 200g. At the same time, the present invention provides an electric steam iron having the above-mentioned evaporating device, which can effectively overcome the water ejection and steam ejection phenomenon of the prior art, can achieve excellent ironing effect, and is user-friendly.