Steam Iron Pump Cutoff Using Position Sensor Control
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Solution Overview
Problem
Conventional steam irons require complex internal cold water circuits to prevent steam bursts in alternative positions deviating from the horizontal working position, leading to inefficiencies and potential calcification issues.
Innovation Solution
A steam iron with a position sensor, such as a ball sensor, that deactivates the pump in alternative positions, combined with a timer to prevent premature deactivation during horizontal working, and a manual steam boost element for independent steam generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex internal cold water circuit is used to prevent steam bursts in alternative positions, then steam bursts are prevented, but device complexity increases
Solution Approach 1:
The patent replaces the complex mechanical cold water circuit system with a simple position sensor and pump control system. The position sensor detects when the iron is in an alternative position and signals the pump controller to stop pumping cold water, thereby preventing steam bursts without requiring complex internal water circuits.
Solution Approach 2:
The invention extracts the position detection function from the complex cold water circuit system and implements it as a separate, simple position sensor. This allows the pump control to be independently adjusted based on position, simplifying the overall system architecture while maintaining reliability.
2Reliability
If the pump is deactivated in alternative positions, then steam bursts are prevented, but steam generation capability is reduced
Solution Approach 1:
The patent implements dynamic pump control based on the iron's position. The pump is activated when the iron is in the horizontal working position to enable steam generation, and deactivated when in alternative positions to prevent steam bursts. This dynamic adjustment optimizes both productivity and reliability according to operational context.
Solution Approach 2:
The position sensor provides feedback about the iron's orientation to the pump controller, which then adjusts pump operation accordingly. This feedback loop ensures the pump operates only when needed for steam generation and remains inactive when deactivation prevents steam bursts, balancing productivity and reliability.
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
Simplifies device technology by preventing steam bursts in non-horizontal positions while maintaining sole heating and preventing calcification, ensuring reliable and high-quality ironing performance.
Implementation Method 1
the position sensor is a ball sensor with a ball which is in an open position in the horizontal working position and in a closed position in the alternative position
Implementation Method 2
a steam generating device for generating steam, which has a steam chamber and a heating device
Data Source
Figure 1
AI summary
A steam iron for domestic use is disclosed, with a steam generating device for generating steam, which has a steam chamber and a heating device, with a water tank for providing cold water for the steam generating device and with a pump for conveying cold water into the steam chamber, the steam iron has a position sensor for determining positions of the steam iron, the pump being deactivated in an alternative position deviating from a horizontal working position. The invention is particularly suitable for providing a steam iron for domestic use, with simple and reliable deactivation of a pump outside of a horizontal operating position of the steam iron.