Hard Surface Vacuum Suction Control by Wiper Lip Stress Detection
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Solution Overview
Problem
The energy consumption of portable hard surface suction devices is limited by the charging capacity of rechargeable batteries and energy consumption of the suction unit, necessitating a reduction in operational energy usage.
Innovation Solution
Incorporating a stress detection device that automatically switches on the suction unit when the wiper lip is pressed against a hard surface and switches it off when the lip is removed, utilizing sensors such as force transducers, touch sensors, timers, and movement sensors to ensure the suction unit operates only during cleaning, thereby reducing unnecessary energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suction unit is kept on continuously to ensure immediate suction capability, then the readiness for use is improved, but the energy consumption increases
Solution Approach 1:
The suction unit automatically detects when it needs to operate through the stress detection device. When the wiper lip is pressed against the hard surface, the resulting mechanical stress triggers automatic activation of the suction unit without user intervention, making the system self-regulating and eliminating unnecessary continuous operation
Solution Approach 2:
The stress detection device provides real-time feedback about the operational state of the wiper lip. When mechanical stress is detected (indicating the wiper is pressed against the surface), the control device receives this feedback and automatically activates the suction unit, ensuring it operates only when needed
2Use of energy by moving object
If the suction unit is activated manually to reduce energy consumption, then the energy efficiency is improved, but the operational convenience deteriorates
Solution Approach 1:
The manual mechanical switching action is replaced by an automatic sensor-based system. The stress detection device uses mechanical sensors to detect when the wiper lip is pressed against the surface, and the control device automatically activates or deactivates the suction unit based on this detection, eliminating the need for manual switching while maintaining energy efficiency
Solution Approach 2:
The system automatically manages its own operation state based on actual usage conditions. The suction unit activates itself when the wiper is pressed against the surface and deactivates when removed, making the system self-regulating and eliminating unnecessary manual intervention
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 reduces energy consumption by ensuring the suction unit is only active when in use, extending battery life and improving operational efficiency by automatically managing the power based on mechanical stress and user readiness.
Implementation Method 1
the acting reaction force is detected with the aid of at least one force transducer
Implementation Method 2
mechanical stress on the hard surface suction device resulting from the pressing of the at least one wiper lip against the hard surface can be detected by means of the stress detection device
Implementation Method 3
under the effect of which a negative pressure can be generated, so that a liquid-air mixture can be sucked into a housing of the hard-surface suction device via the suction nozzle
Implementation Method 4
With the aid of the at least one separating element, liquid can be separated from the liquid-air mixture sucked in
Implementation Method 5
at least one rechargeable battery for supplying energy to the suction unit
Data Source
Figure 1
Figure 2
Figure 3~5
AI summary
The invention relates to a method for operating a portable hard surface vacuum cleaning device for removing a liquid/air mixture from a hard surface by suction, the hard surface vacuum cleaning device having a suction nozzle with at least one flexible wiper lip which can be pressed against the hard surface, a suction unit, and a separation device which is arranged in the flow path between the suction nozzle and the suction unit and which is connected to a dirty liquid tank, and the hard surface vacuum cleaning device having a control device for switching the suction unit on and off, and a rechargeable battery. In order to develop the method such that the energy consumption of the hard surface vacuum cleaning device can be reduced, mechanical strain on the hard surface vacuum cleaning device resulting from the at least one wiper lip pressing against the hard surface is detected, and the suction unit is automatically activated if such mechanical strain is present. Further disclosed is a hard surface vacuum cleaning device (10; 100) for performing the method.