Vacuum Nozzle Diverter Assembly for Edge Suction Control
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Solution Overview
Problem
Vacuum cleaners often struggle to effectively clean edges and corners due to limited suction control, leading to reduced cleaning efficiency and user experience.
Innovation Solution
A vacuum cleaner with a diverter assembly that includes a movable diverter member and actuator to selectively restrict the suction nozzle opening, allowing for increased suction at the edges and improved cleaning performance, along with edge illumination for enhanced user visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the suction nozzle opening is kept open for general cleaning, then the overall suction coverage is improved, but the suction force at edges and corners is insufficient
Solution Approach 1:
The suction nozzle incorporates a movable diverter member that can dynamically adjust between open and closed positions. This dynamic structure allows the system to adapt suction characteristics in real-time, switching from a general cleaning mode (open position for broad coverage) to an edge cleaning mode (closed position for concentrated suction at edges), thereby resolving the contradiction between overall coverage and edge cleaning effectiveness.
Solution Approach 2:
The system changes the geometric parameter of the suction opening by moving the diverter member between positions. When the diverter member moves to restrict the opening, it alters the airflow parameters (increases velocity, concentrates flow) to enhance edge cleaning performance while maintaining the ability to return to the original open state for general cleaning, thus resolving the performance trade-off.
2Device complexity
If a fixed suction nozzle is used, then the structure is simple, but the suction cannot be selectively concentrated at edges
Solution Approach 1:
The suction nozzle is transformed from a fixed structure to a dynamic one with a movable diverter member actuated by an actuator. This dynamic configuration enables the nozzle to selectively concentrate suction at edges when needed, significantly improving edge cleaning capability while adding only moderate structural complexity through the diverter member and actuator mechanism.
3Ease of operation
If the suction opening is restricted to increase edge suction, then the edge cleaning is improved, but the overall air flow and suction coverage are reduced
Solution Approach 1:
The movable diverter member creates a dynamic airflow management system. When restricted for edge cleaning, it concentrates airflow to enhance edge performance. When opened for general cleaning, it restores full airflow volume for comprehensive coverage. This dynamic adjustment allows the system to temporarily reduce overall airflow volume during edge cleaning without permanent loss of cleaning capability, resolving the trade-off between edge performance and overall airflow.
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
The solution enhances cleaning efficiency by focusing suction at edges and corners, improving debris removal and user experience through adjustable suction control and enhanced visibility during use.
Implementation Method 1
a suction source in fluid communication with the suction nozzle for generating a working airstream through the vacuum cleaner
Data Source
AI summary
A vacuum cleaner includes a base housing having a suction nozzle with a front suction nozzle opening provided on the front of the base housing, a source of suction in fluid communication with the suction nozzle for generating a working air stream through the upper unit, and a diverter assembly to selectively restrict a portion of the front suction nozzle opening.