Floor Cleaner Airflow Channeling for Low-Noise Suction
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Solution Overview
Problem
Conventional floor cleaning apparatuses are noisy due to motor and impeller operation, induce vibrations, and have imperfect cleaning in central areas, along with inadequate roller load regulation leading to rapid wear.
Innovation Solution
A floor cleaning apparatus with a suction unit, inlet, and outlet channeling units that include expansion chambers and compression channels to manage airflow and reduce noise, combined with an innovative roller connection system for improved cleaning efficiency and reduced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the rotational speed of the impeller is reduced to decrease noise, then noise level is reduced, but suction performance deteriorates
Solution Approach 1:
The outlet channeling unit is divided into multiple expansion chambers (first expansion chamber, second expansion chamber, third expansion chamber) that segment the airflow path. This segmentation allows the air flow to be managed in distinct stages, reducing turbulence and noise while maintaining suction performance through controlled expansion at each stage.
Solution Approach 2:
The patent introduces expansion chambers that add a volumetric dimension to the airflow path. By creating expansion volumes where air can expand and decelerate gradually, the system reduces noise without compromising suction performance, as the expansion occurs in a dedicated spatial dimension rather than constraining the main suction flow.
2Productivity
If cleaning rollers are used to improve cleaning coverage, then cleaning efficiency is improved, but roller wear increases due to inadequate load regulation
Solution Approach 1:
The patent implements a dynamic load regulation system for cleaning rollers that automatically adjusts the pressing force based on operating conditions. This dynamic adjustment prevents excessive wear by reducing load when not needed while maintaining adequate contact pressure for effective cleaning, thereby extending roller service life without compromising cleaning efficiency.
Solution Approach 2:
The system changes the load parameter acting on cleaning rollers dynamically during operation. By adjusting the pressing force parameter according to actual cleaning needs and surface conditions, the system optimizes the balance between cleaning effectiveness and roller wear, preventing rapid degradation while maintaining high cleaning efficiency.
3Device complexity
If cleaning discs are used to simplify the cleaning mechanism, then device complexity is reduced, but cleaning performance in central area deteriorates
Solution Approach 1:
The patent merges cleaning discs with cleaning rollers in a hybrid cleaning assembly. The cleaning discs provide peripheral cleaning action while the cleaning rollers handle the central area, combining the simplicity of disc mechanisms with the effective central coverage of roller-based systems. This merged approach maintains relatively simple device structure while improving overall cleaning performance.
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 apparatus effectively reduces noise and maintains performance while ensuring efficient cleaning with uniform coverage and extended roller life through advanced airflow management and ergonomic design.
Implementation Method 1
The at least one intercepting wall (100) comprises a plurality of through holes (101). The intercepting wall (100) operates inside the first expansion chamber (31) and is positioned to intercept air flow moving from the impeller outlet side to the outlet port (31a) of the first expansion chamber (31).
Implementation Method 2
The outlet channeling unit (30) connects an outlet side of the suction unit (10) to at least one exhaust aperture (40) of the floor cleaning apparatus (1). The outlet channeling unit (30) includes a first expansion chamber (31) and at least one intercepting wall (100).
Data Source
AI summary
A floor cleaning apparatus (1) is provided including a cleaning assembly (500), a suction unit (10), an inlet channeling unit (20), and an outlet channeling unit (30). The suction unit (10) has a motor (11) and an impeller (12). The inlet channeling unit (20) is in fluid communication with at least one portion of the cleaning assembly (500). The outlet channeling unit (30) connects the suction unit (10) to an exhaust aperture (40). The outlet channeling unit (30) includes a first expansion chamber (31) and at least one intercepting wall (100). The first expansion chamber (31) faces the outlet side of the impeller (12). The at least one intercepting wall (100) comprises a plurality of through holes (101). The intercepting wall (100) operates inside the first expansion chamber (31).