Surface Cleaning Head Airflow Segmentation for Debris Pickup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Auxiliary surface cleaning heads face reduced airflow and brush effectiveness due to clogging when dealing with high dirt loads, such as large debris, which impairs the ability to rapidly pick up spills.
Innovation Solution
A surface cleaning head design featuring an air turbine and a dirt tray positioned downstream of the rotary brush, with a separate air turbine chamber to maintain airflow and power the brush, and a dirt barrier to prevent clogging, allowing for efficient collection and sweeping of debris without reducing airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the cleaning head processes high dirt loads with large debris, then the collection capability is improved, but the airflow path becomes clogged reducing airflow rate and brush power
Solution Approach 1:
The airflow path is segmented into two separate paths: a first air flow path that supplies air to the air turbine without passing through the dirt collection area, and a second air flow path that allows dirty air to pass through the dirt tray. This segmentation prevents clogging of the turbine supply path while maintaining the ability to collect large amounts of debris.
2Power
If the airflow rate through the cleaning head is reduced due to clogging, then the air turbine has sufficient power for the brush, but the amount of material that may be entrained in the airflow is reduced
Solution Approach 1:
The airflow path is segmented into two separate paths: a first air flow path that supplies air to the air turbine without passing through the dirt collection area, and a second air flow path that allows dirty air to pass through the dirt tray. This segmentation prevents clogging of the turbine supply path while maintaining the ability to collect large amounts of debris.
3Device complexity
If the air turbine chamber shares the same air inlet as the dirty air inlet, then the structure is simplified, but clogging at the dirty air inlet deprives the air turbine of airflow and reduces brush power
Solution Approach 1:
The airflow path is segmented into two separate paths: a first air flow path that supplies air to the air turbine without passing through the dirt collection area, and a second air flow path that allows dirty air to pass through the dirt tray. This segmentation prevents clogging of the turbine supply path while maintaining the ability to collect large amounts of debris.
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
Enables rapid pickup of large debris and spills by maintaining airflow and brush power, even under high loading conditions, ensuring effective cleaning without clogging the airflow path.
Implementation Method 1
an air turbine drivingly connected to the rotary brush
Implementation Method 2
a rotary brush positioned in the airflow path upstream of the dirt tray and sweeping debris onto the collection surface
Implementation Method 3
A dirty airflow path extends between the dirty air inlet and the dirty air outlet
Data Source
AI summary
A surface cleaning head, such as an auxiliary cleaning head for a vacuum cleaner, has a rotary brush associated with a dirty air inlet and driven by an air turbine. A dirt tray is positioned in the airflow path downstream of the rotary brush. In one embodiment, the air turbine is in an air turbine chamber that is not downstream from the dirty air inlet.