Vacuum Cleaner Dirt Container Airflow Lips for Dust Control
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Solution Overview
Problem
Existing vacuum cleaners often have complex mechanisms for emptying dust containers, which can be difficult for users to operate and may result in the distribution of dirt and debris further afield due to poorly designed exhaust vents.
Innovation Solution
A vacuum cleaner design featuring a detachable dirt container with projecting lips that direct airflow away from the dirty air inlet, a simple latch mechanism for easy release, and a filter that is removable and replaceable, along with strategically located air outlets to prevent dust dispersal during emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If exhaust vents are located on the underside of the housing, then the structure is simple, but the exhaust clean air blows dirt and debris away from the nozzle
Solution Approach 1:
The air outlet is repositioned from the underside (vertical dimension) to the side of the housing (horizontal dimension), changing the spatial orientation of exhaust airflow. This dimensional shift allows the exhaust to flow laterally away from the nozzle rather than forward, eliminating the harmful effect of dust dispersal while keeping the structure simple.
2Reliability
If the dirt container has a complex latch release mechanism, then the lid can be secured tightly, but the user may not understand how to release it and may damage the mechanism
Solution Approach 1:
The latch release button is positioned to be actuated by the user's thumb while naturally gripping the handle, making the release mechanism intuitive and self-explanatory. The mechanism serves itself by leveraging the user's natural gripping motion to access the release function, eliminating the need for complex instructions or difficult-to-find release points.
Solution Approach 2:
The latch release button acts as an intermediary element between the user's gripping action and the lid release mechanism. This intermediate component translates a simple thumb press into the mechanical action needed to release the latch, bridging the gap between user intent and mechanism activation while maintaining secure lid closure during normal operation.
3Reliability
If the filter is mounted between the dirt container and the motor fan assembly, then dirt is separated from air flow, but the user must touch the dirty filter when emptying the dust container
Solution Approach 1:
The dirt container is designed as a detachable, separable component from the main vacuum cleaner body. This segmentation allows the container to be removed and emptied separately from the filter assembly, enabling users to empty the container without contacting the filter. The filter remains mounted in the main body, maintaining its dirt separation function while being isolated from the emptying operation.
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 design simplifies the emptying process, reduces the risk of accidental detachment of the dirt container, and minimizes the dispersal of dust and debris, making it easier to maintain and requiring fewer parts and materials.
Implementation Method 1
a motor fan assembly arranged to generate an air flow
Implementation Method 2
a filter for separating dirt from the air flow, the filter being mounted between the dirt container and the motor fan assembly
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A vacuum cleaner 100 comprises a housing 102 and a motor fan assembly 500 arranged to generate an air flow. A detachable dirt container 110 is mountable to the housing 102; the dirt container 110 having a dirty air inlet 122 in fluid communication with the motor fan assembly 500. A filter 202 is for separating dirt from the air flow, the filter 202 being mounted between the dirt container 110 and the motor fan assembly 500. The housing 102 comprises at least one air outlet 512 for exhausting clean air from the motor fan assembly 500. Wherein the detachable dirt container 110 comprises at least one projecting lip 116, 118 arranged to overlap the at least one air outlet 512 when the detachable dirt container 110 is mounted on the housing 102 and direct the air flow away from the dirty air inlet 122.