Vacuum Separating Unit Flexible Flap for Coarse Dirt Absorption
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Solution Overview
Problem
Existing suction apparatuses, particularly handheld vacuum cleaners, face challenges in optimizing the inflow of suction air flow into the separating unit, leading to inefficiencies in coarse dirt absorption and suction performance.
Innovation Solution
A separating unit with a flexible flap having multiple bending points is introduced, allowing the flap to bend and expose the inlet opening to the suction air flow, optimizing the flow direction and enabling efficient reception of dirt particles of various sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed inlet opening is used in the separating unit, then the structure is simple, but the suction performance and coarse dirt absorption are insufficient
Solution Approach 1:
The inlet opening is transformed from a fixed structure to a dynamic one using a flexible flap that can change its state between closed and open positions based on suction air flow conditions, allowing the separating unit to adapt to varying operational requirements and improve suction performance
Solution Approach 2:
The flap's physical state is changed from rigid to flexible, enabling it to deform and bend in response to pressure differences caused by suction air flow, thereby automatically regulating the inlet opening area without complex control mechanisms
2Productivity
If a simple flap closure is used, then the manufacturing is easy, but the inflow optimization and dirt absorption are insufficient
Solution Approach 1:
The flap is segmented into multiple functional zones with different bending characteristics, allowing different portions of the flap to respond differently to suction forces, thereby optimizing the inflow pattern and coarse dirt absorption while keeping the overall structure relatively simple
Solution Approach 2:
A flexible flap made of thin film material is used instead of a rigid closure, allowing it to deform under suction pressure to optimize the inlet opening shape and size for better dirt absorption, while the thin film construction keeps manufacturing relatively simple
3Productivity
If the inlet opening is always open, then the suction air flow is maximized, but coarse dirt particles cannot be effectively absorbed
Solution Approach 1:
The flap system is designed to automatically regulate itself based on suction air flow characteristics, opening to allow maximum flow when needed and closing to enable coarse dirt absorption, without requiring external control mechanisms
Solution Approach 2:
The flexible flap acts as a consumable or replaceable component that can be easily replaced if worn, providing a simple and cost-effective solution for optimizing the balance between suction flow and dirt absorption over time
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 flexible flap design enhances the suction power and reliability of the separating unit by ensuring efficient dirt collection and maintaining high suction performance, even with varying air flow conditions and particle sizes.
Implementation Method 1
the partial area of the total surface of the flap is bent away from the housing wall by a force that acts on the flap from the outside
Implementation Method 2
the suction air flow is introduced into the separating unit and/or guided within the separating unit in such a manner that the suction air flow within the separating unit flows in a cyclonic manner around the central filter unit
Data Source
AI summary
A separating unit for a suction apparatus includes a collection container within a housing wall. A filter unit within the container retains dirt particles from suction air flowing on the filter surface. The container has an inlet opening at the wall closed by a flap having a total surface covering the opening and being fastened to the wall at a main edge. The flap has a main desired bending point on the main edge, enabling bending of the total surface about a main bending axis. The flap has a linear desired bending point enabling bending of a partial area of the total surface facing away from the main edge about an additional bending axis. The flap allows bending of the partial area away from the wall by force acting on the flap from outside, exposing a partial area of the opening corresponding to the partial area of the total surface.