Multi-Level Diffuser Flat Bag for Vacuum Cleaner Dust Distribution
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Solution Overview
Problem
Existing vacuum cleaner filter bags suffer from inadequate dust distribution, leading to premature blockage and reduced service life due to dust accumulation between the inflow opening and deflection devices, resulting in insufficient dust storage capacity.
Innovation Solution
A flat bag design with diffusers made of material strips and/or flat structures featuring elongated flow openings, arranged in multiple levels within the bag, which swirl incoming air and dust particles, preventing blockages and enhancing dust storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a small deflection device is attached directly below the inlet opening to redirect air flow, then the device structure is simple and easy to manufacture, but the bag becomes blocked by dust accumulated between the inlet opening and the deflection device, reducing service life
Solution Approach 1:
The diffuser is divided into multiple independent material strips with elongated flow openings arranged in several levels. Each strip acts as an independent flow distribution unit, preventing dust accumulation between strips and maintaining reliable operation throughout the service life.
Solution Approach 2:
The diffuser extends in the longitudinal direction of the bag with multiple levels of material strips, creating a three-dimensional flow distribution structure. This multi-level arrangement distributes dust particles across different spatial dimensions, preventing concentration and blockage at any single location.
2Device complexity
If dust particles are not adequately distributed in the bag, then the bag structure remains simple, but the vacuum cleaner bag becomes prematurely blocked, reducing dust storage capacity
Solution Approach 1:
The diffuser consists of multiple material strips with elongated flow openings arranged in several levels. This segmented structure creates multiple flow paths that distribute dust particles uniformly throughout the bag volume, maximizing dust storage capacity without requiring complex distribution mechanisms.
Solution Approach 2:
The material strips with elongated flow openings act as intermediary elements between the inlet opening and the bag interior. These intermediaries redirect and distribute the incoming dust-laden air flow, preventing direct accumulation at the inlet area and enabling larger dust storage capacity.
3Device complexity
If dust accumulates between the inlet opening and the deflection device, then the simple deflection device structure is maintained, but the bag becomes unusable due to blockage
Solution Approach 1:
The material strips are positioned and dimensioned to create localized flow distribution zones. The elongated flow openings are specifically oriented to redirect air flow away from areas prone to dust accumulation, ensuring that each local region has optimized flow characteristics that prevent blockage while maintaining overall system simplicity.
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 significantly extends the service life of the filter bag by effectively distributing dust and preventing blockages at the inlet opening, thereby improving dust storage capacity and maintaining bag usability.
Implementation Method 1
diffusers which swirl the incoming air
Data Source
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AI summary
The present invention relates to a flat bag for vacuum cleaners, which has at least two diffusers made of strips of material and/or flat structures with elongated flow openings in its interior. Such flat bags are characterized by an excellent dust storage capacity and an extension of the service life.