Flat bag for a vacuum cleaner with at least two diffusers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum cleaner filter bags suffer from inadequate dust distribution, leading to premature blocking and reduced service life due to the small deflection device at the inlet opening, which restricts dust storage capacity.
Innovation Solution
A flat vacuum cleaner bag design featuring diffusers made of material strips or flat structures with elongated flow openings at two levels, attached to the bag walls, effectively swirling incoming air and dust particles, preventing blockages and enhancing dust storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a small deflection device is attached directly to the top of the bag at the inlet opening, then the air flow is redirected in the area of the inlet opening, 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 segments (first diffuser segment and second diffuser segment) arranged at different levels within the bag. This segmentation allows dust to be distributed across multiple zones rather than accumulating in a single area, preventing blockages while maintaining effective air flow redirection.
Solution Approach 2:
The diffuser extends in the surface direction of the bag top, utilizing the two-dimensional space available on the bag surface. By spreading the diffuser segments across a larger area of the bag top, the design redistributes dust accumulation zones and prevents concentrated blockages at the inlet opening.
2Reliability
If the deflection device covers a large area of the bag surface, then dust distribution is improved, but the device complexity and material usage increase
Solution Approach 1:
The diffuser segments are positioned at specific locations on the bag top surface, particularly in the area of the inlet opening where dust accumulation is most problematic. This localized approach targets the critical zone for dust distribution without requiring the entire bag surface to be covered, reducing overall complexity.
Solution Approach 2:
The diffuser segments extend beyond the immediate inlet opening area to cover a broader portion of the bag top, providing enhanced dust distribution. This partial coverage approach is sufficient to prevent blockages without requiring complete bag surface coverage, balancing effectiveness with 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 improving dust distribution and preventing blockages at the inlet opening, resulting in enhanced dust storage capacity and prolonged usage.
Implementation Method 1
The diffusers are formed from material strips or flat structures provided with flow openings and cause the incoming air, which is laden with dirt and/or dust particles, to be swirled
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a flat bag for vacuum cleaners which, in the interior thereof, has at least two diffusers made of strips of material and/or textile structures and having elongated flow openings. Flat bags of this type are distinguished by an excellent dust retaining capacity and a prolongation of the period of use.