Vacuum Cleaner Dust Bag with Spacer Elements for Simplified Cleaning
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Solution Overview
Problem
Existing vacuum cleaners face challenges with dust bag compatibility across different brands, leading to contamination of the dust compartment and hygiene issues due to protruding holding elements, which are often manufacturer-specific and difficult to clean.
Innovation Solution
The dust bag incorporates spacer elements on its cover that extend away from the surface, maintaining a distance from the dust chamber walls, eliminating the need for holding elements on the vacuum cleaner's walls and allowing for easier cleaning and improved hygiene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If holding elements are arranged on the walls of the dust compartment to support the dust bag, then the dust bag is prevented from being pressed into gaps and maintaining suction power is improved, but the contact surface increases which additionally closes the outer surface of the dust bag and causes reduction in suction power
Solution Approach 1:
Instead of arranging holding elements on the dust compartment walls that protrude into the dust bag, the invention inverts the approach by creating recesses in the walls that receive the dust bag. This inversion eliminates the problem of additional contact surface closing the dust bag outer surface while still providing reliable support and maintaining suction power.
2Reliability
If holding elements are arranged on the walls of the dust compartment to support the dust bag, then the dust bag is prevented from being pressed into gaps, but the holding elements are manufacturer-specific and protrude into the dust compartment making cleaning difficult and causing hygiene issues
Solution Approach 1:
The invention inverts the holding element concept by creating recesses in the dust compartment walls instead of protruding elements. This allows the dust bag to be supported and held in position without any parts protruding into the dust collection area, making the dust compartment easy to clean and maintain hygiene standards.
3Volume of stationary object
If the dust bag is arranged in the dust chamber without spacer elements, then the cover can be positioned close to the walls maximizing collection space, but the suction air flow causes pressure reduction that sucks the cover against the walls making it difficult for air to pass through and reducing suction power
Solution Approach 1:
The invention applies preliminary anti-action by providing spacer elements on the dust bag cover before the suction process begins. These spacers preemptively prevent the cover from being sucked against the dust compartment walls during operation, maintaining adequate clearance for air flow and preventing reduction in suction power while still maximizing collection space.
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 spacer elements prevent the dust bag from being sucked into the walls, ensuring efficient dirt collection, simplifying dust compartment cleaning, and enhancing the visual appearance by removing protrusions, while the dust bag change indicator effectively detects the fill level due to a sudden pressure drop.
Implementation Method 1
the suction air flow generated by the fan causes a pressure reduction both in the dust chamber and in the collection chamber of the dust bag
Implementation Method 2
the suction air flow generated by the fan passes through not only the dust bag itself, but also a flow area of the dust chamber surrounding the dust bag
Implementation Method 3
the suction air flow loaded with dirt particles, which can be guided through the inflow opening into the collection chamber, can be filtered by passing through the casing, with at least a large part of the dirt particles being able to be separated
Data Source
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AI summary
The invention relates to a dust bag (1) for a vacuum cleaner (2), comprising a collection chamber (4) enclosed by a flexible cover (3) and an inlet opening (5) arranged in the cover (3), wherein the cover (3) is provided with a plurality of perforations, so that a suction airflow, by means of which dirt particles can be drawn through the inlet opening (5) into the collection chamber (4), can escape from the collection chamber (4) through the cover (3), wherein the perforations have such a small diameter that the passage of at least a predominant proportion of the dirt particles through the perforations is prevented.To provide a dust bag that facilitates simplified cleaning of the vacuum cleaner's dust compartment, the invention provides that the dust bag has at least one spacer element (6) arranged on the casing (3), which extends from an outer surface (7) of the casing (3) in a direction away from the casing (3), so that, during installation of the dust bag (1) in a dust compartment (8) of the vacuum cleaner (2), the casing is kept at least partially spaced away from a wall (9) of the dust compartment (8) by means of the spacer element (6). Furthermore, the invention relates to a vacuum cleaner (2) for cleaning floor surfaces.