Flat Pleated Filter Suction Unit for Compact Vacuum Design
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Solution Overview
Problem
Existing suction devices for cleaning purposes often have a bulky design due to the arrangement of suction units, battery holders, and filter elements, which affects their compactness and stability.
Innovation Solution
A suction device with a flat pleated filter element arranged on the container wall facing the dirt collection container, positioned between the suction unit and battery holder, allowing for a compact design by optimizing the arrangement of components and improving air flow, and featuring a cover element for external air opening to enhance cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cartridge filters are used in vacuum cleaners, then filtration capacity can be achieved, but the overall height of the device increases
Solution Approach 1:
The filter element is transformed from a three-dimensional cartridge shape to a two-dimensional flat pleated configuration. This dimensional change allows the filter to achieve large filtration surface area (high filtration capacity) while maintaining a thin profile (low height), directly resolving the contradiction between filtration capacity and device height.
Solution Approach 2:
The filter element uses pleated construction with specific pleat dimensions (pleat height of 1-5 mm, pleat width of 5-20 mm) to increase the effective filtration surface area within a compact height. By changing the physical parameters of the filter structure (from cylindrical to flat pleated), the filter achieves high capacity without increasing overall device height.
2Reliability
If suction unit, battery holder, and filter element are arranged separately, then each component can function optimally, but the device becomes bulky
Solution Approach 1:
The suction unit, battery holder, and flat filter element are integrated into a compact arrangement where the thin filter is positioned between the suction unit and battery holder. This merging of components in a layered configuration allows each component to maintain its optimal function while significantly reducing the overall device volume compared to separate arrangements.
Solution Approach 2:
The flat filter element is nested between the suction unit and battery holder, creating a compact layered structure. This nesting arrangement allows the filter to be integrated within the existing component space rather than adding to it, achieving compact device design while maintaining all component functions.
3Productivity
If filter element projects into dirt collection container, then air flow is improved, but filter element is more exposed to particles
Solution Approach 1:
The filter element uses a flat pleated design with specific pleat dimensions that optimize both air flow through the filter and protection of the filter media. The pleated structure increases surface area for filtration while the flat configuration reduces particle impact compared to protruding cylindrical filters, balancing air flow productivity with filter protection.
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 compact design achieves a low overall height, improved filter performance, and enhanced stability due to balanced mass distribution, while the external air opening helps in cleaning the filter element, resulting in better cleaning results and ease of use.
Implementation Method 1
The dirt container is pressurized by the suction unit, creating a vacuum.
Implementation Method 2
a filter device with a filter element for filtering the air drawn in from the dirt collection container by the suction unit
Data Source
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AI summary
The invention relates to a suction device for cleaning purposes. The suction device comprises a lower part (14) which has or forms a dirt collection container (30) with a suction inlet (28), an upper part (16) which can be detachably attached to the lower part (14), and which has a suction assembly (56) and a battery recess (88) for at least one battery (102) for providing electrical energy for the suction device (10) and has or forms a container wall (48) limiting the dirt collection container (30), as well as a filter unit (84) having a filter element (134) for filtering the air suctioned out of the dirt collection container (30) by the suction assembly (56), wherein the filter element (134) is a flat-fold filter (138) and is arranged on the side of the container wall (48) facing the dirt collection container (30), wherein the upper part (16) has or forms an extraction chamber (70) and suction air is extracted by the suction assembly (56), via the extraction chamber (70) and the filter element (134) and out of the dirt collection container (30), and wherein the extraction chamber (70) is positioned between the suction assembly (56) and the battery recess (88).