Floor vacuum cleaner
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Solution Overview
Problem
Canister vacuum cleaners experience unsatisfactory suction power consistency, with a significant drop in measured volume flow when sucking in 400 g of DMT-8 dust, typically resulting in a 30% reduction.
Innovation Solution
A canister vacuum cleaner design featuring a dust collection device mounted on rollers or skids with a motor blower unit, where the dust chamber and blower chamber are separated by a partition, and an intake duct connects them in a way that air is drawn upwards from the dust chamber into the blower chamber, promoting upward dust movement and separation on the filter bag wall, reducing clogging and maintaining stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the blower chamber is arranged above the dust chamber, then the motor blower unit is positioned high, but this results in a high center of gravity making the vacuum cleaner unstable and difficult to move
Solution Approach 1:
The patent inverts the conventional arrangement by placing the blower chamber next to the dust chamber at the same height rather than above it. This inversion of the vertical stacking arrangement lowers the center of gravity to the bottom of the canister, significantly improving stability and ease of movement while maintaining compact dimensions.
2Reliability
If the intake duct draws air horizontally from the dust chamber, then the structure is simple, but dust does not experience upward movement and the filter bag clogs more easily
Solution Approach 1:
The intake duct is designed to draw air from below the dust chamber and direct it upward through the dust-laden air path before entering the blower chamber. This preliminary upward movement of air and dust particles prevents clogging by ensuring dust is carried away from the filter bag area, maintaining consistent suction power throughout operation.
3Ease of operation
If the dust chamber and blower chamber are arranged side-by-side at the same height, then the center of gravity is low improving stability, but the spatial arrangement becomes more complex
Solution Approach 1:
The patent transitions from a vertical stacking arrangement (one dimension) to a horizontal side-by-side arrangement (another dimension). This dimensional change allows both chambers to be positioned at the same height, lowering the center of gravity and improving maneuverability, while the partition wall efficiently separates the chambers in the horizontal plane.
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
This configuration ensures excellent suction power consistency, reduces the tendency of the filter bag to clog, and allows for easy movement and stable operation due to a low center of gravity, with a compact design suitable for confined spaces.
Implementation Method 1
the intake duct being arranged in such a way that air is drawn upwards out of the dust chamber by means of the motor blower unit
Implementation Method 2
Due to gravity, after the motor fan unit is switched off, at least some of the dust deposited in this area will fall down in the bag
Data Source
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AI summary
The invention provides a canister vacuum cleaner, comprising a dust collection device mounted on rollers and/or skids with a motor fan unit, the dust collection device having a housing in which a dust compartment for accommodating a filter bag and a fan compartment for accommodating the motor fan unit are provided, the fan compartment having of the engine fan unit is arranged next to the dust chamber, the dust chamber and the fan chamber being separated from one another by a partition wall, the dust chamber being fluidically connected to the fan chamber via an intake duct, the intake duct being arranged in such a way that, by means of the engine fan unit, air is drawn upwards out of the Dust space can be sucked through the intake duct into the blower space.