Handheld Vacuum Cleaner Nested Housing for Lightweight Robustness
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Solution Overview
Problem
Portable vacuum cleaners face a challenge in achieving a balance between lightness, compactness, and robustness without compromising suction performance, often resulting in reduced robustness or suction power when attempting to minimize weight and size.
Innovation Solution
The design incorporates a suction unit housing with a second wall that partially covers the first wall, creating an internal space that can house functional components like noise attenuators or filters, reducing the number of external walls needed and allowing for a more compact and lightweight structure while maintaining robustness and suction performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the thicknesses of internal and external walls are reduced to decrease mass and volume, then the portable vacuum cleaner becomes lighter and more compact, but the robustness and lifespan of the device deteriorate
Solution Approach 1:
The patent implements nesting by placing the suction unit housing inside the vacuum cleaner housing, creating a nested structure where the first wall of the suction unit housing is positioned within the vacuum cleaner housing. This allows the internal space to be utilized efficiently without requiring additional external walls, thereby reducing overall mass while maintaining structural robustness through the nested configuration.
2Weight of moving object
If the mass of the suction unit is reduced to lighten the portable vacuum cleaner, then the device becomes lighter, but suction power and suction performance decrease
Solution Approach 1:
The patent applies segmentation by dividing the vacuum cleaner into distinct functional modules: the suction unit housing containing the motor and fan, the internal space for filters and noise attenuators, and the vacuum cleaner housing. This modular segmentation allows the suction unit to be optimized for performance while the housing structure is optimized for lightness, resolving the contradiction between mass reduction and suction power maintenance.
3Ease of manufacture
If the number of walls in the suction unit housing is reduced to simplify manufacturing and reduce mass, then manufacturing becomes easier and mass decreases, but the ability to house functional components like filters and noise attenuators is compromised
Solution Approach 1:
The patent utilizes the third dimension by creating an internal space within the suction unit housing where filters and noise attenuators can be positioned. The first wall and second wall are arranged to define this internal volume, allowing functional components to be housed without requiring additional external walls. This dimensional approach enables manufacturing simplicity while maintaining the capacity to accommodate necessary functional components.
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 allows for a more compact and lightweight portable vacuum cleaner that preserves robustness and suction performance, optimizing internal space usage and simplifying manufacturing.
Implementation Method 1
a suction unit placed on the aeraulic circuit, the ventilation unit suction comprising an electric motor and a fan to generate an air flow in the aeraulic circuit from the suction inlet to the exhaust orifice
Implementation Method 2
a waste separation device placed on the aeraulic circuit in upstream of the suction unit and which is traversed by a flow of air generated by the suction unit when the portable vacuum cleaner is in operation
Implementation Method 3
By waste separation device, reference is made to a separation device, for example of the filter type using at least one filter medium or of the cyclonic type using at least one cyclone, which is capable of separating waste and/or dust from the flow of air sucked in
Data Source
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AI summary
A handheld vacuum cleaner (1) comprising a vacuum cleaner housing (2), a gripping handle (3) connected to the vacuum cleaner housing (2), a suction inlet (4) through which air can be drawn into the handheld vacuum cleaner (1), at least one exhaust port (5) through which the cleaned air can exit the handheld vacuum cleaner (1), an air circuit (6) extending between the suction inlet (4) and the exhaust port (5), a suction unit (7) disposed on the air circuit, the suction unit (7) comprising an electric motor (7.1) and a fan (7.2) coupled to the electric motor (7.1) to generate an airflow in the air circuit (6) from the suction inlet (4) to the exhaust outlet (5), a waste separation device (8) disposed on the air circuit (6) upstream of the suction unit (7) and through which an airflow generated by the suction unit (7) passes when the handheld vacuum cleaner (1) is in operation, a removable bowl (9) for receiving the waste separated by the waste separation device (8) and which is removably attached to the vacuum cleaner housing, a suction unit housing (12) comprising a first wall (12.3) which at least partially covers the suction unit (7). The suction unit housing (12) comprises a second wall (12.4) which at least partially covers the first wall (12.3). The second wall (12.4) is formed at a distance from the first wall (12.3) to delimit, at least in part, an internal space (15) of the handheld vacuum cleaner (1) which extends between the first wall (12.3) and the second wall (12.4).