Flat Suction Head Base Plate for Reduced Vacuum Suction Loss
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Solution Overview
Problem
Existing suction heads for vacuum cleaners experience reduced suction efficiency on carpets, rugs, and hard smooth surfaces due to poor adherence between the base plate and the surface, leading to wasted suction power and inefficiency, especially when using velvet strips that require parallel alignment.
Innovation Solution
A base plate with a completely flat lower face, where the entire surface lies in a single plane, reducing suction losses by ensuring uniform contact and improving adherence, and optionally incorporating strips of velvet embedded in this plane for enhanced cleaning performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the base plate is designed with a non-flat lower face (conventional design), then the structure allows for easier manufacturing and assembly, but the adherence between the base plate and the surface is poor, leading to reduced suction efficiency
Solution Approach 1:
The invention changes the geometric parameter of the base plate lower face from non-flat (conventional) to completely flat, ensuring that the entire lower face lies in a single plane. This parameter change improves adherence to the surface, reduces suction losses, and enhances cleaning efficiency without complicating the manufacturing process.
2Reliability
If the base plate is made completely flat to improve adherence, then suction efficiency increases, but the complexity of ensuring uniform plane across the entire surface increases
Solution Approach 1:
The invention specifies that the entire lower face of the base plate must lie in a single plane, transforming the geometric parameter from variable (non-flat) to constant (flat). This ensures reliable adherence across the entire contact surface, improving suction efficiency while maintaining manufacturability through standard flatness tolerances.
3Productivity
If velvet strips are used for enhanced cleaning on carpets, then cleaning performance improves, but they require precise parallel alignment which is difficult to maintain with conventional non-flat base plates
Solution Approach 1:
By making the lower face completely flat, the invention provides a stable reference plane that facilitates precise alignment and parallel mounting of velvet strips. This geometric change ensures that velvet strips maintain their optimal orientation during operation, enhancing cleaning efficiency on carpets and other surfaces.
Solution Approach 2:
The invention applies the flatness requirement specifically to the lower face of the base plate where velvet strips are mounted, ensuring that this local area has the necessary geometric precision for proper strip alignment, while other parts of the base plate can have different geometric characteristics.
Data Source
AI summary
A base plate for a suction head for vacuum cleaners or a similar electric household appliance is described, said base plate comprising a lower face configured as to be directed towards the surface to be vacuumed, an opposite upper surface and a base plate channel open towards the surface to be vacuumed, wherein the base plate channel comprises a front edge and a rear edge, wherein at least the surface of the lower face which extends along the front edge of the base plate channel and at least the surface of the lower face which extends along the rear edge of the base plate channel lie in a same plane.