Foaming component
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Solution Overview
Problem
Existing liquid dispensers face challenges in maintaining hygiene and producing stable foams with suspended particles, particularly in designs that are not easily adaptable for use as replaceable disposable inserts, leading to contamination risks and complex manufacturing processes.
Innovation Solution
A foaming component with a sparging interface arranged between opposing surfaces, allowing air to enter from both sides, combined with a pumping mechanism that transfers liquid and air to create a foamed mixture, which is compact enough for use in a replaceable disposable insert, and features multiple zones for enhanced foam quality and turbulence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed pump and foaming mechanism are employed in liquid dispensers, then foaming capability is achieved, but the device size increases and adaptability for disposable inserts is reduced
Solution Approach 1:
The foaming mechanism is segmented into modular components that can be integrated into disposable inserts. The sparging component with sparging interface is designed as a separate module that can be combined with liquid and air chambers in a compact arrangement, enabling the mechanism to be miniaturized for disposable use while maintaining foaming functionality.
Solution Approach 2:
The sparging component is nested within the liquid chamber assembly, with the sparging interface positioned between opposing surfaces of the liquid chamber. This nested arrangement allows the foaming mechanism to be compactly integrated into the disposable insert structure, reducing overall device size while preserving foaming capability.
2Reliability
If complex foaming mechanisms are used, then foam quality is improved, but manufacturing complexity increases
Solution Approach 1:
The sparging interface is designed with localized quality features, including specific pore size distributions and surface characteristics in critical areas to optimize bubble formation and foam quality. The opposing surfaces of the liquid chamber have differentiated sparging regions that create controlled turbulence and bubble shear without requiring complex overall mechanism design, simplifying manufacturing while maintaining foam quality.
3Reliability
If sparging interface is designed for high foam quality, then bubble shear and turbulence are enhanced, but spatial dimensions increase
Solution Approach 1:
The sparging interface utilizes the third dimension by positioning opposing surfaces facing each other vertically or radially, creating turbulent flow paths through the liquid column. This vertical/dimensional sparging approach generates enhanced bubble shear and foam quality within a compact horizontal footprint, reducing the overall spatial dimensions of the foaming mechanism while maintaining high foam quality.
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 design achieves high-quality, stable foams with reduced spatial requirements, mitigating contamination risks and simplifying manufacturing, while providing a luxurious tactile experience and efficient use of liquid soap.
Implementation Method 1
transfer air from the air chamber, through the sparging interface, and to the foaming region, whereupon the forcing of air through the sparging interface causes bubbles to form in liquid in the foaming region forming a foamed mixture
Implementation Method 2
a pumping mechanism, the pumping mechanism being arranged to: transfer liquid from the liquid chamber to the foaming region; transfer air from the air chamber
Implementation Method 3
multiple zones for enhanced foam quality and turbulence
Data Source
Figure 1a
Figure 1b
Figure 2a~2c
AI summary
A foaming component for use in a foaming liquid dispenser, and an insert arranged so that it may be inserted into a liquid dispenser comprising the foaming component. The foaming component comprises a liquid chamber; an air chamber; a sparging component, which comprises a sparging interface and a foaming region; an exit aperture; and a pumping mechanism. The pumping mechanism is arranged such that it can transfer liquid from the liquid chamber directly to the foaming region, and air from the air chamber to the foaming region, via the sparging interface. The forcing of air through the sparging interface causes bubbles to form in the liquid located in the foaming region, resulting in a foamed mixture for dispensing. The pumping mechanism is then used to transfer the foamed mixture from the sparging component through the exit aperture, wherein the sparging interface is arranged such that at least a portion of the foaming region is positioned in between opposing surfaces of the sparging interface.