Modular Milk Foaming Unit for Hot-Cold Foam Hygiene
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Solution Overview
Problem
Existing devices for producing milk froth are either complex, require separate systems for hot and cold froth, or compromise on milk freshness and hygiene due to heating elements and line systems that promote germ formation.
Innovation Solution
A compact device with a modular design that integrates a thick-film heating element and air enrichment system, allowing for selective production of hot and cold milk foam within a cooling device, minimizing heat impact and reducing germ formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heating element and line system are used to produce warm or hot milk froth, then the desired temperature is achieved, but germ formation increases and milk freshness deteriorates
Solution Approach 1:
The patent extracts the heating element from the main cooling system, creating a separate modular heating unit that can be independently controlled and removed. This allows the heating function to be separated from the cooling storage system, minimizing germ formation in the main milk storage while still enabling hot froth production when needed.
Solution Approach 2:
The system dynamically switches between cooling and heating modes based on demand. The modular heating unit can be activated only when hot froth is required, while the main system remains in cooling mode to preserve milk freshness. This dynamic operation reduces the overall time that heating elements are active, thereby reducing germ formation.
2Adaptability or versatility
If separate systems are used for hot and cold milk froth production, then both functions are available, but device complexity increases
Solution Approach 1:
The patent merges the hot and cold froth production capabilities into a single integrated device. The modular heating unit can be attached to the cooling system to provide hot froth, while the same system naturally provides cold froth when the heating unit is not active. This combining approach eliminates the need for completely separate hot and cold systems.
Solution Approach 2:
The modular heating unit serves multiple functions: it can be attached to the cooling system for hot froth production, removed when cold froth is needed, and potentially used in different configurations. This multi-functional design allows one component to replace what would traditionally require separate dedicated systems.
3Volume of moving object
If a compact device is designed to produce both hot and cold foam, then space is saved, but heat management becomes more difficult
Solution Approach 1:
The patent segments the device into distinct modular components: a main cooling system and a separate attachable heating unit. This segmentation allows each module to be optimized for its specific function (cooling or heating) while maintaining a compact overall size. The heating element is positioned in a way that minimizes heat loss to the surrounding cooling system.
Solution Approach 2:
The patent introduces thermal insulation as an intermediary between the heating element and the cooling system. This intermediary layer prevents heat from the heating element from being lost to the cooling system, improving heat management efficiency while maintaining the compact integrated design.
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
Enables efficient, space-saving production of both hot and cold milk foam while maintaining milk freshness and hygiene, with reduced cleaning frequency and minimal heat generation, thus addressing the complexity and germ formation issues of prior devices.
Implementation Method 1
an electrical heating resistor being applied to a carrier on which a flow path is provided for the liquid
Implementation Method 2
an air enrichment element, by means of which the liquid can be permeated with air
Data Source
Figure 1~2
AI summary
Device (10) for foaming liquid, comprising a line system and a pump (18) via which at least a first line (16) of the line system can be connected to at least one storage container (12, 14) in which the liquid to be foamed is stored , and can be connected via a second line (22) of the line system to at least one outlet nozzle (24), an air enrichment element (26), by means of which air can pass through the liquid, and a heating element (32) designed as a continuous-flow heater, which is based on thick-film technology is constructed.