Brewing Unit Water Heater as Load-Bearing Frame Component
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Solution Overview
Problem
Brewing units for producing coffee from single-dose capsules or loose coffee powder face challenges in withstanding high mechanical stresses due to pressurized water, requiring cumbersome structures to resist pressure, which complicates the design and manufacturing process.
Innovation Solution
A brewing unit with a brewing chamber formed by two movable portions, where the water heater is independently connected to the side components, allowing for reduced manufacturing tolerances and improved sealing, enabling the water heater to support mechanical resistance against pressurized water, thus simplifying the structure and reducing material costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the water heater is integrated with the brewing chamber portions, then the structure can resist high mechanical stresses, but the manufacturing precision requirements increase and the structure becomes more complex
Solution Approach 1:
The brewing chamber is divided into two separate portions (first brewing chamber portion and second brewing chamber portion) that can move independently relative to each other. The water heater is positioned between these portions but is not rigidly integrated with either one, allowing each component to be manufactured separately with standard tolerances while still achieving the required mechanical strength through their coordinated arrangement.
Solution Approach 2:
The water heater acts as an intermediary element between the two brewing chamber portions. It provides thermal function while also serving as a structural component that helps resist mechanical stresses. The water heater's position and design allow it to mediate between the brewing chamber portions, enabling them to move independently while maintaining overall structural integrity.
2Stability of the object's composition
If the water heater is connected to side components through brewing chamber portions, then the structure is more rigid, but the sealing precision deteriorates and leakage occurs
Solution Approach 1:
The system is segmented into independently movable brewing chamber portions that connect to side components through separate pathways. The water heater is independently constrained from the side components, creating distinct functional zones. This segmentation allows each component to be optimized for its specific function without compromising overall sealing performance.
Solution Approach 2:
The brewing chamber portions are designed to move relative to each other and to the side components during operation. This dynamic design allows the structure to adapt to manufacturing tolerances and maintain proper sealing under varying operational conditions, rather than relying on rigid fixed connections that would require extremely tight tolerances.
3Reliability
If the brewing chamber portions are precisely dimensioned for tight clearance, then water-tight closure is achieved, but the device complexity increases
Solution Approach 1:
The brewing chamber is segmented into two portions that can move independently. This segmentation allows for simpler individual components with standard tolerances rather than one complex tightly-toleranced assembly. The independent movement capability compensates for clearance variations while maintaining water-tight closure when needed.
Solution Approach 2:
The brewing chamber portions utilize their own movement and positioning capabilities to achieve proper sealing. The system self-adjusts to maintain water-tight closure through the inherent dynamics of the movable portions rather than requiring complex external sealing mechanisms or extremely precise manufacturing.
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
The solution results in a more compact, economical, and efficient brewing unit that effectively withstands high pressures without the need for precise manufacturing of the brewing chamber components, ensuring a waterproof seal and preventing leakage during the brewing cycle.
Implementation Method 1
a water heater (315) arranged near to said brewing chamber and independently constrained from said side components (205)
Implementation Method 2
Hot water is made to flow through the capsule at an adequate pressure to extract the flavours from the ingredients contained in the capsule
Implementation Method 3
a brewing chamber formed by at least two portions mobile one with respect to the other
Data Source
Figure 1A~1B
Figure 2~3
Figure 4~5
AI summary
The brewing comprises: a brewing chamber with at least two brewing chamber portions (121, 123; 215B, 227; 321, 323) movable one with respect to the other; a water heater (115; 207; 315); and a structural frame supporting said at least two brewing chamber portions (121, 123; 215B, 227; 321, 323), on which forces generated by the pressurized water in the brewing chamber during brewing are discharged. The structural frame comprises two side components (111; 205; 311) arranged sideways of said brewing chamber, and two end components (113, 115; 221, 207; 313, 315) mechanically constrained to the side components (111; 205; 311). The side components and the end components form a closed structure, whereto the water heater is in turn constrained independently independently from the first brewing chamber portion and adjacent thereto. Forces generated by the pressurized water in the brewing chamber during brewing are discharged on the water heater (115; 207; 315).