Beverage capsule and method
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Solution Overview
Problem
Existing beverage capsules face challenges in controlling beverage flow rates, ensuring optimal brewing conditions, and preventing cross-contamination, particularly when preparing different types of beverages like coffee, tea, and broth, while also dealing with recycling issues due to mixed materials like aluminum and plastics.
Innovation Solution
A capsule design featuring an outlet wall with a closing member that is integral to the wall and can be broken to open, allowing for controlled beverage dispensing, using a plunger to detach the closing member and regulate flow rates by adjusting the shape and dimensions of the outlet portion and plunger, and incorporating a conveyor cap for mechanical opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional outlet wall design is used, then the capsule structure is simple, but the beverage flow rate cannot be controlled and brewing conditions are not optimal
Solution Approach 1:
The outlet wall is segmented into multiple functional portions: a first outlet portion for beverage flow, a second outlet portion for plunger engagement, and a breaking portion that connects them. This segmentation allows independent optimization of each portion's function, enabling controlled beverage dispensing while maintaining structural integrity.
Solution Approach 2:
The breaking portion acts as an intermediary element that connects the first and second outlet portions. It is designed to break under controlled conditions, allowing the plunger to engage the second outlet portion and control the first outlet portion's beverage flow, thus mediating between structural support and flow control functions.
2Reliability
If the outlet wall is made robust for reliable opening, then cross-contamination prevention is improved, but flow rate control capability deteriorates
Solution Approach 1:
The outlet wall is divided into distinct functional zones: the second outlet portion maintains structural robustness for reliable opening and cross-contamination prevention, while the first outlet portion is designed with flow control features. The breaking portion connects these zones and transitions from a robust state to a controlled state upon breaking.
Solution Approach 2:
The outlet wall transitions from a static robust structure to a dynamic controlled system through the breaking portion. Before breaking, the wall maintains structural integrity for reliable opening; after breaking, the first outlet portion becomes dynamically controllable by the plunger, enabling flow rate adjustment while maintaining reliability.
3Manufacturing precision
If a plunger mechanism is added for flow control, then beverage dispensing precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The plunger mechanism is merged with the outlet wall structure itself. The second outlet portion is an integral part of the outlet wall that the plunger engages, eliminating the need for separate complex flow control components. This integration achieves precise flow control while minimizing device complexity and manufacturing cost.
Solution Approach 2:
The outlet wall structure provides its own flow control functionality through the interaction between the first and second outlet portions. The breaking portion's controlled failure and the plunger's engagement with the second outlet portion create a self-regulating system that achieves precise dispensing without requiring external complex control mechanisms.
Data Source
AI summary
A capsule has an outlet wall (4) that comprises an opening (5) and a closing member (6) for the opening; the closing member is integral with the outlet wall of the capsule and extends from the inner side of the outlet wall, inside the capsule.