Infusion Capsule Structure for Pressure-Resistant Beverage Extraction
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Solution Overview
Problem
Existing capsules made of plastic material for infused beverages deform under high pressures, leading to incorrect extraction and disposal issues, and are not effectively replaced by paper or thermoformed materials due to fragility.
Innovation Solution
A capsule design with radial grooves and ribs for coupling with the infusion assembly, combined with a disc-shaped filtering member for uniform water distribution and pressure resistance, preventing damage during infusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If capsules are made of plastic material, then they can withstand high pressures during infusion, but they deform under pressure leading to incorrect extraction and disposal issues
Solution Approach 1:
The capsule is divided into multiple structural components: a cup-shaped body, a disc-shaped filtering member with holes, and coupling means with radial grooves and ribs. This segmentation allows each component to perform its specific function - the body contains the aromatic substance, the filtering member distributes water uniformly, and the coupling means provides structural support to prevent deformation under pressure.
Solution Approach 2:
The capsule employs a composite structure combining different materials and components. The cup-shaped body can be made of paper or thermoformed material, while the disc-shaped filtering member and coupling means provide additional structural integrity. This composite approach allows the capsule to maintain strength and resist deformation under high infusion pressures while enabling proper extraction.
2Ease of manufacture
If capsules are made of paper material or thermoformed material, then disposal and manufacturing issues are improved, but they are fragile and cannot withstand the pressure of infused liquid
Solution Approach 1:
The capsule structure is segmented into a cup-shaped body made of environmentally friendly material (paper or thermoformed) and a separate disc-shaped filtering member with coupling means. The filtering member acts as a reinforcing element that provides the necessary structural strength to withstand infusion pressure, while the cup-shaped body maintains the environmentally friendly material benefits for easy disposal and manufacturing.
Solution Approach 2:
Different parts of the capsule have different structural qualities tailored to their specific functions. The cup-shaped body uses environmentally friendly material optimized for containment and disposal, while the disc-shaped filtering member and coupling means incorporate structural features (ribs, grooves) that provide localized strength and pressure resistance where needed.
3Productivity
If a disc-shaped filtering member is inserted into the capsule, then water distribution and ingredient pressing are improved, but the member can be torn or broken during infusion without support
Solution Approach 1:
The disc-shaped filtering member is merged with the coupling means to form an integrated component. The coupling means with its radial grooves and ribs are combined with the filtering member structure, creating a unified element that performs both functions: distributing water uniformly through the filtering holes and providing structural support to prevent tearing or breaking during infusion.
Solution Approach 2:
The coupling means with radial grooves and ribs are designed in advance to provide structural support to the disc-shaped filtering member before infusion begins. This pre-reinforcement prevents the filtering member from being torn or broken during the high-pressure infusion process, ensuring its durability and reliable performance.
4Strength
If coupling means are added to the capsule, then structural stiffness and secure interaction with infusion assembly are improved, but device complexity increases
Solution Approach 1:
The coupling means with radial grooves and ribs serve multiple functions simultaneously: they provide structural stiffness to prevent capsule deformation, enable secure interaction and coupling with the infusion assembly through complementary geometric features, and integrate with the disc-shaped filtering member. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
Data Source
AI summary
System for making an infused beverage, includes: at least one infusion assembly of a machine for preparing infused beverages; at least one capsule containing an aromatic substance for the preparation of an infused beverage through interaction with a liquid; the capsule including: a cup-shaped body with a recess having a depth for containing a predetermined amount of an aromatic substance; the body including at least one side wall and a bottom, and running around a vertical axis; the first infusion assembly including: a first infusing member, including a recess for accommodating at least partially the capsule; a second infusing member for cooperating with the first infusing member so as to at least partially close the recess to define an accommodating seat with the first infusing member; the capsule including first coupling elements; the infusion assembly including second coupling elements structured to removably engage the first coupling elements.