Drink preparation machine for preparing a drink
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Solution Overview
Problem
Beverage preparation machines using single-serving capsules face limitations in user-friendliness and security, particularly in ensuring easy and reproducible preparation of desired beverages with minimal user manipulation.
Innovation Solution
A beverage preparation machine with a manually movable closing unit and a capsule recognition module that automatically performs capsule detection after the closing element assumes a closed position, using optical or other readable features to identify capsule properties and adjust brewing parameters, while providing intuitive operation and haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a manual closing unit is used to close the capsule insertion opening, then the device structure is simple, but the automation level is low and user manipulation is required
Solution Approach 1:
The closing unit is designed to automatically trigger the capsule recognition process when it transitions to the closed position, eliminating the need for separate user activation. The system serves itself by using the closing action as the trigger signal, reducing automation requirements while maintaining simplicity.
Solution Approach 2:
The closing unit performs the triggering action preliminarily - by simply closing to detect the capsule's presence and properties before the actual brewing process begins. This preliminary detection phase allows the system to prepare brewing parameters in advance based on capsule recognition.
2Measurement precision
If the closing element completely closes the capsule insertion opening, then light interference is prevented for optical detection, but the opening is less accessible for capsule insertion
Solution Approach 1:
The closing element is designed with differentiated functionality - when closed, it provides complete light blocking for optimal optical detection, but during insertion, the system accepts capsules at angles or positions that maintain accessibility. The local optical properties are optimized for detection while mechanical accessibility is maintained for insertion.
Solution Approach 2:
Instead of making the opening permanently accessible and risking light interference, the system inverts the approach by ensuring complete closure for detection and relying on the insertion process occurring before closure. The temporal inversion separates the accessibility requirement (during insertion) from the light-blocking requirement (during detection).
3Productivity
If automatic capsule recognition is implemented, then brewing parameters can be optimized, but the device complexity increases with additional sensors and processing
Solution Approach 1:
The closing unit serves multiple functions: it mechanically closes the opening, triggers the recognition process, and provides the structural framework for sensor placement. By making the closing unit multi-functional, the patent reduces the need for separate dedicated components, thereby limiting complexity increase while maintaining productivity benefits.
Solution Approach 2:
The patent replaces complex mechanical capsule identification systems with optical or electromagnetic sensors that can detect capsule properties without physical contact. This substitution reduces mechanical complexity while enabling optimized brewing parameters based on capsule recognition.
4Reliability
If the closing element is manually operated, then the structure is simple, but the reproducibility of brewing conditions is reduced
Solution Approach 1:
The closing unit incorporates feedback mechanisms that detect when proper closure is achieved and confirm capsule recognition. This feedback loop ensures that brewing conditions are consistently reproduced by verifying that the capsule is correctly positioned and identified before initiating the brewing process, while still requiring minimal user input.
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
Enhances user-friendliness by minimizing manipulations required for beverage preparation, ensures high reproducibility, and improves safety by automatically triggering capsule recognition and brewing processes, allowing for easy selection of brewing programs based on capsule properties.
Implementation Method 1
The detection is based on a reflective element attached to the capsule and a light sensor and is achieved by the fact that the reflective element and light sensor move relative to each other during detection
Data Source
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AI summary
The invention relates to a beverage-making machine (10) for making a beverage from a portion capsule by introducing an extraction liquid into the portion capsule, having a housing (17), a capsule insertion opening (11), a closing unit (1), and a closing element (14). The housing (17) has the capsule insertion opening (11), through which the portion capsule can be inserted into the capsule detection module (5), and the closing element (14) is part of the closing unit (1). The closing element can be manually moved between an open position, in which the capsule insertion opening (11) is accessible, and a closed position, in which the closing element (14) closes the capsule insertion opening (11). The beverage-making machine (10) is characterized by a capsule detection module (5) which is designed to detect a capsule, which is introduced through the capsule insertion opening and which is located at a capsule detection position, using defined features. The beverage-making machine (10) is designed to automatically trigger the capsule detection process after the closing element (14) has assumed the closed position.