Motorized Capsule Brewing Unit With Power-Based Closure Detection
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Solution Overview
Problem
Existing beverage preparation machines require significant user intervention for handling ingredient capsules, leading to potential injuries and malfunctions, and lack advanced functionalities like semi-automatic or automatic brewing, rinsing, and descaling.
Innovation Solution
A motorized beverage machine with a brewing unit and a capsule system that uses a sliding friction relationship between the capsule sidewall and receptacle to control the closure mechanism, monitoring power consumption to ensure safe and efficient operation, and allowing for semi-automatic or automatic brewing, rinsing, and descaling modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual handling of capsules is used, then device complexity is reduced, but user safety deteriorates due to potential injuries from squeezing forces
Solution Approach 1:
The patent replaces manual mechanical handling with an automated motorized system. A motor drives a movable assembly that automatically opens and closes the brewing unit, eliminating the need for users to manually apply force and thereby preventing squeezing injuries while maintaining structural simplicity through automated control.
Solution Approach 2:
The brewing unit is designed to automatically perform the closure and opening operations without user intervention. The motorized movable assembly self-actuates to secure the capsule and initiate brewing, making the system serve itself and eliminating harmful manual forces.
2Object-affected harmful factors
If motorized closure is implemented, then user safety is improved, but device complexity increases due to additional motor and control components
Solution Approach 1:
The motorized movable assembly performs multiple functions: it opens the brewing unit for capsule insertion, closes it to secure the capsule, and can be used for ejection. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in device complexity while maintaining safety benefits.
Solution Approach 2:
The patent combines the opening, closing, and ejection operations into a single motorized movable assembly. By merging these functions into one integrated mechanism, the system achieves enhanced safety without proportionally increasing complexity, as one motorized unit replaces what would otherwise require multiple separate mechanisms.
3Device complexity
If basic manual operation is used, then device complexity is minimized, but functionality deteriorates due to lack of semi-automatic or automatic brewing modes
Solution Approach 1:
The system is designed with dynamic control capabilities that allow it to adapt between different brewing modes (manual, semi-automatic, automatic) based on user input. The motorized assembly can be controlled in different ways depending on the selected mode, providing versatility without requiring fundamentally different hardware structures.
Solution Approach 2:
The patent enables different brewing modes by changing operational parameters such as timing, force application, and sequence of operations rather than requiring different physical structures. The same motorized assembly can operate with different control parameters to achieve manual, semi-automatic, or automatic brewing, maintaining structural simplicity while enhancing functionality.
4Productivity
If precise power monitoring is implemented, then brewing control is improved, but measurement precision requirements increase the complexity of control systems
Solution Approach 1:
The system uses feedback from power consumption measurements to control the brewing process. By monitoring the electrical power drawn by the motor during closure, the system can determine when the brewing unit is properly closed and when to initiate water flow, achieving precise brewing control through a relatively simple electrical measurement approach.
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 reduces user intervention, enhances safety by preventing injuries, and provides added functionalities such as automatic brewing, rinsing, and descaling, optimizing the beverage preparation process.
Implementation Method 1
capsule sidewall and mouth of the capsule receptacle are urged together and contact each other in a sliding friction relationship over a fraction of the capsule sidewall so as to create a capsule-generated resistance against the closure of the assemblies
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A system is formed of an ingredient capsule (30) and a motorized beverage machine (1) that has a brewing unit (2). The unit comprises a first assembly (13) and a second assembly (14) cooperating together, each assembly (13, 14) delimiting part of a brewing chamber (29) for containing the capsule. At least one of these assemblies (14) is movable: away from the cooperating assembly (13) into an open position within such machine for forming between said assemblies a passage (31) for inserting into and/or removing from the brewing unit the ingredient capsule (30); and to the cooperating assembly into a closed position for forming the brewing chamber (29). The machine comprises activation means including: a motor (3) for driving the movable assembly between the open and closed positions and transmission means for transmitting the drive action of the motor to the movable assembly; water supply means for supplying heated water to brewing chamber; control means (10) for controlling the drive action of the motor comprising means for measuring at least one parameter (40, 40', 40a, 41, 41', 41a) representative of the motor power consumption and for comparing the evolution of said measured parameter over time during the transfer of the assembly from the open to the closed position to a set reference (42, 42') and means for providing an input to at least one of the activation means as a result of the compared evolution of the measured parameter to the set reference.