Electric Moka Coffee Machine With Temperature and Pressure Control
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Solution Overview
Problem
Moka-type coffee machines fail to provide precise control over infusion parameters like temperature and pressure, resulting in a low-quality coffee with altered organoleptic properties, and are limited in usage due to high temperatures and requirement for a fixed electrical outlet.
Innovation Solution
An electrically powered coffee preparation machine with a boiler, funnel-shaped filter, and electronic control system that allows precise control of temperature, pressure, and water delivery, using sensors and a microprocessor for real-time adjustments, along with wireless charging and flexible power options, enabling use on any surface and position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high temperature is used to heat water in the boiler, then water can flow through the filter to the collector, but the organoleptic properties of the coffee are significantly altered and burnt
Solution Approach 1:
The patent applies parameter changes by precisely controlling the heating element activation time and temperature to optimize the brewing process. The microprocessor controls the heating element to activate for specific durations, maintaining water temperature within an optimal range that extracts coffee flavors without burning the fat components and aromatic substances, thus resolving the contradiction between achieving sufficient heat for water flow and preventing degradation of coffee quality
Solution Approach 2:
The patent implements periodic action through the controlled activation and deactivation cycles of the heating element. The microprocessor manages periodic heating intervals, allowing the water temperature to rise to appropriate levels for extraction and then pause to prevent overheating. This cyclic control ensures water flows through the filter effectively while avoiding the continuous high temperature that would burn the coffee's aromatic compounds and fat content
2Manufacturing precision
If precise control of infusion parameters is implemented, then high quality coffee is produced, but device complexity increases
Solution Approach 1:
The patent employs feedback mechanisms through sensors that detect temperature, water level, and pressure parameters, feeding this information back to the microprocessor. The microprocessor continuously monitors these parameters and adjusts the heating element and valve operations accordingly, enabling precise control of the infusion process. This feedback loop allows the system to maintain optimal brewing conditions automatically, achieving high coffee quality while managing device complexity through intelligent control rather than overly complex mechanical systems
Solution Approach 2:
The patent replaces complex mechanical control systems with electronic and software-based solutions. Instead of using complex mechanical mechanisms to control heating and water flow, the invention uses a microprocessor with software algorithms to manage the brewing parameters. This substitution of mechanical systems with electronic control and software intelligence achieves precise parameter control while actually reducing overall device complexity compared to purely mechanical approaches
3Temperature
If high temperature is reached on the external surface of the boiler, then water heating is effective, but a heat-insulating support is required and usage is limited
Solution Approach 1:
The patent applies thermal insulation principles by incorporating insulating materials between the boiler and its external housing. This insulation layer acts as a thermal barrier, allowing the boiler internal temperature to reach high levels for effective water heating while keeping the external surface temperature at safe levels. This enables the machine to be placed on any surface without requiring special heat-insulating supports, significantly improving adaptability and versatility of usage positions
4Use of energy by moving object
If fixed electrical outlet is required, then power supply is stable, but machine cannot be used in any position
Solution Approach 1:
The patent implements universality by providing multiple power supply options: the machine can operate via connection to traditional electrical outlets for stable power supply, or alternatively use battery packs for portable operation without fixed outlet requirements. This multi-functionality in power supply allows the machine to adapt to different usage scenarios - stable AC power when available for optimal performance, or battery power when portability is needed, thus resolving the contradiction between power stability and usage flexibility
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 machine produces high-quality coffee by precisely controlling infusion parameters, ensuring optimal temperature and pressure, and allows for versatile usage without the need for a fixed electrical outlet, enhancing user flexibility and safety.
Implementation Method 1
an element 18 for electric heating of the liquid in the boiler 40, for example a resistive element 18 positioned in the boiler 40
Data Source
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AI summary
A machine (100) for preparing coffee is described which comprises: a boiler (40) for water in which a funnel-shaped filter (7) configured to contain the coffee is positioned, a collector (15) to collect the drink end that comes out from a collection duct (45), electrical power supply means (3), an element (18) for electric heating of the liquid in the boiler (40), a valve (44) interposed between funnel filter (7) and boiler (40), which can be closed again to allow a pre-set temperature and pressure to be reached inside the boiler (40), before being reopened to bring water and steam from the boiler (40) to the coffee contained in the funnel filter (7), air pumping means (20), an electronic system for controlling water and steam delivery from the boiler (40).