A motorized brewing unit

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Solution Overview

Problem

Existing motorized brewing units face design challenges in preventing residue from interfering with optical sensors during the brewing process, which complicates the design and functionality of the brewing chamber.

Innovation Solution

A motorized brewing unit with a dispensing assembly that includes a movable first assembly part and a stationary second assembly part, where an optical sensor is positioned between the open and closed positions to read the powdered product without facing the brewing chamber, allowing for digital image recognition and adjustment of brewing parameters, and an electric motor controls the movement between these positions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Difficulty of detecting and measuring

If the optical sensor faces the brewing chamber to monitor the brewing process, then the monitoring capability is improved, but residue from the brewing process interferes with the optical sensor's functioning

Engineering Contradiction:
Improveoptical sensor monitoring capabilityVSAvoidresidue interference with optical sensor
Core Design Contradiction:
Difficulty of detecting and measuringVSObject-affected harmful factors

Solution Approach 1:

Instead of positioning the optical sensor to face the brewing chamber (conventional approach), the patent inverts the approach by positioning the sensor to face the receptacle containing the powdered product. This allows the sensor to read the product characteristics before brewing without being exposed to brewing residues, thus resolving the contradiction between monitoring capability and residue interference.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If measures are provided to prevent residue from interfering with the optical sensor, then the optical sensor reliability is improved, but the brewing chamber design becomes more complex

Engineering Contradiction:
Improveoptical sensor reliabilityVSAvoidbrewing chamber design complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the optical sensor from the brewing chamber environment and positions it separately to face the receptacle. This removes the sensor from the harmful brewing residue environment without requiring additional protective measures within the brewing chamber, thus improving reliability while avoiding increased design complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

3Difficulty of detecting and measuring

If the optical sensor is positioned to face the brewing chamber, then the brewing process can be monitored, but the brewing chamber design requires additional protective measures

Engineering Contradiction:
Improvebrewing process monitoringVSAvoidbrewing chamber design
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The patent inverts the conventional approach by having the optical sensor read the powdered product in the receptacle before brewing, rather than monitoring the brewing chamber during brewing. This maintains monitoring capability (by reading product characteristics) while eliminating the need for protective measures in the brewing chamber design.

Inventive Principle:
Principle #13The other way round (Inversion)

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

This design simplifies the brewing unit's structure by eliminating the need for residue prevention measures, enhancing the brewing chamber's design and functionality, and enabling precise control of brewing parameters based on the powdered product's characteristics.

Implementation Method 1

an optical sensor which the receptacle faces in a detection position, intermediate between the open position and the closed position

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentEP4167807B1A motorized brewing unit
Publication Date: 2024.07.17 LUIGI LAVAZZA SPA
  • EP4167807B1 patent drawingFigure 1
  • EP4167807B1 patent drawingFigure 2~3
  • EP4167807B1 patent drawingFigure 4~5

AI summary

A motorized brewing unit (10) for preparing beverages from a powdered product (P), comprising a dispensing assembly which includes a first assembly part (12) having a receptacle (13) adapted to receive said powdered product, and a second assembly part (14), relative to which the first assembly part (12) is movable between an open position and a closed position, wherein the first assembly part (12) and the second assembly part (14) are coupled to each other to define a brewing chamber therebetween, an electric motor (16) adapted to control the movement of the first assembly part (12) between the open position and the closed position. The unit further comprises a readout device (40, 41) to provide a digital image of the powdered product. The readout device comprises an optical sensor (40) which the receptacle (13) faces in a detection position, intermediate between the open and the closed position.