System for preparing and/or heating a food product

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Solution Overview

Problem

Existing food preparation and heating systems, such as ovens and rotisserie ovens, require efficient cleaning methods that can handle multiple detergent compositions and ensure complete release of cleaning agents without residue, while minimizing energy consumption and environmental impact.

Innovation Solution

A self-cleaning system with a detergent holder made of bent wire, featuring a multi-component cartridge with temperature-sensitive seals for controlled release of cleaning compositions, allowing for two or more cleaning steps with incompatible agents, and an inclined position for time-delayed emptying, facilitated by spray jets for thorough rinsing and exothermic reaction enhancement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple detergent compositions are used for cleaning, then cleaning performance is improved, but device complexity increases

Engineering Contradiction:
Improvecleaning performanceVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detergent holder is divided into multiple compartments (first compartment, second compartment, third compartment) that can be independently filled with different detergent compositions. Each compartment has its own outlet and can be controlled separately, allowing multiple cleaning agents to be stored and dispensed without mixing until the cleaning cycle begins.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The detergent holder is nested within the cavity framework or accessing door structure, integrating the multi-compartment storage system into the existing oven architecture. This nested arrangement allows complex functionality to be incorporated without proportionally increasing external dimensions or visual complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Productivity

If detergent is released early, then cleaning action starts sooner, but incomplete release and residue remain

Engineering Contradiction:
Improvecleaning speedVSAvoidcomplete release
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system uses temperature-sensitive dissolving tanks where the detergent release is controlled by temperature parameters. The dissolving tanks are designed to dissolve at specific temperature thresholds, ensuring that detergent is released only when the cavity temperature reaches the appropriate level for complete dissolution and release, preventing premature release while maintaining cleaning speed.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The control system monitors cavity temperature and provides feedback to regulate the heating element and detergent release timing. This feedback mechanism ensures that detergent is released at the optimal moment when temperature conditions guarantee complete dissolution, preventing both premature and delayed release.

Inventive Principle:
Principle #23Feedback

3Reliability

If heating is used to release detergent, then complete release is achieved, but energy consumption increases

Engineering Contradiction:
Improvecomplete releaseVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The detergent is pre-dissolved in the dissolving tanks during the heating phase before the main cleaning cycle begins. This preliminary dissolution action ensures that when the detergent is released, it is already in a ready-to-use state, reducing the need for additional heating energy during the cleaning process itself.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses the existing heating function required for food preparation to simultaneously drive the detergent dissolution process. The cavity heating serves dual purposes: preparing the food and dissolving the detergent in the dissolving tanks, eliminating the need for separate heating energy input specifically for detergent release.

Inventive Principle:
Principle #25Self-service

4Stability of the object's composition

If detergent holder is fixed, then stability is improved, but accessibility for refilling deteriorates

Engineering Contradiction:
ImprovestabilityVSAvoidaccessibility
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The detergent holder is designed with a removable structure that can be easily detached from the cavity framework or accessing door. The holder features quick-release mechanisms or simple connection points that allow users to remove the entire holder or individual compartments for refilling, then reattach them securely to maintain stability during operation.

Inventive Principle:
Principle #15Dynamics

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 system enables efficient, energy-saving cleaning with complete release of cleaning agents, preventing residue and hazardous waste, allowing for easy disposal and improved cleaning performance through sequential and delayed release of cleaning compositions.

Implementation Method 1

the upper seal of the first chamber melts when being sprayed on by spraying jets having a temperature T1 between 45°C and 49°C, thus releasing a first cleaning composition into the cavity

Methodology Applied
Scientific EffectMelting: Melting

Implementation Method 2

the upper seal of the first chamber melts when being sprayed on by spraying jets having a temperature T1 between 45°C and 49°C

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

improved cleaning performance through sequential and delayed release of cleaning compositions

Methodology Applied
Scientific EffectExothermic reaction: Exothermic Reaction

Data Source

PatentEP4224066A1System for preparing and/or heating a food product
Publication Date: 2023.08.09 I CLEAN TECH
  • EP4224066A1 patent drawingFigure 1~2
  • EP4224066A1 patent drawingFigure 3
  • EP4224066A1 patent drawingFigure 4

AI summary

The present invention is related to a system for preparing and heating a food product within a cavity (8), said system comprising a self-cleaning device with a spraying device (10) for spraying a cleaning fluid into the cavity (8), in which a detergent holder (24) is placed. The detergent holder (24) is arranged on a framework or an accessing door (18) of the cavity (8), a multi-component cartridge (32) being received in the detergent holder (24), the detergent holder (24) being held in an inclined position at an angle (60) towards a center of the cavity (8), the multi-component cartridge (32) being sprayed on by spray jets (58) emerging from the spraying device (10) in a continuous or discontinuous manner.