Net Receptacle Insert for Convection Ovens With Fewer Carbon Specs

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Solution Overview

Problem

Convection ovens using fast-moving hot air for food preparation experience the formation of carbon particles, known as carbon specs, which adhere to food and foul the oven and preparation basket, leading to uneven cooking and increased cleaning frequency.

Innovation Solution

A convection oven with a rotatable, air-permeable preparation basket and a non-stiff receptacle featuring a net structure with through holes and a non-stick surface to minimize carbon spec adherence, allowing circulating air to pass through and reducing their deposition on food.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a solid preparation basket is used to hold food during convection cooking, then the food is supported and contained, but carbon specs accumulate on the food and basket surface requiring frequent cleaning

Engineering Contradiction:
Improvecarbon spec deposition on foodVSAvoidcleaning time
Core Design Contradiction:
Object-affected harmful factorsVSLoss of time

Solution Approach 1:

The preparation basket is constructed with a net structure containing numerous through-holes that allow circulating air to pass through freely. This porous configuration prevents carbon specs from accumulating on the basket surface while maintaining the basket's ability to support and contain the food during convection cooking

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

A receptacle with a non-stick coating is introduced as an intermediary between the food and the preparation basket. This receptacle prevents carbon specs from transferring to the food while allowing air circulation through the net structure, and facilitates easy removal of any adhered specs during cleaning

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the preparation basket is made solid to contain food, then food containment is improved, but air circulation is blocked reducing cooking efficiency

Engineering Contradiction:
Improvefood containmentVSAvoidcooking efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The preparation basket employs a net structure with numerous through-holes that provide adequate food containment while allowing fast-moving hot air to circulate freely through the basket, maintaining cooking efficiency without sacrificing food support capability

Inventive Principle:
Principle #31Porous materials

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

Significantly reduces carbon spec deposition on food, enhancing cooking quality and simplifying cleaning by allowing air to circulate freely and facilitating the removal of adhered specs from the receptacle.

Implementation Method 1

a fan arranged to circulate hot air within said oven compartment

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

convection oven is an oven that imparts heat onto the food to be cooked by use of fast moving hot air

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

the receptacle comprising a non-stiff receptacle wall at least partly formed by a net structure with through holes... allowing air to circulate freely through the preparation basket and around the food

Methodology Applied
Scientific EffectAir circulation: Convection

Data Source

PatentEP2887847B1oven
Publication Date: 2019.03.13 GF PRODS
  • EP2887847B1 patent drawingFigure 1
  • EP2887847B1 patent drawingFigure 2
  • EP2887847B1 patent drawingFigure 3

AI summary

The present invention relates to an oven (10) for preparation of food (40). The oven comprises: an oven compartment (15);an air permeable preparation basket (22) arranged in said oven compartment (15);a heat source (18); and a fan (19) arranged to circulate hot air within said oven compartment. The invention is characterized in that the oven (10) further comprises a receptacle (30; 300) formed to fit in said preparation basket (22) and to receive said food (40), said receptacle comprising a receptacle wall(31; 301)at least partly formed by a net structure (35) with through holes. The invention furthermore relates to a receptacle for use in an oven.