Grilling oven

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Solution Overview

Problem

Existing grilling ovens pose health risks due to carcinogenic substances produced when meat fat drips onto the heat source, contaminating the grilled meat and creating hazardous fumes, and they are inefficient in terms of energy usage and safety for chefs.

Innovation Solution

A grilling oven design featuring an electrical heating device at the top, a grilling grid in the middle, and a fat-catching plate at the bottom, with a fume exhauster to remove harmful fumes and a heat insulation layer to improve efficiency and safety, along with adjustable grilling grid mechanisms for optimal meat cooking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If meat is grilled using traditional heat sources (charcoal, gas, or electrical heating elements), then the grilling process can be completed, but fat from the meat drips onto the heat source and produces carcinogenic fumes that contaminate the grilled meat and harm the kitchen environment

Engineering Contradiction:

Improvecarcinogenic substance contaminationVSAvoidenergy efficiency

Core Design Contradiction:

Object-affected harmful factorsVSLoss of energy

Solution Approach 1:

The patent inverts the traditional grilling configuration by placing the heat source at the top instead of the bottom, so that fat drips away from the heat source onto a collection plate below rather than onto the heat source itself. This inversion eliminates the production of carcinogenic fumes while maintaining effective grilling.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent extracts the fat collection function from the traditional grilling setup by introducing a separate fat collection plate positioned below the grilling grid. This allows fat to be collected and removed from the system without contacting the heat source, preventing carcinogenic substance formation.

Inventive Principle:

Principle #2Taking out (Extraction)

2Power

If traditional grilling ovens are used, then grilling can be performed, but the power consumption is high (60 to 80 kilowatt)

Engineering Contradiction:

Improvepower consumptionVSAvoidkitchen air quality

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a fume extraction system as an intermediary between the grilling chamber and the kitchen environment. This system captures and removes carcinogenic fumes at their source, protecting the kitchen air quality while allowing continuous grilling operation without harmful emissions.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If heat is applied directly from below in traditional grilling ovens, then meat can be grilled, but fat drips onto the heat source and creates harmful fumes

Engineering Contradiction:

Improvegrilling efficiencyVSAvoidfume generation

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

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

Prevents carcinogenic substance production on grilled meat, enhances grilling safety and environmental sustainability by containing fat and fumes, and provides stable and efficient heating, making the grilling process healthier and more environmentally friendly.

Implementation Method 1

an electrical heating device, a grilling grid and a fat catching plate are provided in the grilling chamber; the electrical heating device is located at the top of the grilling chamber

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 2

a heat insulation layer is provided inside the oven body. By means of the heat insulation layer, heat inside the grilling chamber is prevented from escaping and thus the heating efficiency of the grilling oven is improved. Meanwhile chefs will be protected from getting burned when using the grilling oven

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 3

the grilling oven further comprises a fume exhauster; the fume exhauster is placed on the oven body; at least one gas passage is arranged inside the heat insulation layer; one end of the gas passage is communicated with the grilling chamber, the other end of the gas passage is communicated with the fume exhauster. Fumes produced during grilling process are sucked away from the grilling chamber by the fume exhauster

Methodology Applied

Scientific EffectSuction: Suction

Data Source

PatentUS10512361B2Grilling oven

Publication Date: 2019.12.24 UNIVERSAL ELECTRICAL MACHINE WORKS (HUIZHOU) CO LTD

AI summary

The present invention discloses a grilling oven comprising an oven body and a grilling chamber encircled by the oven body; an electrical heating device, a grilling grid and a fat catching plate are provided in the grilling chamber; the electrical heating device is located at the top of the grilling chamber; the fat catching plate is located at the bottom of the grilling chamber; the grilling grid is located between the electrical heating device and the fat catching plate; the grilling grid and the fat catching plate both are horizontally placed. During a grilling process, the fat of grilled meat is prevented from dripping downwards onto a heat source of the grilling oven, so that no cancerogenic substance is produced thereby or condensed on the grilled meat, thus making the grilling process more environmental and healthy, and the grilled meat safe to eat.