Rear Burner Cover Layout for Cleaner Ovens and Stable Combustion
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Solution Overview
Problem
Conventional cooking appliances face challenges in cleaning the recessed areas where burners are typically located, leading to potential food residue accumulation and difficulty in maintaining the appliance's hygiene, as well as inefficient air circulation which can result in incomplete combustion and carbon dioxide buildup.
Innovation Solution
The design includes a burner assembly positioned at the rear wall of the cooking chamber, with a partition plate and fan system that allows for air circulation and prevents the flame from directly heating the fan, using a stabilizer to direct the flame away from the fan and enhance air flow, and separate inflow and discharge holes for improved air management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the burner is positioned in a recessed area within the cooking chamber, then the flame can be contained and heat can be concentrated, but the recessed area becomes difficult to clean and food residue accumulates
Solution Approach 1:
The burner cover is separated into a removable component that can be detached from the cooking chamber. This segmentation allows the burner assembly to be easily removed for cleaning, solving the problem of inaccessible recessed areas while maintaining the heat concentration function when assembled.
Solution Approach 2:
The burner assembly is extracted from the fixed recessed structure and made movable/removable. This allows the burner to be taken out for easy cleaning of the cooking chamber, while still providing heat concentration when in position during operation.
2Device complexity
If air circulation within the cooking chamber is insufficient, then the structure can be simpler, but incomplete combustion occurs and carbon dioxide builds up
Solution Approach 1:
A fan is introduced as an intermediary device to actively circulate air within the cooking chamber. This mediator ensures sufficient oxygen supply for complete combustion and prevents carbon dioxide buildup, while the fan can be integrated into the existing burner cover structure to minimize added complexity.
Solution Approach 2:
The burner cover is designed to serve multiple functions: it contains the flame for heat concentration, provides a surface for air intake, and houses the fan for air circulation. This multi-functionality reduces the need for separate components, maintaining structural simplicity while ensuring reliable combustion.
3Productivity
If the fan is positioned close to the burner for efficient air circulation, then air flow can be improved, but the flame may directly heat the fan causing premature failure
Solution Approach 1:
The fan is extracted from the direct flame path and positioned in a location where it can still circulate air effectively but is not exposed to direct flame heating. This separation protects the fan while maintaining air circulation efficiency.
Solution Approach 2:
The burner cover structure serves as an intermediary between the flame and the fan. It allows the fan to be positioned close to the burner for efficient air circulation while preventing direct flame contact, thus protecting the fan from thermal damage.
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 configuration simplifies cleaning, reduces the risk of food residue, enhances air circulation for better heating distribution, and minimizes incomplete combustion, resulting in more efficient cooking and reduced carbon dioxide levels.
Implementation Method 1
a fan to allow the air within cooking chamber to flow, the fan to discharge the air within the burner cover through the opening of the burner cover
Implementation Method 2
a burner disposed within the cooking chamber to generate flame for supplying heat to the cooking chamber
Data Source
AI summary
A cooking appliance includes a cavity to provide a cooking chamber, a burner disposed within the cooking chamber to generate flame for supplying heat to the cooking chamber, a burner cover on which the burner is installed, the burner cover having an opening through which air within the burner cover passes, a fan to allow the air within cooking chamber to flow, the fan to discharge the air within the burner cover through the opening of the burner cover, and a stabilizer including a barrier to abut the flame of the burner from reaching the fan when the air passes through the opening of the burner cover by operation of the fan.