Oven Burner Cover Airflow Layout for Stable Flame and Cleanability
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Solution Overview
Problem
Conventional cooking devices face issues such as contamination from food leftovers, difficulty in cleaning, reduced cavity capacity, and flame instability due to the open bottom surface and placement of the burner below the oven chamber, leading to pressure changes and potential backfiring or extinguishment of the flame.
Innovation Solution
A cooking device design featuring a frame with a burner assembly located at the rear, a burner cover with specific airflow holes, and a fan system to manage airflow and pressure, preventing foreign materials from entering the burner chamber and maintaining stable flame operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the burner chamber is provided below the oven chamber to convectively heat food, then heating efficiency is improved, but the bottom surface of the oven chamber becomes open causing contamination from food leftovers
Solution Approach 1:
A barrier member is introduced as an intermediary component between the oven chamber and burner chamber. This barrier member includes a through-hole that allows controlled airflow while blocking food leftovers from entering the burner chamber, thus resolving the contradiction between maintaining heating efficiency and preventing contamination.
2Use of energy by moving object
If the burner chamber is provided below the oven chamber, then convective heating is achieved, but the oven chamber becomes difficult to clean due to the open bottom surface
Solution Approach 1:
The barrier member serves as a mediator that maintains the convective heating structure while eliminating cleaning difficulties. By blocking the open bottom surface, it prevents food leftovers from accumulating in hard-to-reach areas, making the oven chamber much easier to clean without compromising the convective heating function.
3Use of energy by moving object
If the lower burner is installed below the oven chamber, then heating function is provided, but the cavity capacity of the oven chamber is reduced by burner insulation space
Solution Approach 1:
The barrier member is positioned to separate the oven chamber and burner chamber while minimizing space occupation. It allows the burner to be installed below the oven chamber for effective heating while preventing excessive insulation space from reducing the oven's cavity capacity, thus balancing heating function and storage volume.
4Ease of operation
If the oven door is opened and closed while mixed gas is being burned in the lower burner, then access is provided, but pressure changes cause backfiring or extinguishment of the flame
Solution Approach 1:
The barrier member with its through-hole acts as a pressure-regulating intermediary. It allows controlled pressure equalization between the oven chamber and burner chamber, preventing sudden pressure changes when the door is opened or closed, thus maintaining flame stability without compromising door access functionality.
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 design enhances cleanliness, prevents contamination, increases oven cavity capacity, and stabilizes the flame by managing airflow and pressure, reducing the risk of backfiring or extinguishment.
Implementation Method 1
a burner located within the burner cover to generate a flame
Implementation Method 2
the burner cover includes a first hole that provides a path through which air flows, and the frame is provided with a second hole in communication with the first hole, the second hole providing a path through which the air flows
Data Source
AI summary
A cooking device includes a frame forming a cooking chamber; a door opening and closing the cooking chamber; a burner cover disposed in the cooking chamber; and a burner located in the burner cover, the burner generating a flame, wherein the burner cover is provided with a first hole providing a path through which air flows, and the frame is provided with a second hole communicating with the first hole, the second hole providing a path through which the air flows.