Rear-Wall Burner Assembly for Uniform Oven Heat Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cooking appliances face challenges in efficiently distributing heat within the cooking chamber, leading to uneven cooking and difficulty in cleaning due to the placement of burners at the bottom, which results in hotspots and makes cleaning the recessed areas beneath the burners problematic.
Innovation Solution
The cooking appliance features a burner assembly positioned at the rear of the cooking chamber, with a partition plate and fan system that directs heated air into the cooking chamber, and a nozzle holder for gas and air mixing, enhancing heat distribution and preventing food residue from contaminating the burner area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the burner is positioned at the bottom of the cooking chamber, then the burner structure is simple and easy to install, but the heat distribution becomes uneven causing hotspots and cleaning becomes difficult
Solution Approach 1:
The burner assembly is repositioned from the bottom surface to the rear wall of the cooking chamber, changing the spatial dimension of burner placement. This dimensional shift allows heat to be distributed from the rear toward the front, eliminating hotspots while maintaining structural simplicity and facilitating easier cleaning access.
2Ease of manufacture
If the burner is positioned at the bottom of the cooking chamber, then the burner structure is simple, but food residue contaminates the burner area making cleaning problematic
Solution Approach 1:
The burner assembly is extracted from the bottom position where it is exposed to food residue, and relocated to the rear wall position. This extraction isolates the burner from contamination sources while preserving the simple burner structure design, and enables better cleaning accessibility to the previously contaminated bottom area.
3Temperature
If a partition plate and fan system are added to direct heated air, then heat distribution uniformity improves, but device complexity increases
Solution Approach 1:
The partition plate and fan system are merged with the burner assembly to form an integrated unit. The partition plate is positioned adjacent to the burner, and the fan is incorporated into the same housing structure, creating a compact assembly that achieves uniform heat distribution without proportionally increasing overall device complexity.
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 ensures more uniform heat distribution across the cooking chamber, reducing the risk of hotspots and simplifies cleaning by keeping the burner area free from food residue, thus improving cooking efficiency and maintenance.
Implementation Method 1
a fan disposed in the exhaust chamber
Implementation Method 2
a burner disposed in the combustion chamber
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A cooking appliance comprises a cavity (21) to provide a cooking chamber (22), a burner assembly (23) and a nozzle holder (220) disposed outside a rear wall of the cavity (21), the nozzle holder having a gas spraying hole (221a) to spray the gas into the burner (110), the burner (110) comprises a supply part (120) to receive gas and air, the supply part (120) passing through the rear wall of the cavity (21), wherein the supply part (120) comprises at least one first guide (121, 122) to align the supply part (120) with the gas spraying hole (221a), wherein the nozzle holder (220) comprises at least one second guide (224, 225) to guide the at least one first guide (121, 122) of the supply part (120), and wherein the nozzle holder (220) has an accommodation groove (223) in which the at least one first guide (121, 122) is accommodated, and the at least one first guide (121, 122) contacts the at least one second guide (224, 225) in the state where the at least one first guide (121, 122) is accommodated into the accommodation groove (223).