Oven Door Airflow Structure for Natural Convection Cooling
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Solution Overview
Problem
Existing oven doors lack an efficient cooling mechanism, leading to potential heat transfer and discomfort during high-temperature cooking.
Innovation Solution
The oven door design incorporates air introducing and discharging openings, a door frame, inner cover, and glass holders to create airflow paths that utilize natural convection for cooling, dividing airflow into multiple paths between the door panel, inner cover, and glass holders to prevent heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling system is added to the oven door, then cooling efficiency is improved, but device complexity increases
Solution Approach 1:
The door is divided into multiple functional zones with separate air introducing openings, air discharging openings, and internal partitions creating distinct airflow channels. This segmentation allows independent optimization of cooling paths without requiring a complex integrated system
Solution Approach 2:
The cooling system utilizes natural convection currents where hot air rises and cold air sinks automatically, eliminating the need for external fans or powered cooling devices. The door structure itself serves the cooling function through its geometric design rather than requiring additional active components
2Loss of energy
If multiple airflow paths are created, then heat transfer prevention is improved, but manufacturing complexity increases
Solution Approach 1:
The door structure employs nested partitions and internal covers that create multiple airflow paths within the door thickness. These nested elements are integrated into the existing door framework, allowing complex multi-path cooling without requiring separate external assemblies for each airflow channel
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 design enhances the cooling efficiency of the oven door, creating an air curtain effect that reduces heat transfer and improves user comfort during cooking.
Implementation Method 1
Air introduced through the air introducing hole flows through the space between the door frame and the inner cover at both lateral sides of the glass holder
Implementation Method 2
This design enhances the cooling efficiency of the oven door, creating an air curtain effect that reduces heat transfer
Data Source
AI summary
An oven door is provided. The oven door includes a door panel having an air discharging opening part configured to discharge air flowing in the oven door, a door frame coupled to the door panel, the coupled door panel and door frame providing at least one air introducing hole in the bottom of the door to introduce air into the door, an inner cover located between the door panel and the door frame, the inner cover having an inner opening, the inner cover and the door frame defining a space to allow airflow, an inner glass located in the inner opening of the inner cover, and a glass holder supporting the inner glass. Air introduced through the air introducing hole flows through the space between the door frame and the inner cover at both lateral sides of the glass holder.