Oven Control Panel Air Passage for Heat Shielding
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Solution Overview
Problem
Conventional cooking appliances with gas ovens risk user injury due to high temperatures on the control panel, as hot air from the oven is transferred to the control panel, potentially increasing its temperature and posing a burn hazard during operation.
Innovation Solution
The cooking appliance incorporates an air passage in the control panel to direct hot air away from the user and includes a partition and bracket design to enhance airflow, allowing outside air to cool the control panel and reduce temperature through natural convection, thereby preventing excessive heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control panel is positioned close to the cavity for compact design, then the appliance structure is simplified, but the control panel temperature increases due to hot air transfer
Solution Approach 1:
The control panel is segmented into multiple functional layers including a front panel, a heat shield layer, and a cavity interface layer. This segmentation allows the heat shield to intercept hot air before it reaches the control electronics, reducing temperature while maintaining compact structure.
Solution Approach 2:
A heat shield acts as an intermediary element positioned between the hot cavity and the control panel. This intermediary component absorbs and redirects hot air flow away from the control electronics, preventing direct heat transfer while allowing the control panel to remain in its compact position.
2Ease of operation
If the control panel is positioned at the front upper position for accessibility, then user operation is improved, but the control panel is exposed to hot air discharged through the door
Solution Approach 1:
The harmful hot air flow is extracted and redirected away from the control panel through dedicated air passages and channels. The heat shield captures hot air discharged through the door and directs it along alternative paths that do not contact the control panel, protecting it while maintaining front upper positioning for ease of operation.
Solution Approach 2:
The hot air flow, which would normally be harmful to the control panel, is converted into a beneficial cooling mechanism for the cavity interior. The heat shield redirects hot air to circulate within the cavity space, where it can be utilized for cooking purposes, while preventing contact with the control panel.
3Device complexity
If natural convection is used for cooling without additional components, then device complexity is reduced, but cooling efficiency may be insufficient for high temperature environments
Solution Approach 1:
The cooling system utilizes dynamic air flow paths that adapt to different operating conditions. Air passages are designed to naturally channel hot air away from the control panel during high-temperature operation, while maintaining proper ventilation during lower temperature operation. This dynamic approach provides reliable temperature control without requiring active cooling components.
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 effectively reduces the temperature of the control panel, ensuring user safety by minimizing heat transfer and maintaining the control panel at a safe temperature during cooking operations.
Implementation Method 1
an air passage that receives air discharged from the cavity through the door and that introduces received air into an interior of the control panel
Implementation Method 2
hot air from the oven is transferred to the control panel, potentially increasing its temperature
Data Source
AI summary
A cooking appliance may include a case that defines a cavity for cooking, a top plate that is disposed above the cavity and that is configured to define an external appearance of a top side of the cooking appliance, a control panel that is disposed at a front upper position of the cavity and that is configured to define an external appearance of a front side of the cooking appliance, the control panel having a knob for user operation, and a door that is disposed below the control panel and that is configured to define, along with the control panel, the external appearance of the front side of the cooking appliance, the door being configured to open or close the cavity.