Oscillating Convection Fan Cover for Even Oven Airflow
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Solution Overview
Problem
Traditional convection fan covers in cooking appliances lack functionality and fail to enhance the performance of convection cooking systems, as they provide only static air flow and protection for the fan components.
Innovation Solution
An improved convection fan cover with oscillating shutters and an actuator system that dynamically controls airflow by periodically blocking and unblocking vents, allowing for a rotating airflow direction system that enhances cooking uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional simple fan cover is used, then the convection fan components are protected, but the functionality and cooking performance are limited due to static airflow
Solution Approach 1:
The fan cover is designed to perform multiple functions: it protects the convection fan components while simultaneously acting as an airflow control mechanism with oscillating shutters. This multi-functionality resolves the contradiction by making the fan cover adaptable for both protection and active airflow management, thereby enhancing cooking performance without requiring a completely separate complex airflow control system
Solution Approach 2:
The fan cover incorporates oscillating shutters that dynamically adjust airflow patterns rather than maintaining a fixed structure. This dynamic capability allows the simple fan cover to achieve enhanced functionality by periodically blocking and directing airflow, improving cooking uniformity while maintaining a relatively simple overall structure
2Manufacturing precision
If static airflow is used, then the structure is simple, but cooking uniformity is poor
Solution Approach 1:
The oscillating shutters perform periodic blocking and directing of airflow, creating alternating airflow patterns that improve cooking uniformity. This periodic action allows the system to achieve better cooking precision without requiring a continuously complex adjustable mechanism, as the oscillation provides sufficient variation in airflow distribution
Solution Approach 2:
The introduction of oscillating shutters transforms the static airflow system into a dynamic one, where airflow patterns change over time to improve cooking uniformity. This dynamic approach achieves better cooking precision without requiring complex real-time adjustment mechanisms, as the oscillation provides effective airflow variation
3Productivity
If the fan cover provides only protection, then the structure is simple, but the performance benefits of convection cooking are not maximized
Solution Approach 1:
The fan cover is designed to perform multiple functions: it protects the convection fan components while simultaneously acting as an airflow control mechanism with oscillating shutters. This multi-functionality resolves the contradiction by making the fan cover adaptable for both protection and active airflow management, thereby enhancing cooking performance without requiring a completely separate complex airflow control system
Solution Approach 2:
The protection function and airflow control function are merged into a single integrated fan cover assembly. The shutters are incorporated directly into the fan cover structure, combining what could have been separate components into one unified device, thus improving productivity without proportionally increasing 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
The improved fan cover ensures even cooking profiles by dynamically managing airflow, while maintaining protection for the convection heating system components, thus increasing the functionality and performance of the convection cooking system.
Implementation Method 1
a fan to blow heated air into the cooking cavity of an oven... The oscillation system uses an actuator to manipulate a series of shutters that periodically block air flow through openings in the fan cover
Data Source
AI summary
An improved convection fan cover is provided. In one or more implementations, the improved convection fan cover has a shutter system. As the convection heating system operates, the shutter system opens and closes (or blocks and unblocks) vents in the convection fan cover, creating an oscillation effect that alters the flow of air throughout an oven cavity, contributing to a more even cooking profile.