Cooking appliance
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Solution Overview
Problem
Existing cooking appliances require additional components like burner reflectors and stabilizers to manage heat and airflow, increasing complexity, manufacturing costs, and reducing the available space for the cooking chamber.
Innovation Solution
The cooking appliance integrates the heating device and circulation device in a way that the heating device is arranged outside the cooking chamber, allowing for natural draft to rise heated air to the cooking chamber, eliminating the need for separate stabilizers and reflectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate burner reflector and stabilizer are provided to protect the wall surface and stabilize the flame, then the reliability of the heating device is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The burner reflector and stabilizer are merged into a single integrated component that performs both functions simultaneously. The reflector portion directs heat toward the cooking chamber while the stabilizer portion prevents flame instability, eliminating the need for separate components and reducing overall device complexity.
Solution Approach 2:
The integrated component serves multiple functions: it acts as both a burner reflector to protect the rear wall and a stabilizer to maintain flame stability. This multi-functional design reduces the total number of parts required while maintaining the reliability benefits of both original components.
2Reliability
If a separate burner reflector and stabilizer are provided, then the reliability of the heating device is improved, but the manufacturing cost increases
Solution Approach 1:
The burner reflector and stabilizer are combined into a single molded component, reducing the number of manufacturing steps, assembly operations, and inventory items. This integration lowers manufacturing costs while maintaining the protective and stabilizing functions.
Solution Approach 2:
A single component performs both reflection and stabilization functions, reducing material costs, assembly costs, and maintenance costs compared to using two separate components. The multi-functional design provides cost efficiency without sacrificing reliability.
3Stability of the object's composition
If additional components such as burner reflector and stabilizer are provided, then the flame stability is improved, but the volume of the cooking chamber is reduced
Solution Approach 1:
The reflector and stabilizer are merged into one compact component located at the rear of the cooking chamber. This integration minimizes the space required for flame stabilization components while maintaining flame stability, thereby maximizing the available cooking chamber volume.
Solution Approach 2:
The integrated component is designed to utilize the rear wall space efficiently, positioning the stabilizer and reflector functions in a compact arrangement that minimizes intrusion into the cooking chamber volume while maintaining effective flame stabilization.
4Stability of the object's composition
If the convection fan velocity is reduced or operated intermittently for flame stability, then the flame stability is improved, but the productivity and cooking efficiency are reduced
Solution Approach 1:
The stabilizer portion of the integrated component passively stabilizes the flame through its structural design, eliminating the need to reduce convection fan velocity or operate it intermittently. This allows the fan to run continuously at optimal speed for cooking efficiency while the stabilizer maintains flame stability independently.
Solution Approach 2:
The stabilizer component acts as an intermediary structure between the burner and the convection airflow, modifying the airflow pattern to prevent flame instability without requiring reduction in fan velocity. This enables simultaneous achievement of flame stability and high cooking productivity.
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 reduces the number of components, lowers manufacturing costs, increases design simplicity, and maximizes the space available for the cooking chamber while maintaining efficient heat distribution.
Implementation Method 1
allowing for natural draft to rise heated air to the cooking chamber
Implementation Method 2
A convection fan may be provided behind the burner to transfer air heated by the burner evenly to the cooking chamber
Data Source
AI summary
A cooking appliance may include a frame in which a cooking chamber is formed, and a circulation device arranged in the frame. The circulation device may include a circulation chamber, the circulation chamber connecting with the cooking chamber. A heating device may be arranged outside of the frame to supply heated air to the circulation chamber. The heating device may be arranged at a lower portion of the circulation device, and may include a burner case having a combustion chamber therein, the combustion chamber being connected to the circulation chamber. The heating device may include a burner that heats air introduced into the combustion chamber.