A microwave oven
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Solution Overview
Problem
Microwave ovens face inefficiencies in cooling their electronic and heating components, leading to potential overheating and reduced operational reliability.
Innovation Solution
A microwave oven design featuring a fan assembly with two vent fans and separation members to direct airflow specifically for cooling electronic components and heaters, ensuring efficient cooling of both without airflow interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fan assembly is used to cool multiple components, then device complexity is reduced, but cooling efficiency deteriorates due to airflow interference
Solution Approach 1:
The single fan assembly is segmented into two separate fans (first fan and second fan), each dedicated to cooling specific components. The first fan cools the electronic component while the second fan cools the heater, eliminating airflow interference and improving cooling efficiency for each component individually.
2Device complexity
If airflow paths for different components are not separated, then device complexity is reduced, but temperature control deteriorates due to mixed airflow
Solution Approach 1:
The airflow paths are segmented into separate channels using a separation member. The first airflow path is dedicated to cooling the electronic component while the second airflow path is dedicated to cooling the heater, preventing mixed airflow and ensuring proper temperature control for each component.
Solution Approach 2:
A separation member is introduced as an intermediary element between the two airflow paths. This separation member physically divides the airflow generated by the two fans, directing each airflow to its designated component without interference, thus improving temperature control.
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 allows for effective cooling of microwave oven components, preventing overheating and enhancing operational reliability by efficiently separating and directing airflow to each component.
Implementation Method 1
the first fan providing an airflow adapted to cool the electronic component and the convection motor
Implementation Method 2
the second fan providing an airflow adapted to cool the heater
Implementation Method 3
a separation member separating an airflow provided by the first fan from the airflow provided by the second fan, and dividing the airflow provided by the first fan into the two airflows
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A microwave oven is provided. A barrier member prevents airflow provided by a fan assembly from being introduced again to the fan assembly. A separation member divides the airflow provided by the fan assembly to cool a first component and a second component. Thus, the components are efficiently cooled.