Electric Range Air Guide Layout to Prevent Cooling Air Leakage
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Solution Overview
Problem
Existing electric ranges fail to effectively guide air output from a fan to concentrate cooling on objects, leading to inefficient cooling of heat sinks and increased manufacturing costs due to complex air guide designs.
Innovation Solution
An electric range with an air guide featuring a first member that prevents air from escaping and directs it slantly to a heat sink, encircling the driving circuit to enhance cooling efficiency and simplify manufacturing through single processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If air is discharged from the fan in a diffused manner under the plate, then the air flow covers a wider area, but the cooling efficiency is reduced because air cannot be delivered in a concentrated manner to the object to be cooled
Solution Approach 1:
The air guide is divided into multiple segments: the guiding portion that directs air flow, the blocking portion that prevents air escape, and the connecting portion that links to the heat sink. This segmentation allows the air flow to be concentrated on the target object while maintaining structural integrity and functionality.
Solution Approach 2:
The air guide acts as an intermediary component between the fan and the heat sink. It receives diffused air from the fan, concentrates and directs it toward the object to be cooled, and prevents escape through the blocking portion, thereby improving cooling efficiency without requiring changes to the fan itself.
2Loss of energy
If a complex air guide design is used to prevent air escape and improve cooling efficiency, then cooling performance is enhanced, but manufacturing costs increase
Solution Approach 1:
The air guide integrates multiple functions into a single component: air guiding, air blocking, and structural connection. By combining the guiding portion, blocking portion, and connecting portion into one unified air guide structure, the design achieves improved cooling efficiency while maintaining ease of manufacture through single-mold injection molding.
Solution Approach 2:
The air guide serves multiple purposes simultaneously: it guides air flow to the heat sink, blocks air escape through its blocking portion, and provides structural connection between components. This multi-functionality reduces the need for additional separate components, simplifying manufacturing while maintaining cooling performance.
3Loss of energy
If the air guide structure is made complex to prevent air from escaping and improve cooling efficiency, then cooling performance is enhanced, but the device complexity increases
Solution Approach 1:
Multiple functional elements (guiding structure, blocking elements, connecting portions) are merged into a single air guide component. This integration achieves the desired cooling efficiency improvement while avoiding the complexity of assembling multiple separate parts, as the entire structure can be manufactured in one piece through injection molding.
4Ease of manufacture
If traditional air guide designs are used, then manufacturing is simpler, but air leakage occurs and cooling efficiency is reduced
Solution Approach 1:
The air guide is segmented into functional portions (guiding, blocking, connecting) that are integrated into a single manufacturable structure. This segmentation enables each portion to perform its specific function effectively while maintaining manufacturing simplicity through single-mold injection molding, avoiding both air leakage and complex assembly processes.
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 solution prevents air leakage, improves cooling efficiency of heat sinks, reduces manufacturing costs, and allows for easy assembly and connection of the air guide.
Implementation Method 1
an air blowing fan configured to output air supplied through the first through hole
Implementation Method 2
a heat sink configured to cool the driving circuit
Data Source
Figure 1
Figure 2
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AI summary
The present disclosure relates to an electric range. The electric range includes an air guide provided with a first member for preventing air, output from an air blowing fan, from flowing into a space between a lower surface of a case and a driving circuit.