Fan Frame Heat Dissipation via Segmented Flow Zones
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Solution Overview
Problem
Heat dissipation fans in electronic devices experience poor performance due to irregular airflow patterns through the fan frame, leading to inefficient heat removal and potential noise issues.
Innovation Solution
A fan frame design featuring a hollow frame body with obliquely positioned stationary blades that divide the flow channel into zones, creating high and low-pressure areas to guide airflow and enhance heat dissipation, while also incorporating slots to direct air flow and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional fan frame is used, then the structure is simple, but the airflow becomes irregular resulting in poor heat dissipation performance
Solution Approach 1:
The fan frame is divided into multiple functional zones using partition walls and flow guiding structures. The flow channel is segmented into a first flow channel and a second flow channel, with each having dedicated flow guiding structures. This segmentation organizes the airflow into distinct regions, preventing irregular mixing and improving heat dissipation efficiency while maintaining a manageable structural complexity.
Solution Approach 2:
Different regions of the fan frame are given different structural characteristics to optimize local airflow behavior. The first and second flow guiding structures have different configurations tailored to their respective flow channels. The partition wall is positioned strategically to create specific flow patterns in different zones, ensuring each region contributes optimally to overall heat dissipation.
2Ease of operation
If the flow channel is divided into zones with partition walls, then airflow regulation is improved, but the device complexity increases
Solution Approach 1:
The partition wall and flow guiding structures are integrated into a unified design where the flow guiding structures are formed as extensions or attachments to the partition wall. This merging reduces the number of separate components, simplifies assembly, and maintains effective airflow regulation 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 design improves heat dissipation efficiency and reduces noise by regulating airflow, effectively addressing the irregular airflow issues and enhancing the overall performance of heat dissipation fans.
Implementation Method 1
The stationary blades 20 divide the flow channel 11 into a plurality of flow zones A. Each flow zone A includes a first zone B and a second zone C... creating high and low-pressure areas to guide airflow
Implementation Method 2
the heat dissipation fan drives cool air in the ambient environment to replace hot air around the electronic components
Data Source
AI summary
A fan frame with an improved heat dissipation performance includes a frame body, a plurality of stationary blades, and a central base. The frame body defines a flow channel, the central base is arranged within the flow channel and divides the flow channel into flowing zones. Each of the flowing zone includes a high-pressure zone and a low-pressure zone. The central base defines first slot, second slot and receiving groove between the first slot and the second slot, the first slot communicates the high-pressure zone and the receiving groove, the second slot communicates the low-pressure zone and the receiving groove.