Heat-Dissipation Flow-Guiding Devices for Electronic Device Cooling
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Solution Overview
Problem
Existing heat-dissipation devices for electronic devices suffer from uneven airflow distribution, leading to inefficient heat dissipation due to higher airflow velocity in the central position compared to the sides, which affects overall cooling efficiency without increasing airflow resistance.
Innovation Solution
The implementation of a heat-dissipation device with strategically placed flow-guiding devices, including first, second, and third heat-dissipation flow-guiding devices, arranged in a specific configuration within the airflow channel to evenly distribute airflow across elongated heat-dissipation fins, ensuring consistent airflow velocity and improved heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat-dissipation fins are arranged in an airflow channel with a fan, then heat dissipation function is achieved, but airflow distribution becomes uneven with higher velocity in central position
Solution Approach 1:
The patent introduces flow-guiding devices with different structures at different positions (central vs. side positions) to create locally adapted airflow control. The central flow-guiding device has a different longitudinal distance from the airflow source compared to side devices, allowing localized adjustment of airflow velocity to achieve overall uniform distribution.
2Temperature
If flow-guiding devices are added to evenly distribute airflow, then heat dissipation efficiency improves, but device structure becomes more complex
Solution Approach 1:
The flow-guiding devices are segmented into multiple units positioned at different locations (central and side positions) with different structural characteristics. This segmentation allows independent optimization of each device to control airflow at specific zones, achieving overall uniform distribution without requiring complete redesign of the entire system.
3Speed
If flow-guiding devices are positioned closer to airflow source in central position, then central airflow is controlled, but distance varies across different positions
Solution Approach 1:
The patent deliberately creates asymmetric positioning of flow-guiding devices relative to the airflow source. The central flow-guiding device is positioned at a different longitudinal distance from the airflow source compared to side devices, breaking the symmetry to compensate for the natural tendency of airflow to concentrate in the central region and achieve uniform velocity distribution.
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 ensures more even airflow distribution, enhancing heat dissipation efficiency by dispersing airflow from the central position to the sides, resulting in higher average airflow velocity and improved cooling performance without increasing resistance.
Implementation Method 1
An airflow from the fan flows along the airflow channel and flows over the surfaces of the heat-dissipation fins to remove heat from the surfaces of the heat-dissipation fins
Data Source
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AI summary
An electronic device and a heat-dissipation device for an electronic device are provided. The heat-dissipation device comprises an airflow channel; an airflow source located in the airflow channel; a plurality of elongated heat-dissipation fins arranged in the airflow channel; and a plurality of heat-dissipation flow-guiding devices arranged in the airflow channel and between the airflow source and the plurality of elongated heat-dissipation fins, wherein the plurality of heat-dissipation flow-guiding devices include a first heat-dissipation flow-guiding device in a central position of the airflow channel and a second heat-dissipation flow-guiding device on two sides of the airflow channel, and a longitudinal distance between the first heat-dissipation flow-guiding device and the airflow source is less than the distance between the second heat-dissipation flow-guiding device and the airflow source.