Segmented Exhaust Fin Layout for Higher Airflow Cooling
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Solution Overview
Problem
Existing mobile information devices face limitations in improving air volume blown by fans due to the inclination of fins, which restricts the effective exhaust of hot air.
Innovation Solution
An electronic device design featuring a housing with an exhaust port, a blower, an exhaust portion with a guiding path, and a fin with plate members arranged along the air blowing direction to enhance air flow and reduce air volume reduction, along with a heat pipe connected to the fin for efficient heat transfer and space optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fins are arranged with inclination to guide air flow, then heat dissipation efficiency is improved, but air volume of the blower is reduced
Solution Approach 1:
The fin is divided into multiple plate members (first plate member, second plate member, third plate member) arranged in sequence along the air blowing direction. Each plate member has a specific inclination angle relative to the exhaust surface, creating segmented air guiding paths that progressively direct air flow while maintaining volume.
Solution Approach 2:
Different plate members have different inclination angles (first inclination angle, second inclination angle, third inclination angle) optimized for their specific positions in the air flow path. This local optimization allows each segment to contribute differently to heat dissipation while collectively preserving air volume.
2Quantity of substance
If plate members are arranged along the air blowing direction, then air volume is improved, but heat transfer efficiency may be reduced
Solution Approach 1:
The plate members are arranged not only along the air blowing direction but also extend in the width direction of the exhaust port. This multi-dimensional arrangement increases the effective heat exchange surface area while maintaining unobstructed air flow path, thus preserving air volume while enhancing heat transfer.
Solution Approach 2:
The inclination angles of the plate members are specifically designed to dynamically guide air flow through the exhaust path. The first plate member has a first inclination angle, the second has a second inclination angle, and the third has a third inclination angle, creating a dynamic air guiding effect that maintains flow velocity and volume throughout the exhaust path.
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 air volume sent from the blower while maintaining effective heat dissipation and space efficiency by guiding air flow intersecting the exhaust surface and utilizing the heat pipe for efficient heat transfer.
Implementation Method 1
a heat pipe extending along an arrangement direction of the plurality of plate members
Implementation Method 2
the fin connected to the heat pipe
Implementation Method 3
a blower that is arranged inside the housing and sends air from an inside of the housing to an outside of the housing via the exhaust port
Data Source
AI summary
An electronic device includes: a housing having an exhaust surface including an exhaust port; a blower that is arranged inside the housing and sends air from an inside of the housing to an outside of the housing via the exhaust port; an exhaust portion arranged inside the housing and having an exhaust path for guiding the air sent from the blower toward the exhaust port along an air blowing direction intersecting the exhaust surface; and a fin arranged in the exhaust path and having a plurality of plate members. Each of the plurality of plate members is arranged along the air blowing direction.