Exhaust Path Fin Layout to Preserve Airflow and Heat Dissipation
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Solution Overview
Problem
Existing mobile information devices face challenges in improving the air volume sent from a fan due to air collision with fins, limiting the amount of air blown from the fan.
Innovation Solution
The electronic device incorporates a housing with an exhaust path and fins arranged such that plate surfaces intersect, guiding air along an intersecting direction, and includes a heat pipe connected to the fin to enhance air flow and heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If fins are arranged at an inclination angle to guide air flow, then heat dissipation efficiency is improved, but air volume sent from the fan is reduced due to air collision with fins
Solution Approach 1:
The patent changes the traditional arrangement of fins from an inclined configuration (in the air flow direction) to a planar configuration where multiple plate members are arranged side-by-side perpendicular to the air flow direction. This dimensional change allows air to flow through the gaps between plate members without collision, maintaining air volume while still providing heat dissipation surface area.
Solution Approach 2:
The fin is divided into multiple plate members (first plate member, second plate member, etc.) arranged in parallel. This segmentation creates multiple flow paths for air to pass through, reducing air resistance and collision while maintaining the overall heat dissipation function. The air flow passage is segmented into multiple sub-passages between the plate members.
2Temperature
If traditional fin arrangement is used, then heat dissipation is achieved, but space utilization inside housing is inefficient
Solution Approach 1:
The patent utilizes the width direction of the housing by arranging plate members side-by-side in the width direction, perpendicular to the air flow direction. This allows effective use of previously underutilized space within the housing, maximizing heat dissipation surface area without increasing the footprint or compromising air flow paths.
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 enhances air volume and maintains heat dissipation efficiency while optimizing space usage within the device.
Implementation Method 1
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
Implementation Method 2
a fin arranged in the exhaust path and having a plurality of plate members... guiding the air sent from the blower along an air blowing direction intersecting an exhaust surface
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.