Dashed Crosshatched Fin Heat Sink for Omnidirectional Airflow
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Solution Overview
Problem
Traditional heat sinks with small surface areas and curved pin designs limit airflow and heat dissipation efficiency, particularly in omnidirectional configurations where air can flow from any direction.
Innovation Solution
A heat sink design featuring a base with fins arranged in a dashed crosshatched pattern, where first fins are at a 45° angle and second fins are at a -45° angle relative to a reference line, forming separate air channels that allow airflow from any direction while maximizing surface area for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If traditional pin or post designs with small surface areas are used, then air channels are provided for airflow, but heat dissipation efficiency is reduced due to limited surface area and curvature effects
Solution Approach 1:
The heat dissipation structure is segmented into multiple planar fins arranged in a dashed crosshatched pattern, where each fin acts as an independent heat transfer surface. This segmentation increases the total surface area compared to traditional pin designs while maintaining effective air channel pathways between the fins for heat dissipation.
2Area of moving object
If fins with large surface areas are used, then heat dissipation surface is increased, but air channel space is reduced limiting airflow
Solution Approach 1:
The fins are arranged in a two-dimensional dashed crosshatched pattern with specific angular orientations (45° and -45°), transforming the traditional three-dimensional pin structure into a planar array. This dimensional change allows the fins to maximize surface area in the plane while maintaining open channels in the third dimension for airflow.
3Ease of manufacture
If traditional pin designs with curvature are used, then manufacturing is simplified, but heat dissipation rates are reduced along leaner airflow directions
Solution Approach 1:
Instead of using curved pin surfaces that naturally reduce heat dissipation in certain directions, the invention inverts the approach by using flat planar fins with straight edges. This inversion creates optimal surfaces for heat transfer across all airflow directions, particularly improving performance in leaner airflow directions while remaining manufacturable through standard fin fabrication 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 design enhances heat dissipation by allowing unobstructed airflow from any direction and increases the surface area for heat transfer, improving the efficiency of heat dissipation compared to traditional pin or post designs.
Implementation Method 1
a heat sink that includes a base having a reference line and a plurality of fins extending from the base
Implementation Method 2
air flowing through pins (e.g., posts with a circular or oval cross section) or fins (flat rectangular cuboids) of the heat sinks is used to dissipate heat
Data Source
AI summary
Various implementations described herein relate to a heat sink having a base and a plurality of fins extending from the base. Each of the plurality of fins is spaced apart from other ones of the plurality of fins. The plurality of fins includes first fins and second fins. Each of the first fins is perpendicular to any of the second fins.