Textured Metal Core PCB Thermal Dissipation
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Solution Overview
Problem
Conventional metal core printed circuit boards (MCPCBs) for high-powered LED lighting and electronics face challenges in efficiently dissipating thermal energy, often requiring separate heatsinks to transfer heat effectively.
Innovation Solution
A textured MCPCB surface is designed to increase thermal dissipation by creating a larger surface area through machining and etching, allowing direct heat transfer to air or fluids without the need for a separate heatsink, using grooves, ridges, and micro-scale etching to enhance air turbulence and convection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a separate heatsink is used to dissipate thermal energy, then thermal dissipation efficiency is improved, but device complexity increases
Solution Approach 1:
The patent merges the heatsink function directly into the MCPCB by texturing the aluminum layer surface, eliminating the need for a separate heatsink component. The textured surface with grooves and ridges creates increased surface area and turbulence that enables the PCB itself to dissipate heat effectively, thus reducing device complexity while maintaining thermal dissipation efficiency.
Solution Approach 2:
The patent applies texturing at the micro-scale dimension to the aluminum layer surface, transforming a flat 2D surface into a complex 3D surface with grooves and ridges. This dimensional transformation dramatically increases the effective surface area for heat dissipation without adding separate components, thereby resolving the contradiction between thermal dissipation efficiency and device complexity.
2Temperature
If surface area is increased through texturing, then thermal dissipation is improved, but manufacturing complexity increases
Solution Approach 1:
The patent modifies the surface parameters of the aluminum layer by introducing grooves, ridges, and micro-texturing patterns. These parameter changes (surface geometry, roughness, turbulence induction) enhance heat dissipation capabilities while using standard manufacturing processes, thus balancing improved thermal performance with manufacturing feasibility.
3Temperature
If textured surface is used to increase surface area, then heat transfer efficiency is improved, but structural integrity may be compromised
Solution Approach 1:
The patent applies local quality by creating different surface characteristics (grooves, ridges, micro-textures) at specific locations on the aluminum layer. The texturing is concentrated in regions optimized for heat dissipation while maintaining overall structural integrity, and the aluminum layer thickness is sufficient to accommodate the texturing without compromising mechanical strength.
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 textured MCPCB effectively radiates and conducts thermal energy, reducing complexity and improving thermal dissipation efficiency by integrating heat transfer into the board itself, while maintaining structural integrity and mechanical robustness.
Implementation Method 1
The textured MCPCB surface can increase the surface area of the MCPCB surface in order to more effectively radiate or conduct thermal energy to the surroundings
Implementation Method 2
The MCPCB has a metal core (often aluminum or copper) instead of the traditional Fiberglass which makes it thermally conductive allowing the MCPCB to more efficiently remove heat from the components
Implementation Method 3
The textured MCPCB surface can machined to form grooves on the surface of the MCPCB in order to channel air and increase the surface area
Implementation Method 4
the textured MCPCB surface can also be etched to increase the surface area of the textured MCPCB surface on a microscopic scale and to induce turbulent air patterns which can more effectively transfer thermal energy away from the MCPCB
Data Source
AI summary
The present disclosure relates to a textured metal core printed circuit board (MCPCB) that has improved thermal dissipation characteristics to remove thermal energy generated by solid-state lighting devices including light-emitting diodes (LEDs) and other electronic components. The textured MCPCB surface can increase the surface area of the MCPCB surface in order to more effectively radiate or conduct thermal energy to the surroundings. In one embodiment, the textured surface of the MCPCB can be exposed to the air without the need for a separate heatsink component. The textured MCPCB surface can machined to form grooves on the surface of the MCPCB in order to channel air and increase the surface area. In an embodiment, the textured MCPCB surface can be etched to increase the surface area of the textured MCPCB surface on a microscopic scale and to induce turbulent air patterns which can improve the dissipation of thermal energy.