LED Light Module Open Frame Heat Sink Network
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Solution Overview
Problem
Current LED lighting designs face inefficiencies in heat dissipation due to bulky and heavy fixtures resulting from extended heat sink fins, which increase thermal resistance and lead to higher LED junction temperatures, making them difficult to handle and install.
Innovation Solution
The design incorporates an open frame network with heat sink fins on the outer and inner sides of modular light sections, allowing air to flow through and closely proximity to LEDs, reducing size and weight while maintaining effective heat dissipation through convection and radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If heat sink fins are extended further radially to increase heat dissipation surface area, then more heat can be dissipated, but thermal resistance increases and LED junction temperature rises
Solution Approach 1:
The patent transitions from traditional radial extension of heat sink fins to a vertical stacking arrangement where multiple heat sink fins are positioned above and below the LED module. This dimensional change allows heat dissipation surface area to increase without increasing radial distance from the LED heat source, thereby maintaining low thermal resistance while achieving effective heat dissipation.
2Illumination intensity
If multiple light fixtures are attached together to achieve high light output, then light output increases, but the fixtures become large, bulky and heavy
Solution Approach 1:
The patent implements a nested structure where multiple heat sink fins are stacked vertically above and below the LED module, with lower fins positioned within the space created by upper fins. This nesting approach allows multiple light modules to be integrated in a compact vertical arrangement, achieving high light output without requiring large radial space or resulting in bulky, heavy fixtures.
3Power
If heat sink fins are extended further radially to dissipate more power and heat, then heat dissipation capacity increases, but the distance from LED heat source increases resulting in higher thermal resistance
Solution Approach 1:
The patent resolves the contradiction between heat dissipation capacity and thermal resistance by moving from radial extension to vertical stacking. Multiple heat sink fins are arranged in the vertical dimension above and below the LED module, allowing increased heat dissipation capacity while maintaining minimal distance from the LED heat source, thus keeping thermal resistance low.
4Loss of energy
If traditional heat sink designs are used, then heat dissipation is achieved through convection around the outside, but the fixtures become large and heavy
Solution Approach 1:
The patent employs nested heat sink fins where lower fins are positioned within the space of upper fins, creating a compact vertical structure. This nested arrangement allows effective heat dissipation through convection while minimizing the overall footprint and weight of the fixture, eliminating the need for large, bulky traditional heat sink designs.
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 approach results in a smaller, lighter, and more efficient cooling system that maintains low LED operating temperatures, reducing installation costs and improving handling and scalability.
Implementation Method 1
heat is dissipated primarily by air flow through convection around the outside of the light fixture
Implementation Method 2
dissipate more power and heat generated by the LEDs
Implementation Method 3
a plurality of heat spreader fins on an inside of each one of the two or more lateral sides from the outer side to the inner side
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present disclosure is directed to a light emitting diode (LED) light module. In one embodiment, the LED light module includes a plurality of light sections and a plurality of open sections formed by a plurality of heat sink fins between the plurality of light sections, wherein each one of the plurality of light sections is adjacent to two different light sections of the plurality of light sections.