LED Lighting Module Feed Profile for Thermal Management
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Solution Overview
Problem
Existing light boxes with fluorescent tubes require high energy consumption and have issues with heat management and diode longevity, making them inefficient and costly to maintain, especially when using light-emitting diodes, which are prone to overheating and difficult to replace.
Innovation Solution
A lighting module with a feed profile featuring parallel holding legs and a carrier web with cooling ribs, allowing for efficient heat dissipation and easy diode replacement, using light-emitting diodes that introduce light into a light-diffusing panel in a cone-shaped manner, and employing multiple acrylic glass plates for uniform light distribution and reduced heat conduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light-emitting diodes are glued directly to the light-scattering plate with adhesive film, then energy consumption is reduced, but the diodes overheat and their service life is reduced
Solution Approach 1:
The patent separates the diode mounting structure from the light-scattering plate by introducing a dedicated feed profile with a carrier web. The diodes are mounted on the carrier web rather than directly on the light-scattering plate, creating thermal separation that prevents heat transfer to the acrylic glass while maintaining electrical and optical functionality.
Solution Approach 2:
The feed profile with carrier web acts as an intermediary structure between the diodes and the light-scattering plate. This intermediary provides both mechanical support for the diodes and thermal isolation, allowing the diodes to be mounted without direct contact with the heat-sensitive acrylic glass plate.
2Ease of manufacture
If light-emitting diodes are mounted with adhesive tape, then installation is simplified, but replacement of defective diodes requires replacing the entire light module
Solution Approach 1:
The patent divides the light module into separable components: the feed profile with carrier web and diodes can be independently removed from the light-scattering plate. This segmentation allows defective diodes to be replaced by simply removing and reattaching the feed profile, without damaging or replacing the expensive light-scattering plate.
Solution Approach 2:
The feed profile is designed with movable and removable features, including the carrier web that can be detached from the holding legs. This dynamic design enables easy access to the diodes for replacement while maintaining a stable installed configuration during operation.
3Illumination intensity
If fluorescent tubes are used as light sources, then light distribution is achieved, but energy consumption is high (100-200 watts per hour)
Solution Approach 1:
The patent replaces the fluorescent tube lighting system with LED technology. This substitution transitions from a gas-discharge lighting mechanism to solid-state LED emission, dramatically reducing energy consumption while maintaining or improving light distribution quality through the light-scattering plate.
4Reliability
If the entire light module is replaced when diodes fail, then reliability is maintained, but cost increases due to replacing the expensive light-diffusing plate
Solution Approach 1:
The patent creates a modular architecture where the feed profile with diodes is a separate, replaceable component from the light-scattering plate. This segmentation enables selective replacement of only the failed diodes or feed profile, preserving the valuable light-scattering plate and reducing material waste and replacement costs.
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
Significantly reduces energy consumption, extends diode lifespan, and allows for easy maintenance by minimizing heat transfer and enabling the replacement of individual diodes without replacing the entire light module, while maintaining effective light distribution and reducing the light cone effect.
Implementation Method 1
cooling ribs on which two mutually aligned support ribs are formed
Implementation Method 2
cooling ribs on the side remote from the printed circuit board
Implementation Method 3
a printed circuit board fitted with light-emitting diodes is attached
Implementation Method 4
light-emitting diodes which introduce light into a light-diffusing panel
Implementation Method 5
a light-scattering plate (3) stands on the carrier web (41)
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The luminous module has a light scattering plate (3) at whose one edge light is injected. The light scattering plate has an injecting profile (4) at its opposite edges. The injecting profile has two parallel retaining brackets (40) between which a support bar (41) runs, on which a printed circuit board (50) with a print is attached. The printed circuit board is equipped with light emitting diodes (8).