Modular LED Lighting Device with Stable Coupling and Heat Dissipation
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Solution Overview
Problem
Conventional LED lighting devices are limited by their installation structure, leading to instability and reduced optical efficiency, and require frequent maintenance due to short lifespan and heat management issues.
Innovation Solution
The LED lighting device features a modular design with a lower and upper case, a light guide plate, and a reflective sheet, along with a heat radiation sheet, allowing for stable assembly, enhanced heat dissipation, and improved optical efficiency through a coating film with varying roughness and a louver for light direction adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a conventional LED lighting device uses a fixed installation structure, then the structural stability is improved, but the adaptability to different installation environments deteriorates
Solution Approach 1:
The lighting device is divided into an upper case and a lower case that can be separately assembled and disassembled. The upper case contains the light guide plate and optical elements, while the lower case contains the light source unit. This segmentation allows the device to be installed in different configurations and locations while maintaining structural stability through standardized coupling interfaces.
Solution Approach 2:
The coupling between the upper case and lower case is designed to be attachable and removable, providing dynamic reconfigurability. This allows the lighting device to be easily installed, removed, and reinstalled in different positions or orientations without requiring complex fixed installation structures, thereby improving adaptability while maintaining stability during operation.
2Illumination intensity
If the light guide plate is positioned close to the light source unit, then optical efficiency is improved, but heat radiation performance deteriorates
Solution Approach 1:
The patent introduces a vertical dimension for heat management by designing the lower case with heat radiating fins that extend perpendicular to the light source unit. This allows heat to be dissipated in the vertical direction away from the light guide plate, maintaining close proximity for optical efficiency while effectively managing heat through a different spatial dimension.
Solution Approach 2:
A reflective sheet is positioned between the light guide plate and the light source unit to redirect light that would otherwise be absorbed by the heat-generating components. This intermediary element improves optical efficiency by reflecting light back toward the light guide plate while allowing heat to be managed separately through the heat radiating structure of the lower case.
3Ease of operation
If the LED lighting device uses a modular design with attachable and removable cases, then ease of assembly and disassembly is improved, but structural stability deteriorates
Solution Approach 1:
The upper case is designed to nest within or couple to the lower case through standardized interfaces, creating a stable integrated structure when assembled. The coupling structure includes positioning features and securing mechanisms that ensure firm connection, providing structural stability while maintaining the ability to easily assemble and disassemble the modular components.
Solution Approach 2:
The coupling interface between the upper and lower cases is designed with localized strengthening features such as ribs, fins, or reinforced edges at the connection points. This provides enhanced structural stability at the critical joining areas while keeping the overall modular design simple and easy to assemble, addressing stability needs only where required.
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 design provides a stable, easily assembled LED lighting device with improved heat radiation and optical efficiency, reducing manufacturing costs and eliminating installation structure limitations.
Implementation Method 1
a light guide plate disposed in parallel with the light source unit
Implementation Method 2
a coating film having a roughness and disposed on the light guide plate
Implementation Method 3
a reflective sheet disposed between the light guide plate and the upper case
Implementation Method 4
improves heat radiating characteristic
Implementation Method 5
improves heat radiating characteristic
Implementation Method 6
a louver which adjusts a light direction may be inserted and set in the guide recess
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Disclosed is an LED lighting device which is easily assembled and disassembled and has a stable assemblability without structural shaking. The LED lighting device is able to improve a heat radiating characteristic and optical efficiency. The LED lighting device according to the embodiment includes a first case; a light source unit disposed on one side of the first case; a light guide plate disposed in parallel with the light source unit; and an second case disposed on the light guide plate and coupled to the first case in an attachable and removable way.