LED Lighting Device Heat Dissipation Body Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional LED light bulbs face significant heat dissipation issues when high wattage is required, leading to degradation of light output and inability to meet high luminance demands.
Innovation Solution
The LED light bulb incorporates a heat dissipation body with a base, heat dissipation wall, fins, and a partition board, along with a driver module and lighting module, featuring through holes and a ventilation system to facilitate convective heat dissipation and prevent humidity and insect ingress, allowing for effective heat management and waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high wattage LED light bulbs are used to achieve high luminance, then illumination intensity is improved, but heat dissipation becomes problematic leading to degradation of light output
Solution Approach 1:
The heat dissipation system is segmented into multiple functional components: heat dissipation fins for surface area expansion, heat dissipation channels for directed airflow, and multiple through holes for distributed air intake and exhaust. This segmentation allows efficient heat removal across different zones of the lighting device.
Solution Approach 2:
The invention transitions from two-dimensional heat dissipation (simple surface fins) to three-dimensional heat dissipation by creating vertical heat dissipation channels with through holes at different heights. This 3D structure enables multi-directional airflow and significantly increases the heat dissipation surface area within a compact volume.
2Ease of manufacture
If conventional LED light bulb structure is used, then manufacturing simplicity is maintained, but heat dissipation efficiency is insufficient for high wattage applications
Solution Approach 1:
The heat dissipation body serves multiple functions simultaneously: it provides structural support for the LED modules, acts as a heat sink through its fins and channels, guides convective airflow through integrated through holes, and protects internal components. This multi-functionality reduces the need for separate heat dissipation components while improving overall efficiency.
3Illumination intensity
If high wattage is used to meet high luminance demands, then illumination performance is improved, but light output degradation occurs due to excessive temperature
Solution Approach 1:
The heat dissipation channels and through holes act as intermediaries between the heat-generating LED components and the ambient environment. These structures facilitate the transfer of heat energy from the LEDs through controlled airflow paths, preventing temperature buildup that would otherwise cause light output degradation.
4Temperature
If open structure is used for heat dissipation, then heat removal is improved, but humidity and insects can enter the device
Solution Approach 1:
Different regions of the heat dissipation structure have different functional qualities: the heat dissipation fins and external surfaces have open structures optimized for heat exchange, while the driver module housing and internal electronic compartments have sealed or filtered openings to prevent humidity and insect ingress. This localized differentiation of structural quality allows simultaneous achievement of heat dissipation and protection.
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 enables the use of high wattage LED light bulbs without degrading light output or lifespan, ensuring efficient heat dissipation and increased module longevity while maintaining a waterproof and insect-proof environment.
Implementation Method 1
The heat dissipation body is in fluid communication with the ambient through the tube body of the lighting module, and the first through holes formed on the heat dissipation wall allow convective flow in the heat dissipation wall, such that the heat produced by the LED light sources can be quickly dissipated.
Data Source
AI summary
The present disclosure provides an LED lighting device comprising a heat dissipation body, a driver module and a lighting module. The heat dissipation body includes a base, a heat dissipation wall, heat dissipation fins and a top face. The heat dissipation wall defines a heat dissipation channel therein and is formed with first through holes. The heat dissipation fins are formed on and encircle the heat dissipation wall. The top face is formed with a first opening The driver module is disposed inside the heat dissipation body. The lighting module includes a tube body and LED light sources. The tube body has two end openings in fluid communication with each other and one of the end openings is connected to the first opening The LED light sources are arranged on the tube body and are electrically connected to the driver module.