Modular Heat Dissipation Structure for LED Lighting
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Solution Overview
Problem
Existing LED lighting devices face issues with heat dissipation, particularly in high-bay lights, where the shared heat sink between the power supply and light source leads to inefficient heat dissipation and safety hazards due to the weight-bearing screws, causing the heat sink to detach and potentially fall.
Innovation Solution
A modular heat dissipation structure with a split design where the power box and heat sink are connected using overlapping portions with bosses and heat insulation gaps, reducing heat transfer and improving safety by distributing weight more effectively and allowing for adjustable height and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power box is fixed on the heat sink by locking screws from the upper side, then the power supply and light source can be separated to dissipate heat, but the connection screw needs to bear a lot of weight and may cause safety hazards when the screw thread is damaged
Solution Approach 1:
The connection structure is divided into multiple segments: the heat sink body, the first overlap portion with first bosses, the second overlap portion with second bosses, and heat insulation gaskets. This segmentation distributes the weight-bearing function across multiple contact points and structural elements rather than relying on a single screw connection, thereby improving safety and reducing the load on individual fastening components.
Solution Approach 2:
The first overlap portion of the heat sink is nested within the second overlap portion of the power box, creating an interlocking structure. The first bosses and second bosses are positioned to abut against each other, forming a nested arrangement that provides mechanical interlocking and distributes mechanical loads across the overlapping surfaces, reducing the stress on any single connection point.
2Device complexity
If the power box and heat sink are in direct contact, then the structure is simple, but a large amount of heat is transferred from the heat sink to the power box, shortening the service life of the power supply
Solution Approach 1:
Heat insulation gaskets are introduced as intermediary elements between the first bosses of the heat sink and the second bosses of the power box. These gaskets act as thermal barriers that prevent direct thermal contact while maintaining the mechanical connection and weight-bearing capability of the overlapping structure, thereby reducing heat transfer to the power supply without complicating the overall structure.
3Device complexity
If the power supply and light source share a heat sink, then the structure is compact, but the heat dissipation efficiency is low
Solution Approach 1:
The heat dissipation system is segmented into two independent pathways: one for the light source through the heat sink, and another for the power supply through the power box. The heat sink includes a first connection portion for the light source and a second connection portion with the overlap structure for the power box, creating separate heat dissipation channels that prevent heat interference while maintaining structural compactness.
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 modular design enhances safety and heat dissipation efficiency, reducing the impact of the light source's heat on the power supply and extending the service life of both components while simplifying installation and reducing the risk of mechanical failure.
Implementation Method 1
a heat insulation gap is defined by the first overlap portion and the second overlap portion at a position staggered from the first bosses and the second bosses
Implementation Method 2
a heat sink configured to dissipate a light source
Implementation Method 3
a power box configured to accommodate and dissipate a power supply
Data Source
AI summary
Disclosed are a modular heat dissipation structure and an LED lighting device. The modular heat dissipation structure includes a power box configured to accommodate and dissipate a power supply; and a heat sink configured to dissipate a light source; where the heat sink includes a first overlap portion, the power box includes a second overlap portion, the first overlap portion is provided on a side of the heat sink opposite to the second overlap portion and is provided corresponding to the second overlap portion, and the first overlap portion is overlapped above the second overlap portion. The LED lighting device includes the above-mentioned modular heat dissipation structure.