LED Lamp Substrate Inclined Planes Heat Sink
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Solution Overview
Problem
Current LED lamps face challenges with heat-dissipation efficiency, narrow illumination beam angles, and non-uniform illumination intensity, limiting their lifespan and effectiveness in providing wide and even lighting.
Innovation Solution
The LED lamp design features a substrate with inclined planes for distributing LED lighting elements, a heat sink with fin-shaped radiation structures, and a reflector to enhance heat dissipation and light distribution, resulting in improved heat dissipation efficiency and uniform illumination intensity across a wider beam angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LEDs are arranged in an array on a plane, then the lamp structure is simple and easy to manufacture, but the beam angle becomes narrow and illumination is non-uniform
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement of LEDs to a three-dimensional configuration where LEDs are positioned at different heights and angles relative to the base plate. This dimensional change allows light to be emitted in multiple directions simultaneously, expanding the beam angle from a narrow directional pattern to a wide omnidirectional pattern while maintaining manufacturing simplicity through modular LED module design.
2Illumination intensity
If high-powered LEDs are used to increase brightness, then illumination intensity improves, but heat dissipation becomes insufficient and lifespan is limited
Solution Approach 1:
The patent divides the heat dissipation function into multiple independent components: individual heat sinks for each LED module, fin-shaped radiation structures on the base plate, and ventilation channels. This segmentation allows each component to handle heat from specific LED sources efficiently, preventing heat accumulation and ensuring that high-powered LEDs can operate at full brightness without compromising reliability due to overheating.
3Temperature
If a radiator is installed on the back of the base plane to improve heat dissipation, then heat dissipation efficiency increases, but the packaging structure interferes with effective heat dissipation
Solution Approach 1:
The patent merges the heat dissipation function directly into the base plate structure itself, combining the structural support function with thermal management. The base plate incorporates fin-shaped radiation structures and ventilation channels as integral features rather than separate components. This eliminates the need for additional packaging modifications and allows heat dissipation to occur efficiently through the base plate's own structure, resolving the conflict between heat dissipation efficiency and packaging complexity.
4Ease of manufacture
If LEDs are distributed on the same plane for simple structure, then manufacturing is easy, but heat dissipation efficiency is insufficient
Solution Approach 1:
The patent moves LED modules from a single-plane two-dimensional distribution to a multi-level three-dimensional arrangement. LED modules are positioned at different heights above the base plate, with some mounted on vertical surfaces and others on horizontal surfaces. This spatial distribution increases the surface area available for heat dissipation while maintaining manufacturing simplicity through standardized LED module components that can be installed in various orientations.
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 significantly enhances heat dissipation and achieves uniform illumination intensity with a wider beam angle, extending the lamp's lifespan and improving lighting performance.
Implementation Method 1
a heat sink connected with the substrate
Implementation Method 2
heat sink with fin-shaped radiation structures
Implementation Method 3
a reflector to enhance heat dissipation and light distribution
Data Source
AI summary
LED lighting lamps provide optimum heat dissipation efficiency, wide illumination beam angles, and substantially uniform illumination intensity. Generally, the disclosed LED lamps comprise at least one LED lighting element and a substrate with a plurality of inclined planes.