Lens Cap Heat Dissipation Layer for LED Lifespan
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Solution Overview
Problem
Solid state light sources like LEDs are prone to premature failure due to heat buildup, which reduces their lifespan and efficiency, as existing heat dissipation methods are inadequate.
Innovation Solution
A light assembly with a heat dissipation layer integrated into the lens cap, which distributes heat from the light source circuit board externally, using thermally conductive materials and designs such as mesh layers or coatings to enhance heat transfer and prevent backscattered light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If light-emitting diode lights are used to reduce power consumption and environmental impact, then energy efficiency and environmental friendliness are improved, but heat buildup causes premature failure and reduced lifespan
Solution Approach 1:
The patent extracts the heat dissipation function from the traditional heat sink structure and integrates it into the lens cap assembly. The lens cap is transformed into a dual-function component that both directs light and dissipates heat through embedded heat dissipation layers and thermally conductive pathways, thereby extending LED lifespan without adding separate heat management components.
Solution Approach 2:
The lens cap assembly is designed to perform multiple functions simultaneously: optical function (directing and shaping light), thermal management function (dissipating heat from LED), and structural function (protecting LED components). This multi-functionality resolves the contradiction by integrating heat dissipation into an existing component rather than adding separate systems.
2Temperature
If heat dissipation structures are added to light-emitting diode lights, then heat removal is improved, but device complexity increases
Solution Approach 1:
The patent merges the heat dissipation function with the lens cap structure by embedding heat dissipation layers within or on the lens cap assembly. Thermal pathways are integrated into the existing optical component, allowing heat to be conducted from the LED through the lens cap to the surrounding environment, thereby improving heat removal without increasing structural complexity.
Solution Approach 2:
The lens cap assembly serves dual purposes: maintaining its optical function for light direction while simultaneously serving as a heat dissipation structure through embedded thermal management layers and conductive pathways. This eliminates the need for separate heat sink components, resolving the contradiction between effective heat removal and structural simplicity.
3Temperature
If heat dissipation layers are integrated into the lens cap, then heat distribution is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs screen printing technology to deposit heat dissipation layers with specific thermal conductive properties onto the lens cap surface. By controlling the deposition parameters (material composition, layer thickness, pattern density), the invention achieves optimized heat distribution while using established manufacturing techniques that balance performance enhancement with manufacturing feasibility.
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 solution effectively prolongs the lifespan of solid state light sources by efficiently dissipating heat, reducing the risk of premature failure and maintaining high lumen-per-watt output while minimizing environmental impact.
Implementation Method 1
a heat dissipation layer distributes heat from the light source circuit board through the lens cap and external to the light assembly
Data Source
AI summary
A light assembly includes a light source circuit board, a plurality of light sources disposed on the light source circuit board, a housing thermally coupled to the light source circuit board and a lens cap assembly comprising a lens cap and a heat dissipation layer. The heat dissipated layer distributes heat from the light source circuit board through the lens cap and external to the light assembly.