Split Lighting Engine Thermal Management
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Solution Overview
Problem
Traditional lighting devices, such as incandescent and LED lighting, face challenges in balancing light output with heat management, as LEDs generate heat during operation, which can lead to reduced lifespan and efficiency.
Innovation Solution
A split lighting engine with thermally separated sub-engines, each equipped with a component to regulate electric current or power based on its thermal environment, allowing for individual operation and enhanced heat dissipation, thereby increasing power application and light generation while prolonging component lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a single large lighting engine is used, then the device structure is simpler, but the heat dissipation capability is reduced and component lifespan is shortened
Solution Approach 1:
The lighting engine is divided into multiple independent sub-engines (first sub-engine and second sub-engine), each with its own solid state light source and current regulation component. This segmentation allows each sub-engine to dissipate heat independently, preventing thermal accumulation that would otherwise shorten component lifespan, while maintaining overall system functionality through modular architecture.
2Illumination intensity
If more power is applied to increase light output, then illumination intensity increases, but heat generation increases and component lifespan decreases
Solution Approach 1:
By dividing the lighting system into multiple sub-engines with independent thermal zones, each sub-engine can operate at high power levels to maximize light output without causing excessive heat accumulation in a single location. The thermal separation allows sustained high illumination intensity while preserving component lifespan through distributed heat management.
3Duration of action of stationary object
If heat dissipation is improved through thermal separation, then component lifespan is extended, but the device structure becomes more complex
Solution Approach 1:
The lighting device employs multiple sub-engines positioned to create natural thermal separation, with each sub-engine comprising a solid state light source and associated current regulation components. This segmentation inherently distributes heat generation across multiple spatial zones, extending component lifespan through reduced thermal stress while maintaining a structured but manageable device architecture.
4Temperature
If current regulation components are added to each sub-engine, then individual thermal management is achieved, but device complexity increases
Solution Approach 1:
Each sub-engine is equipped with its own current regulation component, creating independently controllable thermal zones. This segmentation enables precise temperature management for each light source, allowing the system to adapt to varying thermal environments and extend component lifespan through optimized thermal conditions, while the modular component arrangement keeps the overall complexity manageable.
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 enables increased heat dissipation, allowing for more power to be applied to the lighting engine, resulting in higher light output and prolonged component lifespan by adapting to varying thermal environments.
Implementation Method 1
LEDs generate heat during operation due to the imperfect conversion from electrical energy to light
Implementation Method 2
including heat sinks for storing the heat, and/or heat conductors which transport the heat to an enclosure
Implementation Method 3
heat conductors which transport the heat to an enclosure, e.g. an envelope in an LED bulb
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present invention relates to a lighting device (100, 200, 300) comprising a split lighting engine with at least two thermally separated sub-engines (104, 106, 202, 204, 206, 302). Each sub-engine comprises at least one solid state light source (114, 212, 306) and a component (118, 210, 304) adapted to regulate electric current or power to the at least one solid state light source (114, 212, 306), so that the sub-engines (104, 106, 202, 204, 206, 302) are individually drivable based on a thermal environment of each sub-engine.