Interchangeable Heat Sink Trays for LED Thermal Management
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Solution Overview
Problem
Existing LED light fixtures face challenges in thermal management, as integral heat sinks limit the ability to vary LED emitter orientations and quantities, complicating heat dissipation and increasing costs, while prior designs often compromise on heat transfer efficiency or introduce complexity.
Innovation Solution
A light fixture design featuring interchangeable heat sink trays and reflectors, allowing for various configurations of LED emitter packages and orientations, with thermally conductive trays and reflectors that maximize heat conduction and dissipation through a single housing, enabling flexible lighting patterns and efficient thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If heat sinks are made integral with the light housing, then heat dissipation efficiency is improved, but the ability to vary LED emitter orientations and quantities is reduced
Solution Approach 1:
The heat sink is divided into separate modular trays that can be independently attached to the housing, allowing different configurations of LED emitters while maintaining thermal conduction path to the housing for efficient heat dissipation
Solution Approach 2:
The housing includes a universal mounting structure that can accommodate multiple types of heat sink trays with different LED configurations, making the housing adaptable to various lighting requirements while maintaining thermal management functionality
2Temperature
If integral heat sink designs are used, then thermal conduction is improved, but device complexity and cost increase
Solution Approach 1:
The heat sink system is segmented into standardized trays that can be easily attached or removed from the housing, simplifying manufacturing and assembly while maintaining effective thermal conduction through the housing structure
Solution Approach 2:
The invention allows changing the configuration parameters (number, orientation, type) of LED emitters by simply changing the heat sink tray, without requiring changes to the housing structure or thermal conduction path
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 allows for efficient thermal management and flexible lighting configurations by maximizing heat conduction and dissipation, extending LED lifespan and maintaining light output while reducing complexity and cost.
Implementation Method 1
each of the plurality of heat sink trays interchangeably mountable in the tray receptacle, defining a plurality of mounting pads... thermally conductive trays... maximizing heat conduction and dissipation
Implementation Method 2
external cooling fins to further facilitate the dissipation of heat by convection and radiation
Implementation Method 3
dissipation of heat by convection and radiation
Data Source
AI summary
An illustrative lighting system provides a single light housing and an associated lens cover that together interchangeably receive one of a selection of heat sink trays and one of a selection of light reflectors. Each of the selection of heat sink trays includes a different number and/or orientation of light emitter packages. Each the selection of light reflectors includes openings and surfaces matching the number and orientation of light emitter packages for one of the selection of heat sink trays.