Flow-Through LED Cooling via Segmented Heat Sink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
LED lighting fixtures face challenges in heat dissipation and adaptability for various mounting positions and situations, requiring improved designs that facilitate efficient heat management and easy installation and maintenance.
Innovation Solution
The design incorporates a housing with a heat sink that allows for constant air circulation, featuring fins extending from the centerline to facilitate airflow and a mounting assembly that simplifies installation, including a fastener system for secure attachment to overhead structures, allowing for easy adjustment and removal by a single person.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a traditional LED lighting fixture design is used, then the fixture structure is simple, but heat dissipation efficiency is poor
Solution Approach 1:
The heat sink is segmented into multiple fins extending from the centerline, creating separate airflow channels that enhance heat dissipation efficiency by increasing surface area and promoting convective heat transfer
Solution Approach 2:
The heat sink fins extend radially from the centerline in multiple dimensions, transforming a simple linear structure into a three-dimensional heat dissipation array that maximizes exposure to airflow while maintaining structural integrity
2Adaptability or versatility
If a specialized mounting assembly is designed for each mounting position, then mounting adaptability is improved, but device complexity increases
Solution Approach 1:
The mounting assembly is designed as a universal system with adjustable positioning mechanisms that can accommodate various mounting positions and configurations, eliminating the need for specialized assemblies for each application
Solution Approach 2:
The mounting assembly incorporates adjustable and reconfigurable components that allow dynamic adaptation to different mounting requirements, enabling a single assembly design to serve multiple mounting scenarios
3Reliability
If complex installation procedures are used, then mounting security is improved, but ease of operation deteriorates
Solution Approach 1:
The mounting assembly is pre-configured with alignment features and positioning elements that guide correct installation, eliminating the need for complex alignment procedures and reducing installation complexity while maintaining mounting security
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 solution enhances heat dissipation and adaptability, ensuring efficient operation across different mounting configurations while simplifying installation and maintenance, addressing the limitations of prior LED lighting fixtures.
Implementation Method 1
The heat sink is configured and positioned in the open space to facilitate fluid-flow therealong and through the open space... cool air from outside the fixture enters the open space through the light opening. When the cool air is heated while flowing through the heat sink, it turns into hot air which raises up through the open top.
Implementation Method 2
a heat sink connected to the light emitter(s)... The heat sink preferably has a plurality of heat-dissipation surfaces extending away from the light opening
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A lighting fixture (10) including a housing (20) having an inner surface (23) and open first and second ends (21, 22) formed by closed-perimeter first and second edges (210, 220), respectively, and defining an elongate top-to-bottom open space (12). The first end forms a light opening (13). A light-emitting arrangement (30) is positioned in the open space. The arrangement includes (a) at least one light emitter (31) positioned for directing light toward the light opening and (b) a heat sink (40) connected to the light emitter(s). The heat sink preferably has a plurality of heat-dissipation surfaces (41) extending away from the light opening. The heat sink is configured and positioned in the open space to facilitate fluid-flow therealong and through the open space.