Lighting Device Heat Sink Optical Plate Assembly
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Solution Overview
Problem
Existing lighting devices lack efficient heat radiation, optical efficiency, and ease of assembly, particularly in separating and connecting the light source and driving unit while maintaining effective heat management.
Innovation Solution
A lighting device design featuring a housing with a heat sink and optical plate, where the light source is spatially separated from the driving unit and connected via a reflector with inclined surfaces, a heat pipe for efficient heat transfer, and a connector for easy electrical connection, enhancing heat radiation and optical efficiency while allowing for easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the light source and driving unit are integrated in existing lighting devices, then the structure is simpler, but heat radiation efficiency is poor and maintenance is difficult
Solution Approach 1:
The lighting device is divided into separate functional modules: the light source module (with light emitting element) and the driving unit module (with circuit board), which can be independently installed and maintained. This segmentation allows each module to be optimized for its specific function, improving heat radiation efficiency while maintaining manageable structural complexity.
Solution Approach 2:
The light source is extracted from the driving unit and mounted on the heat sink, separating the heat-generating component from the electronic control component. This extraction enables independent heat management for the light source while keeping the driving unit cool and accessible for maintenance.
2Ease of repair
If the light source is separated from the driving unit, then heat management and maintenance are improved, but assembly complexity increases
Solution Approach 1:
The light source module is nested within the housing structure, with the reflector positioned inside the housing and the light emitting element mounted on the heat sink. This nested arrangement allows for compact packaging while maintaining easy access to individual components for maintenance, as each module can be removed independently from the housing.
3Illumination intensity
If a reflector with inclined surfaces is used, then optical efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The reflector features asymmetric inclined surfaces with different angles designed to redirect light from the LED in specific directions. This asymmetric geometry optimizes light distribution and optical efficiency by directing more light toward the optical plate while minimizing backward reflection, achieving better illumination without requiring complex curved surfaces.
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 design improves heat radiation efficiency, optical efficiency, and ease of assembly by separating the light source and driving unit, allowing for independent maintenance and improved heat management, resulting in a more effective and user-friendly lighting solution.
Implementation Method 1
heat sink disposed in the bottom opening
Implementation Method 2
heat sink disposed in the bottom opening
Implementation Method 3
a reflecting portion which reflects light emitted from the light source to the optical plate
Data Source
AI summary
A lighting device may be provided that includes: a housing having a top opening and a bottom opening; an optical plate disposed in the top opening; heat sink disposed in the bottom opening; a driving unit which is received in the housing, disposed between the optical plate and the heat sink and receives external electric power; and light source which is received in the housing, disposed between the optical plate and the driving unit, spatially separated from the driving unit and is electrically connected to the driving unit.