Edge-lit Downlight Heat Dissipation and Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional edge-lit downlight apparatuses face issues such as complex and costly die-casting processes, inadequate light emission performance, inefficient installation methods, and limited waterproofing, leading to higher installation costs and potential safety concerns.
Innovation Solution
The edge-lit downlight apparatus features a surface housing with a base and side wall, a laminate, and a light guide module, along with a circuit board using heat dissipation materials and L-shaped brackets with fasteners for improved heat dissipation and precise component alignment, combined with waterproof foam and mylar film for enhanced light quality and waterproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If die-casting process is used to manufacture surface ring, then temperature rise test is passed, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces the traditional die-casting mechanical manufacturing process with a plastic injection molding process. The surface ring is made from plastic material that can be directly molded into the required shape with integrated mounting features, eliminating the need for complex die-casting operations while maintaining thermal performance through material selection and structural design.
Solution Approach 2:
The patent changes the material parameter from metal (die-cast) to plastic (injection-molded). This parameter change allows for simpler manufacturing processes while achieving the required thermal management through proper plastic material selection and thermal conduction path design, reducing both manufacturing complexity and cost.
2Ease of manufacture
If only screws are used to press laminate against optical components, then assembly is simple, but light emission performance is unsatisfactory
Solution Approach 1:
The patent merges the mounting function and the pressing function into a single integrated bracket structure. The bracket combines the support function (holding the laminate) with the pressing function (applying force to optical components), eliminating the need for separate screw fasteners and achieving both simple assembly and good light emission performance through this unified design.
3Reliability
If bracket and screws are used for ceiling mounting, then installation is secure, but installation time and cost increase
Solution Approach 1:
The patent implements self-service mounting where the downlight apparatus includes integrated mounting features that enable direct attachment to ceiling surfaces without requiring separate brackets and screws. The apparatus mounts itself through built-in attachment mechanisms, maintaining secure installation while dramatically reducing installation time and labor costs.
4Ease of manufacture
If no waterproofing or low waterproof level is provided, then manufacturing is simpler, but scope of use is limited and safety concerns arise
Solution Approach 1:
The patent uses flexible waterproofing elements such as gaskets, seals, and waterproof films integrated into the housing structure. These thin flexible barriers provide effective waterproofing without significantly complicating the manufacturing process, enabling the downlight to be used in various environments including wet areas while maintaining 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
This configuration enhances heat dissipation, light-emitting efficiency, and waterproofing, reducing installation time and costs while ensuring safer and more efficient assembly and use in various applications.
Implementation Method 1
The outer surface wall of the circuit board contacts the side wall of the surface housing via a heat dissipation material
Implementation Method 2
there are a plurality of LED chips located on the inner surface wall of the circuit board
Data Source
AI summary
An edge-lit downlight apparatus includes a surface housing having a base and a side wall, a laminate, and a light guide module. The downlight apparatus includes a circuit board having an inner and an outer surface wall. The downlight apparatus includes first brackets, and each includes a body and a contacting part. The body of the first bracket abuts against the side wall of the surface housing, and the contacting part of the first bracket extends outward from the body and abuts against the laminate. The downlight apparatus includes fasteners passing through the contacting parts of the first brackets, the laminate, and being removably connected to the surface housing. LED chips are located on the inner surface wall of the circuit board.