Snap-Fit Reflector Housing for Linear Lighting
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Solution Overview
Problem
Traditional linear lighting systems face manufacturing complexities and cost implications due to the need for precise hole patterns in reflectors and housings, as well as the requirement for specialized form tooling for connector integration, limiting design flexibility and increasing production expenses.
Innovation Solution
The proposed lighting system features a housing with catches that allow a direct reflector with branching structures and a lens to snap into place, eliminating the need for specialized tooling and simplifying the manufacturing process while enhancing design flexibility and lumen output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional sheet metal production processes with precise hole patterns are used for reflectors, then manufacturing precision is improved, but device complexity and production cost increase
Solution Approach 1:
The reflector is divided into multiple modular segments that can be assembled without requiring precise hole patterns. Each segment can be independently manufactured with simpler geometry, and the segments connect through interlocking features rather than requiring precise drilling and fastening, thus reducing overall manufacturing precision requirements while maintaining structural integrity
Solution Approach 2:
The reflector design incorporates universal mounting features and standardized connection interfaces that can accommodate various housing configurations without requiring custom hole patterns. This multi-functional approach allows the same reflector design to be used across different applications, reducing the need for precision drilling in each specific case
2Manufacturing precision
If specialized form tooling is used for connector integration, then manufacturing precision is improved, but production cost and device complexity increase
Solution Approach 1:
The connector components are designed to self-align and self-secure through elastic deformation and geometric interlocking. The housing and reflector features automatically guide and position the connectors during assembly without requiring specialized tooling, enabling the components to service their own positioning and securing functions
Solution Approach 2:
The connector design uses simple, inexpensive materials and geometries that can be manufactured with standard tooling rather than expensive specialized fixtures. The connectors are designed as simple plastic or metal pieces that can be easily replaced if needed, avoiding the high upfront cost of specialized form tooling
3Ease of manufacture
If snap-in connection is used for reflector and lens, then ease of manufacture is improved, but manufacturing precision may be compromised
Solution Approach 1:
The snap-in connection incorporates elastic deformation in the housing or reflector features, allowing dynamic adjustment during assembly. The elastic elements deform to accommodate slight misalignments and then spring back to secure the connection, providing tolerance compensation that maintains precision despite the simplicity of the snap-in process
Solution Approach 2:
The snap-in features are designed with optimized geometric parameters such as curvature radii, wall thicknesses, and engagement angles that enable precise positioning through the deformation characteristics of the materials. By carefully controlling these parameters, the snap-in connection achieves both ease of manufacture and acceptable precision
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 simplifies the manufacturing process, reduces production costs, and offers greater design flexibility while maintaining optimal reflective surfaces and lumen output, effectively addressing the limitations of traditional linear lighting systems.
Implementation Method 1
A surface of the LED printed circuit board contacts the direct reflector and dissipates heat to the direct reflector. The snap in function of the reflector to the housing creates an efficient way to dissipate heat generated from the led board to transfer heat from the heat source thru the reflector to the housing's exterior surface.
Data Source
AI summary
A lighting system including a housing defining a cavity. The housing has catches protruding into the cavity. The lighting system has a direct reflector positioned in the cavity that has a first and second branch. The first and second branches each have a finger extending from the branch at a branch intersection and bending at a finger joint, and a bent shank also extending from the branch intersection. The bent shank extends along a neck portion and bends at a shoulder to form a nook. The first and second branches are configured to snap into the catches of the housing between the finger joint and the shoulder of the bent shank. The lighting system also has a lens configured to snap into the nook of the bent shank, and an LED printed circuit board positioned between the branches.