Modular LED Reflector Design for Mold Cost Reduction
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Solution Overview
Problem
The high cost and complexity of producing reflectors for LED lighting devices are exacerbated by the need for numerous molds to accommodate various types of LEDs with different electrical contacts and dimensions, leading to increased production costs and reduced amortization of molds.
Innovation Solution
A modular reflector design with interchangeable first and second portions, each with its own reflective optical surface, allows for a single main optical surface to be created using a minimal number of molds, reducing production costs and enabling easy adaptation to different LED types without requiring new molds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate mold is created for each LED type and adapter combination, then the reflector can be precisely adapted to each specific LED configuration, but the number of molds increases extremely high and production costs increase significantly
Solution Approach 1:
The reflector is designed with a universal mounting structure that can accommodate multiple LED types and adapter configurations through a standardized mounting interface. The reflector body includes a mounting portion with a cavity that can receive different adapters, allowing a single reflector design to serve multiple LED types without requiring separate molds for each combination.
Solution Approach 2:
The reflector is divided into distinct functional portions: a mounting portion for securing the adapter and LED assembly, and a reflective portion for optical functionality. This segmentation allows the mounting portion to be standardized while the reflective portion can be optimized for optical performance, reducing the need for completely different reflector designs for each LED type.
2Ease of manufacture
If the reflector design is standardized to reduce the number of molds, then production costs decrease and amortization improves, but the ability to adapt to different LED types and contact positions is reduced
Solution Approach 1:
An adapter component serves as an intermediary between the standardized reflector mounting structure and the various LED types. The adapter interfaces with the universal mounting portion of the reflector while providing the specific mechanical and electrical connections required for different LED configurations, allowing standardization of the reflector while maintaining compatibility with diverse LED types.
3Ease of manufacture
If the reflector is designed as a single integrated piece, then manufacturing is simpler, but heat dissipation from LED chips is insufficient
Solution Approach 1:
The reflector is segmented into a mounting portion and a reflective portion, with the mounting portion serving as a thermal management interface. This segmentation allows the mounting portion to be designed with thermal conductivity and heat dissipation features, while the reflective portion focuses on optical performance, and the two can be manufactured separately and assembled together.
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 approach significantly reduces the number of molds needed, lowers production costs, and allows for efficient heat dissipation while maintaining optical efficiency, making LED lighting devices more economically viable and easier to produce.
Implementation Method 1
a main optical surface (14) which is positionable around said at least one LED chip (97) so as to surround laterally the latter for reflecting and distributing in a homogeneous manner a light flux towards said second opening (54)
Implementation Method 2
said reflector further comprises second coupling means (60) which connect and fasten firmly in a non permanent manner, that is in a reversible manner, said first portion (30) to said second portion (50) for making continuous said main optical surface (14) and for making replaceable said first portion (30) independently from said second portion (50)
Data Source
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AI summary
A reflector for a LED lighting device (10) provided of at least one LED chip (97), said reflector comprises a second opening (54) and a main optical surface (14), in addition said reflector comprises first coupling means (40) for fastening the latter internally to the lighting device (10). The reflector comprises a first portion (30) provided with the first coupling means (40) and, in addition a second portion (50) which is decouplable from the first portion (30), and wherein the main optical surface (14) comprises a first reflective optical surface (35) and a second reflective optical surface (55) realized respectively internally to the first portion (30) and internally to the second portion (50), in addition the reflector comprises second coupling means (60) which connect and fasten stably in a non permanent manner the first portion (30) to the second portion (50) for make continuous the main optical surface (14) and for make the first portion (30) and the second portion (50) replaceable respectively with different first portions (30) or different second portions (50) by reducing advantageously the costs for the realization of moulds and especially the number of moulds needed for realizing a plurality of reflectors for a plurality of different types of LED chips (97) and for different types of LED lighting devices (10).