LED Module Switching Layout for Uniform Light Along Long Strings
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Solution Overview
Problem
Existing LED modules face challenges in achieving uniform light output due to wire resistance, leading to inefficiencies in energy consumption and non-uniform brightness along their length.
Innovation Solution
The LED modules are designed with an adaptive configuration that allows for flexible connection options, either bypassing additional wire resistance for uniform light output or using it for high efficiency, depending on operational conditions such as brightness and energy efficiency requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If multiple LED module subassemblies are connected in a daisy chain configuration, then the required length can be achieved, but wire resistance causes non-uniform light output and energy loss
Solution Approach 1:
The patent divides the long LED module into multiple subassemblies (first LED module subassembly and second LED module subassembly) that can be connected together. Each subassembly has its own local interconnection, allowing the system to achieve long lengths while maintaining manageable wire resistance within each segment, thus reducing overall energy loss.
Solution Approach 2:
The patent introduces a third wire as an intermediary connection that directly links the LED lighting arrangement to the interconnection pair at the opposing end of each subassembly. This third wire provides an alternative current path that bypasses the long series connection through multiple subassemblies, reducing the cumulative wire resistance and associated energy losses.
2Length of moving object
If multiple LED module subassemblies are connected in a daisy chain configuration, then the required length can be achieved, but wire resistance causes non-uniform brightness along the length
Solution Approach 1:
The patent divides the long LED module into multiple subassemblies with localized interconnections. This segmentation ensures that each subassembly has a manageable wire resistance, allowing uniform current distribution and consistent light output across each segment, thereby achieving overall uniformity along the entire length.
Solution Approach 2:
The patent implements local interconnection pairs at both ends of each LED module subassembly, creating symmetric local quality in terms of electrical connection. This ensures that current can enter and exit each subassembly equally, maintaining uniform brightness distribution across the entire assembled LED module.
3Illumination intensity
If additional wires are added to achieve uniform light output, then light uniformity improves, but device complexity increases
Solution Approach 1:
The patent segments the LED module into subassemblies, each with standardized interconnection pairs at both ends. This segmentation allows the additional wiring (third wire) to be systematically organized within each segment rather than across the entire length, making the complexity manageable and modular.
Solution Approach 2:
The interconnection pair at each end of the LED module subassembly serves multiple functions: it provides both the series connection for daisy chaining and the local connection point for the third wire. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity.
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 design ensures uniform light output across the length of the LED module while optimizing energy efficiency, accommodating different application needs through real-time reconfiguration.
Implementation Method 1
a LED lighting arrangement
Implementation Method 2
the resistance of the wire in each LED module assembly should not be neglected and needs to be taken into account
Data Source
AI summary
It is proposed LED modules for providing uniform light, each module being connected with one other LED module to form a string with a driver side to be connected to a driver and an opposing side, said LED module extends along a length of the LED module, comprising a LED lighting arrangement (D1 to D9); a first interconnection pair (X1, X5) and a first wire (40) connecting the first interconnection pair (X1, X5), across the length of the LED module, adapted to couple to a first output (+) of the driver and to a first interconnection pair (X1, X5) of the other LED module; a second interconnection pair (X4, X8) and a second wire (42) connecting the second interconnection pair (X4, X8), across the length of the LED module, adapted to couple to a second interconnection pair (X4, X5) of the other LED module and a second output (−) of the driver; and a third interconnection pair (X2, X6) and a third wire (44) connecting the third interconnection pair (X2, X6), across the length of the LED module and adapted to couple to a third interconnection pair (X2, X6) of the other LED module; wherein the LED lighting unit (D1 to D9) and one of the first and second wire (40, 42) are connected, and said LED module further comprises a selection circuit adapted to select, according to an operation condition, the LED lighting arrangement connected to said third interconnection pair (X2, X6) of the other LED module, thereby each LED module in the string being coupled to the driver via the other and remaining LED modules till the opposing side; or to the other one of the first and second wire (40, 42) within said LED module thereby each LED module being coupled to the driver without via the other or remaining LED modules till the opposing side.