Uniform LED Substrate Design for Multi-Wavelength Light Irradiation
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Solution Overview
Problem
The existing light irradiation devices require multiple LED substrates and chassis of varying sizes due to differences in the number of LEDs, leading to increased parts and manufacturing costs.
Innovation Solution
A light irradiation device with a common multiple of LEDs mounted on a uniform substrate size, allowing the same chassis to be used across different types, reducing the number of parts and costs by employing the least common multiple of LED units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the number of LEDs is adjusted according to different LED types (red, white, infrared) to match power source voltage, then the electrical compatibility is improved, but the LED substrate size and chassis specifications must vary for each LED type
Solution Approach 1:
The patent applies universality by designing a single standardized LED substrate size (100mm x 20mm) and a single chassis specification that can accommodate multiple LED types (red, white, infrared). Instead of creating dedicated substrates and chassis for each LED type, the invention creates a universal platform that works with all LED types through standardized mounting holes and electrical connections, thereby reducing the number of part specifications while maintaining electrical compatibility.
Solution Approach 2:
The patent changes the electrical connection parameters by providing multiple connection terminal configurations on the same standardized substrate. The substrate includes multiple sets of connection terminals (first, second, third, and fourth connection terminals) that can be connected in different series combinations to match the forward voltage requirements of different LED types, allowing one substrate design to serve multiple electrical configurations.
2Reliability
If dedicated LED substrates are prepared for each LED type, then the electrical performance is optimized, but the manufacturing cost and inventory complexity increase
Solution Approach 1:
The invention creates a universal LED substrate design that can be used across all LED types (red, white, infrared) by incorporating multiple connection terminals that can be configured in different series combinations. This single universal substrate design replaces the need for multiple dedicated substrate designs, thereby reducing manufacturing complexity and inventory requirements while maintaining optimized electrical performance for each LED type through appropriate terminal connections.
3Use of energy by moving object
If the number of LEDs on the substrate varies by type, then the forward voltage matching is achieved, but the chassis design must be customized for each substrate type
Solution Approach 1:
The patent applies universality by designing a single chassis specification with a standardized substrate housing space that can accommodate the universal LED substrate (100mm x 20mm) regardless of LED type. The chassis includes mounting holes and electrical connection structures that work with the standardized substrate design, eliminating the need for customized chassis designs for each LED type while maintaining proper forward voltage matching through the substrate's configurable connection terminals.
Data Source
AI summary
The present invention uniforms a size of an LED substrate 2 to realize reduction of the number of parts and reduction of a manufacturing cost, and is a light irradiation device comprising: a long LED substrate 2 on which a plurality of same LEDs 21 are mounted; a chassis 3 having a substrate housing space for housing the LED substrate 2, wherein the number of LEDs 21 in which a difference between a power source voltage VE and a sum of a forward voltage Vf in the series connection of the LEDs 21 is within an allowable range is employed as the number of LED units, and the number of LEDs 21 mounted on the LED substrate 2 is a common multiple of the number of LED units determined in each of LEDs 21 of different wavelengths.