Test bed for testing comprehensive performance of LED modules

Abstract

The invention discloses a test bed for testing comprehensive performance of LED modules in the technical field of LED measurement. A double-station mode is provided with two sets of independent automatic loading and unloading machines, a PCB (printed circuit board) detector, an LED module electrical parameter detector, an LED module light intensity detector, an LED module spectrum parameter and chromaticity detector, an LED module defect repairer and a qualified product and unqualified product sorter; and the LED modules of two different specifications can be tested at the same time. Multi-variety online quick test and sorting can be efficiently matched by adopting a rotary sorting mode, combining a computer and a motion control card and controlling independent operation of each tester. The test bed can be adaptive to performance test of the LED modules of multiple specifications, is simple and convenient to operate, has high automation degree, can effectively and comprehensively reflect the comprehensive performance indexes of the tested LED modules, and has actual significance for improving quality control of the LED modules and research on industrialized key test technology of the LED module industry.

Description

technical field [0001] The invention relates to a mechanism in the technical field of LED measurement, specifically, a test bench for comprehensive performance testing of LED modules. Background technique [0002] As a new generation of lighting source, LED has the characteristics of low power consumption, small size, long life, etc., and has broad application prospects. In recent years, LED lighting technology has become one of the most promising high-tech fields in the world. my country's performance in the LED industry is extremely active, with continuous breakthroughs in technology and more and more applications. Especially through the implementation of the "National Semiconductor Lighting Project", China's LED industry has entered a new stage of accelerated development, providing a solid foundation for the development of the LED industry. Good opportunity. However, at present, my country has not yet formed a formal standard for the testing of LED and related products, ...

AI Technical Summary

Problems solved by technology

However, at present, my country has not yet formed a formal standard for the testing of LED and related products, especially LED modules, and there is no unified standard requirement and testing method to regulate the entire industry. Unnecessary disorderly competition and technological confusion have seriously hindered the rapid development of the industry

However, the original Ministry of Information Industry stipulated only the test method for the characteristic parameters of semiconductor light-emitting devices. This test method is only suitable for the test of a single LED chip, and the required equipment is large in size and high in cost, so it is not suitable for a large number of real-time tests on industrial production lines.

In addition, since the LED module is a combined product integrating multiple LEDs, the current general-purpose conventional LED light-emitting device characteristic parameter detection instrument cannot fully reflect the electrical and optical characteristics of the LED module.

[0003] After searching the existing technical literature, it was found that Yao Xiaodong invented an automatic tester for LED modules in the utility model patent application, and discussed the overall structure of an automatic assembly line tester for LED modules. However, this Since the detector uses the transmission mechanism of the sprocket chain and uses photoelectric sensors for positioning, it is difficult to ensure the precise positioning of the module, which makes the failure rate higher during the test and reduces the detection efficiency.

In addition, the tester does not have the ability to detect module boards and spectral parameters, so it is not suitable for testing comprehensive performance LED modules

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