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Design system and method for controllable service life of LED lamp

A technology for LED lamps and design systems, applied in computer-aided design, design optimization/simulation, calculation, etc., can solve problems such as high cost, long design cycle of LED lamps, long time-consuming LED lamp life test, etc., to achieve accurate life evaluation, Effect of cost reduction and cost minimization

Active Publication Date: 2018-04-06
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Because the design is repeated and iterative, and the life test of LED lamps takes a long time, the design cycle of traditional LED lamps is long and the cost is high. During the design process, the reliability and life of the product cannot be well controlled, and the target life cannot be reasonably and effectively Control the cost of LED lamps

Method used

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  • Design system and method for controllable service life of LED lamp
  • Design system and method for controllable service life of LED lamp
  • Design system and method for controllable service life of LED lamp

Examples

Experimental program
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Embodiment 1

[0032] A design system for the controllable life of LED lamps. The life evaluation of LED lamps is mainly divided into the following functional modules: basic data management, failure mechanism management, simulation modeling and other functional modules.

[0033] The system function module diagram is as follows: figure 1 , among them, the basic data management module, where the user can complete the entry, editing and management of basic data such as stress information, material information, and chip information. Each function is as follows:

[0034] a) The stress library is mainly used to describe the external stress in the failure and life of electronic components, mainly including 4 types: temperature cycle, random vibration, mechanical shock and humidity bias voltage. The description of different stress types mainly includes the identification of stress and the attributes of stress.

[0035] b) The material library mainly describes the relevant raw materials and records...

Embodiment 2

[0047] A design method for the controllable life of LED lamps, which comprehensively considers the composition and structure of LED lamps, including: power supply circuits, LED chips, cooling devices and other parts that may fail, combined with the environmental conditions that the lamps may use, including: temperature, humidity Etc., using possible failure models, perform evaluation calculations. Finally, the life time of LED lamps is obtained. For those that do not meet the design and use goals, adjust the relevant equipment design parameters to achieve the design of the controllable life of LED lamps; at the same time, by regarding the relevant environmental parameters as sensitive parameters, different The impact of environmental parameters on the life of LED lamps to strengthen the design of susceptible equipment parameters and reduce the impact of relevant environmental parameters on the life of LEDs.

[0048] The method includes the following steps:

[0049] S1. First ...

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Abstract

The invention discloses a design system and method for the controllable service life of an LED lamp. The system has a basic data management function, a failure mechanism management function and an analog simulation modeling function. The design method for the controllable service life of the LED lamp comprises the steps that all failure points in the LED lamp are set; parameters related to the failure points are set; proper failure models are selected, and the failure points are analyzed; for each model, a result of service life calculation of each model is given, and the designed service lifeof the LED lamp is obtained by synthesizing all the models; multiple failure points are analyzed in sequence. According to the design system and method, the structure and the environmental conditionof the LED lamp are comprehensively considered, and by combining with common failure models, the service life of the LED lamp is accurately estimated.

Description

technical field [0001] The invention relates to the technical field of LED product testing, in particular to a design system and method for controlling the service life of LED lamps. Background technique [0002] At this stage, when designing LED lamps, technicians cannot effectively design reliability and estimate product life in combination with the structure of LED lamps and the environmental conditions in which LED lamps are used in the design stage, and it is difficult to realize the controllable life design of LED lamps. [0003] In the existing technology, enterprises generally adopt the trial and error method to design LEDs. By repeatedly modifying LED design parameters and producing LED lamp samples for life experiment verification, the design scheme for the target life is finally obtained. Because the design is repeated and iterative, and the life test of LED lamps takes a long time, the design cycle of traditional LED lamps is long and the cost is high. During the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/04
Inventor 朱亮标蒋海苏黎新路国光尧彬
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST