摘要： 与传统光源相比，LED固态光源具有效率高，光色纯净，能耗低，使用寿命长，可靠耐用，应用灵活，无污染，已广泛应用于道路照明，家具照明，汽车照明，景观照明等领域。然而，良好的散热是LED出色的性能和稳定性的根本保证。 温度对LED的性能有重要影响，包括颜色变化，波长和效率下降，正向压降等，对LED的热管理性能，光转换效率和应用都有重要的影响。本文主要研究3014LED在光热特性方面的潜在优点。通过比较不同材料下的3014LED的热模拟得知选择热导率较高的材料有助于提高散热性能；通过对3014LED的光学追踪，得知3014LED的发光角度越大则中心光强越小、通过光学性能实验分析，在驱动电流不断提高下的光通量提高、色温提高、光效降低。71986
毕业论文关键词：贴片LED；散热分析；光学性能分析
Abstract: Compared with the traditional light source, LED solid-state light source with high efficiency, light color pure, low energy consumption, long life, reliable and durable, flexible application, no pollution, has been widely used in road lighting, furniture lighting, car lighting, landscape lighting field。 However, good heat dissipation is a fundamental guarantee of excellent performance and stability of LEDs。 Temperature has an important impact on LED performance, including color changes, wavelength and efficiency degradation, forward voltage drop, etc。, on the LED thermal management performance, light conversion efficiency and applications have an important impact。 This paper focuses on the potential advantages of 3014LED in terms of photothermal properties。 By comparing the thermal simulation of 3014LED under different materials, it is found that the material with high thermal conductivity can improve the heat dissipation performance。 By observing the optical tracing of 3014LED, it is known that the smaller the luminous angle of 3014LED is, the smaller the center light intensity is Optical performance analysis, in the drive current continues to improve the luminous flux, color temperature increased, reduced light efficiency。
Key words: SMD LED；thermal analysis；optical performance analysis
目录
1 绪论 4
1。1 课题背景 4
1。3研究的目的和意义 5
2 LED的概况 7
2。1 贴片LED的简介 7
2。2 LED的优点和缺点 7
2。3 3014LED的介绍 9
2。3。1 3014LED的规格 9
2。3。2 3014LED的结构图 9
2。3。3 3014LED的优势 9
3 所用软件介绍 11
3。1 Pro / Engineer的介绍 11
3。2 FLOEFD的介绍 12
3。3 Tracepro的介绍 13
4 3014LED的光热设计与优化 14
4。1 3014LED的模型构建 14
4。1。1 3014LED的参考模型 14
4。1。2 建模步骤 14
4。2 3014LED的光学优化 16
4。2。1对3014LED的光学追踪 16
4。2。2光学性能实验 17 3014LED光热设计与研究:http://www.youerw.com/wuli/lunwen_81787.html