摘要： LED线性（洗墙）灯以其独特的造型、优异的散热及小角度配光设计等特点受到使用者和消费者的关注和喜爱。此次测试两款LED线性（洗墙）灯，对其散热设计和配光设计进行测试研究，并比较实际设计本身和计算机模拟优化的结果。实验分为实际测试部分和计算机模拟部分：测试部分，测试LED洗墙灯在额定工作状态下的温度分布和出射角大小情况；模拟部分，通过计算机Creo软件建模，FloEFD 软件热学模拟两款LED洗墙灯的温度空间分布情况。实际测试其温度分布结果，其外壳散热其内部芯片在30 ℃以内（环境温度为12℃）内外温差T为18℃；在实际配光角度测量，其出射角测试使用定义法测量其出光角度，小于30°内，符合LED洗墙灯光学设计标准。计算机模拟实验设计，优化设计中，通过改变电源在腔内位置、外壳结构、以及散热材料对散热效果及芯片温度的影响，比较得出最优设计方案。70158

毕业论文关键词：LED洗墙灯；温度分布；热模拟；出光角度；

Study on Cooling and Small Angle Light Distribution of Radial Lamp（Led wall washer）

Abstract: LED linear (wall wash) lamp with its unique shape, excellent heat dissipation and small angle with light design and other characteristics by the users and consumers of concern and love. This test two LED linear (wall wash) lamp, its thermal design and light distribution design test research, and compare the actual design itself and computer simulation optimization results. The experiment is pided into the actual test part and the computer simulation part: test part, test the LED wall washer in the rated working state of the temperature distribution and exit angle size; simulation part, through the computer Creo software modeling, FloEFD software thermal simulation of two LED The temperature distribution of the wall washer. The internal temperature difference T of the internal chip is within 30 ℃ (ambient temperature is 12 ℃). The actual temperature difference T is 18 ℃. In the actual light distribution angle measurement, the exit angle test uses the definition method to measure the light angle, Less than 30 °, in line with LED wall washer optical design standards. In the computer simulation experiment design and optimization design, the optimal design scheme is obtained by changing the influence of the power supply in the cavity position, the shell structure and the heat dissipation material and the chip temperature.

Keywords: LED wall washer; temperature distribution; thermal simulation; light angle.

 目录

摘要 i

Abstract i

1 绪论 1

1.1课题研究背景 1

1.1.1  LED灯发光原理 1

1.1.2 LED灯产热原理 2

1.2课题的主要研究内容 3

1.2.1 对两款LED线性（洗墙）灯的小角度配光的测量和分析 3

1.2.2 对两款LED线性（洗墙）灯的散热进行测试与分析并比较热学模拟情况 4

1.2.3对LED线性（洗墙）灯的进行多方面的散热设计 4

1.2.4就LED线性（洗墙）散热的新型材料使用热模拟分析 4

2 LED线性（洗墙）灯的小角度配光的测量和分析