摘要： 在植物生长过程中，光照环境是影响其生长代谢的重要因素之一。为保证植物的高效生产，人工补光已逐渐成为提高植物生长效率的重要手段。而随着LED的发展，LED植物生长灯已逐渐替代传统光源的植物生长灯。本文就LED植物生长灯的散热性能及光性能两方面内容进行研究。首先通过实验测试了实物灯的光照分布情况，对其光照均匀度进行分析，并对实物灯的散热器、电源、反光杯等位置的温度情况进行了测试。之后以实物灯为参考模型，用PROE建模软件建立了植物灯的三维立体模型，并用FloEFD热模拟软件对其散热情况进行模拟，与实物模型的实际散热情况进行对比分析。并通过改变所建模型的散热器结构、材料导热系数、外壳材料等参数，对其进行热模拟优化操作。通过分析比对不同模型的模拟情况，整合得出一种较优的散热结构。结果表明，散热器的结构形状对灯具的散热性能影响并不明显，要较好地优化灯具的散热性能，还得从其材料入手。70955

毕业论文关键词： LED植物生长灯；光照均匀度；散热优化；光合作用；光谱特性

Study on structure, heat dissipation and light performance of plant growth lamp

Abstract: In the process of plant growth, light environment is one of the most important factors that affect the growth and metabolism. In order to ensure the efficient production of plants, artificial light has gradually become an important means to improve the efficiency of plant growth. With the development of LED LED, a plant growth lamp has gradually replaced the traditional light source plant growth light. This paper studies two aspects thermal properties and optical properties of LED plant growth lamp were tested by experiment. The first kind of lamp light distribution, the light of uniformity, and the real light radiator, power supply, temperature etc. the position of the reflector was tested. After the lights as a reference model in kind, the three-dimensional model of plant lamp is established with PROE modeling software, and the software of the heat was simulated by FloEFD thermal simulation, compared with the actual situation of the physical model of the heat radiator structure. By changing the model of thermal conductivity of the material, the shell material parameters, thermal simulation and optimization of its operation the simulation. Through analysis and comparison of different models, the integration of the heat dissipation structure better. The results show that the influence of shape radiator performance of the lamp is not obvious, heat dissipation performance to better optimize the lamps, have to start from the material.

Keywords: LED plant growth lamp;Illumination uniformity;Heat dissipation optimization ; Photosynthesis; Spectral characteristics

 目录

摘要 i

Abstract i

1 引言 1

1.1 植物生长灯的研究现状及发展趋势 1

1.2 植物生长灯的研究目的及意义 2

1.3 主要研究内容 3

2 植物生长灯概述 4

2.1 植物生长灯的设计工作原理和种类 4

2.1.1 植物生长灯的原理 4

2.1.2 植物生长灯的种类 5

2.2 植物生长灯的基本特性及优缺点 7

3 植物生长灯的散热设计及优化