LED灯具内流道气流对散热影响的研究

Research on the Influence of Inside Airflow of LED Luminaires on Heat Dissipation

研究内流道气流对LED灯具的影响,制作了8种不同开孔面积的后盖,测试了安装不同后盖的灯体的光源温度,并利用仿真方法得出不同后盖对应的内气流量。结果表明,不同开孔率的后盖会产生不同的内气流,进而影响光源温度。

The paper studies the influence o inside airflow on LED luminaires. Eight kinds of back covers opening in different area were fabricated,and the test of light source temperature of luminaire body with different back covers was conducted. The CFD method was used to obtain the internal flowrate of different back covers. The results show that the different openings of the back cover will produce different internal airflow,which in turn affects the temperature of the light source.