LED灯具的热分析与散热设计

对灯具结构进行热分析是设计灯具时必须完成的一项工作。依照LED灯具热分析公式,只有依靠减少散热部件热阻的方法达到散热效果。热阻为阻止热量传递的能力的综合参量,数值越低表示芯片中的热量传导到支架或铝基板上越快。应通过减小热阻以加强传热,这有利于降低LED的温度,从而延长LED灯具的寿命。

Thermal Analysis and Cooling Arrangement Design for LED Luminaire

Thermal analysis is an important work before designing LED lamps. According to the thermal analysis formula, to draw heat away from the LED lamp must reduce the thermal resistance. Thermal resistance is a parameter that prevents heat from transferring. The smaller thermal resistance is, the faster drawing heat will be.To draw heat needs to reduce the thermal resistance. Reducing thermal resistance can help reduce LED chip temperature and extend life of LED luminaire.