PHILIPS(飞利浦) LED光源散热设计指南.ppt

邹静( @ ) GBU LED Lamps and Systems June 2010 General Guide to the Heatsink Design for Fortimo modules Confidential GBU LED Lamps and Systems, June 2010 2 Nice to know: ?/ lexel ?/ fortimo 网上有:? Product leaflet; ? Design-in guide; ? Optical files; ? Catalog; ? Photometric files ? Certificates ? 3D file such as CAD file Confidential GBU LED Lamps and Systems, June 2010 3 LED 模组会因为没有接散热器,过度受热而坏掉吗? Confidential GBU LED Lamps and Systems, June 2010 4 LED 模组会因为没有接散热器,过度受热而坏掉吗? 不会, 我们的模组有高温保护功能,一旦模组温度升到一定值, 驱动器的输出电流会自动减小,这会阻止模组温度继续升高。 Confidential GBU LED Lamps and Systems, June 2010 ? LED Performance issue? Tj必须保持在特定的温度下,以免颜色飘移, 或者光通的改变。 5 Why Bother? Confidential GBU LED Lamps and Systems, June 2010 ? LED Performance issue? Tj必须保持在特定的温度下,以免颜色飘移, 或者光通的改变。? Lifetime concern? 焊点经历一定次数冷热循环后(热胀冷缩的循环)会产生脱节。一般来说,焊点的温度越高,脱节前经历的冷热循环数越低。 6 Why Bother? Confidential GBU LED Lamps and Systems, June 2010 Tc 对于模组来讲,只要 Tc 保持在 < 650C or 550C, lifetime ( B50L70 )会在 50000 个小时左右。 LLM 模组由于具有 CLO ,所以 lifetime 不使用 L70 。7 Tc and Lifetime Module Tc life ( 0C) DLM 65 Lexel 65 SLM 65 LLM 55 Twistable 55 Confidential GBU LED Lamps and Systems, June 2010 8 Special features Fortimo LED linear Confidential GBU LED Lamps and Systems, June 2010 9 多少的功率(百分比)变成了热? Confidential GBU LED Lamps and Systems, June 2010 10 How much power is turned into heat? 一般来说, 有 remote phosphor 的模组, 比如: 2/3 的模组消耗的功率(系统功率–驱动器的功率)转变成了热。