基于LED的高開(kāi)間燈具設(shè)計(jì)技巧

　　基于LED的高開(kāi)間燈具設(shè)計(jì)技巧

　　雖然住宅照明的固態(tài)照明成為頭條新聞，商業(yè)和工業(yè)高灣照明應(yīng)用程序獨(dú)特的優(yōu)勢(shì)，利用LED的好處。高灣照明由天花板安裝的燈具設(shè)計(jì)，用來(lái)照亮離燈具15至25英尺的表面。使用高灣照明環(huán)境遠(yuǎn)遠(yuǎn)超出了倉(cāng)庫(kù)和工廠車(chē)間到包括公共場(chǎng)所，如機(jī)場(chǎng)大廳、體育場(chǎng)館和雜貨店。通常，設(shè)備每天運(yùn)行24小時(shí)，因此，無(wú)論是在運(yùn)營(yíng)成本還是減少停機(jī)時(shí)間方面，LED都可以節(jié)省大量開(kāi)支。為了開(kāi)發(fā)利用這些特性的燈具，照明設(shè)計(jì)者不僅需要選擇合適的發(fā)射器，他們還必須采取系統(tǒng)級(jí)的方法來(lái)解決LED驅(qū)動(dòng)的挑戰(zhàn)，比如驅(qū)動(dòng)程序設(shè)計(jì)和熱管理。

　　1DesignLights聯(lián)盟建立了以下規(guī)格為非住宅固定裝置。

　　Table 1： Lighting specifications for non-residential fixtures.

　　Design challenges

　　High-bay lighting presents a number of challenges to designers. The high output lumen specification requires large arrays of LEDs， which can generate a significant amount of heat. Driver topologies must be able to handle hundreds of devices while remaining lightweight， economical， and as efficient as possible. Located up against the ceiling， often near HVAC ducting， fixtures can be subjected to higher than normal ambient temperatures with very little room for convective cooling to take place. In addition， many facilities have very specific requirements for light distribution， which can necessitate beam-shaping components.