本文選題：發(fā)光二極管(LED)　切入點(diǎn)：散熱器　出處：《半導(dǎo)體技術(shù)》2017年02期

【摘要】：針對(duì)設(shè)計(jì)出來(lái)的諸多結(jié)構(gòu)樣式LED散熱器的具體選用問(wèn)題,提出了一種對(duì)比選用方法。以一個(gè)LED光源的散熱為基準(zhǔn),闡述了對(duì)其中3款散熱器的選用過(guò)程。用Solidworks軟件建立光源并采用第一款散熱器的模型,用實(shí)測(cè)結(jié)果對(duì)用工程流體動(dòng)力學(xué)(EFD)熱模擬的結(jié)果進(jìn)行驗(yàn)證。以第一款散熱器的熱阻和光源基板的均溫為散熱基準(zhǔn),對(duì)另兩款散熱器在原尺寸的基礎(chǔ)上按逐步增加0.1倍的方式進(jìn)行整體放大,在達(dá)到散熱基準(zhǔn)時(shí)對(duì)三者進(jìn)行對(duì)比。結(jié)果表明,散熱基準(zhǔn)為熱阻15.20 K/W、基板均溫42.42℃,款式二、款式三散熱器在整體放大1.38倍和1.35倍時(shí)與基準(zhǔn)最為接近,熱阻相差不超過(guò)1.5%、均溫相差不超過(guò)0.1%。此時(shí)三者重量相近,款式三的占據(jù)空間最小,款式二的可操作面積最大。運(yùn)用此方法可對(duì)各種結(jié)構(gòu)樣式的LED散熱器進(jìn)行對(duì)比選用。
[Abstract]:In view of the specific selection of many structural LED radiators, a method of comparison and selection is put forward, which is based on the heat dissipation of a LED light source. The selection process of three radiators is described. The light source is built with Solidworks software and the model of the first radiator is adopted. The results of thermal simulation with engineering fluid dynamics (EFDs) are verified by the measured results. The heat resistance of the first radiator and the average temperature of the light source substrate are taken as the radiating datum. On the basis of the original size, the other two radiators are amplified by a gradual increase of 0.1 times, and compared with each other when the heat dissipation standard is reached. The results show that the heat dissipation standard is 15.20 KW, the average temperature of the substrate is 42.42 鈩，

本文編號(hào)：1673641