2012年12月艦船電子對(duì)抗)ec.2012第35卷第6期SHIPBOARD ELECTRONIC COUNTERMEASUREVol 35 No 6某電子設(shè)備的熱分析董智鼎,李龍(船舶重工集團(tuán)公司723所,揚(yáng)州225001)摘要:熱設(shè)計(jì)在電子設(shè)備結(jié)構(gòu)設(shè)計(jì)中是十分重要的環(huán)節(jié),對(duì)提高電子產(chǎn)品的運(yùn)行穩(wěn)定性具有重要的意義。通過Icepak軟件對(duì)某電子設(shè)備進(jìn)行熱仿真分析,得到了發(fā)熱器件的溫度分布云圖。在此基礎(chǔ)上,通過改進(jìn)方案,將器件最高溫度控制在耐受溫度以下。利用熱仿真軟件可以及時(shí)發(fā)現(xiàn)方案中所存在的問題,在提升設(shè)備品質(zhì)性能的同時(shí),縮短了設(shè)備的研發(fā)周期。關(guān)鍵詞:熱分析;pak軟件;電子設(shè)備中圖分類號(hào):TNo3文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):CN32-1413(2012)060107-03Thermal Analysis of A Certain Electronic EquipmentDONG Zhi-ding, LI Long(The 723 Institute of CSIC, Yangzhou 225001, China)Abstract: The thermal design is a very important tache in the structure design of electronic equipments, and has important meaning to raise the operation stability of the electronic products. Thispaper performs the thermal simulation analysis to a certain electronic equipment through Icepaksoftware, fetches the temperature distribution cloud figure of heat devices, based on which, themaximum temperature of devices is controlled below the tolerance temperature through improvingprogram. The usage of thermal simulation software can find the problems in the program, whichimproves the quality and performance of equipments as well as shortens the development period ofequipments at the same time.Key words: thermal analysis; Icepak software; electronic equipment0引言1物理模型隨著電子封裝技術(shù)水平的不斷提高,電子產(chǎn)品發(fā)熱器件分布在印制板上,總發(fā)熱功率為的外形尺寸越來越小,單位熱流密度也迅速增大。23W,環(huán)境溫度62℃,高溫試驗(yàn)2h,器件最高耐受尋找一條低熱阻的通道將熱量有效地傳導(dǎo)出去,避溫度85℃。設(shè)備外形尺寸為:長(zhǎng)150mm,寬100免積聚則尤為重要1。電子設(shè)備熱設(shè)計(jì)是十分必要mm,高31mm。印制板沿長(zhǎng)度方向水平安裝在設(shè)的環(huán)節(jié),研究散熱方法,改善散熱方式,提高冷卻效備內(nèi),如圖1所示果,對(duì)提高電子產(chǎn)品的運(yùn)行穩(wěn)定性具有十分重要的意義[2)。利用計(jì)算機(jī)仿真技術(shù),應(yīng)用專業(yè)仿真軟件進(jìn)行的熱設(shè)計(jì)及熱分析,可大大減少計(jì)算量,縮短研制周期,降低開發(fā)成本,避免傳統(tǒng)分析時(shí)的大量公式計(jì)算。文中根據(jù)工程實(shí)際,利用 Icepak軟件對(duì)某電中國(guó)煤化工子設(shè)備進(jìn)行熱分析,詳細(xì)介紹了利用 Icepak軟件進(jìn)THCNMHG行熱設(shè)計(jì)仿真的過程3發(fā)熱器件的上表面與安裝面緊貼,為了降低發(fā)收稿日期:2012-07-01中國(guó)煤化工CNMHG中國(guó)煤化工CNMHG