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大功率LED路灯的散热结构实现,昆明晶科照明工程有限公司

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大功率LED路灯的散热结构实现

 

  ZHONGSUOZHOUZHI,LEDGUANGDIANZHUANHUANXIAOLVZHIYUEZAI15%~20%,QIYUDEDIANNENGJIHUQUANBUZHUANHUANCHENGRENENG,YINCIZAILEDCHANPINGONGZUOSHI,JIANGHUICHANSHENGDALIANGDERELIANG。DANGDUOGELEDMIJIPAILIEZUCHENGLUDENGSHI,RELIANGDEJUJIXIAOYINGGENGWEIYANZHONG。RUOBUJIANGCIRELIANGJINKUAISANCHU,SUIZHIERLAIDEREXIAOYINGJIANGFEICHANGMINGXIAN。ZHEIJIANGHUIYINQIXINPIANNEIBURELIANGJUJI,DAOZHIFAGUANGBOZHANGPIAOYI、CHUGUANGXIAOLVXIAJIANG、YINGGUANGFENJIASULAOHUAYIJISHIYONGSHOUMINGSUODUANDENGYIXILIEWENTI。

  BENWENLIYONGYOUXIANYUANFENXIRUANJIANANSYSDUILEDLUDENGJINXINGLEREFENXI,DUIQISANREJIEGOUJINXINGLESHEJIYUYOUHUA,DADAOLEJIANGDIZHIZAOCHENGBENYOUJIAKUAISANREDEXIAOGUO。

  1 SANREQIJIEGOUSHEJIYUJIANMO

  TONGCHANGTIAOJIANXIA,RELIANGDECHUANDIYOU3ZHONGFANGSHI:CHUANDAO、DUILIUHEFUSHE。YINFUSHESANRELIANGFEICHANGXIAO,SUOYIBENWENZHUYAOTAOLUNCHUANDAOHEDUILIU2ZHONGCHUANREFANGSHI。

  ZAILEDLUDENGZHONG,RECHUANDAOZHUYAOBIAOXIANZAIFENGZHUANGJIEGOUYUSANREQIZHONG,ERREDUILIUZHUYAOKAOSANREQILAITIXIAN。YINCI,ZAIDAGONGLVLEDLUDENGZHONG,WAIBUSANREQIDEJIEGOUSHEJIFEICHANGGUANJIAN,ZHIJIEYINGXIANGZHENGGEXITONGDESANRENENGLI。

  在制作LED路灯时,通常将封装好的LED光源焊接在MCPCB上,而后MCPCB与外部的散热器通过采用导热粘合剂以及机械紧固件法等固定在散热器上,如图1所示。热量的主要传输通道为:PN结-Cu柱-MCPCB-散热器-空气(环境)。
 

  SHOUXIAN,GENJUDENGJU、FENGZHUANGGUANGYUANDENGSHIJICHICUN,ZAIYOUXIANYUANMONIFENXIRUANJIANANSYSZHONGJIANLIMOXINGRUXIA。

  ZAICIMOXINGZHONG,KAOLVDAODENGJUCHUANREDEZHUYAOTUJING,HULVELEFENGZHUANGGUANGYUANDEYINJIAODUISANREDEYINGXIANG。TONGSHI,YOUYUFENGZHUANGYONGDEHUANYANGSHUZHIREDAOLVZHIYOU0.2W/mK,ZAIZHEILIZUOJUERECHULI。LINGWAI,JIASHEGEJIECHUMIANJUNWEILIXIANGJIECHUJIEMIAN,JIBUKAOLVJIEMIANREZU。ZAIMONIGUOCHENGZHONG,BIANJIETIAOJIANSHEZHIRUXIA:XINPIANGONGLVWEI1 W,GUANGDIANZHUANHUANXIAOLVSHEZHIWEI15%,YUKONGQIDUILIUXISHUSHEWEI5,SANRETIHEIDUWEI0.5,HUANJINGWENDUWEI25℃。

  2 SANREQICANSHUYOUHUA

  XIANJIN,LEDLUDENGSANRESHEJIZHONGCUNZAIYIXIAWENTI:SANRECHIPIANMIANJISUIYISHEDING;SANRECHIPIANBUZHIFANGSHIBUHELI;DENGJUSANRECHIPIANDEBUZHIMEIYOUKAOLVDAODENGJUDESHIYONGFANGSHI,YINGXIANGDAOCHIPIANXIAOGUODEFAHUI;QIANGDIAORECHUANDAOHUANJIE、HUSHIDUILIUSANREHUANJIE;HUSHICHUANREDEJUNHENGXING。ZHEIZHONGWANGWANGDAOZHILESANREQIZHILIANGPANGDA,QIZHONGYIBUFENCHIPIANMEIYOUFAHUIZUOYONGHUOZUOYONGHENYOUXIAN。

 

 
   

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