散熱性能差異的原因

dagonglvdemokuaidianyuantongchangdegongzuoyunxingguochengzhong，rongyichuxianmokuaiwenduguogaofaredeqingkuang，yincizaiyanfaguochengzhongnengfouduisanrexingnengtigongyouxiaobaozhangjiuchengweilebaizaiyanfabumenmianqiandezhongyaowentizhiyi

，xuanyongheshidesanreqiyejiuchengweileyanfaguochengzhongdezhongzhongzhizhong。name
，dagonglvde電源模塊散熱性能為什麼會出現較大的差異


？散熱器的選擇對於散熱效果都有哪些影響呢？

首shou先xian
，散san熱re器qi翅chi片pian長chang度du會hui造zao成cheng散san熱re性xing能neng的de差cha異yi問wen題ti。在zai研yan發fa過guo程cheng中zhong

，適shi當dang增zeng加jia散san熱re器qi的de翅chi片pian長chang度du適shi可ke以yi有you效xiao減jian小xiao電dian源yuan模mo塊kuai的de器qi件jian結jie溫wen

，但dan是shi過guo分fen增zeng加jia翅chi片pian長chang度du並bing不bu能neng確que保bao熱re量liang傳chuan導dao至zhi散san熱re器qi翅chi片pian的de末mo端duan

，反fan而er使shi散san熱re器qi重zhong量liang增zeng加jia太tai多duo。一yi般ban認ren為wei，散san熱re器qi的de翅chi片pian程cheng度du和he基ji座zuo寬kuan度du比bi例li接jie近jin1時
，傳熱效果較好。

zaizhe，sanreqichipianhoududexuanzeyetongyanghuiyingxiangmokuaidesanrexingneng。zaizhengchangyunxingdeqingkuangxia，youyudaorezhuyaoshiyanzhedianyuanmokuaidesanreqichipianzongxiangfangxiangchuandi，yinerchipiandehoududuiyusanreqirexingnengmeiyoutaidadeyingxiang，chipianhoududezengjiabingmeiyoushireyuanjiewenjiangdihenduo，fanerzengjialesanreqidezhongliang。weilebaozhengsanreqichipiandeyingduqieyiyujiagong

，chipianyingdubunengtaibo，gongchengshangyibanhuijiangsanreqichipiandehouduguidingzai≥1mm左右。

除(chu)了(le)上(shang)麵(mian)提(ti)到(dao)的(de)兩(liang)點(dian)之(zhi)外(wai)
，散(san)熱(re)器(qi)翅(chi)片(pian)個(ge)數(shu)也(ye)同(tong)樣(yang)會(hui)影(ying)響(xiang)到(dao)模(mo)塊(kuai)電(dian)源(yuan)的(de)散(san)熱(re)性(xing)能(neng)。在(zai)模(mo)塊(kuai)正(zheng)常(chang)工(gong)作(zuo)的(de)前(qian)提(ti)下(xia)，隨(sui)著(zhe)翅(chi)片(pian)數(shu)目(mu)的(de)增(zeng)多(duo)，熱(re)源(yuan)結(jie)溫(wen)會(hui)有(you)所(suo)降(jiang)低(di)。但(dan)是(shi)超(chao)過(guo)某(mou)一(yi)數(shu)值(zhi)之(zhi)後(hou)，隨(sui)著(zhe)翅(chi)片(pian)的(de)增(zeng)多(duo)，器(qi)件(jian)結(jie)溫(wen)不(bu)但(dan)沒(mei)有(you)明(ming)顯(xian)變(bian)化(hua)反(fan)而(er)散(san)熱(re)器(qi)的(de)重(zhong)量(liang)會(hui)明(ming)顯(xian)增(zeng)加(jia)。同(tong)時(shi)，翅(chi)片(pian)數(shu)目(mu)增(zeng)加(jia)有(you)時(shi)還(hai)要(yao)考(kao)慮(lv)器(qi)件(jian)安(an)裝(zhuang)的(de)問(wen)題(ti)，有(you)的(de)器(qi)件(jian)安(an)裝(zhuang)在(zai)散(san)熱(re)器(qi)兩(liang)翅(chi)片(pian)之(zhi)間(jian)，如(ru)果(guo)翅(chi)片(pian)數(shu)太(tai)多(duo)，器(qi)件(jian)是(shi)不(bu)容(rong)易(yi)安(an)裝(zhuang)在(zai)散(san)熱(re)器(qi)上(shang)的(de)
，因(yin)而(er)工(gong)程(cheng)師(shi)千(qian)萬(wan)不(bu)能(neng)盲(mang)目(mu)增(zeng)加(jia)翅(chi)片(pian)的(de)數(shu)目(mu)。

風機選擇對散熱的影響

dagonglvdemokuaidianyuanyouyuchangshijianchuyugaogonglvyunxingzhuangtaizhong，yinciduiyumokuaisanredeyaoqiuyaobiputongdedianyuanmokuaigenggao。zaishejizhong，gongchengshichangchanghuixuanzezengjiasanreqihuogaijinfengzhuangxingshidengfangshi
，tishengdianyuanmokuaidesanrexingneng，erzengzhuangfengjiyetongyangshiyizhongbijiaoyouxiaosanredefangshi。name，xuanzeshenmefengliangdefengji
、如何設置風機才能有效散熱呢？

zaidagonglvdemokuaidianyuangongzuoguochengzhong，qixitongzhongdefengjifengliangshiyingxiangdianyuansanrexiaoguodezhuyaoyinsuzhiyi。zaijinxingxinchanpinshejideguochengzhong，gongchengshiduiyufengliangdexuanzexuyaoyijudianzishebeiyuanqijianfachuderegonglvdedaxiaolaiqueding。erweilebaozhengdianzishebeidezhengchanggongzuo，tongchangqingkuangxiakongqichukoudewenduyibuchaoguo70攝氏度為最佳。

zaijinxingfengjideshezhishi，gongchengshiyetongyangshixuyaozaixijisuande。zaidianyuanmokuaijinxingsanredeguochengzhong，youyuzhengjidefengliangshoufengdaojingyadeyingxiang，suoshezhidefengjibukenenggongzuozaizuidafengliangchu，yinci
，fengjitexingquxianhefengdaotexingquxiandejiaodianjiushifengjidezuijiagongzuodian
，zhegejiaodianshixuyaogongchengshizaixiyijugongshijinxingjisuan。danshixuyaozhuyideyidianshi，zaidianyuanmokuaideshejiguochengzhong，fengjidexuanzebingbushifengliangyuedayuehao
，ershixuyaozonghekaolvshebeidetijifengzhuang、能耗以及噪音、振動等問題。

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