led燈珠死燈是什么 led燈珠死燈一定是焊線問題嗎 |
發布時間:2022-11-29 17:00:13 |
大(da)家好我是(shi)天(tian)成照(zhao)明LED燈(deng)(deng)珠(zhu)廠家小編燈(deng)(deng)漂亮今天(tian)我們來介(jie)紹(shao)led燈(deng)(deng)珠(zhu)死(si)燈(deng)(deng)是(shi)什么 led燈(deng)(deng)珠(zhu)死(si)燈(deng)(deng)一定是(shi)焊(han)線(xian)問(wen)題(ti)嗎的問(wen)題(ti),以下就是(shi)燈(deng)(deng)漂亮對此(ci)問(wen)題(ti)和相關問(wen)題(ti)的歸納整理(li),一起來看看吧(ba)。 文章目錄導航: LED燈珠灌膠后死燈的原因 一(yi)(yi)(yi)、究(jiu)其(qi)原因不(bu)外是兩種(zhong)情況(kuang):其(qi)一(yi)(yi)(yi),LED的(de)(de)(de)(de)(de)漏電(dian)(dian)(dian)(dian)流(liu)過大造(zao)成PN結(jie)失(shi)效(xiao),使LED燈(deng)(deng)(deng)(deng)點不(bu)亮,這種(zhong)情況(kuang)一(yi)(yi)(yi)般不(bu)會影(ying)響其(qi)它(ta)(ta)的(de)(de)(de)(de)(de)LED燈(deng)(deng)(deng)(deng)的(de)(de)(de)(de)(de)工(gong)(gong)作(zuo)(zuo)其(qi)二,LED燈(deng)(deng)(deng)(deng)的(de)(de)(de)(de)(de)內部(bu)連(lian)接(jie)引線斷開(kai),造(zao)成LED無電(dian)(dian)(dian)(dian)流(liu)通(tong)過而產生(sheng)死燈(deng)(deng)(deng)(deng),這種(zhong)情況(kuang)會影(ying)響其(qi)它(ta)(ta)的(de)(de)(de)(de)(de)LED燈(deng)(deng)(deng)(deng)的(de)(de)(de)(de)(de)正常工(gong)(gong)作(zuo)(zuo),原因是由于(yu)LED燈(deng)(deng)(deng)(deng)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓低(紅黃橙(cheng)LED工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓1.8V-2.2V,藍綠白LED工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓2.8-3.2V),一(yi)(yi)(yi)般都(dou)要(yao)(yao)(yao)用串、并聯(lian)來聯(lian)接(jie),來適應不(bu)同的(de)(de)(de)(de)(de)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)壓,重(zhong)(zhong)(zhong)慶led顯(xian)示(shi)屏(ping)(ping)串聯(lian)的(de)(de)(de)(de)(de)LED燈(deng)(deng)(deng)(deng)越多影(ying)響越大,只要(yao)(yao)(yao)其(qi)中(zhong)有一(yi)(yi)(yi)個(ge)LED燈(deng)(deng)(deng)(deng)內部(bu)連(lian)線開(kai)路,將(jiang)(jiang)造(zao)成該串聯(lian)電(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)(de)整串LED燈(deng)(deng)(deng)(deng)不(bu)亮,可(ke)見這種(zhong)情況(kuang)比第(di)一(yi)(yi)(yi)種(zhong)情況(kuang)要(yao)(yao)(yao)嚴重(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)多。二、LED死燈(deng)(deng)(deng)(deng)是影(ying)響產品質(zhi)量、可(ke)靠性(xing)的(de)(de)(de)(de)(de)關(guan)健,如何減少和杜絕死燈(deng)(deng)(deng)(deng),提高產品質(zhi)量和可(ke)靠性(xing),是封裝、應用企(qi)業需要(yao)(yao)(yao)解(jie)決(jue)的(de)(de)(de)(de)(de)關(guan)鍵問題。下面是對造(zao)成死燈(deng)(deng)(deng)(deng)的(de)(de)(de)(de)(de)一(yi)(yi)(yi)些(xie)(xie)原因作(zuo)(zuo)一(yi)(yi)(yi)些(xie)(xie)分析探討(tao):靜(jing)(jing)電(dian)(dian)(dian)(dian)對LED芯(xin)片造(zao)成損傷,使LED芯(xin)片的(de)(de)(de)(de)(de)PN結(jie)失(shi)效(xiao),重(zhong)(zhong)(zhong)慶led顯(xian)示(shi)屏(ping)(ping)漏電(dian)(dian)(dian)(dian)流(liu)增大,變成一(yi)(yi)(yi)個(ge)電(dian)(dian)(dian)(dian)阻(zu)(zu)靜(jing)(jing)電(dian)(dian)(dian)(dian)是一(yi)(yi)(yi)種(zhong)危(wei)害(hai)極(ji)大的(de)(de)(de)(de)(de)魔鬼(gui),全世界(jie)因為(wei)靜(jing)(jing)電(dian)(dian)(dian)(dian)損壞(huai)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)子(zi)元器(qi)件不(bu)計其(qi)數,造(zao)成數千萬美(mei)元的(de)(de)(de)(de)(de)經濟損失(shi)。所以防止靜(jing)(jing)電(dian)(dian)(dian)(dian)損壞(huai)電(dian)(dian)(dian)(dian)子(zi)元器(qi)件,是電(dian)(dian)(dian)(dian)子(zi)行業一(yi)(yi)(yi)項很重(zhong)(zhong)(zhong)要(yao)(yao)(yao)的(de)(de)(de)(de)(de)工(gong)(gong)作(zuo)(zuo),LED封裝、應用的(de)(de)(de)(de)(de)企(qi)業千萬不(bu)要(yao)(yao)(yao)掉以輕心。任何一(yi)(yi)(yi)個(ge)環節(jie)出問題,都(dou)將(jiang)(jiang)造(zao)成對LED的(de)(de)(de)(de)(de)損害(hai),使LED性(xing)能變壞(huai)甚(shen)至(zhi)失(shi)效(xiao)。三(san)、我們知道人體(ti)(ESD)靜(jing)(jing)電(dian)(dian)(dian)(dian)可(ke)以達到三(san)千伏左右,足可(ke)以將(jiang)(jiang)LED芯(xin)片擊穿損壞(huai),在LED封裝生(sheng)產線,各類設(she)備的(de)(de)(de)(de)(de)接(jie)地電(dian)(dian)(dian)(dian)阻(zu)(zu)是否(fou)符合(he)要(yao)(yao)(yao)求,這也是很重(zhong)(zhong)(zhong)要(yao)(yao)(yao)的(de)(de)(de)(de)(de),一(yi)(yi)(yi)般要(yao)(yao)(yao)求接(jie)地電(dian)(dian)(dian)(dian)阻(zu)(zu)為(wei)4歐姆,有些(xie)(xie)要(yao)(yao)(yao)求高的(de)(de)(de)(de)(de)場合(he)其(qi)接(jie)地電(dian)(dian)(dian)(dian)阻(zu)(zu)甚(shen)至(zhi)要(yao)(yao)(yao)達到≤2歐姆。 led死燈的常見原因有哪些 1、LED驅動(dong)電源(yuan)和(he)LED光源(yuan)的(de)故障。這類故障幾率最高(gao)(gao)。LED燈(deng)具的(de)毛病多為驅動(dong)電路毛病。LED光源(yuan)本身的(de)封裝品質也會(hui)影響整燈(deng)的(de)壽命,品質好的(de)LED光源(yuan)成(cheng)本較(jiao)(jiao)高(gao)(gao),穩定性能也比較(jiao)(jiao)好。 2、散熱和(he)使(shi)(shi)用(yong)環(huan)境問(wen)題。這與燈(deng)具(ju)本身的(de)設計和(he)使(shi)(shi)用(yong)環(huan)境有(you)關,如果本身設計的(de)散熱不(bu)合理,也會(hui)加速(su)LED燈(deng)死(si)燈(deng)。如果使(shi)(shi)用(yong)的(de)環(huan)境很(hen)惡劣,導致LED燈(deng)具(ju)散熱不(bu)良也會(hui)導致加速(su)燈(deng)具(ju)的(de)故(gu)障(zhang)率。 3、外部供電(dian)(dian)問題。LED抗浪(lang)涌的(de)能(neng)力是比較差(cha)的(de),特別(bie)是抗反向電(dian)(dian)壓能(neng)力。如果外部供電(dian)(dian)電(dian)(dian)壓不穩定(ding),經常(chang)出現高電(dian)(dian)壓的(de)浪(lang)涌,也(ye)會(hui)導致LED燈具(ju)的(de)故(gu)障(zhang)。 LED死紅燈什么原因 1:LED的(de)(de)漏電流過(guo)大造成PN結失效,使LED燈點(dian)不亮,這種情況一般不會影(ying)響其它的(de)(de)LED燈的(de)(de)工作。 2:LED燈(deng)的內(nei)部連接引線斷開,造(zao)(zao)成LED無電(dian)流通(tong)過而(er)產(chan)生死燈(deng),這種(zhong)情況(kuang)會影(ying)(ying)響其它(ta)的LED燈(deng)的正(zheng)常工(gong)作(zuo)(zuo),原因是由于LED燈(deng)工(gong)作(zuo)(zuo)電(dian)壓(ya)低(di)(紅黃橙LED工(gong)作(zuo)(zuo)電(dian)壓(ya)1.8V—2.2V,藍綠(lv)白LED工(gong)作(zuo)(zuo)電(dian)壓(ya)2.8—3.2V),一(yi)般都(dou)要用串(chuan)(chuan)、并(bing)聯(lian)來聯(lian)接,來適應不同的工(gong)作(zuo)(zuo)電(dian)壓(ya),串(chuan)(chuan)聯(lian)的LED燈(deng)越多影(ying)(ying)響越大,只要其中有一(yi)個LED燈(deng)內(nei)部連線開路,將造(zao)(zao)成該串(chuan)(chuan)聯(lian)電(dian)路的整(zheng)串(chuan)(chuan)LED燈(deng)不亮(liang),可見這種(zhong)情況(kuang)比(bi)第一(yi)種(zhong)情況(kuang)要嚴(yan)重的多。 led燈帶死帶是什么意思 LEDled燈(deng)(deng)帶死帶是一(yi)個行業內的(de)名詞,通常就是說(shuo)LED燈(deng)(deng)不亮。 我們經(jing)常會碰到LED不亮的情況,封裝企業(ye)、應用企業(ye)以及(ji)使用的單位(wei)和個(ge)人(ren),都有可能碰到,這就是行業(ye)內(nei)的人(ren)說的死燈現象 LED的(de)漏電流過大造成(cheng)PN結失效,使LED燈(deng)點(dian)不亮(liang),這種情況一般(ban)不會影(ying)響其它的(de)LED燈(deng)的(de)工作 led燈管停電后再來電不亮怎么了 LED燈(deng)(deng)(deng)珠死燈(deng)(deng)(deng)的(de)(de)(de)(de)主要(yao)(yao)有兩(liang)種(zhong)(zhong)(zhong)情(qing)況:其(qi)一(yi),LED的(de)(de)(de)(de)漏電(dian)(dian)(dian)流過大造(zao)成PN結失效(xiao),使LED燈(deng)(deng)(deng)點不亮,這(zhe)種(zhong)(zhong)(zhong)情(qing)況一(yi)般不會影響(xiang)其(qi)它(ta)的(de)(de)(de)(de)LED燈(deng)(deng)(deng)的(de)(de)(de)(de)工(gong)(gong)作(zuo)其(qi)二,LED燈(deng)(deng)(deng)的(de)(de)(de)(de)內部連接引線斷(duan)開,造(zao)成LED無電(dian)(dian)(dian)流通(tong)過而產生死燈(deng)(deng)(deng),這(zhe)種(zhong)(zhong)(zhong)情(qing)況會影響(xiang)其(qi)它(ta)的(de)(de)(de)(de)LED燈(deng)(deng)(deng)的(de)(de)(de)(de)正(zheng)常(chang)工(gong)(gong)作(zuo),原因是(shi)由于LED燈(deng)(deng)(deng)工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓低(di)(紅黃橙LED工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓1.8V-2.2V,藍(lan)綠(lv)白LED工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓2.8-3.2V),一(yi)般都(dou)要(yao)(yao)用串(chuan)、并聯(lian)(lian)(lian)來聯(lian)(lian)(lian)接,來適應不同的(de)(de)(de)(de)工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓,串(chuan)聯(lian)(lian)(lian)的(de)(de)(de)(de)LED燈(deng)(deng)(deng)越多(duo)影響(xiang)越大,只要(yao)(yao)其(qi)中(zhong)有一(yi)個LED燈(deng)(deng)(deng)內部連線開路(lu),將造(zao)成該串(chuan)聯(lian)(lian)(lian)電(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)整串(chuan)LED燈(deng)(deng)(deng)不亮,可見這(zhe)種(zhong)(zhong)(zhong)情(qing)況比第(di)一(yi)種(zhong)(zhong)(zhong)情(qing)況要(yao)(yao)嚴(yan)重的(de)(de)(de)(de)多(duo)。LED死燈(deng)(deng)(deng)是(shi)影響(xiang)產品質量、可靠性的(de)(de)(de)(de)關健,如(ru)何減少和(he)杜絕死燈(deng)(deng)(deng),提高產品質量和(he)可靠性,是(shi)封裝、應用企業需要(yao)(yao)解決的(de)(de)(de)(de)關鍵問(wen)題。 以上就(jiu)是天(tian)成(cheng)小編對(dui)于led燈珠(zhu)死燈是什么 led燈珠(zhu)死燈一定是焊線問題嗎問題和相(xiang)關問題的解答了,希望(wang)對(dui)你有用 【責任編輯:燈漂(piao)亮(liang)】 |