LED燈珠靜電預防 |
發布時間:2022-10-04 12:30:50 |
大家好我(wo)是小編燈(deng)(deng)(deng)漂(piao)亮(liang)今天我(wo)們來介紹LED燈(deng)(deng)(deng)珠(zhu)靜(jing)電(dian)預防(fang) led燈(deng)(deng)(deng)靜(jing)電(dian)要求的問(wen)題(ti),以下(xia)就是燈(deng)(deng)(deng)漂(piao)亮(liang)對此問(wen)題(ti)和相關問(wen)題(ti)的歸納整理,一起來看看吧(ba)。 文章目錄導航: led燈外殼帶電正常嗎 1、封(feng)裝膠體老(lao)化(hua)、因長時間使用過熱(re)導(dao)致(zhi)封(feng)裝膠體老(lao)化(hua)從(cong)而造成的(de)(de)漏(lou)電現象(xiang)是正(zheng)常情況,但是這種情況的(de)(de)幾率很小,因為現在的(de)(de)LED燈珠封(feng)裝工(gong)藝相對來說比較成熟了,且專用的(de)(de)樹脂橡(xiang)膠也具備良好的(de)(de)保護性。 2、靜電(dian)損(sun)壞,很多廠家(jia)一直強調防靜電(dian)保(bao)護,其主(zhu)要目的就在于(yu)保(bao)護LED燈(deng)珠(zhu)使(shi)用過(guo)程(cheng)中(zhong)因為靜電(dian)的緣故造成漏(lou)電(dian),所(suo)以在包裝(zhuang)上(shang)廠家(jia)一般都采用防靜電(dian)鋁薄(bo)袋。 3、晶片本身漏電(dian),發光晶片本身漏電(dian)有很多(duo)原(yuan)因(yin),廠家出廠前都有嚴格的檢測,所(suo)以幾率很小(xiao),除此之(zhi)外就是使用過程中(zhong)的其他原(yuan)因(yin)造成晶片漏電(dian)。 4、使(shi)用操作(zuo)不當造(zao)成的漏(lou)電,這(zhe)種(zhong)情況是最(zui)多(duo)的,但是具體原(yuan)因(yin)也是各種(zhong)因(yin)素引起(qi)的。 led燈靜電要求 對于整(zheng)個過(guo)程(生產、測(ce)試、包裝等),所有與(yu)LED直接接觸的(de)員(yuan)工都必須采取(qu)防靜電措施。措施,主要以(yi)下幾點(dian): 1、鋪設防靜電地板并將車間接地。 2、工(gong)作(zuo)臺(tai)是防靜電工(gong)作(zuo)臺(tai)。生(sheng)產機(ji)器(qi)已正確(que)接地。3、操作(zuo)員穿著(zhu)防靜電服(fu)、,帶防靜電腕帶、手套或腳環。 4、離子風扇的應(ying)用。 5、焊接電(dian)烙鐵(tie)以(yi)采(cai)取適當的接地措(cuo)施(shi)。 6、包裝使(shi)用抗靜電材料。7、在使(shi)用過程中,請勿觸摸(mo)燈頭(tou)或在燈頭(tou)上施加外(wai)力(li),以防止燈頭(tou)被擠壓并(bing)導致產品(pin)故障 LED靜電如何防護 這幾年來(lai),LED拼(pin)接(jie)(jie)屏(ping)生產(chan)技術在我國漸(jian)趨(qu)成(cheng)熟,應用領域逐漸(jian)廣泛及普及成(cheng)為趨(qu)勢。但目前大多數(shu)的制造商(shang)完(wan)全(quan)沒有(you)防護(hu)靜(jing)電(dian)的措施,從(cong)而給(gei)LED拼(pin)接(jie)(jie)屏(ping)產(chan)品帶來(lai)了隱患,以至(zhi)影響(xiang)到(dao)整個市(shi)場,防靜(jing)電(dian)就是(shi)其中(zhong)之一。 靜(jing)(jing)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)產(chan)(chan)生一般常見是(shi)(shi)摩(mo)擦起電(dian)(dian)(dian)(dian)和人體(ti)靜(jing)(jing)電(dian)(dian)(dian)(dian),而(er)(er)這(zhe)兩(liang)種恰恰是(shi)(shi)電(dian)(dian)(dian)(dian)子(zi)(zi)、微(wei)電(dian)(dian)(dian)(dian)子(zi)(zi)工(gong)業中的(de)(de)(de)(de)(de)兩(liang)大(da)危(wei)害(hai)源,危(wei)害(hai)在(zai)于靜(jing)(jing)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)荷的(de)(de)(de)(de)(de)積累及(ji)由(you)此(ci)(ci)產(chan)(chan)生的(de)(de)(de)(de)(de)靜(jing)(jing)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)荷放電(dian)(dian)(dian)(dian)現象,燒毀或者擊穿電(dian)(dian)(dian)(dian)子(zi)(zi)元(yuan)(yuan)器(qi)件(jian)(jian),造成(cheng)產(chan)(chan)品(pin)次品(pin)率(lv)高,放電(dian)(dian)(dian)(dian)火(huo)花引發火(huo)災等,因此(ci)(ci)必須(xu)予以控制。電(dian)(dian)(dian)(dian)子(zi)(zi)產(chan)(chan)品(pin)在(zai)生產(chan)(chan)過程中,其元(yuan)(yuan)器(qi)件(jian)(jian)、組件(jian)(jian)成(cheng)品(pin)經常與設備(bei)工(gong)具等發生接觸、分(fen)離,磨(mo)擦而(er)(er)產(chan)(chan)生靜(jing)(jing)電(dian)(dian)(dian)(dian),必須(xu)使(shi)(shi)用(yong)防(fang)靜(jing)(jing)電(dian)(dian)(dian)(dian)坐墊(dian)、周轉(zhuan)(zhuan)小車、維修(xiu)包(bao)(bao)、工(gong)具、工(gong)作椅(凳(deng))等,并(bing)通過適當的(de)(de)(de)(de)(de)接地(di),使(shi)(shi)靜(jing)(jing)電(dian)(dian)(dian)(dian)迅(xun)速泄放。靜(jing)(jing)電(dian)(dian)(dian)(dian)敏感元(yuan)(yuan)器(qi)件(jian)(jian)和印(yin)制電(dian)(dian)(dian)(dian)路(lu)板在(zai)生產(chan)(chan)過程中工(gong)序之間的(de)(de)(de)(de)(de)傳遞和儲放,必須(xu)使(shi)(shi)用(yong)防(fang)靜(jing)(jing)電(dian)(dian)(dian)(dian)上(shang)料箱、元(yuan)(yuan)件(jian)(jian)盒(he)、周轉(zhuan)(zhuan)箱、周轉(zhuan)(zhuan)托盤(pan)等。以防(fang)止(zhi)靜(jing)(jing)電(dian)(dian)(dian)(dian)積累造成(cheng)危(wei)害(hai)。靜(jing)(jing)電(dian)(dian)(dian)(dian)敏感元(yuan)(yuan)器(qi)件(jian)(jian)和印(yin)制電(dian)(dian)(dian)(dian)路(lu)板,作為成(cheng)品(pin)進行包(bao)(bao)裝(zhuang)時(shi)必須(xu)采(cai)用(yong)防(fang)靜(jing)(jing)電(dian)(dian)(dian)(dian)屏蔽袋、包(bao)(bao)裝(zhuang)袋、包(bao)(bao)裝(zhuang)盒(he)、條、筐等,避免運輸過程中的(de)(de)(de)(de)(de)靜(jing)(jing)電(dian)(dian)(dian)(dian)損(sun)(sun)害(hai)。一個典型的(de)(de)(de)(de)(de)例子(zi)(zi)是(shi)(shi),LED是(shi)(shi)PN結組成(cheng)的(de)(de)(de)(de)(de)二極(ji)管,發射(she)極(ji)與基極(ji)間的(de)(de)(de)(de)(de)擊穿會使(shi)(shi)電(dian)(dian)(dian)(dian)流增(zeng)益急劇(ju)降低。LED本身或者驅(qu)動(dong)電(dian)(dian)(dian)(dian)路(lu)中的(de)(de)(de)(de)(de)各種IC受(shou)到(dao)(dao)靜(jing)(jing)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)影響(xiang)后,也(ye)可(ke)能不立即出現功(gong)能性的(de)(de)(de)(de)(de)損(sun)(sun)壞,這(zhe)些受(shou)到(dao)(dao)潛(qian)在(zai)損(sun)(sun)壞的(de)(de)(de)(de)(de)元(yuan)(yuan)件(jian)(jian)通常在(zai)使(shi)(shi)用(yong)過程中才會表現出來,所以對顯示屏的(de)(de)(de)(de)(de)壽(shou)命影響(xiang)都是(shi)(shi)致命的(de)(de)(de)(de)(de)。 那(nei)么,我們應該如何消(xiao)除靜電隱患呢 以下方法供您參考(kao)。 1:正確接地以泄放靜電。 2:電子器件在包裝及運輸(shu)過程中應該特別重視靜(jing)電防護(hu)。 3:操作或(huo)維修人(ren)(ren)員(yuan)自身靜電處理。作為(wei)操作人(ren)(ren)員(yuan)要時刻牢記(ji)靜電的(de)危(wei)害(hai),盡(jin)量避免觸摸產品(pin)內部(bu)板卡,如果一定(ding)要接觸內部(bu)線路(lu),也要在(zai)手(shou)指上加接地環,以保證有效泄放靜電。 4:工作場所(suo)靜(jing)電(dian)處理(li)。有條件的(de)工作場所(suo)應盡量多的(de)配備防靜(jing)電(dian)硬膠套,防靜(jing)電(dian)寫字板、防靜(jing)電(dian)垃圾桶等,并且保持理(li)想濕(shi)度40%-60%。 5:提(ti)高器件(jian)本身質(zhi)量,減(jian)小靜電損壞程度。 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led封裝中為什么要特別注意靜電防護 LED封(feng)裝生產中,若存在靜(jing)(jing)電(dian)(dian),會存在靜(jing)(jing)電(dian)(dian)放電(dian)(dian)的可(ke)能,只要(yao)100-200v的低靜(jing)(jing)電(dian)(dian)就可(ke)能擊穿LED,造成廢件,并(bing)且(qie)只有到電(dian)(dian)路(lu)檢測時,才能檢測出(chu)來,損失就大了,所以(yi)在電(dian)(dian)子(zi)業做(zuo)好靜(jing)(jing)電(dian)(dian)防(fang)護很(hen)重要(yao),穿戴好防(fang)靜(jing)(jing)電(dian)(dian)服(fu),手腕帶(dai),再使(shi)用2050離子(zi)風扇對著工作臺消(xiao)除靜(jing)(jing)電(dian)(dian),最好防(fang)護工作。 以上就(jiu)是天成小(xiao)編對于LED燈(deng)珠(zhu)靜電預防(fang) led燈(deng)靜電要(yao)求(qiu)問題和相關問題的解答了,希望(wang)對你有用(yong) 【責任編輯:燈(deng)漂亮】 |