日光燈工作原理
工作原(yuan)理是:當開(kai)關(guan)接通(tong)的時(shi)候,電(dian)(dian)(dian)源電(dian)(dian)(dian)壓立即通(tong)過鎮(zhen)流(liu)器(qi)(qi)和燈(deng)管燈(deng)絲(si)加到啟(qi)輝(hui)(hui)器(qi)(qi)的兩(liang)極(ji)。220伏的電(dian)(dian)(dian)壓立即使(shi)啟(qi)輝(hui)(hui)器(qi)(qi)的惰(duo)性(xing)氣(qi)體電(dian)(dian)(dian)離,產生輝(hui)(hui)光(guang)放(fang)電(dian)(dian)(dian)。輝(hui)(hui)光(guang)放(fang)電(dian)(dian)(dian)的熱量(liang)使(shi)雙金屬(shu)片受熱膨脹(zhang),兩(liang)極(ji)接觸。電(dian)(dian)(dian)流(liu)通(tong)過鎮(zhen)流(liu)器(qi)(qi)、啟(qi)輝(hui)(hui)器(qi)(qi)觸極(ji)和兩(liang)端燈(deng)絲(si)構(gou)成通(tong)路。燈(deng)絲(si)很(hen)快被電(dian)(dian)(dian)流(liu)加熱,發射(she)出大量(liang)電(dian)(dian)(dian)子。
這時(shi)(shi),由于(yu)(yu)啟輝器(qi)兩(liang)(liang)極閉合,兩(liang)(liang)極間(jian)電(dian)(dian)(dian)(dian)壓為零,輝光放電(dian)(dian)(dian)(dian)消失,管(guan)(guan)內溫(wen)度降低;雙金屬(shu)片自動復位,兩(liang)(liang)極斷(duan)開(kai)。在兩(liang)(liang)極斷(duan)開(kai)的(de)(de)瞬(shun)間(jian),電(dian)(dian)(dian)(dian)路(lu)電(dian)(dian)(dian)(dian)流突然(ran)切斷(duan),鎮流器(qi)產生很大(da)的(de)(de)自感電(dian)(dian)(dian)(dian)動勢,與電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓疊加(jia)后作用于(yu)(yu)管(guan)(guan)兩(liang)(liang)端。燈絲受熱時(shi)(shi)發射出來的(de)(de)大(da)量電(dian)(dian)(dian)(dian)子,在燈管(guan)(guan)兩(liang)(liang)端高電(dian)(dian)(dian)(dian)壓作用下,以極大(da)的(de)(de)速(su)度由低電(dian)(dian)(dian)(dian)勢端向高電(dian)(dian)(dian)(dian)勢端運動。
在(zai)加速(su)運動的(de)(de)過程中,碰撞(zhuang)管內氬(ya)氣分子,使之(zhi)迅速(su)電離。氬(ya)氣電離生熱(re),熱(re)量使水(shui)銀產生蒸氣,隨之(zhi)水(shui)銀蒸氣也(ye)被(bei)電離,并發出強(qiang)烈的(de)(de)紫(zi)外(wai)線。在(zai)紫(zi)外(wai)線的(de)(de)激發下,管壁(bi)內的(de)(de)熒光(guang)(guang)粉發出近乎白色(se)的(de)(de)可見(jian)光(guang)(guang)。
日光燈(deng)正(zheng)常(chang)發光后。由于交流(liu)(liu)電(dian)不(bu)斷通過鎮(zhen)流(liu)(liu)器(qi)的線(xian)圈,線(xian)圈中產生自感電(dian)動勢,自感電(dian)動勢阻(zu)礙線(xian)圈中的電(dian)流(liu)(liu)變化,這(zhe)時鎮(zhen)流(liu)(liu)器(qi)起降壓(ya)限流(liu)(liu)的作(zuo)用,使電(dian)流(liu)(liu)穩(wen)定在(zai)(zai)燈(deng)管(guan)的額(e)定電(dian)流(liu)(liu)范圍內(nei),燈(deng)管(guan)兩端(duan)電(dian)壓(ya)也穩(wen)定在(zai)(zai)額(e)定工(gong)作(zuo)電(dian)壓(ya)范圍內(nei)。由于這(zhe)個電(dian)壓(ya)低于啟輝器(qi)的電(dian)離電(dian)壓(ya),所以并聯在(zai)(zai)兩端(duan)的啟輝器(qi)也就(jiu)不(bu)再起作(zuo)用了。
LED日光燈與普通日光燈是一樣的嗎
1、普(pu)通(tong)日光(guang)燈:日光(guang)燈兩端(duan)各有一燈絲,燈管(guan)內充(chong)有微量的(de)氬和稀薄(bo)的(de)汞蒸氣(qi),燈管(guan)內壁上涂有螢(ying)光(guang)粉,兩個燈絲之(zhi)間的(de)氣(qi)體導(dao)電時發(fa)出紫外線(xian),使螢(ying)光(guang)粉發(fa)出柔和的(de)可見光(guang)。
普通日光燈(deng)工作(zuo)特點:燈(deng)管(guan)開始點燃時(shi)(shi)需要(yao)一個高電(dian)(dian)壓,正常發光時(shi)(shi)只(zhi)允許通過不大的電(dian)(dian)流,這時(shi)(shi)燈(deng)管(guan)兩端的電(dian)(dian)壓低于電(dian)(dian)源電(dian)(dian)壓。
2、LED日光(guang)(guang)燈管:led日光(guang)(guang)燈以質優、耐用(yong)、節能為主要特點(dian),投(tou)射角度調節范(fan)圍(wei)大,15W的亮度相當(dang)于(yu)普通40W日光(guang)(guang)燈。抗高溫、防潮防水、防漏(lou)電。使(shi)用(yong)電壓(ya)有:110V、220V可(ke)選,外(wai)罩(zhao)可(ke)選玻璃或PC材質。燈頭與普通日光(guang)(guang)燈一樣。
LED日(ri)光(guang)(guang)(guang)(guang)燈(deng)管(guan)采用(yong)最新的(de)(de)(de)LED光(guang)(guang)(guang)(guang)源技(ji)術(shu),數位(wei)化外觀設(she)(she)計(ji),節(jie)電(dian)高達70%以(yi)上,12W的(de)(de)(de)LED日(ri)光(guang)(guang)(guang)(guang)燈(deng)光(guang)(guang)(guang)(guang)強相當于(yu)40W的(de)(de)(de)日(ri)光(guang)(guang)(guang)(guang)燈(deng)管(guan)(用(yong)于(yu)鎮流器(qi)和啟輝器(qi),36W的(de)(de)(de)日(ri)光(guang)(guang)(guang)(guang)燈(deng)真正的(de)(de)(de)耗電(dian)量(liang)為(wei)42W至44W)。LED日(ri)光(guang)(guang)(guang)(guang)燈(deng)壽命為(wei)普通燈(deng)管(guan)的(de)(de)(de)10倍以(yi)上,幾(ji)乎(hu)免維護,無須(xu)經常更換燈(deng)管(guan)、鎮流器(qi)、啟輝器(qi)。綠色(se)環保(bao)的(de)(de)(de)半導體電(dian)光(guang)(guang)(guang)(guang)源,光(guang)(guang)(guang)(guang)線(xian)柔(rou)和,光(guang)(guang)(guang)(guang)譜(pu)純,有利于(yu)使用(yong)者的(de)(de)(de)視力(li)保(bao)護及身體健康。6000K的(de)(de)(de)冷光(guang)(guang)(guang)(guang)源給(gei)人(ren)視覺上清涼的(de)(de)(de)感受,人(ren)性化的(de)(de)(de)照度差異設(she)(she)計(ji),更有助于(yu)集中精神,提高效率(lv)。
3、LED日光燈管的優點:
1.節能,16W相當于普通日光燈(deng)40W的亮(liang)度,節能率達到60%以上。
2.壽(shou)命長,正常可以用50000H小時,質保(bao)3年。
3.適(shi)用性好,因單顆LED的體(ti)積小,可以做(zuo)成任何(he)形狀。
4.回(hui)應(ying)(ying)時間(jian)短,是ns(納秒(miao))級別的(de)回(hui)應(ying)(ying)時間(jian),而普通燈具是ms(毫秒(miao))級別的(de)回(hui)應(ying)(ying)時間(jian)。
5.環保,無有(you)害金(jin)屬,廢棄(qi)物(wu)容易回收(shou)。
6.色彩絢麗(li),發光(guang)色彩純正,光(guang)譜(pu)范圍窄,并能通(tong)過紅綠藍三基色混色成七彩或者白光(guang)。
LED日光燈管使用注意事項
LED日光燈管一定要做好防水措(cuo)施,避(bi)免潮濕(shi)空(kong)氣進入(ru)難以(yi)排出,長期(qi)腐蝕里(li)面的電氣元件,還可能(neng)造成(cheng)短(duan)路(lu),損壞里(li)面的電氣元件,或會引起(qi)火災。