茄子视频APP官网

施能百科

處理充電機突然停電的方法

2020/3/24 16:48:54??????點擊:

 當(dang)蓄(xu)電(dian)池(chi)(chi)充(chong)足(zu)電(dian)后,充(chong)電(dian)機必須(xu)適時地切斷(duan)充(chong)電(dian)電(dian)流,否則蓄(xu)電(dian)池(chi)(chi)將出現大量出氣、失(shi)水和(he)溫(wen)升等過充(chong)反(fan)應(ying),直接(jie)危及蓄(xu)電(dian)池(chi)(chi)的使用壽命(ming)。因此,必須(xu)隨時監測蓄(xu)電(dian)池(chi)(chi)的充(chong)電(dian)狀況,保(bao)證電(dian)池(chi)(chi)充(chong)足(zu)電(dian)而又不過充(chong)電(dian)。主要的停充(chong)控制(zhi)方(fang)法有(you):

(1)定(ding)(ding)(ding)時(shi)控制采用(yong)恒流充(chong)(chong)電(dian)(dian)法(fa)時(shi),電(dian)(dian)池(chi)所需充(chong)(chong)電(dian)(dian)時(shi)間(jian)可(ke)根(gen)據電(dian)(dian)池(chi)容(rong)量和充(chong)(chong)電(dian)(dian)電(dian)(dian)流的(de)大小很容(rong)易地確定(ding)(ding)(ding),因此只(zhi)要預(yu)先(xian)設定(ding)(ding)(ding)好充(chong)(chong)電(dian)(dian)時(shi)間(jian),一(yi)(yi)旦(dan)時(shi)間(jian)一(yi)(yi)到,定(ding)(ding)(ding)時(shi)器(qi)(qi)即(ji)可(ke)發出信(xin)號(hao)停充(chong)(chong)或降為(wei)涓流充(chong)(chong)電(dian)(dian)。定(ding)(ding)(ding)時(shi)器(qi)(qi)可(ke)由(you)(you)時(shi)間(jian)繼電(dian)(dian)器(qi)(qi)充(chong)(chong)當(dang),或者由(you)(you)單片機(ji)承擔其功能。這種(zhong)方法(fa)簡(jian)單,但充(chong)(chong)電(dian)(dian)時(shi)間(jian)不能根(gen)據電(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)前狀態而自動調整,因此實際充(chong)(chong)電(dian)(dian)時(shi),可(ke)能會出現(xian)有時(shi)欠充(chong)(chong)、有時(shi)過充(chong)(chong)的(de)現(xian)象;

(2)電池(chi)(chi)溫(wen)(wen)度(du)(du)控制(zhi)對Ni-cd電池(chi)(chi)而言,正常(chang)(chang)充(chong)電時(shi),蓄電池(chi)(chi)的(de)(de)溫(wen)(wen)度(du)(du)變化并不明顯(xian),但是,當電池(chi)(chi)過充(chong)時(shi),其內部氣體壓力將迅速(su)增(zeng)大,負極板上氧(yang)化反(fan)應(ying)使內部發熱,溫(wen)(wen)度(du)(du)迅速(su)上升(sheng)(每分鐘可升(sheng)高幾個攝氏度(du)(du))。因(yin)此,觀察電池(chi)(chi)溫(wen)(wen)度(du)(du)的(de)(de)變化,即(ji)可判(pan)斷(duan)電池(chi)(chi)是否已經充(chong)滿(man)。通常(chang)(chang)采用(yong)兩(liang)只熱敏電阻(zu)分別(bie)檢(jian)(jian)測(ce)(ce)電池(chi)(chi)溫(wen)(wen)度(du)(du)和(he)環境(jing)溫(wen)(wen)度(du)(du),當兩(liang)者溫(wen)(wen)差達到(dao)一定值時(shi),即(ji)發出停充(chong)信號。由于熱敏電阻(zu)動(dong)態響應(ying)速(su)度(du)(du)較慢,故(gu)不能及(ji)時(shi)準確地檢(jian)(jian)測(ce)(ce)到(dao)電池(chi)(chi)的(de)(de)滿(man)充(chong)狀態;

(3)電(dian)池端電(dian)壓(ya)負(fu)增(zeng)量(liang)控(kong)(kong)制(zhi)(zhi)一般(ban)而言(yan),當(dang)電(dian)池充(chong)(chong)(chong)足電(dian)后,其(qi)端電(dian)壓(ya)將(jiang)呈現下降(jiang)趨勢,據此可將(jiang)電(dian)池電(dian)壓(ya)出現負(fu)增(zeng)長的(de)時(shi)刻(ke)(ke)作為停(ting)(ting)充(chong)(chong)(chong)時(shi)刻(ke)(ke)。與溫度控(kong)(kong)制(zhi)(zhi)法(fa)相比,這種(zhong)方法(fa)響應(ying)速(su)度快,此外,電(dian)壓(ya)的(de)負(fu)增(zeng)量(liang)與電(dian)壓(ya)的(de)絕對值無(wu)關,因此這種(zhong)停(ting)(ting)充(chong)(chong)(chong)控(kong)(kong)制(zhi)(zhi)方法(fa)可適應(ying)具有不同單格電(dian)池數的(de)蓄電(dian)池組(zu)充(chong)(chong)(chong)電(dian)。此方法(fa)的(de)缺點是一般(ban)的(de)檢測器靈敏度和(he)可靠性不高,同時(shi),當(dang)環境(jing)溫度較高時(shi),電(dian)池充(chong)(chong)(chong)足電(dian)后電(dian)壓(ya)的(de)減小并不明(ming)顯,因而難以控(kong)(kong)制(zhi)(zhi)。

公司概況 - 公司產品 - 熱點新聞
lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址 lutube-lutube下载-lutube下载地址-lutube最新地址