處理蓄電池充電機突然停電的方法
2019/4/18 14:37:44??????點擊：
當(dang)蓄(xu)電(dian)池(chi)充(chong)(chong)(chong)足(zu)電(dian)后，充(chong)(chong)(chong)電(dian)機必須適時地切斷(duan)充(chong)(chong)(chong)電(dian)電(dian)流，否則蓄(xu)電(dian)池(chi)將出(chu)(chu)現大量(liang)出(chu)(chu)氣、失(shi)水和(he)溫升等過充(chong)(chong)(chong)反應(ying)，直接危及蓄(xu)電(dian)池(chi)的使(shi)用壽命。因此，必須隨時監測蓄(xu)電(dian)池(chi)的充(chong)(chong)(chong)電(dian)狀況，保證電(dian)池(chi)充(chong)(chong)(chong)足(zu)電(dian)而又不(bu)過充(chong)(chong)(chong)電(dian)。主要的停充(chong)(chong)(chong)控制方法有：
（1）定(ding)時(shi)控(kong)制采(cai)用(yong)恒流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)法(fa)時(shi)，電(dian)(dian)(dian)池所需充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)可根(gen)據電(dian)(dian)(dian)池容(rong)量和充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)的(de)大(da)小很(hen)容(rong)易(yi)地確定(ding)，因(yin)此只(zhi)要預(yu)先(xian)設(she)定(ding)好充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)，一旦時(shi)間(jian)(jian)一到(dao)，定(ding)時(shi)器(qi)即可發(fa)出信號停充(chong)(chong)(chong)(chong)或降為涓(juan)流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)。定(ding)時(shi)器(qi)可由時(shi)間(jian)(jian)繼電(dian)(dian)(dian)器(qi)充(chong)(chong)(chong)(chong)當，或者由單片機承(cheng)擔其功能。這種方法(fa)簡單，但充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)不能根(gen)據電(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)前狀態(tai)而自動調整，因(yin)此實(shi)際充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)，可能會(hui)出現有時(shi)欠充(chong)(chong)(chong)(chong)、有時(shi)過充(chong)(chong)(chong)(chong)的(de)現象；
（2）電池(chi)溫(wen)(wen)度(du)(du)控制(zhi)對(dui)Ni-cd電池(chi)而言，正常充電時，蓄電池(chi)的(de)溫(wen)(wen)度(du)(du)變(bian)化(hua)并不(bu)明(ming)顯，但(dan)是，當電池(chi)過充時，其內(nei)部(bu)氣體(ti)壓力(li)將迅速增大，負(fu)極板上氧化(hua)反應使(shi)內(nei)部(bu)發熱(re)(re)，溫(wen)(wen)度(du)(du)迅速上升（每分鐘可(ke)升高幾(ji)個攝氏度(du)(du)）。因此，觀察電池(chi)溫(wen)(wen)度(du)(du)的(de)變(bian)化(hua)，即可(ke)判斷電池(chi)是否已經充滿。通常采(cai)用兩只熱(re)(re)敏電阻分別檢測(ce)電池(chi)溫(wen)(wen)度(du)(du)和(he)環境溫(wen)(wen)度(du)(du)，當兩者溫(wen)(wen)差達到一定值時，即發出停充信號(hao)。由(you)于熱(re)(re)敏電阻動態(tai)響(xiang)應速度(du)(du)較慢，故不(bu)能及(ji)時準(zhun)確地檢測(ce)到電池(chi)的(de)滿充狀態(tai)；
（3）電池端電壓負增量控制一般而言，當電池充足電后，其端電壓將呈現下降趨勢，據此可將電池電壓出現負增長的時刻作為停充時刻。與溫度控制法相比，這種方法響應速度快，此外，電壓的負增量與電壓的絕對值無關，因此這種停充控制方法可適應具有不同單格電池數的蓄電池組充電。此方法的缺點是一般的檢測器靈敏度和可靠性不高，同時，當環境溫度較高時，電池充足電后電壓的減小并不明顯，因而難以控制。上海施能電器設備(bei)有(you)限公司始建于1984年，上海市高新技術企業，中國工業車輛優秀配套供應商，上海電器行業名優產品，主要生產工頻系列充電機，高頻系列充電機，鋰電池充電機，系列放電機，系列充放電機等電器產品。
（1）定(ding)時(shi)控(kong)制采(cai)用(yong)恒流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)法(fa)時(shi)，電(dian)(dian)(dian)池所需充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)可根(gen)據電(dian)(dian)(dian)池容(rong)量和充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)的(de)大(da)小很(hen)容(rong)易(yi)地確定(ding)，因(yin)此只(zhi)要預(yu)先(xian)設(she)定(ding)好充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)，一旦時(shi)間(jian)(jian)一到(dao)，定(ding)時(shi)器(qi)即可發(fa)出信號停充(chong)(chong)(chong)(chong)或降為涓(juan)流(liu)(liu)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)。定(ding)時(shi)器(qi)可由時(shi)間(jian)(jian)繼電(dian)(dian)(dian)器(qi)充(chong)(chong)(chong)(chong)當，或者由單片機承(cheng)擔其功能。這種方法(fa)簡單，但充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)間(jian)(jian)不能根(gen)據電(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)前狀態(tai)而自動調整，因(yin)此實(shi)際充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)，可能會(hui)出現有時(shi)欠充(chong)(chong)(chong)(chong)、有時(shi)過充(chong)(chong)(chong)(chong)的(de)現象；
（2）電池(chi)溫(wen)(wen)度(du)(du)控制(zhi)對(dui)Ni-cd電池(chi)而言，正常充電時，蓄電池(chi)的(de)溫(wen)(wen)度(du)(du)變(bian)化(hua)并不(bu)明(ming)顯，但(dan)是，當電池(chi)過充時，其內(nei)部(bu)氣體(ti)壓力(li)將迅速增大，負(fu)極板上氧化(hua)反應使(shi)內(nei)部(bu)發熱(re)(re)，溫(wen)(wen)度(du)(du)迅速上升（每分鐘可(ke)升高幾(ji)個攝氏度(du)(du)）。因此，觀察電池(chi)溫(wen)(wen)度(du)(du)的(de)變(bian)化(hua)，即可(ke)判斷電池(chi)是否已經充滿。通常采(cai)用兩只熱(re)(re)敏電阻分別檢測(ce)電池(chi)溫(wen)(wen)度(du)(du)和(he)環境溫(wen)(wen)度(du)(du)，當兩者溫(wen)(wen)差達到一定值時，即發出停充信號(hao)。由(you)于熱(re)(re)敏電阻動態(tai)響(xiang)應速度(du)(du)較慢，故不(bu)能及(ji)時準(zhun)確地檢測(ce)到電池(chi)的(de)滿充狀態(tai)；
（3）電池端電壓負增量控制一般而言，當電池充足電后，其端電壓將呈現下降趨勢，據此可將電池電壓出現負增長的時刻作為停充時刻。與溫度控制法相比，這種方法響應速度快，此外，電壓的負增量與電壓的絕對值無關，因此這種停充控制方法可適應具有不同單格電池數的蓄電池組充電。此方法的缺點是一般的檢測器靈敏度和可靠性不高，同時，當環境溫度較高時，電池充足電后電壓的減小并不明顯，因而難以控制。上海施能電器設備(bei)有(you)限公司始建于1984年，上海市高新技術企業，中國工業車輛優秀配套供應商，上海電器行業名優產品，主要生產工頻系列充電機，高頻系列充電機，鋰電池充電機，系列放電機，系列充放電機等電器產品。
- 上一篇：并聯均流平衡大功率充電機負載電流分配 2019/4/19
- 下一篇：智能充電機的充電方式 2019/4/18