一、充電手電筒充不進電是為什么
電池壞了,一般市(shi)面上的led手電(dian)(dian)筒的電(dian)(dian)池都是鉛酸電(dian)(dian)池。充電(dian)(dian)電(dian)(dian)路都是工頻變壓器加(jia)簡單整流(liu),或是串(chuan)塑膠電(dian)(dian)容限流(liu)整流(liu)。
致命的缺(que)點是(shi)不(bu)能(neng)充(chong)滿后(hou)自動停充(chong),也不(bu)能(neng)恒流限壓。幾(ji)次長時間充(chong)電就把電池充(chong)報廢了。
充電(dian)(dian)(dian)(dian)時間太短的話也會造成電(dian)(dian)(dian)(dian)池欠充,極板硫(liu)化損壞。還有就是(shi)沒(mei)有虧電(dian)(dian)(dian)(dian)檢測電(dian)(dian)(dian)(dian)路(lu),電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)量放完不能自動(dong)切斷電(dian)(dian)(dian)(dian)源造成電(dian)(dian)(dian)(dian)池過放電(dian)(dian)(dian)(dian)損壞。
好(hao)的手電(dian)筒是鋰電(dian)池,充電(dian)器、LED驅動電(dian)路有CB等安規(gui)環保認證。
二、充電手電筒常見故障
1、手電筒電路斷路
內(nei)部接線(xian)斷路、插頭內(nei)部黃(huang)銅彈簧導電片變形,找到(dao)斷線(xian)部分(fen)接通或彈簧片變形整形。
2、充(chong)電電路電子元件損壞(huai)
檢查降壓電容(rong)、整流二(er)極管。更換損壞元件。
3、充電電池(chi)失(shi)效
一種是鉛酸電(dian)池,電(dian)池極板(ban)容易老(lao)化。清洗極板(ban),更換蒸餾水(shui)(或純凈水(shui),效(xiao)果差些(xie)。)。部(bu)分可(ke)以修復。
另一種(zhong)采用鎳(nie)氫電(dian)(dian)池(chi),或鎘鎳(nie)電(dian)(dian)池(chi)。這一類電(dian)(dian)池(chi)有(you)可能(neng)壽命未到(dao)期,但因記憶(yi)效(xiao)應(ying)而(er)充(chong)(chong)(chong)不進(jin)電(dian)(dian),這種(zhong)情況多為使用時未充(chong)(chong)(chong)分充(chong)(chong)(chong)、放(fang)電(dian)(dian)造成。這時可對電(dian)(dian)池(chi)放(fang)電(dian)(dian),需(xu)加放(fang)電(dian)(dian)限流電(dian)(dian)阻,再充(chong)(chong)(chong)電(dian)(dian),部分可以修復(fu)。
三、充電手電筒充不進電怎么辦
最(zui)簡單的(de)(de)方法,找個(ge)滿電(dian)的(de)(de)好(hao)電(dian)池(chi),和過放的(de)(de)電(dian)池(chi),正負極對應(ying)直接接上,給過放的(de)(de)充電(dian),如果(guo)電(dian)壓能起來,再用充電(dian)器充就行,不(bu)行的(de)(de)話建議換一個(ge)。
四、充電手電筒的保養措施
1、存放時勿(wu)虧電
虧電(dian)狀態(tai)是指電(dian)池(chi)使用(yong)后沒及時(shi)充電(dian)。虧電(dian)狀態(tai)閑置時(shi)間越長,電(dian)池(chi)損壞越嚴(yan)重(zhong)。
2、不(bu)要(yao)曝曬
不能在陽光下(xia)曝(pu)曬。溫度(du)過高的(de)話,環境(jing)會(hui)使(shi)蓄(xu)電(dian)池內部壓力(li)增(zeng)(zeng)加(jia)(jia),使(shi)電(dian)池限壓閥被迫(po)自(zi)動開啟,直(zhi)接(jie)后果就是增(zeng)(zeng)加(jia)(jia)電(dian)池的(de)失(shi)水量,而(er)電(dian)池過度(du)失(shi)水會(hui)引發(fa)(fa)電(dian)池活性下(xia)降,加(jia)(jia)速極板的(de)軟化,充電(dian)時起(qi)鼓、殼體發(fa)(fa)熱、變形等致命損傷。
3、定期(qi)檢驗
在使(shi)用過(guo)程中(zhong),如(ru)果(guo)放電(dian)(dian)時間(jian)內(nei)突然下降,很有可能是電(dian)(dian)池(chi)(chi)組中(zhong)最少有一(yi)塊電(dian)(dian)池(chi)(chi)出現斷格、極板(ban)軟化、極板(ban)活性物質(zhi)脫落短路現象。此時,應及(ji)時到專業電(dian)(dian)池(chi)(chi)修復機構進行檢查(cha)、修4、復及(ji)配組(zu)
盡(jin)量避免瞬間大電流放(fang)電,大電流放(fang)電容(rong)易導致產硫酸鉛結(jie)晶,而損(sun)害電池極板的物理性(xing)能(neng)。
5、正確掌握充電時(shi)間
在使用過程中,應根據(ju)實際情況把握充電時間(jian),一(yi)般蓄電池都在夜間(jian)充電,平均(jun)時間(jian)在8小時左右。電(dian)(dian)(dian)池(chi)(chi)很快會充(chong)滿,繼續充(chong)電(dian)(dian)(dian)會出(chu)現過充(chong)現象,導(dao)致電(dian)(dian)(dian)池(chi)(chi)失水、發(fa)熱,降低電(dian)(dian)(dian)池(chi)(chi)的(de)壽命。所以,蓄電(dian)(dian)(dian)池(chi)(chi)以放電(dian)(dian)(dian)深度(du)為(wei)60%-70%時充(chong)一次電。
6、避免充電時(shi)拔熱(re)插頭(tou)
充電器輸出插(cha)頭(tou)松動、接(jie)觸面氧(yang)化現(xian)象會(hui)(hui)導致(zhi)充電插(cha)頭(tou)變熱(re),發(fa)熱(re)時(shi)間過(guo)長會(hui)(hui)導致(zhi)充電插(cha)頭(tou)短路,直接(jie)損害充電器(qi),帶來不必要損失。所以發(fa)現(xian)上述情(qing)況(kuang)時(shi),應該及時(shi)清除氧(yang)化物(wu)或更換(huan)接(jie)插(cha)件。