手機充電器輸出電流是直流還是交流電?如何安全使用?
手機是我們必不可少的一部分,而手機充電器作為手機(ji)的充電設備,也(ye)是(shi)每天(tian)(tian)都要使用的。那么在充電的過程中,手機(ji)充電器輸出電流(liu)(liu)是(shi)直流(liu)(liu)還是(shi)交流(liu)(liu)?如何安全使用手機(ji)充電器呢?今天(tian)(tian)我們(men)就一起來看(kan)一下。
手機充電器輸出的是直流還是交流電?
手機(ji)充電(dian)(dian)器上面(mian)的變(bian)壓器變(bian)出來的是(shi)(shi)交(jiao)流(liu)電(dian)(dian),通過整流(liu)電(dian)(dian)路(lu)再變(bian)換出直流(liu)電(dian)(dian)后給手機(ji)充電(dian)(dian),就是(shi)(shi)直流(liu)電(dian)(dian)。直流(liu)電(dian)(dian)標志(zhi)(zhi)是(shi)(shi)DC,交(jiao)流(liu)電(dian)(dian)標志(zhi)(zhi)是(shi)(shi)AC,手機(ji)充電(dian)(dian)器一般(ban)都(dou)是(shi)(shi)直流(liu)電(dian)(dian),而(er)交(jiao)流(liu)電(dian)(dian)主(zhu)要(yao)用(yong)于傳輸。
手機(ji)充(chong)(chong)電(dian)(dian)器輸(shu)出(chu)電(dian)(dian)流(liu)(liu)都是(shi)(shi)直(zhi)流(liu)(liu),手機(ji)充(chong)(chong)電(dian)(dian)器在充(chong)(chong)電(dian)(dian)時(shi),比如(ru)說500mA的(de)(de)充(chong)(chong)電(dian)(dian)器,充(chong)(chong)電(dian)(dian)是(shi)(shi)從0-500mA,或(huo)者500mA-0mA這樣的(de)(de)一(yi)個(ge)充(chong)(chong)電(dian)(dian)曲線的(de)(de),當手機(ji)電(dian)(dian)池電(dian)(dian)量用光(guang)的(de)(de)時(shi)候,充(chong)(chong)電(dian)(dian)的(de)(de)時(shi)候就是(shi)(shi)用的(de)(de)最(zui)大(da)電(dian)(dian)流(liu)(liu)充(chong)(chong)的(de)(de)。
慢慢的(de)(de)(de)(de)電(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)電(dian)(dian)(dian)量越(yue)來越(yue)多(duo)的(de)(de)(de)(de)時(shi)(shi)候(hou),手(shou)機充(chong)電(dian)(dian)(dian)器的(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)就越(yue)來越(yue)小,當電(dian)(dian)(dian)池(chi)完(wan)全(quan)充(chong)滿(man)的(de)(de)(de)(de)時(shi)(shi)候(hou),手(shou)機充(chong)電(dian)(dian)(dian)器的(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)就為零了。這(zhe)是手(shou)機充(chong)電(dian)(dian)(dian)器的(de)(de)(de)(de)限流(liu)電(dian)(dian)(dian)路(lu)決定的(de)(de)(de)(de)。
目前國家統一(yi)的(de)額定電壓(ya)為220V,手(shou)機充電器就(jiu)相(xiang)當于是一(yi)個(ge)小型的(de)變壓(ya)器,通(tong)過手(shou)機充電器把220V的(de)高(gao)壓(ya)脈(mo)沖轉(zhuan)換為5V低壓(ya)脈(mo)沖,再通(tong)過充電器的(de)轉(zhuan)換穩壓(ya)等,直接變為5V的(de)直流電,也就(jiu)是“恒壓(ya)”作(zuo)用。
如何安全使用手機充電器?
1、最好采用直充
原裝(zhuang)手機充電(dian)(dian)器內都有過壓保(bao)護線(xian)路(lu),并(bing)(bing)且裝(zhuang)有整流變壓器裝(zhuang)置,可以使高壓變低壓,直(zhi)流電(dian)(dian)轉換為交流電(dian)(dian)。而萬(wan)能充電(dian)(dian)器大都是非正(zheng)規廠(chang)商生(sheng)(sheng)產(chan),不帶保(bao)護線(xian)圈,容(rong)易(yi)使電(dian)(dian)壓或(huo)電(dian)(dian)流過高,并(bing)(bing)且不穩定。過高的電(dian)(dian)壓容(rong)易(yi)把電(dian)(dian)池(chi)充鼓包,有時還會造成(cheng)危(wei)險發生(sheng)(sheng)爆炸,手機也容(rong)易(yi)被燒壞。
2、手機充電時不要覆蓋任何東西
充電(dian)(dian)時手機電(dian)(dian)壓高于(yu)待機狀態(tai),如果使用了不(bu)合格(ge)的電(dian)(dian)池或(huo)者手機充電(dian)(dian)器,加上(shang)充電(dian)(dian)時環境差,比如高溫、潮(chao)濕等(deng),可能會發生意外。
3、不用時拔下電源插頭
充電結束后,要記(ji)得拔下電源插(cha)頭,這樣可以有效防止(zhi)電源母線(xian)引發火(huo)災。
4、別邊充電邊接電話
正(zheng)常情況下帶危險電(dian)壓的(de)零部(bu)(bu)件和可觸(chu)及的(de)導電(dian)零部(bu)(bu)件間(jian)的(de)絕緣被(bei)擊穿或接觸(chu)電(dian)流過大,都很容易引起(qi)使(shi)用(yong)者觸(chu)電(dian)。特別是對于部(bu)(bu)分智能手(shou)機使(shi)用(yong)者,“邊充(chong)邊打(da)”已(yi)是家常便飯,更(geng)應小心。另外,劣質手(shou)機充(chong)電(dian)器(qi)也很容易著火。
5、選用質量合格的充電器
在購買手機(ji)充電(dian)(dian)器(qi)(qi)、電(dian)(dian)池時(shi)一(yi)定(ding)要選擇(ze)正規廠家(jia)合格的產品,不要圖便宜到(dao)不正規小廠家(jia)購買電(dian)(dian)氣性能不合格的產品。消防專家(jia)指(zhi)出,好的充電(dian)(dian)器(qi)(qi)內部(bu)有過熱自(zi)保護電(dian)(dian)路,當其內部(bu)溫度達到(dao)一(yi)定(ding)值時(shi),會自(zi)動斷開電(dian)(dian)源,起到(dao)一(yi)定(ding)程度的保護作用。
手(shou)機充電器(qi)(qi)輸出的是直(zhi)流還是交流電以及如(ru)何安全(quan)使(shi)用(yong)就為您分(fen)享到(dao)這里。想要(yao)確保手(shou)機充電器(qi)(qi)使(shi)用(yong)的安全(quan)性,我們就必須(xu)在充電器(qi)(qi)提(ti)高(gao)警(jing)惕,使(shi)用(yong)優質(zhi)的充電器(qi)(qi)產品,特別(bie)是經過安全(quan)認(ren)(ren)證的,前面我們有講到(dao)充電器(qi)(qi)UL認(ren)(ren)證標準,大家可以結合起來了(le)解一下。