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(chong)(chong)電(dian)(dian)(dian)設備，也是每天都(dou)要使(shi)(shi)用的。那么在充(chong)(chong)電(dian)(dian)(dian)的過程中，手機(ji)充(chong)(chong)電(dian)(dian)(dian)器輸(shu)出電(dian)(dian)(dian)流是直流還(huan)是交流?如何安全使(shi)(shi)用手機(ji)充(chong)(chong)電(dian)(dian)(dian)器呢?今天我們就(jiu)一起來(lai)看一下。

　　手機充電器輸出的是直流還是交流電?

　　手(shou)(shou)機充(chong)(chong)電(dian)(dian)器上面的變壓器變出(chu)來的是(shi)交流(liu)(liu)電(dian)(dian)，通過整流(liu)(liu)電(dian)(dian)路(lu)再(zai)變換(huan)出(chu)直流(liu)(liu)電(dian)(dian)后給手(shou)(shou)機充(chong)(chong)電(dian)(dian)，就是(shi)直流(liu)(liu)電(dian)(dian)。直流(liu)(liu)電(dian)(dian)標(biao)志(zhi)是(shi)DC，交流(liu)(liu)電(dian)(dian)標(biao)志(zhi)是(shi)AC，手(shou)(shou)機充(chong)(chong)電(dian)(dian)器一(yi)般(ban)都是(shi)直流(liu)(liu)電(dian)(dian)，而交流(liu)(liu)電(dian)(dian)主要用于傳輸。

　　手(shou)機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器輸(shu)出電(dian)(dian)(dian)流(liu)(liu)都是(shi)直流(liu)(liu)，手(shou)機充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器在充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)時(shi)(shi)，比如(ru)說(shuo)500mA的(de)充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)器，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)是(shi)從0-500mA，或者500mA-0mA這樣的(de)一個充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)曲線(xian)的(de)，當手(shou)機電(dian)(dian)(dian)池電(dian)(dian)(dian)量(liang)用(yong)光的(de)時(shi)(shi)候，充(chong)(chong)(chong)(chong)電(dian)(dian)(dian)的(de)時(shi)(shi)候就是(shi)用(yong)的(de)最大電(dian)(dian)(dian)流(liu)(liu)充(chong)(chong)(chong)(chong)的(de)。

　　慢慢的電(dian)(dian)(dian)(dian)池的電(dian)(dian)(dian)(dian)量越來越多的時候(hou)，手(shou)(shou)機(ji)充(chong)電(dian)(dian)(dian)(dian)器的電(dian)(dian)(dian)(dian)流(liu)就越來越小，當電(dian)(dian)(dian)(dian)池完全充(chong)滿的時候(hou)，手(shou)(shou)機(ji)充(chong)電(dian)(dian)(dian)(dian)器的充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)就為(wei)零了。這是手(shou)(shou)機(ji)充(chong)電(dian)(dian)(dian)(dian)器的限(xian)流(liu)電(dian)(dian)(dian)(dian)路決定的。

　　目前(qian)國家統一(yi)的(de)(de)額定電壓為(wei)(wei)220V，手機(ji)充電器就相當(dang)于(yu)是一(yi)個小型的(de)(de)變壓器，通(tong)過手機(ji)充電器把220V的(de)(de)高壓脈(mo)沖(chong)轉換為(wei)(wei)5V低壓脈(mo)沖(chong)，再通(tong)過充電器的(de)(de)轉換穩壓等，直接變為(wei)(wei)5V的(de)(de)直流(liu)電，也就是“恒壓”作(zuo)用。

　　如何安全使用手機充電器?

　　1、最好采用直充

　　原(yuan)裝手機充電器(qi)內都有(you)過壓(ya)(ya)(ya)保護線路，并(bing)且裝有(you)整流(liu)變壓(ya)(ya)(ya)器(qi)裝置，可以使高壓(ya)(ya)(ya)變低壓(ya)(ya)(ya)，直流(liu)電轉(zhuan)換為交流(liu)電。而萬能充電器(qi)大(da)都是非正規廠商生產，不帶(dai)保護線圈，容易使電壓(ya)(ya)(ya)或電流(liu)過高，并(bing)且不穩定。過高的電壓(ya)(ya)(ya)容易把電池充鼓(gu)包，有(you)時還會造成危險發生爆炸，手機也容易被燒壞(huai)。

　　2、手機充電時不要覆蓋任何東西

　　充電(dian)時手機(ji)電(dian)壓高(gao)于待(dai)機(ji)狀(zhuang)態，如果使用(yong)了不合格的電(dian)池或者手機(ji)充電(dian)器，加(jia)上(shang)充電(dian)時環境差，比如高(gao)溫、潮濕等，可能會發生意(yi)外。

　　3、不用時拔下電源插頭

　　充電結束(shu)后，要記得拔(ba)下電源插頭，這樣可(ke)以有效防止電源母線引(yin)發(fa)火災(zai)。

　　4、別邊充電邊接電話

　　正(zheng)常情(qing)況(kuang)下帶危(wei)險電壓(ya)的(de)零部件和可(ke)觸(chu)及的(de)導電零部件間的(de)絕緣被擊穿或接觸(chu)電流過大，都很容易引起使用(yong)者觸(chu)電。特別是對于部分智能手機(ji)使用(yong)者，“邊充邊打”已是家常便飯，更應小(xiao)心。另外，劣(lie)質手機(ji)充電器(qi)也很容易著火。

　　5、選用質量合格的充電器

　　在購(gou)(gou)買(mai)手機充電(dian)器、電(dian)池時一(yi)定(ding)要選擇正規(gui)廠家合(he)格(ge)的(de)產品(pin)，不(bu)(bu)要圖便(bian)宜(yi)到(dao)不(bu)(bu)正規(gui)小廠家購(gou)(gou)買(mai)電(dian)氣性能不(bu)(bu)合(he)格(ge)的(de)產品(pin)。消防(fang)專家指(zhi)出，好的(de)充電(dian)器內部有過熱自保護電(dian)路，當其內部溫度(du)(du)達(da)到(dao)一(yi)定(ding)值(zhi)時，會自動斷開電(dian)源，起(qi)到(dao)一(yi)定(ding)程度(du)(du)的(de)保護作用。

　　手(shou)機充(chong)電器(qi)(qi)(qi)輸出的是(shi)直流還是(shi)交流電以及如何安全使(shi)(shi)用就為您(nin)分(fen)享到這里。想要確保手(shou)機充(chong)電器(qi)(qi)(qi)使(shi)(shi)用的安全性(xing)，我(wo)們(men)就必須(xu)在充(chong)電器(qi)(qi)(qi)提高警惕，使(shi)(shi)用優質(zhi)的充(chong)電器(qi)(qi)(qi)產品(pin)，特別是(shi)經過安全認(ren)證的，前面(mian)我(wo)們(men)有(you)講到充(chong)電器(qi)(qi)(qi)UL認(ren)證標準，大家可以結合起來(lai)了(le)解(jie)一下(xia)。