手機是我們必不可少的一部分，而手機充電器作為(wei)手(shou)機的(de)充(chong)電(dian)設備，也是(shi)每天都要使(shi)(shi)用的(de)。那么在(zai)充(chong)電(dian)的(de)過程中，手(shou)機充(chong)電(dian)器輸出電(dian)流(liu)是(shi)直流(liu)還是(shi)交流(liu)?如(ru)何(he)安全(quan)使(shi)(shi)用手(shou)機充(chong)電(dian)器呢?今天我們(men)就一起來看一下。

　　手機充電器輸出的是直流還是交流電?

　　手機(ji)充電(dian)(dian)(dian)(dian)器上面的變(bian)(bian)壓器變(bian)(bian)出來(lai)的是交流電(dian)(dian)(dian)(dian)，通過整(zheng)流電(dian)(dian)(dian)(dian)路再(zai)變(bian)(bian)換出直(zhi)流電(dian)(dian)(dian)(dian)后給手機(ji)充電(dian)(dian)(dian)(dian)，就是直(zhi)流電(dian)(dian)(dian)(dian)。直(zhi)流電(dian)(dian)(dian)(dian)標志是DC，交流電(dian)(dian)(dian)(dian)標志是AC，手機(ji)充電(dian)(dian)(dian)(dian)器一(yi)般都是直(zhi)流電(dian)(dian)(dian)(dian)，而交流電(dian)(dian)(dian)(dian)主要用(yong)于傳輸(shu)。

　　手(shou)機充電(dian)(dian)(dian)(dian)器(qi)輸出電(dian)(dian)(dian)(dian)流都是直流，手(shou)機充電(dian)(dian)(dian)(dian)器(qi)在充電(dian)(dian)(dian)(dian)時(shi)，比如(ru)說500mA的(de)(de)(de)充電(dian)(dian)(dian)(dian)器(qi)，充電(dian)(dian)(dian)(dian)是從0-500mA，或者(zhe)500mA-0mA這樣(yang)的(de)(de)(de)一(yi)個充電(dian)(dian)(dian)(dian)曲線的(de)(de)(de)，當手(shou)機電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)量用光的(de)(de)(de)時(shi)候，充電(dian)(dian)(dian)(dian)的(de)(de)(de)時(shi)候就(jiu)是用的(de)(de)(de)最大電(dian)(dian)(dian)(dian)流充的(de)(de)(de)。

　　慢慢的(de)電(dian)(dian)(dian)池的(de)電(dian)(dian)(dian)量越來越多的(de)時候，手(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)器(qi)的(de)電(dian)(dian)(dian)流就越來越小(xiao)，當電(dian)(dian)(dian)池完全充(chong)(chong)滿的(de)時候，手(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)器(qi)的(de)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流就為零了(le)。這是手(shou)機(ji)充(chong)(chong)電(dian)(dian)(dian)器(qi)的(de)限流電(dian)(dian)(dian)路決定(ding)的(de)。

　　目前國家統一(yi)的(de)額定電壓(ya)(ya)為220V，手機(ji)充電器就相當(dang)于是(shi)一(yi)個小型的(de)變壓(ya)(ya)器，通過手機(ji)充電器把(ba)220V的(de)高壓(ya)(ya)脈(mo)沖(chong)轉換為5V低壓(ya)(ya)脈(mo)沖(chong)，再通過充電器的(de)轉換穩壓(ya)(ya)等(deng)，直(zhi)接變為5V的(de)直(zhi)流電，也就是(shi)“恒壓(ya)(ya)”作用。

　　如何安全使用手機充電器?

　　1、最好采用直充

　　原裝(zhuang)手機充(chong)(chong)電(dian)器內都(dou)有過(guo)壓(ya)保護線路，并且裝(zhuang)有整流(liu)(liu)(liu)變(bian)壓(ya)器裝(zhuang)置，可以使高壓(ya)變(bian)低壓(ya)，直流(liu)(liu)(liu)電(dian)轉換為交(jiao)流(liu)(liu)(liu)電(dian)。而萬(wan)能充(chong)(chong)電(dian)器大都(dou)是非(fei)正規廠(chang)商(shang)生(sheng)產(chan)，不帶保護線圈，容易(yi)使電(dian)壓(ya)或(huo)電(dian)流(liu)(liu)(liu)過(guo)高，并且不穩定。過(guo)高的電(dian)壓(ya)容易(yi)把電(dian)池充(chong)(chong)鼓(gu)包，有時還會造成(cheng)危(wei)險(xian)發生(sheng)爆(bao)炸，手機也(ye)容易(yi)被燒壞。

　　2、手機充電時不要覆蓋任何東西

　　充(chong)電時(shi)手機(ji)電壓高于待(dai)機(ji)狀態(tai)，如果使(shi)用了不合格的(de)電池或者手機(ji)充(chong)電器，加上充(chong)電時(shi)環境差，比如高溫、潮濕等，可能會(hui)發生意外。

　　3、不用時拔下電源插頭

　　充(chong)電(dian)結束后，要(yao)記得拔下電(dian)源(yuan)插(cha)頭，這樣可以有效防止(zhi)電(dian)源(yuan)母線引(yin)發火(huo)災。

　　4、別邊充電邊接電話

　　正常(chang)情(qing)況下帶危險電(dian)(dian)壓的零(ling)部(bu)件和可觸及的導電(dian)(dian)零(ling)部(bu)件間的絕緣被擊(ji)穿或接觸電(dian)(dian)流過(guo)大，都很(hen)容易引起(qi)使用(yong)者觸電(dian)(dian)。特別是(shi)對于部(bu)分智(zhi)能手(shou)機使用(yong)者，“邊(bian)充邊(bian)打”已是(shi)家常(chang)便飯，更(geng)應小(xiao)心。另外，劣質手(shou)機充電(dian)(dian)器也很(hen)容易著火。

　　5、選用質量合格的充電器

　　在購(gou)買(mai)手機(ji)充(chong)(chong)電(dian)器、電(dian)池(chi)時一定要選(xuan)擇正規廠家合(he)格的(de)產(chan)品(pin)，不要圖便宜到(dao)不正規小廠家購(gou)買(mai)電(dian)氣性(xing)能(neng)不合(he)格的(de)產(chan)品(pin)。消防(fang)專家指出，好(hao)的(de)充(chong)(chong)電(dian)器內(nei)部(bu)(bu)有(you)過熱自(zi)保護電(dian)路，當其內(nei)部(bu)(bu)溫度(du)(du)達(da)到(dao)一定值(zhi)時，會自(zi)動(dong)斷開電(dian)源，起到(dao)一定程度(du)(du)的(de)保護作用。

　　手(shou)機充(chong)(chong)(chong)電(dian)器輸出(chu)的是(shi)直(zhi)流還是(shi)交流電(dian)以及如何(he)安全(quan)(quan)使(shi)用就(jiu)為您(nin)分享(xiang)到這里。想要(yao)確(que)保手(shou)機充(chong)(chong)(chong)電(dian)器使(shi)用的安全(quan)(quan)性，我(wo)們就(jiu)必(bi)須在充(chong)(chong)(chong)電(dian)器提高警惕，使(shi)用優(you)質的充(chong)(chong)(chong)電(dian)器產品，特別(bie)是(shi)經過安全(quan)(quan)認(ren)證(zheng)(zheng)的，前面我(wo)們有講到充(chong)(chong)(chong)電(dian)器UL認(ren)證(zheng)(zheng)標準，大家可以結合起來了解(jie)一下。