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(dian)(dian)設備,也是(shi)每天(tian)都(dou)要使用的。那么(me)在充電(dian)(dian)的過程中,手機(ji)充電(dian)(dian)器輸(shu)出電(dian)(dian)流(liu)是(shi)直(zhi)流(liu)還是(shi)交(jiao)流(liu)?如何安全使用手機(ji)充電(dian)(dian)器呢(ni)?今(jin)天(tian)我們就一起來(lai)看一下。
手機充電器輸出的是直流還是交流電?
手(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian)器上面的變壓器變出來的是(shi)(shi)交(jiao)流電(dian)(dian),通過整流電(dian)(dian)路再變換出直流電(dian)(dian)后(hou)給手(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian),就是(shi)(shi)直流電(dian)(dian)。直流電(dian)(dian)標志是(shi)(shi)DC,交(jiao)流電(dian)(dian)標志是(shi)(shi)AC,手(shou)(shou)機(ji)充(chong)(chong)電(dian)(dian)器一般(ban)都(dou)是(shi)(shi)直流電(dian)(dian),而交(jiao)流電(dian)(dian)主(zhu)要用于傳(chuan)輸。
手(shou)機充(chong)(chong)(chong)電(dian)(dian)器輸出電(dian)(dian)流(liu)都(dou)是(shi)直流(liu),手(shou)機充(chong)(chong)(chong)電(dian)(dian)器在充(chong)(chong)(chong)電(dian)(dian)時,比如說500mA的(de)(de)充(chong)(chong)(chong)電(dian)(dian)器,充(chong)(chong)(chong)電(dian)(dian)是(shi)從0-500mA,或者500mA-0mA這樣的(de)(de)一(yi)個充(chong)(chong)(chong)電(dian)(dian)曲線的(de)(de),當手(shou)機電(dian)(dian)池(chi)電(dian)(dian)量用(yong)光的(de)(de)時候(hou),充(chong)(chong)(chong)電(dian)(dian)的(de)(de)時候(hou)就是(shi)用(yong)的(de)(de)最大(da)電(dian)(dian)流(liu)充(chong)(chong)(chong)的(de)(de)。
慢慢的(de)(de)電(dian)(dian)(dian)(dian)池(chi)的(de)(de)電(dian)(dian)(dian)(dian)量越(yue)來越(yue)多的(de)(de)時候,手機(ji)充(chong)電(dian)(dian)(dian)(dian)器的(de)(de)電(dian)(dian)(dian)(dian)流就越(yue)來越(yue)小(xiao),當電(dian)(dian)(dian)(dian)池(chi)完全充(chong)滿(man)的(de)(de)時候,手機(ji)充(chong)電(dian)(dian)(dian)(dian)器的(de)(de)充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流就為零(ling)了。這是手機(ji)充(chong)電(dian)(dian)(dian)(dian)器的(de)(de)限流電(dian)(dian)(dian)(dian)路決(jue)定的(de)(de)。
目(mu)前國(guo)家統一(yi)的(de)額定電(dian)(dian)壓(ya)(ya)為220V,手機充(chong)(chong)電(dian)(dian)器(qi)就(jiu)相當于是一(yi)個小型的(de)變壓(ya)(ya)器(qi),通過手機充(chong)(chong)電(dian)(dian)器(qi)把(ba)220V的(de)高壓(ya)(ya)脈沖轉換為5V低壓(ya)(ya)脈沖,再通過充(chong)(chong)電(dian)(dian)器(qi)的(de)轉換穩(wen)壓(ya)(ya)等,直接變為5V的(de)直流電(dian)(dian),也就(jiu)是“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(ji)充(chong)電(dian)(dian)(dian)(dian)器內都(dou)有過(guo)壓(ya)保護(hu)線路,并(bing)且裝(zhuang)有整流變(bian)壓(ya)器裝(zhuang)置,可以使高壓(ya)變(bian)低壓(ya),直流電(dian)(dian)(dian)(dian)轉換為交流電(dian)(dian)(dian)(dian)。而萬能充(chong)電(dian)(dian)(dian)(dian)器大都(dou)是非正規(gui)廠商生產(chan),不帶保護(hu)線圈(quan),容(rong)易使電(dian)(dian)(dian)(dian)壓(ya)或(huo)電(dian)(dian)(dian)(dian)流過(guo)高,并(bing)且不穩定。過(guo)高的(de)電(dian)(dian)(dian)(dian)壓(ya)容(rong)易把電(dian)(dian)(dian)(dian)池充(chong)鼓包,有時還會造成危險(xian)發生爆炸,手機(ji)也容(rong)易被燒壞(huai)。
2、手機充電時不要覆蓋任何東西
充(chong)電(dian)(dian)時手(shou)機電(dian)(dian)壓高(gao)于(yu)待機狀態,如果(guo)使用(yong)了不合格的電(dian)(dian)池或者手(shou)機充(chong)電(dian)(dian)器,加上充(chong)電(dian)(dian)時環境(jing)差,比如高(gao)溫(wen)、潮濕(shi)等,可能會發生意(yi)外。
3、不用時拔下電源插頭
充電結束后,要(yao)記得拔下電源插頭,這樣可以有效(xiao)防(fang)止電源母線引發火(huo)災。
4、別邊充電邊接電話
正常情況下帶危險電(dian)壓的(de)零部(bu)件(jian)和可觸(chu)及的(de)導(dao)電(dian)零部(bu)件(jian)間的(de)絕緣(yuan)被擊(ji)穿或接觸(chu)電(dian)流過(guo)大(da),都很容(rong)易引起使(shi)用者(zhe)觸(chu)電(dian)。特別是(shi)對于部(bu)分(fen)智(zhi)能手(shou)機使(shi)用者(zhe),“邊(bian)充邊(bian)打”已是(shi)家(jia)常便飯,更(geng)應(ying)小(xiao)心(xin)。另外,劣質手(shou)機充電(dian)器也很容(rong)易著火。
5、選用質量合格的充電器
在購買手機充電器、電池時(shi)一定要(yao)選擇正規廠(chang)家合格(ge)的(de)產(chan)品,不(bu)(bu)要(yao)圖便宜(yi)到不(bu)(bu)正規小廠(chang)家購買電氣性(xing)能不(bu)(bu)合格(ge)的(de)產(chan)品。消防專家指出,好的(de)充電器內部有過熱自(zi)(zi)保(bao)護電路,當其內部溫度達(da)到一定值時(shi),會自(zi)(zi)動斷開電源,起到一定程度的(de)保(bao)護作用。
手機充電器(qi)輸出(chu)的是(shi)直流還是(shi)交流電以及如何安(an)(an)(an)全(quan)使(shi)用(yong)就為您分享(xiang)到這里(li)。想要確保手機充電器(qi)使(shi)用(yong)的安(an)(an)(an)全(quan)性,我(wo)們(men)就必須(xu)在充電器(qi)提高警惕,使(shi)用(yong)優質的充電器(qi)產品,特別是(shi)經過安(an)(an)(an)全(quan)認(ren)證的,前面我(wo)們(men)有講(jiang)到充電器(qi)UL認(ren)證標準,大家可以結合起(qi)來了解一下(xia)。