一、車載手機充電器原理是什么
車載手機充電器即車載充電器,是(shi)(shi)指用于安(an)裝在車上給(gei)手機(ji)等(deng)智(zhi)能(neng)設(she)備(bei)提(ti)供充(chong)(chong)電(dian)(dian)的(de)(de)設(she)備(bei),車載(zai)充(chong)(chong)電(dian)(dian)器(qi)的(de)(de)工作原理是(shi)(shi):用汽(qi)車點(dian)煙器(qi)作為電(dian)(dian)源插座直接為手機(ji)充(chong)(chong)電(dian)(dian),一般情況下(xia),汽(qi)車點(dian)煙器(qi)插座的(de)(de)電(dian)(dian)壓(ya)為12V或24V,車載(zai)充(chong)(chong)電(dian)(dian)器(qi)的(de)(de)作用就是(shi)(shi)將12V或24V的(de)(de)直流(liu)電(dian)(dian)轉換為5V的(de)(de)USB電(dian)(dian)壓(ya)直流(liu)電(dian)(dian),并(bing)通(tong)過(guo)充(chong)(chong)電(dian)(dian)線給(gei)電(dian)(dian)子產品(pin)充(chong)(chong)電(dian)(dian)。
用車(che)(che)載(zai)充(chong)(chong)電(dian)(dian)器(qi)(qi)要(yao)注(zhu)意的(de)是,由(you)于汽車(che)(che)提供的(de)電(dian)(dian)壓較低,所以車(che)(che)載(zai)充(chong)(chong)電(dian)(dian)器(qi)(qi)內部需要(yao)有(you)過(guo)(guo)載(zai)保(bao)護(hu)電(dian)(dian)路:車(che)(che)載(zai)充(chong)(chong)電(dian)(dian)器(qi)(qi)的(de)前端設計(ji)有(you)一個保(bao)險(xian)管,當(dang)電(dian)(dian)流(liu)超過(guo)(guo)過(guo)(guo)載(zai)保(bao)護(hu)電(dian)(dian)路可承受范圍(wei)時,保(bao)險(xian)絲(si)立即熔(rong)斷(duan),起到保(bao)護(hu)作用。不(bu)過(guo)(guo)保(bao)險(xian)絲(si)熔(rong)斷(duan)就會導致車(che)(che)載(zai)充(chong)(chong)電(dian)(dian)器(qi)(qi)被燒掉(diao),那么車(che)(che)載(zai)充(chong)(chong)電(dian)(dian)器(qi)(qi)燒掉(diao)了怎么辦呢?
二、車載usb充電器燒壞了怎么辦
車載usb充電器(qi)燒壞了的(de)原(yuan)因和解決(jue)方法有:
1、車載充電器質量問題
質(zhi)量(liang)問(wen)題導致電壓(ya)不穩,燒(shao)壞是(shi)(shi)很(hen)正(zheng)(zheng)常的,還有一些劣質(zhi)車(che)載(zai)充電器(qi)甚至(zhi)沒有保險絲,一旦發生故障可能(neng)燒(shao)壞的不是(shi)(shi)車(che)載(zai)充電器(qi),而是(shi)(shi)手機或(huo)是(shi)(shi)汽車(che)電瓶,因此一定要購買(mai)正(zheng)(zheng)規的車(che)載(zai)充電器(qi)。
2、車載充電器保險絲斷了
車(che)載充電(dian)(dian)器的電(dian)(dian)流超過(guo)保(bao)護(hu)電(dian)(dian)路承受范圍(wei)時(shi),保(bao)險(xian)絲會熔(rong)斷(duan)保(bao)護(hu),這時(shi)候一(yi)般(ban)更換(huan)一(yi)根保(bao)險(xian)絲即(ji)可,不過(guo)要(yao)注意的是(shi),許(xu)多車(che)主擔心會再(zai)次熔(rong)斷(duan),圖方便選擇更換(huan)更大(da)安數的保(bao)險(xian)絲,但這是(shi)非常危險(xian)的,很可能造成下次保(bao)險(xian)絲熔(rong)斷(duan)不及(ji)時(shi)引發(fa)更危險(xian)的后果。
3、車載充電器插頭設計不合理
車(che)充(chong)插(cha)頭設計有問(wen)題,導(dao)致插(cha)頭插(cha)入后,插(cha)頭內的(de)(de)保險(xian)絲(si)金屬帽后縮,會與(yu)插(cha)頭側(ce)(ce)的(de)(de)兩(liang)(liang)個(ge)彈片接觸而造(zao)成(cheng)短路。遇(yu)上這(zhe)種問(wen)題,解決方法時給買來的(de)(de)車(che)充(chong)在保險(xian)管周(zhou)加上一層絕緣層,保證保險(xian)絲(si)金屬帽不(bu)會與(yu)插(cha)頭側(ce)(ce)的(de)(de)兩(liang)(liang)個(ge)彈片接觸即可。