起動繼電器:保護線(xian)路,點火開(kai)關。
汽車啟(qi)動繼電器的作用(yong):
1、主(zhu)要是通過(guo)控制低壓(ya)線(xian)(xian)路的(de)電(dian)流(liu)(liu)(liu)來控制高壓(ya)線(xian)(xian)路的(de)電(dian)流(liu)(liu)(liu),起到電(dian)流(liu)(liu)(liu)開(kai)關的(de)作用(yong)。啟動繼電(dian)器是啟動系統組(zu)成部件之(zhi)一,在汽車上主(zhu)要作用(yong)為小(xiao)電(dian)流(liu)(liu)(liu);
2、控制大電(dian)(dian)(dian)(dian)流方式(shi)啟動(dong)(dong)馬達(da)轉動(dong)(dong),從而(er)帶動(dong)(dong)發(fa)電(dian)(dian)(dian)(dian)機(ji)內(nei)部(bu)磁(ci)電(dian)(dian)(dian)(dian)機(ji)轉子轉動(dong)(dong),給(gei)點(dian)火器輸入點(dian)火脈(mo)沖信號,使點(dian)火器產生電(dian)(dian)(dian)(dian)火花,點(dian)燃汽(qi)缸內(nei)的混合燃氣并做功。繼電(dian)(dian)(dian)(dian)器屬(shu)于開(kai)關類,它(ta)是利用電(dian)(dian)(dian)(dian)磁(ci)原理(li)、機(ji)電(dian)(dian)(dian)(dian)原理(li)使接(jie)點(dian)閉合或斷(duan)開(kai)來(lai)驅動(dong)(dong)或控制相關電(dian)(dian)(dian)(dian)路(lu)的;
3、繼(ji)電器(qi)(qi)為一(yi)(yi)種控制(zhi)器(qi)(qi)件,它(ta)有受控系統(tong)(輸(shu)入回(hui)(hui)路)和(he)控制(zhi)系統(tong)(輸(shu)出(chu)(chu)回(hui)(hui)路)兩(liang)部分。當輸(shu)入量(電、磁、光、熱等(deng)物理(li)量)達到(dao)某一(yi)(yi)定值時(shi),輸(shu)出(chu)(chu)量躍變(bian)式地(di)由(you)零(ling)變(bian)化到(dao)一(yi)(yi)定值(或由(you)一(yi)(yi)定值跳變(bian)到(dao)零(ling)),從而實現對(dui)電路的控制(zhi)、保(bao)護、調節和(he)傳遞信(xin)息等(deng)目的。
啟(qi)(qi)動(dong)(dong)繼(ji)電(dian)(dian)器是(shi)(shi)單獨部件,其作用是(shi)(shi)接通(tong)、斷(duan)開吸引線圈和保持線圈電(dian)(dian)路。在電(dian)(dian)冰箱、空調器這類(lei)小型制(zhi)冷設備中,制(zhi)冷壓縮(suo)機多(duo)采用單相分相式異步電(dian)(dian)動(dong)(dong)機,啟(qi)(qi)動(dong)(dong)繼(ji)電(dian)(dian)器的作用是(shi)(shi)幫助電(dian)(dian)動(dong)(dong)機啟(qi)(qi)動(dong)(dong),啟(qi)(qi)動(dong)(dong)完(wan)成后自動(dong)(dong)斷(duan)開副繞(rao)組,避免燒壞副繞(rao)組線圈。
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