起(qi)動繼電器:保護線(xian)路(lu),點火開(kai)關。
汽(qi)車啟動繼電器的作用:
1、主(zhu)要是(shi)通過控制低壓(ya)線路(lu)的(de)電(dian)(dian)(dian)流來控制高(gao)壓(ya)線路(lu)的(de)電(dian)(dian)(dian)流,起到電(dian)(dian)(dian)流開關的(de)作用。啟動繼(ji)電(dian)(dian)(dian)器是(shi)啟動系統組成部(bu)件之一,在汽(qi)車(che)上主(zhu)要作用為小電(dian)(dian)(dian)流;
2、控(kong)制大電流方式啟動(dong)馬達轉(zhuan)(zhuan)動(dong),從而帶動(dong)發電機內部磁電機轉(zhuan)(zhuan)子(zi)轉(zhuan)(zhuan)動(dong),給點(dian)(dian)(dian)火(huo)(huo)器(qi)輸入點(dian)(dian)(dian)火(huo)(huo)脈沖(chong)信號(hao),使(shi)點(dian)(dian)(dian)火(huo)(huo)器(qi)產生電火(huo)(huo)花,點(dian)(dian)(dian)燃汽缸(gang)內的(de)混合燃氣(qi)并做功(gong)。繼(ji)電器(qi)屬(shu)于開(kai)關(guan)類,它是利用電磁原理(li)、機電原理(li)使(shi)接(jie)點(dian)(dian)(dian)閉合或斷開(kai)來驅(qu)動(dong)或控(kong)制相關(guan)電路的(de);
3、繼電(dian)器為一(yi)(yi)種控制(zhi)器件,它有受控系(xi)統(tong)(輸入(ru)回路(lu)(lu))和控制(zhi)系(xi)統(tong)(輸出(chu)(chu)回路(lu)(lu))兩部(bu)分。當輸入(ru)量(電(dian)、磁、光、熱等物理量)達(da)到某一(yi)(yi)定(ding)值時,輸出(chu)(chu)量躍變(bian)式(shi)地由零變(bian)化到一(yi)(yi)定(ding)值(或由一(yi)(yi)定(ding)值跳變(bian)到零),從而實現對電(dian)路(lu)(lu)的(de)控制(zhi)、保護、調節(jie)和傳(chuan)遞信息等目的(de)。
啟動(dong)(dong)(dong)繼(ji)電(dian)(dian)器(qi)(qi)是(shi)單獨部件,其(qi)作(zuo)用(yong)是(shi)接通、斷開(kai)吸(xi)引線圈(quan)和保持線圈(quan)電(dian)(dian)路。在(zai)電(dian)(dian)冰箱、空(kong)調器(qi)(qi)這類小型(xing)制冷(leng)設(she)備中,制冷(leng)壓縮機多(duo)采用(yong)單相分相式異步電(dian)(dian)動(dong)(dong)(dong)機,啟動(dong)(dong)(dong)繼(ji)電(dian)(dian)器(qi)(qi)的(de)作(zuo)用(yong)是(shi)幫助電(dian)(dian)動(dong)(dong)(dong)機啟動(dong)(dong)(dong),啟動(dong)(dong)(dong)完成(cheng)后自(zi)動(dong)(dong)(dong)斷開(kai)副繞組,避(bi)免(mian)燒(shao)壞(huai)副繞組線圈(quan)。
014年9月19日,路虎在長城腳下正式發布了路虎發現運動版(Discovery Sport)車型,新車在中國的正式命名為“發現神行”,成為中型豪華SUV市場中首款采用7座的車型。其可以視為神行者2的繼任車型,但根據路虎的最新規劃,這款車型被歸入發現系列,定位略高于神行者。在實車發布的同時,路虎官方還公布了發現神行的預售價格,預計60萬元左右。在2014廣州車展上,路虎旗下發現神行正式上市,新車共推出兩款車型,售價區間為55.8-61.8萬元。
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