受電器(qi)又(you)稱為（滑(hua)觸線(xian)集電(dian)器(qi)，滑(hua)導電(dian)器(qi)）在滑(hua)觸線(xian)上電(dian)流(liu)通(tong)過(guo)受(shou)電器(qi)傳導至(zhi)用(yong)電設(she)備(bei)上，受(shou)電(dian)器(qi)安(an)裝在受電(dian)器(qi)支(zhi)架(jia)上(shang)，而受電(dian)器(qi)支(zhi)架(jia)安(an)裝在運動的設備(bei)上。隨設(she)備移動，受電器(qi)上(shang)的碳刷(shua)在滑(hua)觸線(xian)內(nei)移動，實(shi)現(xian)不(bu)間斷供電(dian)，受(shou)電(dian)器(qi)容(rong)量必須與導線(xian)的容(rong)量匹配(pei)。常(chang)規上(shang)受電器(qi)有100A、250A等規格。當(dang)用(yong)壹個受電器(qi)容(rong)量不(bu)足時，可以在壹根(gen)導線(xian)上並(bing)接兩個受電器(qi)使(shi)用(yong)，容(rong)量加倍，受(shou)電器(qi)上(shang)的碳刷(shua)是(shi)含(han)銅(tong)碳基壓(ya)而制成(cheng)的(de)，堅(jian)韌耐(nai)壓(ya)，導電(dian)性能(neng)好(hao)，有壹定(ding)的潤(run)滑(hua)性，磨(mo)損至(zhi)壹定(ding)程度(du)後需(xu)及(ji)時更換。

由機(ji)械(xie)結(jie)構的(de)張力(li)裝置和(he)直接與導軌(gui)滑(hua)動接觸的集電(dian)刷(shua)兩(liang)部(bu)分(fen)組成。滑(hua)觸線(xian)集電(dian)器(qi)，受(shou)電器(qi)，供(gong)電器(qi)，導電(dian)器(qi)，滑(hua)線(xian)廠(chang)家(jia)揚(yang)州順(shun)馳。多(duo)極滑(hua)觸線(xian)集電(dian)器(qi)，單(dan)極滑(hua)觸線(xian)集電(dian)器(qi)，單(dan)極排式滑(hua)觸線(xian)集電(dian)器(qi)，組(zu)合(he)式滑(hua)線(xian)集電(dian)器(qi)。