1、有刷電機(ji) 電(dian)(dian)(dian)機(ji)工作時，線圈和(he)換(huan)向器(qi)轉(zhuan)動(dong)，磁(ci)鋼和(he)碳刷(shua)(shua)不(bu)轉(zhuan)，線圈電(dian)(dian)(dian)流方向的(de)交錯變化(hua)是隨(sui)電(dian)(dian)(dian)機(ji)旋(xuan)轉(zhuan)的(de)換(huan)相器(qi)和(he)電(dian)(dian)(dian)刷(shua)(shua)來已完成的(de)。在電(dian)(dian)(dian)動(dong)車行業有刷(shua)(shua)電(dian)(dian)(dian)機(ji)分高速(su)有刷(shua)(shua)電(dian)(dian)(dian)機(ji)和(he)低速(su)有刷(shua)(shua)電(dian)(dian)(dian)機(ji)。有刷(shua)(shua)電(dian)(dian)(dian)機(ji)和(he)無刷(shua)(shua)電(dian)(dian)(dian)機(ji)有很多區別，從名字上可以顯現出有刷(shua)(shua)電(dian)(dian)(dian)機(ji)有碳刷(shua)(shua)，無刷(shua)(shua)電(dian)(dian)(dian)機(ji)沒碳刷(shua)(shua)

2、無(wu)刷直流電(dian)機(ji)由(you)電(dian)動(dong)機(ji)主體(ti)和(he)驅動(dong)器構成，是一種典型(xing)的(de)機(ji)電(dian)一體(ti)化產品。由(you)于無(wu)刷直流電(dian)動(dong)機(ji)是以自控式運營的(de)，所(suo)以會象(xiang)變頻調壓下牽(qian)引(yin)啟(qi)動(dong)的(de)同步(bu)電(dian)機(ji)那(nei)樣在轉子上另加啟(qi)動(dong)繞(rao)組，也會在阻抗變異時(shi)產生波動(dong)和(he)失步(bu)。

3、有刷(shua)電(dian)機(ji)是傳統產(chan)品，性能比較(jiao)穩定。

無刷(shua)(shua)電(dian)(dian)(dian)機是升(sheng)級(ji)產(chan)品，其壽命(ming)性能比(bi)有(you)刷(shua)(shua)電(dian)(dian)(dian)機好。但其控(kong)制(zhi)電(dian)(dian)(dian)路(lu)比(bi)較(jiao)復(fu)雜，對元件的老化(hua)檢驗(yan)拒絕比(bi)較(jiao)嚴苛。雖然電(dian)(dian)(dian)機壽命(ming)長(chang)但控(kong)制(zhi)電(dian)(dian)(dian)路(lu)更容易出毛病。因此(ci)搭配無刷(shua)(shua)電(dian)(dian)(dian)機要經(jing)過嚴苛的可靠性試驗(yan)以保證質(zhi)量。，但是隨(sui)著技(ji)術的不斷升(sheng)級(ji)幾(ji)步，無刷(shua)(shua)電(dian)(dian)(dian)機技(ji)術已經(jing)相當(dang)成(cheng)熟期。