2、直流(liu)(liu)無(wu)刷(shua)(shua)電(dian)(dian)(dian)機(ji)的(de)內部結(jie)構主要由定子(zi)和(he)轉子(zi)組成,以前使(shi)用的(de)多(duo)為(wei)有(you)刷(shua)(shua)電(dian)(dian)(dian)機(ji),有(you)刷(shua)(shua)電(dian)(dian)(dian)機(ji)轉子(zi)為(wei)碳刷(shua)(shua),電(dian)(dian)(dian)機(ji)上還裝有(you)霍(huo)爾傳感器,檢測位置,在工作過程中(zhong)不(bu)斷(duan)(duan)地(di)與變(bian)換片交替接觸,產(chan)生交替變(bian)化(hua)的(de)電(dian)(dian)(dian)磁場,不(bu)斷(duan)(duan)地(di)轉動,后來(lai)研制出直流(liu)(liu)無(wu)刷(shua)(shua)電(dian)(dian)(dian)機(ji),由于無(wu)碳刷(shua)(shua)電(dian)(dian)(dian)機(ji)體積(ji)比交流(liu)(liu)電(dian)(dian)(dian)機(ji)和(he)直流(liu)(liu)有(you)刷(shua)(shua)電(dian)(dian)(dian)機(ji)小很多(duo),所以現在很多(duo)工業設備都(dou)改(gai)用直流(liu)(liu)無(wu)刷(shua)(shua)電(dian)(dian)(dian)機(ji)。

1、交流(liu)(liu)電(dian)動機供電(dian)電(dian)壓(ya)為交流(liu)(liu)電(dian)流(liu)(liu),可通過交流(liu)(liu)開關元件(jian)控制電(dian)動機的(de)通斷,如(ru)晶(jing)閘管(guan),在使用(yong)晶(jing)閘管(guan)時(shi)耐壓(ya)要(yao)求足夠,如(ru)220 AV交流(liu)(liu)電(dian)動機,可耐壓(ya)值400 VAC甚至600 VAC。
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