交流電異步電動機分為感應電動機和交流換向器電動機2012-07-31
交流異步電動機分為感應電動機和交流換向器電動機:
交流異步電(dian)動(dong)機(ji)是領先(xian)交流電(dian)壓(ya)運行的電(dian)動(dong)機(ji)，廣泛g用(yong)于電(dian)風扇、電(dian)冰箱、洗衣機(ji)、空調器、電(dian)吹(chui)風、吸塵(chen)器、油煙機(ji)、洗碗(wan)機(ji)、電(dian)動(dong)縫紉機(ji)、食品加工(gong)機(ji)等家用(yong)電(dian)器及各種電(dian)動(dong)工(gong)具、小型機(ji)電(dian)設(she)備中(zhong)。
交(jiao)(jiao)e電(dian)異步(bu)電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)分(fen)為(wei)(wei)感應電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)和交(jiao)(jiao)流換(huan)向(xiang)器電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)。感應電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)又分(fen)為(wei)(wei)單相異步(bu)電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)、交(jiao)(jiao)直流兩用(yong)電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)和推(tui)斥電(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)。
基本原理(li)：
a.當三(san)(san)(san)相(xiang)異(yi)步電(dian)機接入三(san)(san)(san)相(xiang)交-電(dian)源時，三(san)(san)(san)相(xiang)定(ding)子繞組流過三(san)(san)(san)相(xiang)對(dui)稱電(dian)流產生的(de)三(san)(san)(san)相(xiang)磁(ci)(ci)動勢(shi)（定(ding)子旋轉磁(ci)(ci)動勢(shi)）并產生旋轉磁(ci)(ci)場。
b.該旋轉磁場與轉子導體有相對切割運動,根據電磁感應原理,轉子導體產生感應電動勢并產生感應電流。
c.根據電磁(ci)(ci)力定律，載流(liu)的(de)轉(zhuan)(zhuan)(zhuan)子導體(ti)在磁(ci)(ci)場中受(shou)到電磁(ci)(ci)力作用(yong)，形成(cheng)電磁(ci)(ci)轉(zhuan)(zhuan)(zhuan)矩(ju)，驅(qu)動轉(zhuan)(zhuan)(zhuan)子旋轉(zhuan)(zhuan)(zhuan)，當(dang)電動機軸上帶(dai)機械(xie)負載時，便(bian)向外輸出機械(xie)能。
