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直流無刷電機是(shi)由(you)電動機主(zhu)體和驅動器(qi)組成的,是一種典型的機電一體化的產品(pin)。
無刷(shua)電(dian)機是(shi)指無電(dian)刷(shua)和換向器(或集電(dian)環(huan))的電機,又稱無換向(xiang)器電機。早在十九世紀誕生(sheng)電(dian)(dian)(dian)(dian)機(ji)(ji)的時候,產生(sheng)的實用性電(dian)(dian)(dian)(dian)機(ji)(ji)就是(shi)無(wu)刷形式(shi),即交流鼠(shu)籠式(shi)異步(bu)(bu)電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji),這種電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)得(de)到了廣泛(fan)的應用。但是(shi),異步(bu)(bu)電(dian)(dian)(dian)(dian)動(dong)機(ji)(ji)有許(xu)多(duo)無(wu)法克服的缺陷,以(yi)致電(dian)(dian)(dian)(dian)機(ji)(ji)技(ji)術(shu)發展緩慢。
上世紀中(zhong)誕生了(le)晶(jing)體(ti)管,因而(er)采用晶(jing)體(ti)管換(huan)向(xiang)電路(lu)代替電刷與換(huan)向(xiang)器的直流(liu)無刷電機(ji)(ji)就應運而(er)生了(le)。這種新型無刷電機(ji)(ji)稱(cheng)為電子換(huan)向(xiang)式直流(liu)電機(ji)(ji),它(ta)克服了(le)第一代無刷電機(ji)(ji)的缺(que)陷(xian)。