IC693ALG391
有刷直流電機特點
有刷直流電動機的特點如下所示。
優點
有 2 根導線，施加直流電壓即可旋轉。
反轉電源的極性會反轉旋轉方向。
由于使用了永磁體，直流電機結構緊湊、重量輕且效率高。
起動力矩大，可控性好。
扭矩與電壓(電流)成正比。
可以用干電池和電池操作。
低成本
缺點
電刷磨損會縮短使用壽命。
產生機械噪音。
產生電噪聲。
由于直流電機只需連接直流電源即可運行，因此可用于多種應用。然而，由于電刷與換向器相互滑動會導致電刷磨損，因此需要對磨損粉進行清理、更換電刷等定期維護。隨著電機使用數量的增加，維護變得越來越困難，這就增加了對長壽命免維護電機的需求。
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