微(wei)(wei)型(xing)直(zhi)流電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)指的(de)(de)(de)是電(dian)(dian)(dian)(dian)(dian)壓在(zai)24v以下，尺(chi)寸(cun)小(xiao)，比如38mm，包(bao)含直(zhi)流電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)和減速器(qi)的(de)(de)(de)機(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)一(yi)體(ti)化(hua)傳動(dong)(dong)機(ji)(ji)(ji)械裝(zhuang)置，也可(ke)以稱為微(wei)(wei)型(xing)直(zhi)流減速電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，通常(chang)簡(jian)稱為微(wei)(wei)型(xing)直(zhi)流電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)；微(wei)(wei)型(xing)直(zhi)流電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)和齒(chi)輪減速的(de)(de)(de)區別在(zai)于輸出或輸入為直(zhi)流電(dian)(dian)(dian)(dian)(dian)能的(de)(de)(de)旋轉電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)，減速器(qi)（齒(chi)輪箱）是一(yi)樣的(de)(de)(de)；微(wei)(wei)型(xing)直(zhi)流電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)種類可(ke)分為特種電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)、電(dian)(dian)(dian)(dian)(dian)磁式電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)和永磁式電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)：

  1.特(te)種電機一般無(wu)繞組，傳(chuan)動(dong)較為復雜，作為電機的一種已自成體系。

  2.電磁式(shi)電動機因(yin)勵磁方式(shi)不同。

  3.永(yong)磁式(shi)電(dian)動(dong)(dong)(dong)機性能(neng)與(yu)電(dian)磁式(shi)并勵電(dian)動(dong)(dong)(dong)機相近，起動(dong)(dong)(dong)轉(zhuan)矩較大(da)，機械特性硬，負載變化時轉(zhuan)速變化不(bu)大(da)，適用(yong)于小功率直流(liu)傳動(dong)(dong)(dong)，如電(dian)動(dong)(dong)(dong)玩(wan)具、電(dian)動(dong)(dong)(dong)工具、音響設備、汽(qi)車電(dian)器等。

  微型直流電機按照結構、性能特點又可以分為有刷直流減速電機、無刷直流減速電機，兩(liang)者各有(you)不同，應(ying)用于不同的(de)(de)產品(pin)；在實(shi)際(ji)應(ying)用中無(wu)刷(shua)直流減(jian)速(su)電機的(de)(de)性能、壽(shou)命均要(yao)優(you)越于有(you)刷(shua)直流減(jian)速(su)電機，本文將不再(zai)描述。微型(xing)直流電機的(de)(de)選型(xing)原則：轉(zhuan)(zhuan)速(su)越快，轉(zhuan)(zhuan)矩越小，反之越大；在選型(xing)時詳細了解減(jian)速(su)機的(de)(de)轉(zhuan)(zhuan)速(su)、電壓(ya)和傳動比。

? 微型直(zhi)流(liu)電機應(ying)用(yong)于一些小(xiao)產品、工具(ju)上，比如玩具(ju)、電子產品、個人護理工具(ju)、智能家居(ju)、儀(yi)表儀(yi)器、辦公設備、家用(yong)電器、數碼(ma)產品等領域。