電動(dong)牙刷是(shi)近幾年出現的(de)新產品，在國外(wai)已掀起(qi)了口腔保健領域(yu)的(de)一(yi)場革(ge)命(ming)。電動(dong)牙刷通過電動(dong)機(ji)芯的(de)快速旋(xuan)轉(zhuan)或震動(dong)，使刷頭產生頻(pin)震動(dong)，瞬(shun)間將牙膏(gao)分解成細微泡沫(mo)，深入清(qing)潔牙縫；與此同時，刷毛的(de)顫動(dong)能(neng)促進口腔的(de)血液循環(huan)，對牙齦組織有按摩效果。

從原理(li)上分(fen)，電動(dong)(dong)牙(ya)(ya)(ya)(ya)(ya)刷(shua)(shua)有兩大(da)類(lei)：旋轉(zhuan)與振(zhen)動(dong)(dong)。旋轉(zhuan)類(lei)的牙(ya)(ya)(ya)(ya)(ya)刷(shua)(shua)原理(li)簡單，就是電動(dong)(dong)機傳動(dong)(dong)圓形刷(shua)(shua)頭旋轉(zhuan)，在執行普通刷(shua)(shua)牙(ya)(ya)(ya)(ya)(ya)動(dong)(dong)作的同時(shi)加強摩(mo)擦效果，旋轉(zhuan)類(lei)的牙(ya)(ya)(ya)(ya)(ya)刷(shua)(shua)噪音(yin)大(da)，牙(ya)(ya)(ya)(ya)(ya)面清洗很干凈，牙(ya)(ya)(ya)(ya)(ya)縫(feng)清洗相(xiang)對較弱，但(dan)對牙(ya)(ya)(ya)(ya)(ya)齒磨損大(da)，不建議長期使(shi)用。振(zhen)動(dong)(dong)類(lei)型的牙(ya)(ya)(ya)(ya)(ya)刷(shua)(shua)更復雜(za)，從價格上來看也(ye)(ye)更端。振(zhen)動(dong)(dong)類(lei)型的牙(ya)(ya)(ya)(ya)(ya)刷(shua)(shua)內部有一(yi)個電傳動(dong)(dong)的振(zhen)動(dong)(dong)電機，能讓(rang)刷(shua)(shua)頭產(chan)生(sheng)(sheng)垂直于刷(shua)(shua)柄方向(xiang)的頻(pin)擺動(dong)(dong)，但(dan)擺動(dong)(dong)的幅度很小。刷(shua)(shua)牙(ya)(ya)(ya)(ya)(ya)的時(shi)候一(yi)方面頻(pin)擺動(dong)(dong)的刷(shua)(shua)頭能完成(cheng)洗刷(shua)(shua)牙(ya)(ya)(ya)(ya)(ya)齒的動(dong)(dong)作，另(ling)一(yi)方面每分(fen)鐘的振(zhen)動(dong)(dong)也(ye)(ye)讓(rang)口腔(qiang)里的牙(ya)(ya)(ya)(ya)(ya)膏和水的混合物產(chan)生(sheng)(sheng)大(da)量(liang)微小的氣泡(pao)，氣泡(pao)爆裂時(shi)產(chan)生(sheng)(sheng)的壓(ya)力可以深入牙(ya)(ya)(ya)(ya)(ya)縫(feng)清潔污垢。

智能牙(ya)刷電(dian)機也稱(cheng)為(wei)電(dian)動(dong)牙(ya)刷馬達、齒(chi)輪(lun)箱，用(yong)于智能電(dian)動(dong)牙(ya)刷上的動(dong)力(li)傳動(dong)裝置；這類微型減(jian)速(su)電(dian)機屬(shu)于非(fei)品，根據電(dian)動(dong)牙(ya)刷的參數定制(zhi)而(er)成(cheng)，電(dian)壓(ya)通常在24v以下，直徑尺寸38mm以下，電(dian)機齒(chi)輪(lun)箱傳動(dong)結構材質分別采用(yong)塑膠、金屬(shu)制(zhi)造而(er)成(cheng)；目前主流(liu)的傳動(dong)方(fang)式(shi)分為(wei)：

快(kuai)貓下載地址:①有齒輪的傳(chuan)統電機動(dong)力(li)輸出系統——微型電機；

快貓下載地址:②非(fei)齒輪動力輸出系統(tong)——磁懸(xuan)動力系統(tong)（MTIC）。

電(dian)機（電(dian)動(dong)(dong)機、馬(ma)達(da)）是(shi)電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)的(de)(de)(de)(de)動(dong)(dong)力(li)(li)來(lai)源，也是(shi)部件，通常(chang)需要(yao)減速器來(lai)加持傳(chuan)動(dong)(dong)方(fang)(fang)式(shi)(shi)和力(li)(li)矩。電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)使用的(de)(de)(de)(de)微(wei)型直流電(dian)機大致(zhi)可分為兩種：一種是(shi)單向旋轉(zhuan)的(de)(de)(de)(de)，類似(si)四驅車的(de)(de)(de)(de)馬(ma)達(da)。此類電(dian)機一般(ban)通過(guo)傳(chuan)動(dong)(dong)裝置（齒(chi)輪(lun)(lun)(lun)(lun)、傳(chuan)動(dong)(dong)桿等(deng)），將馬(ma)達(da)的(de)(de)(de)(de)單向圓周(zhou)旋轉(zhuan)變為刷(shua)頭的(de)(de)(de)(de)左右旋轉(zhuan)或其他(ta)運動(dong)(dong)方(fang)(fang)式(shi)(shi)；目前市場上每個的(de)(de)(de)(de)智能電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)齒(chi)輪(lun)(lun)(lun)(lun)箱(xiang)都是(shi)按(an)照項 目來(lai)立項研究、發開性能的(de)(de)(de)(de)電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)電(dian)機；傳(chuan)統的(de)(de)(de)(de)電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)是(shi)采用直流有刷(shua)電(dian)機與渦輪(lun)(lun)(lun)(lun)蝸桿的(de)(de)(de)(de)傳(chuan)動(dong)(dong)方(fang)(fang)式(shi)(shi)來(lai)實現牙(ya)(ya)(ya)刷(shua)的(de)(de)(de)(de)轉(zhuan)動(dong)(dong)，但由(you)于齒(chi)輪(lun)(lun)(lun)(lun)的(de)(de)(de)(de)精(jing)度及(ji)傳(chuan)動(dong)(dong)方(fang)(fang)式(shi)(shi)的(de)(de)(de)(de)限制，在(zai)刷(shua)牙(ya)(ya)(ya)的(de)(de)(de)(de)過(guo)程中隨(sui)著力(li)(li)度增大導致(zhi)輸出的(de)(de)(de)(de)力(li)(li)矩、轉(zhuan)速降低。兆威機電(dian)在(zai)電(dian)動(dong)(dong)牙(ya)(ya)(ya)刷(shua)齒(chi)輪(lun)(lun)(lun)(lun)箱(xiang)的(de)(de)(de)(de)開發上擺脫(tuo)了傳(chuan)動(dong)(dong)渦輪(lun)(lun)(lun)(lun)蝸桿這種不可靠的(de)(de)(de)(de)傳(chuan)動(dong)(dong)方(fang)(fang)式(shi)(shi)，采用永磁(ci)直流電(dian)機與精(jing)密傳(chuan)動(dong)(dong)行星(xing)結(jie)構的(de)(de)(de)(de)齒(chi)輪(lun)(lun)(lun)(lun)箱(xiang)配合使得牙(ya)(ya)(ya)刷(shua)的(de)(de)(de)(de)輸出力(li)(li)度均衡、轉(zhuan)速恒定(ding)。