微電機,全稱“微型減速電機”,是指直徑小于160mm或額定功率小于750W的電機。微電機常用于控制系統或傳動機械負載中,用于實現機電信號或能量的檢測、解析運算、放大、執行或轉換等功能。
微電(dian)(dian)(dian)機(ji)門類繁多,大體可分為直流(liu)電(dian)(dian)(dian)機(ji)、交流(liu)電(dian)(dian)(dian)機(ji)、自整(zheng)角電(dian)(dian)(dian)機(ji)、步進電(dian)(dian)(dian)機(ji)、旋(xuan)轉變壓(ya)器(qi)、軸角編碼器(qi)、交直流(liu)兩用電(dian)(dian)(dian)機(ji)、測(ce)速發電(dian)(dian)(dian)機(ji)、感應同(tong)步器(qi)、直線電(dian)(dian)(dian)機(ji)、減速電(dian)(dian)(dian)機(ji)、電(dian)(dian)(dian)機(ji)機(ji)組(zu)和其他特種(zhong)電(dian)(dian)(dian)機(ji)等13大類。
直流無刷電(dian)機:它是(shi)近(jin)幾(ji)年小電(dian)(dian)機(ji)(ji)行業發(fa)展快(kuai)的品(pin)種(zhong),隨著視聽產品(pin)“小、輕、薄”化(hua)和家品(pin)的靜音(yin)化(hua)以及豪華轎車需求量增(zeng)(zeng)多,直流(liu)無刷(shua)電(dian)(dian)機(ji)(ji)需求迅速增(zeng)(zeng)加(jia)。它用電(dian)(dian)子換向替代了(le)電(dian)(dian)刷(shua)和換向器,具有(you)可(ke)靠、率、壽命長和調(diao)速方便的特點,各國都加(jia)快(kuai)了(le)開(kai)發(fa)新產品(pin)的速度。日本(ben)不少(shao)公(gong)司已將直流(liu)無刷(shua)電(dian)(dian)機(ji)(ji)應(ying)用到數碼照相機(ji)(ji)、微(wei)型收錄(lu)機(ji)(ji)、攝影(ying)機(ji)(ji)、打印(yin)機(ji)(ji)、存儲(chu)傳動器、手機(ji)(ji)以及汽(qi)車空調(diao)、洗衣(yi)機(ji)(ji)、吸塵(chen)器、電(dian)(dian)動車和心(xin)臟泵等(deng)領域。
直(zhi)(zhi)線電(dian)機:它具有結構簡單、無(wu)接觸運(yun)動(dong)(dong)、噪音低、速度和(he)精度、控制容易、維護方便和(he)可靠性等特點。隨著(zhu)工業自動(dong)(dong)化(hua)水平的(de)不斷創新,直(zhi)(zhi)線步進電(dian)機的(de)應用(yong)領域(yu)越(yue)來越(yue)廣(guang)。目前已有不少自動(dong)(dong)化(hua)設備中應用(yong)直(zhi)(zhi)線電(dian)機,如(ru)速沖床、速切削機、衛星天線、磁頭傳動(dong)(dong)器、繪圖(tu)機、打(da)印機、復印機、掃描儀和(he)電(dian)動(dong)(dong)門(men)等。
速(su)(su)(su)動(dong)(dong)壓軸(zhou)(zhou)(zhou)承電(dian)(dian)機(ji):為了滿足(zu)電(dian)(dian)子產品的(de)小(xiao)(xiao)(xiao)型(xing)化要求,小(xiao)(xiao)(xiao)電(dian)(dian)機(ji)向(xiang)速(su)(su)(su)化發(fa)展是一種技術發(fa)展動(dong)(dong)向(xiang),如計算機(ji)外(wai)設的(de)存儲密(mi)度(du)迅速(su)(su)(su)提,其配套的(de)主軸(zhou)(zhou)(zhou)無刷電(dian)(dian)機(ji)在8000r/min以上速(su)(su)(su)運(yun)轉,不少小(xiao)(xiao)(xiao)電(dian)(dian)機(ji)甚至在20000r/min以上運(yun)轉,為了小(xiao)(xiao)(xiao)電(dian)(dian)機(ji)在速(su)(su)(su)運(yun)轉下(xia)低(di)噪音,并(bing)在速(su)(su)(su)動(dong)(dong)轉下(xia)仍(reng)能運(yun)行平穩、抖(dou)晃小(xiao)(xiao)(xiao)、壽命(ming)長,日(ri)本許多(duo)公司(si)已開(kai)發(fa)生產速(su)(su)(su)動(dong)(dong)壓軸(zhou)(zhou)(zhou)承電(dian)(dian)機(ji),動(dong)(dong)壓軸(zhou)(zhou)(zhou)承有空(kong)氣和液態動(dong)(dong)壓軸(zhou)(zhou)(zhou)承兩種。目前應用空(kong)氣動(dong)(dong)壓軸(zhou)(zhou)(zhou)承較多(duo),尤其適用于速(su)(su)(su)運(yun)行下(xia),要求噪音小(xiao)(xiao)(xiao),抖(dou)晃小(xiao)(xiao)(xiao)的(de)DVD、HDD、CD-ROM等主軸(zhou)(zhou)(zhou)電(dian)(dian)機(ji)。
微(wei)小型電(dian)機:小(xiao)(xiao)型(xing)計算機(ji)(ji)、、彈子機(ji)(ji)、健(jian)(jian)康保健(jian)(jian)、美(mei)容按摩(mo)(mo)、老人和小(xiao)(xiao)孩(hai)玩具、移動通信等領(ling)域大(da)量(liang)(liang)使(shi)用微小(xiao)(xiao)型(xing)電(dian)機(ji)(ji),如手機(ji)(ji)、玩具汽車、電(dian)動牙刷用的(de)微小(xiao)(xiao)型(xing)電(dian)機(ji)(ji),近幾年來需(xu)求迅速增(zeng)加,尤其是小(xiao)(xiao)電(dian)機(ji)(ji)直(zhi)徑3mm至6mm(空心(xin)型(xing)和實心(xin)型(xing))、鈕扣(kou)式電(dian)機(ji)(ji)直(zhi)徑8mm至12mm的(de)需(xu)要量(liang)(liang)劇增(zeng)。PC機(ji)(ji)、家用、老年人健(jian)(jian)康按摩(mo)(mo)和玩具、婦女健(jian)(jian)美(mei)按摩(mo)(mo)、小(xiao)(xiao)孩(hai)智能玩具及小(xiao)(xiao)家電(dian)中(zhong)也需(xu)要大(da)量(liang)(liang)微小(xiao)(xiao)型(xing)電(dian)機(ji)(ji),這(zhe)些(xie)產(chan)品(pin)大(da)部分是消費類產(chan)品(pin)。
超(chao)微(wei)型(xing)電(dian)(dian)機(ji):領(ling)(ling)域(yu)是(shi)微(wei)機(ji)械電(dian)(dian)子技術應用(yong)具代表(biao)性的(de)領(ling)(ling)域(yu),微(wei)創(chuang)傷內窺診療、精密顯(xian)微(wei)外科手術機(ji)械及微(wei)機(ji)器人等都需(xu)要體積(ji)很小、功率又(you)足夠大(da)的(de)度靈(ling)巧、度柔順性的(de)超(chao)微(wei)型(xing)小電(dian)(dian)機(ji)。超(chao)微(wei)型(xing)電(dian)(dian)機(ji)是(shi)微(wei)機(ji)械電(dian)(dian)子系(xi)統的(de)關(guan)鍵執(zhi)行和(he)(he)傳動(dong)部件,隨著超(chao)微(wei)型(xing)電(dian)(dian)機(ji)制造水平(ping)不(bu)斷完善(shan)和(he)(he)成熟,其產量(liang)和(he)(he)應用(yong)領(ling)(ling)域(yu)不(bu)斷擴大(da),其市(shi)場潛(qian)力是(shi)巨大(da)的(de),有望成為新的(de)經濟(ji)增長點。
片狀(zhuang)電(dian)(dian)機(ji)(ji):隨(sui)(sui)著電(dian)(dian)子產(chan)品向小(xiao)型化(hua)、輕量化(hua)、薄(bo)型化(hua)方向發展(zhan),其配套的小(xiao)電(dian)(dian)機(ji)(ji)也(ye)要求向“微(wei)、輕、薄(bo)”方向發展(zhan),開發片狀(zhuang)電(dian)(dian)機(ji)(ji)就(jiu)成了必然趨勢。片狀(zhuang)電(dian)(dian)機(ji)(ji)的原(yuan)理與傳統的直流電(dian)(dian)機(ji)(ji)并(bing)無(wu)多(duo)(duo)大區別。日本已(yi)有(you)多(duo)(duo)家公司生產(chan)片狀(zhuang)電(dian)(dian)機(ji)(ji),并(bing)已(yi)被應(ying)用到軟、硬、光盤傳動(dong)器、隨(sui)(sui)身聽、錄音機(ji)(ji)、錄像(xiang)機(ji)(ji)、攝(she)像(xiang)機(ji)(ji)、數碼照相機(ji)(ji)、移動(dong)通信以(yi)及微(wei)型設備傳動(dong)系統中。
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