故障1:在熱風檔電機不轉,電熱絲不熱也無冷風。
第一步:檢(jian)查供電保險絲是否(fou)熔(rong)斷,是則更換。否(fou)則繼續下面的。
第二步:查(cha)電源插頭、插座是(shi)否插好,接觸不良。
第三步:查(cha)電(dian)源線是(shi)否(fou)內部有暗(an)斷,手(shou)柄內焊(han)(han)(han)點是(shi)否(fou)脫(tuo)焊(han)(han)(han)。(修復或更換電(dian)源線;拆(chai)開手(shou)柄,重焊(han)(han)(han)焊(han)(han)(han)點)
第四步:查選擇電吹風開關(guan)是否嚴(yan)重氧化(hua),接觸不(bu)良或其中是否裂斷。(磨光擦拭處理或更(geng)換(huan)新(xin)開關(guan))
故障2:在熱風檔電熱絲發熱,但電機不轉,前筒過熱但無熱風吹出
第一步:查電動機引(yin)出(chu)線是否脫焊或(huo)折斷(換新線或(huo)補焊)
第二步:查選擇開關是(shi)否發黑或嚴(yan)重氧化(磨(mo)光或則換開關)
第三(san)步:查電動機架或(huo)風葉是否因碰撞(zhuang)偏斜(xie),移位或(huo)變(bian)形(xing)
第四步:檢查電動機錠子和轉子之(zhi)間是(shi)否有雜(za)物
第(di)五步(bu):查電動機(ji)錠子和轉子是否相碰
第(di)六步:查電動機(ji)錠子繞組或電樞(shu)組間是否斷(duan)路或短(duan)路(更換新電機(ji)或修理(li))
第七步(bu):查(cha)電刷(shua)或換(huan)向器是否接觸(chu)不(bu)良或換(huan)向起短路
故障3:在熱風檔電機運轉,電熱絲不熱,只有冷風吹出
第一步:查電熱絲引(yin)出線是否脫焊(han)或折(zhe)斷(duan)
第二步:查選擇開關是否接觸不良
第三步:查固定(ding)電(dian)熱絲的螺釘是否松動或者(zhe)氧化過多而接觸不良
第四步:查電熱絲(si)燒斷應更新電熱絲(si)或想辦法連(lian)上
故障4:電吹風有漏電現象
第一(yi)步:細觀(guan)察是否電機繞組受潮(烘干)
第二步:查電機繞組(zu)(zu)是否老化(hua),絕緣強(qiang)度下降(jiang)(更(geng)換電機或繞組(zu)(zu))
第三步:拆開電機(ji),查繞組是否有(you)破損或者碰(peng)殼現象
第四步:查(cha)引出線是否有破損碰殼(換(huan)線)
第五步:查電熱(re)絲(si)是否有碰觸外殼現象(xiang)
故障5:吹出的熱風風量小過熱
第一步(bu):查進(jin)風口是否被擋過多
第二步:查風葉(xie)是否有同(tong)外殼輕微摩擦(ca)現象(xiang)使轉(zhuan)速減慢
第三步:查是(shi)否軸承缺油是(shi)否過緊
第四步:查錠子饒組或電(dian)樞繞組是(shi)否局部短路(lu)
第五步:查電刷是否壓力(li)過大
電吹風是(shi)常用(yong)的(de)(de)小(xiao)家(jia)電(dian),由(you)于(yu)電(dian)熱絲發(fa)熱功(gong)率大,發(fa)熱集中(zhong),其連接部分很容易松動。常見(jian)的(de)(de)連接方法(fa)是(shi)用(yong)黃銅鉚釘將電(dian)熱絲等導(dao)(dao)線(xian)鉚緊(jin)在(zai)云母板(ban)上。黃銅、鎳鉻絲、銅導(dao)(dao)線(xian)三者(zhe)的(de)(de)熱膨脹(zhang)系(xi)數(shu)不(bu)(bu)同,使(shi)用(yong)一段(duan)(duan)時間后鉚接點就會(hui)松動,導(dao)(dao)致接觸不(bu)(bu)良甚至打(da)火(huo)。找(zhao)一根醫用(yong)10號(hao)以上的(de)(de)不(bu)(bu)銹鋼(gang)(gang)注射(she)針頭,切取5~10mm長(chang)的(de)(de)一小(xiao)段(duan)(duan),穿(chuan)卡在(zai)原來(lai)的(de)(de)黃銅鉚釘孔中(zhong)作支點。因(yin)為紫銅的(de)(de)熱脹(zhang)系(xi)數(shu)比不(bu)(bu)銹鋼(gang)(gang)大,當溫度升(sheng)高后不(bu)(bu)但不(bu)(bu)會(hui)松動,反而會(hui)接觸得更緊(jin),筆者(zhe)用(yong)此(ci)法(fa)修(xiu)理過多種電(dian)熱器件(jian)都很成功(gong),長(chang)時間使(shi)用(yong)導(dao)(dao)電(dian)都十分良好(hao)。
電吹風構成部件:
電吹風一般由殼體、電動機、風葉、電熱元件、手柄和開關等部件構成。電吹風的(de)(de)殼體一般(ban)采(cai)(cai)用(yong)薄鐵板(ban)或銅板(ban)沖制(zhi)焊(han)接,再鍍上鎳鉻,也有的(de)(de)采(cai)(cai)用(yong)工(gong)(gong)程塑(su)料壓制(zhi)而(er)成。電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)是電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)的(de)(de)核心部件(jian),一般(ban)采(cai)(cai)用(yong)串激式(shi)(shi)、罩極(ji)式(shi)(shi)和(he)(he)永磁式(shi)(shi)三種。采(cai)(cai)用(yong)罩極(ji)式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)速(su)低,但風(feng)(feng)(feng)(feng)溫高,故適應于吹(chui)(chui)(chui)干(gan)濕發和(he)(he)整理(li)發型;采(cai)(cai)用(yong)串激式(shi)(shi)和(he)(he)永磁式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)風(feng)(feng)(feng)(feng)速(su)高而(er)風(feng)(feng)(feng)(feng)溫低,更適應于吹(chui)(chui)(chui)塵及物(wu)品(pin)烘(hong)干(gan)等(deng)。永磁式(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)工(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)壓較低,且是直流,這需要(yao)增加(jia)降(jiang)壓整流裝(zhuang)置。電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)的(de)(de)風(feng)(feng)(feng)(feng)葉(xie)大都安(an)裝(zhuang)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的(de)(de)軸端(duan)上,位(wei)于電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)的(de)(de)尾部,有金(jin)屬扇葉(xie)和(he)(he)塑(su)料扇葉(xie)兩種。電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)熱(re)元件(jian)一般(ban)采(cai)(cai)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)熱(re)絲繞制(zhi)而(er)成,電(dian)(dian)(dian)(dian)(dian)(dian)熱(re)絲有扁形和(he)(he)圓線兩種,裝(zhuang)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)吹(chui)(chui)(chui)風(feng)(feng)(feng)(feng)的(de)(de)出(chu)風(feng)(feng)(feng)(feng)口附近。工(gong)(gong)作(zuo)時,電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)帶(dai)動(dong)(dong)扇葉(xie)旋轉,由吸風(feng)(feng)(feng)(feng)口吸入冷風(feng)(feng)(feng)(feng),然后由出(chu)風(feng)(feng)(feng)(feng)口吹(chui)(chui)(chui)出(chu)。
電吹風的(de)開(kai)關的(de)撓板式、推(tui)桿(gan)式和按鈕式三(san)種,一般有“熱(re)(re)風(feng)(feng)(feng)”、“冷(leng)(leng)(leng)(leng)風(feng)(feng)(feng)”和“停”三(san)擋,用不同的(de)顏(yan)色作標(biao)記(ji);白色表示(shi)“停止”,紅色表示(shi)送“熱(re)(re)風(feng)(feng)(feng)”,藍色表示(shi)送“冷(leng)(leng)(leng)(leng)風(feng)(feng)(feng)”。電動機(ji)旋(xuan)轉時,若開(kai)關置(zhi)“冷(leng)(leng)(leng)(leng)風(feng)(feng)(feng)”位置(zhi),這時電熱(re)(re)元件是(shi)斷開(kai)的(de),出風(feng)(feng)(feng)口吹出的(de)是(shi)冷(leng)(leng)(leng)(leng)風(feng)(feng)(feng);若置(zhi)“熱(re)(re)風(feng)(feng)(feng)”位置(zhi),這時電熱(re)(re)元件是(shi)接通的(de),則吹出的(de)是(shi)熱(re)(re)風(feng)(feng)(feng)。