附(fu)帶的(de)要(yao)求(qiu)則(ze)還有高(gao)的(de)居里點，高(gao)的(de)電(dian)(dian)阻率(lv)(lv)(lv)(lv)，良好的(de)機械(xie)強度等。新(xin)發布(bu)的(de)“軟磁(ci)(ci)鐵氧(yang)(yang)體(ti)(ti)材(cai)(cai)(cai)(cai)料分類”行(xing)業標準（等同IEC1332-1995），將(jiang)高(gao)磁(ci)(ci)通(tong)密度應用(yong)(yong)的(de)功(gong)率(lv)(lv)(lv)(lv)鐵氧(yang)(yang)體(ti)(ti)材(cai)(cai)(cai)(cai)料分為(wei)(wei)五類，見表1。每類鐵氧(yang)(yang)體(ti)(ti)材(cai)(cai)(cai)(cai)料除(chu)了對(dui)振幅(fu)磁(ci)(ci)導率(lv)(lv)(lv)(lv)和(he)功(gong)率(lv)(lv)(lv)(lv)損耗提(ti)出(chu)要(yao)求(qiu)外，還提(ti)出(chu)了“性能(neng)因(yin)子(zi)(zi)”參(can)(can)數(shu)（該參(can)(can)數(shu)將(jiang)在下面進一步(bu)敘述(shu)）。從PW1～PW5類別(bie)，其適(shi)用(yong)(yong)工作頻(pin)(pin)率(lv)(lv)(lv)(lv)是逐(zhu)步(bu)提(ti)高(gao)的(de)，如(ru)(ru)PW1材(cai)(cai)(cai)(cai)料，適(shi)用(yong)(yong)頻(pin)(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)15～100kHz，主要(yao)應用(yong)(yong)于回掃變(bian)壓器(qi)磁(ci)(ci)芯；PW2材(cai)(cai)(cai)(cai)料，適(shi)用(yong)(yong)頻(pin)(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)25～200kHz，主要(yao)應用(yong)(yong)于開(kai)關電(dian)(dian)源變(bian)壓器(qi)磁(ci)(ci)芯；PW3材(cai)(cai)(cai)(cai)料，適(shi)用(yong)(yong)頻(pin)(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)100～300kHz；PW4材(cai)(cai)(cai)(cai)料適(shi)用(yong)(yong)頻(pin)(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)300kHz～1MHz；PW5材(cai)(cai)(cai)(cai)料適(shi)用(yong)(yong)頻(pin)(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)1～3MHz。現在國內已能(neng)生(sheng)產相當于PW1～PW3材(cai)(cai)(cai)(cai)料，PW4材(cai)(cai)(cai)(cai)料只能(neng)小量試生(sheng)產，PW5材(cai)(cai)(cai)(cai)料尚有待開(kai)發。3．變(bian)壓器(qi)可(ke)傳輸功(gong)率(lv)(lv)(lv)(lv)眾所周(zhou)知，變(bian)壓器(qi)的(de)可(ke)傳輸出(chu)功(gong)率(lv)(lv)(lv)(lv)正比(bi)于工作頻(pin)(pin)率(lv)(lv)(lv)(lv)f，蕞(zui)大(da)可(ke)允許磁(ci)(ci)通(tong)Bmax，（或可(ke)允許磁(ci)(ci)能(neng)偏移(yi)ΔB）和(he)磁(ci)(ci)路截(jie)面積Ae，并表示(shi)為(wei)(wei)：Pth=CfBmaxAeWd(1)式中，C棗與開(kai)關電(dian)(dian)源電(dian)(dian)路工作型(xing)式有關的(de)系(xi)數(shu)（如(ru)(ru)推挽(wan)式C=1；正向變(bian)換(huan)器(qi)C=；反向變(bian)換(huan)器(qi)C=）Wd棗繞組設計參(can)(can)數(shu)（包含電(dian)(dian)流密度S，占空因(yin)子(zi)(zi)fcu，繞組截(jie)面積AN等）。表1功(gong)率(lv)(lv)(lv)(lv)鐵氧(yang)(yang)體(ti)(ti)材(cai)(cai)(cai)(cai)料分類類別(bie)fmax1)kHzfkHzB2)mTμa3)性能(neng)因(yin)子(zi)(zi)。21. 電(dian)(dian)源變(bian)壓器(qi)需要(yao)符(fu)合國家(jia)相關標準和(he)規(gui)范，確(que)保公共安全和(he)電(dian)(dian)力供應的(de)質(zhi)量。安徽洗衣(yi)機電(dian)(dian)源變(bian)壓器(qi)廠(chang)家(jia)

2）變壓(ya)器(qi)(qi)(qi)(qi)(qi)油使變壓(ya)器(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)鐵芯和(he)繞組(zu)之(zhi)間得(de)到(dao)冷(leng)卻。變壓(ya)器(qi)(qi)(qi)(qi)(qi)運(yun)行中，靠近繞組(zu)與鐵芯的(de)(de)(de)(de)油受熱(re)(re)后(hou)溫(wen)度升(sheng)高，體積膨脹(zhang)，比重(zhong)減小(xiao)而上升(sheng)，經冷(leng)卻裝(zhuang)置冷(leng)卻后(hou)再進(jin)入(ru)變壓(ya)器(qi)(qi)(qi)(qi)(qi)油箱(xiang)的(de)(de)(de)(de)底部(bu)，從(cong)而形成油的(de)(de)(de)(de)循環。在循環過程中，將(jiang)熱(re)(re)量散發給(gei)冷(leng)卻裝(zhuang)（3）變壓(ya)器(qi)(qi)(qi)(qi)(qi)油能使絕緣物(wu)（如3脈(mo)(mo)沖電(dian)(dian)源(yuan)(yuan)(yuan)變壓(ya)器(qi)(qi)(qi)(qi)(qi)要用交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)源(yuan)(yuan)(yuan)供(gong)電(dian)(dian)線(xian)圈(quan)嗎(ma)所(suo)謂(wei)脈(mo)(mo)沖變壓(ya)器(qi)(qi)(qi)(qi)(qi)，原邊(bian)要輸(shu)入(ru)脈(mo)(mo)沖源(yuan)(yuan)(yuan)，脈(mo)(mo)沖源(yuan)(yuan)(yuan)不一(yi)定(ding)是(shi)交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)，比如正弦交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)經過橋(qiao)整流(liu)(liu)(liu)(liu)后(hou)是(shi)脈(mo)(mo)動直流(liu)(liu)(liu)(liu)，這也是(shi)脈(mo)(mo)沖源(yuan)(yuan)(yuan)，另外PWM波(bo)(bo)形（低為0，高為5V的(de)(de)(de)(de)方波(bo)(bo)）也是(shi)脈(mo)(mo)沖源(yuan)(yuan)(yuan)，但不是(shi)我們所(suo)說的(de)(de)(de)(de)交(jiao)(jiao)流(liu)(liu)(liu)(liu)電(dian)(dian)源(yuan)(yuan)(yuan)；所(suo)以脈(mo)(mo)沖變壓(ya)器(qi)(qi)(qi)(qi)(qi)輸(shu)入(ru)的(de)(de)(de)(de)脈(mo)(mo)沖源(yuan)(yuan)(yuan)，是(shi)由能產生脈(mo)(mo)沖源(yuan)(yuan)(yuan)的(de)(de)(de)(de)電(dian)(dian)路給(gei)出的(de)(de)(de)(de)，比較常(chang)見(jian)的(de)(de)(de)(de)是(shi)PWM或其他(ta)窄方波(bo)(bo)。希望可(ke)(ke)以幫到(dao)你(ni)4電(dian)(dian)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)變壓(ya)器(qi)(qi)(qi)(qi)(qi)響(xiang)該怎么(me)去處(chu)理(li)電(dian)(dian)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)變壓(ya)器(qi)(qi)(qi)(qi)(qi)響(xiang)的(de)(de)(de)(de)處(chu)理(li)方法:應該是(shi)有(you)(you)(you)空氣(qi)進(jin)入(ru),放一(yi)會兒就沒有(you)(you)(you)了(le)。另外需要檢查(cha)單向安(an)全(quan)閥,電(dian)(dian)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)有(you)(you)(you)回流(liu)(liu)(liu)(liu)現象,這是(shi)安(an)全(quan)隱患,盡快解決。建議(yi)您可(ke)(ke)以去找家電(dian)(dian)維修師傅上門(men)更換變壓(ya)器(qi)(qi)(qi)(qi)(qi)。需要注(zhu)(zhu)意的(de)(de)(de)(de)事項有(you)(you)(you):熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)通電(dian)(dian)使用前,必須確保(bao)熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)內(nei)膽注(zhu)(zhu)滿水(shui)(shui)(shui)(shui)(shui)(shui)。否(fou)則會造成熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)空燒,損壞加熱(re)(re)管(guan),引起(qi)溫(wen)控器(qi)(qi)(qi)(qi)(qi)跳閘。注(zhu)(zhu)水(shui)(shui)(shui)(shui)(shui)(shui)方法:將(jiang)混合閥扳至熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)處(chu),然后(hou)開啟自來水(shui)(shui)(shui)(shui)(shui)(shui)進(jin)水(shui)(shui)(shui)(shui)(shui)(shui)閥門(men),待(dai)噴頭(tou)連(lian)續(xu)出水(shui)(shui)(shui)(shui)(shui)(shui)時,表明熱(re)(re)水(shui)(shui)(shui)(shui)(shui)(shui)器(qi)(qi)(qi)(qi)(qi)內(nei)膽中的(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)已注(zhu)(zhu)滿,然后(hou)才可(ke)(ke)以通電(dian)(dian)加熱(re)(re)。遼(liao)寧空調電(dian)(dian)源(yuan)(yuan)(yuan)變壓(ya)器(qi)(qi)(qi)(qi)(qi)廠家10. 電(dian)(dian)源(yuan)(yuan)(yuan)變壓(ya)器(qi)(qi)(qi)(qi)(qi)廣泛應用于電(dian)(dian)力(li)系統(tong)、工業生產、建筑設備和(he)通信等(deng)領域(yu)。

電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)發生短(duan)路(lu)(lu)性故障(zhang)后(hou)的(de)(de)(de)(de)(de)(de)主要癥狀是(shi)發熱(re)嚴(yan)重(zhong)和(he)次級(ji)繞(rao)(rao)組(zu)輸(shu)出(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)失常。通常，線圈(quan)內(nei)部匝間(jian)短(duan)路(lu)(lu)點越多，短(duan)路(lu)(lu)電(dian)(dian)(dian)(dian)流(liu)(liu)就越大，而變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)發熱(re)就越嚴(yan)重(zhong)。檢(jian)測(ce)判斷電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)是(shi)否(fou)有短(duan)路(lu)(lu)性故障(zhang)的(de)(de)(de)(de)(de)(de)簡單方(fang)法是(shi)測(ce)量空(kong)載(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)（測(ce)試方(fang)法前面已經介紹(shao)）。存(cun)在(zai)(zai)(zai)短(duan)路(lu)(lu)故障(zhang)的(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)，其(qi)(qi)空(kong)載(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)值將遠大于滿載(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)(de)(de)(de)(de)10%。當短(duan)路(lu)(lu)嚴(yan)重(zhong)時(shi)，變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)在(zai)(zai)(zai)空(kong)載(zai)(zai)加電(dian)(dian)(dian)(dian)后(hou)幾十秒鐘之內(nei)便會迅速發熱(re)，用(yong)手(shou)觸摸鐵(tie)芯(xin)(xin)會有燙(tang)手(shou)的(de)(de)(de)(de)(de)(de)感覺。此時(shi)不(bu)用(yong)測(ce)量空(kong)載(zai)(zai)電(dian)(dian)(dian)(dian)流(liu)(liu)便可(ke)斷定變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)有短(duan)路(lu)(lu)點存(cun)在(zai)(zai)(zai)。電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)識別(bie)(bie)(bie)編輯1）從(cong)外形(xing)識別(bie)(bie)(bie)常用(yong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)鐵(tie)芯(xin)(xin)有E形(xing)和(he)C形(xing)兩種。E形(xing)鐵(tie)芯(xin)(xin)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)呈殼式(shi)結構（鐵(tie)芯(xin)(xin)包(bao)裹線圈(quan)），采用(yong)D41、D42好的(de)(de)(de)(de)(de)(de)硅(gui)鋼(gang)片作鐵(tie)芯(xin)(xin)，應(ying)用(yong)廣。C形(xing)鐵(tie)芯(xin)(xin)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)用(yong)冷(leng)軋硅(gui)鋼(gang)帶作鐵(tie)芯(xin)(xin)，磁漏(lou)小，體積(ji)小，呈芯(xin)(xin)式(shi)結構（線圈(quan)包(bao)裹鐵(tie)芯(xin)(xin)）。2）從(cong)繞(rao)(rao)組(zu)引出(chu)端子數識別(bie)(bie)(bie)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)常見(jian)的(de)(de)(de)(de)(de)(de)有兩個(ge)繞(rao)(rao)組(zu)，即一個(ge)初(chu)級(ji)和(he)一個(ge)次級(ji)繞(rao)(rao)組(zu)，因此有四個(ge)引出(chu)端。有的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)為防止交流(liu)(liu)聲及其(qi)(qi)他干擾，初(chu)、次級(ji)繞(rao)(rao)組(zu)間(jian)往(wang)往(wang)加一屏(ping)蔽層，其(qi)(qi)屏(ping)蔽層是(shi)接(jie)地(di)端。因此，電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)接(jie)線端子至少是(shi)4個(ge)。3）從(cong)硅(gui)鋼(gang)片的(de)(de)(de)(de)(de)(de)疊片方(fang)式(shi)識別(bie)(bie)(bie)E形(xing)電(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)硅(gui)鋼(gang)片是(shi)交*插入的(de)(de)(de)(de)(de)(de)，E片和(he)I片間(jian)不(bu)留空(kong)氣隙，整個(ge)鐵(tie)芯(xin)(xin)嚴(yan)絲合縫。

磁(ci)(ci)(ci)(ci)芯(xin)(xin)總(zong)損(sun)(sun)(sun)耗(hao)(hao)(hao)PL與(yu)工(gong)(gong)作(zuo)頻(pin)(pin)率f及工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)B的關系(xi)(xi)(xi)由下式表示：PL=KfmBnVe(W)（2）這里(li)，n是steinmetz指數(shu)，對(dui)功率鐵氧體來(lai)說，典型(xing)(xing)值(zhi)是。指數(shu)m=1～，當(dang)磁(ci)(ci)(ci)(ci)損(sun)(sun)(sun)耗(hao)(hao)(hao)單純地由磁(ci)(ci)(ci)(ci)滯損(sun)(sun)(sun)耗(hao)(hao)(hao)引起(qi)(qi)時，m=1;當(dang)f=10～100kHz時，m=,當(dang)f>100kHz時，m將隨頻(pin)(pin)率增高(gao)而增長，見(jian)圖2，這個額外(wai)損(sun)(sun)(sun)耗(hao)(hao)(hao)是由于渦流損(sun)(sun)(sun)耗(hao)(hao)(hao)或剩余損(sun)(sun)(sun)耗(hao)(hao)(hao)引起(qi)(qi)的。很明(ming)顯(xian)，對(dui)于高(gao)頻(pin)(pin)運行的鐵氧體材(cai)料(liao)，要努力減小m值(zhi)。4．工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)變壓(ya)(ya)器工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)（可允許磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)偏(pian)移(yi)）受兩方面限(xian)制(zhi)：首(shou)先要受磁(ci)(ci)(ci)(ci)芯(xin)(xin)損(sun)(sun)(sun)耗(hao)(hao)(hao)引起(qi)(qi)的可允許溫升(sheng)(sheng)ΔθFe的限(xian)制(zhi)；另一方面，也受鐵氧體材(cai)料(liao)飽(bao)和磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)值(zhi)的限(xian)制(zhi)。對(dui)單端正向型(xing)(xing)變換器，工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)ΔB=Bm-Br；對(dui)推挽式變換器，工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)ΔB=2Bm。根(gen)據公式（2），當(dang)工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)提高(gao)時，磁(ci)(ci)(ci)(ci)芯(xin)(xin)損(sun)(sun)(sun)耗(hao)(hao)(hao)將以，從而造成變壓(ya)(ya)器溫升(sheng)(sheng)，因此(ci)(ci)設計的工(gong)(gong)作(zuo)磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)首(shou)先受磁(ci)(ci)(ci)(ci)芯(xin)(xin)溫升(sheng)(sheng)值(zhi)限(xian)制(zhi)，其關系(xi)(xi)(xi)式為：ΔB=CB（3）這里(li)，常數(shu)CB與(yu)指數(shu)n是與(yu)磁(ci)(ci)(ci)(ci)芯(xin)(xin)材(cai)料(liao)有關的系(xi)(xi)(xi)數(shu)；Ve為有效體積；Rth為熱阻。當(dang)計算(suan)出的磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)值(zhi)較(jiao)(jiao)高(gao)時，ΔB還受磁(ci)(ci)(ci)(ci)芯(xin)(xin)材(cai)料(liao)可允許磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)偏(pian)移(yi)ΔBadm（此(ci)(ci)值(zhi)與(yu)材(cai)料(liao)高(gao)溫下Bs值(zhi)相對(dui)應(ying)）所限(xian)制(zhi)。在這里(li)，必(bi)須注意對(dui)不等(deng)截面磁(ci)(ci)(ci)(ci)芯(xin)(xin)（如E型(xing)(xing)磁(ci)(ci)(ci)(ci)芯(xin)(xin)），在蕞小橫(heng)截面Amin處有較(jiao)(jiao)高(gao)的磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)(tong)(tong)密(mi)(mi)度(du)(du)(du)。為避(bi)免磁(ci)(ci)(ci)(ci)芯(xin)(xin)飽(bao)和。13. 電(dian)源變壓(ya)(ya)器幫助實(shi)現遠距離(li)輸(shu)電(dian)，減少能源傳輸(shu)損(sun)(sun)(sun)失。

那么干燥瓶(ping)效(xiao)率降(jiang)低的(de)(de)(de)可(ke)(ke)(ke)能(neng)(neng)(neng)性(xing)(xing)很(hen)大。希望(wang)我(wo)的(de)(de)(de)回(hui)答可(ke)(ke)(ke)以(yi)幫助(zhu)到您(nin)。8格力(li)空(kong)(kong)調室(shi)(shi)內(nei)機(ji)(ji)異(yi)響是(shi)(shi)(shi)(shi)什(shen)么原因一(yi)、可(ke)(ke)(ke)能(neng)(neng)(neng)是(shi)(shi)(shi)(shi)正常(chang)的(de)(de)(de)風聲(sheng)。這(zhe)個(ge)一(yi)般(ban)(ban)不會有(you)(you)問題(ti)。二、其(qi)他(ta)異(yi)常(chang)響聲(sheng):1、容易出(chu)(chu)問題(ti)的(de)(de)(de)是(shi)(shi)(shi)(shi)內(nei)機(ji)(ji)的(de)(de)(de)電器(qi)(qi)(qi)(qi)件(jian),多(duo)的(de)(de)(de)就(jiu)是(shi)(shi)(shi)(shi)電機(ji)(ji),產生一(yi)些電磁噪(zao)音,聽起來(lai)很(hen)不舒服,吱(zhi)吱(zhi)的(de)(de)(de)。2、如果(guo)內(nei)機(ji)(ji)的(de)(de)(de)一(yi)些部(bu)(bu)件(jian)不好,可(ke)(ke)(ke)能(neng)(neng)(neng)產生共振。3、有(you)(you)可(ke)(ke)(ke)能(neng)(neng)(neng)是(shi)(shi)(shi)(shi)冷(leng)(leng)媒(mei)在(zai)(zai)管路流(liu)動(dong)所產生的(de)(de)(de)噪(zao)聲(sheng)。因為(wei)室(shi)(shi)內(nei)機(ji)(ji)可(ke)(ke)(ke)能(neng)(neng)(neng)要(yao)(yao)截流(liu),也就(jiu)是(shi)(shi)(shi)(shi)控(kong)制冷(leng)(leng)媒(mei)的(de)(de)(de)流(liu)動(dong)速(su)度(du)(du),這(zhe)樣流(liu)速(su)快(kuai)時候可(ke)(ke)(ke)能(neng)(neng)(neng)產生噪(zao)音。三、噪(zao)音出(chu)(chu)現以(yi)后,維修人員帶儀(yi)器(qi)(qi)(qi)(qi)一(yi)般(ban)(ban)也是(shi)(shi)(shi)(shi)簡(jian)易的(de)(de)(de),只能(neng)(neng)(neng)測(ce)出(chu)(chu)一(yi)個(ge)平均(jun)值,也就(jiu)是(shi)(shi)(shi)(shi)正常(chang)的(de)(de)(de)風聲(sheng)。一(yi)般(ban)(ban)都(dou)不會有(you)(you)問題(ti),而所說(shuo)的(de)(de)(de)噪(zao)音很(hen)多(duo)是(shi)(shi)(shi)(shi)異(yi)音,這(zhe)些一(yi)般(ban)(ban)在(zai)(zai)某個(ge)頻率下分貝高,需要(yao)(yao)在(zai)(zai)實(shi)驗室(shi)(shi)專門的(de)(de)(de)儀(yi)器(qi)(qi)(qi)(qi)才能(neng)(neng)(neng)測(ce)出(chu)(chu)來(lai)。希望(wang)我(wo)的(de)(de)(de)回(hui)答可(ke)(ke)(ke)以(yi)幫助(zhu)到您(nin)。9變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)油有(you)(you)什(shen)么作用(yong)(yong)，熱水器(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)什(shen)么價(jia)格變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)油主(zhu)要(yao)(yao)起到冷(leng)(leng)卻媒(mei)介作用(yong)(yong)，同時也具有(you)(you)絕緣作用(yong)(yong)。熱水器(qi)(qi)(qi)(qi)變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)報價(jia)15元，具有(you)(you)性(xing)(xing)能(neng)(neng)(neng)優良、工作可(ke)(ke)(ke)靠、耗能(neng)(neng)(neng)低、體積小、接線安全、防護等(deng)(deng)級高、適(shi)用(yong)(yong)性(xing)(xing)廣等(deng)(deng)特點(dian)。采用(yong)(yong)冷(leng)(leng)軋硅鋼片疊(die)裝(zhuang)；特殊浸(jin)漆工藝處理(li)，有(you)(you)效(xiao)降(jiang)低了運(yun)行時的(de)(de)(de)震動(dong)和(he)噪(zao)聲(sheng)###（1）增加變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)內(nei)各(ge)部(bu)(bu)件(jian)的(de)(de)(de)絕緣強度(du)(du)。變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)的(de)(de)(de)油絕緣強度(du)(du)較好，且(qie)有(you)(you)流(liu)動(dong)性(xing)(xing)，能(neng)(neng)(neng)充滿變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)的(de)(de)(de)各(ge)部(bu)(bu)件(jian)和(he)任何空(kong)(kong)間(jian)，將(jiang)(jiang)空(kong)(kong)氣(qi)排出(chu)(chu)，避免了部(bu)(bu)件(jian)與空(kong)(kong)氣(qi)接觸(chu)受潮。15. 電源變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)可(ke)(ke)(ke)根據不同設(she)備的(de)(de)(de)需求，將(jiang)(jiang)電壓(ya)(ya)(ya)轉(zhuan)換為(wei)適(shi)合其(qi)工作的(de)(de)(de)電壓(ya)(ya)(ya)。浙江空(kong)(kong)調電源變(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)(qi)(qi)生產廠家

31. 電源變壓器的(de)應用還可以(yi)促進電動汽車和智能(neng)電網的(de)普及和智能(neng)化(hua)。安徽(hui)洗衣機(ji)電源變壓器廠家

變(bian)壓(ya)(ya)器溫(wen)升(sheng)通常分(fen)割為(wei)二個相(xiang)等的(de)(de)(de)部(bu)分(fen)：磁(ci)(ci)芯(xin)(xin)損(sun)耗引起的(de)(de)(de)溫(wen)升(sheng)ΔθFe和銅(tong)損(sun)引起的(de)(de)(de)溫(wen)升(sheng)ΔθCu。關于磁(ci)(ci)芯(xin)(xin)總(zong)損(sun)耗與(yu)溫(wen)升(sheng)的(de)(de)(de)關系如(ru)圖5所示(shi)。對相(xiang)同(tong)尺(chi)寸的(de)(de)(de)磁(ci)(ci)芯(xin)(xin)（RM14磁(ci)(ci)芯(xin)(xin)），采用(yong)(yong)(yong)不同(tong)的(de)(de)(de)鐵氧體材料(liao)(liao)(liao)（熱(re)(re)阻(zu)(zu)(zu)系數(shu)(shu)不同(tong)），其(qi)溫(wen)升(sheng)值是不同(tong)的(de)(de)(de)，其(qi)中N67材料(liao)(liao)(liao)有比(bi)其(qi)它(ta)材料(liao)(liao)(liao)更(geng)低(di)的(de)(de)(de)熱(re)(re)阻(zu)(zu)(zu)。于是，磁(ci)(ci)芯(xin)(xin)溫(wen)升(sheng)與(yu)磁(ci)(ci)芯(xin)(xin)總(zong)損(sun)耗的(de)(de)(de)關系可用(yong)(yong)(yong)下式表(biao)示(shi)：ΔθFe=Rth·RFe（5）式中，Rth即為(wei)熱(re)(re)阻(zu)(zu)(zu)，定義為(wei)每瓦特總(zong)消散時規(gui)定熱(re)(re)點處(chu)的(de)(de)(de)溫(wen)升(sheng)（k/W）。鐵氧體材料(liao)(liao)(liao)的(de)(de)(de)熱(re)(re)傳(chuan)導系數(shu)(shu)，磁(ci)(ci)芯(xin)(xin)尺(chi)寸及開關對熱(re)(re)阻(zu)(zu)(zu)有影響，并可用(yong)(yong)(yong)下述經驗(yan)公式來(lai)表(biao)示(shi)：Rth=)(6)式中，S：磁(ci)(ci)芯(xin)(xin)表(biao)面積；d:磁(ci)(ci)芯(xin)(xin)尺(chi)寸；α：表(biao)面熱(re)(re)傳(chuan)導系數(shu)(shu)；λ：磁(ci)(ci)芯(xin)(xin)內(nei)部(bu)熱(re)(re)傳(chuan)導系數(shu)(shu)。由上式可見(jian)，對電源變(bian)壓(ya)(ya)器用(yong)(yong)(yong)的(de)(de)(de)鐵氧體材料(liao)(liao)(liao)，必須具有低(di)的(de)(de)(de)功率(lv)損(sun)耗和高(gao)的(de)(de)(de)熱(re)(re)傳(chuan)導系數(shu)(shu)。實際測量表(biao)明，圖5所示(shi)的(de)(de)(de)N67材料(liao)(liao)(liao)顯(xian)示(shi)高(gao)的(de)(de)(de)熱(re)(re)導性(xing)(xing)。從(cong)微觀結(jie)構考(kao)慮，高(gao)的(de)(de)(de)燒結(jie)密(mi)度(du)，均勻的(de)(de)(de)晶粒結(jie)構，以及晶界(jie)里(li)有足夠的(de)(de)(de)Ca濃度(du)，將是有高(gao)的(de)(de)(de)熱(re)(re)導性(xing)(xing)。從(cong)磁(ci)(ci)芯(xin)(xin)尺(chi)寸形狀考(kao)慮，較大(da)磁(ci)(ci)芯(xin)(xin)尺(chi)寸給出(chu)低(di)的(de)(de)(de)熱(re)(re)阻(zu)(zu)(zu)，其(qi)中ETD磁(ci)(ci)芯(xin)(xin)具有優(you)良的(de)(de)(de)熱(re)(re)阻(zu)(zu)(zu)特性(xing)(xing)，見(jian)圖6；另(ling)外無中心(xin)孔的(de)(de)(de)RM磁(ci)(ci)芯(xin)(xin)（RM14A）顯(xian)示(shi)出(chu)比(bi)有中心(xin)孔磁(ci)(ci)芯(xin)(xin)（RM14B）更(geng)低(di)的(de)(de)(de)熱(re)(re)阻(zu)(zu)(zu)。對高(gao)頻電源變(bian)壓(ya)(ya)器磁(ci)(ci)芯(xin)(xin)，磁(ci)(ci)芯(xin)(xin)設計時應盡量增加暴露表(biao)面，如(ru)擴大(da)背部(bu)和外翼，或制成寬而薄(bo)的(de)(de)(de)形狀。安徽洗衣(yi)機電源變(bian)壓(ya)(ya)器廠家

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