恒溫(wen)(wen)(wen)(wen)加熱(re)(re)PTC熱(re)(re)敏電(dian)阻(zu)具有(you)恒溫(wen)(wen)(wen)(wen)發熱(re)(re)特(te)性,其原理是PTC熱(re)(re)敏電(dian)阻(zu)加電(dian)后自熱(re)(re)升溫(wen)(wen)(wen)(wen)使阻(zu)值進入躍變(bian)區,恒溫(wen)(wen)(wen)(wen)加熱(re)(re)PTC熱(re)(re)敏電(dian)阻(zu)表(biao)面溫(wen)(wen)(wen)(wen)度(du)將(jiang)保持恒定值,該(gai)溫(wen)(wen)(wen)(wen)度(du)只與(yu)PTC熱(re)(re)敏電(dian)阻(zu)的居(ju)里溫(wen)(wen)(wen)(wen)度(du)和外加電(dian)壓有(you)關,而與(yu)環境溫(wen)(wen)(wen)(wen)度(du)基本無關.

PTC加熱(re)(re)(re)器(qi)就是(shi)利用(yong)恒(heng)(heng)溫(wen)(wen)加熱(re)(re)(re)PTC熱(re)(re)(re)敏電阻恒(heng)(heng)溫(wen)(wen)發(fa)熱(re)(re)(re)特性設計的(de)(de)(de)加熱(re)(re)(re)器(qi)件(jian).在(zai)中(zhong)小功率加熱(re)(re)(re)場合(he), PTC加熱(re)(re)(re)器(qi)具(ju)有恒(heng)(heng)溫(wen)(wen)發(fa)熱(re)(re)(re)、無(wu)(wu)明(ming)火、熱(re)(re)(re)轉換(huan)率高、受電源電壓影響極(ji)小、自(zi)然(ran)壽(shou)命長等(deng)(deng)傳統發(fa)熱(re)(re)(re)元(yuan)件(jian)無(wu)(wu)法比擬(ni)的(de)(de)(de)優勢, 在(zai)電熱(re)(re)(re)器(qi)具(ju)中(zhong)的(de)(de)(de)應用(yong)越(yue)來越(yue)受到(dao)研發(fa)工程師的(de)(de)(de)青睞.恒(heng)(heng)溫(wen)(wen)加熱(re)(re)(re)PTC熱(re)(re)(re)敏電阻可(ke)制(zhi)作成(cheng)(cheng)多(duo)種外(wai)形(xing)(xing)結構和(he)不同(tong)規格,常見的(de)(de)(de)有圓(yuan)片形(xing)(xing)、長方形(xing)(xing)、長條形(xing)(xing) 、圓(yuan)環以及蜂窩多(duo)孔狀(zhuang)等(deng)(deng).把上述(shu)PTC發(fa)熱(re)(re)(re)元(yuan)件(jian)和(he)金屬構件(jian)進行(xing)組合(he)可(ke)以形(xing)(xing)成(cheng)(cheng)各種形(xing)(xing)式的(de)(de)(de)大(da)功率PTC加熱(re)(re)(re)器(qi)

PTC加熱(re)器按結(jie)構特(te)點(dian)分  

(1)普通(tong)實用(yong)型PTC陶瓷(ci)加熱(re)器(qi).這類(lei)器(qi)具(ju)主(zhu)要有: 電(dian)(dian)熱(re)蚊藥(yao)驅蚊器(qi)、暖(nuan)手(shou)器(qi)、干燥器(qi)、電(dian)(dian)熱(re)板、電(dian)(dian)燙斗、電(dian)(dian)烙鐵、電(dian)(dian)熱(re)粘合器(qi)、卷發燙發器(qi)等.其特點是功率(lv)不大，但熱(re)效率(lv)高很實用(yong).

(2)自動恒(heng)溫(wen)(wen)(wen)(wen)型(xing)PTC加熱器(qi).這類(lei)器(qi)具主要有：小型(xing)晶體(ti)器(qi)件(jian)恒(heng)溫(wen)(wen)(wen)(wen)槽、恒(heng)溫(wen)(wen)(wen)(wen)培養箱(xiang)、電子(zi)保溫(wen)(wen)(wen)(wen)瓶(ping)、保溫(wen)(wen)(wen)(wen)箱(xiang)、保溫(wen)(wen)(wen)(wen)杯、保溫(wen)(wen)(wen)(wen)盤、保溫(wen)(wen)(wen)(wen)柜、保溫(wen)(wen)(wen)(wen)桌(zhuo)等。其特點是(shi)自動保溫(wen)(wen)(wen)(wen)、結構簡單、恒(heng)溫(wen)(wen)(wen)(wen)特性(xing)好、熱效(xiao)率高、使用環境溫(wen)(wen)(wen)(wen)度范圍寬.

(3)熱(re)風(feng)PTC加熱(re)器.這類熱(re)風(feng)PTC加熱(re)器主要(yao)有：小(xiao)型(xing)溫風(feng)取暖器、電吹風(feng)、暖房機、烘(hong)干機、干衣柜、干衣機、工業烘(hong)干設備等(deng). 其特(te)點是輸出熱(re)風(feng)功率(lv)大、速熱(re)、安全、能自動(dong)調節風(feng)溫和功耗.

3.型(xing)號命名：以下現(xian)貨圖紙

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