PTC加熱(re)器熱(re)敏(min)電(dian)阻效果

    PTC加(jia)(jia)熱(re)(re)器(qi)(qi)具有(you)恒溫(wen)(wen)發熱(re)(re)特(te)性，其原理是PTC 加(jia)(jia)熱(re)(re)片(pian)加(jia)(jia)電(dian)(dian)后自(zi)熱(re)(re)升(sheng)溫(wen)(wen)使(shi)阻(zu)值升(sheng)高(gao)進入(ru)躍變(bian)區，PTC 加(jia)(jia)熱(re)(re)片(pian)表面溫(wen)(wen)度將(jiang)保持恒定值，該溫(wen)(wen)度只與PTC 加(jia)(jia)熱(re)(re)片(pian)的居里(li)溫(wen)(wen)度和外(wai)加(jia)(jia)電(dian)(dian)壓有(you)關，而(er)(er)與環境溫(wen)(wen)度基本(ben)無關。即使(shi)在非正(zheng)常工作的情(qing)況下，由于(yu)(yu)PTC 元件(jian)自(zi)身的調節(jie)作用(yong)，輸入(ru)功(gong)率可降得(de)很低，仍不至于(yu)(yu)產生(sheng)意外(wai)情(qing)況。PTC電(dian)(dian)加(jia)(jia)熱(re)(re)是采用(yong)PTC熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)元件(jian)為發熱(re)(re)源的一種(zhong)加(jia)(jia)熱(re)(re)器(qi)(qi)。PTC熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)通(tong)常是用(yong)半導體材(cai)料(liao)制(zhi)成(cheng)的,它的電(dian)(dian)阻(zu)隨溫(wen)(wen)度變(bian)化而(er)(er)急劇變(bian)化,當外(wai)界溫(wen)(wen)度降低,PTC電(dian)(dian)阻(zu)值隨之減小,發熱(re)(re)量反(fan)而(er)(er)會相(xiang)應增加(jia)(jia)。PTC加(jia)(jia)熱(re)(re)器(qi)(qi)熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)效果(guo) PTC加(jia)(jia)熱(re)(re)器(qi)(qi)安全(quan)性按材(cai)質(zhi)可以分為陶(tao)瓷PTC熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)和有(you)機高(gao)分子PTC熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)。用(yong)于(yu)(yu)空調器(qi)(qi)輔助(zhu)電(dian)(dian)加(jia)(jia)熱(re)(re)器(qi)(qi)的材(cai)料(liao)是采用(yong)陶(tao)瓷PTC熱(re)(re)敏(min)(min)電(dian)(dian)阻(zu)。

    PTC加熱(re)器熱(re)敏電(dian)阻效果 PTC加熱(re)器安全性

    1.PTC熱敏電阻元件因具有隨環境溫度(du)高低的(de)(de)變化(hua),其電阻值隨之(zhi)增(zeng)加或減小的(de)(de)變化(hua)特性(xing),所(suo)以PTC加熱器具有節能、恒溫、安全、 壽命長等特點 。 

    2.空調(diao)器(qi)(qi)(qi)輔(fu)助電加(jia)熱(re)器(qi)(qi)(qi)的(de)分類 空調(diao)器(qi)(qi)(qi)輔(fu)助電加(jia)熱(re)器(qi)(qi)(qi)可以分為:粘(zhan)接(jie)式陶瓷(ci)PTC加(jia)熱(re)器(qi)(qi)(qi)和金屬(shu)PTC管狀加(jia)熱(re)器(qi)(qi)(qi)。粘(zhan)接(jie)式陶瓷(ci)PTC加(jia)熱(re)器(qi)(qi)(qi)是將多個陶瓷(ci)PTC芯片(pian)及鋁波紋(wen)散熱(re)片(pian)用耐高(gao)溫樹脂膠粘(zhan)接(jie)在一起的(de)加(jia)熱(re)器(qi)(qi)(qi),散熱(re)性好,電氣性能穩定。

    3.其中粘(zhan)接式陶瓷PTC加(jia)熱(re)器(qi)(qi)(qi)又(you)分為(wei)(wei)加(jia)熱(re)器(qi)(qi)(qi)表面(mian)帶(dai)電型和加(jia)熱(re)器(qi)(qi)(qi)表面(mian)不帶(dai)電型。 金(jin)屬PTC管狀加(jia)熱(re)器(qi)(qi)(qi)采用(yong)進口鎳鐵合金(jin)絲(si)為(wei)(wei)發熱(re)材料(liao),發熱(re)管外(wai)鑲鋁(lv)散熱(re)片,其散熱(re)效果非常(chang)好(hao),加(jia)熱(re)器(qi)(qi)(qi)配用(yong)溫度(du)控制器(qi)(qi)(qi)和熱(re)熔斷(duan)器(qi)(qi)(qi),使產品(pin)使用(yong)更安(an)全可(ke)靠,加(jia)熱(re)器(qi)(qi)(qi)具(ju)有PTC材料(liao)的良好(hao)特(te)性,一(yi)些空調器(qi)(qi)(qi)均采用(yong)此類加(jia)熱(re)器(qi)(qi)(qi)作為(wei)(wei)輔助加(jia)熱(re)。

    4.空調器(qi)(qi)輔助(zhu)電(dian)(dian)加(jia)(jia)熱(re)(re)(re)器(qi)(qi)的(de)(de)控制(zhi)方式 空調器(qi)(qi)中的(de)(de)電(dian)(dian)加(jia)(jia)熱(re)(re)(re)啟(qi)動(dong)分(fen)為手(shou)動(dong)和(he)自動(dong)兩種。 PTC加(jia)(jia)熱(re)(re)(re)器(qi)(qi)熱(re)(re)(re)敏電(dian)(dian)阻效果 PTC加(jia)(jia)熱(re)(re)(re)器(qi)(qi)安全性不論是(shi)手(shou)動(dong)還是(shi)自動(dong),輔助(zhu)電(dian)(dian)加(jia)(jia)熱(re)(re)(re)的(de)(de)開啟(qi)必須(xu)滿足一 定的(de)(de)條件 。例如: 壓縮機(ji)、室內(nei)風機(ji)開啟(qi),且壓縮機(ji)以(yi)熱(re)(re)(re)泵形式運行5分(fen)鐘。