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PTC發(fā)熱體[1]又叫PTC加熱器，采用PTC陶瓷發(fā)熱元件與鋁管組成。
它由鍍鋅外壓板、不銹鋼波紋狀彈簧片、鍍鋅內(nèi)壓板、單層鋁散熱件、ptc發(fā)熱片、雙層鋁散熱件、鍍鎳銅電極端子和pps高溫塑膠電極護套所組成。該產(chǎn)品由于采用u型波紋狀散熱片，提高了其散熱率，且綜合了膠粘和機械式的優(yōu)點，并充分考慮到ptc發(fā)熱件在工作時的各種熱、電現(xiàn)象，其結(jié)合力強，導(dǎo)熱、散熱性能優(yōu)良，效率高，安全。該類型PTC加熱器有熱阻小、換熱效率高的優(yōu)點，是一種自動恒溫、省電的電加熱器。它的一大突出特點在于安全性能上，即遇風機故障停轉(zhuǎn)時，PTC加熱器因得不到充分散熱，其功率會自動急劇下降，此時加熱器的表面溫度維持在居里溫度左右（一般在250℃上下），從而不致產(chǎn)生如電熱管類加熱器的表面“發(fā)紅”現(xiàn)象。
主要應(yīng)用
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空調(diào)機、熱風幕機、去濕機、干燥機、干衣機、暖風機、汽車等需要提供暖風的設(shè)備上。
特點
升溫迅速、遇風機故障時能自控溫度、使用壽命長
電壓使用范圍寬，可在12V-380V之間根據(jù)需要設(shè)計
設(shè)計方便，可從小功率到大功率任意設(shè)計，外形也可按要求設(shè)計
不燃燒，安全，
優(yōu)點
1.發(fā)熱迅速鋁片更緊湊緊湊熱效更高。
2.健康環(huán)保無膠粘合更健康。
3.超長耐用無氧化，使用壽命長達6000小時。
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