表面不帶電 PTC<\/span>發(fā)熱器是一類大功率的需吹風且散熱體不帶電的 PTC<\/span>發(fā)熱器。PTC<\/span>元件安裝在鋁管內且與鋁管絕緣，鋁管外裝有翅片或槽狀散熱片。具有安全可靠、功率穩(wěn)定、噪音小、壽命長、機械強度好等優(yōu)點。由于安全性能好，主要應用于冷暖空調機、暖風機、消毒柜、干燥器等大功率家用發(fā)熱器件上. <\/span> <\/p>

Non-Surfce-Electrified PTC heaterSeries is a kind of large power Non-Surface-Electified PTC heater with windblowing, PTC element is fixed in alu-minium tube and keeps insulated with thealuminium tube, Alar or tooth-grooveheat diffusing slice is fixed on thealuminium tube, The large-power heater has a series of virtues such assafety,reliability, stable power,small small sound,longlife, excellentmachinery, intension and so on,Because of good safe performance,nowNon-Surface-Elect- ified PTC heater is mainly used in large-pawer house heatersuch as cold/warm air-condition,heater,disinfecting cabinet,dryer and so on.<\/p>

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2. <\/strong>帶電波紋PTC<\/span>發(fā)熱體系列  <\/span><\/strong>Surface-electrified PTCRipple Heater Series<\/span> <\/h2>

        <\/span>帶電波紋PTC<\/span>發(fā)熱體是一類大功率吹風PTC<\/span>發(fā)熱體，在普通PTC<\/span>元件的兩側粘上波紋狀的散熱體，波紋孔可供熱風通過.<\/span>具有發(fā)熱量大、功率穩(wěn)定、使用方便壽命長、可靠性高、無明火等一系列優(yōu)點。已廣泛應用于暖風機、冷暖空調機、消毒柜、干衣機、干燥箱等家用發(fā)熱設備上<\/span> <\/p>

Surface-electrifiedPTC Ripple Heater Series is a kind of heater that can auto- control temperatureand save electronic lt is made up of PTC and waves aluminum, The heater with alot of virtues such as giving out large heat, stable power, using expediently,long life, high reliability, without bright flame is adhibited ripple heatdifu- sing component which hot wind can go through on both sides of general PTCelem- ent,lt is now widely used in house heating instrument such as applied inair-adjuster, wet wipe off,dryer,suti-dryer,moveable heater and automobileetc,that need warm air.<\/p>

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加熱器使用注意事項<\/strong>
<\/b>1.PTC加熱器的功率受外部環(huán)境影響很大，理想的測試方法是在標準工況下安裝在整機中進行。通常為便于雙方檢驗確認，實際操作時，是以在整機中確認的封樣件來調整模擬風道的相關參數(shù)后測試的。測試時環(huán)境溫度一般保持在20<\/span>～25<\/span>℃左右。
2.PTC<\/span>加熱器在工作時有熱膨脹現(xiàn)象，故在結構設計時應考慮加熱器周圍留有一定間隙（5mm<\/span>以上）；
3.<\/span>若選用表面帶電型加熱器，在設計時還應考慮防觸電措施及蒸發(fā)器結霜時的安全間距，確保沒有人體、金屬物和霜層觸及的可能。選用表面絕緣型加熱器則較為安全；
4.<\/span>加熱器裝接三相供電時，應采用Y<\/span>型連接，且中性點必須接零線，避免因三相不平衡造成某路加熱器端電壓過高的故障隱患<\/span> <\/p>

PTC<\/strong>加熱器特性<\/strong>
<\/b>PTC加熱器采用PTCR<\/span>熱敏陶瓷元件，由若干單片組合后與波紋散熱鋁條經高溫膠粘結組成，具有熱阻小、換熱效率高的顯著優(yōu)點。它的**在于其安全性，即遇風機故障堵轉時，PTC<\/span>加熱器因得不到充分散熱，功率會自動急劇下降，此時加熱器的表面溫度維持限定在居里溫度左右（一般為220<\/span>℃），從而不致產生電熱管類加熱器表面的“發(fā)紅”現(xiàn)象，排除了發(fā)生事故的隱患。
<\/span>本公司MZFR<\/span>系列加熱器目前已廣泛應用于家用空調器的熱泵輔助加熱、商用中央空調及加熱類小家電產品。<\/span> <\/p>

PTC Heaters<\/strong>
<\/b>The PTC heater is composed of several PTCR ceramic componentsadhered to wave Al tube by high temperature. It features in low thermalresistance and high coefficient of heat transmission.Besides, when the fanblocked,power of PTC heater would drop down sharply due to insufficientdissipation.Meanwhile surface temperature of heater would remain at the levelof curie temperature,which is usually220℃<\/span><\/span>sothat potential accident would be eliminated. 
At present, our MZFR series have been extensively applied in homeaircondition,commercial aircondition as well as household heating appliances.
The relations among power of PTC heaters,wind rate and ambient temperature
Example: MZFR-J1230 220V 1200W
PTC<\/strong>加熱器功率與風速、環(huán)境溫度的關系<\/strong>
下圖以MZFR-J1230 220V 1200W<\/span>的PTC<\/span>加熱器為例，描述功率與風速、功率與環(huán)境溫度的關系曲線（趨勢）。（標準測試風速4.5m<\/span>，環(huán)境溫度25<\/span>℃）。<\/span> <\/p>

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PTC<\/b>加熱器耐久性（功率衰減）<\/span><\/b> <\/p>

PTC加熱器耐久性的優(yōu)劣，一般以投入運行后的功率衰減率來加以衡量。由《行業(yè)標準》規(guī)定，工作1000h<\/span>后功率衰減率應≤10<\/span>％。下面是本公司常規(guī)絕緣型加熱器產品的衰減曲線圖。
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PTC Heaters<\/strong>
<\/b>The PTC heater is composed of several PTCR ceramiccomponents adhered to wave Al tube by high temperature. It features in lowthermal resistance and high coefficient of heat transmission.Besides, when thefan blocked,power of PTC heater would drop down sharply due to insufficientdissipation.Meanwhile surface temperature of heater would remain at the levelof curie temperature,which is usually220℃<\/span><\/span>sothat potential accident would be eliminated. 
At present, our MZFR series have been extensively applied in homeaircondition,commercial aircondition as well as household heating appliances.
The relations among power of PTC heaters,wind rate and ambient temperature
Example: MZFR-J1230 220V 1200W<\/p>

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（Standard test wind rate4.5m<\/span>，Ambienttemperature25℃<\/span><\/span>）。         
Durability of PTC Heaters<\/span><\/span>（Decay Rate<\/span>）
Decay rate is used for evaluating the durance of PTC heaters. According toIndustry Standard,the decay rate should <\/span>≤10<\/span>％after working for 1000hours. Here below is the decay rate chart ofour standard insulation PTC heaters.

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