汽車(che)空(kong)調的溫(wen)控開關原理:
1、溫(wen)控開(kai)關內部有(you)個雙金屬片(pian),具有(you)不同的(de)熱膨(peng)脹系數,這(zhe)(zhe)樣(yang)就能(neng)在達到一(yi)定范圍的(de)臨界點(dian)溫(wen)度時發生形變使觸(chu)點(dian)結合,達到通(tong)電的(de)目的(de),低于(yu)這(zhe)(zhe)個溫(wen)度范圍后回復(fu)到起始位置(zhi),斷開(kai)線路。這(zhe)(zhe)是機械式(shi)的(de)。在溫(wen)控開(kai)關表面會標有(you)數值(zhi),例如78或者(zhe)83等(deng)等(deng)。
2、還有(you)熱電(dian)偶式的,也就是不(bu)(bu)同的溫度有(you)不(bu)(bu)同的電(dian)阻,行車電(dian)腦獲取數據后作出(chu)開啟或關閉(bi)的指令(ling)。
3、溫控(kong)(kong)開(kai)關(guan)是控(kong)(kong)制風扇(shan)轉動(dong)的當水溫88度(du)左右溫控(kong)(kong)開(kai)關(guan)控(kong)(kong)制風扇(shan)底數轉100度(du)以上風扇(shan)高(gao)速轉溫控(kong)(kong)開(kai)關(guan)一般(ban)安裝(zhuang)在水箱上或水管到發動(dong)機缸(gang)蓋的地方有3根線的兩根線的看(kan)車(che)型不等。
4、 三條線的(de)那(nei)一定是(shi)電子溫(wen)控才(cai)有,一條是(shi)開關那(nei)過來的(de)負級(ji) 一條是(shi)接到干(gan)燥瓶那(nei)個保護(hu)空調系統(tong)的(de)開關 還有一條是(shi)電源 。
汽車(che)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)(kong)(kong)(kong)開(kai)(kai)關(guan)在(zai)空(kong)調(diao)操作面板上,溫(wen)(wen)(wen)(wen)(wen)(wen)度傳感器安裝在(zai)空(kong)調(diao)進風口位置。汽車(che)上的(de)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)(kong)(kong)(kong)開(kai)(kai)關(guan)是(shi)起溫(wen)(wen)(wen)(wen)(wen)(wen)度控(kong)(kong)(kong)(kong)制(zhi)(zhi)的(de)作用,主要是(shi)空(kong)調(diao)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)(kong)(kong)(kong),其是(shi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)空(kong)調(diao)壓(ya)縮機的(de),當設置的(de)溫(wen)(wen)(wen)(wen)(wen)(wen)度為25度時車(che)廂溫(wen)(wen)(wen)(wen)(wen)(wen)度達到(dao)了(le)25度就會(hui)關(guan)停壓(ya)縮機,風扇還(huan)會(hui)運轉的(de),因此(ci)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)(kong)(kong)(kong)開(kai)(kai)關(guan)是(shi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)空(kong)調(diao)壓(ya)縮機,而(er)不(bu)是(shi)控(kong)(kong)(kong)(kong)制(zhi)(zhi)風扇的(de)。汽車(che)溫(wen)(wen)(wen)(wen)(wen)(wen)控(kong)(kong)(kong)(kong)開(kai)(kai)關(guan)壞了(le)的(de)表現(xian):汽車(che)在(zai)運行中冷卻系統(tong)溫(wen)(wen)(wen)(wen)(wen)(wen)度過高會(hui)出(chu)現(xian)水(shui)(shui)溫(wen)(wen)(wen)(wen)(wen)(wen)表指針指向紅(hong)線(xian),水(shui)(shui)溫(wen)(wen)(wen)(wen)(wen)(wen)警示燈(deng)閃(shan)亮,甚至沸騰(teng);發動機在(zai)加速時伴隨有明(ming)顯的(de)金(jin)屬敲擊聲,同時有動力不(bu)足、水(shui)(shui)溫(wen)(wen)(wen)(wen)(wen)(wen)警示燈(deng)閃(shan)爍(shuo)、難以(yi)熄(xi)火等現(xian)象。
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