汽車空調的溫控開關原理:
1、溫(wen)控開(kai)關內部(bu)有個雙金屬片,具有不同(tong)的(de)(de)(de)熱(re)膨(peng)脹系數,這(zhe)樣就能在(zai)達(da)到一定范(fan)圍(wei)的(de)(de)(de)臨界點溫(wen)度(du)時(shi)發生形變使觸點結合,達(da)到通電的(de)(de)(de)目的(de)(de)(de),低于這(zhe)個溫(wen)度(du)范(fan)圍(wei)后回復到起始位(wei)置,斷(duan)開(kai)線(xian)路。這(zhe)是機械式(shi)的(de)(de)(de)。在(zai)溫(wen)控開(kai)關表面會標有數值,例如(ru)78或(huo)者83等等。
2、還有熱電(dian)偶式的(de),也就(jiu)是不(bu)(bu)同(tong)的(de)溫度有不(bu)(bu)同(tong)的(de)電(dian)阻,行車(che)電(dian)腦(nao)獲取數據后(hou)作出開啟(qi)或關閉的(de)指令。
3、溫控(kong)開(kai)關是控(kong)制(zhi)(zhi)風扇轉動(dong)的(de)當水溫88度(du)左右溫控(kong)開(kai)關控(kong)制(zhi)(zhi)風扇底(di)數轉100度(du)以(yi)上風扇高速轉溫控(kong)開(kai)關一(yi)般安裝(zhuang)在水箱上或水管到發動(dong)機缸蓋的(de)地方有3根線的(de)兩根線的(de)看車(che)型不等。
4、 三條(tiao)線的那(nei)一定(ding)是(shi)(shi)電(dian)子溫控才(cai)有(you),一條(tiao)是(shi)(shi)開(kai)關(guan)那(nei)過(guo)來的負(fu)級 一條(tiao)是(shi)(shi)接到(dao)干燥瓶(ping)那(nei)個保護空調系統的開(kai)關(guan) 還有(you)一條(tiao)是(shi)(shi)電(dian)源 。
汽(qi)車(che)(che)溫(wen)(wen)(wen)(wen)控(kong)(kong)(kong)開(kai)關(guan)在空(kong)調操作面(mian)板上,溫(wen)(wen)(wen)(wen)度(du)傳(chuan)感(gan)器(qi)安裝在空(kong)調進風口位置。汽(qi)車(che)(che)上的溫(wen)(wen)(wen)(wen)控(kong)(kong)(kong)開(kai)關(guan)是(shi)起(qi)溫(wen)(wen)(wen)(wen)度(du)控(kong)(kong)(kong)制的作用,主(zhu)要(yao)是(shi)空(kong)調溫(wen)(wen)(wen)(wen)控(kong)(kong)(kong),其是(shi)控(kong)(kong)(kong)制空(kong)調壓(ya)縮機(ji)的,當設置的溫(wen)(wen)(wen)(wen)度(du)為(wei)25度(du)時車(che)(che)廂溫(wen)(wen)(wen)(wen)度(du)達(da)到了25度(du)就會關(guan)停壓(ya)縮機(ji),風扇(shan)還會運轉的,因(yin)此(ci)溫(wen)(wen)(wen)(wen)控(kong)(kong)(kong)開(kai)關(guan)是(shi)控(kong)(kong)(kong)制空(kong)調壓(ya)縮機(ji),而不是(shi)控(kong)(kong)(kong)制風扇(shan)的。汽(qi)車(che)(che)溫(wen)(wen)(wen)(wen)控(kong)(kong)(kong)開(kai)關(guan)壞了的表(biao)現:汽(qi)車(che)(che)在運行中冷(leng)卻系統(tong)溫(wen)(wen)(wen)(wen)度(du)過高會出現水(shui)溫(wen)(wen)(wen)(wen)表(biao)指針指向紅線,水(shui)溫(wen)(wen)(wen)(wen)警示燈(deng)閃亮(liang),甚至(zhi)沸騰;發動機(ji)在加速(su)時伴隨(sui)有(you)明顯的金屬敲擊聲,同時有(you)動力(li)不足、水(shui)溫(wen)(wen)(wen)(wen)警示燈(deng)閃爍(shuo)、難(nan)以(yi)熄火等(deng)現象(xiang)。
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