汽(qi)車空調的(de)溫控開關原理:
1、溫(wen)(wen)控(kong)開關(guan)內部有(you)個(ge)雙(shuang)金屬片,具有(you)不同的(de)熱(re)膨脹系(xi)數,這樣就能在達到一定范圍(wei)的(de)臨界點溫(wen)(wen)度(du)時發生(sheng)形變使觸(chu)點結合,達到通電的(de)目的(de),低(di)于(yu)這個(ge)溫(wen)(wen)度(du)范圍(wei)后回(hui)復到起始位置(zhi),斷開線路(lu)。這是機械式的(de)。在溫(wen)(wen)控(kong)開關(guan)表面會標有(you)數值,例如(ru)78或者83等等。
2、還(huan)有熱電(dian)偶式的(de)(de)(de),也(ye)就是不同(tong)的(de)(de)(de)溫度有不同(tong)的(de)(de)(de)電(dian)阻(zu),行(xing)車電(dian)腦獲取數據(ju)后作出(chu)開啟或(huo)關(guan)閉(bi)的(de)(de)(de)指令。
3、溫(wen)控(kong)(kong)(kong)開關是控(kong)(kong)(kong)制(zhi)(zhi)風扇(shan)轉動的(de)(de)當水溫(wen)88度(du)左右溫(wen)控(kong)(kong)(kong)開關控(kong)(kong)(kong)制(zhi)(zhi)風扇(shan)底(di)數轉100度(du)以上風扇(shan)高速(su)轉溫(wen)控(kong)(kong)(kong)開關一般安裝在水箱上或水管到發(fa)動機缸蓋的(de)(de)地方有3根(gen)線(xian)的(de)(de)兩根(gen)線(xian)的(de)(de)看(kan)車型(xing)不等。
4、 三條線的那(nei)一(yi)定(ding)是(shi)電子溫(wen)控才有,一(yi)條是(shi)開關那(nei)過來的負(fu)級 一(yi)條是(shi)接到干燥瓶那(nei)個(ge)保(bao)護(hu)空調(diao)系統的開關 還有一(yi)條是(shi)電源(yuan) 。
汽車溫(wen)(wen)控(kong)(kong)開(kai)(kai)關(guan)在(zai)空調(diao)(diao)操作面板上(shang),溫(wen)(wen)度(du)(du)傳感器安裝在(zai)空調(diao)(diao)進(jin)風口(kou)位置。汽車上(shang)的(de)(de)溫(wen)(wen)控(kong)(kong)開(kai)(kai)關(guan)是(shi)(shi)起溫(wen)(wen)度(du)(du)控(kong)(kong)制(zhi)的(de)(de)作用,主(zhu)要是(shi)(shi)空調(diao)(diao)溫(wen)(wen)控(kong)(kong),其是(shi)(shi)控(kong)(kong)制(zhi)空調(diao)(diao)壓縮機的(de)(de),當(dang)設(she)置的(de)(de)溫(wen)(wen)度(du)(du)為25度(du)(du)時車廂(xiang)溫(wen)(wen)度(du)(du)達到了25度(du)(du)就(jiu)會(hui)關(guan)停壓縮機,風扇還(huan)會(hui)運(yun)轉(zhuan)的(de)(de),因此溫(wen)(wen)控(kong)(kong)開(kai)(kai)關(guan)是(shi)(shi)控(kong)(kong)制(zhi)空調(diao)(diao)壓縮機,而不(bu)是(shi)(shi)控(kong)(kong)制(zhi)風扇的(de)(de)。汽車溫(wen)(wen)控(kong)(kong)開(kai)(kai)關(guan)壞了的(de)(de)表(biao)(biao)現(xian)(xian):汽車在(zai)運(yun)行中冷卻系統溫(wen)(wen)度(du)(du)過高會(hui)出現(xian)(xian)水(shui)(shui)溫(wen)(wen)表(biao)(biao)指針指向紅線(xian),水(shui)(shui)溫(wen)(wen)警示(shi)燈(deng)閃亮(liang),甚至沸騰(teng);發(fa)動(dong)機在(zai)加速(su)時伴(ban)隨有明顯的(de)(de)金屬敲擊聲,同時有動(dong)力不(bu)足(zu)、水(shui)(shui)溫(wen)(wen)警示(shi)燈(deng)閃爍、難以熄(xi)火等現(xian)(xian)象。
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