汽車空調的(de)溫控(kong)開關原(yuan)理:
1、溫(wen)控(kong)開(kai)(kai)關(guan)內部有(you)(you)個雙金屬片(pian),具有(you)(you)不同的(de)(de)(de)熱(re)膨脹系數,這樣就能在達到一定范(fan)圍的(de)(de)(de)臨界點(dian)溫(wen)度時發生形變使觸點(dian)結合,達到通電(dian)的(de)(de)(de)目的(de)(de)(de),低于這個溫(wen)度范(fan)圍后回(hui)復到起始位置,斷開(kai)(kai)線路。這是(shi)機(ji)械式的(de)(de)(de)。在溫(wen)控(kong)開(kai)(kai)關(guan)表面(mian)會標(biao)有(you)(you)數值,例如(ru)78或者83等(deng)等(deng)。
2、還有熱電偶(ou)式的,也(ye)就是不同的溫度有不同的電阻(zu),行(xing)車電腦獲取數據后作出開(kai)啟或關閉的指令。
3、溫控(kong)(kong)開(kai)(kai)關(guan)是控(kong)(kong)制(zhi)風扇(shan)轉(zhuan)動的當(dang)水(shui)溫88度(du)左右溫控(kong)(kong)開(kai)(kai)關(guan)控(kong)(kong)制(zhi)風扇(shan)底數轉(zhuan)100度(du)以上(shang)風扇(shan)高(gao)速轉(zhuan)溫控(kong)(kong)開(kai)(kai)關(guan)一般安裝在水(shui)箱上(shang)或水(shui)管到發動機缸蓋的地方有3根(gen)線的兩(liang)根(gen)線的看車型不等。
4、 三(san)條(tiao)線的那(nei)一(yi)定是電子溫控才有,一(yi)條(tiao)是開(kai)關那(nei)過來的負級 一(yi)條(tiao)是接到干燥(zao)瓶(ping)那(nei)個保護空調(diao)系統的開(kai)關 還(huan)有一(yi)條(tiao)是電源 。
汽(qi)車(che)溫(wen)(wen)(wen)控(kong)(kong)開(kai)(kai)關在(zai)(zai)空(kong)調操作面板(ban)上,溫(wen)(wen)(wen)度傳感器安裝在(zai)(zai)空(kong)調進(jin)風(feng)口位置(zhi)。汽(qi)車(che)上的(de)(de)(de)溫(wen)(wen)(wen)控(kong)(kong)開(kai)(kai)關是(shi)(shi)(shi)起溫(wen)(wen)(wen)度控(kong)(kong)制(zhi)的(de)(de)(de)作用(yong),主要是(shi)(shi)(shi)空(kong)調溫(wen)(wen)(wen)控(kong)(kong),其是(shi)(shi)(shi)控(kong)(kong)制(zhi)空(kong)調壓縮機的(de)(de)(de),當設置(zhi)的(de)(de)(de)溫(wen)(wen)(wen)度為25度時車(che)廂溫(wen)(wen)(wen)度達到了25度就會(hui)關停壓縮機,風(feng)扇還會(hui)運轉的(de)(de)(de),因(yin)此溫(wen)(wen)(wen)控(kong)(kong)開(kai)(kai)關是(shi)(shi)(shi)控(kong)(kong)制(zhi)空(kong)調壓縮機,而不是(shi)(shi)(shi)控(kong)(kong)制(zhi)風(feng)扇的(de)(de)(de)。汽(qi)車(che)溫(wen)(wen)(wen)控(kong)(kong)開(kai)(kai)關壞(huai)了的(de)(de)(de)表現:汽(qi)車(che)在(zai)(zai)運行中冷卻系統(tong)溫(wen)(wen)(wen)度過高會(hui)出現水溫(wen)(wen)(wen)表指針指向紅線,水溫(wen)(wen)(wen)警(jing)示(shi)燈(deng)閃亮,甚至(zhi)沸騰;發動(dong)機在(zai)(zai)加速時伴隨有明顯(xian)的(de)(de)(de)金屬(shu)敲(qiao)擊聲,同時有動(dong)力不足、水溫(wen)(wen)(wen)警(jing)示(shi)燈(deng)閃爍、難以熄火等(deng)現象。
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