車載空調裝配工作時，壓縮機吸入從蒸發器出來的低溫低壓的氣態制冷劑，經壓縮，制冷劑的溫度和壓力升高，并被送入冷凝器。在冷凝器內，高溫高壓的氣態制冷劑把熱量傳遞給經過冷凝器的車外空氣而液化，變成液體。液態制冷劑流經節流裝置時，溫度和壓力降低，并進入蒸發器。車載空調由壓縮(suo)機、冷(leng)(leng)凝(ning)器(qi)、節流元件、蒸(zheng)發(fa)器(qi)、風機及必要(yao)的控制部件構成，用于調(diao)節車(che)內(nei)溫(wen)度(du)(du)(du)、濕度(du)(du)(du)，給乘員提供(gong)舒適環境的空(kong)(kong)(kong)(kong)調(diao)系統。在(zai)蒸(zheng)發(fa)器(qi)內(nei)，低(di)溫(wen)低(di)壓的液態制冷(leng)(leng)劑吸收經過蒸(zheng)發(fa)器(qi)的車(che)內(nei)空(kong)(kong)(kong)(kong)氣(qi)的熱(re)量而(er)蒸(zheng)發(fa)，變(bian)成氣(qi)體。氣(qi)體又被(bei)壓縮(suo)機吸入進行(xing)下一輪(lun)循環。這樣，通(tong)過制冷(leng)(leng)劑在(zai)系統內(nei)的循環，不斷吸收車(che)內(nei)空(kong)(kong)(kong)(kong)氣(qi)的熱(re)量并排(pai)到車(che)外空(kong)(kong)(kong)(kong)氣(qi)中，使車(che)內(nei)空(kong)(kong)(kong)(kong)氣(qi)的溫(wen)度(du)(du)(du)逐漸下降。室外暴曬之下的汽車(che)，車(che)內(nei)溫(wen)度(du)(du)(du)可(ke)(ke)達50℃。每(mei)次剛剛上車(che)，車(che)主都是(shi)備受煎熬(ao)。即使打開(kai)空(kong)(kong)(kong)(kong)調(diao)，光(guang)靠空(kong)(kong)(kong)(kong)調(diao)把50℃的熱(re)氣(qi)變(bian)冷(leng)(leng)，可(ke)(ke)有點困難。你只能感(gan)覺到出風口一絲涼意，緊靠坐椅(yi)的臀部背部依然酷熱(re)難耐。每(mei)隔一段時(shi)間(jian)，需將空(kong)(kong)(kong)(kong)調(diao)開(kai)到最大檔，約10分鐘左右(you)即可(ke)(ke)有效杜(du)絕灰塵積(ji)聚。或者在(zai)洗車(che)時(shi)順便清洗空(kong)(kong)(kong)(kong)調(diao)濾網，如有可(ke)(ke)能，適當使用空(kong)(kong)(kong)(kong)調(diao)清洗劑也是(shi)有幫助的。