大連車載空調由(you)壓(ya)(ya)縮機(ji)、冷(leng)凝器(qi)、節(jie)流元件、蒸(zheng)(zheng)發(fa)器(qi)、風機(ji)及必要的(de)(de)控制(zhi)部件構成(cheng)(cheng)，用于調(diao)(diao)節(jie)車(che)內(nei)(nei)溫(wen)(wen)度、濕(shi)度，給(gei)乘(cheng)員提供(gong)舒適環(huan)境(jing)的(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)系統(tong)(tong)。當壓(ya)(ya)縮機(ji)工作時(shi)，壓(ya)(ya)縮機(ji)吸(xi)入(ru)(ru)從蒸(zheng)(zheng)發(fa)器(qi)出來的(de)(de)低溫(wen)(wen)低壓(ya)(ya)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)態(tai)(tai)制(zhi)冷(leng)劑(ji)，經壓(ya)(ya)縮，制(zhi)冷(leng)劑(ji)的(de)(de)溫(wen)(wen)度和壓(ya)(ya)力升(sheng)高(gao)，并(bing)被(bei)送入(ru)(ru)冷(leng)凝器(qi)。在冷(leng)凝器(qi)內(nei)(nei)，高(gao)溫(wen)(wen)高(gao)壓(ya)(ya)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)(qi)態(tai)(tai)制(zhi)冷(leng)劑(ji)把熱(re)量(liang)傳遞給(gei)經過冷(leng)凝器(qi)的(de)(de)車(che)外空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)而液化(hua)，變(bian)(bian)成(cheng)(cheng)液體。液態(tai)(tai)制(zhi)冷(leng)劑(ji)流經節(jie)流裝置時(shi)，溫(wen)(wen)度和壓(ya)(ya)力降低，并(bing)進(jin)(jin)入(ru)(ru)蒸(zheng)(zheng)發(fa)器(qi)。在蒸(zheng)(zheng)發(fa)器(qi)內(nei)(nei)，低溫(wen)(wen)低壓(ya)(ya)的(de)(de)液態(tai)(tai)制(zhi)冷(leng)劑(ji)吸(xi)收經過蒸(zheng)(zheng)發(fa)器(qi)的(de)(de)車(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)熱(re)量(liang)而蒸(zheng)(zheng)發(fa)，變(bian)(bian)成(cheng)(cheng)氣(qi)(qi)(qi)(qi)(qi)(qi)體。氣(qi)(qi)(qi)(qi)(qi)(qi)體又被(bei)壓(ya)(ya)縮機(ji)吸(xi)入(ru)(ru)進(jin)(jin)行下(xia)一輪循(xun)(xun)(xun)環(huan)。這樣，通過制(zhi)冷(leng)劑(ji)在系統(tong)(tong)內(nei)(nei)的(de)(de)循(xun)(xun)(xun)環(huan)，不(bu)斷吸(xi)收車(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)熱(re)量(liang)并(bing)排到車(che)外空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)中，使(shi)(shi)車(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)溫(wen)(wen)度逐(zhu)漸下(xia)降。內(nei)(nei)循(xun)(xun)(xun)環(huan)可以(yi)提高(gao)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)效(xiao)果，相當于把室內(nei)(nei)冷(leng)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)再制(zhi)冷(leng)，空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)效(xiao)果當然更好了。不(bu)過長時(shi)間使(shi)(shi)用內(nei)(nei)循(xun)(xun)(xun)環(huan)會(hui)使(shi)(shi)車(che)內(nei)(nei)的(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)質量(liang)降低，可能(neng)讓人感覺頭昏腦漲(zhang)。應當開一會(hui)兒內(nei)(nei)循(xun)(xun)(xun)環(huan)就(jiu)使(shi)(shi)用幾分鐘(zhong)外循(xun)(xun)(xun)環(huan)，讓新鮮(xian)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)進(jin)(jin)入(ru)(ru)車(che)內(nei)(nei)，改善空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)質量(liang)。如果空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)內(nei)(nei)外循(xun)(xun)(xun)環(huan)開關是機(ji)械(xie)式的(de)(de)撥(bo)桿而非按鈕，可以(yi)把撥(bo)桿放在內(nei)(nei)外循(xun)(xun)(xun)環(huan)的(de)(de)中間，讓車(che)外空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)適量(liang)進(jin)(jin)入(ru)(ru)，既能(neng)提升(sheng)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)(qi)質量(liang)，又能(neng)提高(gao)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)效(xiao)果。此(ci)外，在使(shi)(shi)用空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)(diao)除(chu)(chu)霜除(chu)(chu)霧(wu)時(shi)，要使(shi)(shi)用外循(xun)(xun)(xun)環(huan)才有(you)效(xiao)。