大連車載空調由(you)壓(ya)縮(suo)機(ji)、冷(leng)凝(ning)(ning)器(qi)(qi)(qi)、節流(liu)元(yuan)件(jian)、蒸發(fa)器(qi)(qi)(qi)、風(feng)機(ji)及必(bi)要(yao)的(de)(de)控制(zhi)(zhi)部件(jian)構成，用(yong)于調(diao)(diao)節車(che)(che)內(nei)(nei)(nei)(nei)溫度(du)(du)、濕度(du)(du)，給乘員(yuan)提供舒適環(huan)(huan)境的(de)(de)空(kong)(kong)(kong)(kong)調(diao)(diao)系統(tong)(tong)。當(dang)(dang)壓(ya)縮(suo)機(ji)工作時，壓(ya)縮(suo)機(ji)吸入(ru)(ru)從蒸發(fa)器(qi)(qi)(qi)出(chu)來的(de)(de)低(di)(di)溫低(di)(di)壓(ya)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)態制(zhi)(zhi)冷(leng)劑(ji)，經(jing)壓(ya)縮(suo)，制(zhi)(zhi)冷(leng)劑(ji)的(de)(de)溫度(du)(du)和壓(ya)力升高(gao)，并被(bei)送入(ru)(ru)冷(leng)凝(ning)(ning)器(qi)(qi)(qi)。在冷(leng)凝(ning)(ning)器(qi)(qi)(qi)內(nei)(nei)(nei)(nei)，高(gao)溫高(gao)壓(ya)的(de)(de)氣(qi)(qi)(qi)(qi)(qi)態制(zhi)(zhi)冷(leng)劑(ji)把熱量(liang)(liang)傳遞給經(jing)過(guo)冷(leng)凝(ning)(ning)器(qi)(qi)(qi)的(de)(de)車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)而液(ye)化，變(bian)成液(ye)體。液(ye)態制(zhi)(zhi)冷(leng)劑(ji)流(liu)經(jing)節流(liu)裝置時，溫度(du)(du)和壓(ya)力降低(di)(di)，并進(jin)入(ru)(ru)蒸發(fa)器(qi)(qi)(qi)。在蒸發(fa)器(qi)(qi)(qi)內(nei)(nei)(nei)(nei)，低(di)(di)溫低(di)(di)壓(ya)的(de)(de)液(ye)態制(zhi)(zhi)冷(leng)劑(ji)吸收經(jing)過(guo)蒸發(fa)器(qi)(qi)(qi)的(de)(de)車(che)(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)的(de)(de)熱量(liang)(liang)而蒸發(fa)，變(bian)成氣(qi)(qi)(qi)(qi)(qi)體。氣(qi)(qi)(qi)(qi)(qi)體又(you)(you)被(bei)壓(ya)縮(suo)機(ji)吸入(ru)(ru)進(jin)行下一輪(lun)循(xun)環(huan)(huan)。這樣(yang)，通過(guo)制(zhi)(zhi)冷(leng)劑(ji)在系統(tong)(tong)內(nei)(nei)(nei)(nei)的(de)(de)循(xun)環(huan)(huan)，不(bu)斷吸收車(che)(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)的(de)(de)熱量(liang)(liang)并排到車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)中(zhong)，使(shi)車(che)(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)的(de)(de)溫度(du)(du)逐漸(jian)下降。內(nei)(nei)(nei)(nei)循(xun)環(huan)(huan)可以提高(gao)空(kong)(kong)(kong)(kong)調(diao)(diao)效果(guo)，相當(dang)(dang)于把室內(nei)(nei)(nei)(nei)冷(leng)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)再制(zhi)(zhi)冷(leng)，空(kong)(kong)(kong)(kong)調(diao)(diao)效果(guo)當(dang)(dang)然(ran)更好了(le)。不(bu)過(guo)長時間使(shi)用(yong)內(nei)(nei)(nei)(nei)循(xun)環(huan)(huan)會使(shi)車(che)(che)內(nei)(nei)(nei)(nei)的(de)(de)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)質量(liang)(liang)降低(di)(di)，可能(neng)(neng)讓(rang)人感(gan)覺(jue)頭昏腦漲(zhang)。應當(dang)(dang)開一會兒(er)內(nei)(nei)(nei)(nei)循(xun)環(huan)(huan)就使(shi)用(yong)幾(ji)分鐘外(wai)(wai)循(xun)環(huan)(huan)，讓(rang)新鮮空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)進(jin)入(ru)(ru)車(che)(che)內(nei)(nei)(nei)(nei)，改善空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)質量(liang)(liang)。如果(guo)空(kong)(kong)(kong)(kong)調(diao)(diao)內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)環(huan)(huan)開關是機(ji)械式的(de)(de)撥(bo)(bo)桿而非按鈕，可以把撥(bo)(bo)桿放在內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)環(huan)(huan)的(de)(de)中(zhong)間，讓(rang)車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)適量(liang)(liang)進(jin)入(ru)(ru)，既能(neng)(neng)提升空(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)(qi)質量(liang)(liang)，又(you)(you)能(neng)(neng)提高(gao)空(kong)(kong)(kong)(kong)調(diao)(diao)效果(guo)。此外(wai)(wai)，在使(shi)用(yong)空(kong)(kong)(kong)(kong)調(diao)(diao)除(chu)霜除(chu)霧(wu)時，要(yao)使(shi)用(yong)外(wai)(wai)循(xun)環(huan)(huan)才有效。