大連車載空調由壓(ya)(ya)縮機(ji)、冷(leng)凝(ning)器(qi)(qi)、節(jie)流(liu)元件、蒸(zheng)(zheng)發(fa)(fa)器(qi)(qi)、風機(ji)及必要(yao)的(de)(de)(de)控制(zhi)(zhi)(zhi)(zhi)部(bu)件構(gou)成(cheng)，用于調(diao)節(jie)車(che)內(nei)(nei)(nei)(nei)溫度、濕度，給(gei)乘(cheng)員提(ti)(ti)供舒適環(huan)(huan)(huan)(huan)境的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)系統。當(dang)壓(ya)(ya)縮機(ji)工作(zuo)時，壓(ya)(ya)縮機(ji)吸(xi)入(ru)(ru)從蒸(zheng)(zheng)發(fa)(fa)器(qi)(qi)出來的(de)(de)(de)低(di)(di)(di)溫低(di)(di)(di)壓(ya)(ya)的(de)(de)(de)氣(qi)(qi)態制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)，經(jing)(jing)壓(ya)(ya)縮，制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)的(de)(de)(de)溫度和壓(ya)(ya)力(li)升(sheng)(sheng)高，并被送入(ru)(ru)冷(leng)凝(ning)器(qi)(qi)。在冷(leng)凝(ning)器(qi)(qi)內(nei)(nei)(nei)(nei)，高溫高壓(ya)(ya)的(de)(de)(de)氣(qi)(qi)態制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)把熱(re)量(liang)傳遞給(gei)經(jing)(jing)過(guo)冷(leng)凝(ning)器(qi)(qi)的(de)(de)(de)車(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)而(er)液(ye)化，變成(cheng)液(ye)體(ti)。液(ye)態制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)流(liu)經(jing)(jing)節(jie)流(liu)裝置時，溫度和壓(ya)(ya)力(li)降低(di)(di)(di)，并進入(ru)(ru)蒸(zheng)(zheng)發(fa)(fa)器(qi)(qi)。在蒸(zheng)(zheng)發(fa)(fa)器(qi)(qi)內(nei)(nei)(nei)(nei)，低(di)(di)(di)溫低(di)(di)(di)壓(ya)(ya)的(de)(de)(de)液(ye)態制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)吸(xi)收(shou)經(jing)(jing)過(guo)蒸(zheng)(zheng)發(fa)(fa)器(qi)(qi)的(de)(de)(de)車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)熱(re)量(liang)而(er)蒸(zheng)(zheng)發(fa)(fa)，變成(cheng)氣(qi)(qi)體(ti)。氣(qi)(qi)體(ti)又(you)被壓(ya)(ya)縮機(ji)吸(xi)入(ru)(ru)進行下(xia)一(yi)輪循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)。這樣，通(tong)過(guo)制(zhi)(zhi)(zhi)(zhi)冷(leng)劑(ji)在系統內(nei)(nei)(nei)(nei)的(de)(de)(de)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)，不斷吸(xi)收(shou)車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)熱(re)量(liang)并排到(dao)車(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)中(zhong)，使(shi)(shi)(shi)車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)溫度逐(zhu)漸下(xia)降。內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)可以提(ti)(ti)高空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)(xiao)(xiao)果(guo)(guo)，相當(dang)于把室(shi)內(nei)(nei)(nei)(nei)冷(leng)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)再制(zhi)(zhi)(zhi)(zhi)冷(leng)，空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)(xiao)(xiao)果(guo)(guo)當(dang)然(ran)更(geng)好了(le)。不過(guo)長時間(jian)使(shi)(shi)(shi)用內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)會(hui)使(shi)(shi)(shi)車(che)內(nei)(nei)(nei)(nei)的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)質量(liang)降低(di)(di)(di)，可能讓(rang)(rang)(rang)人感覺頭昏(hun)腦漲(zhang)。應當(dang)開一(yi)會(hui)兒內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)就使(shi)(shi)(shi)用幾分鐘外(wai)(wai)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)，讓(rang)(rang)(rang)新鮮空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)進入(ru)(ru)車(che)內(nei)(nei)(nei)(nei)，改善空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)質量(liang)。如果(guo)(guo)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)開關是機(ji)械式的(de)(de)(de)撥桿而(er)非按(an)鈕，可以把撥桿放(fang)在內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)的(de)(de)(de)中(zhong)間(jian)，讓(rang)(rang)(rang)車(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)適量(liang)進入(ru)(ru)，既(ji)能提(ti)(ti)升(sheng)(sheng)空(kong)(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)質量(liang)，又(you)能提(ti)(ti)高空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)(xiao)(xiao)果(guo)(guo)。此外(wai)(wai)，在使(shi)(shi)(shi)用空(kong)(kong)(kong)(kong)(kong)(kong)(kong)調(diao)除(chu)霜除(chu)霧時，要(yao)使(shi)(shi)(shi)用外(wai)(wai)循(xun)(xun)(xun)(xun)環(huan)(huan)(huan)(huan)才有效(xiao)(xiao)(xiao)。