大連車載空調由壓(ya)(ya)(ya)縮(suo)機(ji)(ji)、冷(leng)(leng)(leng)凝器(qi)(qi)、節(jie)流元件(jian)、蒸發器(qi)(qi)、風機(ji)(ji)及必(bi)要的(de)(de)(de)控(kong)制(zhi)部件(jian)構成(cheng)，用(yong)(yong)于(yu)調(diao)節(jie)車(che)(che)內(nei)(nei)溫(wen)(wen)度(du)、濕度(du)，給乘員提(ti)供舒適(shi)環(huan)(huan)境的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)系統。當(dang)(dang)壓(ya)(ya)(ya)縮(suo)機(ji)(ji)工作時(shi)，壓(ya)(ya)(ya)縮(suo)機(ji)(ji)吸(xi)入(ru)(ru)從蒸發器(qi)(qi)出來的(de)(de)(de)低(di)溫(wen)(wen)低(di)壓(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)(qi)態制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)，經(jing)壓(ya)(ya)(ya)縮(suo)，制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)的(de)(de)(de)溫(wen)(wen)度(du)和壓(ya)(ya)(ya)力升(sheng)高，并被送入(ru)(ru)冷(leng)(leng)(leng)凝器(qi)(qi)。在冷(leng)(leng)(leng)凝器(qi)(qi)內(nei)(nei)，高溫(wen)(wen)高壓(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)(qi)態制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)把熱量(liang)(liang)(liang)傳(chuan)遞(di)給經(jing)過(guo)(guo)冷(leng)(leng)(leng)凝器(qi)(qi)的(de)(de)(de)車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)而液化(hua)，變成(cheng)液體(ti)(ti)。液態制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)流經(jing)節(jie)流裝置時(shi)，溫(wen)(wen)度(du)和壓(ya)(ya)(ya)力降(jiang)低(di)，并進(jin)入(ru)(ru)蒸發器(qi)(qi)。在蒸發器(qi)(qi)內(nei)(nei)，低(di)溫(wen)(wen)低(di)壓(ya)(ya)(ya)的(de)(de)(de)液態制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)吸(xi)收經(jing)過(guo)(guo)蒸發器(qi)(qi)的(de)(de)(de)車(che)(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)熱量(liang)(liang)(liang)而蒸發，變成(cheng)氣(qi)(qi)(qi)體(ti)(ti)。氣(qi)(qi)(qi)體(ti)(ti)又被壓(ya)(ya)(ya)縮(suo)機(ji)(ji)吸(xi)入(ru)(ru)進(jin)行下一(yi)輪(lun)循(xun)(xun)環(huan)(huan)。這樣，通過(guo)(guo)制(zhi)冷(leng)(leng)(leng)劑(ji)(ji)在系統內(nei)(nei)的(de)(de)(de)循(xun)(xun)環(huan)(huan)，不(bu)斷吸(xi)收車(che)(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)熱量(liang)(liang)(liang)并排到(dao)車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)中，使(shi)(shi)(shi)(shi)車(che)(che)內(nei)(nei)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)溫(wen)(wen)度(du)逐漸下降(jiang)。內(nei)(nei)循(xun)(xun)環(huan)(huan)可以提(ti)高空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果(guo)(guo)，相當(dang)(dang)于(yu)把室內(nei)(nei)冷(leng)(leng)(leng)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)再制(zhi)冷(leng)(leng)(leng)，空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果(guo)(guo)當(dang)(dang)然更好了。不(bu)過(guo)(guo)長時(shi)間(jian)使(shi)(shi)(shi)(shi)用(yong)(yong)內(nei)(nei)循(xun)(xun)環(huan)(huan)會(hui)使(shi)(shi)(shi)(shi)車(che)(che)內(nei)(nei)的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)質量(liang)(liang)(liang)降(jiang)低(di)，可能(neng)讓人感覺頭昏腦漲。應當(dang)(dang)開(kai)一(yi)會(hui)兒內(nei)(nei)循(xun)(xun)環(huan)(huan)就使(shi)(shi)(shi)(shi)用(yong)(yong)幾分鐘外(wai)(wai)循(xun)(xun)環(huan)(huan)，讓新鮮空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)進(jin)入(ru)(ru)車(che)(che)內(nei)(nei)，改善空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)質量(liang)(liang)(liang)。如果(guo)(guo)空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)內(nei)(nei)外(wai)(wai)循(xun)(xun)環(huan)(huan)開(kai)關是機(ji)(ji)械式(shi)的(de)(de)(de)撥(bo)桿而非按(an)鈕(niu)，可以把撥(bo)桿放在內(nei)(nei)外(wai)(wai)循(xun)(xun)環(huan)(huan)的(de)(de)(de)中間(jian)，讓車(che)(che)外(wai)(wai)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)適(shi)量(liang)(liang)(liang)進(jin)入(ru)(ru)，既能(neng)提(ti)升(sheng)空(kong)(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)質量(liang)(liang)(liang)，又能(neng)提(ti)高空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果(guo)(guo)。此外(wai)(wai)，在使(shi)(shi)(shi)(shi)用(yong)(yong)空(kong)(kong)(kong)(kong)(kong)(kong)調(diao)除霜除霧時(shi)，要使(shi)(shi)(shi)(shi)用(yong)(yong)外(wai)(wai)循(xun)(xun)環(huan)(huan)才有效(xiao)。