空(kong)調壓力(li)(li)傳(chuan)感器壓力(li)(li)傳(chuan)感器是一種能將檢(jian)測(ce)到的壓力(li)(li)信號(hao)轉(zhuan)換(huan)成(cheng)電(dian)子信號(hao),由電(dian)腦板芯片進(jin)行微處理,根據壓力(li)(li)檢(jian)測(ce)的結果對空(kong)調機的零部(bu)件進(jin)行精細(xi)的控制(zhi)。
1、工作原理
為兩種壓力傳感器的外觀,如今絕大多數壓力傳感器都是電容式壓力傳感器,它由兩個靠近的平行膜片和一個堅固的小巧殼體構成。空(kong)調(diao)(diao)壓(ya)(ya)力(li)(li)(li)傳感器是自動(dong)空(kong)調(diao)(diao)控制(zhi)(zhi)(zhi)系統(tong)的一(yi)個(ge)傳感器元件,其作用是防止(zhi)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)系統(tong)在(zai)極限(xian)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑管(guan)路(lu)壓(ya)(ya)力(li)(li)(li)下工作,并幫(bang)助控制(zhi)(zhi)(zhi)發動(dong)機(ji)(ji)(ji)冷(leng)(leng)(leng)卻風扇(shan)(shan)的轉(zhuan)速。 壓(ya)(ya)力(li)(li)(li)傳感器安裝在(zai)發動(dong)機(ji)(ji)(ji)艙內空(kong)調(diao)(diao)高(gao)壓(ya)(ya)管(guan)路(lu)上(shang)。該傳感器向(xiang)發動(dong)機(ji)(ji)(ji)ECM或(huo)空(kong)調(diao)(diao)控制(zhi)(zhi)(zhi)單(dan)元輸出壓(ya)(ya)力(li)(li)(li)信號,當檢測到空(kong)調(diao)(diao)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)管(guan)路(lu)壓(ya)(ya)力(li)(li)(li)過低(di)或(huo)過高(gao)時(shi),控制(zhi)(zhi)(zhi)系統(tong)停(ting)止(zhi)對空(kong)調(diao)(diao)壓(ya)(ya)縮機(ji)(ji)(ji)離合器供電(dian),壓(ya)(ya)縮機(ji)(ji)(ji)停(ting)止(zhi)運轉(zhuan),以免對空(kong)調(diao)(diao)系統(tong)造成(cheng)損(sun)壞。當制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑壓(ya)(ya)力(li)(li)(li)達到一(yi)中等壓(ya)(ya)力(li)(li)(li)值時(shi),散熱器風扇(shan)(shan)高(gao)速運轉(zhuan),降低(di)空(kong)調(diao)(diao)制(zhi)(zhi)(zhi)冷(leng)(leng)(leng)劑壓(ya)(ya)力(li)(li)(li)。
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