空(kong)調壓力(li)(li)傳(chuan)(chuan)感(gan)器壓力(li)(li)傳(chuan)(chuan)感(gan)器是(shi)一(yi)種能將檢測到的壓力(li)(li)信號(hao)轉(zhuan)換成電子信號(hao),由電腦板芯片進(jin)行(xing)微處理,根據壓力(li)(li)檢測的結果對空(kong)調機的零(ling)部件(jian)進(jin)行(xing)精細的控制(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)(diao)壓(ya)(ya)(ya)力(li)傳(chuan)感器是自動(dong)(dong)空(kong)調(diao)(diao)(diao)控(kong)制(zhi)(zhi)(zhi)(zhi)系(xi)統(tong)的一(yi)個傳(chuan)感器元(yuan)件,其作用是防止(zhi)制(zhi)(zhi)(zhi)(zhi)冷(leng)系(xi)統(tong)在(zai)極限制(zhi)(zhi)(zhi)(zhi)冷(leng)劑管路(lu)壓(ya)(ya)(ya)力(li)下工(gong)作,并幫助控(kong)制(zhi)(zhi)(zhi)(zhi)發(fa)動(dong)(dong)機(ji)(ji)(ji)冷(leng)卻風扇的轉速。 壓(ya)(ya)(ya)力(li)傳(chuan)感器安裝在(zai)發(fa)動(dong)(dong)機(ji)(ji)(ji)艙內(nei)空(kong)調(diao)(diao)(diao)高壓(ya)(ya)(ya)管路(lu)上。該傳(chuan)感器向發(fa)動(dong)(dong)機(ji)(ji)(ji)ECM或(huo)空(kong)調(diao)(diao)(diao)控(kong)制(zhi)(zhi)(zhi)(zhi)單元(yuan)輸出壓(ya)(ya)(ya)力(li)信號(hao),當檢測到空(kong)調(diao)(diao)(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)管路(lu)壓(ya)(ya)(ya)力(li)過(guo)低或(huo)過(guo)高時(shi),控(kong)制(zhi)(zhi)(zhi)(zhi)系(xi)統(tong)停止(zhi)對空(kong)調(diao)(diao)(diao)壓(ya)(ya)(ya)縮機(ji)(ji)(ji)離(li)合器供電(dian),壓(ya)(ya)(ya)縮機(ji)(ji)(ji)停止(zhi)運轉,以(yi)免(mian)對空(kong)調(diao)(diao)(diao)系(xi)統(tong)造成(cheng)損(sun)壞。當制(zhi)(zhi)(zhi)(zhi)冷(leng)劑壓(ya)(ya)(ya)力(li)達到一(yi)中等壓(ya)(ya)(ya)力(li)值時(shi),散熱器風扇高速運轉,降低空(kong)調(diao)(diao)(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)劑壓(ya)(ya)(ya)力(li)。
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