空調壓力(li)傳感(gan)器壓力(li)傳感(gan)器是一種能將檢測(ce)到的(de)(de)壓力(li)信(xin)號轉換成電子信(xin)號,由電腦板(ban)芯片(pian)進行(xing)微(wei)處理,根據壓力(li)檢測(ce)的(de)(de)結果對空調機的(de)(de)零部件進行(xing)精細(xi)的(de)(de)控制。
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)(ya)(ya)(ya)(ya)力(li)傳(chuan)感(gan)器(qi)是自動(dong)空(kong)調(diao)(diao)控制(zhi)(zhi)(zhi)(zhi)系統(tong)的一個傳(chuan)感(gan)器(qi)元件,其作用是防止制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)系統(tong)在(zai)極限(xian)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑管(guan)(guan)路壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)下工(gong)作,并(bing)幫助控制(zhi)(zhi)(zhi)(zhi)發動(dong)機(ji)(ji)冷(leng)(leng)卻風扇的轉(zhuan)速。 壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)傳(chuan)感(gan)器(qi)安裝在(zai)發動(dong)機(ji)(ji)艙內空(kong)調(diao)(diao)高壓(ya)(ya)(ya)(ya)(ya)(ya)管(guan)(guan)路上。該傳(chuan)感(gan)器(qi)向發動(dong)機(ji)(ji)ECM或空(kong)調(diao)(diao)控制(zhi)(zhi)(zhi)(zhi)單元輸(shu)出(chu)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)信號,當檢測到空(kong)調(diao)(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)管(guan)(guan)路壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)過(guo)低(di)或過(guo)高時(shi),控制(zhi)(zhi)(zhi)(zhi)系統(tong)停止對空(kong)調(diao)(diao)壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)機(ji)(ji)離合器(qi)供(gong)電,壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)機(ji)(ji)停止運(yun)轉(zhuan),以免對空(kong)調(diao)(diao)系統(tong)造成(cheng)損壞(huai)。當制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)達到一中(zhong)等壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)值時(shi),散熱器(qi)風扇高速運(yun)轉(zhuan),降低(di)空(kong)調(diao)(diao)制(zhi)(zhi)(zhi)(zhi)冷(leng)(leng)劑壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)。
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