空調壓(ya)力(li)(li)傳(chuan)(chuan)感器壓(ya)力(li)(li)傳(chuan)(chuan)感器是(shi)一種(zhong)能將檢測(ce)到的壓(ya)力(li)(li)信號轉換成電(dian)子信號,由電(dian)腦板芯片進行微處理,根(gen)據壓(ya)力(li)(li)檢測(ce)的結果對空調機的零部件(jian)進行精細的控制(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)(kong)(kong)調(diao)(diao)(diao)壓(ya)力(li)(li)(li)傳感(gan)(gan)器(qi)是自動(dong)空(kong)(kong)(kong)調(diao)(diao)(diao)控(kong)(kong)制(zhi)(zhi)系(xi)統(tong)的(de)一個傳感(gan)(gan)器(qi)元(yuan)件,其作(zuo)用(yong)是防(fang)止(zhi)制(zhi)(zhi)冷(leng)系(xi)統(tong)在(zai)極限制(zhi)(zhi)冷(leng)劑管路(lu)壓(ya)力(li)(li)(li)下工(gong)作(zuo),并幫助控(kong)(kong)制(zhi)(zhi)發動(dong)機(ji)冷(leng)卻(que)風扇(shan)(shan)的(de)轉速(su)。 壓(ya)力(li)(li)(li)傳感(gan)(gan)器(qi)安裝在(zai)發動(dong)機(ji)艙內(nei)空(kong)(kong)(kong)調(diao)(diao)(diao)高壓(ya)管路(lu)上。該傳感(gan)(gan)器(qi)向發動(dong)機(ji)ECM或空(kong)(kong)(kong)調(diao)(diao)(diao)控(kong)(kong)制(zhi)(zhi)單元(yuan)輸出(chu)壓(ya)力(li)(li)(li)信號,當檢測到空(kong)(kong)(kong)調(diao)(diao)(diao)制(zhi)(zhi)冷(leng)管路(lu)壓(ya)力(li)(li)(li)過(guo)(guo)低或過(guo)(guo)高時,控(kong)(kong)制(zhi)(zhi)系(xi)統(tong)停(ting)止(zhi)對空(kong)(kong)(kong)調(diao)(diao)(diao)壓(ya)縮機(ji)離合器(qi)供(gong)電,壓(ya)縮機(ji)停(ting)止(zhi)運(yun)轉,以免(mian)對空(kong)(kong)(kong)調(diao)(diao)(diao)系(xi)統(tong)造成(cheng)損(sun)壞。當制(zhi)(zhi)冷(leng)劑壓(ya)力(li)(li)(li)達到一中等壓(ya)力(li)(li)(li)值(zhi)時,散熱(re)器(qi)風扇(shan)(shan)高速(su)運(yun)轉,降低空(kong)(kong)(kong)調(diao)(diao)(diao)制(zhi)(zhi)冷(leng)劑壓(ya)力(li)(li)(li)。
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