空調壓(ya)力(li)傳感器壓(ya)力(li)傳感器是一(yi)種能將檢測到(dao)的(de)壓(ya)力(li)信(xin)號轉換成電(dian)(dian)子信(xin)號,由電(dian)(dian)腦板芯(xin)片進行微處理,根(gen)據壓(ya)力(li)檢測的(de)結果對空調機的(de)零部件進行精細的(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。空調(diao)(diao)壓(ya)(ya)(ya)力(li)(li)傳(chuan)感器(qi)是(shi)自動(dong)(dong)空調(diao)(diao)控(kong)制(zhi)(zhi)系(xi)(xi)統(tong)的一個傳(chuan)感器(qi)元件(jian),其(qi)作用(yong)是(shi)防止制(zhi)(zhi)冷(leng)(leng)(leng)系(xi)(xi)統(tong)在極限制(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)管(guan)路(lu)壓(ya)(ya)(ya)力(li)(li)下工(gong)作,并幫助控(kong)制(zhi)(zhi)發(fa)動(dong)(dong)機(ji)冷(leng)(leng)(leng)卻風扇的轉速(su)。 壓(ya)(ya)(ya)力(li)(li)傳(chuan)感器(qi)安裝在發(fa)動(dong)(dong)機(ji)艙內空調(diao)(diao)高(gao)壓(ya)(ya)(ya)管(guan)路(lu)上。該(gai)傳(chuan)感器(qi)向(xiang)發(fa)動(dong)(dong)機(ji)ECM或(huo)空調(diao)(diao)控(kong)制(zhi)(zhi)單元輸出壓(ya)(ya)(ya)力(li)(li)信號(hao),當檢(jian)測到(dao)(dao)空調(diao)(diao)制(zhi)(zhi)冷(leng)(leng)(leng)管(guan)路(lu)壓(ya)(ya)(ya)力(li)(li)過低(di)(di)或(huo)過高(gao)時(shi),控(kong)制(zhi)(zhi)系(xi)(xi)統(tong)停止對空調(diao)(diao)壓(ya)(ya)(ya)縮(suo)機(ji)離合器(qi)供(gong)電,壓(ya)(ya)(ya)縮(suo)機(ji)停止運轉,以(yi)免(mian)對空調(diao)(diao)系(xi)(xi)統(tong)造成(cheng)損壞(huai)。當制(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)壓(ya)(ya)(ya)力(li)(li)達到(dao)(dao)一中等壓(ya)(ya)(ya)力(li)(li)值時(shi),散(san)熱(re)器(qi)風扇高(gao)速(su)運轉,降低(di)(di)空調(diao)(diao)制(zhi)(zhi)冷(leng)(leng)(leng)劑(ji)壓(ya)(ya)(ya)力(li)(li)。
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