空調(diao)壓力傳感器壓力傳感器是一種(zhong)能將檢測到的壓力信(xin)號轉換成電子(zi)信(xin)號,由電腦板芯片進行微處理(li),根(gen)據壓力檢測的結果對(dui)空調(diao)機的零部(bu)件進行精細的控制。
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)(kong)(kong)調壓(ya)(ya)力(li)(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)是自動空(kong)(kong)(kong)調控(kong)制(zhi)(zhi)(zhi)系統的(de)一個傳(chuan)感(gan)器(qi)(qi)元件,其作用是防止(zhi)制(zhi)(zhi)(zhi)冷(leng)系統在極限制(zhi)(zhi)(zhi)冷(leng)劑(ji)管(guan)(guan)路壓(ya)(ya)力(li)(li)(li)(li)下工作,并幫助控(kong)制(zhi)(zhi)(zhi)發動機(ji)冷(leng)卻風(feng)(feng)扇(shan)(shan)的(de)轉(zhuan)速(su)。 壓(ya)(ya)力(li)(li)(li)(li)傳(chuan)感(gan)器(qi)(qi)安(an)裝在發動機(ji)艙內(nei)空(kong)(kong)(kong)調高(gao)壓(ya)(ya)管(guan)(guan)路上。該傳(chuan)感(gan)器(qi)(qi)向發動機(ji)ECM或空(kong)(kong)(kong)調控(kong)制(zhi)(zhi)(zhi)單(dan)元輸出壓(ya)(ya)力(li)(li)(li)(li)信號,當檢測(ce)到空(kong)(kong)(kong)調制(zhi)(zhi)(zhi)冷(leng)管(guan)(guan)路壓(ya)(ya)力(li)(li)(li)(li)過低或過高(gao)時,控(kong)制(zhi)(zhi)(zhi)系統停(ting)止(zhi)對空(kong)(kong)(kong)調壓(ya)(ya)縮機(ji)離合(he)器(qi)(qi)供電,壓(ya)(ya)縮機(ji)停(ting)止(zhi)運轉(zhuan),以免(mian)對空(kong)(kong)(kong)調系統造成損壞。當制(zhi)(zhi)(zhi)冷(leng)劑(ji)壓(ya)(ya)力(li)(li)(li)(li)達到一中(zhong)等壓(ya)(ya)力(li)(li)(li)(li)值(zhi)時,散(san)熱器(qi)(qi)風(feng)(feng)扇(shan)(shan)高(gao)速(su)運轉(zhuan),降低空(kong)(kong)(kong)調制(zhi)(zhi)(zhi)冷(leng)劑(ji)壓(ya)(ya)力(li)(li)(li)(li)。
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