空調壓力傳感(gan)器壓力傳感(gan)器是一種能將檢測(ce)到的壓力信(xin)號(hao)轉換成電子信(xin)號(hao),由電腦(nao)板芯片進(jin)行微處理,根據(ju)壓力檢測(ce)的結果(guo)對空調機(ji)的零部件進(jin)行精細的控(kong)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)調(diao)(diao)壓(ya)(ya)力(li)傳(chuan)感(gan)器(qi)是(shi)自(zi)動(dong)(dong)空(kong)(kong)調(diao)(diao)控(kong)(kong)制(zhi)(zhi)系統的一(yi)個傳(chuan)感(gan)器(qi)元(yuan)件(jian),其(qi)作用是(shi)防止制(zhi)(zhi)冷(leng)系統在極(ji)限(xian)制(zhi)(zhi)冷(leng)劑管(guan)路(lu)(lu)壓(ya)(ya)力(li)下(xia)工作,并(bing)幫(bang)助控(kong)(kong)制(zhi)(zhi)發(fa)動(dong)(dong)機冷(leng)卻(que)風扇(shan)的轉(zhuan)速。 壓(ya)(ya)力(li)傳(chuan)感(gan)器(qi)安(an)裝在發(fa)動(dong)(dong)機艙內空(kong)(kong)調(diao)(diao)高(gao)壓(ya)(ya)管(guan)路(lu)(lu)上。該傳(chuan)感(gan)器(qi)向發(fa)動(dong)(dong)機ECM或空(kong)(kong)調(diao)(diao)控(kong)(kong)制(zhi)(zhi)單元(yuan)輸(shu)出(chu)壓(ya)(ya)力(li)信(xin)號,當檢測到空(kong)(kong)調(diao)(diao)制(zhi)(zhi)冷(leng)管(guan)路(lu)(lu)壓(ya)(ya)力(li)過(guo)低或過(guo)高(gao)時,控(kong)(kong)制(zhi)(zhi)系統停止對空(kong)(kong)調(diao)(diao)壓(ya)(ya)縮機離合器(qi)供電(dian),壓(ya)(ya)縮機停止運轉(zhuan),以免(mian)對空(kong)(kong)調(diao)(diao)系統造(zao)成損壞。當制(zhi)(zhi)冷(leng)劑壓(ya)(ya)力(li)達到一(yi)中等壓(ya)(ya)力(li)值時,散熱器(qi)風扇(shan)高(gao)速運轉(zhuan),降低空(kong)(kong)調(diao)(diao)制(zhi)(zhi)冷(leng)劑壓(ya)(ya)力(li)。
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