空調壓力(li)傳(chuan)感器(qi)壓力(li)傳(chuan)感器(qi)是(shi)一(yi)種能將檢(jian)測到(dao)的壓力(li)信(xin)號(hao)轉換(huan)成電(dian)子信(xin)號(hao),由電(dian)腦(nao)板芯片(pian)進行(xing)微處理(li),根據(ju)壓力(li)檢(jian)測的結果對空調機的零部件進行(xing)精細(xi)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)(diao)壓(ya)(ya)力傳感(gan)器(qi)(qi)(qi)是(shi)自動(dong)空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)控(kong)(kong)制(zhi)(zhi)系統(tong)的(de)一個(ge)傳感(gan)器(qi)(qi)(qi)元(yuan)(yuan)件,其作用(yong)是(shi)防止制(zhi)(zhi)冷系統(tong)在極(ji)限制(zhi)(zhi)冷劑(ji)管路(lu)壓(ya)(ya)力下工作,并幫(bang)助控(kong)(kong)制(zhi)(zhi)發(fa)(fa)動(dong)機(ji)冷卻(que)風扇的(de)轉速。 壓(ya)(ya)力傳感(gan)器(qi)(qi)(qi)安裝在發(fa)(fa)動(dong)機(ji)艙內(nei)空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)高壓(ya)(ya)管路(lu)上。該傳感(gan)器(qi)(qi)(qi)向發(fa)(fa)動(dong)機(ji)ECM或(huo)空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)控(kong)(kong)制(zhi)(zhi)單元(yuan)(yuan)輸出(chu)壓(ya)(ya)力信號,當檢(jian)測到空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)制(zhi)(zhi)冷管路(lu)壓(ya)(ya)力過低(di)或(huo)過高時,控(kong)(kong)制(zhi)(zhi)系統(tong)停(ting)止對空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)壓(ya)(ya)縮(suo)機(ji)離合器(qi)(qi)(qi)供電,壓(ya)(ya)縮(suo)機(ji)停(ting)止運轉,以免對空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)系統(tong)造成損(sun)壞。當制(zhi)(zhi)冷劑(ji)壓(ya)(ya)力達(da)到一中等(deng)壓(ya)(ya)力值(zhi)時,散(san)熱器(qi)(qi)(qi)風扇高速運轉,降(jiang)低(di)空(kong)(kong)(kong)調(diao)(diao)(diao)(diao)制(zhi)(zhi)冷劑(ji)壓(ya)(ya)力。
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