空調壓(ya)力傳感(gan)器壓(ya)力傳感(gan)器是一種能(neng)將檢測(ce)到的(de)壓(ya)力信號轉(zhuan)換成電子信號,由電腦板芯(xin)片進(jin)行微(wei)處理,根據(ju)壓(ya)力檢測(ce)的(de)結果對空調機的(de)零(ling)部件進(jin)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(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)力(li)(li)(li)傳感器(qi)是自動(dong)(dong)(dong)空(kong)(kong)(kong)(kong)調(diao)(diao)控(kong)制(zhi)系統(tong)的一個傳感器(qi)元件,其作用是防止(zhi)制(zhi)冷(leng)(leng)系統(tong)在(zai)極限制(zhi)冷(leng)(leng)劑管路壓(ya)(ya)(ya)力(li)(li)(li)下工作,并(bing)幫助控(kong)制(zhi)發(fa)動(dong)(dong)(dong)機(ji)(ji)冷(leng)(leng)卻(que)風扇(shan)的轉(zhuan)(zhuan)速。 壓(ya)(ya)(ya)力(li)(li)(li)傳感器(qi)安裝在(zai)發(fa)動(dong)(dong)(dong)機(ji)(ji)艙(cang)內空(kong)(kong)(kong)(kong)調(diao)(diao)高壓(ya)(ya)(ya)管路上(shang)。該傳感器(qi)向(xiang)發(fa)動(dong)(dong)(dong)機(ji)(ji)ECM或空(kong)(kong)(kong)(kong)調(diao)(diao)控(kong)制(zhi)單元輸出壓(ya)(ya)(ya)力(li)(li)(li)信(xin)號(hao),當(dang)檢測到空(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)(leng)管路壓(ya)(ya)(ya)力(li)(li)(li)過(guo)低(di)或過(guo)高時(shi),控(kong)制(zhi)系統(tong)停(ting)止(zhi)對空(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)(ya)縮機(ji)(ji)離(li)合器(qi)供電,壓(ya)(ya)(ya)縮機(ji)(ji)停(ting)止(zhi)運轉(zhuan)(zhuan),以免對空(kong)(kong)(kong)(kong)調(diao)(diao)系統(tong)造成(cheng)損壞(huai)。當(dang)制(zhi)冷(leng)(leng)劑壓(ya)(ya)(ya)力(li)(li)(li)達到一中等壓(ya)(ya)(ya)力(li)(li)(li)值時(shi),散熱(re)器(qi)風扇(shan)高速運轉(zhuan)(zhuan),降低(di)空(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)(leng)劑壓(ya)(ya)(ya)力(li)(li)(li)。
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