空調(diao)壓力(li)傳感(gan)(gan)器壓力(li)傳感(gan)(gan)器是一(yi)種能將檢(jian)測(ce)到的壓力(li)信號(hao)轉換成電(dian)子(zi)信號(hao),由電(dian)腦板芯片進行微(wei)處理,根據壓力(li)檢(jian)測(ce)的結(jie)果對空調(diao)機的零部件進行精細的控制。
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)調(diao)(diao)壓(ya)(ya)力傳感(gan)器(qi)(qi)(qi)是(shi)自動空(kong)(kong)調(diao)(diao)控制(zhi)系(xi)統(tong)(tong)的一(yi)個傳感(gan)器(qi)(qi)(qi)元件,其作用是(shi)防止制(zhi)冷系(xi)統(tong)(tong)在極限(xian)制(zhi)冷劑管路(lu)(lu)壓(ya)(ya)力下(xia)工作,并(bing)幫(bang)助(zhu)控制(zhi)發動機(ji)冷卻風(feng)扇的轉(zhuan)速。 壓(ya)(ya)力傳感(gan)器(qi)(qi)(qi)安裝(zhuang)在發動機(ji)艙內空(kong)(kong)調(diao)(diao)高壓(ya)(ya)管路(lu)(lu)上。該(gai)傳感(gan)器(qi)(qi)(qi)向(xiang)發動機(ji)ECM或空(kong)(kong)調(diao)(diao)控制(zhi)單元輸(shu)出壓(ya)(ya)力信號(hao),當(dang)檢測到(dao)(dao)空(kong)(kong)調(diao)(diao)制(zhi)冷管路(lu)(lu)壓(ya)(ya)力過低或過高時,控制(zhi)系(xi)統(tong)(tong)停(ting)止對空(kong)(kong)調(diao)(diao)壓(ya)(ya)縮機(ji)離合器(qi)(qi)(qi)供電(dian),壓(ya)(ya)縮機(ji)停(ting)止運轉(zhuan),以免對空(kong)(kong)調(diao)(diao)系(xi)統(tong)(tong)造成損壞(huai)。當(dang)制(zhi)冷劑壓(ya)(ya)力達到(dao)(dao)一(yi)中等壓(ya)(ya)力值時,散熱器(qi)(qi)(qi)風(feng)扇高速運轉(zhuan),降低空(kong)(kong)調(diao)(diao)制(zhi)冷劑壓(ya)(ya)力。
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