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空(kong)調(diao)壓力傳感器壓力傳感器是一(yi)種能將(jiang)檢(jian)(jian)測到的壓力信號轉換成(cheng)電(dian)子信號,由電(dian)腦板(ban)芯片進(jin)行微處理,根據壓力檢(jian)(jian)測的結果對(dui)空(kong)調(diao)機的零部件(jian)進(jin)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。空調(diao)壓(ya)(ya)力(li)傳(chuan)感(gan)器是(shi)自(zi)動(dong)空調(diao)控(kong)制(zhi)(zhi)系統(tong)(tong)的一(yi)個傳(chuan)感(gan)器元件,其作用是(shi)防止(zhi)(zhi)制(zhi)(zhi)冷系統(tong)(tong)在極限(xian)制(zhi)(zhi)冷劑管(guan)路(lu)(lu)壓(ya)(ya)力(li)下(xia)工作,并幫助控(kong)制(zhi)(zhi)發動(dong)機(ji)冷卻風扇的轉(zhuan)速(su)。 壓(ya)(ya)力(li)傳(chuan)感(gan)器安(an)裝在發動(dong)機(ji)艙內空調(diao)高壓(ya)(ya)管(guan)路(lu)(lu)上。該(gai)傳(chuan)感(gan)器向(xiang)發動(dong)機(ji)ECM或空調(diao)控(kong)制(zhi)(zhi)單元輸出(chu)壓(ya)(ya)力(li)信號,當(dang)檢測到空調(diao)制(zhi)(zhi)冷管(guan)路(lu)(lu)壓(ya)(ya)力(li)過低或過高時(shi),控(kong)制(zhi)(zhi)系統(tong)(tong)停(ting)止(zhi)(zhi)對(dui)空調(diao)壓(ya)(ya)縮(suo)(suo)機(ji)離(li)合器供電,壓(ya)(ya)縮(suo)(suo)機(ji)停(ting)止(zhi)(zhi)運(yun)轉(zhuan),以免對(dui)空調(diao)系統(tong)(tong)造成(cheng)損壞。當(dang)制(zhi)(zhi)冷劑壓(ya)(ya)力(li)達到一(yi)中等壓(ya)(ya)力(li)值時(shi),散熱器風扇高速(su)運(yun)轉(zhuan),降低空調(diao)制(zhi)(zhi)冷劑壓(ya)(ya)力(li)。
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