力士樂壓力繼電器 HED8OP-2X/50K14V

壓(ya)(ya)(ya)力(li)繼電器(qi)(qi)是液(ye)壓(ya)(ya)(ya)系統中當流體壓(ya)(ya)(ya)力(li)達到預定(ding)值時(shi)，使電接點(dian)動作的(de)元件。壓(ya)(ya)(ya)力(li)繼電器(qi)(qi)也可定(ding)義為將壓(ya)(ya)(ya)力(li)轉換成電信(xin)號的(de)液(ye)壓(ya)(ya)(ya)元器(qi)(qi)件，客戶(hu)根據自身(shen)的(de)壓(ya)(ya)(ya)力(li)設計需要(yao)，通過(guo)調節壓(ya)(ya)(ya)力(li)繼電器(qi)(qi)，實現在某一設定(ding)的(de)壓(ya)(ya)(ya)力(li)時(shi)，輸(shu)出一個電信(xin)號的(de)功能。

壓(ya)(ya)力繼(ji)電(dian)(dian)器是由(you)電(dian)(dian)信號控制的(de)電(dian)(dian)路開(kai)關。當(dang)壓(ya)(ya)縮(suo)機的(de)排氣壓(ya)(ya)力超過(guo)(guo)調(diao)定值(zhi)或吸氣壓(ya)(ya)力低(di)(di)(di)于調(diao)定值(zhi)時，它能切(qie)(qie)斷電(dian)(dian)路，保護制冷(leng)(leng)機安全運行。在小(xiao)型(xing)制冷(leng)(leng)裝置中，一(yi)般使用(yong)高、低(di)(di)(di)壓(ya)(ya)為(wei)一(yi)體的(de)壓(ya)(ya)力繼(ji)電(dian)(dian)器，常見(jian)有FP型(xing)壓(ya)(ya)力繼(ji)電(dian)(dian)器。它是由(you)高、低(di)(di)(di)壓(ya)(ya)波紋管、平衡彈簧(huang)、杠桿機構，幅差調(diao)節機構和(he)電(dian)(dian)觸(chu)點等(deng)部分(fen)組成。當(dang)壓(ya)(ya)力變(bian)(bian)化(hua)時，波紋管產生伸縮(suo)變(bian)(bian)形，通過(guo)(guo)杠桿機構推動電(dian)(dian)觸(chu)頭切(qie)(qie)斷或接通電(dian)(dian)路。低(di)(di)(di)壓(ya)(ya)控制元件(jian)的(de)作(zuo)用(yong)是控制制冷(leng)(leng)劑的(de)蒸發壓(ya)(ya)力不(bu)要(yao)過(guo)(guo)低(di)(di)(di)以免制冷(leng)(leng)機在不(bu)必要(yao)的(de)低(di)(di)(di)溫(wen)下工作(zuo)，浪費(fei)電(dian)(dian)能。

壓(ya)(ya)(ya)(ya)力繼電(dian)(dian)器(qi)上(shang)的(de)(de)低(di)壓(ya)(ya)(ya)(ya)毛細管(guan)(guan)和(he)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)的(de)(de)吸氣(qi)管(guan)(guan)連接在(zai)一起·當蒸(zheng)發(fa)壓(ya)(ya)(ya)(ya)力低(di)于調定(ding)值時，低(di)壓(ya)(ya)(ya)(ya)波(bo)(bo)紋管(guan)(guan)2由(you)于彈(dan)簧(huang)3的(de)(de)作用而(er)伸張，使(shi)(shi)低(di)壓(ya)(ya)(ya)(ya)頂針4退進波(bo)(bo)紋管(guan)(guan)中；低(di)壓(ya)(ya)(ya)(ya)杠(gang)桿5由(you)于彈(dan)簧(huang)6的(de)(de)作用而(er)按送時針方向轉動。當與杠(gang)桿連接的(de)(de)觸頭(tou)(tou)板7向上(shang)運動時使(shi)(shi)觸頭(tou)(tou)19跳開，電(dian)(dian)路(lu)被切(qie)斷i·壓(ya)(ya)(ya)(ya)縮(suo)機(ji)停止工作；當蒸(zheng)發(fa)器(qi)內(nei)的(de)(de)壓(ya)(ya)(ya)(ya)力逐步上(shang)升至二定(ding)值時i；低(di)壓(ya)(ya)(ya)(ya)波(bo)(bo)紋管(guan)(guan)被壓(ya)(ya)(ya)(ya)縮(suo)；頂針由(you)波(bo)(bo)紋管(guan)(guan)中伸·出，使(shi)(shi)整(zheng)個(ge)杠(gang)桿按順時針方向轉動，并(bing)使(shi)(shi)觸頭(tou)(tou)板下落到觸頭(tou)(tou)19上(shang)，接通電(dian)(dian)路(lu)，壓(ya)(ya)(ya)(ya)縮(suo)機(ji)重新(xin)運轉。

高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)控制元件的作用與(yu)低(di)壓(ya)(ya)(ya)(ya)(ya)(ya)相同(tong)，：只(zhi)是控制冷(leng)凝(ning)(ning)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)不(bu)(bu)(bu)使過高(gao)，以免造成事(shi)故。高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)接管(guan)9和壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)機排(pai)氣(qi)管(guan)連(lian)接。當(dang)(dang)排(pai)氣(qi)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)高(gao)于(yu)調定值(zhi)(zhi)時，高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)波紋管(guan)10被(bei)壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)，高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)頂針(zhen)12推(tui)動(dong)杠(gang)桿13運動(dong)，使高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)斷路(lu)開(kai)關14上翹，頂開(kai)觸(chu)頭板，使電(dian)路(lu)切斷、壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)機停止(zhi)工作。隨著制冷(leng)劑(ji)蒸汽(qi)在冷(leng)凝(ning)(ning)器中不(bu)(bu)(bu)斷被(bei)冷(leng)凝(ning)(ning)，使排(pai)氣(qi)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)不(bu)(bu)(bu)斷下，當(dang)(dang)降至一定值(zhi)(zhi)時，高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)頂針(zhen)和杠(gang)桿朝(chao)相反方向(xiang)運動(dong)，使觸(chu)頭板和觸(chu)頭接通(tong)，壓(ya)(ya)(ya)(ya)(ya)(ya)縮(suo)(suo)機恢復運轉(zhuan)。

壓(ya)力繼電器的(de)調整方法：

（1）低壓的(de)(de)調整(zheng)(zheng)。根據需要的(de)(de)蒸發溫度(du)對應的(de)(de)壓力值調節低壓調整(zheng)(zheng)螺(luo)釘T：當需要較高的(de)(de)蒸發溫度(du)時(shi)，可用(yong)螺(luo)絲(si)刀逆時(shi)針方向(xiang)旋轉低壓調整(zheng)(zheng)螺(luo)釘T；若需要較低的(de)(de)蒸發溫度(du)時(shi)，可順(shun)時(shi)針方向(xiang)旋轉調整(zheng)(zheng)螺(luo)釘T。

（2）高壓的(de)調整。為保證(zheng)制(zhi)冷(leng)(leng)(leng)裝置(zhi)運行的(de)安全，壓力繼電器大多數用(yong)子水(shui)冷(leng)(leng)(leng)式冷(leng)(leng)(leng)凝器的(de)制(zhi)冷(leng)(leng)(leng)機(ji)中，其作用(yong)主(zhu)要是(shi)防止冷(leng)(leng)(leng)卻水(shui)中斷，或(huo)冷(leng)(leng)(leng)卻水(shui)流(liu)量不(bu)足時(shi)(shi)引起的(de)冷(leng)(leng)(leng)凝壓力突然(ran)快(kuai)速升高，導致嚴重事(shi)故。高壓值一般調定在1Q～11公斤／厘米z表r-匝，，31（用(yong)氟利(li)昂12制(zhi)冷(leng)(leng)(leng)劑）。調整時(shi)(shi)用(yong)螺(luo)絲刀將高壓調整螺(luo)釘M順(shun)時(shi)(shi)針(zhen)方向(xiang)旋轉(zhuan)(zhuan)，壓力值升高，逆時(shi)(shi)針(zhen)旋轉(zhuan)(zhuan)則壓力值降低。

壓(ya)力繼電(dian)器使(shi)用注(zhu)意事項

（1）根(gen)據具體用途和系統壓(ya)力(li)選(xuan)用適當結構形式的壓(ya)力(li)繼(ji)電器(qi)，為了(le)保證(zheng)壓(ya)力(li)繼(ji)電器(qi)動作靈敏，避(bi)免(mian)低(di)壓(ya)系統選(xuan)用高(gao)壓(ya)壓(ya)力(li)繼(ji)電器(qi)。

（2）應(ying)按照制(zhi)造(zao)廠的(de)要求，正確安裝壓力(li)繼電器(qi)。

（3）按(an)照所要(yao)求的電源形式和具體要(yao)求對壓力繼(ji)電器中的微動開關(guan)進行接線(xian)。

（4）壓(ya)力繼電器調整完畢(bi)后(hou)，應鎖定(ding)或固(gu)定(ding)其位置．以免受振動(dong)后(hou)變動(dong)。

（5）壓力繼電器的泄油腔應直接接回油箱，否則會使泄油口背壓過高，影響其靈敏度。

力士樂壓力繼電器 HED8OP-2X/50K14V

R901110164 HED8OA-2X/50K14AV 

R901110166 HED8OA-2X/50K14ASV 

R901110443 HED8OA-2X/50K14AS/12 

R901110447 HED8OA-2X/350K14V/12 

R901110450 HED8OA-2X/350K14KWV 

R901110456 HED8OA-2X/200K14V 

R961000653 HED8.-1X/.XN./FKM 

R961000750 HED1OA/KA-4X/ 

R961000751 HED1OA/KA-4X/V 

R961000752 HED2/3OA2X/3X/ 

R961000754 HED5OA/OK/OP.-2X/ 

R961000755 HED5OA/OK/OP.-2X/V 

R961000756 HED8OA/OH/OP1X/ 

R961000757 HED8OA/OH/OP1X/V 

R961001292 HED4O.-15/16/100/350 

R901121761 HED8.-2X/XN.-EU 

R901122124 HED8OP-2X/350K14KWV 

R901122137 HED8OP-2X/350XNZ14KS 

R901123283 HED8OA-2X/100P040K14S 

R901124650 HED8OP-2X/630K14KS 

R901125068 HED8OH-2X/100K35KS 

R901125561 HED8OA-2X/350K35 

R901125810 HED8OH-2X/200K14KWV 

H-4WEH25HE6X/6EW230N9S2K4/B10D3  

R901125810 HED8OH-2X/200K14KWV 

R901126082 HED8OP-2X/350K14AV  

R901126233 HED8OA-2X/350XNZ14S 

R901126235 HED8OA-2X/50XNZ14 

R901126696 HED8OA-2X/100K35KS 

R901126944 HED8OP-2X/100XNZ14KS 

R901127461 HED8OA-2X/100K35S 

R901127471 HED8OA-2X/350K35A 

R901127474 HED8OA-2X/350K35S 

R901127477 HED8OA-2X/350K35AS 

R901127492 HED8OP-2X/100K35S 

R901127494 HED8OP-2X/350K35S 

R900499680 HED2OA2X/100KL24 

R900455372 HED2OA2X/400/12 

R900455943 HED2OA2X/100/12 

R900456417 HED5OP1-2X/210K14 

R900456950 HED2OA2X/200KL24 

R900457065 HED3OA3X/100L220 

R900457574 HED2OA2X/63L24 

R900459942 HED3OA3X/25L24Q 

R900461584 HED3OA3X/100KL24Q 

R900461658 HED2OA2X/63L220 

R900463490 HED1KA4X/100 SO5 

R900463858 HED1OA4X/350J 

R900464646 HED2OA3X/400 SO1 

R900465539 HED1OA4X/350KL24V 

R900466267 HED3OA3X/400KL24 

R900466268 HED3OA3X/100KL24 

R900466604 HED3OA3X/200KQ SO1 

R900468190 HED1OA4X/350/12 

R900471570 HED1OA4X/350L220V  

R900473318 HED3OA3X/25L24 

R900475388 HED3OA3X/400KL24Q 

R900475715 HED10KA4X/350L24 

R900478094 HED2OA2X/25KL22 

R900478297 HED3OA3X/400L110 

R900479859 HED2OA2X/25L110  

R900481075 HED1OA4X/100/12 

R900499680 HED2OA2X/100KL24 

電磁繼電器的選用

　　了解必要的條件

　　①控制電(dian)路的電(dian)源電(dian)壓，能(neng)提供的最大電(dian)流；

　　②被(bei)控(kong)制電(dian)路中的(de)電(dian)壓(ya)和(he)電(dian)流(liu)；

    　③被(bei)控(kong)電(dian)(dian)路(lu)(lu)需(xu)要幾組、什么形式(shi)的(de)觸點。選用(yong)繼電(dian)(dian)器時，一般控(kong)制電(dian)(dian)路(lu)(lu)的(de)電(dian)(dian)源電(dian)(dian)壓可作為選用(yong)的(de)依據。控(kong)制電(dian)(dian)路(lu)(lu)應能給繼電(dian)(dian)器提(ti)供足夠(gou)的(de)工作電(dian)(dian)流，否則(ze)繼電(dian)(dian)器吸合(he)是(shi)不穩定的(de)。

　　查閱資料

　　查(cha)閱有(you)關(guan)資料(liao)確定使(shi)用條(tiao)件后，可(ke)(ke)查(cha)找相關(guan)資料(liao)，找出需要(yao)的(de)繼電(dian)器(qi)的(de)型號(hao)和規格號(hao)。若手頭已有(you)繼電(dian)器(qi)，可(ke)(ke)依據資料(liao)核對是(shi)否可(ke)(ke)以利用。最后考慮尺(chi)寸是(shi)否合(he)適(shi)。

　　注意器具的容積

　　若是(shi)用(yong)(yong)于一般(ban)用(yong)(yong)電(dian)器(qi)(qi)，除考慮(lv)機箱容積(ji)外，小(xiao)型繼電(dian)器(qi)(qi)主要考慮(lv)電(dian)路(lu)板安裝布局。對于小(xiao)型電(dian)器(qi)(qi)，如玩具、遙控裝置則應選用(yong)(yong)超小(xiao)型繼電(dian)器(qi)(qi)產品(pin)。

　電(dian)磁繼電(dian)器技術參數

　　額定工作電壓

　　是指繼(ji)電(dian)(dian)器正常工作時(shi)線圈所需要(yao)的(de)電(dian)(dian)壓(ya)。根據繼(ji)電(dian)(dian)器的(de)型號不同，可以是交流電(dian)(dian)壓(ya)，也可以是直流電(dian)(dian)壓(ya)。

　　直流電阻

　　是指繼電器中線圈的(de)直流(liu)電阻，可以通過萬用表測量。

　　吸合電流

　　是指(zhi)繼(ji)電(dian)(dian)器能夠(gou)產生(sheng)吸(xi)合(he)動作(zuo)的(de)最小電(dian)(dian)流(liu)。在正常使(shi)用時，給定的(de)電(dian)(dian)流(liu)必(bi)須略大于吸(xi)合(he)電(dian)(dian)流(liu)，這樣繼(ji)電(dian)(dian)器才能穩定地(di)工作(zuo)。而對于線圈(quan)所(suo)加的(de)工作(zuo)電(dian)(dian)壓(ya)，一般不要超(chao)過額定工作(zuo)電(dian)(dian)壓(ya)的(de)1.5倍(bei)，否則會產生(sheng)較大的(de)電(dian)(dian)流(liu)而把線圈(quan)燒毀(hui)。

　　釋放電流

　　是指繼(ji)電(dian)(dian)器(qi)產生釋放動作的(de)最大電(dian)(dian)流(liu)。當繼(ji)電(dian)(dian)器(qi)吸合狀態的(de)電(dian)(dian)流(liu)減小(xiao)到一定程度時(shi)，繼(ji)電(dian)(dian)器(qi)就會恢(hui)復到未通(tong)電(dian)(dian)的(de)釋放狀態。這時(shi)的(de)電(dian)(dian)流(liu)遠遠小(xiao)于吸合電(dian)(dian)流(liu)。

　　觸(chu)點切換電壓和(he)電流

　　是(shi)指(zhi)繼(ji)電(dian)器(qi)允(yun)許(xu)加載(zai)的電(dian)壓和電(dian)流(liu)。它(ta)決(jue)定了(le)繼(ji)電(dian)器(qi)能控(kong)制電(dian)壓和電(dian)流(liu)的大(da)小，使用時不能超過此值，否則很容易損壞繼(ji)電(dian)器(qi)的觸點。

電磁繼電器應用

　　電(dian)(dian)(dian)(dian)磁(ci)繼電(dian)(dian)(dian)(dian)器是(shi)(shi)電(dian)(dian)(dian)(dian)鈴、電(dian)(dian)(dian)(dian)話(hua)和自動控制(zhi)電(dian)(dian)(dian)(dian)路裝置中的重(zhong)要部件(jian)，其實質(zhi)是(shi)(shi)由(you)電(dian)(dian)(dian)(dian)磁(ci)鐵(tie)控制(zhi)的開關，在電(dian)(dian)(dian)(dian)路中起(qi)著類似于開關的作用：（1）用低電(dian)(dian)(dian)(dian)壓(ya)、弱電(dian)(dian)(dian)(dian)流控制(zhi)高電(dian)(dian)(dian)(dian)壓(ya)、強電(dian)(dian)(dian)(dian)流;（2）實現遠距(ju)離操(cao)縱(zong)和自動控制(zhi)。

　　利用(yong)電(dian)(dian)磁繼電(dian)(dian)器可以用(yong)低電(dian)(dian)壓、弱電(dian)(dian)流(liu)(liu)的(de)控(kong)制電(dian)(dian)路來控(kong)制高(gao)電(dian)(dian)壓、強電(dian)(dian)流(liu)(liu)的(de)工作(zuo)電(dian)(dian)路，并且(qie)能(neng)實現遙控(kong)和(he)生產(chan)自(zi)動化。電(dian)(dian)磁繼電(dian)(dian)器被廣泛地應用(yong)于自(zi)動控(kong)制（如冰箱、汽(qi)車、電(dian)(dian)梯、機床里的(de)控(kong)制電(dian)(dian)路）和(he)通(tong)信領域。