Monga gawo lofunikira la magawo osagwira ntchito, zolumikizira za RF coaxial zili ndi mawonekedwe abwino otumizira ma burodibandi komanso njira zingapo zolumikizirana, motero zimagwiritsidwa ntchito kwambiri pazida zoyesera, zida zankhondo, zida zoyankhulirana ndi zinthu zina.Popeza kugwiritsa ntchito zolumikizira za RF coaxial zalowa pafupifupi magawo onse azachuma chadziko, kudalirika kwake kwakopa chidwi kwambiri.Mitundu yolephera ya zolumikizira za RF coaxial zimawunikidwa.
Pambuyo polumikizana ndi mtundu wa N-mtundu wolumikizira, malo olumikizirana (ndege yamagetsi ndi makina) ya woyendetsa wakunja wa cholumikizira amamizidwa wina ndi mnzake ndi kupsinjika kwa ulusi, kuti akwaniritse kukana pang'ono (< 5m Ω).Gawo la pini la kondakitala mu pini limalowetsedwa mu dzenje la kondakita mu socket, ndipo kukhudzana kwabwino kwa magetsi (kukana kukhudzana <3m Ω) kumasungidwa pakati pa ma conductor awiri amkati pakamwa pa kondakitala mu socket kudzera pa elasticity ya socket wall.Panthawiyi, sitepe pamwamba pa kondakitala mu pini ndi mapeto nkhope ya kondakitala mu zitsulo si mwamphamvu mbamuikha, koma pali kusiyana <0.1mm, amene zimakhudza kwambiri ntchito magetsi ndi kudalirika kwa cholumikizira coaxial.Malo abwino olumikizirana amtundu wa N-mtundu wolumikizira atha kufotokozedwa mwachidule motere: kulumikizana kwabwino kwa woyendetsa akunja, kulumikizana kwabwino kwa woyendetsa wamkati, kuthandizira kwabwino kwa dielectric kwa woyendetsa wamkati, komanso kufalikira kolondola kwa kukangana kwa ulusi.Pamene kugwirizana pamwamba chikhalidwe kusintha, cholumikizira adzalephera.Tiyeni tiyambe ndi mfundo izi ndikusanthula mfundo yolephera ya cholumikizira kuti tipeze njira yolondola yopititsira patsogolo kudalirika kwa cholumikizira.
1. Kulephera chifukwa cha kusalumikizana bwino kwa kondakitala wakunja
Pofuna kuonetsetsa kuti magetsi ndi makina azipitirizabe, mphamvu pakati pa malo okhudzana ndi ma conductor akunja nthawi zambiri zimakhala zazikulu.Tengani cholumikizira chamtundu wa N mwachitsanzo, pomwe cholumikizira cholimba cha Mt cha screw sleeve ndi 135N.masentimita, chilinganizo Mt=KP0 × 10-3N.m (K ndiye kulimbitsa torque coefficient, ndi K = 0.12 apa), axial pressure P0 wa kondakitala wakunja akhoza kuwerengedwa kukhala 712N.Ngati mphamvu ya kondakitala akunja ndi osauka, zingachititse kuvala kwambiri kulumikiza mapeto kondakitala akunja, ngakhale kupindika ndi kugwa.Mwachitsanzo, makulidwe a khoma la cholumikizira chakumapeto kwa cholumikizira chakunja kwa cholumikizira cha SMA ndi chocheperako, 0.25mm yokha, ndipo zinthu zomwe zimagwiritsidwa ntchito nthawi zambiri zimakhala zamkuwa, zokhala ndi mphamvu zofooka, ndipo torque yolumikizira ndi yayikulu pang'ono. , kotero kuti kulumikiza kumapeto kwa nkhope kungakhale kopunduka chifukwa cha extrusion yambiri, yomwe ingawononge woyendetsa mkati kapena chithandizo cha dielectric;Kuphatikiza apo, pamwamba pa kondakitala wakunja wa cholumikizira nthawi zambiri wokutidwa, ndipo kuyanika kwa nkhope yolumikizira kumawonongeka ndi mphamvu yayikulu yolumikizirana, zomwe zimabweretsa kuwonjezeka kwa kukana kukhudzana pakati pa owongolera akunja ndi kuchepa kwa magetsi. ntchito ya cholumikizira.Kuphatikiza apo, ngati cholumikizira cha RF coaxial chikugwiritsidwa ntchito m'malo ovuta, pakapita nthawi, fumbi losanjikiza limayikidwa pankhope yolumikizira ya woyendetsa wakunja.Fumbi ili la fumbi limapangitsa kuti kusagwirizana pakati pa oyendetsa akunja kuchuluke kwambiri, kutayika kwa cholumikizira kumawonjezeka, ndipo chiwerengero cha magetsi chimachepa.
Njira zowonjezera: kupewa kukhudzana koyipa kwa woyendetsa wakunja chifukwa cha kupindika kapena kuvala kopitilira muyeso kwa nkhope yolumikizira, kumbali imodzi, titha kusankha zida zokhala ndi mphamvu zapamwamba kuti tigwiritse ntchito woyendetsa wakunja, monga mkuwa kapena chitsulo chosapanga dzimbiri;Komano, makulidwe a khoma la nkhope yolumikizira ya woyendetsa akunja nawonso atha kuonjezeredwa kuti awonjezere malo olumikizana, kotero kuti kupanikizika kwa gawo la gawo lolumikizirana ndi kokondakita wakunja kudzachepetsedwa pomwe chimodzimodzi. torque yolumikizira imayikidwa.Mwachitsanzo, cholumikizira chowongolera cha SMA coaxial (SuperSMA ya SOUTHWEST Company ku United States), makulidwe akunja athandizo lake lapakati ndi Φ 4.1mm kuchepetsedwa kufika Φ 3.9mm, makulidwe a khoma la cholumikizira chakunja kwa kondakitala akuchulukira motere. mpaka 0.35mm, ndipo mphamvu zamakina zimasinthidwa, motero zimakulitsa kudalirika kwa kulumikizana.Mukasunga ndi kugwiritsa ntchito cholumikizira, sungani mbali yolumikizira ya kokitala yakunja yaukhondo.Ngati pali fumbi pa izo, pukutani ndi mowa thonje mpira.Tikumbukenso kuti mowa sayenera zilowerere pa TV thandizo pa scrubbing, ndipo cholumikizira sayenera kugwiritsidwa ntchito mpaka mowa volatilized, apo ayi impedance wa cholumikizira adzasintha chifukwa cha kusakaniza mowa.
2. Kulephera komwe kumachitika chifukwa cha kusalumikizana bwino kwa wokonda mkati
Poyerekeza ndi kondakitala wakunja, woyendetsa wamkati wokhala ndi kukula kochepa komanso mphamvu zochepa amatha kuyambitsa kukhudzana koyipa ndikupangitsa kulephera kwa cholumikizira.Kulumikizana kowala nthawi zambiri kumagwiritsidwa ntchito pakati pa ma conductor amkati, monga socket slotted zotanuka kugwirizana, kasupe claw zotanuka kugwirizana, mvukuto zotanuka kugwirizana, etc. Pakati pawo, zitsulo-kagawo zotanuka kugwirizana ali ndi dongosolo losavuta, mtengo wotsika processing, msonkhano yabwino ndi ntchito widest. osiyanasiyana.
Miyezo yowongola: Titha kugwiritsa ntchito mphamvu yoyikapo ndi mphamvu yosungira ya pini ya geji yoyezera ndi kondakitala mu soketi kuti tiyeze ngati kufananitsa pakati pa soketi ndi pini kuli koyenera.Kwa zolumikizira zamtundu wa N, m'mimba mwake Φ 1.6760+0.005 Mphamvu yoyikapo pini ya geji yofananira ikugwirizana ndi jack iyenera kukhala ≤ 9N, pomwe m'mimba mwake Φ 1.6000-0.005 pini yoyezera yokhazikika ndi kondakitala mu soketi azikhala ndi mphamvu yosungira ≥ 0.56N.Chifukwa chake, titha kutenga mphamvu yoyika ndikusunga ngati muyezo wowunikira.Mwa kusintha kukula ndi kulekerera kwa socket ndi pini, komanso njira yochiritsira yokalamba ya kondakitala muzitsulo, mphamvu yoyikapo ndi kusungirako mphamvu pakati pa pini ndi zitsulo zili mumtundu woyenera.
3. Kulephera chifukwa cha kulephera kwa chithandizo cha dielectric kuthandizira woyendetsa mkati bwino
Monga gawo lofunikira la cholumikizira cha coaxial, chithandizo cha dielectric chimagwira ntchito yofunika kwambiri pothandizira woyendetsa wamkati ndikuwonetsetsa ubale wapakatikati pakati pa okonda amkati ndi akunja.Mphamvu zamakina, kuchuluka kwa matenthedwe kowonjezera, dielectric pafupipafupi, kutayika kwamadzi, kuyamwa kwamadzi ndi mawonekedwe ena azinthuzo zimakhudza kwambiri magwiridwe antchito a cholumikizira.Mphamvu zokwanira zamakina ndizofunikira kwambiri pakuthandizira kwa dielectric.Pogwiritsa ntchito cholumikizira, chithandizo cha dielectric chiyenera kunyamula kuthamanga kwa axial kuchokera kwa woyendetsa wamkati.Ngati mphamvu yamakina ya chithandizo cha dielectric ndi yotsika kwambiri, imayambitsa mapindikidwe kapena kuwonongeka panthawi yolumikizana;Ngati coefficient yowonjezera kutentha kwa zinthuzo ndi yaikulu kwambiri, kutentha kukakhala kotentha kwambiri, chithandizo cha dielectric chikhoza kuwonjezeka kapena kuchepa kwambiri, kuchititsa kuti woyendetsa wamkati asungunuke, agwe, kapena akhale ndi olamulira wosiyana ndi woyendetsa wakunja, komanso kuchititsa kukula kwa doko lolumikizira kuti lisinthe.Komabe, kuyamwa kwamadzi, kukhazikika kwa dielectric ndi kutayika kumakhudza magwiridwe antchito amagetsi a zolumikizira monga kutayika kwa kuyika ndi kuwunikira kokwanira.
Njira zowongolera: sankhani zida zoyenera kuti mugwiritse ntchito chithandizo chapakatikati molingana ndi mawonekedwe azinthu zophatikizira monga malo ogwiritsira ntchito komanso kuchuluka kwa ma frequency olumikizirana.
4. Kulephera kobwera chifukwa cha kukanikizana kwa ulusi komwe sikunapatsidwe kwa kondakitala wakunja
Njira yodziwika bwino ya kulephera kumeneku ndi kugwa kwa mkono wa screw, womwe umayamba makamaka chifukwa cha kapangidwe kopanda nzeru kapena kukonza kamangidwe ka screw sleeve komanso kusasunthika koyipa kwa mpheteyo.
4.1 Kupanga kopanda nzeru kapena kukonza kamangidwe ka manja
4.1.1 Kapangidwe kake kapena kukonza kwa groove ya screw sleeve snap ring groove ndizosamveka.
(1) Mtsinje wa snap ring groove ndi wozama kwambiri kapena wozama kwambiri;
(2) Ngodya yosadziwika bwino pansi pa poyambira;
(3) Chimphepo ndi chachikulu kwambiri.
4.1.2 Kukhuthala kwa khoma la axial kapena radial kwa screw sleeve snap ring groove ndikowonda kwambiri
4.2 Kusakhazikika bwino kwa mphete ya snap
4.2.1 Mapangidwe a radial makulidwe a snap ring ndi osamveka
4.2.2 Kulimbitsa kukalamba kosayenerera kwa snap ring
4.2.3 Kusankhidwa kolakwika kwa zinthu za snap ring
4.2.4 Chamfer yakunja ya snap ring ndi yayikulu kwambiri.Fomu yolephera iyi yafotokozedwa m'nkhani zambiri
Kutengera mtundu wa N-coaxial cholumikizira mwachitsanzo, njira zingapo zolephera zolumikizira RF coaxial cholumikizira zomwe zimagwiritsidwa ntchito kwambiri zimawunikidwa.Mitundu yosiyanasiyana yolumikizira idzapangitsanso mitundu yosiyanasiyana yolephera.Pokhapokha pakuwunika mozama njira yofananira yamtundu uliwonse wolephera, ndizotheka kupeza njira yabwinoko yolimbikitsira kudalirika kwake, ndikulimbikitsa chitukuko cha zolumikizira za RF coaxial.
Nthawi yotumiza: Feb-05-2023