Ukuklanywa Kokuhlukaniswa Kwe-High Frequency Wand Nekubanga Kwe-Creepage
Kwadalwa ngo 09.04
I-ARTICLE 01 / I-INKUE ENGINEERING & I-OEM INSIGHT |
Umfanekiso 1. Ukwakhiwa Kwe-High Frequency Wand Insulation kanye ne-Creepage Distance Design — i-infographic yobunjiniyela yangempela elungiselelwe lolu chungechunge lwezindatshana.
Ukufakwa kwe-high frequency wand insulation kuyinkinga yokuklama ezingeni lesistimu, ngisho noma umkhiqizo ophelile ubukeka ulula ngokomshini: i-handheld enclosure, i-drive circuit, i-high-voltage transformer kanye ne-detachable glass electrode. Ngaphakathi kwesibambo, nokho, ukuklama kukagesi kunzima ngokungavamile. Umkhiqizo kufanele ukhiqize i-discharge ebonakalayo, ezinzile ku-electrode kuyilapho ugcina ama-electric fields angahlosiwe, izindlela zokuvuza kanye ne-surface arcing kude ne-enclosure efinyeleleka kumsebenzisi.
Uma ikhasimende licela "amandla amaningi," ukusabela kokuqala kobunjiniyela akufanele kube ukukhuphula i-voltage ye-transformer bese kuhlolwa futhi. Ukuphuma okunamandla kushintsha insimu kagesi ezungeze i-transformer, amajoyinti e-solder, isokhethi ye-electrode, izintambo kanye ne-enclosure. Idizayini ebizinzile ezingeni elilodwa lokuphuma ingaqala ukubonisa i-corona, ukulandelela kwendawo, ukukhanga kwe-capacitive endaweni yokuhlala noma ukukhishwa okungapheli ngemva komswakama nokuguga.
Lesi sihloko sichaza umqondo wokuklama i-INKUE ewusebenzisayo lapho ibuyekeza ukwakheka kwe-insulation kumadivayisi amahle afushane anemvamisa ephezulu. Ihloselwe abanikazi bemikhiqizo, abaphathi bemikhiqizo nobunjiniyela abahlela iphrojekthi ye-OEM noma ye-ODM, hhayi njengokufaka esikhundleni sokuhlolwa kokuphepha okuthile komkhiqizo.
INKUE  01 | UKUHLOLWA KOMKHIQIZO Ukuphuma kwe-high frequency beauty device nokusebenza kwe-insulation kufanele kuhlolwe njengohlelo oluphelele, hhayi njengencazelo ye-transformer kuphela. |
INKUE INTERNATIONAL STATION VISUAL
INKUE high frequency beauty device application visual. Source: INKUE International Station artwork supplied by the company.
Ukugudluka, Ukugwema kanye Nokuvikelwa Okuqinile Yizilawuli Ezihlukene
La magama amathathu avame ukusetshenziswa ngokushintshana, kodwa alawula izindlela ezahlukene zokwehluleka.
I-Clearance ibanga elifushane kakhulu emoyeni phakathi kwezingxenye eziqhubayo. Kubalulekile lapho i-voltage ingakwazi ukunqamula igebe lomoya, ikakhulukazi eduze kwezindawo ezicijile, okuphuma kwama-winding, i-solder eveziwe, ama-connector noma umgodi omncane we-enclosure.
Ibanga le-Creepage yindlela emfushane kakhulu ehamba phezu kobuso bento yokugquma. Uthuli, izinsalela ze-flux, amafutha esikhumba, umswakama kanye nokujiya kunganciphisa ukumelana nokugquma futhi kukhuthaze ukulandeleka. Indlela ebonakala inde ku-prototype ehlanzekile ingaba mfushane ngogesi ngemva kokungcoliswa noma ukukhishwa okuphindaphindiwe.
Ukufakwa kwezinto ezingavuthiyo (solid insulation) yinto ebekwa emkhakheni kagesi, njengezindonga zebhobhini le-transformer, ucingo olunamafutha (wire enamel), amashubhu ashintshayo ngokushisa (heat-shrink tubing), amabhuthi e-silicone, izithiyo ezibunjiwe, i-encapsulant noma umkhono wangaphakathi. Ukusebenza kwayo kwangempela akuncikile nje kuphela emandleni kagesi (nominal dielectric strength), kodwa futhi kubukhulu, izikhala, ukunamathela, ukushintsha kwezinga lokushisa, ingcindezi yemishini kanye nokungaguquguquki kokukhiqiza.
Emikhiqizweni emincane ene-voltage ephezulu, lezi zilawuli kufanele zifakwe ngezigaba. Udonga olulodwa oluncane lwepulasitiki akufanele kulindeleke ukuthi luxazulule ukuhlukaniswa kwebanga (clearance), ukukhasa (creepage), ukuvikelwa kwemishini kanye nokuhlukaniswa komsebenzisi ngasikhathi sinye.
Kungani Imiklamo Ye-High Frequency Idinga Okungaphezu Komthetho Olula Webanga
Amatafula okuhlukanisa (insulation tables) awusizo, kodwa umklamo wokugcina awukwazi ukukhethwa eshadini elilodwa le-voltage-to-distance. Izinga elifanele lincike ekuhlukaniseni umkhiqizo, ukusetshenziswa okuhlosiwe, ukwakheka kokunikezwa kukagesi, izinga lokungcola, iqembu lezinto, ukuphakama, isigaba se-overvoltage kanye nokuma kwegagasi.
I-EC 60664-1 inikeza izimiso zokunquma amabanga okuhlukanisa, ukukhasa kanye nenqubo yokuhlola ukuqina kwe-solid insulation emishinini exhunywe kumasistimu okuhambisa ugesi aphansi. Inothi lomkhakha walo ukuthi leli zinga lisebenza kumafrikhwensi afinyelela ku-30 kHz nokuthi amanani amancane ebanga lokuhlukanisa awasebenzi lapho kukhona amagesi ane-ion. Izinti zobuhle ezisebenza ngefrikhwensi ephezulu zingase zidale ngamabomu ukwenziwa kwe-ion eduze kwe-electrode, okuyisizathu esisodwa sokuthi ukubuyekezwa kwaselabhorethri nokuhlolwa okukhethekile komkhiqizo kubalulekile.
Empahleni yasendlini yokunakekela isikhumba, kufanele kucatshangwe izidingo ezijwayelekile ze-IEC 60335-1 kanye nezinga elithile elifanele. Uma umkhiqizo wethulwa ngenjongo yezokwelapha, indlela yokulawula kanye nomndeni wamazinga okuphepha kungashintsha kakhulu.
Umthetho wokuklama: hlukanisa ngaphambi kokukala ubukhulu. Ngaphambi kokulungisa uhlaka lwe-PCB, indawo ye-transformer noma udonga lwe-enclosure, chaza inhloso yokusetshenziswa, izimakethe eziqondisiwe, umthombo wamandla, isigaba sokufakwa kwe-insulation kanye nesethi yamazinga asebenzayo. Ngaphandle kwalokho, ithimba lingase lithuthukise isakhiwo esingahle sihluleke ekuhambeni nokuthobela imithetho kamuva. |
Izindlela Eziyisikhombisa Zokwakha Ezinciphisa Ukukhishwa Okungafuneki
1. Hlukanisa indawo enkulu ye-field endaweni yokubamba
I-transformer yesibili, intambo yamandla aphezulu kanye nesokhethi ye-electrode kufanele zigxilwe endaweni elawulwayo, zihlukaniswe ngokomzimba nendawo yesandla somsebenzisi. Ukwandisa kuphela ubukhulu bodonga ngokuphelele akusebenzi kangako kunokudala umngcele wangaphakathi ngamabomu phakathi kwe-field enkulu nezindawo zokubamba.
Umgodi wangaphakathi ongenisiwe, inkomishi efakelwayo noma igumbi eliphezulu kagesi linganikeza isithiyo sesibili ngaphakathi kwecosmetic housing. Le ndlela futhi inciphisa ithuba lokuthi i-screw boss, ingxenye yensimbi yokuhlobisa, ukhiye wokuthinta noma umthungo ungene endaweni ephezulu kagesi ngesikhathi kushintshwa idizayini yezimboni kamuva.
2. Engeza izimbambo nezindlela ze-labyrinth lapho izindawo ezingenakugwenywa
Izimbambo ezibunjiwe zingakhulisa indlela yomhlaba ngaphandle kokwenza isibambo sibe sikhulu kakhulu. Indawo yazo ibalulekile. Umbambo kufanele uphazamise umzila wokulandela futhi ungakhi umgodi omncane obamba i-flux, uthuli noma umswakama.
Izakhiwo ze-labyrinth ziwusizo kakhulu eduze kwesiphetho se-transformer, isokhethi ye-electrode kanye nokuhlangana kwe-enclosure. Ukushintsha okuyindilinga kungcono kunemiphetho ecijile, engagxilisa amandla kagesi.
3. Lawula wonke amaphuzu acijile aqhubayo kagesi
Izinkambu zikagesi ezinamandla kakhulu zendawo zivame ukuvela ezindaweni ebezingagqamile kumdwebo: umkhonto we-component onqunyiwe, i-solder fillet ecijile, isiphetho se-winding, i-crimp terminal, i-spring contact noma ikhona le-foil.
Imidwebo yobunjiniyela kufanele ichaze ukunqunywa kwemikhonto, iphrofayili ye-solder, ukugqagqana kwe-insulation kanye ne-radius encane yokugoba. Ngesikhathi sokukhiqiza, amazinga abonakalayo kufanele abonise umsebenzi wamandla aphezulu owamukelekile nongamukelekile. I-prototype ephephile eyenziwe uchwepheshe oyedwa onolwazi ayanele; isakhiwo kufanele sibekezelele ukuhluka okujwayelekile kokukhiqiza.
4. Sebenzisa i-encapsulation njengenqubo elawulwayo, hhayi njengokugqoka kokuhlobisa.
Ukufakwa kwe-potting noma ukumboza ngaphezulu kungacindezela i-corona futhi kuvimbe i-high-voltage winding, kodwa kuphela uma izinto zokwakha kanye nenqubo kuklanywe ndawonye. Amabhamuza omoya abhajwe ngaphakathi aba yizindawo zokugxila kwe-field. Ukunamathela kabi kungadala indawo engaphakathi lapho ugesi uhamba khona. I-encapsulant eqine ngokweqile ingacindezela izintambo ezincane ngesikhathi sokushintsha kokushisa.
Izilawuli ezibalulekile zenqubo zihlanganisa ukuxuba izinto, ukufaka nge-vacuum noma ngaphandle kwama-void lapho kufanele, isikhathi sokuqina, izinga lokushisa lokuqina, ukuphakama kokugcwalisa, ukuhlanzeka kwezingxenye kanye nokuhlola ukuthi akukho okungagqitshwayo. Ukupenda okuncane ngomcako akufanele kuthathwe njengokulingana nesistimu yokuvala eqinisekisiwe.
5. Khetha izinto zokugquma ngokuziphatha kukagesi nokwezemvelo
Ukukhethwa kwezinto kufanele kucabangele inkomba yokuqhathanisa yokulandelela, ukumelana ne-arc, ukusha, izinga lokushisa, ukumunca umswakama, ukuhambisana namakhemikhali kanye nekhwalithi yokubunjwa. Inombolo ephezulu yamandla okuhlukanisa ngogesi ayiqinisekisi ukusebenza kahle kokulandelela ebusweni.
Izinto zokubiyela, umgoqo wangaphakathi kanye nezinto ze-transformer zingasebenza imisebenzi ehlukene ngakho zidinga imininingwane ehlukene. Imibala, okuqukethwe okugaywe kabusha, ama-release agents kanye nokuthungwa kwendawo nakho kungathinta ukuphindaphindeka futhi kufanele kugcinwe kumininingwane yezinto evunyiwe.
6. Phatha ukuxhumana kwe-capacitive, hhayi ukudluliswa okuqondile kuphela
Umsebenzisi angazwa sengathi igobolondo "linogesi" noma ngabe akukho ukuphazamiseka okuqondile kokuhlukanisa okwenzekile. Inkambu ye-high-frequency ingaxhumana nge-capacitive ngokusebenzisa i-transformer, izintambo kanye nogobolondo. Umphumela ungaba umuzwa ongakhululekile, ukukhishwa okungazinzile noma ukufundwa okungalindelekile kumshini wokuhlola oyisisekelo.
Lokhu kufanele kuhlaziywe njengenkinga yesekethe kanye nensimu. Ukuhlelwa kwamandla kagesi e-transformer, ukwakheka kwesihlangu, i-parasitic capacitance, indlela yokubuya kokuphuma, i-electrode geometry kanye nesikhala se-enclosure konke kunomthelela kumphumela. Insimbi encanyana exhunywe ngokungahleliwe ku-neutral yamandla kagesi akusona isixazululo esiphephile esijwayelekile. I-neutral iyinsimbi ethwala amandla kagesi futhi ayithathi indawo ye-protective earth. Ekwakhiweni kwe-Class II ephathwa ngesandla, ukwengeza isihlangu esixhunywe ku-neutral kungethula indlela entsha eyingozi futhi kukhubaze umqondo wokuhlukaniswa kukagesi.
Uma kusetshenziswa isihlangu se-electrostatic, ukuxhumana kwaso, ukufakwa kwe-insulation, ukusebenza kwakho uma kwenzeka iphutha, kanye nomthelela wako ku-EMC kufanele kuklanywe ngokucophelela futhi kuhlolwe ngaphansi kwesigaba somkhiqizo esikhethiwe.
7. Yehlisa ingcindezi emthonjeni
Insulation yokwakheka akufanele inxephezele ukuklanywa kukagesi okungalawulwa kahle. Isilinganiso sokuguqula ama-turns ku-transformer, imvamisa yokushayela, umjikelezo womsebenzi, izingxenye ezihambisana ne-resonance, ukulinganiselwa kwamandla kanye ne-output impedance kufanele kuhlelwe ukuze umkhiqizo ufeze ukusebenza kwe-electrode okudingekayo ngaphandle kwengcindezi enkulu ye-open-circuit.
Ukunciphisa okuncane ekucindezelweni kwe-electric-field ephezulu kunganikeza ukuthembeka okwengeziwe kunokwengeza olunye ungqimba oluncane lwetheyiphu ngemva kokuqedwa kokuklama.
INKUE  02 | ONJINIYELA BOCWANINGO NENTUTHUKO Umqondo we-insulation kufanele ubuyekezwe kanye nokuklanywa kwe-transformer, ukuhlelwa kwe-PCB, isokhethi ye-electrode, ukuhlelwa kwe-enclosure kanye nokubekezelela kokukhiqiza. |
Imininingwane Ye-PCB Nezintambo Evame Ukubangela Ukulandela Umkhondo (Tracking)
I-transformer yamandla aphezulu ingase ivikeleke kahle kuyilapho i-PCB ezungezile ingavikelekile. Izindawo ezivamile ezibuthakathaka zihlanganisa:
• isikhala esinganele phakathi kwamaphedi esibili kanye nethusi lamandla aphansi;
• i-solder mask ethathwa njengomgoqo kuphela wokuvikela;
• izinsalela ze-flux ezizungeze izikhonkwane ze-transformer;
• umzila wamandla aphezulu odluliswa eduze kwesikulufu sokufaka noma umugqa we-enclosure;
• ucingo olungavikelekile olunqamula emaphethelweni e-PCB;
• amathusi abukhali noma amaphedi okuhlola ngaphansi kwe-transformer;
• izixhumi ezinamandla okulinganiselwa angaphansi kwe-waveform stress yangempela;
• intambo yamandla aphezulu engakwazi ukunyakaza ngemva kokuhlolwa kokuwa;
• isokhethi ye-electrode evumela isiqu segilasi noma i-contact spring ukuthi ihlale ngokungahambisani.
Ukuhlelwa okuhle kwe-layout kusebenzisa izindawo zokungena, i-geometry yokuqhuba ebushelelezi, ukuhambisa okulawulwayo kanye nokunamathiselwa ngokomzimba. Lapho i-slot isetshenziswa ukukhulisa i-creepage, ubukhulu be-slot kanye nokubekezelela kokubunjwa noma kokuhlanganisa kufanele kufakwe emdwebeni. I-fixture yokuhlola yokukhiqiza nayo kufanele igweme ukushiya izinsalela eziqhubayo noma umonakalo eduze kwendawo yamandla aphezulu.
Ukuqinisekiswa Kufanele Kuphindaphinde Izimo Zangempela Ezimbi Kakhulu
Idivayisi esebenza endaweni eyomile yobunjiniyela ayikakhombisi ukufakwa okuqinile okunamandla. Ukuqinisekiswa kufanele kuhlanganise izinhlanganisela ezifanele zalezi:
1. izimo zokunikezwa amandla eziphezulu neziphansi kakhulu;
2. isilungiselelo esiphakeme kakhulu sokuphumayo kanye nezimo zokulawula ezingavamile;
3. ububanzi obugcwele bokubekezelela kwama-transformer, ama-capacitor nama-electrode;
4. umswakama ophezulu nokungcola okumelela ukusetshenziswa kwabathengi;
5. ukusebenza okuqhubekayo nokuvula/ukuvala okuphindaphindiwe;
6. ukushintshashintsha kokushisa nokuguga kwezinto;
7. ukwehla, ukudlidliza kanye nokucindezela kokufakwa kwe-electrode;
8. ukuhlolwa kokumelana nogesi, ukufinyeleleka kwamanje kanye nokuthintwa kwamanje;
9. imifantu yebhokisi, izingxenye zokuhlobisa kanye nazo zonke izindawo ezithintwayo ngumsebenzisi;
10. ukuhlolwa kwangaphambi kokuthobela i-EMC, ngoba ukugqabhuka kwe-arcing kanye ne-corona kungadala umsindo obanzi.
Ukwehluleka kufanele kutholakale, kuthathwe izithombe futhi kulandelelwe kumshini. "Kudlule ngemuva kokufaka itheyipu" akulona umbiko wembangela eyimpande. Isenzo sokulungisa kufanele sibonakale emidwebeni, emiyalweni yokusebenza, ezindleleni zokuhlola kanye nakumarekhodi okulawula ushintsho.
INKUE  03 | UKUHLOLWA KOKUGUGA Ukuhlolwa kokuguga kusiza ukwembula ukuphambuka kokukhiphayo, ukukhishwa okuphazamayo, ukushisa kanye nobuthakathaka bokufakwa kwesivikelo okungase kungabonakali ngesikhathi sokuhlola okufushane kokusebenza. |
Ukuklanyela Ukukhiqiza Okwenziwa Ngokuphindaphindwayo
Ukuthembeka kwamandla aphezulu kuthonywa kakhulu ukuhluka kwenqubo. Idizayini ezinzile idinga izilawuli ezilinganisekayo, ezihlanganisa:
• imininingwane yokusonga kanye nokufakwa kwe-encapsulation kwe-transformer;
• izinto zokufaka ukugquma ezivunyiweyo nabahlinzeki;
• indlela ecacisiwe yokuhambisa izintambo nokuziqinisa;
• amazinga okushisela nokuhlanza;
• ukujula kokufakwa kwe-electrode-socket kanye namandla okubamba;
• ukuhlola okusebenzayo kwe-high-voltage ngesikhathi sokwenziwa;
• ukuhlolwa kokugcina ngaphansi komthwalo we-electrode olawulwayo;
• izinhlelo zokuthatha amasampula zokuhlola i-dielectric nokuguga;
• imibandela ecacile yokwenqaba umsindo, iphunga, i-corona ebonakalayo nokuzwa kwegobolondo.
Iphrofayela yamanje yomhlinzeki oqinisekiswe ngaphandle ye-INKUE ibala onjiniyela bangaphakathi be-R&D, abahloli bezilawuli zekhwalithi, ukuhlolwa komkhiqizo kuyo yonke imigqa yokukhiqiza, ukulandeleka kwezinto ezingavuthiwe nokuhlolwa komkhiqizo ophelile. Lezi zilawuli zibaluleke kakhulu emikhiqizweni ye-high frequency, lapho umehluko omncane wokuhlanganisa ungashintsha i-electric field.
Imibuzo Ejwayelekile
Ingabe ipulasitiki ejiyile yodwa ingamisa ukukhukhula kwe-high-voltage?
Akuthembekile. Ukujiya kungathuthukisa ukuvikelwa okuqinile, kodwa ukulandelela okungaphezulu kusengakwazi ukulandela imithungo, izimbambo, ukungcola noma izingxenye zangaphakathi. Idizayini idinga ukuhleleka kokugwema, ukugudluka, ukuvikelwa okuqinile, ukulawula inkambu kanye nokuhlanzeka kwenqubo.
Ingabe kuphephile ukuxhuma ithusi le-copper ku-neutral yamandla ukuze kuvikelwe i-transformer?
Akufanele kusetshenziswe njengendlela evamile yokulungisa. I-neutral ayiyona inhlabathi yokuvikela, ingase ithwale amandla futhi ingahlali ezingeni lomhlaba ngaphansi kwazo zonke izimo zokufaka ucingo noma zokonakala. Noma yisiphi isivikelo kufanele sibe yingxenye yohlelo olugunyaziwe lokuvikela futhi luqinisekiswe ezimweni ezijwayelekile nezokonakala okukodwa.
Ingabe ukuphalaza ngokugcwele kuyakuqeda ukukhishwa kwamandla kagesi?
Cha. Izimbobo, ukwelapheka okungaphelele, ukunamathela okubi, ukungcola kanye nabe-conductors ababukhali bangaphakathi kusengakwazi ukudala ukukhishwa kwendawo. I-potting kufanele icaciswe futhi ilawulwe njengenqubo yokukhiqiza.
Kungani idivayisi idlula ekuqaleni kodwa yehluleke ngemuva kwezinsuku ezimbalwa?
Ukumuncwa komswakama, ukufuduka kwezinsalela, ukujikeleza kokushisa, ukunyakaza kwemishini kanye nokulandelela okuqhubekayo kungashintsha indlela yokufihla ugesi. Yingakho izivivinyo zokuguga, zemvelo kanye nezokuphindwa kokusetshenziswa zidingeka.
Yakha Okukhiphayo kanye Nokufihla Ugesi Kanyekanye
I-wand yamandla aphezulu eqine kakhulu ayiyona ene-voltage engalayishwanga ephakeme kakhulu. Yileyo ehlinzeka ngokusebenza kwe-electrode okuhlosiwe ngokungaguquki, ngaphakathi kwe-energy envelope elawulwayo, ngenkathi igcina ubuqotho bokufihla ugesi phakathi kokubekezelela kokukhiqiza kanye nezimo zokusetshenziswa kwangempela.
Ngephrojekthi entsha ye-OEM noma ye-ODM, i-transformer, i-PCB, i-electrode, i-enclosure kanye nohlelo lokuthobela imithetho kufanele kuthuthukiswe njengohlelo olulodwa. Ukwenza lokhu kusenesikhathi kuyashesha futhi akubizi kakhulu kunokuzama ukuhlukanisa i-high-voltage assembly eseqediwe ngemva kokuba ithuluzi selivele likhishiwe.
XOXA NGEPHROJEKTHI YAKHO YEDIVAYISI YOBUHLE NE-INKUE Yabelana ngemakethe oqondiswe kuyo, ubuchwepheshe, uhlobo lomkhiqizo, inani olilindele kanye nezidingo zokwenza ngendlela oyifisayo. Ithimba le-INKUE lingasiza ukuhlola indlela efanele yokuthuthukisa ilebula yangasese, i-OEM noma i-ODM. Umbuzo wephrojekthi: smartchan@inkue.com |
Inothi lobunjiniyela nokuthobela imithetho: Amazinga asebenzayo, izindlela zokuhlola kanye nezindlela zokulawula zincike ekusetshenzisweni komkhiqizo okuhlosiwe, izimangalo, ukwakheka kukagesi, izinsiza kanye nemakethe oqondiswe kuyo. Qinisekisa uhlelo lokuhlola lokugcina ngelebhu efanelekile nochwepheshe bezokulawula ngaphambi kokuqalisa ukuthengisa.
Xhumana nathi
Shiya imininingwane yakho futhi sizokuxhumana nawe.
