Kwihlabathi elintsonkothileyo lee-elektroniki zemizi-mveliso kunye nolawulo lwamandla, ambalwa amacandelo akhoyo kuyo yonke indawo kodwa abaluleke kakhulu njenge capacitor. Kwiinjineli zenkqubo kunye neentloko zokuvelisa ezifana noMarcus eJamani, ukuthembeka kwecandelo elinye kunokugqiba isivuno somgca wemveliso wonke. Phakathi koluhlu olukhulu lwamacandelo asebenzayo, i CBB capacitor-eyaziwa ngokusesikweni njenge metallized polypropylene film capacitor-ivelele njengentshatsheli yozinzo, ilahleko ephantsi, kunye nokuqina. Kodwa yintoni eyenza oku kucacileyo uhlobo lwe-capacitor iyimfuneko kuyo yonke into ukusuka AC motor drives ukuya kwiinkqubo zomsindo ophezulu-ukuthembeka?
Eli nqaku lijonge nzulu kubume bezakhiwo, iinuances zokuvelisa, kunye nokusetyenziswa okubalulekileyo kwe CBB capacitor. Njengomvelisi woomatshini abachaneke kakhulu abaphembelela la macandelo e-Dongxin Electronic Technology, ndizibonele ngokwam ukuba umgangatho wesixhobo Inkqubo yomoya iyalela ukusebenza kokugqibela kwe isekethe. Siza kuphonononga ukuba kutheni iinjineli zithembela polypropylene film capacitor kuba befuna kakhulu amandla ombane aphezulu kwaye indala ephezulu iimfuno.
Yintoni kanye kanye i-CBB Capacitor?
Igama elithile "CBB capacitor"iyaziwa ngokubanzi kushishino, kodwa ingqungquthela yayo yokuthiywa kwamagama ihlala ivusa imibuzo. Kwinkqubo yokulinganisa yaseTshayina, "C" imele capacitor, eyokuqala "B" imele ifilimu yendalo engeyiyo eyomhlaba, ize eyesibini "B" ifanekise ngokukodwa. polypropylene njenge izinto zedielectric. Ngoko ke, a CBB capacitor ngokusisiseko asiyo-inductive metallized polypropylene film capacitor.
Ngokungafaniyo ne-electrolytic capacitors ezisebenzisa i-electrolyte engamanzi kwaye ibe ne-polarity, i CBB capacitor ayikho kwi-polar. Oku kuthetha ukuba inokudityaniswa kwi-a isekethe ngaphandle kokujonga iiterminal ezilungileyo okanye ezimbi, ziyenza ilungele AC izicelo. Ngaphakathi kweplastiki okanye iqokobhe lealuminiyam, uya kufumana imicu emibini emide kakhulu ifilimu ye-polypropylene enesinyithi inxeba ngokuqinileyo kunye. I-"metallization" ibhekisa kumaleko we-aluminiyam okanye i-zinc vacuum efakwe ngqo kwifilimu yeplastiki. Olu lwakhiwo luvumela iimpawu zokuziphilisa: ukuba ulwaphulo lwenzeka ngenxa ye overvoltage, umaleko wesinyithi ojikeleze impazamo udala isenzo esifana ne-fuse, ukuphunga kunye nokwahlula isiphene, ukuvumela capacitor ukuqhubeka nokusebenza.
Isayensi Ngaphakathi: Kutheni Usebenzisa ifilimu yePolypropylene njengeDielectric?
Intliziyo nayiphi na capacitor yiyo idielectric-I izinto zokugquma ehlala phakathi kwe iipleyiti ezimbini. Ukhetho lwe idielectric iyalela i capacitor's ukuziphatha. Iinjineli sebenzisa ifilimu ye-polypropylene kuba inikeza isethi eyahlukileyo yeenzuzo ngaphezu kwezinye izinto ezifana ne-polyester (i-CL capacitors).
Ifilimu yePolypropylene njenge-dielectric ibonakaliswa ngokugqithisileyo idielectric ephantsi ilahleko kunye nokunyuka okuncinci kwiqondo lokushisa langaphakathi. Oku kukhokelela ekubeni kakhulu into ephantsi yokuchitha (DF), rhoqo ngaphantsi kwe-0.001 kwi-1 kHz. Ye isekethe umyili, oku kuthetha i capacitor yenza ubushushu obuncinane kakhulu, naxa iphathwa umsinga ophezulu wangoku. Ukongezelela, kukho i-polypropylene ukuxhathisa okuphezulu kwe-insulation, oku kuthetha ukuba ayivuzi lula. Oku kwenza kube lukhetho oluhle kakhulu ukudibanisa kunye nezicelo zokugcina apho ukugcina ingqibelelo yentlawulo kubalulekile. I i-coefficient yobushushu ye-polypropylene nayo ingalunganga kwaye ihambelana ngokuthe ngqo, inika uzinzo kuluhlu olubanzi lwamaqondo obushushu okusebenza. Le nzululwazi yezinto kutheni CBB capacitors zikumgangatho we amandla ombane aphezulu kunye nomgangatho ophezulu wangoku iimeko apho ukuthembeka kungaxoxiswana.
Ukucacisa iiNguqulelo ezahlukeneyo: I-CBB61 Capacitor kunye noLawulo lweMoto
Enye yezona zinto zininzi isetyenziswa rhoqo ezahlukeneyo kusapho yi CBB61 capacitor. Ukuba ukhe wahlukana nefeni yesilingi, i-fan yokukhupha, okanye encinci AC motor, ukhe wabona ibhokisi emnyama encinci, exande. Nantso ke CBB61.
I CBB61 igqunywe kwisikwere esingeva yidangatye iqokobhe leplastiki kwaye itywinwe nge epoxy resin. Le encapsulation ikhusela inxeba element ukusuka ukufuma kunye vibration. Umsebenzi wayo ophambili njengokubaleka capacitor kuba isigaba esinye AC iinjini. Ibonelela ngokutshintsha kwesigaba esiyimfuneko ukwenza intsimi yamagnetic ejikelezayo, evumela i imoto ukuqalisa nokusebenza ngokufanelekileyo. Kuba ezi motor zihlala zibaleka iiyure okanye iintsuku ngokuqhubekayo, i ukuthembeka okuphezulu kwaye ilahleko ephantsi iimpawu ze CBB61 zibalulekile. Ukusilela apha akupheli nje a isekethe; imisa intshukumo yomzimba yomatshini. E-Dongxin, wethu I-CBB61 ifilimu yefilimu yefilimu ye-Capacian iqinisekisa ukuba la malungu abalulekileyo anenxeba kunye noxinzelelo olungaguqukiyo ukuthintela ukusilela kwangaphambi kwexesha.
I-Powerhouse: Usetyenziso lwe-CBB60 kwiiMoto ezikwiSigaba esinye
Ukunyuka ngobungakanani kunye nokuphathwa kwamandla, sidibana ne CBB60 capacitor. Ngelixa umsebenzi ofanayo kwi CBB61 (ukuqala nokuqhuba AC iinjini), i CBB60 ngokwesiqhelo ibonisa imilo yecylindrical kwaye yenzelwe phezulu amandla izicelo, ezinje ngoomatshini bokuhlamba, iimpompo zamanzi, kunye neecompressors zomoya.
I CBB60 sebenzisa umgca onzima ifilimu ye-polypropylene enesinyithi. Olu lwandiso loyilo luyivumela ukuba imelane phezulu amaza olwandle. Njengomzala wayo omncinci, itywinwe ngayo epoxy okanye ioli ukuqinisekisa Ukugquma okuphezulu kunye nokuzinza kwe-thermal. I ukuziphilisa Ubuchule bubaluleke kakhulu apha kuba iimpompo kunye neecompressor zihlala zifumana i-voltage spikes ngexesha lokuqalisa. A i-motor capacitor njenge CBB60 kufuneka ifunxe ezi spikes ngaphandle kokusilela. Uyilo lwe-cylindrical lukwancedisa ekulawuleni i-thermal, ivumela ubushushu ukutshabalalisa ngokulinganayo.
Ubuchule boMbane oPhezulu: Ngaphakathi kwe-CBB81 Capacitors
Xa i I-Voltage ukunyuka kunye ne rhoqo ukwanda, i-capacitors esemgangathweni iqala ukulwa. Lo ngummandla we CBB81 capacitors. Ezi ziyilelwe ngokukodwa amandla ombane aphezulu, indala ephezulu, kwaye ukubetha kwentliziyo ephezulu imisinga. Uya kuzifumana rhoqo kwii-ballasts ze-elektroniki, izixhobo zombane, kunye neesekethe ze-resonance ezithe tye kwimiboniso.
Ngokwesakhiwo, i CBB81 yohluka kumgangatho metallized polypropylene film capacitors. Ihlala isebenzisa uchungechunge lwangaphakathi lwesakhiwo sokudibanisa usebenzisa i-aluminium foil kunye nefilimu ye-polypropylene. Olu lwakhiwo lwe-hybrid lunciphisa kakhulu ukuxhathisa series kunye ne-inductance, evumela i capacitor ukusingatha i-pulses ngokukhawuleza ngaphandle kokutshisa. I CBB81 uyagqwesa kwi I-Right-frequency isihluzo kunye neesekethe resonance apho ukuchithwa okuphantsi ibalulekile. Kuyila iinjineli inverter iisekethe okanye amandla e-elektroniki iinkqubo, i CBB81 kudla ngokuba yinxalenye yendima ye-"snubber"-ukukhusela iiswitshi ze-semiconductor (njenge-IGBTs) ukusuka kwi-voltage spikes.
Imigangatho yoKhuseleko: Indima ebalulekileyo yeX2 Capacitor
Ukhuseleko lubalulekile kwi i-elektroniki yanamhlanje. I X2 capacitor luhlobo oluthile lokhuseleko olukalisiweyo lwe CBB capacitor. Ezi ziyilelwe ukuba zidityaniswe ngokuthe ngqo kuwo wonke umgca we-AC we-mains (Umgca ukuya kumgca). Indima yabo ephambili yile uphazamiseko lwe-electromagnetic (EMI) ingcinezelo.
Kutheni le nto ukala "X2" lubalulekile? Ukuba umgangatho capacitor ayiphumelelanga ngelixa iqhagamshelwe kwizinto ezingundoqo, inokuba yisekethe emfutshane kwaye ibangele umlilo. An X2 capacitor, nangona kunjalo, yenzelwe ukusilela "ikhuselekile" -ngokuqhelekileyo kwindawo evulekileyo isekethe imowudi-kwaye inokumelana nobukhulu overvoltage izikhonkwane (ukuya kuthi ga kwi-2.5kV) ngaphandle kokubamba umlilo. Basebenzisa i-specialized ifilimu ye-polypropylene enesinyithi kwaye zivalelwe kuvavanyo oluqatha iqokobhe leplastiki kwaye epoxy resin. Lonke unikezelo lwamandla, ukusuka kwitshaja yelaptop yakho ukuya kumzi-mveliso izixhobo zombane, uthembele ku X2 capacitors ukuba isihluzo khupha ingxolo kwaye ugcine isixhobo sithobela imigaqo yokhuseleko yehlabathi.
Ngaphaya kwezinto eziSiseko: I-CBB82 kunye nezicelo eziPhezulu zangoku
Ngelixa ingaphantsi kwe-CBB22 okanye i-CBB81, i CBB82 imele indaleko eyongezelelweyo kwiimfuno ezithile. CBB82 ii-capacitors zihlala zilungiselelwe amandla ombane aphezulu kwaye Ngaphezulu izicelo zokubetha kwentliziyo. Babelana nge ukuthembeka okuphezulu kwaye ilahleko ephantsi iimpawu zosapho kodwa zenzelwe ukusebenza ngamandla ngakumbi I-Right-frequency AC kwaye DC iisekethe.
Ezi zidla ngokufumaneka kwi-specialized iisekethe zokukhanyisa, iinkqubo zokutshisa, kunye nezixhobo apho ukuchaneka kunye nokuqina kuyadingeka. Isitshixo kwi CBB82's ukusebenza ilele kwi i-metallization iphethini kunye nokudibanisa phakathi kwefilimu kunye nezikhokelo zangaphandle (i-sprayed metal ends). Uqhagamshelwano oluqinileyo luyaqinisekisa ESR ephantsi (Equivalent Series Resistance), ebaluleke kakhulu ekunciphiseni ilahleko yamandla kwi Ngaphezulu iimeko.
Ukusetyenziswa kweePolypropylene Film Capacitors kwiiSekethe zanamhlanje
I Ukusetyenziswa kwe-polypropylene ii-capacitors zanda ngaphaya kweenjini. Ngenxa yabo iimpawu ezibalaseleyo zamatyeli kwaye ukuphazamiseka okuphantsi, zixabiswa kwishishini leaudio. Kwizandisi zomsindo eziphezulu kunye nee-crossovers, CBB capacitors zisetyenziselwa umqondiso ukudibanisa kunye nokucoca. Ngokungafaniyo ne-ceramic capacitors, enokwazisa ingxolo ye-microphonic kunye nokuphazamiseka, polypropylene ayithathi cala ngokuvakalayo.
Kwi amandla e-elektroniki, ngokukodwa kwi inverter kwaye umguquli uyilo, ezi ii-capacitors zisetyenziswa ngokuqhelekileyo ukwenzela ukuhluzwa kwe-DC-Link kunye nokucoca. Zisebenza njengezithinteli zamandla, zigudisa i-ripple kwi Umbane weDC ibhasi. Ukukwazi kwabo ukuphatha umsinga ophezulu wangoku ngaphandle kokufudumeza okubalulekileyo kuvumela abaqulunqi ukuba bakhe i-compact, iimodyuli zamandla ezisebenzayo kwiZithuthi zoMbane (EVs) kunye neenkqubo zamandla avuselelekayo. Ukongeza, kwi iisekethe analog ezinje ngabadibanisi kunye neesekethe zesampula-kunye-ukubamba, i Ukugquma okuphezulu ukuxhathisa kwe CBB capacitor iqinisekisa ukuba intlawulo egciniweyo ayivuzi, igcina isignali echanekileyo.
Ukuchaneka koMveliso: Indlela ukuPhepha okuKuchaphazela ngayo ukuthembeka
Njengomvelisi we umatshini wokujija we-metalized film capacitors, Ndihlala ndichazela abathengi abafana noMarcus ukuba umgangatho we capacitor kumiselwa ixesha elide ngaphambi kokuba itywinwe epoxy. Inyathelo elibalulekileyo kukujija.
Uxinzelelo lwe ifilimu ye-polypropylene enesinyithi njengoko inxeba kwi-mandrel kufuneka ilawulwe ngokugqibeleleyo. Ukuba ikhululekile kakhulu, izithuba zomoya zihlala, zikhokelela kwi-ionization (impembelelo ye-corona) kunye nokuphuka kwangaphambili phantsi amandla ombane aphezulu. Ukuba iqinile kakhulu, ifilimu iyolula, iguqula idielectric ubukhulu kunye nokunciphisa amandla ombane wokuqhekeka. Yethu Uthotho lwe-LV-S ngokuzenzekelayo isebenzisa iinkqubo zolawulo loxinzelelo oluphezulu ukuqinisekisa ukuba yonke into CBB capacitor eveliswayo inoxinaniso olufanayo kunye nomthamo. Ngaphaya koko, umgangatho wenkqubo "yentsimbi yokutshiza"-apho i-zinc okanye i-tin itshizwe kwiincam zomqulu wenxeba ukudibanisa iileya-ibalulekile Ngaphezulu ukuphatha. Uxhulumaniso olubi apha ludala ukuchasana okuphezulu kunye nobushushu, utshaba lwalo naluphi na capacitor.
Ungayikhetha njani iCapacitor eLungileyo kuYilo lwakho
Ukukhetha i capacitor ekunene ibandakanya ngaphezulu kokuthelekisa nje amandla ixabiso (lilinganiswe kwiimicrofarads, µF). Injineli kufuneka ithathele ingqalelo:
- Ixabiso lombane: Soloko ukhetha a capacitor nge I-Voltage ireyithingi ephezulu kunowona mgangatho uphezulu I-Voltage kwi yakho isekethe. Kuba AC izicelo, khangela umlinganiselo wombane we-AC ngokukodwa.
- Ukuphindaphinda: Ukuba usebenzisa kwi-a I-Right-frequency isekethe (njengombane wokutshintsha), sebenzisa CBB81 okanye efanayo ilahleko ephantsi iintlobo kunee-CBB eziqhelekileyo eziqhelekileyo.
- Ukuphatha iPulse: Kwiisekethe ezinezikhewu zombane ezibukhali (dv/dt), qinisekisa ukuba capacitor Uluhlu lwedatha luchaza ukubanakho kwexesha lokunyuka kwepulse ephezulu.
- Okusingqongileyo: Qwalasela iqondo lobushushu kunye nokufuma. I-epoxy resin ii-capacitors ezitywiniweyo zibonelela ngokhuseleko olululo, kodwa iimeko ezingqongileyo ezigqithisileyo zinokufuna iiyunithi ezitywinwe ngokwe-hermetically.
Ngokuqonda iimpawu ezithile ze CBB61, CBB60, CBB81, kwaye X2 capacitors, iinjineli zinokuqinisekisa ukuthembeka okuphezulu kunye nokuphila ixesha elide kwizicwangciso zabo.
Iqhosha lezitshixo
I CBB capacitor lilitye lembombo le i-elektroniki yanamhlanje, enikezela ngolungelelwaniso lokusebenza kunye nokuqina ukuba amanye amacandelo ambalwa anokuhambelana.
- Ukupheliswa kokuphakama: Ifilimu yePolypropylene njenge-dielectric inikeza ilahleko ephantsi, Ukugquma okuphezulu, kwaye ukuziphilisa izakhono.
- Ukutshintsha: Isuka e CBB61 kwifeni yedesika yakho ukuya kwi CBB81 kwi amandla ombane aphezulu inverter, kukho umahluko kuyo yonke imfuno.
- Ukhuseleko: X2 ii-capacitors zibalulekile kwii-mains ukuhluza kunye nokuthotyelwa kokhuseleko.
- Ukuthembeka: I Inkqubo yomoya ibaluleke kakhulu; Ukuxinezeleka okuchanekileyo kunye nokuphathwa kwezinto eziphathekayo kumisela ubomi becandelo.
- Ukusebenza: Ilungele indala ephezulu, yangoku ephezulu, kwaye ukudibanisa izicelo ngenxa ESR ephantsi kwaye ukuphazamiseka okuphantsi.
Kwabo babandakanyekayo ekwenziweni kwezi zixhobo zibalulekileyo, uqinisekisa ukuba unezona zinto zingcono iifilimu ezihlanganisiweyo ezenziwe ngesinyithi kunye nezixhobo zokujija ezichanekileyo linyathelo lokuqala lokwakha imveliso ephezulu.
