Qhov txiaj ntsig loj tshaj plaws ntawm organometallic zaj duab xis capacitors yog tias lawv kho tus kheej, uas ua rau cov capacitors yog ib qho ntawm cov capacitors loj tshaj plaws niaj hnub no.

Muaj ob txoj kev sib txawv rau kev kho tus kheej ntawm cov yeeb yaj kiab metalized capacitors: ib qho yog tso tawm tus kheej kho;Lwm qhov yog electrochemical kho tus kheej.Qhov qub tshwm sim ntawm qhov hluav taws xob siab dua, yog li nws kuj tseem hu ua high-voltage self-kho;vim tias qhov kawg kuj tshwm sim ntawm qhov tsis tshua muaj hluav taws xob, nws feem ntau hu ua low-voltage self-kho.

Tshem Tawm Kev Kho Tus Kheej

Txhawm rau qhia txog cov txheej txheem ntawm kev tshem tawm tus kheej, xav tias muaj qhov tsis xws luag hauv cov yeeb yaj kiab organic ntawm ob lub metallized electrodes nrog qhov tsis kam ntawm R. Nyob ntawm qhov xwm txheej ntawm qhov tsis xws luag, nws yuav ua rau cov hlau tsis xws luag, semiconductor lossis tsis zoo. insulated defect.Pom tseeb, thaum qhov tsis xws luag yog ib qho ntawm cov qub, lub capacitor yuav tau tso tawm nws tus kheej ntawm qhov tsis tshua muaj hluav taws xob.Nws tsuas yog nyob rau hauv rooj plaub tom kawg uas hu ua high voltage paug kho nws tus kheej.

Cov txheej txheem ntawm kev tshem tawm tus kheej kho yog tias tam sim ntawd tom qab siv qhov hluav taws xob V rau lub tshuab hluav taws xob metalized, lub ohmic tam sim no I = V / R dhau los ntawm qhov tsis xws luag.Yog li ntawd, qhov ceev tam sim no J = V / Rπr2 ntws los ntawm metallized electrode, piv txwv li, qhov ze rau thaj tsam ntawm qhov tsis xws luag (qhov me me r yog) thiab qhov siab dua nws qhov tam sim no nyob rau hauv metallized electrode.Vim lub Joule kub tshwm sim los ntawm qhov tsis xws luag zog noj W = (V2 / R) r, qhov tsis kam R ntawm ib tug semiconductor los yog insulating tsis xws luag txo exponentially.Yog li ntawd, tam sim no kuv thiab lub zog siv W nce sai, vim li ntawd, qhov ceev tam sim no J1 = J = V / πr12 nce siab hauv thaj av uas cov electrode metallized ze heev rau qhov tsis xws luag, thiab nws Joule tshav kub tuaj yeem yaj cov metallized. txheej hauv cheeb tsam, ua rau lub arc nruab nrab ntawm cov electrodes ya ntawm no.Lub arc sai sai evaporates thiab pov tseg cov hlau molten, tsim ib qho kev sib cais cais tsis muaj hlau txheej.Lub arc yog extinguished thiab nws tus kheej-kho tau tiav.

Vim lub Joule tshav kub thiab arc generated nyob rau hauv lub discharge nws tus kheej-kho cov txheej txheem, lub dielectric nyob ib ncig ntawm qhov tsis xws luag thiab lub rwb thaiv tsev qhov chaw ntawm lub dielectric nto yog inevitably puas los ntawm thermal thiab hluav taws xob puas, thiab yog li tshuaj decomposition, gasification thiab carbonization, thiab txawm. kev puas tsuaj tshwm sim.

Los ntawm cov saum toj no, thiaj li yuav ua tau ib tug zoo meej tso tawm nws tus kheej-kho, nws yog tsim nyog los xyuas kom meej ib tug haum cheeb tsam nyob ib ncig ntawm lub defect, yog li ntawd tus tsim ntawm lub metalized organic zaj duab xis capacitor yuav tsum tau optimized nyob rau hauv thiaj li yuav ua tau ib tug tsim nyog nruab nrab nyob ib ncig ntawm. tsis xws luag, ib tug haum thickness ntawm metalized txheej, ib tug hermetic ib puag ncig, thiab ib tug haum core voltage thiab muaj peev xwm.Lub thiaj li hu ua kev kho tus kheej zoo tshaj plaws yog: lub sijhawm kho tus kheej yog luv heev, lub zog kho tus kheej yog me me, kev sib cais zoo heev ntawm qhov tsis xws luag, tsis muaj kev puas tsuaj rau ib puag ncig dielectric.Txhawm rau kom ua tiav kev kho tus kheej zoo, cov molecules ntawm cov yeeb yaj kiab organic yuav tsum muaj qhov sib piv ntawm cov pa roj carbon tsawg rau hydrogen atoms thiab cov pa oxygen, yog li ntawd thaum lub decomposition ntawm cov zaj duab xis molecules tshwm sim nyob rau hauv tus kheej-kho tawm, tsis muaj carbon yog tsim thiab tsis muaj carbon deposition tshwm sim kom tsis txhob tsim cov tshiab conductive txoj kev, tab sis theej CO2, CO, CH4, C2H2 thiab lwm yam gases yog tsim los tua lub arc nrog ib tug ntse nce nyob rau hauv roj.
Txhawm rau kom ntseeg tau tias cov xov xwm nyob ib puag ncig tsis raug puas tsuaj thaum kho tus kheej, lub zog kho tus kheej yuav tsum tsis txhob loj dhau, tab sis kuj tsis me me, txhawm rau tshem tawm cov txheej txheej metallization nyob ib ncig ntawm qhov tsis xws luag, tsim cov rwb thaiv tsev. (siab tsis kam) tsam, qhov tsis xws luag yuav raug cais tawm, kom ua tiav kev kho tus kheej.Obviously, qhov xav tau kev kho tus kheej lub zog yog ze rau cov hlau ntawm metallization txheej, thickness, thiab ib puag ncig.Yog li ntawd, txhawm rau txo qhov kev kho tus kheej lub zog thiab ua tiav kev kho tus kheej zoo, metallization ntawm cov yeeb yaj kiab organic nrog cov hlau tsis tshua muaj melting point hlau yog ua. Ntxiv rau, cov txheej metallization yuav tsum tsis txhob sib npaug ntawm cov tuab thiab nyias, tshwj xeeb tshaj yog kom tsis txhob khawb, txwv tsis pub. , qhov chaw rwb thaiv tsev cais yuav dhau los ua ceg zoo li thiab tsis ua tiav kev kho tus kheej zoo.CRE capacitors txhua tus siv cov yeeb yaj kiab tsis tu ncua, thiab tib lub sijhawm nruj kev tswj xyuas cov khoom nkag, thaiv cov yeeb yaj kiab tsis raug ntawm lub qhov rooj, kom qhov zoo ntawm cov yeeb yaj kiab capacitor yog tag nrho lav.

Ntxiv rau kev tso tawm tus kheej kho, muaj lwm qhov, uas yog electrochemical kho tus kheej.Cia peb tham txog qhov txheej txheem no hauv tsab xov xwm tom ntej.