Fuse yog ib qho tseem ceeb nyob rau hauv high voltage tis ntawm lub zog tshiab tsheb, uas plays lub luag hauj lwm tseem ceeb nyob rau hauv kev sib cais thiab tshem tawm lub luv luv Circuit Court txhaum ntawm high voltage Circuit Court ntawm hluav taws xob tsheb. Daim ntawv no tshuaj xyuas cov yam ntxwv tseem ceeb thiab tsim lub tswv yim ntawm high voltage fuses siv nyob rau hauv lub tsheb, thiaj li yuav nthuav dav cov tswv yim rau tsheb manufacturers, roj teeb pob thiab hluav taws xob tswj manufacturers xaiv EV fuses tsim nyog.
Nyob rau hauv lub zog tshiab tsheb, nrog rau cov hluav taws xob ntshiab thiab hybrid, cov ntsiab lus tiv thaiv Circuit Court, los yog fuses, yog qhov tseem ceeb dua li yav dhau los. Txoj kev siv hluav taws xob tsawg -voltage fuses thiab tsheb tswj hluav taws xob ua rau muaj kev nyuaj rau cov fuses.
Cov yam ntxwv ntawm ib txwm siv hluav taws xob hluav taws xob fuses yog them los ntawm UL248 series North American tus qauv lossis IEC60127/60269 series, thiab tsis tas yuav tsum muaj kev ntseeg siab ntawm fuses. Ib txwm siv lub tsheb fuses, txhais los ntawm ISO8820 series tus qauv, txhais cov kev sib txuam thiab kev ntseeg siab ntawm cov tsheb thaiv kab hluav taws xob, tab sis lawv cov ntsuas hluav taws xob tsuas yog npog 32VDC thiab qis dua (ISO8820-7/8 tshiab txhais cov fuses rau roj hlwb thiab cov tsheb sib xyaw, tsuas yog nce txog 45VDC0 thiab 45VDC).
Tam sim no, kev ua hauj lwm voltage ntawm cov neeg nrog caij tsheb feem ntau yog ntau tshaj 370V, thiab cov tsheb npav yog ntau tshaj 576V, uas yog siab tshaj 12V / 24V ntawm tsoos tsheb hluav taws xob Cheebtsam. Xws li lub platform ua haujlwm siab xav kom EV / HEV fuses muaj ob qho tib si muaj peev xwm tawg ntawm qis -voltage fuses thiab kev ntseeg siab ntawm lub tsheb fuses. Cov ntawv hauv qab no yuav txheeb xyuas cov fuse siv nyob rau hauv lub tsheb tshiab lub zog thiab tshawb nrhiav nws lub tswv yim tsim thiab kev tsim kho tshiab.
Cov ntsiab lus tseem ceeb ntawm fuse
Piv nrog rau lwm yam kev tiv thaiv hluav taws xob, xws li PTC (cov tshuaj lom neeg muaj pes tsawg leeg), Circuit Court breaker (qhov nyuaj txav), thiab lwm yam, fuses tuaj yeem hais tias yog cov khoom siv yooj yim: rau qis -voltage fuses, tsuas yog yaj (qhov tseem ceeb ntawm lub fuse), lub cev insulating raj, lub hwj chim terminals thiab quartz xuab zeb rau arc extinguishing. Vim nws cov qauv yooj yim, lub fuse tuaj yeem ua tiav ob qho kev ntseeg siab thiab tus nqi qis.
Tau kawg, txawm tias cov khoom siv yooj yim muaj lawv tus kheej tsim teeb meem thiab cov teeb meem. Cov tsis tseem ceeb ntawm EV fuse tau piav qhia luv luv raws li hauv qab no:
1: Rated voltage
Lub platform ua haujlwm voltage ntawm lub zog tshiab hluav taws xob tsheb yog siab. Kev ua haujlwm voltage ntawm cov neeg caij tsheb feem ntau yog ntau tshaj 370V, thiab lub tsheb npav yuav ntau dua 576V. Qhov ntsuas hluav taws xob ntawm cov fuses sib xws yuav tsum yog 500V thiab 700V feem.
Nyob rau tib lub sijhawm, cov yam ntxwv ntawm cov roj teeb fais fab, cov zis hluav taws xob siab DIRECT tam sim no txawv kiag li ntawm lub zog hluav taws xob ntawm cov khoom lag luam yav dhau los, dc arc extinguishing peev xwm ntawm lub fuse yog siab, yuav tsum zam qhov yuam kev ntawm kev xaiv cov tsoos industrial AC ceev melting.
2.: Lub peev xwm tawg
Tus qauv ntawm low-voltage fuse (GB13539.5.3.1) hais tias qhov luv luv -circuit tam sim no yog 10 npaug ntawm qhov ntsuas tam sim no ntawm lub fuse thiab tam sim no saum toj no, thiab cov overload tam sim no qis dua 10 zaug. Feem ntau, cov neeg siv khoom them nyiaj ntau dhau rau qhov ntsuas qhov siab tshaj plaws ntawm lub fuse (I1), tab sis tsis quav ntsej lub sijhawm tsawg ntawm kev tawg (I2a thiab I5). Tab sis nyob rau hauv kev xyaum, nws yog feem ntau tsis ua hauj lwm ntawm tsawg -fold sib cais. Tshwj xeeb tshaj yog nyob rau hauv dc voltage, vim hais tias tam sim no / voltage tsis ntau tshaj xoom, lub arc extinguishing peev xwm ntawm lub fuse yog siab heev. Txawm tias ar{13}} hom fuses feem ntau yog siv rau luv luv - Circuit Court tiv thaiv, tab sis hauv kev siv tswv yim, vim qhov tsis paub tseeb ntawm lub roj teeb pob muaj peev xwm, SOC thiab luv luv - qhov xwm txheej ntawm qhov hluav taws xob, qhov luv luv - Circuit Court tam sim no yuav npog 1500A-10000A lossis txawm wider.
3: Kev tiv thaiv -surge peev
Rau cov chaw tsim khoom roj teeb, txhawm rau txhawm rau tiv thaiv lub peev xwm tsis muaj peev xwm ntau dhau, tab sis rau cov chaw tsim khoom oem lossis pdus, uas yog qhov tseem ceeb, tshwj xeeb tshaj yog cov cua txias compressor ceg lossis cov khoom siv lub cev muaj zog, qhov no feem ntau ua rau kev sib tsoo tsis sib haum xeeb ntsig txog modules poob haujlwm. Qhov kev ua tsis tiav no tsis ua rau muaj hluav taws xob tseem ceeb, tab sis nws tuaj yeem ua rau cov neeg siv khoom tsis zoo.
Rau PTC / cua txias compressor / hwj chim steering thiab lwm yam auxiliary modules (auxiliary machine), vim hais tias ntawm complex Circuit Court tsim, nws yog inevitable uas yuav muaj ib ntus tam sim no tshwm sim los ntawm startup / on -off, thiab lwm yam. Nyob rau lub sij hawm no, peb cia siab tias lub fuse tuaj yeem tiv taus qhov nce siab yam tsis cuam tshuam lub module los ntawm lub kaw lus vim kev ua haujlwm ntxov.
Tam sim no, hluav taws xob tswj / PDU manufacturers feem ntau xaiv aR hom ceev melting. Txhawm rau tiv thaiv cov surge tam sim no, fuses nrog cov ntsuas tam sim no ntau dua raug xaiv, uas txi cov peev txheej tiv thaiv qis dua.
Cov lus hauv qab no yog qhov sib piv ntawm yav dhau los-arc lub sijhawm ntawm tib qhov hluav taws xob / tam sim no ntawm BO TOMahawk hluav taws xob thiab B hom (ceeb toom: Lub sijhawm ua ntej-arc lub sijhawm, qhov loj dua rau yav tom ntej-arc I2T, qhov muaj zog tiv thaiv -surge peev)
4: Kev ntseeg tau
Tau txais txiaj ntsig los ntawm kev txhim kho HEV rau 20 xyoo, JASO tau tshaj tawm FUSE tus qauv D622 rau HEV, uas qhia meej txog kev ntseeg siab uas fuse yuav tsum tau ua.
Txawm hais tias cov fuses hluav taws xob tsis tuaj yeem ua tiav cov qauv no (xws li lubricating roj tsis kam, thiab tsis tshua muaj hluav taws xob thiab kev muaj peev xwm tawg), kev ntseeg siab tuaj yeem ua tiav raws li tus qauv paub tab:
Ntxiv rau cov lus qhia tseem ceeb saum toj no, nws tsis yog qhov taw qhia qee qhov pom ntawm qhov chaw ntawm qee yam, xws li cov khoom siv raj yog iav fiber ntau + resin los yog cov khoom siv ceramic, ib lub raj lub cev lossis ob lub raj lub cev nyob rau hauv parallel, los yog vim li cas qhov saum npoo ntawm cov hlau plating, txawm tias fuse sab hauv quartz xuab zeb yog kho, tsis yog cov neeg siv khoom yuav tsum xyuam xim rau qhov tseem ceeb. Qhov tseem ceeb yog seb lub chaw tsim khoom fuse tuaj yeem ua kom ntseeg tau tias cov khoom ua tau raws li cov yam ntxwv hluav taws xob (xws li lub zog qis thiab lub zog siab DC tawg) thiab kev ntseeg tau.