Lapho kuklanywa noma kwandiswe izinhlelo ezisebenzisa ibhethri, umbuzo ovamile uphakama: Ingabe amabhethri amabili ane-voltage efanayo angaxhunywa ngokulandelana? Impendulo emfushane ithiyebo, kodwa kunemfuneko ebalulekile:amandla okumelana ne-voltage yesekethe yokuvikelakumele ihlolwe ngokucophelela. Ngezansi, sichaza imininingwane yobuchwepheshe kanye nezinyathelo zokuphepha ukuqinisekisa ukusebenza okuphephile nokuthembekile.
Ukuqonda Imikhawulo: Ukubekezelelana Kwe-Voltage Yesekethe Yokuvikela
Amabhethri e-lithium avame ukuhlonyiswa nge-Protection Circuit Board (PCB) ukuvimbela ukushaja ngokweqile, ukukhipha ngokweqile, kanye nama-short circuits. Ipharamitha ebalulekile yale PCB yi-i-voltage imelana nesilinganiso sama-MOSFET ayo(izinkinobho zikagesi ezilawula ukugeleza kwamanje).
Isibonelo Sesimo:
Thatha amabhethri amabili e-LiFePO4 anamaseli amane njengesibonelo. Iphakethe ngalinye line-voltage yokushaja egcwele engu-14.6V (3.65V ngeseli ngalinye). Uma ixhunywe ngochungechunge, i-voltage yazo ehlanganisiwe iba29.2VI-PCB ejwayelekile yokuvikela ibhethri engu-12V ivame ukuklanywa ngama-MOSFET alinganiselwe35–40VKulesi simo, i-voltage iyonke (29.2V) iwela ngaphakathi kwebanga eliphephile, okuvumela amabhethri ukuthi asebenze kahle ngokulandelana.
Ingozi Yokweqa Imingcele:
Kodwa-ke, uma uxhuma amaphakethe amane anjalo ngokulandelana, i-voltage iyonke izodlula u-58.4V—idlule kakhulu ukubekezelelana kwama-PCB ajwayelekile angu-35–40V. Lokhu kudala ingozi efihliwe:
Isayensi Ebangela Ingozi
Uma amabhethri exhunywe ngokulandelana, ama-voltage awo ayakhuphuka, kodwa amasekethe okuvikela asebenza ngokuzimela. Ngaphansi kwezimo ezijwayelekile, i-voltage ehlanganisiwe inika amandla umthwalo (isb., idivayisi engu-48V) ngaphandle kwezinkinga. Kodwa-ke, umaibhethri elilodwa liqala ukuvikela(isb., ngenxa yokukhipha amanzi ngokweqile noma ugesi ngokweqile), ama-MOSFET ayo azonqamula lelo phakethe kusekethe.
Kuleli qophelo, i-voltage ephelele yamabhethri asele ochungechungeni isetshenziswa kuwo wonke ama-MOSFET angaxhunyiwe. Isibonelo, ekusethweni kwamaphakethe amane, i-PCB engaxhunyiwe ingabhekana cishe58.4V—idlula isilinganiso sayo esingu-35–40V. Ama-MOSFET angase ahluleke ngenxaukuwohloka kwe-voltage, ikhubaza unomphela isekethe yokuvikela futhi ishiye ibhethri lisengozini yezingozi zesikhathi esizayo.
Izixazululo Zokuxhumeka Kochungechunge Oluphephile
Ukuze ugweme lezi zingozi, landela lezi ziqondiso:
1.Hlola Imininingwane Yomkhiqizi:
Njalo qinisekisa ukuthi i-PCB yokuvikela ibhethri lakho ilinganiswe yini ezinhlelweni zokusebenza eziwuchungechunge. Amanye ama-PCB aklanywe ngokusobala ukuthi aphathe ama-voltage aphezulu ekucushweni kwamaphakethe amaningi.
2.Ama-PCB Aphezulu Anamandla Ngokwezifiso:
Kumaphrojekthi adinga amabhethri amaningi ochungechungeni (isb., isitoreji selanga noma izinhlelo ze-EV), khetha amasekethe okuvikela anama-MOSFET aphezulu enziwe ngokwezifiso. Lawa angenziwa ngendlela yokuthi amelane ne-voltage iyonke yokusetha kwakho uchungechunge.
3.Umklamo Olinganiselayo:
Qinisekisa ukuthi wonke amabhethri ochungechungeni ayalingana ngomthamo, ubudala, kanye nempilo ukuze kuncishiswe ingozi yokungasebenzi kahle kwezindlela zokuvikela.
Imicabango Yokugcina
Nakuba ukuxhuma amabhethri e-voltage efanayo ngochungechunge kungenzeka ngokobuchwepheshe, inselele yangempela isekuqinisekiseni ukuthiizifunda zokuvikela zingaphatha ukucindezeleka kwamandla kagesi aqongelelekayoNgokubeka phambili izici zezingxenye kanye nomklamo osebenzayo, ungakhulisa ngokuphephile izinhlelo zakho zebhethri ukuze zisetshenziswe kumandla aphezulu.
Kwa-DALY, sinikelaizixazululo ze-PCB ezenziwe ngezifisongama-MOSFET ane-voltage ephezulu ukuze ahlangabezane nezidingo zokuxhumeka kochungechunge oluthuthukisiwe. Xhumana nethimba lethu ukuze uklame uhlelo lwamandla oluphephile noluthembekile kakhulu lwamaphrojekthi akho!
Isikhathi sokuthunyelwe: Meyi-22-2025
