Isingeniso:
Ama-chip ahlobene nogesi abelokhu eyisigaba semikhiqizo ethole ukunakwa okukhulu. Ama-chip okuvikela ibhethri awuhlobo lwama-chip ahlobene nogesi asetshenziselwa ukuthola izimo ezahlukahlukene zamaphutha kumabhethri e-single-cell kanye nama-multi-cell. Ezinhlelweni zamabhethri zanamuhla, izici zamabhethri e-lithium-ion zifaneleka kakhulu ezinhlelweni ze-elekthronikhi eziphathwayo, kodwaamabhethri e-lithiumkudingeka sisebenze ngaphakathi kwemingcele elinganisiwe, sigxile ekusebenzeni nasekuphepheni. Ngakho-ke, ukuvikelwa kwamaphakethe ebhethri e-lithium-ion kuyadingeka futhi kubalulekile. Ukusetshenziswa kwemisebenzi ehlukahlukene yokuvikela ibhethri ukugwema ukwenzeka kwezimo zamaphutha njengokukhipha i-OCD ngokweqile kanye nokushisa ngokweqile kwe-OT, kanye nokuthuthukisa ukuphepha kwamaphakethe ebhethri.
Uhlelo lokuphatha ibhethri luveza ubuchwepheshe bokulinganisela
Okokuqala, ake sixoxe ngenkinga evame kakhulu yamaphakethe ebhethri, ukuhambisana. Ngemva kokuba amaseli angawodwa akhe iphakethe lebhethri le-lithium, kungase kube nokuqhuma kokushisa kanye nezimo ezahlukahlukene zamaphutha. Lena inkinga ebangelwa ukungahambisani kwephakethe lebhethri le-lithium. Amaseli angawodwa akha iphakethe lebhethri le-lithium awahambisani ngomthamo, ukushaja, kanye nemingcele yokukhipha, futhi "umphumela webhareli" ubangela ukuthi amaseli angawodwa anezakhiwo ezimbi kakhulu athinte ukusebenza okuphelele kwephakethe lebhethri le-lithium lonke.
Ubuchwepheshe bokulinganisa ibhethri le-lithium buqashelwa njengendlela engcono kakhulu yokuxazulula ukuhambisana kwamaphakethe ebhethri le-lithium. Ukulinganisa iwukulungisa i-voltage yesikhathi sangempela yamabhethri anamakhono ahlukene ngokulungisa ugesi wokulinganisa. Uma ikhono lokulinganisa liqina, kulapho ikhono lokucindezela ukwanda komehluko we-voltage nokuvimbela ukuqhuma kokushisa liqina khona, futhi kungcono ukuzivumelanisa nezimo.iphakethe lebhethri le-lithium.
Lokhu kuhlukile kumvikeli osekelwe kwihadiwe olula kakhulu. Isivikelo sebhethri le-lithium singaba isivikelo esiyisisekelo se-overvoltage noma isivikelo esithuthukisiwe esingaphendula ekungangeni kwamandla kagesi, iphutha lokushisa noma iphutha lamanje. Ngokuvamile, i-IC yokuphatha ibhethri ezingeni le-lithium battery monitor kanye ne-fuel gauge ingahlinzeka ngomsebenzi wokulinganisa ibhethri le-lithium. Isivikelo sebhethri le-lithium sinikeza umsebenzi wokulinganisa ibhethri le-lithium futhi sihlanganisa nomsebenzi wokuvikela i-IC onokulungiselelwa okuphezulu. I-fuel gauge inezinga eliphakeme lokuhlanganiswa, okuhlanganisa umsebenzi wesivikelo sebhethri le-lithium, futhi ihlanganisa ama-algorithms okuqapha athuthukile ngokusekelwe kuwo.
Kodwa-ke, amanye ama-IC okuvikela ibhethri le-lithium manje afaka nemisebenzi yokulinganisa ibhethri le-lithium ngama-FET ahlanganisiwe, angakhipha ngokuzenzakalelayo amabhethri agcwele amandla aphezulu ngesikhathi sokushaja futhi agcine amabhethri anamandla aphansi eshajekile ngokulandelana, ngaleyo ndlela alinganiseleiphakethe lebhethri le-lithiumNgaphezu kokusebenzisa isethi ephelele yemisebenzi yokuvikela i-voltage, yamanje kanye neyokushisa, ama-IC okuvikela ibhethri nawo aqala ukwethula imisebenzi yokulinganisela ukuze ahlangabezane nezidingo zokuvikela zamabhethri amaningi.
Kusukela ekuvikelweni okuyinhloko kuya ekuvikelweni kwesibili
Kusukela ekuvikelweni okuyinhloko kuya ekuvikelweni kwesibili
Isivikelo esiyisisekelo kakhulu ukuvikelwa kwamandla aphezulu. Wonke ama-IC okuvikela ibhethri le-lithium ahlinzeka ngesivikelo samandla aphezulu ngokuya ngamazinga ahlukene okuvikela. Ngalesi sisekelo, amanye ahlinzeka ngesivikelo samandla aphezulu kanye nokukhishwa kwamandla aphezulu, kanti amanye ahlinzeka ngesivikelo samandla aphezulu kanye nokukhishwa kwamandla aphezulu kanye nokushisa ngokweqile. Kwamanye amaphakethe ebhethri le-lithium anamaseli aphezulu, lesi sivikelo asisanele ukuhlangabezana nezidingo zephakethe lebhethri le-lithium. Okwamanje, kudingeka i-IC yokuvikela ibhethri le-lithium enomsebenzi wokulinganisela ozimele webhethri le-lithium.
Lokhu kuvikela kwe-IC kungokwesivikelo esiyinhloko, esilawula ukushaja nokukhipha ama-FET ukuze aphendule ezinhlotsheni ezahlukene zokuvikela amaphutha. Lokhu kulinganisela kungaxazulula inkinga yokuqhuma kokushisa kwe-iphakethe lebhethri le-lithiumkahle kakhulu. Ukuqongelela ukushisa ngokweqile ebhethrini elilodwa le-lithium kuzobangela umonakalo ku-lithium battery pack balance switch kanye nama-resistor. Ukulinganisa ibhethri le-lithium kuvumela ibhethri ngalinye le-lithium elingenaphutha ephaketheni lebhethri le-lithium ukuthi lilinganiswe ngomthamo ofanayo namanye amabhethri anephutha, okunciphisa ingozi yokubaleka kokushisa.
Njengamanje, kunezindlela ezimbili zokufeza ukulinganisa ibhethri le-lithium: ukulinganisa okusebenzayo kanye nokulinganisa okungasebenzi. Ukulinganisa okusebenzayo ukudlulisa amandla noma ukushaja kusuka kumabhethri ane-voltage ephezulu/ephezulu ye-SOC kuya kumabhethri ane-SOC ephansi. Ukulinganisa okungasebenzi ukusebenzisa ama-resistor ukusebenzisa amandla amabhethri ane-voltage ephezulu noma ashaja ephezulu ukufeza inhloso yokunciphisa igebe phakathi kwamabhethri ahlukene. Ukulinganisa okungasebenzi kunokulahlekelwa kwamandla okuphezulu kanye nengozi yokushisa. Uma kuqhathaniswa, ukulinganisa okusebenzayo kusebenza kangcono, kodwa i-algorithm yokulawula inzima kakhulu.
Kusukela ekuvikelweni okuyinhloko kuya ekuvikelweni kwesibili, uhlelo lwebhethri le-lithium ludinga ukuhlonyiswa nge-monitor yebhethri le-lithium noma i-gauge kaphethiloli ukuze kufezwe ukuvikelwa kwesibili. Nakuba ukuvikelwa okuyinhloko kungasebenzisa ama-algorithms okulinganisela ibhethri ahlakaniphile ngaphandle kokulawulwa kwe-MCU, ukuvikelwa kwesibili kudinga ukudlulisa i-voltage yebhethri le-lithium kanye nogesi ku-MCU ukuze kwenziwe izinqumo ezingeni lesistimu. Ama-monitor ebhethri le-lithium noma ama-gauge kaphethiloli ngokuyisisekelo anemisebenzi yokulinganisa ibhethri.
Isiphetho
Ngaphandle kweziqaphi zamabhethri noma ama-gauge kaphethiloli ahlinzeka ngemisebenzi yokulinganisa ibhethri, ama-IC okuvikela ahlinzeka ngokuvikela okuyinhloko awasagcini ekuvikeleni okuyisisekelo njengokusebenzisa amandla amaningi ngokweqile. Ngokusetshenziswa okwandayo kwamaseli amaningiamabhethri e-lithium, amabhethri amakhulu azoba nezidingo eziphakeme kakhulu zama-IC okuvikela, futhi ukwethulwa kwemisebenzi yokulinganisela kuyadingeka kakhulu.
Ukulinganisela kufana nohlobo lokulungisa. Ukushaja nokukhipha ngakunye kuzoba nesinxephezelo esincane sokulinganisela ukuze kulinganiswe umehluko phakathi kwamabhethri. Kodwa-ke, uma iseli lebhethri noma iphakethe lebhethri ngokwalo linezinkinga zekhwalithi, ukuvikelwa nokulinganisela akukwazi ukuthuthukisa ikhwalithi yephakethe lebhethri, futhi akulona ukhiye ojwayelekile.
Uma unemibuzo noma ungathanda ukwazi okwengeziwe, sicela ungangabazi ukungithumelelaxhumana nathi.
Isicelo Sekhotheshini:
UJacqueline:jacqueline@heltec-energy.com/ +86 185 8375 6538
I-Sucre:sucre@heltec-bms.com/ +86 136 8844 2313
UNancy:nancy@heltec-energy.com/ +86 184 8223 7713
Isikhathi sokuthunyelwe: Okthoba-21-2024