Ho khetha Sistimi e nepahetseng ea Taolo ea Libetri ea lithium (BMS) ho bohlokoa ho netefatsa polokeho, ts'ebetso le nako e telele ea sistimi ea hau ea betri. Hore na o sebelisa lisebelisoa tsa elektroniki tsa bareki, likoloi tsa motlakase, kapa litharollo tsa polokelo ea matla, tataiso e felletseng ke ena ho u thusa ho etsa qeto e nang le tsebo:
1. Fumana Litlhaloso tsa Betri
Qala ka ho utloisisa litšobotsi tsa mantlha tsa betri ea hau ho netefatsa hore e lumellana le BMS:
- Mofuta oa Leshala
Hlalosa k'hemistri ea betri ea lithium:Lithium ea Ternary (NCM/NCA),LiFePO4 (LFP), kapa tse ling. Mofuta o mong le o mong o na le liprofaele tse ikhethang tsa motlakase le litlhoko tsa polokeho.
Mohlala: Libetri tsa lithium tse nang le ternary (tse tloaelehileng ka 3.7V) li hloka tšireletso e nepahetseng ea ho tjhaja ho feta tekano (≤4.25V), ha LiFePO4 (tse tloaelehileng ka 3.2V) e sebetsa ka mokhoa o sireletsehileng ho fihlela ho 3.65V.
- Bokgoni (Ah)
Bapisa BMShona joale ho ntsha metsi ho sa khaotseng le ho ba le tlhoroho latela bokgoni ba betri ya hao. Dibetri tse nang le bokgoni bo phahameng di hloka diyuniti tsa BMS tse nang le bokgoni bo matla ba ho sebetsana le motlakase.
- Mefuta ea Motlakase
Netefatsa hore motlakase oa BMS o koahela betri ea haumotlakase o tloaelehileng,motlakase o felletseng oa tjhajalemotlakase o fokolang oa ho ntša metsiMethapo e sa tsamaellaneng e beha tshenyo kapa ho fokotseha ha bokgoni.
BMS e tšepahalang e tlameha ho sireletsa le ho ntlafatsa ts'ebetso ea betri ka:
- Tšireletso ea Tefiso e Feteletseng
E kgaola ho tjhaja ka bohona ha motlakase o feta meedi e bolokehileng (mohlala, 4.3V bakeng sa lithium ya ternary).
- Tšireletso ea ho ntša metsi ho feta tekano
E emisa ho ntsha metsi pele motlakase o theoha ka tlase ho meeli ea bohlokoa (mohlala, 2.5V bakeng sa lithium ea ternary) ho thibela ho senyeha ha sele.
- Tšireletso ea Phello e Feteletseng le ea Potoloho e Khutšoanyane
E lemoha maqhubu a mangata a motlakase kapa a makhutšoane (nako ea karabelo: <100μs) ho thibela ho baleha ha mocheso.
- Ho Leka-lekanya Lisele
Ho leka-lekanya ho sa sebetsenge qhala matla a feteletseng e le mocheso (e theko e tlase bakeng sa lipakete tse nyane).
Ho leka-lekanya ka mafolofoloe aba hape matla pakeng tsa lisele (e loketseng litsamaiso tse kholo, e ntlafatsa nako ea bophelo).
- Likarolo tse Tsoetseng Pele
Tlhokomelo ea Naha (SOC): E latela ka nepo matla a betri a setseng.
Taolo ea Mocheso: E hlokomela le ho laola mocheso oa sele ho thibela ho chesa haholo.
Li-interface tsa puisano: E tšehetsa CAN bus, UART, kapa Bluetooth bakeng sa lintlha tsa nako ea sebele le tlhahlobo ea data.
3. Lekola Boleng le Tšepo
Tsetela ho BMS e netefatsang ho tšoarella le ho latela melao:
- Lihlahisoa tse Tummeng
Khetha bahlahisi ba tsebahalang ba nang le boiphihlelo bo pakiloeng moralong le mangolong a BMS (mohlala, UL, CE, ISO 26262 bakeng sa likoloi).
- Boleng ba Kaho
Sekala se phahamengLisebelisoa tsa PCB, ho tjheseletsa ka nepo, le dikarolo tsa boleng bo hodimo (mohlala, di-MOSFET tse sebetsang hantle haholo) di netefatsa botsitso le tshebetso ya mocheso.
- Software le Algorithms
Software e tsoetseng pele ea BMS e nolofalletsa ho hakanya ka nepo SOC, ho hlahloba liphoso le lintlafatso tsa firmware.
4. Bapisa Litlhoko tsa Tikoloho le tsa Ts'ebeliso
Fetola khetho ea hau ho latela maemo a tšebeliso:
- Boholo le Kopanyo
Diyuniti tse nyane tsa BMS di loketse ditshebediso tse nang le sebaka se fokolang, ha meralo ya modular e nolofatsa bokgoni ba ho hola bakeng sa ditsamaiso tsa diindasteri.
- Ho mamella mocheso
Khetha diyuniti tsa BMS tse lekantsoeng bakeng sa mocheso o feteletseng (mohlala, -40°C ho isa ho 105°C) bakeng sa tshebediso ya dikoloi kapa kantle.
- Litlhoko tse Ikhethang
Litharollo tsa BMS tse sa keneleng metsi (IP67), tse sa keneleng lerole, kapa tse hanelang ho thothomela li ntlafatsa ts'epo libakeng tse thata.
Qetello
Ho khetha lithium BMS e nepahetseng ho hloka ho leka-lekanya litlhaloso tsa tekheniki, bokhoni ba ts'ireletso, bohlale ba software, le ho ikamahanya le tikoloho. BMS e tsamaellanang hantle ha e thibele feela ho hloleha empa hape e ntlafatsa ts'ebetso ea matla le ho eketsa nako ea bophelo ba betri.
Bakeng sa litharollo tse etselitsoeng uena, hlahloba lihlahisoa tsa rona tse netefalitsoeng tsa BMS tse etselitsoeng lits'ebetso tse fapaneng tsa betri ea lithium. Ikopanye le sehlopha sa rona ho fumana se lumellanang hantle le litlhoko tsa hau!
Nako ea poso: Mots'eanong-04-2025
