Vim li cas 72V Roj Teeb Pob Dominate E-Motorcycle Market
Cov72V roj teebpob tau dhau los ua tus qauv kub rau siab -kev ua haujlwm hluav taws xob maus taus, muab qhov zoo sib npaug ntawm lub zog tso zis, muaj peev xwm ntau, thiab kev tswj xyuas thermal. Txawm hais tias koj yog ib tus neeg nyiam DIY tsim cov khoom siv hloov pauv kev cai lossis cov chaw tsim khoom siv B2B roj teeb kev daws teeb meem, kev nkag siab txog kev ua tiav ntawm 72V system yog qhov tseem ceeb rau kev nyab xeeb, kev ua tau zoo, thiab kev ua raws cai.
Hauv phau ntawv qhia dav dav no, peb rhuav tshem txhua yam koj xav paub txog72V fais maus taus roj teebpob khoom-los ntawm kev xaiv ntawm tes chemistry thiab BMS configuration rau thermal tswj thiab ntawv pov thawj yuav tsum tau. Thaum kawg, koj yuav muaj kev paub txog kev qhia, tsim, lossis yuav ib lub 72V uas ua tau raws li kev ua haujlwm niaj hnub thiab cov qauv kev nyab xeeb.
Dab tsi yog 72V Electric Motorcycle Battery Pack?
Lub 72V roj teeb pob yog ib lub lithium rechargeable-ion zog cia system teeb tsa kom xa cov nominal voltage ntawm kwv yees li 72 volts. Hauv kev xyaum, qhov no feem ntau txhais tau hais tias 20-series (20S) teeb tsa siv lithium-ion hlwb nrog rau qhov nominal voltage ntawm 3.6V-3.7V ib lub xov tooj.
Ntsiab Specifications ntawm ib Glance:
|
Parameter |
Hom Tus nqi |
Sau ntawv |
|
Nominal voltage |
72V |
20S Li-ion configuration |
|
Fully Charged Voltage |
84V |
4.2V ib cell × 20 |
|
Txiav- tawm Votage |
60V |
3.0V ib cell × 20 |
|
Common Peev Xwm |
30Ah,40Ah,50Ah,60Ah |
Txiav txim qhov ntau thiab qhov hnyav |
|
Cov ntsiab lus zog |
2.16 kWh - 4.32 kWh |
72V × qhov siab |
|
Qhov hnyav |
15kg-35kg |
Nws txawv ntawm chemistry thiab casing |
|
Lub neej voj voog |
800-2, 000+ voj voog |
Nyob ntawm tes zoo thiab kev siv |
Cell Chemistry Xaiv: Lub hauv paus ntawm Kev Ua Haujlwm
Qhov kev xaiv ntawm tes chemistry txiav txim siab koj lub pob roj teeb lub zog ceev, lub neej voj voog, kev ruaj ntseg profile, thiab tus nqi. Rau 72V hluav taws xob maus taus daim ntawv thov, peb chemisries ua lag luam nyob rau hauv 2026:
1. NCM (Nickel Cobalt Manganese) - Kev Xaiv Kev Ua Haujlwm NCM hlwb (tshwj xeeb yog NCM 523, 622, thiab 811 variants) muab lub zog siab tshaj plaws ntawm cov kev xaiv lag luam, feem ntau 200–250 Wh / kg. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas txo qhov hnyav yog qhov tseem ceeb.
Pros:
Lub zog siab tshaj plaws thiab lub zog tshwj xeeb
Zoo heev rau siab - maus taus ceev uas xav tau ntau yam
Mature mov saw nrog ntau tier-1 manufacturers (Samsung SDI, LG Chem, CATL)
Cons:
Tus nqi siab dua ib kWh
rhiab heev rau thermal runaway tshaj LFP
Yuav tsum tau sophisticated BMS thiab thermal tswj
Qhov zoo tshaj plaws rau: Cov tsheb maus taus zoo tshaj plaws, ntev - cov neeg caij tsheb thauj mus los, thiab kev ua tau zoo- taw qhia tsim qhov twg pob nyiaj tso cai.
2. LFP (Lithium Iron Phosphate) - Kev Nyab Xeeb Champion LFP chemistry tau txais kev lag luam tseem ceeb vim nws cov thermal stability zoo dua thiab lub neej voj voog. Lub zog ceev yog qis dua ntawm **140–160 Wh/kg**, tab sis kev lag luam tawm -tawm yog txaus siab rau ntau daim ntawv thov.
Pros:
Tshwj xeeb thermal stability (tsis muaj thermal khiav mus txog 270 degree)
Lub neej voj voog ntev tshaj plaws (2,000–3,000+ cycles)
Tus nqi qis dua ib kWh
Cobalt-Chemistry dawb (kev coj ncaj ncees thiab khoom siv-chain zoo)
Cons:
20-30% hnyav dua thiab bulkier dua NCM rau qhov sib npaug
Lower voltage toj siab xav tau ntau lub hlwb kom sib npaug zog
Txo kev ua haujlwm hauv sub-zero kub
Qhov Zoo Tshaj Plaws Rau: Cov tsheb thauj mus los, cov tsheb thauj khoom maus taus, kev tsim cov peev nyiaj, thiab cov ntawv thov tseem ceeb rau kev nyab xeeb thiab kev ua neej ntev tshaj li qhov siab tshaj plaws.
3. Sodium-Ion (Na-Ion) - Qhov Hloov Kho Tshiab
Sodium-Ion thev naus laus zis tau loj hlob sai thiab tam sim no ua lag luam siv tau rau qis- mus rau - nruab nrab cov ntawv thov. Lub zog ceev zaum ntawm **120–160 Wh/kg**, piv rau cov tiam LFP thaum ntxov.
Pros:
Tus nqi qis tshaj ib kWh (ntau raw khoom)
Kev ua tau zoo heev qis - qhov kub thiab txias (-20 degree)
Tsis yog -flammable thiab non- lom
Tsis muaj cobalt, npib tsib xee, lossis lithium khoom txwv
Cons:
Tsawg zog ceev dua NCM
Tseem maturing supply chain
Txwv siab - tso tawm - tus nqi xaiv
Qhov zoo tshaj plaws rau:Cov tsheb maus taus hauv nroog, txias -kev nyab xeeb kev siv, thiab tus nqi- kev lag luam rhiab heev.
Battery Management System (BMS): Lub hlwb ntawm koj pob
Lub Tuam Txhab Tswj Roj Teeb tsis yog - sib tham tau rau ib qho 72V lithium - ion pob. Nws saib xyuas cov hluav taws xob ntawm tes, sib npaug sib npaug ntawm cov hlwb, tiv thaiv kev ua txhaum cai, thiab sib txuas lus nrog tus maub los maus taus.
Qhov tseem ceeb BMS Functions rau 72V Pob
| Kev tiv thaiv Feature | Tej yam tshwm sim | Lub hom phiaj |
| Kev tiv thaiv overcharge | >4.25V ib cell | Tiv thaiv cell puas thiab thermal runaway |
| Tshaj -Kev Tiv Thaiv Tawm | <2.8V per cell | Tiv thaiv kom tsis txhob muaj peev xwm poob |
| Kev tiv thaiv overcurrent | 1.5 × - 3 × ntsuas tam sim no | Tiv thaiv cov kab mob thiab cov kab mob los ntawm overload |
| Kev tiv thaiv luv luv | <100μs response time | Kev nyab xeeb tseem ceeb feature |
| Kev ntsuas kub | Them nqi: 0℃-45 degree; Tawm: -20℃-60 degree | Tiv thaiv kev ua haujlwm hauv qhov chaw tsis zoo thermal |
| Cell Balancing | Active lossis passive, ± 10mV-50mV lub hom phiaj | Ua kom muaj kev laus tsis sib xws thiab muaj peev xwm siab tshaj plaws |
BMS Architecture Considerations
Rau 72V systems, koj yuav xav tau 20S BMS (los yog 21S / 22S yog tias siv LFP qhov sib txawv voltage nkhaus). Cov kev txiav txim siab architectural tseem ceeb suav nrog:
Active vs. Passive Balancing:
Passive balancing ** los ntshav ntau dhau los ntawm cov hlwb siab los ntawm cov resistors. Yooj yim thiab pheej yig dua, tab sis nkim zog thiab qeeb dua.
Active ntsuas ** hloov cov nqi ntawm cov hlwb siv inductors lossis capacitors. Ntau dua thiab sai dua, tshwj xeeb tshaj yog rau cov pob khoom loj, tab sis ntxiv cov nqi thiab qhov nyuaj.
Kev sib txuas lus raws tu qauv:
Niaj hnub nimno fais fab maus taus yuav tsum tau CAN tsheb npav sib txuas lus ntawm BMS thiab lub cev muaj zog maub los. Xyuas kom koj BMS txhawb cov txheej txheem xav tau los ntawm koj tus maub los (CAN, RS485, lossis UART).
Mechanical Design thiab Thermal Management
Pob Architecture: Cylindrical vs. Prismatic vs. Hnab
| Cell Format | Qhov zoo | Qhov tsis zoo | Common Use Case |
| 18650/21700 Cylindrical | Cov ntim ntau lawm, zoo ib yam, yooj yim los hloov cov hlwb ib leeg | Tsawg volumetric efficiency, complex sib dhos | DIY tsim, me me -batch ntau lawm |
| Prismatic | Zoo heev volumetric efficiency, robust casing, zoo thermal conductivity | Tus nqi siab dua, nyuaj dua los hloov cov hlwb | OEM ntau lawm, hwm pob |
| Hnab | Lub zog ceev tshaj plaws, hloov tau daim ntawv yam | Yuav tsum tau compression fixtures, rhiab rau o | Custom shapes, space -constrained designs |
Thermal Management Strategies
Thaum tshav kub kub tsim ntsuas nrog tam sim no squared (I²R poob). Rau 72V packs xa 100A + ncov tam sim no, thermal tswj yog qhov tseem ceeb rau kev ua haujlwm thiab kev nyab xeeb.
Passive Cooling (Air-Cooled):
Relies on natural convection thiab cua sov dab dej
Haum rau kev tso tawm tsis tu ncua<1C
Yooj yim, hnyav, thiab kev saib xyuas - dawb
Yuav tsum tau ua tib zoo pack layout los xyuas kom meej huab cua raws
Active Cooling (Kua-Cooled):
Siv cov kav dej txias lossis cov phaj txias kom dissipate cua sov
Essential for high-performance motorcycles (>5 kW nruam)
Tso cai rau tus nqi them / tso tawm ntau dua
Ntxiv qhov hnyav, nqi, thiab complexity
Phase Change Materials (PCM):
Kev siv thev naus laus zis tshiab siv cov khoom siv uas nqus cua sov ntawm qhov kub tshwj xeeb
Muab cov thermal buffering lub sij hawm luv luv high -load lub sij hawm
Passive thiab txij nkawm- dawb, tab sis ntxiv qhov hnyav
Charging Infrastructure thiab Protocols
Charger Specifications
Lub 72V roj teeb pob yuav tsum muaj lub charger haum rau nws cov chemistry tshwj xeeb thiab teeb tsa:
| Parameter | NCM Charger | LFP Charger |
| Charge Voltage | 84.0V (4.2V × 20) | 73.0V (3.65V × 20) |
| Charge tam sim no | 0.3C-0.5C ib txwm (10A-25A rau 30Ah-50Ah) | 0.5C-1.0C muaj peev xwm |
| Charge profile | CC / CV (Tam sim no tsis tu ncua / Tsis tu ncua Voltage) | CC / CV nrog qhov sib txawv voltage setpoint |
| Hom Connector | Anderson, XT90, los yog tswv | Same as NCM |
Kev Them Nqi Zoo Tshaj Plaws
1. Zam 100% SOC rau kev siv txhua hnub: Them rau 80-90% ua rau lub neej voj voog ntev. Tsuas yog them rau 100% thaum xav tau ntau yam.
2. Qhov kub thiab txias: Tsis txhob them qis dua 0℃(NCM) lossis qis dua -10℃(LFP). Kev them nyiaj rau qhov txias txias ua rau lithium plating thiab tsis muaj peev xwm mus tas li.
3. Siv lub charger kom raug: qhov hluav taws xob tsis zoo lossis kev teeb tsa chemistry tuaj yeem ua rau lub hlwb puas lossis tsim kev nyab xeeb.
4. Kev them nyiaj tshuav: Xyuas kom koj BMS muaj sijhawm los ua kom tiav ntawm tes ntsuas qhov kawg ntawm txhua lub voj voog.
Daim ntawv pov thawj kev nyab xeeb thiab kev tswj hwm kev ua raws cai
Rau kev muag khoom lossis kev xa khoom thoob ntiaj teb, koj lub roj teeb 72V yuav tsum ua raws li cov qauv kev nyab xeeb tshwj xeeb. Daim ntawv pov thawj toj roob hauv pes txawv ntawm lub hom phiaj kev lag luam:
Cov ntawv pov thawj tseem ceeb
| Daim ntawv pov thawj | Thaj tsam | Scope | Tus nqi kwv yees | ||
| UN 38.3 | Ntiaj teb no | Kev nyab xeeb kev thauj mus los (yuav tsum tau thauj cov roj teeb lithium) | $2,000–$5,000 | ||
| TS EN 62133 3 | Thoob ntiaj teb | Cov kev xav tau kev nyab xeeb rau cov cell uas tau kaw | $5,000–$15,000 | ||
| TIAB SA 2849 | Tebchaws Meskas | E-bike thiab e-mobility system kev nyab xeeb | $15,000–$30,000 | ||
| TS EN 15194 | European Union | Speed pedelec thiab e-bike kev nyab xeeb | $10,000–$20,000 | ||
| GB / T | Tuam Tshoj | Lub teb chaws cov qauv rau cov tsheb fais fab | Nws txawv ntawm tus qauv tshwj xeeb |
Kev nyab xeeb tsim nta
Tshaj li cov ntawv pov thawj, suav nrog cov yam ntxwv kev nyab xeeb ntawm lub cev:
Fuse Protection: High -amperage fuses ntawm ob qho tib si zoo thiab tsis zoo
Hluav taws kub-Resistant Casing: Aluminium lossis steel enclosures nrog hluav taws kub-retardant internal padding
Pressure Relief Vents: Tso cai tso roj tso rau hauv cov xwm txheej thermal khiav tawm
Crash Detection: Inertial sensors uas disconnect lub pob thaum muaj xwm txheej
Kev Ntsuas IP: Tsawg kawg IP65 rau kev tiv thaiv plua plav thiab dej nkag
Sizing Koj 72V Roj Teeb Pob: Ntau thiab Kev Ua Haujlwm suav
Kev xam yuav tsum muaj peev xwm
Txhawm rau txiav txim siab lub peev xwm raug rau koj daim ntawv thov:
Kauj Ruam 1: Muab xam lub zog siv
Zog ib km (Wh/km)=Lub cev muaj zog (W) ÷ Nruab Nrab Ceev (km/h) × Efficiency Factor`
Yam khoom muaj nqis:
Kev khiav hauj lwm hauv nroog: 25-40 Wh / km
Kev sib xyaw ua ke: 40-60 Wh / km
Txoj kev loj: 60-100 Wh / km
Kauj Ruam 2: Txiav txim siab qhov yuav tsum tau muaj
Yuav Tsum Muaj Peev Xwm (Ah)=(Lub zog ib km × Lub Hom Phiaj Ntau) ÷ Nominal Voltage
Piv txwv xam:
Rau 5kW maus taus nruab nrab ntawm 60km / h nrog kev caij sib xyaw (50 Wh / km), phiaj xwm 100km:
Zog xav tau: 50 Wh/km × 100km=5,000Wh
Yuav tsum muaj peev xwm: 5,000Wh ÷ 72V=69.4Ah → Hloov mus txog 72Ah lossis 80Ah
Tus nqi tso tawm (C-Rate) Kev txiav txim siab
Xyuas kom koj lub pob tuaj yeem xa cov peak tam sim no los ntawm koj lub cev muaj zog:
|
Lub cev muaj zog Hwj chim |
Peak Tam sim no ntawm 72V |
Yam tsawg kawg nkaus C-Rate (rau 50 Aw pob) |
|
3 kW |
50A |
1C |
|
5 kW ib |
80A |
1.6C |
|
10 kWm |
150A |
3C |
|
15 kWm |
220A |
4.4C |
Ib txwm qhia cov hlwb thiab BMS ntsuas tsawg kawg yog 1.5 × koj qhov kev xav tau siab tshaj tam sim no kom ntseeg tau tias muaj kev nyab xeeb thiab muaj kev nyab xeeb.
Cov txheej txheem sib dhos: Tsim lub pob 72V
Cov cuab yeej thiab cov ntaub ntawv xav tau
Spot welder (rau cylindrical hlwb) los yog cov khoom siv soldering (rau tabbed hlwb)
Cov tuav roj teeb lossis npib tsib xee strip (0.15mm-0.2mm ntshiab nickel)
20S BMS nrog qhov ntsuas tam sim no
Multimeter thiab cell voltage tester
Thaum tshav kub kub shrink tubing los yog enclosure
Ntses ntawv thiab Kapton daim kab xev rau rwb thaiv tsev
Cell spacers thiab compression fixtures (rau hnab / prismatic)
Kauj ruam-los ntawm-Txoj Kev Sib Tham Txheej Txheem
Kauj Ruam 1: Kev Ntsuas Cell thiab Soj Ntsuam
Kuaj tag nrho cov hlwb rau sab hauv thiab muaj peev xwm. Pab pawg hlwb nrog cov yam ntxwv sib luag (hauv ± 2% muaj peev xwm, ± 5% tsis kam) kom ntseeg tau tias muaj kev laus laus.
Kauj ruam 2: Lub cev layout
Npaj cov hlwb hauv 20S teeb tsa. Cov layouts muaj xws li:
Ib txoj hlua ib leeg: 20 lub hlwb hauv series (qhov yooj yim tshaj plaws, tab sis siab voltage ib theem)
Parallel-series: 20S2P, 20S3P, thiab lwm yam.
Kauj Ruam 3: Kev sib txuas
Txuas cov hlwb siv qhov chaw vuam (nyiam dua rau cylindrical) lossis siab -zoo soldering. Ua kom huv si, qis -cov pob qij txha tiv thaiv.
Kauj ruam 4: Kev teeb tsa BMS
Txuas BMS xaim xaim rau txhua qhov sib txuas ntawm tes (21 xov hlau rau 20S). Xyuas kom muaj kev sib txuas thiab kev rwb thaiv tsev kom raug.
Kauj Ruam 5: Kev Xeem
- Txheeb xyuas tag nrho cov pob hluav taws xob (≈72V nominal, 84V them tag nrho rau NCM)
- Kuaj BMS functions (them, tso tawm, ntsuas)
- Ua qhov ntsuas load ntawm qib uas xav tau tam sim no
Kauj Ruam 6: Cov ntaub thaiv npog thiab zaum kawg ua ke
Nruab nyob rau hauv kev tiv thaiv casing nrog tsim nyog padding, connectors, thiab labeling.
Kev tu thiab kev daws teeb meem
Kev tu txhua hnub (hli)
Kev kuaj pom pom: Tshawb xyuas qhov o, corrosion, lossis kev puas tsuaj rau lub cev
Voltage check: Txheeb xyuas cov pob hluav taws xob thiab ib pawg ntawm tes ntawm BMS app
Kev sib txuas nruj: xyuas kom cov terminals tseem ceeb thiab cov khoom sib npaug muaj kev ruaj ntseg
Kev huv huv: Khaws pob khoom kom tsis txhob muaj dej noo, av, thiab cov khoom khib nyiab
Cov lus nug nquag nug (FAQ)
Q: Kuv puas tuaj yeem siv 72V roj teeb pob ntawm 60V lossis 84V lub cev muaj zog?
A: Cov tswj lub cev muaj zog muaj qhov tshwj xeeb voltage. A 72V nominal pob (84V max) feem ntau yog sib xws nrog "72V" lossis "84V" cov tswj hwm, tab sis yeej tsis tshaj tus tswj qhov siab tshaj qhov ntsuas hluav taws xob. Siv 72V pob ntawm 60V maub los yuav ua rau tus maub los puas.
Q: Lub roj teeb 72V ntev npaum li cas?
A: Nrog kev saib xyuas kom raug, LFP ntim tau ntev li 5-8 xyoo (2,000+ cycles), thaum NCM pob feem ntau kav 3-5 xyoo (800-1,500 cycles). Kev them nyiaj txhua hnub rau 80% SOC es tsis yog 100% tuaj yeem txuas lub neej los ntawm 40-60%.
Q: Puas muaj kev nyab xeeb los tsim kuv tus kheej 72V roj teeb pob?
A: Kev tsim lub pob 72V suav nrog cov hluav taws xob siab (84V max) thiab lub zog tseem ceeb. Nws yuav tsum muaj cov cuab yeej tsim nyog, kev paub txog kev nyab xeeb hluav taws xob, thiab kev nkag siab txog lithium-ion txaus ntshai. Yog tias koj tsis paub, yuav los ntawm cov chaw tsim khoom muaj npe lossis ua haujlwm nrog tus kws tsim khoom.
Q: Dab tsi yog qhov txawv ntawm 72V thiab 84V roj teeb pob?
A: Qhov no feem ntau yog qhov sib txawv ntawm lub npe sib txawv. Ib pob "72V" siv 20 lithium-ion hlwb hauv series (nominal 3.6V × 20=72V, max 4.2V × 20=84V). Qee tus neeg muag khoom hu rau tib lub teeb tsa "84V" xa mus rau qhov them tag nrho. Nco ntsoov xyuas qhov tseeb suav suav (20S, 21S, thiab lwm yam).
Q: Kuv puas tuaj yeem txuas ob lub 72V roj teeb rau ntau yam?
A: Yog, tab sis tsuas yog tias ob lub pob muaj qhov sib npaug, muaj peev xwm, chemistry, thiab hnub nyoog. Lawv yuav tsum tau txuas nrog rau qhov sib npaug nrog qhov sib npaug ntawm cov khoom siv hluav taws xob kom tsis txhob muaj cov dej ntws tawm. Kev siv dual -BMS teeb lossis ib qho kev tswj hwm kev sib koom ua ke yog pom zoo.
Phau ntawv qhia no yog rau cov ntaub ntawv xov xwm nkaus xwb. Ua hauj lwm nrog siab -voltage roj teeb systems muaj feem cuam tshuam. Yuav tsum ua raws li cov txheej txheem kev nyab xeeb kom raug thiab sab laj nrog cov kws tshaj lij uas tsim nyog thaum tsis ntseeg.
Cov ntsiab lus:
[Kev nkag siab txog Kev Tswj Hluav Taws Xob: Kev Sib Tw Sib Tw]
[LFP vs. NCM: Xaiv Txoj Cai Cell Chemistry rau Koj EV]
[Electric Motorcycle Motor Controllers: Sib Piv Voltage thiab Tam Sim No]
[UN 38.3 Certification: Yam Koj Yuav Tsum Paub Txog Roj Teeb Shipping]
