NTC qhov kub thiab txias sensors ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev nyab xeeb hauv kev them nyiaj thiab them phom. Lawv feem ntau yog siv rau kev ntsuas kub ntawm lub sijhawm tiag tiag thiab tiv thaiv cov khoom siv overheating, yog li tiv thaiv kev nyab xeeb thiab kev ntseeg siab ntawm cov txheej txheem them nyiaj. Hauv qab no yog kev txheeb xyuas ntawm lawv cov kev siv tshwj xeeb thiab kev ua haujlwm:
1. Daim ntawv thov Scenarios
(1) Kev ntsuas kub hauv cov phom sij
- Tiv tauj Point thiab Cable Joint Monitoring:Thaum lub sijhawm ua haujlwm siab (piv txwv li, DC them ceev ceev), cov dej ntws loj tuaj yeem ua kom muaj cua sov ntau dhau ntawm cov ntsiab lus sib cuag lossis cov pob qij txha vim muaj kev tiv thaiv. NTC sensors embedded nyob rau hauv rab phom taub hau los yog connectors saib kub hloov nyob rau hauv lub sij hawm.
- Kev tiv thaiv overheat:Thaum qhov kub thiab txias tshaj qhov pib ua ntej, lub kaw lus them nyiaj cia li txo qhov tam sim no lossis nres them kom tsis txhob muaj hluav taws kub lossis khoom puas tsuaj.
- Cov neeg siv kev nyab xeeb:Tiv thaiv kom tsis txhob muaj cov phom sij los ntawm overheating, tiv thaiv cov neeg siv hluav taws xob.
(2) Kev tswj qhov kub thiab txias hauv cov khoom siv hluav taws xob
- Fais fab Module Thermal Monitoring:High-voltage fais fab modules (xws li AC-DC converters, DC-DC modules) ua kom sov thaum ua haujlwm. NTC sensors saib xyuas cov heatsinks lossis cov khoom tseem ceeb, ua rau cov kiv cua txias lossis kho lub zog tso zis.
- Environmental Adaptability:Cov pawg them nyiaj sab nraum zoov yuav tsum tiv taus qhov kub thiab txias. NTC sensors pab txhim kho kev them nyiaj tsis zoo raws li cov xwm txheej ib puag ncig (xws li, roj teeb ua ntej hauv lub caij ntuj no txias).
2. Core Zoo ntawm NTC Sensors
- High Sensitivity:NTC tsis kam hloov pauv nrog qhov kub thiab txias, ua kom cov lus teb sai rau qhov hloov pauv me me.
- Compact loj thiab tus nqi qis:Qhov zoo tshaj plaws rau kev koom ua ke rau hauv cov phom phom thiab pawg, muab cov nqi ua haujlwm.
- Stability thiab Durability:Cov ntaub ntawv encapsulation (xws li, epoxy resin, iav) muab cov dej tsis zoo thiab kev tiv thaiv corrosion, haum rau qhov chaw hnyav.
3. Kev txiav txim siab tsim qauv tseem ceeb
- Optimal Placement:Cov sensors yuav tsum nyob ze rau qhov chaw kub (xws li, them phom tiv tauj, IGBT modules hauv pawg) thaum tsis txhob cuam tshuam hluav taws xob.
- Kub Calibration thiab Linearization:Nonlinear NTC cov yam ntxwv yuav tsum tau them nyiaj ntawm circuits (xws li, voltage dividers) los yog software algorithms (lookup tables, Steinhart-Hart equation).
- Redundancy Design:Cov ntawv thov kev nyab xeeb siab tuaj yeem siv ntau lub NTC sensors los xyuas kom meej qhov ua tsis tiav ntawm ib qho tsis cuam tshuam txog kev nyab xeeb.
- Kev sib txuas lus thiab teb Mechanisms:Cov ntaub ntawv kub yog kis tau los ntawm CAN tsheb npav lossis analog teeb liab mus rau Battery Management System (BMS) lossis tus tswj kev them nyiaj, ua rau cov txheej txheem tiv thaiv qib (piv txwv li, txo hwj chim → tswb → kaw).
4. Cov qauv kev lag luam thiab cov kev sib tw
- Daim ntawv pov thawj kev nyab xeeb:Ua raws li cov qauv xws li IEC 62196 thiab UL 2251 rau kev ntsuas kub.
- Kev nyuaj siab heev:Kev ruaj ntseg ntawm qhov kub siab tshaj 120 ° C lossis qis dua -40 ° C yuav tsum tau ua kom cov khoom siv (piv txwv li, tuab-film NTC).
- Fault Diagnostics:Cov kab ke yuav tsum kuaj xyuas NTC tsis ua haujlwm (piv txwv li, qhib circuits) kom tsis txhob muaj kev tiv thaiv cuav.
5. Yav tom ntej Trends
- Kev sib koom ua ke ntse:Ua ke nrog AI algorithms rau kev kwv yees txij nkawm (xws li, kwv yees kev sib cuag degradation ntawm cov ntaub ntawv keeb kwm).
- High-Power Scenarios:Raws li kev them nyiaj ceev ceev (350kW +) tau dhau los, NTCs yuav tsum txhim kho cov lus teb ceev thiab qhov kub thiab txias.
- Lwm txoj kev daws teeb meem:Qee daim ntawv thov tuaj yeem txais PT100 lossis infrared sensors, tab sis NTCs tseem muaj feem cuam tshuam vim qhov txiaj ntsig zoo.
Xaus
NTC kub sensors yog ib qho tseem ceeb ntawm cov saw hlau kev nyab xeeb ntawm EV charging infrastructure. Los ntawm kev saib xyuas lub sijhawm tiag tiag thiab cov txheej txheem teb sai, lawv txo cov kev pheej hmoo ntawm overheating thaum txhim kho kev ua haujlwm. Raws li EV them fais fab txuas ntxiv nce, kev nce qib hauv NTC precision, kev ntseeg siab, thiab kev txawj ntse yuav yog qhov tseem ceeb rau kev txhawb nqa kev lag luam loj hlob.
Post lub sij hawm: Apr-19-2025