* Raws li SEO tus kws tshaj lij hauv kev lag luam hluav taws xob, Kuv tau txiav txim siab ua kom muaj lub cav 125 Degration - nrog cov cuab yeej siv hluav taws xob siab tshaj plaws los ntawm TDK thiab-ntiaj teb EV cov haujlwm. *
🔥 Lub 125℃kev teeb meem hauv cov khoom siv hluav taws xob hauv tsheb
Peb qhov tsis ua hauj lwm tsis ua tiav cov qauv Plague Transformue tshuab hauv lub cav Bays:
Txoj kev ua haujlwm tseem ceeb
Ntawm 125 degree, bs (saturation flux ntom) poob rau70% of room-temperature value → inductance collapses >20%
Epoxy tawg
CTE tsis sib haum: tooj (18pm / degree) vs epoxy (60ppm / degree) → delamination kev pheej hmoo ↑ 300% ntawm thermal poob siab
Tooj liab tev-off
Creep stress >5MPA nyob rau hauv kev co-kub kev co → Winding cuam tshuam spikes
Vim li cas cov qauv tsim swb swb:
Txheem ferrites (e . g {}}}}}}}}}}}}}}
Silicone potting cracks at >150 DEGURRUR THO KAWG KCLAL CYCLES → COONANE CAV TAWM HAUV DEJ-TXIAS SOV TSHUAB
🛡️ Txoj Cai 1: Cov Khoom Siv Khoom Siv & Cov Qauv Tsim Kho
Cov Khoom Siv Khoom Taw Qhia Tseem Ceeb (100kHz / 200Mt)
| Khoom | Poob @ 25 degree | Poob @ 125 degree | Curie temp | Nqi Them Nqi |
|---|---|---|---|---|
| PC95 | 1.14w /M³ | 1.14w /M³ | 220 degree | +15% |
| PC47 | 0.98W /M³ | 1.30W /M³ | 210 degree | Lub hauv paus |
| Nanocrystalline | 0.45W /M³ | 0.48w /M³ | 560 degree | +40% |
Tau qhov twg los: Tdk Cov Khoom Siv Datasheet 2022
Epoxy Innovation:
Nano-al₂o₃ muab tub lim: Boosts thermal conductivity los ntawm 0.2 → 1.8w / mk
Theem kauj ruam: 50℃→ 120℃→ 150 qib (1h txhua) txo cov npuas<0.1%
❄️ Txoj Cai 2: Thermal Txoj Kev Tsim Qauv
PCB-qib kev kub hnyiab
Tawv Txias Kev Sib Xws:
Microchannel Kua Txias Phaj:
Contact pressure >20kpa → Thermal Kuj<0.05℃/W
Txaus tus nqi 2m / s ua tiav 15℃kub poob
Phase-Hloov Cov Khoom Siv (PCM):
Hlau-Enhanced Paraffin (K =8 w / mk) nqus 200j / g thaum igbt surges
📊 Txoj Cai 3: Smart Xyuas & Qauv Siv Tau
Embedded NTC Sensors:
Faus rau hauv cov windings thib ob ← ± 3% tseeb
Triggers frequency throttling when T>110 degree
Fea simulation workflow:
| Simulation Hom Phiaj | Raj | Txoj kev siv tau |
|---|---|---|
| Kev hloov pauv cua sov | Ansys IcePak | IR Thermography |
| Kev ntxhov siab thermal | Comsol multiphysics | Xoo Ray Void Nrhiav tau |
| Kev twv ua neej lub neej | Arrhenius qauv | 1, {000 h damp kub kuaj |
⚡ Kev Kawm Kev Kawm: 48v Me-Hybrid DC-DC Converter
Ua tsis tiav hom: Kev ua tau zoo rau 88% @ 125℃nrog PC47 core
Lus teb:
PC95 Core + 2} Tooj liab windings
PCM {-8 f Pase-Hloov cov khoom ntawm Bodelplate
Qho kawg:
93.2% Efficiency @ 125 Degree
Dhau ISO 16750-4 kev xeem (10-500 hz random)
Nqi nce nce: 18% → offset los ntawm 30% kev pab cuam ntev
🚀 Yav Tom Ntej Tech: dhau Epoxy & Tooj Liab
Aln Ceramic substrates:
Thermal conductivity >170W / MK (9 × siab dua epoxy)
3D-printed ntxaij cores:
50% txo qhov hnyav + 2 × caj thaj tsam rau kev ntseeg
Ai-tsav thermal tswj:
Real-Time Kev Ua Ntej Ua Ntej RECTIONS Fynamic Purcomency Hloov Kho