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Modèle: Battery System
marque: HTD
Origin: CHINE
Lieu d'origine: CHINE
Positionnement du produit :
La barre omnibus composite de pontage interne du module HTD est un composant conducteur composite clé responsable de la connexion croisée précise et de la collecte de courant entre les cellules de batterie individuelles au sein d'un module de batterie de puissance. Utilisant une structure composite cuivre-aluminium (avec un rapport volumique de couche de cuivre de 15 % à 25 %), il réalise des connexions série-parallèle multicellulaires dans un espace confiné, combinant une conductivité de surface élevée, des propriétés de légèreté et une résistance au fluage. La technologie composite de collage par rouleau de précision assure une liaison métallurgique à l'interface cuivre-aluminium, garantissant une résistance interfaciale ≥ 30 MPa et des performances fiables dans des conditions d'expansion du cycle cellulaire. Il s’agit d’un élément essentiel pour améliorer la densité énergétique des modules et la fiabilité des connexions.
Paramètres de performance clés de la barre omnibus cuivre-aluminium :
| Category | Specific Parameters | Test Standard |
| Composite Material Structure | Copper layer volume ratio: 15%-25% (adjustable); Density: 3.2-3.8 g/cm³ | Customer Spec / ICP-AES |
| Electrical Conductivity | DC Resistivity: ≤ 0.028 Ω·mm²/m; Carries 80%-85% of the current of a solid copper busbar of equivalent size. | GB/T 5585.1 |
| Rated Current |
Continuous Current: 60A–400A (custom length); Temperature Rise: ≤ 30K (@25°C ambient) |
Thermal Simulation Validation |
| Mechanical Properties | Tensile Strength: ≥ 85 MPa (Annealed); Bending Fatigue Life: >1000 cycles | ASTM E8 |
| Interfacial Bond Strength | Cu-Al Interface Shear Strength: ≥ 30 MPa; Peel Strength: ≥ 50 N/cm | Enterprise Standard |
| Insulation & Withstand Voltage |
Optional Insulation Coating; Withstand Voltage: ≥ 2500V AC (50Hz, 60s); Protection Class: IP67 | ISO 20653 |
| Operating Temperature |
-40°C ~ +105°C (Long-term); Short-term Withstand: 150°C | IEC 60068-2-14 |
| Dimensional Accuracy |
Mounting Hole Position: ±0.1 mm; Flatness: ≤ 0.15 mm/m | CMM Inspection |
| Step | Core Process | Key Technical Points | Output Standard |
| 1 | Composite Material Preparation | Cu-Al bimetal roll-bonding, online bright annealing | Interface shear strength ≥35MPa, no oxides |
| 2 | Precision Stamping/Bending | Multi-station progressive die processing, integrated anti-crack fillet design | Dimensional tolerance ±0.15mm, Cu layer wrinkle-free |
| 3 | Micro-Arc Forming | Servo bending, precise arc control | Plating thickness ≥5μm, cut surface insulation resistance ≥100MΩ |
| 4 | Connection Treatment | Laser welding / Resistance crimping | Withstand voltage ≥2500V AC |
| 5 | Insulation Coating | Nano-coating electrostatic spraying | Current rating, interface integrity verified |
| 6 | Comprehensive Testing |
Resistance, insulation, cycle testing |
Defect rate ≤0.01% |
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