High Voltage DC Ceramic Contactor
Products Description
Our High Voltage DC Ceramic Contactors are designed for high-voltage (1000V DC+) and high-current environments. Utilizing advanced vacuum brazing and precision stamping processes, the products exhibit excellent electrical insulation and weld resistance under extreme electrical stress.
Core Applications:
Passenger and Commercial Vehicle BMS: Main circuit contactors, pre-charge contactors, and fast-charging systems.
Energy Storage Systems (ESS): Battery cluster management and grid connection control switches.
DC Fast Charging Stations: Ensuring rapid and safe disconnection during charging.
Photovoltaic Inverters: Load Switching and Protection on the High-Voltage DC Side.
Manufacturing Advantages: Bridging the Gap from Prototype to Million-Unit Mass Production
Precise Control of Ceramic Sintering Shrinkage
Metallization of alumina exhibits significant shrinkage during sintering. Through dozens of iterations of precursor powder gradation and sintering curves, we control shrinkage fluctuations within an extremely small range, ensuring that the CPK values of key dimensions in ceramic parts remain consistently high during mass production.
End-to-End Quality Closed-Loop and Traceability
Every batch of powder, every sintering curve, and every sealing component has an independent QR code for traceability. From Alumina Metallized Ceramics for Bonding pressure testing and helium leak detection in sealing to full inspection of contact resistance and dimensional tolerances of contacts, we ensure that no potential problems flow into the next process.
Modular Flexible Production Line
Our production line possesses rapid changeover capabilities for contactor parts of different specifications (e.g., 150A, 250A, 500A), achieving a smooth transition from multi-variety, small-batch to large-batch production while maintaining automotive-grade quality standards.
Design Advantages: Engineering Efficiency-Oriented
Modular Interface DesignThe
metallization of alumina ceramics design fully considers the gripping and positioning needs of automated assembly lines, reducing assembly error rates.
Anti-collision and Mistake-Proof Structures
Integrating minute features during the stamping die stage ensures directional uniformity during assembly within the complex contactor interior.
Simulation-Driven Optimization
Each Metallized Ceramics For Electrical undergoes electric field distribution simulation and thermal stress analysis before production, preemptively eliminating high-voltage breakdown points and heat dissipation bottlenecks.
Application Advantages: Covering all scenarios of new energy high-voltage DC systems
EV/HEV Main Circuit Contactor
450V/900V systems, rated current 200A~500A, short-circuit breaking capacity 2000A@450V. Our tungsten copper contact components have passed over 1000 short-circuit breaking tests by multiple automakers.
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DC Charging Pile Module Output Terminal
Frequent switching (hundreds of times per day) requires AgSnO₂ contacts and strong magnetic blow-out components to ensure 50,000 electrical cycles.
02
BESS (Built-in Energy Storage Box)
1500V DC systems require a high-insulation EV Alumina Ceramic Housing shell (creepage distance > 20mm) and low leakage rate sealing. We provide customized ceramic shapes and dual-cavity isolation designs.
03
PV String Shutdown and Combiner Box
Outdoor environments require resistance to salt spray and condensation. A hydrophobic High Temperature Metallized Ceramic Relay Case surface with a coating achieves a C5 corrosion resistance rating.
04
Industrial frequency conversion and hydrogen energy DC-DC
Under high-frequency vibration conditions, the moving guide rod needs to be designed to resist lateral displacement. We use an extended guide bearing sleeve and harden it.
05
contact us
We not only provide EV Alumina Ceramic Relay Housing manufacturing, but also offer integrated engineering support based on our customers' contactor structure, arc system, and new energy application needs. This support ranges from ceramic material selection and structural optimization to mass production implementation, helping projects achieve more stable and safer high-voltage system solutions.
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