EV Alumina Ceramic Housing
Products Description
The EV Alumina Ceramic Housing is a key internal insulation component of high-voltage direct current (HVDC) contactors for new energy vehicles. It is primarily used for the insulation encapsulation of the arc-extinguishing chamber, arc isolation area, and high-voltage conductive system. The product utilizes a high-purity alumina ceramic matrix and is manufactured through precision molding, sintering, metallization, and post-processing. It meets the requirements of high insulation strength, high-temperature stability, and long-term reliability for new energy vehicles, energy storage systems, battery management systems (BMS), charging equipment, and high-voltage power distribution systems.
In high-voltage direct current systems, contactors need to withstand arcing caused by frequent switching, high-temperature shocks, mechanical vibrations, and complex environmental stresses. Compared to engineering plastics or ordinary ceramic materials, the Metallization of Alumina maintains stable dielectric properties and structural integrity under long-term high-voltage and high-current conditions, making it a crucial fundamental component for achieving highly reliable arc-extinguishing designs in HVDC contactors.
Key Selling Points
High-Purity Alumina Insulation System
Utilizing Alumina Metallized Ceramics materials, it possesses excellent volume resistivity, dielectric strength, and arc resistance, meeting the continuous upgrade needs of high-voltage platforms in new energy vehicles.
Reliable Metallization Interface Connection
Achieving highly reliable connections between ceramics and copper, nickel, and stainless steel components through mature Alumina Metallization technology reduces the risk of interface failure during thermal cycling.
Long-Term Stability in Extreme Environments
Suitable for complex operating conditions such as high temperature, high humidity, thermal shock, and salt spray vibration, maintaining dimensional and insulation stability during long-term operation.
Consistency Control for Mass Manufacturing
Employing standardized process routes and process quality control systems ensures consistent performance of Alumina Metallized Ceramics for Bonding products during mass delivery.
Product Details and Features
Cavity Rib Details
The EV HVDC Relay Ceramic Housing features a one-piece molded, irregularly shaped insulating rib. This optimizes the contact cavity space layout and restricts the arc diffusion range, a key structural design feature preventing contact breakdown in the track switch.
Metal Insert Details
Exposed conductive copper pillars are cold-forged and precision-machined. High-conductivity T2 copper is used. The base of the copper pillars is bonded to the ceramic cavity using Alumina Metallized Ceramics for Bonding, ensuring a weld layer free of porosity and defects, and providing sufficient strength for frequent mechanical vibration conditions.
Edge Sealing Structure Details
The outer metal edging of the Alumina Metallized Ceramics frame is precision-stamped and sealed with the ceramic metallized surface, improving the overall airtightness of the cavity and preventing moisture and dust from entering the contact cavity.
External Tolerance Details
The ceramic outer contour and mounting reference surface are precision-ground. Key assembly dimensional tolerances strictly adhere to customer relay housing drawings, ensuring compatibility with automated press-fit equipment.
Product Application Advantages
Technological Compatibility: Metallized Ceramics for Electrical Components are specifically designed for HVDC contactors, adapting to high-voltage systems in new energy vehicles, ensuring a perfect balance between electrical performance and mechanical strength.
Long-Term Reliability: Employing Alumina Ceramic Parts Precision Machining ensures long-term stable operation in extreme environments.
Manufacturing Consistency: Leveraging 30 years of experience in the electrical industry within the group company, and with certifications such as ISO9001-2015 and IATF16949, Metallized Ceramics for Electrical achieves high batch-to-batch performance consistency.
contact us
For further technical details or to obtain EV Alumina Ceramic Housing samples, please contact our technical team for in-depth discussions to jointly promote technological advancements in the field of new energy power electronics.
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