As the automotive industry rapidly shifts toward electrification, electromagnetic compatibility (EMC) has become one of the most critical performance factors for new energy vehicles (NEVs). High-voltage systems—such as battery packs, power distribution units, and electric drive systems—generate significant electromagnetic interference (EMI), which can affect signal transmission, sensor accuracy, and even safety functions.
Jingu Auto Parts Co., Ltd. (GVEI), a professional manufacturer of automotive terminals and wire harness components, provides advanced EMC shielding solutions for high-voltage system terminals, ensuring stable performance, safety, and reliability across a wide range of EV applications.
The Importance of EMC Shielding in New Energy Vehicles
High-voltage systems in NEVs typically operate between 400V to 800V, generating strong electromagnetic fields. Without proper shielding, EMI can interfere with vehicle control units, communication systems, and other sensitive electronic components.
Effective EMC shielding for terminal connections prevents these interferences by minimizing radiation and improving signal integrity, especially in high-speed data transmission and power circuits.
For manufacturers, reliable EMC performance is not only a technical requirement, but also a regulatory and quality standard essential for meeting global automotive compliance such as ISO 11452, CISPR 25, and IEC 61967.
GVEI’s EMC Shielding Design for High-Voltage Terminals
At GVEI, EMC performance is engineered from the ground up—starting from material selection, structural design, and production precision. Each high-voltage terminal solution integrates multiple layers of shielding to achieve excellent conductivity and minimal signal loss.
- Shielding Material Selection
GVEI utilizes copper, copper-tin alloy, and nickel-plated copper materials with high conductivity and corrosion resistance. These materials not only reduce electromagnetic leakage but also ensure long-term stability in harsh automotive environments, including high temperatures and vibrations.
- 360° Shielding Structure
To ensure complete coverage, GVEI designs terminals with 360-degree shielding shells that integrate seamlessly with the high-voltage connector housing. This provides consistent protection from both radiated and conducted EMI, effectively isolating noise sources.
- Precision Manufacturing and Crimping Technology
With advanced stamping, forming, and crimping technologies, GVEI maintains tight tolerances that ensure consistent contact pressure and low impedance. This mechanical precision enhances both electrical continuity and shielding effectiveness across the entire harness system.
- Multi-Layer Shield Integration
In addition to terminal shielding, GVEI supports multi-layer EMC strategies, including braided wire shielding, foil wrapping, and conductive gasket interfaces. These solutions can be customized based on vehicle platform requirements and voltage levels.
Applications in High-Voltage Systems
GVEI’s EMC-shielded terminals are widely used in:
- Battery Management Systems (BMS)
- High-Voltage Junction Boxes (HVJB)
- Inverters and DC/DC Converters
- Onboard Chargers (OBC)
- Electric Drive Motor Connections
These terminals maintain low contact resistance, high shielding efficiency, and thermal stability, ensuring that electric vehicles operate smoothly under high load and high-frequency conditions.
Continuous Improvement and Data Traceability
As part of its commitment to quality, GVEI adopts a continuous improvement system supported by digital manufacturing and data traceability. Each terminal and connector undergoes:
- 100% visual and electrical inspection
- Shielding effectiveness testing
- Thermal cycling and vibration tests
Through a comprehensive traceability platform, production data—including raw material batch numbers, process parameters, and inspection results—are recorded in real-time. This ensures that every EMC shielding terminal can be traced back to its production source, offering full transparency and quality assurance to customers.
Customized EMC Shielding Solutions
Recognizing that every NEV manufacturer has unique EMC design requirements, GVEI provides custom-engineered solutions. Its R&D team collaborates closely with OEMs and Tier-1 suppliers to develop tailored terminal geometries, plating options, and shielding layouts optimized for specific voltage and current conditions.
With in-house tooling design and rapid prototyping capabilities, GVEI can quickly deliver optimized EMC terminal solutions that reduce development time and cost for vehicle manufacturers.
About GVEI
Jingu Auto Parts Co., Ltd. (GVEI) specializes in automotive terminals, connectors, and wire harness systems, serving global OEMs and Tier-1 suppliers. With advanced manufacturing facilities and a strong focus on quality, innovation, and customer service, GVEI delivers high-performance solutions for the next generation of new energy vehicles.
For more information or technical consultation about GVEI’s EMC shielding solutions for high-voltage system terminals, please contact:
📧 Email: alltrade@gvei.com
🌐 Website: www.gvei.com
☎️ Phone: +86 15058771812
