Flat Iron Core For Automotive Relay
Products Description
Unlike traditional blocky magnetic cores, Flat Iron Core for Automotive Relay favors a flatter, more compact magnetic circuit structure design, making it more suitable for the limited space inside high-voltage relays in new energy vehicles.
The products typically feature the following structural characteristics:
Flat magnetic circuit design
High-permeability contact surface structure
Precision hole and assembly positioning structure
Multi-bend integrated molding structure
Optimized high-frequency magnetic conduction path
Miniaturized magnetic circuit layout
This structure not only effectively improves magnetic flux utilization but also helps reduce the overall size of the relay, meeting the miniaturization design requirements of high-voltage control systems in new energy vehicles.
Technical Features
Magnetic Circuit Optimization
The flat geometric design combined with high-purity materials reduces magnetic reluctance, improves magnetic flux density uniformity, and reduces energy loss.
Enhanced Dynamic Response
Low coercivity and low eddy current characteristics enable faster magnetic field establishment and decay, suitable for the rapid switching of high-voltage relays.
Anti-interference Capability
Special grain orientation control technology effectively suppresses the impact of external vibrations and temperature fluctuations on magnetic performance.
Thermal Stability
Precision Stamping EV Relay Core can maintain stable magnetic parameters within a harsh temperature range of -40℃ to +150℃, adapting to the environment around engine compartments or battery packs.
Details Showcase & Meticulous Craftsmanship
Exquisitely Smooth Assembly Surfaces
The working surfaces in contact with the armature are precision-ground to a micron-level flatness, ensuring true "zero-air-gap" contact during engagement to provide maximum holding force.
Smooth Chamfers and No Sharp Corners
All geometric external corners are rounded or micro-chamfered, ensuring no scratches to the coil frame or insulation layer during automated winding or insertion, effectively preventing localized short circuits.
Digital Traceability
For mass-produced products, micro-laser markings can be applied to non-working surfaces upon customer request, achieving full lifecycle traceability from raw material furnace number and annealing batch to factory inspection results.
Application Advantages: Empowering the 800V High-Voltage Architecture of New Energy Vehicles
| Perfectly Matching High-Voltage DC Arc Extinguishing Requirements | With the upgrade from 400V to 800V and even 900V, extinguishing high-voltage DC arcs is extremely difficult. The strong and instantaneous attraction and release speed provided by the flat iron core are prerequisites for magnetic blowout arc extinguishing technology. It ensures that the contacts separate with extremely high acceleration at the moment of arc ignition, giving the arc sufficient initial elongation length, ensuring that the relay does not experience contact welding under extreme overload conditions. |
| Structural Reliability in High-Vibration Environments | New energy vehicles experience continuous high-frequency vibrations during operation. Due to its low center of gravity and large support surface design, combined with extremely low remanent magnetization retention force, the Pure Iron Flat Core for EV Relay will not generate resonance noise caused by magnetostriction under vibration conditions, nor will it cause malfunctions due to microscopic changes in the magnetic circuit air gap caused by vibration. |
| The Ultimate Safety Anchor for the Main Drive and Fast Charging Circuits | Whether it's the vehicle's main drive inverter circuit or the high-power DC fast charging circuit, the relay is the last physical safety switch. The stable magnetic circuit performance of the Stamped and Formed Relay Core enables the BMS system to accurately and quickly cut off the high-voltage power supply, protecting the absolute safety of occupants and the battery pack in extreme crisis moments such as collisions and short circuits. |
contact us
We not only provide standard Stamped Flat Pure Iron Core for EV Relay products, but also offer integrated engineering and manufacturing support, from material selection and magnetic circuit optimization to precision mass production, based on the magnetic circuit structure, assembly process, and platform requirements of high-voltage relays for new energy vehicles. This helps customers more efficiently complete the introduction of new energy projects and achieve long-term stable mass production.
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