Products Description
In the high-voltage DC system of new energy vehicles, relays undertake the critical mission of circuit protection and safety control. As a representative of the core product line of Xiamen Apollo Electric, the Stamping Core for New Energy Relay we supply is an electromagnetic functional component produced through precise material selection, scientific heat treatment processes and strict tolerance control. It directly determines the pull-in speed, holding stability and power consumption performance of the relay, and is an indispensable part of new energy vehicle high-voltage DC contactors, pre-charging relays, main relays and other products.
Relying on more than 20 years of technical accumulation in the low-voltage electrical field of Xiamen Apollo Electric, we have a profound understanding of the core role of relay cores in the electromagnetic conversion mechanism, and are committed to providing high-performance and high-consistency core solutions for the global new energy industry.
Production Process
Precision Leveling & Tension Control of Coil Materials
The EV Relay Core adopts a fully automatic leveling machine to level and relieve stress for electromagnetic pure iron and electrical steel coils, ensuring flatness and uniform internal stress of the sheet. This avoids warping and deformation after stamping from the source and guarantees stable operation of subsequent continuous stamping.
Multi-Station Synchronous Stamping with Progressive Die
The Flat Core for EV Relay uses high-precision multi-station progressive dies to complete multiple processes in one feeding operation, including punching, blanking, bending, forming and shaping. It realizes integrated molding of the core with strong structural consistency and stable dimensions, suitable for high-efficiency mass production.
Stress Relief Annealing in Protective Atmosphere
The Stamping Iron Core Bending Part for EV Relay undergoes low-temperature annealing in a controlled atmosphere furnace to eliminate internal stress caused by stamping, stabilize the magnetic properties of materials, and reduce coercivity and residual magnetism. This ensures cleaner relay pull-in and release, avoiding jamming and delay.
Automatic Full Dimensional Inspection & Appearance Sorting
Key dimensions, flatness, burrs and appearance defects are online inspected via visual inspection and pneumatic measuring instruments, realizing 100% full inspection and sorting. It ensures every Pure Iron Core for EV Relay meets drawing requirements and guarantees zero abnormalities in customer assembly.
Details Display
Strict Parallelism & Perpendicularity Control
The key mating surfaces and attraction surfaces of the New Energy Relay Stamped Iron Core are subjected to precision shaping and closed-loop dimensional control. With stable and reliable parallelism and perpendicularity, it effectively reduces fluctuations in the magnetic circuit air gap, ensures consistent relay actuation force and error-free operation, and improves the overall stability of the unit at the structural source.
High Precision for Automated Assembly
The New Energy Relay Stamping Core Assembly features specially optimized accuracy for inner holes, positioning slots and reference edges to suit automated feeding, automatic pin insertion, automatic riveting and other assembly line scenarios. With clear positioning references and reasonable fitting clearance, it enables smooth feeding without jamming, greatly improving customers' automated production efficiency.
Defect-Free Stamping & Forming
The stress state of the material is strictly controlled throughout the entire process from stamping, forming to heat treatment, eliminating hidden defects such as surface scratches, hidden cracks and folds. This ensures the EV Relay Stamped Core does not fail under long-term vibration, thermal cycling and electromagnetic impact, meeting high-reliability requirements for automotive and energy storage applications.
Uniform Anti-Corrosion Treatment
The New Energy Automotive Relay Stamping Core adopts uniform, thin and strongly adhesive anti-rust/passivation treatment. The coating is dense, free of missing plating or sagging, without affecting dimensions and assembly. It also provides excellent moisture and oxidation resistance, adapting to complex environments such as long-distance ocean transportation and hot and humid storage, with no deterioration during long-term storage.
Application Fields
NEV High-Voltage Power Distribution
Stamping Core Used in New Energy Relay mainly used in on-board main relays, charging relays, BDU/PDU modules and battery pack circuits. It ensures a stable magnetic circuit and reliable operation under high-voltage and strong-vibration environments, meeting automotive-grade long-life and high-safety requirements.
Energy Storage HV DC Contactors
Stamped Soft Iron Core for NEV Relay is suitable for 1500V high-voltage circuits, cluster control switches and grid-connection/disconnection switching devices in energy storage systems. Featuring low iron loss, low temperature rise and magnetic aging resistance, it guarantees long-term stable operation of relays in high-power charging and discharging scenarios.
PV & Industrial HV Protection
Stamping Core for New Energy Relay is applied in photovoltaic combiner boxes, inverters, UPS power supplies and industrial high-voltage protection relays. With low loss, fast response and high consistency, it adapts to long-term continuous operation and complex industrial environments.
Contact Us
If you have any requirements concerning the procurement, selection, sample request, or customization of Stamping Core for New Energy Relay, or if you wish to obtain further information regarding product details, please do not hesitate to contact us. We will deploy a professional team to provide personalized one-on-one service, develop customized adaptation solutions, and guarantee stable supply, precise selection, and efficient procurement processes.
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