Products Description
In the high-voltage system of electric vehicles, relays serve as key electronic control components that are directly related to the safety and system stability of the entire vehicle. As the core magnetic circuit structure in the electromagnetic system, the relay yoke's material performance, machining accuracy, and consistency exert a decisive influence on pull-in efficiency, response speed, and long-term reliability.
The EV Relay Yoke Pure Iron Plate is a functional structural component specially developed for the magnetic circuit system of new energy vehicle relays. Made of high-purity soft magnetic iron-based materials and manufactured through stable stamping and post-processing technologies, it is suitable for application environments requiring high current, high frequency, and high reliability.
Core Product Advantages
The magnetic permeability of the Yoke Mount Kit for EV Relay is more than 1.3 times that of ordinary low-carbon steel. It can generate stronger magnetic induction intensity under the same current excitation, which significantly improves the operating speed of the relay. Its low hysteresis loss characteristic reduces energy loss during magnetic energy conversion, enhances the response efficiency and service life of the relay, and meets the core requirement of high-frequency response for electric vehicle power systems.
After high-temperature annealing and special heat treatment, the internal stress of the Yoke Metal Parts of EV Relays is completely eliminated, and its impact resistance is significantly enhanced. It can withstand the strong impact force generated when the coil is excited, preventing magnetic circuit failure caused by yoke plate deformation. The pure iron material has excellent high-temperature resistance, which can maintain stable magnetic properties even in a high-temperature environment of 150℃, avoiding the decrease of magnetic permeability caused by temperature rise, and ensuring the reliable operation of the relay under complex working conditions of the whole vehicle.
The asymmetric special-shaped magnetic circuit design (such as magnetic ring shape and inverted T-shape) of the Yoke for Electromagnetic EV Relay maximizes the magnetic flux path, reduces magnetic leakage and energy loss in the magnetic circuit, and improves the utilization rate of magnetic energy. Meanwhile, precise stamping forming ensures the coaxiality and flatness of the magnetic circuit, guarantees uniform magnetic field distribution, and further optimizes the operation consistency and stability of the relay.
We support full-specification customization from traditional U-shape and E-shape to special asymmetric magnetic circuits, and can carry out precise processing according to customers' drawings of the Yoke Metal skeleton for EV Relay. We provide pure iron materials of different purity levels and surface protection processes to meet the needs of different power levels and vehicle-mounted environments, and offer accurate magnetic circuit solutions for customers.
Production Process
High-purity Material Selection
The EV Relay Yoke plate is made of special pure iron or silicon steel sheet with a purity of over 98% as raw materials. Impurities are removed through spectral analysis to ensure the consistency and stability of magnetic properties. For high-power scenarios, higher-purity pure iron materials can be selected to improve magnetic permeability and anti-attenuation performance further.
Precision Stamping Forming
The Yoke Mount Kit for EV Relay is cut into specific shapes by high-precision stamping equipment to adapt to the complex magnetic circuit structure of EV relays. The yoke plate is usually designed into an asymmetric special shape (such as a magnetic ring shape, an inverted T-shape) with a dimensional tolerance of ≤±1mm, ensuring the accuracy of the magnetic flux path.
Heat Treatment and Demagnetization
After stamping and forming, the yoke plate is subjected to high-temperature annealing to eliminate internal stress generated during the stamping process. This step is crucial for ensuring the impact resistance of the Yoke Metal Parts of EV Relays. Then, the demagnetization treatment is carried out to avoid a residual magnetic field affecting the magnetic circuit efficiency and ensure the stability of magnetic properties.
Surface Protection and Inspection
According to customer requirements, the surface of the Yoke for Electromagnetic EV Relay can be treated with spraying, anodizing, or metal electroplating to prevent corrosion and improve aesthetics. Before delivery, the product must pass the magnetic permeability test, impact resistance test, and high temperature resistance test to ensure that both magnetic and mechanical properties meet the new energy vehicle industry standards. Unqualified products are directly rejected, with the yield rate reaching 99.8%.
Why Choose Us
Technological Accumulation and Process Barriers in the New Energy Electrical Field
We have been deeply engaged in the low-voltage and new energy electrical component field for more than 20 years. Our core technical team comes from leading enterprises in the relay industry, with over 30 years of R&D experience in magnetic circuit components. We have independent technological barriers in core processes such as magnetic permeability control and stress relief for the Yoke Metal skeleton for EV Relay. Our product design is fully based on the actual requirements of on-board high-voltage scenarios, rather than a simple adaptation of general-purpose components.
Quality Controllability Through Full-Process Vertical Integration
We possess a complete independent production line covering high-purity pure iron material selection, precision stamping forming, high-temperature heat treatment, and finished product inspection, with no outsourcing links in the entire process, thus fundamentally eliminating quality fluctuations. Through multi-dimensional testing methods, including spectral analysis, magnetic permeability testing, and impact resistance testing, we ensure the performance consistency of each batch of EV Relay Yoke plate, with the yield rate stably maintained above 99.8%, far exceeding the industry average level.
Precise Adaptation Capability with In-depth Customization
We support full-chain customization services from magnetic circuit structure design to finished product delivery. According to the relay magnetic circuit drawings provided by customers, we can accurately process various structures of the Yoke Mount Kit for EV Relay, such as U-shaped, E-shaped, and special-shaped types. Meanwhile, we offer customized options for pure iron materials of different purities and surface protection processes, meeting the personalized requirements of different power.
Full-Cycle Technical Support and Cost Reduction & Efficiency Improvement Services
In addition to providing qualified Yoke Metal Parts of EV Relays products, we can also dispatch engineers to participate in the customer's early-stage magnetic circuit design, offering professional suggestions on material selection and structural optimization to help customers improve magnetic circuit efficiency and reduce energy consumption. Meanwhile, we provide services such as free sample testing and process parameter guidance, assisting customers in completing product verification and batch switching, and achieving dual optimization of performance and cost.
Global Delivery and Strict Quality Certification Assurance
Our products have obtained IATF16949 automotive industry quality system certification, as well as RoHS and REACH environmental protection certifications, complying with the supply chain standards of mainstream global new energy vehicle manufacturers. We have global logistics and delivery capabilities: free samples of EV Relay Yoke Pure Iron Plate can be delivered within 1–2 days, new mold samples (including new mold development and sample production) within 20–30 days, and bulk orders within 15–20 days (after order confirmation and payment). We also provide a 1-year quality guarantee, with free replacement or refund for quality-related issues, offering customers a worry-free procurement experience.
Contact Us
If you have any requirements concerning the procurement, selection, sample request, or customization of EV Relay Yoke Pure Iron Plate, 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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