What is the use of the EV Relay Coil Yoke in new energy vehicles?

The EV Relay Coil Yoke is a key component in the relays of new energy vehicles, belonging to the field of electronic components and specialized materials. Its core function is to control the circuit's on/off state through electromagnetic engagement, while also possessing characteristics such as heat dissipation and structural support, directly affecting the relay's stability and lifespan. In new energy vehicles, these components must meet stringent conditions such as high-frequency operation and high current-carrying capacity, making them fundamental elements ensuring the safe operation of the vehicle's electrical system.

The Yoke Mount Kit for EV Relay operates on the principle of electromagnetic engagement: when a 9V trigger current is applied to the control electrode, the internal electromagnetic field drives the iron core to move, achieving contact closure or opening. Its main body is made of electric pure iron, possessing high permeability and low remanence, reducing energy loss; the encapsulation material is epoxy resin, possessing insulation, high-temperature resistance, and vibration resistance; the card-type package facilitates integration with the relay housing. Heat dissipation is achieved through an optimized iron core structure, ensuring continuous operation without overheating at a maximum stable operating current of 15A.

Yoke Metal Parts of EV Relays are primarily used in power management and motor control systems of new energy vehicles, such as battery pack charging/discharging, switching, and drive motor start/stop control. Their 50Hz frequency characteristics and soft-feature design (minimal impact when contacts close) match the dynamic requirements of vehicle electrical systems, reducing arcing and contact wear. Both box and cartridge packaging are supported to accommodate the installation space requirements of different relay models.

Compared to traditional relay cores, the Yoke for Electromagnetic EV Relays significantly improves current-carrying capacity (15A) and control accuracy (9V trigger current). Epoxy resin encapsulation extends the component's temperature range to -40℃ to 125℃, adapting to extreme climatic conditions; the cartridge structure uses mechanical snap-fit ​​fixing, reducing welding processes and improving assembly efficiency. Furthermore, the soft-feature design reduces mechanical impact when contacts close, extending the overall relay lifespan to more than 1.5 times that of traditional solutions.

During installation, ensure the iron core and relay coil axes are aligned to avoid misalignment that could lead to poor engagement. Avoid metal dust accumulation in the working environment to prevent affecting electromagnetic performance. Regularly check the contact surface for oxidation; minor oxidation can be cleaned with fine sandpaper, while severe wear requires replacement of the EV Relay Yoke Plate. Before restarting after a long period of inactivity, it is recommended to perform 5 no-load engagement tests to verify the component's response sensitivity.

Our EV Relay Coil Yoke, specifically designed for the new energy vehicle sector, fully meets stringent industry standards. It utilizes high-permeability magnetic pure iron and high-temperature resistant epoxy resin encapsulation, making it suitable for high-frequency, high-current operating scenarios. Its stable magnetic permeability, vibration resistance, durability, and easy installation significantly improve relay lifespan and the reliability of the vehicle's electrical system, perfectly matching the needs of various new energy vehicle relay systems. We welcome customers to inquire about details and place orders at any time. We will provide you with high-quality products and professional services!