Electromagnetic Relay Yoke Frame
Products Description
During the operation of an electromagnetic relay, the Electromagnetic Relay Yoke Frame generates a magnetic field when energized, and the yoke is responsible for constructing a complete magnetic flux loop.
Its main functions include:
forming a closed magnetic circuit
concentrating and conducting magnetic flux
improving electromagnetic conversion efficiency
supporting the installation of the electromagnetic mechanism
fixing the coil and moving parts
enhancing the overall structural strength
improving the reliability of relay operation
Essentially, the yoke is both a magnetic functional component and a mechanical structural component, serving as a crucial bridge connecting the electromagnetic system and the mechanical actuator.
Production Blueprint
Precision High-Speed Slitting and Feeding
Raw materials undergo precision leveling to ensure no waviness and eliminate initial internal stress.
01
Progressive Die Cold Stamping
Complex three-dimensional skeletons are formed within a precision high-speed stamping press.
02
Deburring and Precision Polishing
Fluid polishing or non-destructive drum polishing processes are used to thoroughly remove microscopic burrs from edges, preventing them from detaching during subsequent assembly and causing relay jamming.
03
Vacuum Magnetic Property Annealing
A core process that activates excellent soft magnetic properties through precise heating, holding, and controlled-speed cooling curves.
04
High Corrosion-Resistant Surface Treatment
Environmentally friendly chemical nickel plating or special high-temperature resistant electroplating is used, resulting in uniform thickness and preventing hydrogen embrittlement for Relay Yoke Stamping.
05
Design Advantages: Topology Optimization Eliminates Magneto-Mechanical Blind Spots
Topological Smoothing at Magnetic Circuit Corners
Traditional right-angle bends cause extreme magnetic flux congestion at corners, resulting in local magnetic saturation and eddy current losses. Our Pure Iron Relay Yoke Plate uses a large radius angle for smooth transitions at the inner corners of bends, greatly reducing magnetic resistance at corners and increasing output attraction within the same volume.
Self-Centering Microstructure of the Armature Pivot
Micron-level V-shaped guide and positioning grooves are designed at the knife edge or shaft hole, where the Precision Relay Yoke Metal Stamping Parts support the armature. This design not only ensures the linearity of armature movement but also allows it to automatically return to center after multiple impacts, eliminating contact overtravel caused by lateral movement.
Riveting Blind Holes and Stress Relief Grooves
Stress relief ring grooves are designed around the yoke riveting holes for the iron core pressing process. When the iron core is forcefully expanded and pressed in, the material flows into the annular groove, preventing the riveting stress from being transmitted to the back of the Electromagnetic Relay Yoke Frame and causing overall warping, thus ensuring the absolute flatness of the assembly surface.
Application Advantages: Reliable Base for Harsh Working Conditions in Multiple Scenarios
| Automotive Relay Applications | In the high-temperature, high-vibration environment of the engine compartment, our Yoke for Electromagnetic Relay, thanks to its high-strength soft magnetic material and stress-relief design, not only withstands severe road impacts without deformation but also maintains stable magnetic permeability at 150℃, ensuring that the relay will never malfunction or fail to operate during vehicle startup. |
| High-Power Industrial/Photovoltaic Relays | In scenarios involving disconnection of tens or even hundreds of amperes, contact bounce and arcing are fatal threats. Our Yoke Metal Parts of Relays, through precise matching of attraction characteristics, provides the contacts with an extremely high initial velocity attraction impact, quickly overcoming the arcing zone; simultaneously, the large cross-sectional area design effectively dissipates the Joule heat generated by high currents, preventing thermal runaway of the coil and frame. |
| Signal-Grade Safety Relays | In high-speed rail and nuclear power control systems, the consistency requirements for relay operating voltage are extremely stringent. The extremely low coercivity resulting from our annealing process eliminates the operating voltage drift caused by hysteresis, ensuring that the operating boundaries of tens of thousands of relays are as precise as a copy throughout their lifespan. |
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Whether it's new Sheet Metal Relay Yoke development or upgrading the performance of existing relays, we can provide engineering support from material selection, magnetic circuit structure optimization, precision mold development, to large-scale production, helping your projects complete verification and achieve stable mass production faster.
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