Currently on the market common high-current terminals are: European terminal series, plug-in terminal series, fence terminal series, spring-type terminal series, rail terminal series, through-wall terminal series, Optocoupler terminal series. . and many more High-current terminals more and more powerful product features and comprehensive, the connector made a higher and more diverse needs, such as the transfer rate of electronic equipment is getting higher and higher, in order to meet the large flow of data transmission and exchange, On the connector proposed high-speed transmission and digital transmission requirements. However, in order to save space and reduce the size of equipment, more and more signals, such as microwave signals, optical signals, high-voltage signals and power signals, need to be integrated into the same connector and require independent transmission between signals Not interfere with, which determines the integrated signal connector development trend will be more and more obvious. The market for connector concentration and the need for the trend of miniaturization, prompting terminal technology innovation. Semiconductor chip technology is becoming a technology driver for the development of connectors at all levels of interconnection, for example, with the fast 0.5-mm-pitch chip package growing to 0.25-mm pitch, enabling Class I interconnects (internal to IC devices) and class II interconnects And the board of the interconnection) the number of pins of the device from the hundreds of lines up to thousands of lines. Press-fit contact technology is commonly used in cylindrical slotted jacks, spring stranded pins, and hyperboloid wire spring jack connectors, which greatly improves the reliability of the connector and ensures the high fidelity of signal transmission. As a manufacturer of high-current terminal manufacturers, Sanmen Bay in Nanjing constantly develops and researches new technologies in order to increase its core competitiveness and meet the application needs of the market. Faced with fierce competition in the terminal market, Nanjing Sanmenwan Electronic Brand Confident of the terminals firmly believe that only scientific management, strict quality control, continuous improvement in order to obtain customer acceptance. The high-current terminal technology makes the connector form a new connector product, that is, the push-in connector, which is mainly used for system-level interconnection. Its biggest advantage is that it does not need a cable and is easy to install and disassemble, With speed, smooth and stable separation, access to good high-frequency characteristics, suitable for spacecraft. Connector assembly technology is from plug-in installation technology to surface mount technology development, and the future trend is to micro-assembly technology development, the use of MEMS will be to improve the connector technology and cost-effective power. The so-called terminal system task is to conduct mechanical and electrical wire reliable connection. The use of crimping terminal blocks can effectively achieve this function. The crimping frame is made of hardened and zinc-passivated steel, and steel bolts that withstand large torques hold the wire firmly. Copper-plated conductive sheet coated with a flexible tin-lead alloy, to ensure that with the wire to maintain airtight, low resistance, permanent connection. In high-current terminals, contact force is one of the basic elements. Without enough contact pressure, using even the best conductive materials is not a good thing. Because, if the contact force is too low, there will be displacement between the wire and the conductive sheet, resulting in oxidation pollution, the contact resistance increases resulting in overheating. Taking the DRTB 2.5 crimp box assembly as an example, an actual contact force of up to 750 N can be generated by applying a torque of 0.8 Nm to the screw, and the magnitude of this force has nothing to do with the wire cross section. Therefore, the use of terminal block pressure frame will have no environmental impact, large contact area, a large contact force of the permanent connection. A large contact force makes sense only if it is permanently applied to the wire. Crimp terminal blocks also have the greatest reliability in this area. To this end, Nanjing Sanmen Bay designed to tighten the screw in the process of pressure on the threaded box above the tongue bounce up, resulting in a reaction to the screw. Since the change in wire diameter due to temperature is counteracted by the elasticity of the crimp frame itself, there is no need to tighten the screws again. The pressure line on the pressure wire frame at 130oC for 168 hours of aging test, and then again with 20 times the acceleration of gravity for 168 hours of vibration test. After these tests, which are more stringent than VDE 0611, are completed, the pull-out force of the wire from the crimper is still more than six times higher than the value specified in VDE 0611 and the voltage drop remains unchanged. This unequivocally shows the maintenance-free use of crimp frames for high-current terminals.