The advantages of the terminal and standards

PublishTime：2018-07-06                 Click：2210

Technical Support... The terminals are important supporting elements for system engineering, from system, subsystem, cabinet, combination, PCB to each replaceable independent unit, tens of thousands of terminals, such as the human nervous system, are distributed in various systems and locations, it is responsible for the power transmission and signal control and transmission of the control system. So this determines the application of terminals is ubiquitous, as long as there are terminals where wiring is needed. Execution standard of terminal terminal: Because of the importance of the terminals, the terminals must be designed and used to meet safety and environmental standards. Only by meeting the standards can you buy the rest assured that the safety of the accident can be avoided by using peace of mind. The manufacturers of general wiring terminals perform electromechanical components (Basic test procedures and measuring methods) for GB/T 5095-1997 electronic devices when designing stereotyped products. Terminal products in their field of innovation: With the increasingly frequent use of terminal products in the wiring field, more and more users have put forward more requirements. The structure and connection mode of the terminals have changed greatly. A variety of wiring structures are extended from the original single structure, which are suitable for all kinds of wiring environment, and greatly facilitate our use.  At the same time, the structure of the terminals is more and more humanized, and the wiring speed is greatly improved, which reduces the labor intensity of the workers. At the same time, the reliability of terminal terminals is becoming more and more high, the new production technology and technical equipment are put into use, the scientific production process and quality control methods have greatly improved the quality and life of terminal terminals. With the increasing demand for environmental protection, the environmental protection requirements of terminals are very necessary. Halogen free addition of flame retardants, innocuity of conductor insulators, and lead-free coating are all positive responses to this requirement: 1. Insulator material Material nylon (PA66), flame retardant grade V0, without any harmful halogen, excellent flame retardancy, safety and environmental protection. Other commonly used materials are thermoplastic polyester (PBT), and liquid crystal polymer (LCP) used in combination with perforation reflux technology. 2. Screw terminal The printed circuit board terminals with screw connections have been playing an important part in the electronic industry, and now it has become an important component of the printed circuit board. Its structural design takes account of the characteristics of convenient connection and reliable screw connection. 3. Spring connection terminal The printed wiring board terminals connected by springs are divided into two types: pull spring connection and butterfly spring connection. The spring connection terminal and the screw terminals can be compatible with each other, which greatly increases the flexibility. Reliable connection: front connection, connection visibility, low maintenance, no need to tighten. 4. IDC stripper fast connection terminal IDC fast wire terminal without stripping can realize fast connection to insulated conductor without any tools. The wire is pushed into the knife edge and the insulation skin is cut by pulling the auxiliary rod to realize the airtight connection. This connection saves 60% of the wiring time, does not need to be striped, and does not need tools. And by authentication, it can be used for wiring (five lines) of Ethernet. They have the following advantages, no matter what type of connection terminals they have. 1. Large connection capacity, suitable for various wiring requirements. 2. The mechanical coupling between the wire clamp frame and the welding pin is that the torque of the tightening screw is not transmitted to the solder joint due to the uncoupling between the wire clamp frame and the welding pin. 3. The welding needle is four prism, and the end contraction is finer. When the welding hole is inserted, the contact area is increased. The welding fluid is easy to melt into the welding hole, and it is not easy to weld. 4. The welding pin is copper alloy, and the welding pin has no dirt to ensure the long-term reliability of welding. 5. Tin plating needle, easy to weld. 6. With the heat dissipation channel. 7. The end of the welding needle is finer and easy to install. Users can not only select different parameters according to their needs, such as needle position, needle distance, etc., but also choose different wiring directions. In practical applications, the layout of components, such as the location of PCB in the enclosure, often limits the wiring of printed circuit board terminals. Printed wiring board terminals with many different wiring directions will undoubtedly have important practical significance: horizontal, vertical, oblique, and frontal. The more choices you have, the greater the help you will have for practical operation. Printed circuit board terminals can even provide multi-layer wiring (1 to 4 layers) terminals. The arrangement between layers is very compact, and a half stitch is staggered vertically. This terminal is fully in line with the compact layout and space saving design needs. The connection terminals of the screw connection mode can be compatible with the wiring terminals connected by springs. Compatibility means that the two can be interchanged and there is no need to change the layout of printed circuit boards. This greatly improves the adaptability of products and reduces the cost to a large extent. In order to meet the requirements of new electronic assembly process, the new technology of perforated plug reflux is introduced. It has the following advantages: 1. Local immersion brazing or pressing is abolished. 2. It is fully compatible with surface encapsulation technology. 3. It can be fully integrated into the automatic installation process. 4. There is no additional space position in the production workshop. 5. There is usually no additional cost of investment. With this technology, a series of THT series which meet the SMC (surface mounting compatibility) process and the connection terminals made of high temperature resistant insulating material (LCP) are developed. It also provides reel packing with positioning holes to meet the requirements of automatic assembly.