Shanghai Jie Jie Electric is engaged in the development, manufacture and sales of terminal blocks. The main factors affecting the selection of the terminal block, based on our company's experience in actual R&D and manufacturing, are briefly analyzed as follows:

The plastic insulating material and the conductive component of the terminal are directly related to its quality, and they respectively determine the insulation performance and conductive performance of the terminal. Failure of any one of the terminals will lead to the failure of the entire system project. This painful lesson at home and abroad is very profound. Prevention is the purpose and analysis is the foundation. In a sense, preventing failure is more important than analyzing failure. It has a more realistic meaning to ensure the quality and reliability of the terminal. From the use point of view, the function that the terminal should reach is: the conducting part of the contact part must be conducted and the contact is reliable. Insulation should not be conducted where the insulation must be reliable. Shanghai Lian Jie Electric thinks the following three types of fatal faults are common to terminal blocks:

1. Poor contact: The metal conductor inside the terminal is the core part of the terminal. It transmits the voltage, current or signal from the external wire or cable to the corresponding contact of the connector. Therefore, the contacts must have a good structure, stable and reliable contact retention and good electrical conductivity. Due to the unreasonable contact structure design, material selection error, mold instability, processing size, surface roughness, heat treatment plating and other surface treatment process is unreasonable, improper assembly, poor storage environment and improper operation, will be in the contact Contact and fittings cause poor contact.

2. Poor insulation - The role of the insulator is to keep the contacts in the correct position and to insulate the contacts and the contacts from each other and between the contacts and the housing. Therefore, the insulator must have excellent electrical properties, mechanical properties and process forming properties. Due to the existence of metal extraneous materials on the surface or inside of the insulator, surface dust, flux and other pollution damp, the organic material precipitates and harmful gas adsorption film and the surface water film fuse to form an ionic conductive path, moisture absorption, mold, insulation material aging and other reasons, Can cause short circuit, leakage, breakdown, low insulation resistance and other poor insulation phenomena.

3. Poor fixing - Insulator not only provides insulation, but also provides precise centering and protection for the protruding contacts. At the same time, it also has the function of mounting and positioning, locking and fixing on the device. Poorly fixed, light affect the contact and reliable cause an instant power failure, the serious is the product disintegration. Disassembly refers to the disconnection between the plug and the socket and between the pin and the jack caused by the unreliability of the structure due to the material, design, and process due to the connection terminals. The serious consequences of signal control interruptions. Due to unreliable design, incorrect material selection, improper selection of molding process, poor quality of heat treatment, mold, assembly, welding, etc., and poor assembly may cause poor fixation.

In addition, due to the coating peeling, corrosion, bumps, plastic shell flash, cracking, contact processing rough, deformation and other causes of poor appearance, due to positioning and locking with the size of the poor, poor consistency of processing quality, the total separation force over Disadvantages due to big reasons. Combined with the understanding and predictability of these types of failures, Shanghai Jie Jie Electric gradually eliminates defective products from the first stage of product inspection, and interlocking to ensure that the finished products are delivered to our customers with the highest quality products. We also look forward to the supervision and feedback from our customers. The combination of the two will make Shanghai Lian Jie Electric more stable on the road leading to the establishment of national brands of terminal blocks.