Push In Type Terminal Block Common Fault Conditions

push in type terminal block The internal conductor is the core component of the terminal, which will transmit the voltage, current or signal from the external cable or cable to the contact piece corresponding to the matching connector. Therefore, the contact piece must have excellent structure, stable and firm contact persistence and excellent conductive function. Due to the unscientific design of the contact piece structure, wrong selection of raw materials, unstable mold, processing size error, rough surface, unscientific surface processing such as heat treatment process and electroplating, improper assembly, storage and application harsh environment and improper use, the contact parts of the contact parts will form poor contact.
Poor insulation
The function of the insulator is to keep the contact piece in the proper position arrangement, and to insulate the contact piece from the center of the contact piece and the center of the contact piece from the shell. Therefore, the insulating part must have excellent electrical function, mechanical function and processing technology molding function. In particular, with the widespread use of high-density and miniaturized push in terminal block wire connector, the effective thickness of the insulator is getting thinner and thinner. This will put forward more stringent standards for insulating materials, plastic mold precision molding methods, etc. Due to the presence of unnecessary metal on or inside the insulator, dust on the surface, solder and other pollutants, the organic material separation and harmful substance adsorption film merge with the surface water film to form an ion conductive channel, moisture, mildew, aging of insulation materials and other factors, short circuit, leakage, breakdown, poor grounding resistance and other poor insulation conditions will occur.
Poor fixation
Insulators not only play an insulating role, but also generally provide precise centering protection for the extended contact parts. In addition, they also have the function of equipment positioning and locking and fixing on the equipment. Poor fixation will affect the touch firmness and cause power outage in an instant, and the more serious is brand failure. Failure refers to the abnormal separation of the plug and socket center, push fit connector block and the socket center due to the material, design, processing technology or other reasons when push connector block is plugged in, which will cause serious damage to the power transmission and signal control interruption of the automatic control system. Poor design, incorrect material selection, improper molding method, poor quality of heat treatment process, mold, equipment, welding and other processes, and inadequate equipment implementation will all lead to poor fixation.