How To Solve The Problem Of Wiring Terminal?

The metal conductor inside the terminal is the core part of the terminal, which transmits the voltage, current or signal from the external wire or cable to the corresponding contact of its cooperating connector. Therefore, the touch element must have an excellent structure, a stable and reliable touch retention force, and an outstanding electrical conductivity. Because the structural design of the touch parts is unreasonable, the material selection is wrong, the mold is unstable, the processing size is out of tolerance, the appearance is rough, the surface treatment processes such as heat treatment and electroplating are unreasonable, the installation is not proper, the storage and use environment is harsh, and the operation and use are improper. , The touch and cooperation part of the touch piece will produce bad touch.

The effect of the terminal insulator is to keep the contacts in the correct orientation and to insulate the contacts from each other and the housing. Therefore, the insulation must have excellent electrical properties, mechanical properties and process molding properties. Especially with the widespread use of high-density and miniaturized terminals, the useful wall thickness of the insulator becomes thinner and thinner. This puts more stringent requirements on insulation materials, injection mold accuracy and molding process. Because there are excessive metal, external dust, flux and other pollution and moisture on the surface or inside of the insulator, organic matter precipitation and harmful gas adsorption film fused with the external water film to form an ion conductive channel, moisture absorption, mildew, aging of the insulating material, etc., will cause short circuit and leakage , Breakdown, insulation resistance is one-level low insulation shortcomings.

The insulator not only has an insulating effect, but also provides precise centering and protection for the extended contact. They also have the functions of installing and positioning, locking and fixing equipment. If the fixing is not good, the light one will affect the reliability of the touch and cause instantaneous power failure. The most serious thing is the decomposition of the product. Crash means that when the terminal is inserted, the structure formed due to material, design, process and other reasons is not reliable, causing the plug and the socket, the plug and the socket to be abnormally separated, and the serious consequence of the interruption of the power transmission and signal control of the control system. Because the design is not reliable, the material selection is wrong, the molding process is selected incorrectly, the quality of heat treatment, mold, installation, welding and other processes are poor, and the installation is improper, which will lead to poor fixing.

In addition, poor appearance due to separation, corrosion, scratches, mold shell flashing, cracks, rough machining of touch parts, deformation of terminal coatings, etc., and poor interchangeability due to excessively large positioning and locking cooperation dimensions , Poor consistency of processing quality, excessive total separation force and other reasons are also common and frequent diseases. In the process of viewing and using, these types of faults can usually be discovered and eliminated in time. The reliability of preventing failures is selected and viewed. In order to ensure the quality and reliability of the wiring terminals and prevent the occurrence of the above-mentioned life-threatening failures, it is recommended to study and formulate the corresponding selection skill requirements according to the technical conditions of the product, and conduct the following targeted reliability checks to prevent the occurrence of failures.