Why does the wiring terminal block malfunction?
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Why does the wiring terminal block malfunction?

Views: 0     Author: Site Editor     Publish Time: 2022-12-12      Origin: Site


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The connection terminal block utilizes the existing rail type connection terminal block frame type screw connection technology and is equipped with a circuit composed of electronic components, which realizes the transmission coupling of the photoelectric process. The terminal block is a kind of accessory product used to realize the electrical connection, which is divided into the category of the connector in the industry.

Here is the content list:

●Why do the terminal blocks have poor contact?

●Why are the terminal blocks badly insulated?

●Why are the wiring terminal blocks badly fixed?

Why do the terminal blocks have poor contact?

The core part of the terminal block is the metal conductor inside the terminal block. The core part transmits voltage, current, or signal from the external wire or cable to the corresponding contact of the matching connector. Therefore, the contact must have stable and reliable contact retention, excellent structure, and good conductivity. When this kind of failure occurs, it may be due to unreasonable structural design of the contact, wrong material selection, unstable mold, unreasonable surface treatment processes such as heat treatment, electroplating, unreasonable processing dimensions, rough surface, improper assembly, storage, harsh use environment, etc. caused. Improper operation and use will damage all contact parts, widen the connection terminal block, and cause poor contact between contacts and supporting parts.

Why are the terminal blocks badly insulated?

The insulator can keep the contacts in the correct position, and at the same time insulate the contacts and the contacts, and between the contacts and the housing. Therefore, the insulator must have excellent electrical properties, mechanical properties, and process molding properties. With the increasing application of high-density and miniaturized terminal blocks, the effective wall thickness of the insulator is getting thinner and thinner. Therefore, insulation materials, injection mold accuracy, and molding technology must be more excellent. There are many reasons for short circuit, leakage, breakdown, low insulation resistance, and poor insulation, including excessive metal on the surface or internal of the insulator, surface dust, flux, and other pollution and moisture, organic matter precipitation, harmful gas adsorption film, and surface water film fusion to form ion conduction channels, moisture absorption, mold growth, aging of insulation materials, etc.

Why are the wiring terminal blocks badly fixed?

The insulator not only protects and centers the protruding contacts, but also provides insulation. The insulator also has the functions of installation, positioning, and locking, and fixing on the equipment. If the connection terminal block and the insulator are not properly fixed, it will affect reliable contact, cause instantaneous power failure, and cause the product to disintegrate. Disassembly and assembly refer to the unreliable structure of the terminal block in the inserted state due to material, design, process, and other reasons, resulting in abnormal separation of the plug, and the socket, and the pin and the socket, causing serious interruption of power transmission. The reasons for the poor fixing of the terminal block include unreliable design, wrong material selection, improper selection of molding process, poor quality of heat treatment, mold, assembly, welding, etc., and improper assembly.

In addition, poor interchangeability caused by peeling of the coating and poor appearance is also common. These types of faults can generally be discovered and eliminated in time during inspection and use. Ease Industries & Investments Co., Ltd pays great attention to product quality and has made a lot of investment in mold design and mold manufacturing for group manufacturers. Anyone who needs terminal blocks can choose our company.


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