Copper terminal connection method
May 14,2023
Nowadays, copper terminals have gradually been used as accessories in the industrial automation production industry. Copper terminals have a wide range of types and complete functions, and have unparalleled advantages as wiring accessories in the past. However, how to correctly apply copper terminals to the fields of wire connection and signal transmission is a problem that needs to be considered, and the most important thing is which connection method to choose when using copper terminals, Reasonable selection of connection methods can make the use of copper terminals more effective. Today, I will introduce several connection methods for copper terminals.
The most common method for connecting copper terminals is welding, with tin welding being the most common. Tin welding is simply used to connect the surface of the same terminal with the tin material, creating continuity that belongs to the metal. Therefore, in this connection method of welding, the most important thing is the solderability of the copper terminal. If the copper terminal is high-quality in terms of solderability, welding can be used as a connection method, and the effect is very significant.
The second connection method for copper terminals is crimping, which is a technology that compresses and positions the copper terminals within the specified requirements before connecting them. The advantage of crimping is that it dissolves and flows the metal through technology to obtain good mechanical strength and electrical continuity. Crimping is generally used in harsh environments, To ensure that the connection can withstand the influence of external adverse factors, especially in places with high current, crimping is designated as the only connection method, and the reliability and stability of crimping are higher than those of welding. However, crimping has one of the most fatal drawbacks. It is a permanent connection method and can only be used once, So in terms of use, welding is not a common connection method.
The third connection method for copper terminals is winding, which mainly involves using a winding gun and a fixed winding machine to directly wrap the wire onto the contact winding column. Generally, the wire is wrapped, pressed in, and fixed on the contact, forming an absolute airtight seal. Of course, the connection method of winding is not as common as the other connection methods because it has many requirements and clear range regulations for wire diameter and conductor material elongation, which leads to certain regulations for winding and cannot be used on a large scale.
The fourth connection method for copper terminals is piercing connection. Piercing connection is a relatively advanced and high-end technology that is not widely used at present. It is mainly suitable for the connection between some ribbon cables. The main operating method is to insert the contact spring of the copper terminal into the insulation layer, and then let the conductor of the cable clamp the copper terminal, This connection method can make the connecting wires between copper terminals and cables more compact, easy to operate, and very stable and reliable after operation. Why hasn't it become widely popular? In fact, the same reason as wire wrapping is that it also has limitations when connecting. Although puncture connection requires relatively simple tools, it must use cables with specified wire specifications when using it.
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