Terminal blocks can achieve safe, reliable, and efficient connections, and are used in fields such as power electronics, electrical control, and power supply to transmit signals and voltages. At the same time, using terminal blocks for wiring makes it appear neater and beneficial for later maintenance.
There are five common wiring methods for terminal blocks:
1. Puncture the connection
Also known as insulation displacement connection, it has the characteristics of high reliability, low cost, and easy application, and is suitable for the connection of ribbon cables.
When connecting, there is no need to strip off the insulation layer of the cable. The tip of the "U" shaped touch spring of the terminal block is inserted into the insulation layer, allowing the conductor of the cable to slide into the groove of the touch spring and be clamped, thus forming a tight electrical connection.
2. Screw connection
Screw connection is a connection method that uses screw type terminal blocks. Attention should be paid to the maximum and minimum cross-sections allowed for connecting wires, as well as the maximum tightening torque allowed for screws of different specifications.
3. Crimp connection
Crimping is a technique used to compress and displace metal within regular limits and connect wires to touch pairs. A good crimping connection can cause metal to melt flow, resulting in symmetrical deformation of the wire and the contact material.
This type of connection is similar to cold welding connection, which can achieve better mechanical strength and electrical continuity, and can withstand more harsh environments. But the crimping connection is a permanent connection and can only be used once.
4. Welding
The most common type of welding is soldering, and the most important aspect of soldering is the continuity of the metal between the solder material and the surface being welded. Therefore, for wiring terminals and cold pressed terminals, solderability is important.
5. Wrap around
Winding is to directly wrap the wire around the angled touch piece winding post. When winding, the wire is wound under controlled tension, pressed and fixed at the corners of the touch piece winding column to form an airtight touch.