The terminal connection line method refers to the way the contact pair of the terminal is connected to the wire or cable. Proper selection of termination methods and proper use of termination techniques is also an important aspect of using and selecting terminals.
The most common soldering is soldering. The most important thing for solder joints is the continuity of the metal between the solder and the surface to be soldered. Therefore, it is important for the terminal to be solderable. The most common coatings on the soldered ends of the terminals are tin alloys, silver and gold. Reed contact has common soldered, soldered and notched solder tabs: pinhole contacts have a drilled arc notch for common solder ends.
Terminal wire crimping is a technique for compressing and displacing metal within specified limits and connecting the wires to a contact pair. A good crimp connection creates a metal interflow flow that causes the wires and contacts to symmetrically deform the material. This connection is similar to a cold welded joint and provides better mechanical strength and electrical continuity, and it can withstand harsher environmental conditions. It is generally accepted that the correct crimp connection is better than soldering, especially in high current applications where crimping is required. Special crimping pliers or automatic and semi-automatic crimping machines are required for crimping. According to the cross section of the cold-pressed terminal wire, the wire barrel of the contact pair should be correctly selected. It should be noted that the crimp connection is a permanent connection and can only be used once.
Winding is to wrap the wire directly around the angular contact wrap. When wound, the wire is wound under tension, pressed and fixed at the corners of the contact wrap to form a hermetic contact. There are several requirements for the winding wire: the nominal value of the wire diameter should be in the range of 0.25mm - 1.0mm; when the wire diameter is not more than 0.5mm, the elongation of the conductor material is not less than 15%; when the wire diameter is greater than 0.5mm, The elongation of the conductor material is not less than 20%. Wound tools include a gun and a stationary wrap.
Puncture connection, also known as insulation displacement connection, is a novel end technology invented by the United States in the 1960s. It has the characteristics of high reliability, low cost and convenient use. It has been widely used in various terminals for printed boards. . It is suitable for the connection of ribbon cables. The connecting layer does not need to be stripped of the insulating layer of the cable, and the tip of the "U" shaped contact spring of the terminal is pierced into the insulating layer, so that the conductor of the cable slides into the groove of the contact spring and is clamped, thereby A tight electrical connection is formed between the cable conductor and the terminal reed. It requires only simple tools, but cables with specified wire gauges must be used. Screw connection