What terminal should the wiring harness choose

What terminal should the wiring harness choose?

The selection of the terminal is nothing more than the wire diameter, current, wiring direction, application occasion, wiring method and other wire diameter and current, which will not be discussed here, that is, the size of the wire diameter and the rated current. The wiring direction generally has the front wiring and the side outlet. It is mainly to facilitate the operation of the technicians, thereby improving the power application occasions of the work. This is a very frequently asked question. The terminals are widely used. For example, you buy The terminal is to be soldered on the PCB board, so it is impossible for you to choose the wiring method of the terminal used on the guide rail. Generally, there are methods such as docking, suspension, and fixing. The basic composition of the general terminal is an insulating base, an insulating partition , wire components, insulation base is integrated.

When faced with the selection of terminal blocks, the first thing that everyone is willing to think of is the wire diameter, current, wiring direction, use occasion, wiring method, etc. The wire diameter and current are also the wire diameter and rated current. In addition, the wiring direction generally has the front and the side. The design of surface outlet is mainly to facilitate the operation of technicians, thereby improving the power usage of the work. Terminals are used in a wide range. For example, the purchased terminals are for soldering on the PCB circuit board, so it is impossible for you to choose the wiring method of the terminals used on the guide rails. Generally, there are methods such as docking, suspension, and fixing for general wiring. The fundamental composition of the terminal consists of an insulating base, an insulating baffle, and a wire, and the insulating base is integrated. The wiring piece is seated on the insulating base and placed in the insulating partition. The wiring piece includes wire clips, screws, nuts and a support frame. The support frame is U-shaped, and the wire clips are placed in the support frame. The elongated holes on the two ends of the shape press the wire clip. A wire clip is composed of an upper wire clip and a conductive sheet. There are multiple rows of bumps protruding from the outer surface of the upper wire clip. There are one or two convex ribs on the bumps. There are multiple rows of bumps protruding on both sides. The bumps and the middle of the upper surface form an arc. There are one or two convex ribs on the arc surface. The bumps and the bumps form a zigzag shape. The middle section of the upper surface of the conductive sheet is a raised channel. The threaded hole is connected to the insulating base by bolts, and a positioning block protrudes from each end of the lower surface of the conductive sheet is connected to the U-shaped support frame. When the two upper wire clips are placed on both sides of the conductive sheet channel and clamped together with the conductive sheet, The upper wire clip and the conductive sheet bumps (staggered to each other to clamp the wire.

Generally, before setting the terminal, you need to know what kind of terminal you want. According to the function of the terminal, there are: general terminal, safe terminal, experimental terminal, ground terminal, double-layer terminal, double-layer conduction terminal, three-layer terminal, three-layer terminal Layer conduction terminal, one-in and two-out terminal, one-in three-out terminal, double-in and two-out terminal, knife switch terminal, overvoltage protection terminal, symbol terminal, etc. According to the current classification, it is divided into general terminals (small current terminals) and high current terminals (more than 100A or more than 25MM lines). Classified by appearance. It can be divided into rail type terminal fixed terminal circuit board terminal (PCB terminal) and so on.

Feature description of the terminal block: each connection area is composed of an insulating seat, a U-shaped frame, a nut, a hexagon socket head screw, and upper and lower loose blocks. There are wiring holes between the opposite contact surfaces of the upper and lower loose blocks, and the socket head screws pass through. The nut is placed on the upper loose block, and its purpose is to directly connect cables of different thicknesses to the high-current terminal.