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There are many types of terminal blocks and complete functions, including spring terminal blocks, screw terminal blocks, UK terminal blocks, MCS spring connectors, transformer terminal blocks and so on. Before this industry developed and diversified, it also passed a long period of evolution. At that time, there were few product series and single functions. Today we take a look at the copper post screw type terminal.
Copper post threaded terminals are commonly used in switching power supplies and are more traditional wiring methods. The biggest advantage of this wiring method is that it is more convenient and reliable. Because the copper column is large, the heat dissipation is very good, and it is easy to meet the heat dissipation required by the switch and socket due to the high current heating.
So why has copper post screw terminals been evolved with this advantage? First of all, let's first understand the screw connection: the huge pressure of the screw will cause the wire to deform slightly, and firmly press the wire to make it not easy to come off.
The disadvantage is that the screw is easy to crush or even break the wire, and the riveting of the copper column and the copper sheet will produce a higher contact resistance.
Screw-type terminal screws, copper posts and pressure plates are important components that make up the clamping mechanism. Compared with screw-type terminals, the spring terminal is the best evolved product. The pressing mechanism of the product is mainly a spring. The spring is pressed by a push block or a screwdriver, and the wire is pressed firmly by the spring's pull back force.
At present, the spring material used for the electronic spring terminal generally uses nickel-chromium spring steel, which not only ensures sufficient contact pressure, but also does not damage the wire excessively.
October 28, 2022