Terminals are used to facilitate the connection of wires. It is actually a piece of metal wrapped in insulating plastic. There are holes for inserting wires at both ends, and there are screws for fastening or loosening. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this time, they can be connected to the terminal or disconnected at any time without welding or winding together, which is very convenient and fast.
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The two ends of a single element are distinguished by two consecutive numbers, and the odd number is smaller than the even number, such as 1 and 2. The terminals in the middle of a single element are distinguished by numbers, and it is best to use numbers in natural ascending order. For example: 3, 4, 5, etc.
The number of each terminal in the middle should be greater than the number of the terminals on both sides, and it should be marked from the terminal near the smaller number. For example, the middle terminals of components with terminals on both sides of 1 and 2 should be marked with numbers such as 3, 4 and 5.
Under the condition of the same material and structure, the plugging and unplugging force of pre-plating tablet is more stable than that of stamping first and then electroplating tablet, because the hardware material becomes hard invisibly in the post-electroplating process, and the first stamping just eliminates this phenomenon.
The contact between the flat plate and the guide pin is mainly considered in the structure, and the contact between the guide pin and the flat plate is mostly linear contact, which leads to a sudden large insertion torque and then a sudden decrease, which gives the customer a very unstable feeling in the use process and affects its life. If the contact between the flat plate and the guide pin is changed to surface contact in structure, the problem of plugging and unplugging force is solved, and the contact resistance and temperature rise are reduced.
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