A pin socket, also known in the industry as a base, is a connector that is mounted on a printed circuit board and needs to be soldered with circuit pins. Common connector headers include: uncovered base (such as needle row structure), covered base (common wafer type) and friction lock type.

The needle holder of the connector is a special plastic in a high temperature environment and needs to have high temperature resistance. For example, the needle holder used for surface mount welding needs to be welded by reflow soldering equipment, and the temperature resistance needs to reach about 265. The other is that the needle type needs to be welded with wave soldering equipment, and the temperature resistance needs to reach about 230. If the temperature resistance of the plastic is not up to standard, structural deformation during welding will affect normal use.

The plastic materials used in the connector hub are nylon, high temperature nylon, polyester-PBT, polyester-PCT, PPS, LCP, etc. Different plastic materials have different fluidity, process length, shrinkage rate, water absorption rate and linear expansion coefficient in the molding process, which has a lot to do with the materials used in the development of plastic molds and requires accurate calculation.

In the electronic connector pin industry, the pin holder is generally called a wire-to-board connector, because only the wire-to-board connector only talks about the pin holder, and the wire-to-wire connector does not have a pin holder, and the board-to-board connector is generally a pointer row, busbar and other products. Of course, some exceptions are not excluded.

The needle holder is generally made of phosphor bronze or alloy, and the surface is tin-plated or copper-plated with gold, depending on the needs of the product. The tension of the needle holder is also important. Generally important products will consider the pulling force and number of insertions and insertions. This will test the quality of the hub. The pin socket of the wire-to-board connector is the core of the core. One end is the pin that connects the wire to the socket at the other end, and one end is the pin socket, and then insert these pins into the printed circuit board or ordinary circuit board. This forms a closed loop, making the circuit or electrical signal unimpeded.

A later stage in the manufacture of the electronic connector is the finished product assembly. Insert the plated pin into the injection box holder. The assembly method of the electronic connector-the pin holder can be divided into single fit and combined fit.

That's called a single double plug, that's called a combination double plug?

We all know that electronic connectors are composed of terminals, rubber housings and pin holders. When assembling, the iron shell (copper shell), the pins, the terminals and the small cover are usually assembled together. The assembly method of the electronic connector header mating is for the pin and the rubber housing, whether it is a single mating or a combination mating. The function of single matching is to insert one needle at a time, and the combination matching is to insert multiple needles with plastic base at the same time.

Regardless of the assembly method used for the two electronic connectors, the manufacturer requires that all pins be checked for missing and correctly positioned during the assembly stage. Another routine inspection task is to measure the distance on the mating face of the connector. The assembly method of electronic connectors-pin socket matching is roughly the two, which are basically completed by automated assembly equipment. The operator is only responsible for detecting whether the machine is missing after assembly and whether the positioning is correct to ensure the safe and stable use of the needle holder.