In the connector industry at home and abroad, there are two ways to name product models: one is to use letter codes and numbers to reflect the main structural characteristics of the product in the model name. The advantage of this method is that it is easy to identify, but the arrangement is too long and complex. With the miniaturization of connectors, it brings many difficulties to printing. Currently, this method is still popular in China and has been specified in some industry standards and even national standards. Due to the increasing diversity of connector structures, it is becoming increasingly difficult to cover a certain type of connector with a naming rule in practice. The other way is to use Arabic numeral combinations. The advantage of this method is simplicity, Convenient for computer management and logo printing of small products. Currently, major international connector manufacturers are adopting this method. It is expected that each manufacturer will gradually replace the method of industry wide unified naming rules under the planned economy system by formulating naming methods that reflect their own characteristics