Connector

The utility model discloses a connector which comprises a plug and a socket. The plug is provided with a first insertion core, and the first insertion core comprises an insertion core main body and at least one independent pin seat and/or at least one first modular insertion part; the insertion core main body is provided with at least one independent installation cavity and/or at least one module installation cavity. The independent pin seat is detachably mounted in the independent mounting cavity, and the modular plugging part is detachably mounted in the modular mounting cavity; the independent pin seat and the first modular plugging part are internally provided with a first type of pins. The socket is provided with a second insertion core matched with the first insertion core, and the second insertion core is provided with a second type of insertion pins matched with the first type of insertion pins; when the plug is plugged into the socket, the first type of pins and the second type of pins are connected