Framework composition formula electric connector

The utility model provides a framework composition formula electric connector, including plug subassembly and receptacle group spare, the plug subassembly includes the different plug hole insulation body subassemblies of plug housing and a plurality of kinds, and plug housing is last to have a plurality of plug cavity, and equal holding has a plug hole insulation body subassembly in each plug cavity, receptacle group spare includes socket casing and a plurality of kinds of different contact pin insulator subassemblies, has a plurality of socket cavity body on the socket casing, and the internal equal holding of each socket cavity has a contact pin insulator subassembly, a plurality of socket cavity body and a plurality of plug cavity one -to -one, and a plurality of kinds of different contact pin insulator subassemblies and a plurality of kinds of different plug hole insulation body subassembly one -to -ones, socket casing buckle closure is on plug housing, and different types of contact pin insulator subasse