Plug, socket and connector

The invention provides a plug, a socket and a connector. The plug comprises a plug base; two rows of sunk grooves are formed in the plug base; the bottom surface of each sunk groove is lower than thebase plane of the plug base; each sunk groove communicates with a jack; a cold-pressed terminal is fixed in each sunk groove; the rotating angles of the wiring positions of each row of cold-pressed terminals are equal; and when the plug is not inserted into the socket, any two opposite jacks are in a self-short circuit state. The plug has the advantages of being compact in structure, small in occupied space, simple in circuit installation and disassembly and high in stability. 本公开提供了一种插头、插座及连接器。其中一种插头，包括插头基座，所述插头基座上设置有两排的沉槽，每个沉槽的底面均低于插头基座的基平面，每个沉槽均与一插孔相连通，每个沉槽内固定有一冷压端子，每一排的冷压端子的接线位置旋转角度均相等；当插头未插入插座时，任意两个相对的插孔均处于自短路状态。其具有结构紧凑、占用空间小、线路的安装和拆卸简单以及稳定性好的优点。