Electric connection structure, electric connection box and wire harness

摘要

PROBLEM TO BE SOLVED: To easily add a wiring route. SOLUTION: A bus bar 10 having wiring connectors 12 and 22 which are electric connection targets of an electric component EP corresponding to a wiring route, an electric wiring block 30 in which the wiring connector is accommodated, and a wiring route are added. And a circuit additional structure 50 to be used. The circuit additional structure includes an additional terminal metal fitting Tx, which is an electric connection target of the additional electric component EPx corresponding to the additional wiring path, and an additional route electric wire 51 provided with the additional terminal metal fitting at one end. An additional electric wiring block 60 having an additional electric connection chamber 62 capable of accommodating an additional terminal fitting, a relay bus bar 52 for electrically connecting the bus bar side and the other end side of the additional route electric wire, and the relay bus bar to the bus bar. An inter-busbar connection structure 53 capable of electrical connection is provided, and the inter-busbar connection structure physically connects a connection tool 70 for electrically connecting the busbar and the relay busbar and a connection body 71 of the connection tool. And a connected body 17 that can be electrically connected. [Selection diagram] Fig. 4