An electric energy transmission joint and a preparation method therefor. The electric energy transmission joint includes an electric energy transmission copper part, an electric energy transmission aluminum part, and an aluminum wire. The electric energy transmission copper part includes a fixer for connection with an electric consumption device, and a connector for connection with the electric energy transmission aluminum part. A first through hole is provided inside the electric energy transmission aluminum part, and a second through hole is provided inside the connector. An aluminum conductive core exposed by stripping an insulation layer from a front end of the aluminum wire is inserted into a cavity formed by the connection of the first through hole and the second through hole.

A machine includes a first feeding station feeding at least one electrical wire, and a crimping station having at least one crimping tool. The machine further includes an insulation displacement connection (IDC) connection station, and a movable holding and transfer device having at least one actuator. The holding and transfer device receives an electrical wire from the first feeding station and transfers one or both ends of a first wire from the feeding station to one or both of the crimping station and the IDC connection station.

A routing member includes a bus bar and a heat storage member. The heat storage member is attached to the bus bar by a fixing portion formed by crimping.