Connection structure of rectifier cabinet direct current outlet buses and direct current distribution buses

The utility model relates to a connection structure of buses, in particular to a connection structure of rectifier cabinet direct current outlet buses and direct current distribution buses of a rectifier station of an electrolytic aluminum factor. The connection structure comprises the direct current distribution buses and the rectifier cabinet direct current outlet buses, wherein the rectifier cabinet direct current outlet buses are connected with copper cylinders of copper-aluminum transition pieces; aluminum boards of the copper-aluminum transition pieces are welded with one ends of flexible aluminum connectors; and the other ends of the flexible aluminum connectors are welded with the direct current distribution buses. The connection structure has the advantages that after the adoption of the connection structure, the shortcoming of the connection of copper-aluminum buses is well overcome by the copper-aluminum transition pieces; one-time investment in the buses is saved; and convenience is provided for a wireman needing to disassemble the rectifier cabinet when the rectifier cabinet is overhauled.