Special-shaped copper bar

The utility model relates to a special-shaped copper bar, and belongs to the technical field of electrical equipment. The special-shaped copper bar comprises a copper bar body, the copper bar body is of a cuboid structure, the four faces of the copper bar body in the length direction are provided with notches, and the notches located on the upper face, the front face and the rear face are the same in structure. The copper bar is simple in structure and convenient to lap, the current-carrying capacity of the copper bar is far higher than that of a rectangular copper bar under the same section, and the copper bar has the advantages that an airflow channel is formed, airflow movement is facilitated, and heat dissipation is fast; the high current-carrying capacity requirement can be well met; the dynamic and thermal stability endurance capability is enhanced, so that the bus system is ensured to be in a stable state in long-term work; and lap joint is convenient, and convenience is provided for future expansion o