The utility model discloses a connecting structure of an aluminum-based
bus duct with
copper-clad end parts, and relates to the technical field of busbars. The
copper-aluminum eutectic conducting bar comprises a
copper-aluminum eutectic conducting bar body, the copper-aluminum eutectic conducting bar body comprises an aluminum
alloy base body layer A, the end portions of the upper side face and the lower side face of the aluminum
alloy base body layer A are covered with copper connecting
layers A, and the copper-aluminum eutectic layer A is arranged between the aluminum
alloy base body layer A and the copper connecting
layers A. The copper-aluminum eutectic conducting bar further comprises a connector which comprises a plurality of copper-aluminum eutectic connecting pieces. The copper-aluminum eutectic conducting bar is clamped by the connector and tightly abuts against the copper-aluminum eutectic connecting piece. The beneficial effects of the utility model lie in that the utility model combines the advantages of
low density and low cost of aluminum and the characteristics of
high conductivity and
corrosion resistance of copper, and only the end part of the
aluminum substrate is coated with copper, so that the overall cost is reduced, the excellent performance of key parts is ensured, the perfect balance between the performance and the cost is realized, and the copper-aluminum eutectic technology is adopted. The problems that
interface bonding is not firm, resistance is large, and
corrosion is prone to occurring when aluminum and copper are directly connected are effectively solved.