Heat exchanger with end plates provided with copper rings

The invention discloses a heat exchanger with end plates provided with copper rings, and belongs to the technical field of artificial refrigeration. The heat exchanger at least comprises heat exchange tubes and the end plates used for fixing the heat exchange tubes. A plurality of through holes are formed in each end plate. The copper rings are arranged in the through holes, and the heat exchange tubes penetrate through the copper rings to be connected with the end plates. According to the heat exchanger with the end plates provided with the copper rings, the heat exchange tubes are fixed to the end plates through the copper rings, and thus the heat exchange tubes do not directly make contact with the sharp edges of the through holes of the end plates; and in addition, the hardness of the copper rings is lower than that of steel plates so that the risk that the heat exchange tubes are cut broken, and consequentially leakage is caused can be effectively lowered, and the reliability of a heat exchanger system w