Air circulation assembly and refrigeration equipment

The utility model relates to the technical field of refrigeration equipment, in particular to an air circulation assembly and refrigeration equipment. The air circulation assembly comprises a shell, an air return channel and an evaporator. The shell is provided with an air collecting chamber, and an air return opening of the air return channel communicates with the air collecting chamber. The evaporator is arranged in the air collecting chamber, a plurality of fins are arranged on the evaporator, the evaporator is provided with a first area and a second area, the first area is closer to the air return opening relative to the second area, and the density of the fins in the first area is smaller than that of the fins in the second area. The density degree of the fins in the first area closer to the air return opening is reduced, so that the heat exchange speed of the first area is reduced. Therefore, frosting caused by a large temperature difference between the temperature of the first area and the gas output from the air return port can be avoided, the gas output from the air return port can be gradually subjected to heat exchange and cooling in the process of diffusing into the air collection chamber, frosting at the evaporator and the air return port is avoided, the heat exchange performance of the evaporator is guaranteed, and energy consumption is reduced.