Aluminum pipe heater for defrosting of refrigerator

The utility model discloses an aluminum tube heater for refrigerator defrosting, which comprises an aluminum tube, a heating wire is arranged in the aluminum tube, a first end of the heating wire is connected with a terminal through a first lead, a second end of the heating wire is connected with the terminal through a second lead, the first lead is further provided with a first fuse assembly, and the second lead is further provided with a second fuse assembly. The second wire is provided with a second fuse assembly, the outer side of the aluminum pipe is provided with a plurality of cooling fin assemblies which are arranged at intervals in the axial direction of the aluminum pipe, and each cooling fin assembly comprises a plurality of cooling fins which are distributed in the circumferential direction of the aluminum pipe at intervals. In this way, the multiple cooling fin assemblies are arranged on the outer side of the aluminum pipe, the contact area of the aluminum heating pipe and the evaporator is incre