Distribution box with self-heat-dissipation channel

The utility model provides a distribution box with a self-heat-dissipation channel. Box body, a mounting hole is formed in the rear side surface of the box body; a mounting plate is arranged at the position, corresponding to the mounting hole, in the box body; a groove plate is arranged in front of the mounting plate; cooling fins are arranged behind the mounting plate; wherein supporting folded plates connected with the box body are arranged at the corners of the mounting plate, four heat dissipation bodies connected end to end are arranged between the mounting plate and the box body, a plurality of through hole arrays are uniformly distributed on the heat dissipation bodies, a supporting frame with heat dissipation holes is arranged at the bottom of the box body, and a heat exchange fanis arranged in the supporting frame and located in the center of the bottom of the box body. The mounting plate provided by the utility model is used as a mounting plane of an electrical element, thedisassembly and assembly d