Air-feeding-noise reducing structure of muting-type electric generator set

The invention belongs to the technical field of electric generator sets, and relates to an air-feeding-noise reducing structure of a muting-type electric generator set. The air-feeding-noise reducing structure comprises a chassis and a shell connected to the chassis in a fastened mode. A generator-cabinet air inlet is formed in the side portion of the end, corresponding an electric generator, of the shell; a right side plate is arranged at the right end of the shell in a sealing mode, a generator-cabin side plate is arranged on the inner side of the right side plate, the edge of the generator-cabin side plate bends towards one side of the right side plate, and the bending part of the generator-cabin side plate abuts against the right side plate; an air guiding plate is further arranged on the generator-cabin side plate, an electric-generator air feeding cavity is formed between the air guiding plate and the bending part of the generator-cabin side plate, and the generator-cabinet air inlet is communicated with the electric-generator air feeding cavity. By means of the air-feeding-noise reducing structure, the noise of the electric generator set can be effectively reduced, and the temperature of a cavity in the electric generator set can be effectively reduced.