The utility model relates to the technical field of generators, and discloses an outer rotor generator structure for a
rowing machine and an exercise bicycle, which comprises a rear protective cover, a
stator body is arranged in the rear protective cover, the left end of the rear protective cover is connected with a
front cover PCB (
printed circuit board) in a clamping manner, and a bracket is arranged at a through hole in the
front cover PCB; a bearing is installed in the support, a rotor body is installed in the bearing, and a
magnet is installed outside the support. According to the utility model, the functions of the rectification circuit board are respectively transferred to the
front cover PCB and the upper controller of the generator, so that the rectification circuit board is reduced, the cost can be greatly optimized, the product reliability is improved, the
assembly wires are reduced, the cost is reduced, and the sealing structure is formed between the front cover PCB and the rear protection cover. And the problems of
noise or jamming and the like caused by falling of foreign matters due to a gap between the
stator and the rotor are prevented.