Heat dissipation structure and motor frequency conversion controller with same

The utility model provides a heat radiation structure and a motor frequency conversion controller possessing the same, the heat radiation structure comprises a fan, a PCB and a radiator possessing heat radiation fins and a heat radiation plate, the heat radiation fins are fixed at one side of the heat radiation plate, the PCB is arranged at the other side of the heat radiation plate, an accommodating space is arranged between the heat radiation fins, and the fan is installed in the accommodating space; through holes are formed in the surface of the heat dissipation plate; the through hole is located in the vertical projection of the fan on the heat dissipation plate; the heat dissipation plate and the PCB are assembled together and are spaced at a certain distance. The motor frequency conversion controller with the heat dissipation structure is provided. According to the utility model, the space practicability is higher, and the safety operability can be improved; the air volume utilization rate can be improv