Heat dissipation structure for motor in centrifugal high-speed blower

The invention relates to the technical field of motor heat dissipation, in particular to a heat dissipation structure for a motor in a centrifugal high-speed blower, which comprises a positioning cylinder and a motor fixedly mounted on the inner wall of the positioning cylinder, four mounting plates are uniformly and fixedly connected to the edge position of the front wall of the positioning cylinder, and the motor is driven by a power supply. The output end of the motor is fixedly connected with fan blades; and the mounting groove is formed in the rear wall of the positioning cylinder. By arranging the refrigeration mechanism, after a semiconductor refrigeration sheet works, heat transfer can be generated at the two ends of the semiconductor refrigeration sheet, so that a temperature difference is generated, a cold end and a hot end are further formed, the cold end can refrigerate a second heat dissipation plate, the cooling effect on the motor is achieved, meanwhile, heat of the hot end is guided through fa