Novel permanent magnet brushless direct current motor

The invention provides a novel permanent magnet brushless direct current motor, and relates to the field of permanent magnet brushless direct current motors. The novel permanent magnet brushless direct current motor comprises a bottom plate, a machine shell, a baffle disc and a protection shell, the two sides of the upper surface of the bottom plate are fixedly connected with supporting plates, the upper ends of the supporting plates are fixedly connected with a flow guide cylinder, the inner wall of the flow guide cylinder is fixedly connected with a plurality of flow guide plates, the front end of the inner wall of the flow guide cylinder is fixedly connected with a perforated plate, and the perforated plate is fixedly connected with a motor. A plurality of first ventilation holes are formed in the rear end of the outer wall of the machine shell, and a plurality of second ventilation holes are formed in the middle of the outer wall of the rear end of the machine shell. According to the novel permanent magne