PCB permanent magnet brushless direct-current motor

The invention provides a PCB permanent magnet brushless direct-current motor, and belongs to the technical field of transmission machinery. The PCB permanent magnet brushless direct-current motor comprises a front end cover and a rear end cover, which are arranged in a mutually matched manner; the interiors of the front end cover and the rear end cover are each provided with a rotor disc in a clearance fit manner; magnetic steel is fixedly arranged in the rotor disc; a PCB stator plate is arranged between the two rotor discs; two surfaces of the PCB stator plate are each additionally providedwith an insulation and heat-dissipation aluminium substrate; the magnetic steel surfaces of the two rotor discs respectively face to the aluminium substrate and the PCB stator plate; the aluminium substrate is installed on a rotating shaft; furthermore, an air gap is formed; a wiring port is arranged on the PCB stator plate; and the front end cover and the rear end cover are respectively providedwith a clamping groove for