Patent ID: 7356906

Claim:
A method of manufacturing a brushless direct-current (BLDC) motor having a radial core type double rotor structure, the BLDC motor manufacturing method comprising the steps of: integrally molding an insulation bobbin having first and second flanges at both sides thereof in which first and second coupling protrusions are provided on the lower end of the first and second flanges, and surrounding a middle portion an I-shaped stator core around which coils are wound by an insert molding method using thermosetting resin; preparing a number of stator core assemblies by winding coils between the first and second flanges of the bobbin; wiring both ends of each coil at the state of inserting and temporarily assembling the first and second coupling protrusions of the number of the stator core assemblies into a number of mutually opposing automatic positioning coupling holes formed concentrically on the inner and outer ends of an annular core support plate; preparing an integrated stator by molding the coils-wound stator core assemblies other than the inner and outer sides of the division type stator core in an annular form by an insert molding method using thermosetting resin; and assembling the integrated stator so as to be positioned between the double rotors in which an inner rotor and an outer rotor are aligned in radial type.