Patent ID: 6993829

Claim:
A method for producing a centralized distribution unit of a thin brushless motor for a vehicle wherein said centralized distribution unit is formed into a ring configuration and can concentratedly distribute current to stator windings, and said centralized distribution unit comprises: a plurality of bus bars, each of which includes a terminal portion to be connected to a battery and tabs to be connected to said stator windings, and is provided in conjunction with a phase of said motor; an insulating holder having holding grooves that hold said respective bus bars and maintain a spacing between the bus bars, bearing recesses being provided in a bottom surface of said insulating holder beforehand; and a resin insulation layer formed by insert-molding that covers said bus bars and said insulating holder, said method comprising the steps of: disposing said insulating holder and said bus bars in a molding cavity in an insert-molding mold; engaging distal ends of holder supports that project from an inner wall of a first mold member of the insert-molding mold with said bearing recesses; and supplying a resin that forms said resin insulation layer into said molding cavity.