Patent ID: 11888371
Assignee: NIDEC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method of a bus bar assembly to connect between a coil in a motor and an external power source;
the bus bar assembly including a bus bar made of a conductor, a shield to shield magnetism generated by the bus bar, and a bus bar holder to hold the bus bar and the shield, the conductor and the shield each being plate-shaped;
the bus bar including a bus bar body portion held by the bus bar holder in a posture in which a plate surface is directed in a vertical direction, and bus bar through holes penetrating the bus bar in a plate thickness direction, the bus bar body portion being arc-shaped; and
the shield including a portion overlapping the bus bar through holes when viewed from the vertical direction;
the method comprising:
preparing a mold to insert-mold the bus bar and the shield;
positioning the bus bar and the shield in the mold; and
injecting a resin into the mold to mold the bus bar holder after the positioning; wherein the positioning includes:
inserting first positioning pins extending upward from an upper surface of a lower mold of the mold into the bus bar through holes to cause the first positioning pins to hold the bus bar;
arranging the shield in the mold in a state where a lower surface of the shield and a distal end of the first positioning pin are in contact with each other;
bringing a second positioning pin extending downward from a lower surface of an upper mold of the mold into contact with an upper surface of the shield and positioning the shield in the vertical direction; and
bringing a third positioning pin extending downward from the lower surface of the upper mold into contact with an upper surface of the bus bar to position the bus bar in the vertical direction.