Coyle apparatus, Coyle device with substrate and electric connection box

摘要

To suppress a reduction in connection reliability at a connecting portion between a bus bar and a conductive path of a substrate.SOLUTION: A coil device 20 includes a coil unit 21 having a coil 22 and a magnetic core 25, a resin case 30 accommodating the coil unit 21, and a bus bar 40 that has connection portion 42 connectable to a conductive path of a substrate 11 and held in close contact with the case 30, and the case 30 has a placing portion 34 to be placed on the surface of the substrate 11.SELECTED DRAWING: Figure 3