Patent ID: 8581685

Claim:
A reactor comprising: a first core having an end surface; a second core having an end surface facing the end surface of the first core; coils wound around at least part of the circumference of the first core and the second core; a gap member arranged inside the wound coils and between the end surface of the first core and the end surface of the second core; a coil assembly formed by the wound coils, the gap member, and a first resin that integrally couples the wound coils and the gap member, wherein the coil assembly and the first and second cores are integrally coupled by a second resin, at least a part of the second resin is arranged between the first core and the coil assembly and between the second core and the coil assembly, and the first resin includes one or more protrusions that extend along the inner circumferential surface of the wound coils and in the axial direction of the wound coils.