Patent ID: 8786391

Claim:
A reactor, comprising: a reactor core having an annular shape formed by combining a pair of iron cores each having two leg portions with different lengths, wherein a longer one of the two leg portions of a first iron core and a shorter one of the two leg portions of a second iron core are placed opposite each other and a first gap part is formed therebetween, while a shorter one of the two leg portions of the first iron core and a longer one of the two leg portions of the second iron core are placed opposite each other and a second gap part is formed therebetween; a pair of coil parts provided on the annular reactor core, the coil parts including a first coil wound at the first gap part and a second coil wound at the second gap part, wherein an axial peripheral portion of the first coil and an axial peripheral portion of the second coil are arranged on the reactor core so as to include portions overlapping with each other along the axial direction; and four retaining stay parts provided at four corner portions of the reactor for attaching the reactor to an outer part, wherein, among the four retaining stay parts, a retaining stay part located close to the first gap part and a retaining stay part located close to the second gap part have a lower rigidity than that of a retaining stay part located distant from the first gap part and a retaining stay part located distant from the second gap part.