| 摘要 |
[Problem] Manufacturing work of a coil is simplified and miniaturization of a reactor is achieved by reducing occupied space as much as possible. [Solving Means] A reactor coil 12 has the first coil element 121 and second coil element 122 each formed by edgewise and rectangular winding of one piece of rectangular wire rod 170 in a manner in which the wound rectangular wire rod 170 is stacked rectangularly and cylindrically and, at a winding terminating end point of the first coil element 121, the rectangular wire rod 170 is bent approximately 90 degrees in a direction opposite to the winding direction of the first coil element 121 so that the rectangular wire rod 170 is stacked in a direction opposite to the stacking direction of the first coil element 121 and is wound edgewisely and rectangularly in a direction opposite to the winding direction of the first coil element 121 to form the second coil element 122 and, as a result, the first coil element 121 and second coil element 122 are aligned in parallel to each other in a continuous state.
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