| 摘要 |
<p>A reactor having an excellent heat dissipation characteristic is provided. The reactor (1) is equipped with one coil (2) that is constituted by having a winding (2w) wound; a magnetic core (3) that is arranged inside and outside the coil (2), and forms a closed magnetic circuit; and a case (4) for housing the assembled body of the coil (2) and the magnetic core (3) therein. The end-face shape of the coil (2) is made to be the shape of a race track, and the coil (2) is housed within the case (4) such that the axial direction of the coil (2) is parallel to the outer bottom face (41o) of the case (4). A portion of the outer circumference face of the coil (2) is covered by the magnetic core (3) (an outside core section (32)), and a section not covered by the magnetic core (3) is made to be in contact with the inner bottom face (41i) of the case (4). Heat of the coil (2) can be dissipated directly to the case (4), by having a portion of the outer circumference face of the coil (2) (mainly the straight line section (22)) come in direct contact with the inner bottom face (41i) of the case (4), and heat can be dissipated to an object upon which the case (4) is to be mounted, such as a water cooling base, via the case (4). Therefore, the reactor (1) has an excellent heat dissipation characteristic.</p> |
