| 摘要 |
<p>An electromagnetic device (10) is provided. It comprises a core (20), at least one winding (30) having a middle axis (L) and defining two boundary parallel planes (a, b) perpendicular to the axis, the winding being located in an intermediate region between the planes (a, b), a bobbin (40) comprising a thermally conductive material, having elongated elements (42, 44, 46, 48) extending between the planes (a, b) in thermal contact with the core (20) and the at least one winding (30), and at least one heat sink portion (50, 51, 52, 53, 54, 55, 56, 57) in thermal contact with an end portion of at least one elongated element (42, 44, 46, 48) and protruding in a region outwards from the intermediate region, wherein the heat sink portion comprises at least two cooling elements (75) chosen from the list consisting of: fins, pins, rods, and ripples, for enhancing a heat exchanging surface of the heat sink portion (50, 51, 52, 53, 54, 55, 56, 57).</p> |
