摘要 |
<p>The improvements consist in constructing the bridge cap on the basis of an electrically insulating frame (8) and a dissipating plate (1), such plate comprising an external and larger metal-based layer (4), a thin middle electrically insulating and good heat conducting layer (5) and an internal layer (6), preferably made of copper, on which the tracks (6 min ) are defined to attach, by tin welding, rectifier cells (2) and their relevant connectors (7) and connecting tags (3) to the outside.</p> |