| 摘要 |
The cooling electronic card has a heat-sink (1) which covers a printed circuit (2) having electronic components (3). The face (4) of the heat-sink fits exactly the shape (5) of the printed circuit and its components and fits exactly over them. The two faces (4, 5) are separated by an empty space (6) of a few tenths of a millimetre corresponding to the thickness of film. The space is used to assure a thermal coupling between the sink and the printed circuit and to assure a mechanical coupling between the sink and the printed circuit. The thermal and mechanical coupling is achieved using an electric insulator (7) which is a good thermal conductor and an adhesive such as a mastic, a resin or a grease inserted between the face of the heat-sink and the face of the printed circuit equipped with the components, which combined with the space assure thermal coupling without heat accumulation points. USE - Electronic heat-sink for printed circuits in form of covering card. For civil or military applications.
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