Cooling unit for electronic component, particularly power transistor, has two cooling elements, where housing recess is provided on other opposite side for accommodating projection adjacent to cooling elements

摘要

The cooling unit (10) has two cooling elements (18,22) with a projection on a side. A housing recess is provided on the other opposite side for accommodating the projection adjacent to cooling elements. A boundary surface is partly arranged at the other side of cooling element. The projection, at the former side of cooling element, is held by housing recess and stays in heat conducting contact with housing recess and a cooling fin (20), which sticks out laterally from two adjacent cooling elements and stays in heat conducting contact with shoulder area and the former side of a cooling element.