A heat sink for cooling an electric unit to be cooled, including a cooling channel through which cooling liquid is configured to flow. The cooling channel has a first cooling wall on a side of the cooling channel facing the electric unit to be cooled. The heat sink further includes a plurality of cooling pins arranged in the cooling channel, the plurality of cooling pins extending from the first cooling wall into the cooling channel. The plurality of cooling pins includes at least one cooling pin of a first category which is oriented in a first inclination direction, the first inclination direction being inclined obliquely relative to a perpendicular to the first cooling wall. The plurality of cooling pins are arranged such that each respective cooling pin of the plurality of cooling pins does not intersect any other cooling pin of the plurality of cooling pins.