公开(公告)号：US20230067477A1

公开(公告)日：2023-03-02

申请号：US17894976

申请日：2022-08-24

Applicant: OSRAM GmbH

Inventor： Werner STOLZENBERG ,  Ulrich Hartwig

IPC: H05K7/20

Abstract: Disclosed herein is a cooling device, comprising a cooling plate and a cooling cap, for cooling a heat source, mounted to an outer interface surface of the cooling plate, by means of a cooling fluid. Several spiral-shaped fins are integrated into the cooling plate to form a structure in the shape of a multi-spiral. The fins are arranged next to each other in a mutual distance to form spiral-shaped flow channels for a cooling fluid. An inlet for inflowing the cooling fluid at the center of the multi-spiral fins structure is integrated into the cooling cap. The cooling cap is configured and arranged on the cooling plate so that the inlet is positioned above the center of the multi-spiral fins structure.