Patent ID: 11877425
Assignee: GM CRUISE HOLDINGS LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A method of assembling an autonomous vehicle computing device, comprising:
providing a backplate, a printed circuit board assembly, a heat spreader, and a coldplate, wherein:
the printed circuit board assembly includes a heat generating component;
the heat spreader includes externally integrated fins, the heat spreader being configured to receive heat from the heat generating component; and
the coldplate has a cavity defined therein, where an opening defined through a top coldplate surface of the coldplate is contiguous with the cavity;

mounting the heat spreader on the backplate such that fasteners:
pass through a leaf spring positioned in a pocket of a mounting element of the heat spreader;
pass through mounting holes defined through the mounting element of the heat spreader;
pass through openings on the printed circuit board assembly; and
connect to fastener receptacles of the backplate;

inserting the externally integrated fins of the heat spreader through the opening on the top coldplate surface of the coldplate such that the externally integrated fins are positioned within the cavity defined within the coldplate; and
mounting the backplate to the coldplate such that the printed circuit board assembly is between the backplate and the heat spreader, and the heat spreader is between the printed circuit board assembly and the coldplate.