FLIRC Cooler

thingiverse

The Raspberry pi 4 runs extremely hot, so much so that it caused my FLIRC case to heat soak in just half a movie's time playing Kodi. To solve this issue, I scoured my spare parts bin and found a compact 40mm X 40mm X 10mm heat sink and a high-performance 12v Noctua fan. I designed the cooling system to direct the fan airflow directly onto the heat sink, which was strategically placed on the largest flat surface of the case. The 12v fan is connected to the 5V and ground pins on the GPIO header, with the wires carefully routed through the nearest aluminum slot in the case. This under-volted setup ensures an almost silent operation. Thanks to this cooler, I was able to bring the case temperature down from scorching hot to a comfortable room temperature without significantly increasing noise levels. As a bonus, I stacked multiple spare heat sinks directly under the fan, because why not? I'm currently working on an upgraded version that utilizes a blower fan for an even lower and cleaner profile. When it's ready, I'll update this design with the new details. For those interested in remixing this project, I've included both Inventor files and STEP files for your convenience.