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sinara-hw / Driver

Semiconductor diode laser current driver
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Heatsink mounting #20

Open nkrackow opened 1 year ago

nkrackow commented 1 year ago

The current heatsink solution is not really ideal yet for mounting. The PCB spacers take a lot of force in the horizontal direction and the fins of the heatsink inhibit correct hole placement. Note that the spacers in the back are not connected to the PCB. 7a05d0c6-0863-4024-bc87-8b73b2057526

gkasprow commented 1 year ago

@jmoskwa did you design this heatsink in CAD or just took a piece of raw extrusion and simply drilled the holes?

filipswit commented 1 year ago

It's Bartek's heatsink for RnD purpose, since we still don't have final one.

jmoskwa commented 1 year ago

Yes, I designed it in CAD in the first place. The vertical distance between mounting holes was from th begening 30mm. Here's the screen from the 3D model. On top the heatsing, beneath - aluminum plate, that was attached to th PCB. image

gkasprow commented 1 year ago

Did sb calculate the required thermal resistance?