So I was just watching a YouTube video about adjusting the Lymow’s tracks, and noticed something interesting.
The Lymow robot has a cooling fan directly above their battery pack, and the pack itself has heat sink fins that are cooled by the fan.
As we now know, sometimes Yarbo’s batteries have a tendency to overheat in the summer. I just thought it interesting that Lymo thought about this problem proactively and designed a battery cooling solution from the start.
Yeah a heat sink would be awesome.
Here’s the battery with the integrated heatsink. The fan blows directly on the heatsink.
They also use LiFePO4. Maybe that was necessary for that chemistry. Agree a heat sink and fan with ventilation would be ideal.
LiFePO4 is ideal for a robot that doesn’t need to work in the winter. Good choice. And the batteries should last forever.
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Forever is a LOOOOONNNNNNNGGGGGGG time.
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I wonder if a peltier junction with heatsink could be added, then you could do heating and cooling…those aren’t all that efficient though.
Back in the day, I used to experiment a lot with peltier modules. Yep. Power hungry, but fun to play with. Nifty invention.
Nowadays they build them into battery powered neckband devices and market them as personal air conditioners. They actually work pretty well.
My only concern with the heat sink is winter time it would draw heat away from the battery, I’d think. Peltier would definitely be too power hungry.
Yeah it’d have to be in a controlled channel that could be blocked or have stagnant air unless needed for cooling, but now you’re getting yet even more complex.