My ESC is getting really hot after only 3km. I know that it affects performance and I don’t want to blow up my ESC. A heat sink doesn’t work well IMO. I though about putting a small fan in my enclosure. Anyone tried that or would it work in the long run? Or, a heat sink is enough?
Also, what’s the current cooling situation? Is it just sitting inside a sealed enclosure? If heat can’t leave the enclosure fast enough a heat sink could just make it take longer to get to the same final temperature.
Cutting a hole and mounting the ESC over it, exposed to outside air, can be a simpler solution if you don’t want to reduce power.
It is a Tenka wanna be Unity. I am using a backup battery 10s4p which the BMS is 25A max, but I’ve put the motor max to 40A. May this be the issue? Also, my enclosure has my battery and ESC in it and it is a pelican case. I doubt cutting a hole is enough by exposing the ESC but if it works, why not.
Changing your gear ratio for a lower no-load speed or increasing your battery voltage and changing the gear ratio for the same no load speed will keep things cooler.