jondilly1974
Speed running apprentice, motor Slayer 🤘
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- Toledo, OH
- Arrma RC's
- Granite
- Infraction
- Kraton 6s
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The HR fan mount I use is a mini heatsink that probably pulls minimal heat out directly, but is open in the inside to allow airflow to hit the can.None taken. Depending on the heatsink, mostly. I've seen some that are open where they connect to the motor, as in, the ribs of the heatsink don't connect at the base across the middle, only on the ends. Additionally, if the contact patch between the motor ribs and heatsink is adequately conductive (clean, surface area, materials, etc.) The larger fins of the heatsink may draw out enough heat and dissipate it fast enough that it can make up for the lack of airflow around the can itself. Kind of like "heat pipes" on PC cooling systems.
As far as heat pipes on a CPU, they make full contact to the CPU. Any air gaps and they fail very quickly. People lap their CPUs to ensure the smoothest and thinnest surface area between the core and the block. This principle almost refutes the idea that static air between the can and heatsink is a good thing. It’s like a thick blanket trapping heat.