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Better than Direct Contact Heatpipes - Page 4

post #31 of 33
Quote:
Originally Posted by DuckieHo View Post
Any other thoughts?
Interesting design.

I think the best way to maximize the effectiveness of the heatpipes would be shape the bottom part into a square, rather than just flattening the bottom. That way, if all the bases were square and transitioned into the round pipe, you'd eliminate all the gaps and be able to pretty much make a base entirely out of heatpipes.
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post #32 of 33
Quote:
The issue with direct heatpipes is there are terrible gaps. So how about base with heatpipes solder into the base? The base will have holes drilled into it horizontally. Then the heatpipes are bonded to the base. The inefficiency of the bond doesn't matter since the heat is transferred via the gas INSIDE the tube/base. This will give best of both designs. More efficient heat transfer to the heatpipe (one material instead of two materials and gap) while being about to maintain a flat base.
I'm not sure I get what you are saying here. This sounds just like most heatpipe heatsinks out there. A heatsink base typically has grooves, with the heatpipes soldered into them.

What am I missing?
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post #33 of 33
The difference is that These heatpipes won't sit in groves on the top of the cpu block.

The Heatpipe will end at the side of the CPU Block. and the End of the Heatpipe will actually be the side of the CPU Block.

soo...

Heat goes from CPU - > Heat Spreader - > Thermal Paste - > CPU Block - > Gas Inside the Heatpipes.

a Normal Cooler would be

Heat goes from CPU - > Heat Spreader - > Thermal Paste - > CPU Block - > Side of the heatpipe - >Gas Inside the Heatpipes.

However, i think it is worse then the designs with the Heatpipes contacting directly with the CPU, even though there are gaps between the heatpipes and rest of the CPU Block. In these designs there is more surface area contact between the heatpipes and the CPU. Instead of the design relying on the heat to be transfered to the gas through a small (2mm? i dunno wat size the heatpipes are instide) exposed part of it, a large part of the Heatpipe contacts with the CPU and that whole part heats up and heats the liquid/gsa inside the heatpipe.

What i would like to see is something like the current designs, fill the gaps with copper/silver. IE, make a base with heatpipes like the vendetta (i think that does it?) and sit the base in a container of molten copper sized just right so it will be the right size and just have the heatpipes already flattened and resting on the very bottom of the container, let it cool/harden and there you have it. A Heatsink with direct contact heatpipes and no gaps on the bottom between the heatpipes and rest of the base.

hope you can follow it ok
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