Quote:
Originally posted by Volenti
to focus the jet of water over the area of the block (and colums) directly above the die, I'd assume.
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correct. I had to have clearance for the upper tier of pillars, and I just mad a square to fit around them. I suppose I could open it up to barb size, but my design focuses on increasing water velocity, which the square should help to do. Plus, as Volenti said, to focus it over the center more so as to not have the water just go in and to the side and out the outlets.
Quote:
Originally posted by utabintarbo
As I understand it (I could be full of sh*t), dimple-like turbulators would be most effective on water flowing laterally, rather than dropping in from above. It might be a lot of machining pain for little gain. But it does increase surface area!
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well, I'm not sure about what is more effective with the dimple-like patterns, but here is how I think of it. If you have water flowing laterally across the dimples, there is the possibility of stagnant water (sitting and getting warmer, effectively doing not much) sitting in the dimples, and having the majority of the moving water pass over everything and not mix well with the water sitting in the dimples. With my rather high velocity/high flow block, the incoming water (hopefully) blasts the water right out of the dimples, so as not to let any water stagnate.
Regardless of whether it works well or not, I would REALLY like to incoporate this design over a flat-bottom, as it presents more than 55% surface area gain!!!!
Quote:
Originally posted by utabintarbo
Next, if you are going with a thin (<2-3mm) base plate, structural integrity becomes an issue. Do the "pins" go all the way to the top (no sections)?
BTW, what CAD s/w are you using? SolidWorks?
Bob
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I haven't read up much on the structural design aspect of blocks, so I wasn't sure how thin started to become a problem. If it is less than 2-3 mm as you say, then I have some issues. But I do know this - I want to go thin base, less than .090" (~2.25 mm)
However, I have thick sidewalls around the water channel area, do you think this will be enough to prevent deformation over the cpu die?
The lower pillars contact the cover of the block (no gap, hopefully) and the same should be true of the higher pillars (though most of the top is gone from them). However I'm not sure how completely I will get metal-to-metal shutoff when using the o-ring, it depends how much it compresses.
Is there any remedy for thin base blocks mounting wise? Even I I did make the hold-down to apply pressure to the middle of the cover, the cover attaches to the base at the sides, so it would still be effectively pushing down on the base block on the sides, causing possible warpage over the die. Suggestions here???
oh and good call - i'm using solidworks 2001.