Liquid Cooling Build
Anatomy of a BLAT.
No not that one. This one - Bomac Liquid Audio Technology. It started out as just the BLA, but applied to a 2.1 speaker system it resolves to Bla, Bla, Bla. Not good. So added the “T” and was quickly advised by JB (lehmanhill) that I had moved from the shop to the kitchen.
I have several PCs with liquid cooling and mostly out of curiosity wanted to apply that method to audio. Purchased two of these on a whim and collected the necessary parts from the stash. No way to drill into the coolers so a standoff plate was built.
Located the mounting hole by spreading compound on the chip which was soldered to the PCB with standoffs attached.
Attachment 309657Attachment 309654 Attachment 309656 Attachment 309655
The simplest, though not most efficient way to combine the plate and the cooler was double sided heat transfer tape. They were clamped together overnight for a solid set. If I do another one I'll make some sort of bracket that will allow the use of paste instead of thermal tape.
Attachment 309658 Attachment 309659
Mounted amp module to cooler and cut tubing links.
]First shot was built on plywood frame. The cooling elements were all standard 80 mm format.
Attachment 309664 Attachment 309665
Fill port/air release worked great but I didn’t like having the liquid that close to the amps.
Attachment 309666 Attachment 309667Attachment 309668 Attachment 309669 Attachment 309670
Here the system is making cool music with no leaks and a stable temp just above ambient.
Second attampt was centered around the idea of keeping the liquid below the amp. Cobbled up another woden frame and placed my chin firmly on my palm and began to ponder.
Attachment 309678 Attachment 309679 Attachment 309680
Started fabrication of base for cooling system with 1/8” x 2” aluminum angle from the local hardware store. Transformer brackets are from ¼’ x 3’ angle.
Attachment 309681Attachment 309682 Attachment 309683
Attached 1/16” corner braces with two part epoxy for both stability and squareness.
Attachment 309684 Attachment 309685Attachment 309686
Very Cool !!!
I have been wanting to do something like that for Year's !!!
Great Job !!!
Photo of lap/inset construction.
Attachment 309695 Attachment 309696 Attachment 309697
Underside with support/feet and a touch of Bondo for the oopses from hand cutting.
Holes for bottom supports are countersunk for flathead screws.
Attachment 309698Attachment 309700
Corner reliefs for wire paths on transformer bracket.
Attachment 309701Attachment 309702
Looks like it’s going to work so now on to the reservoir.
Initially hoped to do a combo pump/reservoir with a fish tank AC powered unit. But it was too big for the cooling box. As luck would have it, the seven year old pump in my main PC lost a bearing during this time so it wasn’t a total waste.
Right method but still to awkward for installation in the BLAT.
Attachment 309704 Attachment 309705
Gave up on the combo unit and built a res I knew would fit.
Shows outline of inlet deflection plate and square outlet suction tube.
Here are some leak test pics. Problems can be masked when the system is active so an overnight non-powered proof was done.
Attachment 309708Attachment 309709
Oh, I forgot about the signal. With my chin still firmly mounted on my palm (visualize “The Thinker”) the following developed. There wasn't enough room to mount the posts in the standard position without inteference with the cooling tubes. A 90 degree flip did the trick.
Attachment 309712 Attachment 309710 Attachment 309711 Attachment 309713 Attachment 309715
More corner removal to prevent the possibility of a short from insulation damage.
Looks like everything fits.
Attachment 309716 Attachment 309717
Wall wart DC socket for pump/fans, AC inlet with self-contained fuse and safety ground lug.
Putting it all together with wiring. Hoorraay!
Attachment 309722 Attachment 309723 Attachment 309724
Cut and tape together possible cover from postboard. It was then glued together and all the tape removed.
Attachment 309726 Attachment 309727
For the purpose of collecting some temperature data, I also made a standard cooling rig for comparison/discovery of efficiency.
Attachment 309729 Attachment 309730
Still have to decide where to place remote FE LEDs, or change to a lighted main switch.
This is the smallest format - 40mm, but 70, 80, and 120 are available if your amp can heat your music room on an autumn afternoon.
There you have it. The anatomy of a BLAT. Great fun and a worthy challenge. Probably not where Dario thought his excellent design would end up, but I couldn't resist. :devily:
Cooling liquid is the same as what has been used in the PCs.
Andrew, I got two answers to your question:
1. It's the same as the answer to the question "Why does a man climb a mountain?"
2. A three letter word that starts with "F" and ends with "N". You may or may not be familiar with the concept.:D
P.S. and maybe a little useful discovery.
|All times are GMT. The time now is 10:11 AM.|
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright ©1999-2016 diyAudio