Looking for a cooler for a fanless machine

deset

deset

deset

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23 May 2012
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We have Flytech K790 AIO fanless units in restaurant kitchens, however we are finding that the main failure is due to the heat in the restaurants causing flash cards to die.
Due to the amount of grease and fat that builds up, using fans is not an option.
Are there any cheapish gadgets which can help keep the internals cool?
 
You can run a passive water cooling loop, but i imagine theyre not what ya after in a restaurant, maybe you would be better fitting grease filters like from a kitchen extractor fan, and then just using a fans.
 
Get a box, cut 3 holes in it, one for the screen, one for intake and one for exhaust. Vent (via standard air ducting) cool air into the bottom of the box and hot air out from the top.

Run the air ducting out of the kitchen.

You may require a few fans, or something like a bathroom extractor, one going one way, one the other.
 
Thanks for the replys guys.
Unfortunately we have 100+ of these machines in various restaurant kitchens around the UK.
When one goes down, we bring it back and refurb the unit which is when I would like to implement some new cooling solution.
Fans are a no-go as some of these machines sit in shrouds, the inside of these units are sealed anyway to make them grease proof and waterproof to a certain extent (splashes etc.).

Has anyone had any experience with the peltier thermoelectric coolers?
 
The peltier will require even more cooling than the component.

In the general vein of internals cooling maybe some thermal pads to link to the chassis or bigger heatsinks.

If its flash cards (sd cards?) dying I don't see that much can be done if airflow cannot be improved as it would seem the heat of the environment of the restaurant is the main problem not so much the temperature of the main heat generators within the unit.
 
If it's the ambient temperature combined with the internal temperature of the machine that's killing the cards, how about running a small length of cable and mounting the card in an external box?

Kind of a weird solution, but it might just keep it cool enough separating it from the other heat-generating components.

If it's just the general ambient temperature of the kitchen that's too high, you'd really need some kind of active solution.
 
Ok...

Well without seeing what these devices sit in it's difficult to advise, but if they are in a shroud it sounds like a badly designed one, or one not designed for the task.

So how about re-designing it? Get something custom made to do the job.

Take a look at car amplifiers, they are basically one large heatsink...but they get hot...very hot, so an adaptation will be required for your unit. Car amps aren't really designed to touched while they are on, but your device is, so hence the plastic case.

Maybe a plastic case with a massive heatsink on the back? You will probably have to take the electronics out of there original case and have them built into this new case, along with attaching the hot parts to the heatsink via maybe some heat piping?

With 100+ units we aren't talking a diy job really, or a hack-it-and-hope type approach, so I would approach a pro.

Of course you could always fit aircon into the kitchen and put these units near the outlet. You get a working unit and happier staff :D
 
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