Heat Sink Panels anyone?

good idea depending on the stacking arrangement i supose...

need to some how have the heat sink in the horn mouth to ensure contact with the air really. i think these cabs would benefit alot from less thermal/power compression

how much are these tom?

they're not too bad - not as bad as you'd think. I'll cost em up and stick it up.

I hvae thought about fans but think it was over compicated - a cab really shouldn't be designed that it requires such compications to cool!

Perhaps having the panel beneath the driver in the mouth raised from the surface - you could even have 3 or 4 fins spaced apart to really increase surface area. So long as you have good theramal conductivety all you'd need is a few bolts running through coupled somehow to the driver. Sprung loaded plate ar the like.

I'm gonna play with this some more...

The 3rd picture shows the smaller ali plate in the panel directly behind the driver, sorry about the shadows,.

I think thats the optimum place to put a heat sink panel as its so close to the driver, cant be done as a retrofit though as the brace is in the way as eltron said.

Some info on designing heatsinks here:

http://www.molalla.net/~leeper/heat.htm

Ive not been through all the maths my mates better at that sort of stuff than i am, the jist of it was that active is much more effective than passive for the size.  We tested a cpu heatsink and fan bolted to a smoke machine heat block and it dissapated about 300W of heat, wich would be very usefull to the ciare over long term use i think.

A passive heatsink would be more reliable yeah i aggree tom, but i couldent see a straightfoward way of fitting a big enough heatsink to the cab and haveing it in contact with the driver and pole peice.  CPU heatsinks are very efficiant for there size and there cheep and easy to get compaird to custom heatsinks.  We got some silver epoxy glue, its a stong glue with good thermal transfer, i think were gonna stick all the bits together with a ring plate round the pole peice vent then put a big gasket on it and bolt it all down.



Edited by Timebomb - 08 March 2009 at 4:28pm

What about using those heat tranfer pipe thingies nerds use with computers? Aluminium block attached to the driver and pipes leading to a heat sink somewhere in the horn mouth or access panel

Well, it could work I guess.

Heat pipes work like this:
http://en.wikipedia.org/wiki/File:Heat_Pipe_Mechanism.png

As you can see, it's a closed system and fro the outside looks like a piece of copper pipe.

It could be the question of whacking these down the pole piece as close to the VC as possible, then having the cold end in a...cold place, like an ally panel in the horn or out.