Designing my own Motor Cooler
12-14-2005, 07:10 PM
#47
Originally Posted by XrayFK
A peltier needs 12-14V DC
wondering if putting on the 5.5v ruined it... or wheter i had it on whilst not having any heat sink ruined it....
12-14-2005, 07:38 PM
#48
Originally Posted by qwerty
yeah i know... it worked the first time when i connected it to a 12v for about 10seconds... just to test it, it got very hot... i didnt have any heatsink on it... then i tried putting it on a 5.5 source, nothing happen, then i tried putting back on my 12v and it now doesnt work
wondering if putting on the 5.5v ruined it... or wheter i had it on whilst not having any heat sink ruined it....
wondering if putting on the 5.5v ruined it... or wheter i had it on whilst not having any heat sink ruined it....
12-14-2005, 11:04 PM
#49
i got another peltier module 
here is my peltier setup.... i cant seem to be able to get the cold side cooler than 55deg F.
if i add heat sink/copper plate to the cold side will it make it colder?
also on the colde side it is nt consistant cold. there are areas on the cold side that are 80degF and the coldest part is 55degF...
here is my peltier setup.... i cant seem to be able to get the cold side cooler than 55deg F.
if i add heat sink/copper plate to the cold side will it make it colder?
also on the colde side it is nt consistant cold. there are areas on the cold side that are 80degF and the coldest part is 55degF...
Last edited by qwerty; 12-16-2005 at 11:00 PM.
12-15-2005, 12:29 AM
#50
so the air is blow into the heatsink or suck from the heatsink..?
12-15-2005, 01:19 AM
#51
Tech Addict
Blow into the heatsink. That way the fan is working in cooler air and lasts longer. Not that it matters much in this application. Also, you should always mount the fan so that it blows the hot air upwards. It's more efficient. Hot air rises and if you try to blow it down you're fighting nature and wasting energy. Or should that be wasting energy fighting nature. 
12-15-2005, 02:28 AM
#52
Originally Posted by andsetinn
Blow into the heatsink. That way the fan is working in cooler air and lasts longer. Not that it matters much in this application. Also, you should always mount the fan so that it blows the hot air upwards. It's more efficient. Hot air rises and if you try to blow it down you're fighting nature and wasting energy. Or should that be wasting energy fighting nature.
\/ \/ ----- >rises..but the air is blow down how can the hot air rise?
heatsink->
motor---->
12-15-2005, 02:46 AM
#53
These are my results....
Ambient Temp 79F
Hot side Heat Sink 83F
Cool Side of Peltier 55F
Drop in temperature = 24F
Are those results as expected? Anyway to make my Peltier more efficient?
Ambient Temp 79F
Hot side Heat Sink 83F
Cool Side of Peltier 55F
Drop in temperature = 24F
Are those results as expected? Anyway to make my Peltier more efficient?
Last edited by qwerty; 12-16-2005 at 11:01 PM.
12-15-2005, 02:47 AM
#54
here my motor cooling device, works a treat
12-16-2005, 01:08 PM
#56
I`m going to try 1 OF THESE hooked up to me power supply 14v. I am going to get a piece of copper pipe the same diamiter of the motor and cut a section out so I can snap it onto yhe motor, I also piched up a copper fined heatsink for the cold side.
12-16-2005, 01:54 PM
#57
Originally Posted by Slotmachine
I`m going to try 1 OF THESE hooked up to me power supply 14v. I am going to get a piece of copper pipe the same diamiter of the motor and cut a section out so I can snap it onto yhe motor, I also piched up a copper fined heatsink for the cold side.
12-16-2005, 08:36 PM
#58
Tech Initiate
qwerty,
I have one of these motor coolers that works very well. It has a thick piece of copper between the peltier and the motor clamp. Also are you using a thermally conductive product such as arctic silver between the peltier the heatsink surface? I think this will help transfer heat/cold better.
I have one of these motor coolers that works very well. It has a thick piece of copper between the peltier and the motor clamp. Also are you using a thermally conductive product such as arctic silver between the peltier the heatsink surface? I think this will help transfer heat/cold better.
12-16-2005, 08:51 PM
#59
Originally Posted by fathead
My first cooler would get down to about 9-10deg C on the motor
It will get condensation on the motor clamp
Now I have a heatsink twice as big on it with a 60mm fan and that gets icy.
All up cost me about NZ$60.
It will get condensation on the motor clamp
Now I have a heatsink twice as big on it with a 60mm fan and that gets icy.
All up cost me about NZ$60.
do you run that while racing
12-16-2005, 11:02 PM
#60
Originally Posted by toomanytoys
qwerty,
I have one of these motor coolers that works very well. It has a thick piece of copper between the peltier and the motor clamp. Also are you using a thermally conductive product such as arctic silver between the peltier the heatsink surface? I think this will help transfer heat/cold better.
I have one of these motor coolers that works very well. It has a thick piece of copper between the peltier and the motor clamp. Also are you using a thermally conductive product such as arctic silver between the peltier the heatsink surface? I think this will help transfer heat/cold better.
i just used super glue.
is this artic silver a glue?