Peltier Mod
 

I wanted to discuss this further, but it was getting off-topic in the nueRom report thread, so I thought I'd start a thread on this topic specifically.. (please move if this is the wrong area, but the titans have wifi, soo...)

From the report thread.
that's why I havn't done this yet, but I think it would be a decent idea, to prolong the life of our batteries and wifi chips.

I have seen some creations on the web for soda(beer) can coolers that use these, and I acually have an Igloo cooler that uses a peltier.

Ideas please.....:scratch:

Re: Peltier Mod
 

A peltier seems way, way too complicated just to cool down the phone in your car.

Why not get a vent mount for the phone and just have the air blowing on it all the time? Even if it's just the fan and no A/C, that should dissipate some heat through airflow. You could also just get a portable fan like this and have it blowing on the phone:

http://salestores.com/ko4012vmicar.html

Out of curiosity, what do you use the WiFi for on the road, anyway? Wouldn't you have to switch networks like crazy?

Re: Peltier Mod
 

Navizon pays to "map" wifi and cell signals. so my phone is plugged into power, using all the radio's 8-12hrs a day.

also my van is loud enough without the fan blowing (hard to talk on the phone even with windows up.) (yes I know I need a better headset)

I would just be nice to "forget about it" and have a peltier set to keep a constant temp.

If I get this set up, I will likely mount a weatherproof box on-top of my van for better reception. (with the heatsync vented)
also when I get my touch pro, I'll have a spare mogul I'd like to put in friend/fam car to make me more $, but I don't want them to have to do anything.. kindof a "black box" setup

edit: winter is coming and a peltier could also make sure it doesn't get too cold and crack the screen

Re: Peltier Mod
 

yes, I know it may not seem nessasary, but I am a geek after all. and I have PLC equip/knowledge so controling it is the easy part..

I'm just not sure on the logistics of mounting it so it doesn't ruin the phone, and actually cool the battery/chip

Re: Peltier Mod
 

what about the cooler unit they use for laptop cpu? mount the heatsink and fan in your cradle and go.

Re: Peltier Mod
 

yea, apparently nobody gets it...

the sugestions are good, don't get me wrong, but I'm trying to avoid moving parts.

also, the hold up on this little project of mine is figuring out / deciding HOW to MOUNT such a thing to the phone..

so anybody got a suggestion on the best way to mount?

Re: Peltier Mod
 

would need to find your self a decent car mount that was maybe one of those gripping ones that have the foam to hold it in place, but deep enough to slide your peltier in behind the phone. But in all honosty a custom hack of a car mount and cooler would be required so would need to bust out a dremel, and other modding tools. Power may also be an issue since you need to run this and your phone, and I'm not sure your car power outlet will be able to run both properly.


So to sum it up there is no easy answer to your question.

Re: Peltier Mod
 

again, thanks for the suggestion, but I'm not tryin to mount in a "mount" rather TO the phone, as heat is transferred best if there is phyical contact....

soo, one thought of mine is to modd the battery cover so a heatsync/peltier actually touched the battery, but then again the battery has stickers on it....
also I really want to make sure the wifi chip stay's cool, so it will function for years to come. but I'm not sure just cooling the battery or having a fan blow on the phone would do this.
the other thought is to have a thin metal (copper) strip that gets sandwiched under the battery so it makes contact with the phone's metal sheild and the batteries metal casing.

EDIT; just so i'm clear, this is an "extra" phone and not my primary. so this would be for a "car phone" type setup or just simply a "black box".

Re: Peltier Mod
 

How much are you earning from Navigon? It better be a lot to be worth all this! Please post pics of your setup when it is all done.

Re: Peltier Mod
 

eh, it's not all about the $, but navizon has almost paid for this 2nd mogul. and after that it's all gravy..

I most definitely will post pics WHEN I do this. :headbang:

Re: Peltier Mod
 

Well if you don't mind hacking it up then pulling the thing apart and modding some heatsinks right onto the chips inside would be sufficient no colloer needed. If you want to cool battery(Which likely would be the worst culprit for heating up) I would say get a new battery door and you can mod the cooler into it. Yes it would be best to have direct contact but that isn't possible, and piece of copper would ore than likely cause the cooling fro the cooler to be diminished since the way the cooler is designed(At least should be) Would be to have a high thermal conductance on the top side anyways so no copper needed, and just cut the cooler down so you can have it pressed right up against the battery. I agree I want pics when done though :-p and I'm still a little worried about power but I can't remember what the adapters put out so not sure it'd be a huge issue.

Maybe if I can find one I'll try this with my 6700 that's sitting around :-p

Re: Peltier Mod
 

well, I have my van already set up with a 2nd deep cycle battery and a isolator, and the phone would have it's own power adapter. the peltier's I have take strait 12vdc, but I may have to control that based on the cooling (or warming [in winter]) that's needed.

haha, ok, duh.. I can use the "hot" side of the pelt to vent over the screen so it will stay above freezing in winter.

yea, If taking the phone apart is "needed" I will likely try on my 6700 first... but that wifi chip seems to be pretty solid.

Re: Peltier Mod
 

Ya I honestly don't think you need to take it apart and heatsink any of the chips. I find any usage while battery is charging causes the heat so if you use the peltier to off set the heat on the battery you should be fine everywhere else. I'd at least start that way get a spare battery door and get the cooler mounted pressing to the battery.

Re: Peltier Mod
 

hmm, you might be right, and if so, I may head a completely different direction..

maybe, I'll mock up a slim heatsync to fit where the battery goes, and piggyback the battery outside... hmm...:scratch:

Re: Peltier Mod
 

I was thinking myself if you could get the battery mounted outside the phone would be best, and if you could find a way of getting the phone to think it's got a battery but is connected right to the powersupply, with a relay set up so that when the car stops powering it it then switches to battery automatically(Probably cause a reset but might work) this way you get rid of the heating battery issue altogether since it isn't being charged hile in use anymore. Oh and I still don't think heatsink the battery will help much. At least unless you get a fan on there, and then you are back at where you might aswell have the peltier.

Re: Peltier Mod
 

So did you ever get anywhere with this, or back burner it?

Re: Peltier Mod
 

kinda back burnered, as I've been pretty busy lately. I did however aquire a mini-fridge/cooler that has the pelt already set up, would just need to decide how to have it make contact with battey/ect.. if I go that route...
one hold up I have is the fact that I don't have any car chargers that output more than 550mAh, and I can still run the phone dead if wifi's on.

I also found out last night that one of my friends is working @ interstate battery, so I may have some extra batteries to "play" with soon, for an external mod.

Re: Peltier Mod
 

For my cooling solution, wrap my wrist strap around the cup holder which is above the air vent, and then I keep wrapping it until the mogul hangs perfectly in front of the cold air. No heat issues =]

Re: Peltier Mod
 

What were you going to do with the moisture the peltier would create? If you cool the parts inside your phone to a temperature that is lower than the surrounding air you would have condensation in your phone. Think of a soda can fresh from the vending machine sitting in your car. Do you get condensation on the outside of that can? Picture that happening inside your phone.

Re: Peltier Mod
 

no a/c man
yea, I had pictured this, that's why I havn't done anything yet, and am still thinking about the whole thing... and actually, I think I may go another route, but I may use the pelt to cool an enclosure for the phone..