Personal Cooling Unit
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- Опубликовано: 11 сен 2024
- Find more at the Maker Shed: makershed.com
In this project, I show you how to build a thermoelectric cooling unit. This is a miniature refrigerator that you can attach to your wrist. It is able to quickly cool your whole body. You can use it to cool off after working out in the heat or you can just stay at a comfortable temperature without having to air condition the entire building.
Learn more here: makezine.com/pr...
You can be overclocked now.
+White Chocolate HAHAHAHH I DIED
+White Chocolate ha
+White Chocolate I bet he bought steroids right after this buddy.
+AGD White HAHAHA Xd
+AGD White DEUS HAHAHAHA
Wouldn't recommend doing that as it can give you a cold burns, if the peltier element is strong enough ;)
hence the 555 and the potentiometer
Frostbite happens around 0°C. If it can get that cold, a thermistor can be used so that it shuts off before it reaches freezing temperatures
@@autismlifehacks5233 Even if it's 15°C, I wouldn't want to have something that cold in contact with my skin all the time. There are reasons body temp. is around 37°C and peltier wouldn't just affect the surface of the skin.
@@ElectronPower If it's above 15°C, I'm confident that you'll need something as large as a cooling vest to help you beat the heat
@@autismlifehacks5233 I'm talking about the peltier on your skin, not the ambient temperature...
Thank you so much iv been searching for this EXACT TUTORIAL online and you literally made exactly what I was looking for. I had an idea of a cooling system and you just showed me how to do it and nobody on RUclips could. I'm going to use this for marching band this summer it will help a TON THANK YOU
Did it work?
I overclocked my self to 5.3Ghz
xD
Prashant Batule idle temps 69`C Load temps 420`C
What is your vCore at!?
LOL
MajorSWEG I overclocked my self 2.78 tera hz
I find it weird how many people are talking about how useless this is. I don't think they are aware of the term "heatwave". When it gets hot enough, you don't care if it will look bulky and stupid.
yea I live in Phoenix AZ, they should come hang out here in the summer, they can laugh at all the people who would wear this in public while their salty tears get lost in their salty sweat.
... or you can like ... drink cold water. Or wear wet t-shirt. Both cheaper, faster, lighter, without risk of catching on fire (when dumb and leaving the battery poles uncovered) and you don't have to drag around another kg of useless things connected via cables that restrict your movement.
It works in a welding helmet and use a copper in the headband....and no one sees it. I use Milwaukee 12 batteries and ones on the charger while the other is in my helmet keeping me cool as can be ...in confined spaces its a life saver..
@@STruple12 The sheer amount of cold water you'd have to drink for a one time decrease of one degree is hilarious. By comparison, this is way lighter - as in, several pounds lighter - and it won't have you running for the next restroom half an hour after use...
@@Alexander_Kale Water's specific heat capacity is 4200 Jkg-1K-1 and Air's is 993 Jkg-1K-1 therefore water has 4.23 times more specific heat capacity. Water is 784x denser than air. Tell me more about that "sheer" amount, please. And you forgot about the wet t-shirt = no drinking, same effect.
If you like to make simple electronics then knock yourself out but other than that it is simply an impractical toy.
When I was young I tried to design a portable 12 volt peltier water cooler for a vest that could be worn under motorcycle gear using pwm and mosfets through an arduino to control the water pump and peltiers. The things take a lot of power unfortunately which would explain why there's nothing out there on the market like that. I never got mine to work good enough to be worthy of further development. They're really neat though! I'd love to play with them again!
Adam Savage created a personal cooler using the worlds smallest refrigeration compressor to use inside a costume. It is battery powered and worked really well!
you got the wrong materials and design i guess
I think if you had another go now you'd be pleasantly surprised with the advance in technology. I really want to try and put together one of these as low-profile as possible and then try and work it into the neck of a shirt so it delivers cooling to the back of the neck, and the batteries sat in a pouch in the small of your back, either a couple of 18650s, or a lipo pack, but that probably goes without saying. oh, and bluetooth, because why not
The cringe you make when you think at first that the screwdriver is a soldering iron.
"NOPE NOPE NOPE That's gonna hurt! It's gonna... Oh. It's a screwdriver, nevermind"
Cool Project! Also great to see That Make is Using mm (MilliMeters) Aka Metric instead off Imperial. Also with the Motor circuit. Use a MOSFET to control the output. (Since you're already using a N-Channel one to switch the Relay) It will make it less noisy.
Americans don't really know it, but they've been using Metric for many years: one inch is exactly 25.4 mm BY DEFINITION, for example.
Isn't 1 inch 2.45 mm ? But yeah America
Oh just saw that you said by example xd
Jac Goudsmit
If you're doing machine tool precision work over more than 6", 25.4001 will keep you from getting rejected parts.
Honestly, distance is distance and units are units. People with Imperial scales will work to Imperial measure while people with Metric scales will work to Metric and nothing of that will change the actual dimensions worked to.
Simple fact is that "Americans" often work in Metric as well as Imperial and have for decades. There is no hidden measure that anyone is "really" working to, scales are arbitrary. Ask yourself why 1 meter is not what it was originally intended to be, a certain fraction of the size of the Earth. Yes, because the people who invented metric measure got the size of the Earth wrong by over 10%! The length of a Meter is based on an ERROR and that, my man, is arbitrary!
*****
2.45 cm, rounded to 4 places. The reality is not so neat.
Would you go out with something like this on your wrist?
As long as it work, i would
Kopeke88 obviously i mean as long as it doesn't make me look like a dumbass
dumbasses would be the people suffering by the inmense heat :P
why not, go in da club and let the bitches see how COOL you are
if it works it ain't stupid.
Walk around public with that...
Jon MRC Suffer because of what strangers *might* think?
You should be more important to you, because strangers really don't give a shit, and why care if one or two do?
***** Calm down there, its only a statement that i found funny. No need to explain the principle of the public. I get it, sometimes i dont do my hair and just fuck it.
Jon MRC I AM CALM you stupi... Oh.. Right, that reply was goofy, my bad :) Dunno why I was bitchy, I don't see walking around with one of these either..
But it would be awesome to have this when sitting around between skydives melting in airplane hangers all summer in Florida and Georgia. I'm thinking a 2x larger contact area, kickass fan, and 99% of the time have it running off a deep-cycle marine battery parked under my camp-chair.
And when I say it 'would be' awesome I mean it will be, by this weekend I hope, since I've got tons of spare puter parts and already use the huge battery setup rigged for my laptop, cameras, etc. It's going to be so hot again this weekend that my fan is nearly useless, feels like a hairdryer..
***** I know the feeling. We have those huge ass fans in the hanger i went to. On the way up in the plane they gave our team ice to suck on but we had to spit it out or finish it before we jumped. Haha
lassi kinnunen I now, Thermoelectric cooler is not efficient
Use nylon screws instead of metal. This will keep the heat from traveling through the metal screws. Way more efficient.
Why would you use a cooler like that, if our body is already getting watercooled?
To cool the "water"
+Farnømat ;D
What ? Are you trying to say you've never been uncomfortablely hot?
Because when the weather gets hot and high humidity, the evaporation cooling system used by our bodies gets less efficient.
come visit Arizona in july, see just how good your bodies water cooling is
I bet the sound of that relay is maddening.
lmao
I was thinking the same thing. Why not just use a MOSFET?
It's 2024 and this guy was 10 years ahead of its time.
You could use a potentiometer to vary the output but it would drain battery power fast. The 555 timer method is more power efficient
Using lower voltage produces more gentle cooling. I use a 3.7 volt (charges up to 4.2v) 18650 size lithium ion battery.
You have used one of these? How is it? Are they viable?
@@logans3365 They work well. A thin layer of heat-conducting gel is used to make them work better.
@@ndrthrdr1 I want to doesn’t one everyone can use, possibly placed on the lower back so that it’s not cumbersome.
if you make a jacket with thermoelectric cooling unit then it will make more sense
I LITERALLY just made one of these.. Right before your video came out..
LITERALLY
put the fan at 45'(deg) to reuse the 2 bolts
This is why I'm single.
I love peltier modules. Lots of good things you can do with em if you're creative.
Richard Noggin Do you have some websites with ideas? I bought one of those and im planning of using 9 volt batteries will it work with 9 volts? And also the fan will it work with 9 ?
This is called peltier.
Don't forget the Seebeck effect and Thomson effect!
Yeah I am going to walk around with a Fan on my wrist and a huge ass 12V Battery, great idea lol.
Go into like Home Depo like that "What's on your arm? "Don't Worry bout it, Where is the lime and Rope by the way?"
Ordered the parts online today. Thanks for a great video.
I am making a small change. Aluminium is not very toxic but I am replacing it with stainless steel.
Rio Jazuki but aluminum is a good themal conductor while stainless steel is a poor one. There's a reason all expensive stainless steel pans have a chunk of aluminum or copper sandwiched in the bottom.
Nick Horvath Silver->solved. (Just kidding btw)
I overclocked my self to 5GHz today, thanks to this project
The Borg will surely appreciate this.
guys please, this is very very useful.
Hm... heard of a file? You know, those edges of that alu plate seem quite rough, being so close to your veins... And when you cut the foam, you really should use a sharp knife... Good idea, perhaps, but execution rather poor... Especially for something as big as MAKE channel...
good tutorial but i would not wear it on the street i been thinkin how about cooling a cpu with one of these ?
well aslong as you use enough thermal paste I dont see a problem. I love this.
I wonder, does your hand get cold? I just googled how the veins run in the wrists and it seems the hot blood into hand goes via the middle of the wrist. So, If you put a piece of that insulating material there, in theory, you would get hotter hand, which would exchange heat to the surrounding air more efficently and the bloodflow to the heart would be cooler, thus dropping your body temperature more. It propably wouldn't be more powerful, but it would propably be more efficient. Having portable power source. How about making a solar powered hat? With a propeller of course.
Where do you put the huge lead-acid battery? xD Very cool idea however. :D
There are much smaller lithium batteries you can use, anything at 12v that pushes enough amperage to work the electronics, which shouldn't be too much anyway.
I was going to make a circut that mounts on my belt and also runs a small pump to run a water cooling loop which I'll mount in a camel pack
Tex81024 it would all run on AA batteries, I would then tweak the circuitry some
Tex81024
You shouldn't need a water pump actually...
With a system that could fit in a glove or shirt you could just rely on the movement cause by the temperature difference
If you insist on a pump any tiny impeller would work, just make a housing. Or use a magnetically inducted impeller... put a magnet on a fan blade and use its passage to turn your impeller. No need for new wires like that.
Ha, I put mine on mySplint for my Carpal tunnel. Works like a charm, without the fan though.
Sandwich a tube of salt water between two gloves, low profile fan and heatsink and BAM! INSTANT GLOVES FOR SUMMER!!!
Maybe just sew it to a pair of nylon gloves that you can pull other gloves (like, for work) over so you essentially have an insert with the cooling unit on the back of the wrist.
It would help cool more blood returning to your body and avoid frostburn from the unit only cooling (and numbing) one spot.
This is one of the silliest projects that I have seen make do in quite a while. If you put something on your wrist to cool down your blood, nothing will happen outside of your forearm. The rest of your body will heat the blood back up and almost no effect will be felt. I could also imagine your wrist becoming very numb and possibly losing some sensation in the accompanying hand because the veins are being restricted because of the cold.
Dante LoCicero ruclips.net/video/kvUMCip-r4A/видео.html
Isn't there an MIT project called wristify that is pretty much this project?
It's nice to know people still make comments like "it wont work" without actually having any engineering knowledge. Did you know peltier coolers are sometimes used to boost the cooling on CPU's? Did you know that these little coolers can, if driven properly, remove over 100 instantaneous watts of heat energy per square inch? Sure it takes some juice to do it, but it can be done. As for the looks, people are so closed minded and seem like they look at the world with blinders on (Blinders, you know those things they put on horses in the city to keep their view narrow? I know a lot of people like that). This is just a prototype concept. I can already envision this thing using a narrow string of peltiers with tiny low profile fans pulling heat through custom designed heatsinks inside of a small housing including a lithium polymer removable battery that could be worn around your neck on a hot day and maybe provide 1-2 hours of relief per battery or charge. Open your mind. There is no box.
Can I use a dual tower heatsink?
I had this idea the other day, this video was made a king time ago, there area a lot of things you could to to make it more efficient and wearable.
Why are there not more videos exploring the idea of personal cooling devises to replace AC?
I have on too, it called an ice pack...
You know whit the right adjustments you could use that to make a temperature control suit. All you need is a way to switch the plate around so you can have both a hot suit for the winter and a cold suit for the summer.
lassi kinnunen
True but with the right materials it could actually be relatively cheap. Plus if you have a solar panel and replace that battery with a smaller rechargeable one. You can have that thing running all day and night.
this is the new fashion STAYING COOL!!!!!!!!
Why did you use a relay to switch the peltier-element on and off? A P-channel MOSFET would be much more suitable since it can switch much quicker and is a lot less bulky. If you don't want to use a P-channel, you could use an N-channel with a slightly different, but much simpler, circuit.
Hope you enjoy the clicking of the relay. Why not a MOSFET?
go with 5 volt fans. and a pelitier unit that converts heat to dc power.
Doesnt look very ergonomic, how about placing the fan and cooler on the opposite side (like a watch) and use heatpipes to cool the plate?
relay, seriosly? why do not just use N-chanel mossfet.
Cheapest mossfet can provide 30A and 60V with small HS
And how is the performance of the cooling unit?
I made something similar with a 60w peltier, granted my setup is not exactly the same and mine could be somewhat defective but I couldn't ever get mine to freeze water, it does get quite cold maybe 20F colder than ambient and the hot side absurdly hot but it cooling capacity is a bit unimpressive, not sure it would keep me much cooler although I haven't tried placing on my wrist.
I am attempting to use mine to keep me cool in Arizona summer though and 20F below ambient wont cut it in the summer as it could pretty easily still be in the 100s at that rate
What would worry me more about this isn't the style, after all one could dress it a little bit better, make a "stylish" housing for it (depending on one's sense of style, be it sci fi, steam punkish or whatever...
It's the power consumption!
At no point do they talk about it, what's the wattage of the Pelletier plate?
I highly doubt such a circuit could function for any decent length of time, excepted pwm'd to within an inch of it's life as far as wattage, and heat dissipation goes,
If to get any sort of autonomy you've got to reduce the thing to a barely efficient mess, that's no use,
Whereas, although heavier; a bacpack containing a large thermos of fresh tap water, with a water circuit comprising a small pump, like an aquarium pump, some vynil tubing, and a modified watercooling block!
Although still as dorky, that oughta work for a decent amount of time, though you'd have to trade wheight to get better autonomy (usually cold tap water exits the faucet at around 15°c) (with a low pressure cuff arround the heat exchange pad, you could get away with a colder fluid without causing capillary contraction and decreased bloodflow to the skin surface)
(But after all, that type of solution allready exists with water circulating vests trading energy transfer efficiency (aka an Al or Cu block on the skin) for bigger surface of exchange...
Might still be more efficient though!!!
i was researching peltier modules and optimum heat sinks to make exactly this. I was very sad to see that it had already been done :(
I want to try and put this on my forehead (CPU) while I'm studying to cool my head. It gets really hot after few continues hours and need to cool off.
Does it work? wouldnt mind seeing it in action
Cool idea, funny since this was first brought up by some students at MIT if I am not mistaken. Anyways, I would definitely make this with some old peltier coolers but who wants to carry around a big 12v battery? Cool idea anyways
you should try to attach a small 9v battery that box is way too big to carry around
Does this require the foam for insulation or is it just there to improve the efficiency?
I have all the components, I welded some of them ,but I dont know the positions, ( I never solder a circuit board before) help help,it could be a video showing how to do the control circuit board
Did it cool you on a hot day? And how long will the battery run?
Why Is the LCD on your caliper flashing? That seems inconvenient.
I would take this and make a headband that goes over the forehead
So I can overclock myself?
+Matthew Ferrie There you go, now we're talkin!
amazing... any improvements made on this?
How effective is this? have we done any controlled testing?
Would like some way to find out if it works. Ie does it really cool your blood, ie your body?
Don't know, but if someone could kind of do a simulation with 3 ltr of fluid going through 50 meters of 98.6 F temp tubing and about 40 mm this tube is kept at 40 F.
Would it cause any difference? Now that I have stated the above, it does not sound possible to me. What is 40 mm cooled tubing, in comparison to 30 or 40 meters of heated or regulated Y heated tubing. Nope don't think it would work. But would love to be wrong.
How many watt & volt of your thermoelectric peltier?
can this device be any smaller or just like a watch since it was 2014 the last you made it?
Works great on the forehead!
How many watts is the whole system?
i want this badly
and can we use usb powerbank 5500 mah to light it on?
+Willy Wijaya If its not some fake, Chinese alternative piece of shit that says it can hold 5500mAh but instead only holds 400mAh, then yes.
no
Thanks to this I can run Minesweeper at 8k with out getting a heat stroke, I mean automatic shut down.
*But can you water cool your wrist instead*
drink warm tea and build cool stuff
wouldnt it work better on your head?
A relay? Why not a transistor for the PWM?
does this really work tho?
I wonder if a fan could be custom made for this unit
I'd put a resistor and a circuit breaker to improve durability and user safety.
put the car battery on your back pack and you good to go. hahahaha.
Why not water cooler?
If I turn the polarity around then It becomes a heater ! where do I fill the patent ? please send me money !
what are the parts needed for the variable control unit
can someone give me info about the exact parts used and where to order them?
This cooling boosted my FPS in Life
Wait... in the winter you could use this to charge batteries using your body heat!
Is this better than just having a 0.50amp pc fan just blowing at you full speed.
Make it thin an flexible, add temperature tracking so it doesn't overcool or undercool and it'll become a super popular product among gamers.
Superb!
So much negative comments on this thing, come visit Phoenix AZ and spend about 5min outside in the summer ya plebs
if this thing cools you even 20F lower than ambient you can still be a breezy 100F
could you turn it around and make a heater?
+Jacob Paniagua
You could just use a heater. No cold side that way.
But can you watercool yourself?
Yeah. It's called going to the pool. It's very popular in the summer.
Where could I find a thermoelectric cooler (The little electronic pad thingy). Please Reply.
Search "peltier" on eBay
it's probably easier just to go sit in the fridge
what was the unit
Aww this is awesome if you could combine it with a steampunk outfit
I love experiments
I had this idea too !!!!! Cool but mine would use copper lol
I'm no electronics expert, but couldn't you have just used a potentiometer for adjusting fan intensity?
I think you would need more than just the potentiometer because it just measures potential voltages, not temperatures. If you could pair one with a thermocouple I think that might work. But hey, I'm no expert either.
canibal803 Well, the potentiometer would just add variable electric resistance to the fan's power, limiting the fan speed, correct?
BadLarryFilms, home of TheShadbusher That is correct, however using passive resistance is not the optimal controller in this instance. Using a potentiometer will reduce the output to the fan and thermoelectric plate, but it takes that extra energy and converts it into heat; the very thing we're trying to remove from the system. It also wastes energy that could have been used to the power the device by the same heat conversion (especially important when running from a battery!). By using the 555 timer and a relay no energy is wasted by simply shutting the unit on and off, so no extra heat is generated and no energy is wasted.
BadLarryFilms, home of TheShadbusher yes but potentiometer is not powerful enuth for the amout of curent going through so what wood hapen is it wood start to get hot,smoke and burn
bor_12345's Electrofied Gaming 1 word, resistor
The fan alone does the cooling.
The TEC is making the cooling many times more inefficient.
so cool
u can do the same thing with ICE, PAPER TOWELS, And a Rubber Band! It Actually Works!