Use a bit more than I did in the video, you want it to squeeze out all the way to the edges.

Thank you, make sure you add the extra thermal paste as we have discussed in the comments.

Thank you Kevin, you're 100% right. If your making one of these kits, listen to Kevin!, The paste needs full coverage for optimal heat transfer.

Right from corner to corner Never apply paste like that . Any warranty would be invalid based on improper installation.. first clean all surfaces to be in contact with alchohol, it removes all oils. Then apply your paste in the proper manner. That bs he is doing is some bestbuy geek squad thing. HP MasterTech Dell sys expert i no a lil somethin ...

Thank you for the comment. I just wanted to make sure anyone could succeed, even people who've never seen heatsink!

Yup, great for beginners!!

There are some wood screws we have that are wide enough to hold onto the heatsink fins. I need to make the next part of the video soon. :-)

yep thats what i thought ,just rebuilding mine so was slightly confused , good video .

Yell out if you get stuck, and good luck!

@@DrBlackAdder sure, But how you used the coolness of it?

We build small fridges out of Foam Fruit Boxes with wooden cases. Use these for drink fridges.

@@DrBlackAdder Nice, i am going to put 2 cooling fans on it & will use for water cooling

Sounds like you have a plan. Let us know when you've got it happening!

Great question! I use one of these: A Universal Laptop Power Supply An ATX PC Power Supply

You can stack peltiers too, never tried it but looks like fun: m.kzfaq.info/get/bejne/Y52UaK9ksp6vcmQ.html

Paul Taylor, that wouldn’t be ideal for me lol. I’m trying to keep cost under 60 Canadian dollars. I’m creating a freezer for my school electronics project. I checked out this one on amazon, www.amazon.ca/dp/B074FVR9J5/ref=dp_cerb_2 Please let me know if you think I should purchase this unit. I really want to make sure it will work well and not reach crappy temps and stop working after a week.

I actually don't know. It may have a different name with that purpose.

1.www.banggood.com/Geekcreit-TEC1-12705-Thermoelectric-Peltier-Refrigeration-Cooling-System-Equipment-Kit-Cooler-Fan-p-936497.html 2. Car Battery

You can use 12v from old smps

I used what was provided in the kits on AliExpress. Budget-wise buying a kit was the cheapest option for me. I'm sure with some research you could make a more-efficient design. Finding a good used CPU cooler would likely be a great option for the external heatsink.

All depends on the quality of insulation and the temperature of your environment. I'd expect it to work ok on a 40-50L fridge.

@@DrBlackAdder Temperature of the environment would be between 15 - 25 C° as I am living in temperate overtaxed Belgium and for the insulation, since not subjected to wear and tear could be a thick, (15 cm or so) layer of the best insulation DIY can buy, or even modify my old still working whirlpool custom fridge from 1956 and throw out the compressor to accommodate this. Have you got a link as to where you bought this gizmo?

@@MrDertien If you search 'peltier cooler kit' on eBay or AliExpress a lot will show up. Make sure you get the kit with a fan on both sides, it'll keep refrigerated temperatures more even thought your box. :-)

Power supplies are a bit more difficult, using an old PC power supply would be cheapest, maybe even free if you hunt.

@@DrBlackAdder Thank you very much for your quick and to the point replies.

Peltier devices are very power hungry. You will need a lot of power generation and storage for your plan. Think like car battery size storage at minimum.

Yes, 15amp is more than enough. 12x15 = 180watts.

I wouldn't use this on a phone, it gets cold enough to condense moisture, which would be bad for a phone. Using a fan, or a fan and heatsink might be a safer option for your phone.

Something like a Silicone Thermal Pad, and 80mm aluminium heatsink and matching low profile 5v 80mm fan might be your dream.

it doesn't matter if you touch it, its not sensitive, he is for some reason saying its not OK to touch it, if it gets dirty, you can clean it with iso alcohol.

Search "Peltier cooler kit" you want something like this: #Aliexpress AU $20.10 35%OFF | 1pc Thermoelectric Peltier Refrigeration Cooler DC 12V Semiconductor Air Conditioner Cooling System DIY Kit a.aliexpress.com/_dYHTgVl And a 12v power supply like this #Aliexpress AU $14.90 30%OFF | DC 12V/15V/16V/18V/19V/20V/24V 4A 5A 96W 100W Laptop AC Universal Power Adapter Charger for ASUS DELL Lenovo Sony Toshiba Laptop a.aliexpress.com/_d8Zg9cP

It came precut in the kit. :-)

This person managed to: www.instructables.com/Thermoelectric-Auto-Air-Conditioner-Heater/

Thank you sir for useful information

I don't know the exact model, here is a pic of teh dimensions of the ones I have used: ae01.alicdn.com/kf/HTB1eWOIa6DuK1RjSszdq6xGLpXaK.jpg?width=1080&height=1080&hash=2160 The smaller you go, the less efficient the peltier will get. Getting rid of the heat is the most important thing. :-)

Okay thank you 😊

It will try to maintain about a 60c difference. The hot side will get above 35c by a lot. Bascially the cooler you can keep the hot side, the cooler the cold side will be.

I'm not sure what you mean? A lot of cycling on and off may reduce its lifespan.

@@DrBlackAdder I mean can we give 12v supply directly from the rectifier without filtering it with capacitors?

@@ravibarot7867 I had a bit of a look, ripple voltages within the Peltier operating range won't hurt it, but will reduce your power efficiency, so adding a decent capacitor would likely improve your cooling slightly.

@@DrBlackAdder can you suggest me, which rating of capacitors do I have to use?

@@ravibarot7867 what is your power source?

Usually you see a drastic decline in cooling performance when a pelter fails, not the other way around. From what I've seen while studying how pelter based refrigeration units work, they are very simple by design. Basically you have your pelter unit, a power supply, a 12v pc fan, and a switch. The units with "temperature" controls don't really have a means of adjusting the "cooling power" of the pelter as its basically a solid state heat pump with a hardware set efficiency. So on temp control units, its either just a placebo, or it just simply turns off the pelter until the internals warm back to the desired temp. That being said, what I theorize is the issue in your case, is that the ambient temperature in the room is cooler than what the manufacturer designed the fridge to operate in. Because with pelter units, up to a point, will get colder depending on how well the hot side is cooled.

@reluttr2 my thought was the temp sensor in the unit was faulty. Turns out it was so it would run constantly never stopping at the desired temp. Ran a new temp sensor and that did the trick.

I'm not sure what you want to achieve with a PCB. Cooling a circuit board is usually best done with air cooling, Peltier devices add extra heat to disperse.

Why not Peltier Crocs?

I just used the ones that come in the kits on eBay/AliExpress. I'd guess that to a reasonable limit bigger is better. :-)

Do you have a multimeter? It sounds like power supply is being pulled low. I have seen fake power supplies do this. A multimeter will tell you the answer. If you have another power supply you can use it for your fan. Just be careful, if the power supply is overloaded it may self destruct!

@@DrBlackAdder peltier + fans was on the load port of a solar mppt solar charger instead of directly on a battery. Clamped directly to the battery, it works :-) But the solar regulator is not a cheap one and should let 10 amps through. Only the one fan isnt working on the load port lol

@@Bergwacht That makes sense, if there's not enough sun, it may not be able to deliver the current and voltage required. Maybe look at a temperature controller so you don't waste energy cooling past your required temp? I'd love to see your setup!

@@DrBlackAdder The sun doesn't matter, the controller still has a mostly full 44Ah battery as power supply , tomorrow will connect 240 amps. The 2 solar panels with 100W for 60 € provide enough for the peltier and also charge the battery when the sun is shining - its not 200 watts but 150w came out. . Is The Sun not shining my Battery is empty after 2 hours lol

@@DrBlackAdder AND My Peltier refrigerator is not working at all. Just converted a passive cool box. The hot side is hot, and the inside unit is really cold - the principle works but the insulation material is so thick that half the cooler is covered inside, and the fan inside is too small. It is difficult to fix the problem, I would need a thermally conductive spacer for the Peltie so that the cooler is deeper in the box so that it is not covered. I have neither tools or material to get a same size as the peltier 1.5 - 2 cm thick metal plate ^^

You will need 5A. Cheap power supplies usually lie about output, so I think you would need one that has an 8A or 10A output.

About 22 years according to specifications.

I use a 12s4010m - a 40x40x10mm fan

@@pikachulilly Thank you so much. I will try and get one., How many watts is it ?

@@indianb1918 That fan would be about 5.1w

@@DrBlackAdder Thank you

That sounds mad as! Keep us updated with your progress! :-)

@@DrBlackAdder HOW MUCH MY IDEA TAKE

@@rekogoolgo5959 I don't know. Keep the Peltier at the bottom, if it condenses moisture it will be away from the components!

@@DrBlackAdder i think about that and thanks because you remember my QUESTION

Hot side hole was 100mmx100mm.

Enjoy. :-)

As our most recent thermal paste expert, welcome to the conversation. :-)

www.bdspeedytech.com

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Heya Ravi, You can get the Peltier kit here: www.aliexpress.com/item/12v-6a-Thermoelectric-Peltier-Refrigeration-Cooling-System-Kit-Cooler-Fan-Diy/32889118741.html You can get the power supply we used here: www.aliexpress.com/item/DC-12V-15V-16V-18V-19V-20V-24V-4-5A-96W-Laptop-AC-Universal-Power-Adapter/32852511585.html

ill hook you up with one www.ebay.com.au/itm/12V-6A-Thermoelectric-Peltier-Refrigeration-Cooling-Fan-System-Kit-CPU-Cooler/292654861250?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D56116%26meid%3Dc4f2522098cb4da68fdd214a9e6ef4b1%26pid%3D100675%26rk%3D2%26rkt%3D15%26sd%3D292987302876%26itm%3D292654861250&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A41d62d16-5058-11e9-9cf6-74dbd180b118%7Cparentrq%3Abdcd936f1690a887dd0afb96fffc9a04%7Ciid%3A1

I'm sorry. I don't understand. I could not find a good translation. Can anyone help me?

Paul Taylor, He said “waste” a more common meaning would be “useless” He’s speaking in Hindi.

@@purchasecomplete5640 thank you for the translation, much appreciated. :-)

Paul Taylor dang fast reply!

@@purchasecomplete5640 You just got me at an opportune time. :-) I'd guess you'll see a 20-25 degree C temperature difference from ambient with one of these cheap 60w peltiers, so depends on you climate how cool the cold side will be.