Temperature-controlled Peltier Mini Fridge (Thermoelectric)

Channel: Joseph Rautenbach


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This is my homemade Peltier Thermoelectric mini fridge. A Peltier thermoelectric cooler was used for the cooling, a polystyrene box for insulation, and old PC fans/heatsink for the heat exchangers.
An eBay thermostat was used for setting and controlling the temperature which is very handy, it can easily cool down the inside to 2°C.

Blog post with further explanation: http://devjoe.com/2015/04/03/peltier-fridge/
Featured on Hackaday.com! – http://hackaday.com/2015/04/03/building-your-own-mini-fridge/

Resources list:
• Peltier cooler: http://www.ebay.com/sch/i.html?_nkw=peltier+cooler
• Thermostat: http://www.ebay.com/sch/i.html?_nkw=temperature+controller
• Heatsinks - salvaged from old computers and electronics
• Power supply - In any desktop computer or at computer stores. Instructions to modify: http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply