Delta T Phone Charger

grabcad

Here is my concept for the DELTA T CHARGER. This device clamps to the back of any style phone with wireless charging built in. You then release and lock out the thermal collectors on the top and bottom of the device. The lower copper heatsink is shoved into the dirt/sand/water/snow to maintain optimal cooling. The upper copper heatsink opens like an umbrella, stretching out a mylar parabolic dish to help collect optimal heat energy from solar/camp fire/even body heat. The difference in temperature, or Delta T induces the Seebeck Effect causing the semiconductor materials to generate electricity proportional to temperature difference of each heatsink. In an optimal scenario, the cold side would be in snow, and the hot side directly pointed at the sun producing around 40 watts.The biggest advantage to this system is that ANY thermal input will work, such as hanging out around a campfire on a cold night. Simply anchor the device in the ground at any angle facing the campfire to start generating power. You could even extend the hot side collector with the dish still collapsed and place it under your sleeping bag with the cold side sticking through the tent into the cool night air. Even this small temperature difference would allow you to trickle charge a device.The charging circuit is simple and inexpensive. The thermoelectric generators are wired in parallel (for maximum amps) directly to the wireless charge coil to create the strongest electromagnetic field per unit of thermal energy input.