Heating and cooling technologies including temperature regulating pad wrap and technologies with liquid system
A heating and cooling device is disclosed comprising at least one integral low voltage heating and cooling source and an efficient flexible heat distribution means having a thermal conductivity of from 375 to 4000 W/mK for distributing the heat and cool across a surface. Further aspects include thermal interface compounds to provide full thermal contact as well as the use of a phase change material to provide a long lasting heating and/or cooling effect without the use of external electrical input. Preferred applications include automotive and furniture seating heating and cooling, along with outdoor garments having distributed heating and cooling effects. Additional aspects include a thermal pad wrap and a thermally conductive liquid system for heat/cool distribution.
1. A heating and cooling system having a sheeted thermally conductive material for distributing heat or coolness in a seat, the system comprising:
a low voltage heating and cooling source for generating heat or coolness;
a flexible sheeted thermally conductive material in thermal communication with the heating and cooling source, the flexible sheeted thermally conductive material configured to distribute heat or coolness generated by the low voltage heating and cooling source over a distribution area across a surface of the seat larger than a surface of the heating and cooling source itself; and
a fan configured to move air through one or more perforations in the surface of the seat toward an occupant of the seat.
2. The system of claim 1 , wherein the flexible sheeted thermally conductive material comprises graphene.
3. The system of claim 1 , wherein the flexible sheeted thermally conductive material comprises strips of material.
4. The system of claim 1 , wherein the flexible sheeted thermally conductive material comprises one or more perforations, and wherein the fan is configured to move air through the one or more perforations in the flexible sheeted thermally conductive material.
5. The system of claim 4 , wherein the fan is configured to move air through one or more passages in the seat to move air through the one or more perforations in the surface of the seat and the one or more perforations in the flexible sheeted thermally conductive material.
6. The system of claim 1 , wherein the low voltage heating and cooling source is in thermal communication with a heat sink, and wherein the fan is configured to move air through the heat sink.
7. The system of claim 6 , wherein the fan is configured to move air through the heat sink and away from the surface of the seat via one or more air chambers in the seat.
8. The system of claim 7 , wherein the one or more air chambers are formed in foam of the seat.
9. The system of claim 7 , wherein the fan is configured to move air through a splitting chamber configured to direct air through the one or more perforations in the seat and through the one or more air chambers in the seat.
10. The system of claim 1 , wherein the fan is configured to move air through the one or more perforations in the seat such that the moved air exchanges heat with a phase change material located in the seat, the phase change material configured to store or release heat.
11. The system of claim 1 , wherein the low voltage heating and cooling source comprises a thermoelectric device.
12. The system of claim 1 , wherein the low voltage heating and cooling source operates from 10 to 16 VDC.
13. The system of claim 1 , wherein the low voltage heating and cooling source is in thermal communication with the flexible sheeted thermally conductive material via a heat transfer block configured to distribute heat or coolness generated by the low voltage heating and cooling source.
14. The system of claim 1 , wherein the low voltage heating and cooling source is in thermal communication with the flexible sheeted thermally conductive material via a thermal interface.
15. A heating and cooling system having a sheeted thermally conductive material for distributing heat or coolness in a seat, the system comprising:
a heating and cooling source for generating heat or coolness;
a flexible sheeted thermally conductive material in thermal communication with the heating and cooling source, the flexible sheeted thermally conductive material configured to distribute heat or coolness generated by the heating and cooling source over a distribution area across a surface of the seat larger than a surface of the heating and cooling source itself; and
a fan configured to move air through the surface of the seat toward an occupant of the seat.
16. The system of claim 15 , wherein the flexible sheeted thermally conductive material comprises graphene.
17. The system of claim 15 , wherein the flexible sheeted thermally conductive material comprises strips of material.
18. The system of claim 17 , wherein the strips of material are woven and coated with silicone.
19. The system of claim 15 , wherein the flexible sheeted thermally conductive material comprises one or more perforations, and wherein the fan is configured to move air through the one or more perforations in the flexible sheeted thermally conductive material.
20. The system of claim 15 , wherein the heating and cooling source is in thermal communication with a heat sink.
21. The system of claim 20 , wherein heat sink is configured to transfer liquid through the heat sink to move heat to or from the heating and cooling source.
22. The system of claim 15 , wherein the heating and cooling source comprises a thermoelectric device.
23. The system of claim 22 , wherein the thermoelectric device is configured to produce electrical energy via the Seebeck effect with a temperature difference between two planar sides of the thermoelectric device, wherein a temperature sensor is configured to be powered by utilizing electrical energy produced via the Seebeck effect, wherein temperature information from the temperature sensor is used for controlling the temperature of the surface of the seat and for turning on or off or modulating the heat supplied to or the heat removed from the surface of the seat.
24. The system of claim 15 , wherein the heating and cooling source comprises a plurality of thermoelectric modules, the plurality of thermoelectric modules wired in parallel or series.
25. The system of claim 15 , wherein the heating and cooling source is in thermal communication with the flexible sheeted thermally conductive material via a heat transfer block configured to distribute heat or coolness generated by the heating and cooling source.