Patent ID: 8011693
Filing Date: 2011-09-06
Classification: A61F,A61G,B62B,B62J,F25B

Abstract:
1. A thermoregulatory unit for a stroller or a wheelchair or a scooter comprising a cover forming an enclosure; said thermoregulatory unit coupled with said enclosure comprising (i) a first chamber to heat or cool the air going into said enclosure and a second chamber to exhaust heat to the ambient; (ii) said first chamber being next to said second chamber and partitioned with an insulating material; (iii) at least one thermoelectric or Peltier cooler and heater device installed inside said active first chamber and extends into said second chamber, said thermoelectric device forming a hot or a cold junction by the application of an electric current; (iv) a heat exchanger means attached to said thermoelectric device to effectively transfer heat from the hot junction of the thermoelectric device to the air inside the first chamber to heat the air or to transfer heat from the air inside the first chamber to the cold junction of said thermoelectric device to cool the air; (v) said first chamber having an inlet opening, an outlet opening, and a circulating fan to suck the air from the enclosure into the first chamber, heat or cool the air, and then exhaust the air back into the enclosure; (vi) a set of air tube connecting said inlet and outlet openings of said first chamber to said enclosure forming a recirculating air flow; (vii) said second chamber having an inlet opening and an outlet opening and a circulating fan to suck the air from the ambient into the second chamber, transfer heat from the second chamber and exhaust the heated or cooled air by the thermoelectric device back into the ambient; and (viii) an electronics chamber and a battery compartment to power the thermoelectric device and said fans; whereby said thermoelectric or Peltier cooler and heater device heats the air inside the first chamber when electric current flows in one direction and cools said air when electric current flows in another direction, thereby heating or cooling the enclosure by changing electric current direction.