| 摘要 |
A heat pump for use in a variable temperature cushion includes a housing with an inlet and a blower motor to draw in outside air to a two stage Peltier effect module that forms a sealed wall between a sub-cool side and a warm side of the housing. At the bottom of the housing are a pair of outlets and a condensate trap spanning across that facilitates condensate transfer from the cool side to the warm side for evaporation out of the warm side outlet. The heat pump also preferably includes a heat pipe from the warm side to the cool side to transfer heat and reheat the air (at a lower relative humidity) exiting through the cool outlet. Applications of the heat pump include a variable temperature cushion such as a seat and backrest, or bedding such as a pillow. An air conditioned pillowcase includes a pair of air impervious layers connected together forming a plenum with tubular spacer material inside and having a plurality of outlet vents around the perimeter. A multi-channel air duct connects the plenum to the heat pump, and further there is an optional noise cancellation system, both to minimize noise from operation of the heat pump. |
