| 摘要 |
PURPOSE:To make the operation of a heat pump possible with a high efficiency even when the sunshine is lacking by incorporating a fan in the body of a solar heat collector with a transparent cover for introducing and expelling of the outside air so that it can be made compact. CONSTITUTION:When there is sunshine, a fan 12 remains inoperative, and the sun light passes through a transparent cover 2 and is conducted through an ambient air heat absorption surface 10 of a fin 7 to varporize and gasify the refrigerant that flows in a heat collection pipe 10. The solar heat is shifted to the refrigerant in the form of latent heat, and is transmitted through a compressor to a condenser. The heat in the absorption surface 8 is partially transmitted also by radiation and convection. A heat collection plate 6 maintains a high thermal efficiency even when the vaporization temperature has become higher than the ambient temperature. If the sunshine is weakened, the fan 12 is started by a sensor etc., and the outside air is introduced into the collector body (a) and after passing through an air duct P of the fin 7 and the fan 12 is released from an outlet 14. The outside air is absorbed by the heat collection pipe 11 set lower than the outside air temperature while passing over the absorption surface 10 so as to make the operation of a heat pump possible. |
