| 摘要 |
PROBLEM TO BE SOLVED: To improve cost performance by forming a structure having a high- temperature insulating function and a thermal bonding means between the inside and a space having large heat capacity. SOLUTION: The outside air infiltrated from an outside-air intake 101 formed to eaves is flowed towards a ridge section in an air passage 103 formed between a waterproof sheet 204 and an optoelectric transducer 106 in the daytime at the time of a large quantity of solar radiation in summer. The outside air cools the optoelectric transducer 106, a temperature of which is elevated by solar radiation, is passed through a fan 105 and is exhausted from an air exhaust port 109 during that time. Accordingly, the deterioration of conversion efficiency with the temperature rise of the optoelectric transducer can be prevented from the lingering summer heat in the daytime, and a laminar air flow flowing under a roof fills the role of a heat-insulating material separating the heat of a roof material from an indoor section On the other hand, the radiational cooling of the optoelectric transducer 106 is obviated while hot air filled into the indoor section is discharged to the outside by changing over a valve 104 to the indoor side and flowing air in the indoor section into the air passage 103 from an air intake 102 at night at the time of a small quantity of solar radiation in summer. |
