| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vacuum flat-plate type solar heat collector which is simple in structure and can efficiently utilize solar heat. <P>SOLUTION: In the vacuum flat-plate type solar heat collector 10, a vacuum heat insulation layer 16 having a heat insulation property higher than that of an heat insulation material such as glass wool is formed at a box 12 arranged at the backside of a heat collecting plate 18, and thereby heat collected at the heat collecting plate 18 is prevented from leaking to the backside of the box 12, thus utilizing the heat collected at the heat collecting plate 18 more efficiently than a conventional flat-plate type solar heat collector. <P>COPYRIGHT: (C)2012,JPO&INPIT |
