| 摘要 |
PROBLEM TO BE SOLVED: To provide a window structure with a solar heat collection unit, which does not deteriorate the function of a window, has a good external appearance, and is easy to install and maintain.SOLUTION: A window structure 1 of the present invention has a solar heat collection unit 5 which heats heat medium by using radiant heat of the sun light that comes through a window, below an air space 4 between an outer window 2 and an inner window 3. The solar heat collection unit 5 has, for example: a casing 6; a supplying pipe 7 that is provided in the casing 6 and has one end 7a serving as a supplying port for the heat medium and another end 7b communicating with the inside of the casing 6; and a partition plate 8 that spirally parts the casing 6 from the supplying pipe 7, so that the heat medium supplied from the supplying port at the one end 7a of the supplying pipe 7 flows into the inside of the casing 6 at the other end 7b of the supplying pipe 7, and spirally circulates along the partition plate 8 between the casing 6 and the supplying pipe 7. |
