| 摘要 |
PURPOSE: A window structure of a building is provided to ventilate an indoor by automatically operating ventilation according to the preset of a user by an operation button. CONSTITUTION: A window structure of a building comprises a window, a ventilation window(20), an electro-magnetic plate(30) and a control box(50). A rail part is formed on the upper end of the window frame. The rail part is formed on the ventilation window. A metal plate(24) sticking to the magnet is fixed to the outer end of the ventilation window frame. |
