| 摘要 |
PURPOSE: An automatic window opening device using memory alloy is provided to prevent back draft phenomenon and flash over phenomenon by automatically opening a window in fire. CONSTITUTION: An automatic window opening device using memory alloy comprises a transformation body(20). The transformation body is structurally transformed due to heat generated in fire. Whole window(10) is inclined towards the indoor or the outdoor so that a window is opened. The transformation body comprises a transformation frame(21), a separation unit(22), and a transformation unit. The transformation frame is fixed to a wall, and the separation unit and the transformation unit are comprised of the memory alloy. A protrusion unit(25) of the separation unit is inserted into a groove(14) formed on an upper window frame(12) in normal times. The protrusion unit is separated from the groove by being transformed in the fire. |
