| 摘要 |
PURPOSE: A foldable blade of a wind power generator is provided to protect the wind power generator as being folded in strong wind. CONSTITUTION: A foldable blade of a wind power generator comprises a blade(10), a fixing unit(11), a support plate(20), a spring(30), and a control unit(40). The fixing unit fixes the blade to a rotary shaft. The support plate maintains the angle of the blade. The spring applies regular power to the support plate, and allows the blade to be folded when the strong wind blows. The control unit controls the elastic force of the spring. |
