| 摘要 |
PURPOSE: A wind power generator is provided to efficiency generate power by concentrating the wind power in case of weak wind power by forming an air concentration groove in front of the upper side of the extendable blade. CONSTITUTION: A wind power generator with an extendable blade includes a pole unit(2), a support shaft(3), a horizontal casing(5), a blade unit(8), and a generation unit(24). The pole unit is vertical on the surface. The support shaft is rotatably and vertically installed on the upper side of the pole unit. A horizontal casing is horizontally attached to the upper side of the support shaft. A blade unit includes a plurality of extendable blades. A plurality of extendable blades is horizontally installed inside the horizontal casing. A plurality of extendable blades rotates a rotation shaft(9) while rotating with wind power. The generation unit receives the rotation force from the blade and is connected to the front end of the rotation shaft. The width of the lower side of the extendable blade is extended into the front and rear sides and is attached in a front and rear diagonal direction along a longitudinal direction of the rotation shaft. The extendable blade is twisted forward and the width of the extendable blade becomes wider upward. The upper side of each extendable blade faces forward. An air concentration groove(11) is formed on the upper front of each extendable blade. The upper and lower sides of each extendable blade are elastically bent to the upper and lower sides. |
