To solve the problem that conventional small-sized wind power generators lose power generation capacity during strong wind because they secure safety by applying brakes during strong wind, and provide an inexpensive propeller-type wind power generator that can maintain rotation even during strong wind to increase a total amount of power generation and provides excellent efficiency even during weak wind.SOLUTION: A power generation shaft 3 and a propeller 1 are provided; the power generation shaft 3 and a propeller mounting part 2 are rotatable relative to each other; a spring 25 is provided to press in a direction against torque received by the propeller mounting part 2; a pair of first and second gears 6, 7 are fixed to the power generation shaft 3 and are opposed to each other; a third gear 20 meshing with the gears 6, 7 is fixed to a propeller shaft 22; an angle between the power generation shaft and the propeller mounting part changes according to the rotational torque of the propeller; and a pitch of the propeller changes according to the angle change.SELECTED DRAWING: Figure 1
【課題】小型風力発電機は、強風時ブレーキを掛けることによって安全を確保していたため、強風時には発電能力がなくなっていた。これに対し強風時でも回転を維持し発電総量を多くすることができ、弱風時にも効率の良いプロペラ形風力発電機を安価に提供する。【解決手段】発電軸3とプロペラ1を設け、発電軸3とプロペラ取り付け部2が互いに回転可能になるようにし、プロペラ取り付け部2が受けるトルクに抗する方向に弾圧するスプリング25を設け、発電軸3には一対で違いに対向する第1及び第2の歯車6,7が固定され、プロペラ軸22には歯車6,7と噛み合う第3の歯車20が固定され、プロペラの回転トルクに応じて発電軸とプロペラ取り付け部との角度が変化し、この角度変化に応じてプロペラのピッチが変化するようにした。【選択図】図1
PROPELLER-TYPE WIND POWER GENERATOR
プロペラ形風力発電機
2022-10-04
Patent
Electronic Resource
Japanese