Double-flapping wing blade for vertical axis wind turbine

The invention provides a double-flapping wing blade for a vertical axis wind turbine. The double-flapping wing blade is characterized by comprising a blade main body, a secondary blade part and a driving device, wherein the blade main body comprises a blade head part and a blade tail part; the secon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YE ZHOU, LI CHUN, ZU HONGYA, LUAN ZHONGJUN, MIAO WEIPAO, YANG YANG, JI KANG, YE KEHUA, NIE JIABIN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The invention provides a double-flapping wing blade for a vertical axis wind turbine. The double-flapping wing blade is characterized by comprising a blade main body, a secondary blade part and a driving device, wherein the blade main body comprises a blade head part and a blade tail part; the secondary blade part comprises two flapping wings mounted at the tail of the blade in an axial symmetry manner about the blade main body, two rotating components fixed at the tail of the blade, and two extension components fixed at the tail of the blade; one ends of the two flapping wings are rotationally connected with the tail of the blade through the two rotating components; the two rotating components are connected with the blade main body through the two extension components; and the driving device is connected with the extension components for driving the elongation or shortening of the extension components so as to drive the corresponding flapping wings to rotate to a position corresponding to the predetermined distance along the corresponding rotating components. When the double-flapping wing blade, provided by the invention, is used for the wind turbine, the starting performance is good, the pneumatic performance is controllable, the wind turbine can be protected, and the service life of the wind turbine is prolonged.