Wind power blade and fan

The utility model provides a wind power blade and a draught fan. The wind power blade comprises a blade body and a flexible extending part. The blade body comprises a suction surface and a pressure surface. The flexible extension part comprises a first end part and a second end part, the first end p...

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Bibliographic Details
Main Authors ZHOU HANLONG, HAO HEWEI, FANG ZHIYANG, QIAO YUJUN, LI CHENGLIANG, LI LEI
Format Patent
LanguageChinese
English
Published 20.09.2019
Subjects
BLASTING
HEATING
LIGHTING
MACHINES OR ENGINES FOR LIQUIDS
MECHANICAL ENGINEERING
OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
PRODUCING MECHANICAL POWER
WEAPONS
WIND MOTORS
WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Summary:The utility model provides a wind power blade and a draught fan. The wind power blade comprises a blade body and a flexible extending part. The blade body comprises a suction surface and a pressure surface. The flexible extension part comprises a first end part and a second end part, the first end part is provided with a bent part, the bent part is connected to the suction surface, the second end part freely extends to the rear edge of the blade body, the flexible extension part can generate passive deformation, and then the flowing track of airflow along the suction surface is changed. 本实用新型提供了一种风电叶片及风机，风电叶片包括叶片本体以及柔性延伸部。叶片本体包括吸力面和压力面。柔性延伸部包括第一端部和第二端部，第一端部具有弯折部，弯折部连接于吸力面，第二端部自由地向叶片本体的后缘延伸，柔性延伸部能够产生被动变形，进而改变气流沿吸力面的流动轨迹。
Bibliography:Application Number: CN201822257133U