BLADE FOR WIND TURBINE AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A blade of an aerogenerator and a manufacturing method thereof are provided to prevent crack occurrence on a leading edge and a trailing edge since connection parts of the leading edge and the trailing edge are not formed. CONSTITUTION: A blade of an aerogenerator includes a leading shell body (20) and a trailing shell body (30). The leading shell body comprises a first leading shell unit (22) which is positioned on a leading edge (24) and the negative pressure surface of the blade, and a second leading shell unit (26) which is positioned on the front side of the pressure surface (14) of the blade in a view from the rotational direction. The trailing shell body comprises a first trailing shell unit (32) which is positioned on the trailing edge (34) of the blade and the rear side of the negative surface of the blade, and a second trailing shell unit (36) which is positioned on the rear side of the pressure surface of the blade in a view from the rotational direction. One end of the first leading shell unit and one end of the first trailing shell unit are welded with each other to form the negative pressure surface of the blade. One end of the second leading shell unit and one end of the second trailing shell unit are welded with each other to form the pressure surface of the blade.