US 12,270,382 B2
Main laminate for a wind turbine blade and associated method
Rama Razeghi, Hampshire (GB); Jeppe Bjørn Jørgensen, Kolding (DK); Paul Todd, Hampshire (GB); and Boas Eirikksson, Kolding (DK)
Assigned to LM WIND POWER A/S, Kolding (DK)
Appl. No. 18/285,685
Filed by LM WIND POWER A/S, Kolding (DK)
PCT Filed May 3, 2022, PCT No. PCT/EP2022/061755
§ 371(c)(1), (2) Date Oct. 5, 2023,
PCT Pub. No. WO2022/233811, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 21172001 (EP), filed on May 4, 2021.
Prior Publication US 2024/0117792 A1, Apr. 11, 2024
Int. Cl. F03D 80/30 (2016.01); F03D 1/06 (2006.01)
CPC F03D 80/301 (2023.08) [F03D 1/0675 (2013.01); F05B 2230/50 (2013.01); F05B 2280/6013 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for manufacturing for a wind turbine blade, the method comprising:
providing a blade shell extending in a longitudinal direction from a root to a tip, the blade shell having an outside surface for forming an outer surface of the wind turbine blade and an inner side opposite the outside surface;
providing a main laminate, the main laminate extending along a longitudinal direction and comprising:
a plurality of fibre elements, wherein each of the plurality of fibre elements comprises conductive fibres arranged along the longitudinal direction, the plurality of fibre elements collectively extends from a first end to a second end along the longitudinal direction and between a first edge and a second edge along a transversal direction perpendicular to the longitudinal direction, the plurality of fibre elements collectively forms a top surface between the first edge and the second edge, a thickness direction is perpendicular to the transversal direction and the longitudinal direction; and
a connector element comprising a conductive mesh portion and an elongated connector part, the elongated connector part extends between a primary connector part end and a secondary connector part end, the primary connector part end being coupled with the conductive mesh portion, the elongated connector part extending at a connector part length from the conductive mesh portion to the secondary connector part end, the elongated connector part having a primary connector portion towards the primary connector part end and a secondary connector portion between the primary connector portion and the secondary connector part end, the conductive mesh portion being arranged at a portion of the top surface at an edge distance from the first edge, and the elongated connector part extending from the primary connector part end in the transversal direction towards the first edge, wherein the connector part length is longer than the edge distance, and the secondary connector portion of the elongated connector part being bendable around a bend axis parallel to the longitudinal direction, wherein the secondary connector portion of the elongated connector part is bent around the bend axis, such that the elongated connector part forms a bend of more than 45° degrees;
positioning the main laminate on the inner side of the blade shell, such that a longitudinal axis of the blade shell is parallel with the longitudinal direction, and such that the top surface of the plurality of fibre elements faces away from the inner side of the blade shell; and
straightening the elongated connector part to reduce the bend, such that the elongated connector part extends across the first edge of the plurality of fibre elements of the main laminate and the secondary connector portion connects to an inside surface part of the inner side of the blade shell.