公开(公告)号：EP4338940A1

公开(公告)日：2024-03-20

申请号：EP22832235.0

申请日：2022-08-24

Applicant: Newtech Group Co., Ltd.

Inventor： TAN, Kunlun ,  CAO, Lei ,  BAI, Gaoyu ,  LIU, Yelin ,  DU, Qiuping ,  ZHANG, Zhicheng ,  ZHU, Yubin ,  ZHENG, Xiaotian

IPC: B29C70/00 ,  F03D1/06 ,  F03D13/00

Abstract: The invention relates to the technical field of wind power generation equipment, in particular to a modular wind turbine blade and a manufacturing method thereof, comprising a blade root, an intermediate portion and a blade tip, wherein the intermediate portion comprises a plurality of modular blades, two adjacent modular blades being provided at edge thereof with a first connecting portion and a second connecting portion that cooperate with each other, and wherein the plurality of modular blades includes a trailing edge shell, a leading edge shell and a main beam, respectively, the first connecting portion at the edge of the trailing edge shell and the leading edge shell being fixedly connected to the second connecting portion at the edge of the main beam. The wind turbine blade according to the present invention adopts segmented modular structural design, which effectively reduces the mold occupancy time of the blade, shortening the production cycle and improving the molding efficiency.

公开(公告)号：EP4339451A1

公开(公告)日：2024-03-20

申请号：EP22891574.0

申请日：2022-08-24

Applicant: Newtech Group Co., Ltd.

Inventor： TAN, Kunlun ,  LIU, Yelin ,  BAI, Gaoyu ,  DU, Qiuping ,  CAO, Lei ,  LIU, Shihai ,  WANG, Xiugang ,  CAO, Yichao

IPC: F03D1/06

Abstract: The present invention relates to the field of wind turbine blade technology, in particular to a spanwise segment connection structure for wind turbine blades, comprising: a first segment and a second segment provided along the length direction of the wind turbine blade, wherein at least one splicing surface, in form of a slope structure, is provided between the first and second segments; and a structural adhesive layer provided at the splicing surface for splicing and fixing the first and second segments; wherein the bonding length of the structural adhesive layer conforms to the inclination angle of the slope structure, and a biaxial fabric reinforcement layer is provided on the outer side of a skin interface of the splicing surface. The weight of the blade is reduced and the production cost is reduced through the bonding and fixing of the first and second segments. The splicing surface in form of the slope structure increases the bonding area and reduces the stress concentration on the splicing surface of the first and second segments. In addition, the biaxial reinforcing layer at the skin interface of the splicing surface ensures the uniformity of the force on the blade shell structure, thereby improving the stability of the overall structure of the blade.

公开(公告)号：EP4338938A1

公开(公告)日：2024-03-20

申请号：EP23802449.1

申请日：2023-02-20

Applicant: Newtech Group Co., Ltd.

Inventor： TAN, Kunlun ,  LIU, Yelin ,  CAO, Lei ,  ZHANG, Jian ,  BAI, Gaoyu ,  LIN, Shuang

IPC: B29C65/48 ,  B29C65/78 ,  B29L31/08

Abstract: The present disclosure relates to the field of wind turbine blade technology, in particular to a modular blade connection structure, method, and tooling, the structure comprising a first module, a second module and a structural adhesive module; wherein the first module is provided on an end face thereof with a bonding flange extending into the second module; wherein a gap between the butting surfaces of the first module and the second module is injected with a structural adhesive, which is extruded and cured to form a structural adhesive module; and wherein the thickness of the first module at the starting end of the bonding flange extends towards the inner surface to form a first reinforcement, and the structural adhesive module extends inside the second module in a direction away from the bonding flange to form a second reinforcement. The present disclosure facilitates the control the bonding quality of the double-sided overlapping of the modular blade by means of the bonding flange, and facilitates the improvement of the fatigue resistance at the assembling position by means of the first reinforcement formed by the increased thickness of the first module and the second reinforcement formed by the overflow of the structural adhesive module, while reducing the influence on the aerodynamic performance of the blade.