US 11,939,950 B2
Modular blade connection structure, method, and tooling
Kunlun Tan, Changzhou (CN); Yelin Liu, Changzhou (CN); Lei Cao, Changzhou (CN); Jian Zhang, Changzhou (CN); Gaoyu Bai, Changzhou (CN); and Shuang Lin, Changzhou (CN)
Assigned to NEWTECH GROUP CO., LTD., Jiangsu (CN)
Filed by NEWTECH GROUP CO., LTD., Changzhou (CN)
Filed on Jul. 24, 2023, as Appl. No. 18/225,544.
Application 18/225,544 is a continuation of application No. PCT/CN2023/077112, filed on Feb. 20, 2023.
Claims priority of application No. 202210503295.9 (CN), filed on May 9, 2022.
Prior Publication US 2023/0366373 A1, Nov. 16, 2023
Int. Cl. F03D 1/06 (2006.01); B29C 65/48 (2006.01)
CPC F03D 1/0675 (2013.01) [B29C 65/4825 (2013.01); F03D 1/0677 (2023.08); F05B 2230/23 (2013.01); F05B 2240/302 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A modular blade connection method applied to a modular blade connection structure, the modular blade connection structure comprising: a first module, a second module and a structural adhesive;
wherein the first module and the second module are provided opposite each other, and the first module is provided on an end face thereof with a bonding flange extending towards the second module, the bonding flange extending into the second module;
wherein there is a gap between a butting surface of the first module and a butting surface of the second module, and between the bonding flange and an inner wall of the second module, the structural adhesive being filled in the gap and cured; and
wherein the first module and the second module are flush at their outer surfaces, a thickness of the first module at a starting end of the bonding flange extends towards an inner surface to form a first reinforcement, and the structural adhesive extends inside the second module in a direction away from the bonding flange to form a second reinforcement,
the modular blade connection method comprising the following steps:
preparing the first module and the second module;
applying the structural adhesive to the butting surfaces of the first module and the second module;
butting the first module and the second module to a set position, and applying a set pressure along a butting direction of the first module and the second module;
when the pressure along the butting direction reaches a stop holding pressure, applying a set pressure on both sides in the thickness direction to cause the structural adhesive at an edge of the bonding flange to overflow until the curing is completed;
wherein the first module is thickened near the bonding flange to form the first reinforcement when preparing the first module; and
wherein when the pressure is applied in the thickness direction so that the structural adhesive at the edge of the bonding flange overflows, the overflowing structural adhesive is scraped in the direction away from the bonding flange to form the second reinforcement.