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CN-224224685-U - Core material structure and wind power generation device

CN224224685UCN 224224685 UCN224224685 UCN 224224685UCN-224224685-U

Abstract

The application discloses a core material structure and a wind power generation device. The core material structure comprises a flexible piece and a core material plate, the core material plate is provided with a first side wall surface and a second side wall surface which are oppositely arranged, a plurality of first cutting grooves and second cutting grooves are formed in the first side wall surface, the first cutting grooves and the second cutting grooves are arranged in an angle mode and are mutually intersected, the core material plate is divided into a plurality of core material blocks through the first cutting grooves and the second cutting grooves, the second side wall surface is covered with the flexible piece, the core material structure is in a winding state and a laying state, the core material structure is wound to the other end from one end of the core material structure along the length direction of the core material plate in the winding state, and the side wall surface of the first side wall surface or the flexible piece is suitable for being attached to a target surface in the laying state. The technical scheme provided by the application is convenient for transporting and paving the core material structure, and meanwhile, the height difference between the core material blocks can be reduced, and the stability of the whole structure of the blade is enhanced, so that the quality of the blade is improved, and the service life is prolonged.

Inventors

  • LI HANSONG
  • HAN WANXIANG
  • CHEN XIAODONG
  • XU WENTAO

Assignees

  • 远景能源有限公司

Dates

Publication Date
20260512
Application Date
20250516

Claims (11)

  1. 1. A core structure, comprising: A flexible member (100); The core material plate (200) is provided with a first side wall surface (210) and a second side wall surface (220) which are oppositely arranged, a plurality of first cutting grooves (211) and second cutting grooves (212) are formed in the first side wall surface (210), the first cutting grooves (211) and the second cutting grooves (212) are arranged in an angle mode and are mutually intersected, the core material plate (200) is divided into a plurality of core material blocks (230) through the first cutting grooves (211) and the second cutting grooves (212), and the flexible piece (100) is covered on the second side wall surface (220); The core material structure (1000) has a rolled state in which the core material structure (1000) is rolled from one end to the other end along the length direction of the core material plate (200), and a laid state in which the first side wall surface (210) or the side wall surface of the flexible member (100) is adapted to be bonded to a target surface.
  2. 2. The core structure according to claim 1, characterized in that the core block (230) is projected from the first side wall surface (210) in a direction towards the second side wall surface (220), the projected area of the first side wall surface (210) of the core block (230) being smaller than the projected area of the second side wall surface (220).
  3. 3. The core structure according to claim 2, characterized in that the groove width of the first cut groove (211) is larger than the groove width of the second cut groove (212).
  4. 4. A core structure according to claim 3, characterized in that the groove width of the first cut groove (211) is gradually reduced from the first side wall surface (210) in a direction towards the second side wall surface (220).
  5. 5. The core structure according to claim 4, characterized in that the first cut groove (211) is a V-groove.
  6. 6. The core structure according to any one of claims 1 to 5, characterized in that a number of the first cutting grooves (211) are arranged in parallel and spaced apart, and a number of the second cutting grooves (212) are arranged in parallel and spaced apart And (5) setting.
  7. 7. The core structure according to claim 6, wherein the first cutting groove (211) is provided along a length direction of the core plate (200), and the second cutting groove (212) is provided along a width direction of the core plate (200).
  8. 8. The core structure according to any one of claims 1 to 5, wherein the flexible member (100) is a glass cloth.
  9. 9. The core structure according to claim 8, wherein the flexible member (100) is fixed to the second sidewall surface (220) by an adhesive layer.
  10. 10. A wind power generation apparatus, comprising: A blade (2000); the core structure according to any one of claims 1 to 9, wherein at least one of the core structures (1000) is provided, and a side wall surface of the flexible member (100) is bonded to an inner wall surface of the blade (2000) in the laid state.
  11. 11. The wind power generation device according to claim 10, wherein a plurality of the core structures (1000) are provided, the plurality of the core structures (1000) being arranged in order along the width direction of the blade (2000); The length direction of the core material structure (1000) is parallel to the length direction of the blade (2000) in a state where the core material structure (1000) is laid on the inner wall surface of the blade (2000).

Description

Core material structure and wind power generation device Technical Field The application relates to the field of core materials, in particular to a core material structure and a wind power generation device. Background The core material structure has the characteristics of light weight, high strength, good follow-up property, convenient construction and the like, and can be applied to the wind power field, the aerospace field, the ship manufacturing field, the building field and the like. Taking the wind power field as an example, the blades are used as core components of the wind power generation device, and the performance of the blades directly influences the wind energy conversion efficiency and the stability of the unit. Blades are generally composed of a shell, a core material, a connecting component and the like, wherein the structural design and performance of the core material play a critical role in the overall performance of the blade. In the prior art, the core material of the blade is usually laid in a way of splicing core material blocks one by one, and the way has serious defects. On the one hand, the large-leaf blade core material is large in splicing quantity, the manual laying speed is low, and the positions are easy to confuse, so that the operation efficiency is low, and the production cost is increased. On the other hand, the core blocks are spliced independently, the adjacent core blocks are connected discontinuously to generate height difference steps, stress concentration points are easy to form at the step positions when the blade runs, so that the blade is broken, the quality and the service life of the blade are influenced, and the equipment maintenance cost and the shutdown risk are increased. Disclosure of utility model The application aims to provide a core material structure and a wind power generation device, so that the transportation and the laying of the core material structure are facilitated, meanwhile, the height difference between core material blocks can be reduced, and the stability of the whole structure of a blade is enhanced, thereby improving the quality of the blade and prolonging the service life. In a first aspect, the present utility model provides a core structure comprising: A flexible member; The core material plate is provided with a first side wall surface and a second side wall surface which are oppositely arranged, a plurality of first cutting grooves and second cutting grooves are formed in the first side wall surface, the first cutting grooves and the second cutting grooves are arranged in an angle mode and are mutually intersected, and the core material plate is divided into a plurality of core material blocks through the first cutting grooves and the second cutting grooves; The core material structure is provided with a rolling state and a laying state, the core material structure is rolled from one end to the other end of the core material structure along the length direction of the core material plate in the rolling state, and the first side wall surface or the side wall surface of the flexible piece is suitable for being attached to a target surface in the laying state. The core material structure has the beneficial effects that the core material plate is divided into the plurality of core material blocks through the plurality of first cutting grooves and the plurality of second cutting grooves, the flexible pieces are covered on the second side wall surface, and the plurality of core material blocks are connected through the flexible pieces, so that the core material structure has a winding state and a laying state. During transportation, the core structure can be wound from one end to the other end along the length direction, and is converted into a compact winding state. Compared with the traditional large-block core material or scattered core material blocks, the coiled core material structure greatly reduces space occupation, is convenient to store and carry, effectively reduces collision and damage risks in the transportation process, improves logistics efficiency, and saves transportation cost. When the core material structure is paved, taking wind power generation blade manufacturing as an example, an operator only needs to place the core material structure in a winding state on a blade target surface, after finding the initial position, the operator can naturally expand the core material structure through simple pushing or poking actions, the switching from the winding state to the paving state is rapidly completed, and the first side wall surface or the side wall surface of the flexible piece is flatly attached to the target surface. The method has the advantages that a large number of core blocks are not needed to be spliced block by block in the laying process like the traditional process, the problem of position confusion easily caused by manual laying is effectively avoided, the laying efficiency is obviously improved, and the oper