Wind turbine blade layup structure, wind turbine blade and layup method
Patent Information
- Application Number
- CN202611071290.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-17
- Publication Date
- 2026-10-23
Smart Images
Figure CN122960487A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wind turbine blade technology, specifically to a wind turbine blade layup structure, a wind turbine blade, and a layup method. Background Technology
[0002] For large-sized wind turbine blades, in order to reduce defects such as slippage, wrinkles and resin enrichment in the trailing edge vertical area and improve the manufacturability of the trailing edge layup, the relevant technology adopts a layup method that combines pre-shaped fabric with prefabricated trailing edge components (such as trailing edge beams). The inner layup of the pre-shaped fabric is overlapped with the prefabricated component to form a continuous and stable layup structure.
[0003] In related technologies, precast components often have a protrusion on the side closest to the inner layup. When the inner layup needs to cover or approach this protrusion area, due to the high rigidity of both the inner layup (which uses a pre-formed fabric structure) and the precast component, they will directly form a rigid contact with the protrusion surface, making it difficult to achieve a tight fit and thus creating a local gap in this area. During subsequent injection molding, this gap can easily lead to resin accumulation, resulting in resin-rich defects and significantly reducing the overall mechanical properties of the layup structure.
[0004] Therefore, how to eliminate the gaps formed by hard contact between the inner ply and the protrusions of the precast components, and ensure the overall mechanical properties of the ply structure, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention
[0005] To address the aforementioned technical problems, embodiments of this application provide a wind turbine blade layup structure, a wind turbine blade, and a layup method, which can eliminate the gaps formed between the inner layup body and the protrusions of the prefabricated components due to rigid contact, thereby ensuring the overall mechanical performance of the layup structure.
[0006] In a first aspect, a wind turbine blade layup structure is provided, comprising: Outer ply; The inner ply is disposed inside the outer ply; A prefabricated component is disposed between the outer ply and the inner ply, and the prefabricated component has a protrusion on the side closer to the inner ply; A flexible isolator, at least partially covering the space between the outer surface of the convex hull and the inner ply.
[0007] According to a first aspect of this application, the flexible insulator comprises: A first isolation layer covers the space between the convex hull and the inner ply; The second isolation layer covers the side of the precast component away from the bulge and the outer layup.
[0008] According to a first aspect of this application, the number of the first isolation layer and the number of the second isolation layer are the same.
[0009] According to a first aspect of this application, the inner ply includes a first end and a second end distributed chordally, the first end being connected to the outer ply, and the inner ply being configured to rotate about the first end so that the second end is moved away from the outer ply. The first isolation layer is used to rotate with the inner ply body to increase the assembly space between the first isolation layer and the second isolation layer.
[0010] According to a first aspect of this application, the outer layup and the inner layup are constructed as a multi-layered pre-shaped fabric.
[0011] According to a first aspect of this application, the flexible separator is constructed of biaxial fabric.
[0012] Secondly, a wind turbine blade is also provided, comprising: The wind turbine blade layup structure as described in the previous embodiment is located at the trailing edge of the wind turbine blade.
[0013] Thirdly, a layup method is also provided for forming the wind turbine blade layup structure as described in the previous embodiment; The layup method includes: Lay the outer ply; The flexible insulating body is laid on the outer ply body; Lay the inner ply; The prefabricated member is laid between the outer and inner plies, and the flexible separator covers at least a portion of the outer surface of the bulge between the inner ply and the inner ply.
[0014] According to a third aspect of this application, the flexible insulator includes a first insulator layer and a second insulator layer; The step of laying the prefabricated member between the outer and inner plies, and ensuring that the flexible separator at least partially covers the area between the outer surface of the bulge and the inner ply, includes: The prefabricated component is laid between the first isolation layer and the second isolation layer, such that the first isolation layer covers the bulge and the inner ply, and the second isolation layer covers the prefabricated component and the outer ply.
[0015] According to a third aspect of this application, the inner ply includes a first end and a second end distributed along the tangential direction, the first end being connected to the outer ply. The step of laying the prefabricated component between the first isolation layer and the second isolation layer, such that the first isolation layer covers the area between the bulge and the inner ply, and the second isolation layer covers the area between the prefabricated component and the outer ply, includes: The inner layer is rotated around the first end, causing the first isolation layer to move away from the second isolation layer, thereby increasing the assembly space between the first isolation layer and the second isolation layer; The prefabricated components are laid within the assembly space; The inner layer is rotated around the first end, causing the first isolation layer to move closer to the second isolation layer, so that the first isolation layer covers the outer surface of the convex bulge.
[0016] The wind turbine blade layup structure, wind turbine blade, and layup method provided in this application embodiment cover at least part of the outer surface of the bulge and the inner layup body with a flexible insulator. This transforms the original rigid contact relationship between the prefabricated component and the inner layup body into a flexible fit relationship, eliminating the gaps formed by the rigid contact between the inner layup body and the bulge of the prefabricated component. On the one hand, this eliminates resin-rich defects formed in the area between the inner layup body and the bulge of the prefabricated component during subsequent injection, ensuring the overall mechanical performance of the wind turbine blade layup structure. On the other hand, it allows the inner layup body to extend beyond the highest point of the bulge along the chord direction, completely covering the highest point of the bulge. Based on this, more reinforcing layers can be added to the inner layup body to improve the overall structural strength of the wind turbine blade layup structure. Attached Figure Description
[0017] The above and other objects, features, and advantages of this application will become more apparent from the more detailed description of the embodiments of this application in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same components or steps.
[0018] Figure 1 This is a schematic diagram of the structure of a wind turbine blade provided as an exemplary embodiment of this application.
[0019] Figure 2 This is a schematic diagram of a wind turbine blade layup structure provided for an exemplary embodiment of this application.
[0020] Figure 3 This is a schematic flowchart of a layup method provided for an exemplary embodiment of this application.
[0021] Figure 4 A schematic flowchart of a layup method provided for another exemplary embodiment of this application.
[0022] Figure 5 A schematic flowchart of a layup method provided for another exemplary embodiment of this application.
[0023] 100 - Wind turbine blade layup structure; 110 - Outer layup; 120 - Inner layup; 121 - First end; 122 - Second end; 130 - Prefabricated component; 131 - Protrusion bulge; 140 - Flexible isolator; 141 - First isolator layer; 142 - Second isolator layer; 200 - Wind turbine blade; 210 - Leading edge; 220 - Trailing edge. Detailed Implementation
[0024] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein.
[0025] For large-sized wind turbine blades, in order to reduce defects such as slippage, wrinkles and resin enrichment in the trailing edge vertical area and improve the manufacturability of the trailing edge layup, the relevant technology adopts a layup method that combines pre-shaped fabric with prefabricated trailing edge components (such as trailing edge beams). The inner layup of the pre-shaped fabric is overlapped with the prefabricated component to form a continuous and stable layup structure.
[0026] In related technologies, precast components often have a protrusion on the side closest to the inner layup. When the inner layup needs to cover or approach this protrusion area, due to the high rigidity of both the inner layup (which uses a pre-formed fabric structure) and the precast component, they will directly form a rigid contact with the protrusion surface, making it difficult to achieve a tight fit and thus creating a local gap in this area. During subsequent injection molding, this gap can easily lead to resin accumulation, resulting in resin-rich defects and significantly reducing the overall mechanical properties of the layup structure.
[0027] Through in-depth analysis, the inventors discovered that the root cause of the above problems lies in the lack of surface adaptability at the contact interface between the pre-shaped fabric and the precast component. The rigid surface of the pre-shaped fabric directly contacts the rigid convex surface of the precast rear edge beam, and the pre-shaped fabric, after naturally bending, cannot fill the resulting gap.
[0028] To overcome the aforementioned problems, this application introduces a flexible isolator, which at least partially covers the outer surface of the bulge and the inner ply. This transforms the original rigid contact between the precast component and the inner ply into a flexible fit, eliminating the gaps formed by rigid contact between the inner ply and the bulge of the precast component. On one hand, this eliminates resin-rich defects formed in the area between the inner ply and the bulge of the precast component during subsequent injection, ensuring the overall mechanical performance of the wind turbine blade ply structure. On the other hand, it allows the inner ply to extend beyond the highest point of the bulge along the chord direction, completely covering it. Furthermore, more reinforcing layers can be designed in the inner ply to enhance the overall structural strength of the wind turbine blade ply structure.
[0029] The following provides a detailed description of the wind turbine blade layup structure, wind turbine blade, and layup method provided in the embodiments of this application.
[0030] Figure 1 This is a schematic diagram of the structure of a wind turbine blade provided as an exemplary embodiment of this application. Figure 2 This is a schematic diagram of a wind turbine blade layup structure provided for an exemplary embodiment of this application. Figure 1 and Figure 2 As shown, the wind turbine blade 200 provided in this application embodiment typically includes blades along the chord direction (refer to...). Figure 1 The wind turbine blade 200 includes a leading edge 210 and a trailing edge 220 distributed along the X-axis direction. The wind turbine blade 200 also includes a wind turbine blade layup structure 100, which is located at the trailing edge 220.
[0031] like Figure 2 As shown, the wind turbine blade layup structure 100 provided in this application embodiment may include an outer layup 110, an inner layup 120, a prefabricated component 130, and a flexible separator 140.
[0032] It should be noted that the outer layer 110 is usually laid along the surface contour of the main mold of the wind turbine blade 200 to play a major supporting role.
[0033] In one embodiment, the outer layup 110 can be a multi-layer pre-formed fabric. It should be noted that the pre-formed process usually refers to bonding multiple layers of fiber fabric into a whole in advance through processes such as powder bonding and hot pressing. In this way, the outer layup 110 can form a stable and non-dispersible whole before laying, thereby effectively avoiding problems such as misalignment and wrinkles of the outer layup 110 during the laying process, and significantly improving the laying efficiency and accuracy of the outer layup 110.
[0034] In one embodiment, the outer layup 110 may be made of biaxial or uniaxial fabric as the raw material layer of the pre-shaped fabric.
[0035] In one embodiment, the outer layup 110 may also be a composite layer structure formed by combining a non-pre-designed fabric and a pre-designed fabric.
[0036] like Figure 2 As shown, the inner ply 120 is disposed inside the outer ply 110. It should be noted that, in this application, the terms "inner side" and "outer side" are terms used to describe the relative positions of the components in the thickness direction of the wind turbine blade 200, where "outer side" can be understood as the side closer to the outer surface of the wind turbine blade 200, and "inner side" can be understood as the side closer to the inner cavity of the wind turbine blade 200.
[0037] In one embodiment, the inner layup 120 can be a multi-layer pre-formed fabric. It should be noted that the pre-formed process usually refers to bonding multiple layers of fiber fabric into a whole in advance through processes such as powder bonding and hot pressing. In this way, the inner layup 120 can form a stable and non-dispersible whole before laying, thereby effectively avoiding problems such as misalignment and wrinkles of the inner layup 120 during the laying process, and significantly improving the laying efficiency and accuracy of the inner layup 120.
[0038] In one embodiment, the inner layup 120 may be made of biaxial or uniaxial fabric as the raw material layer of the pre-shaped fabric.
[0039] In one embodiment, the inner layup 120 may also be a composite layer structure formed by combining a non-pre-designed fabric and a pre-designed fabric.
[0040] like Figure 2 As shown, the prefabricated component 130 is disposed between the outer ply body 110 and the inner ply body 120, and the outer ply body 110, the inner ply body 120 and the prefabricated component 130 can form a "sandwich" structure. This "sandwich" structure can effectively improve the overall stability of the wind turbine blade ply structure 100.
[0041] It should be noted that the precast component 130 can be a structural component that is pre-manufactured by a casting process. For example, the precast component 130 can be a pre-made rear edge beam.
[0042] like Figure 2 As shown, the precast component 130 has a protrusion 131 on the side near the inner ply 120. The protrusion 131 may correspond to a raised structure on the outer surface of the precast component 130. For example, the protrusion 131 may be the highest point of the trailing edge beam along the chord direction.
[0043] It should be noted that at least a portion of the flexible isolator 140 covers the area between the outer surface of the protrusion 131 and the inner ply 120. By providing the flexible isolator 140 between the outer surface of the protrusion 131 and the inner ply 120, the original rigid contact relationship between the prefabricated component 130 and the inner ply 120 is transformed into a flexible fit. This eliminates the gaps formed between the inner ply 120 and the protrusion 131 of the prefabricated component 130 due to rigid contact, thereby eliminating resin-rich defects formed in the area between the inner ply 120 and the protrusion 131 of the prefabricated component 130 during subsequent injection, ensuring the overall mechanical performance of the wind turbine blade ply structure 100.
[0044] Furthermore, in related technologies, to avoid a direct, rigid contact gap between the pre-shaped inner layup 120 and the protrusion 131 region of the precast component 130, the chordal extension range of the inner layup 120 is typically limited to the opposite two sides of the protrusion 131 along the chordal direction; that is, the inner layup 120 cannot extend beyond the highest point of the protrusion 131. This is because once the inner layup 120 extends beyond the highest point of the protrusion 131, the inner layup 120 will be unable to conform to the curved contour of the protrusion 131, resulting in local voids, which in turn can lead to resin-rich defects during subsequent injection.
[0045] Therefore, in this embodiment of the application, by setting a flexible separator 140 between the outer surface of the protrusion 131 and the inner ply body 120, the original rigid contact relationship between the prefabricated component 130 and the inner ply body 120 is transformed into a flexible fit relationship. This eliminates the gap formed by the rigid contact between the inner ply body 120 and the protrusion 131 of the prefabricated component 130. It also allows the extension range of the inner ply body 120 along the chord direction to extend beyond the highest point of the protrusion 131 and completely cover the highest point of the protrusion 131. On this basis, more reinforcing fabric layers can be added to the inner ply body 120 to improve the overall structural strength of the wind turbine blade ply structure 100.
[0046] Furthermore, the introduction of the flexible separator 140 provides a flexible contact for the effective cooperation between the inner ply 120 and the prefabricated component 130. The inner contact surfaces of the aforementioned "sandwich" structure are less prone to slippage and wrinkling, which makes the aforementioned "sandwich" structure more stable and reliable, and effectively improves the overall forming quality of the wind turbine blade ply structure 100.
[0047] In one embodiment, the flexible separator 140 can be made of biaxial fabric. Biaxial fabric is typically made of two sets of fibers interwoven at a certain angle. When the two sets of fibers are subjected to stress from multiple directions during subsequent infusion, they are less prone to local shear deformation, thereby ensuring that they achieve a stable isolation function.
[0048] In one embodiment, the flexible separator 140 is not limited to biaxial fabric; other materials with flexible and anti-adhesion properties can also be used. For example, the flexible separator 140 can be a release film, polytetrafluoroethylene fabric, etc.
[0049] The wind turbine blade layup structure 100 and wind turbine blade 200 provided in this application embodiment cover at least a portion of the flexible separator 140 between the outer surface of the protrusion 131 and the inner layup 120. This transforms the original rigid contact relationship between the prefabricated component 130 and the inner layup 120 into a flexible fit, eliminating the gaps formed by the rigid contact between the inner layup 120 and the protrusion 131 of the prefabricated component 130. On the one hand, this eliminates resin-rich defects formed in the area between the inner layup 120 and the protrusion 131 of the prefabricated component 130 during subsequent injection, ensuring the overall mechanical performance of the wind turbine blade layup structure 100. On the other hand, it allows the inner layup 120 to extend beyond the highest point of the protrusion 131 along the chord direction, completely covering the highest point of the protrusion 131. Furthermore, more reinforcing layers can be added to the inner layup 120 to improve the overall structural strength of the wind turbine blade layup structure 100.
[0050] like Figure 2 As shown, the flexible isolation body 140 may include a first isolation layer 141 and a second isolation layer 142. The first isolation layer 141 covers the area between the bulge 131 and the inner layup 120; the second isolation layer 142 covers the area between the side of the prefabricated component 130 away from the bulge 131 and the outer layup 110.
[0051] It should be understood that the above-mentioned arrangement structure can completely enclose the prefabricated component 130 within the flexible isolation body 140, which can not only eliminate the gap that may be caused by hard contact between the inner ply body 120 and the protrusion 131, but also eliminate the gap that may be caused by hard contact between the side of the prefabricated component 130 away from the protrusion 131 and the outer ply body 110. Thus, flexible bonding is achieved on both the upper and lower sides of the prefabricated component 130, further improving the overall bonding tightness and stability of the wind turbine blade ply structure 100.
[0052] like Figure 2 As shown, the number of the first isolation layer 141 and the second isolation layer 142 are the same. This ensures that the first isolation layer 141 and the second isolation layer 142 wrapping the prefabricated component 130 are symmetrical in thickness and structure, guaranteeing the uniformity of the flexible interface. It can effectively avoid stress unevenness problems that may be caused by the mismatch in the number of the first isolation layer 141 and the second isolation layer 142, and help to further improve the long-term stability and reliability of the wind turbine blade layup structure 100.
[0053] In one embodiment, the number of the first isolation layer 141 and the second isolation layer 142 can both be one, two, or multiple (three or more).
[0054] like Figure 2 As shown, the inner ply 120 includes a first end 121 and a second end 122 distributed along the chord direction. The first end 121 is connected to the outer ply 110. The inner ply 120 is able to rotate around the first end 121 so that the second end 122 moves away from the outer ply 110.
[0055] It should be noted that during the rotation of the inner ply body 120 around the first end 121, the first isolation layer 141 can rotate synchronously with the inner ply body 120, thereby increasing the assembly space between the first isolation layer 141 and the second isolation layer 142. This increased assembly space facilitates the hoisting and installation of the prefabricated components 130, improves laying efficiency, and ensures the forming quality of the wind turbine blade ply structure 100.
[0056] Specifically, in practical applications, the inner ply body 120 is lifted, and the inner ply body 120 rotates around the first end 121. The first isolation layer 141 rotates synchronously with the inner ply body 120, increasing the assembly space between the first isolation layer 141 and the second isolation layer 142. Then, the prefabricated component 130 is hoisted and installed in the assembly space. After placement, the inner ply body 120 rotates around the first end 121 to return to its original position, and the first isolation layer 141 is then re-covered on the outer surface of the protrusion 131 of the prefabricated component 130. In this way, through the aforementioned operation method, large prefabricated components 130 can be precisely installed and flexibly wrapped in a small space without completely disassembling the inner ply body 120, thus improving the laying efficiency. In addition, the increased assembly space between the first isolation layer 141 and the second isolation layer 142 can also effectively prevent collisions between the prefabricated components 130 and the inner ply body 120 (or the outer ply body 110) during the laying process, ensuring the forming quality of the wind turbine blade ply structure 100.
[0057] In one embodiment, the way to increase the assembly space between the first isolation layer 141 and the second isolation layer 142 is to completely remove the inner ply body 120 from the outer ply body 110, that is, to design the inner ply body 120 and the outer ply body 110 as a completely detachable separate structure.
[0058] Figure 3 This is a schematic flowchart illustrating a layup method provided for an exemplary embodiment of this application. This layup method is used to form a layup structure for a wind turbine blade as described in the previous embodiment. Specifically, as... Figure 3 As shown, the layup method may include the following steps.
[0059] S610: Lay the outer layer.
[0060] Specifically, the outer ply can be laid on the main mold of the wind turbine blade. Specifically, one or more layers of fabric constituting the outer ply can be laid on the main mold according to the ply sequence and outline.
[0061] S620: Lay a flexible isolation layer on the outer layer.
[0062] Specifically, the placement of the flexible isolation structure corresponds to the placement of the subsequent precast components to ensure that the flexible isolation structure can accurately cover the precast components.
[0063] S630: Lay the inner layer.
[0064] S640: A precast component is laid between an outer ply and an inner ply, and a flexible separator is at least partially covered between the outer surface of the bulge of the precast component and the inner ply.
[0065] Specifically, the precast component 130 that has been cast can be hoisted onto the main mold and placed at a predetermined position between the inner ply 120 and the outer ply 110, and the flexible contact between the convex 131 and the inner ply 120 can be achieved through the flexible separator 140.
[0066] It should be noted that the order of steps S630 and S640 is not strictly limited. For example, step S640 can be performed first to hoist the precast component 130 and cover the convex bulge 131 with the flexible isolation body 140, and then step S630 can be performed to lay the inner ply 120.
[0067] The layup method provided in this application embodiment involves laying an outer layup 110, laying a flexible spacer 140 on the outer layup 110, laying an inner layup 120, and then laying a prefabricated component 130 between the outer layup 110 and the inner layup 120. At least a portion of the flexible spacer 140 covers the area between the outer surface of the protrusion 131 and the inner layup 120. This transforms the original rigid contact relationship between the prefabricated component 130 and the inner layup 120 into a flexible fit, eliminating the rigid contact between the inner layup 120 and the prefabricated component 130. The gap formed by the hard contact between the protrusions 131 can, on the one hand, eliminate the resin-rich defects formed in the area between the inner ply body 120 and the protrusions 131 of the prefabricated component 130 during the subsequent injection process, ensuring the overall mechanical performance of the wind turbine blade ply structure 100; on the other hand, it can allow the chordal extension range of the inner ply body 120 to extend beyond the highest point of the protrusion 131, completely covering the highest point of the protrusion 131. On this basis, more reinforcing layers can be added to the inner ply body 120 to improve the overall structural strength of the wind turbine blade ply structure 100.
[0068] Figure 4 This is a schematic flowchart of a layup method provided for another exemplary embodiment of this application. Based on the structure of the flexible separator including a first separator layer and a second separator layer, step S640 may include: S641: A prefabricated component is laid between the first isolation layer and the second isolation layer, such that the first isolation layer covers the area between the bulge and the inner ply, and the second isolation layer covers the area between the prefabricated component and the outer ply.
[0069] It should be understood that by performing step S641, the prefabricated component 130 can be completely enclosed within the flexible isolation body 140. This not only eliminates the gap that may be caused by hard contact between the inner ply body 120 and the protrusion 131, but also eliminates the gap that may be caused by hard contact between the side of the prefabricated component 130 away from the protrusion 131 and the outer ply body 110. As a result, flexible bonding is achieved on both the upper and lower sides of the prefabricated component 130, further improving the overall bonding tightness and stability of the wind turbine blade ply structure 100.
[0070] In one embodiment, the second isolation layer 142 can be laid on the outer layer 110 first, then the prefabricated component 130 can be hoisted down, and then the first isolation layer 141 together with the inner layer 120 can be laid on the prefabricated component 130.
[0071] Figure 5 A schematic flowchart illustrating a layup method provided for another exemplary embodiment of this application. (See attached diagram.) Figure 5 As shown, based on the structure that includes a first end and a second end distributed along the chord direction of the inner ply body, and the first end being connected to the outer ply body, S641 may further include: S6411: Rotate the inner layer around the first end, causing the first isolation layer to move away from the second isolation layer, thereby increasing the assembly space between the first isolation layer and the second isolation layer.
[0072] S6412: Laying prefabricated components within the assembly space.
[0073] S6413: Rotate the inner ply body around the first end, causing the first isolation layer to move closer to the second isolation layer, so that the first isolation layer covers the outer surface of the convex hull.
[0074] It should be understood that by executing steps S6411, S6412, and S6413, sufficient assembly space can be provided for the hoisting and installation of large prefabricated components 130 without completely disassembling the inner ply body 120. This enables precise installation and flexible wrapping of large prefabricated components 130 within a smaller space, improving laying efficiency. In addition, after executing S6411, the assembly space between the first isolation layer 141 and the second isolation layer 142 increases, which can also prevent collisions between the prefabricated components 130 and the inner ply body 120 (or the outer ply body 110) during the subsequent execution of S6412 and S6413, ensuring the forming quality of the wind turbine blade ply structure 100.
[0075] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.
[0076] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.
[0077] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.
[0078] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.
[0079] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.
Claims
1. A wind turbine blade layup structure, characterized in that, include: Outer layer; The inner ply is disposed inside the outer ply; A prefabricated component is disposed between the outer ply and the inner ply, and the prefabricated component has a protrusion on the side closer to the inner ply; A flexible isolator, at least partially covering the space between the outer surface of the convex hull and the inner ply.
2. The wind turbine blade layup structure according to claim 1, characterized in that, The flexible insulator includes: A first isolation layer covers the space between the convex hull and the inner ply; The second isolation layer covers the side of the precast component away from the bulge and the outer layup.
3. The wind turbine blade layup structure according to claim 2, characterized in that, The number of the first isolation layer and the second isolation layer are the same.
4. The wind turbine blade layup structure according to claim 2, characterized in that, The inner ply includes a first end and a second end distributed along the chord direction. The first end is connected to the outer ply. The inner ply is used to rotate about the first end so that the second end moves away from the outer ply. The first isolation layer is used to rotate with the inner ply body to increase the assembly space between the first isolation layer and the second isolation layer.
5. The wind turbine blade layup structure according to any one of claims 1 to 4, characterized in that, The outer and inner plies are constructed as multi-layer pre-shaped fabrics.
6. The wind turbine blade layup structure according to any one of claims 1 to 4, characterized in that, The flexible insulator is constructed of biaxial fabric.
7. A wind turbine blade, characterized in that, include: The wind turbine blade layup structure as described in any one of claims 1 to 6 is disposed at the trailing edge of the wind turbine blade.
8. A layup method, characterized in that, Used to form the wind turbine blade layup structure as described in any one of claims 1 to 6; The layup method includes: Lay the outer ply; The flexible insulating body is laid on the outer ply body; Lay the inner ply; The prefabricated member is laid between the outer and inner plies, and the flexible separator covers at least a portion of the outer surface of the bulge between the inner ply and the inner ply.
9. The layup method according to claim 8, characterized in that, The flexible insulator includes a first insulator layer and a second insulator layer; The step of laying the prefabricated member between the outer and inner plies, and ensuring that the flexible separator at least partially covers the area between the outer surface of the bulge and the inner ply, includes: The prefabricated component is laid between the first isolation layer and the second isolation layer, such that the first isolation layer covers the bulge and the inner ply, and the second isolation layer covers the prefabricated component and the outer ply.
10. The layup method according to claim 9, characterized in that, The inner ply includes a first end and a second end distributed along the tangential direction, and the first end is connected to the outer ply. The step of laying the prefabricated component between the first isolation layer and the second isolation layer, such that the first isolation layer covers the area between the bulge and the inner ply, and the second isolation layer covers the area between the prefabricated component and the outer ply, includes: The inner layer is rotated around the first end, causing the first isolation layer to move away from the second isolation layer, thereby increasing the assembly space between the first isolation layer and the second isolation layer; The prefabricated components are laid within the assembly space; The inner layer is rotated around the first end, causing the first isolation layer to move closer to the second isolation layer, so that the first isolation layer covers the outer surface of the convex bulge.