CN216860795U - Composite board assembly, fan blade beam and wind generating set - Google Patents
Composite board assembly, fan blade beam and wind generating set Download PDFInfo
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- CN216860795U CN216860795U CN202220196437.7U CN202220196437U CN216860795U CN 216860795 U CN216860795 U CN 216860795U CN 202220196437 U CN202220196437 U CN 202220196437U CN 216860795 U CN216860795 U CN 216860795U
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Abstract
The utility model relates to the technical field of wind power generation equipment, in particular to a composite board assembly, a fan blade beam and a wind generating set. The composite board subassembly includes a plurality of plate bodies that stack gradually, and every plate body includes main part and edge part, and the edge part surrounds in the periphery of main part, and the edge part has the step portion through pultrusion formation, and the step portion has the indent space that the indent formed, and flow channel is injectd with the surface of another adjacent plate body to the indent space. According to the composite board assembly provided by the utility model, the concave space is arranged on the board bodies, so that when a plurality of board bodies are stacked, the flow channel can be defined between two adjacent board bodies, and when resin soaks the board bodies, the flow channel can play a role in guiding flow, so that the resin can be conveniently guided to different positions of the board bodies, the soaking uniformity can be improved, and the pouring defect can be reduced.
Description
Technical Field
The utility model relates to the technical field of wind power generation equipment, in particular to a composite board assembly, a fan blade beam and a wind generating set.
Background
Wind energy is used as clean energy, and the position of the wind energy in the global energy structure is continuously improved. Wind turbine blades are important parts in wind turbine generator systems. With the development of the wind power industry, the single machine capacity of the wind turbine generator is continuously increased, and the length of the blade is also continuously increased. Compared with the traditional fabric pouring process, the pultrusion plate has higher fiber content and performance, is used for designing and manufacturing the blade beam cap, can obviously reduce the weight of the blade and the load of the whole machine, and is an ideal material for manufacturing the large-scale blade.
The panel of using in the wind-powered electricity generation blade is mostly the rectangle structure, four corners radius angle or oblique angle. After the demoulding cloth on the surface of the plate is torn off, the demoulding cloth has a certain distance from the edge, and the edge of the plate is not completely covered, so that the edge of the plate is higher than the middle area, and a small step can be formed. The main problem of this method is that in the process of assembling the plate, after the edges of the upper and lower plates are attached, the middle area is easily closed, the flow channel is small, and it is not easy for resin to penetrate into the middle area of the plate from the edges, and the perfusion defects such as dry yarn, semi-dry yarn, poor infiltration and the like are formed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a composite board assembly, a fan blade beam and a wind generating set, which are used for solving the problem of perfusion defects caused by the fact that resin is difficult to flow into the board in the prior art and achieving the purposes of enabling the resin to uniformly infiltrate the board, guiding the resin to flow and reducing the perfusion defects.
The present invention provides a composite board assembly comprising: a plurality of plate bodies that stack up in proper order, every the plate body includes main part and edge part, the edge part is located the both sides of main part, the edge part has step portion, step portion has the indent space of indent formation, flow channel is injectd with the surface of another adjacent plate body to the indent space.
According to the composite board assembly provided by the utility model, two opposite surfaces of the board body are a first surface and a second surface,
at least one of the first surface and the second surface is provided with the step portion.
According to the composite board assembly provided by the utility model, a transition inclined plane is arranged between the step part and the main body part.
According to the composite board assembly provided by the utility model, the included angle between the transition inclined plane and the surface of the main body part is 30-90 degrees.
According to the composite board assembly provided by the utility model, the corner position of the board body is provided with a chamfer.
According to the composite board assembly provided by the utility model, the depth of the step part is 0.2mm-2.0mm, or the width of the step part is 5mm-15 mm.
According to the composite board assembly provided by the utility model, the thickness of the board body is 3mm-30 mm.
According to the composite board assembly provided by the utility model, the board groups are formed by the plurality of sequentially stacked board bodies, the composite board assembly comprises the plurality of board groups, and the plurality of board groups are sequentially arranged along the width direction of the board bodies.
The utility model also provides a fan blade beam which comprises the composite board assembly.
The utility model also provides a wind generating set which comprises the fan blade beam.
According to the composite board assembly provided by the utility model, the concave space is arranged on the board bodies, so that when a plurality of board bodies are stacked, the flow channel can be defined between two adjacent board bodies, and when resin soaks the board bodies, the flow channel can play a role in guiding flow, so that the resin can be conveniently guided to different positions of the board bodies, the soaking uniformity can be improved, and the pouring defect can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is one of the structural schematic diagrams of the plate body provided by the present invention;
fig. 2 is a partial schematic view of the plate body of fig. 1 from another perspective;
FIG. 3 is one of the structural schematic diagrams of the composite board assembly provided by the present invention;
FIG. 4 is a second schematic structural view of a composite board assembly provided by the present invention;
fig. 5 is a second schematic structural diagram of the plate body provided by the present invention;
FIG. 6 is a third schematic structural view of a composite board assembly provided by the present invention;
fig. 7 is a third schematic structural diagram of a plate body according to the present invention;
FIG. 8 is a fourth schematic structural view of a composite board assembly provided by the present invention;
reference numerals:
100. a composite board assembly;
110. a plate body; 111. a main body part; 112. an edge portion; 1121. chamfering; 113. a step portion; 114. an indent space; 115. a flow channel;
116. a transition bevel; 117. a first surface; 118. a second surface; 119. and (4) plate assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The composite board assembly 100 of the present invention is described below with reference to fig. 1 to 8.
As shown in fig. 3, the composite board assembly 100 may include a plurality of sequentially stacked plate bodies 110. Each plate body 110 may be a pultruded plate, for example, when the plate body 110 is formed, the plate body 110 may be formed by a pultrusion process, and the fibers for preparing the plate body 110 include inorganic fibers (such as carbon fibers, glass fibers, basalt fibers, etc.) and organic fibers (such as aramid fibers, ultra-high molecular weight polyethylene fibers, polyester fibers, bamboo fibers, wood fibers, etc.). The resin used to prepare the plate body 110 includes thermosetting and thermoplastic resins such as epoxy resin, vinyl resin, polyurethane resin, and unsaturated polyester resin.
Referring to fig. 1 and 2, each plate body 110 includes a main body portion 111 and edge portions 112, the edge portions 112 are disposed at both sides of the main body portion 111, the edge portions 112 have step portions 113, and the step portions 113 have concave spaces 114 formed concavely. The term "concave" is understood to mean concave in the medial direction, and the medial direction refers to the medial direction of the spatial region formed by the outer surface of the plate body 110. Since the edge portion 112 has the stepped portion 113, the thickness of the edge portion 112 is small relative to the thickness of the main body portion 111. For this purpose, the edge portion 112 may be thinned by a pultrusion process during the forming of the plate body 110. That is, the plate body 110 is formed with the step 113 through a pultrusion process.
As shown in fig. 3 and 4, the concave space 114 and the adjacent surface of the other plate body 110 define a flow channel 115. It should be noted that, when a plurality of plate bodies 110 are stacked, two opposite surfaces are provided between two adjacent plate bodies 110, and the edge portion 112 of each plate body 110 has the concave space 114, so that the flow channel 115 can be defined between the two plate bodies 110, and when the resin wets the plate bodies 110, the flow channel 115 can play a role in guiding the resin to different positions of the plate bodies 110, so that the uniformity of wetting can be improved, and the pouring defects can be reduced.
According to the composite board assembly 100 of the embodiment of the utility model, the concave space 114 is arranged on the board body 110, so that when a plurality of board bodies 110 are stacked, the flow channel 115 can be defined between two adjacent board bodies 110, and when the board bodies 110 are soaked by resin, the flow channel 115 can play a role in guiding the resin to different positions of the board bodies 110, so that the soaking uniformity can be improved, and the pouring defects can be reduced.
According to some embodiments of the present invention, referring to fig. 1, the depth of the step portion 113 is H, and H ranges from 0.2mm to 2.0 mm. Preferably, the depth of the stepped portion 113 is 0.5mm to 1.0 mm. Therefore, the flow guide effect of the flow channel 115 can be ensured by limiting the depth of the step part 113, and the infiltration effect of the plate can be further improved.
According to some embodiments of the present invention, referring to fig. 1, the width of the step part 113 is L, and the value of L ranges from 5mm to 15mm, and preferably, the width of the step part 113 ranges from 5mm to 8 mm. This ensures the width of the flow channel 115, thereby improving the smoothness of the resin in the flow channel 115 and facilitating the resin to infiltrate the plate body 110. In order to improve the structural strength of the plate body 110, in some embodiments, as shown in fig. 1, the thickness of the plate body 110 is W, and the value of W ranges from 3mm to 30 mm.
As shown in fig. 1, according to some embodiments of the present invention, a transition bevel 116 is formed between the step part 113 and the main body part 111. Thus, the surface of the plate body 110 may be more smooth. Further, as shown in fig. 1, the included angle between the transition slope 116 and the surface of the main body 111 is α, and α ranges from 30 ° to 90 °. Thus, the main body 111 and the step 113 can smoothly transit. To further enhance the smoothness of the surface of the plate body 110, in some embodiments, referring to fig. 1, 5 and 7, the corner position of the plate body 110 is provided with a chamfer 1121.
According to some embodiments of the present invention, the two opposite surfaces of the plate body 110 are a first surface 117 and a second surface 118, and at least one of the first surface 117 and the second surface 118 is provided with the concave space 114. In other words, at least one of the first surface 117 and the second surface 118 is provided with the step portion 113. For example, in the example shown in fig. 1, both ends of the first surface 117 are provided with one stepped portion 113, respectively; as another example, in the example shown in fig. 2, two ends of the first surface 117 are respectively provided with one step portion 113, and two ends of the second surface 118 are respectively provided with one step portion 113; for another example, in the example shown in fig. 7, the first surface 117 is provided with one step portion 113, the second surface 118 is provided with one step portion 113, and the step portion 113 on the first surface 117 and the step portion 113 on the second surface 118 are not opposed to each other in the up-down direction. Like this, pultrusion plate body 110 has step portion 113 at the unilateral surface, and a plurality of plate body 110 post-assembly stable in structure are difficult for appearing the risk of the adjacent panel overlap of same layer, avoid forming the defect of resin enrichment. In addition, by changing the position and number of the steps 113, the plate body 110 having various structural forms can be constructed, and after a plurality of plate bodies 110 are stacked, the flow channel 115 has a different structure.
According to some embodiments of the present invention, a flow guiding fabric may be disposed between two adjacent layers of the plate body 110, and the flow guiding fabric may be a glass fiber fabric, a carbon fiber fabric, or a carbon-glass mixed fabric, so as to guide the resin to flow, improve the smoothness of the resin flow, enhance the uniformity of the infiltration of the plate body 110, and reduce the defect of infusion.
According to some embodiments of the present invention, the board body 110 further includes a release fabric layer, and the release fabric layer is wrapped on the outer surface of the board body 110. Here, the release fabric layer is constituted by a release fabric. For example, taking the pultruded panel body 110 as an example, the opposing two surfaces on the pultruded panel body 110 are a first surface 117 and a second surface 118, such as the upper and lower surfaces of the panel body 110. Wherein the first surface 117 and the second surface 118 are covered with a release cloth, the release cloth of the first surface 117 extends to a position 0-10mm from the edge of the plate body 110, and the release cloth of the second surface 118 may also extend to a position 0-10mm from the edge of the plate body 110.
According to some embodiments of the present invention, as shown in fig. 3, a plurality of sequentially stacked plates 110 form a plate pack 119. The composite board assembly 100 includes a plurality of plate groups 119, the plate groups 119 are sequentially arranged along the width direction of the board body 110, and two flow channels 115 located at the same height and between two adjacent plate groups 119 are communicated with each other. Here, it should be noted that the communication of the flow passages 115 may be understood as direct communication or indirect communication.
The direction of the plate set 119 is not particularly limited as long as it can meet the manufacturing requirements of the composite board assembly 100. For example, in the example shown in fig. 3, the composite board assembly 100 includes three sets of plate groups 119, each set of plate groups 119 includes a plurality of plate bodies 110 stacked one on another, and an upper surface of each plate body 110 is provided with a step portion 113; when the three sets of plate groups 119 are placed in the width direction of the plate body 110, the step portion 113 of each plate body 110 is placed facing upward.
As another example, in the example shown in fig. 4, unlike fig. 3, the plate group 119 located in the middle is placed in a different direction, and the step portion 113 on the plate group 119 is placed downward.
For another example, in the example shown in fig. 6, the composite board assembly 100 includes three sets of board groups 119, the three sets of board groups 119 are all disposed in the same direction, each set of board group 119 includes a plurality of stacked board bodies 110, the upper surface and the lower surface of each board body 110 are provided with step portions 113, the upper surface is provided with two step portions 113, and the lower surface is also provided with two step portions 113.
As another example, in the example shown in fig. 8, unlike fig. 6, each of the upper and lower surfaces of the plate body 110 is provided with one step portion 113, and the step portion 113 on the upper surface is located on the left side of the plate body 110, and the step portion 113 on the lower surface is located on the right side of the plate body 110.
A wind turbine blade spar according to embodiments of the present invention includes a composite sheet assembly 100 as described above.
According to the fan blade beam provided by the embodiment of the utility model, the concave space 114 is arranged on the plate bodies 110, so that when a plurality of plate bodies 110 are stacked, the flow channel 115 can be defined between two adjacent plate bodies 110, and when resin wets the plate bodies 110, the flow channel 115 can play a role in guiding flow, so that the resin is guided to different positions of the plate bodies 110, the wetting uniformity can be improved, and the pouring defects can be reduced.
According to the embodiment of the utility model, the wind generating set comprises the fan blade beam.
According to the wind generating set provided by the embodiment of the utility model, the concave space 114 is arranged on the plate bodies 110, so that when a plurality of plate bodies 110 are stacked, the flow channel 115 can be defined between two adjacent plate bodies 110, and when resin wets the plate bodies 110, the flow channel 115 can play a role in guiding flow, so that the resin is guided to different positions of the plate bodies 110, and therefore, the wetting uniformity can be improved, and the pouring defects can be reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A composite board assembly, comprising: a plurality of plate bodies that stack up in proper order, every the plate body includes main part and edge part, the edge part is located the both sides of main part, the edge part has step portion, step portion has the indent space of indent formation, flow channel is injectd with the surface of another adjacent plate body to the indent space.
2. The composite panel assembly of claim 1, wherein the two opposing surfaces of the panel body are a first surface and a second surface,
at least one of the first surface and the second surface is provided with the step portion.
3. The composite panel assembly of claim 1, wherein the step portion and the body portion have a transition chamfer therebetween.
4. A composite board assembly according to claim 3, wherein the angle between the transition bevel and the surface of the main body portion is between 30 ° and 90 °.
5. The composite panel assembly of claim 1, wherein the panel body is chamfered at a corner location.
6. The composite panel assembly of claim 1 wherein said step is 0.2mm to 2.0mm deep;
or the width of the step part is 5mm-15 mm.
7. The composite panel assembly of claim 1 wherein the plate body has a thickness of 3mm to 30 mm.
8. A composite board assembly according to any of claims 1-7, wherein a plurality of said boards stacked in sequence constitute a board pack,
the composite board assembly comprises a plurality of board groups, and the board groups are sequentially arranged along the width direction of the board body.
9. A wind turbine blade spar comprising a composite sheet assembly according to any of claims 1 to 8.
10. A wind park comprising a wind turbine blade beam according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196437.7U CN216860795U (en) | 2022-01-24 | 2022-01-24 | Composite board assembly, fan blade beam and wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220196437.7U CN216860795U (en) | 2022-01-24 | 2022-01-24 | Composite board assembly, fan blade beam and wind generating set |
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| CN216860795U true CN216860795U (en) | 2022-07-01 |
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| CN202220196437.7U Active CN216860795U (en) | 2022-01-24 | 2022-01-24 | Composite board assembly, fan blade beam and wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450862A (en) * | 2022-10-14 | 2022-12-09 | 深圳市郎搏万先进材料有限公司 | Glass fiber pultrusion plate and wind power blade main beam |
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2022
- 2022-01-24 CN CN202220196437.7U patent/CN216860795U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450862A (en) * | 2022-10-14 | 2022-12-09 | 深圳市郎搏万先进材料有限公司 | Glass fiber pultrusion plate and wind power blade main beam |
| CN115450862B (en) * | 2022-10-14 | 2024-05-14 | 深圳市郎搏万先进材料有限公司 | Glass fiber pultrusion plate and wind power blade girder |
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