CN215152760U

CN215152760U - PVC foam core material for wind driven generator blade

Info

Publication number: CN215152760U
Application number: CN202121155958.XU
Authority: CN
Inventors: 金田
Original assignee: Manaso Nantong Composite Materials Co ltd
Current assignee: Weituo Jiangsu Composite Material Technology Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-14
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses a PVC foam core material for a wind driven generator blade, which is made of a PVC foam substrate; the PVC foam substrate comprises an upper TPU barrier film layer, an upper PVC foaming plate, a reinforced mixed fabric layer, a lower PVC foaming plate and a lower TPU barrier film layer which are sequentially arranged from top to bottom; the upper surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves I and a plurality of transverse separation grooves I; the upper surface of the PVC foam core material is divided into a plurality of first separating blocks by the first longitudinal separating groove and the first transverse separating groove; the center of each separating block is provided with a first glue hole; the lower surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves II and a plurality of transverse separation grooves II; the lower surface of the PVC foam core material is divided into a plurality of second separating blocks by the second longitudinal separating groove and the second transverse separating groove; and a second glue hole is formed in the center of each second separation block. The utility model discloses effectively improve resin filling efficiency, adapt to the special-shaped cambered surface in the blade when making the core installation.

Description

PVC foam core material for wind driven generator blade

Technical Field

The utility model relates to a aerogenerator blade core technical field, concretely relates to aerogenerator blade PVC foam core.

Background

The foam sandwich structure composite material is a sandwich structure form which adopts a resin-based composite material as a skin and adopts foam plastics as a core material, and has the excellent characteristics of high strength, light weight, high rigidity, corrosion resistance, electric insulation, microwave transmission and the like, so that the foam sandwich structure composite material is more and more widely used in the industries of wind power generation, rail transit, energy-saving construction, aerospace and the like, and greatly meets the development requirements of the industries.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a aerogenerator blade PVC foam core effectively improves resin filling efficiency, adapts to the special-shaped cambered surface in the blade when making the core installation.

In order to solve the technical problem, the utility model discloses take following technical scheme: a PVC foam core material of a wind driven generator blade is made of a PVC foam substrate; the PVC foam substrate comprises an upper TPU barrier film layer, an upper PVC foam board, a reinforced mixed fabric layer, a lower PVC foam board and a lower TPU barrier film layer which are sequentially arranged from top to bottom; the upper surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves I and a plurality of transverse separation grooves I; the upper surface of the PVC foam core material is divided into a plurality of first separating blocks by the first longitudinal separating groove and the first transverse separating groove; the center of each separating block is provided with a first glue hole; the lower surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves II and a plurality of transverse separation grooves II; the longitudinal separating groove II and the transverse separating groove II divide the lower surface of the PVC foam core material into a plurality of separating blocks II; and a second glue hole is formed in the center of each second separation block.

Furthermore, the first longitudinal separation groove and the first transverse separation groove are arranged in a staggered mode, and the second longitudinal separation groove and the second transverse separation groove are arranged in a staggered mode.

Furthermore, the first longitudinal separation grooves and the first transverse separation grooves are distributed on the upper surface of the PVC foam core material at equal intervals, the second longitudinal separation grooves and the second transverse separation grooves are distributed on the lower surface of the PVC foam core material at equal intervals, and the intervals between the adjacent first longitudinal separation grooves, between the adjacent first transverse separation grooves, between the adjacent second longitudinal separation grooves and between the adjacent second transverse separation grooves are equal.

Furthermore, the longitudinal separation groove I, the transverse separation groove I, the longitudinal separation groove II and the transverse separation groove II are all V-shaped grooves.

Furthermore, the aperture of the first glue hole and the aperture of the second glue hole are 0.2-0.3 mm.

Furthermore, the groove depth of the first longitudinal separating groove, the first transverse separating groove, the second longitudinal separating groove and the second transverse separating groove is 0.3-0.4 times of the thickness of the core plate.

Furthermore, the first glue hole is communicated with the second glue hole.

The utility model has the advantages that: PVC foam base plate includes from last upper TPU baffling film layer, upper PVC foaming board, reinforcing mixed fabric layer, lower floor PVC foaming board and the TPU baffling film layer of lower floor that sets gradually extremely down, and the quality is light, and intensity is high. The utility model discloses a PVC foam substrate upper surface and lower surface all set up vertically and horizontally staggered's V type groove, adapt to the special-shaped cambered surface in the blade when not only making the core installation, through increasing resin flow channel for the resin filling time obviously accelerates.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a cross-sectional view of the PVC foam substrate of the present invention.

Fig. 2 is a schematic structural diagram of the PVC foam core according to the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description.

In the description of the present invention, it is to be understood that the terms "middle", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In addition, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and 2, a PVC foam core material for a wind turbine blade according to the present invention is made of a PVC foam substrate; the PVC foam substrate comprises an upper TPU barrier film layer 1, an upper PVC foam board 2, a reinforced mixed fabric layer 3, a lower PVC foam board 4 and a lower TPU barrier film layer 5 which are sequentially arranged from top to bottom; the upper surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves I11 and a plurality of transverse separation grooves I12; the upper surface of the PVC foam core material is divided into a plurality of first separating blocks 13 by the first longitudinal separating grooves 11 and the first transverse separating grooves 12; the center of each separating block 13 is provided with a first glue hole 14; the lower surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves II 15 and a plurality of transverse separation grooves II 16; the lower surface of the PVC foam core material is divided into a plurality of second separating blocks by the second longitudinal separating groove 15 and the second transverse separating groove 16; and a second glue hole is formed in the center of each second separation block. The aperture of the first glue hole 14 and the aperture of the second glue hole are 0.2-0.3 mm. The first glue hole is communicated with the second glue hole.

The longitudinal separation groove I11 and the transverse separation groove I12 are arranged in a staggered mode, and the longitudinal separation groove II 15 and the transverse separation groove II 16 are arranged in a staggered mode. The longitudinal separation grooves I11 and the transverse separation grooves I12 are distributed on the upper surface of the PVC foam core material at equal intervals, the longitudinal separation grooves II 15 and the transverse separation grooves II 16 are distributed on the lower surface of the PVC foam core material at equal intervals, and the intervals between the adjacent longitudinal separation grooves I11, between the adjacent transverse separation grooves I12, between the adjacent longitudinal separation grooves II 15 and between the adjacent transverse separation grooves II 16 are equal. The first longitudinal separation groove 11, the first transverse separation groove 12, the second longitudinal separation groove 15 and the second transverse separation groove 16 are all V-shaped grooves.

The groove depth of the longitudinal separating groove I11, the transverse separating groove I12, the longitudinal separating groove II 15 and the transverse separating groove II 16 is 0.3-0.4 times of the thickness of the core plate.

The utility model discloses a set up longitudinal separation grass and horizontal separation groove at the upper surface of PVC foam core and lower surface, separate the groove and set up to the V type, not only increase resin flow channel for resin filling time obviously accelerates, effectively improves resin filling efficiency, adapts to the special-shaped cambered surface in the blade when making the core installation moreover.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims

1. The PVC foam core material for the wind driven generator blade is characterized in that: the PVC foam core material is made of a PVC foam substrate; the PVC foam substrate comprises an upper TPU barrier film layer (1), an upper PVC foam board (2), a reinforced mixed fabric layer (3), a lower PVC foam board (4) and a lower TPU barrier film layer (5) which are sequentially arranged from top to bottom; the upper surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves I (11) and a plurality of transverse separation grooves I (12); the upper surface of the PVC foam core material is divided into a plurality of first separating blocks (13) by the first longitudinal separating grooves (11) and the first transverse separating grooves (12); the center of each first separating block (13) is provided with a first glue hole (14); the lower surface of the PVC foam core material is provided with a plurality of longitudinal separation grooves II (15) and a plurality of transverse separation grooves II (16); the lower surface of the PVC foam core material is divided into a plurality of second separating blocks by the second longitudinal separating groove (15) and the second transverse separating groove (16); and a second glue hole is formed in the center of each second separation block.

2. The PVC foam core material for the wind driven generator blade is characterized in that: the longitudinal separation grooves I (11) and the transverse separation grooves I (12) are arranged in a staggered mode, and the longitudinal separation grooves II (15) and the transverse separation grooves II (16) are arranged in a staggered mode.

3. The PVC foam core material for the wind driven generator blade is characterized in that: the longitudinal separation grooves I (11) and the transverse separation grooves I (12) are distributed on the upper surface of the PVC foam core material at equal intervals, the longitudinal separation grooves II (15) and the transverse separation grooves II (16) are distributed on the lower surface of the PVC foam core material at equal intervals, and the intervals between the adjacent longitudinal separation grooves I (11), between the adjacent transverse separation grooves I (12), between the adjacent longitudinal separation grooves II (15) and between the adjacent transverse separation grooves II (16) are equal.

4. The PVC foam core material for the wind driven generator blade is characterized in that: the longitudinal separation groove I (11), the transverse separation groove I (12), the longitudinal separation groove II (15) and the transverse separation groove II (16) are all V-shaped grooves.

5. The PVC foam core material for the wind driven generator blade is characterized in that: the aperture of the first glue hole (14) and the aperture of the second glue hole are 0.2-0.3 mm.

6. The PVC foam core material for the wind driven generator blade is characterized in that: the groove depth of the longitudinal separating groove I (11), the transverse separating groove I (12), the longitudinal separating groove II (15) and the transverse separating groove II (16) is 0.3-0.4 times of the thickness of the core plate.

7. The PVC foam core material for the wind driven generator blade is characterized in that: the first glue hole is communicated with the second glue hole.