CN112428595A

CN112428595A - Composite material pultruded profile capable of being rapidly spliced, splicing method and application thereof

Info

Publication number: CN112428595A
Application number: CN202011414053.XA
Authority: CN
Inventors: 陈湛; 冯毅; 朱旭华; 许嘉浚
Original assignee: Huzhou Shouzhen New Material Technology Co ltd
Current assignee: Huzhou Shouzhen New Material Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-03-02

Abstract

The invention discloses a composite material pultruded profile capable of being rapidly spliced, a splicing method and application thereof, wherein the composite material pultruded profile comprises the following components: the profile comprises a profile body and a profile inserting part, wherein the profile inserting part is a lining piece arranged on the profile body or is one part of the profile body; at least one part of the section bar inserting part is provided with a bulge or a dent or a notch; and/or at least one part of the profile plug-in part can deform to form a bulge or a recess or a notch under the action of external force; and/or at least one part of the profile plug part can be melted or softened under the heating condition; the bulge or the dent or the gap formed before or after the insertion on the section bar insertion part is matched and clamped with the insertion piece or other parts; or the section bar inserting part is welded with the inserting piece or other components. The invention realizes the rapid insertion between the composite material pultruded profiles or between the composite material pultruded profile and other components through the profile connection part, thereby greatly expanding the application range of the composite material pultruded profiles.

Description

Composite material pultruded profile capable of being rapidly spliced, splicing method and application thereof

Technical Field

The invention belongs to the technical field of composite material pultruded profiles, and particularly relates to a composite material pultruded profile capable of being rapidly spliced, a splicing method and application thereof.

Background

The composite material pultrusion process is characterized in that continuous fibers are continuously pulled by a clamping device and simultaneously impregnated by liquid matrix material polymerization precursors, and then the continuous fibers are solidified and molded through a mold cavity with a fixed cross section area to form a composite material pultrusion profile, or semi-solidified prepreg sheets made of the fibers and the liquid matrix material polymerization precursors are preformed and then pulled through a mold cavity with a fixed cross section area to be solidified and molded to form a composite material pultrusion profile, or solidified thermoplastic sheets made of the fibers and the liquid thermoplastic matrix material polymerization precursors are preformed in a heating and softening state and then pulled through a mold cavity with a fixed cross section area to be melted and molded to form the composite material pultrusion profile, the composite material pultrusion process has the advantages of high fiber content, especially high axial strength, and the disadvantages of weak transverse strength and uniform cross section of the profile, quick plugging cannot be performed, that is, the plug connector and the plugging portion are connected together through linear relative motion, and usually, mechanical clamping is realized through interference fit, convex-concave fit or the fit of a protrusion and a notch. For example, in the production of photovoltaic modules and doors and windows, the barbed corner connectors are a new technology for assembling solar frames and door and window curtain wall frames, the barbed corner connectors are inserted into cavities of side frames, friction force between the barbed corner connectors and the cavities is increased through interference fit, stable frame assembly is achieved, meanwhile, the processes of gluing, corner collision, locking and the like can be omitted, and production efficiency and quality are greatly improved. However, this technique cannot be used for solar frames and window and door curtain walls made of pultruded composite materials, mainly for the following reasons:

1) the pultruded composite material cannot generate plastic deformation, so that the thorn cannot be embedded into the wall of the frame-shaped cavity by the corner brace with the thorn;

2) the wall thickness deviation of a cavity of the pultruded composite material profile is large, and the interference fit corner connectors are inserted into the cavity and are not correct, so that the assembled frame is not flat, the mounting notches on the side frame are not aligned, and the top of glass is cracked or hardware mounting is influenced or the end of the side frame is cracked during assembling even seriously;

3) when the photovoltaic module frame and the door and window curtain wall frame made of the existing composite sectional materials are installed on the support through the components, the installation edges need to be provided with screw holes for fastening, and the edges of the installation edges are thin and brittle, so that the photovoltaic module frame and the door and window curtain wall frame are easy to break and break.

Disclosure of Invention

In order to solve the technical problems, the invention provides a composite material pultrusion profile capable of being rapidly spliced, a splicing method and application thereof.

In order to achieve the purpose, the technical scheme of the invention is as follows:

on one hand, the invention discloses a composite material pultrusion profile capable of being rapidly inserted, which comprises the following components: the profile comprises a profile body and at least one profile inserting part, wherein part or all of the material of the profile inserting part can deform under the action of external force, and the profile inserting part is a lining piece arranged on the profile body or a part of the profile body;

at least one part of the section bar inserting part is provided with a bulge or a dent or a notch;

and/or at least one part of the profile plug-in part can deform to form a bulge or a recess or a notch under the action of external force;

and/or at least one part of the profile plug part can be melted or softened under the heating condition;

the bulge or the dent or the gap formed before or after the insertion on the section bar insertion part is matched and clamped with the insertion piece or other parts; or the section bar inserting part is welded with the inserting piece or other components.

The composite material pultruded profile capable of being rapidly inserted and connected realizes the linear insertion and connection between the composite material pultruded profiles or between the composite material pultruded profile and other components through the profile insertion part, and the linear insertion and connection action is simplest, the efficiency is highest, and the mechanical assembly is easy to realize, so that the problem that the composite material pultruded profiles which puzzle the composite material industry for a long time cannot be rapidly inserted and connected is solved at low cost, and the application range of the composite material pultruded profiles is greatly expanded.

The material of the profile insert can be deformed locally or completely under the action of external force, and preferably, all or part of the deformation is still maintained after the external force is removed.

When the section bar inserting part is a lining piece, the lining piece is connected or bonded on the section bar body; or the profile inserting part and the profile body are of an integrated structure, and the profile inserting part is a part of the profile body, preferably an end of the profile body or a part of the end of the profile body; the bulges, the depressions or the notches are made in advance before the insertion or made by applying external force after the insertion, and further, the insertion part can be softened or melted by heating, so that the process is simple and quick and the efficiency is high; meanwhile, when the insertion is carried out through the lining piece, the lining piece serving as the insertion part of the section bar locally reinforces the section bar body, so that the section bar body is prevented from cracking caused by the expansion stress of the insertion piece on the section bar body during the insertion; when the inserting part is softened or melted by heating for inserting, the expansion stress on the section body during inserting is completely avoided due to the softening deformation or melting of the section inserting part which is a part of the section body; the composite material pultrusion section bar provided by the invention can adapt to the existing mechanical splicing process and equipment.

On the basis of the technical scheme, the following improvements can be made:

preferably, the profile body is provided with a notch or a cavity, and the notch or the cavity on the profile body is used for being inserted with the lining element or the plug element; or the lining element is provided with a notch or a cavity, and the notch or the cavity on the lining element is used for being plugged with the plug connector.

By adopting the preferable scheme, the plugging is convenient.

As a preferred scheme, the section bar body is formed by directly compounding a base material and a reinforcing material by adopting a pultrusion process; or the section body is formed by firstly preparing a semi-cured prepreg sheet or a cured thermoplastic composite sheet from a base material and a reinforcing material and then compounding the semi-cured prepreg sheet or the cured thermoplastic composite sheet by adopting a pultrusion process;

the base material includes: a combination of one or more of a thermosetting polymer, a thermoplastic polymer, or a blend or alloy thereof;

the reinforcement material comprises continuous fibers and/or chopped fibers;

the continuous fiber comprises one or more of glass fiber, carbon fiber, basalt fiber, natural fiber and polymer fiber, and the form of the continuous fiber comprises one or more of fiber bundle, fiber silk, fiber felt, fiber woven cloth or non-woven cloth, fiber bonding forming matter, fiber stitch-bonding object or needle-punched fabric.

With the above preferred scheme, the material selection is carried out according to specific situations.

Preferably, the volume of the unidirectional fiber yarns in the profile body accounts for not less than 30 percent of the volume of the profile body;

and/or the volume of the fiber fabric in the profile body accounts for 1-45% of the volume of the profile body;

and/or the volume of the chopped fibers in the profile body accounts for 2-40% of the volume of the profile body.

By adopting the preferable scheme, the axial tensile strength and the axial tensile modulus of the composite material pultruded profile can be improved to the maximum extent, and the optimal material performance is exerted when the composite material pultruded profile is subjected to bending and tensile loads, so that the section size of the composite material pultruded profile is reduced, the material consumption is reduced, and the cost is reduced.

Preferably, the profile plug-in part is a part of the profile body, and the base material is thermoplastic resin;

the polymeric precursor of the thermoplastic resin matrix comprises: the material comprises one or more of caprolactam monomer, nylon 66 salt, acrylic acid or acrylic ester monomer or oligomer or derivative thereof, methyl methacrylate monomer or oligomer or derivative thereof or copolymer thereof with styrene, acrylamide monomer or oligomer or derivative thereof, copolymer of acrylic acid or acrylic ester with styrene or acrylonitrile, styrene, acrylonitrile and reaction precursor of thermoplastic polyurethane.

By adopting the preferred scheme, the polymerization precursors are all liquid, the section bar can be manufactured by using the traditional composite material pultrusion process, the higher fiber content can be realized, the higher fiber infiltration quality can be realized, or the high-performance thermoplastic composite material pultruded section bar can be realized.

Preferably, the reinforcing material and the polymerization precursor of the thermoplastic resin matrix are firstly prepared into a prepreg sheet or a thermoplastic composite sheet, and then the prepreg sheet or the thermoplastic composite sheet is solidified or melted by a pultrusion process to prepare a composite material pultrusion section;

the volume content of the continuous fiber unidirectional yarns in the prepreg sheet or the thermoplastic composite material sheet is 10-70%, the volume content of the fiber fabric is 1-70%, and the volume content of the chopped fibers is 2-70%;

and/or the fiber fabric is arranged on the outer surface or the inner surface or all or part of the inner surface and the outer surface of the composite material pultrusion profile;

and/or the outer surface of the prepreg sheet or the thermoplastic composite sheet is made of a polyester or nylon surfacing mat and a matrix resin.

By adopting the preferable scheme, the composite material pultrusion section prepared by the method overcomes the defects that the thermosetting composite material cannot be recycled and cannot be deformed once being prepared, can be recycled, can be softened by heating and then secondarily shaped even if the section just produced is bent or distorted, and can also be softened by heating before the insertion of the section even if the wall thickness of a cavity of the section has tolerance, thereby avoiding the stress generated when the connector is inserted.

Preferably, the difference between the refractive index of the matrix material and the refractive index of the reinforcing material is less than 0.2.

By adopting the preferable scheme, the composite material pultrusion section with light transmission and high strength can be prepared.

Preferably, all or part of the outer surface of the profile body is provided with a weather-resistant surface layer;

the weather-resistant surface layer is formed by compounding a polyester or nylon surface felt and a base material or is formed by weather-resistant paint.

By adopting the preferable scheme, the section bar has better weather resistance, is scratch-resistant, prevents glass fiber from being exposed and pricked, and has the advantages of environment-friendly construction process, high efficiency, no raw material waste and low cost.

Preferably, the profile body has cantilevers, and all or a part of the reinforcing material of the root of at least one of the cantilevers is a fiber bulked yarn and/or a fiber fabric.

Adopt above-mentioned preferred scheme, strengthen the cantilever root, can reduce the reinforcement or cancel the reinforcement to save the cost.

Preferably, the opening or the end of the profile body or the stress concentration or the impact bearing part or the root of the cantilever is provided with a reinforcing body.

Adopt above-mentioned preferred scheme, adopt the reinforcement can carry out the reinforcement to the weak department of combined material pultrusion section bar, and need not increase the wall thickness or the cross-sectional dimension of combined material pultrusion section bar in whole length direction, do not increase the weight of combined material pultrusion section bar too much, when adopting fibre bulked yarn reinforcing at the section bar root, bulked yarn can strengthen the perpendicular to fibre direction's of root performance, can reduce the reinforcement or cancel the reinforcement to save cost.

Preferably, the plastic sheet is welded to the end of the profile plug-in part, and the plastic sheet is welded to the other component by melting under heating.

By adopting the preferable scheme, the plastic sheets are used for realizing the welding between the composite material pultruded profiles or between the composite material pultruded profiles and other components.

Preferably, the lining element is prepared from the following materials: a combination of one or more of metal, plastic or composites thereof, rubber or blends thereof.

By adopting the preferable scheme, the lining piece is made of the preparation material which is easy to manufacture the bulge, the dent or the notch, or deform after being inserted and clamp with the plug connector.

Preferably, the lining element is provided with a lining element connecting part, and the lining element is in close contact with the profile body or the notch or the cavity on the profile body through the lining element connecting part.

By adopting the preferable scheme, the lining piece can be easily inserted into the plug-in unit, the splicing precision between the profiles after splicing is high, and the splicing generates small torsional stress.

Preferably, the lining element connecting part is of a barb or tooth or convex or concave or notch structure; or a deformable portion made of a combination of one or more of plastic or a composite thereof, rubber or a blend thereof.

By adopting the preferred scheme, because the wall thickness precision of the cavity of the composite material pultrusion profile is difficult to control, the lining piece comprising the barb or the tooth or the bulge or the dent or the notch or the deformable part can compensate the tolerance of the wall thickness of the cavity of the composite material pultrusion profile through the deformation of the deformable part by the positioning tool when being fixed in the cavity of the composite material pultrusion profile, so that the fixing position of the lining piece is accurate, the plug connector can be inserted into the lining piece easily, the splicing precision between the inserted and connected profiles is high, and the inserting and connecting produces small torsional stress.

Preferably, the profile body is provided with a notch or a window at a position corresponding to a position where the protrusion, the recess or the notch is required to be manufactured on the lining element, and the protrusion, the recess or the notch is formed by applying external force to the lining element through the notch or the window.

By adopting the preferable scheme, the bulge or the dent or the gap on the section bar inserting part is made by applying external force after the inserting piece is inserted, and when the frame is assembled, after the inserting piece is inserted into the composite material pultrusion section bar, a universal angle extruding machine can be used for pressing the lining piece to deform and clamp the inserting piece, so that firm combination is realized.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: inserting the plug connector into the profile plugging part of any composite material pultrusion profile, wherein a bulge or a recess or a notch is prefabricated on the profile plugging part, so that the profile plugging part deforms and/or the plug connector deforms, and the profile plugging part is clamped with the plug connector.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: inserting the plug connector into the profile plugging part of any composite material pultrusion profile, applying external force to the profile plugging part, and forming a bulge or a recess or a notch on the profile plugging part to deform the profile plugging part and/or deform the plug connector so as to realize the clamping connection of the profile plugging part and the plug connector.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: heating the profile plug part of any one of the composite material pultrusion profiles to enable at least one part of the profile plug part to be melted and welded with the plug part and/or the other part; or at least one part of the section bar inserting part is softened, and then external force is applied to the section bar inserting part to deform the section bar inserting part and/or the inserting part is deformed, so that the section bar inserting part and the inserting part are clamped.

Preferably, the method further comprises the following steps: and welding a plastic sheet to the end of the section bar inserting part, heating the plastic sheet to melt the plastic sheet, inserting the plastic sheet into the inserting part and/or attaching another part and/or another section of section bar, and attaching and welding the section bar inserting part with the other part and/or another section of section bar.

By adopting the preferable scheme, the ends of the section bar splicing parts of the two sections of section bars are jointed and welded.

In another aspect, the present invention discloses a photovoltaic module system, comprising: a frame and/or a support made of any one of the composite material pultrusion profiles; and/or the frame and/or the bracket are spliced by any one of the splicing methods of the composite material pultrusion profiles.

Preferably, the frame is provided with a section bar mounting edge which is in close contact with the photovoltaic support, and one or more of the bolt hole, the periphery of the hole, the root of the section bar mounting edge and the periphery of the root of the section bar mounting edge, which are connected with the support, are provided with reinforcing bodies.

By adopting the preferable scheme, the strength is ensured. The reinforcement is mounted in a specific manner, such as mechanically bonded, welded or glued or co-cured.

According to the preferable scheme, the sectional material mounting edge is connected with the photovoltaic support through a bolt, an L-shaped gasket or a U-shaped gasket is mounted between a nut on the bolt and the sectional material mounting edge, and the width of the L-shaped gasket or the U-shaped gasket is larger than the diameter of the screw hole;

the vertical edge of the L-shaped gasket or the U-shaped gasket is connected with the vertical edge of the frame, and the horizontal edge is connected with the section bar mounting edge and the photovoltaic support through bolts and nuts respectively.

Adopt above-mentioned preferred scheme, when the construction bolt atress, L shape gasket or U-shaped gasket can move towards section bar installation limit, make the root atress on section bar installation limit, owing to clearance or have flexible gasket again, L shape gasket or U-shaped gasket can be retrained by the connecting hole on stile, so the load can transmit on the frame stile, avoid the root atress fracture on section bar installation limit.

Preferably, a gap is reserved between the corner of the L-shaped gasket or the U-shaped gasket and the corner of the horizontal side of the L-shaped gasket or the U-shaped gasket and the mounting surface of the profile mounting side, or a plastic or rubber gasket is mounted on the L-shaped gasket or the U-shaped gasket.

By adopting the preferable scheme, the effect is better.

Preferably, the frame is provided with a cavity, and the average wall thickness of the cavity is less than 2.5 mm.

By adopting the preferable scheme, the photovoltaic module system manufactured in the way is light in weight and low in cost. Preferably, the wall thickness of the cavity is 1.2-2 mm.

In another aspect, the present invention discloses a fenestration curtain wall system comprising: a frame made of any one of the composite material pultrusion profiles;

or the frame is spliced by any one of the splicing methods of the composite material pultrusion profiles.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a composite material pultruded profile for a photovoltaic module system without a plug connector according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another composite pultruded profile for a photovoltaic module system with a plug connector according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a composite material pultruded profile for a door and window curtain wall without a plug connector according to an embodiment of the present invention.

Fig. 4 is one of the schematic structural diagrams of another composite material pultruded profile for a curtain wall according to an embodiment of the present invention.

Fig. 5 is a perspective view corresponding to the structure shown in fig. 4.

Fig. 6 is a second schematic structural diagram of the composite material pultruded profile for a door/window curtain wall without the plug connector according to the embodiment of the present invention.

Fig. 7 is a second schematic structural view of another composite material pultruded profile for a curtain wall according to an embodiment of the present invention.

Fig. 8 is a perspective view corresponding to the structure shown in fig. 7.

Fig. 9 is a schematic view of a partial installation structure of a photovoltaic module according to an embodiment of the present invention.

Fig. 10 is a front view of a partial installation structure of a photovoltaic module according to an embodiment of the present invention.

Wherein: 1-composite material pultrusion profile, 11-profile body, 111-notch or cavity, 112-notch or window, 12-profile plug-in part, 13-lining piece, 131-notch or cavity, 14-bulge or recess or notch, 2-plug-in piece, 3-frame, 31-profile mounting edge, 32-vertical edge, 33-cavity, 4-bolt, 5-nut, 6-L-shaped gasket or U-shaped gasket, 61-vertical edge and 62-horizontal edge.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 expression "comprising" an element is an "open" expression which merely means that there are corresponding parts, which should not be interpreted as excluding additional parts. In some embodiments of a quick-connect composite pultruded profile, a splicing method and applications thereof, as shown in fig. 1-8, a composite pultruded profile 1 comprises: the profile comprises a profile body 11 and at least one profile inserting part 12, wherein part or all of the material of the profile inserting part 12 can deform under the action of external force, and the profile inserting part 12 is a lining part 13 arranged on the profile body 11 or is a part of the profile body 11;

at least one part of the profile plug-in part 12 has a projection or depression or indentation 14;

and/or at least one part of the profile plug-in part 12 can be deformed under the action of external force to form a bulge or a depression or a notch 14;

and/or at least one part of the profile plug-in part 12 can melt or soften under the heating conditions;

a bulge or a dent or a gap 14 formed before or after splicing on the section splicing part 12 is matched and clamped with the splicing part 2 or other parts; or the section bar inserting part is directly welded with the inserting piece or other components.

The heating method includes, but is not limited to, hot air heating, contact heating, infrared heating, microwave heating, ultrasonic heating, friction heating, vibration heating, and preset resistance wire heating.

According to the composite material pultruded profile 1 capable of being rapidly inserted, linear insertion between the composite material pultruded profiles 1 or between the composite material pultruded profile 1 and other components is realized through the profile insertion part, and as the linear insertion action is simplest, the efficiency is highest, and the mechanical assembly is easy to realize, the problem that the composite material pultruded profile 1 which puzzles the composite material industry for a long time cannot be rapidly inserted is solved at low cost, and the application range of the composite material pultruded profile 1 is greatly expanded.

The material of the profile insert 12 can be deformed locally or completely by external force, and preferably all or part of the deformation remains after the external force has been removed.

When the section bar inserting part 12 is the lining piece 13, the lining piece 13 is connected or bonded on the section bar body 11; or, the profile plug-in part 12 and the profile body 11 are of an integrated structure, and the profile plug-in part 12 is a part of the profile body 11, preferably, an end of the profile body 11 or a part of an end of the profile body 11; the bulge or the dent or the notch 14 is made in advance before the insertion or made by applying external force after the insertion, furthermore, the insertion part can be softened or melted by heating, the bulge or the dent or the notch 14 is made on the insertion part under the action of external force or the insertion part is welded with other parts, the process is simple and quick, and the efficiency is high; meanwhile, when the insertion is carried out through the lining piece 13, the lining piece 13 serving as the insertion part of the section bar locally reinforces the section bar body 11, so that the section bar body 11 is prevented from cracking caused by the expansion stress of the insertion piece 2 to the section bar body 11 during the insertion; when the inserting part is softened or melted by heating for inserting, because the section inserting part 12 which is a part of the section body 11 is softened, deformed or melted, the expansion stress to the section body 11 during inserting is completely avoided; the composite material pultruded profile 1 provided by the present invention can be adapted to the existing mechanical splicing process and equipment.

In order to further optimize the performance of the invention, in other embodiments, the remaining features are the same, except that the profile body 11 has a slot or cavity 111, the slot or cavity 111 on the profile body 11 being used for plugging with a lining or plug-in element; alternatively, the liner has a slot or cavity 131, the slot or cavity 131 in the liner 13 being for mating with a plug.

By adopting the preferable scheme, the plugging is convenient. In order to further optimize the implementation effect of the invention, in other embodiments, the rest features are the same, except that the profile body 11 is formed by directly compounding a base material and a reinforcing material by a pultrusion process; or, the profile body 11 is formed by first preparing a semi-cured prepreg sheet or a cured thermoplastic composite sheet from a base material and a reinforcing material and then compounding the semi-cured prepreg sheet or the cured thermoplastic composite sheet by a pultrusion process;

the reinforcement material comprises continuous fibers and/or chopped fibers;

With the above preferred scheme, the material selection is carried out according to specific situations. Preferably, the reinforcing material close to the outer surface of the composite pultruded profile 1 is a surfacing felt or fabric made of polyester or nylon; more preferably, the surfacing mat or fabric is dyed and/or contains antistatic agents, the composite pultruded profile 1 has an aesthetically pleasing surface, no charge is accumulated on the surface, a resin rich layer can be formed to prevent fiber snagging during use and to improve the profile's weatherability.

In order to further optimize the implementation effect of the invention, in other embodiments, the rest of the characteristic techniques are the same, except that the volume of the unidirectional fiber yarns in the profile body 11 accounts for not less than 30% of the volume of the profile body 11;

and/or the volume of the fiber fabric in the profile body 11 accounts for 1-70% of the volume of the profile body 11;

and/or the volume of the short-cut fibers in the profile body 11 accounts for 2-70% of the volume of the profile body 11.

By adopting the preferable scheme, the axial tensile strength and the axial tensile modulus of the composite material pultruded profile 1 can be improved to the maximum extent, and the optimal material performance is exerted when the composite material pultruded profile 1 is subjected to bending and tensile loads, so that the section size of the composite material pultruded profile 1 is reduced, the material consumption is reduced, and the cost is reduced.

In order to further optimize the implementation effect of the present invention, in other embodiments, the rest features are the same, except that the profile plug-in part 12 is a part of the profile body 11, and the matrix material is thermoplastic resin;

the polymeric precursor of the thermoplastic resin matrix comprises: one or more of caprolactam monomer, nylon 66 salt, acrylic acid or acrylic ester monomer or oligomer or derivative thereof, methyl methacrylate monomer or oligomer or derivative thereof, acrylamide monomer or oligomer or derivative thereof, acrylic acid or acrylic ester or oligomer or derivative thereof or copolymer thereof, styrene, acrylonitrile and reaction precursor of thermoplastic polyurethane.

By adopting the preferred scheme, the polymerization precursors are all liquid, the section bar can be manufactured by using the traditional composite material pultrusion process, the higher fiber content can be realized, the higher fiber infiltration quality can be realized, and the high-performance thermoplastic composite material pultruded section bar 1 can be obtained.

In order to further optimize the implementation effect of the invention, in other embodiments, the rest of the features are the same, except that the reinforcing material is made into a prepreg sheet or a thermoplastic composite sheet with the polymerization precursor of the thermoplastic resin matrix, and then the prepreg sheet or the thermoplastic composite sheet is solidified or melted by a pultrusion process to make the composite material pultruded profile 1;

the volume content of the continuous fiber unidirectional yarns in the prepreg sheet or the thermoplastic composite material sheet is 10-70%, and/or the volume content of the fiber fabric is 1-70%, and/or the volume content of the chopped fibers is 2-70%;

and/or the fiber fabric is arranged on the outer surface or the inner surface or all or part of the inner and outer surfaces of the composite material pultruded profile 1;

By adopting the preferable scheme, the composite material pultrusion profile 1 prepared by the method overcomes the defects that the thermosetting composite material cannot be recycled and cannot be deformed once being prepared, can be recycled, can be softened by heating and then secondarily shaped even if the profile just produced is bent or distorted, and can also be softened by heating to soften the profile inserting part 12 before inserting even if the wall thickness of a cavity of the profile has tolerance, thereby avoiding the stress generated when the connector 2 is inserted.

In order to further optimize the implementation of the invention, in other embodiments, the remaining features are the same, except that the refractive index of the matrix material differs from the refractive index of the reinforcement material by less than 0.2.

By adopting the preferable scheme, the composite material pultruded profile 1 which is light-transmitting and has high strength can be prepared. Preferably, the reinforcing material is a fiber; preferably, the refractive index of the matrix material differs from the refractive index of the reinforcement material by less than 0.1.

In order to further optimize the working effect of the invention, in other embodiments, the remaining features are the same, except that all or part of the outer surface of the profile body 11 is provided with a weather-resistant surface layer;

With the above preferred embodiments, the coating includes but is not limited to powder coating, solvent-free coating, water-based coating, the coating variety includes but is not limited to fluorine-containing coating, silicone coating, ceramic coating, polyurethane and acrylic-polyurethane coating, transparent or opaque light-cured acrylate coating or modified acrylate coating, the coating curing method includes but is not limited to heat curing, radiation curing, light curing, and the coating application method includes but is not limited to air spraying, vacuum spraying, airless spraying, electrostatic spraying, wiping, roller coating, draw coating, and curtain coating.

In order to further optimize the working effect of the invention, in other embodiments, the remaining features are the same, except that the profile body 11 has cantilevers and all or part of the reinforcing material of the root of at least one cantilever is a fiber bulked yarn and/or a fiber fabric.

Preferably, the opening or the end of the profile body 11, or the stress concentration or the impact bearing or the root of the cantilever has a reinforcement.

By adopting the preferable scheme, the reinforcement is one or a combination of a plurality of metals, plastics or fiber reinforced materials thereof, thermosetting composite molding materials or prepreg, and the reinforcement and the profile body 11 are connected by one or a combination of a plurality of mechanical fastening, riveting, bonding, welding and co-curing modes. Preferably, the reinforcing body is provided with reinforcing ribs; more preferably, the reinforcing ribs are at an angle to the length direction of the composite pultruded profile 1, more preferably, the reinforcing ribs are perpendicular to the length direction of the composite pultruded profile 1; preferably, the reinforcement is made of a fibre-reinforced plastic and the plastic is the same or similarly compatible with the matrix material of the composite pultruded profile 1; more preferably, the fibre-reinforced plastic reinforcement contains at least 20% by volume of continuous fibres and the continuous fibres are at an angle to the length direction of the composite pultruded profile 1, more preferably the continuous fibres are perpendicular to the length direction of the composite pultruded profile 1.

Adopt the reinforcement can carry out the reinforcement to the weak department of combined material pultrusion section bar 1, and need not increase combined material pultrusion section bar 1's wall thickness or cross-sectional dimension in whole length direction, do not increase the weight of combined material pultrusion section bar 1 too much, when adopting fibre bulking yarn reinforcing at the section bar root, the performance of perpendicular to fibre direction at root can be strengthened to the bulking yarn, can reduce the reinforcement or cancel the reinforcement to save the cost.

In order to further optimize the implementation effect of the invention, in other embodiments, the other features are the same, except that the plastic sheet is welded to the end of the profile inserting part 12, and the plastic sheet is welded to other components by melting under heating; preferably, plastic sheets are welded to the splicing parts 12 of the two sections of the section bar 1, and the plastic sheets are melted under heating condition to enable the two splicing parts 12 to be rapidly attached to each other so as to realize welding.

With the preferred solution described above, the welding between the composite pultruded profiles 1 or between the composite pultruded profile 1 and other components is achieved by plastic sheets.

In order to further optimize the working effect of the invention, in other embodiments, the remaining features are the same, except that the lining element 13 is made of the following materials: a combination of one or more of metal, plastic or composites thereof, rubber or blends thereof.

With the preferred embodiment, the material used to make the lining element 13 is relatively easy to make the protrusion or depression or indentation 14, or to deform after insertion and engage with the connector 2. Preferably, the liner 13 is made of a material selected from the group consisting of aluminum alloys, steel, copper, and plastics, in combination with one or more of these.

The lining piece 13 is provided with a notch or a cavity 131 which is used for being matched and installed with the plug connector 2; alternatively, the lining element 13 is a groove-like or tubular profile, which on the one hand can fasten the plug 2 and on the other hand can reinforce the end of the profile body 11.

In order to further optimize the working effect of the invention, in other embodiments the remaining features are the same, except that a lining element connection is provided on the lining element 13, by means of which the lining element 13 is in close contact with the profile body 11 or the slot or cavity 111 on the profile body 11.

By adopting the preferable scheme, the plug connector 2 is relatively easy to be inserted into the lining piece 13, the splicing precision between the profiles after splicing is high, and the splicing generates small torsional stress.

Furthermore, the lining element connecting part is of a barb or tooth or bulge or recess or notch structure; or a deformable portion made of a combination of one or more of plastic or a composite thereof, rubber or a blend thereof.

By adopting the preferred scheme, because the wall thickness precision of the cavity of the composite material pultrusion profile 1 is difficult to control, the lining piece 13 comprising the barb or the tooth or the bulge or the dent or the notch or the deformable part can compensate the tolerance of the wall thickness of the cavity of the composite material pultrusion profile 1 through the deformation of the deformable part by the positioning tool when being fixed in the cavity of the composite material pultrusion profile 1, so that the fixing position of the lining piece 13 is accurate, the lining piece 13 can be easily inserted into the plug-in piece 2, the splicing precision between the profiles after being spliced is high, and the splicing generates small torsional stress.

The matching part of the lining piece 13 and the section bar body 11 is provided with barbs or teeth or bulges or depressions or notches, the barbs or teeth or bulges or depressions or notches are in close contact with the section bar body 11, when the wall thickness of the cavity 111 of the section bar body 11 is uneven, when the lining piece 13 is inserted into the cavity 111 through a positioning tool, the barbs or the bulges or the depressions or the notches on the lining piece 13 can deform to enable the position of the lining piece 13 in the cavity 111 to reach the design requirement, so that the insertion of the plug piece 2 into the lining piece 13 is facilitated, and the cracking of the section bar body 11 caused by the overlarge matching stress between the plug piece 2 and the section bar body 11 due to the torsion of the plug piece 2 is avoided.

In order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features are the same, except that the profile body 11 is provided with a notch or window 112 at a position corresponding to the position where the protrusion or depression or notch 14 needs to be manufactured on the lining 13, and the protrusion or depression or notch 14 is formed by applying an external force to the lining 13 through the notch or window 112.

By adopting the preferable scheme, the bulge or the dent or the gap 14 on the section inserting part 12 is made by applying external force after the inserting part 2 is inserted, and when the frame is assembled, after the inserting part 2 is inserted into the composite material pultrusion section 1, a universal angle extruder can be used for pressing the connecting part to deform and clamp the connecting part 2, so that firm combination is realized.

In some embodiments, the profile body 11 is provided with a notch or cavity 111 for fitting with the plug element 2 or the lining element 13, said notch or cavity 111 facilitating the positioning and fixing of the lining element 13.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: inserting the plug connector 2 into the profile plug-in part 12 of any one of the composite material pultruded profiles 1, and prefabricating a bulge or a recess or a gap 14 on the profile plug-in part 12 to deform the profile plug-in part 12 and/or the plug connector 2 so as to realize the clamping connection of the profile plug-in part 12 and the plug connector 2.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: inserting the plug connector 2 into the profile plug-in part 12 of any one of the composite material pultrusion profiles, applying external force to the profile plug-in part 12, and forming a bulge or a recess or a gap 14 on the profile plug-in part 12 to deform the profile plug-in part 12 and/or the plug connector 2 so as to realize the clamping connection of the profile plug-in part 12 and the plug connector 2.

On the other hand, the invention discloses a splicing method of composite material pultruded profiles, which comprises the following steps: heating the profile plug part 12 of any one of the composite material pultrusion profiles 1 to enable at least one part of the profile plug part 12 to be melted and welded with the plug part 2 and/or another component; or at least one part of the section bar inserting part is softened, and then external force is applied to the section bar inserting part to deform the section bar inserting part and/or the inserting part is deformed, so that the section bar inserting part and the inserting part are clamped.

On the other hand, the invention discloses a splicing method of the composite material pultrusion section, which also comprises the following steps: welding the plastic sheet to the end of the section bar inserting part 12, heating the plastic sheet to melt, and then quickly inserting the plastic sheet into the inserting part 2, or adhering other parts or another section bar, so that the end of the section bar inserting part 12 of the section bar 1 and other parts or two sections of section bars 1 are adhered and welded.

The traditional composite material frame depends on a method of bonding, screw connection or riveting, and has low efficiency and poor precision. The splicing method of the four composite material pultruded profiles disclosed by the invention is mechanical connection, can realize quick splicing, is firm in fixation once spliced, accurate in positioning, high in efficiency and suitable for large-scale industrial assembly.

As shown in fig. 9 and 10, in another aspect, the present invention discloses a photovoltaic module system comprising: a frame 3 and/or a support made of any one of the composite material pultrusion profiles; and/or the frame 3 and/or the support are/is formed by splicing any one of the composite material pultrusion profiles by the splicing method.

In order to further optimize the implementation effect of the invention, in other embodiments, the rest features are the same, except that a profile mounting edge 31 is provided on the frame 3, the profile mounting edge is in close contact with the photovoltaic bracket, and a reinforcement is provided at one or more of the opening of the bolt 4 connecting the profile mounting edge 31 and the bracket, the periphery of the opening, the root of the profile mounting edge 31 and the periphery of the root.

As another reinforcement scheme, all or a part of the reinforcing material at the junction of the profile mounting edge 31 and the vertical edge 32 is fiber expansion yarn, and the yarn can play a reinforcing role in the direction perpendicular to the fiber direction, so that the reinforcement body 6 or the fiber fabric can be reduced or eliminated, the cost is further reduced, the production steps are simplified, and the cost is reduced.

In order to further optimize the implementation effect of the invention, in other embodiments, the other characteristic technologies are the same, except that the section bar mounting edge 31 is connected with the photovoltaic bracket by using a bolt 4, an L-shaped gasket or a U-shaped gasket 6 is mounted between a nut 5 on the bolt 4 and the section bar mounting edge 31, and the width of the L-shaped gasket or the U-shaped gasket 6 is greater than the diameter of the screw hole;

the vertical edge 61 of the L-shaped gasket or the U-shaped gasket 6 is connected with the vertical edge 32 of the frame 3, and the horizontal edge 62 is connected with the section bar mounting edge 31 and the photovoltaic bracket through the bolt 4 and the nut 5 respectively.

By adopting the preferable scheme, the length of the L-shaped gasket or the U-shaped gasket 6 is more than 10mm, and the thickness of the L-shaped gasket or the U-shaped gasket is more than 0.5 mm. When the mounting bolt 4 is stressed, the L-shaped gasket or the U-shaped gasket 6 moves towards the profile mounting edge 31, so that the root of the profile mounting edge 31 is stressed, and due to the clearance or the flexible gasket, the vertical edge 61 of the L-shaped gasket or the U-shaped gasket 6 is restrained by the connecting hole of the vertical edge 32, so that the load can be transmitted to the vertical edge 32 of the frame 3, and the root of the profile mounting edge 31 is prevented from being stressed and cracked.

In order to further optimize the implementation effect of the invention, in other embodiments, the rest characteristics are the same, except that the corner of the L-shaped gasket or U-shaped gasket 6 is spaced from the installation surface of the profile installation edge 31 by a gap or is provided with a plastic or rubber gasket from the installation surface of the horizontal edge 62.

By adopting the preferable scheme, the effect is better.

In order to further optimize the implementation effect of the invention, in other embodiments, the rest features are the same, except that a cavity 33 is provided on the frame 3, and the average wall thickness of the cavity 33 is less than 2.5 mm.

By adopting the preferable scheme, the photovoltaic module system manufactured in the way is light in weight and low in cost. Preferably, the wall thickness of the cavity 33 is 1.2-2 mm.

For a better understanding of the embodiments of the present invention, the following specific examples are disclosed below.

Fig. 1 shows a pultruded composite profile 1 for a photovoltaic module frame, which includes a profile body 11, the profile body 11 includes a cavity 111, a lining member 13 is inserted into the cavity 111 as a profile plug and fixed by an adhesive, meanwhile, the lining member 13 includes a cavity 131, the inner surface of the cavity 131 further includes a raised circular point, the outer surface of the lining member 13 includes a pawl, when the lining member 13 is inserted into the cavity 111 by a positioning tool, if the wall thickness of the cavity 111 has a tolerance, the positioning tool deforms the pawl of the lining member 13 so as to make the relative position of the lining member 13 in the cavity 111 meet the design requirements.

When the photovoltaic module is assembled, the plug connector 2 in the other section of the pultruded composite material profile 1 shown in fig. 2 is inserted into the cavity 131 in the lining 13 in the cavity 111 of the profile 1 shown in fig. 1, and the lining 13 is accurately positioned, so that the plug connector 2 can be smoothly inserted, the splicing seams of the pultruded composite materials 1 at two ends are neat and attractive, and the profile body 11 cannot be cracked due to overlarge stress between the plug connector 2 and the cavity 111. Meanwhile, the inner surface of the cavity 131 of the lining element 13 is also provided with raised dots, when the plug connector 2 is inserted into the cavity 131 of the lining element 13, the raised dots on the inner surface of the cavity 131 deform the barbs on the surface of the plug connector 2, so that the plug connector 2 cannot exit from the cavity 131 to realize accurate, rapid and firm splicing between the two sections of pultruded composite materials.

The barbs of the plug-in connectors 2 shown in fig. 2 are on the inner side of the photovoltaic module frame, and can also be arranged on the outer side or on both sides, and the barbs on the plug-in connectors 2 can also be teeth, protrusions, depressions or notches with the same function, and the like. It can be seen that the lining element 13 not only serves the function of compensating the positioning of the connecting profile 1, but also of reinforcing the ends of the profile 1, since the ends of the pultruded composite profile 1 are the weakest and most prone to cracking, and are subjected to the highest concentrated stresses.

Further, as shown in fig. 9, the pultruded composite profile 1 for photovoltaic module frame in this embodiment further has a profile mounting edge 31, a vertical edge 32 and a cavity 33, wherein the profile mounting edge 31 is connected to the bracket by a bolt 4 and a nut 5 with a diameter of 8mm, an L-shaped gasket or a U-shaped gasket 6 is disposed between the nut 5 and the mounting edge 31, a vertical edge 61 of the L-shaped gasket or the U-shaped gasket 6 is connected to the profile vertical edge 32 by a rivet, a 1mm gap is provided between the bottom of a horizontal edge 62 of the L-shaped gasket or the U-shaped gasket 6 and the upper surface of the profile mounting edge 31, when the photovoltaic module is subjected to reverse wind pressure, the photovoltaic module bracket pulls the pultruded composite profile 1 for frame by the nut 5, so that the profile mounting edge 31 is subjected to cantilever bending force, the bending stress at the root of the profile mounting edge 31 is the largest, and the gap is just one of the lowest-strength portions of the pultruded, if the safety of the photovoltaic module is ensured, the photovoltaic module must be thickened, so that the cost is increased, as before, the L-shaped gasket or the U-shaped gasket 6 is added, the cantilever bending force can be converted into the compressive stress and the shearing stress of the L-shaped gasket or the vertical edge 61 of the U-shaped gasket to the vertical edge 32 of the sectional material through the rivet, the safety coefficient is greatly increased because the strength of the sectional material 1 is enough, meanwhile, the wall thickness of the sectional material 1 is not required to be increased, the cost is prevented from rising, and when the galvanized steel or aluminum alloy reinforcing sheet with the thickness of 0.5-2.5mm and/or the reinforcing ribs perpendicular to the length direction of the sectional material 1 is adopted, the reverse wind pressure resistance of the photovoltaic module can be improved by more than 30%.

According to the design of the present case, optionally, the pultruded composite photovoltaic frame is manufactured by using polyurethane resin as a base material and glass fiber unidirectional yarns as a reinforcing material, the volume content of the glass fiber unidirectional yarns in the profile is 60-65%, the average wall thickness of the cavity 33 of the profile 1 is 1.2-2mm, the average wall thickness of the profile mounting edge 31 is 1.2-2mm, preferably, the outermost layer of the reinforcing fibers of the profile 1 is covered with a surface felt made of nylon or polyester fibers, the gram weight is 20-60 g/m2, optionally, the surface of the profile 1 is sprayed with the water-based polyurethane-acrylate coating by air and is heated and cured to form a weather-resistant coating, preferably, the addition of pigment or colour paste to the resin makes the cut colour of the profile 1 close to the colour of the surface coating, so that the surface color of the section bar 1 is still uniform when the coating is worn during the process of loading, transporting, installing and using the section bar 1. The polyurethane resin includes but is not limited to Baydur18BD157/Desmodur1511L two-component polyurethane resin system of Corsai-induced polymer and corresponding internal mold release agent and color paste, and the glass fiber unidirectional yarn includes but is not limited to alkali-free untwisted glass fiber direct yarn ECR469P-4800tex of Chongqing International composite Co. According to the photovoltaic module frame of this embodiment preparation, the performance satisfies the requirement completely, can adopt current photovoltaic module to piece together frame equipment and assemble, and efficient, precision are high, cost reduction. Meanwhile, as the photovoltaic frame made of the pultrusion composite material is good in insulating property, the electric leakage safety and the power generation life of the photovoltaic module can be improved.

The second concrete example is the same as the first concrete example except that the matrix resin is changed into acrylic thermoplastic resin containing methacrylic acid monomer and oligomer thereof, and simultaneously contains a curing agent and an internal release agent. Since the acrylic thermoplastic resin has good weather resistance and can be coated without the need, the cost can be further reduced. Preferably, the outer surface of the section bar 1 can be coated with a transparent solvent-free acrylate coating by a drawing coating method, and the coating is cured by a photocuring method, so that the section bar has better weather resistance, is scratch-resistant, prevents glass fibers from being exposed and pricked, and is environment-friendly and efficient in construction process, free of raw material waste and low in cost.

Meanwhile, when the section bar 1 is slightly bent, the section bar 1 can be straightened and shaped by heating the section bar 1 to 160-200 ℃; further, the profile body 12 is heated by hot air to be softened, then the lining part 13 with the inverted teeth is inserted into the cavity 111, and then a tool with convex points is used for pressing the profile body 12 to enable the cavity 111 to generate convex points, so that the lining part 13 is clamped, the step of adhering the lining part 13 is omitted, the process is more efficient and reliable, and even if the wall thickness of the cavity of the profile 1 has certain tolerance, the lining part is easy to position accurately because the profile body 12 is inserted into the lining part 13 under the heating and softening, and the internal stress can not be generated on the profile body 12. Preferably, the lining element 13 is made by plastic extrusion molding, and is welded with the profile body 12 into a whole by a heating mode after being inserted into the profile body 12, so that the bonding step can be eliminated, and the profile body 12 can be reinforced; when the plug connector 2 is inserted into the lining piece 13 in the plugging process, the convex points on the cavity 131 on the lining piece 13 deform to clamp the barbs on the plug connector 2, so that the plug connector 2 is clamped firmly; preferably, the L-shaped gasket or the U-shaped gasket 6 is made of the same resin and positive and negative 45-degree glass fiber biaxial cloth through a pultrusion process, the L-shaped gasket or the U-shaped gasket 6 is welded with the vertical edge and the horizontal edge of the profile in a heating mode for reinforcement, and the reinforcement mode is faster and more reliable. The thermoplastic acrylic resin used in this example includes, but is not limited to, ELIUM C595 liquid acrylic resin from ARKEMA and the corresponding peroxide curing agent and internal mold release agent.

In the third specific example, the other specific examples are different from the second specific example in that, without the lining member 13, the external force is applied under the condition that the profile body 12 serving as the profile insertion part is softened by heating to directly insert the plug-in member 2 into the cavity 111, and then the external force is applied to the insertion part 12 by using a tool with convex points to generate convex points in the cavity 111 so as to clamp the plug-in member 2, so that the pultrusion composite material profile 1 can be spliced more quickly. Preferably, the protruding points may be preformed on the profile body 12, the profile body 12 is softened under heating and then pressed by a protruding tool to form the cavity 111 of the protruding profile plugging portion 12, and then the barbed plug connector 2 is inserted into the cavity 111 at normal temperature, and the protruding points on the cavity 111 and/or the barbs on the plug connector 2 are deformed to achieve firm clamping. When the frame is pieced together to photovoltaic module, heating equipment is for setting up in the hot-blast blowpipe that photovoltaic module pieced together the long limit bight of frame machine, and hot-blast blowpipe aims at the bight heating on long limit and makes it soften, simultaneously, sets up in the pneumatic compact heap of piecing together the long limit bight and presss from both sides tight to long limit bight after plug connector 2 inserts cavity 111, thereby bump messenger long limit bight's cavity 111 produces the bump card jail plug connector 2 on the pneumatic compact heap. Like this, piece together the frame machine to current photovoltaic module and add the pultrusion combined material photovoltaic module that reforms transform a little and just can realize mechanization and piece together the frame. When the optimal scheme of prefabricating the salient points on the profile body 12 is adopted, the frame splicing of the photovoltaic module frame made of the composite material pultrusion profile can be realized without modifying the frame splicing equipment of the photovoltaic module.

The difference between the specific example four and the specific example two is that a styrene monomer is added into the thermoplastic acrylic resin to adjust the refractive index of the acrylic resin, so that the difference between the refractive index of the acrylic resin and the refractive index of the unidirectional glass fiber yarn is within 0.1, and thus, not only is the resin viscosity reduced, the fiber infiltration quality improved, but also the resin cost is reduced, and most importantly, the manufactured pultrusion composite material section bar 1 has better light transmittance, so that the photovoltaic module frame manufactured by the section bar 1 cannot excessively shield the photovoltaic power generation sheet by light, and the power generation efficiency of the photovoltaic module is improved.

Fifth specific example, the difference between the first specific example and the second specific example is that the reinforcing material of the inner and outer surfaces of the profile 1 is glass fiber square cloth with a grammage of 130g/m2, the volume of the glass fiber square cloth accounts for 5-13% of the volume of the profile, the other reinforcing material is glass fiber unidirectional yarn, the volume of the glass fiber unidirectional yarn accounts for 55-63% of the volume of the profile 1, the photovoltaic frame manufactured by the pultrusion composite material profile 1 has good corner anti-expansion performance and reverse wind pressure resistance performance, no L-shaped gasket or U-shaped gasket 6 is used for reinforcement, optionally, the glass fiber square cloth is used for reinforcement only on the bottom edge of the profile mounting edge 31 and the inner and outer surfaces of the vertical edge 32, the unidirectional glass fiber yarn is used for reinforcement at other parts, the axial strength and modulus of the profile 1 are ensured, the profile 1 is transversely reinforced, the use of a reinforcing sheet or the L-shaped gasket or the U-shaped gasket 6 can, the cost is reduced.

Sixth specific example, the difference between the first specific example and the second specific example is that the fibers at the junction of the installation edge 31 and the vertical edge 32 of the profile 1 are reinforced by glass fiber expansion yarns, and the thickness of the profile is 1.5-4mm, so that the photovoltaic module frame made of the profile 1 can bear the bending force generated by the reverse wind pressure even if the photovoltaic module frame is not reinforced by a reinforcing sheet or an L-shaped gasket or a U-shaped gasket 6.

The above specific examples are only specific exemplifications of the solution of the invention and are not intended to be all limiting of the invention, and the solution formed by the cross-combination of the above specific examples and the non-inventive solution inspired by the above examples still fall within the scope of protection of the invention.

On the other hand, the invention also discloses a door and window curtain wall system, which comprises: a frame made of any one of the composite material pultruded profiles; or the frame is spliced by any one of the splicing methods of the composite material pultrusion profiles.

Preferably, the plug connector 2 is an angle code or a middle support connector, all or part of the angle code or the middle support connector is made of plastic or fiber reinforced material of the same material as the base material of the composite material pultruded profile, and after the angle code or the middle support connector is plugged with the profile plugging part 12, the corresponding part of the profile plugging part 12 is heated to be welded with the plug connector 2.

By adopting the preferable scheme, the effect is better.

Preferably, the seams of the profile 1 are welded or a reinforcing sheet is added on the back of the seams and welded, and the reinforcing sheet is made of plastic or fiber reinforced material which is the same as or similar to the matrix material of the composite material pultruded profile.

By adopting the preferable scheme, the back of the splicing seam is added with the liner which is made of the plastic or the fiber reinforced material thereof and is the same as or similar to the base material of the composite material pultruded profile 1 for reinforcement welding, thereby realizing smooth welding seam and firm connection.

Preferably, the plug-in connector 2 has barbs or teeth or protrusions or depressions or notches, and the corresponding portion of the profile plug-in connector 12 is deformed by applying an external force to engage with the plug-in connector.

By adopting the preferable scheme, the effect is better.

Preferably, the inserting part is a liner tube 13, and a window is formed in the end part of the section bar body 11;

after the corner connectors or the middle support connectors are inserted into the liner tubes 13, the liner tubes are squeezed by a corner squeezing machine through the windows to be deformed, and the corner connectors or the middle support connectors 13 are clamped.

By adopting the preferable scheme, the group angle of the door and window frame is accurate, firm and efficient. More preferably, the profile is made from a continuous fibre reinforced thermoplastic polymer composite pultruded profile.

Seventhly, as shown in fig. 3, the pultruded composite profile 1 is a frame material of a door and window curtain wall, and any one of the first to sixth specific examples or a combination thereof is adopted for manufacturing the profile 1. The section bar body 12 is positioned at the end of the section bar 1 and is provided with one or more cavities 111, one or more lining elements 13 with cavities 131 are inserted and fixed in the cavities 111 and are tightly matched with the inner surfaces of the cavities 111 through bulges on the outer surfaces of the lining elements, the vertical edges of the section bar body 12 matched with the lining elements 13 are provided with windows 112, and the plug-in elements 2 are corner connectors with barbs.

As shown in figure 4, when framing a curtain wall of a door and window, the corner brace 2 is inserted into the section bar 1 shown in figure 4, then the corner brace 2 with the section bar is inserted into the cavity 131 in the lining piece 13 in the section bar 1 shown in figure 3, so as to realize framing, and then, as shown in figures 6 and 7, the universal corner extruder is used for extruding the lining piece 13 through the window 112, so that the cavity 131 forms a convex point to clamp the barb on the corner brace connector 2, so as to realize firm splicing. According to the foregoing description, the position of the lining element 13 can compensate for the tolerance of the position of the cavity 111 of the profile body 12 through the convex deformation of the outer surface thereof, so that the joint of the two sections of the profile 1 after the corner connector 2 is inserted into the cavity 131 of the lining element 13 is smooth, and the corner connector 2 is firmly connected through the action of the corner extruder, thereby improving the efficiency and quality of framing. The traditional frame assembly of the composite material door and window curtain wall needs to fix the angle code connector 2 by screws, the section bar 1 needs to bear the shearing stress of the screws, the screws are loosened due to low strength at the screw holes of the pultruded composite material, the use safety of the door and window curtain wall is influenced, the screw fastening mode depends on manpower, the quality control is difficult, the efficiency is low, particularly when the cavity 121 of the section bar body 12 has tolerance and/or the straightness of the section bar 1 is not good, the frame assembly joint is large, the appearance is influenced, and even the hardware assembly is influenced, and the invention perfectly solves the long-standing problem which puzzles the field of the composite material door and window curtain wall.

The eighth specific example is the seventh specific example, and is different from the seventh specific example in that the thermoplastic acrylic resin of the second specific example is used as the base resin, the frame splicing is performed by adopting the seventh specific example, the window 112 and the lining piece 13 are omitted, the profile body 12 serving as the insertion part of the profile 1 is extruded under the condition that the profile body is heated by hot air to be softened, and the cavity 111 on the insertion part 12 generates a protrusion to clamp the corner connector 2 inserted therein.

The difference between the ninth embodiment and the eighth embodiment is that the welding rod made of the same material as the matrix resin is used for welding the splice joint, and preferably, the welding rod is ground to be flat after welding.

In the tenth embodiment, a plastic sheet made of the same material as the base resin is welded to each end of the mating part of the two-stage section bar 1, and the plastic sheet is heated and melted by a hot plate, and then the two-stage section bar 1 is quickly inserted into the connector 2, and the ends of the mating part 12 of the two-stage section bar 1 are bonded and welded together.

The specific example eleventh, the other examples are the same as the examples one to ten, and the difference is that the composite material pultruded profile 1 is manufactured by a glass fiber prepreg tape through a pultrusion process, the glass fiber prepreg tape is a semi-cured composite material semi-finished product manufactured by a composite material prepreg process through continuous fiber yarns with a volume ratio of 40-50%, chopped fiber yarns with a volume ratio of 10-20% and matrix resin, or a cured sheet manufactured by the fiber composition and the thermoplastic matrix resin, the prepreg tape with a thickness of 1.2-2.5 mm is cut into a design width, is drawn and preformed into a design shape, and then enters a pultrusion die to be cured and molded into the composite material pultruded profile 1 above a matrix material curing temperature; or cutting the thermoplastic composite material sheet with the thickness of 1.2-2.5 mm into a designed width, drawing and preforming the sheet into a designed shape under a heating condition, and then feeding the sheet into a pultrusion mold to reshape the sheet into the composite material pultruded profile 1 above the melting temperature of the base material; the matrix resin of the prepreg tape is thermosetting resin or thermoplastic resin, and preferably, the matrix resin contains an internal release agent; the glass fiber also comprises a glass fiber fabric with the volume ratio of 2-10%; preferably, the outer surface of the glass fibers also comprises a polyester or nylon surfacing mat.

The composite material pultrusion profile 1 has better transverse performance, can avoid the use of the lining piece 13 and/or a reinforcing sheet, directly manufacture the inserting part 12 on the profile body 11, and has lower cost and simpler and more efficient manufacturing process.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims

1. A quick-connect composite pultruded profile, comprising: the profile body and at least one profile plug-in part, wherein the material of the profile plug-in part can deform under the action of external force,

the section bar inserting part is a lining piece arranged on the section bar body or is one part of the section bar body;

and/or at least one part of the section bar inserting part can deform to form a bulge or a dent or a notch under the action of external force;

the bulges, the depressions or the gaps which are prefabricated before or formed after splicing on the section splicing parts are matched and clamped with the splicing pieces or other parts; or the section bar inserting part is welded with the inserting piece or other components.

2. The composite pultruded profile according to claim 1, wherein said profile body has a slot or cavity for mating with said liner or plug; or the lining piece is provided with a notch or a cavity, and the notch or the cavity on the lining piece is used for being plugged with the plug connector.

3. The composite pultruded profile according to claim 1,

the section bar body is formed by directly compounding a base material and a reinforcing material by adopting a pultrusion process; or the section bar body is formed by firstly preparing a semi-solidified prepreg sheet or a solidified thermoplastic composite sheet from a base material and a reinforcing material and then compounding the semi-solidified prepreg sheet or the solidified thermoplastic composite sheet by adopting a pultrusion process;

the reinforcing material comprises continuous fibers and/or chopped fibers;

the continuous fibers comprise one or more of glass fibers, carbon fibers, basalt fibers, natural fibers and polymer fibers, and the forms of the continuous fibers comprise one or more of fiber bundles, fiber filaments, fiber felts, fiber woven cloth or non-woven cloth, fiber bonding forming products, fiber stitch-knitting products or needle punched fabrics.

4. The composite pultruded profile according to claim 3, wherein the proportion of unidirectional fiber yarn volume in said profile body to the volume of said profile body is not less than 30%;

and/or the volume of the fiber fabric in the profile body accounts for 1-70% of the volume of the profile body;

and/or the volume of the short-cut fibers in the profile body accounts for 2-70% of the volume of the profile body.

5. The composite pultruded profile according to claim 3, wherein said profile plug is part of said profile body, said matrix material being a thermoplastic resin;

the polymeric precursor of the thermoplastic resin matrix comprises: the material comprises one or more of caprolactam monomer, nylon 66 salt, acrylic acid or acrylic ester monomer or oligomer or derivative thereof, methyl methacrylate monomer or oligomer or derivative thereof or copolymer thereof, acrylamide monomer or oligomer or derivative thereof, acrylic acid or acrylic ester or oligomer or derivative thereof or copolymer thereof, styrene, acrylonitrile and reaction precursor of thermoplastic polyurethane.

6. The composite pultruded profile according to claim 5, wherein said reinforcement material is first formed into said prepreg sheet or said thermoplastic composite sheet with a polymeric precursor of said thermoplastic resin matrix and then cured or melted by a pultrusion process to form said composite pultruded profile;

and/or the fiber fabric is arranged on the outer surface or the inner surface or all or part of the inner and outer surfaces of the composite material pultrusion profile;

and/or the outer surface of the prepreg sheet or the thermoplastic composite sheet is made of polyester or nylon surfacing mat and the matrix resin.

7. The composite pultruded profile according to claim 3, wherein the refractive index of the matrix material differs from the refractive index of the reinforcement material by less than 0.2.

8. The composite pultruded profile according to claim 3, wherein all or a part of the outer surface of said profile body is provided with a weatherable surface layer;

9. The composite pultruded profile according to claim 3, wherein the profile body has cantilevers and all or part of the reinforcement material of the root of at least one cantilever is a fiber bulked yarn and/or a fiber fabric.

10. The composite pultruded profile according to any of the claims 1 to 9, wherein the profile body has reinforcements at the openings or at the ends or at stress concentrations or at the impact or at the root of the cantilever arms.

11. The composite pultruded profile according to any of the claims 1 to 9, wherein a plastic sheet is welded to the end of the profile insert, said plastic sheet being melted under heat to weld with other components.

12. The composite pultruded profile according to any of the claims 1 to 9, wherein said liner is prepared from the materials: a combination of one or more of metal, plastic or composites thereof, rubber or blends thereof.

13. The composite pultruded profile according to any of the claims 1 to 9, wherein a lining element connection is provided on said lining element, through which said lining element is in close contact with said profile body or a slot or cavity in the profile body.

14. The composite pultruded profile according to claim 13, wherein said lining element connection portions are barb or tooth or protrusion or indentation or notch structures; or a deformable portion made of a combination of one or more of plastic or a composite thereof, rubber or a blend thereof.

15. The composite pultruded profile according to any of the claims 1 to 9, wherein the profile body is provided with notches or windows at positions corresponding to the positions where the protrusions or depressions or indentations are to be made on the liner, and the protrusions or depressions or indentations are formed by applying an external force to the liner through the notches or windows.

16. The splicing method of the composite material pultrusion profile is characterized by comprising the following steps: inserting a plug connector into the profile plug-in part of the composite material pultruded profile according to any one of claims 1 to 15, wherein a protrusion or a recess or a notch is pre-formed on the profile plug-in part, so that the profile plug-in part is deformed and/or the plug connector is deformed, thereby realizing the clamping connection of the profile plug-in part and the plug connector.

17. The splicing method of the composite material pultrusion profile is characterized by comprising the following steps: inserting a plug connector into the profile plug-in part of the composite material pultrusion profile as claimed in any one of claims 1 to 15, applying an external force to the profile plug-in part, and forming a bulge or a depression or a notch on the profile plug-in part to deform the profile plug-in part and/or the plug connector so as to realize the clamping connection of the profile plug-in part and the plug connector.

18. The splicing method of the composite material pultrusion profile is characterized by comprising the following steps: heating the profile plug of the composite pultruded profile of any of claims 1 to 15 to melt at least a portion of the profile plug to weld with the plug and/or another component; or softening at least one part of the section bar inserting part, and applying external force to the section bar inserting part to deform the section bar inserting part and/or deform the plug connector so as to realize the clamping connection of the section bar inserting part and the plug connector.

19. The splicing method of the composite material pultrusion profile is characterized by further comprising the following steps of: and welding a plastic sheet to the end of the section bar inserting part, heating the plastic sheet to melt the plastic sheet, inserting the plastic sheet into the inserting part and/or attaching another part and/or another section of section bar, and attaching and welding the section bar inserting part with the other part and/or another section of section bar.

20. A photovoltaic module system, comprising: a frame and/or support made from the composite pultruded profile according to any of the claims 1 to 15; and/or a frame and/or a support joined by the method of joining composite pultruded profiles according to any of the claims 16-19.

21. The photovoltaic module system according to claim 20, wherein the frame is provided with a profile mounting edge in close contact with the photovoltaic support, and a reinforcement is provided at one or more of a bolt opening, an outer periphery of the opening, a root of the profile mounting edge, and an outer periphery of the root of the profile mounting edge connected to the support.

22. The photovoltaic assembly system according to claim 21, wherein the profile mounting edge is connected to the photovoltaic support using a bolt, an L-shaped or U-shaped gasket is mounted between a nut on the bolt and the profile mounting edge, and the L-shaped or U-shaped gasket has a width greater than the diameter of the screw hole;

the vertical edge of the L-shaped gasket or the U-shaped gasket is connected with the vertical edge of the frame, and the horizontal edge of the L-shaped gasket or the U-shaped gasket is connected with the section bar mounting edge and the photovoltaic support through the bolt and the nut respectively.

23. The photovoltaic assembly system according to claim 22, wherein corners of the vertical side and the horizontal side of the L-shaped gasket or the U-shaped gasket are spaced from the mounting surface of the profile mounting side or are mounted with plastic or rubber gaskets.

24. The photovoltaic assembly system according to any of claims 20 to 23, wherein the frame is provided with cavities having an average wall thickness of less than 2.5 mm.

25. Door and window curtain system, its characterized in that includes: a frame made from the composite pultruded profile of any one of claims 1 to 15;

and/or a frame spliced by the method of splicing composite pultruded profiles according to any of the claims 16-19.