CN113949339A - Pultrusion profile for solar cell panel frame and solar cell panel frame - Google Patents
Pultrusion profile for solar cell panel frame and solar cell panel frame Download PDFInfo
- Publication number
- CN113949339A CN113949339A CN202111347578.0A CN202111347578A CN113949339A CN 113949339 A CN113949339 A CN 113949339A CN 202111347578 A CN202111347578 A CN 202111347578A CN 113949339 A CN113949339 A CN 113949339A
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- Prior art keywords
- inner joint
- glass fiber
- solar cell
- frame
- panel frame
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- Pending
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- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000012779 reinforcing material Substances 0.000 claims abstract description 12
- 239000002131 composite material Substances 0.000 claims description 20
- 239000000565 sealant Substances 0.000 claims description 9
- 229920000728 polyester Polymers 0.000 claims description 5
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 210000002445 nipple Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 10
- 229910000838 Al alloy Inorganic materials 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S30/00—Structural details of PV modules other than those related to light conversion
- H02S30/10—Frame structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
A pultrusion profile for a solar panel frame and the solar panel frame are disclosed, wherein the profile comprises a reinforcing material and a matrix resin, and the reinforcing material comprises a continuous glass fiber yarn bundle and a transverse reinforcing layer; the matrix resin soaks the reinforcing material in the mould; the transverse reinforcing layer is embedded in the middle of the continuous glass fiber yarn bundle or coated outside the continuous glass fiber yarn bundle; the lower part of the section bar is provided with an inner joint connecting groove with an opening at the lower end, the opening is a mounting bolt passing groove, two side edges of the inner joint connecting groove are provided with stressed beams, and the stressed beam at one side extends upwards and bends towards the stressed beam at the other side to form an assembly reference surface. The bottom of the inner joint connecting groove is of an open structure, a die core die can be omitted during production, the qualification rate of the frame is improved, and the cost is reduced; the flange is eliminated, the weight is reduced, and the stress is more reasonable; an included angle is formed between the stress beams, which is favorable for the firmness of the frame assembly.
Description
Technical Field
The invention belongs to the field of solar equipment, and particularly relates to a composite material pultrusion profile for a solar cell panel frame and a solar cell panel frame manufactured by the composite material pultrusion profile.
Background
The frame of the existing solar cell panel is basically made of an aluminum alloy section, and the aluminum alloy section is formed by electrolytic aluminum through extrusion and a die. In the production process of the aluminum alloy section, a large amount of energy is consumed, and carbon dioxide which is dozens of times of the weight of the aluminum alloy section is discharged: according to related calculation, 14622kw of alternating current is required for producing 1 ton of electrolytic aluminum, and the calculation by using thermal power is equivalent to 9.6 tons of standard coal and 21.8 tons of carbon dioxide emission. Therefore, the production of the solar aluminum alloy frame is not energy-saving and environment-friendly. In recent years, the price of aluminum alloy is frequently innovative, the running cost of solar power generation is increased from the side, and the popularization of solar energy is hindered.
In order to solve the scarcity of land, the solar cell panel is installed in a corrosive environment of saline-alkali soil, coastal mudflats, shallow sea and islands, the aluminum alloy frame hardly reaches the service life of more than 20 years, and parts need to be maintained, maintained and replaced continuously, so that the solar energy operation cost is high, and the power generation cost is increased.
Aiming at the defects of the aluminum alloy solar panel frame (high production energy consumption, high cost and easy corrosion of saline-alkali regions), the solar panel frame made of composite material pultrusion profiles is used, and most of the solar panel frames in the market are designed according to the section optimization of aluminum alloy (see fig. 1). The frame of the composite solar panel has the following problems:
1. as shown in fig. 1 and 2, there is a closed inner joint connecting cavity 101. If a closed inner joint cavity needs to be made, a core mold 103 is needed in a mold during production, the gap between the core mold 103 and an outer mold 104 of a frame is the thickness of a product, but the core mold 103 is suspended in the center of the outer mold, a product gap 105 between the core mold 103 and the outer mold 104 needs to pass through a resin matrix and continuous glass fibers, and the outer mold 104 and the core mold 103 need to bear high extrusion force through thermal expansion, so that the core mold is easy to shift, the product has thickness deviation, the mold blocking accident is caused, long-time continuous production cannot be realized, the yield cannot be increased, the cost of the frame is high, and the mold cannot be suitable for batch production.
2. As shown in fig. 1 and 3, the flange 102 connected with the solar panel bracket 108 is provided, and the purpose of punching the frame flange is to fixedly connect the frame flange with the solar panel bracket through bolts 106, so as to resist the upward lifting force of wind load, and the defects are as follows:
(1) the mounting bolt holes of the flange are deviated from the center of gravity of the solar cell panel frame 107, a lever effect is formed under the condition of wind load, and the mounting flange is easy to damage and lose efficacy.
(2) The flange mounting hole is separated from the vertical face reinforcing rib, so that under the condition of wind load, the periphery of the flange hole bears larger load, and the flange is easy to damage.
Disclosure of Invention
The invention provides a composite material pultrusion section for a solar cell panel frame and a solar cell panel frame manufactured by the composite material pultrusion section, and aims to solve the technical problems of low yield, high cost, easiness in breakage and the like in the prior art.
The technical scheme of the invention is as follows:
a composite material pultrusion profile for a solar panel frame is characterized by comprising a reinforcing material and matrix resin, wherein the reinforcing material comprises continuous glass fiber yarn bundles and a transverse reinforcing layer, and the transverse reinforcing layer is one or more of a glass fiber felt, a glass fiber cloth, a composite felt and a polyester fiber felt; the matrix resin is one of polyester unsaturated resin, vinyl resin, epoxy resin, methyl methacrylate and nylon monomer; the matrix resin soaks the reinforcing material in the mould; the transverse reinforcing layer is embedded in the middle of the continuous glass fiber yarn bundle or coated outside the continuous glass fiber yarn bundle; the lower part of the section bar is an approximately rectangular inner joint connecting groove with an opening at the lower end, the opening is a mounting bolt passing groove, two side edges of the inner joint connecting groove are stressed beams, one stressed beam extends upwards and bends towards the direction of the stressed beam on the other side to form an assembly reference surface, the surface above the inner joint connecting groove is a solar mounting backboard contact surface, and a bolt mounting surface is arranged between the mounting bolt passing groove and the stressed beam.
Preferably, the upper surface of the assembly reference surface is a plane and the width is 0.5mm to 15 mm.
Preferably, the upper parts of the two stress beams are inclined inwards to form an included angle of 0-5 degrees (excluding 0 degrees).
Preferably, both of said bolt mounting faces are inclined inwardly to form an included angle of 175 ° -180 ° (excluding 180 °).
Preferably, the front end of the assembly reference surface is provided with a downward bent sealant overflow-preventing surface.
Further preferably, the total width of the assembly reference surface and the sealant overflow prevention surface is 3-18 mm.
Preferably, the height from the upper surface of the assembly datum plane to the bottom surface of the inner joint connecting groove is 25-50mm, the thickness of the stress beam is 1.5-5mm, the width of the mounting bolt passing through the groove is 4-15mm, and the width of the contact surface of the solar cell panel mounting backboard is 8-40 mm.
The solar panel frame is characterized in that the sections are connected into a rectangular frame body through inner joints, and the assembly reference surfaces face the inside of the rectangular frame body.
Preferably, the inner joint comprises two corner connectors which are perpendicular to each other, the two corner connectors are respectively inserted into the inner joint connecting grooves of the two profiles to form interference fit, two ends of the two profiles are cut at an angle of 45 degrees and are attached to each other at the joint of the two corner connectors.
The invention has the following technical effects:
the invention realizes the following effects through the design of the bolt passing groove:
1. the frame is of an open structure through the groove by the bolt, a core mould of a mould can be cancelled during production, the core mould is replaced by an insert and is fixed with the outer mould, the production obstacle of core mould displacement is solved, the solar cell panel frame with stable thickness is obtained, the mould blocking accident caused by core mould displacement is solved, the continuous production difficulty of the solar cell panel frame is greatly reduced, the qualification rate of the frame is improved, and the cost of the frame is reduced;
2. the installation flange of the solar cell panel frame is eliminated, so that the unit weight of the solar cell panel frame is reduced, the utilization rate of materials is improved, and the cost of the solar cell panel frame profile is reduced;
3. the bolt is arranged between the two stress beams through the groove, and compared with the design mode of an installation flange, the bolt is more reasonable in stress and safer to use;
4. compared with the design mode of adopting a mounting flange, the design mode of the bolt through the groove cancels the punching process, reduces the cost and can avoid quality accidents caused by punching deviation.
Furthermore, the invention also has the following advantages:
1. the design has the assembly reference surface, is favorable to benchmark discernment and location in the automated production, improves production efficiency and assembly quality, deals with mass production.
2. The stress beams form an included angle, the included angle is in interference fit with the inner joint, the inner joint is clamped, the firmness of frame assembly is facilitated, after the inner joint corner brace is installed, the inner joint corner brace is clamped, and the corner brace is not easy to loosen.
3. The composite material solar cell panel frame is low in production energy consumption, free of exhaust emission, excellent in acid and alkali salt resistance and capable of guaranteeing the service life of the composite material frame.
4. The width of the contact surface of the back plate of the solar cell panel is close to the total width of the sectional material, so that the solar cell panel spans the whole contact surface, and the two stress beams can be stressed more uniformly.
5. The width of the contact surface of the back plate of the solar cell panel is wider than that of the glue overflow port, the area is large, and the downward load is borne, such as snow load.
6. The glue overflow port is simple in design, the difficulty of the production process is reduced, continuous production is facilitated, and the production qualified rate is improved.
In addition, the strength of the composite material solar cell panel frame section is mainly determined by the reinforced material glass fiber, the composite material solar cell panel frame is made of an anisotropic material, the free design is carried out according to the stress direction and the stress magnitude of the composite material solar cell panel frame, the mechanical property requirement of the solar cell frame under the use condition is met, and the maximum application efficiency of the material is achieved.
Drawings
FIG. 1 is a schematic view of a prior art structure;
FIG. 2 is a schematic of prior art problem 1;
FIG. 3 is a prior art problem 2 schematic;
FIG. 4 is a schematic cross-sectional view of example 1 of the present invention;
FIG. 5 is a schematic cross-sectional view of example 2 of the present invention;
FIG. 6 is a schematic view of example 3 of the present invention;
fig. 7 is an assembly view of a solar cell panel using embodiment 3 of the present invention.
Reference numerals:
1-assembling a datum plane; 2, preventing the overflow surface of the sealant; 3-solar panel back plate contact surface; 4-a stressed beam; 5, mounting a bolt stress surface; 6-inner joint contact surface; 7-mounting the bolt through the slot; 8-inner joint; 10-rectangular frame body, 11-solar panel, 12-bolt, 13-cushion block, 14-nut, 15-beam, 16-column, 17-inner joint connecting groove, 18-glass fiber, 19-transverse reinforcing layer and 20-matrix resin.
Detailed Description
For a better understanding of the present invention, the present invention is further explained below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 4, the composite material pultruded profile for the solar panel frame of this embodiment comprises a reinforcing material and a matrix resin 20, wherein the reinforcing material comprises continuous yarn bundles of glass fibers 18 and a transverse reinforcing layer 19, the glass fibers 18 are dispersed in the matrix resin 20, the matrix resin of this embodiment adopts MMA, and the transverse reinforcing layer 19 is located inside the matrix resin 20. The transverse reinforcing layer 19 is arranged in the section bar, the rest part of the section bar is a yarn bundle of matrix resin 20 and continuous glass fibers 18, the yarn bundle of the continuous glass fibers 28 is used for providing the stress requirement in the length direction of the section bar, and the middle transverse reinforcing layer 19 is used for providing the transverse strength of the section bar and ensuring the transverse strength when the solar cell panel frame section bar is connected and fixed by bolts.
The lower part of the section is provided with a rectangular inner joint connecting groove 17 with an opening at the lower end, the opening is provided with a mounting bolt passing groove 7, two side edges of the inner joint connecting groove are provided with stress beams 4, the stress beam 4 on one side extends upwards and bends towards the stress beam on the other side to form an assembly reference surface 1, and the upper surface of the inner joint connecting groove is provided with a solar mounting backboard contact surface 3. The assembly reference surface 1 is a plane and has a width of 10 mm. The two stress beams 4 form an angle of about 2 degrees. The bolt mounting surfaces 5 of the upper surfaces of both sides of the mounting bolt passing groove 7 form an angle of about 2 degrees. The front end of the assembly reference surface 1 is provided with a downward bent sealant overflow-preventing surface 2. The total length of the assembly datum plane and the sealant overflow preventing surface is 15 mm. The height from the top surface of the assembly reference surface 1 to the bottom surface of the inner joint connecting groove is 35mm, the thickness of the stress beam 4 is 3mm, the width of the mounting bolt passing groove 7 is 8mm, and the width of the solar mounting backboard contact surface 3 is 30 mm.
Specifically, the assembly reference surface 1 serves as a frame assembly reference, and the identified identification surface is automatically assembled. And the stress beam 4 is used for bearing the loads of the solar cell panel such as dead weight, accumulated snow, wind load and the like. And the stress surface 5 of the mounting bolt bears the fastening force of the bolt to fix the frame and the cross beam of the solar cell panel. The mounting bolts pass through the slots 7 and are used for connecting the solar cell panel frame with the cross beam on which the solar cell panel frame is mounted through the stressed bolts. The anti-sealant overflow surface 2 seals the solar cell panel and the frame, is in a shape with a large lower part and a small upper part, and prevents overflow when glue is applied in assembly. The solar cell panel mounting back plate contact surface 3 contacts the solar cell panel back plate, and the solar cell panel mounting back plate contact surface is connected with the solar cell panel through gluing to form a whole. The inner joint contact surface 6 is in interference fit with the inner joint and is connected into a whole.
The matrix resin of the section can also adopt any one of unsaturated polyester, epoxy, vinyl and polyurethane, the reinforcing material of the section is glass fiber, for example CHR glass fiber (corrosion-resistant high-strength glass fiber) of Chongqing international composite material can be adopted, the transverse reinforcing layer adopts one or more of glass fiber felt, glass fiber cloth, composite felt and polyester fiber felt, and the solar frame section is obtained by pultrusion and fixed-length cutting.
Example 2
As shown in fig. 5, this embodiment is different from embodiment 1 in that a transverse reinforcing layer 19 is coated outside the continuous glass fiber yarn bundle 18, provides transverse strength of the profile, and forms a surface protective layer.
The results of the performance tests of examples 1 and 2 using different resins are shown below:
from the above data, the strength of each embodiment is greatly improved.
Example 3
This example is a solar panel frame made of the composite material pultruded profiles of examples 1 or 2, which are connected by inner joints 8 into a rectangular frame 10, as shown in fig. 6, and the sealant overflow prevention surface 2 faces the inside of the rectangular frame. Two mutually perpendicular angle codes of the inner joint 8 respectively form interference fit with the inner joint contact surfaces 6 of the inner joint connecting grooves of the two sectional materials, two ends of the two sectional materials are cut at an angle of 45 degrees and are mutually attached in the middle of the inner joint.
As shown in fig. 7, the inner joint connecting groove 17 of the solar energy frame and the cross beam 15 are connected through the bolt 12, the nut 14 is arranged on one side of the cross beam 15, the cushion blocks 13 are respectively arranged between the nut 14 and the surface of the cross beam 15 and between the head of the bolt 12 and the stress surface 5 of the mounting bolt, and the cross beam 15 is arranged on the upright post 16.
While the present invention has been described with reference to the accompanying drawings, the present invention is not limited to the above embodiments, the above embodiments are illustrative only and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and modifications that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A composite material pultrusion profile for a solar panel frame is characterized by comprising a reinforcing material and matrix resin, wherein the reinforcing material comprises continuous glass fiber yarn bundles and a transverse reinforcing layer, and the transverse reinforcing layer is one or more of a glass fiber felt, a glass fiber cloth, a composite felt and a polyester fiber felt; the matrix resin is one of polyester unsaturated resin, vinyl resin, epoxy resin, methyl methacrylate and nylon monomer; the matrix resin soaks the reinforcing material in the mould; the transverse reinforcing layer is embedded in the middle of the continuous glass fiber yarn bundle or coated outside the continuous glass fiber yarn bundle; the lower part of the section bar is an approximately rectangular inner joint connecting groove with an opening at the lower end, the opening is a mounting bolt passing groove, two side edges of the inner joint connecting groove are stressed beams, one stressed beam extends upwards and bends towards the direction of the stressed beam on the other side to form an assembly reference surface, the surface above the inner joint connecting groove is a solar mounting backboard contact surface, and a bolt mounting surface is arranged between the mounting bolt passing groove and the stressed beam.
2. Profile according to claim 1, characterised in that the upper surface of the fitting reference plane is plane and has a width of 0.5mm to 15 mm.
3. The section bar according to claim 1, wherein the upper parts of the two stressed beams are inclined inwards to form an included angle of 0-5 degrees.
4. Profile according to claim 1, characterized in that the two bolt mounting faces are inclined inwards to 175 °
-an angle of 180 °.
5. The profile according to claim 1, wherein the front end of the fitting reference surface has a sealant overflow preventing surface bent downward.
6. The profile according to claim 5, wherein the total width of the assembly reference surface and the sealant overflow preventing surface is 3-18 mm.
7. The profile according to claim 1, wherein the height from the upper surface of the assembly datum plane to the bottom surface of the nipple connecting groove is 25-50mm, the thickness of the stress beam is 1.5-5mm, the width of the mounting bolt passing groove is 4-15mm, and the width of the solar panel mounting back plate contact surface is 8-40 mm.
8. The solar panel frame made of composite material pultruded profiles for solar frames according to any of the claims 1 to 7, wherein said profiles are connected by inner joints into a rectangular frame body, and said assembly datum plane faces the inside of said rectangular frame body.
9. The solar energy frame as claimed in claim 8, wherein the inner joint comprises two corner connectors perpendicular to each other, the two corner connectors are inserted into the inner joint connecting grooves of the two profiles to form an interference fit, the two ends of the two profiles are cut at an angle of 45 ° and are attached to each other at the connection of the two corner connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347578.0A CN113949339A (en) | 2021-11-15 | 2021-11-15 | Pultrusion profile for solar cell panel frame and solar cell panel frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347578.0A CN113949339A (en) | 2021-11-15 | 2021-11-15 | Pultrusion profile for solar cell panel frame and solar cell panel frame |
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| Publication Number | Publication Date |
|---|---|
| CN113949339A true CN113949339A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111347578.0A Pending CN113949339A (en) | 2021-11-15 | 2021-11-15 | Pultrusion profile for solar cell panel frame and solar cell panel frame |
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| CN (1) | CN113949339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348200A (en) * | 2022-01-24 | 2022-04-15 | 重庆国际复合材料股份有限公司 | High life's photovoltaic board on water floats installation basis and photovoltaic system |
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2021
- 2021-11-15 CN CN202111347578.0A patent/CN113949339A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348200A (en) * | 2022-01-24 | 2022-04-15 | 重庆国际复合材料股份有限公司 | High life's photovoltaic board on water floats installation basis and photovoltaic system |
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