CN114300562B - Edge sealing method for large-size double-glass assembly - Google Patents
Edge sealing method for large-size double-glass assembly Download PDFInfo
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- CN114300562B CN114300562B CN202111651557.8A CN202111651557A CN114300562B CN 114300562 B CN114300562 B CN 114300562B CN 202111651557 A CN202111651557 A CN 202111651557A CN 114300562 B CN114300562 B CN 114300562B
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- 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
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Abstract
The invention discloses a large-size double-glass assembly edge sealing method, which comprises the following steps: sequentially laminating and paving multiple layers of materials forming the double-glass assembly to form a laminated assembly; the adhesive tape is adhered along the edge of the laminated assembly, the adhesive tape is semi-adhesive edge sealing adhesive along the outer edge part or all of the laminated assembly, the adhesive part of the semi-adhesive edge sealing adhesive is connected with the laminated assembly, and the non-adhesive part of the semi-adhesive edge sealing adhesive is flatly paved outside the laminated assembly; laminating and cooling the laminated assembly; and taking out the finished product of the assembly. According to the invention, the metal frame is canceled, and the edges of the assembly are stuck by the semi-adhesive edge sealing adhesive completely or partially, so that not only can redundant EVA adhesive overflow, but also the tetrafluoro cloth and the EVA adhesive can be isolated at two sides of the semi-adhesive edge sealing adhesive, thereby effectively avoiding the adhesion of the tetrafluoro cloth and greatly improving the yield.
Description
Technical Field
The invention relates to the technical field of photovoltaic modules, in particular to a large-size double-glass module edge sealing method.
Background
The large-size double-glass assembly is a photovoltaic power generation device formed by laminating battery strings, EVA (ethylene-vinyl acetate) adhesive and glass, after entering a material waiting area of a laminating machine, each two adjacent assemblies are paved with tetrafluoro cloth, then lamination is carried out, the tetrafluoro cloth is taken away after the lamination is finished, in the lamination process, the influence of the pressure on the assemblies by the pressure on the periphery of the assemblies is larger, the pressure is larger, the reliability is better, in addition, the battery strings are contained in the assemblies, and in order to avoid displacement of the battery strings caused by peristaltic movement of the EVA adhesive during lamination, the overflow position is required to be reserved at the edges of the assemblies.
In the early lamination technology, a metal frame is generally used for surrounding the assembly, the metal frame can block overflowed glue and can meet the lamination requirement at the time, but along with the development of the lamination technology, the metal frame blocks the pressure of a laminating machine on the periphery of the assembly, the higher performance requirement of the assembly cannot be met, and the metal frame collides with the assembly to damage the assembly, so that under the new lamination technology, a technician cancels the setting of the metal frame, adopts a partial full edge sealing method to seal the edge of the assembly partially, the reliability of the assembly is improved, but because the unsealed area is completely opened, the lamination glue overflows to be adhered with tetrafluorocloth, the normal discharging of the assembly is affected, and even the assembly is broken.
Therefore, a double-glass assembly processing technology capable of ensuring the reliability of the assembly and avoiding lamination glue overflow and adhesion of the tetrafluoro cloth is required to be designed.
Disclosure of Invention
The invention provides a large-size double-glass assembly edge sealing method for solving the problems that lamination glue overflow and polytetrafluoroethylene cloth adhesion exist in a large-size double-glass assembly in the prior art, normal discharging of the assembly is affected, and even the assembly is broken.
The technical scheme adopted for solving the technical problems is as follows: a large-size double-glass assembly edge sealing method comprises the following steps: sequentially laminating and paving multiple layers of materials forming the double-glass assembly to form a laminated assembly; the adhesive tape is adhered along the edge of the laminated assembly, the adhesive tape is semi-adhesive edge sealing adhesive along the outer edge part or all of the laminated assembly, the adhesive part of the semi-adhesive edge sealing adhesive is connected with the laminated assembly, and the non-adhesive part of the semi-adhesive edge sealing adhesive is flatly paved outside the laminated assembly; laminating and cooling the laminated assembly; and taking out the finished product of the assembly.
Further, the multilayer material comprises front glass, an upper EVA adhesive film, a battery string, a lower EVA adhesive film and back glass which are paved in sequence.
Further, the laminated assembly is of a rectangular structure.
Further, the adhesive tape comprises a full-sealing adhesive tape and a half-adhesive edge sealing adhesive, wherein the full-sealing adhesive tape wraps the short side of the laminated assembly, and the half-adhesive edge sealing adhesive is adhered to the long side of the laminated assembly.
Further, the width of the semi-adhesive edge sealing adhesive is 20-50 mm.
Further, the width of the adhesive part in the semi-adhesive edge sealing adhesive accounts for 1/4 to 1/2 of the whole width.
Further, the semi-adhesive edge sealing adhesive is adhered to the laminated assembly by edge sealing equipment.
Further, banding equipment includes support and rotates adhesive tape spool, first compression roller and the second compression roller of connecting on the support, and half viscidity banding glue twines on the adhesive tape spool, first compression roller and second compression roller are arranged along half viscidity banding glue's length direction.
Further, the first press roller and the second press roller are respectively connected with the air cylinder, the second press roller is positioned at the rear of the first press roller along the pasting direction of the semi-viscous edge sealing adhesive, and the pressure of the second press roller is larger than that of the first press roller.
Further, semi-adhesive edge sealing glue is adhered to the periphery of the laminated assembly.
The beneficial effects of the invention are as follows:
(1) According to the large-size double-glass assembly edge sealing method, a metal frame is omitted, and the edges of the assembly are glued by the semi-adhesive edge sealing glue wholly or partially, and the semi-adhesive edge sealing glue is provided with the non-adhesive part which is paved outside the laminated assembly, so that not only can redundant EVA glue overflow, but also tetrafluoro cloth and EVA glue can be isolated on two sides of the semi-adhesive edge sealing glue, the adhesion of the tetrafluoro cloth is effectively avoided, and the yield is greatly improved.
(2) According to the large-size double-glass assembly edge sealing method, the total width of the semi-adhesive edge sealing adhesive and the proportion of the adhesive part to the non-adhesive part are reasonably controlled, so that the overflow EVA adhesive can be completely positioned below the non-adhesive part of the semi-adhesive edge sealing adhesive while the semi-adhesive edge sealing adhesive is prevented from falling off, and the phenomenon of adhesive overflow is effectively avoided.
(3) The semi-adhesive edge sealing adhesive is adhered by the edge sealing equipment, the adhesive tape is paved and compacted by utilizing the cooperation of the two pressing rollers, and the adhesive tape paving machine is simple in structure and high in working efficiency.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of a specific embodiment of a large-size dual-glass assembly edge sealing method according to the present invention;
FIG. 2 is a schematic illustration of adjacent two laminate assemblies in a laminate standby zone;
FIG. 3 is a schematic view of a banding apparatus in accordance with the present invention;
FIG. 4 is a schematic view of the positioning of the laminate assembly on the taping station in accordance with the present invention;
fig. 5 is a schematic view of a track of the tape-casting using the edge sealing apparatus of the present invention (the direction indicated by the arrow is the edge sealing direction).
In the figure, 1, a laminated assembly, 2, a semi-adhesive edge sealing adhesive, 201, an adhesive part, 202, a non-adhesive part, 3, a taping table, 4, a positioning structure, 5, an edge sealing device, 501, a horizontal frame, 502, a vertical frame, 503, a tape reel, 504, a first press roll, 505, a second press roll,
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A large-size double-glass assembly edge sealing method comprises the following steps:
the multi-layer materials composing the dual-glass assembly are sequentially layered and laid to form a layered assembly 1. The multilayer material comprises front glass, an upper EVA adhesive film, a battery string, a lower EVA adhesive film and back glass which are paved in sequence.
The edge sealing is carried out, the adhesive tape is adhered along the edge of the laminated assembly 1, the adhesive tape is the semi-adhesive edge sealing adhesive 2 along the outer edge part or all of the laminated assembly 1, the adhesive part 201 of the semi-adhesive edge sealing adhesive 2 is connected with the laminated assembly 1, the non-adhesive part 202 of the semi-adhesive edge sealing adhesive 2 is paved outside the laminated assembly 1, the non-adhesive part 202 extends to the periphery of the laminated assembly 1, the semi-adhesive edge sealing adhesive 2 is adhered to the upper surface of the laminated assembly 1, when the adhesive overflow phenomenon occurs, the non-adhesive part 202 can be shielded above the overflow adhesive, so that the tetrafluorocloth above the laminated assembly 1 is isolated from the overflow adhesive, the structural stability of the battery string inside the assembly is effectively ensured, the pressure around the laminated assembly 1 is also improved during lamination, and the reliability of the finished product of the double-glass assembly is ensured.
Laminating and cooling the laminated assemblies 1, namely placing a plurality of laminated assemblies 1 in a material waiting area of a laminating machine, then laying tetrafluoro cloth between every two adjacent laminated assemblies 1, laminating, taking away the tetrafluoro cloth after the lamination is finished, and taking out the laminated assemblies after cooling. And (5) removing the adhesive tape.
The order of these steps is not fixed and the order may be interchanged or interleaved under certain conditions.
Example 1
A large-size double-glass assembly edge sealing method comprises the following steps:
s1: and sequentially paving the front glass, the upper EVA adhesive film, the battery string, the lower EVA adhesive film and the back glass from top to bottom to form a rectangular laminated assembly 1.
S2: the laminated assembly 1 is firstly transferred to the taping workbench 3, the taping workbench 3 is detachably provided with a plurality of positioning structures 4, the laminated assembly 1 is positioned (as shown in fig. 4), the positioning structures 4 are removed after the positioning is finished, then the adhesive tape is adhered along the edge of the laminated assembly 1 formed in the step S1, wherein the two short sides of the laminated assembly 1 are full-sealing adhesive tapes, namely the short sides are completely wrapped, no glue overflow exists, the two long sides of the laminated assembly 1 are half-adhesive edge sealing adhesive 2, the adhesive part 201 of the half-adhesive edge sealing adhesive 2 is connected with the laminated assembly 1, and the non-adhesive part 202 of the half-adhesive edge sealing adhesive 2 is flatly paved outside the laminated assembly 1.
In the laminating machine, the long sides of the two laminated assemblies 1 are adjacent (as shown in fig. 2), so that the width of the semi-adhesive edge sealing adhesive 2 cannot be too large to avoid glue overflow mixing, meanwhile, it is also required to ensure that the semi-adhesive edge sealing adhesive 2 cannot fall off in the laminating process, and the non-adhesive portion 202 can completely shield the glue overflow, so that the widths of the adhesive portion 201 and the non-adhesive portion 202 cannot be too small. The width of the semi-adhesive edge sealing adhesive 2 is preferably 20-50 mm, and the width of the adhesive part 201 in the semi-adhesive edge sealing adhesive 2 accounts for 1/4-1/2 of the whole width. The width of the semi-adhesive edge sealing adhesive 2 in this embodiment is 50mm, wherein the width of the adhesive portion 201 is 1/2 of the overall width.
S3: placing the laminated assemblies 1 with the adhesive tapes in the step S2 in a material waiting area of a laminating machine, then laying a piece of tetrafluoro cloth between every two adjacent laminated assemblies 1, positioning a semi-adhesive edge sealing adhesive 2 right below the tetrafluoro cloth, then laminating, taking away the tetrafluoro cloth after the lamination is finished, and taking out the assembly after cooling.
S4: and taking out the finished product of the assembly, and removing the adhesive tape.
Example two
The difference between this embodiment and the first embodiment is that in step S2, the semi-adhesive edge sealing adhesive 2 (shown in fig. 1) is adhered to each of the four sides of the laminated assembly 1. Since the flash is located below the outer non-adhesive portion 202, the semi-adhesive edge seal 2 acts to seal the flash with the laminate assembly 1 and also serves as a structural stability.
Example III
Based on the first embodiment and the second embodiment, the semi-adhesive edge sealing adhesive 2 is adhered to the laminated assembly 1 by using the edge sealing device 5, and the specific structure of the edge sealing device 5 is as follows:
as shown in fig. 3, the semi-adhesive sealing tape comprises a bracket, a tape reel 503, a first pressing roller 504 and a second pressing roller 505, wherein the tape reel 503, the first pressing roller 504 and the second pressing roller 505 are rotatably connected to the bracket, the semi-adhesive sealing tape 2 is wound on the tape reel 503, and the first pressing roller 504 and the second pressing roller 505 are arranged along the length direction of the semi-adhesive sealing tape 2. The support includes fixed connection's horizontal frame 501 and vertical frame 502, sticky tape spool 503 rotates the top of connecting at vertical frame 502, first compression roller 504 and second compression roller 505 rotate along the fore-and-aft direction to be connected on horizontal frame 501, the direction of movement of banding equipment 5 is the place ahead when supposing to paste, then first compression roller 504 is located the place ahead of second compression roller 505, the tip of semi-adhesive banding adhesive 2 extends to the front side of first compression roller 504 downwards from the rear side of sticky tape spool 503, the below of first compression roller 504 is rewound, and the tiling is in first compression roller 504 and second compression roller 505 bottom, first compression roller 504 has the effect of location and compress tightly, the second compression roller 505 is used for compressing tightly once more, the surface that first compression roller 504 and second compression roller 505 contacted with semi-adhesive banding adhesive 2 is cylindrical surface, first compression roller 504 can make semi-adhesive banding adhesive 2 lay perpendicularly on glass surface.
Preferably, the first pressing roller 504 and the second pressing roller 505 are respectively connected with an air cylinder, the distance between the first pressing roller 504 and the second pressing roller 505 and the laminated assembly 1 is adjusted by the air cylinder, so that the pressure is changed, the pressure adjustment of the pressing rollers is used in the existing film machine or the winding drum machine, the structure is not specifically described here, the second pressing roller 505 is positioned behind the first pressing roller 504 along the pasting direction of the semi-adhesive edge sealing adhesive 2, and the pressure of the second pressing roller 505 is larger than that of the first pressing roller 504. Fig. 5 shows a schematic view of the taping direction of the taping device 5.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. The edge sealing method of the large-size double-glass assembly is characterized by comprising the following steps of:
sequentially laminating and paving multiple layers of materials forming the double-glass assembly to form a laminated assembly (1);
the adhesive tape is stuck along the edge of the laminated assembly (1), so that overflowed EVA adhesive can be completely located below a non-adhesive part of the semi-adhesive edge sealing adhesive, the phenomenon of overflowing adhesive is effectively avoided, the adhesive tape is the semi-adhesive edge sealing adhesive (2) along the outer edge part or all of the laminated assembly (1), the adhesive part (201) of the semi-adhesive edge sealing adhesive (2) is connected with the laminated assembly (1), and the non-adhesive part (202) of the semi-adhesive edge sealing adhesive (2) is flatly paved outside the laminated assembly (1);
laminating and cooling the laminate assembly (1); and taking out the finished product of the assembly.
2. The method for sealing a large-size double-glass assembly according to claim 1, wherein: the multilayer material comprises front glass, an upper EVA adhesive film, a battery string, a lower EVA adhesive film and back glass which are paved in sequence.
3. The method for sealing a large-size double-glass assembly according to claim 1, wherein: the laminated assembly (1) is of a rectangular structure.
4. A large-size double-glass assembly edge sealing method according to claim 3, wherein: the adhesive tape comprises a full-sealing adhesive tape and a half-adhesive edge sealing adhesive (2), wherein the full-sealing adhesive tape wraps the short side of the laminated assembly (1), and the half-adhesive edge sealing adhesive (2) is adhered to the long side of the laminated assembly (1).
5. The method for sealing a large-size double-glass assembly according to claim 1, wherein: the width of the semi-adhesive edge sealing adhesive (2) is 20-50 mm.
6. The method for sealing a large-size double-glass assembly according to claim 5, wherein: the width of the adhesive part (201) in the semi-adhesive edge sealing adhesive (2) accounts for 1/4-1/2 of the whole width.
7. The method for sealing a large-size double-glass assembly according to claim 1, wherein: the semi-adhesive edge sealing adhesive (2) is adhered to the laminated assembly (1) by edge sealing equipment (5).
8. The method for sealing a large-size double-glass assembly according to claim 7, wherein: the edge sealing device (5) comprises a bracket, and an adhesive tape reel (503), a first pressing roller (504) and a second pressing roller (505) which are rotatably connected to the bracket, wherein the semi-adhesive edge sealing adhesive (2) is wound on the adhesive tape reel (503), and the first pressing roller (504) and the second pressing roller (505) are arranged along the length direction of the semi-adhesive edge sealing adhesive (2).
9. The method for sealing a large-size double-glass assembly according to claim 8, wherein: the first pressing roller (504) and the second pressing roller (505) are respectively connected with the air cylinders, the second pressing roller (505) is positioned behind the first pressing roller (504) along the pasting direction of the semi-viscous edge sealing adhesive (2), and the pressure of the second pressing roller (505) is larger than that of the first pressing roller (504).
10. The method for sealing a large-size double-glass assembly according to claim 1, wherein: the periphery of the laminated assembly (1) is adhered with semi-adhesive edge sealing adhesive (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111651557.8A CN114300562B (en) | 2021-12-30 | 2021-12-30 | Edge sealing method for large-size double-glass assembly |
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| CN202111651557.8A CN114300562B (en) | 2021-12-30 | 2021-12-30 | Edge sealing method for large-size double-glass assembly |
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| CN114300562A CN114300562A (en) | 2022-04-08 |
| CN114300562B true CN114300562B (en) | 2023-06-23 |
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| CN116408856B (en) * | 2023-05-18 | 2024-05-07 | 宿迁市康利多木业有限公司 | Technological wood production process |
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| US20050247990A1 (en) * | 2004-05-05 | 2005-11-10 | Ming-Te Cheng | Image sensor packages and method of assembling the same |
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| WO2009069695A1 (en) * | 2007-11-30 | 2009-06-04 | Kaneka Corporation | Transparent electroconductive film and process for producing the transparent electroconductive film |
| CN202473981U (en) * | 2012-02-28 | 2012-10-03 | 常州天合光能有限公司 | Gel overflow-proof structure for solar component |
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