CN216413097U - Packaging adhesive film - Google Patents
Packaging adhesive film Download PDFInfo
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- CN216413097U CN216413097U CN202122999097.XU CN202122999097U CN216413097U CN 216413097 U CN216413097 U CN 216413097U CN 202122999097 U CN202122999097 U CN 202122999097U CN 216413097 U CN216413097 U CN 216413097U
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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 utility model discloses a packaging adhesive film 100, which comprises an adhesive film body and surface patterns arranged on at least one surface of the adhesive film body, wherein the surface patterns comprise first patterns basically extending along a first direction and second patterns basically extending along a second direction, the first direction and the second direction are intersected at a preset angle alpha, and the preset angle alpha is more than 0 degree and less than 180 degrees; the surface pattern includes at least one first pattern and at least one second pattern. This application owing to adopted and set up surface decorative pattern on encapsulation glued membrane 100 surface, the effectual technical problem who solves among the prior art has realized increasing the adhesive force of encapsulation glued membrane 100 on the photovoltaic base plate, has reduced the skew problem that appears in photovoltaic module laying process.
Description
Technical Field
The utility model relates to a photovoltaic packaging technology, in particular to a packaging adhesive film.
Background
According to the national requirements on 'carbon peak reaching' and 'carbon neutralization', the demand of using new energy to replace thermal power generation is more urgent, and photovoltaic power generation as green energy is considered as ideal new energy to replace thermal power. The photovoltaic module is a core component in the photovoltaic power generation process.
The photovoltaic module generally comprises a photovoltaic electrode plate and substrates arranged on two sides of the battery plate, and the battery plate and the substrates are packaged through a packaging adhesive film. The packaging adhesive film plays an important role in packaging and subsequent use of the photovoltaic module, and the packaging quality of the packaging adhesive film directly influences the service life of the photovoltaic module.
However, in the process of implementing the technical solution in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems:
the electric carving random embossing patterns on the current packaging adhesive film are poor in adhesive force of photovoltaic substrates such as glass, the sliding phenomenon easily occurs in the production line speed-up process, meanwhile, the packaging adhesive film and grid lines on a multi-main-grid battery piece can also slide in a rolling mode, so that the problem of deviation occurs in the assembly laying process, and the problems of poor appearance such as battery piece deviation, piece combination, air bubbles and glue shortage occur after lamination.
Disclosure of Invention
The embodiment of the application solves the problem of deviation of the packaging adhesive film in the assembly laying process in the prior art, realizes improvement of adhesive force of the packaging adhesive film on substrates such as glass in the laying process, avoids rolling and sliding of the packaging adhesive film and grid lines on a multi-main-grid battery piece, and ensures the technical effect of the photovoltaic assembly packaging yield.
The embodiment of the application provides a packaging adhesive film, including the glued membrane body, packaging adhesive film still including locating the surperficial decorative pattern on at least one surface of glued membrane body, the surface decorative pattern includes:
a first pattern extending substantially in a first direction;
a second pattern extending substantially in a second direction;
the first direction and the second direction are intersected at a preset angle which is more than 0 degree and less than 180 degrees;
the surface pattern includes at least one first pattern and at least one second pattern.
Furthermore, the thickness of the glue film body is 0.3-2.0mm, the length of the first pattern is 1-5mm, the width of the first pattern is 0.05-3mm, and the length of the second pattern is 1-5mm, and the width of the second pattern is 0.05-3 mm.
Further, when the preset angle is greater than 0 ° and equal to or less than 90 °, the aspect ratio of the first pattern is (1.5-100): 1, the aspect ratio of the second pattern is (1.5-100): 1; when the preset angle is greater than 90 ° and less than 180 °, the aspect ratio of the first pattern is (1.5-10): 1, the aspect ratio of the second pattern is (1.5-10): 1.
further, the first pattern and the second pattern are in contact with each other.
Further, one end of the first pattern and one end of the second pattern are in contact with each other, one end of the first pattern and a midpoint of the second pattern are in contact with each other, or a midpoint of the first pattern and a midpoint of the second pattern are in contact with each other.
Further, the first pattern and the second pattern are in a gamma-type distribution, a T-type distribution, or a Cross-type distribution therebetween.
Furthermore, adjacent pattern units are connected with each other, so that the surface patterns are in a cross network structure.
Further, the first pattern and the second pattern are separated from each other.
Further, the first pattern and the second pattern are protrusions.
Further, at least one of the first pattern or the second pattern is an arc-shaped protrusion, and the maximum height of the arc-shaped protrusion is 0.05-1.5 mm.
Further, at least one of the first pattern or the second pattern is a mesa-shaped protrusion, and the height of the mesa-shaped protrusion is 0.05-1.5 mm.
The technical scheme provided in the embodiment of the application has at least the following advantages:
the surface patterns are arranged on the surface of the packaging adhesive film, so that the technical problem in the prior art is effectively solved, the adhesive force of the packaging adhesive film on the photovoltaic substrate is increased, the rolling sliding of the packaging adhesive film and the grid lines on the multi-main-grid battery piece is avoided, and the offset problem in the laying process of the photovoltaic module is reduced.
Drawings
FIG. 1 is a schematic view of a packaging film in one implementation of the present application;
FIG. 2 is a schematic view of a packaging film in another embodiment of the present disclosure;
FIG. 3 is a schematic view of a packaging film in another implementation of the present application;
FIG. 4 is a schematic view of a packaging film in another implementation of the present application;
FIG. 5 is a schematic view of a packaging film in another implementation of the present application;
FIG. 6 is a schematic longitudinal cross-sectional view of a first pattern in one implementation of the present application;
FIG. 7 is a schematic longitudinal section of a first pattern in another embodiment of the present application;
FIG. 8 is a schematic longitudinal section of a first pattern in another embodiment of the present application;
FIG. 9 is a schematic view of a packaging film in another implementation of the present application;
FIG. 10 is a schematic view of a packaging film in another implementation of the present application;
fig. 11 is a schematic view of a packaging film in another embodiment of the present disclosure.
In the figure: a packaging adhesive film 100, a first direction 101, a second direction 102, a preset angle alpha, a thickness H, a height L, a length a and a width b; the adhesive film comprises an adhesive film body 11, a surface pattern 12, a first pattern 121 and a second pattern 122.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiments of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to examples.
The embodiment of the application provides a packaging adhesive film 100, solves the problem of poor appearance of the packaged assembly caused by poor adhesive force between the packaging adhesive film and a photovoltaic substrate in the prior art, avoids rolling and sliding of the packaging adhesive film and grid lines on a multi-main-grid battery plate, and realizes that the packaging adhesive film 100 does not deviate in the photovoltaic assembly laying process by arranging surface patterns 12 on the surface of the packaging adhesive film 100.
Embodiments in the present application provide a packaging adhesive film 100, which is specifically a photovoltaic packaging adhesive film. As shown in fig. 1, the adhesive film includes an adhesive film body 11 and a surface pattern 12 disposed on at least one surface of the adhesive film body 11, wherein the surface pattern 12 includes at least two identical or different pattern units. The pattern unit comprises in particular a first pattern 121 and a second pattern 122, the first pattern 121 extending substantially along the first direction 101; the second pattern 122 extends substantially along the second direction 102. The first direction 101 and the second direction 102 intersect at a predetermined angle α, which is greater than 0 ° and less than 180 °. The surface patterns 12 are arranged on the surface of the packaging adhesive film 100, so that the adhesive force between the packaging adhesive film 100 and the substrate in the component laying process can be increased, and the problem that the adhesive force between the packaging adhesive film and the substrate is poor and the deviation is easy to generate in the prior art is solved. Meanwhile, the surface patterns 12 are added, so that the stripping performance between the formed packaging adhesive film 100 and a mold can be improved, the integrity of the stripped packaging adhesive film 100 is ensured, and the problem that the formed packaging adhesive film is difficult to strip in the prior art is solved. The surface pattern 12 includes at least one pattern unit formed by a first pattern 121 and a second pattern 122, the first pattern 121 and the second pattern 122 are substantially strip-shaped, the first pattern 121 extends substantially along the first direction 101, the second pattern 122 extends substantially along the second direction 102, an included angle between the first direction 101 and the second direction 102 is a preset angle α, the preset angle α only needs to satisfy that the first direction 101 and the second direction 102 are not parallel to or overlapped with each other, and generally speaking, under the condition of ensuring technical effects, the first direction 101 and the second direction 102 are set to be substantially perpendicular.
As an implementation mode, the thickness H of the glue film body 11 is 0.3-2.0 mm. The packaging adhesive film 100 is provided with the protruding structure, if the thickness H of the adhesive film body 11 is still equal to the existing adhesive film without the protruding adhesive film, the adhesive content of the adhesive film is inevitably large, the production cost is increased, and the assembly can be packaged and then the bonding capacity is reduced due to the fact that the adhesive layer passes through the adhesive layer, so that the service life of the assembly is influenced. In order to ensure that the glue content in the packaging glue film 100 can meet the packaging requirement of the photovoltaic module, the thickness H of the glue film body 11 needs to be adjusted adaptively. For the packaging adhesive film 100 with more protruding structures, the thickness H of the adhesive film body 11 needs to be properly reduced. In addition, the thickness H of the adhesive film body 11 can be set according to actual production requirements. The thickness H of the glue film body 11 is within a range of 0.3-2.0mm, which is a proper thickness H range for the application, so that the requirement of 100 glue content of the packaging glue film can be met, the production cost can be reduced as much as possible, and the production efficiency is improved.
As one implementation, the length a of the first pattern 121 is 1 to 5mm and the width b is 0.05 to 3 mm; the second pattern 122 has a length a of 1-5mm and a width b of 0.05-3 mm. In addition, the sizes of the first patterns 121 and the second patterns 122 are limited to a certain extent, so that the first patterns 121 and the second patterns 122 have certain lengths a and widths b, the contact area between the packaging adhesive film 100 and the substrate can be increased, the adhesion between the packaging adhesive film 100 and the substrate during laying is ensured, and the problems of slippage and the like are avoided. The sizes of the first patterns 121 and the second patterns 122 are not too large, the first patterns 121 and the second patterns 122 are too large, the number of the first patterns 121 and the second patterns 122 is small in a unit area of the packaging adhesive film 100, and during packaging, the contact area between the packaging adhesive film 100 and a substrate is small, so that the adhesive force of the packaging adhesive film 100 on the substrate is reduced, and the problem that the packaging adhesive film 100 is easy to slip still exists and cannot be solved. The sizes of the first pattern 121 and the second pattern 122 are not too small, the sizes of the first pattern 121 and the second pattern 122 are too small, the number of the first pattern 121 and the second pattern 122 is large in the unit area of the packaging adhesive film 100, the difficulty of peeling the packaging adhesive film 100 from the adhesive film pattern roller is increased, and the integrity of the packaging adhesive film 100 is adversely affected.
As one implementation, when the preset angle is greater than 0 ° and equal to or less than 90 °, the aspect ratio of the first pattern is (1.5-100): 1, the aspect ratio of the second pattern is (1.5-100): 1; when the preset angle is greater than 90 ° and less than 180 °, the aspect ratio of the first pattern is (1.5-10): 1, the aspect ratio of the second pattern is (1.5-10): 1. when the contained angle between first decorative pattern and the second decorative pattern is greater than 90, the whole space that is become by the decorative pattern unit of first decorative pattern and second decorative pattern is bigger, if first decorative pattern and second decorative pattern aspect ratio are still great this moment, can make the area of decorative pattern less in the unit glued membrane area, reduce the area of contact between encapsulation glued membrane and the base plate, can reduce the adhesive force between encapsulation glued membrane and the base plate when laying, produce the scheduling problem that slides easily, consequently under the great condition of contained angle between first decorative pattern and the second decorative pattern, inject the aspect ratio of first decorative pattern or first decorative pattern and guarantee the area of contact between encapsulation glued membrane and the base plate when laying in a less within range, guarantee adhesive force between the two.
As an implementation, the first pattern 121 and the second pattern 122 contact each other. The first pattern 121 and the second pattern 122 may be disposed in direct contact with each other to form an intersection or cross-over point. When the first pattern 121 and the second pattern 122 contact each other to form a crossing point or a crossing point, the first pattern 121 and the second pattern 122 are connected to each other and supported by each other, so that structural stability of the first pattern 121 and the second pattern 122 is increased, and a yield is easily lowered such as a position deviation is not easily generated in the first pattern 121 and the second pattern 122.
As one implementation, one end of the first pattern 121 and one end of the second pattern 122 contact each other, one end of the first pattern 121 and a midpoint of the second pattern 122 contact each other, or a midpoint of the first pattern 121 and a midpoint of the second pattern 122 contact each other. The specific case where the first pattern 121 and the second pattern 122 contact each other may be that one end of the first pattern 121 and one end of the second pattern 122 contact each other, that one end of one of the first pattern 121 or the second pattern 122 contacts any point of the other pattern except for an end point, and that any point of the first pattern 121 except for an end point and any point of the second pattern 122 except for an end point contact each other.
As one implementation, the mutual contact between the first pattern 121 and the second pattern 122 is in a "t-type" distribution (as shown in fig. 2), in a "c-type" distribution (as shown in fig. 3), or in a "c + type" distribution (as shown in fig. 4). For simplicity of the mold design, the first pattern 121 and the second pattern 122 are arranged in this implementation to contact each other and form an intersection or point of intersection. Specifically, the first pattern 121 and the second pattern 122 may be arranged such that one end of the first pattern 121 and one end of the second pattern 122 contact each other, or one end of the first pattern 121 and a midpoint of the second pattern 122 contact each other, or a midpoint of the first pattern 121 and a midpoint of the second pattern 122 contact each other. The mutual arrangement of first pattern 121 and second pattern 122 allows first pattern 121 and second pattern 122 to support each other, ensuring the structural integrity of first pattern 121 and second pattern 122 during the manufacturing process.
In one implementation, as shown in fig. 5, adjacent pattern units are interconnected such that the surface pattern 12 has a cross-network structure. In the case that the first patterns 121 and the second patterns 122 contact with each other, the adjacent first patterns 121 may directly contact with each other end to end, and the adjacent second patterns 122 may also directly contact with each other end to end, so as to finally form the surface pattern 12 in the cross network structure.
As an implementation, the first pattern 121 and the second pattern 122 are separated from each other. The first pattern 121 and the second pattern 122 may be in a separated state without contacting each other.
As an implementation, the first pattern 121 and the second pattern 122 are protrusions. The packaging film 100 needs to be attached to a substrate made of glass or the like before the photovoltaic module is packaged, the module in the prior art is developed in the direction of large size, and the packaging film and the substrate are also developed in the direction of large size. In the actual production process of attaching the packaging adhesive film to the substrate, the periphery of the packaging adhesive film is often attached to the substrate in advance, and one problem exists at the moment is that a large amount of air is not discharged in time at some positions of the packaging adhesive film and the substrate after the periphery of the adhesive film is attached to the substrate. In the prior art, air is exhausted by adopting an air exhausting mode, but due to the direction of the development of assemblies towards large sizes, if the air is exhausted by adopting the air exhausting mode only, the air exhausting efficiency is low. And along with the going on of bleeding, encapsulation glued membrane and base plate are constantly laminated, still can have partial air to be unable all to be discharged in the center of base plate etc. far away position from air exhaust apparatus finally, have the bubble between encapsulation glued membrane and base plate, the quality after these bubbles can influence photovoltaic module lamination reduces photovoltaic module's quality and life. Set up certain protruding structure on glued membrane body 11, have certain space between the protruding structure, these spaces can provide discharge passage for the gaseous of encapsulation glued membrane 100 with the base plate laminating in-process, can realize discharging the air completely, guarantee the laminating effect between glued membrane and the base plate, and on the other hand also can reduce the glued membrane and slide on the base plate.
In one implementation, as shown in fig. 6, at least one of the first pattern 121 or the second pattern 122 is a mesa protrusion, and the mesa protrusion height L is 0.2 to 1.5 mm.
As one implementation, as shown in fig. 7, at least one of the first pattern 121 or the second pattern 122 is a rectangular parallelepiped protrusion, and the height L of the rectangular parallelepiped protrusion is 0.2 to 1.5 mm.
As one implementation, as shown in fig. 8, at least one of the first pattern 121 or the second pattern 122 is an arc-shaped protrusion, and the maximum height L of the arc-shaped protrusion is 0.2 to 1.5 mm.
The top surfaces of the first pattern 121 and the second pattern 122 may be horizontal surfaces or curved surfaces having a certain curvature. The height L of the first pattern 121 and the second pattern 122 is not too high, otherwise, the adhesive shortage of the whole packaging adhesive film 100 is too high due to the adhesive shortage of the pattern layer formed by the first pattern 121 and the second pattern 122, which affects the bonding capability of the packaging adhesive film 100 during the subsequent assembly packaging. The height L of the first pattern 121 and the second pattern 122 is preferably not greater than the thickness H of the adhesive film body 11.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example 1
As shown in fig. 1, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first patterns 121 and the second patterns 122 are distributed in a similar-t-type distribution without contacting each other, the first patterns 121 are linear protrusions (as shown in fig. 7) having an arc shape in a longitudinal section along the first direction 101, and the second patterns 122 are linear protrusions having an arc shape in a longitudinal section along the second direction 102, which is the same as that of the first patterns 121. The thickness H of the adhesive film body 11 is 0.3mm, the length a of the first pattern 121 is 1.0mm, the width b of the first pattern 121 is 0.05mm, the height L of the first pattern 121 is 0.05mm, the length a of the second pattern 122 is 1.0mm, the width b of the second pattern 122 is 0.05mm, and the height L of the second pattern 122 is 0.05 mm.
Example 2
As shown in fig. 2, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first patterns 121 and the second patterns 122 are distributed in a "t-type" shape in contact with each other, the first patterns 121 are linear protrusions (as shown in fig. 7) having an arc shape in a longitudinal section along the first direction 101, and the second patterns 122 are linear protrusions having an arc shape in a longitudinal section along the second direction 102, which is the same as that of the first patterns 121. The thickness H of the adhesive film body 11 is 1.0mm, the length a of the first pattern 121 is 5.0mm, the width b of the first pattern 121 is 3.0mm, the height L of the first pattern 121 is 1.5mm, the length a of the second pattern 122 is 5.0mm, the width b of the second pattern 122 is 3.0mm, and the height L of the second pattern 122 is 1.5 mm.
Example 3
As shown in fig. 3, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first pattern 121 and the second pattern 122 are distributed in a gamma shape in contact with each other, the first pattern 121 is a stripe-shaped protrusion (as shown in fig. 7) having an arc-shaped longitudinal section along the first direction 101, and the second pattern 122 is an arc-shaped stripe-shaped protrusion having the same shape as the first pattern 121 along the second direction 102. The thickness H of the adhesive film body 11 is 1.5mm, the length a of the first pattern 121 is 2.0mm, the width b of the first pattern 121 is 0.1mm, the height L of the first pattern 121 is 0.1mm, the length a of the second pattern 122 is 2.0mm, the width b of the second pattern 122 is 0.1mm, and the height L of the second pattern 122 is 0.1 mm.
Example 4
As shown in fig. 4, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first patterns 121 and the second patterns 122 are distributed in a cross shape in contact with each other, the first patterns 121 are linear protrusions (as shown in fig. 7) having an arc-shaped longitudinal section along the first direction 101, and the second patterns 122 are linear protrusions having an arc-shaped longitudinal section along the second direction 102, the same as that of the first patterns 121. The thickness H of the adhesive film body 11 is 2.0mm, the length a of the first pattern 121 is 3.0mm, the width b of the first pattern 121 is 0.5mm, the height L of the first pattern 121 is 0.4mm, the length a of the second pattern 122 is 3.0mm, the width b of the second pattern 122 is 0.5mm, and the height L of the second pattern 122 is 0.4 mm.
Example 5
As shown in fig. 5, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first patterns 121 and the second patterns 122 are distributed in a cross shape in contact with each other, the first patterns 121 are strip-shaped protrusions (as shown in fig. 7) having a rectangular longitudinal section along the first direction 101, and the second patterns 122 are rectangular strip-shaped protrusions having the same longitudinal section along the second direction 102 as the first patterns 121. The adjacent pattern units are connected with each other, so that the surface pattern 12 is in a cross network structure. The thickness H of the adhesive film body 11 is 2.0mm, the length a of the first pattern 121 is 4.0mm, the width b of the first pattern 121 is 2.5mm, the height L of the first pattern 121 is 1.5mm, the length a of the second pattern 122 is 4.0mm, the width b of the second pattern 122 is 2.5mm, and the height L of the second pattern 122 is 1.5 mm.
Example 6
As shown in fig. 9, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units formed by a first pattern 121 and a second pattern 122, the first pattern 121 extends along a first direction 101, the second pattern 122 extends along a second direction 102, the first direction 101 and the second direction 102 are perpendicular to each other, i.e. an included angle between the first direction 101 and the second direction 102 is a preset angle α, and the preset angle α is 90 °. The first patterns 121 and the second patterns 122 are distributed in a 'gamma' shape without contacting each other, the first patterns 121 are stripe-shaped protrusions (as shown in fig. 7) having a trapezoidal longitudinal section along the first direction 101, and the second patterns 122 are stripe-shaped protrusions having a trapezoidal longitudinal section along the second direction 102, which is the same as that of the first patterns 121. The thickness H of the adhesive film body 11 is 1.5mm, the length a of the first pattern 121 is 3.0mm, the width b of the first pattern 121 is 2.0mm, the height L of the first pattern 121 is 1.0mm, the length a of the second pattern 122 is 3.0mm, the width b of the second pattern 122 is 2.0mm, and the height L of the second pattern 122 is 1.0 mm.
Example 7
As shown in fig. 10, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units consisting of a first pattern 121 and a second pattern 122, the first pattern 121 extending in a first direction 101 and the second pattern 122 extending in a second direction 102, the angle between the first direction 101 and the second direction 102 being a predetermined angle α, the predetermined angle α being 135 °. One end of the first pattern 121 and one end of the second pattern 122 are in contact with each other, the first pattern 121 is a linear protrusion having an arc shape in a longitudinal section along the first direction 101 (as shown in fig. 7), and the second pattern 122 is a linear protrusion having an arc shape in a longitudinal section along the second direction 102, which is the same as the first pattern 121. The thickness H of the adhesive film body 11 is 1.5mm, the length a of the first pattern 121 is 3.0mm, the width b of the first pattern 121 is 1.5mm, the height L of the first pattern 121 is 0.8mm, the length a of the second pattern 122 is 3.0mm, the width b of the second pattern 122 is 1.5mm, and the height L of the second pattern 122 is 0.8 mm.
Example 8
As shown in fig. 11, a packaging adhesive film 100 includes an adhesive film body 11, a surface pattern 12 is disposed on one surface of the adhesive film body 11, and the surface pattern 12 and the adhesive film body 11 are integrally formed. The surface pattern 12 comprises pattern units consisting of a first pattern 121 and a second pattern 122, the first pattern 121 extending in a first direction 101 and the second pattern 122 extending in a second direction 102, the angle between the first direction 101 and the second direction 102 being a predetermined angle α, the predetermined angle α being 135 °. One end of the first pattern 121 and one end of the second pattern 122 are in contact with each other, the first pattern 121 is a strip-shaped protrusion (as shown in fig. 8) having an arc-shaped longitudinal section along the first direction 101, the second pattern 122 is a strip-shaped protrusion having an arc-shaped longitudinal section along the second direction 102, the arc-shaped strip-shaped protrusion is the same as the first pattern 121, and the first pattern and the second pattern are matched with each other to form a structure similar to a fiber warp and weft knitting structure. The thickness H of the adhesive film body 11 is 1.5mm, the length a of the first pattern 121 is 3.0mm, the width b of the first pattern 121 is 1.5mm, the maximum height L of the first pattern 121 is 0.8mm, the length a of the second pattern 122 is 3.0mm, the width b of the second pattern 122 is 1.5mm, and the maximum height L of the second pattern 122 is 0.8 mm.
The encapsulating adhesive films prepared in examples 1-8 have no problem of slippage of the encapsulating adhesive film or displacement of the cell sheet when the encapsulating adhesive film is laminated in the preparation of a photovoltaic module.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
Claims (11)
1. The utility model provides a packaging adhesive film, includes the glued membrane body, its characterized in that, packaging adhesive film still includes:
locate the surface pattern on at least one surface of glued membrane body, surface pattern includes:
a first pattern extending substantially in a first direction;
a second pattern extending substantially in a second direction;
the first direction and the second direction are intersected at a preset angle which is more than 0 degree and less than 180 degrees;
said surface pattern comprises at least one of said first pattern and at least one of said second pattern.
2. The packaging adhesive film of claim 1, wherein:
the thickness of the glue film body is 0.3-2.0mm, the length of the first patterns is 1-5mm, the width of the first patterns is 0.05-3mm, and the length of the second patterns is 1-5mm, and the width of the second patterns is 0.05-3 mm.
3. The packaging adhesive film of claim 1, wherein:
the preset angle is greater than 0 degrees and less than or equal to 90 degrees, and then the length-width ratio of the first pattern is (1.5-100): 1, the aspect ratio of the second pattern being (1.5-100): 1;
the preset angle is greater than 90 degrees and less than 180 degrees, the length-width ratio of the first pattern is (1.5-10): 1, the aspect ratio of the second pattern being (1.5-10): 1.
4. the packaging adhesive film of claim 1, wherein:
the first pattern and the second pattern are in contact with each other.
5. The packaging adhesive film of claim 4, wherein:
one end of the first pattern is in contact with one end of the second pattern, one end of the first pattern is in contact with a midpoint of the second pattern, or the midpoint of the first pattern is in contact with a midpoint of the second pattern.
6. The packaging adhesive film of claim 5, wherein:
the first pattern and the second pattern are distributed in a gamma-type distribution, a T-type distribution, or a Cross-type distribution.
7. The packaging adhesive film of claim 4, wherein:
the first patterns and the second patterns form pattern units, and adjacent pattern units are connected with each other, so that the surface patterns are in a cross network structure.
8. The packaging adhesive film of claim 1, wherein:
the first pattern and the second pattern are separated from each other.
9. The packaging adhesive film of claim 1, wherein:
the first pattern and the second pattern are protrusions.
10. The packaging adhesive film of claim 9, wherein:
at least one of the first pattern or the second pattern is an arc-shaped bulge, and the maximum height of the arc-shaped bulge is 0.05-1.5 mm.
11. The packaging adhesive film of claim 1, wherein:
at least one of the first pattern or the second pattern is a mesa-shaped protrusion, and the height of the mesa-shaped protrusion is 0.05-1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999097.XU CN216413097U (en) | 2021-11-26 | 2021-11-26 | Packaging adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122999097.XU CN216413097U (en) | 2021-11-26 | 2021-11-26 | Packaging adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216413097U true CN216413097U (en) | 2022-04-29 |
Family
ID=81305557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122999097.XU Active CN216413097U (en) | 2021-11-26 | 2021-11-26 | Packaging adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216413097U (en) |
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- 2021-11-26 CN CN202122999097.XU patent/CN216413097U/en active Active
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