Photovoltaic module and gluing tool for photovoltaic module

Abstract

The utility model belongs to the field of photovoltaic technology, and discloses a photovoltaic module and a gluing tool used for the photovoltaic module, the photovoltaic module comprises a first glass plate, a second glass plate, a battery string, an edge sealing structure and a hollow support member, the edge sealing structure is arranged along the peripheries of the two glass plates and is used for sealing a gap between the two glass plates; hollowed-out supporting pieces are arranged between the battery string and the first glass plate and between the battery string and the second glass plate, the hollowed-out supporting pieces form hollowed-out areas, and the hollowed-out areas are used for being filled with bonding glue. The hollow-out area of the hollow-out supporting piece is filled with adhesive glue in the gluing packaging process, the hollow-out supporting piece can stably support the first glass plate and the battery string and support the second glass plate and the battery string in the gluing process, the whole photovoltaic module can be kept in a good form in the gluing process by combining the edge sealing structures arranged on the peripheries of the two glass plates, and the sealing performance of the whole photovoltaic module is improved. And the injected adhesive can be uniformly spread between the first glass plate and the second glass plate, so that the finished product quality of the photovoltaic module is improved.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a photovoltaic module and a glue applicator for the photovoltaic module. Background Technology

[0002] Photovoltaic modules consist of cell strings, front glass, and back glass. The cell strings are positioned between the front and back glass and encapsulated with liquid silicone to ensure the module's airtightness. During the encapsulation process, a machine spreads the liquid silicone evenly onto the front and back glass. After the cell strings are laminated, the silicone-coated front and back glass panels are closed and pressed together. This encapsulation method presents challenges in controlling the smoothing and application of the silicone, as well as in controlling the amount of silicone applied, resulting in low hygiene standards.

[0003] To address the aforementioned issues, existing technologies involve applying sealing material around the back or front glass during the encapsulation process, leaving injection ports; fixing the photovoltaic cell strings to the back or front glass; then integrating the back and front glass into a single unit, creating a cavity between them; injecting liquid adhesive into the cavity formed by the back and front glass; and finally curing the encapsulated photovoltaic module.

[0004] The above solution has the following drawbacks: Although the cavity formed between the front and back glass provides space for the injection of liquid silicone, the existence of this space results in the photovoltaic module being in a hollow state before the sealant is applied. The front and back glass are only supported by the sealing material around them, which has poor stability and makes it difficult to ensure that the photovoltaic module has a good shape during the sealant application process, resulting in poor quality of the finished photovoltaic module.

[0005] Therefore, there is an urgent need for a photovoltaic module and a glue application tool for photovoltaic modules to solve the above-mentioned problems in the existing technology. Utility Model Content

[0006] The purpose of this invention is to provide a photovoltaic module and a glue application tool for the photovoltaic module, which can improve the support stability between the battery string and the front and back glass during the glue application and encapsulation process, ensure that the photovoltaic module maintains a good shape during the glue application process, and improve the finished quality of the photovoltaic module.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] In a first aspect, a photovoltaic module is provided, comprising:

[0009] First glass plate and second glass plate;

[0010] A battery string, wherein the battery string is located between the first glass plate and the second glass plate, and is spaced apart from both the first glass plate and the second glass plate;

[0011] An edge sealing structure is provided along the outer periphery of the first glass plate and the second glass plate to seal the gap between the first glass plate and the second glass plate;

[0012] A hollow support member is provided between the battery string and the first glass plate, and between the battery string and the second glass plate. The hollow support member forms a hollow area, which is configured to be filled with adhesive.

[0013] As an optional solution for the photovoltaic module provided by this utility model, the hollow support member includes multiple support strips, which are arranged in a cross pattern to form a mesh structure.

[0014] As an optional solution for the photovoltaic module provided by this utility model, the support strip extends in a wave-like shape;

[0015] Alternatively, the support bar includes a main body and a support portion, with a plurality of support portions protruding from both the first and second sides of the main body. The plurality of support portions are spaced apart along the length direction of the main body, and the support portions abut against the battery string or the first glass plate or the second glass plate.

[0016] As an optional solution for the photovoltaic module provided by this utility model, the hollow support member includes a hollow adhesive film.

[0017] As an optional solution for the photovoltaic module provided by this utility model, the sealing structure includes a first sealing part, a second sealing part, and a third sealing part connected in sequence;

[0018] The first sealing part is in sealing contact with the side of the first glass plate opposite to the battery string, and the third sealing part is in sealing contact with the side of the second glass plate opposite to the battery string. The second sealing part blocks the gap between the first glass plate and the second glass plate, and a glue-applying hole is provided through the second sealing part. The glue-applying hole is configured to be used for inserting a glue-applying tube.

[0019] As an optional solution for the photovoltaic module provided by this utility model, the second sealing part is provided with a limiting part, the edge of the first glass plate is located between the limiting part and the first sealing part, and the edge of the second glass plate is located between the limiting part and the third sealing part.

[0020] As an optional solution for the photovoltaic module provided by this utility model, a first anti-slip part is provided on the side of the first sealing part facing the third sealing part, and the first anti-slip part is used to contact the first glass plate.

[0021] And / or, the third sealing part is provided with a second anti-slip part on the side facing the first sealing part, the second anti-slip part being used to contact the second glass plate.

[0022] As an optional solution for the photovoltaic module provided by this utility model, the edge sealing structure is an integrated structure;

[0023] And / or, the material of the sealing structure is an elastic material.

[0024] Secondly, a glue-applying tool for photovoltaic modules is provided, comprising:

[0025] The adhesive applicator has multiple adhesive dispensing areas, each of which has multiple adhesive dispensing holes. The adhesive applicator is configured to extend into the gap between the battery string and the glass plate and inject adhesive into the gap between the battery string and the glass plate through the adhesive dispensing holes of the multiple adhesive dispensing areas.

[0026] As an optional solution for the adhesive application tool for photovoltaic modules provided by this utility model, the adhesive application tube includes a tube body and multiple partition layers disposed within the tube body. The multiple partition layers divide the inner cavity of the tube body into multiple adhesive dispensing areas. The first ends of the multiple partition layers are arranged at intervals along the radial direction of the tube body, and the second ends of the multiple partition layers are distributed at intervals along the axial direction of the tube body. The tube body is provided with multiple adhesive dispensing holes corresponding to each adhesive dispensing area.

[0027] The beneficial effects of this utility model are:

[0028] The photovoltaic module provided by this utility model has a hollow support component between the first glass plate and the battery string, and a hollow support component between the second glass plate and the battery string. During the encapsulation process, adhesive is filled into the hollow area of ​​the hollow support component. During the encapsulation process, the hollow support component can stably support the first glass plate and the battery string, as well as the second glass plate and the battery string. Combined with the edge sealing structure set on the outer periphery of the two glass plates, the entire photovoltaic module can maintain a good shape during the encapsulation process. The injected adhesive can be evenly spread between the first glass plate and the second glass plate, thereby improving the finished quality of the photovoltaic module.

[0029] The present invention provides a glue-applying tool for photovoltaic modules, comprising a glue-applying tube with multiple glue-dispensing areas. In use, the glue-applying tube is inserted into the gap between the battery string and the glass plate to apply glue. The multiple glue-dispensing areas enable more uniform glue dispensing, making it easier for the adhesive to be evenly spread inside the photovoltaic module during glue application. This avoids the presence of air bubbles or dead corners where glue has not been applied, resulting in better glue application and improved glue-applying and encapsulation quality of the photovoltaic module. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the photovoltaic module provided in a specific embodiment of this utility model;

[0032] Figure 2 This is a top view of the first type of hollow support member provided in a specific embodiment of this utility model;

[0033] Figure 3 This is a cross-sectional view of the first type of hollow support member provided in a specific embodiment of this utility model;

[0034] Figure 4 This is a top view of the second type of hollow support member provided in a specific embodiment of this utility model;

[0035] Figure 5 This is a cross-sectional view of the second type of hollow support member provided in a specific embodiment of this utility model;

[0036] Figure 6 This is a top view of the edge sealing structure provided in a specific embodiment of this utility model;

[0037] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0038] Figure 8 This is a first cross-sectional view of the edge-sealing structure provided in a specific embodiment of this utility model;

[0039] Figure 9 This is a second cross-sectional view of the edge-sealing structure provided in a specific embodiment of this utility model;

[0040] Figure 10 This is a schematic diagram of applying adhesive to photovoltaic modules using the adhesive applicator provided in a specific embodiment of this utility model;

[0041] Figure 11 yes Figure 10 A magnified view of a section at point A in the middle;

[0042] Figure 12 This is a longitudinal cross-sectional view of the glue-applying tube provided in a specific embodiment of this utility model;

[0043] Figure 13 yes Figure 12 A partial view;

[0044] Figure 14 This is a bottom view of the glue applicator provided in a specific embodiment of this utility model;

[0045] Figure 15 This is a cross-sectional view of the glue applicator provided in a specific embodiment of this utility model.

[0046] In the picture:

[0047] 1. First glass plate; 2. Second glass plate; 3. Battery string; 4. Edge sealing structure; 5. Hollowed-out support component; 6. Adhesive tube;

[0048] 41. First sealing part; 42. Second sealing part; 43. Third sealing part; 44. Limiting part; 45. First limiting space; 46. Second limiting space;

[0049] 411. First anti-slip part; 431. Second anti-slip part;

[0050] 50. Hollowed-out area; 51. Supporting strip;

[0051] 511. Main body; 512. Supporting part;

[0052] 60. Glue outlet; 61. Tube body; 62. Separator layer; 63. Glue outlet area;

[0053] 621. First end; 622. Second end;

[0054] 100. Photovoltaic modules. Detailed Implementation

[0055] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0056] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0057] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0059] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0060] In the embodiments of this utility model, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.

[0061] Example 1

[0062] like Figure 1 As shown, this embodiment provides a photovoltaic module 100, including a first glass plate 1, a second glass plate 2, a battery string 3, an edge sealing structure 4, and a hollow support member 5. The photovoltaic module 100 can improve the support stability between the battery string 3 and the front and back glass during the glue sealing process, ensure that the photovoltaic module 100 maintains a good shape during the glue sealing process, and improve the finished product quality of the photovoltaic module 100.

[0063] For example, the first glass plate 1 is the front glass plate, and the second glass plate 2 is the back glass plate.

[0064] Specifically, a first glass plate 1 and a second glass plate 2 are stacked alternately, and a battery string 3 is located between the first glass plate 1 and the second glass plate 2, and is spaced apart from both the first glass plate 1 and the second glass plate 2. An edge-sealing structure 4 is provided along the outer periphery of the first glass plate 1 and the second glass plate 2 to seal the gap between them. A perforated support member 5 is provided between the battery string 3 and the first glass plate 1, and between the battery string 3 and the second glass plate 2. The perforated support member 5 forms a perforated area 50, which is configured to be filled with adhesive. That is, the perforated support member 5 provides support between the battery string 3 and the front glass plate, between the battery string 3 and the back glass plate, and provides a potting path for the adhesive.

[0065] For example, the adhesive injected when applying glue to the photovoltaic module 100 is liquid silicone.

[0066] The photovoltaic module 100 provided in this embodiment has a hollow support member 5 between the first glass plate 1 and the battery string 3, and a hollow support member 5 between the second glass plate 2 and the battery string 3. During the encapsulation process, adhesive is filled into the hollow area 50 of the hollow support member 5. During the encapsulation process, the hollow support member 5 can stably support the first glass plate 1 and the battery string 3, as well as the second glass plate 2 and the battery string 3. Combined with the sealing edge structure 4 set on the outer periphery of the two glass plates, the entire photovoltaic module 100 can maintain a good shape during the encapsulation process. The injected adhesive can be evenly spread between the first glass plate 1 and the second glass plate 2, thereby improving the finished product quality of the photovoltaic module 100.

[0067] like Figure 2 , Figure 3 , Figure 4 as well as Figure 5 As shown, the hollow support member 5 includes multiple support bars 51, which are arranged to cross each other to form a mesh structure. While supporting the space between the first glass plate 1 and the battery string 3, and the second glass plate 2 and the battery string 3, it can also form a hollow area 50 to facilitate the injection of adhesive.

[0068] For example, the hollow support member 5 includes a plurality of support bars 51 spaced apart along a first direction and a plurality of support bars 51 spaced apart along a second direction. The first and second directions are arranged at an angle to form a mesh structure supporting the battery string 3 and the glass plate. Specifically, the hollow support member 5 is a rectangular mesh structure adapted to the shape and size of the battery string 3, and the first and second directions are the length direction and width direction of the rectangular mesh structure, respectively.

[0069] In some alternative implementations, such as Figure 2 and Figure 3As shown, along a direction parallel to the battery string 3, the support bar 51 extends in a wave shape, with its crests and troughs supporting the first glass plate 1 (or the second glass plate 2) and the battery string 3 respectively, while also forming a shape for inserting the glue tube 6 (e.g. Figure 10 The space shown.

[0070] In other alternative implementations, such as Figure 4 and Figure 5 As shown, the support bar 51 includes a main body 511 and support parts 512. Multiple support parts 512 protrude from both the first and second sides of the main body 511, and are spaced apart along the length of the main body 511. The support parts 512 abut against the battery string 3, the first glass plate 1, or the second glass plate 2. For the multiple support bars 51 between the first glass plate 1 and the battery string 3, the support parts 512 protruding from the first and second sides respectively support the inner surface of the first glass plate 1 and one side of the battery string 3. For the multiple support bars 51 between the second glass plate 2 and the battery string 3, the support parts 512 protruding from the first and second sides respectively support the other side of the second glass plate 2 and the battery string 3. The mesh-like perforated support member 5 formed by the intersecting support bars 51 provides effective support while also creating space for inserting the glue applicator 6. Specifically, the space for inserting the glue applicator 6 is formed at the position of the main body 511 where the support parts 512 do not protrude.

[0071] For example, the cross-section of the support portion 512 can be circular, rectangular, hexagonal, etc., without limitation.

[0072] It is understood that in other embodiments, the hollow support member 5 can also be other shapes, not limited to those listed above, and the height can be within 2.5mm, with a single hollow area (i.e., Figure 2 and Figure 4 The area of ​​a single shaded region is, for example, 0.1 mm. 2 -80mm 2 There are no specific limitations here; the design can be based on the specific photovoltaic module 100 to be prepared.

[0073] For example, the perforated support member 5 includes a perforated adhesive film, specifically a mesh-like three-dimensional adhesive film. The adhesive film can be EVA (ethylene-vinyl acetate copolymer) adhesive film, TPU (thermoplastic polyurethane) adhesive film, POE (polyolefin elastomer) adhesive film, etc., and is not specifically limited here.

[0074] In some embodiments, the hollow support member 5 may consist only of a hollow adhesive film. When the photovoltaic module 100 after adhesive encapsulation is laminated, the liquid silicone and the adhesive film melt together, improving the encapsulation effect of the battery string 3.

[0075] In other embodiments, the perforated support 5 may include a perforated adhesive film and adhesive film support columns made of the adhesive film material. In this case, the perforated adhesive film and the adhesive film support columns can jointly support the gaps between the battery string 3 and the first glass plate 1, and between the battery string 3 and the second glass plate 2. For example, a mesh-like perforated adhesive film is first placed on the first glass plate 1, then multiple adhesive film support columns are arranged at the mesh openings of the mesh-like perforated adhesive film, and then the battery string 3 is placed on the perforated adhesive film and the multiple adhesive film support columns. After adhesive encapsulation, when the photovoltaic module 100 is laminated, the liquid silicone melts together with the perforated adhesive film and the multiple adhesive film support columns, improving the encapsulation effect of the battery string 3.

[0076] like Figure 8 The diagram shows a cross-sectional view of the sealing structure 4, which includes a first sealing part 41, a second sealing part 42, and a third sealing part 43 connected in sequence. The cross-section formed by the connection of the first sealing part 41, the second sealing part 42, and the third sealing part 43 is approximately U-shaped and is secured to the outer periphery of the first glass plate 1 and the second glass plate 2. The first sealing part 41 is in sealing contact with the side of the first glass plate 1 facing away from the battery string 3, and the third sealing part 43 is in sealing contact with the side of the second glass plate 2 facing away from the battery string 3. The second sealing part 42 seals the gap between the first glass plate 1 and the second glass plate 2, and a through-hole for applying glue is provided on the second sealing part 42. The glue-applying hole is configured for inserting a glue-applying tube 6. A glue-applying hole is provided on the second sealing part 42 to facilitate the glue-applying tube 6 extending into the hollow area 50 through the glue-applying hole. The first sealing part 41, the second sealing part 42, and the third sealing part 43 can effectively seal the gap between the first glass plate 1 and the second glass plate 2, preventing glue overflow during the glue application process of the photovoltaic module 100.

[0077] The dimensions of both the first glass plate 1 and the second glass plate 2 are larger than the dimensions of the battery string 3. After the two glass plates and the battery string 3 are stacked, the edges of the two glass plates protrude relative to the edge of the battery string 3. (Continue to the previous section) Figure 8 A limiting part 44 protrudes from the second sealing part 42, forming a first limiting space 45 between the limiting part 44 and the first sealing part 41. The edge of the first glass plate 1 is located within the first limiting space 45. A second limiting space 46 is formed between the limiting part 44 and the third sealing part 43, and the edge of the second glass plate 2 is located within the second limiting space 46. The limiting part 44 is used to limit the middle battery string 3, further ensuring that the photovoltaic module 100 maintains a good shape. That is, the shape of the sealing structure 4 provided in this embodiment can better adapt to the shape of the edge of the photovoltaic module 100, improving the encapsulation effect.

[0078] For example, such as Figure 8 As shown, the end of the limiting part 44 is semi-circular, or the limiting part 44 may also be shaped as follows: Figure 9The trapezoid shown can of course be a triangle or any other arbitrary shape; the shape of the limiting part 44 is not limited here.

[0079] Further, see Figure 8 The first sealing part 41 is provided with a first anti-slip part 411 on the side facing the third sealing part 43, and the third sealing part 43 is provided with a second anti-slip part 431 on the side facing the first sealing part 41. The first anti-slip part 411 is used to contact the first glass plate 1, and the second anti-slip part 431 is used to contact the second glass plate 2. This is to increase the friction between the first sealing part 41 and the first glass plate 1, and to increase the friction between the third sealing part 43 and the second glass plate 2, so that the sealing structure 4 is more stable and firm after installation, and to prevent slippage.

[0080] For example, the first anti-slip part 411 and the second anti-slip part 431 are anti-slip teeth, but they can also be anti-slip bumps or anti-slip patterns, as long as they can play an anti-slip role.

[0081] In this embodiment, the edge sealing structure 4 is an integral structure, such as... Figure 6 As shown, the edge-sealing structure 4 is a rectangular frame, requiring no assembly and resulting in higher production efficiency. (See also...) Figure 7 The corner of the edge sealing structure 4 is integrally formed, eliminating the need for later assembly of the long and short sides of the edge sealing structure 4, thus improving the assembly efficiency of the photovoltaic module 100. At the same time, the absence of seams also improves the sealing performance and eliminates the possibility of glue overflow.

[0082] Furthermore, the edge sealing structure 4 is made of an elastic material that can deform elastically, making it easy to fit the edge sealing structure 4 onto the outer periphery of the first glass plate 1 and the second glass plate 2. The material of the edge sealing structure 4 is rubber, exemplified by fluororubber, fluorosilicone rubber, special fluoropolymers and silicone rubber materials, phenylene silicone rubber, and other elastic, high-temperature resistant, and non-deformable materials, but not limited to the materials listed.

[0083] Of course, in other embodiments, the edge sealing structure 4 can also be a split structure, which is assembled after the long side and short side of the edge sealing structure 4 are made separately.

[0084] For example, the length of the edge sealing structure 4 is 1700mm to 2500mm and the length of the short side is 1000mm to 1400mm. Of course, it is not limited to the range listed, and can be set as needed during specific production.

[0085] like Figure 9As shown, the distance between the outer surfaces of the first sealing part 41 and the second sealing part 42 is L1, and the distance between their inner surfaces is L2. The dimension of L1 ranges from 3mm to 10mm, and the dimension of L2 ranges from 3mm to 8mm, but is not limited to the listed values. The maximum width of the limiting part 44 is L3, and the protrusion height of the limiting part 44 is L4. The value of L3 ranges from 1mm to 3mm, and the value of L4 ranges from 1mm to 3mm, but is not limited to the listed values. The protrusion height of the first anti-slip part 411 and the second anti-slip part 431 is L5. The value of L5 ranges from 0.1mm to 1mm, and can be 0.5mm, but is not limited to the listed values.

[0086] Example 2

[0087] This embodiment provides a glue-applying tool for photovoltaic modules, used to support and apply glue between the cell string 3 and the glass plate of the photovoltaic module 100. Specifically, as... Figure 1 and Figure 10 As shown, the adhesive applicator for photovoltaic modules includes an adhesive applicator tube 6.

[0088] Exemplarily, the adhesive applicator 6 in this embodiment can be used in conjunction with the perforated support member 5 to apply adhesive to the interior of the photovoltaic module 100. The perforated support member 5 is configured to support the battery string 3 and the glass plate of the photovoltaic module 100, forming a perforated area 50; the adhesive applicator 6 is provided with multiple adhesive outlet holes 60, which are used to extend into the perforated area 50 and inject adhesive into the perforated area 50 through the adhesive outlet holes 60. Exemplarily, the adhesive is liquid silicone.

[0089] The aforementioned glass plates include the first glass plate 1 and the second glass plate 2 in Embodiment 1. That is, the space between the battery string 3 and the first glass plate 1, and between the battery string 3 and the second glass plate 2, are all supported by the hollow support member 5. The hollow support member 5 is used to provide space for the glue applicator 6 to extend into and the glue pouring path.

[0090] Of course, the glue applicator tube 6 in this embodiment can also be used without the cooperation of the hollow support member 5, and can be directly applied to the interior of photovoltaic modules of any structure.

[0091] Specifically, the glue applicator 6 is provided with multiple glue dispensing areas 63, each glue dispensing area 63 having multiple glue dispensing holes 60, and adhesive is injected into the gap between the battery string and the glass plate through the glue dispensing holes 60 of the multiple glue dispensing areas 63.

[0092] By setting up a glue applicator 6 with multiple glue dispensing areas 63, the glue applicator 6 is inserted into the gap between the battery string 3 and the glass plate for glue application during use. The multiple glue dispensing areas 63 make the glue dispensing more uniform, which facilitates the even spreading of adhesive inside the photovoltaic module 100 during glue application. This avoids the presence of air bubbles or dead corners without glue during glue application, resulting in better glue application and improved glue application and encapsulation quality of the photovoltaic module 100.

[0093] When the glue applicator tube 6 is used in conjunction with the hollow support member 5, the hollow support member 5 can be placed between the battery string 3 and the glass plate to support the battery string 3 and the glass plate, preventing them from being suspended in the air. During the glue application process of the glue applicator tube 6, the photovoltaic module 100 can maintain a good shape. The glue applicator tube 6 is designed to extend into the hollow area 50 of the hollow support member 5, and the glue applicator tube 6 can be pulled out while applying glue, which facilitates uniform glue filling in the photovoltaic module 100 and improves the glue application and encapsulation quality of the photovoltaic module 100.

[0094] See Figure 10 and Figure 11 Multiple glue-applying tubes 6 can be simultaneously inserted into the photovoltaic module 100 to apply glue to multiple areas at the same time, thereby improving the uniformity and efficiency of glue application.

[0095] As a feasible implementation scheme, such as Figure 12 , Figure 13 , Figure 14 as well as Figure 15 As shown, the glue applicator tube 6 includes a tube body 61 and multiple partition layers 62 disposed within the tube body 61. The partition layers 62 divide the inner cavity of the tube body 61 into multiple glue dispensing areas 63 as described above. The first ends 621 of the multiple partition layers 62 are arranged radially at intervals along the tube body 61, and the second ends 622 of the multiple partition layers 62 are distributed axially at intervals along the tube body 61. The tube body 61 is provided with multiple glue dispensing holes 60 corresponding to each glue dispensing area 63. Liquid silicone flows from the first end 621 to the second end 622 of the partition layers 62. The outlet ends of the multiple glue dispensing areas 63 separated by the multiple partition layers 62 are arranged sequentially along the axial direction of the tube body 61. When glue is applied into the photovoltaic module 100 through the glue applicator tube 6, the glue is injected simultaneously through the multiple glue dispensing areas 63, thereby evenly spreading the liquid silicone inside the photovoltaic module 100, avoiding air bubbles or dead corners where glue has not been applied, and achieving a better glue application effect.

[0096] For example, see Figure 12 and Figure 15The tube body 61 has five partition layers 62, which divide the internal space of the tube body 61 into six dispensing areas 63. Liquid silicone flows from the inlet of the tube body 61 to the six dispensing areas 63 and exits at corresponding positions along the axial direction of the tube body 61, uniformly injecting silicone into the photovoltaic module 100. Of course, the number of partition layers 62 can also be set to one, two, or other numbers; no specific limitation is made here. The partition layers 62 are roughly L-shaped to separate multiple dispensing areas 63 along the axial direction of the tube body 61.

[0097] For example, the separator layer 62 does not have an adhesive outlet 60, so that the adhesive can smoothly pass through multiple adhesive outlet areas 63. Of course, the separator layer 62 can also have an adhesive outlet 60. Specifically... Figure 12 In this configuration, the upper sidewall of the tube 61 may not have a dispensing hole 60, allowing the adhesive to flow smoothly through the rightmost dispensing area 63. Alternatively, a dispensing hole 60 may be provided on the upper sidewall of the tube 61, as long as it allows for simultaneous dispensing from multiple dispensing areas 63.

[0098] See Figure 15 The tube body 61 has a circular cross-section for easy manufacturing. The entire tube 6 is made of a rigid material, such as stainless steel, and its length can be within 1.5m to ensure it will not bend. The diameter of the tube body 61 can be 1.5mm or less to allow it to extend into the hollow area 50 of the hollow support 5. The shape of the glue outlet 60 is not limited; it can be a round hole or a long strip hole, etc., to facilitate glue dispensing. The number of outlets can be determined according to the flow rate and amount of liquid silicone.

[0099] As another feasible implementation, the glue dispensing tube 6 is hollow inside and does not have a separator layer 62. In this case, multiple glue outlet holes 60 are distributed along the axial and circumferential directions of the glue dispensing tube 6. Specifically, multiple rows of glue outlet holes 60 are arranged along the circumference of the glue dispensing tube 6, and the multiple glue outlet holes 60 in each row are spaced apart along the axial direction of the glue dispensing tube 6. That is, the glue outlet holes 60 are evenly distributed along the axial and circumferential directions of the glue dispensing tube 6 to achieve uniform glue dispensing.

[0100] The steps for applying adhesive and sealing using the adhesive application tool provided in this embodiment are roughly as follows:

[0101] Place the first glass plate 1 (i.e., the front glass plate);

[0102] A perforated support member 5 is laid on the first glass plate 1. In this embodiment, it is a perforated mesh adhesive film.

[0103] Place the stacked battery string 3 on the hollow support 5;

[0104] A hollow support 5 is laid on the battery string 3. In this embodiment, it is a hollow mesh adhesive film.

[0105] The glue-applying tube 6 is pushed into the photovoltaic module 100, specifically above the battery string 3, and passes through the hollow area 50 of the hollow support member 5.

[0106] Place the second glass plate 2 (i.e., the back glass plate);

[0107] The edge sealing structure 4 is fitted around the outer periphery of the first glass plate 1 and the second glass plate 2 to achieve edge sealing, and the glue applicator 6 is inserted into the glue applicator hole of the edge sealing structure 4.

[0108] The liquid silicone is evenly distributed and spreads evenly inside the sealed component.

[0109] While injecting the glue, slowly pull out the glue applicator 6 to complete the glue application;

[0110] The photovoltaic module is laminated 100 times, and the liquid silicone and the hollow support component 5 made of adhesive film are fused together.

[0111] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A photovoltaic module, characterized in that, include: First glass plate (1) and second glass plate (2); Battery string (3), the battery string (3) is located between the first glass plate (1) and the second glass plate (2), and is spaced apart from both the first glass plate (1) and the second glass plate (2); An edge sealing structure (4) is provided along the outer periphery of the first glass plate (1) and the second glass plate (2) to seal the gap between the first glass plate (1) and the second glass plate (2); A hollow support member (5) is provided between the battery string (3) and the first glass plate (1) and between the battery string (3) and the second glass plate (2). The hollow support member (5) forms a hollow area (50), which is configured to be filled with adhesive.

2. The photovoltaic module according to claim 1, characterized in that, The hollow support member (5) includes multiple support bars (51), which are arranged in a cross pattern to form a mesh structure.

3. The photovoltaic module according to claim 2, characterized in that, The support bar (51) extends in a wavy shape; Alternatively, the support bar (51) includes a main body (511) and a support (512). The first and second sides of the main body (511) are provided with a plurality of support (512). The plurality of support (512) are spaced apart along the length direction of the main body (511). The support (512) abuts against the battery string (3) or the first glass plate (1) or the second glass plate (2).

4. The photovoltaic module according to claim 1, characterized in that, The hollow support component (5) includes a hollow adhesive film.

5. The photovoltaic module according to any one of claims 1-4, characterized in that, The sealing structure (4) includes a first sealing part (41), a second sealing part (42), and a third sealing part (43) connected in sequence; The first sealing part (41) is in sealing contact with the side of the first glass plate (1) facing away from the battery string (3), the third sealing part (43) is in sealing contact with the side of the second glass plate (2) facing away from the battery string (3), the second sealing part (42) blocks the gap between the first glass plate (1) and the second glass plate (2), and a glue-applying hole is provided through the second sealing part (42), the glue-applying hole is configured to be used for inserting a glue-applying tube (6).

6. The photovoltaic module according to claim 5, characterized in that, The second sealing part (42) has a protruding limiting part (44), the edge of the first glass plate (1) is located between the limiting part (44) and the first sealing part (41), and the edge of the second glass plate (2) is located between the limiting part (44) and the third sealing part (43).

7. The photovoltaic module according to claim 5, characterized in that, The first sealing part (41) is provided with a first anti-slip part (411) on the side facing the third sealing part (43), and the first anti-slip part (411) is used to contact the first glass plate (1); And / or, the third sealing part (43) is provided with a second anti-slip part (431) on the side facing the first sealing part (41), and the second anti-slip part (431) is used to contact the second glass plate (2).

8. The photovoltaic module according to claim 1, characterized in that, The edge sealing structure (4) is an integral structure; And / or, the material of the sealing structure (4) is an elastic material.

9. A glue-applying tool for photovoltaic modules, characterized in that, include: The glue applicator (6) is provided with multiple glue dispensing areas (63), each of the glue dispensing areas (63) having multiple glue dispensing holes (60). The glue applicator (6) is configured to extend into the gap between the battery string and the glass plate, and inject adhesive into the gap between the battery string and the glass plate through the glue dispensing holes (60) of the multiple glue dispensing areas (63).

10. The adhesive applicator for photovoltaic modules according to claim 9, characterized in that, The glue applicator tube (6) includes a tube body (61) and a plurality of partition layers (62) disposed within the tube body (61). The plurality of partition layers (62) divide the inner cavity of the tube body (61) into a plurality of glue dispensing areas (63). The first ends (621) of the plurality of partition layers (62) are arranged radially at intervals along the tube body (61), and the second ends (622) of the plurality of partition layers (62) are distributed axially at intervals along the tube body (61). A plurality of glue dispensing holes (60) are provided on the tube body (61) corresponding to each glue dispensing area (63).

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