Double-layer glass packaging structure and photovoltaic module
By setting mutually cooperating sealing structures and sealants at the edges of the two glass panes of the double-glass photovoltaic module, the problem of poor sealing performance is solved, achieving higher waterproofness and structural stability, reducing production costs and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional double-glass photovoltaic modules have poor sealing performance between the two glass panes, resulting in poor waterproof performance, high production costs, and limited flexibility in the production process.
A first sealing structure and a second sealing structure are respectively set at the edges of the two pieces of glass, so that they cooperate with each other to achieve a tight fit. A sealant is applied at the joint, and the sealing effect is enhanced by the interlocking or snapping mechanism of the first and second textures.
It significantly improves the sealing performance of the double-glazed structure, reduces production costs, enhances structural stability and durability, reduces personnel and equipment input in the production process, and extends the service life of the components.
Smart Images
Figure CN224037737U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic power generation technical field, specifically provide a double -layer glass package structure and photovoltaic module. BACKGROUND
[0002] The double -glass photovoltaic module is a composite layer structure composed of two pieces of glass and solar cell pieces, and the cell pieces are connected in series and parallel through wires to lead wires to form a solar cell panel.
[0003] In the manufacturing process of the double -glass photovoltaic module, it is crucial to ensure the long-term stability and waterproof performance of the module. The traditional edge treatment method of the double -glass photovoltaic module often relies on additional laminated frame tooling to protect the edges of the two pieces of glass and prevent damage during the lamination process. However, this treatment method not only increases the production cost, but also limits the flexibility of the production process. In addition, the waterproof performance of the photovoltaic module is also one of the key factors affecting its service life and performance. The traditional waterproof method mainly relies on applying sealant or setting waterproof strips on the edges of the two pieces of glass, but these methods often have poor sealing effect, are prone to aging, and are difficult to ensure the waterproof performance of the double -glass photovoltaic module for a long time.
[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. SUMMARY
[0005] The utility model aims at solving the above technical problem, that is, solving the problem of poor sealing performance between the two pieces of glass of the double -glass photovoltaic module.
[0006] In a first aspect, the utility model provides a double -layer glass package structure, comprising two pieces of first glass and second glass stacked, the opposite edge of the first glass and the second glass is respectively provided with first sealing structure and second sealing structure, the first sealing structure and the second sealing structure can be matched to seal the edge of the first glass and the second glass.
[0007] In the preferred technical solution of the above double -layer glass package structure, the first sealing structure is a first texture provided on the first glass, and the second sealing structure is a second texture provided on the second glass, and the first texture and the second texture can be engaged with each other.
[0008] In the preferred technical solution of the above double -layer glass package structure, the first texture comprises a plurality of first protrusions and first grooves arranged in sequence, the second texture comprises a plurality of second protrusions and second grooves arranged in sequence, a plurality of the first protrusions and a plurality of the second grooves are matched and connected one by one, and a plurality of the second protrusions and a plurality of the first grooves are matched and connected one by one.
[0009] In the preferred technical solution of the double-layer glass packaging structure, the height of the first protrusion is the same as the height of the second protrusion, the depth of the first groove is the same as the depth of the second groove, and the height of the first protrusion is greater than the depth of the second groove, so as to form a cell mounting space between the first glass and the second glass.
[0010] In the preferred technical solution of the double-layer glass packaging structure, the first protrusion is trapezoidal in shape, and / or
[0011] The second protrusion is trapezoidal in shape.
[0012] In the preferred technical solution of the double-layer glass packaging structure, a sealant is further arranged between the first seal structure and the second seal structure.
[0013] In the preferred technical solution of the double-layer glass packaging structure, the sealant is a silicone sealant or a butyl sealant.
[0014] In the preferred technical solution of the double-layer glass packaging structure, the width of the first seal structure and the second seal structure is 10mm-20mm.
[0015] In the preferred technical solution of the double-layer glass packaging structure, the first seal structure is integrally formed with the first glass, and / or
[0016] The second seal structure is integrally formed with the second glass.
[0017] In a second aspect, the utility model further provides a photovoltaic module, including frame and photovoltaic module body, the frame is set to the photovoltaic module body outer surface, the photovoltaic module body includes the front plate, upper layer glue film, cell piece, lower layer glue film and back plate that are sequentially arranged from top to bottom, be equipped with junction box on the back plate, the junction box with cell piece electricity is connected, its characterized in that, the front plate and the back plate adopt any one of the double-layer glass packaging structure described above.
[0018] As can be understood by those skilled in the art, the technical scheme of the utility model provides a double-layer glass packaging structure, the double-layer glass packaging structure comprises two pieces of first glass and second glass which are stacked, and the opposite edges of the first glass and the second glass are respectively provided with first sealing structures and second sealing structures, the first sealing structures and the second sealing structures can cooperate with each other to seal the edges of the first glass and the second glass. When the first glass and the second glass are pressed together, the first sealing structures and the second sealing structures will contact each other and tightly combine. This tight combination can effectively prevent external air, moisture and other impurities from entering the space between the double-layer glass, significantly improve the sealing performance of the double-layer glass structure, and thus maintain the dryness and cleanliness of the inside. At the same time, the sealing structure can also provide a certain structural strength, so that the double-layer glass structure is more stable and durable. BRIEF DESCRIPTION OF DRAWINGS
[0019] The preferred embodiments of the utility model will be described below in conjunction with the accompanying drawings, in which:
[0020] Figure 1 is a schematic view of the double-layer glass packaging structure of the utility model;
[0021] Figure 2 is a structural schematic view of the photovoltaic module of the utility model.
[0022] LIST OF REFERENCE NUMERALS
[0023] 1, first glass; 11, first sealing structure; 111, first protrusion; 112, first groove;
[0024] 2, second glass; 21, second sealing structure; 211, second protrusion; 212, second groove;
[0025] 3, sealing glue; 4, upper layer glue film; 5, battery piece; 6, lower layer glue film. DETAILED DESCRIPTION
[0026] The preferred embodiments of the utility model will be described below in conjunction with the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model. For example, although the following embodiments are introduced in conjunction with the photovoltaic module, the double-layer glass packaging structure provided by the utility model is also applicable to other products which need to solve the problem of poor sealing between double-layer glass.
[0027] It should be noted that in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.
[0028] Based on the poor sealing performance between the two pieces of glass of the double-glass photovoltaic module pointed out in the background art, the present utility model provides a double-layer glass packaging structure, which aims to solve the problem of poor sealing performance between the two pieces of glass of the double-glass photovoltaic module by arranging sealing structures at the edges of the two pieces of glass, which cooperate with each other to effectively solve the problem of poor sealing performance between the two pieces of glass of the double-glass photovoltaic module.
[0029] As shown in Figure 1 The present utility model provides a double-layer glass packaging structure, which includes two pieces of first glass 1 and second glass 2 stacked together, and first sealing structure 11 and second sealing structure 21 are arranged at the edges of the opposite sides of the first glass 1 and the second glass 2, respectively. The first sealing structure 11 and the second sealing structure 21 can cooperate with each other to seal the edges of the first glass 1 and the second glass 2.
[0030] The first glass 1 and the second glass 2 of the present utility model are respectively provided with first sealing structure 11 and second sealing structure 21 at the edges of their opposite sides (i.e. the sides facing each other). These two sealing structures are designed in shape, size and material to match and cooperate with each other, so as to ensure that when they are in contact, a continuous and tight sealing line or sealing surface can be formed.
[0031] When the first glass 1 and the second glass 2 are pressed together by some means (such as mechanical pressure, heat pressing, etc.), the first sealing structure 11 and the second sealing structure 21 will come into contact and tightly bond with each other. This tight bonding can effectively prevent external air, moisture and other impurities from entering the space between the double-layer glass, significantly improving the sealing performance of the double-layer glass structure, thereby maintaining the dryness and cleanliness of its interior. At the same time, this sealing structure can also provide certain structural strength, making the double-layer glass structure more stable and durable.
[0032] In addition, traditionally, a double-glass module needs to be fitted with a protective frame tool during the lamination process to protect the edges of the module. However, such tool not only increases the production cost, but also may affect the production efficiency. The first sealing structure 11 and the second sealing structure 21 of the present utility model cooperate with each other to enhance the strength and stability of the edges, making it possible to cancel the lamination protective frame tool, thereby helping to reduce the personnel allocation and equipment investment on the production line. This not only reduces the production cost, but also improves the flexibility and efficiency of the production line.
[0033] Preferably, the width of the first sealing structure 11 and the second sealing structure 21 is 10mm-20mm.
[0034] The first sealing structure 11 and the second sealing structure 21 with a width in the range of 10mm-20mm can provide sufficient contact area to ensure that the edge portion between the first glass 1 and the second glass 2 is tightly sealed. This tight sealing effect can effectively prevent external air, moisture and other impurities from entering the space between the double-layer glass, achieving the purpose of prolonging the water vapor penetration distance, thereby maintaining the dryness and cleanliness of the interior.
[0035] Preferably, the first sealing structure 11 is integrally formed with the first glass 1, and the second sealing structure 21 is integrally formed with the second glass 2.
[0036] The first sealing structure 11 is integrally formed with the first glass 1, and the second sealing structure 21 is integrally formed with the second glass 2, which can enhance the overall stability of the double-layer glass structure, making the first sealing structure 11 and the second sealing structure 21 more capable of withstanding external pressure and impact. In addition, this design can also reduce the problems of deformation, cracking and other problems caused by unstable structure, ensure the tight combination between the sealing material and the glass, reduce the gap and leakage problems caused by material mismatch or improper process, thereby improving the sealing performance and durability of the double-layer glass structure.
[0037] Preferably, as shown in Figure 1 the sealing glue 3 is also provided between the first sealing structure 11 and the second sealing structure 21.
[0038] The sealing glue 3 can fill the small gap between the first sealing structure 11 and the second sealing structure 21, thereby further enhancing the sealing performance of the double-layer glass structure. In addition, since the width of the first sealing structure 11 and the second sealing structure 21 in the embodiment is 10mm-20mm, the effective width of the sealing glue 3 can also be guaranteed, which means that moisture needs to penetrate into the interior of the assembly through a longer path, thereby further improving the waterproof capability.
[0039] When the first glass 1 and the second glass 2 are laminated, the sealing glue 3 may be deformed due to extrusion, and sometimes even pierced, resulting in waterproof failure. The first sealing structure 11 and the second sealing structure 21 of the utility model can provide additional support and buffer, effectively preventing the sealing glue 3 from being pierced after being extruded during the lamination process, thereby maintaining the integrity of the sealing glue 3 and further improving the sealing performance between the first glass 1 and the second glass 2.
[0040] Preferably, the sealing glue 3 is silicone glue or butyl glue.
[0041] The silicone adhesive has excellent weather resistance, UV radiation resistance, ozone resistance, and chemical corrosion resistance. It can maintain stable performance in a wide temperature range (-60℃ to +200℃). In addition, the silicone adhesive also has good elasticity, which can absorb and relieve stress caused by factors such as temperature changes and wind. Thus, the service life of the double-glazing structure is extended.
[0042] The butyl adhesive has excellent air and water tightness, which can effectively prevent air and moisture from entering the space between the double glazing. It also has good aging resistance and chemical corrosion resistance, and can maintain stable performance in a wide temperature range (-40℃ to +80℃). In addition, the butyl adhesive has strong adhesion, which can firmly adhere between the first glass 1 and the second glass 2.
[0043] It should be noted that the selection type of the sealing adhesive 3 needs to be adaptively selected according to the specific application scene and requirements of the double-glazing packaging structure, for example, the sealing adhesive 3 can also be polyurethane adhesive or other types, and the specific type of the sealing adhesive 3 is not limited in the utility model.
[0044] Preferably, the first sealing structure 11 is a first groove provided on the first glass 1, and the second sealing structure 21 is a second groove provided on the second glass 2, and the first groove and the second groove can be engaged with each other.
[0045] When the first glass 1 and the second glass 2 are stacked together, the first groove and the second groove will contact and engage with each other, so that the first glass 1 and the second glass 2 can form a tight and continuous sealing line or sealing surface when in contact. Through this engagement mechanism, the edge part between the first glass 1 and the second glass 2 can be effectively sealed, thereby not only preventing external air, moisture and other impurities from entering the space between the double glazing, but also providing certain structural strength. When subjected to external force, the first glass 1 and the second glass 2 can maintain better stability and are not easy to deform or be damaged, so that the double-glazing structure is more stable and durable.
[0046] Preferably, as shown in Figure 1 The first groove includes a plurality of first protrusions 111 and first grooves 112 arranged in sequence and at intervals, and the second groove includes a plurality of second protrusions 211 and second grooves 212 arranged in sequence and at intervals. The plurality of first protrusions 111 and the plurality of second grooves 212 are matched and connected one by one, and the plurality of second protrusions 211 and the plurality of first grooves 112 are matched and connected one by one.
[0047] When the first glass 1 and the second glass 2 are stacked together, the first protrusions 111 in the first texture can be engaged into the second recesses 212 in the second texture, while the second protrusions 211 in the second texture can also be engaged into the first recesses 112 in the first texture. This engagement mechanism can ensure that the edge portions between the first glass 1 and the second glass 2 are tightly sealed.
[0048] Preferably, the height of the first protrusions 111 is the same as the height of the second protrusions 211, the depth of the first recesses 112 is the same as the depth of the second recesses 212, and the height of the first protrusions 111 is greater than the depth of the second recesses 212, so as to form a cell 5 mounting space between the first glass 1 and the second glass 2.
[0049] The height of the first protrusions 111 is the same as the height of the second protrusions 211, which ensures that the two glasses (the first glass 1 and the second glass 2) have a consistent support height on the contact surface, guarantees the consistency of the thickness of the component edge, and also helps to maintain the overall flatness and stability of the double-layer glass structure. The depth of the first recesses 112 is the same as the depth of the second recesses 212, which helps to form a uniform and consistent gap between the two glasses, providing a basis for the creation of the cell 5 mounting space.
[0050] The height of the first protrusions 111 is greater than the depth of the second recesses 212, through this design, when the first glass 1 and the second glass 2 are engaged together by the protrusions and recesses, an additional space will be formed between the two glasses, which can be used to install the cell 5 without additional processing or modification, reducing the manufacturing cost and time.
[0051] It should be noted that the height of the first protrusions 111 and the second protrusions 211 can be flexibly set according to the thickness requirements of the double-layer glass. By adjusting the height of the first protrusions 111 and the second protrusions 211, it can be ensured that the two glasses maintain a proper gap when engaged, thereby adapting to glasses of different thicknesses. Exemplarily, when manufacturing the double-layer glass, the height of the first protrusions 111 and the second protrusions 211 can be changed by adjusting the design of the mold, which includes changing the cavity depth of the mold, adjusting the shape and size of the protrusions, etc.
[0052] Preferably, as shown in Figure 1 the first protrusions 111 are trapezoidal in shape, and the second protrusions 211 are trapezoidal in shape.
[0053] The design of the trapezoidal protrusions allows the protruding parts to better disperse stress when subjected to external forces, thereby enhancing the overall stability of the double-layer glass structure. This design helps to reduce the risk of deformation or damage caused by stress concentration, improving the durability of the structure. In addition, the trapezoidal shape of the protrusions is relatively simple and regular, facilitating precise control during manufacturing and processing. At the same time, this design also helps to simplify the installation process of the battery sheet 5, improving construction efficiency and quality.
[0054] It should be noted that in other embodiments, the shapes of the first protrusions 111 and the second protrusions 211 can also be rectangular, inverted triangular, etc., as long as they can provide sufficient support force to prevent the double-layer glass structure from deforming or being damaged when subjected to external forces and forming a tight sealing structure to prevent external air, moisture and other impurities from entering the battery sheet 5 installation space. The specific shape of the first protrusions 111 and the second protrusions 211 is not limited in the present application.
[0055] In addition, the present application also provides a photovoltaic module, which comprises a frame (not shown in the figure) and a photovoltaic module body. The frame is sleeved on the outer surface of the photovoltaic module body. The photovoltaic module body comprises a front plate, an upper layer of adhesive film 4, a battery sheet 5, a lower layer of adhesive film 6 and a back plate arranged in order from top to bottom. The back plate is provided with a junction box (not shown in the figure), and the junction box is electrically connected with the battery sheet 5. The front plate and the back plate adopt the double-layer glass packaging structure of any one of the above embodiments. In one or more embodiments, the front plate is the first glass 1 in the double-layer glass packaging structure, and the back plate is the second glass 2 in the double-layer glass packaging structure. Alternatively, the front plate is the second glass 2 in the double-layer glass packaging structure, and the back plate is the first glass 1 in the double-layer glass packaging structure.
[0056] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without deviating from the principles of the present application, those skilled in the art can make equivalent changes or replacements to related technical features, and the technical scheme after these changes or replacements will fall within the protection scope of the present application.
Claims
1. A double-layer glass encapsulation structure, characterized in that, It includes two stacked pieces of first glass (1) and second glass (2). A first sealing structure (11) and a second sealing structure (21) are respectively provided on the opposite edges of the first glass (1) and the second glass (2). The first sealing structure (11) and the second sealing structure (21) can cooperate with each other to seal the edges of the first glass (1) and the second glass (2).
2. The double-layer glass encapsulation structure according to claim 1, characterized in that, The first sealing structure (11) is a first texture provided on the first glass (1), and the second sealing structure (21) is a second texture provided on the second glass (2). The first texture and the second texture can interlock with each other.
3. The double-layer glass encapsulation structure according to claim 2, characterized in that, The first texture includes a plurality of first protrusions (111) and first grooves (112) arranged in sequence at intervals. The second texture includes a plurality of second protrusions (211) and second grooves (212) arranged in sequence at intervals. The plurality of first protrusions (111) and the plurality of second grooves (212) engage and lock in place one by one. The plurality of second protrusions (211) and the plurality of first grooves (112) engage and lock in place one by one.
4. The double-layer glass encapsulation structure according to claim 3, characterized in that, The height of the first protrusion (111) is the same as the height of the second protrusion (211), the depth of the first groove (112) is the same as the depth of the second groove (212), and the height of the first protrusion (111) is greater than the depth of the second groove (212) to form a battery cell (5) mounting space between the first glass (1) and the second glass (2).
5. The double-layer glass encapsulation structure according to claim 3, characterized in that, The first protrusion (111) is trapezoidal in shape, and / or The second protrusion (211) is trapezoidal in shape.
6. The double-layer glass encapsulation structure according to claim 1, characterized in that, A sealant (3) is also provided between the first sealing structure (11) and the second sealing structure (21).
7. The double-layer glass encapsulation structure according to claim 6, characterized in that, The sealant (3) is silicone sealant or butyl sealant.
8. The double-glass encapsulation structure according to any one of claims 1 to 7, characterized in that, The width of the first sealing structure (11) and the second sealing structure (21) is 10mm to 20mm.
9. The double-glass encapsulation structure according to any one of claims 1 to 7, characterized in that, The first sealing structure (11) is integrally formed with the first glass (1), and / or The second sealing structure (21) is integrally formed with the second glass (2).
10. A photovoltaic module, comprising a frame and a photovoltaic module body, the frame being fitted onto the outer surface of the photovoltaic module body, the photovoltaic module body comprising, from top to bottom, a front panel, an upper encapsulant film (4), solar cells (5), a lower encapsulant film (6), and a back panel, wherein a junction box is provided on the back panel, the junction box being electrically connected to the solar cells (5), characterized in that, The front panel and the back panel adopt the double-glass encapsulation structure described in any one of claims 1 to 9.