Photovoltaic module

Abstract

The photovoltaic module comprises a frame and a battery structure, the battery structure comprises glass, a battery string and an adhesive film, the glass is arranged on the frame, the adhesive film comprises an adhesive film main body and an overflow part, the adhesive film main body is arranged between the battery string and the glass, and the overflow part is arranged between the battery string and the glass. The overflow part overflows from the space between the battery string and the glass, is connected to the periphery of the adhesive film main body and is arranged between the glass and the frame. The adhesive film main body is arranged between the battery string and the glass, and the overflow part is arranged between the glass and the frame, so that the battery string, the glass and the frame can be connected into a whole, a laminated enclosure frame and a laminated angle bead can be omitted, an edge cutting procedure can also be omitted, the installation steps of the photovoltaic module can be saved, materials are saved, and the production cost is reduced. Therefore, the cost is reduced, and the productivity of the photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic component. Background Art

[0002] At present, the battery structure in photovoltaic modules requires the use of laminated frames or laminated corner guards to ensure the thickness of the battery structure. This will increase the material and thus the cost. In addition, the film encapsulating the battery structure needs to be trimmed, which is not conducive to the installation of the photovoltaic module and will increase the process of the photovoltaic module. In addition, one side of the battery structure will be raised, resulting in dust accumulation, which will affect the performance of the photovoltaic module. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a photovoltaic module that can omit the laminated frame and laminated corner guards, and can also omit the edge trimming process, thereby reducing the number of photovoltaic module installation steps and materials, thereby reducing costs and improving the productivity of the photovoltaic module.

[0004] According to the photovoltaic module of the present invention, it includes: a frame and a battery structure, the battery structure includes: glass, a battery string and a film, the glass is arranged on the frame, the film includes: a film body and an overflow portion, the film body is arranged between the battery string and the glass, the overflow portion overflows from between the battery string and the glass and is connected to the outer periphery of the film body, and the overflow portion is arranged between the glass and the frame.

[0005] According to the photovoltaic module of the present invention, by setting a film body between the battery string and the glass, and setting an overflow portion between the glass and the frame, the battery string, the glass and the frame can be connected into a whole. Not only can the laminated frame and the laminated corner guard be omitted, but the edge trimming process can also be omitted, thereby saving the installation steps of the photovoltaic module and saving materials, thereby reducing costs and improving the productivity of the photovoltaic module.

[0006] In some examples of the present invention, the frame includes: a side frame and a bottom frame, the side frame is arranged at the outer edges of the glass and the battery string, the bottom frame is arranged on the surface of the glass, one side of the bottom frame is connected to the side frame, and the other side extends toward the center of the glass; wherein the overflow portion is arranged between the side frame and the glass, and / or the overflow portion is arranged between the bottom frame and the glass.

[0007] In some examples of the present invention, the overflow portion exceeds an edge of the bottom frame toward the center of the glass.

[0008] In some examples of the present invention, the top surface of the side frame does not exceed the front surface of the battery structure.

[0009] In some examples of the present invention, the glass includes: front glass and back glass, the top surface of the side frame does not exceed the front surface of the front glass, the battery string is arranged between the front glass and the back glass, and the back glass is arranged on the bottom frame.

[0010] In some examples of the present invention, the thickness of the side frame and the bottom frame are both d1, and d1 satisfies the relationship: 1mm≤d1≤1.5mm.

[0011] In some examples of the present invention, the width of the bottom frame is L, and L satisfies the relationship: 8mm≤L≤12mm.

[0012] In some examples of the present invention, the thickness of the battery structure is d2, and d2 satisfies the relationship: 4.5 mm ≤ d2 ≤ 5 mm.

[0013] In some examples of the present invention, the thickness of the overflow portion is d3, and d3 satisfies the relationship: 1mm≤d3≤1.5mm.

[0014] In some examples of the present invention, the frame is an aluminum frame.

[0015] Compared with the existing technology, the utility model adopts a method of setting a film body between the battery string and the glass, and setting an overflow part between the glass and the frame, so that the battery string, glass and frame can be connected into a whole. Not only can the laminated frame and laminated corner guard be omitted, but the edge trimming process can also be omitted, thereby saving the installation steps of the photovoltaic module and saving materials, thereby reducing costs and improving the productivity of the photovoltaic module.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic structural diagram of a photovoltaic assembly according to an embodiment of the present utility model;

[0019] Figure 2 is a cross-sectional view of a photovoltaic module according to an embodiment of the present utility model;

[0020] Figure 3It is a partial cross-sectional view of a photovoltaic module according to an embodiment of the present utility model.

[0021] Reference numerals:

[0022] 100. Photovoltaic modules;

[0023] 10. Frame; 11. Side frame; 12. Bottom frame; 20. Battery structure; 21. Glass; 22. Battery string; 23. Adhesive film; 24. Adhesive film body; 25. Overflow part; 26. Front glass; 27. Back glass; 30. Mounting bracket. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0025] Reference below Figure 1-Figure 3 A photovoltaic assembly 100 according to an embodiment of the present invention is described.

[0026] like Figure 1-Figure 3 As shown, according to the photovoltaic module 100 of the present invention, it includes: a frame 10 and a battery structure 20, the battery structure 20 includes: glass 21, a battery string 22 and a film 23, the glass 21 is arranged on the frame 10, the film 23 includes: a film body 24 and an overflow portion 25, the film body 24 is arranged between the battery string 22 and the glass 21, the overflow portion 25 overflows from between the battery string 22 and the glass 21 and is connected to the outer periphery of the film body 24, and the overflow portion 25 is arranged between the glass 21 and the frame 10.

[0027] It can be understood that the frame 10 and the battery structure 20 constitute the main structure of the photovoltaic module 100, the glass 21, the battery string 22 and the film 23 constitute the main body of the battery structure 20, the frame 10 can limit the battery structure 20, so as to facilitate the battery structure 20 to be set on the frame 10, the frame 10 can protect the battery structure 20, and thus extend the service life of the battery structure 20, the glass 21 is located on the frame 10, so that the frame 10 can provide installation space for the glass 21, and the battery string 22 is located between the glass 21, so that the battery string 22 can provide voltage and current for the photovoltaic module 100.

[0028] Among them, the adhesive film body 24 and the overflow portion 25 constitute the main structure of the adhesive film 23. The adhesive film body 24 is located between the battery string 22 and the glass 21, so that the battery string 22 and the glass 21 can be tightly connected, thereby facilitating the battery string 22 to provide voltage and current. The overflow portion 25 overflows from between the battery string 22 and the glass 21, that is, after the adhesive film body 24 adheres to the battery string 22 and the glass 21, the remaining part forms the overflow portion 25. The overflow portion 25 overflows relative to the battery string 22 and the glass 21, and then the overflow portion 25 is located at the outer periphery of the adhesive film body 24. The glass 21 is located on the frame 10, and the overflow portion 25 is located between the glass 21 and the frame 10, so that the glass 21 and the frame 10 can be connected. Not only can the laminated frame and the laminated corner guard be omitted, but the edge trimming process can also be omitted, thereby saving the installation steps of the photovoltaic module 100 and saving materials, thereby reducing costs and improving the productivity of the photovoltaic module 100. For example, the thickness of the battery structure 20 and the frame 10 is changed from 30 mm to 7 mm, so that more battery structures 20 can be packaged, thereby improving the performance of the photovoltaic module 100.

[0029] Therefore, by setting the film body 24 between the battery string 22 and the glass 21, and setting the overflow portion 25 between the glass 21 and the frame 10, the battery string 22, the glass 21 and the frame 10 can be connected into a whole. Not only can the laminated frame and the laminated corner guard be omitted, but the edge trimming process can also be omitted, thereby saving the installation steps of the photovoltaic module 100 and saving materials, thereby reducing costs and improving the productivity of the photovoltaic module 100.

[0030] Among them, Figure 1-Figure 3 As shown, the frame 10 includes: a side frame 11 and a bottom frame 12, the side frame 11 is arranged at the outer edge of the glass 21 and the battery string 22, the bottom frame 12 is arranged on the surface of the glass 21, one side of the bottom frame 12 is connected to the side frame 11, and the other side extends toward the center of the glass 21; wherein, the overflow portion 25 is arranged between the side frame 11 and the glass 21, and the overflow portion 25 is arranged between the bottom frame 12 and the glass 21.

[0031] It can be understood that the side frame 11 and the bottom frame 12 constitute the main structure of the frame 10, the side frame 11 is located on the outer peripheral side of the glass 21 and the battery string 22, and the bottom frame 12 is located on the surface of the glass 21, so that the side frame 11 and the bottom frame 12 provide installation space for the glass 21 and the battery string 22, and one side of the bottom frame 12 is connected to the side frame 11, and the other side of the bottom frame 12 extends toward the center of the glass 21, so that the bottom frame 12 and the side frame 11 form an "L"-shaped cross-section, and the side frame 11 and The bottom frame 12 forms a semi-enclosed structure, which makes it easy for the glass 21 to be installed between the side frame 11 and the bottom frame 12. The overflow portion 25 is located between the side frame 11 and the glass 21, and the overflow portion 25 is located between the bottom frame 12 and the glass 21, so that the glass 21 and the frame 10 can be connected. Not only can the laminated frame and the laminated corner guard be omitted, but the edge trimming process can also be omitted, thereby saving installation steps of the photovoltaic module 100 and saving materials, thereby reducing costs and improving the productivity of the photovoltaic module 100.

[0032] In particular, if Figure 1-Figure 3 As shown, the overflow portion 25 exceeds the edge of one side of the bottom frame 12 toward the center of the glass 21. This arrangement can make the length of the overflow portion 25 exceed the length of the bottom frame 12 toward the center of the glass 21, thereby ensuring that the bottom frame 12 and the glass 21 are both connected to the overflow portion 25, and the part of the overflow portion 25 that exceeds the bottom frame 12 toward the center of the glass 21 can protect the bottom frame 12, thereby avoiding the lack of connected parts between the bottom frame 12 and the glass 21, and further preventing the side of the bottom frame 12 facing the glass 21 from warping relative to the glass 21.

[0033] In addition, if Figure 1-Figure 3 As shown, the top surface of the side frame 11 does not exceed the front surface of the battery structure 20. This arrangement allows the side frame 11 and the glass 21 to be connected through the overflow portion 25, and can also ensure that the glass 21 is in full contact with sunlight, thereby ensuring the photoelectric conversion performance of the photovoltaic module 100, and further improving the performance of the photovoltaic module 100.

[0034] In addition, if Figure 1-Figure 3As shown, the glass 21 includes: a front glass 26 and a back glass 27. The top surface of the side frame 11 does not exceed the front surface of the front glass 26. The battery string 22 is arranged between the front glass 26 and the back glass 27, and the back glass 27 is arranged on the bottom frame 12. It can be understood that the front glass 26 and the back glass 27 constitute the main body of the glass 21. One end of the side frame 11 does not exceed the front surface of the front glass 26, thereby ensuring that the front glass 26 is fully exposed to sunlight. The battery string 22 is located between the front glass 26 and the back glass 27, so that the front glass 26 and the back glass 27 provide installation space for the battery string 22, thereby facilitating the battery string 22 to provide voltage and current. The back glass 27 is connected to the bottom frame 12 through the overflow portion 25, so that the glass 21 and the frame 10 are connected as a whole, thereby ensuring the application of the photovoltaic module 100.

[0035] Alternatively, as Figure 3 As shown, the thickness of the side frame 11 and the bottom frame 12 is d1, and d1 satisfies the relationship: d1 ≥ 1mm. If the thickness of the side frame 11 and the bottom frame 12 is less than 1mm, the strength of the side frame 11 and the bottom frame 12 will be insufficient. If the glass 21 is installed after the side frame 11 and the bottom frame 12, not only will it cause cracks in the side frame 11 and the bottom frame 12, but it will also cause the connection between the glass 21 and the frame 10 to be not firm enough, thereby affecting the application of the photovoltaic module 100. For example, in order to ensure the strength of the side frame 11 and the bottom frame 12, d1 is 1mm, 1.1mm, or 1.2mm. Consider selecting a suitable parameter during the specific design.

[0036] The thickness of the side frames 11 and the bottom frame 12 is d1, which satisfies the relationship: d1 ≤ 1.5 mm. If the thickness of the side frames 11 and the bottom frame 12 is greater than 1.5 mm, this will result in excessive material being used for the side frames 11 and the bottom frame 12, thereby increasing the overall mass of the photovoltaic module 100, which in turn is detrimental to the installation and transportation of the photovoltaic module 100 and the lightweight design of the photovoltaic module 100. For example, to ensure the installation and transportation of the photovoltaic module 100, d1 is 1.5 mm, 1.4 mm, or 1.3 mm. Consider selecting an appropriate parameter during the specific design.

[0037] The thickness of the side frame 11 and the bottom frame 12 are both d1, and d1 satisfies the relationship: 1mm≤d1≤1.5mm. The thickness of the side frame 11 and the bottom frame 12 must be within a reasonable range. This setting can ensure the strength of the bottom frame 12 and the side frame 11, and also facilitate the installation and transportation of the photovoltaic module 100, thereby facilitating the application of the photovoltaic module 100.

[0038] Alternatively, as Figure 3As shown, the width of the bottom frame 12 is L, and L satisfies the relationship: L ≥ 8mm. If the width of the bottom frame 12 is less than 8mm, the bearing area of ​​the bottom frame 12 for the glass 21 will be reduced, which will be detrimental to the connection between the glass 21 and the frame 10, and may lead to instability of the photovoltaic module 100. For example, to ensure the bearing capacity of the frame 10 for the glass 21, L is 8mm, 8.5mm, or 9mm. Consider selecting an appropriate parameter during the specific design.

[0039] The width of the bottom frame 12 is L, where L satisfies the relationship: L ≤ 12 mm. If the width of the bottom frame 12 is greater than 12 mm, this will result in excessive material being used for the bottom frame 12, thereby increasing the overall mass of the photovoltaic module 100, hindering the installation and transportation of the photovoltaic module 100 and hindering the lightweight design of the photovoltaic module 100. For example, to ensure the installation and transportation of the photovoltaic module 100, L is 12 mm, 11.5 mm, or 11 mm. An appropriate parameter should be considered during the specific design.

[0040] The width of the bottom frame 12 is L, which satisfies the relationship: 8 mm ≤ L ≤ 12 mm. The width of the bottom frame 12 should be within a reasonable range. This ensures the bottom frame 12's ability to support the glass 21 and facilitates the installation and transportation of the photovoltaic module 100, thereby facilitating the application of the photovoltaic module 100. For example, L is 9.5 mm, 10 mm, or 10.5 mm. An appropriate parameter should be considered during the specific design.

[0041] Alternatively, as Figure 3 As shown, the thickness of the cell structure 20 is d2, which satisfies the relationship: d2 ≥ 4.5 mm. If the thickness of the cell structure 20 is less than 4.5 mm, the glass 21 will not be thick enough to fully absorb light, thus failing to fully utilize the voltage and current generation capabilities of the cell string 22, and thus failing to guarantee the performance of the photovoltaic module 100. For example, to ensure the performance of the photovoltaic module 100, d2 is 4.5 mm, 4.6 mm, or 4.7 mm. Consider selecting an appropriate parameter during the specific design.

[0042] The thickness of the cell structure 20 is d2, which satisfies the relationship: d2 ≤ 5 mm. If the thickness of the cell structure 20 is greater than 5 mm, this will result in excessive material being used in the cell structure 20, thereby increasing the overall mass of the photovoltaic module 100, hindering the installation and transportation of the photovoltaic module 100 and hindering the lightweight design of the photovoltaic module 100. For example, to ensure the installation and transportation of the photovoltaic module 100, d2 is 5 mm, 4.9 mm, or 4.8 mm. Consider selecting an appropriate parameter during the specific design.

[0043] The thickness of the cell structure 20 is d2, which satisfies the relationship: 4.5 mm ≤ d2 ≤ 5 mm. The thickness of the cell structure 20 should be within a reasonable range to ensure that the cell structure 20 absorbs sufficient light power while facilitating installation and transportation of the photovoltaic module 100, thereby facilitating the application of the photovoltaic module 100. For example, d2 can be 4.5 mm, 4.8 mm, or 5 mm. An appropriate parameter should be considered during the specific design.

[0044] Alternatively, as Figure 3 As shown, the thickness of the overflow portion 25 is d3, which satisfies the relationship: d3 ≥ 1mm. If the thickness of the overflow portion 25 is less than 1mm, gaps may exist between the side frame 11 and the glass 21, as well as between the bottom frame 12 and the glass 21. This may lead to an unstable connection between the glass 21 and the frame 10, which may be detrimental to the application of the photovoltaic module 100. For example, to ensure a stable connection between the frame 10 and the glass 21, d3 is 1mm, 1.1mm, or 1.2mm. An appropriate parameter should be considered during the specific design.

[0045] The thickness of the overflow portion 25 is d3, which satisfies the relationship: d3 ≤ 1.5 mm. If the thickness of the overflow portion 25 is greater than 1.5 mm, the gap between the frame 10 and the glass 21 will be too large, thereby increasing the overall thickness of the photovoltaic module 100, which is detrimental to the lightweight design of the photovoltaic module 100. For example, to ensure the lightweight design of the photovoltaic module 100, d3 is 1.5 mm, 1.4 mm, or 1.3 mm. An appropriate parameter should be considered during the specific design.

[0046] The thickness of the overflow portion 25 is d3, and d3 satisfies the relationship: 1mm≤d3≤1.5mm. The thickness of the overflow portion 25 must be within a reasonable range. This setting can ensure the stability between the glass 21 and the frame 10, and can also achieve a lightweight design of the photovoltaic component 100, thereby facilitating the application of the photovoltaic component 100.

[0047] In particular, the frame 10 is an aluminum frame, which can ensure the high strength of the frame 10, realize the lightweight design of the frame 10, and make the frame 10 corrosion-resistant, thereby ensuring the performance of the photovoltaic module 100 and facilitating the application of the photovoltaic module 100.

[0048] In addition, Figure 3As shown, after the adhesive film 23 is located between the battery string 22 and the glass 21, a heating plate and a heat conducting plate are provided on one side of the front glass 26, so that heat can be transferred to the adhesive film 23. The adhesive film 23 flows when heated, so that the adhesive film body 24 can be filled between the battery string 22 and the glass 21, and the overflow portion 25 can be filled between the glass 21 and the frame 10, thereby making the connection between the glass 21 and the frame 10 more stable, and an installation space is provided in the mounting bracket 30, and the frame 10 is provided in the mounting space, so that the mounting bracket 30 can position the frame 10, thereby facilitating the installation of the photovoltaic module 100, and there are multiple mounting brackets 30, and the multiple mounting brackets 30 are connected in parallel horizontally, and the glass 21 set on each mounting bracket 30 is on the same horizontal plane. This arrangement can make rainwater flow in the same direction through the glass 21, thereby ensuring that the photovoltaic module 100 does not accumulate water, thereby ensuring the performance of the photovoltaic module 100.

[0049] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0050] In the description of the present invention, "first feature" and "second feature" may include one or more of the features. In the description of the present invention, "plurality" means two or more. In the description of the present invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may also include the first and second features not being in direct contact but being in contact via another feature between them. In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0051] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A photovoltaic module (100), characterized in that: include: border (10); A battery structure (20) includes: glass (21), a battery string (22) and a film (23); the glass (21) is arranged on the frame (10); the film (23) includes: a film body (24) and an overflow portion (25); the film body (24) is arranged between the battery string (22) and the glass (21); the overflow portion (25) overflows from between the battery string (22) and the glass (21) and is connected to the periphery of the film body (24); the overflow portion (25) is arranged between the glass (21) and the frame (10).

2. The photovoltaic assembly (100) according to claim 1, characterized in that The frame (10) comprises: A side frame (11), the side frame (11) being arranged on the outer peripheral edge of the glass (21) and the battery string (22); a bottom frame (12), the bottom frame (12) being arranged on the surface of the glass (21), one side of the bottom frame (12) being connected to the side frame (11), and the other side extending toward the center of the glass (21); Wherein, the overflow portion (25) is arranged between the side frame (11) and the glass (21), and / or The overflow portion (25) is arranged between the bottom frame (12) and the glass (21).

3. The photovoltaic module (100) according to claim 2, characterized in that The overflow portion (25) exceeds a side edge of the bottom frame (12) facing the center of the glass (21).

4. The photovoltaic assembly (100) according to claim 2, characterized in that The top surface of the side frame (11) does not exceed the front surface of the battery structure (20).

5. The photovoltaic assembly (100) according to claim 4, characterized in that: The glass (21) comprises: Front plate glass (26), the top surface of the side frame (11) does not exceed the front surface of the front plate glass (26); Back plate glass (27), the battery string (22) is arranged between the front plate glass (26) and the back plate glass (27), and the back plate glass (27) is arranged on the bottom frame (12).

6. The photovoltaic assembly (100) according to claim 2, characterized in that The thickness of the side frame (11) and the bottom frame (12) are both d1, and d1 satisfies the relationship: 1mm≤d1≤1.5mm.

7. The photovoltaic assembly (100) according to claim 2, characterized in that The width of the bottom frame (12) is L, and L satisfies the relationship: 8mm≤L≤12mm.

8. The photovoltaic assembly (100) according to claim 1, characterized in that The thickness of the battery structure (20) is d2, and d2 satisfies the relationship: 4.5 mm ≤ d2 ≤ 5 mm.

9. The photovoltaic assembly (100) according to claim 1, characterized in that The thickness of the overflow portion (25) is d3, and d3 satisfies the relationship: 1mm≤d3≤1.5mm.

10. The photovoltaic assembly (100) according to claim 1, characterized in that The frame (10) is an aluminum frame.

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