Sectional material, photovoltaic module frame and photovoltaic module

Abstract

The utility model discloses a section bar, a photovoltaic assembly frame and a photovoltaic assembly, and belongs to the technical field of photovoltaic assemblies. The plurality of profiles are connected to form a loading space, and the loading space is used for loading the laminated piece; the laminated part is provided with a step part protruding outwards, a clamping groove is formed in the side, located in the loading space, of the sectional material, and the step part is clamped with the clamping groove. The section bar is the section bar provided by the utility model. The photovoltaic module frame comprises a plurality of the above profiles, the plurality of profiles are connected to form a loading space, and the loading space is used for loading a laminated member. According to the utility model, the section bar forms the loading space, the step part of the laminated piece is matched with the clamping groove of the section bar, the structural adhesive can be added into the step part and the clamping groove for bonding, the bonding area of the structural adhesive is larger, the bonding force of the structural adhesive between the laminated piece and the section bar can be improved, and the structural reliability and the stress performance of the photovoltaic module are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic modules, and specifically, to a profile, a frame of a photovoltaic module, and a photovoltaic module. Background Art

[0002] Generally, a photovoltaic module is encapsulated by a frame structure, a laminate, etc., and the frame structure plays a role in fixing and supporting the entire photovoltaic module. Currently, on the market, the surface of the frames of most photovoltaic modules is higher than that of the photovoltaic modules. After long-term use, it is easy to cause dust accumulation at the position of the front frame. After dust accumulation, it will block the surface of the photovoltaic module, which will not only affect the front power generation efficiency of the photovoltaic module, but also cause hot spot phenomenon, leading to safety hazards such as overheating of the photovoltaic module.

[0003] To solve the problem of dust accumulation, some photovoltaic modules adopt frameless A-side frames. For example, the Chinese patent document with the publication number CN218449994U discloses a frame of a photovoltaic module and a photovoltaic module. The frame of the photovoltaic module includes: side plates, a bottom plate and a baffle fixed to the first side of the side plates. The bottom plate is used for adhesively connecting with the bottom surface of the photovoltaic laminate, and the baffle is used for adhesively connecting with the side wall of the photovoltaic laminate; when the bottom plate is adhesively connected with the bottom surface of the photovoltaic laminate, the surface of the baffle facing away from the bottom plate is lower than or flush with the light-facing surface of the photovoltaic laminate.

[0004] Among them, the surface of the baffle facing away from the bottom plate being lower than or flush with the light-facing surface of the photovoltaic laminate forms a frameless A-side frame. However, usually, structural adhesive is used for bonding between the frameless A-side frame and the photovoltaic laminate member. Insufficient adhesive force of the structural adhesive will affect the structural reliability and mechanical properties of the photovoltaic module. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a profile, a frame of a photovoltaic module, and a photovoltaic module, so as to solve the problem that in the prior art, structural adhesive is usually used for bonding between the frameless A-side frame and the photovoltaic laminate member, and insufficient adhesive force of the structural adhesive will affect the structural reliability and mechanical properties of the photovoltaic module.

[0006] To achieve the above purpose, the utility model provides a photovoltaic module, including

[0007] a laminate;

[0008] a plurality of profiles, and the plurality of profiles are connected to form a loading space for loading the laminate;

[0009] The laminate is provided with a stepped portion protruding outward, and the profile located on one side of the loading space is provided with a card slot, and the stepped portion is engaged with the card slot.

[0010] Further, the laminate includes a front glass, an adhesive film joint, and a back plate. The front glass and the back plate are connected through the adhesive film joint. The area of the back plate is larger than that of the front glass, and the edge of the back plate extends beyond the edge of the front glass to form the stepped portion.

[0011] Further, the laminate includes a front glass, an adhesive film joint, and a back plate. The front glass and the back plate are connected through the adhesive film joint. The area of the front glass is larger than that of the back plate, and the edge of the front glass extends beyond the edge of the back plate to form the stepped portion.

[0012] Further, the sun-facing end of the profile is lower than or flush with the plane where the front glass is located.

[0013] Further, the profile includes a bottom support and a side support. The side support is connected to the bottom support. A stepped surface is formed at the position of the side support close to the card slot, and the stepped surface supports the side surface of the laminate.

[0014] Further, a first glue overflow groove is provided at the position of the stepped surface of the side support.

[0015] Further, a second glue overflow groove and a third glue overflow groove are provided in the card slot. The second glue overflow groove is located in the side direction of the stepped portion, and the third glue overflow groove is located in the bottom direction of the stepped portion.

[0016] Further, a cavity is formed at the position of the bottom support of the profile, and a reinforcing rib for supporting the cavity is provided in the cavity.

[0017] The present invention also provides a profile, and the profile is the above-mentioned profile.

[0018] The present invention also provides a photovoltaic module frame, which includes a plurality of the above-mentioned profiles. The plurality of profiles are connected to form a loading space for loading the laminate.

[0019] Adopting the technical solution provided by the present invention, compared with the existing well-known technologies, the following beneficial effects are achieved:

[0020] In a photovoltaic module of the present invention, the loading space formed by a plurality of profiles is used to load the laminate. The stepped portion protruding outward of the laminate can be engaged with the card slot of the profile to form an assembly relationship and is not easily disengaged. On the other hand, the cooperation relationship between the stepped portion and the card slot increases the contact area between the laminate and the profile. Structural glue can be added in the stepped portion and the card slot for bonding. The bonding area of the structural glue is larger, which can improve the bonding force of the structural glue between the laminate and the profile and improve the structural reliability and mechanical properties of the photovoltaic module.

[0021] Obviously, the elements or features described in the above single embodiment can be used alone or in combination in other embodiments. Description of the Drawings

[0022] In the drawings, the dimensions and ratios do not represent the dimensions and ratios of the actual product. The drawings are merely illustrative, and for clarity, some non-essential elements or features are omitted.

[0023] Figure 1 is a schematic structural diagram of a photovoltaic module in an embodiment of the present invention.

[0024] Description of the Reference Numerals

[0025] 100, laminate; 110, front glass; 120, film bonding part; 130, backplane; 140, step part; 200, profile; 210, bottom support; 220, side support; 230, card slot; 231, second glue overflow groove; 232, third glue overflow groove; 240, first glue overflow groove; 250, cavity; 260, reinforcing rib. Detailed Embodiment

[0026] Next, the present invention will be described in detail with reference to the drawings. What is described here is only the preferred embodiment of the present invention, and those skilled in the art can think of other ways to implement the present invention based on the preferred embodiment, and other ways also fall within the scope of the present invention.

[0027] Embodiment 1

[0028] Please refer to Figure 1 , this embodiment provides a photovoltaic module, including a laminate 100; a plurality of profiles 200, and the plurality of profiles 200 are connected to form a loading space for loading the laminate 100; the laminate 100 is provided with a step part 140 protruding outward, and the profile 200 is provided with a card slot 230 on one side of the loading space, and the step part 140 is engaged with the card slot 230. The engagement between the two forms an assembly relationship, making it difficult for the laminate 100 to disengage from the loading space. On the other hand, the cooperation relationship between the step part 140 and the card slot 230 increases the contact area between the laminate 100 and the profile 200, and structural adhesive can be added in the step part 140 and the card slot 230 for bonding. The bonding area of the structural adhesive is larger, which can improve the bonding force of the structural adhesive between the laminate 100 and the profile 200, and improve the structural reliability and mechanical properties of the photovoltaic module.

[0029] Specifically, in this embodiment, as Figure 1As shown, the laminate 100 includes a front glass 110, an encapsulant bonding part 120, and a backsheet 130. The front glass 110 and the backsheet 130 are connected through the encapsulant bonding part 120. The area of the backsheet 130 is larger than that of the front glass 110, and the edge of the backsheet 130 extends beyond the edge of the front glass 110 to form a step part 140. The edge of the backsheet 130 is engaged with the card slot 230. The front glass 110 and the backsheet 130 are connected through the encapsulant bonding part 120. As a whole, the laminate 100 can be effectively connected to the loading space formed by the profile 200, increasing the connection stability between the laminate 100 and the profile 200. It should be noted that the encapsulant bonding part 120 includes solar cells, which are used for photoelectric conversion to generate electricity. The backsheet 130 can adopt a back glass structure or other material structures. In this embodiment, the backsheet 130 is a back glass structure.

[0030] Furthermore, in this embodiment, the sun-facing end of the profile 200 is lower than or flush with the plane where the front glass 110 is located. The sun-facing end of the profile 200 will not block the front glass 110, forming a photovoltaic frame structure without an A side. The area of the front glass 110 can be fully utilized, which helps to increase the power generation of the photovoltaic module. Moreover, this photovoltaic frame structure without an A side can reduce the dust accumulation on the surface area of the front glass 110, further avoiding the blockage of the front glass 110 and improving the power generation efficiency.

[0031] To match the structure of the laminate 100, the structure of the profile 200 has also been correspondingly improved. In this embodiment, please continue to refer to Figure 1 , the profile 200 includes a bottom support 210 and a side support 220. The side support 220 is connected to the bottom support 210. The width of the bottom support 210 does not exceed the width of the side support 220, and does not block the backsheet 130. The backsheet 130 is a back glass structure, increasing the power generation on the back of the photovoltaic module. The outer side surface of the side support 210 is an arc surface structure, and the arc surface bends towards the laminate 100. A stepped surface 221 is formed at the position of the side support 220 close to the card slot 230. The stepped surface 221 supports the side surface of the laminate 100, improving the stability of the side support for the laminate 100. A first glue overflow groove 240 is provided at the position of the stepped surface 221 of the side support 220. When gluing between the stepped surface 221 and the side surface of the laminate 100, the risk of the adhesive overflowing onto the surface of the front glass 110 can be reduced.

[0032] In this embodiment, in addition to engaging with the step portion 140 of the laminate 100, an adhesive needs to be added between the card slot 230 and the laminate 100. Therefore, a second overflow groove 231 and a third overflow groove 232 are provided in the card slot 230. The second overflow groove 231 is located in the side direction of the step portion 140, and the third overflow groove 232 is located in the bottom direction of the step portion 140. The second overflow groove 231 and the third overflow groove 232 provide more space for the adhesive, which can prevent the adhesive from overflowing and contaminating the profile 200 or the surface of the back plate 130. It should be noted that the adhesive and the bonding adhesive in this embodiment are both silicone.

[0033] A plurality of profiles 200 form a loading space through splicing. In this embodiment, a cavity 250 is provided at the position of the bottom support 210 of the profile 200, and the cavities 250 of the respective profiles 200 are connected by corner codes. A reinforcing rib 260 for supporting the cavity 250 is provided in the cavity 250. The reinforcing rib 260 can improve the load strength of the profile 200 and reduce the risk of deformation of the profile 200.

[0034] Embodiment 2

[0035] Different from the first embodiment, in this embodiment, the laminate 100 includes a front glass 110, a film bonding portion 120, and a back plate 130. The front glass 110 and the back plate 130 are connected through the film bonding portion 120; the area of the front glass 110 is larger than the area of the back plate 130, and the edge of the front glass 110 extends beyond the edge of the back plate 130 to form a step portion 140. At this time, the edge of the front glass 110 cooperates with the card slot 230 of the profile 200, so that the laminate 100 and the profile 200 are stably assembled.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0037] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0038] The protection scope of the present utility model is only defined by the claims. Benefiting from the teachings of the present utility model, those skilled in the art can easily recognize that alternative structures of the structures disclosed in the present utility model can be used as feasible alternative embodiments, and the embodiments disclosed in the present utility model can be combined to produce new embodiments, which also fall within the scope of the appended claims.

Claims

1. A photovoltaic module, comprising: A laminate (100); A plurality of profiles (200), wherein the plurality of profiles (200) are connected to form a loading space, and the loading space is used to load the laminate (100); It is characterized in that The laminate (100) is provided with a step portion (140) protruding outward, and the profile (200) is provided with a slot (230) on one side of the loading space, and the step portion (140) is engaged with the slot (230).

2. A photovoltaic module according to claim 1, characterized in that: The laminate (100) comprises a front glass (110), an adhesive film bonding portion (120), and a back plate (130); the front glass (110) and the back plate (130) are connected via the adhesive film bonding portion (120); the area of ​​the back plate (130) is larger than the area of ​​the front glass (110), and the edge of the back plate (130) exceeds the edge of the front glass (110) to form the step portion (140).

3. A photovoltaic module according to claim 1, characterized in that: The laminate (100) comprises a front glass (110), an adhesive film bonding portion (120), and a back plate (130), wherein the front glass (110) and the back plate (130) are connected via the adhesive film bonding portion (120); the area of ​​the front glass (110) is larger than the area of ​​the back plate (130), and the edge of the front glass (110) exceeds the edge of the back plate (130) to form the step portion (140).

4. A photovoltaic module according to claim 2, characterized in that: The end of the profile (200) facing the sun is lower than or flush with the plane where the front glass (110) is located.

5. A photovoltaic module according to claim 2, characterized in that: The profile (200) includes a bottom support (210) and a side support (220), wherein the side support (220) is connected to the bottom support (210); a stepped surface (221) is formed at a position of the side support (220) close to the slot (230), and the stepped surface (221) is supported on the side of the laminate (100).

6. A photovoltaic module according to claim 5, characterized in that: The side support (220) is provided with a first glue overflow groove (240) at the position of the stepped surface (221).

7. A photovoltaic module according to claim 1, characterized in that: A second glue overflow groove (231) and a third glue overflow groove (232) are provided in the card slot (230); the second glue overflow groove (231) is located in the side direction of the step portion (140), and the third glue overflow groove (232) is located in the bottom direction of the step portion (140).

8. A photovoltaic module according to claim 5, characterized in that: The profile (200) is provided with a cavity (250) at the position of the bottom support (210), and a reinforcing rib (260) for supporting the cavity (250) is arranged in the cavity (250).

9. A profile, characterized in that: The profile (200) is the profile (200) according to any one of claims 1 to 8.

10. A photovoltaic module frame, characterized in that: The invention comprises a plurality of profiles (200) according to claim 9, wherein the plurality of profiles (200) are connected to form a loading space, and the loading space is used for loading the laminate (100).

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