Photovoltaic module

Abstract

The photovoltaic module comprises a front cover plate, a rear cover plate, a battery piece layer, a packaging agent layer and a plurality of supporting blocks, the front cover plate and the rear cover plate are transparent pieces, the battery piece layer is located between the front cover plate and the rear cover plate, the packaging agent layer is located between the front cover plate and the rear cover plate and used for wrapping and sealing the battery piece layer, and the supporting blocks are arranged on the front cover plate and the rear cover plate. And the plurality of supporting blocks are arranged on the peripheral side of the battery piece layer along the circumferential direction of the photovoltaic module and are supported between the front cover plate and the rear cover plate. According to the photovoltaic module provided by the utility model, the distance between the front cover plate and the rear cover plate can be kept in the lamination process through the arrangement of the plurality of supporting blocks, so that the thickness of the laminated photovoltaic module can be accurately controlled, and the influence on the service life of the photovoltaic module due to the too thin thickness of the photovoltaic module is avoided; the number, the positions and the sizes of the supporting blocks can be flexibly adjusted according to the specifications such as the area and the thickness of the photovoltaic module so as to adapt to the laminating process of the photovoltaic modules of different specifications, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic technology field especially a kind of photovoltaic module. BACKGROUND

[0002] With the continuous development of new energy technology, photovoltaic modules are increasingly required to improve power generation efficiency and extend service life. Double-glass photovoltaic modules have become the market mainstream due to their excellent weather resistance and mechanical properties. However, during production, the thickness of the modules needs to be controlled to ensure their performance stability during long-term outdoor use. Currently, the thickness of the modules is mainly supported by aluminum laminated frames during the lamination process. However, since there are photovoltaic modules of different specifications, multiple corresponding laminated frames need to be prepared, and the laminated frames of corresponding sizes need to be replaced when laminating photovoltaic modules of different specifications, resulting in increased labor and material inputs. Therefore, there is room for improvement. SUMMARY

[0003] The utility model provides a kind of photovoltaic module, the photovoltaic module has the advantage of keeping the consistency of module thickness in the case of canceling laminated frame.

[0004] According to the photovoltaic module of the utility model embodiment, the front cover plate and the rear cover plate are both transparent pieces, the cell layer is located between the front cover plate and the rear cover plate, the encapsulant layer is located between the front cover plate and the rear cover plate and is used to cover and seal the cell layer, and the plurality of support blocks are arranged on the outer circumferential side of the cell layer along the circumference of the photovoltaic module and are supported between the front cover plate and the rear cover plate.

[0005] According to the photovoltaic module of the utility model embodiment, by setting multiple support blocks, the distance between the front cover plate and the rear cover plate can be maintained during the lamination process, thereby accurately controlling the thickness of the laminated photovoltaic module to avoid the impact of the excessively thin thickness of the photovoltaic module on its service life. In addition, the number, position, and size of the support blocks can be flexibly adjusted according to the specifications such as area and thickness of the photovoltaic module to adapt to the lamination process of photovoltaic modules of different specifications, with a wide range of applications.

[0006] According to some embodiments of the utility model, at least one support block is provided at each corner position of the front cover plate.

[0007] According to some embodiments of the utility model, the support blocks are located at the outer peripheral edges of the front cover plate.

[0008] According to some embodiments of the utility model, the support blocks are aligned with the outer peripheral surfaces of the front cover plate and the rear cover plate.

[0009] According to some embodiments of the present invention, in the circumferential direction of the photovoltaic module, the distance between any two adjacent support blocks is the same.

[0010] According to some embodiments of the present invention, the thickness of the support block in the thickness direction of the photovoltaic module ranges from 0.75mm to 0.85mm.

[0011] According to some embodiments of the present invention, the support block is an elongated strip extending circumferentially along the photovoltaic module.

[0012] According to some embodiments of the present invention, the support block is glued to the front cover plate and the rear cover plate.

[0013] According to some embodiments of this utility model, the support block is a transparent component.

[0014] According to some embodiments of this utility model, the support block is made of EPDM or PET material.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a photovoltaic module according to Embodiment 1 of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of region A in the middle;

[0018] Figure 3 yes Figure 1 Cross-sectional view of BB in the middle;

[0019] Figure 4 yes Figure 3 Enlarged view of region C in the middle;

[0020] Figure 5 This is a structural schematic diagram of a photovoltaic module according to Embodiment 2 of this utility model;

[0021] Figure 6 yes Figure 5 Enlarged view of region D in the middle;

[0022] Figure 7 yes Figure 5 Cross-sectional view of the EE;

[0023] Figure 8 yes Figure 7 A magnified view of region F in the middle.

[0024] Figure label:

[0025] 100. Photovoltaic module; 1. Back cover plate; 2. Cell layer; 3. Support block; 4. Adhesive tape. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0028] The photovoltaic module 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0029] like Figures 1-8 As shown, the photovoltaic module 100 according to an embodiment of the present invention includes: a front cover plate, a rear cover plate 1, a cell layer 2, an encapsulant layer, and multiple support blocks 3. The front cover plate and the rear cover plate 1 are both transparent, such as glass, to ensure light transmittance. The cell layer 2 is located between the front cover plate and the rear cover plate 1. The cell layer 2 is formed by an array of multiple individual cells. It can absorb light transmitted through the front cover plate to generate electricity. The encapsulant layer is located between the front cover plate and the rear cover plate 1 and is used to wrap and seal the cell layer 2. The multiple support blocks 3 are arranged along the circumference of the photovoltaic module 100 on the outer periphery of the cell layer 2 and are supported between the front cover plate and the rear cover plate 1.

[0030] In other words, along the thickness direction of the photovoltaic module 100, one end face of the support block 3 abuts against the side of the front cover plate facing the rear cover plate 1, and the other end face of the support block 3 abuts against the side of the rear cover plate 1 facing the front cover plate. Thus, multiple support blocks 3 support the front cover plate and the rear cover plate 1, effectively maintaining the distance between them. It is understood that the photovoltaic module 100 requires a lamination process for production. Therefore, by setting multiple support blocks 3, the distance between the front cover plate and the rear cover plate 1 can be maintained during lamination, allowing for precise control of the thickness of the photovoltaic module 100 after lamination, preventing the photovoltaic module 100 from being too thin and affecting its lifespan. Furthermore, the number, position, and size of the support blocks 3 can be flexibly adjusted according to the specifications of the photovoltaic module 100, such as area and thickness, to adapt to the lamination process of different specifications of photovoltaic modules 100, making it widely applicable.

[0031] Furthermore, the support block 3 can make full use of the space between the front cover plate and the rear cover plate 1, thereby better controlling the size of the photovoltaic module 100. The thickness of the support block 3 only needs to be the same as the distance between the front cover plate and the rear cover plate 1, thereby better reducing the thickness of the support block 3 and saving the cost of using the support block 3.

[0032] According to the photovoltaic module 100 of this utility model embodiment, by setting multiple support blocks 3, the distance between the front cover plate and the rear cover plate 1 can be maintained during the lamination process. This allows for accurate control of the thickness of the photovoltaic module 100 after lamination, preventing the photovoltaic module 100 from being too thin and affecting its service life. Furthermore, the number, position, and size of the support blocks 3 can be flexibly adjusted according to the specifications of the photovoltaic module 100, such as area and thickness, to adapt to the lamination process of photovoltaic modules 100 of different specifications, thus having a wide range of applications.

[0033] According to some embodiments of this utility model, at least one support block 3 is provided at each corner of the front cover plate. If the front cover plate is rectangular, then at least one support block 3 is provided at each of the four corners of the front cover plate. Therefore, the distance between the corners of the front cover plate and the rear cover plate 1 can be controlled by the support blocks 3 located at the corners, so as to ensure the uniformity of the thickness of the photovoltaic module 100, and at the same time, it can prevent the relatively fragile corners of the front cover plate and the rear cover plate 1 from being damaged when subjected to compression, so as to ensure the safety of the front cover plate and the rear cover plate 1 during the lamination process of the photovoltaic module 100.

[0034] According to some embodiments of this utility model, the support block 3 is located at the outer peripheral edge of the front cover. Therefore, while ensuring the supporting effect of the support block 3, it is possible to avoid contact between the support block 3 and the battery cell layer 2, so as to avoid the support block 3 from squeezing or blocking the battery cell layer 2, thereby avoiding damage to the battery cell layer 2 caused by squeezing, and at the same time avoiding the impact of blocking the battery cell layer 2 on the light utilization rate.

[0035] According to some embodiments of this utility model, the support block 3 is aligned with the outer peripheral surfaces of the front cover plate and the rear cover plate 1. That is, the side of the support block 3 away from the battery cell layer 2 is flush with the outer peripheral surfaces of the front cover plate and the rear cover plate 1, so that the supporting effect of the support block 3 can better cover the edge positions of the front cover plate and the rear cover plate 1. At the same time, it can prevent the support block 3 from protruding from the outer peripheral surfaces of the front cover plate and the rear cover plate 1 and affecting the installation of the photovoltaic module 100.

[0036] According to some embodiments of this utility model, the distance between any two adjacent support blocks 3 in the circumferential direction of the photovoltaic module 100 is the same. That is, multiple support blocks 3 are evenly spaced on the outer periphery of the cell layer 2, so that multiple support blocks 3 can provide uniform support for the front cover plate and the rear cover plate 1 at multiple positions in the circumferential direction, thereby ensuring the uniformity of the thickness of the photovoltaic module 100 in the circumferential direction.

[0037] According to some embodiments of this utility model, the thickness of the support block 3 in the thickness direction of the photovoltaic module 100 ranges from 0.75mm to 0.85mm. It is understood that the size of the support block 3 is the same as the distance between the front cover plate and the rear cover plate 1 that the support block 3 can support. Therefore, by controlling the thickness of the support block 3 between 0.75mm and 0.85mm, the distance between the front cover plate and the rear cover plate 1 can be controlled between 0.75mm and 0.85mm, thereby more precisely controlling the overall thickness of the photovoltaic module 100. For example, the thickness of the support block 3 can be 0.75mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm, 0.8mm, 0.81mm, 0.82mm, 0.83mm, 0.84mm, 0.85mm, etc.

[0038] According to some embodiments of this utility model, the support block 3 is an elongated strip extending circumferentially along the photovoltaic module 100. Therefore, the circumferential dimension of the support block 3 in the photovoltaic module 100 can be increased, thereby increasing the support area of ​​the support block 3 and improving the stability of the support block 3 between the front cover plate and the rear cover plate 1.

[0039] According to some embodiments of this utility model, the support block 3 is adhesively connected to the front cover plate and the rear cover plate 1. The support block 3 is fixed to the edge areas of the front cover plate and the rear cover plate 1 by adhesive bonding. This maintains the relative position of the support block 3 with the front cover plate and the rear cover plate 1 during the lamination process, ensuring the support effect of the support block 3 on the designated area. Furthermore, the adhesive bonding method is simple and eliminates the need for connection structures on the connected components, such as the front cover plate and the support block 3, thus simplifying the connection structure between the support block 3 and the front cover plate. This also facilitates implementation and improves the assembly efficiency of the photovoltaic module 100.

[0040] According to some embodiments of this utility model, the support block 3 is a transparent component. That is, the support block 3 is light-transmitting, thereby preventing the support block 3 from blocking sunlight from reaching the solar cell layer 2, thus improving the power generation efficiency of the photovoltaic module 100 while ensuring the supporting effect of the support block 3.

[0041] According to some embodiments of this utility model, the support block 3 is made of EPDM or PET material. EPDM (ethylene propylene rubber) possesses excellent elasticity, high temperature resistance, UV resistance, and aging resistance, maintaining stable physical properties during long-term use of the photovoltaic module 100 and is less prone to cracking or performance degradation. PET (polyethylene terephthalate) has good mechanical strength, heat resistance, and chemical stability, while also exhibiting low hygroscopicity, making it suitable for use in the harsh environment of the photovoltaic module 100. Therefore, by selecting EPDM or PET material to make the support block 3, reliable support can be provided during the lamination process, while preventing the support block 3 from causing extrusion damage to the front cover plate.

[0042] According to some embodiments of this utility model, the support block 3 is disposed on the outer periphery of the front cover plate. That is, the support block 3 is located on the outer side of the edge area of ​​the front cover plate and the rear cover plate 1. Therefore, during the lamination process, the pressure exerted on the photovoltaic module 100 by the lamination structure of the laminator, such as the silicone plate, can be distributed by the support block 3, thereby reducing the stress on the front cover plate and improving the safety of the front cover plate during the lamination process.

[0043] In a specific example, the support block 3 is fixed to the outer periphery of the front cover plate by tape 4. While the tape 4 is connected to the support block 3, it is also connected to the front cover plate and the rear cover plate. This can improve the stability of the connection between the front cover plate and the rear cover plate while fixing the support block 3 by tape 4.

[0044] According to some embodiments of this utility model, the support block 3 abuts against the outer peripheral surfaces of the front cover plate and the rear cover plate 1. That is to say, this can effectively reduce the space occupied by the support block 3 on the outer peripheral side of the front cover plate, thereby controlling the size of the photovoltaic module 100 while maintaining the thickness dimension of the photovoltaic module 100 through the support block 3, thus improving space utilization.

[0045] According to some embodiments of this utility model, the projection of the support block 3 on the reference surface is located within the projection of the front cover plate on the reference surface, and the reference surface is perpendicular to the thickness direction of the front cover plate. That is to say, the projection range of the support block 3 is completely contained within the projection range of the front cover plate, thereby ensuring that the support block 3 will not exceed the outer peripheral edge of the front cover plate during the lamination process, and avoiding the support block 3 from increasing the size of the photovoltaic module 100.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A photovoltaic module, characterized by, The photovoltaic module comprises: a front cover plate and a rear cover plate, both of which are transparent; a cell layer between the front cover plate and the rear cover plate; an encapsulant layer between the front cover plate and the rear cover plate for encapsulating the cell layer; a plurality of support blocks arranged along the circumference of the photovoltaic module at the outer periphery of the cell layer and supported between the front cover plate and the rear cover plate.

2. The photovoltaic module of claim 1, wherein, Each corner of the front cover plate is provided with at least one support block.

3. The photovoltaic module of claim 1, wherein, The support blocks are located at the outer peripheral edge of the front cover plate.

4. The photovoltaic module of claim 1, wherein, The support blocks are aligned with the outer peripheral surface of the front cover plate and the rear cover plate.

5. The photovoltaic module of claim 1, wherein, The distance between any two adjacent support blocks in the circumferential direction of the photovoltaic module is the same.

6. The photovoltaic module of claim 1, wherein, The thickness of the support blocks in the thickness direction of the photovoltaic module ranges from 0.75 mm to 0.85 mm.

7. The photovoltaic module of claim 1, wherein, The support blocks are in the shape of long strips extending along the circumference of the photovoltaic module.

8. The photovoltaic module of claim 1, wherein, The support blocks are adhesively connected to the front cover plate and the rear cover plate.

9. The photovoltaic module of claim 1, wherein, The support blocks are transparent.

10. The photovoltaic module of claim 1, wherein, The support blocks are made of EPDM or PET.

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