Photovoltaic module and photovoltaic power generation system with same

By introducing buffer components into photovoltaic modules, the risk of component explosion and assembly difficulty caused by hard contact between the photovoltaic body and the frame are solved, achieving higher buffering performance and ease of assembly, and improving the stability and service life of the modules.

CN223626241UActive Publication Date: 2025-12-02CHANGSHU CANADIAN SOLAR ELECTRIC POWER TECHCO
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520286350.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2025-12-02
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

During the framing process, the photovoltaic module may be tilted to one side, causing hard contact with the frame, increasing the risk of explosion and making assembly more difficult.

Method used

Introducing buffers into photovoltaic modules, including a first buffer formed by the overflow of encapsulating film to the side of the photovoltaic body, and/or a second buffer disposed on the frame opposite the side of the photovoltaic body, reduces the risk of collision between the photovoltaic body and the frame and simplifies the assembly process.

Benefits of technology

It effectively reduces the risk of photovoltaic modules exploding, improves the convenience and stability of assembly, enhances the buffering and sealing of modules, and extends their service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223626241U_ABST
    Figure CN223626241U_ABST
Patent Text Reader

Abstract

The utility model discloses a photovoltaic assembly and a photovoltaic power generation system with the same, and the photovoltaic assembly comprises a photovoltaic body which comprises a packaging adhesive film; the frame is arranged on the peripheral side of the photovoltaic body; and the buffer member comprises at least one of a first buffer member and a second buffer member, the first buffer member is formed by overflowing a part of the packaging adhesive film to the side edge of the photovoltaic body, the second buffer member is arranged on the frame, and the second buffer member is opposite to the side edge of the photovoltaic body. The photovoltaic module provided by the embodiment of the utility model has the advantages of good buffering performance, low assembly difficulty, reduced explosion risk and the like.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a photovoltaic module and a photovoltaic power generation system having the same. Background Technology

[0002] In related technologies, photovoltaic (PV) modules typically include a photovoltaic (PV) module and a frame surrounding the PV module. During framing, adhesive is pre-applied to the grooves in the frame, and the PV module is inserted into the grooves. After the adhesive cures, a fixed connection is achieved between the PV module and the frame. However, during actual framing, the PV module may be biased towards one side of the frame, resulting in one side of the PV module directly contacting the inner wall of the frame, or the gap between the side of the PV module and the inner wall of the frame being very small. When the PV module is subjected to vibration, the PV module and the frame are prone to hard contact, increasing the risk of the PV module exploding. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a photovoltaic module that has advantages such as good buffering capacity, low assembly difficulty, and reduced risk of explosion.

[0004] Another objective of this invention is to provide a photovoltaic power generation system having the aforementioned photovoltaic modules.

[0005] A photovoltaic module according to a first aspect of the present invention includes: a photovoltaic body, the photovoltaic body including an encapsulating film; a frame, the frame being disposed on the outer periphery of the photovoltaic body; and a buffer, the buffer including at least one of a first buffer and a second buffer, the first buffer being formed by a portion of the encapsulating film overflowing to the side of the photovoltaic body, the second buffer being disposed on the frame, and the second buffer being opposite to the side of the photovoltaic body.

[0006] According to the photovoltaic module of this utility model embodiment, a first buffer extends from a portion of the encapsulating film to the side of the photovoltaic body, and / or a second buffer is disposed on the frame, with the second buffer opposite to the side of the photovoltaic body. Thus, through the buffering effect of the first and second buffers, the risk of explosion caused by collision between the photovoltaic body and the frame can be reduced, while also reducing assembly difficulty.

[0007] According to some embodiments of the present invention, the photovoltaic body further includes: a photovoltaic cell layer; a front cover plate disposed on one side of the photovoltaic cell layer in the thickness direction; a back cover plate disposed on the other side of the photovoltaic cell layer in the thickness direction; the encapsulating film includes a front encapsulating film and a back encapsulating film, the front encapsulating film being disposed between the photovoltaic cell layer and the front cover plate, and the back encapsulating film being disposed between the photovoltaic cell layer and the back cover plate; when the buffer includes a first buffer, the first buffer is formed by a portion of at least one of the front encapsulating film and the back encapsulating film overflowing to the side of the photovoltaic body.

[0008] According to some embodiments of the present invention, the first buffer extends to the front cover plate and the back cover plate on both sides along the thickness direction of the photovoltaic body, respectively.

[0009] According to some embodiments of the present invention, the width of the first buffer member in the thickness direction of the photovoltaic body is equal to the thickness of the photovoltaic body.

[0010] According to some embodiments of this utility model, when the buffer includes a first buffer, the thickness of the first buffer is t, wherein t satisfies: 0.8mm ≤ t ≤ 1.2mm. The dimension t depends on the gap between the inner side of the frame and the side of the photovoltaic body; when the gap is large, the dimension t can be further increased.

[0011] According to some embodiments of the present invention, there are multiple buffer members, and the multiple buffer members are arranged at intervals along the circumference of the photovoltaic body.

[0012] According to some embodiments of the present invention, the buffer is located at positions other than the four corners of the photovoltaic body.

[0013] According to some embodiments of the present invention, a receiving groove is formed on the frame, the edge of the photovoltaic body fits into the receiving groove, and the buffer is located at least between the side of the photovoltaic body and the bottom wall of the receiving groove.

[0014] Furthermore, the photovoltaic module includes: a frame adhesive, which is disposed between the edge of the photovoltaic body and the inner wall of the receiving groove.

[0015] According to some embodiments of the present invention, the frame adhesive includes: a first frame adhesive portion, which is disposed between the surface of the photovoltaic body and the side wall of the receiving groove.

[0016] According to some embodiments of the present invention, the frame adhesive further includes: a second frame adhesive portion, the second frame adhesive portion being disposed between the side of the photovoltaic body and the bottom wall of the receiving groove; when the buffer includes a first buffer, the second frame adhesive portion is located between the first buffer and the bottom wall of the receiving groove; when the buffer includes a second buffer, the second frame adhesive portion is located between the side of the photovoltaic body and the second buffer.

[0017] A photovoltaic power generation system according to a second aspect of the present invention includes a photovoltaic module according to the first aspect of the present invention described above.

[0018] The photovoltaic power generation system according to the embodiments of the present invention has advantages such as good buffering capacity, low assembly difficulty, and reduced risk of explosion by using the photovoltaic modules according to the above embodiments of the present invention.

[0019] 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

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a photovoltaic module according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of a photovoltaic module according to an embodiment of the present utility model.

[0023] Figure label:

[0024] Photovoltaic module 1, photovoltaic body 100, frame 200, buffer 300, first buffer 310,

[0025] Second buffer component 320, frame adhesive 400

[0026] Encapsulating film 110, photovoltaic cell layer 120, front cover plate 130, back cover plate 140

[0027] Receiving groove 201, first frame adhesive part 410,

[0028] The second frame adhesive part is 420. Detailed Implementation

[0029] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0031] In the description of this utility model, "multiple" means two or more.

[0032] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0033] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0034] The photovoltaic module 1 according to a first aspect embodiment of the present invention is described below with reference to the accompanying drawings.

[0035] like Figures 1-2 As shown, the photovoltaic module 1 according to the first aspect of the present invention includes: a photovoltaic body 100, a frame 200 and a buffer 300.

[0036] Specifically, the photovoltaic body 100 includes an encapsulating film 110. A frame 200 is disposed on the outer periphery of the photovoltaic body 100. The buffer 300 includes at least one of a first buffer 310 and a second buffer 320. The first buffer 310 is formed by a portion of the encapsulating film 110 overflowing to the side of the photovoltaic body 100. The second buffer 320 is disposed on the frame 200 and is opposite to the side of the photovoltaic body 100.

[0037] For example, in Figure 1 and Figure 2In the example, the photovoltaic body 100 is a laminated component, in which photovoltaic cells are encapsulated within an encapsulating film through a lamination process. The shape of the groove in the frame 200 matches the shape of the edge of the photovoltaic body 100, and the frame 200 surrounds the photovoltaic body 100. For example, the photovoltaic body 100 is roughly rectangular in shape, in which case the frame 200 forms a rectangular frame, and the cross-sectional area of ​​the photovoltaic body 100 is slightly smaller than the cross-sectional area of ​​the frame 200, creating a certain installation gap between the photovoltaic body 100 and the frame 200, thereby reserving installation space for the first buffer 310 and the second buffer 320. The buffer 300 can be located only on opposite sides of the photovoltaic body 100, or it can be simultaneously located on all sides of the photovoltaic body 100.

[0038] It should be noted that, depending on the situation, only one of the first buffer 310 and the second buffer 320 may be used, or both the first buffer 310 and the second buffer 320 may be set simultaneously.

[0039] Specifically, when only the first buffer 310 is provided, the encapsulating film overflows to the side of the photovoltaic body 100 after encapsulation to form the first buffer 310. The first buffer 310 forms a buffer structure on the side of the photovoltaic body 100, which can buffer the photovoltaic body 100. Since the photovoltaic body 100 and the first buffer 310 are integrally formed, during the assembly process, the photovoltaic body 100 together with the first buffer 310 can be assembled to the frame 200 as a whole. When the photovoltaic module 1 is impacted, the first buffer 310 will absorb the vibration, so that the edge of the photovoltaic body 100 is protected by the first buffer 310, avoiding the risk of explosion due to hard contact between the photovoltaic body 100 and the frame 200. Therefore, there is no need to consider the problem of too small a gap between the photovoltaic body 100 and the frame 200 during installation, reducing the installation difficulty.

[0040] Similarly, when only the second buffer 320 is provided, since the second buffer 320 is located between the groove of the frame 200 and the photovoltaic body 100, it also plays a buffering role for the photovoltaic body 100. During the assembly process, the edge of the photovoltaic body 100 is protected by the buffer of the second buffer 320 at the frame 200, which can also reduce the risk of the photovoltaic body 100 colliding with the frame 200 and causing the component to explode.

[0041] In other embodiments, a portion of the first buffer 310 overflows from the encapsulating film 110 to the side of the photovoltaic body 100, and a second buffer 320 is disposed on the frame 200. By simultaneously providing the first buffer 310 and the second buffer 320 between the photovoltaic body 100 and the frame 200, the buffering effect of the first buffer 310 and the second buffer 320 can reduce the risk of explosion caused by the collision between the photovoltaic body 100 and the frame 200, and at the same time reduce the assembly difficulty.

[0042] Optionally, the first buffer 310 can be a polymer material (such as EVA film) with high light transmittance; the second buffer 320 can be a silicone material.

[0043] Therefore, according to the photovoltaic module 1 of this utility model embodiment, by allowing a portion of the first buffer 310 to overflow from the encapsulating film to the side of the photovoltaic body 100, and / or by providing a second buffer 320 on the frame, with the second buffer 320 opposite to the side of the photovoltaic body 100, the photovoltaic module 1 has advantages such as good cushioning, low assembly difficulty, and reduced risk of explosion caused by collision between the photovoltaic body 100 and the frame 200.

[0044] In some embodiments of this utility model, such as Figure 2 As shown, the photovoltaic body 100 also includes a photovoltaic cell layer 120, a front cover plate 130, and a back cover plate 140. The front cover plate 130 is disposed on one side of the photovoltaic cell layer 120 in the thickness direction. The back cover plate 140 is disposed on the other side of the photovoltaic cell layer 120 in the thickness direction. The encapsulating film 110 includes a front encapsulating film and a back encapsulating film. The front encapsulating film is disposed between the photovoltaic cell layer 120 and the front cover plate 130, and the back encapsulating film is disposed between the photovoltaic cell layer 120 and the back cover plate 140. When the buffer 300 includes a first buffer 310, the first buffer 310 is formed by a portion of at least one of the front encapsulating film and the back encapsulating film overflowing to the side of the photovoltaic body 100.

[0045] The photovoltaic cell layer 120, as the core component of the photovoltaic body 100, is responsible for converting solar energy into electrical energy. The photovoltaic cell layer 120 is typically made of semiconductor materials, such as silicon. The front cover plate 130 is located above the photovoltaic cell layer 120 and is typically made of a transparent material such as tempered glass. The back cover plate 140 is located below the photovoltaic cell layer 120 and provides additional protection and support for the photovoltaic cell layer 120. The encapsulating film 110 is typically made of materials such as EVA and is used to bond and protect the photovoltaic cell layer 120.

[0046] The entire photovoltaic module 100 is protected by the front cover plate 130 and the back cover plate 140 to prevent damage caused by external impacts, scratches, and environmental factors, ensuring the integrity of the photovoltaic cell layer 120. The use of the front encapsulating film 130 and the back encapsulating film 140 provides good sealing performance, effectively preventing moisture and other impurities from entering the interior of the photovoltaic module 1 and extending the service life of the photovoltaic module 1.

[0047] Specifically, only a portion of the front encapsulating film 130 may overflow the side of the photovoltaic body 100 to form the first buffer 310; or only a portion of the back encapsulating film 140 may overflow the side of the photovoltaic body 100 to form the first buffer 310; or both a portion of the front encapsulating film 130 and a portion of the back encapsulating film 140 may overflow the side of the photovoltaic body 100 to form the first buffer 310.

[0048] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2 The first buffer 310 extends along both sides of the photovoltaic body 100 in the thickness direction to the front cover plate 130 and the back cover plate 140, respectively.

[0049] The first buffer 310 not only exists on the side of the photovoltaic cell layer 120, but can also extend to the upper and lower surfaces of the front cover plate 130 and the back cover plate 140, forming a comprehensive buffer area.

[0050] Since the first buffer 310 extends to the front back panel 130 and the rear cover 140, it can form a buffer zone to absorb and disperse the impact force generated during transportation and installation, reduce the risk of photovoltaic module 1 breaking under strong impact, and extend the service life of photovoltaic module 1.

[0051] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2 The width of the first buffer 310 in the thickness direction of the photovoltaic body 100 is equal to the thickness of the photovoltaic body 100.

[0052] The width of the first buffer 310 is equal to the thickness of the photovoltaic body 100, meaning it completely covers the edge area of ​​the photovoltaic body 100, forming a continuous protective layer from the front cover plate 130 to the back cover plate 140. This effectively prevents moisture, dust, and contaminants from intruding from the edges, improving the sealing performance of the photovoltaic module 1. Simultaneously, the full-coverage structure of the first buffer 310 provides a certain degree of cushioning, reducing direct impact on the photovoltaic cell layer 120, thereby improving the impact resistance and reliability of the photovoltaic module 1.

[0053] Optionally, when the buffer 300 includes a first buffer 310, the thickness of the first buffer 310 is t, where t satisfies: 0.8mm ≤ t ≤ 1.2mm, as shown below. Figure 2 As shown.

[0054] Controlling the thickness of the first buffer element 310 within a certain range can effectively provide sufficient buffer space to absorb and disperse impact forces, avoiding stress concentration or insufficient buffering effect caused by thickness. At the same time, controlling the thickness of the first buffer element 310 within a reasonable range can avoid material waste, reduce production costs, and ensure that the performance of the photovoltaic module 1 is not affected.

[0055] For example, if the thickness of the first buffer is 1 mm, the first buffer 310 can provide sufficient buffering force to prevent the photovoltaic body 100 from being damaged under external force. At the same time, the thickness of 1 mm will not significantly increase the cost of the photovoltaic module 1.

[0056] In some embodiments of this utility model, there are multiple buffer members 300, and the multiple buffer members 300 are arranged at intervals along the circumference of the photovoltaic body 100.

[0057] The arrangement of multiple buffers 300 can more evenly distribute the external pressure and impact force on the photovoltaic module 1, thereby reducing local stress concentration and preventing damage to the photovoltaic cell layer 120 due to uneven stress. At the same time, multiple buffers 300 can also provide more comprehensive protection for the edges of the photovoltaic body 100, preventing contaminants from entering from the edges of the photovoltaic body 1, and improving the sealing and durability of the photovoltaic module 1.

[0058] In some embodiments of this utility model, the buffer 300 is located at positions other than the four corners of the photovoltaic body 100.

[0059] At the four corners of photovoltaic module 1, significant stress concentration typically occurs. Placing the buffer 300 outside the corners effectively reduces stress concentration in these areas, minimizing fatigue and damage to the corner materials. Furthermore, placing the buffer 300 in non-corner locations provides more design options for module layout, making the production and installation of photovoltaic module 1 more flexible.

[0060] In some embodiments of this utility model, such as Figure 2 As shown, a receiving groove 201 is formed on the frame 200, the edge of the photovoltaic body 100 is fitted into the receiving groove 201, and the buffer 300 is located at least between the side of the photovoltaic body 100 and the bottom wall of the receiving groove 201.

[0061] The receiving groove 201 can firmly fix the edge of the photovoltaic body 100 inside the frame 200 to prevent the photovoltaic body 100 from loosening during installation. At the same time, the receiving groove 201 provides necessary support for the photovoltaic body 100, ensuring that the photovoltaic body 100 maintains a good stable state when it is embedded in the receiving groove 201.

[0062] By placing the buffer 300 between the side of the photovoltaic body 100 and the bottom wall of the receiving groove 201, hard contact between the photovoltaic body 100 and the bottom wall of the receiving groove 201 can be prevented, thereby avoiding the risk of explosion caused by the collision between the photovoltaic body 100 and the frame 200.

[0063] In some embodiments of this utility model, a frame adhesive 400 is further included. (See reference...) Figure 1 and Figure 2 The frame adhesive 400 is disposed between the edge of the photovoltaic body 100 and the inner wall of the receiving groove 201.

[0064] The frame adhesive 400 forms an adhesive layer between the edge of the photovoltaic body 100 and the inner wall of the receiving groove 201. During the assembly of the photovoltaic body 100 and the frame 200, the frame adhesive 400 provides sufficient bonding strength. After the frame adhesive 400 cures, it can bond the frame 200 and the photovoltaic body 100 together. This helps to ensure the structural stability of the photovoltaic module 1 and prevent the frame 200 and the photovoltaic body 100 from loosening or falling off during use.

[0065] Furthermore, the frame adhesive 400 fills the space between the frame 200 and the photovoltaic module 100, forming a sealing layer that effectively prevents external factors such as moisture and dust from entering the photovoltaic module 1, protecting the photovoltaic cell layer 120 and other structures, thereby reducing damage to the photovoltaic module 1 and improving its durability and reliability. The frame adhesive 400 also possesses a certain degree of elasticity and cushioning properties; when the photovoltaic module 1 receives external impact, it can absorb and disperse the impact force, protecting the photovoltaic module 100 from damage.

[0066] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the frame adhesive 400 includes a first frame adhesive portion 410. The first frame adhesive portion 410 is disposed between the surface of the photovoltaic body 100 and the side wall of the receiving groove 201.

[0067] The first frame adhesive portion 410 can effectively fill the gap between the photovoltaic body 100 and the receiving groove 201, forming a good sealing effect, preventing external impurities from entering, while increasing the buffering force between the photovoltaic body 100 and the frame 200, improving the reliability of the photovoltaic module 1, and reducing the risk of explosion during the use of the photovoltaic module 1.

[0068] In addition, the first frame adhesive portion 410 can increase the adhesive force between the photovoltaic body 100 and the frame 200, ensuring that the photovoltaic body 100 is stably fixed in the frame 200, reducing the risk of the photovoltaic body 100 loosening or falling off due to vibration or external force.

[0069] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the frame adhesive 400 also includes a second frame adhesive portion 420. The second frame adhesive portion 420 is disposed between the side of the photovoltaic body 100 and the bottom wall of the receiving groove 201. When the buffer member 300 includes a first buffer member, the second frame adhesive portion 420 is located between the first buffer member 410 and the bottom wall of the receiving groove 201. When the buffer member 300 includes a second buffer member 320, the second frame adhesive portion 420 is located between the side of the photovoltaic body 100 and the second buffer member 320.

[0070] The second frame adhesive portion 420 is located between the side of the photovoltaic body 100 and the bottom wall of the receiving groove 201, effectively preventing the intrusion of external impurities, improving the overall sealing performance, and ensuring the stability and reliability of the photovoltaic module 1 under various environmental conditions. Simultaneously, the placement of the second frame adhesive portion 420 between the side of the photovoltaic body 100 and the bottom wall of the receiving groove 201 further enhances the fixation between the photovoltaic body 100 and the frame 200, preventing displacement or loosening caused by external forces, and ensuring that the photovoltaic module 1 remains in the correct position during use.

[0071] It should be noted that when the encapsulating film 110 encapsulates the photovoltaic cell layer 120, excess adhesive will be generated around the edges. After the excess adhesive has cured, it needs to be cleaned up with an edge trimming machine. In order to ensure the dimensional accuracy of the first buffer 310 formed by the encapsulating film 120, the amount of adhesive that overflows from the edge of the photovoltaic body 100 during edge trimming must be equal.

[0072] To this end, firstly, a specific size of encapsulating film 120 is cut outward from the four corners of the photovoltaic body 100, forming a precise size of encapsulating film 120 at the four corners of the photovoltaic body 100. Then, the encapsulating film 120 on the four sides is cut again to achieve precise alignment. The cutting can be done using die-cutting or rotary cutting methods, ensuring the cutting tool remains in contact with the front cover plate 130 and the back cover plate 140, reducing the risk of edge breakage and extending tool life.

[0073] The cut-off encapsulating film 120 can also be used as a second buffer 320, thereby reducing resource waste.

[0074] The following describes a photovoltaic power generation system (not shown in the figure) according to an embodiment of the present invention.

[0075] The photovoltaic power generation system according to the present invention includes the photovoltaic module 1 of the above embodiments of the present invention.

[0076] The photovoltaic power generation system according to the present invention improves the structural stability of the photovoltaic power generation system and extends its service life by utilizing the photovoltaic module 1 of the above embodiments of the present invention.

[0077] Other components and operations of the photovoltaic modules and photovoltaic power generation systems according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.

[0079] 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 in that, include: Photovoltaic body, the photovoltaic body including encapsulating film; A frame, wherein the frame is disposed on the outer periphery of the photovoltaic body; The buffer includes at least one of a first buffer and a second buffer. The first buffer is formed by a portion of the encapsulating film overflowing to the side of the photovoltaic body. The second buffer is disposed on the frame and is opposite to the side of the photovoltaic body.

2. The photovoltaic module according to claim 1, characterized in that, The photovoltaic body also includes: Photovoltaic cell layer; A front cover plate, wherein the front cover plate is disposed on one side of the photovoltaic cell layer in the thickness direction; A back cover plate, wherein the back cover plate is disposed on the opposite side of the thickness direction of the photovoltaic cell layer; The encapsulating film includes a front encapsulating film and a back encapsulating film. The front encapsulating film is disposed between the photovoltaic cell layer and the front cover plate, and the back encapsulating film is disposed between the photovoltaic cell layer and the back cover plate. When the buffer includes a first buffer, the first buffer is formed by a portion of at least one of the front encapsulating film and the back encapsulating film overflowing to the side of the photovoltaic body.

3. The photovoltaic module according to claim 2, characterized in that, The first buffer extends to the front cover and the back cover on both sides along the thickness direction of the photovoltaic body, respectively.

4. The photovoltaic module according to claim 2, characterized in that, The width of the first buffer member in the thickness direction of the photovoltaic body is equal to the thickness of the photovoltaic body.

5. The photovoltaic module according to claim 1, characterized in that, When the buffer includes a first buffer, the thickness of the first buffer is t, wherein t satisfies: 0.8mm≤t≤1.2mm.

6. The photovoltaic module according to claim 1, characterized in that, The buffer element is a plurality of components, which are arranged at intervals along the circumference of the photovoltaic body.

7. The photovoltaic module according to claim 1, characterized in that, The buffer is located at all positions except the four corners of the photovoltaic body.

8. The photovoltaic module according to any one of claims 1-7, characterized in that, A receiving groove is formed on the frame, the edge of the photovoltaic body fits into the receiving groove, and the buffer is located at least between the side of the photovoltaic body and the bottom wall of the receiving groove.

9. The photovoltaic module according to claim 8, characterized in that, Further includes: The frame adhesive is disposed between the edge of the photovoltaic body and the inner wall of the receiving groove.

10. The photovoltaic module according to claim 9, characterized in that, The frame adhesive includes: The first frame adhesive portion is disposed between the surface of the photovoltaic body and the side wall of the receiving groove.

11. The photovoltaic module according to claim 10, characterized in that, The border adhesive also includes: The second frame adhesive portion is disposed between the side of the photovoltaic body and the bottom wall of the receiving groove; When the buffer includes a first buffer, the second frame adhesive portion is located between the first buffer and the bottom wall of the receiving groove; When the buffer includes a second buffer, the second frame adhesive portion is located between the side of the photovoltaic body and the second buffer.

12. A photovoltaic power generation system, characterized in that, Includes photovoltaic modules according to any one of claims 1-11.