Corner protector for photovoltaic module

By designing detachable photovoltaic module corner protectors, and utilizing the top and side plates to form a receiving groove with anti-detachment features, the problem of corner protectors falling off the C-shaped frame is solved, achieving stable installation and protection while reducing costs.

CN223479782UActive Publication Date: 2025-10-28TONGWEI SOLAR ENERGY (CHENGDU) CO LID
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Patent Information

Application Number
CN202422886689.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-10-28
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

Traditional paper corner protectors cannot meet the locking function of frames without C-edges and are easy to fall off, causing problems such as scratches on the frames.

Method used

Design a photovoltaic module corner protector, including a base plate, a side plate and a top plate. The top plate and the side plate are detachably connected to form a receiving groove. The top plate has an anti-detachment part that abuts against the inner side of the frame. Quick connection is achieved by using a tongue and a slot, and fold lines facilitate folding. The material can be paper or plastic.

Benefits of technology

It improves the installation stability of the corner protectors, prevents them from falling off, enhances the protection of the photovoltaic module frame, and is simple to operate and low in cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a photovoltaic module corner protector. The photovoltaic module corner protector comprises a bottom plate, a first side plate, a second side plate, a first top plate and a second top plate. Wherein the bottom plate comprises a first edge and a second edge which are intersected, one end of the first side plate is connected with the first edge, the first top plate is connected with the other end of the first side plate, one end of the second side plate is connected with the second edge, and the second top plate is connected with the other end of the second side plate; the second top plate is detachably connected with the first top plate. When the second top plate is connected with the first top plate, the first top plate, the second top plate, the first side plate, the second side plate and the bottom plate jointly define a containing groove, and the containing groove is used for containing the vertex angle of the frame of the photovoltaic module; the first top plate and / or the second top plate are / is further provided with an anti-disengaging part capable of being folded towards the interior of the containing groove, and the anti-disengaging part is used for being connected with the inner side face of the frame in an abutting mode. The photovoltaic module angle bead can be stably locked on the frame of the photovoltaic module, so that the photovoltaic module angle bead is prevented from falling off.
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Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and in particular to a photovoltaic module corner protector. Background Technology

[0002] Photovoltaic modules are the core components of solar cells. A typical photovoltaic module usually includes a backsheet, cell strings, a glass panel, and a frame. The backsheet, cell strings, and glass panel are stacked to form a laminate, and the frame surrounds the edge of the laminate. The frame typically includes a long frame that surrounds the long side of the laminate and a short frame that surrounds the short side of the laminate. The long frame and the short frame are connected perpendicularly, forming a right-angled apex at the connection point.

[0003] During the transportation of photovoltaic modules, paper corner protectors are often used to protect the top corners of the frame from friction and collisions. With the trend towards cost reduction and efficiency improvement in photovoltaic modules, frameless (C-edge) designs have become the future trend. However, most current paper corner protectors are designed for frames with C-edges. For frameless frames, traditional paper corner protectors cannot provide a locking function, are prone to detachment, and thus fail to protect the frame, easily causing scratches and other problems. Utility Model Content

[0004] Therefore, it is necessary to provide a photovoltaic module corner protector to improve the installation stability of the corner protector and prevent the corner protector from detaching.

[0005] This application provides a photovoltaic module corner protector, including:

[0006] The base plate includes a first edge and a second edge that intersect each other;

[0007] A first side plate, one end of which is connected to the first edge;

[0008] A first top plate, which is connected to the other end of the first side plate;

[0009] A second side plate, one end of which is connected to the second edge; and

[0010] The second top plate is connected to the other end of the second side plate; the second top plate is detachably connected to the first top plate, and when the second top plate is connected to the first top plate, the first top plate, the second top plate, the first side plate, the second side plate and the bottom plate together form a receiving groove, which is used to accommodate the top corner of the frame of the photovoltaic module;

[0011] The first top plate and / or the second top plate are further provided with an anti-detachment part that can be folded into the receiving groove, and the anti-detachment part is used to abut against the inner side of the frame.

[0012] The technical solution will be further explained below:

[0013] In one embodiment, one of the first top plate and the second top plate is provided with an outwardly extending tongue, and the other is provided with a slot, wherein the tongue can be inserted into the slot to connect the second top plate to the first top plate.

[0014] In one embodiment, the base of the tongue is provided with a reverse-locking groove, and when the tongue is inserted into the slot, the reverse-locking groove engages with the slot wall of the slot.

[0015] In one embodiment, the width of the root of the tongue is less than the width of the end of the tongue, the slot includes a first strip groove and a second strip groove that communicate at an obtuse angle, and the straight-line distance from the end of the first strip groove away from the second strip groove to the end of the second strip groove away from the first strip groove is greater than or equal to the width of the end of the tongue, the length of the first strip groove is greater than or equal to the width of the root of the tongue and less than the width of the end of the tongue, and when the tongue is inserted into the slot, the tongue is located in the first strip groove.

[0016] In one embodiment, there are multiple tongues, all of which are spaced apart, and the number and position of the slots correspond one-to-one with the number and position of the tongues.

[0017] In one embodiment, the first top plate is provided with a C-shaped groove that divides a portion of the first top plate to form the anti-detachment portion; and / or, the second top plate is provided with a C-shaped groove that divides a portion of the second top plate to form the anti-detachment portion.

[0018] In one embodiment, the first edge is perpendicular to the second edge.

[0019] In one embodiment, a first fold line is provided between the first side plate and the bottom plate, and the first side plate can be folded relative to the bottom plate along the first fold line;

[0020] A second fold line is provided between the second side plate and the bottom plate, and the second side plate can be folded relative to the bottom plate along the second fold line;

[0021] A third fold line is provided between the first top plate and the first side plate, and the first top plate can be folded relative to the first side plate along the third fold line;

[0022] A fourth fold line is provided between the second top plate and the second side plate, and the second top plate can be folded relative to the second side plate along the fourth fold line.

[0023] In one embodiment, the first top plate, the second top plate, the first side plate, the second side plate, and the bottom plate are integrally formed; and / or, the photovoltaic module corner protectors are made of paper.

[0024] In one embodiment, both the first top plate and the second top plate are provided with at least one anti-detachment part, and the anti-detachment part on the first top plate is used to abut against the inner side of the long frame of the photovoltaic module, and the anti-detachment part on the second top plate is used to abut against the inner side of the short frame of the photovoltaic module.

[0025] In the aforementioned photovoltaic module corner protector, the first top plate and the second top plate are detachably connected. When the first top plate and the second top plate are connected, the first top plate, the second top plate, the first side plate, the second side plate, and the bottom plate together form a receiving groove to cover the top corner of the frame. Simultaneously, the first top plate and / or the second top plate are also provided with an anti-detachment part that can fold inward into the receiving groove. By folding the anti-detachment part inward, it can abut against the inner surface of the frame to limit the position of the photovoltaic module corner protector, thus stably locking the photovoltaic module corner protector to the frame of the photovoltaic module and preventing it from falling off, thereby improving the protective effect of the photovoltaic module corner protector on the photovoltaic module frame. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the structure of a photovoltaic module corner protector in its unfolded state, according to one embodiment.

[0030] Figure 2 To be Figure 1 The diagram shows the process of installing the photovoltaic module corner protectors onto the photovoltaic module.

[0031] Figure 3 for Figure 1 The diagram shows the interaction between the photovoltaic module's corner protectors in the folded state and the photovoltaic module.

[0032] Figure 4 for Figure 1 The image shows a magnified view of the photovoltaic module's corner protectors in area A.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Base plate; 11. First edge; 12. Second edge; 21. First side plate; 22. Second side plate; 31. First top plate; 32. Second top plate; 41. Tongue; 411. Reverse snap groove; 42. Slot; 421. First strip groove; 422. Second strip groove; 50. Anti-detachment part; 51. Punch groove; 52. Notch; 61. First crease line; 62. Second crease line; 63. Third crease line; 64. Fourth crease line; 70. Frame; 71. Long frame; 72. Short frame. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly 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 mechanical connection or an electrical connection; 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] One embodiment of this application provides a corner protector for a photovoltaic module, used to cover the top corner of the frame 70 of the photovoltaic module to protect the photovoltaic module. See also Figure 1 , Figure 1A schematic diagram illustrating the structure of a photovoltaic module corner protector in its unfolded state is shown. Specifically, the photovoltaic module corner protector of one embodiment includes a base plate 10, a first side plate 21, a second side plate 22, a first top plate 31, and a second top plate 32. The base plate 10 includes a first edge 11 and a second edge 12 that intersect. One end of the first side plate 21 is connected to the first edge 11, and the other end of the first side plate 21 is connected to the first top plate 31. One end of the second side plate 22 is connected to the second edge 12, and the other end of the second side plate 22 is connected to the second top plate 32. The second top plate 32 is detachably connected to the first top plate 31. Figure 3 When the second top plate 32 is connected to the first top plate 31, the first top plate 31, the second top plate 32, the first side plate 21, the second side plate 22 and the bottom plate 10 together form a receiving groove, which is used to accommodate the top corner of the frame 70 of the photovoltaic module; wherein, the first top plate 31 and / or the second top plate 32 are also provided with an anti-detachment part 50 that can be folded into the receiving groove, and the anti-detachment part 50 is used to abut against the inner side of the frame 70.

[0042] Specifically, if Figure 1 As shown, the photovoltaic module's corner protectors are initially in a flat, unfolded state. Combined with... Figure 2 When corner protectors are needed for photovoltaic modules, first place the top corner of the photovoltaic module frame 70 on the base plate 10, aligning the outer side of the long frame 71 with the first edge 11 and the outer side of the short frame 72 with the second edge 12. Then fold the first side plate 21 and the second side plate 22 so that the first side plate 21 covers the outer side of the long frame 71 and the second side plate 22 covers the outer side of the short frame 72. Figure 3 Then, the first top plate 31 and the second top plate 32 are folded over and connected, so that the first top plate 31, the second top plate 32, the first side plate 21, the second side plate 22 and the bottom plate 10 together form a receiving groove to cover the top corner of the frame 70. Finally, the anti-detachment part 50 is folded into the receiving groove so that the anti-detachment part 50 abuts against the inner side of the frame 70 to limit the corner protector of the photovoltaic module, thereby stably locking the corner protector of the photovoltaic module on the frame 70 of the photovoltaic module, preventing the corner protector of the photovoltaic module from falling off, thereby improving the protective effect of the corner protector of the photovoltaic module on the frame 70 of the photovoltaic module.

[0043] See Figure 1In one embodiment, the first top plate 31 has an outwardly extending tongue 41, and the second top plate 32 has a slot 42. The tongue 41 can be inserted into the slot 42. Thus, by inserting the tongue 41 into the slot 42, a quick connection between the second top plate 32 and the first top plate 31 can be achieved without the need for other tools. This is simple to operate, low in cost, and improves the installation efficiency of photovoltaic module corner protectors. It is worth noting that in another embodiment, the tongue 41 can also be provided on the second top plate 32, and correspondingly, the slot 42 can be provided on the first top plate 31. This also allows for a quick connection between the first top plate 31 and the second top plate 32. Exemplarily, the first top plate 31 and the second top plate 32 can also be connected by adhesive or Velcro, thus eliminating the need for the tongue 41 and slot 42.

[0044] Continue to see Figure 1 Optionally, in one embodiment, the root of the tongue 41 is provided with a reverse locking groove 411, wherein the root of the tongue 41 refers to the end of the tongue 41 that connects to the first top plate 31. Furthermore, after the tongue 41 is inserted into the slot 42, the reverse locking groove 411 engages with the slot wall of the slot 42, thereby preventing the tongue 41 from coming out of the slot 42 and improving the connection stability between the first top plate 31 and the second top plate 32.

[0045] Specifically, by creating a reverse-locking groove 411 at the root of the tongue 41, the width of the root of the tongue 41 can be made smaller than the width of the end of the tongue 41, where the end of the tongue 41 refers to the end of the tongue 41 furthest from the first top plate 31. See also Figure 4 The slot 42 includes a first strip groove 421 and a second strip groove 422 connected at an obtuse angle. The straight-line distance L1 from the end of the first strip groove 421 away from the second strip groove 422 to the end of the second strip groove 422 away from the first strip groove 421 is greater than or equal to the width of the end of the tongue 41, thus ensuring that the end of the tongue 41 can pass smoothly through the slot 42. Furthermore, the length of the first strip groove 421 is greater than or equal to the width of the root of the tongue 41 and less than the width of the end of the tongue 41. When the tongue 41 is inserted into the slot 42, it is located in the first strip groove 421. Thus, when the tongue 41 is inserted into place, the root of the tongue 41 can be inserted into the first strip groove 421, while the end of the tongue 41 cannot be dislodged from the first strip groove 421, ensuring that the tongue 41 is stably confined within the slot 42 and preventing it from dislodging.

[0046] Optionally, in one embodiment, there are multiple tongues 41, all of which are spaced apart. The number and position of the slots 42 correspond one-to-one with the number and position of the tongues 41. By inserting multiple tongues 41 into the slots 42 in a one-to-one correspondence, the connection stability between the first top plate 31 and the second top plate 32 can be further improved. For example, there can be two tongues 41, which are spaced apart on the side of the first top plate 31. Correspondingly, there are also two slots 42, which are spaced apart on the second top plate 32. After the first top plate 31 and the second top plate 32 are folded, the position of the tongues 41 corresponds one-to-one with the position of the slots 42, so that the tongues 41 can be inserted into the slots 42 one-to-one. It is worth noting that in other embodiments, the number of tongues 41 and slots 42 can also be 3, 4, 5 or more, etc., which is not limited here.

[0047] Optionally, in one embodiment, both the first top plate 31 and the second top plate 32 have at least one anti-detachment portion 50. Exemplarily, the number of anti-detachment portions 50 on the first top plate 31 can be one, two, three, or more, and these portions are spaced apart along the extension direction of the long frame 71. Similarly, the number of anti-detachment portions 50 on the second top plate 32 can also be one, two, three, or more, and these portions are spaced apart along the extension direction of the long frame 71. Further, the anti-detachment portions 50 on the first top plate 31 abut against the inner side of the long frame 71 of the photovoltaic module, and the anti-detachment portions 50 on the second top plate 32 abut against the inner side of the short frame 72 of the photovoltaic module. This restricts the movement of the photovoltaic module corner protectors in the length, width, and diagonal directions of the photovoltaic module, further improving the installation stability of the photovoltaic module corner protectors.

[0048] Continue to see Figure 4 In one embodiment, the first top plate 31 is provided with a C-shaped groove 51, that is, the groove 51 has an annular structure with a notch 52. The groove 51 divides part of the first top plate 31 to form an anti-detachment part 50, so as to ensure that the anti-detachment part 50 can fold inward relative to the first top plate 31 to abut against the inner surface of the long frame 71. Moreover, the anti-detachment part 50 can still be connected to the first top plate 31 at the notch 52 position of the groove 51 to prevent the anti-detachment part 50 from falling off. Similarly, the second top plate 32 can also be provided with a C-shaped groove 51. The groove 51 divides part of the second top plate 32 to form an anti-detachment part 50, so as to ensure that the anti-detachment part 50 can fold inward relative to the second top plate 32 to abut against the inner surface of the short frame 72. Moreover, the anti-detachment part 50 can still be connected to the second top plate 32 at the notch 52 position of the groove 51 to prevent the anti-detachment part 50 from falling off.

[0049] Optionally, in one embodiment, the first edge 11 and the second edge 12 are perpendicular to each other. This ensures that, in the folded state, the first top plate 31, the second top plate 32, the first side plate 21, the second side plate 22, and the bottom plate 10 together form a right-angled receiving groove, allowing the folded photovoltaic module corner protector to fit more closely to the top corner of the frame 70. This further improves the installation stability of the photovoltaic module corner protector.

[0050] See Figure 1 In one embodiment, a first crease line 61 is provided between the first side plate 21 and the bottom plate 10, and the first side plate 21 can be folded relative to the bottom plate 10 along the first crease line 61. A second crease line 62 is provided between the second side plate 22 and the bottom plate 10, and the second side plate 22 can be folded relative to the bottom plate 10 along the second crease line 62. A third crease line 63 is provided between the first top plate 31 and the first side plate 21, and the first top plate 31 can be folded relative to the first side plate 21 along the third crease line 63. A fourth crease line 64 is provided between the second top plate 32 and the second side plate 22, and the second top plate 32 can be folded relative to the second side plate 22 along the fourth crease line 64. Furthermore, the thickness of the photovoltaic module corner protector at the first crease line 61, the second crease line 62, the third crease line 63, and the fourth crease line 64 is thinner than that in other areas, making it easier for the photovoltaic module corner protector to be folded at the first crease line 61, the second crease line 62, the third crease line 63, and the fourth crease line 64.

[0051] Optionally, in one embodiment, the photovoltaic module corner protectors are made of paper. Paper is low-cost and lightweight, facilitating transportation and cost control. For example, the photovoltaic module corner protectors can be made of corrugated paper, which has high compressive strength and can further improve the protective effect on the photovoltaic module frame 70.

[0052] Furthermore, the first top plate 31, the second top plate 32, the first side plate 21, the second side plate 22 and the bottom plate 10 are integrally formed. For example, in one embodiment, the first top plate 31, the second top plate 32, the first side plate 21, the second side plate 22 and the bottom plate 10 can be integrally cut and punched from a piece of cardboard.

[0053] In other embodiments, the photovoltaic module corner protectors may also be made of plastic or other materials, and may also be formed by detachably splicing multiple plates; no restrictions are imposed here.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic module corner protector, characterized in that, include: The base plate (10) includes a first edge (11) and a second edge (12) that intersect each other; The first side plate (21) has one end connected to the first edge (11); The first top plate (31) is connected to the other end of the first side plate (21); The second side plate (22) has one end connected to the second edge (12); as well as The second top plate (32) is connected to the other end of the second side plate (22); the second top plate (32) is detachably connected to the first top plate (31), and when the second top plate (32) is connected to the first top plate (31), the first top plate (31), the second top plate (32), the first side plate (21), the second side plate (22) and the bottom plate (10) together form a receiving groove, which is used to accommodate the top corner of the frame (70) of the photovoltaic module; The first top plate (31) and the second top plate (32) are both provided with anti-detachment parts (50) that can be folded into the receiving groove. The anti-detachment part (50) on the first top plate (31) is used to abut against the inner side of the long frame (71) of the photovoltaic module, and the anti-detachment part (50) on the second top plate (32) is used to abut against the inner side of the short frame (72) of the photovoltaic module. One of the first top plate (31) and the second top plate is provided with an outwardly extending tongue (41), and the other is provided with a slot (42). The tongue (41) can be inserted into the slot (42) so that the second top plate (32) is connected to the first top plate (31).

2. The photovoltaic module corner protector according to claim 1, characterized in that, The base of the tongue (41) is provided with a reverse groove (411), and when the tongue (41) is inserted into the slot (42), the groove wall of the reverse groove (411) engages with the groove wall of the slot (42).

3. The photovoltaic module corner protector according to claim 2, characterized in that, The width of the root of the tongue (41) is less than the width of the end of the tongue (41). The slot (42) includes a first strip groove (421) and a second strip groove (422) connected at an obtuse angle. The straight-line distance from the end of the first strip groove (421) away from the second strip groove (422) to the end of the second strip groove (422) away from the first strip groove (421) is greater than or equal to the width of the end of the tongue (41). The length of the first strip groove (421) is greater than or equal to the width of the root of the tongue (41) and less than the width of the end of the tongue (41). When the tongue (41) is inserted into the slot (42), the tongue (41) is located in the first strip groove (421).

4. The photovoltaic module corner protector according to claim 1, characterized in that, There are multiple tongues (41), all of which are spaced apart. The number and position of the slots (42) correspond one-to-one with the number and position of the tongues (41).

5. The photovoltaic module corner protector according to claim 1, characterized in that, The first top plate (31) is provided with a C-shaped groove (51), which divides a portion of the first top plate (31) to form the anti-detachment part (50); and / or, the second top plate (32) is provided with a C-shaped groove (51), which divides a portion of the second top plate (32) to form the anti-detachment part (50).

6. The photovoltaic module corner protector according to claim 1, characterized in that, The first edge (11) is perpendicular to the second edge (12).

7. The photovoltaic module corner protector according to claim 1, characterized in that: A first fold line (61) is provided between the first side plate (21) and the bottom plate (10), and the first side plate (21) can be folded relative to the bottom plate (10) along the first fold line (61); A second fold line (62) is provided between the second side plate (22) and the bottom plate (10), and the second side plate (22) can be folded relative to the bottom plate (10) along the second fold line (62); A third fold line (63) is provided between the first top plate (31) and the first side plate (21), and the first top plate (31) can be folded relative to the first side plate (21) along the third fold line (63); A fourth fold line (64) is provided between the second top plate (32) and the second side plate (22), and the second top plate (32) can be folded relative to the second side plate (22) along the fourth fold line (64).

8. The photovoltaic module corner protector according to claim 1, characterized in that, The first top plate (31), the second top plate (32), the first side plate (21), the second side plate (22) and the bottom plate (10) are integrally formed; and / or, the photovoltaic module corner protectors are made of paper.