Photovoltaic module and protective structure for its frame

Abstract

This application relates to a protective structure for a photovoltaic module and its frame, used to enclose a first and a second frame that are perpendicular to each other. The first frame has a first B plate and a first C plate, and the second frame has a second B plate and a second C plate. The protective structure includes a main board for covering part of the light-facing surface of the photovoltaic module, and a first and a second protective plate that can be folded or unfolded relative to the main board. The periphery of the main board includes a first side and a second side that are perpendicular to each other. The first protective plate is connected to the first side and is divided into a first B protective plate for covering the first B plate and a first C protective plate for covering the first C plate. The second protective plate is connected to the second side and is divided into a second B protective plate for covering the second B plate and a second C protective plate for covering the second C plate. The width of the first C protective plate is greater than the width of the second C protective plate. This effectively protects the frame of the photovoltaic module with two different C plate widths used simultaneously.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic modules, and in particular to a protective structure for a photovoltaic module and its frame. Background Technology

[0002] Photovoltaic modules (also called solar panels) are the core and most important component of a solar power system. They are composed of numerous individual solar cells connected in series and parallel, tightly sealed, and then assembled with a frame. Their function is to convert solar energy into electrical energy, which is then stored in batteries or used to power loads. During the transportation of photovoltaic modules, to prevent damage from collisions, paper corner protectors are typically used during the packaging process to protect the modules, especially their frames.

[0003] Most current photovoltaic (PV) modules use frames with relatively wide C-plates. However, with decreasing costs and market demand, some PV modules combine two types of frames with different C-plate widths, meaning a single PV module contains frames of two different C-plate widths. Currently, however, there is no specific protective structure for the frames of such PV modules. Utility Model Content

[0004] Based on this, a protective structure for the frame of a photovoltaic module is provided to effectively protect the two adjacent frames of the photovoltaic module.

[0005] A protective structure for a photovoltaic module frame is disclosed, used to wrap a first frame and a second frame perpendicular to each other. The first frame has a first B plate and a first C plate, and the second frame has a second B plate and a second C plate. The protective structure includes a main board for covering part of the light-facing surface of the photovoltaic module, and a first protective plate and a second protective plate that can be folded or unfolded relative to the main board. The periphery of the main board includes a first side and a second side perpendicular to each other. The first protective plate is connected to the first side and forms a first crease at the connection. The first protective plate is provided with a second crease arranged parallel to and at intervals from the first crease. The second crease divides the first protective plate into a first B protective plate for covering the first B plate and a first C protective plate for covering the first C plate. The second protective plate is connected to the second side and forms a third crease at the connection. The second protective plate is provided with a fourth crease arranged parallel to and at intervals from the third crease. The fourth crease divides the second protective plate into a second B protective plate for covering the second B plate and a second C protective plate for covering the second C plate. The width of the first C protective plate is greater than the width of the second C protective plate.

[0006] In one embodiment, the side of the first B-side plate that connects the first crease and the second crease and is located adjacent to the second side is defined as the first B-side, and the first B-side and the second side are located on the same straight line; the side of the second B-side plate that connects the third crease and the fourth crease and is located adjacent to the first side is defined as the second B-side, and the second B-side and the first side are located on the same straight line.

[0007] In one embodiment, both the first B-plate and the second B-plate are rectangular.

[0008] In one embodiment, the side of the first C-plate facing the photovoltaic module is defined as the inner side; the protective structure further includes an inner protective plate for covering the inner side, the first C-plate is connected between the first B-plate and the inner protective plate, and the inner protective plate can be folded or unfolded relative to the first C-plate to form a fifth crease between the inner protective plate and the first C-plate.

[0009] In one embodiment, the first frame further includes a first inner B plate, the first B plate and the first inner B plate are arranged side by side with intervals from the outside to the inside, and are perpendicularly connected to the first C plate near the middle position; the protective structure further includes a first fixed guard plate for covering part of the first inner B plate, the first fixed guard plate is connected to the inner guard plate, and the first fixed guard plate can be folded or unfolded relative to the inner guard plate so that a sixth crease is formed between the first fixed guard plate and the inner guard plate.

[0010] In one embodiment, the second frame further includes a second inner B plate, the second B plate and the second inner B plate are arranged side by side with intervals from the outside to the inside, and the two ends of the second C plate are respectively perpendicularly connected to the second B plate and the second inner B plate; the protective structure further includes a second fixed guard plate for covering part of the second inner B plate, the second fixed guard plate is connected to the second C guard plate, and the second fixed guard plate can be folded or unfolded relative to the second C guard plate so that a seventh crease is formed between the second fixed guard plate and the second C guard plate.

[0011] In one embodiment, the second fixed guard plate is provided with a third fixed guard plate extending along the length direction of the second side. The third fixed guard plate can be folded or unfolded relative to the second fixed guard plate. In the unfolded state, the second fixed guard plate and the third fixed guard plate are arranged sequentially along the length direction of the second side. In the folded state, the third fixed guard plate covers the second inner B plate.

[0012] In one embodiment, when the third fixing plate is in a folded state, at least a portion of the third fixing plate is stacked and connected to at least a portion of the first fixing plate.

[0013] In one embodiment, the first fixed guard plate has a first arc portion recessed toward the sixth crease on its side edge away from the sixth crease, and / or the second fixed guard plate has a second arc portion recessed toward the seventh crease on its side edge away from the seventh crease.

[0014] This application also provides a photovoltaic module including the protective structure as described in any of the preceding embodiments.

[0015] Compared with existing technologies, the protective structure provided in this application includes a main board, a first protective plate, and a second protective plate. After the main board covers a portion of the light-facing surface of the photovoltaic module, the first B and first C protective plates in the first protective plate can be folded from an unfolded state to a folded state that covers the first B and first C plates. Similarly, the second B and second C protective plates in the second protective plate can be folded from an unfolded state to a folded state that covers the second B and second C plates. By making the width of the first C protective plate greater than the width of the second C protective plate, this application enables the protective structure to cover the first C and second C plates with different widths, thereby effectively protecting the frame of the two different C-plate widths used simultaneously in the photovoltaic module. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the 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.

[0017] Figure 1 This is a schematic diagram of the protective structure of the photovoltaic module frame in an unfolded state according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the protective structure of the photovoltaic module frame in a folded state according to one embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the protective structure assembled in a photovoltaic module according to one embodiment of this application;

[0020] Figure 4 This is a schematic diagram of a photovoltaic module.

[0021] Reference numerals: 1. Photovoltaic module; 11. Frame; 111. First frame; 1111. First B-plate; 1112. First C-plate; 1113. Inner side; 1114. First inner B-plate; 112. Second frame; 1121. Second B-plate; 1122. Second C-plate; 1123. Second inner B-plate; 12. Laminate; 121. Light-facing surface;

[0022] 2. Protective structure; 21. Main board; 2101. First side; 2102. Second side;

[0023] 22. First protective plate; 221. First B protective plate; 22101. First B side; 222. First C protective plate; 223. Inner protective plate; 224. First fixed protective plate; 225. First arc portion; 23. Second protective plate; 231. Second B protective plate; 23101. Second B side; 232. Second C protective plate; 233. Second fixed protective plate; 234. Third fixed protective plate; 235. Second arc portion;

[0024] 201. First crease; 202. Second crease; 203. Third crease; 204. Fourth crease; 205. Fifth crease; 206. Sixth crease; 207. Seventh crease. Detailed Implementation

[0025] 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.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0027] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0030] Please see Figures 1 to 4 This application provides a protective structure 2 for the frame 11 of a photovoltaic module 1, used to protect the photovoltaic module 1, and particularly to protect the frame 11 of the photovoltaic module 1. Please refer to... Figure 4 The frame 11 includes a first frame 111 and a second frame 112 that are perpendicular to each other. The first frame 111 has a first B plate 1111 and a first C plate 1112 that are perpendicular to each other, and the second frame 112 has a second B plate 1121 and a second C plate 1122 that are perpendicular to each other. In this embodiment, the width of the first C plate 1112 is different from the width of the second C plate 1122. It should be noted that since the first frame 111 and the second frame 112 are perpendicular to each other, the width direction of the first C plate 1112 is also perpendicular to the width direction of the second C plate 1122. Therefore, the width of the first C plate 1112 refers to the shortest distance between the first C plate 1112 and the second C plate 1122 along its length. Similarly, the width of the second C plate 1122 refers to the shortest distance between the second C plate 1122 and the first C plate 1112 along its length. Furthermore, the photovoltaic module 1 also includes a laminate 12 that is fixedly connected to both the first frame 111 and the second frame 112. The laminate 12 has a long side and a short side that are perpendicular to each other. The first frame 111 is fixedly connected to one of the long side and the short side, and the second frame 112 is fixedly connected to the other side.

[0031] The following explanation uses the example of a first C-plate 1112 having a width greater than the second C-plate 1122, and a first border 111 fixedly connected to the short side and a second border 112 fixedly connected to the long side.

[0032] Please see Figures 1 to 3The protective structure 2 provided in this application is used to wrap the perpendicular first frame 111 and the second frame 112. The protective structure 2 includes a main board 21 for covering part of the light-facing surface 121 of the photovoltaic module 1, and a first protective plate 22 and a second protective plate 23 that can be folded or unfolded relative to the main board 21. The periphery of the main board 21 includes a perpendicular first side 2101 and a second side 2102. The first protective plate 22 is connected to the first side 2101 and forms a first crease 201 at the connection point (i.e., as shown in the image). Figure 1 and Figure 2 As shown, the first side 2101 and the first crease 201 are located on the same straight line. The first guard plate 22 is provided with a second crease 202 that is parallel to and spaced apart from the first crease 201 (i.e., as shown). Figure 1 and Figure 2 As shown, the second side 2102 and the second crease 202 are on the same straight line. The second crease 202 divides the first protective plate 22 to form a first B protective plate 221 for covering the first B plate 1111 and a first C protective plate 222 for covering the first C plate 1112. The second protective plate 23 is connected to the second side 2102, and a third crease 203 is formed at the connection. The second protective plate 23 is provided with a fourth crease 204 arranged parallel to and at intervals with the third crease 203. The fourth crease 204 divides the second protective plate 23 to form a second B protective plate 231 for covering the second B plate 1121 and a second C protective plate 232 for covering the second C plate 1122. The width of the first C protective plate 222 is greater than the width of the second C protective plate 232.

[0033] Furthermore, since the first B plate 1111 and the first C plate 1112 in the first frame 111 are perpendicular, the first C guard plate 222 can be folded or unfolded relative to the first B guard plate 221 about the length direction of the second crease 202 as an axis of rotation, so as to cover the first C plate 1112. Similarly, since the second B plate 1121 and the second C plate 1122 in the second frame 112 are perpendicular, the second C guard plate 232 can be folded or unfolded relative to the second B guard plate 231 about the length direction of the fourth crease 204 as an axis of rotation, so as to cover the second C plate 1122.

[0034] It is understood that the protective structure 2 has an unfolded state and a folded state. When the protective structure 2 is in the unfolded state, it is a flat plate structure with all protective panels on the same plane; please refer to [link / reference]. Figure 1 Please refer to this. Figure 2 and Figure 3 When the protective structure 2 is in a folded state and assembled on the photovoltaic module 1, the main board 21 covers part of the light-facing surface 121 of the photovoltaic module 1. Figure 3(Laminator 12 in photovoltaic module 1 is omitted). The first B-plate 221 and the first C-plate 222 of the first protective plate 22 cover the first B-plate 1111 and the first C-plate 1112 of the first frame 111, respectively. The second B-plate 231 and the second C-plate 232 of the second protective plate 23 cover the second B-plate 1121 and the second C-plate 1122 of the second frame 112, respectively. In this embodiment, the width of the first C-plate 222 is greater than the width of the second C-plate 232. Thus, it is possible to simultaneously cover the first C-plate 1112 and the second C-plate 1122 with different widths, thereby effectively protecting the frame 11 of the photovoltaic module 1 with two different C-plate widths used at the same time.

[0035] The protective structure 2 is used as follows: the main board 21 is placed on the laminate 12 of the photovoltaic module 1, and the first side 2101 of the main board 21 is aligned with the short side of the laminate 12, and the second side 2102 is aligned with the long side. The assembly of the protective structure 2 and the photovoltaic module 1 is completed in the process of folding the protective structure 2 from the unfolded state to the folded state.

[0036] It should also be noted that for photovoltaic module 1, the first C-plate 1112 and the second C-plate are located in the same plane. Therefore, regardless of whether the protective structure 2 is in the unfolded or folded state, the first C-plate 222 and the second C-plate 232 are located in the same plane. The width of the first C-plate 222 refers to the shortest distance of the first C-plate 222 in the extension direction of the second side 2102. Similarly, the width of the second C-plate 232 refers to the shortest distance of the second C-plate 232 in the extension direction of the first side 2101.

[0037] In one embodiment, the side of the first B-side panel 221 that connects the first crease 201 and the second crease 202 and is located adjacent to the second side 2102 is defined as the first B-side 22101, and the first B-side 22101 and the second side 2102 are on the same straight line; the side of the second B-side panel 231 that connects the third crease 203 and the fourth crease 204 and is located adjacent to the first side 2101 is defined as the second B-side 23101, and the second B-side 23101 and the first side 2101 are on the same straight line. That is, the first B-side 22101 is perpendicular to the first side 2101, and the second B-side 23101 is perpendicular to the second side 2102.

[0038] It is understandable that since the first frame 111 and the second frame 112 are perpendicular, the first B plate 1111 and the second B plate 1121 are also perpendicular. The perpendicular intersection of the first B plate 1111 and the second B plate 1121 is defined as the perpendicular line. Furthermore, since the first B side 22101 is perpendicular to the first side 2101, and the first B side 22101 and the second side 2102 are on the same straight line, when the protective structure 2 is in the folded state, the first B side 22101 is on the same straight line as the perpendicular line. Similarly, when the protective structure 2 is in the folded state, the second B side 23101 is also on the same straight line as the perpendicular line. Thus, when the protective structure 2 is in the folded state, the first B protective plate 221 and the second B protective plate 231 can completely cover the connection point (i.e., the intersection) between the first frame 111 and the second frame 112, thereby better protecting the photovoltaic module 1, especially better protecting the frame 11 of the photovoltaic module 1.

[0039] Furthermore, both the first B-protection plate 221 and the second B-protection plate 231 are rectangular. This provides better protection for the photovoltaic module 1, especially for the frame 11 of the photovoltaic module 1.

[0040] In one embodiment, the side of the first C-plate 1112 facing the photovoltaic module 1 is defined as the inner side 1113. The protective structure 2 also includes an inner protective plate 223 for covering the inner side 1113. The first C-protective plate 222 is connected between the first B-protective plate 221 and the inner protective plate 223, and the inner protective plate 223 can be folded or unfolded relative to the first C-protective plate 222 to form a fifth crease 205 between the inner protective plate 223 and the first C-protective plate 222. It should be noted that the first C-plate 1112 is a flat structure. It can be understood that when the protective structure 2 is in the folded state, along the thickness direction of the first C-plate 1112, the first C-protective plate 222 and the inner protective plate 223 are respectively located on both sides of the first C-plate 1112. In this way, the inner protective plate 223 can be held onto the first C-plate 1112, making the connection between the protective structure 2 and the frame 11 of the photovoltaic module 1 tighter.

[0041] Furthermore, the first frame 111 also includes a first inner B-plate 1114. The first B-plate 1111 and the first inner B-plate 1114 are arranged side by side with intervals from the outside to the inside, and are perpendicularly connected to the first C-plate 1112 near the middle. The protective structure 2 also includes a first fixed protective plate 224 for covering part of the first inner B-plate 1114. The first fixed protective plate 224 is connected to the inner protective plate 223, and the first fixed protective plate 224 can be folded or unfolded relative to the inner protective plate 223 to form a sixth crease 206 between the first fixed protective plate 224 and the inner protective plate 223. In this way, the protective structure 2 can completely cover the first C-plate 1112 in the width direction. Moreover, the first fixed protective plate 224 facilitates the removal of the protective structure 2 from the photovoltaic module 1.

[0042] Furthermore, the first fixed guard plate 224 has a first arcuate portion 225 recessed towards the sixth crease 206 on its side edge opposite to the sixth crease 206. Thus, the first arcuate portion 225 simplifies the installation or removal of the protective structure 2.

[0043] In one embodiment, the second frame 112 further includes a second inner B plate 1123, with the second B plate 1121 and the second inner B plate 1123 arranged side-by-side at intervals from the outside in. The two ends of the second C plate 1122 are perpendicularly connected to the second B plate 1121 and the second inner B plate 1123, respectively. The protective structure 2 also includes a second fixed protective plate 233 for partially covering the second inner B plate 1123. The second fixed protective plate 233 is connected to the second C protective plate 232, and the second fixed protective plate 233 can be folded or unfolded relative to the second C protective plate 232 to form a seventh crease 207 between the second fixed protective plate 233 and the second C protective plate 232. Thus, the second fixed protective plate 233 facilitates the removal of the protective structure 2 from the photovoltaic module 1, and in the width direction of the second C plate 1122, it ensures that the protective structure 2 can completely cover the second C plate 1122.

[0044] Furthermore, the second fixed guard plate 233 is provided with a third fixed guard plate 234 extending along the length direction of the second side 2102. The third fixed guard plate 234 can be folded or unfolded relative to the second fixed guard plate 233. When the protective structure 2 is in the unfolded state, the second fixed guard plate 233 and the third fixed guard plate 234 are arranged sequentially along the length direction of the second side 2102. When the protective structure 2 is in the folded state, the third fixed guard plate 234 covers the second inner B plate 1123. In this way, the protective area of ​​the protective structure 2 on the frame 11 can be increased, thereby better protecting the frame 11.

[0045] In one embodiment, when the third fixing plate 234 is in a folded state, at least a portion of the third fixing plate 234 is stacked and connected to at least a portion of the first fixing plate 224. This makes the protective structure 2 more robust when folded.

[0046] In one embodiment, the second fixing plate 233 has a second arcuate portion 235 recessed toward the seventh crease 207 on its side edge opposite to the seventh crease 207. Thus, the second arcuate portion 235 simplifies the installation or removal of the protective structure 2.

[0047] Schematic illustration: When the protective structure 2 is in the unfolded state, the first B-side 221 is rectangular. The side of the first B-side 221 that corresponds to the first B-side 22101 along the length direction of the first side 2101 is defined as the first B' side. The side of the first C-side 1112 that connects the second crease 202 and the fifth crease 205 and is adjacent to the first B' side is defined as the first C' side. The side of the inner protective plate 223 that connects the fifth crease 205 and the sixth crease 206 and is adjacent to the first B' side is defined as the first D' side. The side of the first fixed protective plate 224 that connects the sixth crease 206 and is adjacent to the first B' side is defined as the first E' side. The first B' side, the first C' side, the first D' side, and the first E' side are located on the same straight line.

[0048] Schematic illustration: When the protective structure 2 is in the unfolded state, the second B-side 231 is rectangular. The side of the second B-side 231 that corresponds to the second B-side 23101 along the length direction of the second side 2102 is defined as the second B' side. The side of the second C-side 1122 that connects the fourth crease 204 and the seventh crease 207 and is adjacent to the second B' side is defined as the second C' side. The side of the second fixed protective plate 233 that connects the seventh crease 207 and is adjacent to the second B' side is defined as the second D' side. The second B' side, the second C' side, and the second D' side are located on the same straight line.

[0049] It should also be noted that each crease has a certain width to allow for the bending transition between the protective plates on both sides of the crease. Taking the first crease 201 as an example, the width of the first crease 201 refers to the shortest distance of the first crease 201 along the length direction of the second side 2102. Along the length direction of the second side 2102, the first B protective plate 221 and the main plate 21 are located on both sides of the first crease 201. The first crease 201 allows the first B protective plate 221 to be folded relative to the main plate 21.

[0050] This application also provides a photovoltaic module 1, including a protective structure 2 as in the previous embodiment, wherein the protective structure 2 is in a folded state to protect the frame 11 of the photovoltaic module 1.

[0051] It should also be noted that the protective structure 2 in this embodiment is applicable to both frames 11 with and without an A-side. In embodiments where the frame 11 has no A-side, the main board 21 of the protective structure 2 directly contacts the laminate 12 of the photovoltaic module 1 to partially cover the laminate 12. In embodiments where the frame 11 has an A-side, the A-side is located between the main board 21 and the laminate 12 along the thickness direction of the laminate 12, and the main board 21 can cover part of the laminate 12. This application does not impose any limitations on this.

[0052] 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.

[0053] 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 scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A protective structure for the frame of a photovoltaic module, used to enclose a first frame (111) and a second frame (112) perpendicular to each other, the first frame (111) having a first B plate (1111) and a first C plate (1112), and the second frame (112) having a second B plate (1121) and a second C plate (1122), characterized in that: The protective structure (2) includes a main board (21) for covering part of the light-facing surface (121) of the photovoltaic module and a first protective plate (22) and a second protective plate (23) that can be folded or unfolded relative to the main board (21). The periphery of the main board (21) includes a first side (2101) and a second side (2102) that are perpendicular to each other. The first protective plate (22) is connected to the first side (2101) and a first crease (201) is formed at the connection. The first protective plate (22) is provided with a second crease (202) arranged parallel to and at intervals with the first crease (201). The second crease (202) divides the first protective plate (22) into a first B protective plate (221) for covering the first B plate (1111) and a first C protective plate (222) for covering the first C plate (1112). The second guard plate (23) is connected to the second side (2102) and a third crease (203) is formed at the connection. The second guard plate (23) is provided with a fourth crease (204) arranged parallel to and at intervals with the third crease (203). The fourth crease (204) divides the second guard plate (23) into a second B guard plate (231) for covering the second B plate (1121) and a second C guard plate (232) for covering the second C plate (1122). The width of the first C guard plate (222) is greater than the width of the second C guard plate (232).

2. The protective structure according to claim 1, characterized in that, The side of the first B-side plate (221) that connects the first crease (201) and the second crease (202) and is located adjacent to the second side (2102) is defined as the first B-side (22101), and the first B-side (22101) and the second side (2102) are located on the same straight line; the side of the second B-side plate (231) that connects the third crease (203) and the fourth crease (204) and is located adjacent to the first side (2101) is defined as the second B-side (23101), and the second B-side (23101) and the first side (2101) are located on the same straight line.

3. The protective structure according to claim 2, characterized in that, Both the first B-guard plate (221) and the second B-guard plate (231) are rectangular.

4. The protective structure according to claim 1, characterized in that, The side of the first C-plate (1112) facing the photovoltaic module is defined as the inner side (1113). The protective structure also includes an inner protective plate (223) for covering the inner side (1113), the first C protective plate (222) is connected between the first B protective plate (221) and the inner protective plate (223), and the inner protective plate (223) can be folded or unfolded relative to the first C protective plate (222) to form a fifth crease (205) between the inner protective plate (223) and the first C protective plate (222).

5. The protective structure according to claim 4, characterized in that, The first frame (111) also includes a first inner B plate (1114). The first B plate (1111) and the first inner B plate (1114) are arranged side by side with intervals from the outside to the inside, and are perpendicularly connected to the first C plate (1112) near the middle position. The protective structure further includes a first fixed guard plate (224) for covering part of the first inner B plate (1114), the first fixed guard plate (224) is connected to the inner guard plate (223), and the first fixed guard plate (224) can be folded or unfolded relative to the inner guard plate (223) so that a sixth crease (206) is formed between the first fixed guard plate (224) and the inner guard plate (223).

6. The protective structure according to claim 5, characterized in that, The second frame (112) also includes a second inner B plate (1123), the second B plate (1121) and the second inner B plate (1123) are arranged side by side with intervals from the outside to the inside, and the two ends of the second C plate (1122) are perpendicularly connected to the second B plate (1121) and the second inner B plate (1123) respectively. The protective structure further includes a second fixed guard plate (233) for covering part of the second inner B plate (1123), the second fixed guard plate (233) is connected to the second C guard plate (232), and the second fixed guard plate (233) can be folded or unfolded relative to the second C guard plate (232) so that a seventh crease (207) is formed between the second fixed guard plate (233) and the second C guard plate (232).

7. The protective structure according to claim 6, characterized in that, The second fixed guard plate (233) is provided with a third fixed guard plate (234) extending along the length direction of the second side (2102). The third fixed guard plate (234) can be folded or unfolded relative to the second fixed guard plate (233). In the unfolded state, the second fixed guard plate (233) and the third fixed guard plate (234) are arranged sequentially along the length direction of the second side (2102). In the folded state, the third fixed guard plate (234) covers the second inner B plate (1123).

8. The protective structure according to claim 7, characterized in that, When the third fixed guard plate (234) is in a folded state, at least a portion of the third fixed guard plate (234) is stacked and connected to at least a portion of the first fixed guard plate (224).

9. The protective structure according to claim 6, characterized in that, The first fixed guard plate (224) has a first arc portion (225) recessed in the direction of the sixth crease (206) on the side edge away from the sixth crease (206), and / or the second fixed guard plate (233) has a second arc portion (235) recessed in the direction of the seventh crease (207) on the side edge away from the seventh crease (207).

10. A photovoltaic module, characterized in that, Includes the protective structure as described in any one of claims 1 to 9.

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