A photovoltaic module, a photovoltaic power station and a frame structure applied to the photovoltaic module

Abstract

The utility model discloses a photovoltaic module, photovoltaic power station and be applied to the frame structure of photovoltaic module. The photovoltaic module can include: photovoltaic laminated spare and frame structure, frame structure includes: two first frames and at least one second frame, two first frames are divided in the opposite two first edges of photovoltaic laminated spare, and the extension direction of first frame is identical with the extension direction of its first edge, every first frame does not extend to two edge ends of its first edge, at least one second frame is set between two first frames, and the back of second frame is attached with photovoltaic laminated spare, the first spacing between the frame end of first frame and the edge end close to frame end is less than or equal to the second spacing between second frame and the second edge close to second frame. The frame structure can optimize the load distribution of photovoltaic module, makes photovoltaic module stress more evenly, reduces the risk of photovoltaic module stress concentration.

Description

Technical Field

[0001] This utility model relates to a photovoltaic module, a photovoltaic power station, and a frame structure applied to a photovoltaic module. Background Technology

[0002] In existing technologies, such as Figure 1 As shown, the existing frame 20' of the photovoltaic module is set around the edge of the photovoltaic laminate 10, and the existing frame 20' completely covers the edge of the photovoltaic laminate 10, i.e., the existing photovoltaic module. The entire photovoltaic module is supported by the existing frame 20' set at the edge of the photovoltaic laminate 10. The support of the existing frame 20' for the photovoltaic laminate 10 is distributed at the edge of the photovoltaic laminate 10, and the photovoltaic module lacks internal support, resulting in uneven load distribution of the photovoltaic module. This easily leads to stress concentration in the photovoltaic module, resulting in a relatively high risk of stress concentration in the photovoltaic module. Utility Model Content

[0003] In view of this, the present invention provides a photovoltaic module, a photovoltaic power station, and a frame structure applied to a photovoltaic module. The frame structure of the photovoltaic module can optimize the load distribution of the photovoltaic module. After applying a load to the photovoltaic module from the outside, it can make the photovoltaic module more uniformly stressed and reduce the risk of stress concentration in the photovoltaic module.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] In a first aspect, this utility model provides a photovoltaic module, including a photovoltaic laminate, wherein the back side of the photovoltaic laminate includes two opposing first edges and two opposing second edges, the two first edges and the two second edges being connected end-to-end; the photovoltaic module further includes a frame structure.

[0006] The border structure includes: two first borders and at least one second border.

[0007] The two first frame borders are respectively disposed on two opposite first edges of the photovoltaic laminate, and the extension direction of the first frame borders is consistent with the extension direction of the first edge on which they are located;

[0008] Each of the first border frames does not extend to the two edge ends of the first edge where it is located;

[0009] At least one second frame is disposed between the two first frames, and the second frame is in contact with the back of the photovoltaic laminate;

[0010] The first distance between the edge end of the first frame and the edge end near the edge end of the frame is less than or equal to the second distance between the second frame and the second edge near the second frame.

[0011] Secondly, this utility model embodiment provides a photovoltaic power station, comprising: two crossbeams and the photovoltaic modules provided in the first aspect embodiment, wherein...

[0012] The two crossbeams are respectively located on both sides of the center line on the back of the photovoltaic module;

[0013] The extension directions of the two beams are perpendicular to the extension directions of the two first frames of the frame structure included in the photovoltaic module;

[0014] The third distance between the crossbeam and the second edge of the photovoltaic module it is close to is greater than the first distance between the edge end of the first frame and the edge end of the frame end that is close to it.

[0015] Thirdly, this utility model embodiment provides a frame structure for photovoltaic modules, comprising: two first frame frames and at least one second frame frame, wherein...

[0016] At least one second border and the two first borders are either separate structures or a single structure;

[0017] The two first frame borders can be fitted to two opposite first edges of the photovoltaic laminate, and the extension direction of the first frame borders is consistent with the extension direction of the first edge to which they are located;

[0018] Each of the first border frames does not extend to the two edge ends of the first edge where it is located;

[0019] Based on the two first frame edges being assembled to the two opposite first edges of the photovoltaic laminate, at least one second frame edge may be assembled to the back side of the photovoltaic laminate and be in contact with the back side of the photovoltaic laminate, and at least one second frame edge is located between the two first frame edges;

[0020] The first distance between the edge end of the first frame and the edge end near the edge end of the frame is less than or equal to the second distance between the second frame and the second edge near the second frame.

[0021] The first aspect of the above-mentioned utility model has the following advantages or beneficial effects:

[0022] The photovoltaic module provided in this embodiment of the utility model has a mating structure in which two first frames disposed on two opposite first edges of the photovoltaic laminate but not extending to the edge ends of the first edges cooperate with at least one second frame disposed between the two first frames and attached to the back of the photovoltaic laminate. Furthermore, the first distance between the edge ends of the first frame and the edge ends of the frame ends is less than or equal to the second distance between the second frame and the second edge of the second frame. This allows the photovoltaic module to be supported more evenly inside and at its edges, thereby optimizing the load distribution of the photovoltaic module. After applying a load to the photovoltaic module from the outside, the photovoltaic module can be subjected to more uniform force, reducing the risk of stress concentration in the photovoltaic module.

[0023] Furthermore, the two first frame borders located on the two opposite first edges of the photovoltaic laminate do not extend to the two edge ends of the first edge, and at least one second frame border is located between the two first frame borders, so that the sum of the lengths of the two first frame borders and at least one second frame border is less than the perimeter of the edge of the photovoltaic laminate, which effectively reduces the amount of material used in the frame structure and lowers the cost of the photovoltaic module.

[0024] In addition, by using the two first frames and at least one second frame of this frame structure, after the photovoltaic module is assembled into the photovoltaic power station, the back of the photovoltaic laminate can be prevented from contacting the crossbeam below the photovoltaic module. This prevents the back of the photovoltaic module from hardly colliding with the crossbeam when the photovoltaic module is subjected to external loads (such as in extreme wind or rainstorms), reducing the risk of the photovoltaic module backsheet (especially the glass backsheet) cracking or breaking and extending the service life of the photovoltaic module. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the back structure of a photovoltaic module based on existing technology;

[0026] Figure 2 This is a schematic diagram of the back structure of a photovoltaic module according to the first structure provided in the embodiments of this utility model;

[0027] Figure 3 This is a schematic diagram of the back structure of a photovoltaic module according to the second structure provided in the embodiments of this utility model;

[0028] Figure 4 This is a schematic diagram of the back structure of a photovoltaic module with a third structure according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the back structure of a photovoltaic module with the fourth structure provided in the embodiments of this utility model;

[0030] Figure 6This is a schematic diagram of the back structure of a photovoltaic module according to the fifth structure provided in this utility model embodiment;

[0031] Figure 7 This is a schematic diagram of the back structure of a photovoltaic module according to the sixth structure provided in this utility model embodiment;

[0032] Figure 8 This is a schematic diagram of the back structure of a photovoltaic module according to the seventh structure provided in this utility model embodiment;

[0033] Figure 9 This is a schematic diagram of the back structure of a photovoltaic module according to the eighth structure provided in this utility model embodiment;

[0034] Figure 10 This is a schematic diagram of the back structure of a ninth type of photovoltaic module according to an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the back structure of a photovoltaic module according to the tenth structure provided in this utility model embodiment;

[0036] Figure 12 This is a schematic diagram of the back structure of the eleventh type of photovoltaic module provided in this embodiment of the present invention;

[0037] Figure 13 This is a schematic diagram of the back structure of a photovoltaic module according to the twelfth type of structure provided in this utility model embodiment;

[0038] Figure 14 This is a schematic diagram of the back structure of a photovoltaic module according to the thirteenth structure provided in this utility model embodiment;

[0039] Figure 15 This is a schematic diagram of the back structure of a photovoltaic module according to the fourteenth structure provided in this utility model embodiment;

[0040] Figure 16 This is a schematic diagram of a first three-dimensional structure of the first frame in a photovoltaic module according to an embodiment of the present utility model;

[0041] Figure 17 This is a schematic diagram of a second three-dimensional structure of the first frame in a photovoltaic module according to an embodiment of the present invention;

[0042] Figure 18 This is a schematic diagram of the third three-dimensional structure of the first frame in a photovoltaic module according to an embodiment of the present invention;

[0043] Figure 19 This is a schematic diagram of the fourth three-dimensional structure of the first frame in a photovoltaic module according to an embodiment of the present invention;

[0044] Figure 20 This is a cross-sectional structural diagram showing the relative relationship between the photovoltaic laminate and the second frame in a photovoltaic module according to an embodiment of the present invention;

[0045] Figure 21 This is a schematic diagram of the first relative relationship between photovoltaic modules and crossbeams in a photovoltaic power station according to an embodiment of the present utility model;

[0046] Figure 22 This is a schematic diagram illustrating the second relative relationship between photovoltaic modules and crossbeams in a photovoltaic power station according to an embodiment of this utility model.

[0047] Figure 23 This is a schematic diagram of the third relative relationship between photovoltaic modules and crossbeams in a photovoltaic power station according to an embodiment of the present utility model.

[0048] The attached figures are labeled as follows:

[0049] 10-Photovoltaic laminate; 11-First edge; 111-Edge end; 12-Second edge; 13-Gathering box; 20-Frame structure; 21-First frame; 211-Frame end; 212-Side protection part; 2121-Side protection section; 213-Frame support section; 214-First support base; 22-Second frame; 221-Top support part; 222-Second support base; 20'-Existing frame; 30-Crossbeam. Detailed Implementation

[0050] As described in the background section... Figure 1 In the existing photovoltaic (PV) module shown, the existing frame 20' surrounds and fully encloses the edge of the PV laminate 10. Therefore, the existing frame 20' is mainly used to support the edge of the PV laminate 10. This results in lower support, or even no support, at positions of the PV laminate 10 farther from the existing frame 20'. The existing frame 20' of the existing PV module easily causes the PV laminate 10 to bend and deform under the action of gravity or external loads (such as external loads applied to the PV module by strong winds or heavy rain). The less support, the greater the deformation. In particular, as the size of the PV laminate 10 increases, the bending deformation of the PV laminate 10 under external loads also increases, making the PV module more susceptible to damage. In addition, under external loads, the support force varies at different points, resulting in uneven load distribution and uneven stress on the PV module. This increases the risk of stress concentration and the risk of PV module fragmentation or breakage due to stress concentration. Currently, to reduce the risk of existing photovoltaic modules bending under external loads, when applying photovoltaic modules to photovoltaic power plants, such as... Figure 1As shown, a crossbeam 30 is added to the back of the photovoltaic module for support, and this crossbeam 30 is secured to the edge of the photovoltaic laminate 10 by a clamping block (not shown in the figure). However, since the crossbeam 30 is generally located at a distance from the wide side of the photovoltaic laminate 10... At position L, on the one hand, there is still a relatively wide area between the two crossbeams 30, and bending deformation in this area is still unavoidable; on the other hand, under external loads, the back of the photovoltaic module is prone to collision contact with the crossbeams 30. Due to the high hardness of the crossbeams 30 themselves, this collision increases the risk of breakage or fragmentation of the photovoltaic module. In particular, the backsheet glass, which has relatively high hardness, is more likely to break or fragment during collision contact with the crossbeams 30. In addition, since the crossbeams 30 are fitted with the existing frame 20', the stress applied by the external load from the photovoltaic laminate 10 can easily concentrate at the connection point between the crossbeams 30 and the photovoltaic module via the clamping block, making the connection point between the photovoltaic module and the crossbeams 30 susceptible to damage.

[0051] In addition, such as Figure 1 As shown, the length of the existing frame 20' is generally 2×(L+D), and the existing frame 20' consumes a lot of material, which is not conducive to reducing the cost of photovoltaic modules.

[0052] To address the aforementioned problems with existing photovoltaic modules, this utility model provides a novel photovoltaic module, photovoltaic power station, and frame structure. This novel photovoltaic module not only reduces the cost of the frame structure but also optimizes the load distribution of the photovoltaic module, making the photovoltaic module more uniformly stressed and reducing the risk of stress concentration.

[0053] It should be noted that the terms "first," "second," etc., 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. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0054] It is worth noting that the back side of the photovoltaic laminate 10 involved in this embodiment of the invention generally refers to the main surface of the photovoltaic laminate 10 facing away from sunlight after the photovoltaic module is installed / assembled in the photovoltaic power station. The back side centerline refers to the centerline of the back side of the photovoltaic laminate 10.

[0055] Specifically, this utility model provides a novel photovoltaic module, photovoltaic power station, and frame structure. Figures 2 to 15 A schematic diagram of the back structure of a photovoltaic module with a novel structure provided in an embodiment of this utility model is shown. Figures 16 to 19This diagram illustrates a three-dimensional structure of the first frame in a photovoltaic module provided in an embodiment of the present invention. Figure 20 This diagram shows a cross-sectional view of the relationship between the photovoltaic laminate and the second frame in a photovoltaic module provided by an embodiment of the present invention. Figures 21 to 23 This diagram illustrates the relative relationship between photovoltaic modules and crossbeams in a photovoltaic power station provided by an embodiment of the present invention. Figures 2 to 15 as well as Figures 21 to 23 As shown, the photovoltaic module may include: a photovoltaic laminate 10, the back side of which includes two opposing first edges 11 and two opposing second edges 12, the two first edges 11 and the two second edges 12 being joined end-to-end. For example, as... Figures 2 to 15 as well as Figures 21 to 23 As shown, the main surface of the photovoltaic laminate 10 is generally rectangular. In addition, the main surface of the photovoltaic laminate 10 can also be other shapes such as circles.

[0056] It is worth noting that, such as Figures 2 to 15 as well as Figures 21 to 23 As shown, the first edge 11 and the second edge 12 are edge regions extending a certain width from one edge on the back side of the photovoltaic laminate 10 towards a direction parallel to the center line of that edge. Figures 2 to 15 as well as Figures 21 to 23 As exemplarily shown, the first edge 11 is an edge region extending a certain width from the long side of the back surface of the photovoltaic laminate 10 in a direction parallel to the center line of the long side (i.e., the first edge 11 is the edge region corresponding to the long side), and the second edge 12 is an edge region extending a certain width from the wide side of the back surface of the photovoltaic laminate 10 in a direction parallel to the center line of the wide side (i.e., the second edge 12 is the edge region corresponding to the wide side). Alternatively, the first edge 11 can also be the edge region corresponding to the wide side, and correspondingly, the second edge 12 can be the edge region corresponding to the long side. The following embodiments are all described with the example of the first edge 11 being the edge region corresponding to the long side and the second edge 12 being the edge region corresponding to the wide side. Based on this, those skilled in the art can understand that in the structure where the first edge 11 is the edge region corresponding to the wide side, the first frame 21 and the second frame 22 are relative to the photovoltaic laminate 10.

[0057] Furthermore, the photovoltaic module may also include a junction box 13 disposed on the back of the photovoltaic laminate 10. For example... Figures 2 to 15 as well as Figures 21 to 23As shown, the junction box 13 can be disposed in the middle area of ​​the back side of the photovoltaic laminate 10. Alternatively, the junction box 13 can be disposed in the edge area of ​​the back side of the photovoltaic laminate 10. It is worth noting that the relative positional relationship between the first frame 21 and the second frame 22 in the photovoltaic module provided in this embodiment of the present invention is not directly related to the specific position of the junction box 13 on the photovoltaic laminate 10. That is to say, provided that the position of the first frame 21 and the second frame 22 is avoided, the relative positional relationship between the first frame 21 and the second frame 22 can be unaffected by the position of the junction box 13.

[0058] Furthermore, in addition to the photovoltaic laminate 10 and the junction box 13, such as Figures 2 to 15 as well as Figures 21 to 23 As shown, the photovoltaic module may further include a frame structure 20, wherein the frame structure 20 may include two first frames 21 and at least one second frame 22. The two first frames 21 are respectively disposed on two opposite first edges 11 of the photovoltaic laminate 10, and the extension direction of the first frame 21 is consistent with the extension direction of the first edge 11 on which it is located. Each first frame 21 does not extend to the two edge ends 111 of its first edge 11. At least one second frame 22 is disposed between the two first frames 21, and the second frame 22 is in contact with the back of the photovoltaic laminate 10. The first distance between the edge end 211 of the first frame 21 and the edge end 111 near the edge end 211 is less than or equal to the second distance between the second frame 22 and the second edge 12 near the edge end 22.

[0059] Understandably, in the case where the first edge 11 is the edge region corresponding to the long side of the back surface of the photovoltaic laminate 10 and the second edge 12 is the edge region corresponding to the wide side of the back surface of the photovoltaic laminate 10, such as... Figure 2 As shown, the extension direction of the first edge 11 is the long side extension direction S1 of the back surface of the photovoltaic laminate 10, and the extension direction of the second edge 12 is the wide side extension direction S2 of the back surface of the photovoltaic laminate 10. Furthermore, when the first edge 11 corresponds to the edge region of the wide side of the back surface of the photovoltaic laminate 10 and the second edge 12 corresponds to the edge region of the long side of the back surface of the photovoltaic laminate 10, the extension direction of the first edge 11 is the wide side extension direction of the back surface of the photovoltaic laminate 10, and the extension direction of the second edge 12 is the long side extension direction of the back surface of the photovoltaic laminate 10. Subsequent embodiments will be described using the example of the first edge 11 corresponding to the long side of the back surface of the photovoltaic laminate 10 and the second edge 12 corresponding to the wide side of the back surface of the photovoltaic laminate 10.

[0060] Among them, such as Figures 2 to 15 as well as Figures 21 to 23As shown, the two edge ends 111 of the first edge 11 are located at both ends of the extending direction of the first edge 11.

[0061] Generally, for two opposing first frames 21, the two edge ends 111 of one first frame 21 correspond to the two edge ends 111 of the other first frame 21. That is, the line connecting one edge end 111 of one first frame 21 to its corresponding edge end 111 of the other first frame 21 is perpendicular to the first frame 21, and the line connecting the other edge end 111 of one first frame 21 to its corresponding edge end 111 is also perpendicular to the first frame 21. This facilitates process control during the installation of the photovoltaic modules on the first frames 21. Furthermore, the corresponding arrangement of the two first frames 21 ensures balanced support at symmetrical positions of the photovoltaic modules, better distributing the load on the photovoltaic modules and reducing the risk of stress concentration.

[0062] For example, regarding the first spacing, such as Figure 2 As shown, the first spacing F1 between the left frame end 211 and its adjacent left edge end 111 (hereinafter referred to as the left first spacing F1), and the first spacing F1 between the right frame end 211 and its adjacent right edge end 111 (hereinafter referred to as the right first spacing F1) are shown. It should be noted that the left first spacing F1 and the right first spacing F1 can be the same or different. Preferably, the first spacing F1 on both sides is the same to further improve the uniformity of stress on the photovoltaic module. Furthermore, regarding the second spacing, for example, as shown... Figure 2 The structure shown has a second border 22, which is close to the second edge 12 on the right side. The second spacing F2 is the distance from the second border 22 to the second edge 12 on the right side. Figure 4 The structure shown has two second borders 22, and the second spacing F2 is the spacing between the right second border 22 and its rightmost second edge 12, and the spacing between the left second border 22 and its leftmost second edge 12. Specifically, for... Figure 7 and Figure 8 The structure shown, where the second border 22 on the left is parallel to the first border 21, means that the second distance F2 from the second border 22 on the left to its nearest left second edge 12 is essentially the distance from one end of the second border 22 on the left to the left second edge 12. Similarly, for... Figure 8 The structure shown is that the second border 22 on the right is parallel to the first border 21. The second distance F2 from the second border 22 on the right to its adjacent second edge 12 on the right is essentially the distance from one end of the second border 22 on the right to the second edge 12 on the right.

[0063] For the photovoltaic module provided in the above embodiment, a mating structure is formed by two first frame edges 21 disposed on two opposite first edges 11 of the photovoltaic laminate 10 and not extending to the edge ends 111 of the first edges 11, and at least one second frame edge 22 disposed between the two first frame edges 21 and attached to the back of the photovoltaic laminate 10. Furthermore, the first distance F1 between the edge ends 211 of the first frame edge 21 and the edge ends 111 near the edge ends 211 of the first frame edge 211 is less than or equal to the second distance F2 between the second frame edge 22 and the second edge 12 near the second frame edge 22. This allows the photovoltaic module to be supported more evenly inside and at the edges, thereby optimizing the load distribution of the photovoltaic module. After applying a load to the photovoltaic module from the outside, the photovoltaic module can be subjected to more uniform force, reducing the risk of stress concentration in the photovoltaic module.

[0064] Furthermore, the two first frame borders 21 disposed on the two opposite first edges 11 of the photovoltaic laminate 10 do not extend to the two edge ends 111 of the first edge 11, and at least one second frame border 22 is disposed between the two first frame borders 21, so that the sum of the lengths of the two first frame borders 21 and at least one second frame border 22 is less than the perimeter of the edge of the photovoltaic laminate 10, effectively reducing the amount of material used in the frame structure and lowering the cost of the photovoltaic module.

[0065] In addition, by cooperating with the two first frames 21 and at least one second frame 22 of the frame structure 10, after the photovoltaic module is assembled into the photovoltaic power station, the back of the photovoltaic laminate 10 can be prevented from contacting the crossbeam below the photovoltaic module. This prevents the back of the photovoltaic module from hardly colliding with the crossbeam 30 when the photovoltaic module is subjected to external loads (such as extreme windy weather or rainstorms), reduces the risk of the photovoltaic module backsheet (especially the glass backsheet) cracking or breaking, and improves the service life of the photovoltaic module.

[0066] It should be noted that the side of the photovoltaic laminate 10 provided in this embodiment of the present invention does not rely on the first frame 21 and the second frame 22 for sealing. The side of the photovoltaic laminate 10 can be sealed only by sealant. In addition, the side sealing of the photovoltaic laminate 10 can also be achieved by the interlocking of the edges of the cover plate and the back plate of the photovoltaic laminate 10 with the sealant inside the photovoltaic laminate 10.

[0067] More specifically, such as Figure 2 The first spacing F1 shown is greater than one-ninth of the length L of the first edge 11 and less than one-quarter of the length L of the first edge 11. By matching the first spacing F1 with the length L of the first edge 11, the first frame 21 can match the second frame 22, reducing the amount of material used while supporting the photovoltaic laminate 10 more evenly, so as to better distribute the external load on the photovoltaic laminate 10.

[0068] Preferably, the first spacing F1 is one-eighth of the length L of the first edge 11, which enables the first frame 21 and the second frame 22 to cooperate to achieve a better dispersion of the external load on the photovoltaic laminate 10.

[0069] The photovoltaic module provided in this embodiment of the utility model mainly disperses the external load on the photovoltaic laminate 10 through the cooperation of the first frame 21 and the second frame 22. The relative positional relationship between the first frame 21 and the second frame 22, the structure of the first frame 21, and the structure of the second frame 22 all affect the effectiveness of the frame structure in dispersing the external load on the photovoltaic laminate 10. The frame structure 20 will be further described below.

[0070] There are multiple structures for the first border 21.

[0071] Specifically, the first structure of the area in the first frame 21 that contacts the back of the photovoltaic laminate 10, such as... Figure 16 and Figure 17 As shown, the area where the first frame 21 contacts the back of the photovoltaic laminate 10 is a continuous integral structure. Furthermore, based on this first structure, it can be further... Figure 16 As shown, the first frame 21 has a structure without the side protection portion 212, or it can be as follows: Figure 17 As shown, the first frame 21 may also include a side protection part 212 located on the side of the photovoltaic laminate 10; the side protection part 212 and the frame support section 213 are an integral structure.

[0072] The second structure of the area in the first frame 21 that contacts the back of the photovoltaic laminate 10, such as Figure 18 and Figure 19 As shown, each first border 21 includes at least two border support segments 213 spaced apart. For this second structure, as... Figure 18 and Figure 19 As shown, the first frame 21 may also include a side protection portion 212 located on the side of the photovoltaic laminate 10; the side protection portion 212 and the frame support section 213 are an integral structure. The side protection portion 212 may also extend to the front edge of the photovoltaic laminate 10.

[0073] Regarding the second structure, the side protection part 212 and the frame support section 213 being an integral structure can have two specific structures. The first specific structure where the side protection part 212 and the frame support section 213 are an integral structure is as follows: Figure 18 As shown, the side protection section 212 is a continuous, integral structure. A second specific structure is where the side protection section 212 and the frame support section 213 are integrally formed, as shown below. Figure 19As shown, the side protection portion 212 consists of at least two spaced side protection segments 2121; each of the at least two side protection segments 2121 corresponds to at least two frame support segments 213; the side protection segments 2121 and their corresponding frame support segments 213 form an integral structure. Furthermore, regarding... Figure 18 and Figure 19 The structure shown can omit the side protection part 212.

[0074] Furthermore, regarding the first border 21 of the above-mentioned various structures, such as Figures 16 to 19 As shown, the first frame 21 may also include a first support base 214, which is used to fix the photovoltaic laminate 10 to a specific position such as a roof, ground, bracket, etc.

[0075] The first frame 21 and the second frame 22 of the above-mentioned various structures can cooperate to provide relatively balanced support to each position of the photovoltaic laminate 10, reduce the risk of load collision between the photovoltaic laminate 10 and the crossbeam 20, and can better disperse the load and stress on the photovoltaic laminate 10, reduce the risk of stress concentration, and reduce the risk of the photovoltaic laminate 10 breaking.

[0076] Regarding the second frame 22, its top surface is bonded to the back surface of the photovoltaic laminate 10. For example... Figure 20 As shown, the second frame 22 may include a top support 221 and a second support base 222. The top support 221 is attached to the back of the photovoltaic laminate 10 and cooperates with the first frame 21 to provide support for the photovoltaic laminate 10, so as to better distribute the support force to various positions of the photovoltaic laminate 10, reduce the risk of bending of the photovoltaic laminate 10, and reduce the risk of collision between the photovoltaic laminate 10 and the crossbeam 30 under external loads (such as the loads applied to the photovoltaic laminate by extreme weather such as strong winds and rainstorms), thereby reducing the risk of breakage of the back sheet (especially the back sheet glass) of the photovoltaic laminate 10.

[0077] The widths of the first frame 21 and the second frame 22 can be basically the same as the widths of the existing frames. Research has found that although increasing the widths of the first frame 21 and the second frame 22 can improve the stress uniformity of the photovoltaic laminate 10, it also increases the amount of material used. Comparing the benefits of extending the service life of the photovoltaic laminate 10 brought about by increasing the widths of the first frame 21 and the second frame 22 with the increased costs brought about by increasing the widths of the first frame 21 and the second frame 22, it is found that the widths of the first frame 21 and the second frame 22 are basically the same as the widths of the existing frames, which can yield higher benefits from the photovoltaic modules.

[0078] The number of second borders 22 can be one or at least two.

[0079] Specifically, such as Figure 2 , Figure 3 and Figure 21 As shown, there is one second frame 22, which is located on one side parallel to and close to the back center line M of the second edge 12; the second frame 22 is perpendicular to the first edge 11. One second frame 22, in conjunction with two first frames 21, can effectively reduce the collision stress between the photovoltaic laminate 10 and the crossbeam 30, and reduce the stress at the edge contact point between the crossbeam 30 and the photovoltaic module, thereby reducing the risk of backsheet cracking (especially backsheet glass cracking) of the photovoltaic laminate 10 and improving the service life of the photovoltaic module.

[0080] like Figures 4 to 10 and Figure 22 As shown, there are at least two second borders 22; for each second border 22, the second border 22 is parallel or perpendicular to the first border 21; the two second borders 22 are respectively located on both sides of the back center line parallel to the second edge 12; the second distance F2 between each second border 22 and the adjacent second edge 12 is greater than one-ninth of the length L of the first edge 11 and less than or equal to one-third of the length L of the first edge 11; any two second borders 22 do not intersect each other. For example, as... Figures 4 to 6 as well as Figure 22 As shown, both second borders 22 are perpendicular to the first border 21; or as shown... Figure 7 As shown, one second border 22 is perpendicular to the first border 21, and the other second border 22 is parallel to the first border 21; it can also be as follows: Figure 8 As shown, both second borders 22 are parallel to the first border 21.

[0081] The two second frame frames 22 of the aforementioned arbitrary structure cooperate with the first frame frame 21 to prevent the photovoltaic laminate 10 from contacting the crossbeam 30 after the photovoltaic module is applied in the photovoltaic power station, further reducing the risk of contact collision between the photovoltaic laminate 10 and the crossbeam 30. In addition, the cooperation between the two second frame frames 22 and the first frame frame 21 can make the supporting force on the photovoltaic laminate 10 more evenly distributed, further reducing the risk of stress concentration in the photovoltaic laminate 10.

[0082] Based on the combination of the two second frame frames 22 and the two first frame frames 21, the second distance F2 between each second frame frame 22 and the adjacent second edge 12 is greater than one-ninth of the length L of the first edge 11 and less than or equal to one-third of the length L of the first edge 11. This allows the second edge 12 of the photovoltaic module to also be supported, preventing bending in the area between the second frame frame 22 and the second edge 12 in the photovoltaic module, ensuring that each position of the photovoltaic module is supported by a relatively balanced force, and reducing the risk of stress concentration in the photovoltaic module.

[0083] Furthermore, regardless of whether the number of second border 22 is one or at least two, such as Figure 2 , Figure 4 and Figure 7 As shown, the second spacing F2 is greater than or equal to one-eighth of the length L of the first edge 11, so as to ensure that the second frame 22 matches the first frame 21, so that the area of ​​the second edge 12 can also be well supported, while ensuring that the middle area of ​​the photovoltaic module 10 can also be supported, reducing the risk of bending of the photovoltaic module and the risk of stress concentration, and preventing contact and collision between the back of the photovoltaic laminate 10 and the crossbeam 30.

[0084] Furthermore, regardless of whether there is one or at least two second borders 22, the relative relationship between the second border 22 perpendicular to the first border 21 and the first border 21 can be twofold. Specifically, the first relative relationship between the second border 22 perpendicular to the first border 21 and the first border 21 is as follows: Figure 2 , Figure 4 , Figure 5 , Figure 7 , Figures 9 to 11 , Figures 13 to 15 , Figure 21 and Figure 22 As shown, the second frame 22, which is perpendicular to the first frame 21, abuts against the first frame 21. This first relative relationship can relatively stably fix the second frame 22, prevent the second frame 22 from shifting, and improve the reliability of the support of the second frame 22. The second frame 22 can be fixed to the first frame 21 by means of adhesive bonding, or by fixing with accessories (such as screws, brackets, etc.).

[0085] The second relative relationship between the second border 22, which is perpendicular to the first border 21, and the first border 21 is as follows: Figure 3 , Figure 6 , Figure 11 , Figure 12 as well as Figure 13 As shown, there is a gap between the second frame 22 and the first frame 21. Preferably, for this second relative relationship, the length of the second frame 22 is greater than or equal to half the length of the second edge 12. This second relative relationship can further reduce the amount of material used in the second frame 22, thereby further reducing the cost of photovoltaic modules.

[0086] For photovoltaic modules having at least two second frames 22 that are parallel to the first frame 21, such as... Figure 7 , Figure 8 , Figure 11 , Figure 12 and Figure 23As shown, the length T of the second frame 22 parallel to the first frame 21 is greater than or equal to one-eighth of the length L of the first edge 11 and less than one-quarter of the length L of the first edge 11, so that the second frame 22 parallel to the first frame 21 can provide better support for the photovoltaic laminate 10.

[0087] Preferably, such as Figure 7 As shown, the distance F3 between the center of the second frame 22 parallel to the first frame 21 and the second edge 12 near the second frame 22 is equal to one-quarter of the length L of the first edge 11. This ensures that the second edge 12 of the photovoltaic laminate 10 can also be supported by the second frame 22 parallel to the first frame 21 and the first frame 21, thereby reducing the risk of contact between the photovoltaic laminate 10 and the crossbeam 30 and preventing the second edge 12 from bending under external load.

[0088] Furthermore, such as Figure 11 , Figure 12 and Figure 13 As shown, for a structure with three second frames 22, the first second frame 22 is located on one side parallel to the back center line M of the second edge 12 and close to the back center line M; the second second frame 22 is close to one second edge 12; and the third second frame 22 is close to another second edge 12, so as to further enhance the effect of the second frame 22 and the first frame 21 in supporting the photovoltaic laminate 10, so that the photovoltaic laminate 10 is subjected to a more balanced support force and further optimizes the load distribution of the photovoltaic module.

[0089] Furthermore, such as Figure 14 and Figure 15 As shown, for a structure with four second borders 22, all four second borders 22 being parallel to the second edge 12, two second borders 22 are distributed on each side of the back center line M; the distance F4 between the two second borders 22 located on the same side of the back center line M is greater than or equal to one-eighth of the length L of the first edge 11 and less than or equal to one-sixth of the length L of the first edge 11, wherein, the second distance F2 between one of the two second borders 22 located on the same side of the back center line M and the second edge 12 closest to it is greater than one-ninth of the length of the first edge 11 and less than one-quarter of the length L of the first edge 11; the second distance F2 between the other of the two second borders 22 located on the same side of the back center line and the second edge 12 closest to it is greater than one-quarter of the length L of the first edge 11 and less than three-eighths of the length L of the first edge 11. Figure 15As shown in the example, among the two second frame borders 22 located to the right of the rear center line M, the second distance F2 between one second frame border 22 (i.e., the rightmost second frame border 22) and its adjacent second edge 12 is greater than one-ninth of the length of the first edge 11 and less than one-quarter of the length L of the first edge 11. The second distance F2 between the other second frame border 22 (i.e., the second frame border 22 located to the right of the rear center line M and closer to the rear center line M) and its adjacent second edge 12 is greater than one-quarter of the length L of the first edge 11 and less than three-eighths of the length L of the first edge 11. Through this structural layout, collision contact between the photovoltaic laminate 10 and the crossbeam 30 can be completely avoided, so that the external load on the photovoltaic laminate 10 is evenly distributed. After applying a load to the photovoltaic module from the outside, the photovoltaic module can be subjected to more uniform force, reducing the risk of stress concentration in the photovoltaic module.

[0090] The first frame 21 and the second frame 22 mentioned above can be made of materials such as steel, aluminum alloy or plastic.

[0091] Furthermore, this utility model embodiment also provides a photovoltaic power station. For example... Figures 21 to 23 As shown, the photovoltaic power station may include: two crossbeams 30 and a photovoltaic module provided in any of the above embodiments, wherein the two crossbeams 30 are respectively disposed on both sides of the back center line M of the photovoltaic module; the extending direction of the two crossbeams 30 is perpendicular to the extending direction of the two first frames 21 of the frame structure 20 included in the photovoltaic module; the third distance F5 between the crossbeam 30 and the second edge 12 of the photovoltaic module it is close to is greater than the first distance F1 between the frame end 211 of the first frame 21 and the edge end 111 close to the frame end 211. Figure 2 (As shown). By having the two crossbeams 30 support the photovoltaic module, the load distribution of the photovoltaic module is further optimized. When an external load is applied to the photovoltaic module, the force on the photovoltaic module is more uniform, reducing the risk of stress concentration. It can also reduce or even avoid contact and collision between the photovoltaic laminate 10 and the crossbeams 30.

[0092] More specifically, regarding photovoltaic power plants, such as Figures 21 to 23 As shown, the distance F6 between the edge 211 of the first frame 21 and the adjacent crossbeam 30 is greater than or equal to the length L of the first edge 11 of the photovoltaic laminate 10 where the first frame 21 is located (e.g., Figure 2 (As shown) One-eighth and less than one-seventh. This is to allow the beam 30 structure to better support the photovoltaic laminate 10 in conjunction with the first frame 21 and the second frame 22, and to further reduce the risk of contact and collision between the photovoltaic laminate 10 and the beam 30.

[0093] It is worth noting that, Figures 21 to 23 The photovoltaic module given is only one example. Figures 2 to 15Any of the photovoltaic modules shown can be used with the crossbeam 30, and its... Figures 21 to 23 The given matching structures are similar, so I will not repeat them here.

[0094] In addition, the crossbeam 30 is offset from the second frame 22, which is perpendicular to the first frame 21, to further optimize the load distribution of the photovoltaic module.

[0095] Furthermore, this embodiment of the invention also provides a frame structure 20 for use in photovoltaic modules. Specifically, as shown... Figures 2 to 15 as well as Figures 21 to 23 As shown, the frame structure 20 may include: two first frame frames 21 and at least one second frame frame 22, wherein the at least one second frame frame 22 and the two first frame frames 21 are separate structures or integral structures; the two first frame frames 21 may be assembled to two opposite first edges 11 of the photovoltaic laminate 10, and the extension direction of the first frame frame 21 is consistent with the extension direction of the first edge 11 to which it is located; each first frame frame 21 does not extend to the two edge ends 111 of the first edge 11 to which it is located; based on the two first frame frames 21 being assembled to the two opposite first edges 11 of the photovoltaic laminate 10, at least one second frame frame 22 may be assembled to the back side of the photovoltaic laminate 10 and be in contact with the back side of the photovoltaic laminate 10, and at least one second frame frame 22 is located between the two first frame frames 21; the first distance between the frame end 211 of the first frame frame 21 and the edge end 111 near the frame end 211 is less than or equal to the second distance between the second frame frame 22 and the second edge 12 near the second frame frame 22.

[0096] The first frame 21 and the second frame 22 mentioned above can be made of materials such as steel, aluminum alloy or plastic.

[0097] Regarding the frame structure 20, two first frames are respectively disposed on the two opposite first edges of the photovoltaic laminate, and the edge ends that do not extend to the first edges are matched with the second frame that is attached to the back of the photovoltaic laminate. For this matching structure, the first distance between the edge ends of the first frame and the edge ends of the frame ends is less than or equal to the second distance between the second frame and the edge ends of the second frame. This can make the interior and edges of the photovoltaic module receive more uniform support, thereby optimizing the load distribution of the photovoltaic module. After applying a load to the photovoltaic module from the outside, the photovoltaic module can be subjected to more uniform force, reducing the risk of stress concentration in the photovoltaic module.

[0098] Furthermore, the frame structure 20 ensures that the sum of the lengths of the two first frames and at least one second frame is less than the perimeter of the photovoltaic laminate edge, effectively reducing the amount of material used in the frame structure and lowering the cost of the photovoltaic module.

[0099] In addition, by using the two first frames and at least one second frame of this frame structure, after the photovoltaic module is assembled into the photovoltaic power station, the back of the photovoltaic laminate can be prevented from contacting the crossbeam below the photovoltaic module. This prevents the back of the photovoltaic module from hardly colliding with the crossbeam when the photovoltaic module is subjected to external loads (such as in extreme wind or rainstorms), reducing the risk of the photovoltaic module backsheet (especially the glass backsheet) cracking or breaking and extending the service life of the photovoltaic module.

[0100] In summary, the embodiments of this utility model provide the following technical solutions:

[0101] Technical Solution 1. A photovoltaic module, comprising a photovoltaic laminate 10, wherein the back side of the photovoltaic laminate 10 includes two opposing first edges 11 and two opposing second edges 12, the two first edges 11 and the two second edges 12 being connected end-to-end, the photovoltaic module further comprising: a frame structure 20.

[0102] The border structure 20 includes: two first borders 21 and at least one second border 22.

[0103] The two first frame borders 21 are respectively disposed on two opposite first edges 11 of the photovoltaic laminate 10, and the extension direction of the first frame border 21 is consistent with the extension direction of the first edge 11 on which it is located;

[0104] Each of the first border edges 21 does not extend to the two edge ends 111 of the first edge 11 it is located on;

[0105] At least one second frame 22 is disposed between two first frames 21, and the second frame 22 is in contact with the back of the photovoltaic laminate 10;

[0106] The first distance between the edge end 211 of the first frame 21 and the edge end 111 near the edge end 211 is less than or equal to the second distance between the second frame 22 and the second edge 12 near the edge 22.

[0107] Technical Solution 2. The photovoltaic module according to Technical Solution 1,

[0108] The number of the second border 22 is one;

[0109] The second frame 22 is disposed on one side parallel to and close to the back center line of the second edge 12;

[0110] The second border 22 is perpendicular to the first edge 11.

[0111] Technical Solution 3. The photovoltaic module according to Technical Solution 1,

[0112] The number of the second border 22 is at least two;

[0113] For each of the second borders 22, the second border 22 is parallel or perpendicular to the first border 21;

[0114] At least two second border frames 22 are respectively disposed on both sides of the back center line parallel to the second edge 12;

[0115] At least one of the second border edges 22 and the second edge 12 adjacent to it has a second distance greater than one-ninth of the length of the first edge 11 and less than or equal to one-third of the length of the first edge 11;

[0116] Any two of the second borders 22 do not intersect each other.

[0117] Technical Solution 4. The photovoltaic module according to any one of Technical Solutions 1 to 3,

[0118] The first spacing is greater than one-ninth of the length of the first edge 11 and less than one-quarter of the length of the first edge 11.

[0119] Technical Solution 5. The photovoltaic module according to Technical Solution 3,

[0120] The second spacing is greater than or equal to one-eighth of the length of the first edge 11.

[0121] Technical Solution 6. The photovoltaic module according to Technical Solution 2 or 3,

[0122] The second border 22, which is perpendicular to the first border 21, abuts against the first border 21 or there is a gap between the second border 22 and the first border 21. Preferably, the length of the second border 22 is greater than or equal to half the length of the second edge 12.

[0123] Technical Solution 7. The photovoltaic module according to Technical Solution 3 or 5,

[0124] The length of the second border 22, which is parallel to the first border 21, is greater than or equal to one-eighth of the length of the first edge 11 and less than one-quarter of the length of the first edge 11.

[0125] Technical Solution 8. The photovoltaic module according to Technical Solution 3,

[0126] The number of the second border 22 is three;

[0127] The first second border 22 is disposed on one side parallel to and close to the back center line of the second edge 12;

[0128] The second second border 22 is adjacent to one of the second edges 12;

[0129] The third second border 22 is close to the other second edge 12.

[0130] Technical Solution 9. The photovoltaic module according to Technical Solution 3,

[0131] There are four second borders 22, and all four second borders 22 are parallel to the second edge 12;

[0132] Two second borders 22 are distributed on each side of the center line of the back;

[0133] The distance between the two second borders 22 located on the same side of the back center line is greater than or equal to one-eighth of the length of the first edge 11 and less than or equal to one-sixth of the length of the first edge 11. Specifically, the second distance between one of the two second borders 22 located on the same side of the back center line and its adjacent second edge 12 is greater than one-ninth of the length of the first edge 11 and less than one-quarter of the length of the first edge 11; the second distance between the other of the two second borders 22 located on the same side of the back center line and its adjacent second edge 12 is greater than one-quarter of the length of the first edge 11 and less than three-eighths of the length of the first edge 11.

[0134] Technical Solution 10. According to the photovoltaic module of technical solutions 3, 5 or 9, each of the first frame 21 includes at least two frame support segments 213 spaced apart from each other.

[0135] Technical Solution 11. The photovoltaic module according to Technical Solution 10,

[0136] The first frame 21 further includes: a side protection portion 212 located on the side of the photovoltaic laminate 10;

[0137] The side protection section 212 and the frame support section 213 are an integral structure.

[0138] Technical Solution 12. The photovoltaic module according to Technical Solution 11,

[0139] The side protection portion 212 consists of at least two side protection segments 2121 spaced apart;

[0140] At least two side protection sections 2121 correspond one-to-one with at least two of the frame support sections 213;

[0141] The side protection section 2121 and its corresponding frame support section 213 are an integral structure.

[0142] Technical Solution 13. The photovoltaic module according to any one of technical solutions 1 to 3, 5, 8, 9, 11 and 12,

[0143] The top surface of the second frame 22 is in contact with the back surface of the photovoltaic laminate 10.

[0144] Technical Solution 14. The photovoltaic module according to Technical Solution 4, wherein the first spacing is one-eighth of the length of the first edge 11.

[0145] Technical Solution 15. The photovoltaic module according to Technical Solution 7,

[0146] The distance between the center of the second border 22, which is parallel to the first border 21, and the second edge 12 near the second border 22 is equal to one-quarter of the length of the first edge 11.

[0147] Technical Solution 16. A photovoltaic power station, comprising: two crossbeams 30 and photovoltaic modules as described in any one of technical solutions 1 to 15, wherein,

[0148] The two crossbeams 30 are respectively located on both sides of the center line on the back of the photovoltaic module;

[0149] The extending directions of the two crossbeams 30 are perpendicular to the extending directions of the two first frames 21 of the frame structure 20 included in the photovoltaic module;

[0150] The third distance between the crossbeam 30 and the second edge 12 of the photovoltaic module it is close to is greater than the first distance between the edge end 211 of the first frame 21 and the edge end 111 of the edge end 211 that is close to the first frame 21.

[0151] Technical Solution 17. The photovoltaic power station according to Technical Solution 15,

[0152] The distance between the edge end 211 of the first frame 21 and the adjacent crossbeam 30 is greater than or equal to one-eighth and less than one-seventh of the length of the first edge 11 of the photovoltaic laminate 10 where the first frame 21 is located.

[0153] Technical solution 18. A frame structure 20 for photovoltaic modules, comprising: two first frame frames 21 and at least one second frame frame 22, wherein,

[0154] At least one second border 22 and the two first borders 21 are either separate structures or an integral structure;

[0155] The two first frame frames 21 can be assembled to two opposite first edges 11 of the photovoltaic laminate 10, and the extension direction of the first frame frame 21 is consistent with the extension direction of the first edge 11 to which it is located.

[0156] Each of the first border edges 21 does not extend to the two edge ends 111 of the first edge 11 it is located on;

[0157] Based on the two first frame edges 21 being assembled to the two opposite first edges 11 of the photovoltaic laminate 10, at least one second frame edge 22 may be assembled to the back side of the photovoltaic laminate 10 and fit against the back side of the photovoltaic laminate 10, with at least one second frame edge 22 located between the two first frame edges 21.

[0158] The first distance between the edge end 211 of the first frame 21 and the edge end 111 near the edge end 211 is less than or equal to the second distance between the second frame 22 and the second edge 12 near the edge 22.

[0159] The above steps are provided only to help understand the method, structure, and core idea of ​​this utility model. For those skilled in the art, various improvements and modifications can be made to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A photovoltaic module, comprising a photovoltaic laminate (10), wherein the back side of the photovoltaic laminate (10) includes two opposing first edges (11) and two opposing second edges (12), the two first edges (11) and the two second edges (12) being joined end-to-end, characterized in that, The photovoltaic module also includes: a frame structure (20). The border structure (20) includes: two first borders (21) and at least one second border (22). The two first frame edges (21) are respectively disposed on the two opposite first edges (11) of the photovoltaic laminate (10), and the extension direction of the first frame edge (21) is consistent with the extension direction of the first edge (11) where it is located; Each of the first borders (21) does not extend to the two edge ends (111) of the first edge (11) where it is located. At least one second frame (22) is disposed between two first frames (21), and the second frame (22) is in contact with the back of the photovoltaic laminate (10); The first spacing between the edge end (211) of the first frame (21) and the edge end (111) near the edge end (211) is less than or equal to the second spacing between the second frame (22) and the second edge (12) near the edge of the second frame (22).

2. The photovoltaic module according to claim 1, characterized in that, The number of the second border (22) is one; The second frame (22) is disposed on one side parallel to and close to the back center line of the second edge (12); The second border (22) is perpendicular to the first edge (11).

3. The photovoltaic module according to claim 1, characterized in that, The number of the second border (22) is at least two; For each of the second borders (22), the second border (22) is parallel or perpendicular to the first border (21); At least two second borders (22) are respectively disposed on both sides of the back center line parallel to the second edge (12); At least one of the second borders (22) has a second distance greater than one-ninth of the length of the first edge (11) and less than or equal to one-third of the length of the first edge (11); Any two of the second borders (22) do not intersect each other.

4. The photovoltaic module according to any one of claims 1 to 3, characterized in that, The first spacing is greater than one-ninth of the length of the first edge (11) and less than one-quarter of the length of the first edge (11).

5. The photovoltaic module according to claim 3, characterized in that, The second spacing is greater than or equal to one-eighth of the length of the first edge (11).

6. The photovoltaic module according to claim 2 or 3, characterized in that, The second border (22) perpendicular to the first border (21) abuts against the first border (21) or there is a gap between the second border (22) and the first border (21).

7. The photovoltaic module according to claim 3 or 5, characterized in that, The length of the second border (22) parallel to the first border (21) is greater than or equal to one-eighth of the length of the first edge (11) and less than one-quarter of the length of the first edge (11).

8. The photovoltaic module according to claim 3, characterized in that, The number of the second border (22) is three; The first second border (22) is disposed on one side parallel to and close to the back center line of the second edge (12); The second second border (22) is close to one of the second edges (12); The third second border (22) is close to the other second edge (12).

9. The photovoltaic module according to claim 3, characterized in that, The number of the second border (22) is four, and all four second borders (22) are parallel to the second edge (12); Two second borders (22) are distributed on each side of the center line of the back side. The distance between the two second borders (22) located on the same side of the back center line is greater than or equal to one-eighth of the length of the first edge (11) and less than or equal to one-sixth of the length of the first edge (11), wherein the second distance between one of the two second borders (22) located on the same side of the back center line and the second edge (12) it is close to is greater than one-ninth of the length of the first edge (11) and less than one-quarter of the length of the first edge (11); the second distance between the other of the two second borders (22) located on the same side of the back center line and the second edge (12) it is close to is greater than one-quarter of the length of the first edge (11) and less than three-eighths of the length of the first edge (11).

10. The photovoltaic module according to claim 3, 5 or 9, characterized in that, Each of the first borders (21) includes at least two border support segments (213) spaced apart from each other.

11. The photovoltaic module according to claim 10, characterized in that, The first frame (21) also includes: a side protection part (212) located on the side of the photovoltaic laminate (10); The side protection section (212) and the frame support section (213) are an integral structure.

12. The photovoltaic module according to claim 11, characterized in that, The side protection part (212) consists of at least two side protection sections (2121) spaced apart. At least two side protection sections (2121) correspond one-to-one with at least two of the frame support sections (213); The side protection section (2121) and its corresponding frame support section (213) are an integral structure.

13. The photovoltaic module according to any one of claims 1 to 3, 5, 8, 9, 11 and 12, characterized in that, The top surface of the second frame (22) is in contact with the back surface of the photovoltaic laminate (10).

14. The photovoltaic module according to claim 4, characterized in that, The first spacing is one-eighth of the length of the first edge (11).

15. The photovoltaic module according to claim 7, characterized in that, The distance between the center of the second border (22) parallel to the first border (21) and the second edge (12) near the second border (22) is equal to one-quarter of the length of the first edge (11).

16. The photovoltaic module according to claim 7, characterized in that, The distance between the center of the second border (22) parallel to the first border (21) and the second edge (12) near the second border (22) is equal to one-quarter of the length of the first edge (11).

17. A photovoltaic power station, characterized in that, include: Two crossbeams (30) and a photovoltaic module according to any one of claims 1 to 16, wherein, The two crossbeams (30) are respectively located on both sides of the center line of the back of the photovoltaic module; The extension directions of the two beams (30) are perpendicular to the extension directions of the two first frames (21) of the frame structure (20) included in the photovoltaic module; The third distance between the crossbeam (30) and the second edge (12) of the photovoltaic module it is close to is greater than the first distance between the edge end (211) of the first frame (21) and the edge end (111) of the frame end (211) that is close to it.

18. The photovoltaic power station according to claim 17, characterized in that, The distance between the edge end (211) of the first frame (21) and the adjacent crossbeam (30) is greater than or equal to one-eighth and less than one-seventh of the length of the first edge (11) of the photovoltaic laminate (10) where the first frame (21) is located.

19. A frame structure (20) for use in photovoltaic modules, characterized in that, include: Two first borders (21) and at least one second border (22), wherein, At least one second border (22) and the two first borders (21) are either separate structures or integral structures; The two first frame edges (21) can be fitted to the two opposite first edges (11) of the photovoltaic laminate (10), and the extension direction of the first frame edge (21) is consistent with the extension direction of the first edge (11) where it is located; Each of the first borders (21) does not extend to the two edge ends (111) of the first edge (11) where it is located. Based on the two first frame edges (21) being assembled on the two opposite first edges (11) of the photovoltaic laminate (10), at least one second frame edge (22) may be assembled on the back side of the photovoltaic laminate (10) and in contact with the back side of the photovoltaic laminate (10), and at least one second frame edge (22) is located between the two first frame edges (21); The first spacing between the edge end (211) of the first frame (21) and the edge end (111) near the edge end (211) is less than or equal to the second spacing between the second frame (22) and the second edge (12) near the edge of the second frame (22).

Images