Photovoltaic module fastening device, photovoltaic module frame and photovoltaic module

Abstract

The utility model discloses a photovoltaic module fastening device, a photovoltaic module frame and a photovoltaic module, and belongs to the technical field of photovoltaic solar energy. The photovoltaic module fastening device comprises a pressing block, the top of the pressing block is a pressure bearing portion, and a first pressing portion and a second pressing portion or a supporting portion are arranged below the pressure bearing portion. The first pressing part, the second pressing part and the supporting part are all of a plate-shaped structure, and a receding part is arranged between the first pressing part and the second pressing part or the supporting part. Protruding points are arranged at the ends, away from the pressure bearing part, of the first pressing part and the second pressing part or the supporting part. The pressing block is high in bearing capacity, stable and free of shaking. According to the photovoltaic module provided by the utility model, the mounting groove is formed in the frame, and the fastening device is used, so that the photovoltaic module can be firmly and stably mounted without shaking under severe weather conditions, and the problem that a glass surface of a full-screen module is fragile under the action of a conventional pressing block is solved through the matched use of the pressing block and the mounting groove.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic solar energy technology, specifically to a photovoltaic module fastening device, a photovoltaic module frame, and a photovoltaic module. Background Technology

[0002] Photovoltaic modules generally refer to solar cell modules. Because the output voltage of a single solar cell is relatively low, and the electrodes of unencapsulated cells are prone to detachment due to environmental influences, a certain number of individual cells must be sealed in series and parallel to form a solar cell module to prevent corrosion of the cell electrodes and interconnects. In addition, encapsulation also prevents the cells from breaking and facilitates outdoor installation. The quality of encapsulation determines the lifespan and reliability of the solar cell module.

[0003] The frame is a crucial component of photovoltaic (PV) modules, primarily used for fixing and sealing them. The frame significantly impacts the module's lifespan and requires high weather resistance. Currently, commonly used frames are formed by extruding profiles using molds, with some frames incorporating clamping blocks and mounting slots. However, existing technologies with clamping blocks and mounting slots suffer from structural issues such as insecure installation, instability, and wobbling. Furthermore, because the glass surface of a full-screen module is flush with the frame interface, using conventional clamping blocks easily leads to glass breakage, making it impossible to securely install PV modules under harsh weather conditions.

[0004] For example, Chinese Patent Application Publication No. CN220291955U, filed on June 8, 2023, discloses a universal detachable photovoltaic module mounting block, including a clamping base for fixed connection with a photovoltaic bracket and a clamping head for clamping the photovoltaic module frame. The clamping head has an L-shaped structure, including a vertical section for cooperating with the clamping base and a clamping section for pressing against the surface of the photovoltaic module frame. The clamping head and the clamping base are detachably connected, and a height adjustment mechanism is provided on the contact surface for adjusting the position of the clamping head along the height direction of the photovoltaic module frame. Although this technical solution includes mounting protrusions and mounting grooves, the photovoltaic module is not securely installed and is prone to shaking. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] In existing photovoltaic modules, the frame with clamping blocks and clamping block mounting grooves suffers from structural problems such as insecure installation, instability, and easy wobbling. Furthermore, because the glass surface of a full-screen module is flush with the frame interface, using conventional clamping blocks easily leads to glass breakage. This invention provides a photovoltaic module fastening device with strong load-bearing capacity, stability, and no wobbling. This invention also provides a photovoltaic module using this fastening device, which ensures secure, stable, and wobbly installation even in harsh weather conditions, while simultaneously solving the problem of easily breakable glass.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0009] A photovoltaic module fastening device includes a pressure block, the top of which is a pressure-bearing part, a first pressing part and a second pressing part or support part are provided below the pressure-bearing part;

[0010] The first pressing part, the second pressing part, and the support part are all plate-shaped structures. The first pressing part and the second pressing part are used to press on the frame of the photovoltaic module. An empty space is provided between the first pressing part and the second pressing part or the support part. The ends of the first pressing part and the second pressing part or the support part away from the pressure-bearing part are provided with protrusions.

[0011] Furthermore, the lower part of the pressure-bearing part includes a first pressing part and a second pressing part, which are disposed on two sides of the pressure-bearing part.

[0012] Furthermore, the lower part of the pressure-bearing part includes a first pressing part and a supporting part. The supporting part is located on the side of the first pressing part away from the photovoltaic module frame, and the length of the supporting part in the Z-axis direction is greater than or equal to the length of the first pressing part.

[0013] Furthermore, when the length of the support part in the Z-axis direction is greater than the length of the pressing part, a first limiting plate is provided at the middle of the end of the support part away from the pressure bearing part, and the protrusions on the support part are located on both sides of the first limiting plate.

[0014] Furthermore, the pressure block also includes two support portions located inside the first and second pressure portions, the first and second pressure portions protruding outward relative to the support portions in the Y-axis direction; the length of the support portions in the Z-axis direction is greater than or equal to the length of the first and second pressure portions.

[0015] Furthermore, the two support portions are provided with notches in the middle to form a first support portion, a second support portion, a third support portion, and a fourth support portion located at the four corners of the pressure-bearing portion. The first pressing portion is located between the first support portion and the second support portion, and in the Y direction, the first pressing portion forms a clearance between the first supporting portion and the second support portion. The second pressing portion is located between the third support portion and the fourth support portion, and in the Y direction, the second pressing portion forms another clearance between the third supporting portion and the fourth support portion.

[0016] Furthermore, the first support portion and the second support portion are arranged in pairs, and the third support portion and the fourth support portion are arranged in pairs. The bottom ends of the first support portion and the second support portion, as well as the bottom ends of the third support portion and the fourth support portion, are respectively provided with second limiting plates opposite to each other. The protrusion is located on the bottom end face of the first support portion, the second support portion, the third support portion and the fourth support portion.

[0017] A photovoltaic module frame includes a frame body, characterized in that: the frame body cooperates with the fastening device; a "┌"-shaped mounting groove is formed on the outer side wall of the frame body, the mounting groove forms an opening on the outer side wall of the frame body, and a first pressing part and / or a second pressing part are disposed in the mounting groove through the opening and press the bottom of the mounting groove.

[0018] Furthermore, the outer wall of the mounting groove is located within the clearance portion of the pressure block. 。

[0019] Furthermore, the “┌”-shaped mounting groove includes a horizontal portion and a vertical portion, wherein the horizontal portion and / or the vertical portion extends along the length of the frame body.

[0020] Furthermore, a drainage hole is provided on the outer wall of the mounting groove, and the bottom edge of the drainage hole is flush with the bottom of the mounting groove.

[0021] A photovoltaic module includes a photovoltaic module frame, a laminate, and a mounting bracket. The laminate is mounted on the photovoltaic module frame. The module is characterized by further including the fastening device. A "┌"-shaped mounting groove is formed on the outer side wall of the frame body of the photovoltaic module frame. The mounting groove forms an opening on the outer side wall of the frame body. A first pressing part is disposed within the mounting groove through the opening and presses the bottom of the mounting groove. A limiting opening is formed at the top of the mounting bracket. A first limiting plate is engaged in the limiting opening. A protrusion on the support part abuts against the upper surface of the mounting bracket.

[0022] Furthermore, it also includes a bolt assembly, wherein a through hole is provided on the pressure-bearing part, the bolt assembly passes through the through hole, and fixes the pressure block on the mounting bracket.

[0023] Furthermore, the mounting bracket is a hollow tubular shape, a blocking part is provided at the limiting opening, a baffle with a width greater than or equal to the limiting opening is provided inside the mounting bracket, the baffle has an internal thread, and the two ends of the bolt assembly are respectively installed and fixed on the pressure block and the baffle, for fixing the pressure block on the mounting bracket.

[0024] A photovoltaic module includes a photovoltaic module frame, a laminate, and a mounting bracket. The laminate is mounted on the photovoltaic module frame. The module also includes the fastening device. A "┌"-shaped mounting groove is formed on the outer side wall of the frame body of the photovoltaic module frame. The mounting groove forms an opening on the outer side wall of the frame body. A first pressing part and / or a second pressing part are disposed within the mounting groove through the opening and press against the bottom of the mounting groove. The two side walls of the mounting bracket are straight walls. Second limiting plates on the first and fourth support parts, as well as the second and third support parts, are respectively engaged on both sides of the mounting bracket for limiting movement. Protrusions on the support parts abut against the upper surface of the mounting bracket.

[0025] 3. Beneficial effects

[0026] Compared with existing known technologies, the technical solution provided by this utility model has the following significant advantages:

[0027] (1) The present invention provides a photovoltaic module fastening device, comprising a pressure block, the top of which is a pressure-bearing part, and a first pressing part and a second pressing part or support part provided below the pressure-bearing part; the first pressing part, the second pressing part and the support part are all plate-shaped structures, the first pressing part and the second pressing part are used to press on the photovoltaic module frame, and a clearance part is provided between the first pressing part and the second pressing part or support part; the ends of the first pressing part and the second pressing part or support part away from the pressure-bearing part are provided with protrusions. The protrusions increase the friction between the pressure block and the contact surface, preventing the pressure block from sliding in the X-axis direction; the pressing part and the clearance part are used in conjunction with the photovoltaic module frame to prevent the pressure block from moving in the Y-axis direction.

[0028] (2) The photovoltaic module fastening device provided by this utility model has a first pressing part and a second pressing part arranged below the pressure bearing part, and the two pressing parts are arranged on two sides of the pressure bearing part. It can fix two photovoltaic modules at the same time, and the distance between the two photovoltaic modules is short, which greatly reduces the installation space of the pressure block.

[0029] (3) The photovoltaic module fastening device provided by this utility model has a first pressing part and a supporting part arranged below the pressure bearing part. The supporting part is located on the side of the first pressing part away from the photovoltaic module frame, and the length of the supporting part in the Z-axis direction is greater than or equal to the length of the first pressing part. When the length of the supporting part in the Z-axis direction is greater than the length of the pressing part, a first limiting plate is provided at the middle of the end of the supporting part away from the pressure bearing part, and the protrusions on the supporting part are located on both sides of the first limiting plate. The first pressing part and the supporting part work together, and the presence of the first limiting plate makes it easier for the protrusions on the first pressing part and the supporting part to be inserted into the photovoltaic module, making the pressing block firm, stable and not shaking.

[0030] (4) The photovoltaic module fastening device provided by this utility model includes two support parts located inside the first and second pressing parts. The first and second pressing parts protrude outward relative to the support parts in the Y-axis direction. The length of the support parts in the Z-axis direction is greater than or equal to the length of the first and second pressing parts. A notch is provided in the middle of the two support parts to form a first support part, a second support part, a third support part, and a fourth support part located at the four corners of the pressure-bearing part. The first pressing part is located between the first and second support parts, and the second pressing part is located between the third and fourth support parts. This method of spaced-out arrangement of support parts increases the load-bearing capacity of the pressure block and prevents the pressure block from tilting under pressure. An empty part is located between the first or second pressing part and the support parts. The empty part is used in conjunction with the photovoltaic module frame to prevent the pressure block from moving in the Y-axis direction.

[0031] (5) The photovoltaic module fastening device provided by this utility model includes a second limiting plate in the pressure block, which is connected to the bottom end of the support part; the second limiting plate is longer than the support part in the Z direction, which solves the problem of misalignment between the pressure block and the photovoltaic module during the installation process and shortens the installation time of the pressure block.

[0032] (6) This utility model provides a photovoltaic module frame, wherein a "┌"-shaped mounting groove is opened on the outer side wall of the frame body, and the mounting groove forms an opening on the outer side wall of the frame body. A first clamping part and / or a second clamping part are disposed in the mounting groove through the opening and clamp the bottom of the mounting groove. This makes the frame body and the fastening device fit more stably. The opening allows the clamping part to easily snap into the mounting groove, thereby simplifying the installation positioning process, improving installation efficiency, and preventing the clamping block from accidentally falling off. The processing process is simple and efficient, and it is suitable for mass production.

[0033] (7) The photovoltaic module frame provided by this utility model has an outer wall of the mounting groove set in the clearance part of the pressure block. The outer wall of the mounting groove and the clearance part are tightly fitted, so that the support part and the outer wall of the mounting groove are also tightly fitted, further ensuring the sturdiness of the frame.

[0034] (8) The photovoltaic module frame provided by this utility model has a “┌” shaped mounting groove including a horizontal part and a vertical part. The horizontal part and / or the vertical part are connected along the length of the frame body, which greatly reduces the installation time and labor cost. At the same time, it makes the internal space more regular and facilitates later maintenance.

[0035] (9) The photovoltaic module frame provided by this utility model has a water leakage hole on the outer wall of the mounting groove. The bottom edge of the water leakage hole is flush with the bottom of the mounting groove, which can ensure that the water in the mounting groove can be discharged in time and prevent the pressure block and frame from rusting.

[0036] (10) This utility model provides a photovoltaic module, including a photovoltaic module frame, a laminate, and a mounting bracket. A first clamping part is disposed in a mounting groove and clamps the bottom of the mounting groove. A limiting opening is opened at the top of the mounting bracket, and a first limiting plate on the support part is inserted into the limiting opening. The protrusion on the support part abuts against the upper surface of the mounting bracket. It also includes a bolt assembly. A through hole is opened in the center of the pressure bearing part. The bolt assembly generates prestress on the pressure block through the through hole, causing the pressure block to deform slightly. At the same time, the protrusions of the support part and the clamping part are inserted into the photovoltaic module, increasing the friction. The pressure block will not move in the Z-axis direction, making the pressure block more firm, stable, and non-shaking. The clamping part and the mounting groove are tightly fitted, keeping the frame in a fixed state. Combined with the bolt assembly on the pressure block, the frame, pressure block, laminate, and mounting bracket are installed more firmly, stably, and without shaking. Moreover, the use of this pressure block and mounting groove solves the problem of the glass surface of the full-screen module being fragile under the action of a conventional pressure block.

[0037] (11) The photovoltaic module provided by this utility model has a hollow tubular mounting bracket. A blocking part is provided at the limiting opening. A baffle with a width greater than or equal to the limiting opening is provided inside the mounting bracket. The baffle has internal threads. The two ends of the bolt assembly are respectively installed and fixed on the pressure block and the baffle to fix the pressure block on the mounting bracket. The baffle can be fixed or movable. It can be used in conjunction with the bolt assembly to fix the photovoltaic module well.

[0038] (12) The photovoltaic module provided by this utility model has straight side walls on both sides of the mounting bracket. The second limiting plates on the four support parts are respectively stuck on both sides of the mounting bracket and tightly fitted with the side walls of the mounting bracket. The protrusions on the support parts abut against the upper surface of the mounting bracket. The protrusions on the pressing parts also abut against the bottom of the mounting groove. The three cooperate with each other, making it easy to align the pressing block with the mounting bracket during installation, and ensuring that the photovoltaic module is installed more firmly, stably and without shaking. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the pressure block structure in Example 1;

[0040] Figure 2 This is a schematic diagram of the pressure block structure in Example 2;

[0041] Figure 3 This is a top view of the pressure block in Example 2;

[0042] Figure 4 This is a side view of the frame in this utility model;

[0043] Figure 5 This is a schematic diagram of the structure of the pressure block mounting surface of the frame in this utility model;

[0044] Figure 6 This utility model Figure 5 A schematic diagram of the structure after the pressure block of Example 2 with the AA-face cross section is installed;

[0045] Figure 7 This is a side view of the frame in another embodiment of the present invention;

[0046] Figure 8 This is a structural schematic diagram of the pressure block mounting surface of the frame in another embodiment of the present invention;

[0047] Figure 9 This utility model Figure 8 A schematic diagram of the structure after the pressure block of Example 2 with the BB-side cross section is installed;

[0048] Figure 10 This is a schematic diagram of the structure when the pressure block is unstable after installation in Example 2;

[0049] Figure 11 This is a schematic diagram of the pressure block structure in Example 3;

[0050] Figure 12 In Example 5 Figure 11 A schematic diagram of the structure after the pressure block is installed;

[0051] Figure 13 Another perspective in Example 5 Figure 11 A schematic diagram of the structure after the pressure block is installed;

[0052] Figure 14 This is a schematic diagram of the pressure block in Example 4;

[0053] Figure 15 This is a right view of the pressure block in Example 4;

[0054] Figure 16 This is a rear view of the pressure block in Example 4;

[0055] Figure 17 This is a top view of the pressure block in Example 4;

[0056] Figure 18 In Example 5 Figure 14 A schematic diagram of the structure after the pressure block is installed;

[0057] Figure 19 Another perspective in Example 5 Figure 14 A schematic diagram of the structure after the pressure block is installed.

[0058] Explanation of the labels in the diagram:

[0059] 1. Frame body; 11. Mounting groove; 12. Press block mounting surface; 13. Bottom surface; 14. Laminate mounting surface; 15. Groove surface; 16. Support surface; 17. Opening; 18. Drain hole;

[0060] 2. Pressure block; 21. First pressing part; 22. Support part; 221. First support part; 222. Second support part; 223. Third support part; 224. Fourth support part; 23. Pressure bearing part; 24. Through hole; 25. Protrusion; 26. Clearance part; 27. Second limiting plate; 28. First limiting plate; 29. ​​Second pressing part;

[0061] 3. Bolt assembly; 31. Stud; 32. Nut; 33. Anti-slip texture; 34. Baffle;

[0062] 4. Laminated components;

[0063] 5. Mounting bracket; 51. Top of bracket; 52. Side wall of bracket; 53. Bottom of bracket; 54. Blocking part. Detailed Implementation

[0064] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention 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 the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0065] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0066] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] In this utility model, unless otherwise explicitly 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 is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0070] Example 1

[0071] This utility model provides a photovoltaic module fastening device, such as... Figure 1As shown, the device includes a pressure block 2, with a pressure-bearing portion 23 at its top (the pressure-bearing portion 23 is the pressure-bearing surface). Below the pressure-bearing portion 23, a first pressing portion 21 and a second pressing portion 29 are provided. Both the first pressing portion 21 and the second pressing portion 29 are plate-shaped structures used to press against the photovoltaic module frame. The first pressing portion 21 and the second pressing portion 29 are located on two sides of the pressure-bearing portion 23. A clearance portion 26 is provided between the first pressing portion 21 and the second pressing portion 29. In this embodiment, from... Figure 1 Looking at the position of the pressure block 2, the X-axis represents the length of the pressure block 2, the Y-axis represents the width of the pressure block 2, and the Z-axis represents the vertical direction of the pressure block 2. The length of the first pressing part 21 in the Z-axis direction is equal to the length of the second pressing part 29. The ends of the first pressing part 21 and the second pressing part 29 away from the pressure-bearing part 23 are provided with protrusions 25. The protrusions 25 increase the friction between the pressure block 2 and the contact surface, preventing the pressure block 2 from sliding in the X-direction. The first pressing part 21, the second pressing part 29, and the clearance part 26 cooperate with the photovoltaic module frame to prevent the pressure block 2 from moving in the Y-axis direction. The pressure block 2 can simultaneously fix two photovoltaic modules.

[0072] Example 2

[0073] This utility model discloses a photovoltaic module fastening device. Based on embodiment 1, the pressure block 2 further includes two support parts 22 located inside the first pressing part 21 and the second pressing part 29, such as... Figure 2 , Figure 3 , Figure 6 and Figure 9 As shown, it includes a pressure block 2, which includes a first pressing part 21, a second pressing part 29, a support part 22, and a pressure-bearing part 23. The support part 22, the first pressing part 21, and the second pressing part 29 are all disposed below the pressure-bearing part 23. The first pressing part 21 and / or the second pressing part 29 can both be referred to as a pressing part. The support part 22, the first pressing part 21, and the second pressing part 29 are all vertically disposed on the same side of the pressure-bearing part 23. In this embodiment, from Figure 2 From the position of the pressure block 2, the X-axis represents the length direction of the pressure block 2, the Y-axis represents the width direction of the pressure block 2, and the Z-axis represents the vertical direction of the pressure block 2. The length of the support part 22 in the Z-axis direction is greater than or equal to the length of the first pressing part 21 and the second pressing part 29. The ends of the support part 22, the first pressing part 21, and the second pressing part 29 away from the pressure-bearing part 23 are provided with protrusions 25. The protrusions 25 increase the friction between the pressure block 2 and the contact surface, preventing the pressure block 2 from sliding in the X-axis direction. The first pressing part 21 and the second pressing part 29 protrude outward relative to the support part 22 in the Y-axis direction, forming a clearance part 26 between the first pressing part 21 or the second pressing part 29 and the support part 22. The clearance part 26 is used in conjunction with the photovoltaic module to prevent the pressure block 2 from moving in the Y-axis direction. In this embodiment, the clearance part 26 is a groove.

[0074] The two support parts 22 have notches in the middle, forming a support part 22 consisting of four parts: a first support part 221, a second support part 222, a third support part 223, and a fourth support part 224. The four support parts 22 are respectively located at the four corners of the pressure-bearing part 23. The four support parts 22 are spaced apart, which increases the bearing capacity of the pressure block 2 and prevents the pressure block 2 from tilting under the action of the bolt assembly 3, which is the clamping device.

[0075] A clamping part is disposed between two support parts 22. There are two clamping parts: a first clamping part 21 and a second clamping part 29. The first clamping part 21 and the second clamping part 29 are positioned opposite each other and are respectively disposed on two sides of the pressure-bearing part 23. The first clamping part 21 is disposed between the first support part 221 and the second support part 222, and in the Y direction, the first clamping part 21 forms a clearance 26 with the first support part 221 and the second support part 222. The second clamping part 29 is disposed between the third support part 223 and the fourth support part 224, and in the Y direction, the second clamping part 29 forms another clearance 26 with the third support part 223 and the fourth support part 224. The first clamping part 21 and the second clamping part 29 can simultaneously fix two photovoltaic modules.

[0076] Example 3

[0077] This utility model provides a photovoltaic module fastening device, which is basically the same as Embodiment 2, except that the pressure block 2 has an added second limiting plate 27, such as... Figure 11-13 As shown, the first support portion 221 and the second support portion 222 are arranged in pairs, and the third support portion 223 and the fourth support portion 224 are arranged in pairs. The bottom ends of the first support portion 221 and the second support portion 222, as well as the bottom ends of the third support portion 223 and the fourth support portion 224, are respectively provided with second limiting plates 27. The protrusions 25 are located on the bottom end faces of the first support portion 221, the second support portion 222, the third support portion 223, and the fourth support portion 224. The second limiting plate 27 is perpendicular to the bottom surface of the support portion 22. The second limiting plate 27 is longer than the support portion 22 in the Z direction and extends away from the pressure-bearing portion 23.

[0078] Because the pressure block 2 in Example 2 may misalign during installation, such as... Figure 10 As shown, in Embodiment 2, the pressure block 2 was offset from the mounting bracket 5 during installation. Therefore, a second limiting plate 27 was added to the pressure block 2 to prevent misalignment with the mounting bracket 5 during installation, thus avoiding misalignment issues and shortening the installation time. In this embodiment, the pressure block 2 can simultaneously fix two photovoltaic modules.

[0079] Example 4

[0080] This utility model provides a photovoltaic module fastening device, such as... Figure 14-19 As shown, the device includes a pressure block 2, with a pressure-bearing portion 23 at its top. Below the pressure-bearing portion 23 are a first pressing portion 21 and a support portion 22. The support portion 22 is located on the side of the first pressing portion 21 furthest from the photovoltaic module frame. In this embodiment, the support portion 22 and the first pressing portion 21 are positioned opposite each other on two sides of the pressure-bearing portion 23. The length of the support portion 22 in the Z-axis direction is greater than the length of the first pressing portion 21. The end of the first pressing portion 21 furthest from the pressure-bearing portion 23 has a protrusion 25. The middle of the end of the support portion 22 furthest from the pressure-bearing portion 23 has a first limiting plate 28, and the protrusion 25 on the support portion 22 is located on both sides of the first limiting plate 28. The first limiting plate 28 does not have protrusions 25. The protrusions 25 increase the friction between the pressure block 2 and the contact surface, preventing the pressure block 2 from sliding in the X-axis direction. The first pressing portion 21 and the support portion 22 are used in conjunction with the photovoltaic module to prevent the pressure block 2 from moving in the Y-axis direction.

[0081] The pressure block 2 in this embodiment is used to fix individual photovoltaic modules, which is more stable and secure, and the installation and disassembly are more flexible. It can avoid uneven force caused by multiple photovoltaic modules sharing the pressure block 2, reduce the risk of module damage, and is more suitable for fixing photovoltaic modules near the edge.

[0082] Example 5

[0083] A photovoltaic module of this utility model, such as Figure 2-6 As shown, the photovoltaic module includes a frame, a laminate 4, a mounting bracket 5, a bolt assembly 3 (i.e., a clamping device), and a fastening device as in Embodiment 2. Both the photovoltaic module frame and the fastening device are mounted on the mounting bracket 5. The photovoltaic module frame includes a frame body 1. A "┌"-shaped mounting groove 11 is opened on the outer side wall of the frame body 1. The mounting groove 11 forms an opening 17 on the outer side wall of the frame body 1. The first clamping part 21 and / or the second clamping part 29 are disposed in the mounting groove 11 through the opening 17 and clamp the bottom of the mounting groove 11. Specifically, the frame body 1 includes a bottom surface 13, a pressing block mounting surface 12, and a laminate mounting surface 14. The bottom surface 13 and the laminate mounting surface 14 are arranged in parallel. The pressing block mounting surface 12 is connected between the bottom surface 13 and the laminate mounting surface 14. The laminate 4 is disposed on the laminate mounting surface 14. The frame body 1 also includes a groove surface 15, which is disposed on the side of the pressing block mounting surface 12 facing the laminate mounting surface 14. The groove surface 15 and the pressing block mounting surface 12 form a "┌"-shaped mounting groove 11. The "┌"-shaped mounting groove 11 includes a horizontal part and a vertical part. In this embodiment, the groove surface 15 is an L-shaped surface. The upper end of the groove surface 15 is connected to the laminate mounting surface 14, and the lower end is connected to the pressing block mounting surface 12, so that the groove surface 15, the laminate mounting surface 14, and the pressing block mounting surface 12 together form a mounting groove 11 with a rectangular vertical part.

[0084] The first pressing part 21 and / or the second pressing part 29 of the pressure block 2 are inserted into the mounting groove 11 and tightly fitted with the mounting groove 11; the outer wall of the mounting groove 11 is located inside the clearance part 26 of the pressure block 2, that is, the pressure block mounting surface 12 is set inside the clearance part 26 of the pressure block 2, and the pressure block mounting surface 12 and the clearance part 26 are tightly fitted. In this embodiment, the clearance part 26 is a groove. This makes the support part 22 fit tightly against the outer wall of the pressure block mounting surface 12, realizing the fastening fit between the frame body 1 and the pressure block 2.

[0085] The outer wall of the frame body 1 and the outer wall of the mounting groove 11 are both pressure block mounting surfaces 12.

[0086] The pressure-bearing part 23 of the pressure block 2 has a through hole 24 in the center, and the bolt assembly 3 is set on the pressure-bearing part 23 through the through hole 24. When the photovoltaic module is installed, the photovoltaic module frame and the pressure block 2 are fixedly installed on the mounting bracket 5 together. The method of fixing and installing them by the bolt assembly 3 is the existing technology. In this embodiment, the bolt assembly 3 includes a stud 31 and a nut 32. The nut 32 is connected to the stud 31. The stud 31 passes through the through hole 24 on the pressure bearing part 23 and is connected to the mounting bracket 5. The mounting bracket 5 is provided with a threaded hole that matches the stud 31. The diameter of the stud 31 is smaller than the diameter of the through hole 24, and the diameter of the nut 32 is larger than the diameter of the through hole 24. The two ends of the bolt assembly 3 are respectively installed and fixed on the threaded holes of the pressure block 2 and the mounting bracket 5 to stabilize the photovoltaic module. The bolt assembly 3 also includes anti-slip texture 33 provided on the nut 32, which increases friction and facilitates the tightening of the nut 32. After the nut 32 is tightened, the pressure block 2 is slightly deformed, so that the protrusions 25 of the first pressing part 21 and / or the second pressing part 29 are inserted into the photovoltaic module, increasing the friction and preventing the pressure block 2 from sliding in the X-axis direction. The action of the bolt assembly 3 on the pressure block 2 keeps the pressure block 2 stable in the Z-axis direction.

[0087] The protrusions 25 are tightly fitted to the photovoltaic module. The protrusions 25 on the first clamping part 21 and / or the second clamping part 29 are tightly fitted to the bottom surface of the mounting groove 11; the protrusions 25 on the support part 22 are tightly fitted to the mounting bracket 5. Under the action of the bolt assembly 3, the pressure block 2 is slightly deformed. The prestress between the pressure block 2 and the photovoltaic module, and between the pressure block 2 and the mounting bracket 5, causes the protrusions 25 to sink into the frame body 1 and the mounting bracket 5, increasing friction and thus fixing the photovoltaic module. This allows the photovoltaic module to be installed firmly, stably, and without shaking even in harsh weather conditions, and this design and installation method of the pressure block 2 will not cause the glass surface of the full-screen module to break.

[0088] The mounting bracket 5 can be a hollow tube with a limiting opening. The mounting bracket 5 is formed into a U-shaped structure by the bracket top 51, the bracket side wall 52, the bracket bottom surface 53, and the blocking part 54. In embodiment 2, the support part 22 of the pressure block 2 is tightly connected to the bracket top 51. However, during the installation of the pressure block 2, if... Figure 10 As shown, a misalignment may occur between the top 51 of the bracket and the support portion 22 of the pressure block 2. Another type of photovoltaic module includes the frame body 1, laminate 4, mounting bracket 5, bolt assembly 3, and the fastening device in embodiment 3, such as... Figure 11-13 As shown, in the fastening device of embodiment 3, the support part 22 of the pressure block 2 is tightly fitted with the top end 51 of the bracket; the side walls 52 of the brackets on both sides of the mounting bracket 5 are straight walls, and the second limiting plates 27 on the first support part 221, the fourth support part 224, the second support part 222, and the third support part 223 are respectively stuck on both sides of the mounting bracket 5 for limiting; to prevent misalignment of the pressure block 2 during installation, the protrusion 25 on the support part 22 abuts against the upper surface of the mounting bracket 5, and the protrusion 25 on the first pressing part 21 and / or the second pressing part 29 is tightly fitted with the bottom surface of the mounting groove 11.

[0089] Bolt assembly 3 is installed on pressure-bearing part 23 through through hole 24. Bolt assembly 3 passes through through hole 24 and fixes pressure block 2 to mounting bracket 5. Mounting bracket 5 is provided with baffle 34 with a width greater than or equal to the limiting opening. The baffle 34 has internal threads. The two ends of bolt assembly 3 are respectively installed and fixed on pressure block 2 and baffle 34 for fixing pressure block 2 to mounting bracket 5. Specifically, the stud 31 passes through the through hole 24 and the baffle 34. The internal thread of the baffle 34 matches the stud 31. The baffle 34 is located directly below the blocking part 54. The width of the baffle 34 is greater than the limiting opening of the mounting bracket 5 and less than the inner diameter of the bracket side wall 52. After the nut 32 is tightened, the baffle 34 fits against the lower end of the blocking part 54. The stud 31, the baffle 34 and the pressure block 2 are locked together. The pressure block 2 is slightly deformed, so that the protrusions 25 on the first pressing part 21 and / or the second pressing part 29 are inserted into the mounting groove 11 of the frame body 1, and the protrusions 25 on the support part 22 are inserted into the top of the bracket 51, increasing the friction to make the photovoltaic module more firmly, stably and without shaking.

[0090] To adapt to installation requirements in different scenarios, another type of photovoltaic module includes a frame body 1, a laminate 4, a mounting bracket 5, a bolt assembly 3, and the fastening device from Example 1, such as... Figure 1As shown, in the fastening device of Embodiment 1, the pressure block 2 does not have a support part 22. The first pressing part 21 and the second pressing part 29 of the pressure block 2 are of equal length in the Z-axis direction. The first pressing part 21 and / or the second pressing part 29 are inserted into the mounting groove 11 of the frame body 1 and are tightly fitted with the mounting groove 11. One end of the bolt assembly 3 is set on the bearing part 23 through the through hole 24, and the other end passes through the baffle 34 in the mounting bracket 5. After tightening the bolt assembly 3, the pressure block 2 and the frame body 1 are fixed on the mounting bracket 5. The protrusions 25 provided on the first pressing part 21 and / or the second pressing part 29 are tightly fitted with the bottom surface 13 of the mounting groove 11. Under the action of the bolt assembly 3, the pressure block 2 is slightly deformed, and the protrusions 25 are inserted into the frame body 1, increasing the friction and thus fixing the photovoltaic module.

[0091] In one specific embodiment, the frame body 1 also includes a support surface 16, which is vertically disposed between the laminate mounting surface 14 and the bottom surface 13, and provides support for the frame body 1.

[0092] As a specific solution, the pressure block 2 can be used in combination with two frame bodies 1, located between the two frame bodies 1. The first pressing part 21 and the second pressing part 29 of the pressure block 2 are respectively inserted into the mounting grooves 11 of the two frame bodies 1, and fit tightly with the mounting grooves 11, so that the photovoltaic modules are more reliably fixed. The pressure block 2 can also be used in other locations such as glass curtain walls and photovoltaic curtain walls.

[0093] In another case, the photovoltaic module includes a frame body 1, a laminate 4, a mounting bracket 5, a bolt assembly 3, and the fastening device from embodiment 4, such as... Figure 14-19As shown, in the fastening device of embodiment 4, the support part 22 of the pressure block 2 is set at the top 51 of the bracket of the mounting bracket 5. The first limiting plate 28 is stuck in the limiting opening of the mounting bracket 5. The first pressing part 21 is inserted into the mounting groove 11 of the frame body 1 and presses the bottom of the mounting groove 11 tightly. The protrusion 25 provided on the support part 22 abuts against the upper surface of the mounting bracket 5, that is, it is tightly fitted with the top 51 of the bracket. The protrusion 25 provided on the first pressing part 21 is tightly fitted with the bottom surface of the mounting groove 11. The bolt assembly 3 passes through the through hole 2. 4. A stud 31 is installed on the pressure-bearing part 23, passing through the through hole 24 and the baffle 34. The baffle 34 has internal threads and is embedded in the limiting opening of the mounting bracket 5. The baffle 34 is tightly fitted to the inner wall of the blocking part 54 of the mounting bracket 5. The two ends of the bolt assembly 3 are respectively installed and fixed on the pressure block 2 and the baffle 34 to fix the pressure block 2 on the mounting bracket 5. Under the action of the bolt assembly 3, the pressure block 2 is slightly deformed, so that the protrusion 25 is inserted into the frame body 1 and the mounting bracket 5, increasing the friction and thus fixing the photovoltaic module. The pressure block 2 is used to fix individual photovoltaic modules, making installation and disassembly more flexible. It can avoid uneven force caused by multiple photovoltaic modules sharing the pressure block 2, reduce the risk of module damage, and is more suitable for fixing photovoltaic modules near the edge.

[0094] The protrusion 25 is embedded in the frame body 1 and the mounting bracket 5, providing good conductivity and eliminating the need for lightning protection node wires, thus saving a construction step.

[0095] like Figure 4-6 As shown, the mounting surface 12 of the frame body 1 has an opening 17, which serves as a mounting hole. In this embodiment, several openings 17 are spaced apart and matched to the size of the pressure block 2. The first pressing part 21 and / or the second pressing part 29 of the pressure block 2 can pass through the opening 17 and fit into the mounting groove 11, thereby simplifying the installation and positioning process, improving installation efficiency, and preventing the pressure block 2 from accidentally falling off. The mounting surface 12 of the frame body 1 also has a drainage hole 18, the bottom edge of which is flush with the bottom of the mounting groove 11. This ensures that water accumulated in the mounting groove 11 can be drained in time, preventing the pressure block 2 and the frame body 1 from rusting.

[0096] Example 6

[0097] One type of photovoltaic module in this embodiment, such as Figure 7-9 , Figure 12 and Figure 18As shown, the structure of its frame body 1 is basically the same as that of embodiment 5, except that the specific structure of the opening 17 is different. In this embodiment, only one opening 17 is provided on the pressure block mounting surface 12. The opening 17 is a long strip hole with the same length as the pressure block mounting surface 12. The fastening devices in embodiments 1-4 can all be applied to the frame body 1 in this embodiment. The horizontal and vertical parts of the "┌" shaped mounting groove 11 are both through the length direction of the frame body 1. The pressure block 2 passes through the opening 17 and is inserted into the mounting groove 11 to achieve a tight connection between the pressure block 2 and the frame body 1. In this embodiment, the profile is directly extruded and formed, the processing flow is simple and efficient, and it is suitable for mass production.

[0098] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A photovoltaic module fastening device, characterized in that: It includes a pressure block (2), the top of which is a pressure-bearing part (23), and a first pressing part (21) and a second pressing part (29) or a support part (22) are provided below the pressure-bearing part (23); The first pressing part (21), the second pressing part (29) and the support part (22) are all plate-shaped structures. The first pressing part (21) and the second pressing part (29) are used to press on the frame of the photovoltaic module. A clearance part (26) is provided between the first pressing part (21) and the second pressing part (29) or the support part (22). The ends of the first pressing part (21) and the second pressing part (29) or the support part (22) away from the pressure-bearing part (23) are provided with protrusions (25).

2. A photovoltaic module fastening device according to claim 1, wherein: The pressure-bearing part (23) includes a first pressing part (21) and a second pressing part (29) below it, and the first pressing part (21) and the second pressing part (29) are disposed on two sides of the pressure-bearing part (23).

3. A photovoltaic module fastening device according to claim 1, wherein: The pressure-bearing part (23) includes a first pressing part (21) and a support part (22) below it. The support part (22) is located on the side of the first pressing part (21) away from the photovoltaic module frame. The length of the support part (22) in the Z-axis direction is greater than or equal to the length of the first pressing part (21).

4. A photovoltaic module fastening device according to claim 3, wherein: When the length of the support part (22) in the Z-axis direction is greater than the length of the pressing part (21), a first limiting plate (28) is provided at the middle of one end of the support part (22) away from the pressure bearing part (23), and the protrusions (25) on the support part (22) are located on both sides of the first limiting plate (28).

5. A photovoltaic module fastening device according to claim 2, wherein: The pressure block (2) also includes two support portions (22) located inside the first pressing portion (21) and the second pressing portion (29). The first pressing portion (21) and the second pressing portion (29) protrude outward relative to the support portions (22) in the Y-axis direction. The length of the support portion (22) in the Z-axis direction is greater than or equal to the length of the first pressing portion (21) and the second pressing portion (29).

6. A photovoltaic module fastening device according to claim 5, characterized in that: The two support parts (22) are provided with a notch in the middle to form a first support part (221), a second support part (222), a third support part (223) and a fourth support part (224) provided at the four corners of the pressure-bearing part (23). The first pressing part (21) is provided between the first support part (221) and the second support part (222), and in the Y direction, a clearance part (26) is formed between the first pressing part (21) and the first support part (221) and the second support part (222). The second pressing part (29) is provided between the third support part (223) and the fourth support part (224), and in the Y direction, another clearance part (26) is formed between the second pressing part (29) and the third support part (223) and the fourth support part (224).

7. A photovoltaic module fastening device according to claim 6, characterized in that: The first support portion (221) and the second support portion (222) are arranged in pairs, and the third support portion (223) and the fourth support portion (224) are arranged in pairs. The bottom ends of the first support portion (221) and the second support portion (222) and the bottom ends of the third support portion (223) and the fourth support portion (224) are respectively provided with second limiting plates (27). The protrusion (25) is located on the bottom end face of the first support portion (221), the second support portion (222), the third support portion (223) and the fourth support portion (224).

8. A photovoltaic module frame comprising a frame body (1), characterized in that: The frame body (1) is compatible with the fastening device according to any one of claims 1-7; a "┌" shaped mounting groove (11) is provided on the outer side wall of the frame body (1), the mounting groove (11) forms an opening (17) on the outer side wall of the frame body (1), the first pressing part (21) and / or the second pressing part (29) are provided in the mounting groove (11) through the opening (17) and press the bottom of the mounting groove (11).

9. A photovoltaic module frame according to claim 8, characterized in that: The outer wall of the mounting groove (11) is located inside the clearance part (26) of the pressure block (2). 。 10. A photovoltaic module frame according to claim 9, wherein: The “┌”-shaped mounting groove (11) includes a horizontal part and a vertical part, and the horizontal part and / or the vertical part extends through the length of the frame body (1).

11. A photovoltaic module frame according to any one of claims 8-10, characterized in that: The outer wall of the mounting groove (11) is provided with a water leakage hole (18), and the bottom edge of the water leakage hole (18) is flush with the bottom of the mounting groove (11).

12. A photovoltaic module, comprising a photovoltaic module frame, a laminate (4), and a mounting bracket (5), wherein the laminate (4) is mounted on the photovoltaic module frame, characterized in that: It also includes the fastening device described in claim 4, wherein a “┌”-shaped mounting groove (11) is opened on the outer side wall of the frame body (1) of the photovoltaic module frame, the mounting groove (11) forms an opening (17) on the outer side wall of the frame body (1), the first pressing part (21) is disposed in the mounting groove (11) through the opening (17) and presses the bottom of the mounting groove (11); a limiting opening is opened on the top of the mounting bracket (5), the first limiting plate (28) is stuck in the limiting opening, and the protrusion (25) on the support part (22) abuts against the upper surface of the mounting bracket (5).

13. A photovoltaic module according to claim 12, wherein, It also includes a bolt assembly (3), on which a through hole (24) is provided. The bolt assembly (3) passes through the through hole (24) and fixes the pressure block (2) on the mounting bracket (5).

14. A photovoltaic module according to claim 13, wherein: The mounting bracket (5) is a hollow tube. A blocking part (54) is provided at the limiting opening. A baffle (34) with a width greater than or equal to the limiting opening is provided inside the mounting bracket (5). The baffle (34) has an internal thread. The two ends of the bolt assembly (3) are respectively installed and fixed on the pressure block (2) and the baffle (34) to fix the pressure block (2) on the mounting bracket (5).

15. A photovoltaic module, comprising a photovoltaic module frame, a laminate (4), and a mounting bracket (5), wherein the laminate (4) is mounted on the photovoltaic module frame, characterized in that: It also includes the fastening device described in claim 7, wherein a “┌”-shaped mounting groove (11) is provided on the outer side wall of the frame body (1) of the photovoltaic module frame, the mounting groove (11) forms an opening (17) on the outer side wall of the frame body (1), the first pressing part (21) and / or the second pressing part (29) are disposed in the mounting groove (11) through the opening (17) and press the bottom of the mounting groove (11); the two side walls of the mounting bracket (5) are straight walls, and the second limiting plates (27) on the first support part (221) and the fourth support part (224) and the second support part (222) and the third support part (223) are respectively stuck on the two sides of the mounting bracket (5) for limiting; the protrusion (25) on the support part (22) abuts against the upper surface of the mounting bracket (5).

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