A clamping and fixing device for photovoltaic modules and a photovoltaic system

Abstract

This utility model discloses a top-tightening photovoltaic module clamping device and a photovoltaic system. The photovoltaic module clamping device includes a clamping block and a tightening bolt. The clamping block includes a clamping part that engages with a crossbeam and a tightening part that presses against the frame of the photovoltaic module. The clamping part has an inverted U-shaped structure, including a slot and upright plates on opposite sides of the slot. Each upright plate has a screw hole. The tightening bolt is screwed into the screw holes and tightened against the side wall of the crossbeam. This effectively avoids the problem of the fastener being unable to install when there is interference between the inclined beam and the module gap, effectively solving the problem of clamping block installation and ensuring the reliability of module fixation.

Description

[Technical Field]

[0001] This utility model belongs to the field of photovoltaic technology, specifically relating to a photovoltaic module installation technology. [Background Technology]

[0002] Currently, during the installation of photovoltaic power generation plants, there is interference between the gaps and inclined beams between the modules. That is, the projection positions of the gaps and inclined beams roughly coincide. In areas with interference, ordinary module back-mounted clamping blocks cannot be used to fix the photovoltaic modules because the back-mounted clamping blocks interfere with the inclined beams. Even with optimization of the module clamping blocks, installation problems still exist.

[0003] Existing standard component back-mounted clamping block fasteners mainly consist of a component clamping block pad, a component clamping block, a reinforcing clamping plate, and a U-bolt assembly. However, in areas where there is interference between the component seam and the inclined beam, the standard component back-mounted clamping block U-bolt assembly conflicts with the inclined beam, making installation impossible.

[0004] However, there are currently some clamping blocks on the market that use extended arm lengths to install the clamping plates, which can avoid the inclined beam position. However, the clamping block arm is too long, which is not conducive to fixing the components and poses certain safety hazards.

[0005] In summary, both of the above-mentioned component fasteners have certain problems during installation. [Utility Model Content]

[0006] To address the problem that ordinary module back-type clamping blocks cannot secure photovoltaic modules due to interference between modules and inclined beams, this utility model aims to provide a clamping and fixing photovoltaic module clamping block device and photovoltaic system that avoids interference with inclined beams and ensures reliable fixation.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] First, a clamping and fixing photovoltaic module pressing device is provided for fixing photovoltaic modules to a crossbeam. The photovoltaic module pressing device includes a pressing block and a clamping bolt. The pressing block includes a locking part that engages with the crossbeam and a pressing part that presses against the frame of the photovoltaic module. The locking part has an inverted U-shaped structure, including a slot and upright plates on opposite sides of the slot. Both upright plates are provided with screw holes. The clamping bolt is screwed into the screw holes and clamped and fixed against the side wall of the crossbeam.

[0009] Preferably, the outer side of the upright plate is provided with a reinforcing boss at the position corresponding to the screw hole.

[0010] Preferably, the transverse cross-section of the pressing part is a right-angled trapezoid, and the bottom edge is pressed onto the frame of the photovoltaic module; and / or, the pressing part is provided with a longitudinally penetrating hollow cavity.

[0011] Preferably, the pressing block further includes a bridge portion connecting the engaging portion and the pressing portion.

[0012] Preferably, the bridge section includes a bridge surface higher than the engaging section and the pressing section, and transition slopes extending obliquely from both sides of the bridge surface toward the engaging section and the pressing section; and / or, the bottom surface of the pressing section is provided with anti-slip texture.

[0013] Preferably, a longitudinal water guide channel is installed on the crossbeam, and the photovoltaic module frame is pressed against the longitudinal water guide channel, and the bridge section spans the side wall of the longitudinal water guide channel.

[0014] Preferably, the pressure block is an integral die-cast structure.

[0015] Preferably, the pressure block is made of aluminum alloy or magnesium-aluminum-zinc coated steel.

[0016] Preferably, an inclined beam is provided below the photovoltaic module pressing device, and the crossbeam is vertically and crosswise fixed on the inclined beam.

[0017] In addition, a photovoltaic system is provided, including a photovoltaic support and a photovoltaic module. The photovoltaic support is provided with a number of longitudinally extending inclined beams and a number of cross beams that are vertically intersecting and fixed above the inclined beams. The aforementioned top-tightening photovoltaic module pressure block fixing device is installed on the cross beams.

[0018] The present invention adopts the above technical solution and has the following beneficial effects:

[0019] 1. The photovoltaic module clamping device includes a clamping block and a tightening bolt. The clamping block includes a clamping part that engages with a crossbeam and a tightening part that presses against the photovoltaic module frame. The clamping part has an inverted U-shaped structure, including a slot and upright plates on opposite sides of the slot. Each upright plate has a screw hole. The tightening bolt is screwed into the screw holes and tightened against the side wall of the crossbeam. This technical solution, with its inverted U-shaped clamping part, allows for a closer fit to the crossbeam and allows sliding along the crossbeam direction, adjusting its position as needed. Finally, the tightening bolt secures the clamping block and the crossbeam, forming a unified whole, ensuring reliable fixation and thus guaranteeing the overall stability and safe connection of the module.

[0020] Moreover, there is no need to install it on top of the module; it can be fixed by tightening bolts at the bottom of the photovoltaic module, which improves the convenience of installation and construction efficiency.

[0021] In addition, compared with the existing back-type pressure block fasteners, the photovoltaic module pressure block device is located above the inclined beam because the U-bolts have been eliminated. There is no interference with the inclined beam, which effectively avoids the problem of the fasteners being unable to be installed when there is interference between the inclined beam and the module gap. This effectively solves the problem of pressure block installation and fixation and the reliability of module fixation.

[0022] 2. A reinforcing boss is provided on the outer side of the upright plate corresponding to the screw hole position, which increases the thickness at the screw hole. This increases the depth of the screw hole and the length of the threaded engagement with the tightening bolt, thereby preventing the tightening bolt from loosening and improving the reliability of the clamping block and the crossbeam. At the same time, the reinforcing boss also enhances the structural strength of the upright plate.

[0023] 3. The transverse cross section of the pressing part is a right trapezoidal shape. On the one hand, it ensures that the bottom edge has a large enough area to be pressed onto the photovoltaic module frame. On the other hand, it can save materials outside the waist part and avoid interference between the waist part and the photovoltaic module frame.

[0024] In addition, the pressing part has a longitudinally through hollow cavity, which can reduce weight while ensuring the structural strength of the pressing block fastener, and also save materials and reduce costs.

[0025] The bottom surface of the pressing part is provided with anti-slip texture to increase the friction between the pressing block and the component frame, improve the connection performance, enhance the pressing effect, and prevent sliding and misalignment.

[0026] 4. The photovoltaic module frame is pressed against the longitudinal water guide channel, meaning that the longitudinal water guide channel is fixed simultaneously with the photovoltaic module. The bridge section spans the side wall of the longitudinal water guide channel. This solves the problem of interference between the module gap and the inclined beam, and conflict between the U-bolt assembly and the inclined beam, which prevents installation using ordinary back-type pressure block fasteners. It ensures that the pressing part is pressed against the photovoltaic module frame while avoiding interference with the side wall of the longitudinal water guide channel.

[0027] 5. The clamping block material can be lightweight materials such as aluminum alloy and magnesium-aluminum-zinc coated steel, and can be die-cast, which not only increases the service life (up to 25 years) and allows for one-time installation to meet the full life cycle function, but also matches the color of the component frame, making it more aesthetically pleasing. Compared with traditional back-type clamping blocks, it can achieve consistent quality and specifications, and mass production can also be carried out using die stamping.

[0028] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0029] The utility model will be further described below with reference to the accompanying drawings:

[0030] Figure 1 This is a schematic diagram illustrating the application of the photovoltaic module pressing device of this utility model;

[0031] Figure 2 This is a schematic diagram of the photovoltaic module pressing device of this utility model;

[0032] Figure 3 This is a longitudinal view of the photovoltaic module pressing device of this utility model;

[0033] Figure 4 for Figure 3 Sectional view of AA;

[0034] Figure 5 This is a horizontal view of the photovoltaic module pressing device of this utility model;

[0035] Reference numerals: 1. Pressing block; 11. Engaging part; 111. Slot; 112. Vertical plate; 113. Reinforcing boss; 12. Pressing part; 121. Hollow cavity; 122. Anti-slip texture; 13. Bridge section; 131. Bridge surface; 132. Transition slope; 2. Tightening bolt; 3. Frame; 4. Longitudinal water guide channel; 5. Crossbeam; 6. Inclined beam.

Detailed Implementation Methods

[0036] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0037] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0038] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "lateral," and "longitudinal," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] Furthermore, 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" or "second" may explicitly or implicitly include at least one of those features.

[0042] Reference Figures 1 to 5 As shown, this embodiment provides a clamping and fixing photovoltaic module clamping device for fixing photovoltaic modules to photovoltaic brackets to form a photovoltaic system. Figure 1 The illustration shows a partial structure of a common photovoltaic support in the prior art. The photovoltaic support has several longitudinally extending inclined beams 6 and several horizontal beams 5 that are vertically intersecting and fixed above the inclined beams. The photovoltaic module pressing device is installed on the horizontal beams 5 to fix the photovoltaic module on the horizontal beams 5, specifically to fix the photovoltaic module frame 3.

[0043] In this embodiment, the photovoltaic module pressing device includes a pressing block 1 and a tightening bolt 2. The pressing block 1 includes a pressing part 11 that engages with the crossbeam and a pressing part 12 that presses against the photovoltaic module frame 3. The pressing part 11 has an inverted U-shaped structure, including a slot 111 and upright plates 112 located on opposite sides of the slot. Both upright plates are provided with screw holes. The tightening bolt 2 is screwed into the screw holes and tightened against the side wall of the crossbeam.

[0044] Because the locking part adopts an inverted U-shaped structure design, it can fit more closely with the crossbeam and slide along the direction of the crossbeam. The corresponding position can be adjusted as needed, and finally the tightening bolts are used to fix it, so that the pressure block and the crossbeam form a whole, ensuring the reliability of the fixation between them, thereby ensuring the overall stability of the component and the safety of the connection.

[0045] Moreover, there is no need to install it on top of the module; it can be fixed by tightening bolts at the bottom of the photovoltaic module, which improves the convenience of installation and construction efficiency.

[0046] In addition, compared with the existing back-type pressure block fasteners, the photovoltaic module pressure block device is located above the inclined beam because the U-bolts have been eliminated. There is no interference with the inclined beam, which effectively avoids the problem of the fasteners being unable to be installed when there is interference between the inclined beam and the module gap. This effectively solves the problem of pressure block installation and fixation and the reliability of module fixation.

[0047] In some embodiments, a reinforcing boss 113 is provided on the outer side of the upright plate 112 corresponding to the screw hole position. That is, the thickness at the screw hole is increased, thus increasing the depth of the screw hole and the length of the threaded engagement with the tightening bolt, thereby preventing the tightening bolt from loosening and improving the reliability of the clamping block and the crossbeam being tightened and fixed. At the same time, the reinforcing boss also enhances the structural strength of the upright plate.

[0048] In some embodiments, the cross-section of the pressing part 12 is a right-angled trapezoid, with its bottom edge pressed against the photovoltaic module frame. The waist angle is 45°. This ensures a sufficiently large area for the bottom edge to press against the photovoltaic module frame, while also saving material outside the waist area and preventing interference between the waist area and the photovoltaic module frame. The pressing part 12 has a longitudinally penetrating hollow cavity 121. This achieves weight reduction while maintaining the structural strength of the pressing block fastener, saving material and reducing costs. The bottom surface of the pressing part has anti-slip texture 122, increasing the friction between the pressing block and the module frame, improving connection performance, enhancing the pressing effect, and preventing slippage and misalignment.

[0049] Furthermore, the pressure block 1 also includes a bridge portion 13 connecting the engaging portion 11 and the pressure portion 12. The bridge portion 13 includes a bridge surface 131 higher than the engaging portion 11 and the pressure portion 12, and transition slopes 132 extending obliquely from both sides of the bridge surface towards the engaging portion and the pressure portion. The inclination angle of the transition slopes is 45°. In some embodiments, the photovoltaic module frame is pressed against the longitudinal water guide channel 4, that is, the photovoltaic module is fixed while the longitudinal water guide channel 4 is fixed, and the bridge portion 13 spans the side wall of the longitudinal water guide channel. This solves the problem that ordinary back-type pressure block fasteners cannot be installed when there is interference between the module gap and the inclined beam, or when there is conflict between the U-bolt combination and the inclined beam. It can ensure that the pressure portion is pressed against the photovoltaic module frame and avoid interference with the side wall of the longitudinal water guide channel.

[0050] Preferably, the pressure block 1 is a one-piece die-cast structure, made of aluminum alloy or magnesium-aluminum-zinc coated steel. It is a high-strength, corrosion-resistant material, which not only increases service life (up to 25 years) and allows for one-time installation while fulfilling functions throughout the entire lifecycle, but also enhances aesthetics due to its color matching the component frame. Furthermore, compared to traditional back-type pressure blocks, it ensures consistent quality and specifications, and mass production can utilize die stamping, reducing costs.

[0051] In this embodiment, the inclined beam 6 is a rectangular tube, and the crossbeam 5 is a C-shaped structure. Of course, other structures in the prior art can also be used instead.

[0052] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A clamping and fixing photovoltaic module clamping device for fixing photovoltaic modules to a crossbeam, characterized in that, The photovoltaic module pressing device includes a pressing block and a tightening bolt. The pressing block includes a pressing part that engages with the crossbeam and a pressing part that presses against the photovoltaic module frame. The pressing part is an inverted U-shaped structure, including a slot and upright plates on opposite sides of the slot. Both upright plates are provided with screw holes. The tightening bolt is screwed into the screw holes and tightened against the side wall of the crossbeam.

2. The photovoltaic module pressing device according to claim 1, characterized in that, The outer side of the upright plate is provided with a reinforcing boss at the position corresponding to the screw hole.

3. The photovoltaic module pressing device according to claim 1, characterized in that, The cross-section of the pressing part is a right-angled trapezoid, and the bottom edge is pressed onto the frame of the photovoltaic module; and / or, the pressing part is provided with a longitudinally penetrating hollow cavity.

4. The photovoltaic module pressing device according to claim 1, characterized in that, The pressure block also includes a bridge portion that connects the locking portion and the pressure portion.

5. The photovoltaic module pressing device according to claim 4, characterized in that, The bridge section includes a bridge surface higher than the engaging section and the pressing section, and transition slopes extending obliquely from both sides of the bridge surface toward the engaging section and the pressing section; and / or, the bottom surface of the pressing section is provided with anti-slip texture.

6. The photovoltaic module briquetting device according to claim 4, characterized in that, A longitudinal water guide channel is installed on the crossbeam, and the photovoltaic module frame is pressed against the longitudinal water guide channel. The bridge section spans the side wall of the longitudinal water guide channel.

7. The photovoltaic module briquetting device according to claim 1, characterized in that, The pressure block is a one-piece die-cast structure.

8. The photovoltaic module briquetting device according to claim 1, characterized in that, The pressure block is made of aluminum alloy or magnesium-aluminum-zinc coated steel.

9. The photovoltaic module pressing device according to claim 1, characterized in that, A sloping beam is provided below the photovoltaic module pressing device, and the crossbeam is fixed vertically to the sloping beam.

10. A photovoltaic system, comprising a photovoltaic support frame and photovoltaic modules, wherein the photovoltaic support frame is provided with a plurality of longitudinally extending inclined beams and a plurality of horizontal beams perpendicularly intersecting and fixed above the plurality of inclined beams, characterized in that, The crossbeam is equipped with a top-tightening photovoltaic module clamping device as described in any one of claims 1 to 9.

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