Photovoltaic pressing plate device suitable for multiple beam heights and photovoltaic system

Abstract

The utility model discloses a kind of photovoltaic pressing plate devices and photovoltaic systems suitable for multiple beam heights, solve the problem of beam height selection type limit. Among them, photovoltaic pressing plate device includes pressing plate, U-shaped piece, nut bolt and fastening bolt, and two movable holes are provided in the longitudinal direction of pressing plate and are arranged side by side;Two U-shaped pieces are connected with the movable hole on two pressing plates in the edge column, and the bottom edge of two U-shaped pieces is correspondingly pressed on two pressing plates, the edge column end of U-shaped piece is provided with fixed hole, and the fixed hole of the edge column of two U-shaped pieces is aligned;The middle of nut bolt is provided with fixed nut, and both ends are fixed with the fixed hole of the edge column of two U-shaped pieces on both sides;Fastening bolt is connected with fixed nut, and the upper end is tightly contacted with beam, and the lower end is provided with fastening head for driving fastening bolt to rotate, fastening bolt drives nut bolt to move downward when rotating, and U-shaped piece is driven by nut bolt to be pulled down tightly, so that pressing plate is pressed to photovoltaic module frame C side.

Description

Technical Field

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

[0002] With the development of the photovoltaic industry, residential photovoltaic power stations are increasingly being installed in areas affected by severe winds such as typhoons. However, there are instances within the industry where modules are blown away by unusual wind conditions. Therefore, strengthening the connection between the modules and the crossbeams has become crucial. Existing mounting plates have the following problems:

[0003] First, it is easy to detach: due to the limited rigidity of the component frame and the pressure plate, the pressure plate presses down on the component frame, which is prone to deformation in storm conditions, causing the component to slide out of the frame or the pressure plate to deform, resulting in power plant quality problems or even accidents.

[0004] Second, it has high requirements for construction technology and high quality risks: nuts need to be installed in sequence, and when tightening, there is a lack of pressure plate to restrict the tightening, resulting in inconsistent construction quality.

[0005] Third, there are many fixing points: if a single pressure plate corresponds to one U-bolt, then two nuts are required for fixing;

[0006] Fourth, there are strict restrictions on the selection of crossbeam height: the pressure plate is fixed to the crossbeam and the pad is fastened at the other end. The fastening range of the pad is limited by the thread length of the U-bolt. Therefore, the height of the crossbeam is limited by the U-bolt. If the crossbeam is too low or too high, the pressure plate will not be firmly fixed or cannot be installed. Utility Model Content

[0007] To address the shortcomings of existing technologies, the technical problem to be solved by this utility model is to provide a photovoltaic pressure plate device and photovoltaic system applicable to various beam heights, thereby solving the problem of beam height selection limitations in existing pressure plate devices.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] First, a photovoltaic pressure plate device applicable to various beam heights is provided for fixing two adjacent photovoltaic modules onto a beam. The photovoltaic pressure plate device includes:

[0010] Two pressure plates are pressed together on the C-side of the frame of two adjacent photovoltaic modules, and the pressure plates are provided with two movable holes arranged side by side along the longitudinal direction;

[0011] The U-shaped parts have two side posts that are connected to the movable holes on the two pressure plates, and the bottom edges of the two U-shaped parts are pressed onto the two pressure plates. The side posts of the U-shaped parts are provided with fixing holes, and the fixing holes of the side posts of the two U-shaped parts are aligned.

[0012] The bolt with a nut has a fixing nut in the middle, and the two ends of the bolt with a nut are fixed to the fixing holes on the two side columns of the two U-shaped parts.

[0013] The fastening bolt is connected to the fixing nut, and its upper end is pressed against the crossbeam. The lower end is provided with a fastening head that drives the fastening bolt to rotate. When the fastening bolt rotates, it drives the bolt with nut to move down, and the bolt with nut drives the U-shaped part to pull down and tighten, thereby pressing the pressure plate against the C side of the photovoltaic module frame.

[0014] Preferably, the photovoltaic pressure plate device further includes a limiting pad, which is placed on the crossbeam and correspondingly positioned at the junction of two adjacent photovoltaic modules. A positioning structure is provided between the limiting pad, the C-side of the frame of the two adjacent photovoltaic modules, and the two corresponding pressure plates.

[0015] Preferably, the positioning structure includes a limiting protrusion on the limiting pad and a positioning hole on the C-side of the photovoltaic module frame and the pressure plate, wherein the limiting protrusion passes through the positioning hole.

[0016] Preferably, the photovoltaic pressure plate device further includes a limiting top plate, which has a limiting hole. The upper end of the fastening bolt engages with the limiting hole and presses the limiting top plate against the bottom surface of the crossbeam.

[0017] Preferably, the limiting top plate includes a top plate body and a limiting sleeve protruding from the bottom surface of the top plate body, and the limiting sleeve is provided with a limiting hole.

[0018] Preferably, the bottom surface of the pressure plate on the side away from the C-side of the photovoltaic module frame is provided with a support boss, and the support boss is supported on the crossbeam.

[0019] Preferably, the U-shaped component has a fixing plate at the end of the side post, the fixing hole is provided on the fixing plate, and the fixing plate has a joint plane on both longitudinal sides.

[0020] Preferably, the bolt with nut has two screws welded to both sides of the fixing nut, and the two screws pass through the fixing holes of the two side posts of the two U-shaped parts and are connected to the limit nuts.

[0021] Preferably, the fastening bolt is an internal hexagon bolt; and / or, the fixing nut has a regular hexagonal structure.

[0022] In addition, this utility model also provides a photovoltaic system, including the aforementioned photovoltaic pressure plate device.

[0023] The present invention adopts the above technical solution and has the following beneficial effects:

[0024] 1. In the technical solution of this utility model, the U-shaped part is different from the conventional U-bolt. Its length can be appropriately increased and the length is uniform to adapt to beams of different heights.

[0025] Furthermore, to ensure that the U-shaped component can always press the pressure plate tightly after the beam height changes, a bolt with a nut and a fastening bolt are provided. The bolt with a nut has a fixing nut in the middle, and its two ends are fixed to the fixing holes on the two side columns of the U-shaped component. The fastening bolt is connected to the fixing nut, with its upper end pressing against the beam and its lower end having a fastening head that drives the fastening bolt to rotate. Therefore, when the fastening bolt rotates, it can drive the bolt with a nut to move downward, which in turn drives the U-shaped component to pull downward, thereby pressing the pressure plate tightly against the C-side of the photovoltaic module frame.

[0026] In this way, even if the height of the crossbeam changes, the distance between the fixing nut and the bottom surface of the crossbeam changes accordingly by adjusting the fastening bolts. At the same time, the bolt with the nut pulls the U-shaped part downward, so that the pressure plate presses the C side of the photovoltaic module frame. It can still be ensured that the entire photovoltaic pressure plate device is fixed to the crossbeam after the height of the crossbeam changes. The thread length on the U-shaped bolt limits the height of the crossbeam. The pressure plate device of this utility model can adapt to crossbeams of different heights.

[0027] 2. Due to the action of the fastening bolts, the U-shaped component is pulled downwards, thus pressing the pressure plate downwards. However, the U-shaped component exerts a horizontal force on the pressure plate. To prevent the U-shaped component from causing the pressure plate to slide horizontally during the tightening of the fastening bolts, the photovoltaic pressure plate device also includes a limiting pad. The limiting pad is placed on the crossbeam and correspondingly positioned at the junction of two adjacent photovoltaic modules. Furthermore, a positioning structure is provided between the limiting pad, the C-side of the adjacent two photovoltaic module frames, and the corresponding two pressure plates. Due to the positioning structure between the limiting pad, the C-side, and the pressure plates, when two adjacent photovoltaic modules are installed, one limiting pad positions the relative positions of the two adjacent photovoltaic modules. After installation, it restricts the horizontal relative displacement of the limiting pad, the module frame, and the pressure plate, ensuring that the pressure plate and the module frame will not slide relative to each other due to extreme wind force, and ensuring that the pressure plate presses firmly against the module frame.

[0028] Furthermore, the positioning structure includes a limiting protrusion on the limiting pad and positioning holes on the C-side of the photovoltaic module frame and the pressure plate. The limiting protrusion, along with the positioning holes on the module frame and pressure plate, provides positioning. The limiting pad and pressure plate work together to clamp the module frame, increasing the contact area and limiting potential deformation of the thin module frame under stress. This reduces the risk of tearing and prevents fixation point failure. Therefore, the limiting pad facilitates installation positioning, thereby improving installation quality.

[0029] 3. The photovoltaic pressure plate device also includes a limiting top plate, which has a limiting hole. The upper end of the fastening bolt engages with the limiting hole, pressing the limiting top plate against the bottom surface of the crossbeam. In this way, the limiting top plate, supported by the fastening bolt and connected by the U-shaped component, together with the pressure plate and the limiting pad, clamps the crossbeam, ensuring sufficient load-bearing strength.

[0030] 4. The limiting top plate includes a top plate body and a limiting sleeve protruding from the bottom surface of the top plate body. The limiting sleeve is provided with a limiting hole. The top plate body increases the contact area with the crossbeam, and the limiting hole can prevent relative slippage between the top plate body and the crossbeam.

[0031] 5. A supporting boss is provided on the bottom surface of the pressure plate on the side away from the photovoltaic module frame C, and the supporting boss is supported on the crossbeam. In this way, when the U-shaped piece pulls the pressure plate down, the forces exerted by the pressure plate on the photovoltaic module frame C and by the supporting boss on the crossbeam are basically balanced, so that it can be fixed to the crossbeam and pressed tightly against the photovoltaic module frame C.

[0032] 6. To facilitate the alignment of the fixing holes at the ends of the two U-shaped pieces, the ends of the U-shaped pieces are provided with fixing plates, the fixing holes are located on the fixing plates, and the fixing plates have mating planes on both longitudinal sides. Moreover, the fixing plates of the two U-shaped pieces can be staggered on one side longitudinally to facilitate connection with the ends with nuts and bolts.

[0033] 7. The bolt with nut has two screws welded to both sides of the fixing nut. The two screws pass through the fixing holes of the two side posts of the two U-shaped parts and are connected to the limit nuts. Therefore, the fastening procedure is optimized. Originally, four nuts were required to tighten. Now, only the fastening bolt and the limit nuts at both ends of the bolt with nut need to be tightened. Without increasing the cost, it is optimized to fix with three nuts. The number of tightening times is reduced from four to three, which improves efficiency.

[0034] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0035] The utility model will be further described below with reference to the accompanying drawings:

[0036] Figure 1 This is a structural schematic diagram of a photovoltaic pressure plate device applicable to various beam heights according to this utility model;

[0037] Figure 2 This is a structural schematic diagram of a photovoltaic pressure plate device applicable to various beam heights according to this utility model;

[0038] Figure 3 This is a structural schematic diagram of a photovoltaic pressure plate device applicable to various beam heights according to this utility model;

[0039] Figure 4 This is a magnified structural diagram of point A in section 3;

[0040] Figure 5 This is a schematic diagram of the component frame structure in this utility model;

[0041] Figure 6 This is a schematic diagram of the crossbeam structure in this utility model;

[0042] Figure 7 This is a schematic diagram of the U-shaped component in this utility model;

[0043] Figure 8 This is a schematic diagram of the limiting pad in this utility model;

[0044] Figure 9 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0045] Figure 10 This is a schematic diagram of the structure of the bolt with nut in this utility model;

[0046] Figure 11 This is a schematic diagram of the limiting top plate in this utility model;

[0047] Figure 12 This is a schematic diagram of the structure of the limiting nut in this utility model;

[0048] Figure 13 This is a schematic diagram of the fastening bolt in this utility model;

[0049] Reference numerals: Frame 1, C-side 11, First positioning hole 111, Crossbeam 2, U-shaped part 3, Bottom edge 31, Side post 32, Fixing plate 33, Fixing hole 34, Limiting pad 4, Limiting protrusion 41, Pressure plate 5, Movable hole 51, Second positioning hole 52, Supporting boss 53, Bolt with nut 6, Fixing nut 61, Screw 62, Limiting nut 63, Limiting top plate 7, Top plate body 71, Limiting sleeve 72, Limiting hole 73, Fastening bolt 9, Fastening head 91. Detailed Implementation

[0050] 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.

[0051] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0052] 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," "horizontal," and "vertical" that 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.

[0053] 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.

[0054] 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.

[0055] Referring to existing technologies and combining Figure 1 and Figure 5 As shown, the frame structure of a common photovoltaic module is explained. The photovoltaic module is rectangular, with a rectangular frame 1 around its perimeter. The bottom of the frame has a C-shaped side 11 extending horizontally inward. Furthermore, in a photovoltaic system, from an economic perspective, several photovoltaic modules are usually arranged in a rectangular array to increase the power generation area. This utility model is also described in the case of a photovoltaic array. A photovoltaic support is provided below the photovoltaic array for installing the photovoltaic modules. The photovoltaic support includes longitudinal beams and horizontal beams 2 that are vertically intersecting and fixed to the longitudinal beams. The longitudinal beams are arranged diagonally along the longitudinal direction and are also called inclined beams. Two adjacent photovoltaic modules are fixed side by side on the horizontal beams 2.

[0056] Because the height of the crossbeam may vary, the fixed U-bolts have limitations on the height of the crossbeam. If the crossbeam is too low or too high, the pressure plate will not be securely fixed or cannot be installed. Existing technology has requirements for the selection of U-bolts, which poses a challenge to the standardization of components.

[0057] To ensure component uniformity and adapt to variations in beam height, refer to... Figures 1 to 13As shown, this embodiment provides a photovoltaic pressure plate device applicable to various beam heights, used to fix two adjacent photovoltaic modules on a beam, solving the problem of beam height selection limitations in existing pressure plate devices.

[0058] The photovoltaic pressure plate device includes:

[0059] Two pressure plates 5 are pressed together on the C-side 11 of the frame of two adjacent photovoltaic modules. The pressure plates 5 are provided with two movable holes 51 arranged side by side along the longitudinal direction.

[0060] The U-shaped component 3 has two side posts 32 connected to the movable holes 51 on the two pressure plates, and the bottom edges 31 of the two U-shaped components are pressed onto the two pressure plates 5. The side posts of the U-shaped component are provided with fixing holes 34, and the fixing holes 34 of the side posts 32 of the two U-shaped components are aligned.

[0061] The bolt with nut 6 has a fixing nut 61 in the middle and screws 62 on both sides. The screws 62 are connected to limit nuts 63. The screws 62 on both sides of the bolt with nut are fixed to the fixing holes 34 on the side posts of the two U-shaped parts. That is, the fixing holes 34 of the side posts of the two U-shaped parts located on the same longitudinal side are aligned. The screws 62 of the bolt with nut pass through the fixing holes 34 and are connected by the limit nuts 63.

[0062] The fastening bolt 9 is connected to the fixing nut 61, and its upper end is pressed against the crossbeam 2. The lower end is provided with a fastening head 91 that drives the fastening bolt 9 to rotate. When the fastening bolt 9 rotates, it drives the bolt with nut 6 to move down, and the bolt with nut 6 drives the U-shaped part 3 to pull down and tighten, so that the pressure plate 5 presses the photovoltaic module frame C side 11.

[0063] In the technical solution of this embodiment, the U-shaped component is different from the conventional U-bolt. Its length can be appropriately increased and standardized to adapt to beams of different heights.

[0064] Furthermore, to ensure that the U-shaped component can always press the pressure plate tightly after the beam height changes, a bolt with a nut and a fastening bolt are added. The bolt with a nut has a fixing nut in the middle, and its two ends are fixed to the fixing holes on the two side columns of the U-shaped component. The fastening bolt is connected to the fixing nut, with its upper end pressing against the beam and its lower end having a fastening head that drives the fastening bolt to rotate. Therefore, when the fastening bolt rotates, it can drive the bolt with a nut to move downward, which in turn drives the U-shaped component to pull downward, thereby pressing the pressure plate tightly against the C-side of the photovoltaic module frame.

[0065] In this way, even if the height of the crossbeam changes, the distance between the fixing nut and the bottom surface of the crossbeam changes accordingly by adjusting the fastening bolts. At the same time, the bolt with the nut pulls the U-shaped part downward, so that the pressure plate presses the C side of the photovoltaic module frame. It can still be ensured that the entire photovoltaic pressure plate device is fixed to the crossbeam after the height of the crossbeam changes. The thread length on the U-shaped bolt limits the height of the crossbeam. The pressure plate device of this utility model can adapt to crossbeams of different heights.

[0066] In addition, the fastening procedure has been optimized. What used to require four nuts now only requires tightening one fastening bolt and the limit nuts at both ends of the bolt with nuts. Without increasing costs, it has been optimized to fix with three nuts, and the number of tightening times has been reduced from four to three, thus improving efficiency.

[0067] Due to the action of the fastening bolts, the U-shaped component is pulled downwards, thus pressing the pressure plate downwards. However, the U-shaped component exerts a horizontal force on the pressure plate. To prevent the U-shaped component from causing the pressure plate to slide horizontally during the tightening of the fastening bolts, in some embodiments, the photovoltaic pressure plate device further includes a limiting pad 4. The limiting pad 4 is placed on the crossbeam and correspondingly positioned at the junction of two adjacent photovoltaic modules. A positioning structure is provided between the limiting pad 4 and the adjacent photovoltaic module frame C-side 11 and the corresponding two pressure plates 5. Specifically, the positioning structure includes a limiting protrusion 41 on the limiting pad and positioning holes on the photovoltaic module frame C-side and the pressure plate, namely a first positioning hole 111 on the photovoltaic module frame C-side and a second positioning hole 52 on the pressure plate. The limiting protrusion 41 passes through the positioning hole. The limiting protrusion 41 can be a cylinder, and correspondingly, the first positioning hole 111 and the second positioning hole 52 are circular holes. Due to the positioning structure between the limiting pad, the C-side, and the pressure plate, when installing two adjacent photovoltaic modules, one limiting pad positions the relative positions of the two adjacent photovoltaic modules. Furthermore, after installation, it restricts the horizontal relative displacement of the limiting pad, module frame, and pressure plate, ensuring that the pressure plate and module frame will not slide relative to each other due to strong winds, and ensuring that the pressure plate firmly presses against the module frame. Further, the positioning of the limiting protrusions with the positioning holes on the module frame and pressure plate, and the cooperation between the limiting pad and pressure plate to clamp the module frame and increase the contact area, limit the potential deformation of thinner module frames under stress, reduce the risk of module frame tearing, and prevent fixing point failure. Therefore, the limiting pad provides convenience for installation positioning, thereby improving installation quality.

[0068] Furthermore, the edge of the pressure plate is close to the outer edge of side C, i.e., close to side B. This increases the interlocking area between the pressure plate and the component frame, thereby increasing the load-bearing strength.

[0069] In some embodiments, the photovoltaic pressure plate device further includes a limiting top plate 7, which has a limiting hole 73. The upper end of the fastening bolt engages with the limiting hole 73, pressing the limiting top plate 7 against the bottom surface of the crossbeam. Thus, the limiting top plate 7, supported by the fastening bolt 9 and connected by the U-shaped member 3, together with the pressure plate 5 and the limiting pad 4, clamps the crossbeam 2, ensuring sufficient load-bearing strength. Specifically, the limiting top plate 7 includes a top plate body 71 and a limiting sleeve 72 protruding from the bottom surface of the top plate body, with a limiting hole 73 inside the limiting sleeve. The top plate body can be circular, and the limiting hole is a circular hole that engages with the upper end of the fastening bolt. The top plate body increases the contact area with the crossbeam, and the limiting hole prevents relative slippage between the top plate body and the crossbeam.

[0070] Furthermore, the bottom surface of the pressure plate 5, away from the photovoltaic module frame C, is provided with a supporting boss 53, which is supported on the crossbeam 2. A movable hole is located between the supporting boss and the second positioning hole, allowing the U-shaped component to be offset from the inner edge of the photovoltaic module frame C to avoid interference. When the U-shaped component pulls the pressure plate downwards, the forces acting on the photovoltaic module frame C by the pressure plate and on the crossbeam by the supporting boss are essentially balanced, thus ensuring both fixation to the crossbeam and compression of the photovoltaic module frame C.

[0071] To facilitate the alignment of the fixing holes at the ends of the two U-shaped pieces, the ends of the U-shaped pieces are provided with fixing plates 33, and fixing holes 34 are provided on the fixing plates 33. The fixing plates 33 have joint planes on both longitudinal sides. The fixing plates are rectangular in structure and relatively thin, approximately half the diameter of the side post. One of the side posts of the two U-shaped pieces is located on the first longitudinal side, and the other on the second longitudinal side. Thus, although the side posts of the two U-shaped pieces are aligned laterally, the fixing plates 33 of the two U-shaped pieces can be staggered longitudinally to facilitate connection with the ends with nuts and bolts.

[0072] Specifically, the bolt with nut 6 has two screws 62 welded to both sides of the fixing nut 61. The overall length of the bolt with nut 6 is greater than the distance between the two side posts of the U-shaped part 3, so that the ends of both screws 62 can pass through the fixing hole 34. A limiting nut 63 can be connected to the outside of the fixing hole. Of course, after the limiting nut is tightened, the length of the screw end protruding from the limiting nut should not be too long.

[0073] Preferably, the fastening bolt 9 is an internal hex bolt, that is, the fastening head 91 is provided with an internal hex hole to facilitate tightening the fastening bolt from below with an internal hex wrench. The fixing nut 61 has a regular hexagonal structure.

[0074] Based on the above description, the installation process of the photovoltaic pressure plate device in this embodiment is described as follows:

[0075] Step 1: Pre-set the position of the crossbeam 2 and install it, with the crossbeam 2 exactly at the position of the reserved hole in the component frame 1;

[0076] Step 2: Place two adjacent photovoltaic modules on the crossbeam 2 respectively, and pre-place the limiting pad 4, wherein the limiting protrusion 41 of the limiting pad 4 passes through the first positioning hole 111 reserved on the module frame.

[0077] Step 3: Pass the two U-shaped pieces 3 with their openings facing down through the pre-drilled movable holes 51 on the pressure plate 5;

[0078] Step 4: Place the two U-shaped pieces 3 with pressure plates 5 facing downwards onto the crossbeam, with the second positioning hole 52 on the pressure plate 5 aligned with the limiting protrusion 41 of the limiting pad 5 and snap it down. At this point, the pressure plate 5 has been initially connected to the component frame 1.

[0079] Step 5: Align the fixing plates 33 on both sides of the two U-shaped parts 3 with the fixing holes 34, pass the screws 62 on both sides of the bolts with nuts 6 through the fixing holes 34, and fix them with the limit nuts 63, so that the fixing nuts 61 with nuts are facing the upper crossbeam.

[0080] Step 6: Using the fastening bolt 9, pass it upward through the fixing nut 61 of the bolt with nut 6. When it is about to reach the bottom of the crossbeam 2, fasten the limiting hole 73 of the limiting top plate 7 onto the top of the fastening bolt 9.

[0081] Step 7: Tighten bolt 9 to complete the installation;

[0082] Due to the action of the fastening bolt 9, the U-shaped part 3 is pulled downward, thereby pressing the pressure plate 5 downward and clamping it with the limiting pad 4 to hold the component frame 1 in place. At the same time, the mechanical interlocking action between the limiting pad 4 and the pressure plate 5 restricts the horizontal relative displacement between the component frame 1 and the pressure plate 5.

[0083] 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 photovoltaic pressure plate device applicable to various beam heights, used to fix two adjacent photovoltaic modules onto a beam, characterized in that, The photovoltaic pressure plate device includes: Two pressure plates are pressed together on the C-side of the frame of two adjacent photovoltaic modules, and the pressure plates are provided with two movable holes arranged side by side along the longitudinal direction; The U-shaped parts have two side posts that are connected to the movable holes on the two pressure plates, and the bottom edges of the two U-shaped parts are pressed onto the two pressure plates. The side posts of the U-shaped parts are provided with fixing holes, and the fixing holes of the side posts of the two U-shaped parts are aligned. The bolt with a nut has a fixing nut in the middle, and the two ends of the bolt with a nut are fixed to the fixing holes on the two side columns of the two U-shaped parts. The fastening bolt is connected to the fixing nut, and its upper end is pressed against the crossbeam. The lower end is provided with a fastening head that drives the fastening bolt to rotate. When the fastening bolt rotates, it drives the bolt with nut to move down, and the bolt with nut drives the U-shaped part to pull down and tighten, thereby pressing the pressure plate against the C side of the photovoltaic module frame.

2. The photovoltaic pressure plate device applicable to various beam heights according to claim 1, characterized in that, The photovoltaic pressure plate device also includes a limiting pad, which is placed on the crossbeam and correspondingly positioned at the junction of two adjacent photovoltaic modules. A positioning structure is provided between the limiting pad, the C-side of the frame of the two adjacent photovoltaic modules, and the two corresponding pressure plates.

3. A photovoltaic pressure plate device applicable to various beam heights according to claim 2, characterized in that, The positioning structure includes a limiting protrusion on the limiting pad and a positioning hole on the C-side of the photovoltaic module frame and the pressure plate, with the limiting protrusion passing through the positioning hole.

4. A photovoltaic pressure plate device applicable to multiple beam heights according to claim 1, characterized in that, The photovoltaic pressure plate device also includes a limiting top plate with a limiting hole. The upper end of the fastening bolt engages with the limiting hole and presses the limiting top plate against the bottom surface of the crossbeam.

5. A photovoltaic pressure plate device applicable to various beam heights according to claim 4, characterized in that, The limiting top plate includes a top plate body and a limiting sleeve protruding from the bottom surface of the top plate body, and the limiting sleeve is provided with a limiting hole.

6. A photovoltaic pressure plate device applicable to multiple beam heights according to claim 1, characterized in that, The pressure plate has a support boss on the bottom surface of the side away from the C-side of the photovoltaic module frame, and the support boss is supported on the crossbeam.

7. A photovoltaic pressure plate device applicable to multiple beam heights according to claim 1, characterized in that, The U-shaped component has a fixing plate at the end of the side post, the fixing hole is provided on the fixing plate, and the fixing plate has a joint plane on both longitudinal sides.

8. A photovoltaic pressure plate device applicable to multiple beam heights according to claim 1, characterized in that, The bolt with nuts has two screws welded to both sides of the fixing nut. The two screws pass through the fixing holes of the two side posts of the two U-shaped parts and are connected to the limit nuts.

9. A photovoltaic pressure plate device applicable to multiple beam heights according to claim 1, characterized in that, The fastening bolt is an internal hexagon bolt; and / or, the fixing nut is a regular hexagonal structure.

10. A photovoltaic system, characterized in that, Includes the photovoltaic pressure plate device according to any one of claims 1 to 9.

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