Snow barrier device for photovoltaic panels

Abstract

This utility model relates to the field of photovoltaic module technology, and in particular to a snow-blocking device for photovoltaic panels. A snow-blocking device for photovoltaic panels includes a snow-blocking net and connecting components. The snow-blocking net includes a support frame, a snow-blocking net body, and multiple separators. The support frame has an upper mounting area and a lower mounting area. The snow-blocking net body is vertically fixed to the upper mounting area. The multiple separators are spaced apart along a first direction and vertically fixed to the lower mounting area. Connecting components are provided on both sides of the support frame along the first direction. The connecting components include a first pressure seat, a second pressure seat, and threaded fasteners. The bottom of the support frame is connected to the first pressure seat. The first pressure seat is adapted to press on the upper surface of two adjacent photovoltaic panels, and the second pressure seat is adapted to press on the lower surface of two adjacent photovoltaic panels. The threaded fasteners can connect the first pressure seat and the second pressure seat, so that the first pressure seat and the second pressure seat clamp the two adjacent photovoltaic panels. The first direction is the width direction of the photovoltaic panel.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module technology, and in particular to a snow-blocking device for photovoltaic panels. Background Technology

[0002] To meet the power generation needs of solar photovoltaic panels, these panels are installed at an angle to maximize their exposure to sunlight. In some areas, heavy snowfall can cause a thick layer of snow to accumulate on the panels. As the heat generated by the solar panels melts the snow, the accumulated snow can slide off the panels along their angle. Since solar panels are often installed on rooftops, large amounts of snow falling from a height can easily cause personal injury and property damage. Therefore, snow-blocking devices are necessary to prevent snow from sliding down.

[0003] In existing technologies, snow-blocking devices are typically installed on the lower side of solar photovoltaic panels, i.e., the side closest to the eaves. These devices include a snow net and a snow-blocking bracket. The bracket is fixed to the main beam of the roof, and the snow net is vertically mounted on the bracket. When snow accumulates on the solar panels and slides down the photovoltaic panels, the snow net vertically blocks the snow, preventing it from sliding down.

[0004] However, when the aforementioned snow-blocking device is installed on the roof, the roof tiles need to be removed so that the bottom end of the snow-blocking bracket can pass through the roof and be fixedly connected to the main beam of the roof. This will damage the roof structure and make the roof prone to leakage. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: to address the issue that existing snow-blocking devices, when installed on roofs, can damage the roof structure and cause the roof to leak easily, and to provide a snow-blocking device for photovoltaic panels.

[0006] To address the aforementioned issues, this utility model provides a snow-blocking device for photovoltaic panels, suitable for installation on the lower end of an inclined photovoltaic panel. The device includes a snow-blocking net and connecting components. The snow-blocking net comprises a support frame, a snow-blocking net body, and multiple partitions. The support frame has an upper mounting area and a lower mounting area located below the upper mounting area. The snow-blocking net body is arranged along a first direction and vertically fixed in the upper mounting area. The multiple partitions are spaced apart along the first direction and vertically fixed in the lower mounting area. The bracket is provided with connecting components on both sides along the first direction. The connecting components are adapted to be installed at intervals between two adjacent photovoltaic panels. The connecting components include a first pressure seat, a second pressure seat, and a threaded fastener. The bottom of the bracket is connected to the first pressure seat. The first pressure seat is adapted to press on the upper surface of two adjacent photovoltaic panels, and the second pressure seat is adapted to press on the lower surface of two adjacent photovoltaic panels. The threaded fastener can connect the first pressure seat and the second pressure seat so that the first pressure seat and the second pressure seat clamp the two adjacent photovoltaic panels. The first direction is the width direction of the photovoltaic panel.

[0007] Optionally, the threaded fastener is a screw, the first pressure seat has a through hole extending in the second direction, the second pressure seat has an internal threaded hole extending in the second direction, and the shank of the screw can pass through the through hole and be threadedly connected to the internal threaded hole; tightening the second pressure seat, the first pressure seat and the second pressure seat clamp two adjacent photovoltaic panels in the second direction; wherein, the second direction is the thickness direction of the photovoltaic panel.

[0008] Optionally, the first pressure base includes a pressure plate, a connecting plate, and an extension plate. The pressure plate has the through hole and is used to press on the upper surfaces of two adjacent photovoltaic panels. The extension plate extends along a third direction, and the connecting plate extends along a second direction. One end of the extension plate is connected to one side of the pressure plate through the connecting plate, and the other end of the extension plate is adapted to extend out of the lower end of the photovoltaic panel and connect to the bottom of the bracket. The third direction is the length direction of the photovoltaic panel.

[0009] Optionally, the distance S1 by which the other end of the extension plate extends beyond the lower end of the photovoltaic panel is 20~40cm.

[0010] Optionally, the first pressure seat and the bracket are integrally formed.

[0011] Optionally, the bottom surface of the separator is coplanar with the upper surface of the photovoltaic panel, and the height H of the separator is 4~8cm.

[0012] Optionally, the distance S2 between adjacent sides of the separator and the adjacent target component in the first direction is 1~2.2m; wherein, the target component is the separator, the first vertical rod, or the second vertical rod.

[0013] Optionally, the bracket includes a first transverse rod, a second transverse rod, a first vertical rod, and a second vertical rod, wherein the first transverse rod and the second transverse rod extend along a first direction, and the first vertical rod and the second vertical rod extend along a second direction, and the first transverse rod and the second transverse rod connect the first vertical rod and the second vertical rod; The area between the first horizontal bar, the first vertical bar, the second vertical bar, and the second horizontal bar is the upper mounting area; the area between the first vertical bar and the second vertical bar, below the second horizontal bar, is the lower mounting area; the tops of the plurality of partitions are fixed to the second horizontal bar. The second horizontal bar and the separator are flat bars, with the narrow side of the flat bar facing the front of the snow net.

[0014] Optionally, the snow-blocking net body includes multiple snow-blocking rods, which are arranged crosswise along the first direction and connected to the bracket to form multiple snow-falling holes that pass through a third direction; wherein, the third direction is the length direction of the photovoltaic panel.

[0015] Optionally, the snow barrier is a flat bar, with the narrow side of the snow barrier facing the front of the snow net.

[0016] This utility model provides a snow-blocking device for photovoltaic panels. The snow-blocking net can stratify the snow sliding down the photovoltaic panel into a top layer and a bottom layer. Multiple spaced dividers cut the large bottom layer snow into smaller pieces, and the space between adjacent dividers allows these smaller pieces to slide down. The snow-blocking net itself prevents the top layer snow from sliding down and endangering people and objects below. After the bottom layer snow slides down, the top layer snow lands on the surface of the photovoltaic panel and is further cut into smaller pieces by the dividers as it slides down. This snow-blocking device for photovoltaic panels effectively blocks snow while simultaneously cutting it into smaller pieces, reducing the risk of injury to people and objects below. Meanwhile, when snow slides down, the impact on the snow-blocking device is relatively small, thus reducing the connection strength requirements of the snow-blocking device at the installation position of the bracket. Therefore, in this utility model, each side of the bracket clamps two adjacent photovoltaic panels through the first and second pressure seats of the connecting components to fix the snow-blocking device to the photovoltaic panels, which can meet the connection strength requirements. It does not need to be fixedly connected to the main beam inside the roof, avoiding the need to fix the bracket to the main beam of the roof by removing the roof tiles, reducing the difficulty of installation, and avoiding damage to the roof that could easily lead to water leakage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the structure of a snow-blocking device for photovoltaic panels provided in one embodiment of the present invention; Figure 2 for Figure 1 A diagram showing the snow-blocking device installed on the lower side of the photovoltaic panels on the roof. Figure 3 for Figure 2 A partial side view; Figure 4 for Figure 2 A cross-sectional view of the connection points between the connecting components and the two adjacent photovoltaic panels.

[0019] The reference numerals in the accompanying drawings are as follows: 100. Snow netting; 200. Connecting components; 300. Photovoltaic panels; 400. Crossbeams; 500. Roofing; 1. Bracket; 11. Upper mounting area; 12. Lower mounting area; 13. First horizontal bar; 14. Second horizontal bar; 15. First vertical bar; 16. Second vertical bar; 2. Snow net body; 21. Snow bar; 22. Snowfall hole; 3. Divider; 4. First pressure seat; 41. Perforation; 42. Pressure plate; 43. Connecting plate; 44. Extension plate; 5. Second pressure seat; 51. Internal threaded hole; 6. Threaded fastener. Detailed Implementation

[0020] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Existing photovoltaic (PV) panels are installed at an angle relative to the ground plane on roofs or other fixed structures to facilitate solar radiation. When PV panels are installed on roofs, they are typically fixed to beams on the roof surface. Multiple PV panels are fixed to the beams at intervals along their length. Each PV panel has a high end and a low end that are opposite each other along its length, with the low end being closer to the eaves than the high end.

[0022] The smooth surface of photovoltaic (PV) panels results in less friction between snow and the panels compared to traditional roof surfaces. Furthermore, the heat generated by PV panels during the day accelerates snow melting, making it easier for snow to slide off the roof. Large amounts of snow sliding off the roof pose a risk of injuring people and damaging property. To address this risk, current technology involves installing snow-blocking devices on the lower side of the PV panels. These devices typically consist of a snow net and mounting brackets. The snow net is fixed to the roof, facing the lower side of the PV panel. When snow slides off the PV panel surface along the slope, the snow net blocks the entire mass of snow, with the snow pressing against both the net and the panel surface. This necessitates a high level of structural strength in the connection between the snow-blocking device and the roof.

[0023] Therefore, existing snow-blocking devices are usually installed on the main beam inside the roof, requiring the roof tiles to be removed to pass the bottom of the snow-blocking bracket through the roof surface and fix it to the roof's sloping beams. This damages the roof structure and makes the roof prone to leaks. Moreover, snow accumulates on the surface of the photovoltaic panels as snowfall continues, increasing the load on the photovoltaic panels and the roof, and causing certain damage to both.

[0024] To address the aforementioned problems, one embodiment of this utility model provides a snow-blocking device for photovoltaic panels, suitable for installation on the lower end side of an inclined photovoltaic panel 300.

[0025] like Figure 1 and Figure 2 As shown, the snow-blocking device for photovoltaic panels (hereinafter referred to as the snow-blocking device) includes a connecting component 200 and a snow-blocking net 100. The snow-blocking net 100 includes a support 1, a snow-blocking net body 2, and multiple partitions 3. The support 1 has an upper mounting area 11 and a lower mounting area 12 located below the upper mounting area 11. The snow-blocking net body 2 is arranged along a first direction and vertically fixed in the upper mounting area 11. The multiple partitions 3 are spaced apart along the first direction and vertically fixed in the lower mounting area 12.

[0026] The bracket 1 has connecting components 200 on both sides along the first direction. The connecting components 200 are adapted to be installed at intervals between two adjacent photovoltaic panels 300. Each connecting component 200 includes a first pressure seat 4, a second pressure seat 5, and a threaded fastener 6. The bottom of the bracket 1 is connected to the first pressure seat 4. The first pressure seat 4 is adapted to press against the upper surface of the two adjacent photovoltaic panels 300, and the second pressure seat 5 is adapted to press against the lower surface of the two adjacent photovoltaic panels 300. The threaded fastener 6 connects the first pressure seat 4 and the second pressure seat 5, so that the first pressure seat 4 and the second pressure seat 5 clamp the two adjacent photovoltaic panels 300. The first direction refers to the width direction of the photovoltaic panels 300. Figure 2 D1 in the diagram represents the first direction.

[0027] Specifically, such as Figures 2 to 4As shown, the support 1 of the snow net 100 has a first pressure plate 42 connected to the bottom of both sides of the support 1 along the first direction. When the snow blocking device is installed on the low end of a photovoltaic panel 300 on the roof 500, the snow net 100 is positioned directly opposite the low end of the photovoltaic panel 300. The first pressure plates 42 on both sides of the support 1 are located on both sides of the width direction of the photovoltaic panel 300. The first pressure plate 42 on each side presses on the upper surface of the photovoltaic panel 300 and the adjacent photovoltaic panel 300. Second pressure plates 42 are installed on both sides of the width direction of the photovoltaic panel 300. The second pressure plate 42 on each side presses on the lower surface of the photovoltaic panel 300 and the adjacent photovoltaic panel 300 in the thickness direction. Finally, the threaded fastener 6 connects the first pressure plate 42 and the corresponding second pressure plate 42 so that the first pressure plate 42 and the second pressure plate 42 of the connecting assembly 200 on each side clamp the photovoltaic panel 300 and the adjacent photovoltaic panel 300, thereby fixing the snow blocking device on the photovoltaic panel 300.

[0028] Understandably, when the photovoltaic panel 300 generates heat under sunlight during the day, the bottom layer of snow in contact with the surface of the photovoltaic panel 300 melts first. Therefore, the bottom layer of snow will slide down along the tilt direction of the photovoltaic panel 300 first.

[0029] A snow-blocking net body 2 is fixed in the upper installation area 11 of the bracket 1, and multiple partitions 3 spaced apart along a first direction are fixed in the lower installation area 12 of the bracket 1. When snow on the photovoltaic panel 300 slides down in the inclined direction and the snow thickness is greater than the height of the lower installation area 12, the snow-blocking net 100 can divide the snow into upper and lower layers, creating a top layer of snow and a bottom layer of snow. The spaced partitions 3 cut the large bottom layer of snow into multiple smaller snow chunks. The space between two adjacent partitions 3 allows the smaller snow chunks to slide down. When passing over the eaves, they are further broken into even smaller snow chunks due to gravity and other factors. The smaller snow chunks have relatively less kinetic energy when falling, reducing the risk of harm to people and objects below the eaves. The snow-blocking net body 2 can block the top layer of snow, preventing it from sliding down directly and harming people and objects below. After the bottom layer of snow slides off, the top layer of snow falls onto the surface of the photovoltaic panel 300, where it is then cut into smaller pieces by the divider 3 as it slides off, reducing the risk to people and objects under the eaves.

[0030] This snow-blocking device effectively cuts up snow while blocking it, allowing it to slide off in small chunks, reducing damage to people and objects below. Furthermore, the snow net 100 allows snow to slide off the surface of the photovoltaic panel 300, reducing the load on the photovoltaic panel 300 and the roof, preventing prolonged snow accumulation and minimizing damage to the photovoltaic panel 300 and the roof. Moreover, the impact force of the sliding snow on the snow-blocking device is relatively small, thus reducing the connection strength requirements of the bracket 1 at its installation location.

[0031] Therefore, in this utility model, each side of the bracket 1 clamps the upper and lower sides of two adjacent photovoltaic panels 300 through the first pressure seat 4 and the second pressure seat 5 of the connecting component 200, so as to fix the snow blocking device on the photovoltaic panel 300. This can meet the connection strength requirements of the snow blocking device for the installation position of the bracket 1, without the need for fixed connection with the main beam inside the roof. This avoids fixing the bracket 1 to the main beam of the roof by removing the roof tiles 500, reducing the difficulty of installation and avoiding damage to the roof that could lead to water leakage.

[0032] In one embodiment, such as Figure 3 and Figure 4 As shown, the threaded fastener 6 is a screw. The first pressure seat 4 is provided with a through hole 41 extending in the second direction, and the second pressure seat 5 is provided with an internal threaded hole 51 extending in the second direction. The shank of the screw can pass through the through hole 41 and be threadedly connected to the internal threaded hole. When the second pressure seat 5 is tightened, the first pressure seat 4 and the second pressure seat 5 clamp two adjacent photovoltaic panels 300 in the second direction. The second direction is the thickness direction of the photovoltaic panel 300. Figure 3 In this context, D2 represents the second direction.

[0033] The second pressure seat 5 is equivalent to a nut connected to the screw, thus eliminating the need for an additional nut to be fastened to the screw, reducing the number of parts and lowering costs.

[0034] In other embodiments, the threaded fastener 6 may include a nut and a screw. In this case, a first through hole extending in the second direction may be provided on the first pressure seat 4, and a second through hole extending in the second direction may be provided on the second pressure seat 5. The shank of the screw passes through the first through hole and the second through hole in sequence and is fastened by the nut, so that the first pressure seat 4 and the second pressure seat 5 clamp two adjacent photovoltaic panels 300 in the second direction.

[0035] In one embodiment, such as Figures 2 to 4 As shown, the first pressure seat 4 includes a pressure plate 42, a connecting plate 43, and an extension plate 44. The pressure plate 42 is provided with a through hole 41 and is used to press on the upper surface of two adjacent photovoltaic panels 300. The extension plate 44 extends along a third direction, and the connecting plate 43 extends along a second direction. One end of the extension plate 44 is connected to one side of the pressure plate 42 through the connecting plate 43, and the other end of the extension plate 44 is adapted to extend out of the lower end of the photovoltaic panel 300 and be connected to the bottom of the bracket 1. The third direction is the length direction of the photovoltaic panel 300. Figure 3 In this context, D3 represents a third party.

[0036] Since the other end of the extension plate 44 extends out of the low end of the photovoltaic panel 300, when the snow-blocking device is installed on the low end of the photovoltaic panel 300, the bracket 1 connected to the other end of the extension plate 44 is a certain distance away from the low end of the photovoltaic panel 300, so that when large snow on the surface of the photovoltaic panel 300 slides onto the snow-blocking net 100, it has a certain kinetic energy, which makes it easier for the separator 3 to cut the large snow.

[0037] In one embodiment, such as Figure 2 and Figure 3 As shown, multiple photovoltaic panels 300 are fixed to the roof 500 by crossbeams 400. The crossbeams 400 extend along the width of the photovoltaic panels 300. The frame of the photovoltaic panels 300 is fixedly connected to the crossbeams 400 by bolts, and the head of the bolts presses on the upper surface of the frame of the photovoltaic panels 300.

[0038] The pressure plate 42 is further away from the lower end of the photovoltaic panel 300 relative to the crossbeam 400. Correspondingly, the extension plate 44 is provided with a downward-facing clearance notch. The clearance notch is used to avoid the head of the bolt connecting the photovoltaic panel 300 and the crossbeam 400, so that the pressure plate 42 can be installed on the side of the crossbeam 400 away from the lower end of the photovoltaic panel 300.

[0039] If the snow accumulation on the surface of the photovoltaic panel 300 is too heavy, it will press the snow-blocking device to move towards the side closer to the eaves. The head of the bolt connecting the photovoltaic panel 300 and the crossbeam 400 can block the pressure plate 42 to prevent the snow-blocking device from sliding towards the side closer to the eaves, thereby improving the safety of the snow-blocking device.

[0040] In other embodiments, the second pressure seat 5 may consist only of a pressure plate 42, in which case the pressure plate 42 presses against the frame of the lower end of the photovoltaic panel 300, and the snow net 100 is close to the lower end of the photovoltaic panel 300.

[0041] In other embodiments, the structures of the first pressure seat 4 and the second pressure seat 5 can be interchanged.

[0042] In other embodiments, an internal threaded hole 51 can be provided on the first pressure seat 4, and a through hole 41 can be provided on the second pressure seat 5. The shank of the screw passes through the through hole 41 and connects with the internal threaded hole 51. The first pressure seat 4 is fixed to the bottom of the bracket 1. The screw is screwed so that the first pressure plate 42 and the second pressure plate 42 approach each other and press the two adjacent photovoltaic panels 300 together.

[0043] In one embodiment, the first pressure seat 4 is integrally formed with the bracket 1, which simplifies the installation steps and facilitates installation.

[0044] In one embodiment, the second pressure seat 5 is a block structure with a hexagonal cross-sectional shape. The operator can clamp and screw the second pressure seat 5 with tools, which facilitates operation.

[0045] In one embodiment, the other end of the extension plate 44 extends 20-40 cm from the lower end of the photovoltaic panel 300 by a distance S1.

[0046] When S1 is too small (less than 20cm), the distance between the low end of the photovoltaic panel 300 and the snow net 100 is too close. The kinetic energy of the snow when it slides onto the snow net 100 is small, which is not conducive to the separator 3 cutting the snow, causing the snow to easily accumulate at the snow net 100.

[0047] When S1 is too large (greater than 40cm), the distance between the low end of the photovoltaic panel 300 and the snow net 100 is too large. When the snow slides onto the snow net 100, the kinetic energy is too large, and the impact on the snow net 100 is too great, which can easily cause the snow blocking device to slide.

[0048] In one embodiment, the bottom surface of the separator 3 is coplanar with the upper surface of the photovoltaic panel 300, and the height H of the separator 3 is 4~8cm.

[0049] If H is too small (H < 4cm), the height of the space between two adjacent separators 3 is too small, the volume of the bottom layer of snow is relatively small, and the bottom layer of snow has difficulty overcoming the adhesion and friction between itself and the top layer of snow to slide across the space between two adjacent separators 3 by its own weight.

[0050] If H is too large (H>8cm), the small snow blocks formed by the divider 3 will be thicker and have greater kinetic energy when they slide off the roof at 500, posing a greater danger to people and objects below.

[0051] Therefore, the height H of the separator 3 is limited to 4~8cm. In one embodiment, the distance S2 between adjacent sides of the separator 3 and the adjacent target component in the first direction is 1~2.2m; wherein, the target component is the separator 3, the first vertical rod 15 or the second vertical rod 16.

[0052] If S2 is too small (S2 < 1m), the space between two adjacent separators 3 is too narrow. The small volume snow blocks formed by the separators 3 will have difficulty overcoming the adhesion and friction between them and the adjacent small volume snow blocks to slide across the space between the two adjacent separators 3 by their own weight.

[0053] If S2 is too large (S2 > 2.2m), the small snow blocks formed by the divider 3 will be wider and have greater kinetic energy when sliding down from the roof 500, posing a greater danger to people and objects below.

[0054] Therefore, the distance S2 between adjacent sides of two adjacent separators 3 is limited to 1~2.2m.

[0055] In one embodiment, the height of the snow net body 2 is 5cm, the height H of the separator 3 is 5cm, the distance S2 between adjacent sides of two adjacent separators 3 is 1.5m, and S1 is 20cm. In actual use, the height of the snow net body 2 and the values ​​of H, S1, and S2 can be adjusted according to requirements.

[0056] In one embodiment, the bracket 1 includes a first transverse rod 13, a second transverse rod 14, a first vertical rod 15, and a second vertical rod 16. The first transverse rod 13 and the second transverse rod 14 extend along a first direction, and the first vertical rod 15 and the second vertical rod 16 extend along a second direction. The first transverse rod 13 and the second transverse rod 14 connect the first vertical rod 15 and the second vertical rod 16.

[0057] The area between the first horizontal bar 13, the first vertical bar 15, the second vertical bar 16 and the second horizontal bar 14 is the upper mounting area 11, and the area between the first vertical bar 15 and the second vertical bar 16 and below the second horizontal bar 14 is the lower mounting area 12. The tops of the multiple separators 3 are fixed to the second horizontal bar 14.

[0058] The second horizontal bar 14 and the separator 3 are flat bars, with the narrow side of the flat bar facing the front of the snow net 100. The "front of the snow net 100" refers to the side of the snow net 100 that is close to the lower end of the photovoltaic panel 300.

[0059] When the snow thickness on the surface of the photovoltaic panel 300 is greater than the vertical distance between the second horizontal bar 14 and the upper surface of the photovoltaic panel 300, the second horizontal bar 14 can cut the entire snow that slides off the surface of the photovoltaic panel 300 to create upper and lower layers, dividing it into a top layer of snow and a bottom layer of snow. Multiple separators 3 can cut the bottom layer of snow into small snow blocks, and the space between two adjacent separators 3 allows these small snow blocks to pass through. When the snow slides off, the narrow face of the flat bar-shaped second horizontal bar 14 and the separators 3 cuts the snow. The narrow face has a small area, which is beneficial for cutting the snow.

[0060] In one embodiment, the snow-blocking net body 2 includes multiple snow-blocking rods 21, which are arranged crosswise along a first direction and connected to the support 1 to form multiple snow-falling holes 22 that penetrate along a third direction; wherein, the third direction is the length direction of the photovoltaic panel 300. Figure 3 In this context, D3 represents a third party.

[0061] The snow net body 2, formed by multiple intersecting snow-blocking poles 21, prevents the top layer of snow from sliding down in one piece and can cut the top layer of snow into smaller snow blocks. The snow drop holes 22 allow the smaller snow blocks to slide down, further cutting the sliding top layer of snow and further reducing the harm of snow to people and objects below.

[0062] In one embodiment, the snow-blocking rod 21 is a flat rod, with its narrow side facing the front of the snow-blocking net 100. When snow slides down, the contact area between the narrow side of the snow-blocking rod 21 and the snow is small, which is beneficial for the snow-blocking rod 21 to cut the snow, thereby facilitating small snow chunks to slide down from the snowfall hole 22. The "front of the snow-blocking net 100" refers to the side of the snow-blocking net 100 that is close to the lower end of the photovoltaic panel 300.

[0063] In other embodiments, the snow net body 2 can be a snow shield, which is arranged perpendicular to the upper surface of the photovoltaic panel 300. Multiple snow holes 22 extending along its thickness direction can be provided on the snow shield.

[0064] In other embodiments, the snow-blocking device can be equipped with multiple snow-blocking nets 100, each capable of preventing snow from sliding off the surface of a photovoltaic panel 300. Adjacent sides of the supports 1 of two adjacent snow-blocking nets 100 share a connecting component 200, so that adjacent sides of two adjacent supports 1 are fixedly connected to the same two photovoltaic panels 300 via the same connecting component 200. Specifically, adjacent sides of the supports 1 of two adjacent snow-blocking nets 100 are welded and fixed to the first pressure seat 4 of the same connecting component 200.

[0065] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A snow-blocking device for photovoltaic panels, suitable for installation on the lower end side of an inclined photovoltaic panel, characterized in that, The system includes a snow net and connecting components. The snow net includes a support frame, a snow net body, and multiple partitions. The support frame has an upper mounting area and a lower mounting area located below the upper mounting area. The snow net body is arranged along a first direction and vertically fixed in the upper mounting area. The multiple partitions are spaced apart along the first direction and vertically fixed in the lower mounting area. The bracket is provided with connecting components on both sides along the first direction. The connecting components are adapted to be installed at intervals between two adjacent photovoltaic panels. The connecting components include a first pressure seat, a second pressure seat, and a threaded fastener. The bottom of the bracket is connected to the first pressure seat. The first pressure seat is adapted to press on the upper surface of two adjacent photovoltaic panels, and the second pressure seat is adapted to press on the lower surface of two adjacent photovoltaic panels. The threaded fastener can connect the first pressure seat and the second pressure seat so that the first pressure seat and the second pressure seat clamp the two adjacent photovoltaic panels. The first direction is the width direction of the photovoltaic panel.

2. The snow-blocking device for photovoltaic panels according to claim 1, characterized in that, The threaded fastener is a screw. The first pressure seat has a through hole extending in the second direction, and the second pressure seat has an internal threaded hole extending in the second direction. The shank of the screw can pass through the through hole and be threadedly connected to the internal threaded hole. Tightening the second pressure seat clamps two adjacent photovoltaic panels along the second direction. The second direction is the thickness direction of the photovoltaic panel.

3. The snow-blocking device for photovoltaic panels according to claim 2, characterized in that, The first pressure base includes a pressure plate, a connecting plate, and an extension plate. The pressure plate has the through hole and is used to press on the upper surfaces of two adjacent photovoltaic panels. The extension plate extends along a third direction, and the connecting plate extends along a second direction. One end of the extension plate is connected to one side of the pressure plate through the connecting plate, and the other end of the extension plate is adapted to extend out of the lower end of the photovoltaic panel and connect to the bottom of the bracket. The third direction is the length direction of the photovoltaic panel.

4. The snow-blocking device for photovoltaic panels according to claim 3, characterized in that, The distance S1 from the other end of the extension plate extending beyond the lower end of the photovoltaic panel is 20~40cm.

5. The snow-blocking device for photovoltaic panels according to claim 2, characterized in that, The first pressure seat and the bracket are integrally formed.

6. The snow-blocking device for photovoltaic panels according to claim 1, characterized in that, The bottom surface of the separator is coplanar with the upper surface of the photovoltaic panel, and the height H of the separator is 4~8cm.

7. The snow-blocking device for photovoltaic panels according to claim 1, characterized in that, The support includes a first horizontal rod, a second horizontal rod, a first vertical rod, and a second vertical rod. The first horizontal rod and the second horizontal rod extend along a first direction, and the first vertical rod and the second vertical rod extend along a second direction. The first horizontal rod and the second horizontal rod connect the first vertical rod and the second vertical rod. The area between the first horizontal bar, the first vertical bar, the second vertical bar, and the second horizontal bar is the upper mounting area; the area between the first vertical bar and the second vertical bar, below the second horizontal bar, is the lower mounting area; the tops of the plurality of partitions are fixed to the second horizontal bar. The second horizontal bar and the separator are flat bars, with the narrow side of the flat bar facing the front of the snow net.

8. The snow-blocking device for photovoltaic panels according to claim 7, characterized in that, The distance S2 between adjacent sides of the separator and the adjacent target component in the first direction is 1~2.2m; wherein, the target component is the separator, the first vertical rod or the second vertical rod.

9. The snow-blocking device for photovoltaic panels according to claim 8, characterized in that, The snow-blocking net body includes multiple snow-blocking rods, which are arranged crosswise along the first direction and connected to the bracket to form multiple snow-falling holes that pass through along a third direction; wherein, the third direction is the length direction of the photovoltaic panel.

10. The snow-blocking device for photovoltaic panels according to claim 9, characterized in that, The snow barrier is a flat bar, with its narrow side facing the front of the snow net.

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