Photovoltaic power station and anti-skiing structure thereof

Abstract

The utility model discloses a photovoltaic power station and an anti-skiing structure thereof. The photovoltaic power station comprises a photovoltaic support and a photovoltaic assembly which is installed on the photovoltaic support and is obliquely arranged along the longitudinal direction. The anti-skiing structure comprises a snow blocking beam and a row of snow blocking impeller assemblies, wherein the snow blocking beam is arranged below the photovoltaic assembly in the longitudinal direction and extends in the transverse direction, and the snow blocking impeller assemblies are installed on the snow blocking beam and distributed in the transverse direction at intervals. The snow blocking impeller assembly comprises an impeller support connected with the snow blocking beam and a snow blocking impeller rotationally supported on the impeller support. When the accumulated snow is too thick and slides off from the surface of the photovoltaic module, the snow blocking impeller assembly is adopted, kinetic energy generated by skiing pushes the snow blocking impeller to rotate, the snow blocking impeller automatically cuts and scatters the skiing, the accumulated snow falls in a loose state, and damage to personnel and property below is avoided.

Description

Technical field

[0001] The utility model belongs to the technical field of photovoltaic power generation equipment. [Background Technology]

[0002] PV panels in a photovoltaic power station are installed at a certain angle along the longitudinal direction, ranging from 15 to 45 degrees. The greater the angle of the PV panels, the greater the probability of snow sliding off during snowmelt. If large areas of snow slide from a high altitude, it can easily cause serious damage to people and property.

[0003] In order to prevent shadows from affecting the efficiency of photovoltaic power generation, the existing technology is to install snow-blocking devices such as snow-blocking clamps or snow-blocking nets on the bottom component frame of the photovoltaic system. This can slow down the speed of snow sliding down, and at the same time, it can divide the snow sliding down a large area into small pieces of snow, minimizing the damage caused by the snow sliding down. For example, the Chinese utility model patent with announcement number CN214506987U discloses a snow-blocking device for photovoltaic modules, including a first clamp and a second clamp for clamping with the frame of the photovoltaic module. The first clamp is provided with a U-shaped groove structure for clamping with the upper wall, outer wall and lower wall of the frame, and the U-shaped groove structure extends parallel to the lower wall; the second clamp cooperates with the protruding plate of the U-shaped groove structure to clamp the lower wall. The first clamp is provided with a partition plate for separating snow from the photovoltaic panel of the photovoltaic module, and the partition plate is provided on the U-shaped groove structure.

[0004] However, the use of snow blocking clamps or snow blocking nets can only block a small amount of snow. When the snow is too thick and exceeds a critical limit, the snow will break the snow blocking clamps and snow blocking nets, causing personal injury or property loss below the bracket. [Utility Model Content]

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a photovoltaic power station and its anti-skid structure to avoid personal injury or property loss caused by a whole piece of snow falling when the snow is too thick.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] First, an anti-skiing structure for a photovoltaic power station is provided, wherein the photovoltaic power station includes a photovoltaic bracket and a photovoltaic component installed on the photovoltaic bracket and inclined along the longitudinal direction. The anti-skiing structure includes a snow-blocking beam arranged longitudinally below the photovoltaic component and extending laterally, and a row of snow-blocking impeller assemblies installed on the snow-blocking beam and distributed at intervals along the laterally. The snow-blocking beam is installed on the photovoltaic bracket, and the snow-blocking impeller assembly includes an impeller support connected to the snow-blocking beam and a snow-blocking impeller rotatably supported on the impeller support.

[0008] Preferably, the photovoltaic support includes a plurality of inclined beams arranged side by side in a transverse direction, the snow blocking beams are vertically cross-fixed to the inclined beams, and the snow blocking impeller assembly is staggered with the inclined beams.

[0009] Preferably, the snow blocking beam is fixed to the longitudinal lower bottom surface of the inclined beam; and / or the rotation center point of the snow blocking impeller is lower than the longitudinal extension plane of the inclined beam.

[0010] Preferably, the snow guard beam is fixed to the longitudinal lower side of the oblique beam by bolts.

[0011] Preferably, the snow retaining beam is a channel steel or a square steel.

[0012] Preferably, the snow-blocking impeller comprises a central hub and at least three snow-blocking blades evenly distributed along the circumference of the hub, and the snow-blocking blades are bent in an arc shape.

[0013] Preferably, the hub is connected to a bearing, and the bearing is mounted on an impeller support; and / or the impeller support includes two support plates distributed in an eight-shaped pattern and correspondingly arranged on both sides of the snow-blocking impeller.

[0014] Preferably, a plurality of photovoltaic modules are arranged in a rectangular array, and a snow blocking clamp is installed on the longitudinal lower side of the photovoltaic module frame on the longitudinal lower side of the photovoltaic array.

[0015] Preferably, the snow blocking clamp and the snow blocking impeller assembly are staggered in the transverse direction.

[0016] Secondly, a photovoltaic power station is provided, which is equipped with the anti-skiing structure.

[0017] The utility model adopts the above technical solution, which has the following beneficial effects:

[0018] 1. A row of snow-blocking impeller assemblies are distributed at intervals along the horizontal direction below the photovoltaic module. The snow-blocking impeller assembly includes an impeller support connected to the snow-blocking beam and a snow-blocking impeller rotatably supported on the impeller support. In this way, when the snow is too thick and slides down from the surface of the photovoltaic module, it passes through the snow-blocking impeller assembly. The kinetic energy generated by the skiing drives the snow-blocking impeller to rotate, and the snow-blocking impeller automatically cuts and breaks up the skiing, causing the snow to fall in a loose state, thereby avoiding damage to people and property below.

[0019] Since the snow-blocking impeller assemblies are distributed in a row at intervals along the horizontal direction, they can cover the entire horizontal direction of the photovoltaic power station, and by reasonably designing the spacing between two adjacent snow-blocking impeller assemblies, the requirement of breaking up the ski cuttings within the set spacing can be met, so all the ski cuttings on the photovoltaic power station can be broken up.

[0020] Since the snow-blocking impeller assembly is installed on the snow-blocking beam, all the snow-blocking impeller assemblies can be installed on the snow-blocking beam in advance, and then the snow-blocking beam can be installed on the photovoltaic bracket, which facilitates installation. Moreover, after the snow-blocking beam and the photovoltaic bracket are installed together, the structural strength of the photovoltaic bracket can be increased to a certain extent, and the anti-skiing structure can also be ensured to be installed reliably.

[0021] 2. The snow-blocking beam is fixed vertically and cross-fixed to the inclined beam, so the snow-blocking beam has multiple fixing points in the horizontal direction, which ensures reliable fixation and also enhances the overall structural strength of the photovoltaic bracket.

[0022] Because the snow-blocking impeller assembly is staggered with the oblique beam, the impeller support can be installed on the snow-blocking beam. The diameter of the snow-blocking impeller can also be set larger without interfering with the oblique beam, which is conducive to cutting and breaking up larger pieces of skis.

[0023] 3. The snow blocking beam is fixed to the longitudinal lower bottom surface of the inclined beam, which is conducive to the design of making the rotation center point of the snow blocking impeller lower. Since it is lower than the longitudinal extension plane of the inclined beam, the kinetic energy generated by skiing can drive the snow blocking impeller to rotate.

[0024] 4. The snow retaining beam is fixed to the longitudinal lower side of the inclined beam with bolts, which is convenient for quick installation.

[0025] 5. The snow-blocking beam is made of channel steel or square steel, which is also the same main material used for photovoltaic brackets, which helps to reduce costs.

[0026] 6. The snow-blocking blades are curved, and the direction corresponding to the convex surface is the rotation direction of the snow-blocking blades, which is conducive to the kinetic energy generated by skiing to drive the snow-blocking impeller to rotate.

[0027] 7. The hub is connected to a bearing, which is installed on the impeller support, which is conducive to the kinetic energy generated by skiing to drive the snow-blocking impeller to rotate, and the support plates distributed in an eight-shaped shape can provide stable support.

[0028] 8. Of course, it is also possible to combine the existing technology to install a snow-blocking clamp on the longitudinal lower side of the photovoltaic module frame on the longitudinal lower side of the photovoltaic array. The skis are first blocked, buffered and cut and broken up by the snow-blocking clamp, and then the skis are cut and broken up by the snow-blocking impeller, so as to minimize the damage caused by the falling snow. Therefore, the range of the snow impacting the ground can be reduced, and the threat of the snow impact to the lives and property of temporary buildings and passers-by is reduced, which completely solves the safety risk problem caused by the sliding of large pieces of snow on the surface of the photovoltaic modules.

[0029] 9. Since the snow blocking clamp and the snow blocking impeller assembly are staggered in the horizontal direction, they can cooperate to break up the skis and make the snow fall in a loose state.

[0030] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0031] The utility model is further described below with reference to the accompanying drawings:

[0032] Figure 1 This is a schematic diagram of an application scenario of an anti-skid structure for a photovoltaic power station according to the utility model;

[0033] Figure 2 It is a structural schematic diagram of the snow-blocking impeller assembly;

[0034] Figure 3 This is a structural diagram of a row of snow-blocking impeller assemblies installed on a snow-blocking beam;

[0035] Figure numerals: photovoltaic module 100, photovoltaic support 1, inclined beam 11, cross beam 12, anti-ski structure 2, snow blocking beam 21, impeller support 22, bearing 23, snow blocking blade 24, snow 3. [Specific implementation method]

[0036] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0037] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0038] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "horizontal," and "vertical" used below to indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are used solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the utility model.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] Referring to existing technologies, photovoltaic modules are rectangular with rectangular frames. In a photovoltaic power station, multiple modules can be arranged in a rectangular array, tilted longitudinally. Alternatively, a single module can be used. This embodiment primarily addresses photovoltaic arrays, as snow accumulation on a single module is limited, posing little risk.

[0041] Reference Figures 1 to 3 As shown, the present invention provides a photovoltaic power station anti-skid structure 2, which includes a photovoltaic support 1 and a photovoltaic module 100 mounted on the photovoltaic support 1. The anti-skid structure 2 includes a snow-blocking beam 21 disposed longitudinally below the photovoltaic module 100 and extending laterally, and a row of snow-blocking impeller assemblies mounted on the snow-blocking beam 21 and spaced laterally. The snow-blocking beam 21 is mounted on the photovoltaic support 1. The snow-blocking impeller assemblies include an impeller support 22 connected to the snow-blocking beam 21 and a snow-blocking impeller rotatably supported on the impeller support.

[0042] Here, the snow blocking beam 21 is located longitudinally below the photovoltaic component 100, which means it is located on the longitudinal lower side of the bottom row of photovoltaic components in the photovoltaic array, and has a distance L from the longitudinal lower side of the frame of the bottom row of photovoltaic components in the photovoltaic array. The distance L does not affect the rotation of the snow blocking impeller.

[0043] When the snow 3 is too thick and slides down from the surface of the photovoltaic module, it passes through the snow barrier impeller assembly. The kinetic energy generated by the skis drives the snow barrier impeller to rotate, and the snow barrier impeller automatically cuts and breaks up the skis, causing the snow to fall in a loose state, avoiding damage to people and property below.

[0044] Since the snow-blocking impeller assemblies are distributed in a row at intervals along the horizontal direction, they can cover the entire horizontal direction of the photovoltaic power station, and by reasonably designing the spacing between two adjacent snow-blocking impeller assemblies, the requirement of breaking up the ski cuttings within the set spacing can be met, so all the ski cuttings on the photovoltaic power station can be broken up.

[0045] Since the snow-blocking impeller assembly is installed on the snow-blocking beam, all the snow-blocking impeller assemblies can be installed on the snow-blocking beam in advance, and then the snow-blocking beam can be installed on the photovoltaic bracket, which facilitates installation. Moreover, after the snow-blocking beam and the photovoltaic bracket are installed together, the structural strength of the photovoltaic bracket can be increased to a certain extent, and the anti-skiing structure can also be ensured to be installed reliably.

[0046] Referring to the prior art, the photovoltaic support 1 comprises a plurality of diagonal beams 11 arranged side by side in a transverse direction, and a crossbeam 12 fixed perpendicularly to the diagonal beams. The snow-blocking beams 21 are fixed perpendicularly to the diagonal beams 11, providing the snow-blocking beams with multiple fixing points in the transverse direction, ensuring reliable fixation and enhancing the overall structural strength of the photovoltaic support. Furthermore, the snow-blocking impeller assembly is staggered from the diagonal beams. This allows the impeller support to be mounted on the snow-blocking beams, allowing the impeller to have a larger diameter without interfering with the diagonal beams, facilitating the cutting and breaking up of larger ski blocks.

[0047] Furthermore, the snow guard beam 21 is fixed to the longitudinal lower surface of the inclined beam 11. The rotation center of the snow guard impeller is lower than the longitudinal extension plane of the inclined beam, with a height difference H between the two. H can also be 0. This facilitates the design of a lower rotation center of the snow guard impeller. Because it is lower than the longitudinal extension plane of the inclined beam, the kinetic energy generated by skiing can drive the snow guard impeller to rotate.

[0048] Preferably, the snow guard beam 21 is fixed to the longitudinal lower side of the inclined beam 11 by bolts. The snow guard beam 21 is made of channel steel or square steel. The main material used is the same as that of the photovoltaic bracket, which is convenient for reducing costs.

[0049] The snow-blocking impeller includes a central hub and at least three arc-shaped snow-blocking blades 24 distributed evenly around the hub. The convex surfaces of the snow-blocking blades correspond to the direction of rotation of the snow-blocking blades, which helps the kinetic energy generated by skiing to drive the snow-blocking impeller to rotate.

[0050] Furthermore, the wheel hub is connected to a bearing 23, which is mounted on an impeller support 21. The impeller support 21 includes two support plates arranged in a figure-eight pattern, located on either side of the snow-blocking impeller. The bearings facilitate the rotation of the snow-blocking impeller by the kinetic energy generated by skiing. The figure-eight pattern of support plates provides stable support and can be triangular, such as an isosceles triangle.

[0051] In addition, a snow guard or other snow-blocking structure, such as the snow guard device mentioned in the background technology, can be installed on the longitudinal lower side of the photovoltaic module frame on the longitudinal lower side of the photovoltaic array. The snow guard first blocks, buffers, and cuts and breaks up the snow, and then the snow impeller cuts and breaks up the snow, minimizing the damage caused by falling snow. This can reduce the range of snow impacting the ground, reduce the threat to temporary buildings and the lives and property of passers-by, and completely resolve the safety risks caused by large pieces of snow sliding off the surface of the photovoltaic module.

[0052] Furthermore, the snow blocking clamp and the snow blocking impeller assembly are arranged in a staggered manner in the transverse direction, so that the snow blocking clamp and the snow blocking impeller assembly can cooperate to break up the ski cuts and make the snow fall in a loose state.

[0053] 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 will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A photovoltaic power station anti-skid structure, comprising a photovoltaic bracket and a photovoltaic assembly mounted on the photovoltaic bracket and arranged longitudinally and tilted, characterized in that: The anti-skiing structure includes a snow-blocking beam arranged longitudinally below the photovoltaic component and extending laterally, and a row of snow-blocking impeller assemblies installed on the snow-blocking beam and distributed at intervals along the laterally. The snow-blocking beam is installed on the photovoltaic bracket, and the snow-blocking impeller assembly includes an impeller support connected to the snow-blocking beam and a snow-blocking impeller rotatably supported on the impeller support.

2. The anti-skid structure of a photovoltaic power station according to claim 1, characterized in that: The photovoltaic support comprises a plurality of inclined beams arranged side by side in a transverse direction, the snow blocking beams are vertically crossed and fixed to the inclined beams, and the snow blocking impeller assembly is staggered with the inclined beams.

3. The anti-skid structure of a photovoltaic power station according to claim 2, characterized in that: The snow blocking beam is fixed to the longitudinal lower bottom surface of the inclined beam; and / or the rotation center point of the snow blocking impeller is lower than the longitudinal extension plane of the inclined beam.

4. The anti-skiing structure of a photovoltaic power station according to claim 2, characterized in that: The snow blocking beam is fixed to the longitudinal lower side of the oblique beam by using bolts.

5. The anti-skiing structure of a photovoltaic power station according to claim 1, characterized in that: The snow blocking beam is a channel steel or a square steel.

6. The anti-skid structure of a photovoltaic power station according to claim 1, characterized in that: The snow-blocking impeller comprises a central hub and at least three snow-blocking blades uniformly distributed along the circumference of the hub, and the snow-blocking blades are bent in an arc shape.

7. The anti-skid structure of a photovoltaic power station according to claim 6, characterized in that: The hub is connected to a bearing, and the bearing is mounted on an impeller support; and / or the impeller support includes two support plates arranged in an eight-shaped pattern on both sides of the snow-blocking impeller.

8. The anti-skid structure of a photovoltaic power station according to claim 1, characterized in that: A plurality of photovoltaic modules are arranged in a rectangular array, and a snow blocking clamp is installed on the longitudinal lower side of the photovoltaic module frame on the longitudinal lower side of the photovoltaic array.

9. The anti-skid structure of a photovoltaic power station according to claim 8, characterized in that: The snow blocking clamp and the snow blocking impeller assembly are arranged alternately in the transverse direction.

10. A photovoltaic power station, characterized in that: The anti-ski structure according to any one of claims 1 to 9 is installed.

Images