Cutting skiing device and photovoltaic power station
By installing a ski-cutting device between photovoltaic modules, which uses steel strands and pressure plate bolts to cut down the snow, the problem of easy damage to existing snow-blocking devices is solved, improving the safety and economy of photovoltaic power stations.
Patent Information
- Application Number
- CN202422954171.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing snow-blocking devices for photovoltaic modules are prone to damage and pose safety risks when snow accumulation is too thick, failing to effectively prevent snow from sliding down and threatening the ground and pedestrians.
The device employs a ski-cutting mechanism, which includes a fixing component and a cutting line. The fixing component is installed between horizontally adjacent photovoltaic modules, and the cutting line has a height gap with the surface of the photovoltaic module to cut the falling snow. The fixing component consists of steel strand and pressure plate bolts, which are flexible to install and not easily damaged.
It effectively reduces the thickness of snow blocks, decreases the impact of sliding snow, reduces the threat to temporary buildings and pedestrians, improves the safety and lifespan of photovoltaic modules, and reduces installation costs.
Smart Images
Figure CN223713934U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to photovoltaic technical field, concretely relates to a cutting skiing device of photovoltaic power station.
BACKGROUND
[0002] The photovoltaic module is set relatively smooth on the surface because it needs to prevent the accumulation of dust from affecting the power generation, and the snow will be more easily slid off after snowing. But generally, the accumulated snow will slide under the action of gravity, and if it is not intervened after sliding, it will threaten the life and property of temporary buildings and passers-by on the ground.
[0003] The prior art installs a snow blocking clamp on the lower side frame of the photovoltaic module or installs a snow blocking net below. For the scene of installing a snow blocking clamp, basically one snow blocking clamp is installed for each photovoltaic module, and in order to play the maximum snow blocking role, it is generally installed at the transverse middle position of the lower side frame of the photovoltaic module, which cannot play a good snow blocking role, and there is a risk of breaking the snow blocking clamp when the accumulated snow is too thick, and the frequency of accidents caused by property loss due to snow sliding is still relatively high. For the scheme of installing a snow blocking net, the snow blocking net bears the weight of the accumulated snow, and when the accumulated snow is too thick and exceeds the critical limit value, the snow impact the snow blocking net, causing damage to the snow blocking net, which can cause injury to the personnel below the support or property loss.
UTILITARY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a cutting skiing device and a photovoltaic power station, which solve the problem that the snow blocking scheme of the existing snow blocking plate and snow blocking net is easy to damage.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] Firstly, a cutting skiing device is provided, which comprises:
[0007] A fixing member is installed between two transversely adjacent photovoltaic modules, and at least two fixing members are arranged side by side along the transverse direction;
[0008] A cutting line extends along the transverse direction and is connected with the fixing member, and the cutting line has a height gap with the surface of the photovoltaic module;
[0009] The accumulated snow sliding on the surface of the photovoltaic module is cut by the cooperation of the cutting line and the fixing member.
[0010] Preferably, the fixing member is provided with a cutting line fixing part higher than the surface of the photovoltaic module, and the cutting line is connected with the cutting line fixing part.
[0011] Preferably, the cutting line fixing part is a fixing hole, and the cutting line passes through the fixing hole.
[0012] Preferably, the cutting line is a steel strand.
[0013] Preferably, the fixing member comprises a pressing plate and a pressing plate bolt for fixing the pressing plate to the frames of the two adjacent photovoltaic modules in the lateral direction.
[0014] Preferably, the pressing plate bolt comprises a screw and a nut located on the upper side of the pressing plate and connected to the screw, the pressing plate is provided with a first through hole matched with the screw; and / or, the lateral sides of the pressing plate are provided with pressing edges matched with the inner side walls of the frame A of the photovoltaic module.
[0015] Preferably, the photovoltaic module is fixed to a crossbeam, the crossbeam is provided with a second through hole, the screw passes through the second through hole and the nut is located below the crossbeam; and / or, the pressing plate is a sheet metal part.
[0016] Preferably, the second through hole is a waist-shaped hole, and the crossbeam is provided with a row of waist-shaped holes in the lateral direction; and / or, the crossbeam is a C-shaped steel and the inner side of the mouth is provided with a limiting flange.
[0017] Preferably, the screw is a T-shaped screw, and the length of the nut is greater than the gap between the two adjacent photovoltaic modules in the lateral direction and the width of the nut is less than the gap between the two adjacent photovoltaic modules in the lateral direction.
[0018] In another aspect, a photovoltaic power station comprising the cutting snow device is provided.
[0019] The above technical scheme has the following beneficial effects:
[0020] 1. At least two fixing members are arranged side by side in the lateral direction and connected with the cutting line, since there is a high gap between the cutting line and the surface of the photovoltaic module, usually about 80-100mm, the cutting line can cut the thickness direction of the snow, mainly to make the thickness of the cut snow smaller, and a part of the cut snow falls from the gap between the cutting line and the surface of the photovoltaic module, and the other part of the snow falls from the upper side of the cutting line.
[0021] The fixing member is installed between the two adjacent photovoltaic modules in the lateral direction, which can avoid shading and blocking of the photovoltaic module, affecting the efficiency of the photovoltaic module in absorbing solar energy, and the fixing member also has a certain cutting snow function, which can cut the snow in the lateral direction. Moreover, the cutting snow device can be flexibly adjusted in the longitudinal direction, and does not have to be installed at the lower side of the photovoltaic array in the longitudinal direction like the existing snow board and snow net, so the installation position is more flexible.
[0022] When the accumulated snow on the surface of the photovoltaic module continuously accumulates, the component of the gravity of the accumulated snow in the direction of the component inclination exceeds the frictional resistance provided by the surface of the component, the accumulated snow will slide down along the surface of the component, and the kinetic energy generated during the sliding down will automatically cut the accumulated snow when the accumulated snow passes through the cutting line, and the cutting snow function of the fixing member makes the snow become loose or small pieces.
[0023] Thus, the way of installing a snow blocking clamp relative to an original photovoltaic module can reduce the range of snow impact on the ground, reduce the threat of snow impact to the life and property of temporary buildings and passing pedestrians, and solve the safety risk problem caused by the sliding of large snow on the surface of the photovoltaic module. Compared with the existing snow blocking scheme of snow blocking plate and snow blocking net, the cutting line adopts a flexible component and can be deformed appropriately, is not easy to be damaged, and the impact borne by the fixing member is also smaller, so the fixing member is also not easy to be damaged.
[0024] In addition, a plurality of cutting snow devices can be distributed along the longitudinal direction, so that the entire photovoltaic power station forms a plurality of cutting snow devices distributed in steps along the longitudinal direction, thereby playing a role of step cutting snow, thereby improving the cutting snow effect. Moreover, after passing through a plurality of cutting snow devices, the snow not only becomes smaller in size and is finally completely broken, but also the impact force is reduced after step buffering, thereby minimizing the damage caused by the sliding of snow.
[0025] 2. The cutting line is connected with the fixing member on the cutting line fixing part, for example, by penetrating the fixing hole. When the cutting line is fixed, the steel strand can be pulled tight from the end of the steel strand, and the middle of the steel strand penetrates the fixing hole to pull the steel strand tight, which is convenient and fast for fixing, and the height and relative position of the steel strand will not change, thereby maintaining good cutting snow effect.
[0026] 3. The steel strand is composed of a plurality of steel wires twisted together, and a zinc layer is added to the surface of the steel wire, which not only has high strength, but also is not easy to rust, has long service life, and has better effect of cutting snow.
[0027] 4. The fixing member adopts a combination structure of a pressing plate and a pressing plate bolt. Since the pressing plate bolt includes a screw and a nut located on the upper side of the pressing plate and connected with the screw, and the pressing plate is provided with a first through hole matched with the screw, when the fixing member is installed, the screw penetrates the first through hole upward, and then the pressing plate and the nut are placed in sequence, and then the nut is tightened, so that the fixing member can be fixed from the upper side, which is convenient for the operator to operate.
[0028] 5. Since the transverse two sides of the pressing plate are provided with pressing edges matched with the inner side wall of the A side of the photovoltaic module frame, the pressing plate not only presses the photovoltaic module downward, but also has the effect of limiting the transverse movement of the photovoltaic module. The fixing member not only fixes the cutting line, but also strengthens the fixation of the photovoltaic module.
[0029] 6. The photovoltaic module is fixed on the cross beam, and the cross beam is provided with a second through hole. The screw penetrates the second through hole. Since the second through hole is a waist-shaped hole, it is convenient for the screw to penetrate and align the gap between the two adjacent photovoltaic modules in the transverse direction.
[0030] 7. Since the pressure plate is a sheet metal part, the pressure plate bolts can also be made of standard parts with simple modifications, which can realize industrial production, significantly reduce costs, and have high strength, are not easy to rust, and have a long service life.
[0031] 8. Since the screw has a T-shaped structure and the length of the nut is greater than the gap between two adjacent photovoltaic modules in the horizontal direction and the width is less than the gap between two adjacent photovoltaic modules in the horizontal direction, the screw can be placed from top to bottom. After inserting the screw nut into the gap between the modules, rotate it 90° and fix the pressure plate to the A side of the module frame with the nut. Moreover, the nut can be tightened from the top, which is convenient for construction personnel to operate.
[0032] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]
[0033] The utility model will be further described below with reference to the accompanying drawings:
[0034] Figure 1 This is a schematic diagram of the installation structure of the ski cutting device in one embodiment;
[0035] Figure 2 This is a schematic diagram of the mounting structure of the fastener in one embodiment;
[0036] Figure 3 This is a schematic diagram of the screw structure in one embodiment;
[0037] Figure 4 This is a schematic diagram of the pressure plate in one embodiment;
[0038] Figure 5 This is a longitudinal view of the beam in one embodiment;
[0039] Figure 6 This is a top view of the beam in one embodiment;
[0040] Figure 7 This is a schematic diagram of the installation structure of the cutting ski device in another embodiment;
[0041] Figure 8 This is a schematic diagram of the mounting structure of the fastener in another embodiment;
[0042] Figure 9 This is a schematic diagram of the screw structure in another embodiment;
[0043] Reference numerals: photovoltaic module 100, pressure plate bolt 1, screw 11, nut 111, fixing hole 112, nut 12, pressure plate 2, first through hole 21, pressing edge 22, cutting line 3, crossbeam 4, second through hole 41, limiting flange 42.
Detailed Implementation Methods
[0044] The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0045] Those skilled in the art can understand that the features in the following embodiments and embodiments can be combined with each other without conflict.
[0046] The terms used in the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. For example, the words indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "longitudinal", "transverse" and the like in the following are only based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the indicated device / element must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the utility model.
[0047] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0048] In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.
[0049] With reference to the prior art, the photovoltaic module is rectangular, and a rectangular frame is arranged around the photovoltaic module, the frame has an A side, a B side and a C side, wherein the A side is located on the upper side of the frame. In a photovoltaic power station, a plurality of photovoltaic modules are usually arranged in a rectangular array to form a photovoltaic array, and the photovoltaic modules are arranged in a longitudinal direction, and the skis on the photovoltaic modules also slide from top to bottom in the longitudinal direction. In order to solve the safety risk problem caused by the sliding of a large amount of snow on the surface of the photovoltaic array, the photovoltaic power station is provided with a cutting ski device.
[0050] Referring to Figures 1 to 6As shown, in one embodiment, the cutting snow device comprises:
[0051] The fixing member is installed between two adjacent photovoltaic modules in the transverse direction, and at least two fixing members are arranged side by side in the transverse direction;
[0052] The cutting line 3 extends in the transverse direction and is connected to the fixing member, and the cutting line 3 has a height gap H with the surface of the photovoltaic module;
[0053] The snow falling from the surface of the photovoltaic module is cut by the cooperation of the cutting line and the fixing member.
[0054] The fixing member is provided with a cutting line fixing part higher than the surface of the photovoltaic module, and the cutting line is connected to the cutting line fixing part. In this way, the cutting line is kept at a suitable height to effectively cut the snow falling from the surface of the photovoltaic module.
[0055] It can be understood that the cutting line 3 does not have to be arranged only near the longitudinal lower side of the photovoltaic array, and a plurality of cutting lines 3 can be arranged in the longitudinal direction. Of course, a row of fixing members is installed corresponding to the longitudinal position of the cutting line. The fixing member can be arranged one between every two adjacent photovoltaic modules in the transverse direction, or can be arranged at intervals in the transverse direction. It is preferred that one fixing member is arranged between every two adjacent photovoltaic modules in the transverse direction to ensure the fixing reliability of the cutting snow device.
[0056] The technical scheme of the embodiment, at least two fixing members are arranged side by side in the transverse direction and connected to the cutting line. Since the cutting line has a height gap with the surface of the photovoltaic module, usually about 80-100 mm, the cutting line can cut the snow in the thickness direction, mainly to make the thickness of the cut snow smaller. A part of the cut snow falls from the gap between the cutting line and the surface of the photovoltaic module, and the other part of the snow falls from the upper side of the cutting line. The fixing member is installed between two adjacent photovoltaic modules in the transverse direction, which can avoid shading and blocking of the photovoltaic module, affecting the efficiency of the photovoltaic module to absorb solar energy. At the same time, the fixing member also has a certain cutting snow effect, which can cut the snow in the transverse direction. Moreover, the cutting snow device can be flexibly adjusted in the longitudinal direction, and does not have to be installed at the longitudinal lower side of the photovoltaic array like the existing snow board and snow net, so the installation position is more flexible.
[0057] When the snow continuously accumulates on the surface of the photovoltaic module, the component of the gravity of the snow in the direction of the inclination of the module exceeds the frictional resistance provided by the surface of the module, the snow will slide down along the surface of the module. The kinetic energy generated during the sliding down makes the snow be automatically cut when passing through the cutting line. The cooperation of the cutting snow effect of the fixing member makes the snow fall in a loose or small block.
[0058] Thus, compared with the original installation of a snow blocking clamp for a photovoltaic module, the range of snow impact on the ground can be reduced, the threat of snow impact to the life and property of temporary buildings and passing pedestrians can be reduced, and the safety risk problem caused by the large snow sliding off the surface of the photovoltaic module can be solved. Compared with the existing snow blocking scheme of a snow blocking plate and a snow blocking net, the cutting line is made of a flexible component and can be deformed appropriately, is not easy to be damaged, and the impact borne by the fixing component is also smaller, so the fixing component is also not easy to be damaged.
[0059] In addition, a plurality of cutting snow devices can be distributed along the longitudinal direction, so that the entire photovoltaic power station forms a plurality of cutting snow devices distributed in steps along the longitudinal direction, and plays a role of step cutting snow, thereby improving the cutting snow effect. Moreover, after passing through a plurality of cutting snow devices, the snow not only becomes smaller in size and is finally completely broken, but also has a smaller impact force after step buffering, thereby minimizing the damage caused by the snow sliding.
[0060] In some embodiments, the cutting line fixing part is a fixing hole 112, and the cutting line 3 passes through the fixing hole. Of course, it can be understood that the cutting line can also be fixed by binding, in which case the cutting line fixing part can be a T-shaped structure, an L-shaped structure, or a U-shaped structure, etc.
[0061] Preferably, the cutting line 3 is a steel strand. The steel strand is composed of a plurality of steel wires twisted together, and the surface of the steel wire is provided with a zinc plating layer, so that the steel strand has high strength, is not easy to rust, has a long service life, and has a better effect of cutting snow. It can be understood that the steel strand can also be replaced by steel bars, fiber ropes, etc.
[0062] In some embodiments, the fixing component includes a pressing plate 2 and a pressing plate bolt 1 for fixing the pressing plate to the frame of two adjacent photovoltaic modules in the transverse direction. The pressing plate bolt 1 includes a screw 11 and a nut 12 located on the upper side of the pressing plate and connected with the screw, and the pressing plate 2 is provided with a first through hole 21 matched with the screw. The two lateral sides of the pressing plate 2 are provided with pressing edges 22 matched with the inner side walls of the frame A of the photovoltaic module. Since the two lateral sides of the pressing plate are provided with the pressing edges matched with the inner side walls of the frame A of the photovoltaic module, the pressing plate not only presses the photovoltaic module downward, but also limits the transverse movement of the photovoltaic module. The fixing structure of the pressing plate and the pressing plate bolt utilizes the gap between the two adjacent photovoltaic modules, and is convenient to install. Specifically, the photovoltaic module 100 is fixed to a crossbeam 4, the crossbeam 4 is provided with a second through hole 41, the screw 11 passes through the second through hole 41, and the nut is located below the crossbeam 4. Here, the nut can be an external hexagonal structure, the fixing structure of the pressing plate and the pressing plate bolt not only fixes the cutting line, but also has the effect of strengthening the fixation of the photovoltaic module.
[0063] Preferably, the pressing plate 2 is a stainless steel sheet, which can be made into a general part. The pressing plate bolt 1 can also be a standard part which is simply modified, such as a rustproof bolt. Therefore, the fixing structure of the pressing plate and the pressing plate bolt can be produced industrially, which significantly reduces the cost, has high strength, is not easy to rust, and has a long service life.
[0064] Specifically, the second through hole 41 is a waist-shaped hole, and the crossbeam is provided with a row of waist-shaped holes in the transverse direction, which facilitates the screw to pass through and align with the gap between the two adjacent photovoltaic modules in the transverse direction. The crossbeam 4 is a C-shaped steel, and the inner side of the opening is provided with a limiting flange 42.
[0065] Reference Figures 7 to 9 As shown in some embodiments, the screw 11 is a T-shaped screw, and the nut is rectangular, and the length of the nut is greater than the gap between the two adjacent photovoltaic modules in the transverse direction, and the width of the nut is less than the gap between the two adjacent photovoltaic modules in the transverse direction. Since the screw is T-shaped, and the length of the nut is greater than the gap between the two adjacent photovoltaic modules in the transverse direction, and the width of the nut is less than the gap between the two adjacent photovoltaic modules in the transverse direction, the screw can be placed from top to bottom, the nut of the screw is inserted into the gap between the modules and rotated by 90°, and the pressing plate is fixed on the side frame A of the module through the nut. Moreover, the nut can be tightened from the top side, which is convenient for the operator to operate. It can be understood that the nut can not pass through the second through hole, but can cooperate with the limiting flange 42.
[0066] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Those skilled in the art should understand that the utility model includes but is not limited to the content described in the drawings and the above specific embodiments. Any modification which does not deviate from the function and structural principle of the utility model will be included in the scope of the claims.
Claims
1. A cutting ski device, characterized in that, The application relates to a cutting and sliding snow device for photovoltaic modules. The device comprises: a fixing member installed between two transversely adjacent photovoltaic modules, and at least two fixing members are arranged transversely side by side; a cutting line extending transversely and connected with the fixing member, and the cutting line has a height gap with the surface of the photovoltaic module; 2. A cutting ski apparatus as defined in claim 1, wherein, the accumulated snow on the surface of the photovoltaic module is cut by the cooperation of the cutting line and the fixing member.
3. A cutting ski apparatus as defined in claim 2, wherein, The fixing member is provided with a cutting line fixing part higher than the surface of the photovoltaic module, and the cutting line is connected with the cutting line fixing part.
4. A cutting ski apparatus as defined in claim 1, wherein, The cutting line fixing part is a fixing hole, and the cutting line passes through the fixing hole.
5. A cutting ski apparatus as defined in claim 1, wherein, The cutting line is a steel strand.
6. A cutting ski apparatus as defined in claim 5, wherein, The fixing member comprises a pressing plate and a pressing plate bolt for fixing the pressing plate on the frame of the two transversely adjacent photovoltaic modules.
7. A cutting ski apparatus as defined in claim 6, wherein, The pressing plate bolt comprises a screw and a nut located on the upper side of the pressing plate and connected with the screw, and the pressing plate is provided with a first through hole matched with the screw; and / or the two lateral sides of the pressing plate are provided with pressing edges matched with the inner side walls of the frame A of the photovoltaic module.
8. A cutting ski apparatus as defined in claim 7, wherein, The photovoltaic module is fixed on a crossbeam, the crossbeam is provided with a second through hole, the screw passes through the second through hole and the nut is located below the crossbeam; and / or the pressing plate is a sheet metal part.
9. A cutting ski apparatus as defined in claim 6, wherein, The second through hole is a waist-shaped hole, and the crossbeam is provided with a row of waist-shaped holes along the transverse direction; and / or the crossbeam is a C-shaped steel and the inner side of the mouth part is provided with a limiting flange.
10. A photovoltaic power plant, characterized in that, The screw is a T-shaped screw, and the length of the nut is greater than the gap between the two transversely adjacent photovoltaic modules and the width is less than the gap between the two transversely adjacent photovoltaic modules. The application further relates to a cutting and sliding snow device comprising the device as claimed in any one of claims 1 to 9.