Adjustable snow blocking device installed in photovoltaic system

Abstract

The utility model discloses an adjustable snow blocking device installed in a photovoltaic system, which belongs to the field of photovoltaic technology, and comprises a snow blocking clamp and an adjustable clamp which are fixed together, the snow blocking clamp is connected with a side A of a frame, the snow blocking clamp is provided with a snow blocking plate, the adjustable clamp is connected with an extension edge, and the extension edge is provided with a snow blocking plate. A height adjusting structure is arranged between the snow blocking clamp and the adjustable clamp and used for adjusting the relative height of the adjustable clamp and the snow blocking clamp so that the snow blocking device can be fixed to frames of different heights. According to the utility model, the impact range of accumulated snow on the ground can be reduced, the threat of the impact of the accumulated snow on the life and property of temporary buildings and passersby is reduced, the safety risk problem caused by the sliding of large accumulated snow on the surface of the photovoltaic module is solved, and the problem that the existing snow blocking device cannot adapt to the installation of different frame heights is solved.

Description

[Technical field]

[0001] The utility model belongs to the technical field of photovoltaic power generation equipment, and in particular relates to an adjustable snow shielding device installed in a photovoltaic system. [Background technology]

[0002] In the field of household photovoltaics, household photovoltaic system components are installed on farmers' roofs at a certain angle, ranging from 15 to 45 degrees. When melting snow, the larger the angle of the photovoltaic components, the greater the probability of snow sliding down. If a large area of ​​snow slides down from a high place, it is easy to cause serious damage to people and property. Installing a snow blocking device on the bottom component frame of the photovoltaic system can slow down the speed of snow sliding down, and at the same time, it can divide the large area of ​​snow sliding down into small pieces of snow, minimizing the damage caused by snow sliding down.

[0003] Currently, the frame height of photovoltaic modules ranges from 30 to 35 cm, and there is a lack of a snow-blocking device that can adapt to installation at different frame heights. [Utility Model Content]

[0004] In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an adjustable snow shield installed in a photovoltaic system, so as to solve the problem that the existing snow shield cannot adapt to installation with different frame heights.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The invention discloses an adjustable snow-blocking device installed in a photovoltaic system. The snow-blocking device is installed on the front frame of the photovoltaic module. The frame has an A surface and a C surface, and the C surface is provided with an extended edge extending inward. The snow-blocking device comprises a snow-blocking clamp and an adjustable clamp fixed together. The snow-blocking clamp is connected to the A surface of the frame. The snow-blocking clamp is provided with a snow shield. The adjustable clamp is connected to the extended edge. A height adjustment structure is provided between the snow-blocking clamp and the adjustable clamp. The height adjustment structure is used to adjust the relative height between the adjustable clamp and the snow-blocking clamp so that the snow-blocking device can be fixed to frames of different heights.

[0007] Preferably, the height adjustment structure includes first adjustment teeth arranged vertically on the snow guard clamp and second adjustment teeth arranged vertically on the adjustable clamp, and the first adjustment teeth and the second adjustment teeth are engaged with each other.

[0008] Preferably, the snow guard clamp is provided with a first clamping opening, the first clamping opening has a first upper clamping edge and a first lower clamping edge, the first upper clamping edge cooperates with the A surface of the frame, the first lower clamping edge is located on the lower side of the C surface of the frame, and the snow guard is arranged above the first upper clamping edge.

[0009] Preferably, the adjustable clamp is provided with a second clamping opening, the second clamping opening has a second upper clamping edge and a second lower clamping edge, the second upper clamping edge cooperates with the upper side of the extension edge, and the second lower clamping edge cooperates with the lower side of the extension edge.

[0010] Preferably, the snow guard clamp is provided with a first fixed edge extending vertically downward from the head end of the first lower clamping edge, the adjustable clamp is provided with a second fixed edge extending vertically downward from the head end of the second lower clamping edge, the first adjusting tooth is provided on the first fixed edge, and the second adjusting tooth is provided on the second fixed edge.

[0011] Preferably, a buckling structure is provided between the first upper clamping edge and the frame A surface.

[0012] Preferably, a buffering breaking angle is provided above the first upper clamping edge, and the buffering breaking angle is provided at the rear side of the snow guard to absorb the impact force when the snow slides down and to break the ice on the bottom layer of the snow.

[0013] Preferably, the mitigation crushing angle extends obliquely upward from rear to front, so that the buckling structure is buckled tighter under the impact force of accumulated snow.

[0014] Preferably, a fastener is provided between the snow shield clamp and the adjustable clamp for fixing the snow shield clamp and the adjustable clamp together after the relative height of the adjustable clamp is adjusted.

[0015] Preferably, the fastener is a fixing bolt, the snow guard clamp is provided with a through hole connected to the fixing bolt, and the adjustable clamp is provided with a waist-shaped hole connected to the fixing bolt.

[0016] Preferably, a first inner side is vertically connected between the first upper clamping edge and the first lower clamping edge, the first upper clamping edge is provided with a horizontal extension portion extending toward the front side of the first inner side and connected to the snow guard, the front side of the first lower clamping edge is provided with a hypotenuse extending to the snow guard and connected to the first lower clamping edge, the horizontal extension portion, the first inner side and the hypotenuse are combined to form a right triangle structure.

[0017] Preferably, reinforcing ribs for increasing the strength of the snow guard are provided at the junction of the bevel and the snow guard.

[0018] Preferably, a buckled flange is provided at the head end of the second upper clamping edge, a transition portion is provided at the connecting portion between the extended edge and the frame, and the buckled flange is buckled with the transition portion.

[0019] Preferably, the snow guard clamp and the adjustable clamp are made of aluminum alloy profiles.

[0020] The utility model adopts the above technical solution and has the following beneficial effects:

[0021] 1. The technical solution adopted by the utility model is that the snow blocking clamp is connected to the A surface of the frame, and the adjustable clamp is connected to the extended edge. Therefore, when the height of the frame changes, it is not necessary to replace the snow blocking device. It is only necessary to adjust the relative height between the snow blocking clamp and the adjustable clamp through the height adjustment structure. After the height adjustment is completed, the snow blocking clamp and the adjustable clamp are fixed together to keep the height unchanged and keep the fixing with the frame. Therefore, the snow blocking device can be fixed with frames of different heights through the adjustment of the height adjustment structure.

[0022] In addition, the snow guard can block the snow that slides slowly from the surface of the photovoltaic panels and divides the snow for skiing. It can also break and cut the fast-falling snow and divide the snow that slides down a large area into multiple small pieces of snow, thereby minimizing the damage caused by the sliding of snow.

[0023] Therefore, the utility model can reduce the range of snow impacting the ground, reduce the threat of snow impact to temporary buildings and the lives and property of passers-by, solve the safety risk problems caused by large pieces of snow sliding off the surface of photovoltaic modules, and the problem that existing snow blocking devices cannot adapt to installation at different frame heights.

[0024] 2. The first adjusting tooth and the second adjusting tooth are plugged in, and the snow blocking device can be adapted to different heights of the photovoltaic module frames by adjusting the upper and lower relative positions; and after the first adjusting tooth and the second adjusting tooth are plugged in, they are staggered and engaged in the upper and lower directions. Since the snow blocking clamp and the adjustable clamp are fixed together, the upper and lower positions are also reliably fixed at the same time and are not easy to loosen.

[0025] 3. In the first clamping structure, the first upper clamping edge cooperates with the A surface of the frame, the first lower clamping edge is located at the lower side of the C surface of the frame, and the frame is located within the height range between the first upper clamping edge and the first lower clamping edge. The height can be changed within this range. Of course, even if the height of the frame changes, the first upper clamping edge and the A surface of the frame must always maintain a matching relationship. If the height of the frame changes, the gap between its C surface and the first lower clamping edge will change. Since the adjustable clamp is connected to the extension edge, the height of the adjustable clamp will also change accordingly after the height of the frame changes.

[0026] 4. In the second clamp structure, the second upper clamping edge cooperates with the upper side of the extended edge, and the second lower clamping edge cooperates with the lower side of the extended edge, so that the second clamp is buckled and fixed to the C-side extended edge of the photovoltaic module frame. Even if the height of the frame changes, after the height of the adjustable clamp changes accordingly, after the snow guard clamp and the adjustable clamp are fixed together, the snow guard device is effectively fixed to the photovoltaic module frame.

[0027] 5. Since the snow guard clamp is provided with a first fixed edge extending vertically downward from the head end of the first lower clamping edge, the adjustable clamp is provided with a second fixed edge extending vertically downward from the head end of the second lower clamping edge, and the first adjusting tooth is provided on the first fixed edge, and the second adjusting tooth is provided on the second fixed edge, the height adjustment structure and the frame fixing structure are staggered up and down, which facilitates the first adjusting tooth and the second adjusting tooth to be plugged in and to adjust the relative position up and down.

[0028] 6. Since a buckle structure is provided between the first upper clamping edge and the A surface of the frame, after the snow guard clamp and the adjustable clamp are fixed together, the buckle structure is fixed to the frame. Compared with connection methods such as fasteners, the buckle structure fixing method is more convenient for installation.

[0029] 7. A buffer breaking angle is provided above the first upper clamping edge to absorb the first wave of impact force when the snow slides down and to break the ice on the bottom layer of the snow, and to facilitate the subsequent snow guard to separate the skis.

[0030] 8. Since the buffer crushing angle extends obliquely upward from the back to the front, the buckling structure is buckled tighter under the impact of snow accumulation, which greatly reduces the phenomenon of the snow guard falling off under the impact of snow accumulation.

[0031] 9. While the first fixed side and the second fixed side are fixed together by the fastener, the snow blocking clamp and the adjustable clamp are also fixed together, so that the snow blocking clamp and the adjustable clamp cooperate to fix the entire snow blocking device and the frame together.

[0032] 10. When installing the snow guard, first connect the fixing bolt with the through hole and the waist-shaped hole, but do not tighten the nut yet. This way, the adjustable clamp can be adjusted up and down relative to the snow guard. During the adjustment process, the waist-shaped hole slides up and down along the fixing bolt. After it is adjusted into place, tighten the nut, which makes it convenient to adjust the height.

[0033] 11. Since the horizontal extension part, the first inner side and the hypotenuse form a right triangle structure, a triangular cavity is formed inside, thereby increasing the overall strength of the snow guard clamp and extending the snow guard outward to a suitable position to prevent the snow guard from blocking the photovoltaic module.

[0034] 12. Since reinforcing ribs are provided at the junction of the bevel and the snow guard to increase the strength of the snow guard, the snow guard can be prevented from being broken when the accumulated snow slides down quickly.

[0035] 13. Since the head end of the second upper clamping edge is provided with a snap-on flange, and the connecting portion between the extended edge and the frame is provided with a transition portion, the snap-on flange is snapped with the transition portion, so that the force when tightening the fixing bolts can be evenly transmitted to the cavity of the photovoltaic module frame, reducing the occurrence of stress concentration.

[0036] 14. Since the snow guard clamp and the adjustable clamp are made of aluminum alloy profiles, which are extruded, industrial production can be achieved, which significantly reduces costs. They are also high in strength, not easy to rust, and have a long service life.

[0037] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0038] The utility model is further described below in conjunction with the accompanying drawings:

[0039] Figure 1 This is a schematic structural diagram of an adjustable snow shield installed in a photovoltaic system according to the utility model;

[0040] Figure 2 It is a structural schematic diagram of the snow blocking clamp;

[0041] Figure 3 is a schematic diagram of the structure of the adjustable clamp;

[0042] Figure 4 It is a schematic diagram of the structure of a conventional photovoltaic module frame;

[0043] Figure 5 It is a structural schematic diagram of the matching part between the snow blocking fixture and the frame;

[0044] Figure 6 It is a structural schematic diagram of the matching part of the snow blocking clamp and the adjustable clamp;

[0045] Figure 7 A schematic diagram of the structure for setting reinforcement ribs for the bevel and snow guard;

[0046] Figure 8 It is a schematic diagram of the matching structure of the snow blocking device and the first height frame;

[0047] Fig. 9 It is a schematic diagram of the matching structure of the snow blocking device and the second height frame;

[0048] Fig.10 It is a schematic diagram of the matching structure of the snow blocking device and the frame of the third height;

[0049] Figure numerals: photovoltaic module 100, frame 11, A surface 111, buckling groove 1111, B surface 112, C surface 113, extended edge 1131, snow blocking device 200, snow blocking clamp 21, first clamping opening 211, first upper clamping edge 2111, first inner side edge 2112, first lower clamping edge 2113, arc-shaped lower flange 2114, buckling protrusion 2115, force-mitigating crushing angle 2116, snow guard 212, first fixed edge 213, first adjusting tooth 2131, bevel edge 214, bevel edge 215, adjustable clamp 22, second clamping opening 221, second upper clamping edge 2211, second lower clamping edge 2212, buckling flange 2213, second inner side edge 2214, second fixed edge 222, second adjusting tooth 2221, fixing bolt 23. [Specific implementation method]

[0050] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0051] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0052] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0055] Referring to the prior art, the photovoltaic module is rectangular, with a rectangular frame around it, and, as Figure 4 As shown, the conventional frame 11 has an A surface 111, a B surface 112 and a C surface 113, wherein the lower side of the A surface is provided with a mounting groove, the inner side of the B surface is provided with a cavity, wherein the C surface 113 extends to the inner side of the photovoltaic module to form an extended edge 1131. In a photovoltaic system, multiple photovoltaic modules can be arranged in a rectangular array, or only a single photovoltaic module can be provided. The snow shield in the prior art is installed on the front side frame of the photovoltaic module. Since the photovoltaic module is arranged at an angle, the ski slides from top to bottom, so it can also be said to be installed on the lower side frame of the photovoltaic module.

[0056] The existing photovoltaic module frame height ranges from 30 to 35CM. In order to solve the problem that the existing snow protection device cannot adapt to the installation of different frame heights. Figures 1 to 10 As shown, this embodiment provides an adjustable snow-shielding device 200 installed in a photovoltaic system, which includes a snow-shielding clamp 21 and an adjustable clamp 22 fixed together, the snow-shielding clamp 21 is connected to the A side of the frame, the snow-shielding clamp 21 is provided with a snow-shielding plate 212, the adjustable clamp 22 is connected to the extended edge 1131, and a height adjustment structure for adjusting the relative height between the adjustable clamp 22 and the snow-shielding clamp 21 is provided between the snow-shielding clamp 21 and the adjustable clamp 22, so that the snow-shielding device can be fixed to frames of different heights by adjusting the height adjustment structure.

[0057] In the above technical solution, the snow blocking clamp is connected to the A surface of the frame, and the adjustable clamp is connected to the extended edge. Therefore, when the height of the frame changes, it is not necessary to replace the snow blocking device. It is only necessary to adjust the relative height between the snow blocking clamp and the adjustable clamp through the height adjustment structure. After the height adjustment is completed, the snow blocking clamp and the adjustable clamp are fixed together to keep the height unchanged and keep the fixing with the frame. Thus, the snow blocking device can be fixed with frames of different heights through the adjustment of the height adjustment structure.

[0058] In addition, the snow guard can block the snow that slides slowly from the surface of the photovoltaic panels and divides the snow for skiing. It can also break and cut the fast-falling snow and divide the snow that slides down a large area into multiple small pieces of snow, thereby minimizing the damage caused by the sliding of snow.

[0059] As an implementation method, Figures 1 to 3 as well as Figure 6As shown, the height adjustment structure includes a first adjustment tooth 2131 arranged vertically on the snow blocking clamp 21 and a second adjustment tooth 2221 arranged vertically on the adjustable clamp 22, and the first adjustment tooth 2131 and the second adjustment tooth 2221 are engaged. That is, the first adjustment tooth 2131 and the second adjustment tooth 2221 are plugged in, and the snow blocking device is adapted to different heights of the photovoltaic module frame by adjusting the relative position up and down; and after the first adjustment tooth 2131 and the second adjustment tooth 2221 are plugged in, the upper and lower directions are staggered and engaged, and since the snow blocking clamp 21 and the adjustable clamp 22 are fixed together, the upper and lower positions are also reliably fixed at the same time and are not easy to loosen.

[0060] It is understandable that the first adjustment tooth 2131 and the second adjustment tooth 2221 may also be replaced by other similar upper and lower staggered bite structures.

[0061] like Figure 2 As shown, the snow guard clamp 21 is provided with a first clamping opening 211, and the first clamping opening 211 has a first upper clamping edge 2111 and a first lower clamping edge 2113 and a first inner side edge 2112 connecting the first upper clamping edge 2111 and the first lower clamping edge 2113, so as to enclose and form a U-shaped clamping opening structure. The first upper clamping edge 2111 cooperates with the A surface of the frame, the first lower clamping edge 2113 is located at the lower side of the C surface of the frame, the first inner side edge 2112 cooperates with the B surface of the frame, and the snow guard 212 is arranged above the first upper clamping edge. And the frame 11 is located in the height range between the first upper clamping edge 2111 and the first lower clamping edge 2113, and the height can be changed within this range. Of course, even if the height of the frame changes, the first upper clamping edge and the A surface of the frame always maintain a matching relationship. If the height of the frame changes, the gap between its C surface and the first lower clamping edge 2113 will change. Since the adjustable clamp is connected to the extension edge, after the height of the frame changes, the height of the adjustable clamp also changes accordingly.

[0062] like Figure 3 As shown, the adjustable clamp 22 is provided with a second clamping opening 221, and the second clamping opening 22 has a second upper clamping edge 2211 and a second lower clamping edge 2212, and a second inner side edge 2214 connecting the second upper clamping edge 2211 and the second lower clamping edge 2212, which enclose a U-shaped clamping opening structure. The second upper clamping edge 2211 cooperates with the upper side of the extension edge, and the second lower clamping edge 2212 cooperates with the lower side of the extension edge, so that the second clamping opening is buckled with the C-surface extension edge of the photovoltaic module frame, and even if the frame height changes, after the height of the adjustable clamp changes accordingly, after the snow blocking clamp and the adjustable clamp are fixed together, the snow blocking device is effectively fixed to the photovoltaic module frame.

[0063] In order to reliably fix the snow guard clamp 21 and the adjustable clamp 22 after adjusting the relative position up and down by the first adjustment tooth 2131 and the second adjustment tooth 2221, the snow guard clamp 21 is provided with a first fixed edge 213 extending vertically downward from the head end of the first lower clamp edge, and the adjustable clamp is provided with a second fixed edge 222 extending vertically downward from the head end of the second lower clamp edge, the first adjustment tooth 2131 is provided on the first fixed edge, and the second adjustment tooth 2221 is provided on the second fixed edge. Therefore, the height adjustment structure and the frame fixing structure (including the first clamp and the second clamp) are staggered up and down, which facilitates the first adjustment tooth and the second adjustment tooth to be plugged in and adjust the relative position up and down. In addition, a fastener is provided between the first fixed edge 213 and the second fixed edge 222 to fix the first fixed edge and the second fixed edge together after the adjustable clamp adjusts the relative height. While the first fixed side and the second fixed side are fixed together by the fasteners, the snow blocking clamp 21 and the adjustable clamp 22 are also fixed together, so that the snow blocking clamp 21 and the adjustable clamp 22 cooperate to fix the entire snow blocking device 200 and the frame together.

[0064] Preferably, the fastener is a fixing bolt 23, a through hole connected to the fixing bolt is provided on the first fixing edge 213, and a waist-shaped hole connected to the fixing bolt is provided on the second fixing edge 222, and the waist-shaped hole extends up and down. When installing the snow blocking device 200, the fixing bolt is first connected to the through hole and the waist-shaped hole, but the nut is not tightened temporarily, so that the adjustable clamp 22 can be adjusted up and down relative to the snow blocking clamp 21. During the adjustment process, the waist-shaped hole slides up and down along the fixing bolt. After the adjustment is in place, the nut is tightened, so that the height adjustment is convenient.

[0065] It is understandable that the height adjustment structure can also be replaced by other structures. For example, the first adjustment tooth 2131 and the second adjustment tooth 2221 are not set. Corresponding to different heights, gear holes are set on the first fixed edge 213 and the second fixed edge 222, that is, a group of gear holes is set for each height, and the fasteners are passed through the gear holes to fix them.

[0066] like Figure 5As shown, a buckling structure is provided between the first upper clamping edge and the A surface of the frame, specifically including a buckling protrusion 2115 provided on the lower side of the first upper clamping edge, and a buckling groove 1111 provided on the A surface of the frame, and the buckling protrusion 2115 is buckled into the buckling groove 1111. Therefore, after the snow guard clamp and the adjustable clamp are fixed together, the buckling structure is fixed to the frame. Compared with the connection methods such as fasteners, the buckling structure fixing method is more convenient for installation. At the same time, the head end of the first upper clamping edge is provided with an arc-shaped lower flange 2114, which can be matched with the arc-shaped portion of the edge of the A surface. It can be understood that, as a variation, a threaded hole can be provided on the first upper clamping edge, and a locking screw can be connected. The locking screw is screwed into the threaded hole, and then the locking screw is tightened so that the bottom of the locking screw abuts against the A surface of the frame, which also has a fixed connection effect.

[0067] Furthermore, a buffering breaking angle 2116 is provided above the first upper clamping edge. The buffering breaking angle 2116 is provided on the rear side of the snow guard. The buffering breaking angle 2116 is used to absorb the first wave of impact force when the snow slides down and break the ice on the bottom layer of the snow, and is conducive to the subsequent snow guard to separate the ski. The buffering breaking angle extends obliquely upward from the back to the front, so that the buckling structure is buckled more tightly under the impact of the snow. Therefore, the buffering breaking angle has the following three functions: (1) absorbing the first wave of impact force when the snow slides down, so that the impact force is greatly reduced when the snow hits the snow guard; (2) breaking the ice on the bottom layer of the snow; (3) pressing the buckling protrusion and the buckling groove more tightly under the impact of the snow, greatly reducing the phenomenon of the snow guard falling off under the impact of the snow.

[0068] like Figure 7 As shown, the first upper clamping edge 2111 extends to the front side of the first inner side and is connected to the snow guard. The snow guard is arranged obliquely, and the front side of the first lower clamping edge is provided with a hypotenuse 214 extending to the snow guard and connected to the first lower clamping edge. The hypotenuse and the snow guard have the same inclination angle, and the two are connected as a whole. The horizontal extension part, the first inner side 2112 and the hypotenuse 214 are combined to form a right triangle structure, and a triangular cavity is formed inside. A reinforcing rib 215 is provided at the junction of the hypotenuse and the snow guard to increase the strength of the snow guard. The function of the triangular body cavity is to increase the overall strength of the snow guard clamp and to extend the snow guard outward to a suitable position to prevent the snow guard from blocking the photovoltaic module. The function of the reinforcing rib is to increase the strength of the snow guard to prevent the snow guard from being broken when the accumulated snow slides down quickly.

[0069] like Figure 6 As shown, the head end of the second upper clamping edge is provided with a buckle flange 2213, the connecting portion of the extension edge and the frame is provided with a transition portion, and the buckle flange 2213 is buckled with the transition portion. The force when tightening the fixing bolts is evenly transmitted to the photovoltaic module frame cavity, reducing the occurrence of stress concentration.

[0070] Preferably, the snow guard clamp 21 and the adjustable clamp 22 are made of aluminum alloy profiles. Aluminum alloy profiles are extruded to achieve industrialized production, significantly reduce costs, and have high strength, are not easy to rust, and have a long service life.

[0071] It is understandable that for a single photovoltaic module, a snow blocking device 200 is installed in the horizontal middle position of the front side frame of the photovoltaic module. The middle snow blocking device 200 can divide the large pieces of snow sliding down from the photovoltaic module in the middle position, avoiding large pieces of snow falling at the same time and generating excessive impact force, thereby improving safety.

[0072] It is understandable that, according to actual needs and conditions, multiple snow blocking devices 200 can be set laterally along the front side frame of the photovoltaic module to effectively divide large pieces of snow into multiple small pieces of snow to effectively reduce the impact force of the snow sliding down.

[0073] It can be understood that when multiple photovoltaic modules are arranged in a rectangular array, the snow guard device only needs to be installed on the front photovoltaic module. Moreover, among two adjacent photovoltaic modules, the snow guard device 200 can be installed only at the end of one of the photovoltaic modules, so that the two photovoltaic modules share one snow guard device 200.

[0074] In the prior art, the frame of a photovoltaic module is generally within the range of 30cm to 35cm in height. The utility model is an adjustable snow shield installed in a photovoltaic system. The height of the adjustable clamp is adjusted. Since the height between the first upper clamping edge 2111 and the first lower clamping edge 2113 is 35cm, it can be adapted to the frame of a photovoltaic module within the range of 30cm to 35cm in height. Figure 8 As shown, the height of the frame is 35 cm, which is exactly matched with the height net between the first upper clamping edge 2111 and the first lower clamping edge 2113, and the adjustable clamp 22 is in the relatively lowest position. Fig. 9 As shown, the height of the frame is 33 cm, and there is a 2 cm gap between the first lower clamping edge 2113 and the C surface of the frame, and the adjustable clamp 22 is in a relatively middle position. Fig.10 As shown, the height of the frame is 30 cm, and at this time there is a 5 cm gap between the first lower clamping edge 2113 and the C surface of the frame, and the adjustable clamp 22 is in a relatively highest position. Of course, it can be understood that if the height range of the photovoltaic module frame changes outside the height range of 30 cm to 35 cm, the corresponding sizes of the snow guard clamp 21 and the adjustable clamp 22 can be changed to adapt.

[0075] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. An adjustable snow shield installed in a photovoltaic system, the snow shield is installed on the front side frame of the photovoltaic module, the frame has an A surface and a C surface, and the C surface is provided with an extended edge extending inward, characterized in that: The snow-blocking device includes a snow-blocking clamp and an adjustable clamp fixed together, the snow-blocking clamp is connected to the A side of the frame, the snow-blocking clamp is provided with a snow-blocking plate, the adjustable clamp is connected to the extended edge, a height adjustment structure is provided between the snow-blocking clamp and the adjustable clamp, and the height adjustment structure is used to adjust the relative height between the adjustable clamp and the snow-blocking clamp so that the snow-blocking device can be fixed to frames of different heights.

2. The adjustable snow shield installed in a photovoltaic system according to claim 1, characterized in that: The height adjustment structure includes first adjustment teeth arranged vertically on the snow guard clamp and second adjustment teeth arranged vertically on the adjustable clamp, and the first adjustment teeth are engaged with the second adjustment teeth.

3. The adjustable snow shield installed in a photovoltaic system according to claim 2, characterized in that: The snow guard clamp is provided with a first clamping opening, the first clamping opening has a first upper clamping edge and a first lower clamping edge, the first upper clamping edge cooperates with the A surface of the frame, the first lower clamping edge is located on the lower side of the C surface of the frame, and the snow guard is arranged above the first upper clamping edge.

4. The adjustable snow shield installed in a photovoltaic system according to claim 3, characterized in that: The adjustable clamp is provided with a second clamping opening, wherein the second clamping opening has a second upper clamping edge and a second lower clamping edge, wherein the second upper clamping edge cooperates with the upper side of the extension edge, and the second lower clamping edge cooperates with the lower side of the extension edge.

5. The adjustable snow shield installed in a photovoltaic system according to claim 4, characterized in that: The snow guard clamp is provided with a first fixed edge extending vertically downward from the head end of the first lower clamping edge, and the adjustable clamp is provided with a second fixed edge extending vertically downward from the head end of the second lower clamping edge, the first adjusting tooth is provided on the first fixed edge, and the second adjusting tooth is provided on the second fixed edge.

6. The adjustable snow shield installed in a photovoltaic system according to claim 3, characterized in that: A buckling structure is provided between the first upper clamping edge and the frame A surface.

7. An adjustable snow shield installed in a photovoltaic system according to claim 6, characterized in that: A buffering breaking angle is provided above the first upper clamping edge. The buffering breaking angle is provided at the rear side of the snow guard plate and is used for absorbing the impact force when the snow slides down and breaking the ice on the bottom layer of the snow.

8. The adjustable snow shield installed in a photovoltaic system according to claim 7, characterized in that: The mitigation crushing angle extends obliquely upward from the rear to the front, so that the buckling structure is buckled tighter under the impact force of the accumulated snow.

9. The adjustable snow shield installed in a photovoltaic system according to claim 1, characterized in that: A fastener is provided between the snow blocking clamp and the adjustable clamp for fixing the snow blocking clamp and the adjustable clamp together after the adjustable clamp adjusts the relative height.

10. An adjustable snow shield installed in a photovoltaic system according to claim 9, characterized in that: The fastener is a fixing bolt, the snow guard clamp is provided with a through hole connected to the fixing bolt, and the adjustable clamp is provided with a waist-shaped hole connected to the fixing bolt.

11. The adjustable snow shield installed in a photovoltaic system according to claim 3, characterized in that: A first inner side is vertically connected between the first upper clamping edge and the first lower clamping edge, the first upper clamping edge is provided with a horizontal extension portion extending toward the front side of the first inner side and connected to the snow guard, the front side of the first lower clamping edge is provided with a hypotenuse extending to the snow guard and connected to the first lower clamping edge, the horizontal extension portion, the first inner side and the hypotenuse are combined to form a right triangle structure.

12. An adjustable snow shield installed in a photovoltaic system according to claim 11, characterized in that: The junction between the bevel and the snow guard is provided with reinforcing ribs for increasing the strength of the snow guard.

13. The adjustable snow shield installed in a photovoltaic system according to claim 4, characterized in that: A buckle-joined flange is provided at the head end of the second upper clamping edge, a transition portion is provided at the connection portion between the extension edge and the frame, and the buckle-joined flange is buckled with the transition portion.

14. The adjustable snow shield installed in a photovoltaic system according to claim 1, characterized in that: The snow guard clamp and the adjustable clamp are made of aluminum alloy profiles.

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