Snow blocking clamp with dust guiding function

Abstract

The utility model discloses a snow blocking clamp with a dust guiding function, the snow blocking clamp is installed on a frame of a photovoltaic module, the snow blocking clamp comprises a snow blocking part and a buckling part, the snow blocking part is higher than the A surface of the frame of the photovoltaic module, the buckling part is buckled with the frame of the photovoltaic module, and a dust guiding structure is arranged between the snow blocking clamp and the frame of the photovoltaic module. The dust guiding structure is arranged between the snow blocking clamp and the frame of the photovoltaic module and used for receiving dust, sewage and the like entering from the surface of the photovoltaic module and then discharging the dust, the sewage and the like, and the water guiding and dust guiding functions are achieved. In this way, the function of the snow blocking clamp is expanded, multiple purposes are achieved, a dust guide groove does not need to be additionally arranged, and the purpose of saving the overall cost of a photovoltaic power station is achieved.

Description

Technical field

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

[0002] In the residential photovoltaic sector, components of a household photovoltaic system are installed on farmers' roofs at a vertical angle, ranging from 15 to 45 degrees. The greater the angle of the photovoltaic components, the greater the chance of snow sliding off during snowmelt. If large areas of snow slide from a height, they can easily cause significant damage to people and property.

[0003] To prevent snow from sliding down from heights and causing significant damage to people and property, existing technology uses snow guards installed on photovoltaic panels. For example, Chinese utility model patent publication number CN215818036 U discloses a snow guard for photovoltaic panels, comprising a clamp body; the clamp body includes a first clamping edge and a clamping edge assembly, the first clamping edge and the clamping edge assembly forming a first clamping groove for clamping the lower frame of the photovoltaic panel; the clamping edge assembly includes a second clamping edge and a third clamping edge, the second clamping edge and the third clamping edge forming a second clamping groove for clamping the lower edge of the lower frame of the photovoltaic panel. This can block and divide large pieces of snow, addressing the safety risks associated with large pieces of snow sliding down the surface of the photovoltaic panel, ensuring personal safety and preventing property damage.

[0004] In addition, dust on the surface of photovoltaic modules will affect the efficiency of photovoltaic modules in absorbing sunlight, and they are usually cleaned regularly. Of course, rainwater erosion also has a cleaning effect. Since photovoltaic modules are set at an angle, dust and rainwater or mixed sewage will accumulate at the bottom, blocking the bottom of the photovoltaic panel, resulting in the bottom area of ​​the photovoltaic panel not receiving sunlight. Therefore, the bottom side of the photovoltaic module frame is usually installed with a dust guide groove to achieve water and dust guide functions.

[0005] However, in the prior art, the dust guide trough and the snow blocking fixture are separately provided and installed, which increases the overall cost of the photovoltaic power station. [Utility Model Content]

[0006] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a snow shield clamp with a dust guiding function, so as to solve the problem that the prior art snow shield clamp cannot achieve the water guiding and dust guiding functions.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solution: a snow-blocking clamp with a dust-guiding function is installed on the frame of a photovoltaic module. The snow-blocking clamp includes a snow-blocking part and a snap-on part. The snow-blocking part is higher than the A side of the frame of the photovoltaic module. The snap-on part is engaged with the frame of the photovoltaic module. A dust-guiding structure is provided between the snow-blocking clamp and the frame of the photovoltaic module.

[0008] Preferably, the buckle part is provided with an L-shaped clamping leg comprising a vertical edge and a lower clamping edge connected to the bottom end of the vertical edge, and a clamping groove is formed between the clamping leg and the snow blocking part and is clamped with the frame of the photovoltaic module.

[0009] Preferably, the dust guide structure comprises a longitudinal dust guide channel arranged between the upper side wall of the clamping groove and the A surface of the frame, the edge of the upper side wall of the clamping groove is provided with a dust guide edge, the dust guide edge extends beyond the inner side of the A surface of the frame and forms a dust guide inlet between the dust guide edge and the surface of the photovoltaic module, the dust guide inlet is in communication with the longitudinal dust guide channel, and a transverse dust guide channel is arranged between the outer side wall of the clamping groove and the B surface of the frame.

[0010] Preferably, the dust guide edge extends obliquely downward to the surface of the photovoltaic module and is provided with a sawtooth structure; and / or, the upper side wall of the clamping groove is spaced apart in the transverse direction and is provided with a first protrusion, and a longitudinal dust guide channel is formed between adjacent first protrusions.

[0011] Preferably, the upper side wall of the clamping groove is provided with an opening between adjacent first protrusions; and / or, a spacing space is arranged between the first protrusion and the front side wall of the clamping groove.

[0012] Preferably, the front side wall of the clamping groove is provided with a second protrusion extending in the transverse direction, and a transverse dust guide channel is formed between the front side wall of the clamping groove and the B surface of the frame.

[0013] Preferably, the bottom of the snow blocking part is provided with a bottom plate, the upper end of the vertical edge is connected to the middle position of the bottom plate, and upper pressing edges are arranged on the longitudinal sides of the bottom plate, and a clamping groove is formed between the upper pressing edges and the clamping leg.

[0014] Preferably, the snow blocking part is provided with a cavity above the bottom plate.

[0015] Preferably, the buckle part further comprises a clamping elastic piece extending outward from the side opposite to the bottom edge of the vertical edge, and the clamping elastic piece elastically abuts against the B surface of the frame of the second photovoltaic module adjacent in the longitudinal direction.

[0016] Preferably, the snow blocking part is provided with a snow blocking surface extending in an arc shape or obliquely in the longitudinal direction.

[0017] The above technical scheme has the following beneficial effects:

[0018] 1. The snow blocking clamp is provided with a snow blocking part higher than the A surface of the frame, which can block and divide the accumulated snow that slides through, and has a buffering effect; in addition, the buckle part fixes the snow blocking clamp, so that the snow blocking clamp is not easily impacted by the accumulated snow and falls off, and no additional fastening part is needed.

[0019] The dust guide structure is arranged between the snow blocking clamp and the frame of the photovoltaic module, and is used for receiving dust, sewage and the like entering from the surface of the photovoltaic module, and then discharging the dust, sewage and the like, so as to realize the water guide and dust guide functions. In this way, the functions of the snow blocking clamp are expanded, one object is used in multiple ways, and the dust guide groove does not need to be additionally arranged, so that the overall cost of the photovoltaic power station is saved.

[0020] 2. A clamping leg of the buckle part and the snow blocking part form a clamping groove which is clamped with the frame of the first photovoltaic module in the longitudinal direction, wherein the upper side wall of the clamping groove is clamped with the A surface of the frame, and the lower side wall (i.e. the lower clamping edge) of the clamping groove is clamped with the C surface of the frame, so that the clamping groove clamps the frame, and the snow blocking clamp is firmly fixed on the frame of the first photovoltaic module in the longitudinal direction.

[0021] 3. The dust guide inlet, the longitudinal dust guide channel and the transverse dust guide channel form a complete dust guide channel, wherein the dust guide inlet can guide the dust and water into the dust guide inlet, and then the dust and water flow along the longitudinal dust guide channel and the transverse dust guide channel in sequence, and finally are discharged, so as to realize the water guide and dust guide functions.

[0022] 4. The sawtooth structure can form a plurality of small opening dust guide inlets, which are beneficial to guide the dust and water into the dust guide inlet, and also are beneficial to serve as the extension structure of the upper pressing edge, and improve the clamping reliability between the clamping groove and the frame.

[0023] 5. Part of the water and dust can also enter the longitudinal dust guide channel from the opening, and since the first protrusion and the front side wall of the clamping groove are provided with a spacing space, the longitudinal dust guide channel extends longitudinally and can be communicated with the spacing space. Since the front side wall of the clamping groove is provided with the second protrusion which extends in the transverse direction, the transverse dust guide channel can be formed between the front side wall of the clamping groove and the B surface of the frame, and the transverse dust guide channel is communicated with the longitudinal dust guide channel through the spacing space. Since the two ends of the transverse dust guide channel are communicated, the dust and water can finally be discharged from the snow blocking clamp.

[0024] 6. The snow blocking part is used for blocking the accumulated snow and slowing down the sliding speed of the accumulated snow, and the snow blocking surface extends in an arc shape or an inclined manner and faces the accumulated snow which slides upward, so that the accumulated snow is brought greater resistance and the normal sliding of the accumulated snow is not affected.

[0025] 7. The upper pressing edge cooperates with the buckle part to ensure that the snow blocking clamp is reliably fixed in the gap between the two photovoltaic modules in the longitudinal direction, wherein one upper pressing edge cooperates with the clamping leg to form the clamping groove which is clamped with the frame of the first photovoltaic module in the longitudinal direction, and the other upper pressing edge cooperates with the clamping spring to be clamped with the frame of the second photovoltaic module in the longitudinal direction. When the clamping spring is invalid, not only the vertical edge is fitted with the B surface of the frame of the second photovoltaic module in the longitudinal direction under the action of the force, but also the upper pressing edge is fitted with the A surface of the frame of the lower photovoltaic module under the action of the force. Therefore, under the action of the downward pushing force, the vertical edge and the upper pressing edge are fixed with the frame of the second photovoltaic module in the longitudinal direction, so as to prevent the snow blocking clamp from being pulled out.

[0026] 8. The cavity design of the snow guard not only saves materials, but also increases the structural strength of the snow guard, thereby increasing the impact resistance of the snow guard.

[0027] 9. Because the snap-on portion is equipped with a snap-on spring, when installing the snow guard, the snow guard is inserted into the gap between two longitudinally adjacent photovoltaic modules. The snap-on spring contacts the frame B side of the second longitudinally adjacent photovoltaic module, deforming to ensure that the lower snap-on edge can extend into the gap between the two longitudinally adjacent photovoltaic modules. Once the lower snap-on edge reaches below the frame C side of the first longitudinally adjacent photovoltaic module, the snow guard is pushed upward along the longitudinal direction, causing the lower snap-on edge to align with the C side, completing the installation of the snow guard. When subjected to force, such as when skiing, the snap-on spring of the snow guard contacts the frame B side of the second longitudinally adjacent photovoltaic module, generating an upward, diagonal reaction force that prevents the snap-on slot from separating from the frame of the first longitudinally adjacent photovoltaic module. Therefore, the snow guard will not be dislodged from between the two adjacent photovoltaic modules. Even if the snap-on spring fails, the vertical edge will align with the frame B side of the second longitudinally adjacent photovoltaic module under the downward force, preventing the snow guard from being dislodged.

[0028] 10. The function of the snow block is to block the accumulated snow and slow down the speed of the snow sliding down. The snow blocking surface is arc-shaped or extends obliquely, facing the snow sliding upwards. In this way, it not only brings greater resistance to the accumulated snow, but also does not affect the normal sliding of the snow. The snow guide surface is to guide the snow to slide down normally and not accumulate at the snow block clamp.

[0029] 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

[0030] The utility model is further described below with reference to the accompanying drawings:

[0031] Figure 1 This is a structural diagram of an anti-skiing system for a rooftop photovoltaic power station according to the present invention;

[0032] Figure 2 A schematic diagram of the structure in which one of the snow guards is installed between two longitudinally adjacent photovoltaic modules;

[0033] Figure 3 This is a schematic diagram of the structure of one of the snow blocking clamps;

[0034] Figure 4 This is a schematic diagram of the structure of a conventional photovoltaic module frame;

[0035] Figure 5 This is a schematic diagram of the structure of a snow blocking fixture with a dust guiding function;

[0036] Figure 6Structure diagram of another snow blocking clamp with dust guiding function Figure 1 ;

[0037] Figure 7 Structure diagram of another snow blocking clamp with dust guiding function Figure 2 ;

[0038] Figure 8 Structure diagram of another snow blocking clamp with dust guiding function Figure 3 ;

[0039] Figure 9 Structure diagram of a snow blocking clamp installation structure with reinforced fixation

[0040] Figure 10 Structure diagram of a reinforcing fixation

[0041] Figure 11 Structure diagram of another snow blocking clamp installed on the frame of a longitudinal lower photovoltaic module

[0042] Figure 12 Structure diagram of another snow blocking clamp

[0043] The figure marks: photovoltaic module 100, A face 101, B face 102, C face 103, installation groove 104, hollow cavity 105, extension edge 106; snow blocking clamp 1, snow blocking part 11, snow blocking face 111, upper convex arc face 1111, outer convex arc face 1112, vertical edge 1113, snow guiding face 112, bottom plate 113, upper pressing edge 1131, opening 1132, first protrusion 1133, spacing space 1134, transverse dust guiding channel 1135, dust guiding edge 114, sawtooth structure 1141, cavity 115, partition rib 116, buckle part 12, clamping leg 121, vertical edge 1211, lower clamping edge 1212, second protrusion 1213, clamping spring 122, oblique section 1221, bent edge 1222, reinforcing rib 123, limiting clamping edge 124, reinforcing fixation 13, bottom edge 131, first side edge 132, second side edge 133, fixation spring 134, snow blocking plate device 2, house 3, inclined roof 31.

DETAILED DESCRIPTION

[0044] The technical solutions of the embodiments of the present application will be explained and described below in combination with the drawings of the embodiments of the present application. However, the following embodiments are only preferred embodiments of the present application, and are not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[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 present application are merely for the purpose of describing specific embodiments and are not intended to limit the present application. For example, the words "upper", "lower", "horizontal", "vertical", and the like indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application.

[0047] In the present application, unless otherwise explicitly specified and limited, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" 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. "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 defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0049] Referring to the prior art, the photovoltaic module is rectangular, and a rectangular frame is arranged around the photovoltaic module, as shown in Figure 4 The conventional frame has an A surface 101, a B surface 102 and a C surface 103, wherein the A surface is provided with a mounting groove 104 at the lower side for mounting the photovoltaic panel, and the B surface is provided with a hollow cavity 105 at the inner side, wherein the C surface 103 extends to the inner side of the photovoltaic module to form an extended edge 106.

[0050] In a photovoltaic system, a plurality of photovoltaic modules can be arranged in a rectangular array, or only a single photovoltaic module can be arranged, but from the economic point of view, photovoltaic arrays are usually arranged, and the present application is described in the case of arranging photovoltaic arrays. For a roof photovoltaic power station, it is installed on the roof of a house, and the present application is described by taking the example of being installed on the inclined roof 31 of the house 3. The inclined roof 31 here can be a single-side south-facing inclined roof, or a south-north double-side inclined roof, or an east-west side smaller inclined roof, or a naturally formed inclined roof on the roof of the house, or an inclined roof formed after the house is reformed for installing the photovoltaic power station. Here, the south-north side inclined roof is taken as an example for description.

[0051] The prior art snow blocking device is installed on the front side frame of the photovoltaic module at the front side of the photovoltaic array (close to the downward end edge of the inclined roof), and since the photovoltaic module is arranged obliquely, the snow slides down from top to bottom, so it can also be said that it is installed on the lower side frame of the photovoltaic module.

[0052] Referring to Figures 1 to 12 As shown in the figure, the embodiment provides a roof photovoltaic power station anti-snow system. A plurality of photovoltaic modules 100 are arranged in an array on the inclined roof 31. Since the photovoltaic modules are arranged obliquely, the snow slides longitudinally. Therefore, a snow blocking clamp 1 is installed between the two longitudinally adjacent photovoltaic modules 100. In addition, a snow blocking plate device 2 is installed longitudinally below the photovoltaic array.

[0053] In order to install the snow blocking clamp and achieve the snow blocking function, the snow blocking clamp 1 comprises a snow blocking part 11 and a buckle part 12. The snow blocking part 11 is higher than the frame A surface 101 of the photovoltaic module. The buckle part 12 is clamped and fixed between the frames of the two longitudinally adjacent photovoltaic modules. The photovoltaic module located on the upper side in the longitudinal direction is referred to as the first longitudinally adjacent photovoltaic module, and the photovoltaic module located on the lower side in the longitudinal direction is referred to as the second longitudinally adjacent photovoltaic module.

[0054] The above-mentioned snow blocking clamp, since the snow blocking clamp is provided with a snow blocking part higher than the frame A surface, can block and divide the accumulated snow that slides through, and has a buffering effect. In addition, the buckle part fixes the snow blocking clamp, avoiding the snow blocking clamp from being impacted by the accumulated snow and falling off, without the need for additional fasteners. Moreover, since the gap between the two longitudinally adjacent photovoltaic modules is small, it is difficult to install the snow blocking clamp using other fastening structures. The buckle part is used for installation, which is convenient and fast.

[0055] Since the snow blocking clamp is installed between the two longitudinally adjacent photovoltaic modules, multiple snow blocking clamps can be provided in the entire roof photovoltaic power station anti-snow system, forming a structure of multiple-point distribution of snow blocking clamps, for example, at least one snow blocking clamp is installed on the frame below each photovoltaic module in the longitudinal direction. Therefore, not only a structure of multiple snow blocking clamps arranged horizontally is formed in the horizontal direction, but also a structure of snow blocking clamps arranged longitudinally is formed in the longitudinal direction. Therefore, the multiple snow blocking clamps in the longitudinal direction are arranged in a stepped manner, which has a stepped buffering effect, thereby improving the snow blocking and buffering effect. In this way, all the snow blocking clamps can be arranged in a rectangular array, and the snow blocking grid is composed of multiple snow blocking points. After being repeatedly blocked by the snow blocking clamps, the accumulated snow not only becomes smaller in size and finally completely broken, but also has a smaller impact force after the stepped buffering, thereby minimizing the damage caused by the sliding of the accumulated snow.

[0056] It can be understood that all the snow blocking clamps can be regularly arranged in a rectangular array, or can be irregularly arranged in an array, that is, the horizontal position of the snow blocking clamp between the two longitudinally adjacent photovoltaic modules can be changed, and the multiple snow blocking clamps arranged longitudinally can also be staggered in the horizontal direction.

[0057] As one of the embodiments, the buckle part 12 comprises an L-shaped clamping leg 121, which comprises a vertical edge 1211 and a lower clamping edge 1212 connected to the bottom end of the vertical edge, and a clamping groove is formed between the clamping leg 121 and the snow blocking part, which is engaged with the frame of the first longitudinally adjacent photovoltaic module. The upper side wall of the clamping groove is engaged with the A surface of the frame, and the lower side wall (i.e. the lower clamping edge) is engaged with the C surface of the frame, so that the clamping groove clamps the frame, and the snow blocking clamp is firmly fixed on the frame of the first longitudinally adjacent photovoltaic module. The length of the lower clamping edge 1212 extending to the inside of the C surface of the frame does not need to extend to the lower side of the extending edge 106.

[0058] Further, the buckle part 12 further comprises a clamping spring 122 extending outward from the side of the vertical edge opposite to the bottom edge, which is elastically abutted with the B surface of the frame of the second longitudinally adjacent photovoltaic module. The extension distance of the lower clamping edge 1212 and the clamping spring 122 is greater than the gap between the two adjacent photovoltaic modules, so that when the snow blocking clamp is installed, the snow blocking clamp is inserted into the gap between the two longitudinally adjacent photovoltaic modules, the clamping spring 122 is tightly abutted with the B surface of the frame of the second longitudinally adjacent photovoltaic module, and is deformed to ensure that the lower clamping edge 1212 can extend into the gap between the two longitudinally adjacent photovoltaic modules. When the lower clamping edge 1212 reaches below the C surface of the frame of the first longitudinally adjacent photovoltaic module, the snow blocking clamp is pushed obliquely upward along the longitudinal direction, so that the lower clamping edge 1212 is abutted with the C surface, and finally the installation of the snow blocking clamp is completed. When the snow blocking clamp is under stress, for example, when a skier passes by, the clamping spring 122 of the snow blocking clamp is in contact with the B surface of the frame of the second longitudinally adjacent photovoltaic module, and an upwardly oblique reaction force is generated, so that the clamping groove is not easy to separate from the frame of the first longitudinally adjacent photovoltaic module, and thus the snow blocking clamp will not be detached from the two adjacent photovoltaic modules. Even if the clamping spring fails, the vertical edge 1211 will be abutted with the B surface of the frame of the second longitudinally adjacent photovoltaic module under the action of the downward pushing force, and the snow blocking clamp will not be detached.

[0059] Specifically, the clamping spring 122 comprises an obliquely extending oblique section 1221 extending obliquely upward, and a bent edge 1222 connected to the end of the oblique section, which is elastically abutted with the B surface of the frame of the second longitudinally adjacent photovoltaic module. The oblique section extends obliquely upward to facilitate the installation of the snow blocking clamp from top to bottom, and the oblique design is conducive to generating a larger elastic force, and the bent edge can form a larger contact area with the B surface of the frame of the second longitudinally adjacent photovoltaic module, so that the clamping spring can effectively function.

[0060] Preferably, the snow blocking part 11 is provided with a snow blocking surface 111 extending in an arc or obliquely along the longitudinal direction, and a snow guiding surface 112 provided on the side opposite to the snow blocking surface. The snow blocking part functions to block the snow and slow down the sliding speed of the snow, and the snow blocking surface extends in an arc or obliquely to face the snow sliding upwards, so that the snow is brought greater resistance and the normal sliding of the snow is not affected. The snow guiding surface is to guide the snow to slide normally and not to accumulate in the snow blocking clamp. Of course, the shapes of the snow blocking surface and the snow guiding surface can be changed to correspondingly play the good snow blocking and guiding functions.

[0061] It can be understood that the height of the snow blocking part is calculated according to the shadow, and when the shadow is the longest on the winter solstice day, the shadow just does not block the photovoltaic module, so that the snow blocking clamp does not affect the photovoltaic power generation.

[0062] Further, the bottom of the snow blocking part 11 is provided with a bottom plate 113, the upper end of the buckle part 12 is connected to the longitudinal middle position of the bottom plate, and the longitudinal two sides of the bottom plate 113 are correspondingly provided with upper pressing edges 1131 pressed on the frame A surfaces of the two adjacent photovoltaic modules in the longitudinal direction. The upper pressing edges cooperate with the buckle part to ensure that the snow blocking clamp is reliably fixed in the gap between the two adjacent photovoltaic modules in the longitudinal direction, one of the upper pressing edges cooperates with the clamping leg to form a clamping groove and is clamped with the frame of the first photovoltaic module in the longitudinal direction, and the other upper pressing edge cooperates with the clamping spring to be clamped with the frame of the second photovoltaic module in the longitudinal direction. When the clamping spring fails, not only the vertical edge will be attached to the frame B surface of the second photovoltaic module in the longitudinal direction under the action of force, but also the upper pressing edge will be attached to the frame A surface of the lower photovoltaic module under the action of force. Therefore, under the action of the downward force, the vertical edge and the upper pressing edge are fixed with the frame of the second photovoltaic module in the longitudinal direction, so as to prevent the snow blocking clamp from being pulled out.

[0063] Preferably, the snow blocking clamp 1 is made of stainless steel or aluminum alloy profile. The profile is formed by extrusion, which can realize industrialized production, significantly reduce the cost, and has high strength, is not easy to rust, and has long service life. Moreover, the whole body has a certain elasticity, which is convenient for installation between the two adjacent photovoltaic modules in the longitudinal direction.

[0064] Further, the snow blocking part 11 is provided with a cavity 115 above the bottom plate 113. The cavity 115 is formed by the bottom plate 113, the snow blocking surface 111 and the snow guiding surface 112, and the wall thicknesses of the snow blocking surface 111 and the snow guiding surface 112 are substantially consistent. Figure 3 and Figure 6 As shown in the drawings, the shape of the cavity 115 changes correspondingly according to the shape changes of the snow blocking surface 111 and the snow guiding surface 112. In addition, a partition rib 116 can be added in the cavity to divide a plurality of small cavities, so as to not only save materials, but also increase the structural strength of the snow blocking part, thereby increasing the impact resistance of the snow blocking part.

[0065] In addition, as shown in Figure 3 The buckle part 12 is provided with a reinforcing rib 123 connected with the bottom plate 113, and the reinforcing rib and the bottom plate 113 and the vertical edge 1211 form a cavity. The reinforcing rib enhances the overall structural strength of the snow blocking clamp, avoiding the snow blocking part and the buckle connecting part being broken by the rapid sliding of the accumulated snow.

[0066] Of course, it can be understood that the structure of the snow blocking part and the buckle part can also be changed, and only some changes will be described below.

[0067] As one of the embodiments, the snow blocking clamp can also be installed on the frame of the photovoltaic module below in the longitudinal direction. In this way, compared with the snow blocking clamp installed only between the two adjacent photovoltaic modules in the longitudinal direction, one more snow blocking clamp is added, which further improves the snow blocking and buffering effect. However, since there is no other photovoltaic module below in the longitudinal direction, the above-mentioned snow blocking clamp is easy to separate from the frame. In order to ensure the reliable fixation of the snow blocking clamp, a reinforced snow blocking clamp mounting structure is also designed, that is, a reinforcing fixing part 13 is additionally provided. In this way, the buckle part 12 is fixed with the frame, and the reinforcing fixing part 13 can reinforce the fixation of the buckle part 12 and the frame. In this way, the fixation structure of the snow blocking clamp and the frame is reinforced, the snow blocking clamp is not easy to separate from the frame, and the reliable fixation of the snow blocking clamp and the frame is ensured.

[0068] Specifically, the reinforcing fixing part 13 is provided with a U-shaped clamp for fixing the buckle part 12 and the frame, and the U-shaped clamp includes a bottom edge 131 and first and second side edges 132 and 133 provided on opposite sides of the bottom edge, and a fixing spring 134 extending downward from the second side edge 133. The first side edge 132 cooperates with the C-shaped edge of the frame, and the fixing spring 134 elastically contacts the other side of the vertical edge, and sufficient clamping force is generated by the fixing spring to fix the buckle part 12 and the frame together. Moreover, the reinforcing fixing part designed by the U-shaped clamp is also convenient to install, without the need for additional fasteners.

[0069] Of course, it can be understood that the reinforcing fixing part can also be adhesive or screws, etc.

[0070] In addition, for the case of installing the snow blocking clamp on the frame of the photovoltaic module below in the longitudinal direction, the structure of the snow blocking clamp can also be improved accordingly, mainly the structure of the buckle part is improved, such as Figure 11 and Figure 12As shown, the length of the lower clamping edge extending inside the C-face of the frame is extended, and the clamping portion 12 is further provided with a limiting clamping edge 124 which is folded upward from the edge of the lower clamping edge, and is used to be clamped with the edge of the C-face. The limiting clamping edge is used to block the snow blocking clamp from sliding in the longitudinal direction to avoid being separated from the C-face of the frame, and in combination with the structure of the reinforcing fixing member, the first side edge 132 cooperates with the limiting clamping edge 124, and the fixing spring 134 cooperates with the other side of the vertical edge, so as to reliably fix the clamping portion with the frame of the assembly.

[0071] In addition, the relative position of the clamping spring can also be changed, such as Figure 11 and Figure 12 As shown, the clamping spring 122 is arranged on the same side of the bottom edge 1212, and the clamping spring 122 elastically abuts against the B-face of the frame. In this way, after the snow blocking clamp is installed, the limiting clamping edge 124 is clamped with the edge of the C-face under the action of the clamping spring, and at the same time cooperates with the upper pressing edge, so that the snow blocking clamp is clamped with the frame in multiple directions. After the reinforcing fixing member is installed, the clamping spring cooperates with the reinforcing fixing member to achieve double clamping of the snow blocking clamp with the frame, so as to ensure reliable fixation.

[0072] In addition, in order to make the snow blocking clamp have a dust guiding function, the snow blocking clamp is provided with a dust guiding structure to form a snow blocking clamp with a dust guiding function. One embodiment is shown in Figure 5 As shown, the snow blocking clamp 1 and the frame of the photovoltaic assembly are provided with a dust guiding structure. For the snow blocking clamp structure with the snow blocking portion 11 and the clamping portion 12 described above, the clamping groove is provided with a dust guiding structure for receiving dust, sewage and the like entering from the surface of the photovoltaic assembly, and then discharging them.

[0073] Specifically, the dust guiding structure includes a longitudinal dust guiding channel between the upper side wall of the clamping groove and the A-face of the frame, the edge of the upper side wall of the clamping groove is provided with a dust guiding edge 114 which extends beyond the inner side of the A-face of the frame and forms a dust guiding inlet between the dust guiding edge 114 and the surface of the photovoltaic assembly, the dust guiding inlet is in communication with the longitudinal dust guiding channel, and the outer side wall of the clamping groove is provided with a transverse dust guiding channel between the B-face of the frame. The dust guiding inlet, the longitudinal dust guiding channel and the transverse dust guiding channel form a complete dust guiding channel, wherein the dust guiding inlet can guide dust and water into the dust guiding inlet, and then flow along the longitudinal dust guiding channel and the transverse dust guiding channel in turn, and finally be discharged, thereby realizing the functions of guiding water and dust. In this way, the function of the snow blocking clamp is expanded, one object is used for multiple purposes, and the overall cost of the photovoltaic system is saved.

[0074] Among them, the dust guiding edge 114 extends obliquely downward toward the surface of the photovoltaic assembly and is provided with a sawtooth structure 1141. Thus, the dust guiding inlet with multiple small opening structures is formed, which is conducive to guiding dust and water into the dust guiding inlet, and also serves as an extension structure of the upper pressing edge to improve the reliability of the clamping between the clamping groove and the frame.

[0075] In addition, the upper side wall of the clamping groove is provided with first protrusions 1133 distributed in the transverse direction, and a longitudinal dust guide channel is formed between two adjacent first protrusions 1133 in the transverse direction. The upper side wall of the clamping groove is provided with an opening 1132 between two adjacent first protrusions 1133. Part of the water and dust can also enter the longitudinal dust guide channel from the opening. The first protrusions 1133 and the front side wall of the clamping groove are provided with a spacing space 1134, so that the longitudinal dust guide channel extends longitudinally and can communicate with the spacing space. The front side wall of the clamping groove is provided with a second protrusion 1213 extending in the transverse direction, so that a transverse dust guide channel 1135 is formed between the front side wall of the clamping groove and the surface of the frame B, and the transverse dust guide channel 1135 communicates with the longitudinal dust guide channel through the spacing space 1134. The second protrusion 1213 is arranged in connection with the lower clamping edge, so that the transverse dust guide channel is located on the upper side and communicates with the upper spacing space. Since the transverse dust guide channel is communicated at both ends, the water and dust can be finally discharged from the snow blocking clamp.

[0076] Another embodiment of the snow blocking clamp with a dust guide function is shown in Figures 6 to 8 The structure of the snow blocking part is different from that shown in Figure 5 Figure 5 In the embodiment shown in Figures 6 to 8 In the embodiment shown in

[0077] Of course, other structures of the snow blocking clamp can also be changed in many ways, which will not be described here.

[0078] Referring to Figure 9 Although a reinforcing fixing part 13 is added, the structure of the snow blocking clamp remains unchanged, and the dust guide structure can still be provided.

[0079] Referring to Figure 11 and Figure 12 The snow blocking clamp 1 also has a dust guide structure, but the structure of the transverse dust guide channel is changed, in which the clamping spring 122 elastically abuts against the surface of the frame B and forms a transverse dust guide channel.

[0080] It can be understood that a snow blocking clamp can be installed at the transverse middle position of the lower side of the frame of the photovoltaic module, or a snow blocking clamp can be installed at the position close to the transverse end of the lower side of the frame of the photovoltaic module. Of course, according to actual needs, a plurality of snow blocking clamps can be arranged along the transverse direction of the lower side of the frame of the photovoltaic module, so that a large piece of snow is effectively divided into a plurality of small pieces of snow, so as to effectively reduce the impact force of the sliding snow.

[0081] ​As one of the embodiments, the snow blocking plate device 2 comprises a snow blocking shaft extending in the transverse direction and higher than the inclined roof, and a plurality of snow blocking plates installed side by side on the snow blocking shaft in the transverse direction. The snow blocking plate device has an open state and a closed state, and the snow blocking shaft can be driven to rotate by a motor to drive the snow blocking plates to open and close. In the closed state, the space between the snow blocking plates and the inclined roof is closed, and in the open state, the snow blocking shaft drives the snow blocking plates to move, so that the snow blocking plates form a snow discharge space with the inclined roof. The snow accumulated on the photovoltaic array slides off through the snow discharge space.

[0082] The snow blocking plate device described above cooperates with the snow blocking clamp arranged on the photovoltaic array. Since the snow blocking clamp has broken and buffered the accumulated snow, the volume of the snow is reduced, and the impact force is reduced after the step buffering. When the accumulated snow slides off the photovoltaic array, the potential energy formed by the accumulated snow promotes the accumulated snow to continue to slide off. In order to orderly discharge the accumulated snow, the snow blocking plate device is arranged below the photovoltaic array in the longitudinal direction. The snow blocking plate device has an open state and a closed state. In the closed state, the space between the snow blocking plates and the inclined roof is closed, and in the open state, the snow blocking plates form a snow discharge space with the inclined roof. The accumulated snow accumulated on the photovoltaic array slides off through the snow discharge space. Since the snow blocking plate device realizes orderly snow discharge, the impact force is reduced during the snow discharge, and the snow is also broken to a certain extent.

[0083] Therefore, the snow blocking plate device cooperates with the snow blocking clamp to not only break and buffer the snow, but also orderly discharge the snow, so as to reduce the range of the snow impacting the ground and reduce the threat of the snow impacting the life and property of the temporary building and the passerby, and completely solve the safety risk problem caused by the large accumulated snow sliding off the surface of the photovoltaic module.

[0084] 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 above specific embodiments and the drawings. Any modification not deviating from the function and structural principle of the utility model will be included in the scope of the claims.

Claims

1. A snow shield with dust-guiding function, installed on the frame of a photovoltaic module, characterized in that: The snow-blocking clamp includes a snow-blocking portion and a buckle portion. The snow-blocking portion is higher than the frame A surface of the photovoltaic component. The buckle portion is engaged with the frame of the photovoltaic component. A dust-guiding structure is provided between the snow-blocking clamp and the frame of the photovoltaic component.

2. The snow shield according to claim 1, wherein: The buckle portion is provided with an L-shaped clamping foot, which includes a vertical side and a lower clamping edge connected to the bottom end of the vertical side. A clamping groove that engages with the photovoltaic component frame is formed between the clamping foot and the snow-blocking portion, and the dust-guiding structure is provided in the clamping groove.

3. The snow shield according to claim 2, characterized in that: The dust-guiding structure includes a longitudinal dust-guiding channel arranged between the upper side wall of the card slot and the A surface of the frame. The edge of the upper side wall of the card slot is provided with a dust-guiding edge. The dust-guiding edge extends beyond the inner side of the A surface of the frame and forms a dust-guiding entrance between the surface of the photovoltaic module. The dust-guiding entrance is connected to the longitudinal dust-guiding channel. A transverse dust-guiding channel is provided between the outer side wall of the card slot and the B surface of the frame.

4. The snow shield according to claim 3, characterized in that: The dust guiding edge extends obliquely downward toward the surface of the photovoltaic module and is provided with a serrated structure; and / or, first protrusions are distributed at intervals along the transverse direction on the upper side wall of the slot, and a longitudinal dust guiding channel is formed between adjacent first protrusions.

5. The snow shield according to claim 4, characterized in that: The upper side wall of the card slot is provided with an opening between adjacent first protrusions; and / or, a spacing space is provided between the first protrusion and the front side wall of the card slot.

6. The snow guard according to claim 3, characterized in that: The front side wall of the card slot is provided with a second protrusion extending in the transverse direction, and a transverse dust guiding channel is formed between the front side wall of the card slot and the B surface of the frame.

7. The snow guard according to claim 2, characterized in that: A bottom plate is provided at the bottom of the snow guard portion, the upper end of the vertical side is connected to the middle position of the bottom plate, upper pressing edges are correspondingly provided on both longitudinal sides of the bottom plate, and a clamping groove is formed between the upper pressing edge and the clamping foot.

8. The snow guard according to claim 7, characterized in that: The snow shield is provided with a cavity above the bottom plate.

9. The snow guard according to claim 2, characterized in that: The buckle portion further includes a snap-fit ​​spring extending outward from a side of the vertical side opposite to the bottom side, and the snap-fit ​​spring elastically abuts against the frame B surface of the second photovoltaic assembly adjacent in the longitudinal direction.

10. The snow guard according to claim 1, wherein: The snow blocking portion is provided with a snow blocking surface extending in a longitudinal arc or oblique direction.

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