Photovoltaic support

Abstract

The invention relates to a photovoltaic support which can cope with different environmental conditions due to the fact that a component protection unit has different states. For example, when there is no wind or the wind speed is low in the polar day, sundries such as sand and stones are not easy to blow up, so that the photovoltaic module has no risk of being attacked by the sundries, and the module protection unit is in a contraction state, that is, the projection area of the shielding blade on the plane where the light-receiving surface is located does not coincide with the light-receiving surface area, that is, the shielding blade does not shield the light-receiving surface of the photovoltaic module. Sunlight is fully utilized, and the power generation efficiency of the photovoltaic module is ensured. In the polar day and when the wind speed is high, the assembly protection unit is in the stretching-out state, so that the shielding blades can shield at least part of the photovoltaic assembly, the possibility that sundries impact the photovoltaic assembly is reduced, the use reliability of the photovoltaic assembly is guaranteed, and the service life of the photovoltaic assembly is prolonged.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic bracket. Background Art

[0002] Photovoltaic brackets are an important part of solar photovoltaic power generation systems. Their main function is to support and fix photovoltaic components to ensure that photovoltaic panels can face the sun at the best angle to maximize the absorption of solar energy and convert it into electrical energy.

[0003] In the related art, photovoltaic modules installed on photovoltaic brackets may be impacted by external debris, thereby affecting the reliability of the photovoltaic modules. Summary of the invention

[0004] Based on this, it is necessary to provide a photovoltaic bracket to address the problem that existing photovoltaic components are easily impacted by debris and thus affect their reliability in use.

[0005] A photovoltaic bracket, comprising:

[0006] A main structure, wherein the main structure is used to install photovoltaic components;

[0007] A component protection unit is connected to the main structure and is located on one side of the light-receiving surface of the photovoltaic component; the component protection unit includes a mounting seat and a plurality of shielding blades movably connected to the mounting seat;

[0008] When the component protection unit is in a retracted state, the plurality of shielding blades are stacked in sequence, and the projection area of ​​the shielding blades on the plane where the light receiving surface is located does not overlap with the light receiving surface area;

[0009] When the component protection unit is in the extended state, the plurality of shielding blades are sequentially arranged along the light receiving surface, and the projection areas of the shielding blades on the plane where the light receiving surface is located overlap with at least a portion of the light receiving surface area.

[0010] In one of the embodiments, in the first working condition, the component protection unit is in the extended state, and the shielding blades are at an angle to the light receiving surface, and there is a gap between two adjacent shielding blades, and the gap is used for light to pass through to irradiate the photovoltaic component;

[0011] In the second working condition, the component protection unit is in the extended state, and the shielding blades are parallel to the light-receiving surface, and two adjacent shielding blades are spliced ​​to shield the light-receiving surface.

[0012] In one of the embodiments, two connecting rods are arranged between two adjacent shielding blades, each of the connecting rods is rotationally connected to the blade shaft of the shielding blade on the corresponding side, and the two connecting rods are rotationally connected; when the component protection unit is in the retracted state, the extension directions of the two connecting rods between the two adjacent shielding blades intersect; when the component protection unit is in the extended state, the extension directions of the two connecting rods between the two adjacent shielding blades are parallel.

[0013] In one embodiment, the component protection unit includes a telescopic drive member installed on the mounting seat, and the blade shaft of the shielding blade is connected to the telescopic drive member, and the telescopic drive member is used to drive the blade shaft to move so that the component protection unit switches between the retracted state and the extended state.

[0014] In one of the embodiments, the mounting seat is provided with a slide rail, a slider is slidably connected to the slide rail, and the slider is connected to the telescopic driving member; the blade shaft of the shielding blade is connected to the slider and moves synchronously with the slider.

[0015] In one embodiment, the component protection unit includes a rotating drive member mounted on the mounting seat and a transmission wheel connected to the rotating drive member, and the transmission wheel is in transmission connection with the shielding blade; the rotating drive member is used to drive the transmission wheel to rotate so as to drive the shielding blade to deflect around the blade axis.

[0016] In one of the embodiments, the component protection unit further includes a transmission rope wound around the transmission wheel, the transmission rope is connected to the shielding blade, and the transmission wheel drives the shielding blade to deflect via the transmission rope.

[0017] In one of the embodiments, the transmission rope is fixedly connected to the blade portion of the shielding blade; the transmission wheel is provided with bosses on both sides along its radial direction, and the transmission rope is fixedly connected to the bosses; the connecting line direction of the two bosses is parallel to the extension direction of the shielding blade.

[0018] In one of the embodiments, the photovoltaic support further includes an environmental information collection unit, and the environmental information collection unit is used to feed back the acquired environmental information to the component protection unit, so that the component protection unit switches between the contracted state and the extended state.

[0019] In one embodiment, the main structure includes a plurality of front columns, a plurality of rear columns and a plurality of purlins, and the front columns and the rear columns are respectively arranged at both ends of the photovoltaic module; one of the purlins is connected between the photovoltaic module and the front columns, and one of the purlins is connected between the photovoltaic module and the rear columns.

[0020] In one embodiment, the main structure further includes a plurality of inclined beams, one end of each inclined beam is connected between the front column and the purlin, and the other end of each inclined beam is connected between the rear column and the purlin.

[0021] In one embodiment, the main structure further includes a purlin connector and a locking member, wherein the first end face of the purlin connector abuts against the purlin, the second end face of the purlin connector abuts against the diagonal beam, and the locking member is used to lock the purlin connector and the diagonal beam.

[0022] In one embodiment, the first end surface of the purlin connector and one of the purlins are provided with a first buckle, and the other is provided with a first slot for engaging with the first buckle; and / or,

[0023] A second buckle is provided on the second end surface of the purlin connecting member and one of the oblique beams, and a second buckle groove is provided on the other end surface for buckling with the second buckle.

[0024] In one embodiment, the main structure further includes a front diagonal brace and a rear diagonal brace, wherein one end of the front diagonal brace is connected to the front column, and the other end of the front diagonal brace is connected to the diagonal beam; one end of the rear diagonal brace is connected to the rear column, and the other end of the rear diagonal brace is connected to the diagonal beam.

[0025] In one embodiment, the main structure further includes a front column foot and a first fastener, the front column foot is provided with a first mounting groove, the front column and the front diagonal brace are both clamped in the first mounting groove, and the front column and the front diagonal brace are respectively fastened to the front column foot by the first fastener; and / or,

[0026] The main structure also includes a rear column foot and a second fastener, the rear column foot is provided with a second mounting groove, the rear column and the rear diagonal brace are both clamped in the second mounting groove, and the rear column and the rear diagonal brace are respectively fastened to the rear column foot through the second fastener.

[0027] In one embodiment, the main structure further includes a front beam column connecting piece and a third fastener, the front beam column connecting piece is provided with a third mounting groove, the front column and the oblique beam are both clamped in the third mounting groove, and the front column and the oblique beam are respectively fastened to the front beam column connecting piece by the third fastener; and / or,

[0028] The main structure further includes a rear beam column connecting piece and a fourth fastener, the rear beam column connecting piece is provided with a fourth mounting groove, the rear column and the oblique beam are both clamped in the fourth mounting groove, and the rear column and the oblique beam are respectively fastened to the rear beam column connecting piece by the fourth fastener; and / or,

[0029] The main structure further includes a beam support connector and a fifth fastener, the beam support connector is provided with a fifth mounting groove, the oblique beam, the front oblique brace and the rear oblique brace are all clamped in the fifth mounting groove, and the oblique beam, the front oblique brace and the rear oblique brace are respectively fastened to the beam support connector by the fifth fastener; and / or,

[0030] The main structure also includes two back tie rods, and the two back tie rods are cross-connected between the two rear pillars.

[0031] The above photovoltaic bracket can cope with different environmental conditions because the component protection unit has different states. For example, during polar day and when there is no wind or the wind speed is low, sand and other debris are not easily blown up, so the photovoltaic component is not at risk of being attacked by debris. The component protection unit is in a retracted state, that is, the projection area of ​​the shielding blade on the plane where the light-receiving surface is located does not overlap with the light-receiving surface area, that is, the shielding blade will not block the light-receiving surface of the photovoltaic component, thereby making full use of sunlight and ensuring the power generation efficiency of the photovoltaic component; during polar day and when the wind speed is high, the component protection unit is in an extended state, so that the shielding blade can shield at least part of the photovoltaic component, reducing the possibility of debris impacting the photovoltaic component, thereby ensuring the reliability of the use of the photovoltaic component and improving the service life of the photovoltaic component. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic diagram of a component protection unit in a photovoltaic bracket provided in an embodiment of the present application in an extended state.

[0033] FIG. 2 is a schematic diagram of the hidden component protection unit of the photovoltaic support shown in FIG. 1 .

[0034] FIG. 3 is a schematic diagram of a component protection unit in the photovoltaic support shown in FIG. 1 .

[0035] FIG. 4 is a partial schematic diagram of a component protection unit in the photovoltaic support shown in FIG. 3 .

[0036] FIG. 5 is a partial schematic diagram of a component protection unit in the photovoltaic support shown in FIG. 3 .

[0037] FIG. 6 is a schematic diagram of the component protection unit in the photovoltaic support shown in FIG. 3 being in a retracted state.

[0038] FIG. 7 is a side view of the component protection unit in the photovoltaic support shown in FIG. 6 .

[0039] FIG. 8 is a side view of the component protection unit in the photovoltaic support shown in FIG. 7 in an extended state.

[0040] FIG. 9 is a side view of the component protection unit in the photovoltaic support shown in FIG. 7 in an extended state.

[0041] FIG. 10 is a side view of the component protection unit in the photovoltaic support shown in FIG. 9 at another deflection angle.

[0042] FIG. 11 is a schematic diagram of the component protection unit in the photovoltaic support shown in FIG. 9 in a retracted state.

[0043] FIG. 12 is a schematic diagram of the component protection unit in the photovoltaic support shown in FIG. 11 being in a first working condition.

[0044] FIG. 13 is a schematic diagram of the component protection unit in the photovoltaic support shown in FIG. 11 being in a second working condition.

[0045] FIG. 14 is a schematic diagram of the main structure of the photovoltaic support shown in FIG. 1 .

[0046] FIG. 15 is a partial schematic diagram of the main structure of the photovoltaic support shown in FIG. 14 .

[0047] FIG. 16 is a partial schematic diagram of the main structure of the photovoltaic support shown in FIG. 14 .

[0048] FIG. 17 is a partial schematic diagram of the main structure of the photovoltaic support shown in FIG. 14 .

[0049] Figure numbers: 10, photovoltaic bracket; 100, main structure; 101, counterweight; 111, front column; 112, rear column; 120, purlin; 130, diagonal beam; 141, front diagonal brace; 142, rear diagonal brace; 151, purlin beam connector; 1511, first buckle; 1512, second buckle; 152, locking member; 161, front column foot; 162, first fastener; 163, rear column foot; 164, second fastener; 171, front beam column connector; 172, third fastener; 173, rear beam column connector; 174, fourth fastener Part; 181, beam support connector; 182, fifth fastener; 191, back pull rod; 200, component protection unit; 210, mounting seat; 211, slide rail; 212, slider; 213, telescopic slot; 220, shielding blade; 221, blade shaft; 222, blade part; 230, connecting rod; 241, telescopic drive member; 242, first transmission rod; 251, rotating drive member; 252, transmission wheel; 253, transmission rope; 254, boss; 255, second transmission rod; 300, environmental information collection unit; 1000, photovoltaic module. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In addition, if the terms "first" or "second" appear, these terms 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0056] Antarctica is the last pure land on Earth. When humans conduct expeditions in Antarctica, they should try to minimize damage to Antarctica. Photovoltaic power generation, as a representative of clean energy, can better provide power for Antarctic scientific research. However, the low temperature, high wind pressure, high corrosion, and wind-blown sand and gravel environment in Antarctica pose more severe challenges to photovoltaic brackets. The wind pressure in polar regions is high, and strong winds often blow up sand and gravel, which can easily break the glass of the components, thereby affecting the power generation reliability of photovoltaic components.

[0057] Based on this, an embodiment of the present application provides a photovoltaic bracket that can solve the above problems. The photovoltaic bracket provided in the embodiment of the present application will be described in detail below in conjunction with the accompanying drawings.

[0058] 1, 5, 6, 11 to 13, a photovoltaic bracket 10 provided in an embodiment of the present application includes a main structure 100 and a component protection unit 200; the main structure 100 is used to install a photovoltaic component 1000; the component protection unit 200 is connected to the main structure 100 and is located on one side of the light-receiving surface of the photovoltaic component 1000; the component protection unit 200 includes a mounting seat 210 and a plurality of shielding blades 220 movably connected to the mounting seat 210; as shown in FIG11, when the component protection unit 200 is in a retracted state, the plurality of shielding blades 220 are stacked in sequence, and the projection area of ​​the shielding blades 220 on the plane where the light-receiving surface is located does not overlap with the light-receiving surface area; as shown in FIG12 or FIG13, when the component protection unit 200 is in an extended state, the plurality of shielding blades 220 are arranged in sequence along the light-receiving surface, and the projection area of ​​the shielding blades 220 on the plane where the light-receiving surface is located overlaps with at least part of the light-receiving surface area.

[0059] The photovoltaic bracket 10 is installed in the polar regions as an example. Since the component protection unit 200 has different states, it can cope with different environmental conditions. For example, in the polar day and when there is no wind or the wind speed is low, sand and other debris are not easily blown up, so the photovoltaic component 1000 is not at risk of being attacked by debris. The component protection unit 200 is in a retracted state, that is, the projection area of ​​the shielding blade 220 on the plane where the light-receiving surface is located does not overlap with the light-receiving surface area, that is, the shielding blade 220 will not block the light-receiving surface of the photovoltaic component 1000, thereby making full use of sunlight and ensuring the power generation efficiency of the photovoltaic component 1000; in the polar day and when the wind speed is high, the component protection unit 200 is in an extended state, so that the shielding blade 220 can shield at least part of the photovoltaic component 1000, reducing the possibility of debris impacting the photovoltaic component 1000, thereby ensuring the reliability of the use of the photovoltaic component 1000 and improving the service life of the photovoltaic component 1000. The mounting seat 210 is provided with a telescopic slot 213 for the blade shaft 221 of the shielding blade 220 to pass through. The photovoltaic module 1000 can be a double-sided power generation module, and its backlight surface can effectively absorb sunlight reflected by the snow to increase power generation.

[0060] Referring to FIG. 9, FIG. 10, and FIG. 12, in one embodiment, under a first working condition, such as during polar day and when the wind and sand are small, the component protection unit 200 is in an extended state, and the extension direction of the shielding blade 220 is at an angle to the extension direction of the light-receiving surface, wherein the projection area of ​​the shielding blade 220 on the light-receiving surface partially overlaps with the light-receiving surface area. In this way, even if a small amount of wind and sand is blown up from the ground, the wind and sand will first contact the shielding blade 220, and the shielding blade 220 will shield the wind and sand, thereby reducing the possibility of wind and sand impacting the glass of the photovoltaic component 1000. At the same time, since there is a gap between two adjacent shielding blades 220, light can pass through the gap to irradiate the photovoltaic component 1000, thereby ensuring the power generation effect.

[0061] Referring to FIG. 13 , in the second working condition, for example, in severe weather at polar night, the component protection unit 200 is in an extended state, and two adjacent shielding blades 220 are spliced ​​to shield the light-receiving surface. Since there is no light at this time, the shielding blades 220 shield the light-receiving surface to reduce the possibility of debris impacting the photovoltaic component 1000. Furthermore, the extension direction of the shielding blades 220 can be parallel to the extension direction of the light-receiving surface, and the multiple shielding blades 220 are in a straight line shape. The collection of the projection areas of the multiple shielding blades 220 on the light-receiving surface completely overlaps with the light-receiving surface area, protecting the light-receiving surface from impact.

[0062] Referring to Figures 7 to 10, in one embodiment, two connecting rods 230 are arranged between two adjacent shielding blades 220, each connecting rod 230 is rotationally connected to the blade shaft 221 of the shielding blade 220 on the corresponding side, and the two connecting rods 230 are rotationally connected; when the component protection unit 200 is in a retracted state, the extension directions of the two connecting rods 230 between the two adjacent shielding blades 220 intersect; when the component protection unit 200 is in an extended state, the extension directions of the two connecting rods 230 between the two adjacent shielding blades 220 are parallel. Since the connecting rod 230 is rotationally connected to the blade shaft 221 of the shielding blade 220, and the two connecting rods 230 are also rotationally connected to each other, when the outermost shielding blade 220 contracts, that is, when the leftmost shielding blade 220 moves to the right, the connection point of the two connecting rods 230 will move down until the left shielding blade 220 is stacked and adjacent to its adjacent shielding blade 220, and this is repeated until multiple shielding blades 220 are stacked together, so that the light-receiving surface of the photovoltaic module 1000 is completely exposed. Specifically, the connecting rod 230 is hinged to the shielding blade 220, and the two connecting rods 230 are hinged.

[0063] Referring to FIGS. 3 to 6 , in one embodiment, the component protection unit 200 includes a telescopic driving member 241 mounted on the mounting seat 210, and the blade shaft 221 of the shielding blade 220 is connected to the telescopic driving member 241. The telescopic driving member 241 is used to drive the blade shaft 221 to move along the extension direction of the light-receiving surface, that is, the tilt direction of the photovoltaic component 1000. For example, in FIG. 5 , the extension direction of the light-receiving surface is the left-right direction. When the telescopic driving member 241 drives the blade shaft 221 to move rightward, a plurality of shielding blades 220 will be stacked together in sequence, so that the component protection unit 200 is in a retracted state, that is, the light-receiving surface of the photovoltaic component 1000 is completely exposed and will not be shielded by the shielding blades 220. As shown in Figure 6, when the telescopic drive member 241 drives the blade shaft 221 to move to the left, multiple shielding blades 220 extend out in sequence and are located on the light-receiving side of the photovoltaic component 1000 to reduce the risk of debris impacting the photovoltaic component 1000, thereby providing a certain degree of protection for the photovoltaic component 1000.

[0064] Specifically, in this embodiment, only one telescopic drive member 241 is required, and the telescopic drive member 241 is located at the highest point of the main structure 100. The shielding blade 220 on the side away from the telescopic drive member 241 is connected to the telescopic drive member 241, that is, the shielding blade 220 at the lowest point is connected to the telescopic drive member 241. Since there is a connection relationship between the multiple shielding blades 220, the shielding blade 220 at the lowest point can sequentially drive the other shielding blades 220 to extend or retract. In this way, the cost of the component protection unit 200 is lower and the control is simpler. In other embodiments, a telescopic drive member can also be provided for each shielding blade to extend or retract the shielding blade.

[0065] Referring to FIGS. 3 to 6 , in one embodiment, the mounting seat 210 is provided with a slide rail 211, and a slider 212 is slidably connected to the slide rail 211, and the slider 212 is connected to the telescopic driving member 241; a blade shaft 221 of one shielding blade 220 is connected to the slider 212, and the slider 212 is driven by the telescopic driving member 241 to move along the tilt direction of the photovoltaic module 1000, driving multiple shielding blades 220 to move, and realizing the extension or retraction of the shielding blade 220, while guiding the moving direction of the shielding blade 220, so that its movement is more stable and controllable, and the reliability of the state switching of the component protection unit 200 is improved. By connecting the slider 212 to the output end of the telescopic driving member 241, the shielding blade 220 is driven to move by the slider 212, so that the risk of interference between the telescopic driving member 241 and the shielding blade 220 can be reduced. Among them, the telescopic driving member 241 can be a linear motor or an electric push rod.

[0066] Referring to FIGS. 4 to 6 , in one embodiment, the component protection unit 200 includes a rotating driving member 251 mounted on the mounting seat 210 and a transmission wheel 252 connected to the rotating driving member 251, and the transmission wheel 252 is connected to the blade shaft 221 of the shielding blade 220; the rotating driving member 251 is used to drive the transmission wheel 252 to rotate, so as to drive the shielding blade 220 to deflect around the blade shaft 221. Specifically in this embodiment, a ring-shaped transmission rope 253 is wound around the transmission wheel 252, and the two are connected. In this way, when the transmission wheel 252 is driven to rotate by the telescopic driving member 241, the rotational power will be transmitted to the transmission rope 253, and then the shielding blade 220 is driven to deflect around the blade shaft 221 through the transmission rope 253, thereby changing the angle between the shielding blade 220 and the light-receiving surface of the photovoltaic component 1000.

[0067] Referring to FIGS. 9 and 10 , further, the upper section of the annular transmission rope 253 is fixedly connected to the upper blade portion 222 of each shielding blade 220, and the lower section of the annular transmission rope 253 is fixedly connected to the lower blade portion 222 of each shielding blade 220. Through this arrangement, the synchronization of the deflection of multiple shielding blades 220 is ensured, making the control more reliable and efficient. At the same time, the transmission wheel 252 is provided with bosses 254 on both sides along its radial direction, and the transmission rope 253 is fixedly connected to the bosses 254, that is, the transmission wheel 252 and the transmission rope 253 are relatively stationary. When the transmission wheel 252 rotates clockwise from the state shown in FIG. 9 to the state shown in FIG. 10, the transmission wheel 252 provides traction to the transmission rope 253, so that the lower blade portion 222 moves left and the upper blade portion 222 moves right, so that the deflection angle of the shielding blade 220 changes. Further, the connection direction of the two bosses 254 is parallel to the extension direction of the shielding blade 220. In this way, when the shielding blade 220 is at different deflection angles, the boss 254 is at different positions, so that the position where the transmission rope 253 is overlapped on the transmission wheel 252 is different, that is, the distance between the upper and lower sections of the transmission rope 253 changes, thereby adapting to the change in the deflection angle of the shielding blade 220.

[0068] As shown in Fig. 3 and Fig. 4, in one embodiment, a plurality of photovoltaic modules 1000 are arranged side by side, and each photovoltaic module 1000 is correspondingly provided with a group of shielding blades 220, and adjacent module protection units 200 are connected through a first transmission rod 242 and a second transmission rod 255 to realize the transmission of telescopic power and rotational power. Specifically, the first transmission rod 242 is connected to the telescopic driving member 241, and the telescopic power is transmitted to the corresponding group of shielding blades 220 through the first transmission rod 242; the second transmission rod 255 is connected to the rotational driving member 251, and the rotational power is transmitted to the corresponding group of transmission wheels 252 through the second transmission rod 255.

[0069] In other embodiments, in addition to the transmission rope being fixedly connected to the blade portion of the shielding blade, the transmission rope may also be connected to the blade shaft of the shielding blade. In this way, the transmission coordination between the transmission rope and the blade shaft may refer to belt drive or sprocket chain drive.

[0070] Referring to FIG. 1 , in one embodiment, the photovoltaic support 10 further includes an environmental information collection unit 300, which is used to feed back the acquired environmental information to the component protection unit 200, so that the component protection unit 200 switches between the retracted state and the extended state. Specifically, the environmental information collection unit 300 may include a wind speed and direction detector, which collects the current wind speed and direction information, so that the component protection unit 200 is in different states. For example, when the wind speed is high, the photovoltaic component 1000 is at risk of being attacked by sand and stones blown up by the strong wind. At this time, the shielding blades 220 in the component protection unit 200 are extended to shield the photovoltaic component 1000, blocking the direct attack of the blown sand and stones on the photovoltaic component 1000. When the wind speed is low, the photovoltaic component 1000 is not at risk of being attacked by sand and stones blown up by the strong wind. At this time, the shielding blades 220 in the component protection unit 200 are retracted, and there is no shielding above the photovoltaic component 1000, ensuring the power generation effect. The wind speed and direction detector may be an ultrasonic wind speed and direction sensor. Furthermore, the environmental information collection unit 300 may also include a photosensitive sensor, which senses changes in light intensity and determines whether it is polar day weather or polar night weather.

[0071] Referring to FIG. 14 , in one embodiment, the main structure 100 of the photovoltaic support 10 includes a plurality of front columns 111, a plurality of rear columns 112, and a plurality of purlins 120. The front columns 111 and the rear columns 112 are respectively arranged at both ends of the photovoltaic module 1000; one of the purlins 120 is connected between the photovoltaic module 1000 and the front columns 111, and one of the purlins 120 is connected between the photovoltaic module 1000 and the rear columns 112. The photovoltaic module 1000 is fixed by the purlins 120, and supported by the front columns 111 and the rear columns 112. It can be understood that the extension heights of the front column 111 and the rear column 112 are different, so that the photovoltaic module 1000 installed on the photovoltaic bracket 10 has a certain tilt angle, ensuring that its light-receiving surface faces the sun, thereby ensuring the power generation effect; at the same time, the large tilt angle structure can also make snow slide off the photovoltaic module 1000 quickly, avoiding the accumulation of snow affecting the power generation effect. The long side of the photovoltaic module 1000 coincides with the position of the purlin 120, so the purlin 120 will not block the backlight surface of the photovoltaic module 1000, ensuring that the solar energy reflected by the snow is irradiated to the photovoltaic module 1000 to the maximum extent.

[0072] 14 , the main structure 100 further includes two back tie rods 191, which are cross-connected between the two rear uprights 112. The two back tie rods 191 form a triangular structure, thereby improving the use stability and support effect of the main structure 100.

[0073] Referring to FIG. 14 and FIG. 15 , in one embodiment, the main structure 100 further includes a plurality of inclined beams 130, one end of the inclined beam 130 is connected between the front column 111 and the purlin 120, and the other end of the inclined beam 130 is connected between the rear column 112 and the purlin 120. The cross arrangement of the inclined beams 130 and the purlin 120 improves the lateral strength of the photovoltaic bracket 10.

[0074] Referring to FIG. 16 , in one embodiment, the main structure 100 further includes a purlin connector 151 and a locking member 152. The first end face of the purlin connector 151 abuts against the purlin 120, and the second end face of the purlin connector 151 abuts against the inclined beam 130. Through this arrangement, the purlin 120 and the inclined beam 130 are initially limited and fixed. At the same time, the locking member 152 is inserted through the purlin connector 151 and the inclined beam 130, thereby locking the purlin connector 151 and the inclined beam 130. Among them, a first buckle 1511 is protrudingly provided on one side of the first end face facing the purlin 120, and a first slot is correspondingly provided on the purlin 120. Through the clamping cooperation between the first buckle 1511 and the first slot, the limiting and fixing effect of the purlin 120 is further improved. Furthermore, a second buckle 1512 is provided on the side of the second end surface facing the oblique beam 130, and a second clamping groove for clamping with the second buckle 1512 is correspondingly provided on the oblique beam 130. Through the clamping cooperation of the two, the fixing effect of the oblique beam 130 is further improved, thereby improving the connection effect between the oblique beam 130 and the purlin 120. In this embodiment, three second buckles 1512 are provided, and three second clamping grooves are correspondingly provided. In other embodiments, the setting positions of the first buckle and the first clamping groove can be interchangeable, and the setting positions of the second buckle and the second clamping groove can be interchangeable. The locking member 152 can be a bolt, etc.

[0075] Referring to FIG. 15 , in one embodiment, the main structure 100 further includes a front beam column connection member 171 and a third fastener 172, the front beam column connection member 171 is provided with a third installation groove, the front column 111 and the inclined beam 130 are both clamped in the third installation groove, and the front column 111 and the inclined beam 130 are respectively fastened to the front beam column connection member 171 through the third fastener 172. Further, the main structure 100 further includes a rear beam column connection member 173 and a fourth fastener 174, the rear beam column connection member 173 is provided with a fourth installation groove, the rear column 112 and the inclined beam 130 are both clamped in the fourth installation groove, and the rear column 112 and the inclined beam 130 are respectively fastened to the rear beam column connection member 173 through the fourth fastener 174.

[0076] Referring to FIG. 14 and FIG. 15 , in one embodiment, the main structure 100 further includes a front diagonal brace 141 and a rear diagonal brace 142, one end of the front diagonal brace 141 is connected to the front column 111, and the other end of the front diagonal brace 141 is connected to the diagonal beam 130; one end of the rear diagonal brace 142 is connected to the rear column 112, and the other end of the rear diagonal brace 142 is connected to the diagonal beam 130. By providing the front diagonal brace 141 and the rear diagonal brace 142, the support strength of the photovoltaic module 1000 is further improved. Among them, the front diagonal brace and the rear diagonal brace 142 intersect and connect to the diagonal beam 130, so that the front diagonal brace 141 and the rear diagonal brace 142 form a triangular structure, which improves the stability of the main structure 100.

[0077] Specifically, referring to FIGS. 15 and 17 , the main structure 100 further includes a front column foot 161 and a first fastener 162. The front column foot 161 is provided with a first mounting groove, the front column 111 and the front diagonal brace 141 are both clamped in the first mounting groove, and the front column 111 and the front diagonal brace 141 are respectively fastened to the front column foot 161 by the first fastener 162. Further, the main structure 100 further includes a rear column foot 163 and a second fastener 164. The rear column foot 163 is provided with a second mounting groove, the rear column 112 and the rear diagonal brace 142 are both clamped in the second mounting groove, and the rear column 112 and the rear diagonal brace 142 are respectively fastened to the rear column foot 163 by the second fastener 164. It can be understood that the main structure 100 also includes a counterweight block 101 , and the front column foot 161 and the rear column foot 163 are fixed on the counterweight block 101 , so that the weight of the photovoltaic bracket is increased by the counterweight block 101 .

[0078] Further, referring to FIG. 15 and FIG. 17 , the main structure 100 further includes a beam support connector 181 and a fifth fastener 182. The beam support connector 181 is provided with a fifth installation slot. The inclined beam 130, the front diagonal support 141 and the rear diagonal support 142 are all clamped in the fifth installation slot. The fifth fastener 182 is respectively provided between the inclined beam 130 and the beam support connector 181, between the front diagonal support 141 and the beam support connector 181, and between the rear diagonal support 142 and the beam support connector 181. The fifth fastener 182 improves the connection effect between each other. Among them, the purlin connector 151, the beam support connector 181, the front beam column connector 171 and the rear beam column connector 173 can be in the form of a clamp, and each fastener can be a bolt. The number of bolts can be set according to actual needs.

[0079] By adopting the main structure 100, the front column 111, the rear column 112, the front diagonal brace 141, the rear diagonal brace 142 and the diagonal beam 130 can be pre-assembled, and then bolted after being transported to the polar regions, thereby improving the efficiency of transporting the components to the site for installation. Among them, the various components in the main structure 100 can be made of aluminum alloy, and the surface is anodized to form a dense oxide film on the surface of the parts to protect the parts from atmospheric corrosion; and the mechanical properties of the aluminum alloy material under low temperature conditions are better than those of conventional steel, and the lower the temperature, the better the mechanical properties.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A photovoltaic bracket, characterized in that: The photovoltaic support comprises: A main structure (100), wherein the main structure (100) is used to install a photovoltaic module (1000); A component protection unit (200) connected to the main structure (100) and located on one side of the light-receiving surface of the photovoltaic component (1000); the component protection unit (200) comprises a mounting seat (210) and a plurality of shielding blades (220) movably connected to the mounting seat (210); When the component protection unit (200) is in a retracted state, the plurality of shielding blades (220) are stacked in sequence, and the projection area of ​​the shielding blades (220) on the plane where the light receiving surface is located does not overlap with the area of ​​the light receiving surface; When the component protection unit (200) is in an extended state, the plurality of shielding blades (220) are arranged in sequence along the light receiving surface, and the projection area of ​​the shielding blades (220) on the plane where the light receiving surface is located overlaps at least partly with the area of ​​the light receiving surface.

2. The photovoltaic bracket according to claim 1, characterized in that: In a first working condition, the component protection unit (200) is in the extended state, the shielding blades (220) form an angle with the light receiving surface, and two adjacent shielding blades (220) have a gap, the gap being used for light to pass through to irradiate the photovoltaic component (1000); In the second working condition, the component protection unit (200) is in the extended state, the shielding blades (220) are parallel to the light receiving surface, and two adjacent shielding blades (220) are spliced ​​to shield the light receiving surface.

3. The photovoltaic bracket according to claim 1, characterized in that: Two connecting rods (230) are arranged between two adjacent shielding blades (220), each connecting rod (230) is rotationally connected to the blade shaft (221) of the shielding blade (220) on the corresponding side, and the two connecting rods (230) are rotationally connected; When the component protection unit (200) is in the retracted state, the extension directions of the two connecting rods (230) between two adjacent shielding blades (220) intersect; when the component protection unit (200) is in the extended state, the extension directions of the two connecting rods (230) between two adjacent shielding blades (220) are parallel.

4. The photovoltaic bracket according to claim 1, characterized in that: The component protection unit (200) comprises a telescopic driving member (241) mounted on the mounting seat (210); a blade shaft (221) of the shielding blade (220) is connected to the telescopic driving member (241); and the telescopic driving member (241) is used to drive the blade shaft (221) to move, so that the component protection unit (200) switches between the retracted state and the extended state.

5. The photovoltaic support according to claim 4, characterized in that: The mounting seat (210) is provided with a slide rail (211), a slider (212) is slidably connected to the slide rail (211), and the slider (212) is connected to the telescopic driving member (241); the blade shaft (221) of the shielding blade (220) is connected to the slider (212) and moves synchronously with the slider (212).

6. The photovoltaic support according to claim 4, characterized in that: The component protection unit (200) comprises a rotary drive member (251) mounted on the mounting seat (210) and a transmission wheel (252) connected to the rotary drive member (251); the transmission wheel (252) is in transmission connection with the shielding blade (220); the rotary drive member (251) is used to drive the transmission wheel (252) to rotate, so as to drive the shielding blade (220) to deflect around the blade shaft (221).

7. The photovoltaic support according to claim 6, characterized in that: The component protection unit (200) further comprises a transmission rope (253) wound around the transmission wheel (252), the transmission rope (253) being connected to the shielding blade (220), and the transmission wheel (252) drives the shielding blade (220) to deflect via the transmission rope (253).

8. The photovoltaic support according to claim 7, characterized in that: The transmission rope (253) is fixedly connected to the blade portion (222) of the shielding blade (220); the transmission wheel (252) is provided with bosses (254) on both sides along its radial direction, and the transmission rope (253) is fixedly connected to the bosses (254); and the direction of the line connecting the two bosses (254) is parallel to the extension direction of the shielding blade (220).

9. The photovoltaic support according to claim 1, characterized in that: The photovoltaic support further comprises an environmental information collection unit (300), the environmental information collection unit (300) being used to feed back acquired environmental information to the component protection unit (200), so that the component protection unit (200) switches between the contracted state and the extended state.

10. The photovoltaic support according to claim 1, characterized in that: The main structure (100) comprises a plurality of front columns (111), a plurality of rear columns (112) and a plurality of purlins (120); the front columns (111) and the rear columns (112) are respectively arranged at two ends of the photovoltaic module (1000); one of the purlins (120) is connected between the photovoltaic module (1000) and the front columns (111), and one of the purlins (120) is connected between the photovoltaic module (1000) and the rear columns (112).

11. The photovoltaic support according to claim 10, characterized in that: The main structure (100) further comprises a plurality of inclined beams (130), one end of each inclined beam (130) being connected between the front column (111) and the purlin (120), and the other end of each inclined beam (130) being connected between the rear column (112) and the purlin (120).

12. The photovoltaic support according to claim 11, characterized in that: The main structure (100) further comprises a purlin connecting member (151) and a locking member (152); a first end face of the purlin connecting member (151) abuts against the purlin (120); a second end face of the purlin connecting member (151) abuts against the inclined beam (130); and the locking member (152) is used to lock the purlin connecting member (151) and the inclined beam (130).

13. The photovoltaic support according to claim 12, characterized in that: One of the first end surface of the purlin connecting member (151) and the purlin (120) is provided with a first buckle (1511), and the other is provided with a first clamping groove for clamping with the first buckle (1511); and / or, One of the second end surface of the purlin connecting member (151) and the oblique beam (130) is provided with a second buckle (1512), and the other is provided with a second clamping groove for clamping with the second buckle (1512).

14. The photovoltaic support according to claim 11, characterized in that: The main structure (100) further comprises a front diagonal brace (141) and a rear diagonal brace (142); one end of the front diagonal brace (141) is connected to the front column (111), and the other end of the front diagonal brace (141) is connected to the diagonal beam (130); one end of the rear diagonal brace (142) is connected to the rear column (112), and the other end of the rear diagonal brace (142) is connected to the diagonal beam (130).

15. The photovoltaic support according to claim 14, characterized in that: The main structure (100) further comprises a front column foot (161) and a first fastener (162), wherein the front column foot (161) is provided with a first mounting groove, the front column (111) and the front diagonal brace (141) are both clamped in the first mounting groove, and the front column (111) and the front diagonal brace (141) are respectively fastened to the front column foot (161) via the first fastener (162); and / or, The main structure (100) further comprises a rear column foot (163) and a second fastener (164); a second mounting groove is provided on the rear column foot (163); the rear column (112) and the rear diagonal brace (142) are both snap-fitted into the second mounting groove; and the rear column (112) and the rear diagonal brace (142) are respectively fastened to the rear column foot (163) via the second fastener (164).

16. The photovoltaic support according to claim 14, characterized in that: The main structure (100) further comprises a front beam column connecting member (171) and a third fastener (172), the front beam column connecting member (171) being provided with a third mounting groove, the front upright column (111) and the inclined beam (130) being both clamped in the third mounting groove, and the front upright column (111) and the inclined beam (130) being respectively fastened to the front beam column connecting member (171) via the third fastener (172); and / or, The main structure (100) further comprises a rear beam column connecting member (173) and a fourth fastener (174), the rear beam column connecting member (173) being provided with a fourth mounting groove, the rear upright column (112) and the inclined beam (130) being both clamped in the fourth mounting groove, and the rear upright column (112) and the inclined beam (130) being respectively fastened to the rear beam column connecting member (173) via the fourth fastener (174); and / or, The main structure (100) further comprises a beam support connector (181) and a fifth fastener (182), the beam support connector (181) being provided with a fifth mounting groove, the inclined beam (130), the front inclined brace (141) and the rear inclined brace (142) being all clamped in the fifth mounting groove, and the inclined beam (130), the front inclined brace (141) and the rear inclined brace (142) being respectively fastened to the beam support connector (181) via the fifth fastener (182); and / or, The main structure (100) further comprises two back tie rods (191), wherein the two back tie rods (191) are cross-connected between the two rear upright posts (112).

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