A new photovoltaic support structure with snow removal function for floating photovoltaic power stations in the cold regions of Northeast China

Abstract

The present invention provides a novel photovoltaic support structure with a snow removal function for use in a water photovoltaic power station in a cold region of Northeast China, and relates to the technical field of photovoltaic supports, including a float, a bottom beam, an inclined beam, a photovoltaic module and an angle adjustment module. The float is provided with multiple groups, and the multiple groups of floats are arranged in parallel. The bottom beam is fixedly connected between adjacent floats, one end of the inclined beam is hinged to the top of the bottom beam through a first connecting piece, the photovoltaic module is fixedly connected to the top surface of the inclined beam through bolts, and an angle adjustment device is installed between the bottom beam and the inclined beam. Aiming at the problem of snow accumulation on the surface of existing water photovoltaic support modules, the present invention makes partial structural improvements, by adding a support angle adjustment module, when the snow on the surface of the photovoltaic module accumulates to a certain thickness, the angle between the photovoltaic module and the horizontal plane is increased, so that the angle between the photovoltaic module and the horizontal plane reaches 50 degrees, and the snow on the surface of the module can automatically slide down by its own weight, so that the surface of the module is protected from being blocked by snow accumulation, thereby improving the power generation efficiency of the power station.

Description

Technical Field

[0001] The invention relates to the technical field of water-based photovoltaic supports, and in particular to a novel photovoltaic support structure with a snow removal function for use in water-based photovoltaic power stations in cold regions of Northeast China. Background Art

[0002] With the rapid development of the photovoltaic industry, the land for photovoltaic power stations is becoming less and less. In order to solve the problem of land constraints on photovoltaic power stations, photovoltaic power stations are developing towards the sea, lakes and reservoirs. The existing water photovoltaic power stations are developing rapidly in the south. The bracket is a fixed non-adjustable bracket. In order to avoid excessive wind resistance and a small angle between the component and the horizontal plane, two "C"-shaped steels are installed at the bottom of the bracket to be fixed to the upper part of the floating body. The components are connected to the "C"-shaped steel through special-shaped purlins and fasteners. The components are arranged facing due south and at an angle of 12 degrees to the horizontal plane.

[0003] Affected by climate factors, the temperature in the Northeast region can reach minus 30 to 40 degrees Celsius in winter, and there are frequent heavy snows. Since the existing bracket angle is relatively small, snow easily accumulates on the surface of the components, seriously affecting the power generation efficiency. Therefore, one of the biggest problems facing the water photovoltaic power station in the Northeast region is how to solve the problem of snow accumulation on the surface of the components. Based on this, the present invention designs a new photovoltaic bracket structure with snow removal function for the water photovoltaic power station in the cold region of Northeast China to solve the above problem. Summary of the invention

[0004] Aiming at the problem of snow accumulation on the surface of existing water photovoltaic support assemblies, the present invention makes partial structural improvements by adding a set of support angle adjustment devices. When the snow on the surface of the assembly accumulates to a certain thickness, the angle between the assembly and the horizontal plane is increased to 50 degrees. At this time, the snow on the surface of the assembly can automatically slide down by its own weight, thereby protecting the surface of the assembly from being blocked by snow accumulation, thereby improving the power generation efficiency of the power station.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new photovoltaic support structure with snow removal function for use in water photovoltaic power stations in the cold regions of Northeast China, comprising a float, a bottom beam, an inclined beam, a photovoltaic module and an angle adjustment device, wherein the floats are provided in multiple groups, and the multiple groups of floats are arranged in parallel, the bottom beam is fixedly connected between adjacent floats, one end of the inclined beam is hinged to the top of the bottom beam through a first connecting piece, the photovoltaic module is fixedly connected to the top surface of the inclined beam by bolts, and the angle adjustment device is installed between the bottom beam and the inclined beam.

[0006] Preferably, the angle adjustment device includes a drive motor, a rotating shaft, a support rod, a fixed block and a rotating block, the fixed block is fixedly connected to the middle part of the bottom beam, the rotating shaft is rotatably connected to the fixed block through a second connecting member, the drive motor is transmission-connected to one end of the rotating shaft, the support rod is V-shaped, a third connecting member is provided in the middle part of the inclined beam, the bent end of the support rod is hinged to the third connecting member in the middle part of the inclined beam through a fourth connecting member, the rotating block is movably connected to both ends of the support rod away from the fourth connecting member, and the rotating block is threadedly connected to the rotating shaft.

[0007] Preferably, threads are provided on the rotating shaft, and there are multiple groups of threads evenly distributed, and the rotation directions of two adjacent groups of threads are opposite, and the rotating blocks at both ends of the support rod are respectively screwed on the threads with different rotation directions.

[0008] Preferably, the bottom beam and the inclined beam are both made of cold-bent thin-walled steel.

[0009] Preferably, the bottom beam, the inclined beam, the photovoltaic assembly and the angle adjustment device are provided in multiple groups and are distributed in a square array between the multiple groups of floating bodies.

[0010] Preferably, the photovoltaic components are tilted, with the tilt angle being about 20° in the working state and 50° in the snow removal state.

[0011] Preferably, the surfaces of the bottom beam, the inclined beam and the angle adjustment device are all provided with a galvanized layer, and are subjected to rust removal, degreasing and pickling treatments.

[0012] Preferably, a retaining ring is provided on one side of the rotating shaft close to the fixed block, and an axis pin hole is provided on the other side of the rotating shaft close to the fixed block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The present invention aims to solve the problem of snow accumulation on the surface of existing water-based photovoltaic support assemblies. The present invention makes partial structural improvements. By adding a support angle adjustment device, when the snow on the surface of the photovoltaic assembly accumulates to a certain thickness, the angle between the photovoltaic assembly and the horizontal plane is increased to 50 degrees. At this time, the snow on the surface of the assembly can automatically slide down by its own weight, thereby preventing the surface of the assembly from being blocked by snow accumulation, thereby improving the power generation efficiency of the power station.

[0015] (2) The structure of the present invention is simple and reliable. The materials used are all cold-bent inner-curled C-shaped steel. The connecting parts and structural parts are connected by bolts. The process is simple and convenient for on-site installation. In addition, all structural parts and connecting parts have been subjected to surface anti-corrosion treatments such as rust removal, degreasing, pickling, and galvanizing, thereby increasing the service life of the entire support structure.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of the local structure at point A in the middle;

[0020] Figure 3 This is a structural diagram of the present invention when it is working;

[0021] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0022] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0023] Figure 6 for Figure 2 The enlarged view of point D in the middle;

[0024] Figure 7 This is a schematic diagram of the structure of the angle adjustment device of the present invention;

[0025] Figure 8 for Figure 7 Enlarged view of point E in the middle;

[0026] Fig. 9 for Figure 7 Enlarged view of point F in the middle.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1-floating body, 2-bottom beam, 3-inclined beam, 4-photovoltaic module, 5-angle adjustment device, 501-driving motor, 502-rotating shaft, 503-support rod, 504-fixed block, 505-rotating block, 6-first connecting piece, 7-second connecting piece, 8-third connecting piece, 9-fourth connecting piece, 10-thread, 11-axle pin hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-9 The present invention provides a technical solution: a new photovoltaic support structure with snow removal function for water photovoltaic power stations in the cold regions of Northeast China, comprising a floating body 1, a bottom beam 2, an inclined beam 3, a photovoltaic module 4 (a single solar cell cannot be used directly as a power source. To be used as a power source, a number of single cells must be connected in series and parallel and tightly sealed into a module. Such a module is called a photovoltaic module, also called a solar panel, which is the core part of a solar power generation system and the most important part of a solar power generation system) and an angle adjustment device 5. The floating body 1 is provided with multiple groups, and the multiple groups of floating bodies 1 are arranged in parallel. The bottom beam 2 is fixedly connected between adjacent floating bodies 1. One end of the inclined beam 3 is hinged to the middle part of the bottom beam 2 through a first connecting member 6. The photovoltaic module 4 is fixedly connected to the top surface of the inclined beam 3 by bolts, and the angle adjustment device 5 is installed between the bottom beam 2 and the inclined beam 3.

[0031] Among them, the angle adjustment device 5 includes a driving motor 501, a rotating shaft 502, a support rod 503, a fixed block 504 and a rotating block 505. The fixed block 504 is fixedly connected to the top of the bottom beam 2, the rotating shaft 502 is rotatably connected to the fixed block 504 through the second connecting member 7, the driving motor 501 is transmission connected to one end of the rotating shaft 502, the support rod 503 is V-shaped, and a third connecting member 8 is provided in the middle of the inclined beam 3. The bent end of the support rod 503 is hinged to the third connecting member 8 in the middle of the inclined beam 3 through a fourth connecting member 9, the rotating block 505 is movably connected to the two ends of the support rod 503 away from the fourth connecting member 9, and the rotating block 505 is threadedly connected to the rotating shaft 502.

[0032] Among them, threads 10 are provided on the rotating shaft 502, and there are multiple groups of threads 10 evenly distributed, and the rotation directions of two adjacent groups of threads 10 are opposite. The rotating blocks 505 at both ends of the support rod 503 are respectively screwed on the threads 10 with different rotation directions. The threads on the rotating shaft 502 have a self-locking function, and the structure is stable and reliable when in working state.

[0033] The bottom beam 2 and the inclined beam 3 are both made of cold-bent thin-walled steel. (“C” steel, square steel, “T” steel, etc. can be used)

[0034] There are multiple groups of bottom beams 2, inclined beams 3, photovoltaic modules 4 and angle adjustment devices 5, which are distributed in a square array between multiple groups of floating bodies 1. There are also multiple groups of drive motors 501, which independently control the steering of each rotating shaft 502. The drive motors 501 are located on the shore. If necessary, waterproof protection is also required for the drive motors.

[0035] The photovoltaic module 4 is tilted, with the tilt angle being about 20° in the working state and 50° in the snow removal state.

[0036] Among them, the surface of the bottom beam 2, the inclined beam 3 and the angle adjustment device 5 are all provided with a galvanized layer, and through rust removal, degreasing and pickling treatment, the overall strength is improved, thereby achieving the effect of increasing the service life of the bracket.

[0037] Among them, a retaining ring is provided on the side of the rotating shaft 502 close to the fixed block 504, and an axle pin hole 11 is provided on the other side of the rotating shaft 502 close to the fixed block 504. The rotating shaft is on the left and right sides of the fixed block, one side is provided with a retaining ring, and the other side is provided with an axle pin hole to install a cotter pin, which can prevent the rotating shaft from moving left and right during operation.

[0038] A specific application of this embodiment is: the device provides electrical energy to the electrical components in the device through an external power supply, and controls their opening and closing through a control switch;

[0039] When in use, by turning on the driving motor 501, its rotation will drive the rotating shaft 502 to rotate, and the oppositely rotating threads 10 on the rotating shaft 502 will drive the rotating block 505 to move in the opposite direction, thereby causing the angle of the support rod 503 to change, and the upper end of the support rod 503 moves up and down, causing the inclined beam 3 together with the photovoltaic component 4 to rotate around the first connecting piece 6, so as to realize the change of the component inclination angle. Under normal working conditions, the inclination angle of the photovoltaic component 4 is 20 degrees. When there is snow on its surface, choose a period of low wind and adjust the angle to 50 degrees. The snow on the surface of the photovoltaic component 4 will automatically slide off, and then adjust the angle back to 20 degrees, so that the photovoltaic component 4 can work normally again.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A new photovoltaic support structure with snow removal function for water photovoltaic power stations in the cold regions of Northeast China, characterized by: The invention comprises a floating body (1), a bottom beam (2), an inclined beam (3), a photovoltaic module (4) and an angle adjustment device (5), wherein the floating body (1) is provided with a plurality of groups, and the plurality of groups of floating bodies (1) are arranged in parallel, the bottom beam (2) is fixedly connected between adjacent floating bodies (1), one end of the inclined beam (3) is hinged to the top of the bottom beam (2) through a first connecting member (6), the photovoltaic module (4) is fixedly connected to the top surface of the inclined beam (3) through bolts, and the angle adjustment device (5) is installed between the bottom beam (2) and the inclined beam (3); The angle adjustment device (5) comprises a drive motor (501), a rotating shaft (502), a support rod (503), a fixed block (504) and a rotating block (505); the fixed block (504) is fixedly connected to the middle of the bottom beam (2); the rotating shaft (502) is rotatably connected to the fixed block (504) via a second connecting member (7); the drive motor (501) is drivingly connected to one end of the rotating shaft (502); the support rod (503) is V-shaped; a third connecting member (8) is provided in the middle of the inclined beam (3); and a bent end of the support rod (503) is hinged to the third connecting member (9) in the middle of the inclined beam (3) via a fourth connecting member (9). 8), the rotating blocks (505) are movably connected to the two ends of the support rod (503) away from the fourth connecting member (9), and the rotating blocks (505) are threadedly connected to the rotating shaft (502); the rotating shaft (502) is provided with threads (10), the threads (10) are evenly distributed in multiple groups, and the rotation directions of two adjacent groups of threads (10) are opposite, and the rotating blocks (505) at both ends of the support rod (503) are respectively threadedly connected to the threads (10) of different rotation directions; a retaining ring is provided on one side of the rotating shaft (502) close to the fixed block (504), and an axle pin hole (11) is provided on the other side of the rotating shaft (502) close to the fixed block (504).

2. A novel photovoltaic support structure with snow removal function for a water photovoltaic power station in the cold region of Northeast China as claimed in claim 1, characterized in that: The bottom beam (2) and the inclined beam (3) are both made of cold-bent thin-walled steel.

3. A novel photovoltaic support structure with snow removal function for a water photovoltaic power station in the cold region of Northeast China as claimed in claim 1, characterized in that: The bottom beam (2), the inclined beam (3), the photovoltaic assembly (4) and the angle adjustment device (5) are provided in multiple groups and are distributed in a square array between the multiple groups of floating bodies (1).

4. A novel photovoltaic support structure with snow removal function for a photovoltaic power station on water in the cold regions of Northeast China as claimed in claim 1, characterized in that: The photovoltaic assembly (4) is arranged to be tilted, with the tilt angle being 20° in the working state and the tilt angle being 50° in the snow removal state.

5. A novel photovoltaic support structure with snow removal function for a photovoltaic power station on water in the cold regions of Northeast China as claimed in claim 1, characterized in that: The surfaces of the bottom beam (2), the inclined beam (3) and the angle adjustment device (5) are all provided with a galvanized layer and are subjected to rust removal, degreasing and pickling treatments.

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