Photovoltaic device

Abstract

The invention provides a photovoltaic device. The photovoltaic device comprises a base; the mounting frame is arranged on the base; the fixing frame is hinged to the mounting frame; the photovoltaic panel is arranged on the fixing frame; the first end of the first telescopic structure is hinged to the mounting frame, the second end of the first telescopic structure is hinged to the fixing frame, and the first telescopic structure comprises a fixing main body part and a telescopic part; and the flexible dustproof protective sleeve is arranged on the telescopic part in a sleeving mode, and when the telescopic part stretches out or retracts back, the length of the flexible dustproof protective sleeve can change along with the length change of the telescopic part. According to the technical scheme, the problem that the service life is affected due to the fact that the telescopic section of the electric push rod in the related technology is prone to being polluted by sand and dust is effectively solved.

Description

Technical Field

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

[0002] The photovoltaic module automatic reversing device is a device used in photovoltaic power generation systems. Its main function is to automatically adjust the working direction of the photovoltaic module to adapt to the movement of the sun, thereby improving the light receiving efficiency of the photovoltaic module. It usually achieves the tilt and rotation of the photovoltaic module through mechanical structures or electric devices, so that it always maintains the best angle with the sunlight, thereby maximizing energy output.

[0003] The existing photovoltaic module automatic reversing device uses a reversing bracket to control the rotation of the photovoltaic module, and the angle of inclination is mainly achieved by rotating the electric push rod. Photovoltaic power generation equipment installed in Gobi and desert areas is easily invaded by wind and sand, and the telescopic part of the electric push rod is easily contaminated by sand and dust, which affects its service life. Summary of the invention

[0004] The main purpose of the present invention is to provide a photovoltaic device to solve the problem in the related art that the telescopic section of the electric push rod is easily contaminated by sand and dust, thereby affecting the service life.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a photovoltaic device, comprising: a base; a mounting frame, arranged on the base; a fixing frame, the fixing frame being hingedly connected to the mounting frame; a photovoltaic panel, arranged on the fixing frame; a first telescopic structure, a first end of the first telescopic structure being hingedly connected to the mounting frame, a second end of the first telescopic structure being hingedly connected to the fixing frame, the first telescopic structure comprising a fixed main body and a telescopic portion; a flexible dustproof protective cover, arranged on the telescopic portion, and when the telescopic portion is extended or retracted, the length of the flexible dustproof protective cover can change with the length of the telescopic portion.

[0006] Furthermore, the photovoltaic device also includes a connection structure, which is arranged at the end of the telescopic part away from the main body, the first end of the flexible dustproof protective cover is connected to the main body, and the second end of the flexible dustproof protective cover is connected to the connection structure.

[0007] Furthermore, the connecting structure includes a first connecting plate and a locking piece. A second connecting plate is provided at the end of the telescopic part away from the main body. The first connecting plate is connected to the second end of the flexible dustproof protective cover and avoids the telescopic part. The locking piece can lock the second connecting plate and the first connecting plate.

[0008] Furthermore, a limiting hole is provided on the side wall of the second connecting plate, and the locking piece can be inserted into the limiting hole.

[0009] Furthermore, the first connecting plate is an annular structure and is sleeved on the outer side of the telescopic part. A connecting hole is provided on the side wall of the annular structure. The locking piece includes a first protrusion and a second protrusion arranged at intervals and a connecting block connected between the first protrusion and the second protrusion. The first protrusion and the second protrusion are located on the same side of the connecting block. When the locking piece locks the second connecting plate and the first connecting plate, the first protrusion is inserted into the limiting hole and the second protrusion is inserted into the connecting hole.

[0010] Furthermore, the connection structure also includes an elastic member connected between the bottom wall of the connection hole and the second protrusion.

[0011] Further, the distance between the end of the first bump away from the connecting block and the connecting block is a, and the distance between the end of the second bump away from the connecting block and the connecting block is b, wherein the distance a and the distance b satisfy: 0.3≤a / b≤0.7.

[0012] Furthermore, the locking member further comprises an operating block, which is arranged on a side of the connecting block away from the first protrusion, and a plurality of anti-slip grooves are arranged at intervals on the operating block.

[0013] Furthermore, the photovoltaic panel includes multiple panel bodies, and the photovoltaic device also includes a tension wire and a rotating rod. The tension wire is ring-shaped and connected to the multiple panel bodies. The rotating rod is drive-connected to the tension wire. When the rotating rod rotates, the tension wire can be tightened or loosened. When the tension wire is tightened, the multiple panel bodies can be driven closer to each other.

[0014] Furthermore, the photovoltaic device also includes a second telescopic structure, which is arranged between the fixing frame and the panel body at a middle position of the photovoltaic panel.

[0015] According to the technical solution of the present invention, a mounting frame is arranged on a base, a fixing frame is hingedly connected to the mounting frame, a photovoltaic panel is arranged on the fixing frame, a first end of a first telescopic structure is hingedly connected to the mounting frame, a second end of the first telescopic structure is hingedly connected to the fixing frame, the first telescopic structure includes a main body and a telescopic portion, a flexible dustproof protective sleeve is arranged on the telescopic portion, and when the telescopic portion is extended or retracted, the length of the flexible dustproof protective sleeve can change with the length of the telescopic portion. Through the above-mentioned arrangement, the flexible dustproof protective sleeve can provide dustproof protection for the telescopic portion, thereby preventing the telescopic portion from being polluted by sand and dust, and because the flexible dustproof protective sleeve can be telescopic, the flexible dustproof protective sleeve can be deformed with the movement of the telescopic portion, thereby better protecting the telescopic portion. Therefore, the technical solution of the present application effectively solves the problem in the related art that the telescopic section of the electric push rod is easily polluted by sand and dust, thereby affecting the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a photovoltaic device according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 A partial enlarged view of the photovoltaic device at point A;

[0019] Figure 3 Shows Figure 1 A partial structural schematic diagram of a first connecting plate of a photovoltaic device;

[0020] Figure 4 Shows Figure 1 A schematic diagram of a three-dimensional structure of a second connecting plate of a photovoltaic device;

[0021] Figure 5 Shows Figure 1 A schematic diagram of a three-dimensional structure of a locking member of a photovoltaic device;

[0022] Figure 6 Shows Figure 1 A bottom-up schematic diagram of a photovoltaic panel of a photovoltaic device;

[0023] Figure 7 Shows Figure 6 A schematic side view of a photovoltaic panel of a photovoltaic device;

[0024] Figure 8 Shows Figure 6 A schematic structural diagram of a photovoltaic panel of a photovoltaic device in one state;

[0025] Fig. 9 Shows Figure 6 A schematic structural diagram of a photovoltaic panel of a photovoltaic device in another state.

[0026] The above drawings include the following reference numerals:

[0027] 10. Base; 20. Mounting frame; 30. Fixing frame; 40. Photovoltaic panel; 41. Panel body; 50. First telescopic structure; 51. Second connecting plate; 511. Limiting hole; 60. Flexible dustproof protective cover; 70. Connecting structure; 71. First connecting plate; 711. Connecting hole; 72. Locking piece; 721. First protrusion; 722. Second protrusion; 723. Connecting block; 724. Operating block; 73. Elastic piece; 81. Tension line; 82. Rotating rod; 83. Second telescopic structure. DETAILED DESCRIPTION

[0028] 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, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. 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.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, the photovoltaic device includes: a base 10, a mounting frame 20, a fixing frame 30, a photovoltaic panel 40, a first telescopic structure 50 and a flexible dustproof protective cover 60. The mounting frame 20 is arranged on the base 10. The fixing frame 30 is hingedly connected to the mounting frame 20. The photovoltaic panel 40 is arranged on the fixing frame 30. The first end of the first telescopic structure 50 is hingedly connected to the mounting frame 20, and the second end of the first telescopic structure 50 is hingedly connected to the fixing frame 30. The first telescopic structure 50 includes a main body and a telescopic part. The flexible dustproof protective cover 60 is sleeved on the telescopic part. When the telescopic part is extended or retracted, the length of the flexible dustproof protective cover 60 can change with the change of the length of the telescopic part.

[0032] According to the technical solution of this embodiment, the mounting frame 20 is arranged on the base 10, the fixing frame 30 is hingedly connected to the mounting frame 20, the photovoltaic panel 40 is arranged on the fixing frame 30, the first end of the first telescopic structure 50 is hingedly connected to the mounting frame 20, the second end of the first telescopic structure 50 is hingedly connected to the fixing frame 30, the first telescopic structure 50 includes a main body and a telescopic part, and the flexible dustproof protective cover 60 is sleeved on the telescopic part. When the telescopic part is extended or retracted, the length of the flexible dustproof protective cover 60 can change with the length of the telescopic part. Through the above-mentioned setting, the flexible dustproof protective cover 60 can provide dust protection for the telescopic part, thereby preventing the telescopic part from being polluted by sand and dust, and because the flexible dustproof protective cover 60 can be telescopic, the flexible dustproof protective cover 60 can be deformed with the movement of the telescopic part, thereby better protecting the telescopic part. Therefore, the technical solution of this embodiment effectively solves the problem that the telescopic section of the electric push rod in the related art is easily polluted by sand and dust, thereby affecting the service life.

[0033] Through this design, the photovoltaic device can automatically adjust the angle of the photovoltaic panel under different lighting conditions to improve energy conversion efficiency, which is especially suitable for areas with large changes in lighting angles. The above design can significantly improve the energy conversion efficiency of photovoltaic devices under different lighting conditions, especially in areas where the lighting angle changes frequently, which can greatly improve the stability and reliability of solar power generation, reduce dependence on traditional energy, and promote the application of sustainable energy.

[0034] like Figures 1 to 5 As shown, in this embodiment, the photovoltaic device also includes a connection structure 70, which is arranged at the end of the telescopic part away from the main body, the first end of the flexible dustproof protective cover 60 is connected to the main body, and the second end of the flexible dustproof protective cover 60 is connected to the connection structure 70. The addition of the connection structure 70 enables the flexible dustproof protective cover 60 to be more firmly fixed on the telescopic part to prevent it from falling off under adverse weather conditions. The connection structure 70 not only enhances the stability of the flexible dustproof protective cover 60, but also improves its protection ability in adverse environments, such as in desert areas with strong winds and sand, and can effectively prevent sand and dust from eroding the photovoltaic panel 40 and the telescopic structure.

[0035] like Figures 1 to 5As shown, in this embodiment, the connection structure 70 includes a first connection plate 71 and a locking member 72. The end of the telescopic part away from the main body is provided with a second connection plate 51. The first connection plate 71 is connected to the second end of the flexible dustproof protective cover 60 and avoids the telescopic part. The locking member 72 can lock the second connection plate 51 and the first connection plate 71. This locking mechanism ensures that the flexible dustproof protective cover 60 does not generate unnecessary friction during the telescopic part, protects the mechanical structure of the telescopic part, and is suitable for photovoltaic devices that frequently adjust the angle. The design of the locking member 72 not only reduces friction and protects the mechanical structure of the telescopic part, but also enables the photovoltaic device to adjust the angle more accurately, which is suitable for application scenarios with high requirements for angle adjustment.

[0036] like Figures 1 to 5 As shown, in this embodiment, a limiting hole 511 is provided on the side wall of the second connecting plate 51, and the locking member 72 can be inserted into the limiting hole 511. The design of the limiting hole 511 enables the locking member 72 to be accurately fixed on the second connecting plate 51, thereby enhancing the stability of the photovoltaic device, and is suitable for solar scientific research equipment or high-precision solar power stations that require high-precision positioning. The precise design of the limiting hole 511 can ensure that the position of the locking member 72 is accurate when it is fixed, and can reduce energy loss caused by inaccurate positioning.

[0037] like Figures 1 to 5 As shown, in this embodiment, the first connecting plate 71 is an annular structure and is sleeved on the outside of the telescopic part. A connecting hole 711 is provided on the side wall of the annular structure. The locking member 72 includes a first protrusion 721 and a second protrusion 722 arranged at intervals and a connecting block 723 connected between the first protrusion 721 and the second protrusion 722. The first protrusion 721 and the second protrusion 722 are located on the same side of the connecting block 723. When the locking member 72 locks the second connecting plate 51 and the first connecting plate 71, the first protrusion 721 is inserted into the limiting hole 511, and the second protrusion 722 is inserted into the connecting hole 711. This structural design not only simplifies the installation process of the locking member 72, but also ensures its reliability in various environments, and is suitable for rapidly deployed solar power generation projects. This structural optimization not only simplifies the installation and maintenance process, but also improves the environmental adaptability of the locking member 72. The connecting structure 70 also includes an elastic member 73, which is connected between the bottom wall of the connecting hole 711 and the second protrusion 722. The elastic member 73 enables the locking member 72 to withstand certain external impacts in the locked state, and improves the durability of the locking member 72.

[0038] like Figures 1 to 5As shown, in this embodiment, the distance between the end of the first protrusion 721 away from the connecting block 723 and the connecting block 723 is a, and the distance between the end of the second protrusion 722 away from the connecting block 723 and the connecting block 723 is b, wherein the distance a and the distance b satisfy: 0.3≤a / b≤0.7. This size ratio setting ensures the balance and stability of the locking member 72 during operation, and prevents deflection during locking or unlocking.

[0039] The above-mentioned size setting can make the first protrusion 721 easier to separate from the limiting hole 511, and because the length of the second protrusion 722 is greater than the length of the first protrusion 721, under the action of the second protrusion 722 and the connecting hole 711, the guiding function is achieved, thereby making the movement stability of the locking piece 72 better.

[0040] Specifically, in this embodiment, a / b=0.5.

[0041] like Figures 1 to 5 As shown, in this embodiment, the locking member 72 further includes an operating block 724, which is disposed on a side of the connecting block 723 away from the first protrusion 721, and a plurality of anti-skid grooves are disposed at intervals on the operating block 724. The anti-skid design of the operating block 724 makes it more convenient for the user to operate the locking member 72, and can maintain a good grip even in rainy and snowy weather, and is suitable for solar power generation equipment in harsh outdoor environments.

[0042] like Figures 1 to 5 As shown, in this embodiment, the upper end of the base 10 is fixedly connected to the mounting frame 20, the upper end of the vertical portion of the mounting frame 20 is fixedly connected to the connecting rod, the upper end of the connecting rod is rotatably connected to the fixing frame 30, the outer wall of the fixing frame 30 away from the connecting rod is fixedly mounted with the photovoltaic panel 40, the upper end of the horizontal portion of the mounting frame 20 is rotatably connected to the first telescopic structure 50, the upper end of the telescopic portion of the first telescopic structure 50 is fixedly connected to the second connecting plate 51, the upper end of the second connecting plate 51 is rotatably connected to the fixing frame 30, the outer wall of the first telescopic structure 50 is fixedly connected to the flexible dustproof protective cover 60, the telescopic portion of the first telescopic structure 50 is located on the inner side of the flexible dustproof protective cover 60, and the upper end of the flexible dustproof protective cover 60 is fixedly connected to the second connecting plate 51, the second connecting plate 51 is slidably sleeved on the outer wall of the telescopic portion of the first telescopic structure 50, and the upper end of the second connecting plate 51 is in contact with the lower end of the second connecting plate 51, and a locking member 72 is provided between the first connecting plate 71 and the second connecting plate 51.

[0043] It should be noted that the mounting frame 20 is an L-shaped frame.

[0044] like Figures 1 to 5As shown, in this embodiment, two connecting holes 711 are arranged at intervals on the first connecting plate 71, and the two connecting holes 711 are symmetrically opened on the outer wall of the first connecting plate 71, and the inner walls of the two connecting holes 711 are both fitted with second protrusions 722, and elastic members 73 are respectively provided between the two second protrusions 722 and the two connecting holes 711, and the upper ends of the vertical parts of the two second protrusions 722 are fixedly connected to the first protrusions 721, and the two first protrusions 721 are both slidably arranged in the inner wall of the second connecting plate 51.

[0045] like Figures 1 to 5 As shown, in this embodiment, the elastic member 73 includes two springs, and the two springs are symmetrically fixedly connected between the inner wall of the connecting hole 711 and the end of the second protrusion 722 .

[0046] like Figures 1 to 5 As shown, in this embodiment, the outer wall of the second connecting plate 51 is provided with limiting holes 511 corresponding to the two first protrusions 721 , and the two limiting holes 511 are slidably matched with the two first protrusions 721 .

[0047] like Figures 1 to 5 As shown, in this embodiment, the ends of the two second protrusions 722 that are away from each other are fixedly connected to the operating block 724, and the upper and lower ends of the two operating blocks 724 are provided with multiple anti-slip grooves in a linear array from front to back; specifically, the anti-slip grooves can increase the friction between the fingers and the operating block 724, so that a certain fixed state can be maintained when the operating block 724 is pulled.

[0048] like Figures 1 to 5 As shown, in this embodiment, the second bump 722 and the first bump 721 are an integrally formed structure; specifically, the second bump 722 and the first bump 721 have good stability.

[0049] like Figures 6 to 9 As shown, in this embodiment, the photovoltaic panel 40 includes a plurality of panels 41, and the photovoltaic device also includes a tension wire 81 and a rotating rod 82. The tension wire 81 is annular and connected to the plurality of panels 41, and the rotating rod 82 is drivingly connected to the tension wire 81. When the rotating rod 82 rotates, the tension wire 81 can be tightened or loosened. When the tension wire 81 is tightened, the plurality of panels 41 can be driven to move closer to each other. This design enables the photovoltaic panel to automatically adjust the expansion or folding state as needed, thereby improving the use efficiency and adaptability of the photovoltaic panel.

[0050] like Figures 6 to 9As shown, in this embodiment, the photovoltaic device further includes a second telescopic structure 83, which is disposed between the fixing frame 30 and the plate body 41 at the middle position of the photovoltaic panel 40. The addition of the second telescopic structure 83 can not only further optimize the angle adjustment of the photovoltaic panel 40, but also provide additional support in the case of strong wind, thereby preventing the photovoltaic panel 40 from being damaged due to excessive wind.

[0051] The above design not only improves the energy collection efficiency of the photovoltaic panel 40 under different lighting conditions, but also enhances its stability in a windy environment. The optimization of the second telescopic structure 83 can provide additional support under windy conditions, effectively avoiding damage to the photovoltaic panel 40, improving the wind resistance of energy facilities and the environmental adaptability of scientific research equipment, and providing strong support for energy applications in harsh environments.

[0052] The photovoltaic device of the present application can effectively prevent dust and impurities from entering the telescopic part by setting a flexible dust-proof protective cover 60 on the telescopic part of the first telescopic structure 50, reduce the wear of the telescopic part, and extend the service life of the telescopic part. At the same time, through the setting of the connecting structure 70 and the locking member 72, the position of the flexible dust-proof protective cover 60 can be conveniently adjusted and fixed to ensure that it can smoothly change its length when the telescopic part is extended and retracted, thereby improving the reliability and maintenance convenience of the device. In addition, through the setting of the tension wire 81 and the rotating rod 82, the expansion and folding state of the photovoltaic panel 40 can be flexibly adjusted to improve the use efficiency and adaptability of the photovoltaic panel 40. The addition of the second telescopic structure 83 further enhances the adjustment ability of the photovoltaic panel 40 under different environments and requirements, so that the photovoltaic device can better adapt to various lighting conditions and improve energy utilization. The overall design not only improves the performance of the photovoltaic device, but also enhances its flexibility and durability in practical applications.

[0053] The working principle of the photovoltaic device of this embodiment is as follows: when the position of the sun changes, the base 10 will drive the mounting frame 20 to rotate, the mounting frame 20 will drive the connecting rod to rotate, the connecting rod will drive the fixing frame 30 to rotate, and the fixing frame 30 will drive the photovoltaic panel 40 to rotate, thereby realizing the rotation of the photovoltaic panel 40. The rise and fall of the telescopic part of the first telescopic structure 50 on the mounting frame 20 can drive the second connecting plate 51 and the pitch angle of the fixing frame 30 on the second connecting plate 51 to change, thereby realizing the change of the angle of the photovoltaic panel 40, so that the photovoltaic panel 40 always maintains the best angle with the sunlight, thereby maximizing the energy output. The above is a well-known prior art and will not be repeated here.

[0054] During the rising and falling process of the telescopic part of the first telescopic structure 50, the flexible dustproof protective cover 60 between the first telescopic structure 50 and the second connecting plate 51 can be stretched and contracted accordingly, and will not hinder the rising and falling of the telescopic part of the first telescopic structure 50. The flexible dustproof protective cover 60 can always protect the telescopic part of the first telescopic structure 50 to prevent the telescopic part of the first telescopic structure 50 from being contaminated by sand and dust.

[0055] When lubricating oil needs to be added to the telescopic part of the first telescopic structure 50 for maintenance, the operating blocks 724 can be pinched with both hands and the two operating blocks 724 can be pulled away from each other. The two operating blocks 724 will drive the second protrusions 722 on each of them to move away from each other, and the two second protrusions 722 will slide away from each other in the limiting holes 511 on the corresponding second connecting plates 51 (in this process, the two springs between the two second protrusions 722 and the corresponding connecting holes 711 will be stretched), and the two second protrusions 722 will drive the first protrusions 721 on each of them to move in the limiting holes 511 on the corresponding second connecting plates 51 The two first protrusions 721 are moved away from each other until they are completely out of their corresponding limiting holes 511. The two operating blocks 724 are pulled by both hands without letting go, and the two operating blocks 724 will drive the second protrusions 722 on each of them to move down together. The two second protrusions 722 can drive the second connecting plate 51 to leave the lower end of the second connecting plate 51 and continue to move down (the second connecting plate 51 will slide down on the outer wall of the telescopic part of the first telescopic structure 50). Then, the flexible dustproof protective cover 60 between the second connecting plate 51 and the first telescopic structure 50 can be squeezed and contracted to be in a storage state. At this time, the telescopic part of the first telescopic structure 50 can be normally exposed to the outside, so that it is convenient to add lubricating oil to the telescopic part of the first telescopic structure 50 for maintenance. Similarly, after the maintenance is completed, the flexible dustproof protective cover 60 and the second connecting plate 51 can be reset according to the opposite operation, which is easy to operate.

[0056] It should be noted that the photovoltaic device can prevent the telescopic part of the first telescopic structure 50 thereon from being contaminated by sand and dust, and the flexible dustproof protective cover 60 used to protect the telescopic part of the first telescopic structure 50 is easy to store, thereby not hindering the addition of lubricating oil for maintenance of the telescopic part of the first telescopic structure 50, and is flexible to use.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic device, characterized in that: include: Base (10); A mounting frame (20) disposed on the base (10); A fixing frame (30), the fixing frame (30) being hingedly connected to the mounting frame (20); A photovoltaic panel (40) is arranged on the fixing frame (30); a first telescopic structure (50), wherein a first end of the first telescopic structure (50) is hingedly connected to the mounting frame (20), a second end of the first telescopic structure (50) is hingedly connected to the fixing frame (30), and the first telescopic structure (50) comprises a main body and a telescopic portion; The flexible dustproof protective cover (60) is sleeved on the telescopic part. When the telescopic part is extended or retracted, the length of the flexible dustproof protective cover (60) can change along with the length of the telescopic part.

2. The photovoltaic device according to claim 1, characterized in that: The photovoltaic device further comprises a connection structure (70), wherein the connection structure (70) is arranged at an end of the telescopic portion away from the main body portion, a first end of the flexible dustproof protective cover (60) is connected to the main body portion, and a second end of the flexible dustproof protective cover (60) is connected to the connection structure (70).

3. The photovoltaic device according to claim 2, characterized in that: The connection structure (70) comprises a first connection plate (71) and a locking piece (72); a second connection plate (51) is provided at the end of the telescopic portion away from the main body; the first connection plate (71) is connected to the second end of the flexible dustproof protective cover (60) and avoids the telescopic portion; and the locking piece (72) is capable of locking the second connection plate (51) and the first connection plate (71).

4. The photovoltaic device according to claim 3, characterized in that: A limiting hole (511) is provided on the side wall of the second connecting plate (51), and the locking member (72) can be inserted into the limiting hole (511).

5. The photovoltaic device according to claim 4, characterized in that: The first connecting plate (71) is an annular structure and is sleeved on the outer side of the telescopic part. A connecting hole (711) is provided on the side wall of the annular structure. The locking member (72) comprises a first protrusion (721) and a second protrusion (722) which are arranged at intervals and a connecting block (723) connected between the first protrusion (721) and the second protrusion (722). The first protrusion (721) and the second protrusion (722) are located on the same side of the connecting block (723). When the locking member (72) locks the second connecting plate (51) and the first connecting plate (71), the first protrusion (721) is inserted into the limiting hole (511), and the second protrusion (722) is inserted into the connecting hole (711).

6. The photovoltaic device according to claim 5, characterized in that: The connection structure (70) further comprises an elastic member (73), wherein the elastic member (73) is connected between the bottom wall of the connection hole (711) and the second protrusion (722).

7. The photovoltaic device according to claim 5, characterized in that: The distance between the end of the first protrusion (721) away from the connecting block (723) and the connecting block (723) is a, and the distance between the end of the second protrusion (722) away from the connecting block (723) and the connecting block (723) is b, wherein the distance a and the distance b satisfy: 0.3≤a / b≤0.

7.

8. The photovoltaic device according to claim 5, characterized in that: The locking member (72) further comprises an operating block (724), wherein the operating block (724) is arranged on a side of the connecting block (723) away from the first protrusion (721), and a plurality of anti-slip grooves are arranged at intervals on the operating block (724).

9. The photovoltaic device according to claim 1, characterized in that: The photovoltaic panel (40) includes a plurality of panel bodies (41), and the photovoltaic device also includes a tension wire (81) and a rotating rod (82). The tension wire (81) is annular and connected to the plurality of panel bodies (41). The rotating rod (82) is drivingly connected to the tension wire (81). When the rotating rod (82) rotates, the tension wire (81) can be tightened or loosened. When the tension wire (81) is tightened, the plurality of panel bodies (41) can be driven to move closer to each other.

10. The photovoltaic device according to claim 9, characterized in that: The photovoltaic device further comprises a second telescopic structure (83), wherein the second telescopic structure (83) is arranged between the fixing frame (30) and the panel body (41) at a middle position of the photovoltaic panel (40).

Images