CN216959766U - Photovoltaic device and photovoltaic system with same - Google Patents

Abstract

The utility model provides a photovoltaic device and a photovoltaic system with the same, wherein the photovoltaic device comprises: a bearing platform; the support comprises a support body and a rotating shaft, the rotating shaft is arranged on the support body and can be rotatably arranged on the bearing platform, and the axis of the rotating shaft is arranged along the vertical direction; photovoltaic module, the position is adjustable ground and is set up on the support body. Through the technical scheme that this application provided, can solve the problem that photovoltaic device generating efficiency among the prior art is low.

Description

Photovoltaic device and photovoltaic system with same

Technical Field

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic device and a photovoltaic system with the same.

Background

Photovoltaic devices can convert solar energy into electrical energy. Existing photovoltaic devices typically include a support and a plurality of photovoltaic panels mounted on the support. In general, a plurality of photovoltaic panels are arranged side by side on a support part, but the arrangement makes the photovoltaic device unable to receive optimal solar radiation for a long time, and thus, the existing photovoltaic device has low power generation efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a photovoltaic device and a photovoltaic system with the same, and aims to solve the problem that the photovoltaic device in the prior art is low in power generation efficiency.

According to an aspect of the present invention, there is provided a photovoltaic device including: a bearing platform; the support comprises a support body and a rotating shaft, the rotating shaft is arranged on the support body and can be rotatably arranged on the bearing platform, and the axis of the rotating shaft is arranged along the vertical direction; the photovoltaic module is arranged on the frame body in a position-adjustable manner; the first driving mechanism is in driving connection with the bracket so as to enable the bracket to rotate relative to the bearing platform; the light sensing module is used for sensing light signals and arranged on the bearing platform and is electrically connected with the first driving mechanism.

Furthermore, the photovoltaic device further comprises a guide structure, the guide structure is arranged between the bearing platform and the frame body, and the guide structure is used for guiding the rotation of the frame body.

Further, the support body includes the bracing piece, is provided with the guide way on the cushion cap, and the movably wearing to establish of bracing piece is in the guide way, and the guide way is the arc structure, and the centre of a circle of guide way is located the axis of rotation, bracing piece and guide way cooperation are in order to form guide structure.

Further, the support body still includes the actuating lever, and the bracing piece is provided with a plurality ofly, and a plurality of bracing pieces set up side by side on the actuating lever along the extending direction of actuating lever, have a plurality of guide ways on the cushion cap, and a plurality of guide ways use the axis of rotation to set up as central symmetry in the both sides of axis of rotation, and a plurality of guide ways of every side set up on the cushion cap along the extending direction interval of actuating lever, and the guide way sets up with the bracing piece one-to-one.

Further, the support body still includes: the extending direction of the connecting rod is the same as that of the frame body, the connecting rod is rotatably arranged on the supporting rod, and the rotating axis of the connecting rod is vertical to that of the rotating shaft; the photovoltaic module sets up on the connecting rod, and the relative connecting rod's of photovoltaic module position is adjustable.

Further, the photovoltaic device further includes: and the second driving mechanism is arranged on the frame body and is in driving connection with the connecting rod so as to enable the connecting rod to rotate relative to the supporting rod.

Further, the support body is located the axis of rotation at length direction's center, and photovoltaic module includes a plurality of photovoltaic boards, and a plurality of photovoltaic module use the axis of rotation as central symmetry setting on the support body.

Further, the photovoltaic device further includes: the photovoltaic panel support comprises a plurality of telescopic mechanisms, wherein the telescopic mechanisms are arranged on the support body side by side along the extending direction of the support body, included angles are formed between the telescopic mechanisms and the support body, the telescopic mechanisms and the photovoltaic panels are arranged in a one-to-one correspondence mode, and the telescopic mechanisms are connected with the photovoltaic panels in a driving mode so that the photovoltaic panels are close to or far away from the support body.

Furthermore, the photovoltaic device further comprises a plurality of groups of universal rotating assemblies, the universal rotating assemblies are arranged in one-to-one correspondence with the photovoltaic panels, the universal rotating assemblies are arranged between the telescopic mechanisms and the photovoltaic panels, and the universal rotating assemblies are in driving connection with the photovoltaic panels so that the photovoltaic panels can rotate relative to the telescopic mechanisms.

According to another aspect of the present invention, there is provided a photovoltaic system comprising a photovoltaic device as described above.

By applying the technical scheme of the utility model, the bracket is arranged, so that the bracket rotates along with the rotation of the sun, and the bracket rotates to drive the photovoltaic module to rotate. Above-mentioned setting can change photovoltaic module's orientation for photovoltaic module rotates along with the rotation of sun, and then can make photovoltaic module face the sun as long as possible and receive the best solar radiation, promotes photovoltaic module's generating efficiency.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic view illustrating a structure of a photovoltaic device according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating another view of a photovoltaic device according to an embodiment of the present invention;

FIG. 3 illustrates a top view of a photovoltaic device provided by an embodiment of the present invention;

FIG. 4 illustrates a side view of a photovoltaic device provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a light sensing module according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a bearing platform; 11. a guide groove;

21. a support bar;

31. a connecting rod; 32. a photovoltaic panel;

40. a light sensing module; 41. a base body; 42. a photosensitive element; 43. a dust cover;

50. a telescoping mechanism;

60. a universal rotating component.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the utility model provides a photovoltaic device, which includes a supporting platform 10, a bracket and a photovoltaic assembly, a first driving mechanism, and a light sensing module 40. Wherein, the support includes support body and axis of rotation, and the axis of rotation setting is on the support body, and the axis of rotation rotationally sets up on cushion cap 10, and the axis of rotation sets up along vertical direction. The photovoltaic module is arranged on the frame body in a position-adjustable manner. The first drive mechanism is drivingly connected to the carriage for rotating the carriage relative to the platform 10. The light sensing module 40 is used for sensing a light signal, the light sensing module 40 is disposed on the supporting platform 10, and the light sensing module 40 is electrically connected to the first driving mechanism. Specifically, in the present embodiment, the first driving mechanism is a first motor, and the first motor is disposed on the bearing platform 10 and is in driving connection with the rotating shaft. The first motor drives the rotating shaft to rotate, the rotating shaft rotates to drive the support body to rotate in the horizontal direction, the first motor is matched with the light sensing module 40, the rotating angle of the support can be adjusted in real time, the photovoltaic module can automatically rotate along with the rotation of the sun, and the photovoltaic module is enabled to face the sun and receive the best solar radiation as long as possible.

By applying the technical scheme of the utility model, the bracket is arranged, so that the bracket rotates along with the rotation of the sun, and the bracket rotates to drive the photovoltaic module to rotate. Above-mentioned setting can change photovoltaic module's orientation for photovoltaic module rotates along with the rotation of sun, and then can make photovoltaic module face the sun as long as possible and receive the best solar radiation, promotes photovoltaic module's generating efficiency. And, the position of the relative support body of photovoltaic module is adjustable, so set up, can further increase the adjustment range to photovoltaic module's position, promote photovoltaic module's daylighting performance.

Specifically, the light sensing module 40 includes a photoresistor module and a signal amplifier. Specifically, the photo resistance module is used for sensing light signals, and after the light signals are sensed, the resistance value of the photo resistance module changes, and through comparison of resistance value changes, the photo resistance module analyzes the position of the sun and realizes tracking of the sun. Then, the signal is converted into a voltage signal through a signal amplifier and transmitted to the first motor, so that the first motor drives the bracket to rotate by a proper angle, and the photovoltaic module is ensured to face the sun as much as possible.

As shown in fig. 2 and 5, the photoresistor module is disposed in the middle of the platform 10 and is located on the center line of the length direction of the frame. The photoresistor module comprises a base body 41, four photosensitive elements 42 and dust covers 43, wherein the four photosensitive elements 42 are arranged on the base body 41 at annular intervals and are electrically connected with the signal amplifier, and the dust covers are arranged on the base body 41 and are covered on the peripheries of the four photosensitive elements 42. Four photosensitive element 42 annular interval sets up for on the photosensitive element 42 in different regions can be shone to the sun light along with time variation, and then can guarantee to judge the accuracy of sun illumination angle, promote the precision to photovoltaic module angle modulation.

Further, the photovoltaic device further comprises a guide structure, the guide structure is arranged between the bearing platform 10 and the frame body, and the guide structure is used for guiding the rotation of the frame body. The guide structure is arranged, so that the guide effect can be achieved on the rotation of the support, and the stability of the rotation of the support is guaranteed.

As shown in fig. 1 and 2, the frame body includes a support rod 21, a guide groove 11 is disposed on the bearing platform 10, the support rod 21 movably penetrates through the guide groove 11, the guide groove 11 is of an arc-shaped structure, the center of the guide groove 11 is located on the axis of the rotation shaft, and the support rod 21 is matched with the guide groove 11 to form a guide structure. Due to the arrangement, the extending direction of the guide groove 11 is the same as that of the support rod 21, and the smoothness of the moving process of the support rod 21 can be further ensured. And, the guide way 11 and the support bar 21 are arranged, so that the structure is simple and the processing is convenient.

In this embodiment, cushion cap 10 has the cavity, and the top surface of cushion cap 10 is provided with guide way 11, and guide way 11 and cavity intercommunication, and the support body still includes the actuating lever, and the actuating lever level sets up in the cavity, and the axis of rotation sets up on the actuating lever, and the vertical setting of bracing piece 21 is on the actuating lever, and bracing piece 21 and actuating lever have the interval in length direction's center. Further, the bottom of the support rod 21 is provided with a roller, and the roller is rollably disposed in the cavity, so that the support rod 21 is conveniently moved in the guide groove 11. The rotating shaft rotates to drive the driving rod to rotate, and the supporting rod 21 translates in the guide groove 11 when the driving rod rotates, so that the running stability of the device can be ensured. And the driving rod is arranged in the cavity, so that the whole occupied space of the device can be saved, and the structure compactness of the device is improved. And the setting of cavity can protect first motor and axis of rotation, guarantees its normal operating.

Specifically, the platform 10 is cast by a casting process. The support rod 21 can be fixedly connected with the drive rod in a clamping, inserting and welding mode. In this embodiment, the frame body further includes a fastener, and the support rod 21 is detachably connected to the driving rod through the fastener. The device is convenient to assemble and low in manufacturing cost.

Further, the support body includes a plurality of bracing pieces 21, and a plurality of bracing pieces 21 set up side by side on the actuating lever along the extending direction of actuating lever, have a plurality of guide ways 11 on the cushion cap 10, and a plurality of guide ways 11 use the axis of rotation as central symmetry and set up in the both sides of axis of rotation, and a plurality of guide ways 11 of every side set up on cushion cap 10 along the extending direction interval of actuating lever, and guide ways 11 and bracing piece 21 one-to-one set up. The structural strength of the frame body can be improved by the aid of the supporting rods 21, supporting effects on the photovoltaic assembly are guaranteed, and stability of the rotation process of the photovoltaic assembly can be improved.

Specifically, the frame body further includes a connection rod 31. Wherein, the extending direction of the connecting rod 31 is the same as the extending direction of the frame body, and the connecting rod 31 is rotatably arranged on the supporting rod 21, and the rotating axis of the connecting rod 31 is perpendicular to the axis of the rotating shaft. The photovoltaic modules are arranged on the connecting rod 31 side by side along the extending direction of the connecting rod 31, and the positions of the photovoltaic modules relative to the connecting rod 31 are adjustable. When the rotation angle of the frame body is adjusted, the connecting rod 31 is rotated according to the position of the sun, and the connecting rod 31 rotates to drive the photovoltaic module to rotate synchronously, so that the photovoltaic module faces the sun as far as possible. Above-mentioned setting for photovoltaic module can realize the rotation in vertical side, promotes photovoltaic module to the absorption effect of sunshine. Wherein, the top of the support rod 21 can be provided with a guide ring, the guide ring is coaxially arranged with the connecting rod 31, and the connecting rod 31 is rotatably arranged in the guide ring. The setting of guide ring can play direction and spacing effect to the rotation of connecting rod 31, and then can guarantee connecting rod 31 smooth and easy nature and the stationarity of rotation process.

Further, the photovoltaic device also comprises a second driving mechanism. The second driving mechanism is disposed on the frame body, and the second driving mechanism is in driving connection with the connecting rod 31 so as to enable the connecting rod 31 to rotate relative to the supporting rod 21. Specifically, the second driving mechanism is a second motor, the second motor is disposed on one of the support rods 21, and the second motor is drivingly connected to one end of the connecting rod 31 to rotate the connecting rod 31. The second motor is electrically connected to the photo sensing module 40. Specifically, the rotation axis direction of the connecting rod 31 is a horizontal direction, and is the same as the extending direction of the frame body. Second motor drive connecting rod 31 rotates, and connecting rod 31 rotates and drives photovoltaic module and rotate in vertical direction. So set up for after the light sensing module 40 senses the light signal, transmit this signal to the second motor, after the second motor receives this signal, drive connecting rod 31 and rotate suitable angle. So set up, can make connecting rod 31 realize automatic and rotate in real time along with the rotation of sun, and then can make photovoltaic module face to the sun as far as possible, promote photovoltaic device's power generation effect.

As shown in fig. 1 and 2, the rotation shaft may be provided at one end portion of the holder body in the longitudinal direction, or may be provided at the center of the holder body in the longitudinal direction. In this embodiment, the support body is located the axis of rotation at length direction's center, and photovoltaic module includes a plurality of photovoltaic boards 32, and a plurality of photovoltaic boards 32 use the axis of rotation as central symmetry setting on the support body. In this embodiment, the photovoltaic panels 32 are symmetrically disposed on the connecting rod 31 with the axis of the rotating shaft as the center, and the positions of the photovoltaic panels 32 relative to the connecting rod 31 are adjustable. Due to the arrangement, the distance between the two end parts in the length direction of the rack body and the center of the rack body is equal, and in the single rotation action process, the two end parts in the length direction of the rack body rotate relative to the bearing platform 10 at the same time, and the rotation amplitudes are the same. Therefore, the effect of tracking the sun can be well achieved by ensuring that the bracket rotates by a small amplitude. And, the axis that multiunit photovoltaic board used the axis of rotation as central symmetry and set up on the support body, can guarantee the homogeneity of the both ends atress of support body, guarantees support body pivoted stationarity, prolongs the life-span of support body.

As shown in fig. 2 and 4, the photovoltaic device further includes a plurality of telescoping mechanisms 50 and a plurality of sets of gimbal assemblies 60. The plurality of telescopic mechanisms 50 are arranged on the connecting rod 31 side by side along the extending direction of the connecting rod 31, an included angle is formed between each telescopic mechanism 50 and the connecting rod 31, the telescopic mechanisms 50 and the photovoltaic panels 32 are arranged in a one-to-one correspondence mode, and the telescopic mechanisms 50 are in driving connection with the photovoltaic panels 32 so that the photovoltaic panels 32 are close to or far away from the connecting rod 31. In this embodiment, the telescopic mechanism 50 is a driving cylinder, the driving cylinder is disposed on the connecting rod 31, the driving cylinder is obliquely installed on the connecting rod 31, and the driving end of the driving cylinder is located obliquely above the bottom of the driving cylinder. The driving cylinder is electrically connected with the light sensing module 40, when the light sensing module 40 senses a light signal, the light signal is transmitted to the driving cylinder, and the driving cylinder drives the photovoltaic panel 32 to be close to or far away from the connecting rod 31, so as to adjust the position of the photovoltaic panel 32 relative to the connecting rod 31.

In this embodiment, the universal rotating assembly 60 and the photovoltaic panel 32 are arranged in a one-to-one correspondence manner, the universal rotating assembly 60 is arranged between the telescoping mechanism 50 and the photovoltaic panel 32, and the universal rotating assembly 60 is in driving connection with the photovoltaic panel 32, so that the photovoltaic panel 32 rotates relative to the telescoping mechanism 50. Specifically, the universal rotating assembly 60 is electrically connected to the photo sensing module 40. When the light sensing module 40 senses a light signal, the light signal is transmitted to the universal rotating assembly 60, and the universal rotating assembly 60 drives the photovoltaic panel 32 to rotate relative to the telescoping mechanism 50. So set up, can make universal runner assembly 60 realize adjusting the multi-angle of photovoltaic board 32 in real time, promote photovoltaic board 32 to the absorption efficiency of sunshine, promote photovoltaic device's generating efficiency. Through telescopic machanism 50 and universal rotating assembly 60 mutually supporting, can adjust the form of arranging of a plurality of photovoltaic boards 32 to make a plurality of photovoltaic boards 32 arrange in order to be the arc structure of indent, and a plurality of photovoltaic boards 32 all towards the position of a certain on the perpendicular bisector of connecting rod 31. So set up, can promote a plurality of photovoltaic board 32's spotlight effect, promote photovoltaic device's generating efficiency. Specifically, the distance between the photovoltaic panels 32 and the connecting rod 31 is adjusted by the telescopic mechanism 50, so that the distances from the photovoltaic panels 32 to the connecting rod 31 gradually increase along the direction from the middle part to the end part of the connecting rod 31, and the photovoltaic panels 32 are arranged in an inwards concave arc structure. The angle of the photovoltaic panels 32 relative to the connecting rod 31 is adjusted through the universal rotating assembly 60, so that the photovoltaic panels 32 all face a certain position on the perpendicular bisector of the connecting rod 31, the light gathering effect of the photovoltaic panels 32 is improved, and the power generation efficiency of the photovoltaic device is improved.

The second embodiment of the utility model provides a photovoltaic system which comprises the photovoltaic device.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A photovoltaic device, comprising:

a bearing platform (10);

the support comprises a support body and a rotating shaft, the rotating shaft is arranged on the support body and can be rotatably arranged on the bearing platform (10), and the axis of the rotating shaft is arranged along the vertical direction;

the photovoltaic module is arranged on the frame body in a position-adjustable manner;

the first driving mechanism is in driving connection with the bracket so as to enable the bracket to rotate relative to the bearing platform (10);

the light sensing module (40) is used for sensing a light signal, the light sensing module (40) is arranged on the bearing platform (10), and the light sensing module (40) is electrically connected with the first driving mechanism.

2. Photovoltaic device according to claim 1, characterized in that it further comprises a guiding structure arranged between the platform (10) and the frame for guiding the rotation of the frame.

3. The photovoltaic device according to claim 2, wherein the rack body comprises a support rod (21), a guide groove (11) is formed in the bearing platform (10), the support rod (21) is movably arranged in the guide groove (11) in a penetrating manner, the guide groove (11) is of an arc-shaped structure, the center of the guide groove (11) is located on the axis of the rotating shaft, and the support rod (21) is matched with the guide groove (11) to form the guide structure.

4. The photovoltaic device according to claim 3, wherein the rack body further comprises a driving rod, the plurality of supporting rods (21) are arranged on the driving rod side by side along the extending direction of the driving rod, the plurality of guide grooves (11) are arranged on the bearing platform (10), the plurality of guide grooves (11) are symmetrically arranged on two sides of the rotating shaft by taking the axis of the rotating shaft as a center, the plurality of guide grooves (11) on each side are arranged on the bearing platform (10) at intervals along the extending direction of the driving rod, and the guide grooves (11) and the supporting rods (21) are arranged in a one-to-one correspondence manner.

5. The photovoltaic device of claim 3, wherein the rack further comprises:

connecting rod (31), the extending direction of connecting rod (31) with the extending direction of support body is the same, just connecting rod (31) rotationally sets up on bracing piece (21), the axis of rotation of connecting rod (31) with the axis of rotation is mutually perpendicular, photovoltaic module sets up on connecting rod (31), just photovoltaic module is relative the position of connecting rod (31) is adjustable.

6. The photovoltaic device of claim 5, further comprising:

the second driving mechanism is arranged on the frame body and is in driving connection with the connecting rod (31), so that the connecting rod (31) rotates relative to the supporting rod (21).

7. The photovoltaic device according to claim 1, wherein the frame body is centered on the axis of the rotation shaft in the longitudinal direction, the photovoltaic module includes a plurality of photovoltaic panels (32), and the plurality of photovoltaic panels (32) are symmetrically disposed on the frame body with the axis of the rotation shaft as the center.

8. The photovoltaic device of claim 7, further comprising:

a plurality of telescopic machanism (50), it is a plurality of telescopic machanism (50) are followed the extending direction of support body sets up side by side on the support body, telescopic machanism (50) the flexible direction with the contained angle has between the extending direction of support body, telescopic machanism (50) with photovoltaic board (32) one-to-one sets up, telescopic machanism (50) with photovoltaic board (32) drive is connected, so that photovoltaic board (32) are close to or keep away from the support body.

9. The photovoltaic device of claim 8, further comprising:

the photovoltaic panel driving device comprises a plurality of groups of universal rotating assemblies (60), wherein the universal rotating assemblies (60) and photovoltaic panels (32) are in one-to-one correspondence, the universal rotating assemblies (60) are arranged between the telescopic mechanisms (50) and the photovoltaic panels (32), the universal rotating assemblies (60) are in driving connection with the photovoltaic panels (32), and therefore the photovoltaic panels (32) are opposite to the telescopic mechanisms (50) in rotation.

10. A photovoltaic system comprising a photovoltaic device according to any one of claims 1 to 9.

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