Photovoltaic power generation device

Abstract

The utility model provides a photovoltaic power generation device, and the device comprises a plurality of photovoltaic units which are sequentially arranged, and the adjacent photovoltaic units are hinged to each other through a hinge part. The folding driving mechanism is used for driving the plurality of photovoltaic units to be changed into a folding state or an unfolding state; wherein each photovoltaic unit comprises a photovoltaic panel and a folding back plate, the folding back plate is hinged to the hinge piece, and the photovoltaic panel is detachably installed on the folding back plate. According to the photovoltaic unit, the folding back plate is hinged to the hinge piece, the photovoltaic panel is detachably installed on the folding back plate, when the photovoltaic panel is overhauled, the photovoltaic panel can be detached from the folding back plate, and finally replacement and maintenance of the photovoltaic panel can be achieved under the condition that the folding form of the photovoltaic unit is not damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clean energy, in particular to a photovoltaic power generation device. BACKGROUND

[0002] At present, the existing power energy sources mainly include thermal power, hydropower, nuclear power, wind power and solar power, etc. Due to the advantages of solar energy such as abundant resources, long service life, wide distribution, safety and cleanness, solar power generation is applied more and more widely. However, since a large area of photovoltaic panels needs to be laid, the current solar power generation device has the disadvantage of large land occupation, and how to solve this technical problem has become the direction of efforts of the technical personnel in the field. CONTENT OF THE INVENTION

[0003] The present application provides a photovoltaic power generation device, aiming at solving the above technical problems.

[0004] In a first aspect, the present application provides a photovoltaic power generation device, comprising:

[0005] a plurality of photovoltaic units arranged in sequence, adjacent photovoltaic units are hingedly connected to each other by a hinge piece;

[0006] a folding driving mechanism, the folding driving mechanism is used for driving the plurality of photovoltaic units to change into a folded state or an unfolded state;

[0007] wherein each photovoltaic unit comprises a photovoltaic panel and a folding backboard, the folding backboard is hingedly connected with the hinge piece, and the photovoltaic panel is detachably mounted on the folding backboard.

[0008] In some embodiments, the photovoltaic unit further comprises a first mounting buckle and a second mounting buckle, both ends of the folding backboard are respectively provided with a first clamping part and a second clamping part;

[0009] the first mounting buckle is fixed to one end of the photovoltaic panel, and the second mounting buckle is fixed to the other end of the photovoltaic panel;

[0010] the first mounting buckle is clamped with the first clamping part, and the second mounting buckle is clamped with the second clamping part.

[0011] In some embodiments, the first mounting buckle has a first clamping part and a second clamping part;

[0012] the first clamping part is clamped with the end of the photovoltaic panel along a first clamping direction, the second clamping part is clamped with the first clamping part along a second clamping direction, and the first clamping direction is not parallel to the second clamping direction.

[0013] In some embodiments, the second mounting buckle has a third clamping part and a fourth clamping part;

[0014] The third clamping portion is clamped with the end of the photovoltaic panel along a third clamping direction, the fourth clamping portion is clamped with the second clamping portion along a second clamping direction, and the third clamping direction is opposite to the first clamping direction.

[0015] In some embodiments, the two ends of the folding backboard respectively have a first hinge and a second hinge, each of which has a first rotation hole and a second rotation hole.

[0016] The first hinge of one of the adjacent folding backboards is rotatably installed in the first rotation hole, and the second hinge of the other folding backboard is rotatably installed in the second rotation hole.

[0017] In some embodiments, the hinge further has a first opening communicating with the first rotation hole and a second opening communicating with the second rotation hole, and the first opening and the second opening have a preset included angle between the opening directions thereof.

[0018] The first hinge of one of the adjacent folding backboards is inserted into the first rotation hole through the first opening, and the second hinge of the other folding backboard is inserted into the second rotation hole through the first opening.

[0019] In some embodiments, the opening angles of the first opening and the second opening are less than or equal to 90°.

[0020] When the folding driving mechanism drives the plurality of photovoltaic units to change to the folded state, the first hinge abuts against one side edge of the first opening, and the second hinge abuts against one side edge of the second opening.

[0021] When the folding driving mechanism drives the plurality of photovoltaic units to change to the unfolded state, the first hinge abuts against the other side edge of the first opening, and the second hinge abuts against the other side edge of the second opening.

[0022] In some embodiments, the hinge includes a first hinge and a second hinge.

[0023] The first hinge articulates the second hinge of the Nth folding backboard with the first hinge of the N+1th folding backboard, and the second hinge articulates the first hinge of the Mth folding backboard with the second hinge of the M+1th folding backboard.

[0024] Wherein N is an odd number, and M is an even number.

[0025] In some embodiments, the first hinge or the second hinge further has a moving connection part configured to install a roller so that the moving connection part moves on the corresponding sliding rail following the roller.

[0026] In some embodiments, the folding driving mechanism includes a fixing part and a traction part.

[0027] The fixing part has a fixing hinge part which is hinged with the first hinge part of the folding back plate of the head end;

[0028] The traction part has a moving hinge part which is hinged with the second hinge part of the folding back plate of the tail end.

[0029] The present application hingingly connects adjacent photovoltaic units in a plurality of photovoltaic units arranged in sequence by the hinge part, and drives the plurality of photovoltaic units to change into a folded state or an unfolded state by the folding driving mechanism. In the folded state, the plurality of photovoltaic units can be folded to occupy a smaller floor area, while in the unfolded state, the plurality of photovoltaic units can normally receive light and realize photovoltaic power generation. Therefore, when photovoltaic power generation is not performed or there is other demand for the site, the plurality of photovoltaic units can be driven to change into the folded state by the folding driving mechanism, thereby solving the technical problem that the solar power station occupies a large floor area.

[0030] Meanwhile, since each photovoltaic unit comprises a photovoltaic panel and a folding back plate, the folding back plate is hinged with the hinge part, and the photovoltaic panel is detachably mounted on the folding back plate. Therefore, the folding main body of each photovoltaic unit is the folding back plate, and when the photovoltaic panel is replaced and maintained, the photovoltaic panel can be detached from the folding back plate, and finally the replacement and maintenance of the photovoltaic panel can be realized without destroying the folding mode of the photovoltaic unit. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 A folding state schematic diagram of a photovoltaic power generation device in an embodiment of the present application is shown;

[0033] Figure 2 An unfolded state schematic diagram of a photovoltaic power generation device in an embodiment of the present application is shown;

[0034] Figure 3 An exploded schematic diagram of a photovoltaic unit in an embodiment of the present application is shown;

[0035] Figure 4 A structural schematic diagram of a hinge part in an embodiment of the present application is shown;

[0036] Figure 5 A schematic diagram of adjacent photovoltaic units hingingly connected by a first hinge part in an embodiment of the present application is shown;

[0037] Figure 6A schematic view showing that adjacent photovoltaic units are hinged by the second hinge in the embodiments of the present application is shown.

[0038] Wherein, 10 photovoltaic unit, 11 photovoltaic panel, 12 folding backboard, 121 first clamping part, 122 second clamping part, 123 first hinge part, 124 second hinge part, 13 first installation buckle, 131 first clamping part, 132 second clamping part, 14 second installation buckle, 141 third clamping part, 142 fourth clamping part, 20 hinge, 21 first rotating hole, 22 second rotating hole, 23 first opening, 24 second opening, 25 moving connection part, 201 first hinge, 202 second hinge, 30 folding driving mechanism, 31 fixing part, 311 fixed hinge part, 32 traction part, 321 moving hinge part. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0041] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0042] This application provides a photovoltaic power generation device, which will be described in detail below.

[0043] First, refer to Figure 1 as well as Figure 2 , Figure 1 This paper shows a schematic diagram of a folded state of a photovoltaic power generation device according to an embodiment of this application. Figure 2 A schematic diagram of an unfolded state of a photovoltaic power generation device according to an embodiment of this application is shown, wherein the photovoltaic power generation device includes multiple photovoltaic units 10, multiple hinges 20, and a folding drive mechanism 30.

[0044] Specifically, multiple photovoltaic units 10 are arranged sequentially, and adjacent photovoltaic units 10 are hinged to each other by hinges 20. For example, multiple photovoltaic units 10 are arranged as follows: Figure 2 Taking the arrangement from left to right as an example, the tail end of the first photovoltaic unit 10 and the head end of the second photovoltaic unit 10 are hinged to each other by a hinge 20, the tail end of the second photovoltaic unit 10 and the head end of the third photovoltaic unit 10 are hinged to each other by a hinge 20, the tail end of the third photovoltaic unit 10 and the head end of the fourth photovoltaic unit 10 are hinged to each other by a hinge 20, and so on.

[0045] In some embodiments of this application, the photovoltaic unit 10 is provided with hinge structures at both ends. The hinge component 20 refers to the hinge fitting component that is installed and cooperates with the hinge structure at the end of the photovoltaic unit 10. For example, when the photovoltaic unit 10 is provided with hinge shafts at both ends, the hinge fitting component can refer to the hinge sleeve that is installed on the hinge shaft, so that the hinge shaft of the photovoltaic unit 10 can rotate in the hinge sleeve. For another example, when the photovoltaic unit 10 is provided with hinge sleeves at both ends, the hinge fitting component can refer to the hinge bushing that is installed on the hinge sleeve, so that the hinge bushing of the photovoltaic unit 10 can rotate on the hinge shaft.

[0046] It can be understood that when the two ends of the photovoltaic unit 10 are not provided with the hinged structure, the hinge 20 can be a hinged structural member similar to a hinge, so as to hinge one leaf of the hinge to the upper photovoltaic unit 10 and hinge the other leaf of the hinge to the lower photovoltaic unit 10.

[0047] The folding driving mechanism 30 can drive the plurality of photovoltaic units 10 to change to the folded state or the unfolded state. In the process of changing from the unfolded state to the folded state, one of the two photovoltaic units 10 hinged to each other rotates counterclockwise around the hinge, the other rotates clockwise around the hinge, and the two photovoltaic units 10 hinged to each other rotate towards each other around the hinge. After the rotation is completed, each photovoltaic unit 10 will present an approximate vertical shape. The footprint of the plurality of photovoltaic units 10 is the sum of the cross-sectional areas of the plurality of photovoltaic units 10, so that the plurality of photovoltaic units 10 can occupy a smaller footprint in the folded state. In the process of changing from the folded state to the unfolded state, one of the two photovoltaic units 10 hinged to each other rotates counterclockwise around the hinge, the other rotates clockwise around the hinge, and the two photovoltaic units 10 hinged to each other rotate away from each other around the hinge. After the rotation is completed, each photovoltaic unit 10 will present an approximate horizontal shape, so that each photovoltaic unit 10 can normally receive light and realize photovoltaic power generation.

[0048] Exemplarily, the folding driving mechanism 30 can include but is not limited to a hydraulic telescopic rod, a pneumatic telescopic rod, a ball screw, a gear rack, and the like linear motion mechanism, and a motor driving the linear motion mechanism.

[0049] In some embodiments of the present application, the folding driving mechanism 30 can drive the photovoltaic unit 10 at the head or the tail of the plurality of photovoltaic units 10 to move, so that the plurality of photovoltaic units 10 changes to the folded state or the unfolded state. For example, when the photovoltaic unit 10 at the head of the plurality of photovoltaic units 10 is fixedly hinged to a building (such as a floor or a wall), the folding driving mechanism 30 can drive the photovoltaic unit 10 at the tail of the plurality of photovoltaic units 10 to move towards or away from the photovoltaic unit 10 at the head. When the photovoltaic unit 10 at the tail moves towards the photovoltaic unit 10 at the head, the plurality of photovoltaic units 10 can change to the folded state. Conversely, when the photovoltaic unit 10 at the tail moves away from the photovoltaic unit 10 at the head, the plurality of photovoltaic units 10 can change to the unfolded state.

[0050] It can be understood that, in some possible embodiments, the tail-end photovoltaic unit 10 in the plurality of photovoltaic units 10 can also be fixedly connected to the building (for example, the floor or the wall), and the folding driving mechanism 30 can also drive the head-end photovoltaic unit 10 in the plurality of photovoltaic units 10 to move towards or away from the tail-end photovoltaic unit 10, so as to drive the plurality of photovoltaic units 10 to change to the folded state or the unfolded state; or, in some possible embodiments, the folding driving mechanism 30 can also drive the head-end photovoltaic unit 10 and the tail-end photovoltaic unit 10 in the plurality of photovoltaic units 10 to move towards or away from each other, and when the tail-end photovoltaic unit 10 moves towards the head-end photovoltaic unit 10, the plurality of photovoltaic units 10 change to the folded state; conversely, when the tail-end photovoltaic unit 10 moves away from the head-end photovoltaic unit 10, the plurality of photovoltaic units 10 change to the unfolded state.

[0051] In the embodiments of the present application, referring to Figure 3 , Figure 3 An exploded schematic view of the photovoltaic unit 10 in the embodiments of the present application is shown, wherein each photovoltaic unit 10 comprises a photovoltaic panel 11 and a folding backboard 12, the folding backboard 12 is hingedly connected to the hinge 20, and the photovoltaic panel 11 is detachably mounted on the folding backboard 12, so that when the plurality of photovoltaic units 10 change to the folded state or the unfolded state, the folding backboard 12 can drive the photovoltaic panel 11 carried thereby to change to the vertical state or the horizontal state, and therefore the folding moving body of each photovoltaic unit 10 is the folding backboard 12 rather than the photovoltaic panel 11, and when the photovoltaic panel 11 is maintained, the photovoltaic panel 11 can be directly detached from the folding backboard 12, without the need to remove the entire photovoltaic unit 10, so that the maintenance of the photovoltaic panel 11 is realized without damaging the folding mode of the photovoltaic unit 10.

[0052] Exemplarily, the photovoltaic panel 11 can be, but is not limited to, a silicon-based photovoltaic panel, a thin-film photovoltaic panel or an organic photovoltaic panel, the silicon-based photovoltaic panel is, for example, a single-crystal silicon photovoltaic panel, a polycrystalline silicon photovoltaic panel or the like, and the thin-film photovoltaic panel is, for example, a copper-indium-gallium-selenium (CIGS) photovoltaic panel, a perovskite photovoltaic panel or the like; the photovoltaic panel 11 can be fixed on the folding backboard 12 in a detachable connection mode such as bolt connection or buckle connection.

[0053] In some embodiments of the present application, continuing to refer to Figure 3The photovoltaic unit 10 further comprises a first mounting buckle 13 and a second mounting buckle 14. The two ends of the folded back plate 12 are respectively provided with a first clamping portion 121 and a second clamping portion 122. The first mounting buckle 13 is fixed to one end of the photovoltaic panel 11, and the second mounting buckle 14 is fixed to the other end of the photovoltaic panel 11. Thus, the first mounting buckle 13 and the second mounting buckle 14 can respectively fix the opposite two ends of the photovoltaic panel 11. Since the first mounting buckle 13 is clamped with the first clamping portion 121, and the second mounting buckle 14 is clamped with the second clamping portion 122, the photovoltaic panel 11 can be detachably fixed to the folded back plate 12 through the first mounting buckle 13 and the second mounting buckle 14.

[0054] It should be noted that, in Figure 3 , the first mounting buckle 13 and the second mounting buckle 14 respectively fix the upper and lower ends of the photovoltaic panel 11, but are not limited thereto. In some possible embodiments, the first mounting buckle 13 and the second mounting buckle 14 can also respectively fix the left and right ends of the photovoltaic panel 11.

[0055] In some embodiments of the present application, continuing to refer to Figure 3 , the first mounting buckle 13 has a first clamping portion 131 and a second clamping portion 132. The first clamping portion 131 is clamped with the end of the photovoltaic panel 11 along a first clamping direction, the second clamping portion 132 is clamped with the first clamping portion 121 along a second clamping direction, and the first clamping direction is not parallel to the second clamping direction. For example, in Figure 3 , the first clamping portion 131 is clamped with the end of the photovoltaic panel 11 along a vertically downward direction, and the second clamping portion 132 is clamped with the first clamping portion 121 along a horizontal direction. That is, the first clamping direction is a vertical direction, the second clamping direction is a horizontal direction, and the first clamping direction is perpendicular to the second clamping direction. Thus, the first mounting buckle 13 and the photovoltaic panel 11, and the first mounting buckle 13 and the folded back plate 12 are not easy to separate, thereby ensuring the reliability of the installation of the photovoltaic panel 11 on the folded back plate 12.

[0056] In some embodiments of the present application, continuing to refer to Figure 3 , the second mounting buckle 14 has a third clamping portion 141 and a fourth clamping portion 142. The third clamping portion 141 is clamped with the end of the photovoltaic panel 11 along a third clamping direction, the fourth clamping portion 142 is clamped with the second clamping portion 122 along the second clamping direction, and the third clamping direction is opposite to the first clamping direction. For example, in Figure 3In the embodiment, the third engaging portion 141 engages with the end of the photovoltaic panel 11 in the vertically upward direction, the fourth engaging portion 142 engages with the second engaging portion 122 in the horizontal direction, the first engaging direction is the vertically downward direction, the second engaging direction is the horizontal direction, and the third engaging direction is the vertically upward direction. Therefore, the first engaging direction and the third engaging direction are perpendicular to the second engaging direction, and the first engaging direction is opposite to the third engaging direction. Thus, the second mounting buckle 14 is not easily separated from the photovoltaic panel 11 and the second mounting buckle 14 and the folding backboard 12, and the reliability of the photovoltaic panel 11 mounted on the folding backboard 12 can be ensured.

[0057] It can be understood that the engaging portions (for example, the first engaging portion 121 and the second engaging portion 122) and the engaging portions (for example, the first engaging portion 131, the second engaging portion 132, the third engaging portion 141, and the fourth engaging portion 142) in the above embodiment can be the buckle slot or the buckle, which can be adjusted according to actual needs by those skilled in the art, and the application is not limited specifically.

[0058] In some embodiments of the application, referring to Figure 4 , Figure 5 and Figure 6 , Figure 4 Fig. 20 shows a structural schematic diagram of the hinge 20 in the embodiment of the application, Figure 5 Fig. 21 shows a schematic diagram in which the adjacent photovoltaic units 10 are hinged by the first hinge 201 in the embodiment of the application, Figure 6 Fig. 22 shows a schematic diagram in which the adjacent photovoltaic units 10 are hinged by the second hinge 202 in the embodiment of the application. In the embodiment, the two ends of the folding backboard 12 respectively have the first engaging portion 123 and the second engaging portion 124. Each hinge 20 has the first rotating hole 21 and the second rotating hole 22. The first engaging portion 123 of one of the adjacent folding backboards 12 is rotatably installed in the first rotating hole 21, and the second engaging portion 124 of the other folding backboard 12 is rotatably installed in the second rotating hole 22.

[0059] For example, the plurality of photovoltaic units 10 are arranged in sequence from left to right, the first hinge part 123 is arranged at the left end of the folding backboard 12, and the second hinge part 124 is arranged at the right end of the folding backboard 12. For the folding backboard 12 of the first photovoltaic unit 10 and the folding backboard 12 of the second photovoltaic unit 10, the second hinge part 124 of the folding backboard 12 of the first photovoltaic unit 10 is installed in the second rotating hole 22 of the first hinge piece 20, and the first hinge part 123 of the folding backboard 12 of the second photovoltaic unit 10 is installed in the first rotating hole 21 of the first hinge piece 20. For the folding backboard 12 of the second photovoltaic unit 10 and the folding backboard 12 of the third photovoltaic unit 10, the second hinge part 124 of the folding backboard 12 of the second photovoltaic unit 10 is installed in the second rotating hole 22 of the second hinge piece 20, and the first hinge part 123 of the folding backboard 12 of the third photovoltaic unit 10 is installed in the first rotating hole 21 of the second hinge piece 20, and so on, so that the leading end and the tail end of the plurality of photovoltaic units 10 are hingedly connected in sequence through the corresponding hinge pieces 20.

[0060] At the same time, since the first hinge part 123 of one of the adjacent photovoltaic units 10 is rotatably installed in the first rotating hole 21, the second hinge part 124 of the other is rotatably installed in the second rotating hole 22, and the axes of the first rotating hole 21 and the second rotating hole 22 are not coaxial, the phenomenon of damage to the photovoltaic panel 11 due to extrusion near the hinge during folding can be avoided.

[0061] In some embodiments of the present application, the hinge piece 20 further has a first opening 23 communicating with the first rotating hole 21 and a second opening 24 communicating with the second rotating hole 22, the first opening 23 and the second opening 24 have a preset included angle between the opening directions thereof; the first hinge part 123 of one of the adjacent folding backboards 12 is inserted into the first rotating hole 21 through the first opening 23, and the second hinge part 124 of the other is inserted into the second rotating hole 22 through the first opening 23.

[0062] For example, continuing to refer to Figure 4 , Figure 5 and Figure 6 , the opening direction of the first opening 23 of the first hinge piece 201 is toward the lower left side, the opening direction of the second opening 24 of the first hinge piece 201 is toward the lower right side, the opening direction of the first opening 23 of the second hinge piece 202 is toward the upper left side, the opening direction of the second opening 24 of the second hinge piece 202 is toward the upper right side, the preset included angle is greater than 90° and less than 180°, so that the first opening 23 and the second opening 24 are located on the two sides of the hinge piece 20 respectively, and therefore the first hinge part 123 can be clamped into the first rotating hole 21 through the first opening 23, and the second hinge part 124 can be clamped into the second rotating hole 22 through the second opening 24, thereby facilitating the hinging of the plurality of folding backboards 12 in sequence.

[0063] In some embodiments of the present application, the opening angle of the first opening 23 and the second opening 24 is less than or equal to 90°.

[0064] It should be noted that when the plurality of photovoltaic units 10 changes from the unfolded state to the folded state, each photovoltaic unit 10 is converted from approximately horizontal to approximately vertical, so the rotation angle of the first hinge 123 and the second hinge 124 is less than or equal to 90°, and therefore the opening angle of the first opening 23 and the second opening 24 is set to be less than or equal to 90°, so that the edges of the openings can limit the rotation angle of the first hinge 123 and the second hinge 124, avoiding the phenomenon of damage to the photovoltaic panel 11 caused by excessive folding or unfolding.

[0065] For example, when the folding driving mechanism 30 drives the plurality of photovoltaic units 10 to change to the folded state, the first hinge 123 abuts against one side edge of the first opening 23, and the second hinge 124 abuts against one side edge of the second opening 24; and when the folding driving mechanism 30 drives the plurality of photovoltaic units 10 to change to the unfolded state, the first hinge 123 abuts against the other side edge of the first opening 23, and the second hinge 124 abuts against the other side edge of the second opening 24, so that the purpose of limiting the folded state and the unfolded state of the plurality of photovoltaic units 10 can be achieved, avoiding the phenomenon of damage to the photovoltaic panel 11 caused by excessive folding or unfolding.

[0066] In some embodiments of the present application, continuing to refer to Figure 2 , Figure 5 and Figure 6 , wherein the hinge 20 comprises a first hinge 201 and a second hinge 202; the first hinge 201 hinges the second hinge 124 of the Nth folding backboard 12 and the first hinge 123 of the N+1th folding backboard 12, and the second hinge 202 hinges the second hinge 124 of the Mth folding backboard 12 and the first hinge 123 of the M+1th folding backboard 12; wherein N is an odd number and M is an even number.

[0067] For example, the plurality of photovoltaic units 10 are arranged from left to right, the first hinge part 123 is arranged at the left end of the folding backboard 12, and the second hinge part 124 is arranged at the right end of the folding backboard 12. For the folding backboard 12 of the first photovoltaic unit 10 and the folding backboard 12 of the second photovoltaic unit 10, the second hinge part 124 of the folding backboard 12 of the first photovoltaic unit 10 is installed in the second rotating hole 22 of the first hinge piece 201, and the first hinge part 123 of the folding backboard 12 of the second photovoltaic unit 10 is installed in the first rotating hole 21 of the first hinge piece 201. For the folding backboard 12 of the second photovoltaic unit 10 and the folding backboard 12 of the third photovoltaic unit 10, the second hinge part 124 of the folding backboard 12 of the second photovoltaic unit 10 is installed in the second rotating hole 22 of the second hinge piece 202, and the first hinge part 123 of the folding backboard 12 of the third photovoltaic unit 10 is installed in the first rotating hole 21 of the second hinge piece 202. In this way, the first hinge piece 201 is connected to the second hinge part 124 of the Nth photovoltaic unit 10 and the first hinge part 123 of the N+1th photovoltaic unit 10, and the second hinge piece 202 is connected to the first hinge part 123 of the Mth photovoltaic unit 10 and the second hinge part 124 of the M+1th photovoltaic unit 10.

[0068] In some embodiments of the present application, the first hinge piece 201 or the second hinge piece 202 further has a moving connection part 25 configured to install a roller, so that the moving connection part 25 moves on the corresponding slide rail following the roller.

[0069] For example, referring to Figure 1 and Figure 2 each second hinge piece 202 has a moving connection part 25 which can be a connection hole, a connection shaft or the like, so that the moving connection part 25 is installed with a roller, and the moving connection part 25 moves on the corresponding slide rail (for example, the track arranged between the fixing piece 31 and the traction piece 32) following the roller. In the embodiment in which the second hinge piece 202 is connected to the first hinge part 123 of the Mth photovoltaic unit 10 and the second hinge part 124 of the M+1th photovoltaic unit 10, it can be seen that each photovoltaic unit 10 is connected to the corresponding second hinge piece 202 through at least the first hinge part 123 or the second hinge part 124, and finally each photovoltaic unit 10 can be reliably supported under the support of the roller, so as to ensure the stability of the plurality of photovoltaic units 10 in the folding or unfolding process.

[0070] In some embodiments of the present application, continuing to refer to Figure 1 and Figure 2The folding driving mechanism 30 comprises a fixed part 31 and a traction part 32. The fixed part 31 has a fixed hinge part 311 hinged with the first hinge part 123 of the folding backboard 12 at the head end. The traction part 32 has a moving hinge part 321 hinged with the second hinge part 124 of the folding backboard 12 at the tail end. For example, the plurality of photovoltaic units 10 are arranged in sequence from left to right, the first hinge part 123 is arranged at the left end of the folding backboard 12, and the second hinge part 124 is arranged at the right end of the folding backboard 12. The first hinge part 123 of the folding backboard 12 of the first photovoltaic unit 10 is hinged with the fixed hinge part 311, and the second hinge part 124 of the folding backboard 12 of the last photovoltaic unit 10 is hinged with the moving hinge part 321.

[0071] When the traction part 32 moves in the direction close to the fixed part 31, the second hinge part 124 of the folding backboard 12 of the last photovoltaic unit 10 rotates on the moving hinge part 321, and finally changes each photovoltaic unit 10 from the approximate horizontal state to the vertical state, so that the plurality of photovoltaic units 10 can change to the folded state. Conversely, when the traction part 32 moves in the direction away from the fixed part 31, the second hinge part 124 of the folding backboard 12 of the last photovoltaic unit 10 rotates on the moving hinge part 321, and finally changes each photovoltaic unit 10 from the approximate vertical state to the horizontal state, so that the plurality of photovoltaic units 10 can change to the unfolded state.

[0072] It can be understood that the hydraulic telescopic rod, the pneumatic telescopic rod, the ball screw, the gear and rack, and the motor driving the linear motion mechanism described above can be installed on the fixed part 31 and / or the traction part 32. Those skilled in the art can select according to actual needs, and the present application does not make specific limitations.

[0073] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the detailed description of other embodiments above, which will not be repeated here.

[0074] The above has described the basic concept. Obviously, the above detailed disclosure is only used as an example and does not constitute a limitation on the present application for those skilled in the art. Although it is not explicitly stated here, those skilled in the art can make various modifications, improvements and corrections to the present application. Such modifications, improvements and corrections are suggested in the present application, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0075] The above has carried out the detailed introduction to the photovoltaic power generation device provided by the embodiment of the application, the principle and implementation mode of the application are described by applying specific examples in this paper, the above embodiment is only used for helping understanding the method and core idea of the application; meanwhile, for the person skilled in the art, according to the idea of the application, the specific implementation mode and application range will have changes, and the above, the content of the specification should not be understood as the limitation of the application.

Claims

1. A photovoltaic power generation device, characterized in that, include: Multiple photovoltaic units are arranged in sequence, and adjacent photovoltaic units are hinged to each other by hinges; A folding drive mechanism is used to drive the multiple photovoltaic units to change to a folded state or an unfolded state. Each of the photovoltaic units includes a photovoltaic panel and a folding back panel, the folding back panel being hinged to the hinge member, and the photovoltaic panel being detachably mounted on the folding back panel.

2. The photovoltaic power generation device as described in claim 1, characterized in that, The photovoltaic unit also includes a first mounting buckle and a second mounting buckle, and the two ends of the folding back panel have a first latching part and a second latching part, respectively; The first mounting clip is fixed to one end of the photovoltaic panel, and the second mounting clip is fixed to the other end of the photovoltaic panel; The first mounting buckle engages with the first snap-fit ​​portion, and the second mounting buckle engages with the second snap-fit ​​portion.

3. The photovoltaic power generation device as described in claim 2, characterized in that, The first mounting clip has a first engaging portion and a second engaging portion; The first engaging portion engages with the end of the photovoltaic panel along the first engaging direction, and the second engaging portion engages with the first engaging portion along the second engaging direction, wherein the first engaging direction and the second engaging direction are not parallel.

4. The photovoltaic power generation device as described in claim 3, characterized in that, The second mounting clip has a third engaging portion and a fourth engaging portion; The third engaging portion engages with the end of the photovoltaic panel along the third engaging direction, the fourth engaging portion engages with the second engaging portion along the second engaging direction, and the third engaging direction is opposite to the first engaging direction.

5. The photovoltaic power generation device as described in claim 1, characterized in that, The two ends of the folding back panel have a first hinge portion and a second hinge portion respectively, and each hinge component has a first rotating hole and a second rotating hole. The first hinge portion of one of the adjacent folding back panels is rotatably mounted in the first rotating hole, and the second hinge portion of the other is rotatably mounted in the second rotating hole.

6. The photovoltaic power generation device as described in claim 5, characterized in that, The hinge also has a first opening communicating with the first rotating hole and a second opening communicating with the second rotating hole, and there is a preset angle between the opening directions of the first opening and the second opening; The first hinge portion of one of the adjacent folding back panels is inserted into the first rotating hole through the first opening, and the second hinge portion of the other is inserted into the second rotating hole through the first opening.

7. The photovoltaic power generation device as described in claim 6, characterized in that, The opening angles of the first opening and the second opening are less than or equal to 90°; When the folding drive mechanism drives the multiple photovoltaic units to change to a folded state, the first hinge part abuts against one side edge of the first opening, and the second hinge part abuts against one side edge of the second opening. When the folding drive mechanism drives the multiple photovoltaic units to change to an unfolded state, the first hinge abuts against the other edge of the first opening, and the second hinge abuts against the other edge of the second opening.

8. The photovoltaic power generation device as described in claim 5, characterized in that, The hinge includes a first hinge and a second hinge; The first hinge member hinges the second hinge portion of the Nth folding back panel to the first hinge portion of the N+1th folding back panel, and the second hinge member hinges the second hinge portion of the Mth folding back panel to the first hinge portion of the M+1th folding back panel. Where N is an odd number and M is an even number.

9. The photovoltaic power generation device as described in claim 8, characterized in that, The first hinge or the second hinge also has a movable connection portion, which is configured to mount a roller so that the movable connection portion moves along the roller on a corresponding slide rail.

10. The photovoltaic power generation device as described in claim 8, characterized in that, The folding drive mechanism includes a fixing component and a traction component; The fastener has a fixed hinge portion, which is hinged to the first hinge portion of the folding back plate at the head end. The traction member has a movable hinge portion, which is hinged to a second hinge portion of the folded back plate at the tail end.

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