Photovoltaic power generation device

Abstract

The utility model provides a photovoltaic power generation device, and the device comprises a photovoltaic module which is suitable for absorbing light for power generation. The adjusting mechanism comprises at least three telescopic pieces, each telescopic piece is movably connected with the photovoltaic module, the projection of the connecting point of each telescopic piece and the photovoltaic module in the vertical direction can define a plane, and the telescopic pieces can stretch out and draw back in the length direction of the telescopic pieces; the adjusting mechanism can drive the photovoltaic assembly to rotate around the two rotating shafts through stretching and retracting of the telescopic piece, and the two rotating shafts are not parallel. The photovoltaic power generation device provided by the utility model can drive the photovoltaic panel to carry out multi-angle adjustment, so that the photovoltaic panel can be directly irradiated by sunlight, the luminous flux is improved, and the energy conversion rate is improved.

Description

Technical Field

[0001] This disclosure relates to the field of photovoltaic power generation technology, and in particular to a photovoltaic power generation device. Background Technology

[0002] Solar energy has become a focus of attention in the energy industry due to its unique advantages. Solar energy is one of the most important new energy sources being researched today, and photovoltaic power generation devices are receiving increasing attention and application from all sectors of society.

[0003] Solar photovoltaic power generation devices are generally fixed and cannot be adjusted according to changes in the angle of sunlight, thus affecting the utilization rate of solar energy and further affecting the photoelectric conversion rate.

[0004] Chinese Patent No. CN217213510U discloses a photovoltaic panel angle adjustment device, including a bracket, a photovoltaic panel, and an angle adjustment mechanism. The brackets are arranged in a row, and the photovoltaic panels are the same number as the brackets and are rotatably connected to the upper end of the brackets. The connecting rods in the angle adjustment mechanism connect the upper ends of one side of the photovoltaic panels together, and all photovoltaic panels are rotatably connected to the connecting rods. The length of the adjusting rods can be set to form a parallelogram with the connecting rods and the half of the photovoltaic panel located above the rotation axis. The angle of the adjusting rods is adjusted by the sliding sleeve on the output end of the linear motor, and the angle of the photovoltaic panels changes accordingly due to the connecting rods, thus completing the angle adjustment of the photovoltaic panels.

[0005] Regarding the aforementioned technologies, the inventors discovered that the photovoltaic panel angle adjustment device can only achieve adjustment in one direction, either east-west or north-south, and cannot perform multi-angle adjustment, thus affecting the energy conversion efficiency of the photovoltaic panel. Utility Model Content

[0006] One of the technical problems that this disclosure aims to solve is that photovoltaic panels can only rotate in one direction, which affects the energy conversion efficiency of photovoltaic panels.

[0007] To solve the above-mentioned technical problems, this disclosure provides a photovoltaic power generation device, including a photovoltaic module suitable for absorbing light to generate electricity; and an adjustment mechanism including at least three telescopic members, each telescopic member being movably connected to the photovoltaic module, and the projection of the connection point between each telescopic member and the photovoltaic module in the vertical direction can enclose a plane, the telescopic members can extend and retract along their own length direction, and the adjustment mechanism can drive the photovoltaic module to rotate around two rotating axes through the extension and retraction of the telescopic members, and the two rotating axes are not parallel.

[0008] In some embodiments, the photovoltaic module includes a photovoltaic panel and a rigid frame, with a telescopic member rotatably connected to the rigid frame.

[0009] In some embodiments, the rigid frame includes an edge-wrapping structure surrounding the edge of the photovoltaic panel, and the rigid frame is provided with a plurality of universal joint connectors located at the top corners and / or edges of the edge-wrapping structure, with telescopic members connected to the corresponding universal joint connectors.

[0010] In some embodiments, a plurality of drainage holes are provided on the side of the rigid frame.

[0011] In some embodiments, the telescopic component includes a telescopic cylinder, and one end of the telescopic cylinder connected to the universal joint connector is provided with a universal joint connector head, and the universal joint connector head can rotate with the universal joint connector head as the rotation point.

[0012] In some embodiments, the adjustment mechanism further includes a connecting assembly and a base frame, with the telescopic cylinder connected to the connecting assembly and rotatably connected to the base frame via the connecting assembly.

[0013] In some embodiments, the connection assembly includes a connecting seat and a connector. The connecting seat is mounted on the base frame, and the connector is connected to one end of the telescopic cylinder facing away from the universal joint connector. The connector is rotatably connected to the connecting seat.

[0014] In some embodiments, the connector includes a mounting base and a connecting ball head, the mounting base being connected to the telescopic cylinder, and the connecting ball head being disposed on the side of the mounting base facing away from the telescopic cylinder.

[0015] In some embodiments, a detection component is also included, which is signal-connected to the telescopic member and is adapted to detect the angle between the light source and the base frame.

[0016] In some embodiments, the detection component includes an electrical control box, a tracker base plate, and a light tracker. The electrical control box and the tracker base plate are both mounted on a base frame. The light tracker is mounted on the tracker base plate. The light tracker is signal-connected to the electrical control box so as to transmit angle information to the electrical control box. The electrical control box is signal-connected to the telescopic components, and the electrical control box can control the extension and retraction of each telescopic component according to the angle information transmitted by the light tracker.

[0017] The present disclosure provides a photovoltaic power generation device, including a photovoltaic module suitable for absorbing light to generate electricity. An adjustment mechanism is connected to the photovoltaic module, consisting of at least three telescopic members. Each telescopic member is movably connected to the photovoltaic module and can extend or retract along its own length. Simultaneously, the vertical projection of the connection point between the telescopic member and the photovoltaic module can enclose a plane. This allows the adjustment mechanism to drive the photovoltaic module to rotate around two non-parallel axes, enabling multi-angle adjustment to adapt to different light irradiation angles at different times, thereby reducing the incident and reflection angles of light, improving the light capture rate of the photovoltaic module, and ultimately increasing the energy conversion rate. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the photovoltaic power generation device disclosed in the embodiments of this disclosure;

[0020] Figure 2 This is a schematic diagram of the photovoltaic power generation device disclosed in this embodiment from another angle;

[0021] Figure 3 This is disclosed in the embodiments of this disclosure. Figure 2 Enlarged view of part A;

[0022] Figure 4 This is disclosed in the embodiments of this disclosure. Figure 2 Enlarged view of section B.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Photovoltaic module; 11. Photovoltaic panel; 12. Rigid frame; 121. Edge-wrapping structure; 1211. Drainage hole; 122. Reinforcing rib; 2. Adjustment mechanism; 21. Telescopic component; 211. Telescopic cylinder; 212. Universal joint connector; 22. Universal joint connector seat; 23. Connecting component; 231. Connecting seat; 232. Connecting component; 2321. Mounting base; 2322. Connecting ball joint; 3. Detection component; 31. Electrical control box; 32. Tracker base plate; 33. Light tracker; 4. Base frame. Detailed Implementation

[0025] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0026] These embodiments are provided to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0027] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] Furthermore, "vertical" is not strictly vertical, but rather within the allowable margin of error. Similarly, "parallel" is not strictly parallel, but also within the allowable margin of error. Words such as "include" or "contain" mean that the element preceding the word covers the element listed after it, without excluding the possibility of including other elements as well.

[0029] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances.

[0030] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification. Figures 1 to 4As shown, this disclosure provides a photovoltaic power generation device, including: a photovoltaic module 1, the light-facing surface of the photovoltaic module 1 is adapted to absorb sunlight and convert light energy into electrical energy, and the back surface of the photovoltaic module 1 is provided with an adjustment mechanism 2. The adjustment mechanism 2 can adjust the photovoltaic module 1 at multiple angles so that sunlight can directly hit the photovoltaic module 1, thereby improving the light capture rate of the photovoltaic module 1 and thus improving the power generation efficiency of the photovoltaic module 1. Specifically, the adjustment mechanism 2 includes at least three telescopic members 21, each of which is movably connected to the photovoltaic module 1. That is, the telescopic members 21 can rotate around the connection point between the telescopic member 21 and the photovoltaic module 1. At the same time, if the connection points of the telescopic members 21 and the photovoltaic module 1 are projected vertically onto the same horizontal plane, they can form a polygon. Meanwhile, the telescopic component 21 can extend and retract along its own length direction. This allows the photovoltaic module 1 to rotate around two non-parallel rotation axes when multiple telescopic components 21 extend and retract. Therefore, the photovoltaic module 1 can rotate at multiple angles. Compared with rotating in a certain direction, the adjustment component further reduces the refraction angle between the photovoltaic module 1 and sunlight, which helps to improve the utilization rate of light energy and improve power generation efficiency.

[0032] like Figure 2 and Figure 3 As shown, to reduce the possibility of damage to the photovoltaic module 1 due to stress caused by the expansion and contraction of the telescopic member 21, the photovoltaic module 1 consists of a photovoltaic panel 11 and a rigid frame 12. The photovoltaic panel 11 absorbs the light energy of sunlight, while the rigid frame 12 includes an edging structure 121 and reinforcing ribs 122. The edging structure 121 is arranged around the edge of the photovoltaic panel 11, and the reinforcing ribs 122 are connected to the edging structure 121 and can abut against the back side of the photovoltaic panel 11 to support the photovoltaic panel 11. The adjustment mechanism 2 also includes universal joint connecting seats 22 corresponding to the telescopic member 21. The universal joint connecting seats 22 are located at the top corners and / or edges of the edging structure 121. In one embodiment of this disclosure, the photovoltaic module 1 is rectangular, and the universal joint connecting seats 22 are located at the four top corners of the photovoltaic module 1. The telescopic member 21 is rotatably connected to the universal joint connecting seats 22. This structure allows the telescopic component 21 to extend and retract, and then drive the photovoltaic panel 11 to rotate through the rigid frame 12 when the adjustment component adjusts the angle of the photovoltaic module 1. Compared with several telescopic components 21 directly driving the photovoltaic panel 11 to rotate, the rigid frame 12 can enhance the structural strength of the photovoltaic module 1, while the reinforcing rib 122 further enhances the structural strength of the photovoltaic module 1, thereby reducing the possibility of the photovoltaic module 1 deforming under stress.

[0033] like Figure 3As shown, the edging structure 121 has a plurality of drainage holes 1211. The drainage holes 1211 extend from the side of the edging structure 121 close to the photovoltaic panel 11 and through to the side of the edging structure 121 away from the photovoltaic panel 11. When there is rainwater on the photovoltaic panel 11, the rainwater can be discharged through the drainage holes 1211 to reduce the impact of rainwater on the photovoltaic panel 11's absorption of light energy.

[0034] like Figure 1 As shown, the adjustment mechanism 2 also includes a base frame 4 and a connecting assembly 23. The connecting assembly 23 is rotatably connected to the base frame 4, and the telescopic components 21 are all connected to the connecting assembly 23. That is, the telescopic components 21 are rotatably connected to the base frame 4 through the connecting assembly 23. When the telescopic components 21 extend and retract to drive the photovoltaic module 1 to rotate, the telescopic components 21 can also rotate around the connection point between the connecting assembly 23 and the base frame 4 to match the rotation of the photovoltaic module 1. This reduces the possibility of the telescopic components 21 bending and failing.

[0035] like Figure 2 , Figure 3 and Figure 4 As shown, the telescopic component 21 includes a telescopic cylinder 211 and a universal joint connector 212. The telescopic cylinder 211 can be a pneumatic cylinder, hydraulic cylinder, or electric cylinder, etc. The telescopic cylinder 211 is rotatably connected to the base frame 4 via a connecting assembly 23. The universal joint connector 212 is located at the end of the output rod of the telescopic cylinder 211 away from the base frame 4 and is connected to the corresponding universal joint connector 22. Specifically, the universal joint connector 212 can be a ball joint structure, and the corresponding universal joint connector 22 has a ball joint on the side facing away from the photovoltaic panel 11. The ball joint structure of the universal joint connector 212 is installed in the ball socket of the universal joint connector 22, so that the universal joint connector 22 can rotate relative to the universal joint connector 212 with the center of the universal joint connector 212 as the rotation point, realizing the universal rotation connection between the two. Thus, when the telescopic member 21 drives the photovoltaic module 1 to rotate by telescopic movement, the connection points between the telescopic member 21 and the rigid frame 12 and the base frame 4 can all rotate in all directions, which can reduce the possibility of the telescopic member 21 bending and failing.

[0036] Specifically, when the relative position of the sun and the photovoltaic power generation device changes, the output rod of the telescopic cylinder 211 extends or retracts. At this time, the telescopic cylinder 211 rotates around the connection point between the connecting component 23 and the base frame 4, and the universal joint connector 22 can rotate around the center of the universal joint connector 212, so that the telescopic component 21 and the corresponding connecting component 23 are always connected between the photovoltaic module 1 and the base frame 4. At the same time, the photovoltaic panel 11 rotates along two non-parallel rotating axes, so that the photovoltaic panel 11 can be directly exposed to sunlight, thereby increasing the light flux and reducing the possibility that the light capture rate will decrease due to the excessive incident angle of sunlight on the photovoltaic panel 11, thus affecting the power generation efficiency.

[0037] like Figure 2 and Figure 4 As shown, the connecting assembly 23 includes a connecting seat 231 and a connecting member 232. In one embodiment of this disclosure, both the base frame 4 and the photovoltaic module 1 are rectangular, so four telescopic members 21 can be provided, and the connecting seat 231 can be provided on any three of the four apex corners of the base frame 4, so that the telescopic members 21 at these three locations can be rotatably connected to the base frame 4 through the cooperation of the connecting member 232 and the connecting seat 231. The connecting member 232 is provided at the end of the telescopic cylinder 211 facing away from the universal joint connector 212. The connecting member 232 includes a mounting seat 2321 and a connecting ball head 2322, wherein the mounting seat 2321 is detachably installed at the end of the telescopic cylinder 211 facing away from the universal joint connector 212, which facilitates the disassembly and assembly of the telescopic cylinder 211 for maintenance, and the connecting ball head 2322 is provided on the side of the mounting seat 2321 facing away from the telescopic cylinder 211. The connecting seat 231 has a ball socket on the side facing away from the base frame 4. The connecting ball head 2322 is rotatably disposed in the ball socket. The mounting seat 2321 is connected to the connecting ball head 2322 at the opening of the connecting seat 231. The connecting ball head 2322 can rotate around its own center. Therefore, the telescopic cylinder 211 can also rotate around the center of the connecting ball head 2322. This can reduce the situation where the connecting component 23 disengages from the base frame 4 when the telescopic component 21 drives the photovoltaic module 1 to rotate, causing the adjustment mechanism 2 to fail. The other telescopic component 21 is directly fixedly connected to the base frame 4, so that the stability of the entire photovoltaic power generation device can be ensured through the fixed connection between the telescopic component 21 and the base frame 4.

[0038] like Figure 1 and Figure 2 As shown, to reduce errors caused by manual detection of the angle between sunlight and photovoltaic panel 11, the photovoltaic power generation device also includes a detection component 3. The detection component 3 includes an electrical control box 31, a tracker mounting plate 32, and a light tracker 33. Both the electrical control box 31 and the tracker mounting plate 32 are mounted on the base frame 4. The light tracker 33 is mounted on the tracker mounting plate 32 and is signal-connected to the electrical control box 31. The electrical control box 31 is signal-connected to the telescopic component 21. The light tracker 33 can be a differential pressure tracker, a photoelectric sensor-type solar tracker, or a photoelectric sensor-type solar tracker, selected based on the application scenario of the photovoltaic power generation device. The tracker mounting plate 32 is located on the side of the base frame 4. Besides providing a mounting location for the light tracker 33, it also reduces the possibility of errors in sunlight detection caused by the photovoltaic module 1 blocking the conductors.

[0039] Multiple ray trackers 33 detect sunlight to determine the angle between the sunlight and the photovoltaic power generation device. This angle information is then transmitted to the control box 31. The control box 31 sends a signal to drive multiple telescopic components 21 to extend or retract, rotating the photovoltaic module 1. This allows the photovoltaic panel 11 to receive direct sunlight, increasing luminous flux and reducing the possibility of excessive sunlight incidence on the photovoltaic panel 11 leading to reduced light capture efficiency and impacting power generation. To reduce the risk of damage to the ray trackers 33 due to prolonged sunlight detection, the ray trackers 33 can be set to detect sunlight at intervals. If the angle between the sunlight and the photovoltaic panel 11 exceeds 5 degrees, a signal is sent to the control box 31. This extends the lifespan of the ray trackers 33 and reduces the possibility of damage caused by excessive extension or retraction of the drive cylinder 211.

[0040] In summary, the photovoltaic power generation device disclosed herein has the following advantages: After the photovoltaic power generation device is set up in a place with sufficient sunlight by the base frame 4, the sunlight shines on the light tracker 33. The light tracker 33 detects the sunlight to determine the angle between the sunlight and the photovoltaic power generation device, and then transmits the angle information between the sunlight and the photovoltaic power generation device to the electrical control box 31. The electrical control box 31 sends a signal and drives the output rods of multiple telescopic cylinders 211 to extend or shorten respectively. Then, the ball joint 2322 rotates around its own center to drive the telescopic component 21 to rotate. The universal joint connector 22 rotates around the center of the universal joint connector 212 to drive the photovoltaic panel 11 to rotate around two non-parallel rotating axes, so that the sunlight shines perpendicularly on the center of the photovoltaic panel 11. This allows the photovoltaic panel 11 to be directly exposed to sunlight, thereby increasing the light flux and reducing the possibility that the incident angle of sunlight on the photovoltaic panel 11 is too large, which would reduce the light capture rate and affect the power generation efficiency.

[0041] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0042] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A photovoltaic power generation device, characterized in that, include: Photovoltaic module (1), suitable for absorbing light to generate electricity; The adjustment mechanism (2) includes at least three telescopic members (21), each of which is movably connected to the photovoltaic module (1), and the projection of the connection point of each telescopic member (21) and the photovoltaic module (1) in the vertical direction can enclose a plane. The telescopic member (21) can extend and retract along its own length direction. The adjustment mechanism (2) can drive the photovoltaic module (1) to rotate around two rotating axes through the extension and retraction of the telescopic member (21), and the two rotating axes are not parallel.

2. The photovoltaic power generation device according to claim 1, characterized in that, The photovoltaic module (1) includes a photovoltaic panel (11) and a rigid frame (12), and the telescopic member (21) is rotatably connected to the rigid frame (12).

3. The photovoltaic power generation device according to claim 2, characterized in that, The rigid frame (12) includes an edge-wrapping structure (121) surrounding the edge of the photovoltaic panel (11). The rigid frame (12) is provided with a plurality of universal joint connectors (22). The universal joint connectors (22) are located at the top corner and / or edge of the edge-wrapping structure (121). The telescopic member (21) is connected to the corresponding universal joint connector (22).

4. The photovoltaic power generation device according to claim 2, characterized in that, The rigid frame (12) has several drainage holes (1211) on its side.

5. The photovoltaic power generation device according to claim 3, characterized in that, The telescopic component (21) includes a telescopic cylinder (211), and one end of the telescopic cylinder (211) connected to the universal joint connecting seat (22) is provided with a universal joint connector (212). The universal joint connecting seat (22) can rotate with the universal joint connector (212) as the rotation point.

6. The photovoltaic power generation device according to claim 5, characterized in that, The adjustment mechanism (2) further includes a connecting component (23) and a base frame (4). The telescopic cylinder (211) is connected to the connecting component (23) and is rotatably connected to the base frame (4) via the connecting component (23).

7. The photovoltaic power generation device according to claim 6, characterized in that, The connecting assembly (23) includes a connecting seat (231) and a connector (232). The connecting seat (231) is mounted on the base frame (4). The connector (232) is connected to one end of the telescopic cylinder (211) facing away from the universal joint connector (212). The connector (232) is rotatably connected to the connecting seat (231).

8. The photovoltaic power generation device according to claim 7, characterized in that, The connector (232) includes a mounting base (2321) and a connecting ball head (2322). The mounting base (2321) is connected to the telescopic cylinder (211), and the connecting ball head (2322) is located on the side of the mounting base (2321) facing away from the telescopic cylinder (211).

9. The photovoltaic power generation device according to claim 6, characterized in that, It also includes a detection component (3), which is signal-connected to the telescopic component (21), and the detection component (3) is adapted to detect the angle between the light and the base frame (4).

10. The photovoltaic power generation device according to claim 9, characterized in that, The detection component (3) includes an electrical control box (31), a tracker seat (32), and a light tracker (33). The electrical control box (31) and the tracker seat (32) are both mounted on the base frame (4). The light tracker (33) is mounted on the tracker seat (32). The light tracker (33) is signal-connected to the electrical control box (31) so as to transmit angle information to the electrical control box (31). The electrical control box (31) is signal-connected to the telescopic component (21). The electrical control box (31) can control the extension and retraction of each telescopic component (21) according to the angle information transmitted by the light tracker (33).

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