A foldable photovoltaic tracking device

Abstract

The utility model relates to photovoltaic field, concretely relates to a folding photovoltaic tracking device, including stand; rotating component, rotating component includes rotating part and fixed part, and fixed part is fixedly connected with stand, and rotating part is connected with fixed part, and rotating part can rotate about stand relative to fixed part, and fold component, fold component includes first fold component and second fold component who set up in rotating part both sides symmetry, first fold component includes first support and first push rod, and first support is in turn head and tail along the length direction of first support, and first support is hinged with rotating part through head, and one end of first push rod is hinged with the tail of first support, and the other end of first push rod is hinged with rotating part, and second fold component includes second support and second push rod, photovoltaic board includes the first photovoltaic board of being located at first support and the second photovoltaic board of being located at second support, under the action of rotating component and first push rod, second push rod, photovoltaic board tracks sunlight.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaics, and in particular to a foldable photovoltaic tracking device. Background Technology

[0002] With the development of social technology, environmental pollution has become increasingly serious, and the contradiction between green mountains and clear waters and economic growth has become increasingly apparent. In order to ensure green mountains and clear waters while not affecting economic growth, it is an inevitable trend to reduce the proportion of petrochemical energy and increase the utilization of renewable energy.

[0003] Existing renewable energy sources, such as solar and wind power, are mostly concentrated in remote areas to reduce land costs, while energy consumption is concentrated in cities, which in turn leads to increased transportation costs.

[0004] To reduce energy transmission costs, distributed photovoltaic (PV) systems have been proposed to bring solar-powered photovoltaic devices closer to end users. However, in application scenarios suitable for distributed PV, such as roads, parks, and courtyards, increasing the power generation of individual PV devices has become the industry's primary goal.

[0005] To increase the power generation of a single photovoltaic (PV) device, some solutions have proposed photovoltaic tracking to align the PV panels as perpendicular to the sunlight as possible. Others have proposed directly increasing the area of ​​the PV panels in a single PV device by enlarging their size to capture more solar energy, thereby effectively increasing the power generation of the single PV device.

[0006] However, increasing the area of ​​the photovoltaic panels in a single photovoltaic device increases the overall weight and windward area of ​​the device, posing a significant threat to the stability of the supporting structure.

[0007] Therefore, finding a balance between increasing the power generation area and maintaining structural stability has become a key issue that urgently needs to be addressed in the development of solar energy technology. Utility Model Content

[0008] To address the issue of balancing increased power generation area with stability, this invention proposes a foldable photovoltaic tracking device.

[0009] A foldable photovoltaic tracking device is proposed, including a support column;

[0010] A rotating assembly, comprising a rotating part and a fixed part, wherein the fixed part is fixedly connected to the column, the rotating part is connected to the fixed part, and the rotating part is capable of rotating about the column relative to the fixed part;

[0011] The folding assembly includes a first folding assembly and a second folding assembly symmetrically arranged on both sides of the rotating part.

[0012] The first folding assembly includes a first support rod and a first push rod. Along the length of the first support rod, the first support rod has a head and a tail. The first support rod is hinged to the rotating part through the head. One end of the first push rod is hinged to the tail of the first support rod, and the other end of the first push rod is hinged to the rotating part.

[0013] The second folding assembly includes a second support rod and a second push rod;

[0014] The photovoltaic panel includes a first photovoltaic panel disposed on the first support rod and a second photovoltaic panel disposed on the second support rod;

[0015] Under the action of the rotating assembly and the first and second push rods, the photovoltaic panel tracks sunlight.

[0016] Preferably, the first support rod further includes a middle section disposed between the head and the tail; the first folding assembly further includes a third push rod, one end of which is hinged to the middle section and the other end is hinged to the first photovoltaic panel.

[0017] Preferably, the first photovoltaic panel is hinged to the head portion, or the first photovoltaic panel is hinged to the rotating portion.

[0018] Preferably, the assembly further includes a bracket, which is fixedly connected to the rotating part, and the flipping component is connected to the bracket.

[0019] Preferably, the overall structure of the bracket is "X" shaped, and it is fixedly connected to the rotating part through its central part.

[0020] Preferably, there is at least one set of the first folding component and the second folding component.

[0021] Preferably, the rotating component is driven by a helical drive.

[0022] Preferably, the first push rod or the second push rod is any one of an electric push rod, a pneumatic push rod, or a hydraulic push rod.

[0023] Preferably, the first photovoltaic panel includes a first main board and a first sub-board hinged to at least one side of the first main board, and also includes a first flip structure adapted to the number of the first sub-boards. Under the action of the first flip structure, the first photovoltaic panel has a working state and a folded state. In the working state, the light-receiving surface of the first sub-board and the light-receiving surface of the first main board face the same direction. In the folded state, the light-receiving surface of the first sub-board and the light-receiving surface of the first main board face opposite directions.

[0024] And / or,

[0025] The second photovoltaic panel includes a second main board and a second sub-board hinged to at least one side of the second main board, and also includes a second flip structure adapted to the number of the second sub-boards. Under the action of the second flip structure, the second photovoltaic panel has a working state and a folded state. In the working state, the light-receiving surfaces of the second sub-board and the second main board face the same direction. In the folded state, the light-receiving surfaces of the second sub-board and the second main board face opposite directions.

[0026] The beneficial effects of the foldable photovoltaic tracking device proposed in this utility model are as follows:

[0027] 1. A first folding component and a second folding component are symmetrically arranged on the column. The first folding component drives the first photovoltaic panel, and the second folding component drives the second photovoltaic panel, increasing the area of ​​the photovoltaic panels supported by the column, thus increasing the power generation area of ​​the foldable photovoltaic tracking device proposed in this invention. Since the first and second folding components are independently connected to the column, in adverse weather conditions, such as strong winds or rain and snow, the first folding component can drive the first photovoltaic panel closer to the column, and the second folding component can drive the second photovoltaic panel closer to the column. This reduces the wind-receiving area of ​​the photovoltaic panels or the impact of rain and snow on the light-receiving surface of the photovoltaic panels in the foldable photovoltaic tracking device proposed in this invention, ensuring the stability of the foldable photovoltaic tracking device and preventing snow accumulation from causing the photovoltaic panels to fail to generate electricity in a timely manner. In summary, the foldable photovoltaic tracking device proposed in this invention increases the area of ​​the photovoltaic panels to improve power generation while ensuring that the increased area of ​​the photovoltaic panels does not affect the stability of the overall structure, especially the supporting structure.

[0028] 2. The foldable photovoltaic tracking device proposed in this utility model not only uses the first and second folding components to drive the photovoltaic panel to rotate along the solar azimuth angle to track sunlight, but also has a rotating component. The rotating component is used to drive the photovoltaic panel to rotate along the solar altitude angle. While reducing the installation requirements of the foldable photovoltaic tracking device proposed in this utility model, it makes the sunlight as perpendicular as possible to the light-receiving surface of the photovoltaic panel, which is convenient for installation and improves power generation.

[0029] 3. When the first photovoltaic panel includes a first main board and at least one first sub-panel, and the second photovoltaic panel includes a second main board and at least one second sub-panel, the first sub-panel and the first main board are connected by a first flip structure, and the second sub-panel and the second main board are connected by a second flip structure. This allows the first main board and the first sub-panel, as well as the second main board and the second sub-panel, to have a folded state with their light-receiving surfaces facing each other and a working state with their light-receiving surfaces facing the same direction. In the working state, this further increases the power generation area of ​​the foldable photovoltaic tracking device proposed in this utility model. Under severe weather conditions, the first photovoltaic panel and / or the second photovoltaic panel are in a folded state, further reducing the wind-receiving area of ​​the photovoltaic panel and thus ensuring the stability of the support structure. At the same time, since the light-receiving surfaces of the first sub-panel and the first main board, as well as the light-receiving surfaces of the second sub-panel and the second main board, can all block each other, snow or dust is prevented from adhering to the light-receiving surface of the photovoltaic panel in the folded state, ensuring the power generation efficiency of the photovoltaic panel. Attached Figure Description

[0030] Figure 1 This is an isometric schematic diagram of the tracking state of the foldable photovoltaic tracking device in this embodiment.

[0031] Figure 2 This is an isometric view of the folded photovoltaic tracking device in this embodiment in its folded state.

[0032] Figure 3 This is an isometric view of the photovoltaic panels of the foldable photovoltaic tracking device in this embodiment, with their light-receiving surfaces arranged opposite each other.

[0033] Figure 4 for Figure 3 A front view schematic diagram of a foldable photovoltaic tracking device.

[0034] Figure 5 for Figure 3 A side view of a foldable photovoltaic tracking device.

[0035] in:

[0036] 1. Column; 2. Bracket; 3. Rotating assembly; 4. First folding assembly; 41. First push rod; 42. First support rod; 43. Third push rod; 5. Second folding assembly; 51. Second push rod; 52. Second support rod; 53. Fourth push rod; 61. First photovoltaic panel; 62. Second photovoltaic panel; 71. First sub-panel; 72. Second sub-panel. Detailed Implementation

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] A foldable photovoltaic tracking device is proposed, in such cases... Figures 1 to 5The illustrated embodiment includes a column 1 and a rotating assembly 3. The rotating assembly 3 includes a rotating part and a fixed part. The fixed part is fixedly connected to the column 1, and the rotating part is connected to the fixed part. The rotating part can rotate relative to the fixed part around the column 1. It also includes a folding assembly and a photovoltaic panel. The folding assembly includes a first folding assembly 4 and a second folding assembly 5 symmetrically arranged on both sides of the rotating part. The first folding assembly 4 includes a first support rod 42 and a first push rod 41. Along the length of the first support rod 42, the first support rod 42 has a head and a tail. The first support rod 42 is hinged to the rotating part through its head. One end of the first push rod 41 is hinged to the tail of the first support rod 42, and the other end of the first push rod 41 is hinged to the rotating part. The second folding assembly 5 includes a second support rod 52 and a second push rod 51. The photovoltaic panel includes a first photovoltaic panel 61 disposed on the first support rod 42 and a second photovoltaic panel 62 disposed on the second support rod 52. Under the action of the rotating assembly 3 and the first push rod 41 and second push rod 51, the photovoltaic panel tracks sunlight.

[0039] In this embodiment, by setting two sets of folding components, namely the first folding component 4 and the second folding component 5, the first folding component 4 and the second folding component 5 respectively drive the first photovoltaic panel 61 and the second photovoltaic panel 62. When power generation is needed, the first folding component 4 independently drives the first photovoltaic panel 61, and the second folding component 5 independently drives the second photovoltaic panel 62, thereby increasing the area of ​​the photovoltaic panels supported by the column 1. In severe weather, the first folding component 4 can drive the first photovoltaic panel 61 to move closer to or against the column 1, and the second folding component 5 can drive the second photovoltaic panel 62 to move closer to or against the column 1. Thus, the wind-receiving area of ​​the foldable photovoltaic tracking device proposed in this embodiment is at most half of the power generation area, thereby reducing the impact of severe weather on the foldable photovoltaic tracking device proposed in this embodiment.

[0040] Meanwhile, since the first folding component 4 and the second folding component 5 are symmetrically arranged, the forces on both sides of the column 1 are basically equal, so there is no need to increase the strength of the column 1 compared with the existing tracking device.

[0041] It should be noted that since the first folding component 4 and the second folding component 5 are symmetrically arranged, that is, their structures are basically the same, in this embodiment, to avoid redundancy, only the specific structure of the first folding component 4 is described, and the structure of the second folding component 5 refers to the specific structure of the first folding component 4.

[0042] The first photovoltaic panel 61 is mounted on the first support rod 42, and the second photovoltaic panel 62 is mounted on the second support rod 52. The first photovoltaic panel 61 can be directly connected to the first support rod 42, and the second photovoltaic panel 62 can be connected to the second support rod 52, or... Figure 5As shown, the first folding assembly 4 also includes a third push rod 43. At this time, the first support rod 42 also includes a middle part located between the head and the tail. One end of the third push rod 43 is hinged to the middle part, and the other end is hinged to the first photovoltaic panel 61.

[0043] It should be noted that dividing the first support rod 42 into a head, middle, and tail section is only for the purpose of describing the connection relationship between the third push rod 43, the first support rod 42, and the first push rod 41. Therefore, the first push rod 41 can be divided into a head, middle, and tail section equally according to its length, or the relative positions of the head, middle, and tail section can be adjusted to meet specific implementation requirements. For example, when the first photovoltaic panel 61 is longer and heavier, the middle section is closer to the tail section. In this case, the torque of the force applied by the first push rod 41 on the support rod is greater, making it easier to push the first photovoltaic panel 61, which is heavier due to its larger size.

[0044] Furthermore, when a third push rod 43 is provided, the other end of the third push rod 43 is hinged to the first photovoltaic panel 61. In this case, in order to ensure that the first photovoltaic panel 61 can controllably track the sun, the first photovoltaic panel 61 can be hinged to the head or the first photovoltaic panel 61 can be hinged to the rotating part.

[0045] It should also be noted that the first support rod 42 is hinged to the rotating part through the head, and the other end of the first push rod 41 is hinged to the rotating part. The first support rod 42, the first push rod 41 and the rotating part can be directly hinged to each other, or they can be indirectly connected. In the case of indirect connection, the foldable photovoltaic tracking device proposed in this utility model also includes a bracket 2, which is fixedly connected to the rotating part, and the flipping component is connected to the bracket 2.

[0046] Furthermore, when the bracket 2 is provided, in order to facilitate the direct hinge connection between the first support rod 42 and the first push rod 41 and the bracket 2, the surface of the bracket 2 used to hinge the first support rod 42 and the first push rod 41 can be either curved or flat. In this embodiment, the bracket 2 is preferably an "X" shaped structure and is fixedly connected to the rotating part through its central part.

[0047] Furthermore, when the bracket 2 is "X" shaped, its thickness dimension (the distance between the surface where the first folding component 4 is set and the surface where the second folding component 5 is set) is smaller than its width dimension (the distance between the surfaces that are adjacent to both the surface where the first folding component 4 and the surface where the second folding component 5 are set in the horizontal direction). That is, the bracket 2 is flat. In this case, in order to better support the first photovoltaic panel 61 and the second photovoltaic panel 62, there is at least one set of each of the first folding component 4 and the second folding component 5. Multiple sets of first folding components 4 support the first photovoltaic panel 61 at the same time, and multiple sets of second folding components 5 support the second photovoltaic panel 62 at the same time. This reduces the strength requirements of the first folding components 4 and the second folding components 5, while also providing multi-point support for the photovoltaic panel, thereby making the force on the photovoltaic panel more uniform.

[0048] It should be further noted that there are many transmission methods that can be adopted to make the rotating part in the rotating component 3 rotate relative to the fixed part, such as gear transmission, worm gear transmission, etc. In this embodiment, a screw transmission is preferred to make the rotating part rotate relative to the fixed part. Regarding the application of screw transmission in the photovoltaic field, the applicant has disclosed it in several Chinese patents or Chinese patent applications with publication numbers CN118224251A, CN118224271A, CN221075121U, CN221081234U, etc., which will not be elaborated here.

[0049] It should also be noted that, in this embodiment, the first push rod 41 and the second push rod 51 refer to mechanical structures that can change their overall length under the action of a certain power source, such as the commonly seen electric push rod driven by a motor, the pneumatic push rod driven by compressed air, or the hydraulic push rod driven by hydraulic power. Therefore, under the action of the first push rod 41 and the second push rod 51, the first photovoltaic panel 61 and the second photovoltaic panel 62 can move independently to a position close to or against the column 1 to avoid wind or snow, or they can move synchronously to track sunlight to improve power generation efficiency.

[0050] Similarly, in this embodiment, the third push rod 43 and the first push rod 41 and the second push rod 51 are mechanical structures with the same function. Therefore, it can also be any one or more of electric push rods, pneumatic push rods or hydraulic push rods (when multiple third push rods 43 are provided, different power sources can be selected for different third push rods 43); the push rod is provided with a third push rod 43, which can effectively reduce the stroke of the first push rod 41, thereby reducing costs and increasing the stability of the structure.

[0051] It should be understood that since the first folding component 4 and the second folding component 5 are symmetrically arranged, the second folding component 5 can also be provided with a fourth push rod 53 corresponding to the third push rod 43 in the first folding component 4. Its structure, connection method and function are the same as the third push rod 43, and will not be described in detail here.

[0052] Furthermore, such as Figure 1 and Figure 2 As shown, in some embodiments, the first photovoltaic panel 61 includes a first main board and a first sub-board 71 hinged to at least one side of the first main board, and also includes a first flip structure adapted to the number of first sub-boards 71. Under the action of the first flip structure, the first photovoltaic panel 61 has a working state and a folded state. In the working state, the light-receiving surface of the first sub-board 71 and the light-receiving surface of the first main board face the same direction. In the folded state, the light-receiving surface of the first sub-board 71 and the light-receiving surface of the first main board face opposite directions.

[0053] Furthermore, in some other embodiments, the second photovoltaic panel 62 includes a second main board and a second sub-board 72 hinged to at least one side of the second main board, and also includes a second flip structure adapted to the number of second sub-boards 72. Under the action of the second flip structure, the second photovoltaic panel 62 has a working state and a folded state. In the working state, the light-receiving surface of the second sub-board 72 and the light-receiving surface of the second main board face the same direction. In the folded state, the light-receiving surface of the second sub-board 72 and the light-receiving surface of the second main board face opposite directions.

[0054] It should be noted that when the first photovoltaic panel 61 includes a first main board and a first sub-board 71 hinged to at least one side of the first main board, the second photovoltaic panel 62 can be composed of only one independent photovoltaic panel, or it can include a second main board and a second sub-board 72 hinged to at least one side of the second main board; similarly, when the second photovoltaic panel 62 includes a second main board and a second sub-board 72 hinged to at least one side of the second main board, the first photovoltaic panel 61 can also be composed of only one independent photovoltaic panel.

[0055] It should also be noted that, in this embodiment, the folded state refers to the first sub-plate 71 facing the light-receiving surface of the first main plate under the action of the first flip structure, and the second sub-plate 72 facing the light-receiving surface of the second main plate under the action of the second flip structure. At this time, the in-plane area of ​​the first photovoltaic panel 61 and the second photovoltaic panel 62 on the light-receiving surface of the first main plate is smaller, which further reduces the impact of severe weather, such as a smaller wind-receiving area, and snow or dust is less likely to adhere to the light-receiving surface. In contrast, the working state refers to the first sub-plate 71 and the first main plate facing the same direction and both facing the sun under the action of the first flip structure, and the second sub-plate 72 and the second main plate facing the same direction and both facing the sun under the action of the second flip structure, so that the first photovoltaic panel 61 and the second photovoltaic panel 62 can receive sunlight to generate electricity.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0058] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided with" and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the present utility model patent should be included in the scope of the present utility model.

Claims

1. A foldable photovoltaic tracking device, characterized in that: include Columns; A rotating assembly, comprising a rotating part and a fixed part, wherein the fixed part is fixedly connected to the column, the rotating part is connected to the fixed part, and the rotating part is capable of rotating about the column relative to the fixed part; The folding assembly includes a first folding assembly and a second folding assembly symmetrically arranged on both sides of the rotating part. The first folding assembly includes a first support rod and a first push rod. Along the length of the first support rod, the first support rod has a head and a tail. The first support rod is hinged to the rotating part through the head. One end of the first push rod is hinged to the tail of the first support rod, and the other end of the first push rod is hinged to the rotating part. The second folding assembly includes a second support rod and a second push rod; The photovoltaic panel includes a first photovoltaic panel disposed on the first support rod and a second photovoltaic panel disposed on the second support rod; Under the action of the rotating assembly and the first and second push rods, the photovoltaic panel tracks sunlight.

2. The foldable photovoltaic tracking device as described in claim 1, characterized in that: The first support rod also includes a middle section located between the head and the tail; the first folding assembly also includes a third push rod, one end of which is hinged to the middle section and the other end is hinged to the first photovoltaic panel.

3. The foldable photovoltaic tracking device as described in claim 2, characterized in that: The first photovoltaic panel is hinged to the head portion, or the first photovoltaic panel is hinged to the rotating portion.

4. The foldable photovoltaic tracking device as described in claim 1, characterized in that: It also includes a bracket, which is fixedly connected to the rotating part, and the folding assembly is connected to the bracket.

5. The foldable photovoltaic tracking device as described in claim 4, characterized in that: The overall structure of the bracket is "X" shaped, and it is fixedly connected to the rotating part through its central part.

6. The foldable photovoltaic tracking device as described in claim 5, characterized in that: The number of the first folding component and the second folding component is at least one set.

7. The foldable photovoltaic tracking device as described in claim 1, characterized in that: The rotating component is driven by a helical drive.

8. The foldable photovoltaic tracking device as described in claim 1, characterized in that: The first push rod or the second push rod is any one of an electric push rod, a pneumatic push rod, or a hydraulic push rod.

9. The foldable photovoltaic tracking device as described in any one of claims 1 to 8, characterized in that: The first photovoltaic panel includes a first main board and a first sub-board hinged to at least one side of the first main board, and also includes a first flip structure adapted to the number of the first sub-boards. Under the action of the first flip structure, the first photovoltaic panel has a working state and a folded state. In the working state, the light-receiving surface of the first sub-board and the light-receiving surface of the first main board face the same direction. In the folded state, the light-receiving surface of the first sub-board and the light-receiving surface of the first main board face opposite directions. And / or, The second photovoltaic panel includes a second main board and a second sub-board hinged to at least one side of the second main board, and also includes a second flip structure adapted to the number of the second sub-boards. Under the action of the second flip structure, the second photovoltaic panel has a working state and a folded state. In the working state, the light-receiving surfaces of the second sub-board and the second main board face the same direction. In the folded state, the light-receiving surfaces of the second sub-board and the second main board face opposite directions.

Images