Photovoltaic flexible support

Abstract

The utility model discloses a photovoltaic flexible support, which comprises a support frame, a stand column, an angle adjusting device, a supporting cable and a driving device, and belongs to the technical field of photovoltaic equipment. The support frame is used for fixing the photovoltaic module. The lower end of the column is anchored to a foundation. The angle adjusting device comprises a supporting arm and a hydraulic rod and is rotatably installed on the two sides of the stand column, the supporting arm is driven to rotate through stretching and retracting of the hydraulic rod, and then the support frame is driven to swing. The supporting cables are arranged between the supporting arms of the adjacent stand columns in parallel and are matched with the supporting arms in a penetrating mode to form an opening angle structure with stable prestress to support the photovoltaic module. The driving device comprises a motor or an electric oil pump, controls the rotation of the angle adjusting device, and achieves the automatic sun-tracking angle adjustment of the photovoltaic module. According to the support structure, the power generation efficiency of the photovoltaic module is improved, the overall strength is enhanced, and collapse accidents caused by support deformation are effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic equipment technology, and specifically relates to a flexible photovoltaic support. Background Technology

[0002] As the performance of solar cells continues to improve and costs continue to decrease, the application scope of photovoltaic (PV) power generation technology is gradually expanding, from mountainous and desert areas far from the power grid to rooftops and walls of urban residents, and from small-scale PV power generation systems to large-scale commercial power plants. As one of the most promising renewable energy sources, PV power generation is clean and renewable. Floating-mountain PV and mountain PV, as two important application scenarios, place higher demands on PV support systems due to their unique geographical conditions and technical challenges.

[0003] Most existing flexible photovoltaic support structures use fixed support structures and steel cable locking devices to adjust the prestress of the steel cables and thus the angle of the photovoltaic modules. However, the locking devices are prone to problems such as obstruction by debris under outdoor conditions, which affects the accurate adjustment of the prestress of the flexible steel cables. Inaccurate tensioning or loosening of the flexible steel cables of the photovoltaic modules can easily cause structural damage to the steel cables, thereby compromising the overall structural stability of the flexible photovoltaic support and affecting the automatic sun-tracking function of the flexible photovoltaic support, resulting in insufficient efficiency in utilizing solar energy. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a photovoltaic flexible support that can adjust the angle of the photovoltaic flexible support without adjusting the prestress of the flexible steel cable, thereby realizing the automatic sun tracking function of the photovoltaic module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model proposes a flexible photovoltaic support structure, comprising:

[0007] Support frame, used to fix photovoltaic modules;

[0008] At least two columns shall be installed, with their lower ends anchored to the foundation.

[0009] An angle adjustment device includes a support arm and a hydraulic rod. The lower end of the support arm is rotatably connected to the top of the column, and the hydraulic rod is rotatably connected to the middle position of the support arm and the column body. An angle adjustment device is installed on each side of a column.

[0010] The support cable consists of at least two parallel cables that connect to the support arms on adjacent columns. The support cable passes through the support arm, and the bracket frame is positioned above the support cable. Both ends of the support cable are anchored.

[0011] The driving device drives the angle adjustment device to rotate, thereby driving the support frame to swing.

[0012] Specifically, the angle adjustment device includes a first support arm, a second support arm, a first hydraulic rod, and a second hydraulic rod;

[0013] The first support arm and the second support arm are respectively disposed on both sides of the column, and the lower ends of the first support arm and the second support arm are rotatably connected to the top of the column.

[0014] The first hydraulic rod and the second hydraulic rod are respectively installed on both sides of the column. The first hydraulic rod connects the middle position of the first support arm to the column body, and the second hydraulic rod connects the middle position of the second support arm to the column body.

[0015] Furthermore, the support cable includes a first support cable and a second support cable, with the first support cable passing through the first support arm and the second support cable passing through the second support arm.

[0016] Specifically, the support arm has a long groove, and the hydraulic rod is movably connected to the support arm through the long groove.

[0017] Specifically, the column is a cross-shaped steel, which has a first lateral protrusion and a second lateral protrusion, and the angle adjustment device is rotatably connected to the first lateral protrusion and the second lateral protrusion.

[0018] Furthermore, the first transverse protrusion has a through hole, and a rotating pin is provided in the through hole to be rotatably connected to the first hydraulic rod; the second transverse protrusion of the cross-shaped steel has a through hole, and a rotating pin is provided in the through hole to be rotatably connected to the second hydraulic rod.

[0019] Furthermore, the angle adjustment device also has a first auxiliary hydraulic rod and a second auxiliary hydraulic rod;

[0020] The lower end of the first auxiliary hydraulic rod is connected to the lower end of the first hydraulic rod through a rotating pin on the through hole of the first transverse protrusion, and the upper end of the first auxiliary hydraulic rod is connected to the upper end of the first hydraulic rod through a connecting rod, which passes through the first support arm.

[0021] The lower end of the second auxiliary hydraulic rod is connected to the lower end of the second hydraulic rod through a rotating pin on the through hole of the second transverse protrusion, and the upper end of the second auxiliary hydraulic rod is connected to the upper end of the second hydraulic rod through a connecting rod, which passes through the second support arm.

[0022] Specifically, a rotating beam is provided at the top of the column, and the support arm is rigidly connected to the rotating beam.

[0023] Furthermore, the drive device includes a motor and a transmission structure, and the transmission mechanism includes a transmission wheel and a transmission chain;

[0024] The transmission wheel is provided with a toothed portion and is connected to the motor for transmission. The two ends of the transmission chain are respectively connected to the transmission wheel and the drive shaft.

[0025] The rotating beam is sleeved on the drive shaft, which has a toothed portion, and the drive mechanism drives the drive shaft and the rotating beam to rotate synchronously.

[0026] Furthermore, the drive device includes an electric oil pump connected to the hydraulic rod.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This utility model patent provides an automatic tracking photovoltaic flexible support structure, comprising a support frame, columns, an angle adjustment device, support cables, and a drive device. The angle adjustment device includes a support arm and a hydraulic rod. The support arm and support cables are interlocked, tensioning the cables to create a prestressed, stable angle that supports the photovoltaic modules on the support frame. Simultaneously, the drive device controls the rotation of the support arm and hydraulic rod, achieving angle adjustment for the photovoltaic modules to track the sun. Furthermore, one end of the hydraulic rod is connected to the support arm, providing auxiliary support and driving the support arm to achieve angle adjustment, thereby enabling automatic sun tracking and improving the power generation efficiency of the photovoltaic modules. This utility model's photovoltaic flexible support structure, using a hydraulic device to drive the photovoltaic flexible support for angle adjustment, also enhances the overall strength of the photovoltaic flexible support, effectively increasing the power generation efficiency of the photovoltaic modules and preventing support structure deformation and collapse accidents to a certain extent. Attached Figure Description

[0029] Figure 1 This is a side view of the automatic tracking photovoltaic flexible support of this utility model;

[0030] Figure 2 This is a perspective view of the automatic tracking photovoltaic flexible support of this utility model;

[0031] Figure 3 This is a rear view of the automatic tracking photovoltaic flexible support of this utility model;

[0032] Figure 4 This is a side view of the automatic tracking photovoltaic flexible support of this utility model;

[0033] Figure 5 This is a three-dimensional view of the automatic tracking photovoltaic flexible support of this utility model.

[0034] The components include: column 1, first transverse protrusion 101, second transverse protrusion 102, hydraulic rod 2, first hydraulic rod 211, first auxiliary hydraulic rod 212, second hydraulic rod 221, second auxiliary hydraulic rod 222, rotating beam 3, support arm 4, first support arm 41, second support arm 42, bracket frame 5, photovoltaic module 6, support cable 7, first support cable 71, second support cable 72, and column through hole 8. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0036] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

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

[0038] Please see Figure 1 and Figure 2 and Figure 5 This utility model proposes an automatic tracking photovoltaic flexible support, comprising:

[0039] The bracket frame 5 is used to fix the photovoltaic module 6, which is mounted on the bracket frame 5.

[0040] Column 1, at least two at intervals in the first direction, with the lower end anchored to the foundation;

[0041] An angle adjustment device is rotatably installed on both sides of the column 1, including a support arm 4 and a hydraulic rod 2. The lower end of the support arm 4 is rotatably connected to the top of the column 1, and the hydraulic rod 2 is rotatably connected to the middle position of the support arm 4 and the column body of the column 1.

[0042] The support cables 7, at least two of which are arranged in parallel, connect the support arms 4 on the adjacent columns 1. The support cables are threaded through the support arms. The support cables 7 pass through the upper end of the support arms 4 and are led out from the lower end of the support arms 4 to form a support cable strut structure. The support frame 5 is set above the support cables 7. The two ends of the support cables 7 are anchored to the foundation or fixed rods.

[0043] The driving device drives the angle adjustment device to rotate, which in turn drives the support frame 5 to swing.

[0044] In the above scheme, the first direction is the direction in which adjacent columns 1 are arranged. The columns 1 and the angle adjustment devices on both sides of the columns 1 form a second vertical plane. The second vertical plane is perpendicular to the first direction. The driving device can drive the angle adjustment device to rotate in the second vertical plane, thereby driving the support frame 5 to swing in the vertical direction.

[0045] Specifically, in the embodiments of this utility model, the angle adjustment device includes a first support arm 41, a second support arm 42, a first hydraulic rod 211, and a second hydraulic rod 221, as detailed below. Figure 3 ;

[0046] The first support arm 41 and the second support arm 42 are respectively disposed on both sides of the column 1, and the lower ends of the first support arm 41 and the second support arm 42 are rotatably connected to the top of the column 1.

[0047] like Figure 3 As shown, the first hydraulic rod 211 and the second hydraulic rod 221 are respectively installed on both sides of the column 1. The first hydraulic rod 211 is rotatably connected to the middle position of the first support arm 41 and the column body of the column 1 in the second vertical plane. The second hydraulic rod 221 is connected to the middle position of the second support arm 42 and the column body of the column 1.

[0048] Combination Figure 3 and Figure 5 The support cable 7 includes a first support cable 71 and a second support cable 72. The first support cable 71 is connected to the upper end of the first support arm 41 and interlocks with both the upper and lower ends of the first support arm 41. The second support cable 72 is connected to the upper end of the second support arm 41 and interlocks with both the upper and lower ends of the second support arm 42. Figure 3 As can be seen, the support cable forms a stable quadrilateral angle structure by adjusting the angle with the first support arm 41 and the second support arm 42. On the one hand, it can stably connect each support frame 5. On the other hand, the stress of the support cable 7 can remain stable during the process of adjusting the angle of the photovoltaic support 5 by adjusting the support arm.

[0049] Generally, after the support cable 7 is led out from the bottom of the support arm 4, it can be wound and fixed to the column or directly fixed to the ground, such as... Figure 5 As shown, the first cable 71 and the second cable 72 are anchored to the ground and kept taut, without being limited to a specific fixing method.

[0050] In some preferred embodiments of this invention, the support arm 4 has an elongated groove, and the hydraulic rod 2 is movably connected to the support arm 4 through the elongated groove. When the tilt angle needs to be adjusted to a larger angle, the support arm 4 with the elongated groove can be used. A locking structure can be set in the elongated groove, and the connection between the hydraulic rod 2 and the support arm 4 can be restricted by a limiting block to ensure the stability of the entire support structure.

[0051] like Figure 4 As shown, in some preferred embodiments of this utility model, the column 1 is a cross-shaped steel, which has a first transverse protrusion 101 and a second transverse protrusion 102, and the angle adjustment device is rotatably connected to the first transverse protrusion 101 and the second transverse protrusion 102.

[0052] The first transverse protrusion 101 has a through hole 8, and the through hole 8 is provided with a rotating pin and is rotatably connected to the first hydraulic rod 211; the second transverse protrusion 102 of the cross-shaped steel has a through hole 8, and the through hole 8 is provided with a rotating pin and is rotatably connected to the second hydraulic rod 221.

[0053] In the above preferred embodiment, a first auxiliary hydraulic rod 212 and a second auxiliary hydraulic rod 222 may also be provided in the angle adjustment device;

[0054] The lower end of the first auxiliary hydraulic rod 212 is connected to the lower end of the first hydraulic rod 211 through a rotating pin on the through hole 8 of the first transverse protrusion 101. The upper end of the first auxiliary hydraulic rod 212 is connected to the upper end of the first hydraulic rod 211 through a connecting rod, which passes through the first support arm 41.

[0055] The lower end of the second auxiliary hydraulic rod 222 is connected to the lower end of the second hydraulic rod 221 through a rotating pin on the through hole 8 of the second transverse protrusion 102. The upper end of the second auxiliary hydraulic rod 222 is connected to the upper end of the second hydraulic rod 211 through a connecting rod, which passes through the second support arm 42.

[0056] See Figure 1 In this embodiment of the utility model, a rotating beam 3 is provided at the top of the column 1, and the support arm 4 is rigidly connected to the rotating beam 3.

[0057] In some embodiments, the driving device includes a motor and a transmission structure. The transmission mechanism includes a transmission wheel and a transmission chain. The transmission wheel has teeth and is connected to the motor. The two ends of the transmission chain are connected to the transmission wheel and the drive shaft, respectively. A rotating beam 3 is sleeved on the drive shaft, which has teeth. The driving mechanism drives the drive shaft and the rotating beam 3 to rotate synchronously. By controlling the transmission of the motor to rotate the beam 3, the angle of the support arm 4 can be directly controlled, thereby adjusting the solar tracking rotation of the photovoltaic module 6.

[0058] In some embodiments of this invention, the driving device includes an electric oil pump connected to a hydraulic rod 2. The electric oil pump provides a power source, converting mechanical energy into hydraulic oil pressure via the hydraulic rod 2. This pressure is then transmitted by pushing a piston through the hydraulic rod 2. By adjusting the power generated by the hydraulic rod 2, the photovoltaic modules on the photovoltaic module mounting frame 5 are adjusted to the required angle.

[0059] In a specific embodiment of this utility model, the drive device is connected to a multi-mode GNSS timing module, and relevant data is provided to the drive device, thereby controlling the rotating crossbeam 3 and the hydraulic rod 2 to drive the photovoltaic module to adjust its position.

[0060] This invention provides two driving methods. When using motor drive, the hydraulic power system can serve as an auxiliary support system to maintain the stability of the support structure system.

[0061] The working principle of this utility model application is as follows:

[0062] A first support cable 71, anchored to the ground, passes through the lower end of a support arm 41, extends from the lower end of a support rod 41, and passes through the upper end of the support rod 41. A second support cable 72, also anchored to the ground, passes through the lower end of a support arm 42 and the upper end of the support rod 42. The first and second support cables 71 and 72 are parallel and jointly connected to the back of multiple support frames 5, allowing the photovoltaic modules 6 to be mounted on the flexible support cables. Then, the first support cable 71 passes through the upper end of a support arm on another adjacent column, extends from the lower end of that support arm, and is anchored to the ground; the second support cable 72 passes through the upper end of a support arm on the same adjacent column, extends from the lower end of that support arm, and is anchored to the ground. The column 1 is equipped with a motor drive structure. The support arm 4 is connected to the top of the column 1 through a rotating crossbeam 3. The hydraulic rod 2 is connected to an electric oil pump. The motor and the electric oil pump are connected to a multi-mode GNSS timing module. According to the instructions of the control system, the motor drives the rotating crossbeam 3 and the hydraulic rod 2 to adjust the angle of the angle adjustment device and realize the automatic sun tracking function.

[0063] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A flexible photovoltaic support structure, characterized in that, include: Support frame (5) is used to fix photovoltaic modules (6); At least two columns (1) are installed, with their lower ends anchored to the foundation. An angle adjustment device includes a support arm (4) and a hydraulic rod (2). The lower end of the support arm (4) is rotatably connected to the top of the column (1). The hydraulic rod (2) is rotatably connected to the middle position of the support arm (4) and the column body of the column (1). An angle adjustment device is installed on each side of a column (1). The support cable (7) consists of at least two parallel cables connected to the support arm (4) on the adjacent column (1). The support cable (7) passes through the support arm (4) to form a support cable strut structure. The support frame (5) is located above the support cable (7). The two ends of the support cable (7) are anchored. The driving device drives the angle adjustment device to rotate, thereby driving the support frame (5) to swing.

2. The photovoltaic flexible support according to claim 1, characterized in that, The angle adjustment device includes a first support arm (41), a second support arm (42), a first hydraulic rod (211), and a second hydraulic rod (221). The first support arm (41) and the second support arm (42) are respectively disposed on both sides of the column (1), and the lower end of the first support arm (41) and the lower end of the second support arm (42) are rotatably connected to the top of the column (1). The first hydraulic rod (211) and the second hydraulic rod (221) are respectively set on both sides of the column (1). The first hydraulic rod (211) connects the middle position of the first support arm (41) to the column body (1), and the second hydraulic rod (221) connects the middle position of the second support arm (42) to the column body (1).

3. The photovoltaic flexible support according to claim 2, characterized in that, The support cable (7) includes a first support cable (71) and a second support cable (72). The first support cable (71) is threaded through the first support arm (41), and the second support cable (72) is threaded through the second support arm (42).

4. The photovoltaic flexible support according to claim 1, characterized in that, The support arm (4) has a long groove, and the hydraulic rod (2) is movably connected to the support arm (4) through the long groove.

5. The photovoltaic flexible support according to claim 2, characterized in that, The column (1) is a cross-shaped steel with a first transverse protrusion (101) and a second transverse protrusion (102). An angle adjustment device is rotatably connected to the first transverse protrusion (101) and the second transverse protrusion (102).

6. The photovoltaic flexible support according to claim 5, characterized in that, The first transverse protrusion (101) has a through hole, and a rotating pin is provided in the through hole to be rotatably connected to the first hydraulic rod (211); the second transverse protrusion (102) of the cross-shaped steel has a through hole, and a rotating pin is provided in the through hole to be rotatably connected to the second hydraulic rod (221).

7. The photovoltaic flexible support according to claim 6, characterized in that, The angle adjustment device also has a first auxiliary hydraulic rod (212) and a second auxiliary hydraulic rod (222); The lower end of the first auxiliary hydraulic rod (212) is connected to the lower end of the first hydraulic rod (211) through a rotating pin on the through hole of the first transverse protrusion (101), and the upper end of the first auxiliary hydraulic rod (212) is connected to the upper end of the first hydraulic rod (211) through a connecting rod, which passes through the first support arm (41). The lower end of the second auxiliary hydraulic rod (222) is connected to the lower end of the second hydraulic rod (221) through a rotating pin on the through hole of the second transverse protrusion (102), and the upper end of the second auxiliary hydraulic rod (222) is connected to the upper end of the second hydraulic rod (221) through a connecting rod, which passes through the second support arm (42).

8. The photovoltaic flexible support according to claim 1, characterized in that, The top of the column (1) is provided with a rotating crossbeam (3), and the support arm (4) is rigidly connected to the rotating crossbeam (3).

9. The photovoltaic flexible support according to claim 8, characterized in that, The drive device includes a motor and a transmission structure, the transmission structure including a transmission wheel and a transmission chain; The transmission wheel is provided with a toothed portion and is connected to the motor for transmission. The two ends of the transmission chain are respectively connected to the transmission wheel and the drive shaft. The rotating beam (3) is sleeved on the outside of the drive shaft, the drive shaft has a toothed part, and the drive device drives the drive shaft and the rotating beam (3) to rotate synchronously.

10. The photovoltaic flexible support according to claim 1, 8 or 9, characterized in that, The drive device includes an electric oil pump, which is connected to the hydraulic rod (2).

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