Flexible tracking photovoltaic support and photovoltaic system

Abstract

A flexible tracking photovoltaic support disclosed by the utility model comprises a main rope, a supporting mechanism, a connecting rod mechanism and a driving mechanism, the main rope is used for supporting a photovoltaic assembly, the main rope is arranged on the supporting mechanism, the connecting rod mechanism comprises a plurality of connecting rod assemblies arranged at intervals, the first end of each connecting rod assembly is connected with the supporting mechanism, and the second end of each connecting rod assembly is connected with the driving mechanism. The driving mechanism is in transmission connection with the second ends of the connecting rod assemblies and drives the connecting rod assemblies to synchronously ascend and descend so as to drive the supporting mechanism to rotate, and sun illumination tracking of the photovoltaic assembly is achieved. According to the flexible tracking photovoltaic support disclosed by the utility model, the driving mechanism drives each connecting rod assembly to lift synchronously so as to drive the supporting mechanism to rotate and further drive the photovoltaic assembly to rotate, and the flexible tracking photovoltaic support can be adjusted according to time and seasons, so that the photovoltaic assembly adapts to the solar altitude, and solar illumination tracking is realized; therefore, the photovoltaic module can receive effective illumination time and illumination area, and the photovoltaic power generation efficiency and the power generation capacity are improved. The utility model also discloses a photovoltaic system.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible photovoltaics, and more specifically, to a flexible tracking photovoltaic bracket and a photovoltaic system. Background Art

[0002] With the rapid development of the photovoltaic industry, in order to adapt to various complex terrain conditions such as mountains, deserts, and forests, flexible photovoltaic systems have developed rapidly. Existing flexible photovoltaic brackets are usually fixed structures, with steel strands as the main load-bearing cables. The two ends of the load-bearing cables are fixed to the columns of the end brackets, and they cannot adjust the pitch angle of the photovoltaic modules according to the change of the sun's position, making it difficult to adapt to the change of the sun's irradiation angle and being unfavorable for improving the power generation efficiency.

[0003] Therefore, how to increase the effective illumination time and illumination area of the photovoltaic modules to improve the photovoltaic power generation efficiency has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a flexible tracking photovoltaic bracket to increase the effective illumination time and illumination area of the photovoltaic modules and improve the photovoltaic power generation efficiency.

[0005] Another core of the present utility model is to disclose a photovoltaic system including the above flexible tracking photovoltaic bracket.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A flexible tracking photovoltaic bracket, comprising:

[0008] A main cable for supporting the photovoltaic modules;

[0009] A support mechanism, with the main cable arranged on the support mechanism;

[0010] A link mechanism, which includes a plurality of link components arranged at intervals, and each link component is respectively connected to the support mechanism;

[0011] A driving mechanism, which is in transmission connection with the link components and drives each link component to lift synchronously to drive the support mechanism to rotate.

[0012] Optionally, in the above flexible tracking photovoltaic bracket, the support mechanism includes:

[0013] Support columns, including a plurality of support columns arranged at intervals along the extension direction of the main cable;

[0014] Support crossbeams, corresponding to the support columns one by one, with the support crossbeams arranged on the support columns and rotatably connected to the support columns, the main cable being arranged on the support crossbeams, and the first ends of the link components being hinged to the support crossbeams.

[0015] Optionally, in the above flexible tracking photovoltaic support, the connecting rod assemblies correspond to the support crossbeams one by one; or,

[0016] The number of the connecting rod assemblies is less than that of the support crossbeams, and the connecting rod assemblies are arranged at intervals between the support crossbeams.

[0017] Optionally, in the above flexible tracking photovoltaic support, the driving mechanism includes:

[0018] A driving device;

[0019] A moving cable, the driving device is in transmission connection with the moving cable to drive the moving cable to rotate. The moving cable includes a first moving cable and a second moving cable which are connected to each other; the second end of the connecting rod assembly includes a first hinge point hinged to the first moving cable and a second hinge point hinged to the second moving cable, and the moving directions of the first moving cable and the second moving cable are opposite.

[0020] Optionally, in the above flexible tracking photovoltaic support, the driving device includes a driving motor, a driving wheel and a driven wheel. The driving motor is used to drive the driving wheel to rotate. The moving cable is sleeved on the driving wheel and the driven wheel and is in a closed loop shape.

[0021] Optionally, in the above flexible tracking photovoltaic support, the driving device includes a deflecting wheel, and the moving cable is in transmission connection with the deflecting wheel.

[0022] Optionally, in the above flexible tracking photovoltaic support, it further includes a plurality of supporting wheels, and the moving cable is in transmission connection with each supporting wheel.

[0023] Optionally, in the above flexible tracking photovoltaic support, the connecting rod assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod;

[0024] The first end of the first connecting rod is hinged to the first end of the second connecting rod and is also hinged to the support crossbeam. The third connecting rod and the fourth connecting rod are cross-hinged, and the first end of the third connecting rod is hinged to the second end of the first connecting rod, and the first end of the fourth connecting rod is hinged to the second end of the second connecting rod;

[0025] The second end of the third connecting rod is the first hinge point, and the second end of the fourth connecting rod is the second hinge point.

[0026] Optionally, in the above flexible tracking photovoltaic support, the main cable includes at least two arranged in parallel.

[0027] A photovoltaic system includes a flexible tracking photovoltaic support, and the flexible tracking photovoltaic support is the above flexible tracking photovoltaic support.

[0028] As can be seen from the above solution, for the flexible tracking photovoltaic bracket disclosed in the present utility model, the driving mechanism drives each connecting rod assembly to lift synchronously, thereby driving the support mechanism to rotate, and further driving the photovoltaic module to rotate. It can be adjusted according to time and season so that the photovoltaic module adapts to the solar altitude angle, realizes solar light tracking, enables the photovoltaic module to receive effective light time and light area, and improves the photovoltaic power generation efficiency and power generation amount. The flexible tracking photovoltaic bracket disclosed in the present utility model adopts the cooperation of a driving mechanism and a connecting rod mechanism, with a simple structure and convenient operation.

[0029] Since the flexible photovoltaic system disclosed in the present utility model includes the above flexible tracking photovoltaic bracket, it has all the technical effects of the above flexible photovoltaic bracket, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is the front view of the flexible tracking photovoltaic bracket disclosed in the embodiment of the present utility model;

[0032] Figure 2 is Figure 1 the partial enlarged view in

[0033] Figure 3 It is the top view of the flexible tracking photovoltaic bracket disclosed in the embodiment of the present utility model;

[0034] Figure 4 is Figure 3 the partial enlarged view in

[0035] Figure 5 It is the structural schematic diagram of the flexible tracking photovoltaic bracket in the initial state disclosed in the embodiment of the present utility model;

[0036] Figure 6 It is the structural schematic diagram of the flexible tracking photovoltaic bracket in the first state disclosed in the embodiment of the present utility model;

[0037] Figure 7 It is the structural schematic diagram of the flexible tracking photovoltaic bracket in the second state disclosed in the embodiment of the present utility model.

[0038] Among them, 100 is the main cable;

[0039] 200 is the support mechanism, 210 is the support column, and 220 is the support crossbeam;

[0040] 300 is a linkage mechanism, 310 is a linkage assembly, 311 is a first link, 312 is a second link, 313 is a third link, 3131 is a first hinge point, 314 is a fourth link, and 3141 is a second hinge point;

[0041] 400 is a driving mechanism, 410 is a driving device, 411 is a driving wheel, 412 is a driven wheel, 413 is a direction-changing wheel, 414 is a supporting wheel, 420 is a motion cable, 421 is a first motion cable, and 422 is a second motion cable. Specific implementation manners

[0042] The core of the present utility model lies in disclosing a flexible tracking photovoltaic bracket to increase the effective illumination time and illumination area of photovoltaic modules and improve the photovoltaic power generation efficiency.

[0043] Another core of the present utility model lies in disclosing a photovoltaic system including the above flexible tracking photovoltaic bracket.

[0044] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0045] As Figure 1 shown, an embodiment of the present utility model discloses a flexible tracking photovoltaic bracket, including a main cable 100, a supporting mechanism 200, a linkage mechanism 300, and a driving mechanism 400.

[0046] Among them, the supporting mechanism 200 is used to support the main cable 100. The main cable 100 is arranged on the supporting mechanism 200, and the photovoltaic module is arranged on the main cable 100. The main cable 100 includes at least two arranged in parallel. The linkage mechanism 300 includes a plurality of linkage assemblies 310 arranged at intervals. Each linkage assembly 310 is respectively connected to the supporting mechanism 200. Specifically, a hinge connection method can be adopted, or a fixed connection method can be adopted. A detachable connection method or a non-detachable connection method can be selected. The driving mechanism 400 is in transmission connection with the linkage assembly 310 to drive each linkage assembly 310 to lift synchronously, so as to drive the supporting mechanism 200 to rotate and realize the solar illumination tracking of the photovoltaic module.

[0047] The flexible tracking photovoltaic support disclosed in the embodiments of the present utility model has a driving mechanism 400 that drives each connecting rod assembly 310 to lift synchronously, thereby driving the support mechanism 200 to rotate, and further driving the photovoltaic module to rotate. It can be adjusted according to time and season so that the photovoltaic module adapts to the solar altitude angle, realizes solar light tracking, enables the photovoltaic module to receive effective light time and light area, and improves the photovoltaic power generation efficiency and power generation amount. The flexible tracking photovoltaic support disclosed in the embodiments of the present utility model adopts the cooperation of the driving mechanism 400 and the connecting rod mechanism 300, with a simple structure and convenient operation.

[0048] It should be noted that for the flexible tracking photovoltaic support disclosed in the embodiments of the present utility model, there are multiple setting schemes for the driving mechanism 400 to drive each connecting rod assembly 310 to rotate synchronously. One driving mechanism 400 can be set to drive each connecting rod assembly 310 to rotate synchronously, or multiple driving mechanisms corresponding one-to-one to the connecting rod assemblies 310 can be set, and each connecting rod assembly 310 can be made to rotate synchronously through an interlocking control method. By changing the lifting degree of the connecting rod assembly 310, the rotation angle of the photovoltaic module can be changed.

[0049] In some specific embodiments, such as Figure 1 and Figure 5 shown, the support mechanism 200 includes support columns 210 and support crossbeams 220. Among them, multiple support columns 210 are arranged at intervals along the extension direction of the main cable 100. The support crossbeams 220 correspond one-to-one to the support columns 210. The support crossbeams 220 are arranged on the support columns 210 and are rotatably connected to the support columns 210. The main cable 100 is arranged on the support crossbeams 220. The first end of the connecting rod assembly 310 is hinged to the support crossbeam 220, specifically, it can be hinged to any end of the support crossbeam 220, that is, the connecting rod assembly 310 can be arranged only at one end of the support crossbeam 220, and the rotation angle adjustment of the photovoltaic module is realized through the lifting of the connecting rod assembly 310. Figure 5 Shown is the initial state of the flexible tracking photovoltaic support. At this time, the axis of the support crossbeam 220 is perpendicular to the axis of the support column 210, and the extension direction of the support crossbeam 220 is perpendicular to the extension direction of the main cable 100. In some other specific embodiments, the connecting rod mechanism 300 can be arranged at both ends of the support crossbeam 220. The connecting rod mechanisms 300 at both ends can cooperate with each other to realize the lifting of the support crossbeam 220, which can improve the structural stability of the flexible tracking photovoltaic support. At the same time, when a failure occurs in the connecting rod mechanism 300 at any one end, the connecting rod mechanism 300 at the other end can ensure the normal operation of the photovoltaic module, and can improve the reliability of the operation of the photovoltaic module.

[0050] During use, the drive mechanism 400 drives each link assembly 310 to lift synchronously, thereby driving the support crossbeam 220 to lift, and further adjusting the rotation angle of the photovoltaic module to adapt to the solar altitude angle. The arrangement of the support columns 210 and the support crossbeam 220 can ensure the stability of the photovoltaic module.

[0051] Preferably, the link assemblies 310 correspond to the support crossbeams 220 one by one. This setting method facilitates the adjustment of the rotation angle of the photovoltaic module. Those skilled in the art can understand that the number of link assemblies 310 can also be less than the number of support crossbeams 220. The link assemblies 310 are arranged at intervals between the support crossbeams 220, that is, link assemblies 310 are provided at the bottom of some support crossbeams 220, and some are not. Preferably, one support crossbeam 220 is arranged at intervals between two adjacent link assemblies 310. This setting method can reduce the number of link assemblies 310 on the one hand and ensure the adjustment of the rotation angle of the photovoltaic module on the other hand.

[0052] In some specific embodiments, the drive mechanism 400 includes a drive device 410 and a motion cable 420. Specifically, the motion cable 420 includes a first motion cable 421 and a second motion cable 422. The second end of the link assembly 310 includes a first hinge point 3131 hinged to the first motion cable 421 and a second hinge point 3141 hinged to the second motion cable 422. The motion directions of the first motion cable 421 and the second motion cable 422 are opposite. The drive device 410 is in transmission connection with the motion cable 420 to drive the motion cable 420 to rotate, so as to drive the link assembly 310 to rise and fall.

[0053] As Figures 3 - 4 shown, when the drive device 410 drives the first motion cable 421 to move to the right (here refers to the right side shown in the figure), the second motion cable 422 moves to the left (here refers to the left side shown in the figure), the first hinge point 3131 and the second hinge point 3141 approach each other, thereby driving the link assembly 310 to rise, and pushing the support crossbeam 220 to rotate along the support column 210 in the first direction to realize the angle adjustment of the photovoltaic module, specifically as Figure 6 shown. When the drive device 410 drives the first motion cable 421 to move to the left and the second motion cable 422 to move to the right, the first hinge point 3131 and the second hinge point 3141 approach each other, thereby driving the link assembly 310 to descend, and pushing the support crossbeam 220 to rotate along the support column 210 in the second direction to realize the angle adjustment of the photovoltaic module, specifically as Figure 7 shown.

[0054] For the flexible tracking photovoltaic bracket disclosed in the embodiment of the present utility model, the arrangement of the motion cable 420 facilitates the synchronous lifting adjustment of each link assembly 310, has a simple structure and convenient adjustment.

[0055] In some specific embodiments, the driving device 410 includes a driving motor, a driving wheel 411 and a driven wheel 412. The driving motor is in transmission connection with the driving wheel 411 to drive the driving wheel 411 to rotate. Specifically, the output shaft of the driving motor can be directly connected to the driving wheel 411. The moving cable 420 is sleeved on the driving wheel 411 and the driven wheel 412 to form a closed-loop structure. The driving motor drives the driving wheel 411 to rotate, drives the driven wheel 412 to rotate through the moving cable 420, and changes the rotation direction of the moving cable 422 by changing the rotation direction of the driving motor, so as to realize the ascending and descending of the link assembly 310, thereby adjusting the rotation angle of the photovoltaic module. By changing the rotation speed of the driving motor, the lifting speed of the link assembly 310 can be changed, and further the rotation speed of the photovoltaic module can be changed.

[0056] In some other specific embodiments, the driving device 410 further includes a speed reducer. The driving motor is connected to the driving wheel 411 via the speed reducer. The moving cable 420 is in transmission connection with the driving wheel 411 and the driven wheel 412 to realize the rotation of the moving cable 420 through the driving of the driving motor.

[0057] To change the moving direction of the moving cable 420, the driving device 410 includes a direction-changing wheel 413, and the direction-changing wheel 413 is arranged between the driving wheel 411 and the driven wheel 412. In some specific embodiments, as Figure 4 shown, there are four direction-changing wheels 413, two in a group. In a group of direction-changing wheels 413, one direction-changing wheel 413 cooperates with the first moving cable 421, and the other direction-changing wheel 413 cooperates with the second moving cable 422.

[0058] To provide support and guidance for the movement of the moving cable 420, in some specific embodiments, it further includes a plurality of supporting wheels 414. The plurality of supporting wheels 414 are arranged at intervals between the driving wheel 411 and the driven wheel 412, and the moving cable 420 is in transmission connection with each supporting wheel 414.

[0059] As Figure 2 shown, in the flexible tracking photovoltaic bracket disclosed in the embodiment of the present invention, the link assembly 310 is a four-bar mechanism. The link assembly 310 includes a first link 311, a second link 312, a third link 313 and a fourth link 314. The first end of the first link 311 is hinged to the first end of the second link 312 and is also hinged to the support cross beam 210. The third link 313 and the fourth link 314 are cross-hinged. The first end of the third link 313 is hinged to the second end of the first link 311, the first end of the fourth link 314 is hinged to the second end of the second link 312, the second end of the third link 313 is the first hinge point 3131, and the second end of the fourth link 314 is the second hinge point 3141.

[0060] When the drive mechanism 400 drives the movement of the movement cable 420, the crossing angle between the third link 313 and the fourth link 314 changes, thereby realizing the rise and fall of the link assembly 310, and further driving the support cross beam 210 to rotate, so as to realize the angle adjustment of the photovoltaic module.

[0061] An embodiment of the present invention also discloses a photovoltaic system, including the above flexible tracking photovoltaic support, so it has all the technical effects of the above flexible tracking photovoltaic support, which will not be elaborated here.

[0062] It should be noted that the various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0063] As shown in this application and the claims, unless the context clearly indicates an exceptional situation, words such as "a", "an", "one" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. An element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, commodity or device including the element.

[0064] Hereinafter, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0065] Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the core idea of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A flexible tracking photovoltaic bracket, characterized in that: include: A main cable (100) for supporting a photovoltaic module; A supporting mechanism (200), wherein the main cable (100) is arranged on the supporting mechanism (200); A connecting rod mechanism (300), the connecting rod mechanism (300) comprising a plurality of connecting rod assemblies (310) arranged at intervals, each of the connecting rod assemblies (310) being connected to the supporting mechanism (200) respectively; A driving mechanism (400) is connected to the connecting rod assemblies (310) in a transmission manner, and drives each of the connecting rod assemblies (310) to rise and fall synchronously, so as to drive the supporting mechanism (200) to rotate.

2. The flexible tracking photovoltaic bracket according to claim 1, characterized in that: The supporting mechanism (200) comprises: A supporting column (210), the supporting column (210) comprising a plurality of supporting columns arranged at intervals along an extending direction of the main cable (100); The support crossbeam (220) corresponds to the support column (210) one by one. The support crossbeam (220) is arranged on the support column (210) and is rotatably connected to the support column (210). The main cable (100) is arranged on the support crossbeam (220). The first end of the connecting rod assembly (310) is hinged to the support crossbeam (220).

3. The flexible tracking photovoltaic bracket according to claim 2, characterized in that: The connecting rod assembly (310) corresponds one-to-one to the supporting crossbeam (220); or, The number of the connecting rod assemblies (310) is less than the number of the supporting cross beams (220), and the connecting rod assemblies (310) are arranged at intervals between the supporting cross beams (220).

4. The flexible tracking photovoltaic bracket according to claim 2, characterized in that: The driving mechanism (400) comprises: A driving device (410); The motion cable (420) is connected to the drive device (410) in a transmission manner to drive the motion cable (420) to rotate. The motion cable (420) includes a first motion cable (421) and a second motion cable (422). The second end of the connecting rod assembly (310) includes a first hinge point (3131) hinged to the first motion cable (421) and a second hinge point (3141) hinged to the second motion cable (422). The first motion cable (421) and the second motion cable (422) move in opposite directions.

5. The flexible tracking photovoltaic bracket according to claim 4, characterized in that: The driving device (410) comprises a driving motor, a driving wheel (411) and a driven wheel (412); the driving motor is used to drive the driving wheel (411) to rotate; the motion cable (420) is sleeved on the driving wheel (411) and the driven wheel (412) and is in a closed loop.

6. The flexible tracking photovoltaic bracket according to claim 5, characterized in that: The driving device (410) comprises a direction-changing wheel (413), and the motion cable (420) is in transmission connection with the direction-changing wheel (413).

7. The flexible tracking photovoltaic bracket according to claim 6, characterized in that: It also includes a plurality of support wheels (414), and the motion cable (420) is transmission-connected to each of the support wheels (414).

8. The flexible tracking photovoltaic bracket according to claim 5, characterized in that: The connecting rod assembly (310) comprises a first connecting rod (311), a second connecting rod (312), a third connecting rod (313) and a fourth connecting rod (314); The first end of the first connecting rod (311) is hinged to the first end of the second connecting rod (312) and is hinged to the supporting crossbeam (220); the third connecting rod (313) is cross-hinged to the fourth connecting rod (314); the first end of the third connecting rod (313) is hinged to the second end of the first connecting rod (311); and the first end of the fourth connecting rod (314) is hinged to the second end of the second connecting rod (312); The second end of the third connecting rod (313) is a first hinge point (3131), and the second end of the fourth connecting rod (314) is a second hinge point (3141).

9. The flexible tracking photovoltaic bracket according to any one of claims 1 to 8, characterized in that: The main cables (100) include at least two cables arranged in parallel.

10. A photovoltaic system, comprising a flexible tracking photovoltaic support, characterized in that: The flexible tracking photovoltaic bracket is the flexible tracking photovoltaic bracket as described in any one of claims 1-9.

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