Flexible photovoltaic power generation mechanism and power generation system

Abstract

The utility model provides a flexible photovoltaic power generation mechanism and a power generation system, and the power generation mechanism comprises support columns arranged at four corners of a rectangle, a first sleeve on a first support column is connected with a first flexible cable, a second sleeve on a second support column is connected with a second flexible cable, and a third sleeve on a third support column is connected with a third flexible cable. A fourth sleeve on the fourth supporting column is connected with a fourth flexible cable; the first flexible cable and the second flexible cable are connected through a first pretension steel cable connector, the third flexible cable and the fourth flexible cable are connected through a second pretension steel cable connector, and a midpoint connecting line between the first supporting column and the second supporting column is parallel to a midpoint connecting line between the third supporting column and the fourth supporting column. The first flexible cable and the third flexible cable are used for bearing a first photovoltaic panel, and the second flexible cable and the fourth flexible cable are used for bearing a second photovoltaic panel; according to the utility model, the length of the cross brace can be adjusted, the supporting strength can be improved, and the application range of the whole photovoltaic system is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, and in particular to a flexible photovoltaic power generation mechanism and a flexible photovoltaic power generation. Background Art

[0002] The statements in this section merely provide background technology related to the present invention and do not necessarily constitute prior art.

[0003] Photovoltaic panels are semiconductor devices that use the photoelectric effect to convert sunlight into direct current, and are essential devices for photovoltaic power generation systems. Photovoltaic panels cannot be directly fixed on the ground, and are generally raised to a certain height from the bottom surface by fixing brackets to ensure that each photovoltaic panel in the photovoltaic power generation system receives light evenly, thereby improving power generation efficiency.

[0004] Traditional fixed brackets cannot adjust height and angle. Once the photovoltaic panels are fixed, they cannot rotate, and the power generation efficiency is limited. Currently, the common photovoltaic brackets on the market are mainly rigid rods. The entire structure, including the cross bar that bears less load, is rigid, and the amount of steel used and the cost are high. Some photovoltaic systems use flexible brackets that convert the cross bar into steel ropes or cables, but both structures have the problem that the distance between the two poles cannot be adjusted after construction or the adjustment process is too cumbersome, and they cannot be reused. Utility Model Content

[0005] In order to address the deficiencies in the prior art, the utility model provides a flexible photovoltaic power generation mechanism and power generation system. The cross-bracing part supporting the photovoltaic panels adopts flexible steel ropes or cables, which are fixed by a pre-tensioning stretching method. The length can be adjusted and the supporting strength can be improved, thereby improving the applicability of the entire photovoltaic system.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a flexible photovoltaic power generation mechanism.

[0008] A flexible photovoltaic power generation mechanism, comprising: pillars arranged at four corner points of a rectangle, a first sleeve on the first pillar connected to a first flexible cable, a second sleeve on the second pillar connected to a second flexible cable, a third sleeve on the third pillar connected to a third flexible cable, and a fourth sleeve on the fourth pillar connected to a fourth flexible cable;

[0009] The first flexible cable is connected to the second flexible cable via a first pre-tensioned steel cable connector, and the third flexible cable is connected to the fourth flexible cable via a second pre-tensioned steel cable connector;

[0010] The first flexible cable and the third flexible cable are used to carry the first photovoltaic panel, and the second flexible cable and the fourth flexible cable are used to carry the second photovoltaic panel.

[0011] As a further limitation of the first aspect of the utility model, the first sleeve can slide up and down along the first pillar, the second sleeve can slide up and down along the second pillar, the third sleeve can slide up and down along the third pillar, and the fourth sleeve can slide up and down along the fourth pillar.

[0012] As a further limitation of the first aspect of the utility model, when pre-tensioned, the central axes of the first flexible cable and the second flexible cable are collinear and parallel to the horizontal plane, and the central axes of the third flexible cable and the fourth flexible cable are collinear and parallel to the horizontal plane.

[0013] As a further limitation of the first aspect of the utility model, the bottoms of the first pillar, the second pillar, the third pillar and the fourth pillar are all pointed screw pile foundations.

[0014] As a further limitation of the first aspect of the utility model, the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are all semicircular sleeves.

[0015] As a further limitation of the first aspect of the utility model, the first flexible rope, the second flexible rope, the third flexible rope and the fourth flexible rope are all flexible steel ropes or flexible steel cables.

[0016] In a second aspect, the utility model provides a flexible photovoltaic power generation system.

[0017] A flexible photovoltaic power generation system comprises a plurality of flexible photovoltaic power generation mechanisms as described in the first aspect of the utility model arranged in a row, two adjacent flexible photovoltaic power generation mechanisms share two pillars, and two semicircular sleeves are sleeved on the shared pillars, which are respectively used to connect the flexible cables of the two flexible photovoltaic power generation mechanisms.

[0018] As a further limitation of the second aspect of the present invention, the flexible photovoltaic power generation mechanisms are arranged in multiple rows, and each row includes at least two of the flexible photovoltaic power generation mechanisms described in the first aspect of the present invention.

[0019] As a further limitation of the second aspect of the present invention, the outermost flexible photovoltaic power generation mechanism in each row is grounded through a grounding steel cable, and the grounding steel cable is connected to the outer side support of the corresponding flexible photovoltaic power generation mechanism.

[0020] As a further limitation of the second aspect of the utility model, the central axes of the first pillars and the second pillars of each row of flexible photovoltaic power generation mechanisms are coplanar, and the central axes of the third pillars and the fourth pillars of each row of flexible photovoltaic power generation mechanisms are coplanar.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. The utility model innovatively proposes a flexible photovoltaic power generation mechanism. The horizontal bracing part supporting the solar panel adopts flexible steel ropes or steel cables, which are fixed by pre-tensioning stretching method. The steel cables or steel cables are connected by prestressed connectors, which can adjust the length and improve the supporting strength, thereby improving the applicability of the entire photovoltaic system.

[0023] 2. The utility model innovatively proposes a flexible photovoltaic power generation mechanism. Each single column is regarded as a single pile foundation structure. The part of the single pile foundation at the bottom of each pillar buried underground adopts a pointed spiral pile structure, which is convenient for installation and construction and is suitable for onshore and shallow sea geology.

[0024] 3. The utility model innovatively proposes a flexible photovoltaic power generation system with a modular design. Each flexible photovoltaic power generation mechanism (as a module) is relatively independent, and the construction, power generation operation and maintenance are not affected by other modules. Multiple modules can be combined, and the construction and installation are convenient and the assembly is simple. The specific system shape can be arranged according to the terrain, which has a certain flexibility.

[0025] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0027] Figure 1 A schematic diagram of a flexible photovoltaic power generation mechanism with a photovoltaic panel provided in Example 1 of the utility model;

[0028] Figure 2 A schematic diagram of a flexible photovoltaic power generation mechanism without a photovoltaic panel provided in Example 1 of the utility model;

[0029] Figure 3 A schematic diagram of a pre-tensioned steel cable connector provided in Example 1 of the utility model;

[0030] Figure 4 An overall schematic diagram of a flexible photovoltaic power generation system provided in Example 2 of the utility model;

[0031] Figure 5 A top view of the flexible photovoltaic power generation system provided in Example 2 of the utility model;

[0032] Among them, 1-flexible photovoltaic power generation mechanism; 2-first pillar; 3-second pillar; 4-third pillar; 5-fourth pillar; 6-first flexible cable; 7-second flexible cable; 8-third flexible cable; 9-fourth flexible cable; 10-first grounding steel cable; 11-second grounding steel cable; 12-first photovoltaic panel; 13-second photovoltaic panel; 14-first pre-stressed steel cable connector; 15-second pre-stressed steel cable connector; 20-ground fixing device; 21-pointed screw pile foundation; 22-nut. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0035] In the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0036] Embodiment 1:

[0037] In this implementation, a flexible photovoltaic power generation mechanism is proposed, such as Figure 1 and Figure 2 As shown, it includes: pillars arranged at four corner points of a rectangle, namely a first pillar 2, a second pillar 3, a third pillar 4 and a fourth pillar 5, a first sleeve on the first pillar 2 is connected to a first flexible cable 6, a second sleeve on the second pillar 3 is connected to a second flexible cable 7, a third sleeve on the third pillar 4 is connected to a third flexible cable 8, and a fourth sleeve on the fourth pillar 5 is connected to a fourth flexible cable 9;

[0038] The first flexible cable 6 and the second flexible cable 7 are connected by a first pre-stressed steel cable connector 14, the third flexible cable 8 and the fourth flexible cable 9 are connected by a second pre-stressed steel cable connector 15, and the two steel cables are connected by the pre-stressed steel cable connector in the middle of the bracket to form the skeleton of the flexible photovoltaic bracket. The length of the steel cable can be adjusted according to the specific size of the photovoltaic panel to meet the requirements of different types of power plants.

[0039] like Figure 3 As shown, the first flexible cable 6 and the second flexible cable 7 are respectively connected to the nuts on both sides of the first pre-tensioned steel cable connector 14, and the same is applicable to the connection of other flexible cables, which will not be repeated.

[0040] The central axes of the first pillar 2 and the second pillar 3 are coplanar, the central axes of the third pillar 4 and the fourth pillar 5 are coplanar, and the plane where the central axes of the first pillar 2 and the second pillar 3 are located is parallel to the plane where the central axes of the third pillar 4 and the fourth pillar 5 are located.

[0041] In this implementation, the first flexible cable 6 and the third flexible cable 8 are used to carry the first photovoltaic panel 12 , and the second flexible cable 7 and the fourth flexible cable 9 are used to carry the second photovoltaic panel 13 .

[0042] In this implementation, preferably, the first sleeve can slide up and down along the first pillar 2, the second sleeve can slide up and down along the second pillar 3, the third sleeve can slide up and down along the third pillar 4, and the fourth sleeve can slide up and down along the fourth pillar 5.

[0043] It can be understood that the sliding here means that the first sleeve is sleeved on the first pillar 2 by friction. The first sleeve will not move spontaneously due to the existence of friction when not subject to upper and lower forces, and will only move up and down when upper and lower external forces are applied; for example, in some other implementations, when the first sleeve is pushed by an electric push rod, the first sleeve can move up and down; or when it is pushed up and down by manpower, it can also be pushed up and down; thereby, the light-receiving surface of the photovoltaic panel can be adjusted, and manual or automatic adjustments can be made for different seasons or different weather; or, in some other implementations, the azimuth and altitude angles of the photovoltaic panel are controlled by adjusting the height of both ends of the steel cable to ensure that the photovoltaic panel can be perpendicular to the sunlight, and a time control method is adopted. The control algorithm calculates the solar azimuth and altitude angle at a certain moment according to the local longitude and latitude position, and sets in advance the height that the semi-circular sleeve needs to change at every moment to achieve tracking of the sun's position. The specific light-chasing method belongs to the extended application of the present application and is not the core protection point of the present utility model. The light-chasing method can also be implemented in an existing manner, which will not be described in detail here.

[0044] In this implementation, preferably, when pre-tensioned, the central axes of the first flexible cable 6 and the second flexible cable 7 are collinear and parallel to the horizontal plane, and the central axes of the third flexible cable 8 and the fourth flexible cable 9 are collinear and parallel to the horizontal plane. This is to ensure the stability of the photovoltaic panel and avoid overturning of the photovoltaic panel.

[0045] In this implementation, preferably, the bottoms of the first pillar 2 , the second pillar 3 , the third pillar 4 and the fourth pillar 5 are all pointed screw pile foundations 21 .

[0046] In the present implementation, preferably, the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are all semicircular sleeves, which can ensure that two sleeves are sleeved on one pillar, so that the same pillar can be used for two adjacent flexible photovoltaic power generation mechanisms respectively.

[0047] In this implementation, preferably, the first flexible rope 6, the second flexible rope 7, the third flexible rope 8 and the fourth flexible rope 9 are all flexible steel ropes or flexible steel cables.

[0048] Embodiment 2:

[0049] In the present implementation, a flexible photovoltaic power generation system is provided, comprising a plurality of flexible photovoltaic power generation mechanisms 1 as described in Embodiment 1 of the utility model arranged in a row, two adjacent flexible photovoltaic power generation mechanisms 1 share two pillars, and two semicircular sleeves are provided on the shared pillars, which are respectively used to connect the flexible cables of the two flexible photovoltaic power generation mechanisms.

[0050] In this implementation, preferably, the entire system is arranged in multiple rows, and each row includes at least two flexible photovoltaic power generation mechanisms described in Example 1 of the utility model.

[0051] In the present implementation, preferably, the outermost flexible photovoltaic power generation mechanism in each row is grounded (connected to the ground fixing device 20) through a grounding steel cable, and the grounding steel cable is connected to the outer side pillar of the corresponding flexible photovoltaic power generation mechanism. Specifically, the first grounding steel cable 10 is connected to the first pillar 2, and the second grounding steel cable 11 is connected to the third pillar 4.

[0052] In the present implementation, preferably, the central axes of the first pillars 2 and the second pillars 3 of each row of flexible photovoltaic power generation mechanisms are coplanar, and the central axes of the third pillars 4 and the fourth pillars 5 of each row of flexible photovoltaic power generation mechanisms are coplanar.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flexible photovoltaic power generation mechanism, characterized in that: include: The pillars are arranged at the four corner points of the rectangle, the first sleeve on the first pillar is connected to the first flexible cable, the second sleeve on the second pillar is connected to the second flexible cable, the third sleeve on the third pillar is connected to the third flexible cable, and the fourth sleeve on the fourth pillar is connected to the fourth flexible cable; The first flexible cable is connected to the second flexible cable via a first pre-tensioned steel cable connector, the third flexible cable is connected to the fourth flexible cable via a second pre-tensioned steel cable connector, and a midpoint line between the first support and the second support is parallel to a midpoint line between the third support and the fourth support; The first flexible cable and the third flexible cable are used to carry the first photovoltaic panel, and the second flexible cable and the fourth flexible cable are used to carry the second photovoltaic panel.

2. The flexible photovoltaic power generation mechanism according to claim 1, characterized in that: The first sleeve can slide up and down along the first pillar, the second sleeve can slide up and down along the second pillar, the third sleeve can slide up and down along the third pillar, and the fourth sleeve can slide up and down along the fourth pillar.

3. The flexible photovoltaic power generation mechanism according to claim 1 or 2, characterized in that: When tensioned by pre-tension, the central axes of the first flexible cable and the second flexible cable are collinear and parallel to the horizontal plane, and the central axes of the third flexible cable and the fourth flexible cable are collinear and parallel to the horizontal plane.

4. The flexible photovoltaic power generation mechanism according to claim 1, characterized in that: The bottoms of the first pillar, the second pillar, the third pillar and the fourth pillar are all pointed screw pile foundations.

5. The flexible photovoltaic power generation mechanism according to claim 1, characterized in that: The first sleeve, the second sleeve, the third sleeve and the fourth sleeve are all semicircular sleeves.

6. The flexible photovoltaic power generation mechanism according to claim 1, characterized in that: The first flexible rope, the second flexible rope, the third flexible rope and the fourth flexible rope are all flexible steel ropes or flexible steel ropes.

7. A flexible photovoltaic power generation system, characterized in that: It comprises a plurality of flexible photovoltaic power generation mechanisms as described in any one of claims 1 to 6 arranged in a row, two adjacent flexible photovoltaic power generation mechanisms share two pillars, and two semicircular sleeves are sleeved on the shared pillars, which are respectively used to connect the flexible cables of the two flexible photovoltaic power generation mechanisms.

8. The flexible photovoltaic power generation system according to claim 7, characterized in that: Arranged in multiple rows, each row includes at least two flexible photovoltaic power generation mechanisms as described in any one of claims 1-5.

9. The flexible photovoltaic power generation system according to claim 7, characterized in that: The outermost flexible photovoltaic power generation mechanism in each row is grounded through a grounding steel cable, and the grounding steel cable is connected to the outer side support of the corresponding flexible photovoltaic power generation mechanism.

10. The flexible photovoltaic power generation system according to claim 7, characterized in that: The first pillars and the second pillars of the flexible photovoltaic power generation mechanisms arranged in each row are collinear, and the third pillars and the fourth pillars of the flexible photovoltaic power generation mechanisms arranged in each row are collinear.

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