Flexible photovoltaic support system

Abstract

The present invention discloses a flexible photovoltaic support system, comprising a plurality of flexible photovoltaic support groups, wherein the flexible photovoltaic support groups are composed of a plurality of flexible photovoltaic support chains distributed in parallel with each other at intervals; a lighting lane that can be distorted and changed when viewed from a top-down perspective is formed between any two adjacent flexible photovoltaic support chains; the problem of long-term partial blocking of sunlight on the ground and long-term excessive exposure of some parts to sunlight, which is not conducive to uniform lighting of crops on the ground, is avoided.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic brackets. Background Art

[0002] Planting crops under the photovoltaic array can achieve the beautiful vision of comprehensive utilization of energy. In the field of traditional photovoltaic arrays, each photovoltaic panel installation base generally needs to be fixed by a ground bracket. The numerous ground bracket structures will not only interfere with the work of crop maintenance personnel or agricultural machinery on the ground, but also be detrimental to the work of agricultural machinery and other equipment. At the same time, since the ground bracket is in a fixed state, the position of the photovoltaic panel above the bracket is always in a fixed state, which may easily cause the ground where the photovoltaic array is located to be partially blocked from sunlight for a long time, and some parts are exposed to excessive sunlight for a long time, which is not conducive to uniform lighting of crops on the ground. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a flexible photovoltaic support system to improve the uniformity of lighting on the ground below the photovoltaic array.

[0004] Technical solution: To achieve the above-mentioned purpose, the flexible photovoltaic support system of the present invention includes a number of flexible photovoltaic support groups, and the flexible photovoltaic support groups are composed of a number of flexible photovoltaic support chains distributed in parallel with each other; a lighting channel that can be distorted and changed when viewed from a top-down perspective is formed between any two adjacent flexible photovoltaic support chains.

[0005] Furthermore, several photovoltaic panel mounting bases together constitute a flexible photovoltaic support chain; on a flexible photovoltaic support chain, any two adjacent photovoltaic panel mounting bases are connected to each other by at least one pair of flexible steel cables, so that each photovoltaic panel mounting base is horizontally suspended under the traction of the flexible steel cables on both sides.

[0006] Furthermore, a light-transmitting gap is formed between any two adjacent photovoltaic panel mounting bases.

[0007] Further, a photovoltaic panel mounting base in the middle of a flexible photovoltaic support chain is recorded as a central photovoltaic panel mounting base; photovoltaic panel mounting bases at both ends of a flexible photovoltaic support chain are recorded as a head end photovoltaic panel mounting base and a tail end photovoltaic panel mounting base respectively;

[0008] It also includes a first fixed beam and a second fixed beam that are fixed by a fixed bracket and are above the ground and parallel to the ground; the photovoltaic panel mounting base at the head end of each flexible photovoltaic bracket chain is connected to the first fixed beam through a flexible steel cable; the photovoltaic panel mounting base at the tail end of each flexible photovoltaic bracket chain is connected to the second fixed beam through a flexible steel cable.

[0009] Further, the central photovoltaic panel mounting bases of any two adjacent flexible photovoltaic support chains are interconnected by horizontal linkage steel cables.

[0010] Further, it also includes a first pulling device and a second pulling device. The first pulling device can apply a northward pulling force F1 to the central photovoltaic panel mounting base of the northernmost flexible photovoltaic support chain; the second pulling device can apply a southward pulling force F2 to the central photovoltaic panel mounting base of the southernmost flexible photovoltaic support chain.

[0011] Further, the photovoltaic panel mounting base includes a horizontal photovoltaic panel mounting frame. A pair of horizontally parallel structural pipes are fixedly connected to the lower side of the photovoltaic panel mounting frame through fixed connectors. Limiting inner edges are provided at both ends of the structural pipes, and the inner circles of the two limiting inner edges are steel cable through holes;

[0012] The flexible steel cables on both sides of the photovoltaic panel mounting base respectively pass through the steel cable through holes at both ends of the structural pipe and penetrate into the structural pipe; the ends of each flexible steel cable penetrating into the structural pipe are fixedly connected with a spring push plate. The spring push plate is movably matched with the inner wall of the structural pipe. A thrust spring is sleeved on a section of each flexible steel cable penetrating into the structural pipe. Both ends of each thrust spring elastically press against the spring push plate and the inner edge respectively. Each thrust spring applies an elastic thrust in the axial direction to the spring push plate, so that each flexible steel cable is in a taut state; thus, in the free state, a flexible photovoltaic support chain composed of several photovoltaic panel mounting bases is in a horizontal straight-line distribution state.

[0013] Further, the working method of the flexible photovoltaic support system:

[0014] First stage: Neither the pulling force F1 nor the pulling force F2 exists. A lighting roadway that extends in a straight line in the top-down view is formed between any two adjacent flexible photovoltaic support chains, and zebra-like sunlight projection stripes with alternating light and dark are formed on the ground;

[0015] Second stage: Apply the northward pulling force F1, so that the zebra-like sunlight projection stripes with alternating light and dark on the ground also undergo a twisting change with the middle bulging northward;

[0016] Third stage: The pulling force F1 gradually decreases until it disappears;

[0017] Fourth stage: Apply the southward pulling force F2, so that the zebra-like sunlight projection stripes with alternating light and dark on the ground also undergo a twisting change with the middle bulging southward;

[0018] Fifth stage: The pulling force F2 gradually decreases until it disappears;

[0019] Continuously cycle through the "first stage" to the "fifth stage", so that the zebra-like sunlight projection stripes with alternating light and dark on the ground twist back and forth in the north-south direction periodically. At the same time, the light spots formed by each light-transmitting gap on the ground will also change periodically.

[0020] Furthermore, in the windproof mode: the pulling force F1 and the pulling force F2 are applied simultaneously.

[0021] Beneficial effect: The present invention continuously cycles from the "first stage" to the "fifth stage", so that zebra-shaped sunlight projection stripes of alternating light and dark are formed on the ground, which periodically twist back and forth in the north-south direction. At the same time, the light spots formed on the ground by each light-transmitting gap will also change periodically, thereby avoiding the problem of long-term sunlight blocking in some parts of the ground, and long-term excessive exposure to sunlight in some parts, which is not conducive to uniform lighting of crops on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 This is a schematic diagram of the flexible photovoltaic bracket group in the initial state of this scheme;

[0023] Attached Figure 2 A schematic diagram of the connection of the mounting bases of two adjacent photovoltaic panels;

[0024] Attached Figure 3 A top view of a mounting base for a single photovoltaic panel;

[0025] Attached Figure 4 For attachment Figure 3 aa-direction cross-sectional view;

[0026] Attached Figure 5 This is a schematic diagram of the circular distortion of the lighting lane from a bird's-eye view;

[0027] Attached Figure 6 This is a schematic diagram of the photovoltaic panel after it is installed on the photovoltaic panel mounting base. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] It should be noted that the directional terms such as east, south, west, and north used in this case are not restrictive expressions, but are only for the convenience of expression. In practice, the directional settings can be set according to actual needs.

[0030] As attached Figures 1 to 6 As shown in the figure, the flexible photovoltaic support system, when viewed from above, Figure 1, including a plurality of flexible photovoltaic bracket groups 90, and the ground below the flexible photovoltaic bracket groups 90 has crops or livestock vegetation that need uniform lighting; the flexible photovoltaic bracket groups 90 are composed of a plurality of flexible photovoltaic bracket chains 2 distributed in parallel with each other; a lighting lane 8 that can be distorted and changed when viewed from a top-down perspective is formed between any two adjacent flexible photovoltaic bracket chains 2; sunlight can pass through the lighting lanes 8 extending in a straight line and be projected onto the vegetation on the ground, while each flexible photovoltaic bracket chain 2 will block the sunlight on the ground below, thereby forming zebra-shaped sunlight projection stripes of alternating light and dark on the ground; if the zebra-shaped sunlight projection stripes are unchanged, the vegetation in the shadow part of the zebra-shaped sunlight projection stripes will be without sunlight for a long time, affecting the growth of the vegetation.

[0031] like Figure 1 As shown, several photovoltaic panel mounting bases 1 arrayed along the east and west directions together constitute a flexible photovoltaic bracket chain 2, and a light-transmitting gap 3 is formed between any two adjacent photovoltaic panel mounting bases 1; on a flexible photovoltaic bracket chain 2, any two adjacent photovoltaic panel mounting bases 1 are connected to each other by at least a pair of flexible steel cables 4, so that each photovoltaic panel mounting base 1 is horizontally suspended under the traction of the flexible steel cables 4 on both sides, thereby avoiding the problem that each photovoltaic panel mounting base 1 needs to be fixed by a ground bracket. If each photovoltaic panel mounting base 1 needs to be fixed by a ground bracket, the numerous ground bracket structures will not only interfere with the work of crop maintenance personnel or agricultural machinery and equipment on the ground, but also be detrimental to the work of agricultural machinery and other equipment, and at the same time be detrimental to the uniform lighting of crops on the ground.

[0032] Figure 1 , a photovoltaic panel mounting base 1 in the middle of a flexible photovoltaic support chain 2 is recorded as a central photovoltaic panel mounting base 1a; the photovoltaic panel mounting bases 1 at both ends of a flexible photovoltaic support chain 2 are respectively recorded as a head photovoltaic panel mounting base 1b and a tail photovoltaic panel mounting base 1c; it also includes a first fixed beam 5 and a second fixed beam 6 fixed by a fixed bracket and above the ground and parallel; the first fixed beam 5 and the second fixed beam 6 extend parallel to the north-south direction; the head photovoltaic panel mounting base 1b of each flexible photovoltaic support chain 2 is connected to the first fixed beam 5 through a flexible steel cable 4; the tail photovoltaic panel mounting base 1c of each flexible photovoltaic support chain 2 is connected to the second fixed beam 6 through a flexible steel cable 4; the central photovoltaic panel mounting bases 1a of any two adjacent flexible photovoltaic support chains 2 are interconnected by a horizontal linkage steel cable 7.

[0033] It also includes a first pulling device and a second pulling device. The first pulling device can apply a northward pulling force F1 to the central photovoltaic panel mounting base 1a of the northernmost flexible photovoltaic support chain 2; the second pulling device can apply a southward pulling force F2 to the central photovoltaic panel mounting base 1a of the southernmost flexible photovoltaic support chain 2; the first pulling device and the second pulling device can be winch devices that can pull in real time to the north and to the right respectively. Since the winch is an existing equipment, the details are not repeated here.

[0034] like Figure 3 and 4 The photovoltaic panel mounting base 1 includes a horizontal photovoltaic panel mounting frame 10, such as Figure 6 , the photovoltaic panel mounting frame 10 can be fixedly mounted on the upper side of the horizontal solar photovoltaic panel 100; Figure 3 and 4 A pair of horizontal parallel structural tubes 9 are fixedly connected to the lower side of the photovoltaic panel mounting frame 10 through a fixed connector 10, and both ends of the structural tubes 9 are provided with limiting inner edges 91, and the inner circles of the two limiting inner edges 91 are both steel cable passing holes 11;

[0035] The flexible steel cables 4 on both sides of the photovoltaic panel mounting base 1 are respectively inserted into the structural tube 9 through the steel cable passing holes 11 at both ends of the structural tube 9; the ends of each flexible steel cable 4 inserted into the structural tube 9 are fixedly connected with a spring push plate 13, and the spring push plate 13 is movably matched with the inner wall of the structural tube 9. A section of each flexible steel cable 4 inserted into the structural tube 9 is sleeved with a thrust spring 12, and the two ends of each thrust spring 12 elastically press the spring push plate 13 and the inner edge 91 respectively, and each thrust spring 12 applies an elastic thrust in the axial direction to the spring push plate 13, so that each flexible steel cable 4 is in a taut state; thereby, in a free state, a flexible photovoltaic bracket chain 2 composed of a plurality of photovoltaic panel mounting bases 1 is in a horizontally linear distribution form.

[0036] Working principle: The cyclic twisting process of lighting tunnel 8 from a bird's-eye view:

[0037] The first stage: Assume that in the initial state, the pulling force F1 and the pulling force F2 do not exist. At this time, both ends of each flexible steel cable 4 are in a taut state due to the force applied by the thrust spring 12 in the structural tube 9. The parts of each flexible steel cable 4 exposed outside the structural tube 9 spontaneously tend to the shortest state, so that a number of photovoltaic panel mounting bases 1 together constitute each flexible photovoltaic bracket chain 2 in a horizontal straight line distribution extending in the east and west directions; at this time, a lighting lane 8 extending in a straight line from a top-down perspective is formed between any two adjacent flexible photovoltaic bracket chains 2, such as Figure 4As shown in the right figure; at this time, sunlight can pass through the lighting tunnels 8 extending in straight lines and project onto the vegetation on the ground, while the photovoltaic panels on each flexible photovoltaic support chain 2 will block the sunlight on the ground below, so that the ground forms zebra-shaped sunlight projection stripes of light and dark; if the zebra-shaped sunlight projection stripes are unchanged, the vegetation in the shadow part of the zebra-shaped sunlight projection stripes will be without sunlight for a long time, affecting the growth of vegetation;

[0038] The second stage: the first pulling device is used to apply a pulling force F1 toward the north to the central photovoltaic panel mounting base 1a of the northernmost flexible photovoltaic support chain 2. Figure 4 In the above figure, under the forced pulling of F1, the central photovoltaic panel mounting base 1a of the northernmost flexible photovoltaic support chain 2 is offset to the north for a certain distance, and under the synchronous linkage of each linkage steel cable 7, the central photovoltaic panel mounting base 1a of all flexible photovoltaic support chains 2 are synchronously offset to the north for a certain distance; under the forced northward displacement of the central photovoltaic panel mounting base 1a of each flexible photovoltaic support chain 2, the middle part of the flexible photovoltaic support chain 2 is twisted to convexly northward from a bird's-eye view, each thrust spring 12 is adaptively compressed, and the part of each flexible steel cable 4 exposed outside the structural tube 9 is adaptively lengthened; at this time, the lighting lane 8, which originally extended in a straight line from a bird's-eye view, undergoes a twisting change to convexly northward from the middle part, as shown in FIG. Figure 4 As a result, the zebra-shaped sunlight stripes on the ground, which were alternately light and dark, also changed in a distorted way, with the middle part convex toward the north, so that some parts of the ground that were originally unable to receive sunlight began to receive sunlight;

[0039] The third stage: Then the first pulling device is controlled to gradually reduce the pulling force F1 toward the north to disappear, and the parts of each flexible steel cable 4 exposed outside the structural tube 9 are spontaneously shortened to the shortest state, so that the flexible photovoltaic bracket chains 2 formed by the plurality of photovoltaic panel mounting bases 1 are distributed horizontally and straightly in the east and west directions again; and the state is restored to the initial state, such as Figure 4 As shown in the left figure;

[0040] The fourth stage: the second pulling device is used to apply a southward pulling force F2 to the central photovoltaic panel mounting base 1a of the southernmost flexible photovoltaic support chain 2. Figure 4In the figure below, under the forced pulling of F2, the central photovoltaic panel mounting base 1a of the southernmost flexible photovoltaic support chain 2 is offset to the south for a certain distance, and under the synchronous linkage of each linkage steel cable 7, the central photovoltaic panel mounting base 1a of all flexible photovoltaic support chains 2 are synchronously offset to the south for a certain distance; under the forced southward displacement of the central photovoltaic panel mounting base 1a of each flexible photovoltaic support chain 2, the middle part of the flexible photovoltaic support chain 2 is twisted to convexly southward from a bird's-eye view, each thrust spring 12 is adaptively compressed, and the part of each flexible steel cable 4 exposed outside the structural tube 9 is adaptively lengthened; at this time, the lighting lane 8, which originally extended in a straight line from a bird's-eye view, undergoes a twisting change to convexly southward from the middle part, as shown in FIG. Figure 4 As shown in the figure below, the zebra-shaped sunlight projection stripes on the ground, which are alternately light and dark, also undergo a distortion change with the middle part convex toward the south, so that some parts of the ground that were originally unable to receive sunlight radiation begin to receive sunlight;

[0041] The fifth stage: Then the first pulling device is controlled to gradually reduce the southward pulling force F2 to disappear, and the parts of each flexible steel cable 4 exposed outside the structural tube 9 are spontaneously shortened to the shortest state, so that the flexible photovoltaic bracket chains 2 formed by the plurality of photovoltaic panel mounting bases 1 are distributed horizontally and straightly in the east and west directions again; and the initial state is restored, such as Figure 4 As shown in the right figure, we have returned to the "first stage";

[0042] The "first stage" to the "fifth stage" are continuously cycled, so that zebra-shaped sunlight projection stripes of light and dark are formed on the ground, which twist back and forth periodically in the north-south direction. At the same time, the light spots formed on the ground by each light-transmitting gap 3 will also change periodically, thereby avoiding the problem of long-term sunlight blocking in some parts of the ground and long-term excessive exposure to sunlight in some parts, which is not conducive to uniform lighting of crops on the ground.

[0043] Windproof Mode:

[0044] In the strong wind mode, the first pulling device and the second pulling device simultaneously apply sufficiently large pulling force F1 and pulling force F2; the pulling force F1 and pulling force F2 are transmitted to the central photovoltaic panel mounting base 1a of each flexible photovoltaic bracket chain 2 under the synchronous linkage of each linkage steel cable 7, thereby preventing each central photovoltaic panel mounting base 1a from being easily deflected under the action of wind, thereby achieving a wind-proof effect.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Flexible photovoltaic support system, characterized by: It comprises a plurality of flexible photovoltaic support groups (90), wherein the flexible photovoltaic support groups (90) are composed of a plurality of flexible photovoltaic support chains (2) distributed in parallel with each other at intervals; a lighting lane (8) that can be distorted and changed when viewed from a top view is formed between any two adjacent flexible photovoltaic support chains (2); A plurality of photovoltaic panel mounting bases (1) together form a flexible photovoltaic support chain (2); on a flexible photovoltaic support chain (2), any two adjacent photovoltaic panel mounting bases (1) are mutually pulled and connected by at least one pair of flexible steel cables (4), so that each photovoltaic panel mounting base (1) is suspended horizontally under the pulling of the flexible steel cables (4) on both sides; A light-transmitting gap (3) is formed between any two adjacent photovoltaic panel mounting bases (1); A photovoltaic panel mounting base (1) in the middle of a flexible photovoltaic support chain (2) is recorded as a central photovoltaic panel mounting base (1a); photovoltaic panel mounting bases (1) at both ends of a flexible photovoltaic support chain (2) are recorded as a head end photovoltaic panel mounting base (1b) and a tail end photovoltaic panel mounting base (1c) respectively; It also includes a first fixed crossbeam (5) and a second fixed crossbeam (6) which are fixed by a fixed bracket and are above the ground and parallel to the ground; the photovoltaic panel mounting base (1b) at the head end of each flexible photovoltaic bracket chain (2) is connected to the first fixed crossbeam (5) via a flexible steel cable (4); and the photovoltaic panel mounting base (1c) at the tail end of each flexible photovoltaic bracket chain (2) is connected to the second fixed crossbeam (6) via a flexible steel cable (4); The central photovoltaic panel mounting bases (1a) of any two adjacent flexible photovoltaic support chains (2) are linked and connected to each other via horizontal linkage steel cables (7); It also comprises a first pulling device and a second pulling device, wherein the first pulling device can apply a pulling force F1 toward the north to the central photovoltaic panel mounting base (1a) of the most northern flexible photovoltaic support chain (2); and the second pulling device can apply a pulling force F2 toward the south to the central photovoltaic panel mounting base (1a) of the most southern flexible photovoltaic support chain (2); Phase 1: The pulling force F1 and the pulling force F2 do not exist, and a lighting lane (8) extending in a straight line when viewed from above is formed between any two adjacent flexible photovoltaic support chains (2), and zebra-shaped sunlight projection stripes of alternating light and dark are formed on the ground; The second stage: Apply the pulling force F1 toward the north, so that the zebra-shaped sunlight projection stripes with light and dark on the ground also undergo a distortion change with the middle part convex toward the north; The third stage: the pulling force F1 gradually decreases and disappears; Stage 4: Apply the southward pulling force F2, so that the zebra-shaped sunlight projection stripes with light and dark on the ground also undergo a distortion change with the middle part convex toward the south; Stage 5: The pulling force F2 gradually decreases and disappears; The cycle from "stage 1" to "stage 5" is repeated continuously, so that the ground forms a zebra-shaped stripe of light and dark sunlight that periodically twists back and forth in the north-south direction. At the same time, the light spots formed on the ground by each light-transmitting gap (3) will also change periodically. In windproof mode: pulling force F1 and pulling force F2 are applied simultaneously.

2. The flexible photovoltaic support system according to claim 1, characterized in that: The photovoltaic panel mounting base (1) comprises a horizontal photovoltaic panel mounting frame (10), a pair of horizontal parallel structural tubes (9) being fixedly connected to the lower side of the photovoltaic panel mounting frame (10) via a fixed connection piece (10), both ends of the structural tubes (9) being provided with limiting inner edges (91), and the inner circles of the two limiting inner edges (91) are both steel cable passing holes (11); The flexible steel cables (4) on both sides of the photovoltaic panel mounting base (1) are respectively inserted into the structural tube (9) through the steel cable passing holes (11) at both ends of the structural tube (9); the ends of the flexible steel cables (4) inserted into the structural tube (9) are fixedly connected with spring push disks (13), the spring push disks (13) are movably matched with the inner wall of the structural tube (9), and a section of each flexible steel cable (4) inserted into the structural tube (9) is sleeved with a thrust spring (12), and the two ends of each thrust spring (12) elastically press the spring push disk (13) and the inner edge (91) respectively, and each thrust spring (12) applies an elastic thrust in the axial direction to the spring push disk (13), so that each flexible steel cable (4) is in a taut state; thereby, in a free state, a flexible photovoltaic bracket chain (2) formed by a plurality of photovoltaic panel mounting bases (1) is in a horizontal straight line distribution state.

Images