Butterfly type amplification tracking photovoltaic support and photovoltaic system

Abstract

The utility model discloses a butterfly type amplification tracking photovoltaic support which comprises a first base, a second base, a front vertical beam, a cross beam, a vertical beam and a force arm. The first base is provided with a stand column, the stand column is connected with a front vertical beam, the upper side of the front vertical beam is connected with a corner connecting piece, the corner connecting piece is connected to a cross beam through threads, the second base is connected with one end of a force arm, the force arm is connected with an electric push rod, and the other end of the force arm is hinged to a conversion support. The cross beams and the vertical beams are arranged through the conversion supports and the corner connecting pieces and used for bearing photovoltaic panels. According to the utility model, the azimuth angle of the sun can be automatically tracked by rapidly and continuously adjusting the inclination angles of the cross beam and the vertical beam, and the butterfly type tracking photovoltaic power station support is stable in structure, excellent in wind resistance, capable of spreading wings windward and stably flying like a butterfly, simple and convenient to manufacture, suitable for batch production, simple to install and low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic brackets, and specifically relates to a butterfly-type amplification tracking photovoltaic bracket and a photovoltaic system. Background Art

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

[0003] Photovoltaic brackets are an important part of solar photovoltaic power generation systems. At present, there are three common types of photovoltaic brackets for large-scale ground photovoltaic power stations: fixed tilt, seasonally adjustable and tracking. According to the different tracking methods of the brackets, the tracking type is divided into oblique single-axis tracking, flat single-axis tracking and dual-axis tracking. Fixed tilt brackets refer to the installation tilt angle of the brackets that uses the tilt angle at which the photovoltaic panels obtain the maximum solar radiation in a year, and the tilt angle remains unchanged during the operation of the power station. Seasonally adjustable brackets refer to the annual time divided into several sections according to the annual lighting conditions of the location of the photovoltaic power station, and the tilt angle of the photovoltaic module with the largest power generation in a fixed time period is found. The tilt angle of the photovoltaic module is adjusted a limited number of times each year according to the optimal tilt angle in different time periods. After each angle adjustment, the bracket is fixed with its own connector to form a bracket form that is as stable as a fixed tilt bracket. Tracking brackets are mainly a bracket form that obtains more solar radiation by tracking the solar altitude angle and azimuth through motor control, thereby increasing power generation.

[0004] The existing adjustable photovoltaic bracket mainly uses the method of drilling holes at intervals on the upper and lower columns, adjusting the height of the photovoltaic panel by coordinating the positions of the different holes on the upper and lower columns, and then tightening with bolts. This method can only intermittently adjust the height of the fixed setting, and the adjustment capacity is limited. Moreover, most fixed photovoltaic brackets are only suitable for use on flat sites. For example, patent application No. 201420210669.9 "A photovoltaic bracket system with adjustable tilt angle" discloses a photovoltaic component support beam, a photovoltaic component support vertical beam and a fixed seat, and the fixed seat is provided with a fixing hole. The support beam and the support vertical beam are rotatably installed on the fixed seat. In combination with the attached drawings, it can be seen that the fixed seat needs to be placed on the ground. It is only suitable for use on flat sites and is not suitable for complex terrain such as rugged ground. In addition, all structural parts of the photovoltaic bracket are standard parts, which are not suitable for use on complex terrain. Because in complex terrain, the height dimension that needs to be adjusted is very likely to be just what cannot be achieved by coordinating the interval holes. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a butterfly-type amplification tracking photovoltaic bracket and a photovoltaic system, which can automatically track the azimuth of the sun. The butterfly-type tracking photovoltaic bracket has a stable structure and low installation cost.

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

[0007] In the first aspect, a butterfly-type amplified tracking photovoltaic bracket is proposed, comprising a first base, a second base, a front vertical beam, a horizontal beam, a vertical beam and a force arm;

[0008] The first base is provided with a column, the column is connected to the front vertical beam, the upper side of the front vertical beam is connected to an angle connector, the angle connector is connected to the cross beam through a thread, the second base is connected to one end of a lever arm, the lever arm is connected to an electric push rod, and the other end of the lever arm is hinged to a conversion bracket;

[0009] The horizontal beams and vertical beams are arranged through conversion brackets and corner connectors to carry photovoltaic panels.

[0010] As a further technical solution, the horizontal beams and vertical beams are arranged to form a bearing member, presenting a dragonfly backbone skeleton structure.

[0011] As a further technical solution, the electric push rod is connected to a control box, and a time relay is installed in the control box.

[0012] As a further technical solution, the lever arm includes an upper lever arm and a lower lever arm, one end of the upper lever arm is movably connected to one end of the lower lever arm, the other end of the upper lever arm is hinged to the conversion bracket, and the other end of the lower lever arm is hinged to the second base.

[0013] As a further technical solution, the electric push rod is located in the middle of the entire lever arm. Specifically, the electric push rod is movably connected to the upper lever arm and the lower lever arm.

[0014] As a further technical solution, a hinge is also included, and the column is connected to the front vertical beam through a hinge.

[0015] As a further technical solution, two first bases are arranged side by side in the front and back, columns are installed on the two first bases, and the two columns are connected by a connecting plate.

[0016] As a further technical solution, it also includes a support rod, one end of which is welded to the connecting plate, and the other end of which is welded to the supporting member.

[0017] As a further technical solution, the first base and the second base are connected to a block made of concrete by screws.

[0018] In the second aspect, a butterfly-type amplified tracking photovoltaic system is proposed, which is characterized by comprising a solar photovoltaic panel and a plurality of butterfly-type amplified tracking photovoltaic brackets as described in the first aspect.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The scissor-type magnification structure formed by the utility model enables the photovoltaic panel to rise or fall 2.7° every time the electric push rod advances (or retreats) 1 mm, thereby achieving the purpose of fast and accurate tracking of the scissor-type magnification.

[0021] The utility model can automatically track the azimuth of the sun by quickly and continuously adjusting the inclination angles of the horizontal beam and the vertical beam. The butterfly-type tracking photovoltaic power station bracket has a stable structure and excellent wind resistance. It can spread its wings and fly steadily against the wind like a butterfly. It is easy to make, suitable for mass production, simple to install and low cost.

[0022] The utility model provides a butterfly-type amplified tracking photovoltaic bracket. This photovoltaic bracket cannot be linked, and each station is independent. The requirements for the installation ground are not high. It can also be used for continuous installation of agricultural and photovoltaic complementarity. The shade area is small and does not affect crop production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the butterfly-type amplification tracking photovoltaic bracket structure provided by the utility model;

[0025] Figure 2 This is a schematic diagram of the main view of the butterfly-type amplified tracking photovoltaic bracket provided by the utility model;

[0026] Figure 3 This is a schematic diagram of the corner connection of the utility model;

[0027] In the figure, 1. second base; 2. electric push rod; 3. lever arm; 4. conversion bracket; 5. cross beam; 6. vertical beam; 7. hinge; 8. front vertical beam; 9. corner connector; 10. first base. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation 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.

[0030] Embodiment 1

[0031] This embodiment provides a butterfly-type amplification tracking photovoltaic bracket, such as Figure 1As shown, it includes: a first base 10, a second base 1, an electric push rod 2, a force arm 3, a conversion bracket 4, a cross beam 5, a vertical beam 6, a hinge 7, a front vertical beam 8 and an angle connector 9;

[0032] In this embodiment, two first bases are arranged side by side in the front and back, screw holes are provided on the first bases, and they are fixed to the soil block made of concrete by screws, and columns are installed on the two first bases, the two columns are arranged with the front lower and the rear higher, and the two columns are connected by a connecting plate, the upper ends of the columns are connected to the front vertical beam by a hinge, the upper side of the front vertical beam is connected to the corner connector, and the corner connector is connected to the cross beam by threads.

[0033] One end of the lever arm is connected to the second base, and the lever arm includes an upper lever arm and a lower lever arm. Specifically, one end of the upper lever arm is movably connected to one end of the lower lever arm, the other end of the upper lever arm is hinged to the conversion bracket, and the other end of the lower lever arm is hinged to the second base. The lever arm is also connected to an electric push rod. Specifically, the electric push rod is located in the middle of the entire lever arm, and the electric push rod is movably connected to the upper lever arm and the lower lever arm. The second base is provided with screw holes and is fixed to a soil block made of concrete by screws. The two lever arms are hingedly connected to form a scissor-type amplification structure, which achieves the effect of fast and accurate tracking, so that for every 1mm forward of the electric push rod, the tracking angle of the photovoltaic panel rises (or falls) 2.7°, which is amplified by 2.7 times.

[0034] The electric push rod is connected to a control box, in which a time relay is installed for time control. The time relay cooperates with the electric push rod to achieve tracking purposes.

[0035] The horizontal beams and vertical beams are arranged and formed into supporting parts through conversion brackets and corner connectors, and the overall structure presents a dragonfly backbone skeleton structure, that is, a double inverted triangle supporting structure. The structure is more stable and has excellent wind resistance. It can spread its wings against the wind like a butterfly. It is easy to make, suitable for mass production, simple to install and low cost.

[0036] The photovoltaic support also includes a plurality of support rods, one end of which is welded to the connecting plate, and the other end is welded to the supporting member, and the support rods are symmetrically arranged relative to the connecting plate. The support rods and the supporting member present a triangular structure as a whole, which increases the stability of the overall structure.

[0037] The working principle of the utility model is:

[0038] The upper and lower force arms are hinged together with an axis, and the other end of the upper force arm is connected to the bracket; the other end of the lower force arm is connected to the base; and then the upper and lower force arms are connected with an electric push rod to form a scissor-type amplification structure. For every 1mm forward (or backward) movement of the electric push rod, the photovoltaic panel rises or falls 2.7°, thus achieving the purpose of scissor-type amplification, fast and accurate tracking.

[0039] Embodiment 2

[0040] This embodiment provides a butterfly-type amplified tracking photovoltaic system, including a solar photovoltaic panel and a plurality of butterfly-type amplified tracking photovoltaic brackets as described in the above-mentioned embodiment 1, wherein the solar photovoltaic panel is fixed on a bearing member composed of a horizontal beam and a vertical beam.

[0041] 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 butterfly-type amplification tracking photovoltaic bracket, characterized in that: It includes a first base, a second base, a front vertical beam, a cross beam, a vertical beam and a lever arm; The first base is provided with a column, the column is connected to the front vertical beam, the upper side of the front vertical beam is connected to an angle connector, the angle connector is connected to the cross beam through a thread, the second base is connected to one end of a lever arm, the lever arm is connected to an electric push rod, and the other end of the lever arm is hinged to a conversion bracket; The horizontal beams and vertical beams are arranged through conversion brackets and corner connectors to carry photovoltaic panels.

2. A butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: The horizontal beams and vertical beams are arranged to form a bearing member, presenting a dragonfly backbone skeleton structure.

3. The butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: The electric push rod is connected to a control box, and a time relay is installed in the control box.

4. The butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: The lever arm comprises an upper lever arm and a lower lever arm, one end of the upper lever arm is movably connected to one end of the lower lever arm, the other end of the upper lever arm is hinged on the conversion bracket, and the other end of the lower lever arm is hinged on the second base.

5. The butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: The electric push rod is located in the middle of the entire force arm. Specifically, the electric push rod is movably connected to the upper force arm and the lower force arm.

6. The butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: It also includes a hinge, and the upright column is connected to the front vertical beam through the hinge.

7. A butterfly-type amplification tracking photovoltaic bracket according to claim 6, characterized in that: Two first bases are arranged side by side in front and back, and columns are installed on the two first bases. The two columns are connected by a connecting plate.

8. The butterfly-type amplification tracking photovoltaic bracket according to claim 6, characterized in that: It also includes a support rod, one end of which is welded to the connecting plate, and the other end of which is welded to the support member.

9. The butterfly-type amplification tracking photovoltaic bracket according to claim 1, characterized in that: The first base and the second base are connected to a block made of concrete by screws.

10. A butterfly-type amplified tracking photovoltaic system, characterized in that: A plurality of butterfly-type amplification tracking photovoltaic brackets as described in any one of claims 1 to 8 are provided, and a solar photovoltaic panel is fixed on a bearing member composed of a horizontal beam and a vertical beam.

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