CN209767464U - Photovoltaic tracking device and photovoltaic tracking system - Google Patents

Abstract

The utility model relates to a photovoltaic tracker technical field provides a photovoltaic tracer and photovoltaic tracking system, include: the upright post is fixed on the ground; the bearing block is arranged on the upright post, and a bearing is nested in the bearing block; the main beam penetrates through the bearing, and a plurality of photovoltaic cell assemblies are arranged on the main beam along the extending direction of the main beam; an adjustment assembly for synchronously adjusting the angles of the plurality of photovoltaic cell assemblies, the adjustment assembly comprising: follow a plurality of reduction gears that girder extending direction interval set up, connect every the transfer line of reduction gear, with every the transmission assembly that the output of reduction gear is connected, photovoltaic cell subassembly is connected transmission assembly through the drive the reduction gear and/or the transfer line rotates, drives a plurality of reduction gears are with angular rotation, and then drive a plurality of photovoltaic cell subassemblies are with angular rotation. The device is simple and convenient to install, can be quickly adjusted by a single person, saves manpower and saves cost.

Description

Photovoltaic tracking device and photovoltaic tracking system

technical field

The utility model relates to the technical field of photovoltaic trackers, in particular to providing a photovoltaic tracking device and a photovoltaic tracking system.

Background technique

A photovoltaic panel is a power generation device that can generate direct current under sunlight. It consists of thin, fixed photovoltaic cells made of semiconductor materials (such as silicon), and is usually used in conjunction with a battery. When photovoltaic panels are in use, they mainly use the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Photovoltaic panels are mainly used in remote areas without power grids and areas with scattered populations. In areas with public power grids, photovoltaic panels can be connected to the grid for grid-connected operation. Photovoltaic panels have higher power generation efficiency and better environmental protection performance.

During the manufacturing process of the photovoltaic panel, in order to collect more sunlight, the surface area of the photovoltaic panel is usually set to be larger, which makes the photovoltaic panel relatively bulky. During the use of the photovoltaic panel, in order to maximize the collection of sunlight, the surface of the photovoltaic panel is usually aligned with the side where the sunlight can be irradiated for a long time. The angle of sunlight irradiation is different in different seasons of the year. Therefore, during the use of photovoltaic panels, it is necessary to adjust the angular position of photovoltaic panels at intervals. Because the photovoltaic panels are relatively heavy, the brackets used to support the photovoltaic panels are usually detachable brackets. When the angle position of the photovoltaic panels needs to be adjusted, it is necessary to use tools to operate the brackets of the photovoltaic panels, so that the angle adjustment operation of the photovoltaic panels is very difficult. Complicated and time-consuming. At the same time, the common structures of seasonally adjustable photovoltaic brackets on the market are: single-arc type seasonally adjustable photovoltaic brackets, jack-type seasonally adjustable photovoltaic brackets, slow construction and installation progress, difficult adjustment, and poor stability.

Contents of the invention

In order to solve the above technical problems, the main purpose of this utility model is to provide a photovoltaic tracking device and a photovoltaic tracking system. The installation of the device is simple and convenient, and a single person can quickly adjust it, saving manpower and cost.

In order to achieve the above purpose, the technical solution of the utility model is to provide a photovoltaic tracking device, including:

uprights, fixed to the ground;

The bearing seat is arranged on the column, and a bearing is nested inside the bearing seat;

The main beam is installed in the bearing, and a plurality of photovoltaic cell components are installed on the main beam along its extending direction;

An adjustment assembly is used to synchronously adjust the angles of the plurality of photovoltaic cell assemblies, and the adjustment assembly includes: a plurality of speed reducers arranged at intervals along the extending direction of the main beam, a transmission rod connecting each of the speed reducers, and The transmission assembly connected to the output end of each of the reducers, the photovoltaic cell assembly is connected to the transmission assembly, and drives the multiple reducers to rotate at the same angle by driving the reducer and/or the transmission rod to rotate , and then drive the plurality of photovoltaic cell assemblies to rotate at the same angle.

Preferably in this embodiment, the reducer is a two-stage worm reducer, the output end of the two-stage worm reducer has a first output shaft and a second output shaft, and the two ends of the transmission rod are respectively connected to The first output shaft of one of the two-stage worm gear reducers and the input shaft of another adjacent two-stage worm gear reducer, the transmission assembly is connected to each of the two-stage worm gear reducers Second output shaft.

In this embodiment, preferably, the first output shaft and the second output shaft are parallel or perpendicular to each other, and the transmission rod connected to the first output shaft and the transmission assembly connected to the second output shaft are parallel or perpendicular to each other.

In this embodiment, preferably, the transmission assembly includes a chainring assembly wrapped on the main beam and a dial assembly meshed with the chainring assembly, and the dial assembly is connected to the secondary worm gear The second output shaft of the reducer is connected.

In this embodiment, preferably, the toothed plate assembly includes a toothed plate arranged in a fan shape and a tooth portion provided on the toothed plate, and the tooth portion is arranged on an arc-shaped outer edge of the toothed plate, or, The tooth disc is provided with an arc-shaped through-slot, and the teeth are arranged on the upper inner wall of the through-slot.

In this embodiment, preferably, the main girder is single, or a plurality of the main girders are arranged parallel to each other and side by side.

Another technical solution of the application of the utility model is to provide a photovoltaic tracking system, including a plurality of photovoltaic tracking devices according to any one of the above-mentioned embodiments, and the plurality of photovoltaic tracking devices are connected in sequence.

In this embodiment, preferably, a plurality of said photovoltaic tracking devices are arranged in a single row.

In this embodiment, preferably, the plurality of photovoltaic tracking devices are arranged at a preset angle, and the transmission rods at the intersection of the plurality of photovoltaic tracking devices are connected through universal joints.

In this embodiment, preferably, a plurality of the photovoltaic tracking devices are arranged side by side, and the transmission rod between two adjacent rows of the photovoltaic tracking devices is perpendicular to the main beam.

Preferably in this embodiment, it also includes a geared motor and an electric control box, the geared motor is located at one end of the photovoltaic tracking system and is used to drive the reducer to rotate, the electric control box is connected to the geared motor, the The electric control box controls the geared motor to drive the photovoltaic tracking system day by day.

The utility model provides a photovoltaic tracking device and a photovoltaic tracking system, which can bring at least one of the following beneficial effects:

1. In the utility model, the photovoltaic tracking device is simple and convenient to install, and can be quickly adjusted by a single person, saving manpower and cost.

2. In this utility model, by implementing multi-point drive for the photovoltaic tracking system, the maximum load-bearing value of the main girder can be greatly reduced, thereby reducing the wall thickness of the main girder and saving the material cost of the main girder.

3. In the utility model, the wind resistance capacity of the system as a whole is improved through multi-point driving, and more factors that are prone to vibration are eliminated while eliminating a large load area, thereby improving product stability.

4. In this utility model, the photovoltaic tracking system can break through the existing length due to the length of the main shaft, and the number of components that can be installed is large. For the high voltage string system that pursues low cost, such as 1500V system voltage, it can perfectly match the appropriate group The number of strings, even for the DC-AC inverter channel at the back end, can make full use of the multi-channel of the inverter, so as not to cause the loss of the grid-connected channel of the inverter. For the photovoltaic industry has been committed to improving the string system voltage, because the length of the photovoltaic tracking system can be adjusted, it is also extremely flexible.

Description of drawings

FIG. 1 is a schematic structural diagram of a photovoltaic tracking device in the first embodiment.

Fig. 2 is a structural schematic diagram of another viewing angle of the photovoltaic tracking device in the first embodiment.

Fig. 3 is a schematic structural diagram of the regulating assembly in the first embodiment.

Fig. 4 is a schematic structural diagram of the photovoltaic tracking system in the fourth embodiment.

Fig. 5 is a schematic structural diagram of the regulating assembly in the second embodiment.

Explanation of reference numbers:

1. Support column, 2. Drive column, 3. Bearing seat, 4. Connecting plate, 5. Bearing, 6. Main beam, 7. Main beam connector, 8. Purlin component, 9. Photovoltaic cell component, 10. Teeth Disc assembly, 11. dial assembly, 12. reducer, 13. reduction motor, 14. transmission rod, 15. first universal joint, 16. control box, 17. second universal joint, 18. transmission assembly, 19. Arc slot, 20. Tooth.

Detailed ways

Although the present invention may be readily manifested in different forms of embodiments, only some of them are shown in the drawings and described in detail in this specification, and it should be understood that this specification should be considered as This is an exemplary illustration of the principles of the utility model, and is not intended to limit the utility model to what is described here.

Therefore, a feature indicated in this specification will be used to describe one of the features of an embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless otherwise stated.

In the embodiments shown in the drawings, directional indications (such as up, down, left, right, front and back) are used to explain that the structures and movements of various components of the present invention are not absolute but relative. These descriptions are applicable when the components are in the positions shown in the drawings. If the description of the location of these components is changed, the indications of these directions are changed accordingly.

Below in conjunction with the accompanying drawings of this specification, the preferred embodiments of the utility model are further elaborated.

In Embodiment 1, as shown in FIG. 1 and FIG. 2 , this embodiment provides a photovoltaic tracking device, including: a column, a bearing seat 3 , a main beam 6 and an adjustment assembly. Wherein, the upright column is channel steel or steel pipe, and the upright column is fixed on the bottom surface through piling, and a plurality of upright columns are arranged at intervals along the extending direction of the main beam 6 . The bearing seat 3 is fixed on the column, and a bearing 5 is nested inside the bearing seat 3 . Preferably, a connecting plate 4 is provided at the top of the column, and the connecting plate 4 is screwed or welded to the top of the column, and the bearing seat 3 is fixed on the connecting plate 4 via screws. Preferably, the bearing 5 is a plastic bearing. The main beam 6 is passed through the bearing 5 , and a plurality of photovoltaic cell assemblies 9 are installed on the main beam 6 along its extending direction. Preferably, there are multiple purlin assemblies 8 on the main beam 6 , and multiple photovoltaic cell assemblies 9 are fixed on the main beam 6 through the purlin assemblies 8 .

The adjusting component is used for synchronously adjusting the angles of multiple photovoltaic cell components 9 . Specifically, the adjustment assembly includes: a plurality of speed reducers 12 arranged at intervals along the extension direction of the main beam 6, a transmission rod 14 connected to each speed reducer 12, a transmission assembly 18 connected to the output end of each speed reducer 12, a photovoltaic cell The component 9 is connected to the transmission component 18, and by driving the reducer 12 and/or the transmission rod 14 to rotate, it drives the multiple reducers 12 to rotate at the same angle, and then drives the multiple photovoltaic cell components 9 to rotate at the same angle. Preferably, the reducer 12 is a two-stage worm reducer, the output end of the two-stage worm reducer has a first output shaft and a second output shaft, and the two ends of the transmission rod 14 are respectively connected to one of the two-stage worm reducers The first output shaft of the second-stage worm reducer and the adjacent input shaft of another two-stage worm reducer, the transmission assembly 18 is connected to the second output shaft of each two-stage worm reducer.

In the second embodiment, as shown in FIG. 1 , FIG. 2 and FIG. 3 , on the basis of the first embodiment, the main girder 6 is a single main girder. The transmission assembly 18 includes a chainring assembly 10 wrapped on the main beam 6 and a dial assembly 11 engaged with the chainring assembly 10 for transmission. The dial assembly 11 is connected to the second output shaft of the secondary worm gear reducer. The uprights include a plurality of supporting uprights 1 and driving uprights 2 . The supporting uprights 1 and driving uprights 2 are placed at intervals along the extension direction of the main beam 6 . The dial assembly 11 and the reducer 12 are mounted on the driving uprights 2 . Wherein, the toothed plate assembly 10 is a fan-shaped toothed plate assembly, and the upper end of the toothed plate assembly 10 is fixed on the lower side of the main beam 6. The tooth portion is adapted to connect with the dial assembly 11 .

As shown in Figure 5, as another modification of this embodiment, the toothed disc assembly 10 is provided with an arc-shaped through groove 19, and the tooth portion 20 of the toothed plate assembly 10 is arranged on the upper inner wall of the arc-shaped through slot 19, and the dial The wheel assembly 11 protrudes into the arc-shaped slot 19 and is used to engage and rotate with the tooth portion 20 .

The middle part of the driving column 2 is welded with a fixed seat, the dial assembly 11 is fixed on the left side of the fixed seat through screws, and the reducer 12 is fixed on the right side of the fixed seat through screws, and the second output shaft of the reducer 12 is connected with the dial assembly 11 connect. Preferably, one end of the transmission rod 14 is connected to the first output shaft of the reducer 12 through the first universal joint 15 , and the other end of the transmission rod 14 is connected to the input shaft of another adjacent reducer. The reduction motor 13 is connected to the input shaft of the speed reducer 12. In this embodiment, the first output shaft and the second output shaft are parallel to each other, and the transmission rod connected to the first output shaft and the transmission assembly 18 connected to the second output shaft are parallel to each other. . When the reduction motor 13 drives the input shaft to rotate, it drives the first output shaft and the second output shaft to rotate simultaneously. Since the transmission rod 14 is connected to the input shaft of the next reduction motor 13, the power is transmitted to the next speed reducer, and then drives each The second output shaft of the reducer rotates synchronously at the same angle to realize multi-point drive on the main beam 6, which can greatly reduce the maximum load-bearing value of the main beam 6, thereby reducing the wall thickness of the main beam 6 and saving the main beam 6 material cost.

As another modification of this embodiment, multiple main beams 6 are arranged parallel to each other, and the top of a single row of columns is provided with the above-mentioned multiple main beams 6 arranged side by side. Specifically, the top of each column is provided with an extension The direction is perpendicular to the connecting plate 4 of the main beam 6, and the connecting plate 4 is provided with a plurality of bearing seats 3 corresponding to the plurality of main beams 6, and each bearing seat 3 is provided with a bearing 5, and each main beam 6 is pierced in the corresponding bearing 5. Each row of main girders 6 is provided with a single row of photovoltaic cell assemblies 9, or multiple rows of main girders 6 are provided with a single row of photovoltaic cell assemblies 9, and the installation structure of the photovoltaic cell assemblies 9 is the same as that of the previous embodiment. Each row of main girders 6 is provided with a set of adjustment assemblies, in this case, the first output shaft and the second output shaft are perpendicular to each other, and the transmission rod 14 connected to the first output shaft and the transmission assembly 18 connected to the second output shaft are perpendicular to each other , so that the transmission rod 14 transmits power to another main beam 6 arranged side by side, so as to realize synchronous linkage of multiple main beams 6 arranged side by side.

Geared motor 13 is installed on the drive column 2 that is positioned at one end, and control box 16 is installed on the drive column 2, and control box 16 is positioned at the top of geared motor 13. The control box 16 is connected with the geared motor 13, and the electric control box 16 controls the geared motor 13 to drive the photovoltaic tracking system day by day.

In the third embodiment, as shown in Figure 1, on the basis of the first and second embodiments, this embodiment provides a photovoltaic tracking system, including a plurality of photovoltaic tracking devices as described in the above embodiment, a plurality of photovoltaic tracking devices Tracking devices are connected in turn. A plurality of photovoltaic tracking devices are arranged in a single row, a plurality of main girders 6 are connected through a main girder connector 7 , and a plurality of transmission rods 14 are connected through a second universal joint 17 .

During the tracking work of the photovoltaic tracker throughout the day, the main beam 6 bears the role of supporting the photovoltaic cell assembly 9 and transmitting the rotational torque. However, since the photovoltaic tracker is generally long, during the process of the main beam 6 transmitting the torsion force, the reverse torque will also be superimposed section by section along the main beam 6 in a reverse manner toward the center of the photovoltaic tracker. In order to avoid damage to the main girder 6 caused by the reverse torque superimposed section by section toward the middle, usually the main beam of the photovoltaic tracker cannot be made too long. In order to extend the length of the main beam, the existing method is usually to thicken the main beam, but the cost increase caused by thickening the main beam is very obvious. Usually, due to the increase in the weight of the main beam, it will also raise the cost of other structural parts of the photovoltaic tracker. Higher design requirements. The length of a single axis in the structural scheme of a flat single-axis photovoltaic tracking system has certain restrictions, generally about 15 meters to 40 meters. As a result, the torque of the main shaft at the middle driving point is too large, and the areas near the ends on both sides of the long axis are less constrained by the driving structure. In use, the structures at both ends of the long axis will vibrate under the action of wind load.

In this embodiment, by arranging a plurality of photovoltaic tracking devices in a single row, a plurality of adjustment components synchronously drive the photovoltaic cell assembly 9 to rotate through the transmission rod 14, and the length of the main beam 6 carried by each photovoltaic tracking device is within 10 meters. to 40 meters. Through such a multi-point arrangement, the length of the main axis of the photovoltaic tracking system can be made infinitely long, so that more project needs can be met. The main axis refers to the long axis formed by connecting multiple main beams 6 . The photovoltaic tracking system is equipped with a geared motor 13, a control box 16, and multiple adjustment components. A two-stage worm gear reducer is arranged at multiple adjustment components. When the photovoltaic tracking system is in the strong wind protection state, all the secondary worm gear reducers become the system fixed points of the photovoltaic tracking system, which will completely solve the instability of the strong wind protection state of the photovoltaic tracking system. By implementing multi-point drive for the photovoltaic tracking system, the maximum load-bearing value of the main girder 6 can be greatly reduced, thereby reducing the wall thickness of the main girder 6 and saving the material cost of the main girder 6 .

In Embodiment 4, as shown in Figure 4, on the basis of Embodiments 1 and 2, a plurality of photovoltaic tracking devices are set at preset angles, and a plurality of transmission rods 14 are connected through the second universal joint 17, and through photovoltaic tracking The geared motor 13 on one side of the system is driven to realize the photovoltaic tracking system day by day. In this embodiment, the photovoltaic tracking system overcomes the limitation of the terrain, realizes the synchronous operation of the photovoltaic tracking system on sloped terrain, and improves the application range of the photovoltaic tracking system.

In Embodiment 5, as shown in Figure 1, on the basis of Embodiments 1 and 2, a plurality of photovoltaic tracking devices are arranged side by side, where a plurality of photovoltaic tracking devices are arranged side by side means that a plurality of photovoltaic tracking devices extend along the main axis A plurality of directions are arranged in parallel to the vertical direction. In this embodiment, the first output shaft and the second output shaft are arranged perpendicular to each other, the transmission rod connected to the first output shaft and the transmission assembly 18 connected to the second output shaft are arranged perpendicular to each other, and the transmission rod is connected to the input of the next reducer In this way, multiple photovoltaic tracking devices arranged side by side driven by geared motors can be synchronized and rotate at the same angle. A plurality of main beams 6 are connected along a straight line to form a main shaft, and a plurality of main shafts are arranged in parallel in a direction perpendicular to the axial direction of the main shaft to form a parallel supporting structure of multiple main shafts, providing a mounting support surface for the photovoltaic cell module 9 . At the same time, the main shaft length of this photovoltaic tracking system can break through the existing length, and the number of components that can be installed is large. For the high-voltage string system that pursues low cost, such as 1500V system voltage, it can perfectly match the appropriate number of strings, even if For the DC-AC inverter channel at the back end, the multi-channel of the inverter can also be fully utilized, so as not to cause the loss of the grid-connected channel of the inverter. For the string system voltage that the photovoltaic industry has been committed to increasing, this embodiment is also very flexible due to the adjustable length of the tracking system.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (11)

1. A photovoltaic tracking device, comprising:

The upright post is fixed on the ground;

The bearing block is arranged on the upright post, and a bearing is nested in the bearing block;

The main beam penetrates through the bearing, and a plurality of photovoltaic cell assemblies are arranged on the main beam along the extending direction of the main beam;

An adjustment assembly for synchronously adjusting the angles of the plurality of photovoltaic cell assemblies, the adjustment assembly comprising: follow a plurality of reduction gears that girder extending direction interval set up, connect every the transfer line of reduction gear, with every the transmission assembly that the output of reduction gear is connected, photovoltaic cell subassembly is connected transmission assembly through the drive the reduction gear and/or the transfer line rotates, drives a plurality of reduction gears are with angular rotation, and then drive a plurality of photovoltaic cell subassemblies are with angular rotation.

2. The photovoltaic tracking device of claim 1, wherein:

The speed reducer is a two-stage worm gear and worm speed reducer, the output end of the two-stage worm gear and worm speed reducer is provided with a first output shaft and a second output shaft, two ends of the transmission rod are respectively connected with the first output shaft of one two-stage worm gear and worm speed reducer and the input shaft of the other two-stage worm gear adjacent to the first output shaft, and the transmission assembly is connected with the second output shaft of each two-stage worm gear and worm speed reducer.

3. The photovoltaic tracking device of claim 2, wherein:

The first output shaft and the second output shaft are parallel or vertical to each other, and the transmission rod connected with the first output shaft and the transmission assembly connected with the second output shaft are parallel or vertical to each other.

4. The photovoltaic tracking device of claim 2, wherein:

The transmission assembly comprises a gear disc assembly wrapped on the main beam and a shifting wheel assembly in meshing transmission with the gear disc assembly, and the shifting wheel assembly is connected with a second output shaft of the secondary worm gear reducer.

5. Photovoltaic tracking device according to claim 4, characterized in that:

the fluted disc assembly comprises a fluted disc and a tooth part, wherein the fluted disc is arranged in a fan shape, the tooth part is arranged on the arc-shaped outer edge of the fluted disc;

Or, an arc-shaped through groove is formed in the fluted disc, and the tooth part is arranged on the inner wall of the upper side of the through groove.

6. The photovoltaic tracking device of claim 1, wherein:

The girder is single, perhaps the girder is provided with many side by side in parallel each other.

7. A photovoltaic tracking system, characterized by:

Comprising a plurality of photovoltaic tracking devices according to any one of claims 1 to 6, connected in series.

8. the photovoltaic tracking system of claim 7, wherein:

a plurality of photovoltaic tracer be a word single row setting.

9. the photovoltaic tracking system of claim 7, wherein:

It is a plurality of photovoltaic tracer be and predetermine the angle setting, it is a plurality of photovoltaic tracer the transfer line at junction pass through the universal joint and connect.

10. The photovoltaic tracking system of claim 7, wherein:

The photovoltaic tracking devices are arranged side by side, and the transmission rod between the photovoltaic tracking devices in two adjacent rows is perpendicular to the main beam.

11. A photovoltaic tracking system as claimed in any one of claims 7 to 10, wherein:

The photovoltaic tracking system is characterized by further comprising a speed reducing motor and an electric cabinet, wherein the speed reducing motor is located at one end of the photovoltaic tracking system and used for driving the speed reducer to rotate, the electric cabinet is connected with the speed reducing motor, and the electric cabinet controls the speed reducing motor to drive the photovoltaic tracking system day by day.