CN106992748B - Automatic corner photovoltaic system and automatic corner photovoltaic array - Google Patents

Abstract

The invention provides an automatic corner photovoltaic system and an automatic corner photovoltaic square array. The automatic corner photovoltaic system includes several photovoltaic components arranged in parallel, a support mechanism and an angle adjustment mechanism, and the automatic corner photovoltaic square array includes a photovoltaic square array and a corner drive mechanism. ; The photovoltaic square array is formed by a plurality of photovoltaic arrays. The photovoltaic module of the present invention can adjust and control the angle according to the movement of the sun or the weather changes, improve the working efficiency of the photovoltaic module, or adjust the angle of the photovoltaic module in bad weather, provide the bearing capacity for extra-heavy wind and snow, reduce natural Disaster damage overcomes the terrain limitation of photovoltaic modules during fixed installation and increases the long-term stability and reliability of photovoltaic systems.

Description

Automatic corner photovoltaic system and automatic corner photovoltaic array

technical field

The invention relates to a photovoltaic system, in particular to an automatic corner photovoltaic system and an automatic corner photovoltaic square array.

Background technique

At present, fixed facilities are commonly used for fixed photovoltaic modules at home and abroad, that is, the installation method of metal brackets. A metal frame with a triangular structure is made under each group of photovoltaic modules. The slope and angle of the metal frame are kept facing the direction of sunlight. Bolts fix the photovoltaic modules on the inclined surface of the metal frame, and then fix the metal frame to the ground. This method is simple, practical, and easy to design and install. It is the most common installation method at present. However, this method is greatly affected by geographical and environmental factors in use. The entire power station caused huge damage; in addition, the metal skeleton was fixed in a certain position, which could not rotate with the change of the sun's height, and the utilization rate of solar energy was low.

At the same time, the manufacturing cost and installation and maintenance cost of photovoltaic power generation are too high. After the manufacturing of photovoltaic power generation equipment is completed, the manufacturing cost is converted into fixed cost. The installation and maintenance cost mainly depends on the installation equipment, construction method, power generation ratio and land. cost of resources, etc. With the existing installation method, the sunlight cannot be kept directly on the photovoltaic module, resulting in the loss of the solar energy, thereby reducing the power of the electrical energy converted from the solar energy and increasing the corresponding cost.

Therefore, in order to promote the application of solar energy in a wider range, it is necessary to develop a photovoltaic system that has low terrain requirements and can automatically turn the angle following the rotation of the sun, so as to improve the utilization rate of solar energy and save costs.

SUMMARY OF THE INVENTION

One of the objectives of the present invention is to provide an automatic corner photovoltaic system to solve the problems of high terrain requirements, low solar energy utilization rate and high cost of the existing photovoltaic system.

The second purpose of the present invention is to provide an automatic corner photovoltaic array, so as to use the automatic corner photovoltaic system to form a photovoltaic array, further improve the utilization rate of solar energy by the photovoltaic array, and reduce the installation cost.

One of the objects of the present invention is achieved in this way:

An automatic corner photovoltaic system, comprising:

Several photovoltaic modules arranged in parallel, each photovoltaic module is respectively connected to four connecting cables through corresponding four positions; four connecting rod frames are connected to the positions corresponding to the ends of the four connecting cables, and the four connecting rods The frame includes two horizontal support rods and two vertical synchronization rods; a slewing cable is connected between two ends of each support rod;

a support mechanism, including opposite brackets, each bracket is provided with an upper driven wheel and a lower driven wheel for the slewing cable to pass through; and

The angle adjustment mechanism includes a power drive mechanism and a pull rod driven by the power drive mechanism, and the end of the pull rod is connected to the synchronization rod.

The corresponding four positions of the photovoltaic assembly are respectively connected to the connecting cable via a movable lock, and the movable lock includes an upper connecting piece, a lower connecting piece and a connecting shaft.

A floor-standing support roller is arranged below the connecting cable.

The second purpose of the present invention is achieved in this way:

An automatic corner photovoltaic square array, comprising a photovoltaic square array and a corner driving mechanism; the photovoltaic square array is formed by arranging a plurality of photovoltaic arrays; the photovoltaic array includes a support mechanism and a plurality of photovoltaic components supported by the support mechanism; The corresponding four positions of the assembly are respectively connected to the four connecting cables; the positions corresponding to the ends of the four connecting cables are connected with a four-link frame, and the four-link frame includes two horizontal support rods and a vertical The two synchronizing rods are connected to each other; a slewing cable is connected between the two ends of each support rod; the supporting mechanism includes opposite brackets, and each bracket is provided with an upper driven wheel and a lower driven wheel for the slewing cable to pass through; The corner drive mechanism includes a power drive mechanism and a traction cable connected to the output end of the power drive mechanism; a horizontal cable is tied to the synchronization rod of the photovoltaic row, and the other end of the horizontal cable bypasses the steering A pulley is connected to the traction cable.

The corresponding four positions of the photovoltaic assembly are respectively connected to the connecting cable via a movable lock, and the movable lock includes an upper connecting piece, a lower connecting piece and a connecting shaft.

A floor-standing support roller is arranged below the connecting cable.

The corner driving mechanism is provided with two sets, which are respectively located on both sides of the photovoltaic column, and each rotates the photovoltaic components in opposite directions.

The present invention adopts this structure, so that each photovoltaic module in the photovoltaic system can adjust and control the angle synchronously, so that the inclination angle can be changed according to the movement of the sun or the change of the weather, so that the photovoltaic module is always kept perpendicular to the sunlight, and the working efficiency of the photovoltaic module is improved. . In bad weather, the angle of photovoltaic modules can be adjusted to improve the bearing capacity of heavy wind and snow, reduce the damage of natural disasters, and extend the working life of photovoltaic modules. This overcomes the terrain limitations of photovoltaic modules in the fixed installation process, increases the long-term stability and reliability of photovoltaic systems used in different regions, especially in mountainous areas or northwest desert regions, and reduces the installation costs and maintenance of photovoltaic systems and photovoltaic arrays. cost.

In the automatic corner photovoltaic system and the automatic corner photovoltaic square array of the present invention, the photovoltaic modules can be automatically swung according to the control system to receive more sunlight and increase the power generation by 30%; multiple connecting cables are connected in parallel, with strong bearing capacity and quick installation. , saving construction time; automatic corner photovoltaic array has the advantages of more convenient adjustment and lower cost.

Description of drawings

FIG. 1 is a schematic structural diagram of an automatic corner photovoltaic system of the present invention.

Figure 2 is a schematic diagram of the structure of the connecting cable.

Figure 3 is a schematic structural diagram of a movable lock.

FIG. 4 is a schematic structural diagram of an automatic corner photovoltaic square array of the present invention.

Detailed ways

As shown in FIG. 1 , the automatic corner photovoltaic system includes several photovoltaic modules 18 arranged in parallel, a support mechanism and an angle adjustment mechanism. Each photovoltaic module 18 includes a rectangular battery plate and a positioning block. The positioning block is installed on the battery plate and used to connect with the connecting cable 17 in the rotating support mechanism to fix the battery plate on the connecting cable 17 . The four photovoltaic modules 18 shown in FIG. 1 are evenly distributed on the connecting cable 17, and the distances between the four photovoltaic modules 18 may also be different.

The four corners of each photovoltaic module 18 are respectively connected to four connecting cables 17 ; four link frames are connected to the positions corresponding to the two ends of the four connecting cables. The four-link frame is composed of two horizontal support rods 16 and two vertical synchronization rods. A slewing cable 15 is connected between the two ends of each support rod. The slewing cable 15 and the connecting cable 17 form a closed loop.

The support mechanism includes opposite brackets 11 , and each bracket 11 is provided with an upper driven wheel 14 and a lower driven wheel 10 for the slewing cable 15 to pass through.

The angle adjustment mechanism includes a power drive mechanism 13 and a pull rod 12 driven by the power drive mechanism. The end of the pull rod 12 is connected to a synchronization rod, which is an active synchronization rod 20. It is the passive synchro lever 21 . The power drive mechanism 13 can be a known power mechanism in the prior art, such as a hydraulic cylinder. When the power drive mechanism 13 pulls the active synchronizing rod 20 through the pull rod 12 to move, the connecting cable connected with the active synchronizing rod 20 starts to move in the same direction, and the other connecting cable connected with the passive synchronizing rod 21 moves in the opposite direction, so that the The inclination of all PV modules changes synchronously.

In the present invention, the connecting cable can have its own tensioning structure to adjust the tensioning force. The self-contained tensioning structure can adopt the tensioning structure known in the prior art, or the structure shown in FIG. 2: a spiral tensioning device is provided at both ends of the connecting cable 17, which includes a hollow screw 172 and a movable The nut 173 and the hollow screw 172 are used to adjust the tension of the connecting cable 17 , and the movable nut 173 is fixed on the support frame 16 . A spring washer 175 is provided between the hollow screw 172 and the positioning aluminum tube 171 at the end to absorb friction.

As shown in FIG. 1 , the opposite sides or four corners of each photovoltaic module 18 are respectively connected to the connecting cables 17 via movable locks 19 . The movable lock 19 may adopt a structure known in the prior art, and may also adopt the structure shown in FIG. Positioning aluminum tubes are evenly distributed on each connecting cable 17 , and connecting rods 110 perpendicular to the two sides are arranged between opposite sides of each photovoltaic module 18 . The upper connecting piece 191 of the movable lock 19 is connected with the positioning aluminum tube 171, the lower connecting piece 192 is connected with the connecting rod 110, and a connecting shaft 193 is arranged between the upper connecting piece 191 and the lower connecting piece 192, so as to facilitate the movable locking The rotation of 19 and the rotation between the movable lock 19 and the connecting piece.

As shown in FIG. 4 , the automatic corner photovoltaic array 1 includes a photovoltaic array and a corner driving mechanism. The photovoltaic array is formed by arranging several photovoltaic columns. The basic structure of the photovoltaic array is similar to the structure of the aforementioned automatic corner photovoltaic system, except that each photovoltaic array is not provided with a separate driving mechanism, but a corner driving mechanism is provided for the entire photovoltaic array. The photovoltaic column includes a support mechanism and several photovoltaic modules supported by the support mechanism. The corresponding four positions of each photovoltaic module are respectively connected to four connecting cables. The positions corresponding to the ends of the four connecting cables are connected with a four-link frame, and the four-link frame includes two horizontal support rods and two vertical synchronization rods. A slewing cable is connected between the two ends of each support rod; the support mechanism includes opposite brackets, and each bracket is provided with an upper driven wheel and a lower driven wheel for the slewing cable to pass through. The corner drive mechanism includes two sets of power drive mechanisms, namely the power drive mechanism 9 located on the left side, the traction cable 2 connected to the output end of the power drive mechanism, and the power drive mechanism 8 located on the right side, connected to the output end of the power drive mechanism tow rope 7. A horizontal cable 5 is tied to the synchronizing rod on the left side of each photovoltaic row, and the other end of the horizontal cable 5 bypasses the steering pulley 4 and connects with the traction cable 2 . The horizontal cable 3 connected to the synchronization rod on the right side is connected to the traction cable 7 located on the right side.

FIG. 4 only shows three parallel-arranged automatic corner photovoltaic systems. Each automatic corner photovoltaic system is provided with four photovoltaic modules 18 evenly distributed on the rotating support mechanism. According to the connection cables in the automatic corner photovoltaic system The size of 17 is provided with multiple photovoltaic modules 18, and multiple automatic corner photovoltaic systems are set according to the size of the site. Each automatic corner photovoltaic system can be extended to carry multiple photovoltaic modules 18. Due to the relationship between weight and span, the connecting cable 17 may not be enough to support the photovoltaic modules. Multiple support rollers 6 can be added at appropriate positions according to the actual situation, so as not to hinder the The connecting cable 17 is supported in the event of movement of the connecting cable 17 . At the same time, the existing support rollers with various structural forms can be selected according to factors such as terrain and bearing capacity, thereby reducing the damage to the roof of the house where the installation is installed, and at the same time completely removing the ground anchor and tension cable structure.

In the present invention, an achievable automatic corner photovoltaic square array can be: the power of the photovoltaic square array is 0.3125MW, TSM-250 (PC05A) photovoltaic modules (0.992×1.625) are used, and each photovoltaic module has a self-weight of 13 kilograms. The photovoltaic square array is set in a site with a length of 50 meters and a width of 100 meters. The spacing between photovoltaic modules is 2 meters, and each group of photovoltaic modules includes 25 pieces; the spacing between each automatic corner photovoltaic system is 2 meters. , the average unit width is 2 meters (every two groups are juxtaposed with an interval of 50mm), and a total of 50 groups of units are installed, that is, the photovoltaic square requires 1250 photovoltaic modules, and the photovoltaic modules in each photovoltaic system weigh 325 kg.

Claims (7)

1. an automatic corner photovoltaic system, is characterized in that, comprises: Several photovoltaic modules arranged in parallel, each photovoltaic module is respectively connected to four connecting cables through corresponding four positions; four connecting rod frames are connected to the positions corresponding to the ends of the four connecting cables, and the four connecting rods The frame includes two horizontal support rods and two vertical synchronization rods; a slewing cable is connected between two ends of each support rod; a support mechanism, including opposite brackets, each bracket is provided with an upper driven wheel and a lower driven wheel for the slewing cable to pass through; and The angle adjustment mechanism includes a power drive mechanism and a pull rod driven by the power drive mechanism, and the end of the pull rod is connected to the synchronization rod. 2 . The automatic corner photovoltaic system according to claim 1 , wherein the corresponding four positions of the photovoltaic module are respectively connected to the connecting cable via movable locks, and the movable locks comprise upper connectors. 3 . , the lower connecting piece and the connecting shaft. 3 . The automatic corner photovoltaic system according to claim 1 , wherein a floor-standing support roller is arranged below the connecting cable. 4 . 4. An automatic corner photovoltaic square array, characterized in that it includes a photovoltaic square array and a corner driving mechanism; the photovoltaic square array is formed by arranging several photovoltaic arrays; the photovoltaic array includes a support mechanism and a support mechanism supported by the support mechanism. Several photovoltaic modules; the corresponding four positions of each photovoltaic module are respectively connected to four connecting cables; the positions corresponding to the ends of the four connecting cables are connected with a four-link frame, and the four-link frame includes a horizontal Two supporting rods and two vertical synchronizing rods; a slewing cable is connected between the two ends of each supporting rod; the supporting mechanism includes opposite brackets, and each bracket is provided with an upper driven wheel for the slewing cable to pass through and a lower driven wheel; the corner drive mechanism includes a power drive mechanism and a traction cable connected to the output end of the power drive mechanism; a horizontal cable is tied on the synchronization rod of the photovoltaic row, and the horizontal cable is The other end bypasses the diverting pulley and is connected to the traction cable. 5 . The automatic corner photovoltaic square array according to claim 4 , wherein the corresponding four positions of the photovoltaic modules are respectively connected to the connecting cables via movable locks, and the movable locks include upper connections. 6 . parts, lower connecting parts and connecting shafts. 6 . The automatic corner photovoltaic square array according to claim 4 , wherein a floor-standing support roller is arranged below the connecting cable. 7 . 7 . The automatic corner photovoltaic array according to claim 4 , wherein the corner driving mechanism is provided with two sets, which are respectively located on both sides of the photovoltaic column, and each rotates the photovoltaic components in opposite directions. 8 .