CN106992748A - Automatic corner photovoltaic system and automatic corner photovoltaic array - Google Patents

Abstract

The invention provides a kind of automatic corner photovoltaic system and automatic corner photovoltaic arrays, automatic corner photovoltaic system includes some photovoltaic modulies, supporting mechanism and the angle adjusting mechanism of parallel arrangement, and automatic corner photovoltaic arrays include photovoltaic arrays and corner drive mechanism；The photovoltaic arrays are formed by some photovoltaic row arrangements.The photovoltaic module of the present invention can follow sun's motion or Changes in weather to carry out angle adjustment and control, improve the operating efficiency of photovoltaic module, or in bad weather, adjust the angle of photovoltaic module, bearing capacity to especially big wind and snow etc. is provided, natural calamity destruction is reduced, landform limitation of the photovoltaic module during fixed installation is overcome, adds the long-time stability and reliability of photovoltaic system.

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, domestic and foreign fixed photovoltaic modules generally adopt fixed facilities, that is, metal bracket installation method, and a triangular metal skeleton is made under each group of photovoltaic modules. Bolts fix the photovoltaic module on the slope 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 currently the most common installation method. However, this method is greatly affected by geographical and environmental factors. The entire power station causes huge damage; in addition, the metal frame is fixed at a certain position and cannot rotate with the change of the sun's height, and the utilization rate of solar energy is low.

At the same time, the manufacturing cost and installation and maintenance cost of photovoltaic power generation are too high. After the manufacture of photovoltaic power generation equipment is completed, the manufacturing cost is converted into fixed cost. The installation and maintenance costs mainly depend on the installation equipment, construction method, power generation ratio and land. Resource occupation costs, etc. With the existing installation method, it is impossible to keep sunlight directly on the photovoltaic module, resulting in the loss of solar energy, resulting in a reduction in the power of the converted solar energy and a corresponding increase in 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 requirements on the terrain and can automatically rotate the angle following the rotation of the sun, so as to improve the utilization rate of solar energy and save costs.

Contents of the invention

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

The second object of the present invention is to provide an automatic corner photovoltaic array to form a photovoltaic array with an automatic corner photovoltaic system, further improve the utilization rate of solar energy of the photovoltaic array, and reduce installation costs.

One of purpose of the present invention is achieved like this:

An automatic corner photovoltaic system, comprising:

A number of photovoltaic modules arranged in parallel, each photovoltaic module is connected to four connecting cables through corresponding four positions; a four-link frame is connected to the points corresponding to the ends of the four connecting cables, and the four-link The frame includes two horizontal support rods and two vertical synchronous 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 around; 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 module are respectively connected to the connecting cable via a movable lock, and the movable lock includes an upper connector, a lower connector and a connecting shaft.

Below the connecting cable, a floor support roller is arranged.

Two of purpose of the present invention is achieved like this:

An automatic corner photovoltaic array, including a photovoltaic array and a corner drive mechanism; the photovoltaic array is formed by a number of photovoltaic columns; the photovoltaic array includes a support mechanism and a number of photovoltaic modules supported by the support mechanism; each photovoltaic The corresponding four positions of the assembly are respectively connected to four connecting cables; the points 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 There are two synchronous rods; the two ends of each support frame are connected with a revolving cable; the support mechanism includes opposite brackets, and each bracket is provided with an upper driven wheel and a lower driven wheel for the revolving 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 each photovoltaic row, and the other end of the horizontal cable The part bypasses the diverting pulley and connects with the traction rope.

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

Below the connecting cable, a floor support roller is arranged.

There are two sets of the corner driving mechanism, which are respectively located on both sides of the photovoltaic column, and each makes the photovoltaic module rotate in opposite directions.

The present invention adopts this structure, so that the angles of each photovoltaic module in the photovoltaic system are adjusted and controlled synchronously, so that the inclination angle can be changed following the movement of the sun or weather changes, so that the photovoltaic module is always perpendicular to the sun's rays, and the working efficiency of the photovoltaic module is improved. . In bad weather, adjust the angle of the photovoltaic module, thereby improving the bearing capacity of extreme wind and snow, reducing natural disaster damage, and prolonging the working life of the photovoltaic module. This overcomes the terrain limitations of photovoltaic modules during fixed installation, increases the long-term stability and reliability of photovoltaic systems in different regions, especially in mountainous areas or desert areas in northwest China, and reduces the installation cost and maintenance of photovoltaic systems and photovoltaic arrays cost.

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

Description of drawings

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

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

Fig. 3 is a schematic structural diagram of the movable lock.

Fig. 4 is a structural schematic diagram of the automatic corner photovoltaic array of the present invention.

detailed description

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 board and a positioning block. The positioning block is installed on the battery board to connect with the connecting cable 17 in the rotating support mechanism so as to fix the battery board on the connecting cable 17 . The four photovoltaic modules 18 shown in FIG. 1 are evenly distributed on the connecting cables 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; the corresponding positions of the two ends of the four connecting cables are connected with a four-link frame. The four-link frame is made up of two horizontal support bars 16 and two vertical synchronous bars. A revolving cable 15 is connected between the two ends of each support rod. The revolving cable 15 forms a closed loop with the connecting cable 17 .

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 around.

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 synchronous rod, which is an active synchronous rod 20, and another synchronous rod in the four-link frame It is a passive synchronization rod 21. The power drive mechanism 13 can adopt power mechanisms known in the prior art such as hydraulic cylinders. When the power drive mechanism 13 pulls the active synchronous rod 20 to move through the pull rod 12, the connecting cable connected with the active synchronous rod 20 starts to move synchronously and in the same direction, and the other connecting cable connected with the passive synchronous rod 21 moves in the opposite direction, so that The inclination angles of all photovoltaic modules change synchronously.

In the present invention, the connecting cable can have its own tensioning structure to adjust the tension. Self-contained tensioning structure can adopt known tensioning structure in the prior art, also can adopt the structure as shown in Figure 2: be provided with helical tensioning device at the two ends of connecting cable 17, it comprises hollow screw rod 172 and movable The nut 173 and the hollow screw rod 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 accommodate friction.

As shown in FIG. 1 , the opposite two sides or four corners of each photovoltaic module 18 are respectively connected to the connection cables 17 via movable locks 19 . The active lock 19 can adopt a structure known in the prior art, and can also adopt the structure shown in FIG. 3 : the active lock 19 includes an upper connecting piece 191 , a lower connecting piece 192 and a connecting shaft 193 . Positioning aluminum tubes are evenly distributed on each connecting cable 17 , and connecting rods 110 perpendicular to the two sides of each photovoltaic module 18 are arranged between opposite sides. The upper connector 191 of the movable lock 19 is connected with the positioning aluminum tube 171, the lower connector 192 is connected with the connecting rod 110, and a connecting shaft 193 is arranged between the upper connector 191 and the lower connector 192 to facilitate the movable lock 19 and the rotation between the active lock 19 and the connector.

As shown in FIG. 4 , the automatic corner photovoltaic array 1 includes a photovoltaic array and a corner driving mechanism. The photovoltaic square array is formed by arranging several photovoltaic columns. The basic structure of the photovoltaic array is similar to that of the aforementioned automatic corner photovoltaic system, except that instead of a separate drive mechanism for each photovoltaic array, a corner drive mechanism is provided for the entire photovoltaic array. The photovoltaic column includes a supporting mechanism and several photovoltaic modules supported by the supporting mechanism. Corresponding four positions of each photovoltaic module are respectively connected to four connecting cables. A four-link frame is connected to the positions corresponding to the ends of the four connecting cables, and the four-link frame includes two horizontal support bars and two vertical synchronous bars. A revolving cable is connected between the two ends of each supporting frame; the supporting mechanism includes opposite brackets, and each bracket is provided with an upper driven wheel and a lower driven wheel for the revolving cable to pass around. The corner drive mechanism includes two sets of power drive mechanisms, namely the power drive mechanism 9 on the left side, the traction rope 2 connected to the output end of the power drive mechanism, and the power drive mechanism 8 on the right side, which is connected to the output end of the power drive mechanism. The towing rope 7. A horizontal stay cable 5 is tied to the synchronous rod on the left side of each photovoltaic column, and the other end of the horizontal stay cable 5 bypasses the diverting pulley 4 and connects with the drag cable 2 . The horizontal stay cable 3 connected on the synchronous bar on the right side is connected with the drag cable 7 positioned on the right side.

Fig. 4 only shows three parallel-connected automatic corner photovoltaic systems, and each automatic corner photovoltaic system is provided with four photovoltaic modules 18 evenly distributed on the rotating support mechanism. The size of 17 sets multiple photovoltaic modules 18, and sets multiple automatic corner photovoltaic systems according to the size of the site. Each automatic corner photovoltaic system can be extended to carry multiple pieces of 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 supporting rollers 6 can be added at appropriate positions according to actual conditions, so as not to hinder The connecting cable 17 is supported in the event of movement of the connecting cable 17 . At the same time, support rollers with various structures can be selected according to terrain, load-bearing and other factors, so as to reduce the damage to the roof of the house where the installation is installed, and at the same time completely remove the ground anchor and tension cable structure.

In the present invention, a realizable automatic corner photovoltaic array can be: the power of the photovoltaic 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 kg. The photovoltaic square array is set in a site with a length of 50 meters and a width of 100 meters, wherein the distance between photovoltaic modules is 2 meters, and each group of photovoltaic modules includes 25 pieces; the distance between each automatic corner photovoltaic system is 2 meters , the average unit width interval is 2 meters (every two groups are side by side, the interval is 50mm), and a total of 50 units are installed, that is, the photovoltaic square array needs 1250 photovoltaic modules, and the weight of photovoltaic modules in each photovoltaic system is 325 kg.

Claims (7)

1. An automatic corner photovoltaic system, characterized in that, comprising: A number of photovoltaic modules arranged in parallel, each photovoltaic module is connected to four connecting cables through corresponding four positions; a four-link frame is connected to the points corresponding to the ends of the four connecting cables, and the four-link The frame includes two horizontal support rods and two vertical synchronous 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 around; 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, characterized in that, the corresponding four positions of the photovoltaic module are respectively connected to the connecting cable via a movable lock, and the movable lock includes an upper connector , the lower connector and the connecting shaft. 3 . The automatic corner photovoltaic system according to claim 1 , characterized in that, floor support rollers are arranged under the connecting cables. 4 . 4. An automatic corner photovoltaic array, characterized in that it includes a photovoltaic array and a corner drive mechanism; the photovoltaic array is formed by a number of photovoltaic rows; the photovoltaic row includes a support mechanism and a support mechanism supported A number of photovoltaic modules; the corresponding four positions of each photovoltaic module are respectively connected to four connecting cables; the points 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 revolving cable is connected between the two ends of each supporting frame; the supporting mechanism includes opposite brackets, and each bracket is provided with an upper The driven wheel and the 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 synchronous rod of each photovoltaic column, and the The other end of the horizontal stay cable goes around the diverting pulley and connects with the pull cable. 5. The automatic corner photovoltaic array according to claim 4, characterized in that, the corresponding four positions of the photovoltaic modules are respectively connected to the connecting cables via movable locks, and the movable locks include an upper connection parts, lower connectors and connecting shafts. 6 . The automatic corner photovoltaic system according to claim 4 , characterized in that, floor-standing support rollers are arranged under the connecting cables. 7 . 7 . The automatic corner photovoltaic system according to claim 4 , wherein there are two sets of the corner driving mechanism, which are respectively located on both sides of the photovoltaic column, and each makes the photovoltaic module rotate in opposite directions.