Photovoltaic support

Abstract

The utility model provides a photovoltaic support, which comprises a photovoltaic panel frame used for installing at least one photovoltaic panel, a support, a driving mechanism, a control device and a positioning device, and the positioning device realizes accurate positioning of the position of the sun through cooperation of light sensitivity of a plurality of photoresistors and a mechanical structure of a resistor with a fixed resistance value and a cross-shaped partition plate. The position of the sun is transmitted to the control system, then the control system processes the collected data, the inclination angle and the azimuth angle of the photovoltaic panel frame are adjusted through the driving mechanism, the function of accurately tracking the sun illumination is achieved, the sunlight is made to vertically irradiate the solar photovoltaic panel at any time, the annual average power generation amount of the photovoltaic panel is increased, and the power generation efficiency is improved. In addition, the device is simple in structure, low in cost and convenient to install, use and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and in particular to a photovoltaic bracket. Background Art

[0002] There are various tracking methods for photovoltaic brackets. There are two main commonly used tracking methods. One is the tracking method of the apparent sun trajectory. The principle of the apparent sun trajectory tracking is to calculate the solar altitude and azimuth parameters at each moment from sunrise to sunset every day based on the sun's motion trajectory through a computer using astronomical formulas. The control system controls the motor to rotate according to the calculated solar altitude and azimuth parameters, driving the tracking device to track the sun. This tracking method is closely related to the calculation of the sun's position, the geographical location (such as longitude, latitude, etc.), and the system clock, resulting in the need for horizontal and north-pointing adjustments during its initial installation. This not only increases the workload during installation, but also makes it difficult to control its tracking accuracy and has low sensitivity. Another type of photoelectric sensor solar tracking control method uses photosensitive silicon photoelectric tubes, silicon photocells and other components to capture sunlight. The sensor is generally installed on a lighting panel. The position of the sun captured by the sensor controls the motor to rotate to adjust the position of the photovoltaic panel so that the photovoltaic panel faces the sun. Although this tracking method is convenient to install and has high sensitivity, its cost is relatively high.

[0003] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0004] The utility model provides a photovoltaic bracket, aiming to improve at least one of the above-mentioned technical problems. The angle facing the sun is found by the difference between multiple photoresistors, and the orientation of the photovoltaic panel is adjusted by a simple driving structure, so as to realize direct sunlight on the photovoltaic panel. The present application has a simple structure and is easy to install, with low cost and high precision.

[0005] In order to solve the above technical problems, the utility model provides a photovoltaic bracket, including a photovoltaic panel frame and a bracket for installing at least one photovoltaic panel, the bracket is provided with a driving mechanism and a control device, and also includes a positioning device for positioning the sun arranged on the photovoltaic panel frame, the photovoltaic panel frame is installed on the output end of the driving mechanism; the driving mechanism and the positioning device are respectively connected to the control device; the control device controls the driving mechanism to adjust the direction of the photovoltaic panel frame according to the information collected by the positioning device.

[0006] As a further optimization, the positioning device includes a positioning platform, on which a cross isolation plate is arranged to divide the positioning platform into four areas, and also includes four photoresistors evenly spaced on the positioning platform.

[0007] As a further optimization, the positioning device also includes an acquisition circuit, on which the four photoresistors are arranged in parallel with each other; the four photoresistors are respectively connected in series with a fixed resistor of equal value; and also includes four data acquisition lines respectively connected to the lines of the four photoresistors, and the output ends of the data acquisition lines are connected to the control device; and the input end of the acquisition circuit is connected to an input power supply.

[0008] As a further optimization, the driving mechanism includes a rotating shaft, a rotating table, an articulated ear seat, a rotating block and a first motor. The rotating shaft is rotatably connected to the bracket, the upper end of the rotating shaft is coaxially and fixedly connected to the rotating table, the articulated ear seat is fixed at the upper end of the rotating table, the first motor is installed on one side of the articulated ear seat, the output end of the first motor passes through the articulated ear seat and is coaxially connected to the rotating block, and the photovoltaic panel frame is installed above the rotating block.

[0009] As a further optimization, it also includes a second motor and a gear, the second motor is installed on the bracket, and the gear is coaxially fixed on the output end of the second motor; rotating teeth are arranged on the side wall of the rotating table, and the rotating teeth are meshed with the gear.

[0010] As a further optimization, the rotating block is semi-cylindrical.

[0011] As a further optimization, sixteen photovoltaic panels are provided.

[0012] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0013] A photovoltaic bracket provided by the present application includes a photovoltaic panel frame, a bracket, a driving mechanism, a control device and a positioning device for installing at least one photovoltaic panel. The positioning device realizes accurate positioning of the sun's position through the light sensitivity of multiple photoresistors in combination with a fixed resistance resistor and a mechanical structure of a cross partition, and transmits the sun's position to a control system. The control system then processes the collected data and adjusts the inclination angle and azimuth angle of the photovoltaic panel frame through the driving mechanism to realize the function of accurate tracking of sunlight, so that the sunlight can be vertically irradiated on the solar photovoltaic panel at any time, thereby increasing the annual average power generation of the photovoltaic panel and improving its economy. In addition, the present application has a simple structure, low cost, and is convenient for installation, use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of a photovoltaic bracket of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a driving mechanism of a photovoltaic support of the utility model;

[0017] Figure 3 It is a schematic diagram of a positioning device for a photovoltaic bracket of the utility model;

[0018] Figure 4 It is a schematic diagram of a collection circuit of a photovoltaic bracket of the utility model.

[0019] Markings in the figure: 1. Photovoltaic panel; 2. Photovoltaic panel frame; 3. Bracket; 4. Control device; 5. Positioning device; 6. Rotating shaft; 7. Rotating table; 8. Articulated ear seat; 9. Rotating block; 10. First motor; 11. Second motor; 12. Gear; 13. Rotating gear; 14. Positioning table; 15. Cross isolation plate; 16. Photoresistor; 17. Fixed resistor; 18. Input power supply; 19. Data acquisition line. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Depend on Figures 1 to 4As shown, an embodiment of the utility model provides a photovoltaic bracket, including a photovoltaic panel frame 2 and a bracket 3 for installing at least one photovoltaic panel 1, the bracket 3 is provided with a driving mechanism and a control device 4, and also includes a positioning device 5 for positioning the sun, which is arranged on the photovoltaic panel frame 2, and the photovoltaic panel frame 2 is installed on the output end of the driven mechanism; the driving mechanism and the positioning device 5 are respectively connected to the control device 4; the control device 4 controls the driving mechanism to adjust the direction of the photovoltaic panel frame 2 according to the information collected by the positioning device 5, so as to align with the sun so that the photovoltaic panel 1 can obtain direct sunlight.

[0022] Among them, preferably, the driving mechanism includes a rotating shaft 6, a rotating table 7, an articulated ear seat 8, a rotating block 9 and a first motor 10, the rotating shaft 6 is rotatably connected to the bracket 3, the upper end of the rotating shaft 6 is coaxially fixedly connected to the rotating table 7, the articulated ear seat 8 is fixed at the upper end of the rotating table 7, the first motor 10 is installed on one side of the articulated ear seat 8, the output end of the first motor 10 passes through the articulated ear seat 8 and is coaxially connected to the rotating block 9, the photovoltaic panel frame 2 is installed above the rotating block 9, the first motor 10 drives the rotating block 9 to rotate, thereby adjusting the inclination angle of the photovoltaic panel frame 2, and then adjusting the angle according to the relative height of the sun.

[0023] Furthermore, the rotating block 9 is semi-cylindrical, and one side of the cross section is connected to the photovoltaic panel frame 2 , so as to facilitate the rotation of the rotating block 9 on the rotating platform 7 .

[0024] Preferably, the driving mechanism also includes a second motor 11 and a gear 12, the second motor 11 is mounted on the bracket 3, and the gear 12 is coaxially fixed to the output end of the second motor 11; a rotating gear 13 is arranged on the circumferential side wall of the rotating table 7, and the rotating gear 13 is engaged with the gear 12. The gear 12 is driven to rotate by the second motor 11, and the rotating table 7 is driven to rotate by the rotating gear 13 to adjust the azimuth angle of the photovoltaic panel frame 2 to align with the sun.

[0025] Preferably, the positioning device 5 includes a positioning platform 14, on which is disposed a cross isolation plate 15 that divides the positioning platform 14 into four areas, and also includes four photoresistors 16 that are evenly spaced on the positioning platform 14, wherein the photoresistors 16 are respectively disposed at the center positions of the separated respective areas, so that each photoresistor 16 receives sunlight more accurately and without interfering with each other.

[0026] Among them, the positioning device 5 also includes a collection circuit, and four photoresistors 16 are arranged in parallel on the collection circuit; the four photoresistors 16 are respectively connected in series with a fixed resistor 17 of equal value; a photoresistor 16 and a fixed resistor 17 form a circuit, and the four circuits are connected in parallel, and are uniformly powered by an input power supply 18, and the voltage between the photoresistor 16 and the fixed resistance resistor is collected through four data collection lines 19, and the output end of the data collection line 19 is connected to the control device 4. Since the photoresistor 16 has the characteristic that the resistance value will change with the intensity and direction of light, when the photoresistor 16 is separated by the cross isolation plate 15 and the collection device is not facing the direction of light, the resistance values ​​of the four photoresistors 16 will be different, and the voltages collected by the four data collection lines 19 will also be different. The collected voltage data is transmitted to the control device 4. The control device 4 infers and determines the position of the sun based on the voltage data of the four positions, and outputs a control command to the drive mechanism. The first motor 10 and the second motor 11 rotate after receiving the control command to adjust the azimuth and inclination angle of the photovoltaic panel frame 2. When the sunlight is vertically incident on the positioning device 5, the voltages collected by the four data collection lines 19 are consistent, and the control device 4 stops adjusting, thereby realizing the automatic tracking function of the photovoltaic bracket 3 and improving the annual average power generation of the photovoltaic panel 1.

[0027] Preferably, there are sixteen photovoltaic panels 1 disposed on the photovoltaic panel frame 2, arranged in a matrix.

[0028] The above description is only the preferred implementation 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 photovoltaic bracket, It is characterized in that It comprises a photovoltaic panel frame and a bracket for mounting at least one photovoltaic panel, the bracket is provided with a driving mechanism and a control device, and also comprises a positioning device arranged on the photovoltaic panel frame, the photovoltaic panel frame is mounted on the output end of the driving mechanism; the driving mechanism and the positioning device are respectively connected to the control device; The control device controls the driving mechanism to adjust the orientation of the photovoltaic panel frame according to the information collected by the positioning device; The positioning device comprises a positioning platform, on which a cross isolation plate is arranged to divide the positioning platform into four areas, and also comprises four photoresistors evenly spaced on the positioning platform; The positioning device also includes a data acquisition circuit, on which the four photoresistors are arranged in parallel with each other; the four photoresistors are respectively connected in series with a fixed resistor of equal value; and also includes four data acquisition lines respectively connected to the four photoresistors, wherein the output ends of the data acquisition lines are connected to the control device; and the input end of the acquisition circuit is connected to an input power supply.

2. A photovoltaic bracket according to claim 1, Features The driving mechanism includes a rotating shaft, a rotating table, an articulated ear seat, a rotating block and a first motor. The rotating shaft is rotatably connected to the bracket, the upper end of the rotating shaft is coaxially and fixedly connected to the rotating table, the articulated ear seat is fixed at the upper end of the rotating table, the first motor is installed on one side of the articulated ear seat, the output end of the first motor passes through the articulated ear seat and is coaxially connected to the rotating block, and the photovoltaic panel frame is installed above the rotating block.

3. A photovoltaic bracket according to claim 2, Features , also includes a second motor and a gear, the second motor is installed on the bracket, and the gear is coaxially fixed on the output end of the second motor; a rotating tooth is arranged on the side wall of the rotating table, and the rotating tooth is meshed with the gear.

4. A photovoltaic bracket according to claim 2, Features , the rotating block is semi-cylindrical.

5. A photovoltaic bracket according to claim 1, Features , there are sixteen photovoltaic panels.

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