Photovoltaic device with automatic calibration function

Abstract

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic device with an automatic calibration function, which can improve the photoelectric conversion efficiency and reduce the labor cost. Comprising a supporting column used for supporting the whole photovoltaic device; the calibration adjusting mechanism is arranged at the top of the supporting column and used for controlling the photovoltaic device to calibrate, and a light sensor is arranged on the calibration adjusting mechanism; the two photovoltaic supporting rods are symmetrically and rotationally arranged on the calibration adjusting mechanism and are used for adjusting the angle in the vertical direction; the two photovoltaic panels are fixedly arranged on the two photovoltaic supporting rods respectively and are used for carrying out photoelectric conversion; the calibration adjusting mechanism comprises a transmission case, the transmission case is rotatably arranged on the supporting column, a rotating shaft is transversely arranged in the transmission case, the rotating shaft rotates in the transmission case, the rotating shaft is fixedly connected with the two photovoltaic supporting rods, and the rotating shaft is fixedly sleeved with a first worm gear; and the first worm is rotationally arranged in the transmission box.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic device with automatic calibration function. BACKGROUND

[0002] Under the background of increasingly severe global energy crisis and rising environmental protection demand, the development and utilization of renewable energy have attracted widespread attention. As a clean and renewable energy, solar energy has the characteristics of inexhaustibility and endlessness, and occupies an increasingly important position in the energy field. Photovoltaic power generation technology, as one of the main ways of solar energy utilization, directly converts solar energy into electric energy through photovoltaic panels, has the advantages of no pollution, no noise, high energy quality, short construction period, short time cost of obtaining energy, etc. and has been widely used in power supply, distributed energy system, solar building integration and other fields.

[0003] However, the current photovoltaic device still has some problems to be solved in practical application. The photoelectric conversion efficiency of the photovoltaic panel is affected by many factors, among which the illumination angle is a key factor. Due to the rotation and revolution of the earth, the position of the sun changes constantly in a day, and the altitude and azimuth of the sun also change in different seasons. If the photovoltaic panel always maintains a fixed installation angle and cannot be adjusted in real time according to the change of the sun's position, the photovoltaic panel cannot receive sunlight at the best angle for most of the day, resulting in low photoelectric conversion efficiency and failing to fully develop the power generation potential of the photovoltaic device. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a photovoltaic device with automatic calibration function which can improve photoelectric conversion efficiency and reduce labor cost.

[0005] The photovoltaic device with automatic calibration function of the utility model comprises:

[0006] The support column is used for supporting the whole photovoltaic device.

[0007] The calibration adjusting mechanism is arranged at the top of the support column and is used for controlling the calibration of the photovoltaic device. A light sensor is arranged on the calibration adjusting mechanism.

[0008] The two photovoltaic struts are symmetrically arranged on the calibration adjusting mechanism and are used for adjusting the vertical angle.

[0009] The two photovoltaic panels are respectively fixedly arranged on the two photovoltaic struts and are used for photoelectric conversion.

[0010] The calibration adjusting mechanism comprises:

[0011] The transmission box is rotationally arranged on the supporting column, a rotating shaft is horizontally arranged in the transmission box, the rotating shaft is rotationally arranged in the transmission box, the rotating shaft is fixedly connected with the two photovoltaic supporting rods, and a first worm wheel is fixedly arranged on the rotating shaft;

[0012] The first worm is rotationally arranged in the transmission box, and the first worm is engaged with the first worm wheel.

[0013] The driving shaft is fixedly connected with the first worm, and is used for controlling rotation of the first worm.

[0014] The photovoltaic device with the automatic calibration function further comprises:

[0015] The rotating support is fixedly installed at the top end of the supporting column.

[0016] The second worm wheel is rotationally arranged in the rotating support, and the second worm wheel drives the whole transmission box to rotate.

[0017] The second worm is rotationally arranged in the rotating support, and the second worm is engaged with the second worm wheel.

[0018] The photovoltaic device with the automatic calibration function comprises two first stroke switches arranged on the outer end surface of the transmission box, and the two first stroke switches are matched with the two first stroke switches to limit the rotating stroke of the photovoltaic supporting rod.

[0019] The photovoltaic device with the automatic calibration function comprises two second stroke switches arranged on the supporting column, and a second stroke switch is arranged on the transmission box.

[0020] The photovoltaic device with the automatic calibration function further comprises a lime support, the lime support is supported on the ground, the lime support is used for supporting the supporting column, and the supporting column is fixedly connected with the lime support.

[0021] The photovoltaic device with the automatic calibration function comprises a steel reinforcement frame arranged in the lime support, and the lime support is made by pouring with the steel reinforcement frame as a mold core.

[0022] The photovoltaic device with the automatic calibration function comprises a grounding rod arranged at the bottom end of the supporting column.

[0023] The photovoltaic device with the automatic calibration function comprises a plurality of reinforcing rods arranged at the bottom end of the photovoltaic panel, and the reinforcing rods are fixedly connected with the photovoltaic supporting rods.

[0024] Compared with the prior art, the photovoltaic device with the automatic calibration function has the following beneficial effects:

[0025] The device can automatically calibrate the angle of the photovoltaic panel according to the change of the sun position, so that the photovoltaic panel always receives sunlight at the optimal angle, effectively solves the problem of low photoelectric conversion efficiency caused by the fixed installation angle of the photovoltaic panel, fully develops the power generation potential of the photovoltaic device, and improves the energy utilization efficiency; compared with the traditional manual adjustment of the angle of the photovoltaic panel, the photovoltaic device with the automatic calibration function does not need to be manually operated regularly, can be automatically adjusted according to environmental conditions, greatly reduces the labor and time cost, and reduces the maintenance difficulty and cost of the photovoltaic device. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model will be further described in connection with the drawings.

[0027] Figure 1 is the structure diagram of the utility model;

[0028] Figure 2 is the installation structure diagram of the photovoltaic panel and the calibration adjusting mechanism;

[0029] Figure 3 is the installation structure diagram of the calibration adjusting mechanism;

[0030] Figure 4 is the transmission structure diagram of the calibration adjusting mechanism;

[0031] Figure 5 is the enlarged structure diagram of the steel bar framework;

[0032] Mark in the drawing: 1, support column; 11, photovoltaic support rod; 12, photovoltaic panel; 13, lime support; 14, steel bar framework; 15, grounding rod; 16, reinforcing rod; 2, calibration adjusting mechanism; 21, transmission box; 22, rotating shaft; 23, first worm wheel; 24, first worm; 25, drive shaft; 26, rotating support; 27, second worm wheel; 28, second worm; 2a, first stroke dial; 2b, first stroke switch; 2c, second stroke switch; 2d, second stroke dial. DETAILED DESCRIPTION

[0033] The specific implementation of the utility model will be further described in detail in connection with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0034] As shown in Figures 1 to 5 The utility model discloses a photovoltaic device with automatic calibration function, comprising:

[0035] Support column 1, support column 1 is used to support the whole photovoltaic device;

[0036] A calibration adjusting mechanism 2 is arranged at the top of the support column 1 and is used to control the calibration of the photovoltaic device. A light sensor is arranged on the calibration adjusting mechanism 2.

[0037] Two photovoltaic support rods 11 are symmetrically arranged on the calibration adjusting mechanism 2 and are used to adjust the vertical angle.

[0038] Two photovoltaic panels 12 are respectively fixedly arranged on the two photovoltaic support rods 11 and are used to perform photoelectric conversion.

[0039] The calibration adjusting mechanism 2 comprises:

[0040] A transmission box 21 is rotatably arranged on the support column 1. A rotating shaft 22 is horizontally arranged in the transmission box 21. The rotating shaft 22 is rotatable in the transmission box 21. The rotating shaft 22 is fixedly connected with the two photovoltaic support rods 11. A first worm gear 23 is fixedly arranged on the rotating shaft 22.

[0041] A first worm 24 is rotatably arranged in the transmission box 21. The first worm 24 is engaged with the first worm gear 23.

[0042] A driving shaft 25 is fixedly connected with the first worm 24 and is used to control the rotation of the first worm 24.

[0043] The working process and principle of the device are as follows: when it is necessary to adjust the angle of the photovoltaic panel to adapt to the change of the position of the sun, an external power source drives the driving shaft 25 to rotate; the driving shaft 25 is fixedly connected with the first worm 24, so that the rotation of the driving shaft 25 drives the first worm 24 to rotate synchronously in the transmission box 21; the first worm 24 is engaged with the first worm wheel 23, and according to the principle of worm wheel and worm transmission, the rotation of the first worm 24 drives the first worm wheel 23 to rotate; the first worm wheel 23 is fixedly sleeved on the rotating shaft 22, so that the rotation of the first worm wheel 23 drives the rotating shaft 22 to rotate in the transmission box 21; the rotating shaft 22 is fixedly connected with the two photovoltaic support rods 11, and the rotation of the rotating shaft 22 drives the two photovoltaic support rods 11 to rotate symmetrically on the transmission box 21, so as to realize the adjustment of the angle of the photovoltaic support rod 11 in the vertical direction; the two photovoltaic panels 12 are fixedly installed on the two photovoltaic support rods 11 respectively, and with the adjustment of the angle of the photovoltaic support rod 11, the angle of the photovoltaic panel 12 also changes accordingly, so that it can be adjusted to the optimal receiving angle in real time according to the change of the position of the sun; the device can automatically calibrate the angle of the photovoltaic panel 12 according to the change of the position of the sun, so that the photovoltaic panel 12 can always receive sunlight at the optimal angle, effectively solving the problem of low photoelectric conversion efficiency caused by the fixed installation angle of the photovoltaic panel 12, fully exerting the power generation potential of the photovoltaic device, and improving the energy utilization efficiency; compared with the traditional manual adjustment of the angle of the photovoltaic panel, the photovoltaic device with the automatic calibration function does not need to be operated regularly by manual, and can be automatically adjusted according to the environmental conditions, greatly reducing the labor and time cost, and reducing the maintenance difficulty and cost of the photovoltaic device.

[0044] As shown in Figures 3 to 4 the calibration adjusting mechanism 2 further comprises:

[0045] a rotating support 26 fixedly installed at the top end of the support column 1;

[0046] a second worm wheel 27 rotatably arranged in the rotating support 26, and the second worm wheel 27 drives the transmission box 21 to rotate as a whole;

[0047] a second worm 28 rotatably arranged in the rotating support 26, and the second worm 28 is engaged with the second worm wheel 27;

[0048] The second worm 28 is driven by an external power source to rotate in the rotating support 26; due to the meshing of the second worm 28 and the second worm wheel 27, according to the worm and gear transmission principle, the rotation of the second worm 28 will drive the second worm wheel 27 to rotate inside the rotating support 26; the rotation of the second worm wheel 27 can drive the transmission box 21 to rotate as a whole, so the rotation of the second worm wheel 27 will drive the transmission box 21 to rotate around the rotating support 26 at the top of the support column 1; the rotation of the transmission box 21 will drive the photovoltaic support rod 11 to rotate, and then drive the two photovoltaic support rods 11 and the two photovoltaic panels 12 fixedly installed on the photovoltaic support rods 11 to rotate together, so as to realize the adjustment of the angle of the photovoltaic panel 12 in the horizontal direction; the original calibration and adjustment mechanism can only adjust the angle of the photovoltaic panel 12 in the vertical direction through the transmission of the rotating shaft 22 and the first worm wheel 23 and the first worm 24; and after the rotating support 26, the second worm wheel 27 and the second worm 28 are added, the angle of the photovoltaic panel 12 in the horizontal direction can be further adjusted; in this way, the photovoltaic panel 12 can realize omnidirectional angle adjustment according to the change of the position of the sun in the three-dimensional space, so that the photovoltaic panel 12 can always receive sunlight at the best angle, and the photoelectric conversion efficiency is greatly improved; the change rule of the position of the sun in different regions and different seasons is different, and the change range of the altitude angle and the azimuth angle of the sun in some regions is large; the device can adapt to various complex changes of the position of the sun through the omnidirectional angle adjustment function, and can ensure the power generation efficiency of the photovoltaic panel 12 and improve the universality and adaptability of the photovoltaic device, whether in high-latitude regions or low-latitude regions, whether in summer or winter.

[0049] As Figure 3As shown in the figure, one set of photovoltaic struts 11 is provided with two first stroke tabs 2a, the included angle between the two first stroke tabs 2a is 90°, and the outer end surface of the transmission box 21 is provided with two first stroke switches 2b, the two first stroke switches 2b cooperate with the two first stroke tabs 2a to limit the rotation stroke of the photovoltaic strut 11; the photovoltaic strut 11 is in the initial position, at this time one of the first stroke tabs 2a contacts or is near the trigger position of one of the first stroke switches 2b, and the other first stroke tab 2a is in the untriggered state; when the driving shaft 25 rotates to drive the first worm 24 to rotate, and then the first worm wheel 23 and the rotating shaft 22 make the photovoltaic strut 11 start to rotate, with the rotation of the photovoltaic strut 11, the two first stroke tabs 2a fixed thereon also rotate; when the photovoltaic strut 11 rotates to a certain angle, one of the first stroke tabs 2a will contact the corresponding first stroke switch 2b, triggering the first stroke switch 2b; after the first stroke switch 2b is triggered, it will send a signal to the control system, and after the control system receives the signal, it controls the driving shaft 25 to stop rotating, so that the photovoltaic strut 11 stops at the angle position; since the included angle between the two first stroke tabs 2a is 90°, when the photovoltaic strut 11 needs to rotate in the opposite direction, the other first stroke tab 2a will cooperate with the other first stroke switch 2b to trigger the stroke switch when rotating to the corresponding angle, realizing the stroke limitation of the photovoltaic strut 11 in the other direction; by setting two first stroke tabs 2a with an included angle of 90° and two first stroke switches 2b, the rotation stroke of the photovoltaic strut 11 can be accurately limited, ensuring that the photovoltaic panel 12 can only rotate within a predetermined angle range in the vertical direction; it can avoid the photovoltaic panel 12 from rotating too much, ensure the safe operation of the photovoltaic device, and at the same time help to improve the accuracy of the angle adjustment of the photovoltaic panel 12, so that it can better adapt to the change of the position of the sun and improve the photoelectric conversion efficiency; if there is no stroke limitation, the photovoltaic strut 11 may exceed its design range during rotation, causing collision or excessive extrusion with the transmission box 21 or other components, thereby damaging the mechanical structure of the photovoltaic device; the cooperation of the first stroke tab 2a and the first stroke switch 2b can effectively prevent this situation from happening, prolonging the service life of the photovoltaic device.

[0050] As Figure 3As shown, the support column 1 is provided with two second travel switches 2c, and the transmission box 21 is provided with a second travel tab 2d, which cooperates with the second travel switch 2c to limit the rotation angle of the transmission box 21; when the transmission box 21 is in the initial position, the second travel tab 2d is in contact or a specific relative position state with one of the second travel switches 2c, and the other second travel switch 2c is in an untriggered state; this sets a starting reference point for the subsequent rotation travel of the transmission box 21; when it is necessary to adjust the angle of the photovoltaic panel 12 in the horizontal direction, the second worm 28 is driven to rotate by an external power source; due to the meshing of the second worm 28 and the second worm gear 27, the rotation of the second worm 28 drives the second worm gear 27 to rotate in the rotating support 26; and the second worm gear 27 is connected with the transmission box 21, thereby driving the transmission box 21 to rotate on the support column 1; in the process of rotation of the transmission box 21, the second travel tab 2d fixed thereon also rotates; with the rotation of the transmission box 21, the second travel tab 2d gradually approaches the other second travel switch 2c; when the second travel tab 2d contacts the second travel switch 2c, the travel switch is triggered; after the second travel switch 2c is triggered, a signal is sent to the control system; after the control system receives the signal, the external power source is immediately controlled to stop driving the second worm 28 to rotate, thereby stopping the rotation of the transmission box 21, realizing the limitation of the rotation angle of the transmission box 21; similarly, when it is necessary to rotate the transmission box 21 in the opposite direction, when the second travel tab 2d contacts and triggers the other second travel switch 2c, the transmission box 21 is also stopped from rotating through the control system, ensuring that the transmission box 21 rotates within a predetermined angle range; by setting two second travel switches 2c and the second travel tab 2d cooperating therewith, the rotation angle of the transmission box 21 can be accurately limited; this helps to ensure that the photovoltaic panel 12 can be accurately adjusted to the best angle in the horizontal direction to receive sunlight and improve the photoelectric conversion efficiency; compared with the case without travel limitation, this precise control can avoid over-rotation or insufficient rotation of the photovoltaic panel 12, so that the photovoltaic device can better adapt to the change of the sun position at different times and seasons; accurate travel limitation can ensure the stability of the photovoltaic device during operation; when the transmission box 21 rotates within a predetermined angle range, the stress of the entire photovoltaic device is more uniform, reducing the vibration and shaking caused by improper angle adjustment; this helps to improve the stability and reliability of the photovoltaic device and reduce the risk of equipment failure.

[0051] As Figures 1 to 2As shown, it also includes a lime support 13, which is supported on the ground and used to support the support column 1. The support column 1 is fixedly connected to the lime support 13. The lime support 13 provides a solid and reliable support foundation for the support column 1, enabling the photovoltaic device to be stably installed and used under various ground conditions. Whether on flat ground or slightly undulating ground, the lime support 13 can evenly distribute the weight of the photovoltaic device on the ground through its own structural strength and stability, avoiding problems such as tilting and swaying of the photovoltaic device caused by uneven ground or unstable support. This ensures that the photovoltaic panel 12 can be accurately adjusted to the optimal angle to receive sunlight, improving the photoelectric conversion efficiency. In areas with strong winds, the photovoltaic device needs to have strong... Wind resistance: The presence of the lime support 13 increases the contact area and stability between the photovoltaic device and the ground, enabling the photovoltaic device to better resist the effects of wind when facing strong winds and other severe weather conditions. This reduces vibration and deformation caused by wind, protects the mechanical structure of the photovoltaic device from damage, and extends the service life of the equipment. The design of the lime support 13 makes the installation of the photovoltaic device more convenient and standardized. It provides a standard installation platform for the support column 1, allowing construction personnel to fix the support column 1 to the lime support 13 according to the predetermined installation process, improving installation efficiency and quality. At the same time, during subsequent maintenance, the lime support 13 also provides a stable operating platform for maintenance personnel, facilitating the inspection, debugging, and other work of the photovoltaic device.

[0052] like Figure 5 As shown, a steel reinforcement cage 14 is provided inside the lime support 13, and the lime support 13 is cast using the steel reinforcement cage 14 as a core. The steel reinforcement cage 14 has high tensile and bending strength, and its placement inside the lime support 13 can significantly improve the overall structural strength of the lime support 13. When the photovoltaic device is subjected to external forces such as wind and earthquakes, the steel reinforcement cage 14 can share the external force with the lime material, effectively preventing cracks, deformation, or even damage to the lime support 13, thereby ensuring the stability and safety of the photovoltaic device. The lime material itself has a large shrinkage rate and is prone to cracking during the drying process; the presence of the steel reinforcement cage 14 can prevent cracking. The shrinkage of the lime material plays a certain restraining role, reducing the occurrence of cracks; even if cracks occur, the steel reinforcement cage 14 can limit the expansion of cracks, preventing them from further affecting the structural performance and service life of the lime support 13; the steel reinforcement cage 14 enables the lime support 13 to have better stability when bearing vertical and horizontal loads; the vertical load mainly comes from the weight of the photovoltaic device, and the steel reinforcement cage 14 can evenly transfer the load to the ground, preventing local crushing of the lime support 13; under horizontal loads such as wind, the steel reinforcement cage 14 can enhance the overturning resistance of the lime support 13, ensuring that the photovoltaic device remains stable in various harsh environments.

[0053] As shown in Figure 1 The bottom end of the support column 1 is provided with a grounding rod 15; in rainy weather, the photovoltaic device is prone to lightning strikes; the grounding rod 15 provides a low-impedance discharge channel for lightning current; when lightning strikes the photovoltaic device, the powerful lightning current can be quickly conducted into the ground through the grounding rod 15, avoiding the accumulation of lightning current inside the photovoltaic device, thereby protecting the photovoltaic panel 12, inverter, controller and other electrical equipment from lightning damage, and ensuring the safe operation of the photovoltaic device; during the operation of the photovoltaic device, the photovoltaic panel 12 and other components may generate static electricity due to friction, induction and other reasons; static electricity accumulation to a certain extent may interfere with electrical equipment, even cause spark discharge, and pose a safety hazard; the grounding rod 15 can conduct the generated static electricity into the ground in time, eliminating static electricity accumulation and ensuring the normal operation of the photovoltaic device and personnel safety; in a photovoltaic power generation system, electrical equipment may malfunction due to leakage and other reasons; the grounding rod 15 provides a safe discharge path for leakage current, and when electrical equipment leaks, the leakage current will flow into the ground through the grounding rod 15, allowing the metal shell and other parts of the device to maintain a near ground potential, preventing electrical accidents and improving the electrical safety of the photovoltaic device.

[0054] As shown in Figure 2 The bottom end of the photovoltaic panel 12 is provided with a plurality of reinforcing rods 16, and the reinforcing rods 16 are fixedly connected with the photovoltaic support rod 11; the reinforcing rods 16 provide additional support for the photovoltaic panel 12, increasing the connection strength between the photovoltaic panel 12 and the photovoltaic support rod 11; during the operation of the photovoltaic device, the reinforcing rods 16 can effectively resist the force of external environmental factors on the photovoltaic panel 12, preventing the photovoltaic panel 12 from shaking, deforming or even being damaged, and improving the structural stability of the entire photovoltaic device; the supporting effect of the reinforcing rods 16 reduces the stress concentration of the photovoltaic panel 12 itself and the connection part between the photovoltaic panel 12 and the photovoltaic support rod 11, reducing the risk of fatigue damage of these parts due to long-term stress; at the same time, the reinforcing rods 16 can withstand the deformation force of the photovoltaic panel 12 due to thermal expansion and contraction, avoiding damage to the photovoltaic panel 12 due to excessive deformation; therefore, the provision of the reinforcing rods 16 helps to prolong the service life of the photovoltaic panel 12 and the entire photovoltaic device.

[0055] The photovoltaic device with automatic calibration function of the utility model, its installation mode, connection mode or setting mode are all common mechanical ways, as long as the beneficial effects can be implemented.

[0056] The above is only the preferred embodiment of the utility model, it should be pointed out that for ordinary technical personnel in this technical field, on the premise of not departing from the technical principle of the utility model, can make a number of improvements and variations, these improvements and variations also should be regarded as the protection scope of the utility model.

Claims

1. A photovoltaic device with automatic calibration function, characterized in that, The utility model relates to a photovoltaic device, including: Supporting column for supporting photovoltaic device as a whole; Calibration adjusting mechanism is set up at the top of supporting column for controlling photovoltaic device to carry out calibration, and light sensor is arranged on calibration adjusting mechanism; Two photovoltaic support rods, two photovoltaic support rods are symmetrically arranged on calibration adjusting mechanism and are used for adjusting vertical direction angle; Two photovoltaic panels, two photovoltaic panels are respectively fixedly installed on two photovoltaic support rods and are used for carrying out photoelectric conversion; Wherein, the calibration adjusting mechanism includes: Transmission case is rotationally arranged on the supporting column, a rotating shaft is arranged horizontally in the transmission case, the rotating shaft rotates in the transmission case, the rotating shaft is fixedly connected with two photovoltaic support rods, and a first worm wheel is fixedly sleeved on the rotating shaft; First worm, rotationally arranged in the transmission case, the first worm is engaged with the first worm wheel; Driving shaft is fixedly connected with the first worm for controlling the rotation of the first worm.

2. The photovoltaic device with automatic calibration function according to claim 1, wherein, The calibration adjusting mechanism further includes: Rotary support is fixedly installed at the top end of the supporting column; Second worm wheel is rotationally arranged in the rotary support, and the second worm wheel drives the whole transmission case to rotate; Second worm is rotationally arranged in the rotary support, and the second worm is engaged with the second worm wheel.

3. The photovoltaic device with automatic calibration function according to claim 1, wherein, One group of photovoltaic support rods is provided with two first stroke switches, the included angle between the two first stroke switches is 90 DEG, two first stroke switches are arranged on the outer end surface of the transmission case, and the two first stroke switches are matched with the two first stroke switches to limit the rotation stroke of the photovoltaic support rod.

4. The photovoltaic device with automatic calibration function according to claim 2, wherein, Two second stroke switches are arranged on the supporting column, a second stroke switch is arranged on the transmission case, and the second stroke switch is matched with the second stroke switch to limit the rotation angle of the transmission case.

5. The photovoltaic device with automatic calibration function according to claim 1, wherein, It further includes a lime support, the lime support is supported on the ground, the lime support is used for supporting the supporting column, and the supporting column is fixedly connected with the lime support.

6. The photovoltaic device with automatic calibration function according to claim 5, wherein, The lime support is internally provided with a steel reinforcement framework, and the lime support is made by pouring with the steel reinforcement framework as a mold core.

7. The photovoltaic device with automatic calibration function according to claim 1, wherein, The bottom end of the supporting column is provided with a grounding rod.

8. The photovoltaic device with automatic calibration function according to claim 1, wherein, The bottom end of the photovoltaic panel is provided with a plurality of reinforcing rods, and the reinforcing rods are fixedly connected with the photovoltaic support rods.

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