Automatic tracking device for photovoltaic panel

Abstract

The utility model provides an automatic tracking device for a photovoltaic panel, and the device comprises a light sensor group, the light sensor group is provided with a plurality of light sensors, and the light sensor group is configured to obtain the illumination intensity in multiple directions, and converts the illumination intensity into a photoelectric signal; the photovoltaic panel comprises a smooth surface and a shady surface, and the light sensor group is arranged at the edge of the smooth surface of the photovoltaic panel; the X-axis adjusting assembly is arranged on the backlight surface of the photovoltaic panel, and the X-axis adjusting assembly is configured to adjust the pitching angle of the photovoltaic panel according to the photoelectric signal; the Z-axis adjusting assembly is arranged on the shady face of the photovoltaic panel, the Z-axis adjusting assembly is arranged on the side, away from the photovoltaic panel, of the X-axis adjusting assembly, and the Z-axis adjusting assembly is configured to control the photovoltaic panel to rotate in the horizontal direction according to the photoelectric signal; the two ends of the bottom support are connected with the Z-axis adjusting assembly and the bottom face respectively. The problem that existing photovoltaic tracking equipment cannot be continuously aligned with sunlight is solved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to an automatic tracking device for photovoltaic panels. Background Technology

[0002] Over the past four decades, there has been a growing recognition of the need to replace fossil fuels with safer, more sustainable energy sources. New energy supplies must also have low environmental impact, high efficiency, ease of use, and low production costs. For this reason, solar energy is considered one of the most promising technologies.

[0003] With the development of solar energy utilization, photovoltaic (PV) modules have gained increasing applications. As the core component for converting solar energy into electricity, the installation and placement of PV modules are crucial. Since the power generation efficiency of PV is significantly affected by the angle of sunlight, using a PV tracking device to move the PV modules according to the angle of sunlight can effectively improve the photoelectric conversion efficiency.

[0004] Existing photovoltaic (PV) tracking devices typically connect the drive unit directly to the rotor, which then rotates to track the angle of sunlight incidence. However, this existing drive structure prevents the PV tracking device from making precise adjustments and accurately capturing the intensity of light from all directions, thus hindering accurate and continuous PV alignment and limiting the PV's energy efficiency. Utility Model Content

[0005] This application provides an automatic photovoltaic panel tracking device to solve the problem that existing photovoltaic tracking equipment cannot continuously align with sunlight.

[0006] The tracking device includes:

[0007] A light sensor group having a plurality of light sensors, the light sensor group being configured to acquire light intensity in multiple directions and convert the light intensity into photoelectric signals;

[0008] A photovoltaic panel, comprising a front-lighting surface and a back-lighting surface, wherein the light sensor array is disposed at the edge of the front-lighting surface of the photovoltaic panel;

[0009] An X-axis adjustment component is disposed on the back surface of the photovoltaic panel, and the X-axis adjustment component is configured to adjust the pitch angle of the photovoltaic panel according to the photoelectric signal.

[0010] The Z-axis adjustment component is disposed on the back surface of the photovoltaic panel and on the side of the X-axis adjustment component away from the photovoltaic panel. The Z-axis adjustment component is configured to control the photovoltaic panel to rotate horizontally according to the photoelectric signal.

[0011] The bottom support is connected at both ends to the Z-axis adjustment assembly and the bottom surface, respectively.

[0012] Preferably, the photosensitive sensor group includes a first photosensitive sensor, a second photosensitive sensor, a third photosensitive sensor, a fourth photosensitive sensor, and an epitaxial plate. The first photosensitive sensor, the second photosensitive sensor, the third photosensitive sensor, and the fourth photosensitive sensor are respectively disposed on the four edges of the epitaxial plate on the same side, and there are gaps between the first photosensitive sensor, the second photosensitive sensor, the third photosensitive sensor, and the fourth photosensitive sensor.

[0013] The first light sensor, the second light sensor, the third light sensor, and the fourth light sensor are all arranged along a direction perpendicular to the photovoltaic panel, and are all configured to acquire the light intensity in their respective directions.

[0014] Preferably, the photovoltaic panel includes a photovoltaic mounting bracket, which is disposed on the back surface of the photovoltaic panel. The photovoltaic mounting bracket is connected to both the photovoltaic panel and the X-axis adjustment assembly, and the photovoltaic mounting bracket is hinged to the X-axis adjustment assembly.

[0015] The photovoltaic mounting bracket includes a first support plate and a second support plate, which are respectively connected to the back surface of the photovoltaic panel.

[0016] Preferably, the X-axis adjustment assembly includes:

[0017] X-axis mounting unit, the X-axis mounting unit is rotatably connected to both ends of the photovoltaic mounting bracket, the X-axis mounting unit clamps the first support plate and the second support plate;

[0018] An X-axis driven unit is connected to the X-axis mounting unit and is disposed between the first support plate and the second support plate;

[0019] An X-axis active unit is rotatably connected to an X-axis driven unit. The X-axis active unit is configured to rotate according to the photoelectric signal, thereby driving the X-axis driven unit to rotate and thus adjusting the pitch angle of the photovoltaic panel.

[0020] Preferably, the X-axis mounting unit includes a first X-axis mounting plate and a second X-axis mounting plate, the first X-axis mounting plate being rotatably connected to the first support plate, and the second X-axis mounting plate being rotatably connected to the second support plate.

[0021] Preferably, the X-axis driven unit includes:

[0022] The X-axis driven gear shaft is fixedly connected to the first support plate and the second support plate, and its two ends are rotatably connected to the first X-axis mounting plate and the second X-axis mounting plate, respectively.

[0023] The X-axis driven gear is mounted on the X-axis driven gear shaft, and the X-axis driven gear is installed between the first support plate and the second support plate.

[0024] The X-axis active unit includes:

[0025] The X-axis drive gear shaft passes through the X-axis first mounting plate;

[0026] The X-axis drive gear is mounted on the X-axis drive gear shaft and located between the X-axis first mounting plate and the X-axis second mounting plate. The X-axis drive gear meshes with the X-axis driven gear.

[0027] An X-axis motor is disposed on the side of the X-axis first mounting plate away from the X-axis drive gear. The X-axis motor is connected to the shaft of the X-axis drive gear and is configured to drive the X-axis drive gear shaft to rotate clockwise or counterclockwise in the vertical direction according to the photoelectric signal.

[0028] Preferably, the X-axis active unit further includes an X-axis reducer, which is disposed between the X-axis first mounting plate and the X-axis motor. The X-axis reducer is configured to reduce the speed of the X-axis motor until the X-axis motor stops rotating after the X-axis motor has rotated for a certain period of time according to the photoelectric signal, so as to rotate the photovoltaic panel to the pitch angle corresponding to the photoelectric signal.

[0029] Preferably, the Z-axis adjustment assembly includes:

[0030] Z-axis motor mounting plate, which is fixedly connected to the first X-axis mounting plate and the second X-axis mounting plate respectively;

[0031] Z-axis driven unit, the Z-axis driven unit is fixedly connected to the side of the Z-axis motor mounting plate away from the photovoltaic panel;

[0032] The Z-axis active unit and the X-axis active unit are disposed on both sides of the Z-axis motor mounting plate and pass through the Z-axis motor mounting plate. The Z-axis active unit is configured to rotate according to the photoelectric signal, driving the Z-axis driven unit to rotate clockwise or counterclockwise in the horizontal direction.

[0033] Preferably, the X-axis driven unit includes:

[0034] Z-axis driven gear shaft, the Z-axis driven gear shaft is fixedly connected to the side of the Z-axis motor mounting plate away from the photovoltaic panel;

[0035] The Z-axis fixed gear is mounted on the Z-axis driven gear shaft;

[0036] The Z-axis active unit includes:

[0037] Z-axis drive gear shaft, which passes through the Z-axis motor mounting plate;

[0038] The Z-axis drive gear is located at the end of the Z-axis drive gear shaft away from the photovoltaic panel, and the Z-axis drive gear meshes with the Z-axis fixed gear.

[0039] A Z-axis motor is mounted on the side of the Z-axis motor mounting plate near the photovoltaic panel. The end of the Z-axis drive gear shaft near the photovoltaic panel is connected to the Z-axis motor. The Z-axis motor is configured to drive the Z-axis drive gear shaft to rotate clockwise or counterclockwise in the horizontal direction according to the photoelectric signal.

[0040] Preferably, the Z-axis active unit further includes a Z-axis reducer, which is disposed between the Z-axis motor and the Z-axis motor mounting plate. The Z-axis reducer is configured to reduce the speed of the Z-axis motor after the Z-axis motor has rotated for a certain period of time according to the photoelectric signal until the Z-axis motor stops rotating, so as to rotate the photovoltaic panel to the horizontal angle corresponding to the photoelectric signal.

[0041] As described above, this application provides an automatic photovoltaic panel tracking device. The tracking device includes a light sensor group with several light sensors configured to acquire multi-directional light intensity and convert the light intensity into photoelectric signals; a photovoltaic panel including a front-lighting surface and a back-lighting surface, with the light sensor group disposed at the edge of the front-lighting surface; an X-axis adjustment component disposed on the back-lighting surface of the photovoltaic panel, configured to adjust the pitch angle of the photovoltaic panel according to the photoelectric signals; a Z-axis adjustment component disposed on the back-lighting surface of the photovoltaic panel, located on the side of the X-axis adjustment component away from the photovoltaic panel, configured to control the photovoltaic panel to rotate horizontally according to the photoelectric signals; and a bottom bracket connected at both ends to the Z-axis adjustment component and the bottom surface, respectively. This application solves the problem of existing photovoltaic tracking devices being unable to continuously align with sunlight using the above device. Attached Figure Description

[0042] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a front view schematic diagram of an automatic tracking device for photovoltaic panels according to this application;

[0044] Figure 2 This is a side view schematic diagram of an automatic tracking device for photovoltaic panels according to this application;

[0045] Figure 3 This is a three-dimensional structural diagram of an automatic tracking device for photovoltaic panels according to this application;

[0046] Figure 4 for Figure 1 Enlarged view of point A;

[0047] Figure 5 This is a schematic diagram of a light sensor group in an automatic tracking device for photovoltaic panels according to this application. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0049] See Figure 1 , Figure 2 and Figure 3 As can be seen, this embodiment provides an automatic tracking device for photovoltaic panels, the tracking device comprising:

[0050] A light sensor group 100 is provided, which has a plurality of light sensors. The light sensor group 100 is configured to acquire light intensity in multiple directions and convert the light intensity into photoelectric signals. Specifically, in this embodiment, the light sensor group 100 is used to acquire light intensity, which is light intensity in multiple directions.

[0051] It should be noted that the light sensor group 100 uses only conventional light sensors for obtaining light intensity. The core technology lies in splicing multiple light sensors together to obtain light intensity in multiple directions.

[0052] See Figure 5 As can be seen, the light sensor group 100 includes a first light sensor 110, a second light sensor 120, a third light sensor 130, a fourth light sensor 140, and an epitaxial plate 150. The first light sensor 110, the second light sensor 120, the third light sensor 130, and the fourth light sensor 140 are respectively disposed on the four edges of the epitaxial plate 150 on the same side, and there are gaps between the first light sensor 110, the second light sensor 120, the third light sensor 130, and the fourth light sensor 140. The first light sensor 110, the second light sensor 120, the third light sensor 130, and the fourth light sensor 140 are all disposed along a direction perpendicular to the photovoltaic panel 200, and are all configured to acquire the light intensity in their respective directions.

[0053] Specifically, in this embodiment, the light sensor group 100 obtains multi-directional light intensity through the first light sensor 110, the second light sensor 120, the third light sensor 130 and the fourth light sensor 140.

[0054] The tracking device also includes:

[0055] A photovoltaic panel 200 includes a front-lighting surface and a back-lighting surface. The light sensor group 100 is disposed at the edge of the front-lighting surface of the photovoltaic panel 200. Specifically, in this embodiment, the photovoltaic panel 200 is a conventional photovoltaic panel, with the side facing the sun being the front-lighting surface and the side facing away from the sun being the back-lighting surface.

[0056] See Figure 4 Furthermore, in some embodiments, the photovoltaic panel 200 includes a photovoltaic mounting bracket 210, which is disposed on the back surface of the photovoltaic panel 200. The photovoltaic mounting bracket 210 is connected to the photovoltaic panel 200 and the X-axis adjustment assembly 300, respectively, and is hinged to the X-axis adjustment assembly 300. The photovoltaic mounting bracket 210 includes a first support plate 211 and a second support plate 212, which are respectively connected to the back surface of the photovoltaic panel 200.

[0057] Specifically, in this embodiment, the photovoltaic panel 200 and subsequent equipment are connected by the first support plate 211 and the second support plate 212 in the photovoltaic mounting bracket 210, so as to avoid other equipment from directly contacting the photovoltaic panel 200 and causing damage to the photovoltaic panel 200.

[0058] The tracking device also includes:

[0059] An X-axis adjustment component 300 is disposed on the back surface of the photovoltaic panel 200. The X-axis adjustment component 300 is configured to adjust the pitch angle of the photovoltaic panel 200 according to the photoelectric signal. Specifically, in this embodiment, the X-axis adjustment component 300 is used to adjust the pitch angle of the photovoltaic panel 200. That is, when the direct sunlight point is slightly below the photovoltaic panel 200, the pitch angle of the photovoltaic panel 200 is increased by the X-axis adjustment component 300; when the direct sunlight point is slightly above the photovoltaic panel 200, the pitch angle of the photovoltaic panel 200 is decreased by the X-axis adjustment component 300, thereby ensuring that the sunlight remains directly on the back surface of the photovoltaic panel 200.

[0060] See Figure 4 It can be seen that the X-axis adjustment assembly 300 includes:

[0061] X-axis mounting unit 310 is rotatably connected to both ends of the photovoltaic mounting bracket 210, and the X-axis mounting unit 310 clamps the first support plate 211 and the second support plate 212;

[0062] X-axis driven unit 320, which is connected to the X-axis mounting unit 310, is disposed between the first support plate 211 and the second support plate 212;

[0063] X-axis active unit 330 is rotatably connected to X-axis driven unit 320. The X-axis active unit 330 is configured to rotate according to the photoelectric signal to drive the X-axis driven unit 320 to rotate, thereby adjusting the pitch angle of the photovoltaic panel 200.

[0064] Specifically, in this embodiment, the X-axis adjustment assembly 300 is connected to the photovoltaic panel 200 through the X-axis mounting unit 310. When there is an adjustment requirement, the X-axis active unit 330 is activated, and the X-axis driven unit 320 is driven by the X-axis active unit 330 to move counterclockwise or clockwise along the vertical direction, thereby adjusting the photovoltaic panel 200 to the optimal position in the vertical direction.

[0065] Furthermore, in some embodiments, the X-axis mounting unit 310 includes an X-axis first mounting plate 311 and an X-axis second mounting plate 312, wherein the X-axis first mounting plate 311 is rotatably connected to the first support plate 211, and the X-axis second mounting plate 312 is rotatably connected to the second support plate 212.

[0066] Specifically, in this embodiment, the X-axis first mounting plate 311 and the X-axis second mounting plate 312 are rotatably connected to the first support plate 211 and the second support plate 212, respectively, so as to connect the X-axis adjustment component 300 to the photovoltaic panel 200, and the two can rotate between each other.

[0067] Furthermore, in some embodiments, the X-axis driven unit 320 includes:

[0068] X-axis driven gear shaft 321, the X-axis driven gear shaft 321 is fixedly connected to the first support plate 211 and the second support plate 212 respectively, and the two ends of the X-axis driven gear shaft 321 are rotatably connected to the first X-axis mounting plate 311 and the second X-axis mounting plate 312 respectively;

[0069] X-axis driven gear 322, the X-axis driven gear 322 is mounted on the X-axis driven gear shaft 321, and the mounting position of the X-axis driven gear 322 is between the first support plate 211 and the second support plate 212;

[0070] The X-axis active unit 330 includes:

[0071] X-axis drive gear shaft 331, which passes through the X-axis first mounting plate 311;

[0072] X-axis drive gear 332 is mounted on the X-axis drive gear shaft 331 and is located between the X-axis first mounting plate 311 and the X-axis second mounting plate 312. The X-axis drive gear 332 meshes with the X-axis driven gear 322.

[0073] X-axis motor 333 is disposed on the side of the X-axis first mounting plate 311 away from the X-axis drive gear 332. The X-axis motor 333 is connected to the X-axis drive gear shaft 331. The X-axis motor 333 is configured to drive the X-axis drive gear shaft 331 to rotate clockwise or counterclockwise in the vertical direction according to the photoelectric signal.

[0074] Specifically, in this embodiment, when there is an adjustment requirement, the X-axis motor 333 receives the photoelectric signal sent by the light sensor group 100 and starts to operate. The operation of the X-axis motor 333 drives the X-axis drive gear shaft 331 to rotate. The X-axis drive gear 332 provided on the X-axis drive gear shaft 331 rotates with the X-axis drive gear shaft 331. The X-axis drive gear shaft 331 drives the X-axis driven gear 322 and the X-axis driven gear shaft 321 to rotate through its meshing teeth, thereby adjusting the pitch angle of the photovoltaic panel 200.

[0075] Furthermore, in some embodiments, the X-axis active unit 330 further includes an X-axis reducer 334, which is disposed between the X-axis first mounting plate 311 and the X-axis motor 333. The X-axis reducer 334 is configured to reduce the rotation speed of the X-axis motor 333 until the X-axis motor 333 stops rotating after the X-axis motor 333 has rotated for a certain period of time according to the photoelectric signal, so as to rotate the photovoltaic panel 200 to the pitch angle corresponding to the photoelectric signal.

[0076] Specifically, in this embodiment, considering that the X-axis motor 333 will still rotate due to inertia when it stops running, this embodiment also sets the X-axis reducer 334 to adjust the speed of the X-axis motor 333 at a certain time point, so as to accurately adjust the photovoltaic panel 200 to the pitch angle corresponding to the photoelectric signal.

[0077] The tracking device also includes:

[0078] A Z-axis adjustment component 400 is disposed on the back surface of the photovoltaic panel 200 and on the side of the X-axis adjustment component 300 away from the photovoltaic panel 200. The Z-axis adjustment component 400 is configured to control the photovoltaic panel 200 to rotate horizontally according to the photoelectric signal. Specifically, in this embodiment, the Z-axis adjustment component 400 is used to adjust the photovoltaic panel 200 to rotate horizontally so that it is aligned with sunlight in the horizontal direction.

[0079] Furthermore, in some embodiments, the Z-axis adjustment assembly 400 includes:

[0080] Z-axis motor mounting plate 410, which is fixedly connected to the first X-axis mounting plate 311 and the second X-axis mounting plate 312 respectively;

[0081] Z-axis driven unit 420, the Z-axis driven unit 420 is fixedly connected to the side of the Z-axis motor mounting plate 410 away from the photovoltaic panel 200;

[0082] The Z-axis active unit 430 and the X-axis active unit 430 are disposed on both sides of the Z-axis motor mounting plate 410. The X-axis active unit 430 passes through the Z-axis motor mounting plate 410. The Z-axis active unit 430 is configured to rotate according to the photoelectric signal, driving the Z-axis driven unit 420 to rotate clockwise or counterclockwise in the horizontal direction.

[0083] Specifically, in this embodiment, the Z-axis motor mounting plate 410 is connected to the X-axis adjustment assembly 300. When there is an adjustment requirement, the Z-axis active unit 430 is activated, and the operation of the Z-axis active unit 430 drives the Z-axis driven unit 420 to move counterclockwise or clockwise in the horizontal direction, thereby adjusting the photovoltaic panel 200 to the optimal position in the horizontal direction.

[0084] Furthermore, in some embodiments, the X-axis driven unit 420 includes:

[0085] Z-axis driven gear shaft 421, the Z-axis driven gear shaft 421 is fixedly connected to the side of the Z-axis motor mounting plate 410 away from the photovoltaic panel 200;

[0086] Z-axis fixed gear 422, which is mounted on the Z-axis driven gear shaft 421;

[0087] The Z-axis active unit 430 includes:

[0088] Z-axis drive gear shaft 431, which penetrates the Z-axis motor mounting plate 410;

[0089] Z-axis drive gear 432 is disposed at the end of the Z-axis drive gear shaft 431 away from the photovoltaic panel 200, and the Z-axis drive gear 432 meshes with the Z-axis fixed gear 422;

[0090] Z-axis motor 433 is disposed on the side of the Z-axis motor mounting plate 410 near the photovoltaic panel 200. The end of the Z-axis drive gear shaft 431 near the photovoltaic panel 200 is connected to the Z-axis motor 433. The Z-axis motor 433 is configured to drive the Z-axis drive gear shaft 431 to rotate clockwise or counterclockwise in the horizontal direction according to the photoelectric signal.

[0091] Specifically, in this embodiment, when there is an adjustment requirement, the Z-axis motor 433 receives the broadcast signal sent by the light sensor group 100 and starts to operate. The operation of the Z-axis motor 433 drives the Z-axis drive gear shaft 431 and the Z-axis drive gear 432 disposed on the Z-axis drive gear shaft 431 to rotate. The Z-axis drive gear 432 drives the Z-axis fixed gear 422 to rotate through its meshing teeth. The Z-axis driven gear shaft 421 is fixedly connected to the bottom bracket 500, thereby driving the light sensor group 100, the photovoltaic panel 200 and the X-axis adjustment component 300 to rotate together, thereby adjusting the angle of the photovoltaic panel 200 in the horizontal direction.

[0092] Furthermore, in some embodiments, the Z-axis active unit 430 further includes a Z-axis reducer 434, which is disposed between the Z-axis motor 433 and the Z-axis motor mounting plate 410. The Z-axis reducer 434 is configured to reduce the rotation speed of the Z-axis motor 433 until the Z-axis motor 433 stops rotating after the Z-axis motor 433 has rotated for a certain period of time according to the photoelectric signal, so as to rotate the photovoltaic panel 200 to the horizontal angle corresponding to the photoelectric signal.

[0093] Specifically, in this embodiment, considering that the Z-axis motor 433 will still rotate due to inertia when it stops running, this embodiment also sets the Z-axis reducer 434 to reduce the speed of the Z-axis motor 433 at a certain time point, so as to accurately adjust the photovoltaic panel 200 to the horizontal angle corresponding to the photoelectric signal.

[0094] The bottom support 500 is connected at both ends to the Z-axis adjustment component 400 and the bottom surface, respectively. Specifically, in this embodiment, the bottom support 500 can not only assist the Z-axis adjustment component 400 in adjustment, but also avoid the problem of reduced equipment lifespan caused by the upper adjustment device contacting the bottom surface.

[0095] The advantages of this embodiment are as follows:

[0096] Improved power generation efficiency: The automatic tracking device for photovoltaic panels ensures that the panels are always under optimal sunlight conditions, thereby improving power generation efficiency and reducing energy waste.

[0097] Reduced operation and maintenance costs: The use of automatic tracking devices has greatly reduced the operation and maintenance costs of photovoltaic power generation systems, saving a lot of manpower and resources.

[0098] High adaptability: The device can adapt to various weather conditions and geographical environments, and has strong environmental adaptability.

[0099] High system reliability: The photovoltaic panel automatic tracking device adopts advanced automation technology, which ensures the stability and reliability of the system.

Claims

1. An automatic tracking device for photovoltaic panels, characterized in that, The tracking device includes: A light sensor group (100) having a plurality of light sensors, the light sensor group (100) being configured to acquire light intensity in multiple directions and convert the light intensity into photoelectric signals; A photovoltaic panel (200) includes a front-lighting surface and a back-lighting surface, and a light sensor group (100) is disposed at the edge of the front-lighting surface of the photovoltaic panel (200); An X-axis adjustment component (300) is disposed on the back surface of the photovoltaic panel (200) and configured to adjust the pitch angle of the photovoltaic panel (200) according to the photoelectric signal. A Z-axis adjustment component (400) is disposed on the back surface of the photovoltaic panel (200). The Z-axis adjustment component (400) is disposed on the side of the X-axis adjustment component (300) away from the photovoltaic panel (200). The Z-axis adjustment component (400) is configured to control the photovoltaic panel (200) to rotate in the horizontal direction according to the photoelectric signal. The bottom support (500) is connected at both ends to the Z-axis adjustment assembly (400) and the bottom surface, respectively.

2. The photovoltaic panel automatic tracking device according to claim 1, characterized in that, The light sensor group (100) includes a first light sensor (110), a second light sensor (120), a third light sensor (130), a fourth light sensor (140), and an extension plate (150). The first light sensor (110), the second light sensor (120), the third light sensor (130), and the fourth light sensor (140) are respectively disposed on the four edges of the extension plate (150) on the same side, and there is a gap between the first light sensor (110), the second light sensor (120), the third light sensor (130), and the fourth light sensor (140). The first light sensor (110), the second light sensor (120), the third light sensor (130) and the fourth light sensor (140) are all arranged in a direction perpendicular to the photovoltaic panel (200) and are all configured to acquire the light intensity in their respective directions.

3. The automatic tracking device for photovoltaic panels according to claim 1, characterized in that, The photovoltaic panel (200) includes a photovoltaic mounting bracket (210), which is disposed on the back surface of the photovoltaic panel (200). The photovoltaic mounting bracket (210) is connected to the photovoltaic panel (200) and the X-axis adjustment assembly (300) respectively, and the photovoltaic mounting bracket (210) is hinged to the X-axis adjustment assembly (300). The photovoltaic mounting bracket (210) includes a first support plate (211) and a second support plate (212), which are respectively connected to the back surface of the photovoltaic panel (200).

4. The photovoltaic panel automatic tracking device according to claim 3, characterized in that, The X-axis adjustment assembly (300) includes: X-axis mounting unit (310), which is rotatably connected to both ends of the photovoltaic mounting bracket (210), and which clamps the first support plate (211) and the second support plate (212); X-axis driven unit (320), the X-axis driven unit (320) is connected to the X-axis mounting unit (310), and the X-axis driven unit (320) is disposed between the first support plate (211) and the second support plate (212); The X-axis active unit (330) is rotatably connected to the X-axis driven unit (320). The X-axis active unit (330) is configured to rotate according to the photoelectric signal to drive the X-axis driven unit (320) to rotate, thereby adjusting the pitch angle of the photovoltaic panel (200).

5. The automatic tracking device for photovoltaic panels according to claim 4, characterized in that, The X-axis mounting unit (310) includes an X-axis first mounting plate (311) and an X-axis second mounting plate (312). The X-axis first mounting plate (311) is rotatably connected to the first support plate (211), and the X-axis second mounting plate (312) is rotatably connected to the second support plate (212).

6. The automatic tracking device for photovoltaic panels according to claim 5, characterized in that, The X-axis driven unit (320) includes: X-axis driven gear shaft (321), the X-axis driven gear shaft (321) is fixedly connected to the first support plate (211) and the second support plate (212) respectively, and the two ends of the X-axis driven gear shaft (321) are rotatably connected to the first X-axis mounting plate (311) and the second X-axis mounting plate (312) respectively; X-axis driven gear (322), the X-axis driven gear (322) is on the X-axis driven gear shaft (321), and the X-axis driven gear (322) is installed between the first support plate (211) and the second support plate (212); The X-axis active unit (330) includes: X-axis drive gear shaft (331), the X-axis drive gear shaft (331) passes through the X-axis first mounting plate (311); X-axis drive gear (332), the X-axis drive gear (332) is disposed on the X-axis drive gear shaft (331), the X-axis drive gear (332) is located between the X-axis first mounting plate (311) and the X-axis second mounting plate (312), the X-axis drive gear (332) meshes with the X-axis driven gear (322); An X-axis motor (333) is disposed on the side of the X-axis first mounting plate (311) away from the X-axis drive gear (332). The X-axis motor (333) is connected to the X-axis drive gear shaft (331). The X-axis motor (333) is configured to drive the X-axis drive gear shaft (331) to rotate clockwise or counterclockwise in the vertical direction according to the photoelectric signal.

7. The automatic tracking device for photovoltaic panels according to claim 6, characterized in that, The X-axis active unit (330) also includes an X-axis reducer (334), which is disposed between the X-axis first mounting plate (311) and the X-axis motor (333). The X-axis reducer (334) is configured to reduce the speed of the X-axis motor (333) until the X-axis motor (333) stops rotating after the photoelectric signal has been rotating for a certain period of time, so as to rotate the photovoltaic panel (200) to the pitch angle corresponding to the photoelectric signal.

8. The photovoltaic panel automatic tracking device according to claim 5, characterized in that, The Z-axis adjustment assembly (400) includes: Z-axis motor mounting plate (410), which is fixedly connected to the first X-axis mounting plate (311) and the second X-axis mounting plate (312) respectively; Z-axis driven unit (420), the Z-axis driven unit (420) is fixedly connected to the side of the Z-axis motor mounting plate (410) away from the photovoltaic panel (200); The Z-axis active unit (430) is disposed on both sides of the Z-axis motor mounting plate (410) and extends through the Z-axis motor mounting plate (410). The Z-axis active unit (430) is configured to rotate according to the photoelectric signal, thereby driving the Z-axis driven unit (420) to rotate clockwise or counterclockwise in the horizontal direction.

9. The automatic tracking device for photovoltaic panels according to claim 8, characterized in that, The Z-axis driven unit (420) includes: Z-axis driven gear shaft (421), the Z-axis driven gear shaft (421) is fixedly connected to the side of the Z-axis motor mounting plate (410) away from the photovoltaic panel (200); Z-axis fixed gear (422), the Z-axis fixed gear (422) is disposed on the Z-axis driven gear shaft (421); The Z-axis active unit (430) includes: Z-axis drive gear shaft (431), which passes through the Z-axis motor mounting plate (410); Z-axis drive gear (432), the Z-axis drive gear (432) is disposed at one end of the Z-axis drive gear shaft (431) away from the photovoltaic panel (200), the Z-axis drive gear (432) meshes with the Z-axis fixed gear (422); A Z-axis motor (433) is disposed on the side of the Z-axis motor mounting plate (410) near the photovoltaic panel (200). The Z-axis drive gear shaft (431) is connected to the Z-axis motor (433) at one end near the photovoltaic panel (200). The Z-axis motor (433) is configured to drive the Z-axis drive gear shaft (431) to rotate clockwise or counterclockwise in the horizontal direction according to the photoelectric signal.

10. The automatic tracking device for photovoltaic panels according to claim 9, characterized in that, The Z-axis active unit (430) further includes a Z-axis reducer (434), which is disposed between the Z-axis motor (433) and the Z-axis motor mounting plate (410). The Z-axis reducer (434) is configured to reduce the speed of the Z-axis motor (433) until the Z-axis motor (433) stops rotating after the Z-axis motor (433) has rotated for a certain period of time according to the photoelectric signal, so as to rotate the photovoltaic panel (200) to the horizontal angle corresponding to the photoelectric signal.

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