Photovoltaic panel folding device and photovoltaic energy storage system

Abstract

The utility model discloses a photovoltaic panel folding device and a photovoltaic energy storage system. The photovoltaic panel folding device comprises a folding mechanism, a supporting mechanism and a plurality of photovoltaic panels. The photovoltaic panels are sequentially distributed in the first direction and installed on the folding mechanism, the folding mechanism is used for folding or unfolding the photovoltaic panels, the supporting mechanism comprises a rotating assembly and an angle adjusting assembly, the rotating assembly is arranged below the folding mechanism and used for adjusting the azimuth angles of the photovoltaic panels, and the angle adjusting assembly is used for adjusting the angle of the photovoltaic panels. And the angle adjusting assembly is arranged between the rotating assembly and the folding mechanism and is used for adjusting the inclination angles of the plurality of photovoltaic panels. According to the photovoltaic panel folding device provided by the utility model, the plurality of photovoltaic panels are folded through the folding mechanism so as to facilitate storage and transportation, and the supporting mechanism is arranged below the folding mechanism, so that when the plurality of photovoltaic panels are unfolded, the azimuth angles and the inclination angles of the plurality of photovoltaic panels are adjusted so as to enable the plurality of photovoltaic panels to keep an optimal incident angle, and the photovoltaic panels can be folded conveniently. Reflection and refraction of solar rays are reduced, so that absorption efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy equipment, and in particular to a photovoltaic panel folding device and a photovoltaic energy storage system. Background Art

[0002] Photovoltaic panels are devices that use solar energy to generate electricity. They are composed of multiple solar cells that can convert sunlight into electrical energy. Photovoltaic panels have the advantages of being renewable and pollution-free, and are widely used in various fields, such as home, industry, agriculture, and transportation. In order to improve the portability and adaptability of photovoltaic panels, some photovoltaic panels adopt a folding structure, which can be easily stored and carried, and is suitable for use outdoors or in mobile occasions.

[0003] The structure of existing foldable photovoltaic panels generally includes a housing, a bracket and multiple photovoltaic panels. The housing is a component used to protect and fix the photovoltaic panel, which is generally made of plastic or metal and has the characteristics of being light, durable and waterproof. The bracket is used to support the photovoltaic panel, which is generally made of metal or plastic. The bracket has the characteristic of being foldable, and the photovoltaic panel is installed on the bracket. When in use, the user stretches the bracket to unfold the multiple photovoltaic panels to absorb sunlight and convert it into electrical energy.

[0004] However, existing foldable photovoltaic panels still have some shortcomings: since the angle of the photovoltaic panels is fixed and cannot be adjusted according to the position of the sun, the angle between the photovoltaic panels and the sunlight is different at different times and places, which affects the reception of sunlight, and thus makes the photovoltaic panels unable to fully absorb sunlight, reducing the power generation efficiency and economy. Utility Model Content

[0005] The main purpose of the utility model is to provide a photovoltaic panel folding device, aiming to solve the problem that the existing foldable photovoltaic panels cannot fully absorb sunlight.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a photovoltaic panel folding device, which comprises:

[0007] A plurality of photovoltaic panels are sequentially distributed along a first direction F;

[0008] A folding mechanism, the plurality of photovoltaic panels are mounted on the folding mechanism, and the folding mechanism is used to fold or unfold the plurality of photovoltaic panels;

[0009] A supporting mechanism, the supporting mechanism comprising:

[0010] A rotating assembly, disposed below the folding mechanism, and used to drive the folding mechanism to rotate;

[0011] The angle adjustment component is arranged between the rotating component and the folding mechanism, and is used for adjusting the tilt angle of the folding mechanism.

[0012] In some embodiments, the rotating assembly comprises:

[0013] An upper plate, wherein the angle adjustment assembly is disposed on a side of the upper plate facing the folding mechanism;

[0014] The lower plate is arranged on a side of the upper plate facing away from the angle adjustment assembly, and the lower plate is rotatably connected to the upper plate.

[0015] In some embodiments, the rotating assembly further includes a locking member, which is disposed on the upper disk and is used to lock the rotation angle between the upper disk and the lower disk.

[0016] In some embodiments, the rotating assembly comprises:

[0017] The driving member is arranged on a side of the lower disk body facing the upper disk body, and the execution end of the driving member is transmission-connected with the upper disk body for driving the upper disk body to rotate.

[0018] In some embodiments, the photovoltaic panel folding device further includes an electric control device, wherein the electric control device includes:

[0019] A sun tracking sensor, disposed on one of the plurality of photovoltaic panels, for detecting the azimuth and altitude angle of the sun;

[0020] A control main board is electrically connected to the sun tracking sensor, the driving component, and the angle adjustment component.

[0021] In some embodiments, the support mechanism further comprises:

[0022] A plurality of support columns are arranged on a side of the lower plate body facing away from the upper plate body, and one end of the plurality of support columns is movably connected to the lower plate body.

[0023] In some embodiments, the folding mechanism includes a plurality of groups of folding frames, which are relatively arranged on both sides of the plurality of photovoltaic panels and are used to flexibly connect the plurality of photovoltaic panels.

[0024] In some embodiments, the plurality of groups of folding frames each include a plurality of first folding rods and a plurality of second folding rods, and the plurality of first folding rods are hinged to the plurality of second folding rods.

[0025] In some embodiments, the photovoltaic panel folding device further includes a pull rod on the folding mechanism, and the pull rod is used for a user to pull the folding mechanism.

[0026] The utility model further provides a photovoltaic energy storage system, including a power storage device and the aforementioned photovoltaic panel folding device.

[0027] The beneficial effect of the technical solution of the utility model is that: by setting multiple photovoltaic panels on a folding mechanism, the folding mechanism can fold or unfold the multiple photovoltaic panels for easy storage and transportation, and by setting a support mechanism under the folding mechanism, when the multiple photovoltaic panels are in the unfolded state, it is used to adjust the azimuth and tilt angle of the multiple photovoltaic panels, so that the surfaces of the multiple photovoltaic panels are directly opposite to the sunlight, that is, the multiple photovoltaic panels maintain the best incident angle, and reduce the reflection and refraction of the sunlight on the surface of the photovoltaic panel. Compared with the existing folding photovoltaic panels, the photovoltaic panel folding device of the utility model folds the multiple photovoltaic panels through the folding mechanism for easy storage and transportation, and then by setting a support mechanism under the folding mechanism, when the multiple photovoltaic panels are in the unfolded state, it is used to support the multiple photovoltaic panels, and adjust the azimuth and tilt angle of the multiple photovoltaic panels, so that the multiple photovoltaic panels maintain the best incident angle, so that the reflection and refraction of the sunlight on the surface of the photovoltaic panel can be reduced to increase the absorption efficiency of the sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of an embodiment of the photovoltaic panel folding device of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the photovoltaic panel folding device in the extended state according to an embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of module electrical connections of an embodiment of a photovoltaic panel folding device of the present invention.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the scheme in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0035] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] If the photovoltaic panel is perpendicular to the sunlight, the reception effect is the best; if the photovoltaic panel is parallel to the sunlight, the reception effect is the worst. Therefore, the utility model proposes a photovoltaic panel folding device, which is mainly used to fold or unfold multiple photovoltaic panels 100 and adjust the azimuth angle and tilt angle of multiple photovoltaic panels 100.

[0037] like Figure 1 and Figure 2 As shown, the photovoltaic panel folding device proposed by the utility model includes a folding mechanism 200, a supporting mechanism 300 and a plurality of photovoltaic panels 100, wherein:

[0038] The plurality of photovoltaic panels 100 are sequentially distributed along the first direction F. As a component for converting solar energy into electrical energy, the photovoltaic panel can be made into various shapes for easy transportation, such as setting the photovoltaic panel to a square, a circle, etc., which is not particularly limited here.

[0039] The folding mechanism 200, on which the plurality of photovoltaic panels 100 are mounted, is used to fold or unfold the plurality of photovoltaic panels 100; it should be noted that the folding mechanism 200 in this embodiment is made of plastic material, which helps to reduce the overall weight and is convenient for users to carry. Of course, in some embodiments, it can be made of metal material, which is suitable for fixed installation.

[0040] The supporting mechanism 300 comprises:

[0041] The rotating assembly 301 is arranged below the folding mechanism 200 and is used to drive the folding mechanism 200 to rotate. It should be noted that the rotating assembly 301 in this embodiment can be manually rotated to adjust the azimuth of the photovoltaic panel 100 so that the surface of the photovoltaic panel 100 always faces the sun. Of course, in other embodiments, it can also be driven by a driving device, such as a stepping motor or a servo motor. In this way, automatic and precise adjustment can be achieved so that the photovoltaic panel 100 faces the sun, which is conducive to the photovoltaic panel 100 to better absorb sunlight.

[0042] The angle adjustment component 302 is disposed between the rotating component 301 and the folding mechanism 200, and is used to adjust the tilt angle of the folding mechanism 200. The angle adjustment component 302 can adjust the photovoltaic panel 100 to the optimal tilt angle according to different seasons and geographical locations, and maximize the annual total radiation on the tilt surface of the photovoltaic panel 100. In this embodiment, the use of the rotating component 301 and the angle adjustment mechanism can enable the photovoltaic panel 100 to maintain the optimal azimuth and tilt angle at any time, so that the photovoltaic panel 100 can achieve the highest power generation efficiency. Compared with fixed photovoltaic panels, the power generation can be increased by about 20% to 40%. In addition, the angle adjustment component 302 in this embodiment is preferably driven by a motor. Of course, in other embodiments, a universal shaft adjustment method can be used, which is not particularly limited here.

[0043] During use of the photovoltaic panel folding device in this embodiment, the user operates the photovoltaic panel folding device to extend, thereby converting the multiple photovoltaic panels 100 from a folded state to an unfolded state. At this time, the support mechanism 300 stably supports the folding mechanism 200 and the multiple photovoltaic panels 100. The unfolded multiple photovoltaic panels 100 absorb sunlight to convert solar energy into electrical energy, and store the electrical energy in the power storage device for user use.

[0044] As time goes by, the position of the sun will change accordingly. At this time, the sun tracking sensor detects the position and light intensity of the sun, and feeds the signal back to the control mainboard 303b, which calculates and displays the azimuth and tilt angle that need to be adjusted. At this time, the user can manually operate the folding mechanism 200 according to the displayed azimuth parameter and tilt angle parameter; of course, in other embodiments, the control mainboard 303b controls the movement of the rotating component 301 while calculating the adjusted azimuth and tilt angle parameters to achieve automatic adjustment. That is, the position and light of the sun are detected in real time, and the rotating component 301 is controlled in real time to adjust, so that the photovoltaic panel 100 always faces the sun, maintains the best incident angle, reduces the reflection and refraction of light on the surface of the photovoltaic panel 100, and thus increases the light absorption efficiency.

[0045] The photovoltaic panel folding device of the present embodiment arranges a plurality of photovoltaic panels 100 on a folding mechanism 200. The folding mechanism 200 can fold or unfold the plurality of photovoltaic panels 100 for storage and transportation. A supporting mechanism 300 is arranged below the folding mechanism 200. When the plurality of photovoltaic panels 100 are in an unfolded state, the supporting mechanism 300 is used to adjust the azimuth and inclination angles of the plurality of photovoltaic panels 100 so that the surfaces of the plurality of photovoltaic panels 100 face the sunlight, that is, the plurality of photovoltaic panels 100 maintain an optimal incident angle, thereby reducing reflection and refraction of sunlight on the surface of the photovoltaic panel 100. Compared to the existing foldable photovoltaic panels, the photovoltaic panel folding device of the present embodiment folds a plurality of photovoltaic panels 100 through a folding mechanism 200 for easy storage and transportation, and then sets a supporting mechanism 300 under the folding mechanism 200. When the plurality of photovoltaic panels 100 are in an unfolded state, the supporting mechanism 300 is used to support the plurality of photovoltaic panels 100, and to adjust the azimuth and inclination angles of the plurality of photovoltaic panels 100 so that the plurality of photovoltaic panels 100 maintain an optimal incident angle. In this way, the reflection and refraction of sunlight on the surface of the photovoltaic panel 100 can be reduced to increase the absorption efficiency of sunlight.

[0046] Continue reading Figure 2 In this embodiment, the rotating assembly 301 is realized by a rotating connection between an upper disk body 301a and a lower disk body 301b. Specifically, the rotating assembly 301 includes an upper disk body 301a, an angle adjustment assembly 302 is arranged on a side of the upper disk body 301a facing the folding mechanism 200; and a lower disk body 301b is arranged on a side of the upper disk body 301a facing away from the angle adjustment assembly 302, and the lower disk body 301b is rotatably connected to the upper disk body 301a. It should be noted that in this embodiment, a locking member 301c is arranged on one of the upper disk body 301a and the lower disk body 301b. After multiple users have adjusted the azimuth angles of multiple photovoltaic panels 100, the locking member 301c can be operated to lock the current azimuth angle to prevent the wind force generated outdoors from causing the multiple photovoltaic panels 100 to sway in the wind, so that the multiple photovoltaic panels 100 can be stably maintained at the preset azimuth angles.

[0047] Furthermore, a concentric shaft is provided between the upper plate 301a and the lower plate 301b to ensure the concentricity and verticality between the upper plate 301a and the lower plate 301b, and avoid eccentricity, tilting and other phenomena that affect the stability and accuracy of rotation. In order to improve the smoothness of rotation between the upper plate 301a and the lower plate 301b, a ball joint, a rolling bearing, a sliding bearing and the like are used, which are not particularly limited here.

[0048] In order to improve the solar light absorption efficiency of photovoltaic panels, the azimuth and inclination angles of multiple photovoltaic panels 100 can be automatically adjusted. Specifically, the rotating component 301 includes a driving member 301d, and the driving member 301d is arranged on the side of the lower disk 301b facing the upper disk 301a. The execution end of the driving member 301d is transmission-connected to the upper disk 301a for driving the upper disk 301a to rotate. It should be noted that the driving member 301d in this embodiment can be a stepping motor or a servo motor.

[0049] In addition, the driving member 301d can be of two types: single-axis tracking and dual-axis tracking. The single-axis tracking can make the photovoltaic panel 100 rotate in one direction, and the dual-axis tracking can make the photovoltaic panel 100 rotate in two directions, so as to align with the sun more accurately.

[0050] During use of the photovoltaic panel folding device of this embodiment, first, the folding mechanism 200 is operated to put the multiple photovoltaic panels 100 in an unfolded state, and the sun tracking sensor 303a starts to work. By using the characteristics of photoelectric elements such as photoresistors, phototubes, and photodiodes that the resistance or current changes when illuminated, the deviation signal is output by comparing the light intensity received by two or more photosensitive elements and feeding it back to the control main board 303b. The control main board 303b calculates the azimuth angle and tilt angle parameters based on the signal, and controls the driving member 301d to drive the upper disk body 301a to rotate based on the parameters, and cooperates with the angle adjustment component 302 to adjust the azimuth angle and tilt angle of the multiple photovoltaic panels 100, so that the surface of the photovoltaic panel 100 automatically faces the direction of the sun, maintains the optimal incident angle, reduces the reflection and refraction of light on the surface of the photovoltaic panel, and increases the absorption efficiency.

[0051] In another embodiment, the user can also remotely monitor and adjust the azimuth and tilt angle of multiple photovoltaic panels 100 on the mobile terminal APP. Specifically, the photovoltaic panel folding device includes a communication module, which is electrically connected to the control main board 303b. During use, the user can understand the working status of the photovoltaic panel in real time through the mobile terminal APP, such as the azimuth, tilt angle, voltage, current, power, temperature, etc. of the photovoltaic panel, so that the user can find and handle faults in time and improve the operating efficiency and safety of the photovoltaic panel. In addition, there is no need for on-site inspection and maintenance, saving manpower and material costs.

[0052] In one embodiment, the photovoltaic panel folding device further includes an electric control device 303, such as Figure 3 As shown, the electronic control device 303 includes:

[0053] The sun tracking sensor 303a is provided on one of the multiple photovoltaic panels 100 and is used to detect the azimuth and altitude of the sun. It should be noted that the sun tracking sensor 303a can be a photoelectric tracking sensor or a solar motion track tracking sensor. The photoelectric tracking sensor uses the characteristics of photoelectric elements such as photoresistors, phototubes, and photodiodes, which change in resistance or current when illuminated. By comparing the light intensity received by two or more photosensitive elements, the sensor outputs a deviation signal and drives the motor or actuator to adjust the azimuth and altitude of the photovoltaic panel 100. This method has high sensitivity and simple structure.

[0054] The apparent solar motion trajectory tracking is to calculate the azimuth and altitude of the sun at any time according to the movement law of the sun, and control the rotating component 301 and the angle adjustment component 302 to rotate according to the preset trajectory through control elements such as timers, encoders, and microprocessors. This method is not affected by weather and has high accuracy.

[0055] See also Figure 3 In this embodiment, the control main board 303b is electrically connected to the sun tracking sensor 303a, the driving member 301d, and the angle adjustment component 302.

[0056] The photovoltaic panel folding device of the present embodiment detects the azimuth and altitude of the sun through the sun tracking sensor 303a, and feeds back to the control main board 303b. The control main board 303b calculates the azimuth and tilt angle that need to be adjusted for the photovoltaic panel based on the feedback data, so as to realize automatic and precise control, so that the photovoltaic panel is always at the optimal incident angle, thereby improving the absorption efficiency of the photovoltaic panel.

[0057] See also Figure 1 and Figure 2 In this embodiment, the support mechanism 300 includes a plurality of support columns 304, and the plurality of support columns 304 are arranged on the side of the lower disk 301b facing away from the upper disk 301a, and one end of the plurality of support columns 304 is movably connected to the lower disk 301b. It should be noted that the plurality of support columns 304 in this embodiment are detachable, and the number of support columns can be three, four, etc., which is not particularly limited here. In other words, the plurality of support columns 304 can be increased or decreased accordingly according to actual needs. For example, when used outdoors, three support columns can be installed to support the photovoltaic panel. When it needs to be fixed on the roof of the house or on the ground, the bottom plate is locked on the hardened surface with expansion bolts, and then the plurality of support columns 304 are removed, and the lower disk 301b is directly fixedly connected to the bottom plate. It can be applied to different scenarios for flexible use by users.

[0058] Continue reading Figure 2In this embodiment, the folding mechanism 200 includes a plurality of folding frames 201. Specifically, the plurality of folding frames 201 are relatively arranged on both sides of the plurality of photovoltaic panels 100, and are used to flexibly connect the plurality of photovoltaic panels 100. The plurality of folding frames 201 can be extended and retracted along the first direction F; further, each folding frame includes a plurality of first folding rods 202 and a plurality of second folding rods 203, and the plurality of first folding rods 202 and the second folding rods form a "diamond shape", and the two cooperate to flexibly connect the plurality of photovoltaic panels 100, wherein the middle parts of the plurality of first folding rods 202 and the plurality of second folding rods 203 are hinged by hinge shafts, and the hinge shafts extend into the interior of the photovoltaic panel 100; when folding or unfolding, the photovoltaic panel 100 can rotate relative to the plurality of first folding rods 202 and the plurality of second folding rods 203, so that the plurality of photovoltaic panels 100 can be folded.

[0059] For more details, see Figure 2 In this embodiment, the ends of the plurality of first folding rods 202 are hinged with the ends of the plurality of second folding rods 203, and the middle parts of the plurality of first folding rods 202 are hinged with the middle parts of the plurality of second folding rods 203 to form a plurality of folding frames 201. The plurality of photovoltaic panels 100 are rotatably arranged at the middle hinges of the plurality of first folding rods 202 and the plurality of second folding rods 203.

[0060] In another embodiment, connection portions are reserved at the ends of the plurality of first folding rods 202 and the plurality of second folding rods 203 to facilitate the subsequent addition of folding rods (ie, the plurality of first folding rods 202 and the plurality of second folding rods 203 ) to add photovoltaic panels 100 .

[0061] To facilitate the user to operate the folding mechanism 200, a pull rod 204 can be set on the folding mechanism 200. Specifically, the pull rods 204 at both ends are connected to two groups of folding frames set on both sides of the photovoltaic panel, and the two ends of the pull rod 204 are rotatably connected to the two groups of folding frames. When it is necessary to stand and use multiple photovoltaic panels 100, first open the multiple support columns 304 and place the photovoltaic panel folding device steadily on the ground. Then, the user can hold the pull rod 204 and pull it along the first direction F to drive the multiple groups of folding frames 201 to unfold. When pulled to the preset position, the multiple photovoltaic panels 100 can complete the unfolding action, which is very convenient.

[0062] The utility model further proposes a photovoltaic energy storage system, which includes a power storage device and a photovoltaic panel folding device. The specific structure of the photovoltaic panel folding device refers to the above-mentioned embodiment. Since the photovoltaic energy storage system adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the technical effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. It should be noted that in the present embodiment, only the independent setting of the power storage device is taken as an example. Of course, in other embodiments, the power storage device can be integrated with the photovoltaic panel folding device, that is, the power storage device is arranged inside the photovoltaic panel folding device, so that the overall structure is compact and convenient for users to carry. The photovoltaic energy storage system of this embodiment absorbs sunlight through multiple photovoltaic panels 100, converts it into electrical energy, and stores it in the power storage device to supply power to electrical appliances, which is very convenient.

[0063] In another embodiment, the power storage device further includes an inverter. When the user uses an AC-powered electrical appliance, the inverter can convert the DC power of the power storage device into AC power, which is very convenient.

[0064] The above description is only a partial or preferred embodiment of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the overall concept of the present invention, or direct / indirect application in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A photovoltaic panel folding device, characterized in that: include: A plurality of photovoltaic panels are sequentially distributed along a first direction; A folding mechanism, the plurality of photovoltaic panels are mounted on the folding mechanism, and the folding mechanism is used to fold or unfold the plurality of photovoltaic panels; A supporting mechanism, the supporting mechanism comprising: A rotating assembly, disposed below the folding mechanism, for adjusting the azimuth angles of the plurality of photovoltaic panels; An angle adjustment component is arranged between the rotating component and the folding mechanism, and is used to adjust the tilt angles of the multiple photovoltaic panels.

2. The photovoltaic panel folding device according to claim 1, characterized in that: The rotating assembly comprises: An upper plate, wherein the angle adjustment assembly is disposed on a side of the upper plate facing the folding mechanism; The lower plate is arranged on a side of the upper plate facing away from the angle adjustment assembly, and the lower plate is rotatably connected to the upper plate.

3. The photovoltaic panel folding device according to claim 2, characterized in that: The rotating assembly further comprises a locking member, which is arranged on the upper disk and is used to lock the rotation angle between the upper disk and the lower disk.

4. The photovoltaic panel folding device according to claim 2, characterized in that: The rotating assembly comprises: The driving member is arranged on a side of the lower disk body facing the upper disk body, and the execution end of the driving member is transmission-connected with the upper disk body for driving the upper disk body to rotate.

5. The photovoltaic panel folding device according to claim 4, characterized in that: It also includes an electric control device, the electric control device comprising: A sun tracking sensor, disposed on one of the plurality of photovoltaic panels, for detecting the azimuth and altitude angle of the sun; A control main board is electrically connected to the sun tracking sensor, the driving component, and the angle adjustment component.

6. The photovoltaic panel folding device according to claim 2, characterized in that: The support mechanism also includes: A plurality of support columns are arranged on a side of the lower plate body facing away from the upper plate body, and one end of the plurality of support columns is movably connected to the lower plate body.

7. The photovoltaic panel folding device according to claim 2, characterized in that: The folding mechanism comprises a plurality of folding frames, which are arranged on both sides of the plurality of photovoltaic panels relatively to each other and are used for movably connecting the plurality of photovoltaic panels.

8. The photovoltaic panel folding device according to claim 7, characterized in that: The multiple groups of folding frames each include a plurality of first folding rods and a plurality of second folding rods, and the plurality of first folding rods are hinged to the plurality of second folding rods.

9. The photovoltaic panel folding device according to claim 1, characterized in that: A pull rod is also provided on the folding mechanism, and the pull rod is used for a user to pull the folding mechanism.

10. A photovoltaic energy storage system, characterized in that: It comprises a power storage device and a photovoltaic panel folding device as described in any one of claims 1-9.

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