Photovoltaic device

Abstract

The invention discloses a photovoltaic device, and belongs to the technical field of photovoltaics. The photovoltaic device comprises a base, a solar panel and a driving mechanism, the solar panel is rotatably connected with the base, and the driving mechanism is arranged on the base, connected with the solar panel and used for driving the solar panel to rotate. According to the scheme, the solar panel is rotatably connected with the base, and the solar panel is driven to rotate through the driving mechanism, so that the orientation and angle of the solar panel can be conveniently adjusted, the orientation and angle of the solar panel can adapt to the position of the sun, and the solar energy absorption rate of the solar panel can be effectively improved; therefore, the power generation efficiency of the photovoltaic device is improved.

Description

Technical Field

[0001] The present application belongs to the field of photovoltaic technology, and specifically relates to a photovoltaic device. Background Art

[0002] A photovoltaic device is a power generation device that uses the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy.

[0003] The solar panels of existing photovoltaic devices are generally fixed on support poles, resulting in that the direction and angle of the solar panels cannot be adjusted relative to the support poles. When the direction and angle of the solar panels need to be adjusted, the photovoltaic device can only be moved as a whole to change the direction and angle of the solar panels, thereby changing the solar energy absorption rate of the solar panels. However, this adjustment method cannot change the direction and angle of the solar panels conveniently and labor-savingly, and is likely to cause inconvenience to the staff.

[0004] Therefore, the existing photovoltaic devices have the defect that the direction and angle of the solar panel are difficult to adjust. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a photovoltaic device that can solve the problem in the related art that the orientation and angle of the solar panels of the photovoltaic device are difficult to adjust.

[0006] The present application provides a photovoltaic device, including: Base; A solar panel rotatably connected to the base; The driving mechanism is arranged on the base, connected to the solar panel and used for driving the solar panel to rotate.

[0007] In the embodiment of the present application, by rotatably connecting the solar panel to the base and driving the solar panel to rotate through a driving mechanism, the orientation and angle of the solar panel can be conveniently adjusted so that the orientation and angle of the solar panel can adapt to the position of the sun, thereby effectively improving the solar panel's absorption rate of solar energy, thereby improving the power generation efficiency of the photovoltaic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is one of the three-dimensional diagrams of the photovoltaic device disclosed in the embodiment of the present application; Figure 2 This is one of the connection relationship diagrams between the solar panel and the base disclosed in the embodiment of the present application; Figure 3 is a position relationship diagram of a solar panel and a cleaning device disclosed in an embodiment of the present application; Figure 4This is the second connection diagram between the solar panel and the base disclosed in the embodiment of the present application (the second part of the solar panel is hidden); Figure 5 This is the third diagram of the connection relationship between the solar panel and the base disclosed in the embodiment of the present application (the second part of the solar panel is hidden); Figure 6 yes Figure 5 A magnified view of part A; Figure 7 is a connection diagram of the driving mechanism and the solar panel disclosed in the embodiment of the present application; Figure 8 is a diagram showing the position relationship between the angle indicating mechanism and the solar panel disclosed in the embodiment of the present application; Fig. 9 yes Figure 8 A magnified view of part B; Fig.10 This is the second stereoscopic diagram of the photovoltaic device disclosed in the embodiment of the present application; Fig.11 It is a schematic diagram of the structure of the liquid spraying assembly disclosed in the embodiment of the present application.

[0009] Description of reference numerals: 100-base; 110-base frame; 120-support plate; 121-support plate; 200-solar panel; 201-first main board; 202-second main board; 203-connecting board; 204-avoidance groove; 210-first part; 220-second part; 230-slide rail; 300-rotating shaft; 310-slot; 301-end plate; 400-driving mechanism; 410- telescopic driving member; 420- sliding block; 430- connecting block; 500- buckle mechanism; 510- fixing block; 520-card; 530-first elastic member; 600-angle indicating mechanism; 610-angle plate; 611-through hole; 620-handle; 630-angle indicating assembly; 631-indicating block; 6311-indicating portion; 6312-connecting portion; 632-guide block; 6321-guide surface; 640-second elastic member; 700-cleaning mechanism; 710-cleaning member; 711-first cleaning member; 712-second cleaning member; 720-cleaning driving member; 721-first cleaning driving member; 722-second cleaning drive member; 800-liquid spraying mechanism; 810-liquid storage barrel; 820-liquid spraying assembly; 801-first liquid spraying assembly; 802-second liquid spraying assembly; 821-liquid spraying cylinder; 8211-liquid spraying chamber; 822-spray nozzle; 823-push block; 824-pull rope; 825-third elastic member; 830-connecting pipe; 831- one-way valve; 900- temperature control mechanism; 910- semiconductor cooling plate; 920- power supply component. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0011] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0012] The photovoltaic device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0013] refer to Figure 1-Figure 11 A photovoltaic device provided in an embodiment of the present application may include a base 100, a solar panel 200 and a driving mechanism 400. The solar panel 200 is rotatably connected to the base 100. The driving mechanism 400 may be disposed on the base 100, and the driving mechanism 400 may be connected to the solar panel 200 and may be used to drive the solar panel 200 to rotate.

[0014] With such an arrangement, by rotatably connecting the solar panel 200 to the base 100 and driving the solar panel 200 to rotate through the driving mechanism 400, the orientation and angle of the solar panel 200 can be conveniently adjusted so that the orientation and angle of the solar panel 200 can adapt to the position of the sun, thereby effectively improving the solar panel 200's absorption rate of solar energy, thereby improving the power generation efficiency of the photovoltaic device.

[0015] Optionally, the photovoltaic device may further include a solar position measuring element, which may be communicatively connected to the driving mechanism 400. The driving mechanism 400 may drive the solar panel 200 to rotate according to the signal of the solar position measuring element, so that the solar panel 200 can rotate with the position of the sun, and then adapt to the position of the sun, thereby improving the solar panel 200's absorption rate of solar energy.

[0016] Here, the photovoltaic device may also include a control system, which may be respectively connected to communicate with the sun position measuring element and the driving mechanism 400, the sun position measuring element may transmit a signal to the control system, and the control system may control the action of the driving mechanism 400 so that the driving mechanism 400 drives the solar panel 200 to rotate.

[0017] In one embodiment, the solar position measuring element may be a solar sensor, which can detect the position of the sun and transmit the detected solar position signal to the control system, so that the control system controls the driving mechanism 400 to drive the solar panel 200 to rotate to a corresponding position. In another embodiment, the solar position measuring element may be a clock, and the approximate position of the sun can be known through the time of the clock, so that the control system controls the driving mechanism 400 to drive the solar panel 200 to rotate to a corresponding position.

[0018] In an optional embodiment of the present application, the solar panel 200 can be rotatably connected to the base 100 via a rotating shaft 300. Specifically, the solar panel 200 can be symmetrical relative to the axis of the rotating shaft 300, which is helpful to improve the balance of the solar panel 200 during rotation.

[0019] Optionally, the base 100 may include a base frame 110 and two support plates 120, and the two support plates 120 may be connected to the base frame 110. Specifically, the two support plates 120 may be connected to the base frame 110 through support plates 121. The two support plates 120 may be located on opposite sides of the solar panel 200, and the two support plates 120 may be rotatably connected to the shaft 300, so that the support effect on the shaft 300 can be improved, thereby improving the support effect on the solar panel 200; and the two support plates 120 may be respectively arranged close to both ends of the shaft 300, so that the area of ​​the solar panel 200 can be larger to improve the light absorption rate of the solar panel 200.

[0020] The photovoltaic device may further include a snap mechanism 500, which may include a fixed block 510, a first elastic member 530 and a snap member 520, wherein the fixed block 510 may be connected to the base 100, specifically, the fixed block 510 may be connected to the support plate 120, a plurality of snap slots 310 may be provided on one of the fixed block 510 and the first end of the rotating shaft 300, the other of the fixed block 510 and the first end of the rotating shaft 300 may be connected to the first end of the first elastic member 530, the second end of the first elastic member 530 may be connected to the snap member 520, and the snap member 520 may be embedded in the snap slot 310. Here, the snap slots 310 may be distributed at intervals along the circumference of the rotating shaft 300. In this way, when the solar panel 200 is rotated to the desired position, the rotating shaft 300 can be clamped by the engagement of the clamping member 520 and the clamping slot 310, so as to limit the rotating shaft 300 and prevent the rotating shaft 300 from continuing to rotate, so as to clamp the solar panel 200 connected to the rotating shaft 300, and then the solar panel 200 is fixed in the current position, thereby preventing the solar panel 200 from rotating at will after the angle adjustment is completed.

[0021] It should be noted that a plurality of slots 310 may correspond to a plurality of rotation gears. Specifically, when the card 520 is disengaged from a slot 310 and rotates with the shaft 300 to a position where it is embedded in the next slot 310, the solar panel 200 rotates one rotation gear.

[0022] In this embodiment, a plurality of slots 310 may be provided on the first end of the rotating shaft 300. Specifically, the first end of the rotating shaft 300 may be provided with an end plate 301, and the slots 310 may be provided on the end plate 301. The fixing block 510 may be provided with a mounting groove for mounting the first elastic member 530. The first end of the first elastic member 530 may be connected to the bottom of the mounting groove, and the second end of the first elastic member 530 may extend out of the mounting groove. It should be noted that when the clamping member 520 is not opposite to the slot 310, the clamping member 520 may be retracted in the mounting groove.

[0023] Optionally, the snap mechanism 500 may include a plurality of snap members 520 and a plurality of first elastic members 530, each snap member 520 may be respectively connected to the second end of each first elastic member 530, and each snap member 520 may be respectively embedded in each slot 310, so as to help balance the forces between the rotating shaft 300 and the fixed block 510, and may also improve the stability of limiting the rotating shaft 300, thereby improving the locking effect of the solar panel 200.

[0024] Further optionally, in order to facilitate the clamping member 520 to enter and exit the clamping slot 310 , the clamping member 520 may be a spherical structure.

[0025] In other embodiments, the photovoltaic device may not include the snap mechanism 500 .

[0026] In an optional embodiment of the present application, the photovoltaic device may further include an angle indicating mechanism 600 , and the angle indicating mechanism 600 may include an angle plate 610 , a turning handle 620 , and an angle indicating assembly 630 .

[0027] The angle plate 610 may be located at one side of the solar panel 200 and may be connected to the base 100. A plurality of angle marks distributed at intervals may be provided on the side of the angle plate 610 facing away from the solar panel 200 to indicate the rotation angle of the solar panel 200. In addition, a plurality of through holes 611 may be provided on the angle plate 610. Each through hole 611 may be distributed at intervals along the circumference of the rotating shaft 300, and each through hole 611 may correspond to each angle mark one by one.

[0028] The handle 620 may be located between the angle plate 610 and the solar panel 200 , and the handle 620 may be connected to the second end of the shaft 300 so as to be able to rotate synchronously with the shaft 300 . Here, the handle 620 may be located between the angle plate 610 and the support plate 120 .

[0029] When the handle 620 is rotated to a position corresponding to the through hole 611, the handle 620 can drive the angle indicator assembly 630 to pass through the through hole 611 and protrude from the side of the angle plate 610 facing away from the solar panel 200. In this way, the angle indicator assembly 630 passing through the through hole 611 can play a role in indicating the rotation angle of the solar panel 200 on the angle plate 610, so that the staff can observe the rotation angle of the solar panel 200 through the angle indicator assembly 630 passing through the through hole 611 and the angle mark on the angle plate 610, thereby facilitating the staff to adjust the rotation angle of the solar panel 200.

[0030] Here, each through hole 611 may also correspond to each slot 310 one by one, so that the angle corresponding to each rotation gear of the solar panel 200 can be clearly seen.

[0031] In other embodiments, the photovoltaic device may not include the angle indicating mechanism 600. Specifically, the photovoltaic device may include an angle sensor, which may be connected to the rotating shaft 300 and used to detect the rotation angle of the rotating shaft 300. The angle sensor may be communicatively connected to the above-mentioned control system to transmit the detected angle information to the control system, and the control system may be communicatively connected to a mobile terminal or a computer to transmit the angle information to the mobile terminal or the computer, so that the operator can know the rotation angle of the solar panel 200 without going to the site.

[0032] In an optional embodiment, a plurality of angle indicating assemblies 630 may be provided, each angle indicating assembly 630 may be respectively arranged opposite to each through hole 611, and the rotating handle 620 may respectively contact each angle indicating assembly 630 and may respectively drive each angle indicating assembly 630 to pass through each through hole 611. In this way, when the rotating handle 620 rotates to a desired position along with the rotating shaft 300, the rotating handle 620 may contact the angle indicating assembly 630 at the corresponding position and drive the angle indicating assembly 630 to pass through the through hole 611 and protrude from the side of the angle plate 610 facing away from the solar panel 200, so as to facilitate observation by the operator.

[0033] The angle indicating mechanism 600 may further include a plurality of second elastic members 640, the first end of each second elastic member 640 may be connected to a side of the angle plate 610 close to the solar panel 200, the second end of each second elastic member 640 may be connected to each angle indicating assembly 630, and each second elastic member 640 may be used to drive each angle indicating assembly 630 to reset. In this way, when the handle 620 is away from the angle indicating assembly 630, the second elastic member 640 may drive the angle indicating assembly 630 to return to the initial position, that is, the angle indicating assembly 630 no longer passes through the through hole 611.

[0034] In an optional embodiment, each angle indicating assembly 630 may include an indicating block 631 and a guide block 632, the first end of the indicating block 631 may pass through the through hole 611, the second elastic member 640 may be sleeved outside the indicating block 631, the first end of the guide block 632 may be connected to the second end of the indicating block 631, the second end of the second elastic member 640 may be connected to the first end of the guide block 632, the second end of the guide block 632 may contact the rotating handle 620, and the guide blocks 632 may be provided with guide surfaces 6321 on both sides of the rotating direction of the rotating handle 620, along the indicating block 631, the second end of the second elastic member 640 may be connected to the first end of the guide block 632, the second end of the guide block 632 may contact the rotating handle 620, and the guide surfaces 6321 may be provided on both sides of the guiding block 632 in the rotating direction of the rotating handle 620. In the direction from the indicator block 631 to the guide block 632, the two guide surfaces 6321 can be close to each other, and the handle 620 can contact the guide surface 6321, so that the guide surface 6321 can guide the angle indicator assembly 630. Specifically, when the handle 620 contacts the guide surface 6321, the handle 620 continues to rotate. Due to the guiding effect of the guide surface 6321, the handle 620 can drive the angle indicator assembly 630 to move away from the handle 620, so that the indicator block 631 can pass through the through hole 611 and protrude from the side of the angle plate 610 away from the solar panel 200. Of course, the guide surface 6321 may not be provided on both sides of the guide block 632 located in the rotation direction of the handle 620.

[0035] Here, the indicating block 631 may include an indicating portion 6311 and a connecting portion 6312, the two ends of the connecting portion 6312 are respectively connected to the indicating portion 6311 and the guide portion, the second elastic member 640 may be sleeved on the connecting portion 6312, and the indicating portion 6311 may pass through the through hole 611 and protrude from the side of the angle plate 610 facing away from the solar panel 200.

[0036] In other embodiments, only one angle indicating assembly 630 may be provided, the angle indicating assembly 630 may be connected to the handle 620, and the angle indicating assembly 630 may pass through each through hole 611. The angle indicating mechanism 600 may also include only one second elastic member 640, the first end of the second elastic member 640 is connected to the handle 620, and the second end of the second elastic member 640 is connected to the angle indicating assembly 630. When the handle 620 rotates to a position corresponding to the through hole 611, the angle indicating assembly 630 may pass through the through hole 611 and protrude from a side of the angle plate 610 away from the solar panel 200, so as to indicate the rotation angle of the solar panel 200 on the angle plate 610. Optionally, the angle indicating assembly 630 may be provided with inclined surfaces on both sides of the rotation direction of the handle 620, and the two inclined surfaces may be close to each other along the direction from the handle 620 to the angle indicating assembly 630, so as to facilitate the angle indicating assembly 630 to be removed from the through hole 611.

[0037] In an optional embodiment of the present application, the driving mechanism 400 may include a slider 420 and a telescopic driving member 410. A slide rail 230 may be provided on the solar panel 200. The extension direction of the slide rail 230 may be perpendicular to the rotation axis of the solar panel 200, and the slider 420 may be slidably connected to the slide rail 230. One end of the telescopic driving member 410 may be rotatably connected to the base 100, and the other end of the telescopic driving member 410 may be rotatably connected to the slider 420. The telescopic driving member 410 may be used to drive the slider 420 to slide along the slide rail 230 to realize the rotation of the solar panel 200.

[0038] In this embodiment, the telescopic rod of the telescopic driving member 410 can be rotatably connected to the slider 420 through the connecting block 430. Specifically, the telescopic rod of the telescopic driving member 410 is rotatably connected to the connecting block 430, and the connecting block 430 is fixedly connected to the slider 420.

[0039] Here, a telescopic drive member 410 is used to drive the slider 420 to move along the slide rail 230 to realize the rotation of the solar panel 200. Compared with the method of directly driving the solar panel 200 to rotate by a motor, on the one hand, the telescopic drive member 410 and the slider 420 are simple to install and easy to maintain. In addition, due to the simple structure of the telescopic drive member 410 and the slider 420, when a fault occurs in the driving mechanism 400, fault diagnosis and component replacement are relatively easy, and the cost is lower than that of a motor, which is beneficial to reducing the cost of the photovoltaic device. On the other hand, when the telescopic drive member 410 is a cylinder or a hydraulic cylinder, it is more suitable for working in harsh environments, which is beneficial to extending the service life of the photovoltaic device.

[0040] Optionally, the telescopic driving member 410 may be a cylinder, or a hydraulic cylinder, or other telescopic components. One end of the telescopic driving member 410 may be rotatably connected to the support plate 120 away from the angle plate 610 .

[0041] In other embodiments, the driving mechanism 400 may include a motor, and the output shaft of the motor may be connected to the rotating shaft 300 , so that the motor can drive the rotating shaft 300 to rotate, thereby driving the solar panel 200 to rotate.

[0042] In the embodiment of the present application, in the initial stage, the turning handle 620 of the angle indicating mechanism 600 of the photovoltaic device abuts against the guide block 632 of the angle indicating assembly 630 adjacent to it, so that the second elastic member 640 on the guide block 632 in contact with the turning handle 620 is continuously in a compressed state. When it is necessary to increase the solar energy absorption rate by adjusting the angle of the solar panel 200, the telescopic rod of the telescopic driving member 410 is controlled to extend, and the telescopic rod of the telescopic driving member 410 pushes the solar panel 200 upward through the connecting block 430 and the slider 420, so that the solar panel 200 rotates in a first direction, such as left rotation, and ... 0 drives the rotating shaft 300 to rotate, and the rotating shaft 300 drives the rotating handle 620 to rotate. During the rotation of the rotating shaft 300, the clamping member 520 is pushed toward the direction close to the fixed block 510, so that the first elastic member 530 is compressed and the clamping member 520 is separated from the clamping slot 310; as the rotating shaft 300 continues to rotate, when the clamping member 520 is aligned with another clamping slot 310, the first elastic member 530 is reset and pushes the clamping member 520 to be embedded in the clamping slot 310, so that the rotating shaft 300 is clamped and matched with the fixed block 510. It should be noted that during the continuous rotation of the rotating shaft 300, the clamping member 520 will continuously perform the above operation.

[0043] At the same time, after the handle 620 rotates, it will separate from the guide block 632 of the angle indicating assembly 630 that it is against, and the second elastic member 640 will reset and drive the angle indicating assembly 630 to move and reset in the direction close to the solar panel 200. After that, as the handle 620 continues to rotate, it will contact the guide block 632 of the next angle indicating assembly 630 and push the indicating block 631 of the angle indicating assembly 630 through the through hole 611 to protrude from the side of the angle plate 610 away from the solar panel 200. At this time, the angle indicating assembly 63 0 is compressed, and the indicating block 631 passing through the through hole 611 on the angle plate 610 plays the role of indicating the rotation angle of the solar panel 200. The staff can observe the rotation angle of the solar panel 200 through the pushed out indicating block 631 and the scale (i.e., angle mark) on the angle plate 610, so that the staff can adjust the rotation angle of the solar panel 200. After that, the above operation will be repeated during the continuous rotation of the turning handle 620 to separate the adjacent angle indicating assembly 630 and push out the next angle indicating assembly 630. When the solar panel 200 needs to be rotated in the opposite direction of the first direction, for example, to rotate rightward, the telescopic rod of the telescopic driving member 410 is controlled to be retracted, and the telescopic rod of the telescopic driving member 410 then pulls the solar panel 200 downward through the connecting block 430 and the slider 420, so that the solar panel 200 rotates rightward, and the solar panel 200 drives the rotating shaft 300 to rotate in the opposite direction, and the rotating shaft 300 then drives the rotating handle 620 to rotate in the opposite direction. During the process of the rotating shaft 300 rotating in the opposite direction, the multiple first elastic members 530 will be deformed or reset, so that the clamping member 520 is released from the clamping slot 31 0 is disengaged from or embedded in the card slot 310, and the handle 620 will continue to move the angle indicating component 630 touched by the rotation process during the reverse rotation to indicate the rotation angle of the solar panel 200. The staff can control the extension and contraction of the telescopic rod of the telescopic driving member 410 to rotate the solar panel 200 to a suitable angle, and then close the telescopic driving member 410. The angle of the solar panel 200 can be automatically adjusted through the above operation, so as to achieve the effect of increasing the solar energy absorption rate according to the adjustment of the angle of the solar panel 200.

[0044] In an optional embodiment of the present application, the photovoltaic device may further include a cleaning mechanism 700, which may include a cleaning member 710, which may be movably disposed on the light absorbing surface of the solar panel 200, and the cleaning member 710 may contact the light absorbing surface and may be used to clean the light absorbing surface to ensure that the solar panel 200 can work normally and to prevent the solar panel 200 from being too dirty and affecting the light absorption rate of the solar panel 200. Here, the cleaning member 710 may be a wiping sponge bar.

[0045] The cleaning mechanism 700 may further include a cleaning drive 720, which may be connected to the cleaning member 710 and may be used to drive the cleaning member 710 to move. In this way, the movement of the cleaning member 710 may be automatically achieved by the cleaning drive 720 without artificially pushing the cleaning member 710 to move.

[0046] Optionally, the cleaning drive member 720 may be an electric slide rail, and the cleaning member 710 may be connected to the sliding member of the electric slide rail. When the solar panel 200 needs to be cleaned, the electric slide rail is started, and the electric slide rail may drive the cleaning member 710 to move back and forth. The cleaning member 710 may move back and forth to wipe off the debris or dust on the solar panel 200, thereby achieving the effect of cleaning the solar panel 200. Here, the electric slide rail may include a motor and a ball screw mechanism, and the sliding member may be a nut of the ball screw mechanism. The motor may be connected to the screw of the ball screw mechanism to drive the screw to rotate, so as to drive the nut to move, and then the movement of the cleaning member 710 may be realized.

[0047] In other embodiments, the photovoltaic device may not include the cleaning mechanism 700, or the cleaning mechanism 700 may only include the cleaning member 710. When the solar panel 200 needs to be cleaned, the cleaning member 710 may be manually pushed to move.

[0048] In an optional embodiment, the cleaning mechanism 700 may include at least two cleaning members 710 and at least two cleaning driving members 720, each cleaning member 710 may be respectively connected to each cleaning driving member 720, each cleaning driving member 720 respectively drives each cleaning member 710 to move, wherein at least two cleaning members 710 may include a first cleaning member 711 and a second cleaning member 712, the first cleaning member 711 and the second cleaning member 712 may be arranged in parallel, at least two cleaning driving members 720 may include a first cleaning driving member 721 and a second cleaning driving member 722, the first cleaning driving member 721 and the second cleaning driving member 722 may respectively drive the first cleaning member 711 and the second cleaning member 712 to move in opposite directions, so that the first cleaning member 711 and the second cleaning member 712 can clean the solar panel 200 at the same time, and can clean different positions of the solar panel 200, which is beneficial to save the cleaning time of the solar panel 200 and improve the cleaning effect.

[0049] Optionally, the solar panel 200 may include a first main board 201, a second main board 202 and a connecting plate 203. The first main board 201 and the second main board 202 may be connected via the connecting plate 203. The rotating shaft 300 may be connected to the connecting plate 203, and the connecting plate 203 may form two avoidance grooves 204 between the first main board 201 and the second main board 202 at both ends of the axial direction of the rotating shaft 300. The two support plates 120 mentioned above may be respectively located in the two avoidance grooves 204. This is conducive to the miniaturization of the photovoltaic device, and further conducive to reducing the space occupied by the photovoltaic device.

[0050] Here, the first cleaning member 711 and the second cleaning member 712 described above can be respectively arranged on the first main board 201 and the second main board 202, the first cleaning member 711 can be used to clean the first main board 201, and the second cleaning member 712 can be used to clean the second main board 202. In addition, the at least two cleaning members 710 can also include a third cleaning member, which can be arranged on the connecting plate 203, and the at least two cleaning driving members 720 can also include a third cleaning driving member, which can be connected to the third cleaning member and can be used to drive the third cleaning member to move so that the third cleaning member cleans the connecting plate 203.

[0051] In an optional embodiment of the present application, the photovoltaic device may further include a liquid spraying mechanism 800, which may include a liquid storage barrel 810 and a liquid spraying assembly 820 connected to the liquid storage barrel 810, and the liquid spraying port of the liquid spraying assembly 820 may be directed toward the light absorbing surface of the solar panel 200. In this way, the liquid spraying assembly 820 may spray liquid toward the light absorbing surface of the solar panel 200, which may cool or heat the solar panel 200 on the one hand, and clean the solar panel 200 on the other hand. Optionally, the liquid may be water or a cleaning liquid.

[0052] Here, the liquid storage barrel 810 can be a closed structure. Specifically, the liquid storage barrel 810 includes a barrel body and a sealing cover covering the opening of the barrel body. The sealing cover can be screwed to the barrel body to seal the barrel body.

[0053] In other embodiments, the photovoltaic device may not include the liquid spraying mechanism 800 .

[0054] In an optional embodiment, if Fig.11As shown, the liquid spraying assembly 820 may include a liquid spraying cylinder 821, a nozzle 822 and a push block 823, wherein the push block 823 may be slidably disposed in the liquid spraying cylinder 821, and a liquid spraying chamber 8211 may be formed between the push block 823 and the nozzle 822, and the nozzle 822 may be communicated with the liquid spraying chamber 8211, and here, the liquid spraying port of the liquid spraying assembly 820 may be the liquid spraying port of the nozzle 822, so as to ensure that the nozzle 822 can spray liquid toward the light absorbing surface of the solar panel 200. The liquid spraying chamber 8211 may be communicated with the liquid storage barrel 810, so that the liquid in the liquid storage barrel 810 can enter the liquid spraying chamber 8211.

[0055] In order to prevent the liquid in the liquid spraying chamber 8211 from flowing back into the liquid storage barrel 810, a one-way valve 831 may be provided between the liquid spraying chamber 8211 and the liquid storage barrel 810, and the one-way valve 831 may be conducted from the liquid storage barrel 810 to the liquid spraying chamber 8211, so that the liquid can only enter the liquid spraying chamber 8211 from the liquid storage barrel 810. Here, the liquid spraying chamber 8211 and the liquid storage barrel 810 may be connected through a connecting pipe 830, and the one-way valve 831 may be provided on the connecting pipe 830.

[0056] The liquid spraying assembly 820 may further include a liquid inlet and outlet driving member, which may be connected to the push block 823 and may be used to drive the push block 823 to move so as to adjust the pressure of the liquid spraying chamber 8211 .

[0057] When the liquid inlet and outlet driving member drives the push block 823 away from the spray head 822, the pressure of the spray chamber 8211 decreases, so that the liquid in the liquid storage barrel 810 enters the spray chamber 8211 to achieve liquid inlet.

[0058] When the liquid inlet and outlet driving member drives the push block 823 to approach the spray head 822, the pressure of the spray chamber 8211 increases, so that the liquid in the spray chamber 8211 is sprayed out through the spray head 822 to achieve liquid spraying.

[0059] The liquid spraying assembly 820 uses a liquid spraying cylinder 821, a nozzle 822, a push block 823 and liquid inlet and outlet driving parts to achieve the operation of pumping and spraying liquid. Compared with the method of cooperating with the liquid spraying pump through the nozzle 822, it is easy to maintain, easy to replace when some components are damaged, and easier to adapt to harsh working environments.

[0060] In other embodiments, the liquid spraying assembly 820 may include a spray head 822 and a liquid spraying pump, wherein the liquid inlet of the liquid spraying pump is connected to the liquid storage barrel 810 , and the liquid outlet of the liquid spraying pump is connected to the spray head 822 .

[0061] Optionally, the liquid inlet and outlet driving member may include a pull rope 824 and a third elastic member 825. The first end of the pull rope 824 may be connected to the solar panel 200, and the second end of the pull rope 824 may be connected to the push block 823. The pull rope 824 may pull the push block 823 away from the nozzle 822. Here, since the pull rope 824 is connected to the solar panel 200, the pull rope 824 may be pulled by the rotation of the solar panel 200 to pull the push block 823 away from the nozzle 822, so that the liquid in the liquid storage barrel 810 can be discharged. The body enters the spray chamber 8211; the third elastic member 825 can be arranged in the spray cylinder 821, the first end of the third elastic member 825 can be connected to the end of the spray cylinder 821 away from the nozzle 822, the second end of the third elastic member 825 can be connected to the push block 823, and the third elastic member 825 can be used to drive the push block 823 to reset, that is, the third elastic member 825 can drive the push block 823 to approach the nozzle 822, so that the liquid in the spray chamber 8211 is sprayed out through the nozzle 822.

[0062] Compared with the method of using the extension and retraction of the telescopic cylinder to achieve the movement of the push block 823, the method of using the pull rope 824 and the third elastic member 825 to achieve the movement of the push block 823 does not require additional power. The movement of the push block 823 can be achieved only by a mechanical mechanism. On the one hand, it is beneficial to save energy and reduce costs. On the other hand, when the photovoltaic device is in a harsh environment, the inlet and outlet liquid drive components are not easily damaged.

[0063] Of course, the inlet and outlet liquid driving member can also be a telescopic cylinder, such as a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. The piston rod of the telescopic cylinder can be connected to the push block 823, and the push block 823 can be driven to move by the extension and contraction of the piston rod of the telescopic cylinder.

[0064] In an optional embodiment, the solar panel 200 may include a first portion 210 and a second portion 220 connected to the first portion 210, and the first portion 210 and the second portion 220 may be symmetrical about the rotation axis of the solar panel 200. Here, the first portion 210 may include a portion of the first main board 201 and the connecting plate 203 described above, and the second portion 220 may include another portion of the second main board 202 and the connecting plate 203 described above, and the first portion 210 and the second portion 220 may be an integrated structure.

[0065] Furthermore, the liquid spraying mechanism 800 may include at least two liquid spraying components 820, which may include a first liquid spraying component 801 and a second liquid spraying component 802. The liquid spraying port of the first liquid spraying component 801 may be oriented toward the light absorbing surface of the first portion 210, and the liquid spraying port of the second liquid spraying component 802 may be oriented toward the light absorbing surface of the second portion 220. In this way, the spraying area of ​​the solar panel 200 may be increased, the cooling or heating effect of the solar panel 200 may be improved, and the cleaning effect may be improved, and it is also beneficial to save cooling time or heating time, save cleaning time, and improve efficiency.

[0066] Of course, the liquid spraying mechanism 800 may also include only one liquid spraying component 820 .

[0067] Optionally, the first end of the pull rope 824 of the first liquid spraying assembly 801 can be connected to the second part 220, and the first end of the pull rope 824 of the second liquid spraying assembly 802 can be connected to the first part 210, that is, the pull rope 824 of the first liquid spraying assembly 801 and the pull rope 824 of the second liquid spraying assembly 802 are arranged crosswise. In this way, it is convenient to pull the pull rope 824, and the first liquid spraying assembly 801 and the second liquid spraying assembly 802 can be alternately filled with liquid and sprayed.

[0068] Specifically, when the solar panel 200 rotates from the first part 210 to the second part 220, that is, when it rotates to the right, the second part 220 can pull the pull rope 824 of the first spray component 801, so that the pull rope 824 of the first spray component 801 pulls the push block 823 of the first spray component 801 away from the nozzle 822 of the first spray component 801, thereby allowing the liquid in the liquid storage barrel 810 to enter the spray chamber 8211 of the first spray component 801; at this time, the pull rope 824 of the second spray component 802 is in a loose state, and the third elastic member 825 of the second spray component 802 can push the push block 823 close to the nozzle 822, so that the liquid in the spray chamber 8211 of the second spray component 802 is sprayed onto the second part 220 through the nozzle 822, thereby achieving cooling or heating of the second part 220, as well as cleaning. When the solar panel 200 rotates from the second part 220 to the first part 210, the first part 210 can pull the pull rope 824 of the second spray assembly 802 to pull the push block 823 of the second spray assembly 802 away from the nozzle 822, so that the liquid in the liquid storage barrel 810 enters the spray chamber 8211 of the second spray assembly 802; at this time, the pull rope 824 of the first spray assembly 801 is in a loose state, and the third elastic member 825 of the first spray assembly 801 can push the push block 823 to approach the nozzle 822, so that the liquid in the spray chamber 8211 of the first spray assembly 801 is sprayed onto the first part 210 through the nozzle 822, thereby achieving cooling or heating of the first part 210, as well as cleaning.

[0069] Of course, the first end of the pull rope 824 of the first liquid spraying assembly 801 may also be connected to the first part 210 , and the first end of the pull rope 824 of the second liquid spraying assembly 802 may also be connected to the second part 220 .

[0070] Optionally, the liquid spraying cylinder 821 may be disposed on the support plate 120. Further, the photovoltaic device may include two liquid spraying mechanisms 800, and the two liquid spraying mechanisms 800 may be respectively located on opposite sides of the two support plates 120, and here, the liquid spraying cylinders 821 of the two liquid spraying mechanisms 800 may be respectively disposed on the two support plates 120. Moreover, the liquid spraying ports of the liquid spraying assemblies 820 of the two liquid spraying mechanisms 800 may all face the light absorbing surface of the solar panel 200, so that the cooling or heating effect and the cleaning effect on the solar panel 200 may be improved.

[0071] In an optional embodiment of the present application, the photovoltaic device may further include a temperature regulating mechanism 900, which may be disposed on the liquid storage barrel 810 and may be used to regulate the temperature of the liquid in the liquid storage barrel 810, and to regulate the temperature of the solar panel 200 by spraying liquids of different temperatures to the solar panel 200 through the liquid spraying assembly 820. Here, the method in which the temperature regulating mechanism 900 is disposed on the liquid storage barrel 810 and indirectly regulates the temperature of the solar panel 200 by regulating the temperature of the liquid is relative to the method in which the temperature regulating mechanism 900 is directly disposed on the solar panel 200, and does not easily affect the working performance of the internal components of the solar panel 200, and can ensure that the solar panel 200 can work normally.

[0072] In other embodiments, the temperature regulating mechanism 900 may not be disposed on the liquid storage barrel 810 , and the temperature regulating mechanism 900 may be directly disposed on the solar panel 200 .

[0073] In an optional embodiment, the temperature control mechanism 900 may include a semiconductor cooling sheet 910, which may be arranged around the outside of the liquid storage barrel 810 to cool the liquid in the liquid storage barrel 810. Here, the use of the semiconductor cooling sheet 910 to cool the liquid in the liquid storage barrel 810 takes up less space, does not require a refrigerant, and has a fast cooling speed compared to the use of other refrigeration devices or components; and by changing the direction of the current of the semiconductor cooling sheet 910, the semiconductor cooling sheet 910 can achieve a heating function to heat the liquid in the liquid storage barrel 810, so that no additional heating element is required, which is conducive to simplifying the structure of the temperature control mechanism 900. Optionally, the temperature control mechanism 900 may include at least two semiconductor cooling sheets 910, and each semiconductor cooling sheet 910 may be distributed at intervals along the circumference of the liquid storage barrel 810.

[0074] Of course, the temperature control mechanism 900 may also use other refrigeration devices or components to cool the liquid in the liquid storage barrel 810 , for example, a refrigeration compressor unit may be used to cool the liquid storage barrel 810 .

[0075] In some embodiments, the temperature adjustment mechanism 900 may further include a heating element, which may be disposed around the outside of the liquid storage barrel 810. Of course, the heating element may also be disposed inside the liquid storage barrel 810, and the heating element may be used to heat the liquid in the liquid storage barrel 810. Here, the heating element may be a heating wire. In other embodiments, the temperature adjustment mechanism 900 may also not include a heating element.

[0076] Optionally, the temperature control mechanism 900 may further include a power supply component 920, which may be electrically connected to the semiconductor cooling sheet 910 and / or the heating element to supply power to the semiconductor cooling sheet 910 and / or the heating element.

[0077] In this embodiment, the power supply component 920 may be a storage battery. Alternatively, the power supply component 920 may be a power generation component of a photovoltaic device, so that there is no need to additionally provide a storage battery to power the semiconductor cooling sheet 910 and / or the heating element.

[0078] In the embodiment of the present application, when installing the liquid spray component 820, the pull rope 824 of the liquid spray component 820 pulls the push block 823 to move the push block 823 away from the nozzle 822 and compress the third elastic member 825. After the liquid spray component 820 is installed, the sealing cover of the liquid storage barrel 810 is unscrewed from the barrel body, and then the barrel body is filled with liquid, and the sealing cover is put back on the barrel body to seal the barrel body to prevent foreign matter from entering the liquid storage barrel 810. Then, the semiconductor refrigeration chip 910 is started, and the semiconductor refrigeration chip 910 cools the liquid in the liquid storage barrel 810. At the same time, the power supply component 920 will supply power to the semiconductor refrigeration chip 910. After the temperature of the liquid in the liquid storage barrel 810 drops to a preset temperature (for example, 20°C), the semiconductor refrigeration chip 910 is turned off. When the solar panel 200 rotates to the left, the solar panel 200 will loosen the pull rope 824 of the first liquid spraying assembly 801, so that the third elastic member 825 of the first liquid spraying assembly 801 is reset and drives the push block 823 of the first liquid spraying assembly 801 close to the nozzle 822 of the first liquid spraying assembly 801, so that the liquid in the liquid spraying barrel 821 of the first liquid spraying assembly 801 is sprayed out; at the same time, after the solar panel 200 rotates to the left, the pull rope 824 of the second liquid spraying assembly 802 is pulled The push block 823 of the second liquid spraying assembly 802 moves away from the nozzle 822 of the second liquid spraying assembly 802, and compresses the third elastic member 825 of the second liquid spraying assembly 802, so that the liquid in the liquid storage barrel 810 enters the liquid spraying cylinder 821 of the second liquid spraying assembly 802 through the connecting pipe 830 and the one-way valve 831; when the solar panel 200 rotates to the right, the solar panel 200 releases the pull rope 824 of the second liquid spraying assembly 802, so that the third elastic member 825 of the second liquid spraying assembly 802 The elastic member 825 is reset and pushes the push block 823 to approach the nozzle 822 of the second liquid spraying assembly 802. Under the action of the one-way valve 831, the liquid in the liquid spraying barrel 821 of the second liquid spraying assembly 802 cannot flow back into the connecting pipe 830. Therefore, after the push block 823 of the second liquid spraying assembly 802 moves toward the nozzle 822 of the second liquid spraying assembly 802, the liquid in the liquid spraying barrel 821 of the second liquid spraying assembly 802 is discharged through the second liquid spraying assembly 802. 02's nozzle 822 sprays onto the solar panel 200. At the same time, after the solar panel 200 rotates to the right, the pull rope 824 of the first spray assembly 801 pulls the push block 823 of the first spray assembly 801 away from the nozzle 822 of the first spray assembly 801, and compresses the third elastic member 825 of the first spray assembly 801, so that the liquid in the liquid storage barrel 810 enters the spray cylinder 821 of the first spray assembly 801 through the connecting pipe 830 and the one-way valve 831.In this way, whenever the solar panel 200 rotates, the first spray component 801 and the second spray component 802 can alternately spray liquid onto the solar panel 200 to cool the surface of the solar panel 200, thereby preventing the solar panel 200 from being affected by the high surface temperature and causing the solar energy absorption rate to be affected, thereby further ensuring the solar energy absorption rate of the solar panel 200, and the liquid can also assist the cleaning component 710 to clean the solar panel 200, thereby achieving a better cleaning effect.

[0079] It should be noted that the first elastic member 530 , the second elastic member 640 and the third elastic member 825 mentioned above may all be springs.

[0080] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A photovoltaic device, characterized in that: include: base(100); A solar panel (200) rotatably connected to the base (100); A driving mechanism (400) is arranged on the base (100); the driving mechanism (400) is connected to the solar panel (200) and is used to drive the solar panel (200) to rotate.

2. The photovoltaic device according to claim 1, characterized in that: The solar panel (200) is rotatably connected to the base (100) via a rotating shaft (300); The photovoltaic device further comprises a snap mechanism (500), the snap mechanism (500) comprising a fixed block (510), a first elastic member (530) and a clamping member (520), the fixed block (510) being connected to the base (100), a plurality of clamping slots (310) being provided on one of the fixed block (510) and the first end of the rotating shaft (300), the other of the fixed block (510) and the first end of the rotating shaft (300) being connected to the first end of the first elastic member (530), the second end of the first elastic member (530) being connected to the clamping member (520), the clamping slots (310) being distributed at intervals along the circumference of the rotating shaft (300), and the clamping member (520) being embeddable in the clamping slots (310).

3. The photovoltaic device according to claim 2, characterized in that: The photovoltaic device further comprises an angle indicating mechanism (600), wherein the angle indicating mechanism (600) comprises: an angle plate (610) located at one side of the solar panel (200) and connected to the base (100); a plurality of angle marks distributed at intervals are provided on a side of the angle plate (610) facing away from the solar panel (200); and a plurality of through holes (611) are provided on the angle plate (610); each of the through holes (611) is distributed at intervals along the circumference of the rotating shaft (300); each of the through holes (611) corresponds one-to-one to each of the angle marks, and each of the through holes (611) corresponds one-to-one to each of the slots (310); A rotating handle (620) is located between the angle plate (610) and the solar panel (200), and the rotating handle (620) is connected to the second end of the rotating shaft (300); An angle indicating assembly (630), when the rotating handle (620) is rotated to a position corresponding to the through hole (611), the rotating handle (620) drives the angle indicating assembly (630) to pass through the through hole (611) and protrude from a side of the angle plate (610) facing away from the solar panel (200).

4. The photovoltaic device according to claim 3, characterized in that: A plurality of the angle indicating components (630) are provided, each of the angle indicating components (630) is respectively arranged opposite to each of the through holes (611), and the rotating handle (620) can respectively contact each of the angle indicating components (630) and can respectively drive each of the angle indicating components (630) to pass through each of the through holes (611); The angle indicating mechanism (600) further comprises a plurality of second elastic members (640), the first end of each second elastic member (640) being connected to a surface of the angle plate (610) close to the solar panel (200), the second end of each second elastic member (640) being connected to each angle indicating assembly (630), and each second elastic member (640) being used to drive each angle indicating assembly (630) to reset.

5. The photovoltaic device according to claim 4, characterized in that: The angle indicating assembly (630) comprises: an indicating block (631), wherein a first end of the indicating block (631) can pass through the through hole (611), and the second elastic member (640) is sleeved outside the indicating block (631); A guide block (632), wherein a first end of the guide block (632) is connected to a second end of the indicating block (631), a second end of the second elastic member (640) is connected to a first end of the guide block (632), the second end of the guide block (632) can contact the rotating handle (620), and guide surfaces (6321) are provided on both sides of the guide block (632) in the rotation direction of the rotating handle (620), the rotating handle (620) can contact the guide surfaces (6321), and along the direction from the indicating block (631) to the guide block (632), the two guide surfaces (6321) are close to each other.

6. The photovoltaic device according to claim 1, characterized in that: The photovoltaic device further comprises a cleaning mechanism (700), wherein the cleaning mechanism (700) comprises: A cleaning member (710) is movably disposed on the light absorbing surface of the solar panel (200), the cleaning member (710) being in contact with the light absorbing surface and being used to clean the light absorbing surface; A cleaning driving member (720) is connected to the cleaning member (710) and is used to drive the cleaning member (710) to move.

7. The photovoltaic device according to claim 1, characterized in that: The photovoltaic device further comprises a liquid spraying mechanism (800), the liquid spraying mechanism (800) comprising a liquid storage barrel (810) and a liquid spraying assembly (820) connected to the liquid storage barrel (810), the liquid spraying port of the liquid spraying assembly (820) facing the light absorption surface of the solar panel (200).

8. The photovoltaic device according to claim 7, characterized in that: The liquid spraying assembly (820) comprises a liquid spraying cylinder (821), a spray head (822), a push block (823) and a liquid inlet and outlet driving member, the push block (823) is slidably arranged in the liquid spraying cylinder (821), and a liquid spraying chamber (8211) is formed between the push block (823) and the spray head (822), the spray head (822) is communicated with the liquid spraying chamber (8211), the liquid spraying port of the liquid spraying assembly (820) is the liquid spraying port of the spray head (822), and the liquid spraying chamber (8211) is communicated with the liquid storage barrel (810), and the liquid inlet and outlet driving member is connected to the push block (823) and is used to drive the push block (823) to move so as to adjust the pressure of the liquid spraying chamber (8211); When the liquid inlet and outlet driving member drives the push block (823) away from the spray head (822), the pressure of the liquid spray chamber (8211) decreases, so that the liquid in the liquid storage barrel (810) enters the liquid spray chamber (8211); When the liquid inlet and outlet driving member drives the push block (823) to approach the spray head (822), the pressure of the spray chamber (8211) increases, so that the liquid in the spray chamber (8211) is sprayed out through the spray head (822); A one-way valve (831) is provided between the liquid spraying chamber (8211) and the liquid storage barrel (810), and the one-way valve (831) is connected in a direction from the liquid storage barrel (810) to the liquid spraying chamber (8211).

9. The photovoltaic device according to claim 8, characterized in that: The liquid inlet and outlet driving member comprises: A pull rope (824), wherein a first end of the pull rope (824) is connected to the solar panel (200), and a second end of the pull rope (824) is connected to the push block (823), and the pull rope (824) can pull the push block (823) away from the spray head (822); A third elastic member (825) is disposed in the liquid spraying barrel (821); a first end of the third elastic member (825) is connected to an end of the liquid spraying barrel (821) away from the spray head (822); a second end of the third elastic member (825) is connected to the push block (823); and the third elastic member (825) is used to drive the push block (823) to reset.

10. The photovoltaic device according to claim 9, characterized in that: The solar panel (200) comprises a first part (210) and a second part (220) connected to the first part (210), wherein the first part (210) and the second part (220) are symmetrical about a rotation axis of the solar panel (200); The liquid spraying mechanism (800) comprises at least two liquid spraying components (820), including a first liquid spraying component (801) and a second liquid spraying component (802), wherein the liquid spraying port of the first liquid spraying component (801) faces the light absorbing surface of the first part (210), and the liquid spraying port of the second liquid spraying component (802) faces the light absorbing surface of the second part (220).

11. The photovoltaic device according to claim 10, characterized in that: The first end of the pull rope (824) of the first liquid spraying assembly (801) is connected to the second part (220), and the first end of the pull rope (824) of the second liquid spraying assembly (802) is connected to the first part (210).

12. The photovoltaic device according to claim 7, characterized in that: The photovoltaic device further comprises a temperature regulating mechanism (900), wherein the temperature regulating mechanism (900) is arranged on the liquid storage barrel (810) and is used to regulate the temperature of the liquid in the liquid storage barrel (810).

13. The photovoltaic device according to claim 12, characterized in that: The temperature adjustment mechanism (900) comprises: A semiconductor refrigeration sheet (910), the semiconductor refrigeration sheet (910) being arranged around the outside of the liquid storage barrel (810); and / or, A heating element, the heating element being arranged around the outside of the liquid storage barrel (810).

14. The photovoltaic device according to claim 1, characterized in that: The driving mechanism (400) comprises: A slider (420), wherein a slide rail (230) is provided on the solar panel (200), the extension direction of the slide rail (230) is perpendicular to the rotation axis of the solar panel (200), and the slider (420) is slidably connected to the slide rail (230); A telescopic driving member (410), one end of the telescopic driving member (410) being rotatably connected to the base (100), and the other end of the telescopic driving member (410) being rotatably connected to the sliding block (420), the telescopic driving member (410) being used to drive the sliding block (420) to slide along the sliding rail (230).

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