Photovoltaic power generation device and cleaning method
By designing a water photovoltaic power generation device that includes sliding and clean structures, the problem of pollution affecting efficiency of photovoltaic panels in the water photovoltaic power generation system is solved, and timely cleaning and efficient power generation of photovoltaic panels are achieved.
Patent Information
- Application Number
- CN202411680449.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-02-14
AI Technical Summary
In the water photovoltaic power generation system, pollutants such as dust and dirt cover the photovoltaic panels, affecting the photoelectric conversion efficiency, and it is difficult for the prior art to achieve timely cleaning of the photovoltaic panels.
Design a photovoltaic power generation device floating on the water surface, including a support structure, a photovoltaic panel, a driving structure, a cleaning structure and a control structure. The photovoltaic panel is slid against the support structure by driving structure, and during the sliding process, the roller brush of the cleaning structure rotates on the light-receiving surface of the photovoltaic panel and cleans it with flexible bristles. The control structure is used to remotely control the driving structure to achieve long-distance cleaning of the photovoltaic panel.
Through the coordinated work of sliding and cleaning structures, the effective cleaning of photovoltaic panels is achieved, ensuring the maintenance and improvement of photoelectric conversion efficiency, and convenient cleaning of photovoltaic panels on the water surface is achieved through remote control.
Smart Images
Figure CN119448911A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic power generation device and a cleaning method. Background Art
[0002] With the development of renewable energy, solar energy has attracted more and more attention as a clean and endless energy source.
[0003] Waterborne photovoltaic power generation is to arrange photovoltaic panels above the water surface. This method can reduce the occupation of land. At the same time, the presence of water can reduce the probability of high temperature in photovoltaic panels, thereby ensuring the power generation efficiency of photovoltaic panels and extending the service life of photovoltaic panels.
[0004] However, in actual applications, pollutants such as dust and dirt (such as bird droppings, etc.) may cover the photovoltaic panels to affect the photoelectric conversion efficiency of the photovoltaic panels. Summary of the invention
[0005] The present disclosure provides a photovoltaic power generation device and a cleaning method, and a technical problem to be solved is: timely cleaning of photovoltaic panels to ensure the photoelectric conversion efficiency of the photovoltaic panels.
[0006] In the first aspect, the present disclosure provides a photovoltaic power generation device that floats on the water surface, which may include: a supporting structure, a photovoltaic panel, a driving structure, a cleaning structure and a control structure, wherein the supporting structure has a slide rail extending along a first direction; at least one photovoltaic panel is slidably connected to the slide rail; the driving structure is respectively connected to the supporting structure and the photovoltaic panel, and can provide a driving force for the photovoltaic panel to slide relative to the supporting structure; the cleaning structure includes: a roller brush, which is arranged on the light-receiving surface of the photovoltaic panel, and the roller brush extends along a second direction that meets the perpendicular condition to the first direction, and the roller brush can rotate on the light-receiving surface during the sliding of the photovoltaic panel along the slide rail, so that the flexible bristles on the peripheral side of the roller brush clean the light-receiving surface; the control structure is connected to the driving structure signal to control its driving process.
[0007] In some embodiments, the roller brush is hollow, and its peripheral surface is provided with multiple water holes connected to the hollow; the cleaning structure also includes: a water pump, an adapter cylinder and a water inlet pipe; the water pump has a water inlet and a water outlet; the adapter cylinder is connected to the water outlet and one end of the roller brush hollow along the second direction, and the radial dimension of the adapter cylinder is larger than the radial dimension of the hollow; one end of the water inlet pipe is connected to the water inlet, and the other end extends under the water surface; wherein, the control structure is also connected to the cleaning structure signal to control the cleaning process of the cleaning structure.
[0008] In some embodiments, there is an angle between the plane where the light receiving surface is located and the plane where the water surface is located.
[0009] In some embodiments, the supporting structure includes: two fixing members, a light intensity sensor and a wireless signal transmitter; the two fixing members are respectively arranged at the two ends of the photovoltaic panel along the second direction, and at least a portion of the fixing members is provided with a light-transmitting area; the light intensity sensor is arranged on the side of the fixing member corresponding to the back-light-receiving surface of the photovoltaic panel, and opposite to the light-transmitting area; the wireless signal transmitter is electrically connected to the light intensity sensor, and is signal-connected to the control structure.
[0010] In some embodiments, the support structure also includes: a bracket, a first support member and a second support member; the bracket is provided with a first connecting portion and a second connecting portion at both ends along the second direction; the first support member is connected to the first connecting portion and has a first strip sliding portion; the second support member is connected to the second connecting portion and has a second strip sliding portion, and the first strip sliding portion and the second strip sliding portion are opposite to each other to cooperate to form a slide rail; wherein, part of the photovoltaic panel is slidably connected to the first strip sliding portion and partly is slidably connected to the second strip sliding portion so as to be able to slide relative to the slide rail, and the two ends of the roller brush are rotatably connected to the first support member and the second support member respectively.
[0011] In some embodiments, the cleaning structure further includes: a first motor, which is arranged on a side of the first support member away from the second support member, and a first motor shaft of the first motor passes through the first support member and is connected to the roller brush to drive the roller brush to rotate relative to the light receiving surface.
[0012] In some embodiments, the driving structure includes: a rotating shaft, a second motor, two gears and two racks; the two ends of the rotating shaft are respectively rotatably connected to the first support member and the second support member; the second motor is arranged on the side of the first support member away from the second support member, and the second motor shaft of the second motor passes through the first support member and is connected to the rotating shaft; the two gears are respectively mounted on the two ends of the rotating shaft; the two racks are respectively arranged on the two fixing members and are respectively meshed with the two gears.
[0013] In some embodiments, the photovoltaic power generation device may further include: a power storage structure electrically connected to the photovoltaic panel and connected to power-consuming components on the photovoltaic power generation device.
[0014] In some embodiments, the photovoltaic power generation device may further include: a buoyancy member and a counterweight member, wherein the buoyancy member is disposed below the supporting structure and floats on the water surface; and the counterweight member is connected to the supporting structure or the cleaning structure and is located below the water surface.
[0015] In a second aspect, the present disclosure provides a cleaning method for cleaning a photovoltaic panel of a photovoltaic power generation device of any embodiment in the first aspect, and the cleaning method may include: remotely operating a control structure; controlling a drive structure to start by the control structure, so that the drive structure provides a driving force for the photovoltaic panel to slide relative to a support structure; during the sliding of the photovoltaic panel relative to the support structure, a roller brush rotates on the light-receiving surface side of the photovoltaic panel, so that the flexible bristles on the peripheral side of the roller brush clean the light-receiving surface.
[0016] Through the above technical scheme, the photovoltaic power generation device provided by the present invention includes: a supporting structure, at least one photovoltaic panel, a driving structure, a cleaning structure and a control structure. The supporting structure can support the photovoltaic panel, the driving structure and the cleaning structure. The photovoltaic panel can slide relative to the supporting structure under the drive of the driving structure, and during the sliding process, the roller brush of the cleaning structure can roll on the light-receiving surface of the photovoltaic panel, so that the flexible bristles on the side of the roller brush can sweep the light-receiving surface of the photovoltaic panel, thereby ensuring the photoelectric conversion efficiency of the photovoltaic panel; in addition, the control structure can remotely control the driving process of the driving structure, such as: providing the photovoltaic panel with a driving force to slide relative to the supporting structure, not providing the photovoltaic panel with a driving force to slide relative to the supporting structure, etc., so as to realize long-distance control of the cleaning process of the photovoltaic panel on the water surface.
[0017] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 The structure of the photovoltaic power generation device provided by the present invention is shown in FIG. Figure 1 ;
[0020] Figure 2 The structure of the photovoltaic power generation device provided by the present invention is shown in FIG. Figure 2 ;
[0021] Figure 3 A schematic diagram of the local structure of the photovoltaic power generation device provided in the present disclosure Figure 1 ;
[0022] Figure 4 A schematic diagram of the local structure of the photovoltaic power generation device provided in the present disclosure Figure 2;
[0023] Figure 5 A flow chart of a cleaning method provided by the present disclosure.
[0024] Description of reference numerals:
[0025] 1. Support structure; 11. Slide rail; 12. Fixing member; 121. Light-transmitting area; 13. Light intensity sensor; 14. Wireless signal transmitter; 15. Bracket; 151. First connecting part; 152. Second connecting part; 153. Bottom plate; 16. First supporting member; 161. First strip sliding part; 17. Second supporting member; 171. Second strip sliding part; 2. Photovoltaic panel; 21. Light-receiving surface; 22. Third sliding part; 23. Fourth sliding part; 3. Driving structure; 31. Rotating shaft; 32. Second motor; 33. Gear; 34. Rack; 4. Cleaning structure; 41. Roller brush; 411. Flexible bristles; 412. Water hole; 42. Water pump; 43. Adapter tube; 44. Water inlet pipe; 45. First motor; 5. Buoyancy member; 6. Counterweight member. DETAILED DESCRIPTION
[0026] The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.
[0027] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.
[0028] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0029] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.
[0030] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.
[0031] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.
[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0033] Waterborne photovoltaic power generation is to arrange photovoltaic panels above the water surface. This method can reduce the occupation of land. At the same time, the presence of water can reduce the probability of high temperature in photovoltaic panels, thereby ensuring the power generation efficiency of photovoltaic panels and extending the service life of photovoltaic panels.
[0034] However, in actual applications, pollutants such as dust and dirt (such as bird droppings, etc.) may cover the photovoltaic panels to affect the photoelectric conversion efficiency of the photovoltaic panels.
[0035] In view of the above technical problems, the present disclosure provides a photovoltaic power generation device floating on the water surface, which may include: a supporting structure 1, at least one photovoltaic panel 2, a driving structure 3, a cleaning structure 4 and a control structure (not shown in the figure); wherein the supporting structure 1 is capable of supporting the photovoltaic panel 2, the driving structure 3 and the cleaning structure 4, and the photovoltaic panel 2 can slide relative to the supporting structure 1 under the drive of the driving structure 3, and during the sliding process, the roller brush 41 of the cleaning structure 4 can roll on the light-receiving surface 21 of the photovoltaic panel 2, so that the flexible bristles 411 on the peripheral side of the roller brush 41 can perform a sweeping cleaning on the light-receiving surface 21 of the photovoltaic panel 2, thereby ensuring the photoelectric conversion efficiency of the photovoltaic panel 2; in addition, the control structure can remotely control the driving process of the driving structure 3, such as: providing a driving force for the photovoltaic panel 2 to slide relative to the supporting structure 1, not providing a driving force for the photovoltaic panel 2 to slide relative to the supporting structure 1, etc., so as to realize the remote control of the cleaning process of the photovoltaic panel 2 on the water surface.
[0036] First aspect
[0037] The present invention provides a photovoltaic power generation device, which floats on the water surface. Figures 1 to 5 As shown, the photovoltaic power generation device may include: a support structure 1, at least one photovoltaic panel 2, a driving structure 3, a cleaning structure 4 and a control structure, wherein the support structure 1 has a slide rail 11 extending along a first direction; at least one photovoltaic panel 2 is slidably connected to the slide rail 11; the driving structure 3 is respectively connected to the support structure 1 and the photovoltaic panel 2, and can provide a driving force for the photovoltaic panel 2 to slide relative to the support structure 1; the cleaning structure 4 includes: a roller brush 41, the roller brush 41 is arranged on the light-receiving surface 21 of the photovoltaic panel 2, the roller brush 41 extends along a second direction that meets the perpendicular condition to the first direction, and the roller brush 41 can rotate on the light-receiving surface 21 during the sliding of the photovoltaic panel 2 along the slide rail 11, so that the flexible bristles 411 on the peripheral side of the roller brush 41 clean the light-receiving surface 21; the control structure is connected to the signal of the driving structure 3 to control its driving process.
[0038] The photovoltaic power generation device floats on the water surface so that its position can change relative to the water surface. For example, workers can use ropes, long poles and other structures to tow the photovoltaic power generation device relative to the water surface according to the position of light to change the position of the photovoltaic power generation device, thereby improving the photoelectric conversion efficiency.
[0039] The support structure 1 can at least support the photovoltaic panel 2, the driving structure 3 and the cleaning structure 4. The slide rail 11 extending along the first direction can be a strip groove type slide rail 11 or a strip protrusion type slide rail 11. For example: Figure 2 and Figure 3As shown, the first support member 16 of the support structure 1 is provided with a first strip sliding portion 161, and the second support member 17 is provided with a second strip sliding portion 171. The first strip sliding portion 161 and the second strip sliding portion 171 cooperate to form a slide rail 11, and the first strip sliding portion 161 and the second strip sliding portion 171 are both strip grooves extending along the first direction, and the photovoltaic panel 2 is provided with a third sliding portion 22 and a fourth sliding portion 23 at both ends along the second direction on the side facing away from the light-receiving surface 21. The third sliding portion 22 extends into the first strip sliding portion 161 and can slide along the first strip sliding portion 161 in the first direction or in a third direction opposite to the first direction, and the fourth sliding portion 23 extends into the second strip sliding portion 171 and can slide along the second strip sliding portion 171 in the first direction or in the third direction, so that the photovoltaic panel 2 can slide along the slide rail 11 in the first direction or in a direction opposite to the first direction. For another example: the first support member 16 of the support structure 1 is provided with a first strip sliding portion 161, and the second support member 17 is provided with a second strip sliding portion 171. The first strip sliding portion 161 and the second strip sliding portion 171 cooperate to form a slide rail 11, and the first strip sliding portion 161 and the second strip sliding portion 171 are both strip-shaped protrusions extending along the first direction, and the photovoltaic panel 2 is provided with a fifth sliding portion and a sixth sliding portion at both ends along the second direction on the side facing away from the light-receiving surface 21. The fifth sliding portion covers the first strip sliding portion 161 and can slide along the first strip sliding portion 161 in the first direction or in a third direction opposite to the first direction, and the sixth sliding portion covers the second strip sliding portion 171 and can slide along the second strip sliding portion 171 in the first direction or in the third direction, so that the photovoltaic panel 2 can slide along the slide rail 11 in the first direction or in a direction opposite to the first direction.
[0040] Photovoltaic panels 2, also known as solar panels or solar cell panels, are structures that use the photoelectric effect to directly convert sunlight into electrical energy. When there are multiple photovoltaic panels 2, the multiple photovoltaic panels 2 can be distributed along the first direction and slidably connected to the slide rails 11 respectively, and the connection between two adjacent photovoltaic panels 2 can be detachable or fixed; the increase in the number of photovoltaic panels 2 increases the area of the light-receiving surface 21, so as to increase the photoelectric conversion amount.
[0041] The driving structure 3 can provide driving force to make the photovoltaic panel 2 slide relative to the slide rail 11 of the supporting structure 1. The driving structure 3 can be a structure that can generate power, such as a motor or a cylinder. During the sliding of the photovoltaic panel 2 relative to the supporting structure 1, the position of the photovoltaic panel 2 relative to the cleaning structure 4 can be cleaned by the cleaning structure 4; at the same time, since the photovoltaic panel 2 slides relative to the supporting structure 1, the position of the photovoltaic panel 2 relative to the overall photovoltaic power generation device changes, so that the weight of the photovoltaic power generation device corresponding to the original position of the photovoltaic panel 2 is reduced and the weight corresponding to the new position of the photovoltaic panel 2 is increased, that is, the weight relationship of the photovoltaic power generation device at different positions in the first direction changes, so that the photovoltaic power generation device can drift in the first direction.
[0042] The cleaning structure 4 is at least used to clean the light-receiving surface 21 of the photovoltaic panel 2 that moves to the corresponding side thereof. The cleaning here includes but is not limited to sweeping (such as the flexible bristles 411 sweeping the light-receiving surface 21, etc.), blowing (such as the roller brush 41 is hollow inside and connected to an air supply structure, and the gas sent out by the air supply structure is sent out through the air outlet holes in the hollow and the peripheral surface of the roller brush 41 to blow the light-receiving surface 21, etc.), washing (such as the water hole 412 spraying water to wash the light-receiving surface 21, etc.). The roller brush 41 corresponds to the light-receiving surface 21 side of the photovoltaic panel 2, and in the process of the photovoltaic panel 2 sliding relative to the support structure 1, the roller brush 41 rotates relative to the light-receiving surface 21 so that the light-receiving surface 21 can be cleaned through the flexible bristles 411 on the peripheral side of the roller brush 41. The first direction and the second direction meet the vertical condition, and the angle between the first direction and the second direction can be 90 degrees, or the angle between the first direction and the second direction can be close to 90 degrees to be considered relatively vertical, for example, the angle between the first direction and the second direction is 88 degrees, 89 degrees, 91 degrees, 92 degrees, etc. The flexible bristles 411 can be bristles made of silicone material, sponge material, etc., which can not only clean the light-receiving surface 21 of the photovoltaic panel 2, but also reduce the probability of scratching the light-receiving surface 21.
[0043] The control structure can control the driving structure 3 to control the driving process of the driving structure 3, and the driving process includes but is not limited to: the driving structure 3 provides the photovoltaic panel 2 with a driving force to slide relative to the support structure 1, does not provide the photovoltaic panel 2 with a driving force to slide relative to the support structure 1, etc. The control structure can be detachably arranged on the photovoltaic power generation device, such as: detachably arranged on the support structure 1, or it can be other structures independent of the photovoltaic power generation device (similar to the TV remote control that is independently arranged and can be remotely operated), or it can be other settings, so that the control structure can be moved to the water surface / land within a certain range from the photovoltaic panel 2 to remotely control the structure that needs to be controlled on the photovoltaic power generation device (hereinafter referred to as the first motor 45 in the cleaning structure 4, the second motor 32 in the driving structure 3, etc.).
[0044] In one example, a photovoltaic power generation device floats on the water, see Figures 1 to 5 As shown, the photovoltaic power generation device may include: a support structure 1, at least one photovoltaic panel 2, a driving structure 3, a cleaning structure 4 and a control structure, wherein the support structure 1 has a slide rail 11 extending along a first direction; a photovoltaic panel 2 is slidably connected to the slide rail 11; the driving structure 3 is respectively connected to the support structure 1 and the photovoltaic panel 2, and can provide a driving force for the photovoltaic panel 2 to slide relative to the support structure 1; the cleaning structure 4 includes: a roller brush 41, the roller brush 41 is arranged on the light receiving surface 21 of the photovoltaic panel 2, the roller brush 41 extends along a second direction that meets the perpendicular condition to the first direction, and the roller brush 41 can rotate on the light receiving surface 21 during the sliding of the photovoltaic panel 2 along the slide rail 11, so that the flexible bristles 411 on the side of the roller brush 41 clean the light receiving surface 21; the control structure is independent of other structures of the photovoltaic power generation device, and is connected to the drive structure 3 signal to control the driving process of the drive structure 3.
[0045] After the photovoltaic power generation device has been used for a period of time, the following operations can be performed;
[0046] S101: A worker located on land holds a control structure to remotely operate the control structure;
[0047] S102: The staff controls the driving structure 3 to start through the control structure, so that the driving structure 3 provides a driving force for the photovoltaic panel 2 to slide relative to the support structure 1, so that the photovoltaic panel 2 slides in a first direction along the slide rail 11 of the support structure 1 toward the cleaning structure 4;
[0048] S103 : When the photovoltaic panel 2 slides relative to the supporting structure 1 , the roller brush 41 rotates on the light-receiving surface 21 of the photovoltaic panel 2 , and the flexible bristles 411 clean the light-receiving surface 21 during the rotation.
[0049] When the staff observes that the photovoltaic panel 2 of the photovoltaic power generation device is blocked by trees or the like, or finds that the current photoelectric conversion efficiency is low, the following operations can be performed:
[0050] S201: A worker located on land holds a control structure to remotely operate the control structure;
[0051] S202: The staff controls the driving structure 3 to start (i.e., the driving structure 3 starts working) through the control structure, so that the driving structure 3 provides the photovoltaic panel 2 with a driving force to slide relative to the supporting structure 1, thereby making the photovoltaic panel 2 slide along the slide rail 11 of the supporting structure 1 in the first direction toward the cleaning structure 4; after sliding, the weight distribution of the photovoltaic power generation device at different positions along the first direction changes, so that the photovoltaic power generation device starts to move on the water surface along the first direction.
[0052] S203: The staff observes whether the photovoltaic panel 2 is still blocked by the trees or whether the photoelectric conversion efficiency is improved. If the photovoltaic panel 2 is out of the tree's shielding or the photoelectric conversion efficiency is improved, the driving structure 3 can be controlled to stop working. Otherwise, the driving structure 3 is maintained to continue working.
[0053] In this embodiment, the photovoltaic power generation device includes: a support structure 1, at least one photovoltaic panel 2, a driving structure 3, a cleaning structure 4 and a control structure. The support structure 1 can support the photovoltaic panel 2, the driving structure 3 and the cleaning structure 4. The photovoltaic panel 2 can slide relative to the support structure 1 under the drive of the driving structure 3, and during the sliding process, the roller brush 41 of the cleaning structure 4 can roll on the light-receiving surface 21 of the photovoltaic panel 2, so that the flexible bristles 411 on the side of the roller brush 41 can sweep the light-receiving surface 21 of the photovoltaic panel 2, thereby ensuring the photoelectric conversion efficiency of the photovoltaic panel 2; in addition, the control structure can remotely control the driving process of the driving structure 3, such as: providing a driving force for the photovoltaic panel 2 to slide relative to the support structure 1, not providing a driving force for the photovoltaic panel 2 to slide relative to the support structure 1, etc., so as to realize long-distance control of the cleaning process of the photovoltaic panel 2 on the water surface.
[0054] In some embodiments, the length of the flexible bristles 411 can be greater than the distance between the roller brush 41 and the light-receiving surface 21 opposite to the roller brush 41; when the photovoltaic panel 2 slides relative to the support structure 1, the flexible bristles 411 are contacted to bend and deform the flexible bristles 411, thereby driving the flexible bristles 411 to move, thereby achieving the rolling of the roller brush 41 relative to the light-receiving surface 21; at the same time, when the photovoltaic panel 2 continues to slide, the flexible bristles 411 want to separate from the light-receiving surface 21 to restore the original state. During this process, the ends of the flexible bristles 411 away from the roller brush 41 straighten to pass through the light-receiving surface 21, thereby achieving the cleaning of the light-receiving surface 21. In this setting, the rotational force of the roller brush 41 comes from the sliding force of the photovoltaic panel 2, so that the structural setting that drives the roller brush 41 to rotate can be reduced, so as to simplify the structure of the photovoltaic power generation device and reduce the manufacturing cost of the photovoltaic power generation device.
[0055] In some embodiments, see Figures 1 to 4 As shown, the roller brush 41 is hollow, and a plurality of water holes 412 connected to the hollow are arranged on its peripheral surface; the cleaning structure 4 also includes: a water pump 42, a switching cylinder 43 and a water inlet pipe 44; the water pump 42 has a water inlet and a water outlet; the switching cylinder 43 is connected to the water outlet and one end of the hollow of the roller brush 41 along the second direction, and the radial dimension of the switching cylinder 43 is larger than the radial dimension of the hollow; one end of the water inlet pipe 44 is connected to the water inlet, and the other end extends under the water surface; wherein, the control structure is also connected to the signal of the cleaning structure 4 to control the cleaning process of the cleaning structure 4.
[0056] That is to say, the roller brush 41 has a cavity inside, and the peripheral surface of the roller brush 41 is not only provided with flexible bristles 411, but also provided with water holes 412, and the water pump 42 of the cleaning structure 4 can transport the water in the water area where the photovoltaic power generation device is located through the water inlet pipe 44, the water inlet of the water pump 42, the water outlet of the water pump 42 and the adapter tube 43 to the cavity (i.e., hollow) of the roller brush 41, and then spray it to the light-receiving surface 21 through the water holes 412 on the peripheral surface, so that in the process of cleaning the light-receiving surface 21 of the photovoltaic panel 2 by the flexible bristles 411 of the cleaning structure 4, the water sprayed through the water holes 412 can wash the light-receiving surface 21 of the photovoltaic panel 2, thereby improving the cleaning effect.
[0057] Moreover, since the radial dimension of the adapter tube 43 is larger than the radial dimension of the cavity of the roller brush 41, and the adapter tube 43 is located at one end of the roller brush 41 along the second direction, the adapter tube 43 can store a certain amount of water and increase the weight of the location where it is located, so that the weight of the photovoltaic power generation device at different locations in the second direction changes, so that the photovoltaic power generation device can drift in the second direction. In the specific implementation process, the drifting direction of the photovoltaic power generation device can be adjusted by controlling the working time of the drive structure 3 and the working time of the water pump 42, for example: control the driving structure 3 to work for the first time, control the water pump 42 to work for the second time, and continue the exchange cycle, so that the photovoltaic power generation device moves a distance in the first direction, then moves a distance in the second direction, and then moves a distance in the first direction, ..., until the photovoltaic power generation device moves to a designated position and stops, and the designated position can be a position that is not blocked by trees or other positions with high conversion efficiency.
[0058] In some embodiments, see Figure 1 and Figure 2 As shown, there is an angle between the plane where the light receiving surface 21 is located and the plane where the water surface is located. It can also be said that the light receiving surface 21 is inclined to the horizontal plane, so that during the cleaning process such as sweeping and washing, the dust, sewage, etc. swept down can flow along the light receiving surface 21 into the water, so as to further improve the cleaning effect.
[0059] In some embodiments, see Figures 1 to 4 As shown, the support structure 1 includes: two fixing members 12, a light intensity sensor 13 and a wireless signal transmitter 14; the two fixing members 12 are respectively arranged at the two ends of the photovoltaic panel 2 along the second direction, and at least a part of the fixing members 12 is provided with a light-transmitting area 121; the light intensity sensor 13 is arranged on the fixing member 12 on a side corresponding to the photovoltaic panel 2 facing away from the light-receiving surface 21, and is opposite to the light-transmitting area 121; the wireless signal transmitter 14 is electrically connected to the light intensity sensor 13, and is connected to the control structure signal.
[0060] See also Figure 1 and Figure 4As shown, the two fixing members 12 may be two fixing bars, which are respectively fixedly connected to the two ends of the photovoltaic panel 2 extending along the second direction, and at least part of the fixing member 12 is provided with a light-transmitting area 121, so that the light intensity sensor 13 located below the fixing member 12 can collect the light transmittance of the fixing member 12 through the light-transmitting area 121. In the case where the collected light transmittance is low, it can be known that there are more pollutants such as dust and dirt on the upper surface of the fixing member 12, and the light-receiving surface 21 of the photovoltaic panel 2 corresponds to the upper surface of the fixing member 12. In the case where there are more pollutants such as dust and dirt on the upper surface of the fixing member 12, there are also relatively more pollutants such as dust and dirt on the light-receiving surface 21 of the photovoltaic panel 2. At this time, the driving structure 3 and the cleaning structure 4 can be controlled by the control structure to clean the light-receiving surface 21 of the photovoltaic panel 2. The fixing member 12 may also be arranged in a rod-shaped form.
[0061] The light intensity sensor 13, also called a photosensor or illuminometer, is a device capable of detecting and quantifying the ambient light intensity, and may be a photodiode, a phototransistor, a photocell, etc. The wireless signal transmitter 14 may be a WiFi transmitter, a Bluetooth transmitter, etc., and is used to send the light intensity obtained by the light intensity sensor 13 to the control structure, so that the staff can judge whether the photovoltaic panel 2 needs to be cleaned.
[0062] In this embodiment, two fixing members 12 are respectively arranged at the two ends of the photovoltaic panel 2 along the second direction to protect the two ends of the photovoltaic panel 2 along the second direction; the light intensity sensor 13 can provide a basis for whether the cleaning structure 4 performs a cleaning operation, so that the staff can judge whether to perform a cleaning operation on the photovoltaic panel 2 based on the basis; the wireless signal transmitter 14 can transmit the light intensity detected by the light intensity sensor 13 to the control structure to realize remote control of the cleaning process.
[0063] In some embodiments, see Figures 1 to 4 As shown, the support structure 1 may also include: a bracket 15, a first support member 16 and a second support member 17; the bracket 15 is provided with a first connecting portion 151 and a second connecting portion 152 at both ends along the second direction; the first support member 16 is connected to the first connecting portion 151 and has a first strip sliding portion 161; the second support member 17 is connected to the second connecting portion 152 and has a second strip sliding portion 171, the first strip sliding portion 161 and the second strip sliding portion 171 are opposite to each other to cooperate to form a slide rail 11; wherein, part of the photovoltaic panel 2 is slidably connected to the first strip sliding portion 161 and part of it is slidably connected to the second strip sliding portion 171 so as to be able to slide relative to the slide rail 11, and both ends of the roller brush 41 are rotatably connected to the first support member 16 and the second support member 17 respectively.
[0064] In one example, see Figure 1 and Figure 2 As shown, the bracket 15 may include: a bottom plate 153, a plurality of first connection parts 151 and a plurality of second connection parts 152. The bottom plate 153 may float on the water surface or float on the water surface through the buoyancy member 5 described below. The first connection part 151 and the second connection part 152 are both support columns. The bottoms of the first connection part 151 and the second connection part 152 are both connected to the upper surface of the bottom plate 153, and the plurality of first connection parts 151 are arranged in a row along the first direction, and the plurality of second connection parts 152 are arranged in a row along the first direction; the first support member 16 is connected to the plurality of first connection parts 151, and the second support member 17 is connected to the plurality of second connection parts 152. The surfaces of the first support member 16 and the second support member 17 facing each other are respectively provided with a first strip sliding portion 161 and a second strip sliding portion 171, and the first strip sliding portion 161 and the second strip sliding portion 171 are both in the form of strip grooves; a portion of the photovoltaic panel 2 extends into the first strip sliding portion 161 and is slidably connected to the second strip sliding portion 171, and a portion of the photovoltaic panel 2 extends into the second strip sliding portion 171 and is slidably connected to the second strip sliding portion 171. At the same time, the first support member 16 and the second support member 17 are rotatably connected to the two ends of the roller brush 41 to support the roller brush 41. Here, in the case where the photovoltaic panel 2 is tilted to the horizontal plane, this can be achieved by the height inconsistency between the first connection portion 151 and the second connection portion 152.
[0065] In this embodiment, the support 15, the first support member 16 and the second support member 17 of the support structure 1 are simple in structure, easy to manufacture and low in cost.
[0066] In some embodiments, see Figures 1 to 4 As shown, the cleaning structure 4 further includes: a first motor 45, the first motor 45 is arranged on the side of the first support member 16 away from the second support member 17, and the first motor 45 shaft of the first motor 45 passes through the first support member 16 and is connected to the roller brush 41 to drive the roller brush 41 to rotate relative to the light receiving surface 21. In other words, the rotational force of the roller brush 41 relative to the photovoltaic panel 2 can be the driving force on the roller brush 41 during the sliding process of the photovoltaic panel 2 relative to the support structure 1, or it can be the driving force of the first motor 45. When the first motor 45 outputs the rotational force to the roller brush 41, the rotation speed of the roller brush 41 can be controlled by controlling the output power of the first motor 45.
[0067] In some embodiments, see Figure 1As shown, the driving structure 3 includes: a rotating shaft 31, a second motor 32, two gears 33 and two racks 34; the two ends of the rotating shaft 31 are respectively connected to the first support member 16 and the second support member 17 for rotation; the second motor 32 is arranged on the side of the first support member 16 away from the second support member 17, and the second motor 32 shaft of the second motor 32 passes through the first support member 16 and is connected to the rotating shaft 31; the two gears 33 are respectively sleeved on the two ends of the rotating shaft 31; the two racks 34 are respectively arranged on the two fixing members 12 and mesh with the two gears 33. When the control structure controls the driving structure 3 to start so that the second motor 32 works, the rotating shaft 31 rotates, so that the two gears 33 at the two ends of the rotating shaft 31 rotate and drive the racks 34 to move relative to the gears 33, thereby realizing the movement of the fixing member 12 connected to the racks 34 relative to the support structure 1, and the photovoltaic panel 2 is connected to the two fixing members 12, so that the photovoltaic panel 2 can slide relative to the support structure 1.
[0068] In this embodiment, the arrangement of the rotating shaft 31, the second motor 32, the gear 33 and the rack 34 of the driving structure 3 is simple and easy to manufacture, and the gear 33 and the rack 34 are meshed with each other to make the sliding of the photovoltaic panel 2 relative to the supporting structure 1 smoother.
[0069] In some embodiments, the photovoltaic power generation device may further include: a power storage structure (not shown in the figure), which is electrically connected to the photovoltaic panel 2 and connected to the power-consuming components on the photovoltaic power generation device. In this way, the electric energy generated by the photovoltaic panel 2 can be stored in the power storage structure (such as a battery, etc.) to meet the power needs of the power-consuming components on the photovoltaic power generation device (such as the first motor 45 and the water pump 42 of the cleaning structure 4, the second motor 32 of the driving structure 3, etc.). Of course, the electric energy in the power storage structure can also be provided to the power needs of the power-consuming equipment around the photovoltaic power generation device (such as lighting equipment, charging of electrical appliances, etc.), and can also be provided to a certain range of power-consuming equipment.
[0070] In some embodiments, see Figure 2 As shown, the photovoltaic power generation device may further include: a buoyancy member 5 and a counterweight member 6, wherein the buoyancy member 5 is disposed below the supporting structure 1 and floats on the water surface; the counterweight member 6 is connected to the supporting structure 1 or the cleaning structure 4 and is located below the water surface.
[0071] The buoyancy member 5 may be a floating airbag or other structure, which floats on the water surface, so as to support and float the photovoltaic power generation device on the water surface. The counterweight member 6 (such as a stone) is connected to the support structure 1 or the cleaning structure 4 and is located under the water surface, so as to improve the stability of the photovoltaic power generation device floating on the water surface; for example: Figure 1 and Figure 2As shown, the counterweight 6 is connected to the water inlet pipe 44 of the cleaning structure 4 and is located under the water surface, which can not only improve the stability of the photovoltaic power generation device floating on the water surface, but also make the inlet of the water inlet pipe 44 submerged below the water surface, so as to reduce the probability that the water inlet pipe 44 floats on the water surface and causes the water pump 42 to fail to normally supply water when working.
[0072] Second aspect
[0073] The present disclosure provides a cleaning method for cleaning the photovoltaic panel 2 of the photovoltaic power generation device of any embodiment of the first aspect, see Figure 5 As shown, the cleaning method includes:
[0074] S301: Remote operation control structure;
[0075] S302: starting the driving structure 3 by controlling the control structure, so that the driving structure 3 provides a driving force for the photovoltaic panel 2 to slide relative to the supporting structure 1;
[0076] S303 : When the photovoltaic panel 2 slides relative to the supporting structure 1 , the roller brush 41 rotates on the light-receiving surface 21 of the photovoltaic panel 2 , so that the flexible bristles 411 on the circumference of the roller brush 41 clean the light-receiving surface 21 .
[0077] It should be noted that the photovoltaic power generation device in the cleaning method provided by the present disclosure is similar to the description of the photovoltaic power generation device embodiment described above, and has similar beneficial effects as the photovoltaic power generation device embodiment described above. For technical details not disclosed in the cleaning method embodiment of the present disclosure, please refer to the description of the photovoltaic power generation device embodiment in the present disclosure for understanding, and no further description will be given here.
[0078] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.
[0079] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.
Claims
1. A photovoltaic power generation device, floating on the water surface, characterized in that: include: A support structure (1) having a slide rail (11) extending along a first direction; At least one photovoltaic panel (2) is slidably connected to the slide rail (11); A driving structure (3) connected to the supporting structure (1) and the photovoltaic panel (2) respectively, and capable of providing a driving force for the photovoltaic panel (2) to slide relative to the supporting structure (1); A cleaning structure (4), comprising: a roller brush (41), the roller brush (41) being arranged on the light-receiving surface (21) of the photovoltaic panel (2), the roller brush (41) extending in a second direction which satisfies a perpendicular condition to the first direction, and the roller brush (41) being capable of rotating on the light-receiving surface (21) when the photovoltaic panel (2) slides along the slide rail (11), so that the flexible bristles (411) on the peripheral side of the roller brush (41) clean the light-receiving surface (21); The control structure is connected to the driving structure (3) via signals to control the driving process thereof.
2. The photovoltaic power generation device according to claim 1, characterized in that: The roller brush (41) is hollow, and a plurality of water holes (412) communicating with the hollow part are arranged on its peripheral surface; The cleaning structure (4) further comprises: a water pump (42), a switching cylinder (43) and a water inlet pipe (44); The water pump (42) has a water inlet and a water outlet; The adapter tube (43) is connected to the water outlet and one end of the hollow of the roller brush (41) along the second direction, and the radial dimension of the adapter tube (43) is greater than the radial dimension of the hollow; One end of the water inlet pipe (44) is connected to the water inlet, and the other end extends below the water surface; The control structure is also connected to the cleaning structure (4) via a signal so as to control the cleaning process of the cleaning structure (4).
3. The photovoltaic power generation device according to claim 1 or 2, characterized in that: There is an angle between the plane where the light receiving surface (21) is located and the plane where the water surface is located.
4. The photovoltaic power generation device according to claim 3, characterized in that: The support structure (1) comprises: two fixing members (12), a light intensity sensor (13) and a wireless signal transmitter (14); The two fixing members (12) are respectively arranged at two ends of the photovoltaic panel (2) along the second direction, and at least a portion of the fixing members (12) is provided with a light-transmitting area (121); The light intensity sensor (13) is arranged on the fixing member (12) on a side of the photovoltaic panel (2) that is opposite to the light receiving surface (21) and is opposite to the light transmission area (121); The wireless signal transmitter (14) is electrically connected to the light intensity sensor (13) and is signal-connected to the control structure.
5. The photovoltaic power generation device according to claim 4, characterized in that: The support structure (1) further comprises: a bracket (15), a first support member (16) and a second support member (17); The bracket (15) is provided with a first connecting portion (151) and a second connecting portion (152) at two ends along the second direction respectively; The first supporting member (16) is connected to the first connecting portion (151) and has a first strip-shaped sliding portion (161); The second support member (17) is connected to the second connecting portion (152) and has a second strip-shaped sliding portion (171); the first strip-shaped sliding portion (161) and the second strip-shaped sliding portion (171) are opposite to each other to cooperate to form the slide rail (11); Part of the photovoltaic panel (2) is slidably connected to the first strip sliding portion (161) and part of it is slidably connected to the second strip sliding portion (171) so as to be able to slide relative to the slide rail (11), and both ends of the roller brush (41) are rotatably connected to the first support member (16) and the second support member (17), respectively.
6. The photovoltaic power generation device according to claim 5, characterized in that: The cleaning structure (4) further comprises: a first motor (45), which is arranged on a side of the first support member (16) away from the second support member (17), and a first motor (45) shaft of the first motor (45) passes through the first support member (16) and is connected to the roller brush (41) to drive the roller brush (41) to rotate relative to the light receiving surface (21).
7. The photovoltaic power generation device according to claim 5, characterized in that: The driving structure (3) comprises: a rotating shaft (31), a second motor (32), two gears (33) and two racks (34); Both ends of the rotating shaft (31) are rotatably connected to the first supporting member (16) and the second supporting member (17) respectively; The second motor (32) is arranged on a side of the first support member (16) away from the second support member (17), and a second motor (32) shaft of the second motor (32) passes through the first support member (16) and is connected to the rotating shaft (31); The two gears (33) are respectively sleeved on two ends of the rotating shaft (31); The two racks (34) are respectively arranged on the two fixing members (12) and are respectively meshed with the two gears (33).
8. The photovoltaic power generation device according to claim 1, characterized in that: Also includes: The power storage structure is electrically connected to the photovoltaic panel (2) and is connected to power-consuming components on the photovoltaic power generation device.
9. The photovoltaic power generation device according to claim 1, characterized in that: Also includes: A buoyancy member (5) is arranged below the supporting structure (1) and floats on the water surface; A counterweight (6) is connected to the supporting structure (1) or the cleaning structure (4) and is located below the water surface.
10. A cleaning method for cleaning a photovoltaic panel (2) of a photovoltaic power generation device according to any one of claims 1 to 9, characterized in that: include: Remotely operated control structures; The driving structure (3) is controlled to start by the control structure, so that the driving structure (3) provides the photovoltaic panel (2) with a driving force to slide relative to the supporting structure (1); When the photovoltaic panel (2) slides relative to the support structure (1), the roller brush (41) rotates on the light-receiving surface (21) of the photovoltaic panel (2), so that the flexible bristles (411) on the circumference of the roller brush (41) clean the light-receiving surface (21).