Photovoltaic support and photovoltaic system

Abstract

The invention provides a photovoltaic support and a photovoltaic system. The photovoltaic support comprises a support body, a brush head, a first driving assembly and a second driving assembly. The brush head is movably arranged on the frame body and has a moving stroke moving along the opposite end faces of the frame body, and the moving stroke is provided with an initial end and a tail end. The first driving assembly comprises a driving block, a driven block and a brake block, the driving block and the driven block are arranged on the frame body and the brush head correspondingly, the driving block is in linkage with the brush head through the driven block to move from the initial end to the tail end, and the brake block is arranged at the tail end and used for releasing cooperation of the driving block and the driven block; the brush head moves from the tail end to the initial end; the second driving assembly comprises a receiving piece and a spray head which are connected, and the receiving piece is arranged at the tail end and used for enabling the spray head to be in an opening and closing state. The technical problems that in the prior art, the cleaning efficiency is low, the water resource consumption is large, and the cleaning mode is single are solved.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic cleaning technology, and more particularly to a photovoltaic bracket and a photovoltaic system. Background Technology

[0002] With the rapid development of photovoltaic power generation technology, the surface cleaning of photovoltaic modules has received increasing attention. Traditional cleaning methods mostly employ manual rinsing, mechanical brushing, or fixed spraying devices, which suffer from low cleaning efficiency, high water consumption, and incomplete cleaning. For example, manual cleaning is time-consuming and labor-intensive and cannot be maintained frequently; fixed spraying systems are prone to water waste due to continuous spraying and have limited practicality in arid regions.

[0003] Furthermore, existing cleaning equipment often requires sweeping and spraying to be completed in separate steps, leading to longer cleaning cycles. Some improvement solutions attempt to integrate sweeping and spraying functions, but still suffer from drawbacks such as complex structure and limited modes. For example, using independent drive systems to control sweeping and spraying separately results in bulky equipment and increased energy consumption; or, although sweeping and spraying can be linked, the inability to flexibly switch between dry cleaning modes (such as electrostatic dust removal) and wet cleaning modes based on the type of dirt leads to indiscriminate water spraying in lightly polluted scenarios, resulting in resource waste. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a photovoltaic bracket and a photovoltaic system, which solve the technical problems of low cleaning efficiency, high water consumption, and limited cleaning modes in existing technologies.

[0005] According to an embodiment of the present invention, a photovoltaic support includes:

[0006] Frame;

[0007] The brush head is movably mounted on the frame and has a movable stroke that moves along opposite end faces of the frame. The movable stroke has an initial end and an end.

[0008] The first drive assembly includes an active block, a driven block, and a braking block. The active block and the driven block are respectively disposed on the frame and the brush head. Under the action of external force, the active block moves the brush head from the initial end to the end through the linkage of the driven block. The braking block is disposed at the end and is used to release the cooperation between the active block and the driven block so that the brush head moves from the end to the initial end.

[0009] The second drive assembly includes a receiver and a nozzle connected to each other. The receiver is located at the end and abuts against the receiver when the drive block moves to the end, thereby putting the nozzle in an open state.

[0010] Preferably, the frame is provided with a first slide rail and a second slide rail, and the driving block and the driven block are slidably disposed on the first slide rail and the second slide rail, respectively.

[0011] Preferably, the active block and the driven block are arranged opposite to each other, and their opposite surfaces are respectively provided with a first connecting protrusion and a second connecting protrusion, wherein the first connecting protrusion and the second connecting protrusion can be detachably connected.

[0012] Preferably, the second connecting protrusion is retractably provided on the driven block, and its retraction direction is perpendicular to the movement direction of the driven block.

[0013] Preferably, the second connecting protrusion and the brake block are respectively provided with a guide slope and a limiting slope. When the guide slope abuts against the limiting slope, it is used to cause the second connecting protrusion to retract inward and to separate the first connecting protrusion from the second connecting protrusion.

[0014] Preferably, a spring is provided between the second connecting protrusion and the driven block.

[0015] Preferably, the guide ramp and the limiting ramp are arranged parallel to each other; and / or

[0016] The second connecting protrusion has an abutting surface for connecting the first connecting protrusion.

[0017] Preferably, a floating element is provided between the driven block and the frame, and the floating direction of the floating element is the same as or opposite to the moving stroke direction of the driven block.

[0018] Preferably, along the direction from the initial end to the end, the frame is provided with a plurality of magnetic attracting elements at intervals. The magnetic attracting elements retain magnetism when the power is off, and are used to attract the driven block. When the power is on, the magnetism is eliminated.

[0019] On the other hand, according to an embodiment of the present invention, a photovoltaic system is also provided, including the photovoltaic support described above.

[0020] Compared with existing technologies, the present invention has the following advantages: Through the coordinated operation of the first and second drive components, the brush head can complete the sweeping and spraying actions in one round trip, shortening the cleaning time and avoiding the time loss of step-by-step operations; at the same time, by controlling the movement range of the active block, the driven block can always avoid contact with the braking block, thus forming a dry cleaning mode. The continuous reciprocating sweeping of the brush head can remove floating dust from the surface of photovoltaic modules, which is suitable for arid or water-saving areas; conversely, when stubborn stains or deep cleaning are required, the braking block releases the cooperation between the active and driven blocks, and the active block triggers the spray head to spray, so that the brush head can be rinsed with water during the reset process, achieving dual cleaning of "sweeping + spraying", which can thoroughly remove dirt and improve cleaning efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a photovoltaic support in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the structure of the first driving component and the brush head in one embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the second connecting protrusion in one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the photovoltaic support structure from another angle in one embodiment of the present invention.

[0026] In the picture:

[0027] 1. Frame; 101. First slide rail; 102. Second slide rail;

[0028] 2. Brush head;

[0029] 3. First drive assembly; 301. Driving block; 302. Driven block; 303. Braking block; 304. Limiting ramp;

[0030] 4. Second drive assembly; 401. Receiver; 402. Nozzle;

[0031] 5. First connecting protrusion;

[0032] 6. Second connecting protrusion; 601. Guide slope; 602. Abutment surface;

[0033] 7. Spring;

[0034] 8. Floating components;

[0035] 9. Magnetic components. Detailed Implementation

[0036] It should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The following will be combined with the appendix Figure 1-5The present invention will be further described below.

[0038] In embodiments of the present invention, such as Figures 1-3 As shown, the photovoltaic support includes: 1 in the frame diagram, a brush head 2, a first drive assembly 3, and a second drive assembly 4; the brush head 2 is movably disposed in the frame diagram 1 and has a movable stroke that moves along the opposite end face of the frame diagram 1, the movable stroke having an initial end and an end end; the first drive assembly 3 includes an active block 301, a driven block 302, and a braking block 303, the active block 301 and the driven block 302 being respectively disposed in the frame diagram 1 and the brush head 2, and under the action of external force, the active block 301... Block 301, through the driven block 302, moves the brush head 2 from the initial end to the end. The braking block 303 is located at the end and is used to release the engagement between the driving block 301 and the driven block 302, so that the brush head 2 moves from the end to the initial end. The second drive assembly 4 includes a receiver 401 and a nozzle 402 connected to each other. The receiver 401 is located at the end. When the driving block 301 moves to the end, it abuts against the receiver 401, so that the nozzle 402 is in the open state.

[0039] Specifically, in this embodiment of the invention, in the frame diagram: 1 is formed with an installation opening for installing photovoltaic modules. For example... Figure 1 and Figure 5 As shown, multiple mounting ports can be set at point 1 in the same frame diagram, or multiple mounting ports can be set at point 1 in multiple frame diagrams. The purpose is to install more photovoltaic modules to form a photovoltaic cluster. On the other hand, in order to make the installation angle of the photovoltaic modules flexible and adjustable, this embodiment uses an angle adjustment component to adjust point 1 in the frame diagram to a suitable angle to adapt to the angle of illumination. At the same time, when the photovoltaic modules are installed at the mounting port of point 1 in the frame diagram, they are set at a certain tilt angle to improve their absorption capacity.

[0040] In this embodiment of the invention, a brush head 2 is provided at location 1 in the frame diagram. The brush head 2 is movably positioned relative to location 1 in the frame diagram, allowing it to have a travel stroke with an initial end and an end end. Thus, when the brush head 2 moves from the initial end to the end of its travel stroke, it can clean the photovoltaic modules at the mounting opening; conversely, it can move away from the initial end and towards the end. Furthermore, to improve the cleaning ability of the brush head 2, it can be driven by a power component (not shown) to continuously rotate. During rotation, it can accelerate the removal of dust adhering to the surface of the photovoltaic modules, improving cleaning efficiency. Simultaneously, the brush head 2 is made of a soft material to avoid scratching / damaging the photovoltaic modules. Figure 1As shown, in this embodiment, the initial end of the aforementioned active stroke is positioned near the high end of 1 in the frame diagram, and its end is positioned near the low end of 1 in the frame diagram. Of course, in other embodiments, the initial end and the end of the active stroke may also be positioned near the left and right ends of 1 in the frame diagram, respectively.

[0041] In this embodiment of the invention, in order to drive the brush head 2 from the initial end to the final end, the first driving component 3 includes an active block 301 and a driven block 302. The active block 301 is externally connected to a driving source, and the driven block 302 is installed on the brush head 2. Thus, when the active block 301 contacts the driven block 302, the driven block 302 can drive the brush head 2 to move from the initial end to the final end, thereby cleaning the dust on the surface of the photovoltaic module. Simultaneously, to improve the stability of the brush head 2, this embodiment provides a driven block 302 at each end of the brush head 2, so that the two symmetrically arranged driven blocks 302 move synchronously at point 1 in the frame diagram, thereby ensuring that both ends of the brush head 2 move continuously and stably at point 1 in the frame diagram. On the other hand, in order to reset the brush head 2 from the end to the initial end, the first drive component 3 in this embodiment also includes a braking block 303 located at the end. The braking block 303 is fixed to the frame shown in Figure 1. When the driven block 302 moves to abut against the braking block 303, the braking block 303 can release the engagement between the driving block 301 and the driven block 302, thereby separating the driving block 301 and the driven block 302. At this time, the driven block 302 is not driven by external force and can be reset to the initial end under the action of gravity, while cleaning the surface of the photovoltaic module again. Of course, a storage box is set at the initial end, and the brush head 2 can be stored in the storage box when not in use to avoid long-term exposure to the external environment and the accumulation of dust.

[0042] In this embodiment of the invention, the second drive assembly 4 includes a receiver 401 and a nozzle 402 connected to each other. The receiver 401 is installed at the end and is used to control the opening and closing of the nozzle 402. The nozzle 402 can be set at any position in the frame diagram 1 as needed (e.g., ...). Figure 1As shown, in this embodiment, the nozzle 402 is positioned at the high end of frame 1 in the frame diagram; furthermore, the number of nozzles 402 is unlimited (used to increase the spraying range). Thus, when the active block 301 reaches its end, it can act as a trigger, causing it to abut against the receiver 401. The receiver 401 receives a pressing signal and drives the nozzle 402 to open, spraying water onto the photovoltaic module surface. Simultaneously, the brush head 2 moves across the photovoltaic module surface, thus forming a dual cleaning mode of sweeping and spraying. Conversely, when the active block 301 releases the receiver 401, it controls the nozzle 402 to close. Therefore, based on the moving distance of the active block 301, this bracket can form two cleaning modes for the photovoltaic module. The first cleaning mode is the dual cleaning mode described above, where the active block 301 fully reaches its end and abuts against the receiver 401, performing a preliminary cleaning of the photovoltaic module surface before spraying, removing dust before spraying, improving cleaning efficiency and saving costs. The second cleaning mode is the dry cleaning mode. In this mode, the external drive source controls the active block 301 to move closer to the end and the receiver 401 without contacting them. At this time, since the receiver 401 does not receive the pressing command, the nozzle 402 will not spray water. The active block 301 is always connected to the driven block 302, so that the active block 301 can drive the brush head 2 to move back and forth between the initial end and the end through the driven block 302 to clean the dust on the surface of the photovoltaic module.

[0043] In this embodiment, the brush head 2 is driven to move relative to the photovoltaic module by the cooperation of the active block 301 and the driven block 302 to clean the dust adhering to its surface. The cooperation between the active block 301 and the driven block 302 is released when the driven block 302 abuts against the braking block 303, thus making the connected active block 301 and driven block 302 independent. This allows the driven block 302 and the brush head 2 to return from the end to the beginning under the action of gravity or other external forces. Furthermore, the opening of the nozzle 402 can be controlled by the abutting of the active block 301 against the receiving element 401, forming a dual cleaning mode during the synchronous movement of the brush head 2. In addition, the cleaning mode can be adjusted by controlling the displacement of the active block 301. For areas with less dust or drought, a dry cleaning mode can be used to make reasonable use of water resources. Simultaneously, the nozzle 402 is only triggered to open when the active block 301 reaches the end and automatically closes during the reset process, avoiding continuous water spraying and further reducing water consumption.

[0044] like Figure 1As shown, in one embodiment, the frame diagram 1 includes a first slide rail 101 and a second slide rail 102. The active block 301 and the driven block 302 are slidably disposed on the first slide rail 101 and the second slide rail 102, respectively. Specifically, in order to enable the active block 301 and the driven block 302 to slide back and forth at point 1 in the frame diagram, this embodiment uses a first slide rail 101 and a second slide rail 102 spaced apart at point 1 in the frame diagram. The two slide rails extend in the same direction, allowing the active block 301 and the driven block 302 to slide on the first slide rail 101 and the second slide rail 102, respectively, thereby preventing the active block 301 and the driven block 302 from getting stuck. Furthermore, the consistent sliding direction of both enables the active block 301 to cooperate with the receiving member 401, and the driven block 302 to cooperate with the braking block 303.

[0045] like Figure 2 , Figure 3 As shown, in one embodiment, the active block 301 and the driven block 302 are arranged opposite to each other, and their opposite surfaces are respectively provided with a first connecting protrusion 5 and a second connecting protrusion 6. The first connecting protrusion 5 and the second connecting protrusion 6 are detachably connected. Specifically, from the initial end to the end direction, the active block 301 and the driven block 302 are connected to form a relatively static whole; conversely, from the end to the initial end direction, the active block 301 and the driven block 302 are separated, so that the two are arranged independently. In order to make the active block 301 and the driven block 302 detachably connected, this embodiment provides the first connecting protrusion 5 and the second connecting protrusion 6 at the active block 301 and the driven block 302 respectively, so that the two connecting protrusions are detachably connected. That is, when the first connecting protrusion 5 and the second connecting protrusion 6 abut against each other, the driven block 302 can move the brush head 2 from the initial end to the end through the two connecting protrusions during the movement of the active block 301; conversely, when the first connecting protrusion 5 and the second connecting protrusion 6 separate, the active block 301 and the driven block 302 are independent of each other, and can thus perform corresponding actions respectively.

[0046] Further, in one embodiment, the second connecting protrusion 6 is retractably disposed on the driven block 302, and its retraction direction is perpendicular to the movement direction of the driven block 302. Specifically, in order to achieve a separable connection between the first connecting protrusion 5 and the second connecting protrusion 6, this embodiment provides a notch at one end of the driven block 302 relative to the driving block 301, so that the second connecting protrusion 6 is retractably disposed at the notch, and its retraction direction is perpendicular to the movement direction of the driven block 302; when an external force drives the second connecting protrusion 6 to retract, the first connecting protrusion 5 and the second connecting protrusion 6 can be separated. Preferably, as follows... Figures 2-4As shown, the second connecting protrusion 6 and the brake block 303 are respectively provided with a guide slope 601 and a limiting slope 304. When the guide slope 601 abuts against the limiting slope 304, it is used to cause the second connecting protrusion 6 to retract inward and to separate the first connecting protrusion 5 from the second connecting protrusion 6.

[0047] Specifically, the guide slope 601 and the limiting slope 304 are arranged opposite to each other, so that when the guide slope 601 of the driven block 302 moves to abut against the limiting slope 304, one end is restricted by the limiting slope 304 and the other end is restricted by the first connecting protrusion 5, thereby causing the second connecting protrusion 6 to retract. At this time, the first connecting protrusion 5 can bypass the second connecting protrusion 6, allowing the two to separate and become independent. Of course, to ensure that the brush head 2 can make uniform contact with all parts of the photovoltaic module, and to avoid a situation where the top part of the photovoltaic module cannot contact the brush head 2 or has poor contact because the corresponding components are all installed at the end; for example... Figure 2 As shown, in this embodiment, a clearance opening is provided at one end of the braking block 303, and the receiving component 401 is placed (or near) the other end of the braking block 303. Thus, when the driven block 302 reaches its end, its guide slope 601 abuts against the limiting slope 304, causing the first connecting protrusion 5 and the second connecting protrusion 6 to separate. Then, the driving block 301 continues forward, passing through the aforementioned clearance opening before abutting against the receiving component 401. That is, in the dual-cleaning mode, the displacement of the driving block 301 is greater than the displacement of the driven block 302, thus avoiding the formation of cleaning dead zones for the photovoltaic modules at the end due to installation position limitations. Of course, the installation position can also be reasonably adjusted according to the dimensions of each component, which will not be detailed here.

[0048] like Figure 2 , Figure 3 As shown, in one embodiment, a spring 7 is provided between the second connecting protrusion 6 and the driven block 302. Specifically, in order to achieve the retraction of the second connecting protrusion 6 and the reset of the second connecting protrusion 6 after the separation of the guide slope 601 and the limiting slope 304, this embodiment provides a spring 7 in the aforementioned notch, so that the two ends of the spring 7 can respectively abut against the driven block 302 and the second connecting protrusion 6. Thus, the spring 7 can be compressed by the pressure of the limiting slope 304, and the second connecting protrusion 6 can be reset by the spring 7 after the separation of the driven block 302 and the brake block 303. When the driven block 302 is back at the initial end, the driving block 301 and the first connecting protrusion 5 also move to the initial end. The first connecting protrusion 5 causes the second connecting protrusion 6 to retract and move below it, so as to drive the driven block 302 to move again. Preferably, the guide slope 601 and the limiting slope 304 are arranged parallel to each other. The second connecting protrusion 6 has an abutment surface 602 for connecting the first connecting protrusion 5.

[0049] like Figure 2 , Figure 3 As shown, in one embodiment, a floating element 8 is provided between the driven block 302 and the frame 1 in the diagram. The floating direction of the floating element 8 is the same as or opposite to the travel direction of the driven block 302. Specifically, in order to enable the brush head 2 to move from the end to the beginning, in addition to its own gravity, several floating elements 8 can be provided between the driven block 302 and the frame 1 in the diagram. The floating element 8 can not only reset the driven element, but also slow down the movement speed of the driven element. Therefore, the floating element 8 should have a certain elasticity, for example, the floating element 8 can be a spring.

[0050] like Figure 1 As shown, in one embodiment, along the direction from the initial end to the final end, the frame diagram 1 is provided with a plurality of magnetic attractors 9 at intervals. The magnetic attractors 9 retain their magnetism when the power is off, and are used to attract the driven block 302. When the power is on, the magnetism is eliminated. Specifically, when encountering severe weather, such as a windy day, the driven block 302 may swing relative to the frame diagram 1, affecting the stability of the brush head 2. Therefore, in this embodiment, a plurality of magnetic attractors 9 are provided at intervals at the frame diagram 1 to attract the driven block 302 by retaining their magnetism when the power is off, so that the driven block 302 can stay at any position in the frame diagram 1, avoiding large-scale shaking.

[0051] This embodiment also provides a photovoltaic system, including the photovoltaic bracket described above. The specific structure of the photovoltaic bracket is as described in the above embodiment. Since this photovoltaic system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. Photovoltaic mounting, characterized in that The utility model relates to a brush head driving device, comprising: a frame body; a brush head movably arranged on the frame body and having a movable stroke along opposite end surfaces of the frame body, the movable stroke having an initial end and a terminal end; a first driving assembly comprising a driving block, a driven block and a brake block, the driving block and the driven block being arranged on the frame body and the brush head respectively, under the action of an external force, the driving block moves the brush head from the initial end to the terminal end through the driven block, the brake block is arranged at the terminal end and is used for releasing the cooperation between the driving block and the driven block to enable the brush head to move from the terminal end to the initial end; a second driving assembly comprising a receiving member and a spray head connected to each other, the receiving member being arranged at the terminal end and abutting against the receiving member when the driving block moves to the terminal end, so as to enable the spray head to be in an open state.

2. The photovoltaic mount of claim 1, wherein, The frame body is provided with a first sliding rail and a second sliding rail, and the driving block and the driven block are slidably arranged on the first sliding rail and the second sliding rail respectively.

3. A photovoltaic mount according to claim 1 or 2, wherein, The driving block and the driven block are oppositely arranged, and first and second connecting protrusions are arranged on opposite surfaces of the driving block and the driven block respectively, and the first connecting protrusion and the second connecting protrusion are detachably connected.

4. The photovoltaic mount of claim 3, wherein, The second connecting protrusion is telescopically arranged on the driven block, and the telescopic direction of the second connecting protrusion is perpendicular to the moving direction of the driven block.

5. The photovoltaic mount of claim 4, wherein, The second connecting protrusion and the brake block are respectively provided with a guide inclined surface and a limiting inclined surface, and when the guide inclined surface abuts against the limiting inclined surface, the second connecting protrusion is inwardly retracted, and the first connecting protrusion is separated from the second connecting protrusion.

6. The photovoltaic mount of claim 5, wherein, A spring is arranged between the second connecting protrusion and the driven block.

7. The photovoltaic mount of claim 5, wherein, The guide inclined surface and the limiting inclined surface are arranged in parallel with each other; and / or The second connecting protrusion is provided with an abutting surface for connecting the first connecting protrusion.

8. The photovoltaic mount of claim 1, wherein, A floating member is arranged between the driven block and the frame body, and the floating direction of the floating member is the same as or opposite to the movable stroke direction of the driven block.

9. The photovoltaic mount of claim 1, wherein, The frame body is provided with a plurality of magnetic attraction members at intervals along the direction from the initial end to the terminal end, the magnetic attraction members maintaining magnetism when being powered off and being used for attracting the driven block, and eliminating magnetism when being powered on.

10. A photovoltaic system characterized by, The utility model relates to a photovoltaic support. The photovoltaic support according to any one of claims 1-9.

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