Photovoltaic panel cleaning robot

Abstract

The photovoltaic panel cleaning robot comprises a square beam, connecting bases and a mounting base, the two connecting bases are connected through the square beam, the connecting bases are in a conical shell shape, each connecting base comprises a small end, the small ends are connected with the square beam, rotating shafts are arranged on the end faces of the two sides of the small ends, torsional springs are arranged on the rotating shafts, and the two ends of the torsional springs abut against the inner walls of the small ends. The connecting seats and the square beams are combined to form the mounting frame body, the rolling brushes are erected between the mounting seats, and the connecting seats are mounted on the mounting seats through the mounting seats with the torsion springs, so that when facing solar photovoltaic systems with different heights or gradients, the torsion springs are used for stress to generate deformation, different height and gradient changes are used, and the mounting frame body and the rolling brushes are mounted on the mounting seats through the mounting seats. According to the photovoltaic panel cleaning robot, the overall adaptability of the photovoltaic panel cleaning robot is improved, and when the solar photovoltaic systems with different heights need to be transferred, the photovoltaic panel cleaning robot can be quickly transferred between the adjacent solar photovoltaic systems only by erecting the connecting rods between the different solar photovoltaic systems.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning robots, and more specifically, to a photovoltaic panel cleaning robot. Background Art

[0002] Photovoltaic power generation is a new type of clean energy with broad application prospects. In order to prevent the power generation efficiency of photovoltaic solar panels from being affected by dust on the surface, the component panels need to be cleaned regularly. Therefore, the photovoltaic component cleaning device is an important guarantee for the stable operation of the photovoltaic power generation system.

[0003] The photovoltaic panel cleaning devices currently in use can be roughly divided into two categories: one is the walking mechanism hydraulic arm and the arm end cleaning device mechanism, and the other is the rotating cleaning device that moves horizontally on the photovoltaic panel surface. The problems with these cleaning devices are: (1) the structure is complex and inconvenient to move. When performing multi-row switching operations, it is necessary to lay tracks for mobile robots, which is costly; (2) the applicability is low and photovoltaic panels of different heights and different placement angles cannot be effectively cleaned; (3) the track wheel structure is single, and it cannot adaptively overcome obstacles when there are uneven up and down, left and right, front and back between photovoltaic panels; or during the obstacle crossing process, one wheel goes uphill and the other wheel is suspended, and the reliability of passage is difficult to guarantee.

[0004] In particular, for the currently common solar photovoltaic panels at different heights on the same straight line, traditional photovoltaic cleaning robots need to set up a transition structure between the two connected solar photovoltaic panel systems, or require other mechanisms to assist in the transfer, which causes the problem of high equipment cost.

[0005] Therefore, it is necessary to propose a photovoltaic panel cleaning robot to solve the problem that the above-mentioned photovoltaic robots have low adaptability, are prone to hanging in the air or are inconvenient to clean, and cannot cope with the automated transfer of solar photovoltaic panel systems at different heights. Summary of the invention

[0006] The present invention provides a photovoltaic panel cleaning robot to solve the problems that the existing photovoltaic panel cleaning robots have poor obstacle crossing ability, rely on laying tracks to achieve line-changing cleaning, and cannot adapt to the height difference between photovoltaic panels.

[0007] According to one aspect of the present invention, there is provided a photovoltaic panel cleaning robot, comprising a square beam, a connecting seat and a mounting seat, wherein the two connecting seats are connected via the square beam, the connecting seat is in the shape of a conical shell, and the connecting seat comprises a small end, the small end is connected to the square beam, and a rotating shaft is installed on both side end surfaces of the small end, a torsion spring is installed on the rotating shaft, and both ends of the torsion spring abut against the inner wall of the small end; a roller brush is mounted at the lower ends of the two mounting seats; a support column is arranged on the top of the mounting seat, the support column is mounted on the bottom of the connecting seat, and both ends of the rotating shaft are passed through the support column and locked by nuts.

[0008] Preferably, based on the above solution, the inner circular surface of the connecting small end is provided with two opposite limiting edges, and the two ends of the torsion spring abut against the end surfaces of the limiting edges.

[0009] Preferably, based on the above scheme, the connecting seat is an isosceles trapezoidal conical shell, the limiting edge is arranged on the inclined side surface of the connecting seat, the limiting edge is shell-shaped and a limiting plate is arranged on the top, and the two free ends of the torsion spring extend into the limiting edge and contact the limiting plate.

[0010] Preferably, based on the above scheme, the torsion springs are two, including a left torsion spring and a right torsion spring, and the left torsion spring and the right torsion spring are respectively mounted on the rotating shaft, and one side of the left torsion spring and the right torsion spring are respectively mortgaged on the inner edge surface of the connecting seat, and the other free ends of the left torsion spring and the right torsion spring are respectively pressed into the limiting edge.

[0011] Preferably, based on the above scheme, it is characterized in that a slot is provided on the top of the support column, and the slot is engaged with the limiting edge.

[0012] Preferably, based on the above solution, the inner edge surface of the support column is provided with a clamping edge, the clamping edge is L-shaped, and the end of the torsion spring is clamped into the clamping edge.

[0013] Preferably, based on the above scheme, a conical roller is installed on the opposite side of the mounting seat, and a round roller is installed on the bottom of the mounting seat, the central axis of the conical roller is arranged parallel to the central axis of the roller brush, and the conical roller is arranged on both sides of the roller brush; a mounting frame is installed on the bottom side end of the mounting seat, and a windproof roller is installed on the mounting frame, and the windproof roller is arranged in multiple intervals.

[0014] Preferably, based on the above scheme, the photovoltaic panel cleaning robot is used to clean the photovoltaic panel, and the photovoltaic panel is installed on the photovoltaic support system. Position sensors are provided at both ends of the photovoltaic support system, and the connected photovoltaic support systems are connected through an adapter frame. When the photovoltaic panel cleaning robot is cleaning, the roller brush is pressed against the surface of the photovoltaic panel; when the photovoltaic panel cleaning robot transfers from an adjacent photovoltaic support system to another photovoltaic support system, the torsion spring is compressed and deformed to adjust the relative position of the mounting base.

[0015] Preferably, based on the above scheme, a mounting frame is installed at the bottom of the mounting seat, and a windproof roller is installed on the mounting frame, and the windproof roller is arranged in a plurality of intervals.

[0016] Preferably, based on the above scheme, there are three windproof rollers, and the three windproof rollers are arranged at intervals on the same horizontal plane.

[0017] Preferably, based on the above scheme, the photovoltaic panel cleaning robot is used to clean the photovoltaic panel, and the photovoltaic panel is installed on the photovoltaic support system. Position sensors are provided at both ends of the photovoltaic support system, and the connected photovoltaic support systems are connected through an adapter frame. When the photovoltaic panel cleaning robot is cleaning, the roller brush is pressed against the surface of the photovoltaic panel; when the photovoltaic panel cleaning robot transfers from an adjacent photovoltaic support system to another photovoltaic support system, the torsion spring is compressed and deformed to adjust the relative position of the mounting base.

[0018] A photovoltaic panel cleaning robot of the present invention adopts a connecting seat and a square beam to form a mounting frame, and a roller brush is set between the mounting seats. The roller brush is installed on the mounting seat through the connecting seat through a mounting device with a torsion spring. When facing solar photovoltaic systems of different heights or slopes, the torsion spring is used to bear force to produce deformation, so as to use different heights and slope changes to improve its overall adaptability. When facing solar photovoltaic systems of different heights that need to be transferred, it is only necessary to set up connecting rods between different solar photovoltaic systems to realize the rapid transfer of the photovoltaic panel cleaning robot between adjacent solar photovoltaic systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the photovoltaic panel cleaning robot of the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified view of part A;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram without the square beam;

[0023] Figure 4 For the present invention Figure 2 The first state diagram;

[0024] Figure 5 For the present invention Figure 2 The second state diagram;

[0025] Figure 6 For the present invention Figure 2 The third state diagram of

[0026] Figure 7 For the present invention Figure 2 The fourth state diagram of FIG;

[0027] Figure 8 It is a three-dimensional structural diagram of the mounting seat of the present invention;

[0028] Fig. 9 It is a three-dimensional structural diagram of the connecting seat of the present invention;

[0029] Description of Figure Numbers:

[0030] 1. Square beam;

[0031] 2. Connecting seat; 21. Small end; 22. Rotating shaft; 23. Left torsion spring; 24. Right torsion spring; 25. Limiting edge; 26. Oblique side surface; 27. Limiting plate;

[0032] 3. Mounting seat; 31. Support column; 32. Card slot; 33. Card edge;

[0033] 4. Roller brush; 41. Conical roller; 42. Round roller; 43. Mounting bracket; 44. Windproof roller. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0036] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0037] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, the indications of these directions also change accordingly.

[0039] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0041] See also Figure 1 , and combined with Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a photovoltaic panel cleaning robot of the present invention includes a square beam 1, a connecting seat 2 and a mounting seat 3. The two mounting seats 3 are arranged at intervals and connected through the square beam 1 to form a mounting frame. The connecting seat 2 is in a conical shell shape, and the connecting seat 2 includes a large end and a small end 21. The small end 21 is connected to the square beam 1, and the large end is rotatably connected to the connecting seat 2.

[0042] Specifically, the isosceles trapezoidal vertebral body of the present invention has two waist plates and side plates connecting the two waist plates. The side plates and the waist plates are arranged to form a conical shell shape. The two side plates of the small end 21 of the present invention are equipped with a rotating shaft 22, and a torsion spring is installed on the rotating shaft 22. The free end of the torsion spring abuts against the two waist plates of the small end 21.

[0043] The mounting seat 3 at the bottom of the connecting seat 2 is suitable for connecting and installing the roller brush 4. A support column 31 is provided at the top of the mounting seat 3. The support column 31 and the mounting seat 3 can be integrally formed, or connected by welding or bolting. The top of the support column 31 is mounted on the bottom of the connecting seat 2, and the two ends of the rotating shaft 22 pass through the support column 31 and are locked by nuts.

[0044] Among them, a conical roller 41 is installed on the opposite side of the mounting seat 3, and a round roller 42 is installed at the bottom of the mounting seat 3. The central axis of the conical roller 41 is arranged parallel to the central axis of the roller brush 4, and the conical roller 41 is arranged on both sides of the roller brush 4; a mounting frame 43 is installed at the bottom side end of the mounting seat 3, and a windproof roller 44 is installed on the mounting frame 43, and the windproof roller 44 is arranged in multiple intervals.

[0045] Specifically, the mounting seat 3 of the present invention is in the shape of a rectangular shell, and a motor is installed inside it. The motor drives the bevel gear, the drum and the round roller 42 to rotate through a chain or a transmission belt. Since the motor drives the bevel roller 41, the drum and the round roller 42 to rotate by driving the sprocket or gear, it is a conventional setting and will not be repeated here.

[0046] During operation, when the roller brush 4 encounters an uneven surface of the photovoltaic panel, the ground will exert a reverse force on the roller brush 4, which will be transmitted to the mounting seat 3 through the roller brush 4, so as to drive the support column 31 on the mounting seat 3 to move relative to the connecting seat 2, and buffer the force by squeezing the torsion spring. When the external force is removed, the elastic force of the torsion spring itself can be used to automatically return to the correct position, so as to achieve automatic and precise regulation.

[0047] It should be noted that the photovoltaic support system on site is composed of multiple modules, and the photovoltaic support height of each module is different. In order to achieve automated large-area cleaning, the present invention adopts the design of photovoltaic modules on the same straight line as photovoltaic panels of the same width. However, the heights of the modules on the same straight line are different. To achieve large-area cleaning of photovoltaic panels on the same straight line, the photovoltaic modules on the same straight line need to be connected through an adapter frame.

[0048] After such design, when the photovoltaic panel cleaning robot of the present invention needs to be used, the photovoltaic panel cleaning robot of the present invention is set on one of the photovoltaic bracket modules. After cleaning one of the photovoltaic modules, the photovoltaic panel cleaning robot of the present invention uses the internal motor to drive the round roller 42 and the conical roller 41 to rotate, and combines the round roller 42 on the mounting seats 3 at both ends to limit the outer edge surface of the adapter frame to achieve its Y-axis positioning, and then, the inclined surface of the conical roller 41 contacts the end surface of the adapter frame, and as the height of the end surface of the adapter frame changes, it passes through the end surface of the conical roller 41 to adapt to the height change, so as to achieve its smooth transfer. Please refer to the working schematic diagram Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown.

[0049] Furthermore, the number of the windproof rollers 44 of the present invention is three, and the three windproof rollers 44 are arranged at intervals on the same horizontal plane.

[0050] The windproof roller 44 and the upper conical roller 41 form upper and lower limit positions so as to be engaged with the adapter frame or the installation frame of the photovoltaic panel to prevent the photovoltaic panel from falling off due to external force.

[0051] In the present invention, two opposite limiting edges 25 are provided on the inner circular surface of the connecting small end 21 , and the two ends of the torsion spring abut against the end surfaces of the limiting edges 25 .

[0052] like Fig. 9 As shown, the connecting seat 2 of the present invention is an isosceles trapezoidal conical shell, and the limiting edge 25 is arranged on the inclined side surface 26 of the connecting seat 2 (i.e., the waist plate mentioned above). The limiting edge 25 is shell-shaped and a limiting plate 27 is arranged on the top thereof. The two free ends of the torsion spring extend into the limiting edge 25 and contact the limiting plate 27.

[0053] like Figure 3 As shown, the torsion spring of the present invention comprises two left torsion springs 23 and right torsion springs 24. The left torsion spring 23 and the right torsion spring 24 are respectively mounted on the rotating shaft 22, and one side of the left torsion spring 23 and the right torsion spring 24 are respectively mortgaged on the inner edge surface of the connecting seat 2, and the other free ends of the left torsion spring 23 and the right torsion spring 24 are respectively pressed into the limiting edge 25, and the limiting edge 25 provides the left and right torsion springs 24 with installation reverse force. When the support column 31 at the bottom has no power transmission, the left and right torsion springs 24 can be used to return to the normal position by the force of the left and right torsion springs 24.

[0054] Furthermore, the top of the support column 31 of the present invention is provided with a slot 32, the slot 32 is engaged with the limiting edge 25, the inner edge surface of the support column 31 is provided with a card edge 33, the card edge 33 is L-shaped, and the end of the torsion spring is inserted into the card edge 33. The specific structure is as follows: Figure 8 shown.

[0055] The photovoltaic panel cleaning robot of the present invention is used to clean photovoltaic panels. The photovoltaic panels are installed on a photovoltaic support system. Position sensors are arranged at both ends of the photovoltaic support system. The photovoltaic support system is composed of multiple photovoltaic modules. The photovoltaic modules in the same line are in the same straight line, but the heights of adjacent modules are different in order to adapt to different terrains. In order to enable the photovoltaic panel cleaning robot to cross between adjacent photovoltaic modules of different heights, the present invention connects the connected photovoltaic modules through an adapter frame. When the photovoltaic panel cleaning robot is cleaning, the roller brush 4 is pressed against the surface of the photovoltaic panel, and the motor drives the photovoltaic panel cleaning robot to move on the photovoltaic module to achieve rapid cleaning.

[0056] When the photovoltaic panel cleaning robot is transferred from an adjacent photovoltaic support system to another photovoltaic support system, the torsion spring is compressed and deformed to adjust the relative position of the mounting seat 3.

[0057] A photovoltaic panel cleaning robot of the present invention adopts a connecting seat 2 and a square beam 1 to form an installation frame, and a roller brush 4 is set between the installation seats 3. The roller brush 4 is set on the installation seat 3 through the connecting seat 2 through a torsion spring. When facing solar photovoltaic systems of different heights or slopes, the torsion spring is used to bear force to produce deformation, so as to use different heights and slope changes to improve its overall adaptability. When facing solar photovoltaic systems of different heights that need to be transferred, it is only necessary to set up connecting rods between different solar photovoltaic systems to realize the rapid transfer of the photovoltaic panel cleaning robot between adjacent solar photovoltaic systems.

[0058] Finally, the method of the present application is only a preferred implementation scheme and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic panel cleaning robot, characterized in that: It includes a square beam, a connecting seat and a mounting seat, the two connecting seats are connected by the square beam, the connecting seat is in a conical shell shape, and the connecting seat includes a small end, the small end is connected to the square beam, and a rotating shaft is installed on the end faces of both sides of the small end, a torsion spring is installed on the rotating shaft, and the two ends of the torsion spring are in contact with the inner wall of the small end; a roller brush is mounted on the lower ends of the two mounting seats; a support column is arranged on the top of the mounting seat, the support column is mounted on the bottom of the connecting seat, and the two ends of the rotating shaft are passed through the support column and locked by nuts.

2. A photovoltaic panel cleaning robot as claimed in claim 1, characterized in that: The inner circular surface of the connecting small end is provided with two opposite limiting edges, and the two ends of the torsion spring abut against the end surfaces of the limiting edges.

3. A photovoltaic panel cleaning robot as claimed in claim 2, characterized in that: The connecting seat is an isosceles trapezoidal conical shell, the limiting edge is arranged on the inclined side surface of the connecting seat, the limiting edge is shell-shaped and a limiting plate is arranged on the top, and the two free ends of the torsion spring extend into the limiting edge and contact the limiting plate.

4. A photovoltaic panel cleaning robot as claimed in claim 3, characterized in that: The torsion springs consist of two, including a left torsion spring and a right torsion spring. The left torsion spring and the right torsion spring are respectively mounted on the rotating shaft, and one side of the left torsion spring and the right torsion spring are respectively mortgaged on the inner edge surface of the connecting seat, and the other free ends of the left torsion spring and the right torsion spring are respectively pressed into the limiting edge.

5. A photovoltaic panel cleaning robot as claimed in claim 2, characterized in that: A clamping slot is arranged on the top of the support column, and the clamping slot is engaged with the limiting edge.

6. A photovoltaic panel cleaning robot as claimed in claim 2, characterized in that: The inner edge surface of the support column is provided with a clamping edge, the clamping edge is L-shaped, and the end of the torsion spring is clamped into the clamping edge.

7. A photovoltaic panel cleaning robot as claimed in claim 1, characterized in that: A conical roller is installed on the opposite side of the mounting seat, and a round roller is installed on the bottom of the mounting seat. The central axis of the conical roller is arranged parallel to the central axis of the roller brush, and the conical rollers are arranged on both sides of the roller brush. A mounting frame is installed on the bottom side end of the mounting seat, and a windproof roller is installed on the mounting frame. The windproof rollers are arranged at multiple intervals.

8. A photovoltaic panel cleaning robot as claimed in claim 7, characterized in that: There are three windproof rollers, and the three windproof rollers are arranged at intervals on the same horizontal plane.

9. The photovoltaic panel cleaning robot according to claim 1, characterized in that: The photovoltaic panel cleaning robot is used to clean the photovoltaic panel, which is installed on the photovoltaic support system. Position sensors are provided at both ends of the photovoltaic support system, and the connected photovoltaic support systems are connected through an adapter frame. When the photovoltaic panel cleaning robot is cleaning, the roller brush is pressed against the surface of the photovoltaic panel; when the photovoltaic panel cleaning robot transfers from an adjacent photovoltaic support system to another photovoltaic support system, the torsion spring is compressed and deformed to adjust the relative position of the mounting seat.

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