Photovoltaic solar panel cleaning equipment

Abstract

The invention relates to the technical field of solar panel cleaning, and discloses photovoltaic solar panel cleaning equipment which comprises a sliding limiting mechanism erected above a photovoltaic solar panel in parallel, a cleaning body arranged in the sliding limiting mechanism and a single-side walking supporting mechanism arranged at the top end of the sliding limiting mechanism. The single-side walking supporting mechanism comprises at least two vacuum suction cups used for being directly adsorbed to the photovoltaic solar panel, a linear telescopic rod connected between the two vacuum suction cups, and a walking device fixedly connected to the side, opposite to the linear telescopic rod, of one vacuum suction cup. The walking device is provided with a rubber walking roller in direct contact with photovoltaic solar energy and a first driving motor in transmission connection with the rubber walking roller. The single side of the sweeping equipment is fixed and walks, so that the sweeping equipment does not need to stretch across the whole photovoltaic solar panel, the equipment is less restricted by sites, and the sweeping equipment can be fully suitable for different use scenes.

Description

Technical Field

[0001] The invention relates to the technical field of solar panel cleaning, and in particular to a photovoltaic solar panel cleaning device. Background Art

[0002] Photovoltaic solar panels are the core part of the solar power generation system. Photovoltaic solar panels are generally installed outdoors when in use. Due to the complex outdoor environment, some impurities (such as dust) will adhere to the surface of photovoltaic solar panels after a period of use. Dust adheres to the surface of photovoltaic solar panels, which will block, absorb and reflect light, affecting the power generation efficiency and needs to be cleaned.

[0003] In the prior art, cleaning is usually done manually using equipment such as floor scrubbers, but the efficiency is low.

[0004] refer to Figure 1 Therefore, the prior art also uses automatic cleaning equipment for cleaning. The principle of the prior equipment is roughly as follows: the prior automatic cleaning equipment 2 is generally placed across the photovoltaic solar panel 1 along the width direction, and then the rollers arranged on both sides of the automatic cleaning equipment 2 are moved along the length direction on the photovoltaic solar panel 1, and the photovoltaic solar panel 1 is cleaned during the movement. The specific working process can refer to the invention patent with authorization announcement number CN115805204B, which mainly supports and moves the photovoltaic solar panel 1 by positioning and clamping the photovoltaic solar panel 1 with rollers.

[0005] However, this method is more suitable for photovoltaic solar panels arranged in rows, but it is difficult for automatic cleaning equipment to solve the problem of photovoltaic solar panels arranged in large areas, such as photovoltaic solar panels arranged on roofs. Summary of the invention

[0006] The present application aims to solve the technical problem that the automatic cleaning device cannot adapt to various arrangements of photovoltaic solar panels. To this end, the present invention provides a photovoltaic solar panel cleaning device.

[0007] The technical solution of the present invention is as follows: A photovoltaic solar panel cleaning device comprises a sliding limit mechanism erected in parallel above the photovoltaic solar panel, a cleaning body arranged in the sliding limit mechanism, and a unilateral walking support mechanism arranged at the top of the sliding limit mechanism; the unilateral walking support mechanism is used to be detachably fixed to the photovoltaic solar panel to support the sliding limit mechanism, and the sliding limit mechanism is used to drive the cleaning body to achieve reciprocating cleaning of a designated area along the moving line of the sliding limit mechanism.

[0008] The unilateral walking support mechanism includes at least two vacuum suction cups for directly adsorbing on the photovoltaic solar panel, a linear telescopic rod connected between the two vacuum suction cups, and a walker fixedly connected to the opposite side of one of the vacuum suction cups and the linear telescopic rod, the walker having a rubber walking roller in direct contact with the photovoltaic solar energy and a driving motor 1 that is transmission-connected to the rubber walking roller; The unilateral walking support mechanism also includes an air pressure control mechanism, which is connected to the multiple vacuum suction cups in a one-to-one matching manner through multiple air pipes, and the air pressure control mechanism is used to control the switching between the negative pressure state and the normal pressure state of the multiple vacuum suction cups respectively.

[0009] Preferably, the sliding limit mechanism comprises a slide groove with one end fixedly connected to the housing of the walking device, a slider slidably arranged in the slide groove, a rack fixedly arranged on one side of the slide groove, a driving gear rotatably arranged on one side of the slider and meshing with the rack, and a driving motor 2 fixedly installed on the slider and having an output shaft drivingly connected to the driving gear; The cleaning body is mounted on the bottom end of the sliding block.

[0010] Preferably, a pressurized suction cup is provided at the other end of the slide groove.

[0011] Preferably, the cleaning body comprises a mounting box body having an inner cavity, a cleaning roller rotatably mounted at the bottom of the mounting box body, a cleaning water pipe communicating with the inner cavity, and a driving motor for driving the cleaning roller; The installation box body is fixedly connected to the bottom end of the sliding block, and the cleaning roller part penetrates into the inner cavity of the installation box body.

[0012] Preferably, the surface of the cleaning roller is covered with a flexible cleaning layer, and a spiral groove is formed on the flexible cleaning layer; A slot for accommodating the top of the cleaning roller is formed at the bottom of the installation box body, and an edge of the slot abuts against the flexible cleaning layer.

[0013] Preferably, the spiral groove is a mirror-image spiral double groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention first connects multiple vacuum suction cups through a linear telescopic rod, then controls the two to perform alternating adsorption, and then drives one of the vacuum suction cups to move horizontally through a walker, and controls the other vacuum suction cup to follow the movement through the linear telescopic rod, thereby realizing unilateral fixation and movement of the cleaning device, so that the device does not need to span the entire photovoltaic solar panel, and can move between adjacent rows of the lifting device, and then automatically clean in rows. The device is less restricted by the site and can be fully applied to different usage scenarios. Moreover, the device is fixed on the surface of the photovoltaic solar panel, while the edge fixation in the prior art will be limited by the edge specifications, while the surface fixation does not have this problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a working schematic diagram of existing automatic cleaning equipment.

[0017] Figure 2 This is the working principle diagram of the photovoltaic solar panel cleaning equipment.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the cleaning device from a first angle.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the cleaning device from a second angle.

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the cleaning device from a third angle.

[0021] Reference numerals: 1. Photovoltaic solar panel; 2. Existing automatic cleaning equipment; 3. Sliding limit mechanism; 4. Cleaning body; 5. Single-sided walking support mechanism; 6. Vacuum suction cup; 7. Linear telescopic rod; 8. Walker; 9. Rubber walking roller; 10. Driving motor 1; 11. Air pipe; 12. Slide groove; 13. Sliding block; 14. Rack; 15. Driving gear; 16. Driving motor 2; 17. Boosting suction cup; 18. Mounting box; 19. Cleaning roller; 20. Driving motor 3; 21. Spiral groove; 22. Cleaning water pipe. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention aims to solve the problem that a fixed sweeping device cannot sweep a sheet arrangement with insufficient sweeping width.

[0028] The present invention provides a photovoltaic solar panel cleaning device, comprising a sliding limit mechanism 3 erected in parallel above a photovoltaic solar panel 1, a cleaning body 4 arranged in the sliding limit mechanism 3, and a unilateral walking support mechanism 5 arranged at the top of the sliding limit mechanism 3; the unilateral walking support mechanism 5 is used to be detachably fixed to the photovoltaic solar panel 1 to support the sliding limit mechanism 3, and the sliding limit mechanism 3 is used to drive the cleaning body 4 to achieve reciprocating cleaning of a designated area along the moving line of the sliding limit mechanism 3. The unilateral walking support mechanism 5 includes at least two vacuum suction cups 6 for directly adsorbing on the photovoltaic solar panel 1, a linear telescopic rod 7 connected between the two vacuum suction cups 6, and a walker 8 fixedly connected to the opposite side of one of the vacuum suction cups 6 and the linear telescopic rod 7, the walker 8 has a rubber walking roller 9 in direct contact with the photovoltaic solar energy and a driving motor 10 connected to the rubber walking roller 9; the unilateral walking support mechanism 5 also includes an air pressure control mechanism, which is connected to the multiple vacuum suction cups 6 in a one-to-one matching manner through multiple air pipes 11, and the air pressure control mechanism is used to respectively control the switching between the negative pressure state and the normal pressure state of the multiple vacuum suction cups 6.

[0029] refer to Figure 2 ( Figure 2 The hollow arrows in the middle represent the state switching of the cleaning device, and the solid arrows represent the movement direction of the corresponding objects). For ease of understanding, the working principle of the present invention is explained by taking the scenario where two photovoltaic solar panels 1 are connected into a sheet and the number of vacuum suction cups 6 is set to 2 as an example: First, the photovoltaic solar panel cleaning equipment is first placed on the photovoltaic solar panel through the lifting equipment. Figure 2 At the position shown in the upper left of the figure, at this time, the two vacuum suction cups 6 are controlled to be in the adsorption state, thereby completing the fixation of the two vacuum suction cups 6 and the photovoltaic solar panel 1 (in Figure 2 In order to facilitate the description, the vacuum suction cup 6 is divided into two parts, a and b. At this time, the cleaning body 4 is located at the bottom end of the sliding limit mechanism 3, and the cleaning body 4 is driven to slide upward by the sliding limit mechanism 3 until it slides to the top end of the sliding limit mechanism 3. At this time, it just corresponds to Figure 2 The cleaning body 4 is in the upper right state. During the upward sliding process of the cleaning body 4, the row facing the cleaning body 4 can be cleaned. Next, the adsorption state of the vacuum suction cup a 6 is maintained, the adsorption state of the vacuum suction cup b 6 is released, and then the walker 8 is driven to move to the right. Since the walker 8 is limited by the linear telescopic rod 7 and can only move horizontally to the right, the vacuum suction cup b 6 has no adsorption force and moves synchronously to the right with the walker 8, while the vacuum suction cup a 6 still maintains the adsorption state and cannot move. Then the linear telescopic rod 7 is stretched. At this time, Figure 2Then, the suction force of vacuum suction cup b 6 is turned on to fix vacuum suction cup b 6 to photovoltaic solar panel 1, and then the suction force of vacuum suction cup a 6 is turned off. At this time, the spring inside the linear telescopic rod 7 is stretched in the previous step. Therefore, when the suction force of vacuum suction cup a 6 is lost, the linear telescopic rod 7 will contract and drive the left end of vacuum suction cup a 6 to move to the right until a Figure 2 Lower middle left state.

[0030] During the above-mentioned movement process, since the sliding limit mechanism 3 is connected to the walker 8, it moves horizontally the same distance as the walker 8, thereby realizing the change of the lateral cleaning range. When the row is cleaned, the device is connected to the lifting device, and then the adsorption of the a and b vacuum suction cups 6 is released, and it moves to the adjacent row. The photovoltaic solar panel cleaning device is fixed and moved on one side, so that the device does not need to span the entire photovoltaic solar panel like the existing automatic cleaning device 2, and can move between adjacent rows with the lifting device, and then automatically clean in rows. The device is less restricted by the site and can be fully used in different usage scenarios.

[0031] refer to Figures 3 to 5 , the present invention provides a preferred embodiment to explain the working principle of the present invention as follows: The unilateral walking support mechanism 5 includes at least two vacuum suction cups 6 for directly adsorbing on the photovoltaic solar panel 1, a linear telescopic rod 7 connected between two adjacent vacuum suction cups 6, and a walker 8 fixedly connected to the opposite side of one of the vacuum suction cups 6 and the linear telescopic rod 7, the walker 8 has a rubber walking roller 9 in direct contact with the photovoltaic solar energy and a driving motor 10 connected to the rubber walking roller 9; the unilateral walking support mechanism 5 also includes an air pressure control mechanism, which is connected to the multiple vacuum suction cups 6 in a one-to-one matching manner through multiple air pipes 11, and the air pressure control mechanism is used to control the switching between the negative pressure state and the normal pressure state of the multiple vacuum suction cups 6 respectively. The sliding limit mechanism 3 includes a slide groove 12 fixedly connected to the outer shell of the walking device 8 at one end, a slider 13 slidably arranged in the slide groove 12, a rack 14 fixedly arranged on one side of the slide groove 12, a driving gear 15 rotatably arranged on one side of the slider 13 and meshing with the rack 14, and a driving motor 2 16 fixedly installed on the slider 13 and whose output shaft is transmission-connected with the driving gear 15; the cleaning body 4 is installed at the bottom end of the slider 13. The cleaning body 4 includes a mounting box body 18 with an inner cavity, a cleaning roller 19 rotatably mounted at the bottom of the mounting box body 18, a cleaning water pipe 22 connected to the inner cavity, and a driving motor 3 20 for driving the cleaning roller 19; the mounting box body 18 is fixedly connected to the bottom end of the slider 13, and a part of the cleaning roller 19 penetrates into the inner cavity of the mounting box body 18.

[0032] The working principle of this embodiment is: First, the chute 12 is manually connected to a device with a lifting capacity in the prior art, so that the cleaning device is moved to the specified position of the photovoltaic solar panel 1, and then a negative pressure environment is formed through an air pressure control mechanism (generally a rotary vane vacuum pump in the prior art, and multiple ones can be set for one-to-one control) and then the negative pressure state is transmitted to the two vacuum suction cups 6 through the air pipe 11, and then the two vacuum suction cups 6 are adsorbed on the specified positions of the photovoltaic solar panel 1, and then the driving motor 16 is controlled to rotate, thereby driving the driving gear 15 to rotate, and the driving gear 15 is meshed with the rack 14, so the interaction between the driving gear 15 and the rack 14 will drive the slider 13 to slide back and forth in the chute 12, and the slider 13 will correspondingly The sliding nesting with the slide groove 12 will maintain the meshing state of the driving gear 15 and the rack 14; at this time, the sliding of the slider 13 will drive the installation box body 18 fixedly connected thereto to move; while the installation box body 18 moves, the external water pumping equipment first pumps the cleaning liquid (generally referring to surfactant) into the inner cavity of the installation box body 18 through the cleaning water pipe 22, and at the same time, the driving motor three 20 drives the cleaning roller 19 to rotate at the same time, and the cleaning roller 19 can continuously contact the cleaning liquid in the inner cavity through rotation, so that the surface of the cleaning roller 19 is continuously moistened and cleaned; then, the corresponding area of ​​the cleaning roller 19 is cleaned through the self-rotation of the cleaning roller 19, and then the cleaning of a range of the cleaning roller 19 is driven by the sliding of the slider 13.

[0033] When the row is cleaned, the negative pressure state of the right vacuum suction cup 6 is released through the air pressure control mechanism through the air pipe 11, and then the output is controlled by the drive motor 10. The output of the drive motor 10 can drive the rubber walking roller 9 to rotate through a transmission structure such as a gear set or a pulley set, and then perform a horizontal linear motion under the limiting action of the linear telescopic rod 7, thereby realizing the aforementioned row changing process.

[0034] The linear telescopic rod 7 is composed of a plurality of sleeves which are sleeved together, and two sections of the sleeved assembly are connected to the existing structure of springs, so that the structure can automatically retract after being stretched.

[0035] Furthermore, a flexible cleaning layer is sleeved on the surface of the cleaning roller 19, and a spiral groove 21 is formed on the flexible cleaning layer; a groove for accommodating the top of the cleaning roller 19 is formed at the bottom of the mounting box 18, and the edge of the groove abuts against the flexible cleaning layer. The spiral groove 21 is a mirror-image spiral double groove.

[0036] The flexible cleaning layer can be a flexible layer formed by brushes or a sponge layer, so as to enhance the contact effect with the surface of the photovoltaic solar panel 1 through extrusion deformation and improve the cleaning ability. However, if there are small stones or other debris in the flexible cleaning layer during the extrusion process, the flexible cleaning layer may be carried by the flexible cleaning layer and squeezed with the surface of the photovoltaic solar panel 1, causing damage to the photovoltaic solar panel 1. Therefore, in some other embodiments of the present invention, a spiral groove 21 can be formed on the flexible cleaning layer. The spiral groove 21 can guide some stones and other debris into the groove during the rolling process, and then be thrown out from the rear side under the action of centrifugal force. Then, by setting a double mirror spiral groove 21, the guiding range of the spiral groove 21 for the stone can be increased.

[0037] Of course, when the flexible cleaning layer cleans the surface of the photovoltaic solar panel 1, or when the driving motor 10 drives the rubber walking roller 9 to walk, the photovoltaic solar panel 1 is generally set with a small slope, and the friction required by the above two can be applied by the device's own gravity. When the slope is large, the friction generated by its own gravity is small. Therefore, in some embodiments of the present invention, a booster suction cup 17 is provided at the other end of the slide 12. The booster suction cup 17 cooperates with the top vacuum suction cup 6 to increase the friction to overcome the slope change.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A photovoltaic solar panel cleaning device, comprising a sliding limit mechanism (3) arranged parallel to the photovoltaic solar panel (1), a cleaning body (4) arranged in the sliding limit mechanism (3), and a single-side walking support mechanism (5) arranged at the top of the sliding limit mechanism (3); characterized in that: The unilateral walking support mechanism (5) is used to achieve detachable fixation with the photovoltaic solar panel (1) to support the sliding limit mechanism (3), and the sliding limit mechanism (3) is used to drive the cleaning body (4) along the moving line of the sliding limit mechanism (3) to achieve reciprocating cleaning of a designated area; The unilateral walking support mechanism (5) comprises at least two vacuum suction cups (6) for directly adsorbing on the photovoltaic solar panel (1), a linear telescopic rod (7) connected between the two vacuum suction cups (6), and a walker (8) fixedly connected to the opposite side of one of the vacuum suction cups (6) and the linear telescopic rod (7), wherein the walker (8) has a rubber walking roller (9) in direct contact with the photovoltaic solar energy and a driving motor (10) drivingly connected to the rubber walking roller (9); The unilateral walking support mechanism (5) further comprises an air pressure control mechanism, the air pressure control mechanism being connected to the plurality of vacuum suction cups (6) in a one-to-one matching manner via a plurality of air pipes (11), the air pressure control mechanism being used to respectively control the switching between the negative pressure state and the normal pressure state of the plurality of vacuum suction cups (6).

2. A photovoltaic solar panel cleaning device according to claim 1, characterized in that: The sliding limit mechanism (3) comprises a slide groove (12) with one end fixedly connected to the housing of the walking device (8), a slider (13) slidably arranged in the slide groove (12), a rack (14) fixedly arranged on one side of the slide groove (12), a driving gear (15) rotatably arranged on one side of the slider (13) and meshing with the rack (14), and a second driving motor (16) fixedly mounted on the slider (13) and having an output shaft drivingly connected to the driving gear (15); The cleaning body (4) is mounted on the bottom end of the sliding block (13).

3. A photovoltaic solar panel cleaning device according to claim 2, characterized in that: A pressurizing suction cup (17) is provided at the other end of the slide groove (12).

4. A photovoltaic solar panel cleaning device according to claim 2, characterized in that: The cleaning body (4) comprises a mounting box (18) having an inner cavity, a cleaning roller (19) rotatably mounted on the bottom of the mounting box (18), a cleaning water pipe (22) connected to the inner cavity, and a driving motor (20) for driving the cleaning roller (19); The installation box body (18) is fixedly connected to the bottom end of the sliding block (13), and the cleaning roller (19) partially penetrates into the inner cavity of the installation box body (18).

5. A photovoltaic solar panel cleaning device according to claim 4, characterized in that: A flexible cleaning layer is sleeved on the surface of the cleaning roller (19), and a spiral groove (21) is formed on the flexible cleaning layer; The bottom of the installation box body (18) is provided with a slot for accommodating the top end of the cleaning roller (19), and the edge of the slot abuts against the flexible cleaning layer.

6. A photovoltaic solar panel cleaning device according to claim 5, characterized in that: The spiral groove (21) is a double spiral groove arranged in a mirror image.

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