Disc type cleaning brush for surface of photovoltaic panel
By using the first bristles and second bristles with different stiffness in the photovoltaic panel cleaning equipment, the poor cleaning effect and wear problems caused by uniform bristles in the prior art are solved, and more efficient cleaning effect and safety are achieved.
Patent Information
- Application Number
- CN202422072196.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In existing photovoltaic panel cleaning equipment, the uniform stiffness of the bristles leads to poor cleaning effect, and the bristles are prone to wear the photovoltaic panels or have low cleaning efficiency, making it difficult to effectively remove attachments and floating ash at the same time.
A photovoltaic panel surface disc cleaning brush is designed, using first bristles and second bristles with different stiffness. The rotation axis distance between the first bristles and the substrate is greater than that of the second bristles. The two are arranged together to increase the contact area and limit the elastic deformation of the second bristles. Combined with the stiffness characteristics of different bristles, the cleaning effect is improved.
The contact area between the bristles and the photovoltaic panel is increased, the cleaning effect and efficiency are improved, the bristle wear is reduced, and the safety of robot operation is enhanced.
Smart Images
Figure CN223128703U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of photovoltaic panel cleaning equipment, in particular to a disc-type cleaning brush for the surface of a photovoltaic panel. Background Art
[0002] Since photovoltaic panels are placed in the open air, dust and other attachments will adhere to the surface of the panels after long-term use. These attachments will block the light, thereby reducing the power generation efficiency of the photovoltaic panels.
[0003] At present, the main cleaning methods for photovoltaic panels are to use a handheld cleaning rod or a robot to drive a brush to move on the surface of the photovoltaic panel for cleaning. Both of the above cleaning methods can use a disc cleaning brush. The bristles of the disc cleaning brush are in contact with the photovoltaic panel. When the disc cleaning brush rotates, the rotating axis is roughly perpendicular to the photovoltaic panel, and the attachments on the surface of the photovoltaic panel are removed during the rotation.
[0004] The existing disc cleaning brushes use the same bristles, so the bristles have the same stiffness. When no external force is applied, only the lower end of the bristles contacts the photovoltaic panel. The contact area between the lower end of the bristles and the photovoltaic panel is small, and the cleaning effect is poor. Therefore, in actual use, the disc cleaning brush will be pressed down to make the bristles produce elastic deformation, so that the side of the bristles contacts the photovoltaic panel, thereby increasing the contact area with the photovoltaic panel and improving the cleaning effect.
[0005] When the bristles used have a large stiffness (i.e., the bristles are harder), a large downward pressure is required on the disc cleaning brush to make the bristles produce elastic deformation, but the downward pressure of manual or robot is limited. Under limited downward pressure, the elastic deformation produced by the bristles is small, and the contact area between the bristles and the photovoltaic panel is small, resulting in poor cleaning effect.
[0006] When the bristles used have a small stiffness (i.e., the bristles are soft), the outer bristles will be elastically deformed by the centrifugal force during rotation, and the outer bristles will float up and break away from the contact with the photovoltaic panel (e.g., Figure 2 As shown in the figure, the cleaning area is reduced, thereby reducing the cleaning efficiency.
[0007] The prior art practice is to select bristles with moderate stiffness, but bristles with moderate stiffness have both the problems of hard bristles and soft bristles, but the degree of each is less severe.
[0008] Moreover, harder bristles are more efficient in removing objects with stronger adhesion, but they are easy to wear the photovoltaic panel. Softer bristles are better at removing floating dust with weaker adhesion and are not easy to wear the photovoltaic panel, but they are less efficient in removing objects with stronger adhesion.
[0009] However, the effect of the brush bristles with moderate stiffness in removing the attachments with strong adhesion is weaker than that of the harder brush bristles, and the efficiency of removing floating dust is weaker than that of the softer brush bristles. Moreover, compared with the softer brush bristles, it is easier to wear the surface of the photovoltaic panel. Summary of the Invention
[0010] The present utility model aims to solve the above problems and provides a disc-shaped cleaning brush for the surface of a photovoltaic panel, which solves the above problems.
[0011] A disc-shaped cleaning brush for the surface of a photovoltaic panel includes: a first brush bristle, a second brush bristle and a substrate. The upper ends of the first brush bristle and the second brush bristle are respectively fixedly connected to the substrate. The stiffness of the first brush bristle is greater than that of the second brush bristle, and the distance from the first brush bristle to the rotation axis of the substrate is greater than the distance from the second brush bristle to the rotation axis of the substrate.
[0012] Further, the first brush bristles are arranged in a circular pattern around the rotation axis of the substrate, and the second brush bristles are arranged in a circular pattern around the rotation axis of the substrate.
[0013] Further, the first brush bristles are divided into multiple groups, and the radii of the circular arrangements of each group of first brush bristles are different. The second brush bristles are divided into multiple groups, and the radii of the circular arrangements of each group of second brush bristles are different.
[0014] Further, the lower ends of the first brush bristles and the second brush bristles are located in the same plane.
[0015] Further, the angle α between the first brush bristle and the rotation axis of the substrate is 125 degrees to 135 degrees, and the angle β between the second brush bristle and the rotation axis of the substrate is 120 to 130 degrees.
[0016] Further, the angle α between the first brush bristle and the rotation axis of the substrate is 130 degrees, and the angle β between the second brush bristle and the rotation axis of the substrate is 125 degrees.
[0017] Further, the angle α between the first brush bristle and the rotation axis of the substrate is greater than the angle β between the second brush bristle and the rotation axis of the substrate.
[0018] Further, the first brush bristle and the second brush bristle are made of the same material, and the diameter of the first brush bristle is greater than the diameter of the second brush bristle.
[0019] Further, it further includes a rotating shaft, the rotating shaft is fixedly connected to the substrate, and the axis of the rotating shaft coincides with the rotation axis of the substrate.
[0020] The present utility model has the following advantages:
[0021] 1. The first bristles with greater stiffness have a better effect in cleaning attachments with stronger adhesion, and the second bristles with smaller stiffness have a better effect in cleaning floating dust. When using the first bristles and the second bristles simultaneously, the cleaning effect is better than that of the prior art using only bristles with a single stiffness.
[0022] 2. Since the first bristles and the second bristles are used simultaneously, the overall stiffness of the bristles is lower than that of the prior art using only harder bristles. Under the same downward pressure, the contact area between the first bristles and the photovoltaic panel increases, improving the cleaning effect.
[0023] 3. Due to its greater stiffness, the first bristles have less elastic deformation and can maintain contact with the photovoltaic panel during rotation. At the same time, the first bristles located on the outside have a limiting effect on the second bristles, preventing the second bristles from deforming too much and losing contact with the photovoltaic panel, increasing the cleaning area and thus improving the cleaning efficiency. Moreover, when using a robot, the robot can be kept away from the edge of the photovoltaic panel, improving the safety of the robot. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present invention. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.
[0025] Figure 1 : Schematic cross-sectional structure diagram of the present invention;
[0026] Figure 2 : Schematic cross-sectional structure diagram of the prior art;
[0027] Figure 3 : Schematic three-dimensional structure diagram of the present invention;
[0028] Figure 4 : Top view of the present invention during operation. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The following further illustrates the present invention in conjunction with the drawings and examples:
[0030] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" 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 those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.
[0033] As Figure 1 , Figure 3 and Figure 4 shown, a disc-shaped cleaning brush for the surface of a photovoltaic panel includes: a first brush hair 11, a second brush hair 12, and a substrate 13. The upper ends of the first brush hair 11 and the second brush hair 12 are respectively fixedly connected to the substrate 13. The stiffness of the first brush hair 11 is greater than that of the second brush hair 12, and the distance from the first brush hair 11 to the rotation axis of the substrate 13 is greater than the distance from the second brush hair 12 to the rotation axis of the substrate 13.
[0034] Any of the following methods can be used to change the stiffness of the first brush hair 11 and the second brush hair 12:
[0035] Optionally, the material of the first brush hair 11 is different from that of the second brush hair 12, and the stiffness of the first brush hair 11 and the second brush hair 12 is adjusted by different materials.
[0036] Optionally, the materials of the first brush hair 11 and the second brush hair 12 are the same, and the diameter of the first brush hair 11 is greater than that of the second brush hair 12. The stiffness of the materials of the first brush hair 11 and the second brush hair 12 is changed by increasing the cross-sectional diameter.
[0037] Furthermore, the first brush hair 11 is arranged in a circular pattern around the rotation axis of the substrate 13, and the second brush hair 12 is arranged in a circular pattern around the rotation axis of the substrate 13.
[0038] Further, the first bristles 11 are divided into multiple groups, and the radii of the circular arrangements of each group of the first bristles 11 are different. The second bristles 12 are divided into multiple groups, and the radii of the circular arrangements of each group of the second bristles 12 are different. The multiple groups of bristles can ensure that the entire contact surface is cleaned more thoroughly, and stubborn stains (such as mud blocks, bird droppings, etc.) can be better removed and cleaned.
[0039] Further, the lower ends of the first bristles 11 and the lower ends of the second bristles 12 are located in the same plane.
[0040] Further, the angle α between the first bristles 11 and the rotation axis of the substrate 13 is 125 degrees to 135 degrees, and the angle β between the second bristles 12 and the rotation axis of the substrate 13 is 120 to 130 degrees.
[0041] Further, the angle α between the first bristles 11 and the rotation axis of the substrate 13 is 130 degrees, and the angle β between the second bristles 12 and the rotation axis of the substrate 13 is 125 degrees. With this angle setting, the combined cleaning effect of the first bristles 11 and the second bristles 12 is optimal.
[0042] Further, the angle α between the first bristles 11 and the rotation axis of the substrate 13 is greater than the angle β between the second bristles 12 and the rotation axis of the substrate 13. The advantage of the angle α being greater than the angle β is that when the second bristles 12 rotate, the contact between the first bristles 11 and the second bristles 12 restricts the excessive outward floating amplitude of the second bristles 12, avoiding the second bristles 12 detaching from the contact with the photovoltaic panel 9 due to excessive outward floating of the second bristles 12 (i.e., excessive elastic deformation of the second bristles 12), thereby ensuring that the second bristles 12 remain in contact with the surface of the photovoltaic panel 9 and maintaining the cleaning effect.
[0043] Further, it further includes a rotating shaft 14. The rotating shaft 14 is fixedly connected to the substrate 13, and the axis of the rotating shaft 14 coincides with the rotation axis of the substrate 13.
[0044] During operation, the first bristles 11 and the second bristles 12 are brought into contact with the surface of the photovoltaic panel 9, and the motor drives the substrate 13 to rotate. During rotation, due to the relatively large stiffness of the first bristles 11, the outer first bristles 11 basically do not detach from the contact with the photovoltaic panel 9, thus ensuring that the cleaning area does not decrease. The second bristles 12 with relatively small stiffness are limited by the outer first bristles 11, so they do not detach from the contact with the photovoltaic panel 9 due to centrifugal force.
[0045] When cleaning the edge 91 of the photovoltaic panel 9, since the outer first bristles 11 remain in contact with the photovoltaic panel 9 and the contact diameter of the cleaning brush is relatively large, the robot 2 can be located farther away from the edge 91, reducing the possibility of the robot 2 falling from the photovoltaic panel 9.
[0046] Since the first bristles 11 and the second bristles 12 are used at the same time, under a certain downward pressure, the elastic deformation degree of the first bristles 11 of the present application is greater than that of the prior art that uses all harder bristles, so the contact area between a single first bristle 11 and the photovoltaic panel 9 of the present application is larger than that of the prior art. Together with the contact area of the second bristles 12, the overall contact area of the present application is greater than that of the prior art that uses all harder bristles, and the cleaning effect is better.
[0047] When cleaning, Figure 4 As shown, the robot 2 drives the cleaning brush to move forward. The first bristles 11 first contact the attachments and remove the harder attachments, but due to the greater rigidity of the first bristles 11, some floating dust is not removed. Afterwards, as the robot 2 moves forward, the second bristles 12 contact the area cleaned by the first bristles 11 to further remove the remaining floating dust. Under the same conditions, the cleaning effect of the present application is better than that of the bristles of the same rigidity in the prior art.
[0048] It should be noted that the present application can be driven not only by the robot 2 but also by a manually operated cleaning rod.
[0049] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.
Claims
1. A disk-shaped cleaning brush for the surface of a photovoltaic panel, characterized in that, Comprising: A first bristle (11), a second bristle (12) and a substrate (13), wherein the upper ends of the first bristle (11) and the second bristle (12) are respectively fixedly connected to the substrate (13), the stiffness of the first bristle (11) is greater than that of the second bristle (12), and the distance from the first bristle (11) to the rotation axis of the substrate (13) is greater than the distance from the second bristle (12) to the rotation axis of the substrate (13).
2. The surface disk-type cleaning brush for a photovoltaic panel according to claim 1, wherein: The first bristles (11) are arranged in a circular pattern around the rotation axis of the substrate (13), and the second bristles (12) are arranged in a circular pattern around the rotation axis of the substrate (13).
3. The surface disk cleaning brush for a photovoltaic panel according to claim 2, wherein: The first bristles (11) are divided into multiple groups, and the radii of the circular arrangements of each group of first bristles (11) are different. The second bristles (12) are divided into multiple groups, and the radii of the circular arrangements of each group of second bristles (12) are different.
4. The surface disc cleaning brush for a photovoltaic panel according to claim 1, wherein: The lower ends of the first bristles (11) and the second bristles (12) are located in the same plane.
5. The surface disc type cleaning brush for a photovoltaic panel according to claim 1, characterized in that: The angle α between the first bristle (11) and the rotation axis of the substrate (13) is 125 degrees to 135 degrees, and the angle β between the second bristle (12) and the rotation axis of the substrate (13) is 120 to 130 degrees.
6. The surface disc cleaning brush for a photovoltaic panel according to claim 5, wherein: The angle α between the first bristle (11) and the rotation axis of the substrate (13) is 130 degrees, and the angle β between the second bristle (12) and the rotation axis of the substrate (13) is 125 degrees.
7. The disk-shaped cleaning brush for the surface of a photovoltaic panel according to claim 1, characterized in that: The angle α between the first bristle (11) and the rotation axis of the substrate (13) is greater than the angle β between the second bristle (12) and the rotation axis of the substrate (13).
8. The disk-type cleaning brush for the surface of a photovoltaic panel according to claim 1, wherein: The first bristles (11) and the second bristles (12) are made of the same material, and the diameter of the first bristles (11) is greater than the diameter of the second bristles (12).
9. The disk-shaped cleaning brush for the surface of a photovoltaic panel according to claim 1, characterized in that: It further includes a rotating shaft (14), the rotating shaft (14) is fixedly connected to the substrate (13), and the axis of the rotating shaft (14) coincides with the rotation axis of the substrate (13).