Sliding photovoltaic cleaning apparatus power supply

By using conductive carbon brushes and copper busbars for contact conductivity, combined with an elastic support mechanism and brush bristle design, the problem of unstable power supply for self-propelled photovoltaic cleaning robots has been solved, achieving stable power supply and efficient cleaning results, while reducing maintenance costs.

CN224384752UActive Publication Date: 2026-06-19DONGQI RUIHE (BEIJING) TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGQI RUIHE (BEIJING) TECHNOLOGY CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-19

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Abstract

This utility model relates to a power supply device for a sliding photovoltaic cleaning equipment, including a self-propelled cleaning robot mounted on a solar panel. A control box is installed on the outer surface of the self-propelled cleaning robot, and an insulated guide rail is installed along the length of the rear side of the solar panel. Two parallel copper busbars are installed inside the insulated guide rail; both ends of the copper busbars are connected to an external power source. A fixed bracket is installed on the outer surface of the self-propelled cleaning robot, and two conductive carbon brushes are mounted on the outer surface of the fixed bracket via a carbon brush holder, with each conductive carbon brush contacting one of the two copper busbars. Conductivity is achieved through the contact between the conductive carbon brushes and the copper busbars. When the self-propelled cleaning robot slides along the surface of the solar panel for cleaning, the conductive carbon brushes move accordingly, ensuring a stable and continuous power supply to the self-propelled cleaning robot during its sliding process. This achieves high cleaning power, stable performance, strong adaptability, simple installation, and low-cost operation and maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, specifically to a sliding photovoltaic cleaning equipment power supply device. Background Technology

[0002] With the development of green energy in China, a large number of photovoltaic power plants have been built and put into operation. Since photovoltaic power generation equipment is located outdoors, it is affected by dust accumulation and wind and sand pollution, significantly reducing power generation efficiency. Therefore, the demand for cleaning photovoltaic panels is increasing daily, and manual cleaning can no longer meet the cleaning needs of large-scale photovoltaic power plants. The main reason for cleaning photovoltaic panels is that dust accumulation affects power generation efficiency. According to incomplete statistics, if photovoltaic panels are not cleaned for one month, the power generation rate will decrease by 1-3% (depending on air pollution levels). If they are not cleaned for a year, the power generation rate will decrease by 10-30%, seriously affecting the profitability of photovoltaic power plants. Therefore, a series of photovoltaic cleaning robots have emerged. Currently, the main types of solar cleaning robots on the market are self-propelled cleaning robots and wire-guided cleaning robots.

[0003] Among them, self-propelled cleaning robots are powered by solar batteries and can automatically walk on photovoltaic panels to achieve unmanned, automatic, and timed cleaning, greatly improving cleaning efficiency. Their main components include a walking track, cleaning components, a walking drive system, a battery power supply system, and a control system. However, their battery power supply system is not stable enough, suffering from problems such as limited battery power, restricted charging, poor environmental adaptability, short lifespan, difficult maintenance, and complex and costly after-sales maintenance, causing inconvenience in use. Utility Model Content

[0004] The purpose of this invention is to provide a sliding photovoltaic cleaning equipment power supply device, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A sliding photovoltaic cleaning equipment power supply device includes a self-propelled cleaning robot mounted on a solar panel. A control box is installed on the outer surface of the self-propelled cleaning robot. An insulated guide rail is installed along the length of the rear side of the solar panel, and two parallel copper busbars are arranged inside the insulated guide rail. A fixed bracket is installed on the outer surface of the self-propelled cleaning robot. Two conductive carbon brushes are mounted on the outer surface of the fixed bracket via a carbon brush holder, and the two conductive carbon brushes are in contact with the two copper busbars respectively. The two ends of the copper busbars are connected to an external power supply. The conductive carbon brushes are electrically connected to the control box via connecting cables.

[0007] As can be seen, the conductive carbon brush and copper busbar provide electricity to the self-propelled cleaning robot through contact. When the self-propelled cleaning robot slides along the surface of the solar panel to perform cleaning work, the conductive carbon brush also moves along with it, thereby ensuring a stable and continuous power supply for the self-propelled cleaning robot during the sliding process. This achieves the goals of high cleaning power, stable performance, strong adaptability, simple installation, and low-cost operation and maintenance.

[0008] Furthermore, the outer surface of the mounting bracket is provided with two insulating mounting plates, each corresponding to one of the two carbon brush holders. An elastic support mechanism is provided between the insulating mounting plates and the carbon brush holders, which is used to apply an elastic thrust to the conductive carbon brushes.

[0009] Furthermore, the elastic support mechanism includes a telescopic rod mounted on the outer surface of the insulating fixing plate, with its end connected to the carbon brush holder. A spring is fitted onto the outer surface of the telescopic rod, with both ends of the spring abutting against the insulating fixing plate and the carbon brush holder, respectively.

[0010] Furthermore, brush plates are installed on both sides of the outer surface of the insulating fixing plate via connecting plates. The outer surface of the brush plates is provided with bristles, which are in contact with the outer surface of the copper busbar.

[0011] Furthermore, an insulating partition is installed inside the insulated rail and between the two copper busbars.

[0012] Furthermore, the two sides of the carbon brush holder and the brush plate are in contact with the inner walls on both sides between the insulating guide rail and the insulating partition, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0014] 1. This utility model provides power to the self-propelled cleaning robot by conducting electricity through the contact between the conductive carbon brush and the copper busbar. When the self-propelled cleaning robot slides along the surface of the solar panel to perform cleaning work, the conductive carbon brush will also move along with it, thereby ensuring a stable and continuous power supply for the self-propelled cleaning robot during the sliding process, thus achieving the purpose of high cleaning power, stable performance, strong adaptability, simple installation, and low-cost operation and maintenance.

[0015] 2. This utility model applies elastic thrust to the conductive carbon brush through an elastic support mechanism, which can ensure good contact pressure between the conductive carbon brush and the copper busbar. When vibration occurs during the sliding process of the self-propelled cleaning robot, the position and pressure of the conductive carbon brush can be automatically adjusted, and it can also adapt to the wear changes of the conductive carbon brush to ensure the stability of the contact.

[0016] 3. By designing the brush bristles, this utility model can move the brush bristles along with the self-propelled cleaning robot during its sliding motion, thereby achieving the purpose of cleaning the surface of the copper busbar, avoiding the adhesion of dust and other impurities, maintaining good conductivity, and reducing contact resistance and sparks. Attached Figure Description

[0017] Figure 1 This is one of the three-dimensional schematic diagrams of a partial structure of this utility model;

[0018] Figure 2 This is the second three-dimensional schematic diagram of a partial structure of this utility model;

[0019] Figure 3 This is a partial side view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the fixed bracket in this utility model. Detailed Implementation

[0021] Please see Figure 1-4 The present invention provides a sliding photovoltaic cleaning equipment power supply device, including a solar panel 1, a self-propelled cleaning robot 2, a control box 201, a fixed bracket 202, an insulated guide rail 3, a copper busbar 301, an insulated partition 302, a conductive carbon brush 4, a carbon brush fixing frame 401, a connecting cable 402, an insulated fixing plate 5, a connecting plate 501, a brush plate 502, brush bristles 503, an elastic support mechanism 6, a telescopic rod 601, and a spring 602.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0025] The self-propelled cleaning robot 2 is mounted on the solar panel 1. The self-propelled cleaning robot 2 uses existing photovoltaic cleaning robot equipment, which will not be described in detail here. A control box 201 is installed on the outer surface of the self-propelled cleaning robot 2, which controls its cleaning and walking movements. An insulated guide rail 3 is installed along the length of the rear side of the solar panel 1. Inside the insulated guide rail 3 are two parallel copper busbars 301. The insulated guide rail 3 provides insulation and fixation for the copper busbars 301, which are used to provide power. The outer surface of the self-propelled cleaning robot 2 is equipped with a fixed bracket 202. Two conductive carbon brushes 4 are mounted on the outer surface of the fixed bracket 202 via carbon brush holders 401. Each conductive carbon brush 4 is in contact with one of two copper busbars 301. The two ends of the copper busbars 301 are connected to an external power source. The conductive carbon brushes 4 are electrically connected to the control box 201 via connecting cables 402. The fixed bracket 202 integrates the conductive carbon brushes 4 with the self-propelled cleaning robot 2, allowing the robot to move the conductive carbon brushes 4 as it slides. The carbon brush holders 401 provide insulation and fixation for the conductive carbon brushes 4. When the conductive carbon brushes 4 contact the copper busbars 301, power is transmitted to the control box 201 via the connecting cables 402, thus providing power. Two insulating fixing plates 5 are provided on the outer surface of the fixed bracket 202, each corresponding to one of the two carbon brush holders 401. An elastic support mechanism 6 is provided between the insulating fixing plate 5 and the carbon brush fixing frame 401. The elastic support mechanism 6 is used to apply elastic thrust to the conductive carbon brush 4. The insulating fixing plate 5 can play an insulating role to avoid leakage and short circuit. Furthermore, the elastic support mechanism 6 can ensure good contact pressure between the conductive carbon brush 4 and the copper busbar 301. When vibration occurs during the sliding process of the self-propelled cleaning robot 2, the position and pressure of the conductive carbon brush 4 can be automatically adjusted. It can also adapt to the wear changes of the conductive carbon brush 4 to ensure the stability of the contact.

[0026] Please see Figure 3 and Figure 4 The elastic support mechanism 6 includes a telescopic rod 601 mounted on the outer surface of the insulating fixing plate 5, with its end connected to the carbon brush holder 401. A spring 602 is sleeved on the outer surface of the telescopic rod 601, with both ends of the spring 602 abutting against the insulating fixing plate 5 and the carbon brush holder 401, respectively. Under the elastic force of the spring 602, a continuous pushing force can be applied to the conductive carbon brush 4, ensuring stable contact between it and the copper busbar 301. Furthermore, the telescopic rod 601 not only ensures a reliable connection between the carbon brush holder 401 and the insulating fixing plate 5, but also provides lateral support for the spring 602, preventing bending and deformation of the spring 602 and ensuring that the spring 602 applies a vertical pushing force to the conductive carbon brush 4.

[0027] Please see Figure 3 and Figure 4 Brush plates 502 are installed on both sides of the outer surface of the insulating fixing plate 5 via connecting plates 501. The outer surface of the brush plates 502 is provided with bristles 503. The bristles 503 are in contact with the outer surface of the copper busbar 301. Since the solar panel 1 is installed in the outdoor environment and the copper busbar 301 is directly exposed to the outside world, dust and impurities in the air are easy to adhere to the surface of the copper busbar 301. Therefore, by setting the bristles 503, when the self-propelled cleaning robot 2 slides, the connecting plates 501 can drive the bristles 503 to move accordingly, thereby achieving the purpose of cleaning the surface of the copper busbar 301, avoiding the adhesion of dust and other impurities, maintaining good conductivity, and reducing contact resistance and sparks.

[0028] Please see Figure 3 An insulating partition 302 is installed inside the insulating guide rail 3, located between the two copper busbars 301. The insulating partition 302 isolates the two copper busbars 301, preventing discharge or short circuit accidents caused by excessive voltage between them, thus ensuring equipment safety. The two sides of the carbon brush holder 401 and brush plate 502 contact the inner walls of the insulating guide rail 3 and the insulating partition 302, respectively. When the carbon brush holder 401 and brush plate 502 slide between the insulating guide rail 3 and the insulating partition 302, they act as sliders and rails, providing limiting functions for the carbon brush holder 401 and brush plate 502, ensuring their stability during sliding, and further improving the stability of the power supply.

[0029] The specific workflow and working principle of this device are as follows.

[0030] In use, first install the insulated guide rail 3 on the rear side of the solar panel 1, then fix the conductive carbon brush 4 and the fixing bracket 202 to the self-propelled cleaning robot 2, so that the conductive carbon brush 4 can maintain stable contact with the copper busbar 301 under the elastic force of the spring 602. Connect the connecting cable 402 to the control box 201 of the self-propelled cleaning robot 2 through the power supply terminal (not shown in the figure) of the conductive carbon brush 4. Next, connect the copper busbar 301 to the 220V mains power. Through the contact between the conductive carbon brush 4 and the copper busbar 301, conduction is provided to the self-propelled cleaning robot 2, enabling it to operate. Upon receiving the cleaning task command, it moves to the left to begin cleaning.

[0031] As the self-propelled cleaning robot 2 slides along the surface of the solar panel 1 to perform cleaning work, the conductive carbon brush 4 moves along with it, ensuring a stable and continuous power supply to the robot during its movement. When the robot reaches the leftmost end of the solar panel 1 and contacts the limit switch, it moves back to continue cleaning, returning to the reset position and stopping, thus completing one cleaning task. The entire process is powered by the conductive carbon brush 4 and the copper busbar 301. This achieves the goals of high cleaning power, stable performance, strong adaptability, simple installation, and low-cost operation and maintenance.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sliding photovoltaic cleaning equipment power supply device, comprising a self-propelled cleaning robot (2) mounted on a solar panel (1), wherein a control box (201) is mounted on the outer surface of the self-propelled cleaning robot (2), characterized in that: An insulating guide rail (3) is installed on the rear side of the solar panel (1) along its length, and two parallel copper busbars (301) are arranged inside the insulating guide rail (3). The self-propelled cleaning robot (2) has a fixed bracket (202) installed on its outer surface. Two conductive carbon brushes (4) are installed on the outer surface of the fixed bracket (202) through a carbon brush holder (401). The two conductive carbon brushes (4) are in contact with two copper busbars (301) respectively. The two ends of the copper busbars (301) are connected to an external power supply. The conductive carbon brushes (4) are electrically connected to the control box (201) through a connecting cable (402).

2. The sliding photovoltaic cleaning equipment power supply device according to claim 1, characterized in that: The outer surface of the fixed bracket (202) is provided with two insulating fixing plates (5), and the two insulating fixing plates (5) correspond to the two carbon brush fixing brackets (401) respectively; An elastic support mechanism (6) is provided between the insulating fixing plate (5) and the carbon brush fixing frame (401), and the elastic support mechanism (6) is used to apply an elastic thrust to the conductive carbon brush (4).

3. The sliding photovoltaic cleaning equipment power supply device according to claim 2, characterized in that: The elastic support mechanism (6) includes a telescopic rod (601) installed on the outer surface of the insulating fixing plate (5), and the end of the telescopic rod (601) is connected to the carbon brush fixing frame (401). A spring (602) is fitted on the outer surface of the telescopic rod (601), and the two ends of the spring (602) abut against the insulating fixing plate (5) and the carbon brush fixing bracket (401) respectively.

4. The sliding photovoltaic cleaning equipment power supply device according to claim 3, characterized in that: Brush plates (502) are installed on both sides of the outer surface of the insulating fixing plate (5) via connecting plates (501). The outer surface of the brush plate (502) is provided with bristles (503), and the bristles (503) are in contact with the outer surface of the copper busbar (301).

5. A sliding photovoltaic cleaning equipment power supply device according to claim 4, characterized in that: An insulating partition (302) is installed inside the insulating guide rail (3) and between the two copper busbars (301).

6. The sliding photovoltaic cleaning equipment power supply device according to claim 5, characterized in that: The two sides of the carbon brush holder (401) and the brush plate (502) are in contact with the inner walls of the two sides between the insulating guide rail (3) and the insulating partition (302), respectively.