Fine cleaning machine for photovoltaic panel
By designing a photovoltaic panel cleaning machine with a simple mechanical structure based on the principle of leverage, the problems of complex structure and environmental interference of existing equipment are solved, automated cleaning and dirt cleaning are realized, and the power generation efficiency of photovoltaic panels is improved.
Patent Information
- Application Number
- CN202420345238.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The existing photovoltaic panel cleaning equipment is complex and environmental interference (such as insufficient lighting conditions and extreme weather) will cause environmental sensor identification failure and cannot continuously clean the dirt on the photovoltaic panel, especially in arid areas with limited water resources, resulting in dirt accumulation and reduced power generation efficiency. .
A photovoltaic panel cleaning machine was designed, which adopts a simple mechanical structure, including a mobile body, a liquid spray assembly and a dirt removal part. It automatically sprays the cleaning liquid through the lever principle to soften the dirt, and drives the dirt removal part to clean the dirt by driving the dirt removal part to clean the dirt. No interference from light and extreme weather.
It realizes automatic cleaning of dirt on the surface of the photovoltaic panel without being disturbed by the environment, keeping the surface clean, and improving the power generation efficiency of the photovoltaic panel.
Smart Images
Figure CN222234792U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of photovoltaic panel dust removal, and in particular relates to a photovoltaic panel fine washing machine. Background Art
[0002] Photovoltaic panels have gradually become one of the most promising new energy projects in my country due to their high power generation efficiency and low maintenance costs. However, photovoltaic panels are often installed in wild areas such as deserts and plains, and their surfaces are easily polluted by wet sand, bird droppings, etc. The pollutants adhere to the surface of the photovoltaic panels and form raised dirt under the wind and sun. They can only fall off the surface of the photovoltaic panels when washed by rain. However, some areas are dry and rainless, and water resources are very limited, resulting in the long-term lack of cleaning of the surface of the photovoltaic panels, serious accumulation of dirt, and reduced power generation efficiency of the photovoltaic panels.
[0003] In the prior art, a Chinese utility model patent with publication number CN106345782B discloses a photovoltaic panel on-board cleaning device and cleaning method, the cleaning device includes an on-board cleaning machine, a carrier connected to the upper part of the on-board cleaning machine, a mover fixed to the lower part of the carrier, and a controller. The on-board cleaning machine is provided with an environmental sensor electrically connected to the controller, and the controller detects whether there is a cleaning object on the photovoltaic panel through the environmental sensor, and generates a corresponding cleaning instruction according to the type of the cleaning object. Although the device can select corresponding cleaning instructions for different cleaning objects on the photovoltaic panel to achieve the purpose of improving the cleaning efficiency, its operation process requires the cooperation of precise environmental sensors and multiple electrical components. Not only is the structure complex, but once the environmental sensor fails to recognize dirt due to environmental interference (such as insufficient light conditions, extreme weather, etc.), the cleaning device cannot continuously clean the dirt on the photovoltaic panel. Summary of the invention
[0004] Based on the above background technology needs, the utility model discloses a photovoltaic panel fine cleaning machine, which can accurately clean the dirt on the photovoltaic panel with a simple structure and strong environmental adaptability.
[0005] In order to achieve the above object, the technical solution of the utility model is:
[0006] A photovoltaic panel cleaning machine comprises: a mobile body, which is used to cover the surface of the photovoltaic panel and can move on the surface of the photovoltaic panel; a plurality of spray components are arranged on one side of the mobile body adjacent to the surface of the photovoltaic panel, and the spray component includes an infusion tube, a dirt contact rod and a nozzle, the infusion tube is pre-stored with cleaning liquid, the inner side of the infusion tube is slidably connected with a piston push rod, and the nozzle is connected with the liquid outlet of the infusion tube; the dirt contact rod is rotatably arranged on the outside of the infusion tube, and one end of the dirt contact rod is hinged to the piston push rod, when the dirt contact rod is away from one end of the piston push rod and contacts the dirt on the surface of the photovoltaic panel, the piston push rod pushes the cleaning liquid from the nozzle to spray the photovoltaic panel; a dirt removal part is arranged on the side of the mobile body away from the nozzle, and the dirt removal part is driven to clean the dirt during the movement of the mobile body.
[0007] Preferably, the nozzle is fixed to one side of the dirt contact rod along the length extension direction of the dirt contact rod, and the nozzle is connected to the water inlet of the infusion tube through a water supply hose.
[0008] Preferably, a liquid storage tank is provided in the mobile body, the liquid storage tank is used to store the cleaning liquid, and the liquid storage tank is communicated with the liquid inlet of the infusion tube.
[0009] Preferably, a first one-way valve is provided at the liquid inlet of the infusion tube, and the flow direction of the first one-way valve is toward the infusion tube; and a second one-way valve is provided at the liquid outlet of the infusion tube, and the flow direction of the second one-way valve is toward the nozzle.
[0010] Preferably, the liquid spraying assembly further comprises a reset shaft, a fixed end of the reset shaft is connected to the outside of the liquid infusion tube, and a rotating end of the reset shaft is connected to the dirt contact rod.
[0011] Preferably, the dirt removing portion comprises a scraper bar, the scraper bar is arranged on one side of the mobile body, and one side of the scraper bar extending along the length direction can contact the photovoltaic panel.
[0012] Preferably, the angle between one side of the scraper strip extending in the length direction and the edge of the lower side of the photovoltaic panel in the length direction is acute.
[0013] Preferably, a roller brush is rotatably provided on one side of the mobile body, and the roller brush is used to clean floating dust on the surface of the photovoltaic panel along with the mobile body.
[0014] By adopting the above technical solution, compared with the prior art, the utility model has at least the following beneficial effects:
[0015] During the movement of the mobile body along the surface of the photovoltaic panel, the nozzle is automatically triggered to spray cleaning liquid on the dirt through a simple mechanical structure based on the lever principle, thereby softening the dirt and destroying the stickiness of the dirt. The dirt removing part can clean the soaked dirt and cleaning liquid residues as the mobile body moves, so that the surface of the photovoltaic panel remains clean. The entire cleaning operation is not affected by environmental factors such as lighting conditions and most extreme weather conditions, and can be carried out at any time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic cross-sectional view of the structure of a photovoltaic panel cleaning machine in one embodiment.
[0017] Figure 2 It is a partially enlarged schematic diagram of a photovoltaic panel cleaning machine in one embodiment.
[0018] Figure 3 Schematic diagram of the bottom surface of a photovoltaic panel cleaning machine in one embodiment.
[0019] Figure 4 It is a schematic diagram of the installation of a mobile body and a photovoltaic panel in one embodiment.
[0020] In the figure: a mobile body 10, a liquid spraying assembly 11, a liquid infusion tube 111, a dirt contact rod 112, a nozzle 113, a piston push rod 114, a water supply hose 115, a first one-way valve 116, a second one-way valve 117, a reset shaft 118, a dirt removing part 12, a scraper strip 121, a liquid storage tank 13, a roller brush 14, and a photovoltaic panel 20. DETAILED DESCRIPTION
[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The technical solution of the present invention will be further described below in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.
[0022] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "inner", "outer", "left", "right", "front", "back", "top", "bottom" and the like indicating directions or positional relationships, they are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the structure or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0023] The following is combined with Figure 1-4The utility model is further described in detail with reference to specific embodiments.
[0024] Embodiment 1: A photovoltaic panel fine cleaning machine comprises a mobile body 10, which is used to cover the surface of a photovoltaic panel 20 and can move on the surface of the photovoltaic panel 20; a plurality of liquid spraying components 11 are arranged on one side of the mobile body 10 adjacent to the surface of the photovoltaic panel 20, and the liquid spraying components 11 include a liquid infusion tube 111, a dirt contact rod 112 and a nozzle 113, a cleaning liquid is pre-stored in the liquid infusion tube 111, a piston push rod 114 is slidably connected to the inner side of the liquid infusion tube 111, and the nozzle 113 is connected to the liquid infusion tube 111. The liquid outlet is connected; the dirt contact rod 112 can be rotatably arranged on the outside of the infusion tube 111, and one end of the dirt contact rod 112 is hinged to the piston push rod 114. When the dirt contact rod 112 is away from the end of the piston push rod 114 and contacts the dirt on the surface of the photovoltaic panel 20, the piston push rod 114 pushes the cleaning liquid from the nozzle 113 to spray the photovoltaic panel 20; a dirt removal part 12 is provided on the side of the mobile body 10 away from the nozzle 113, and the dirt removal part 12 is driven to clean the dirt during the movement of the mobile body 10.
[0025] Specifically, the mobile body 10 can be connected to both sides of the photovoltaic panel 20 in the length direction through rail components such as tracks and slots for directional movement, so that the mobile body 10 can cover the surface of the photovoltaic panel 20 and travel along the length direction of the photovoltaic panel 20; the spray assembly 11 is arranged at the bottom of the mobile body 10 in reverse arrangement along the width of the photovoltaic panel 20; the infusion tube 111 and the piston push rod 114 form a chamber for storing liquid, and a certain amount of water or a cleaning liquid for cleaning bird droppings, sand and other dirt on the photovoltaic panel 20 is pre-stored in the chamber; the dirt contact rod 112 is a rod with a thin stick-shaped upper end and a flat plate-shaped lower end. The thinner upper end can save the gap range required for rotation, and the flat plate-shaped lower end can increase the contact area with the dirt, so that the dirt contact rod 112 is triggered to rotate by the dirt; the dirt contact rod 112 is The rotating component is fixed to the lower outer part of the infusion tube 111. When the dirt contact rod 112 is in the initial position, the dirt contact rod 112 extends downward in the vertical direction, and the lower end can be close to the surface of the photovoltaic panel 20, but does not contact the photovoltaic panel 20; the nozzle 113 is adjacent to the dirt contact rod 112 and is located in front of the dirt contact rod 112. When the dirt contact rod 112 touches the dirt during the movement of the mobile body 10, the contact rod 112 is hindered by the dirt and rotates, and is linked with the piston push rod 114, so that the cleaning liquid is sprayed from the nozzle 113 to the dirt, so as to achieve the effect of accurately softening the dirt or destroying the stickiness of the dirt; the dirt removing part 12 can wipe the surface of the photovoltaic panel 20 with the mobile body 10 during the movement, so as to achieve the purpose of wiping off the dirt and the residue of the cleaning liquid, so as to keep the surface of the photovoltaic panel 20 clean.
[0026] As some preferred implementations of this embodiment:
[0027] Furthermore, the nozzle 113 is fixed to one side of the dirt contact rod 112 along the length extension direction of the dirt contact rod 112 , and the nozzle 113 is connected to the water inlet of the infusion tube 111 through the water supply hose 115 .
[0028] When using the above device, the lower end of the dirt contact rod 112 is gradually deflected backwards by the dirt while passing through the dirt. During this process, the nozzle 113 located on the front side of the dirt contact rod 112 can rotate with the dirt contact rod 112, so that the nozzle 113 can always spray the dirt at the lower end of the dirt contact rod 112, thereby improving the spraying range and accuracy of the cleaning liquid, thereby increasing the area where the dirt can be sprayed and soaked by the cleaning liquid, and increasing the probability of removing stubborn dirt.
[0029] Furthermore, a liquid storage tank 13 is disposed in the mobile body 10 . The liquid storage tank 13 is used to store the cleaning liquid, and the liquid storage tank 13 is communicated with the liquid inlet of the liquid infusion tube 111 .
[0030] Specifically, the liquid storage tank 13 is provided with a cleaning liquid addition port outside the mobile body 10 to ensure that there is sufficient cleaning liquid for use; a booster device can be provided between the liquid storage tank 13 and the infusion tube 111, or the liquid storage tank 13 can be provided above the infusion tube 111, so that the liquid storage tank 13 can transport cleaning liquid to the infusion tube 111 after the spraying is completed.
[0031] When using the above device, when the pre-stored cleaning liquid in the infusion tube 111 is sprayed out, the infusion tube 111 is in a low-pressure state, and the cleaning liquid in the liquid storage tank 13 flows into the infusion tube 111, causing the piston push rod 114 to retreat and push the dirt contact rod 112 to rotate back to the initial position, so as to trigger the spray assembly 11 again.
[0032] Furthermore, a first one-way valve 116 is provided at the liquid inlet of the infusion tube 111 , and the flow direction of the first one-way valve 116 is toward the infusion tube 111 ; a second one-way valve 117 is provided at the liquid outlet of the infusion tube 111 , and the flow direction of the second one-way valve 117 is toward the nozzle 113 .
[0033] Furthermore, the liquid spraying assembly 11 further includes a reset shaft 118 , a fixed end of the reset shaft 118 is connected to the outer side of the liquid delivery tube 111 , and a rotating end of the reset shaft 118 is connected to the dirt contact rod 112 .
[0034] Specifically, a reset shaft is disclosed in the utility model with publication number CN201730957U, and a rotation reset device is arranged between the free end and the fixed end, so that the deflected free end can be rotated back to the initial position. The dirt contact rod 112 is rotationally connected to the lower end of the outer side of the infusion tube 111 by using the reset shaft, which can increase the rotation speed of the dirt contact rod 112; the first one-way valve 116 opens when the dirt contact rod 112 swings back, so that the infusion tube 111 draws cleaning liquid from the liquid storage tank 13; the second one-way valve 117 opens when the dirt contact rod 112 rotates backward, and the cleaning liquid is sprayed out. The above structure can control the spray amount of the nozzle 113 during the swing of the dirt contact rod 112, so as to achieve the purpose of water saving.
[0035] Furthermore, the dirt removing portion 12 includes a scraper bar 121 . The scraper bar 121 is disposed on one side of the mobile body 10 , and one side of the scraper bar 121 extending along the length direction can contact the surface of the photovoltaic panel 20 .
[0036] Specifically, the scraper bar 121 is made of materials such as rubber or silicone, and has a certain degree of extensibility and low hardness; an installation groove is opened on the lower side of the mobile body 10 away from the nozzle 113, and the scraper bar 121 is installed along the installation groove to facilitate replacement of the scraper bar 121; the scraper bar 121 is behind the nozzle 113 and moves with the mobile body 10, and can wipe off the soaked dirt from the surface of the photovoltaic panel 20 by "scraping" or "pushing".
[0037] Furthermore, the angle between one side of the scraper strip 121 extending in the length direction and the edge of the lower side of the photovoltaic panel 20 along the length direction is acute.
[0038] Specifically, since the photovoltaic panel 20 is installed at a certain angle when it is set so that it can receive more light, the scraper bar 121 is set at an angle at the bottom of the mobile body 10, and when the mobile body 10 covers the surface of the photovoltaic panel 20, the scraper bar 121 and the edge of the lower side of the photovoltaic panel 20 along the length direction are at an acute angle, which can enable the scraper bar 121 to quickly drive the dirt to the lower edge of the photovoltaic panel 20 and drop it during the process of moving along the surface of the photovoltaic panel 20.
[0039] Furthermore, a roller brush 14 is rotatably provided on the lower side of the mobile body 10 in front of the nozzle 113 , and the surface of the roller brush 14 is used to clean floating dust on the surface of the photovoltaic panel 20 along with the mobile body 10 .
[0040] Specifically, the outer side of the roller brush 14 is covered with bristles that can form an adsorption effect through static electricity. The bristles can contact the surface of the photovoltaic panel 20 during rotation. The roller brush 14 wipes off the pollutants adhering to the surface of the photovoltaic panel 20 in advance during the rolling process to prevent the floating dust around the dirt from absorbing the cleaning liquid to form mud and dirt, resulting in poor cleaning effect.
[0041] Furthermore, a limiting roller is rotatably arranged at the lower side of the mobile body 10, a slot is arranged on the wheel surface of the limiting roller, guide rails are arranged on both sides of the photovoltaic panel 20 extending along the length direction, and the limiting roller rollingly connects the mobile body 10 and both sides of the photovoltaic panel 20 through the slot.
[0042] Specifically, the mobile body 10 has a built-in motor and a controller. The motor is connected to the limit roller through a bevel gear set. The controller is electrically connected to the motor and forms a control loop to control parameters such as the motor speed, steering time and rotation time, so that the mobile body 10 can move back and forth on the surface of the photovoltaic panel 20 at a fixed speed; the limit roller is connected to the roller brush 14 through a transmission belt and a bevel gear set. By setting the transmission ratio, the roller brush 14 rotates with the mobile body 10 to prevent the roller brush 14 from slipping and losing its cleaning effect.
[0043] Through the above implementation, at least the following technical effects are achieved:
[0044] When the mobile body 10 moves along the surface of the photovoltaic panel 20, the nozzle 113 is automatically triggered to spray cleaning liquid on the dirt through a simple mechanical structure based on the lever principle, so as to soften the dirt and destroy the stickiness of the dirt. The dirt removing part 12 can clean the soaked dirt and cleaning liquid residues as the mobile body 10 moves, so that the surface of the photovoltaic panel 20 remains clean. The entire cleaning operation is not affected by environmental factors such as lighting conditions and most extreme weather conditions, and can be carried out at any time.
[0045] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A photovoltaic panel cleaning machine, characterized in that: include: A mobile body is used to cover the surface of a photovoltaic panel and can move on the surface of the photovoltaic panel; a plurality of spray components are arranged on one side of the mobile body adjacent to the surface of the photovoltaic panel, and the spray component includes an infusion tube, a dirt contact rod and a nozzle, the infusion tube is pre-stored with cleaning liquid, the inner side of the infusion tube is slidably connected with a piston push rod, and the nozzle is connected with the liquid outlet of the infusion tube; the dirt contact rod is rotatably arranged on the outside of the infusion tube, and one end of the dirt contact rod is hinged to the piston push rod, when the dirt contact rod is away from one end of the piston push rod and contacts the dirt on the surface of the photovoltaic panel, the piston push rod pushes the cleaning liquid from the nozzle to spray the photovoltaic panel; a dirt removal part is arranged on the side of the mobile body away from the nozzle, and the dirt removal part is driven to clean the dirt during the movement of the mobile body.
2. The photovoltaic panel cleaning machine according to claim 1, characterized in that: The nozzle is fixed to one side of the dirt contact rod along the length extension direction of the dirt contact rod, and the nozzle is communicated with the water inlet of the liquid infusion pipe through a water supply hose.
3. The photovoltaic panel cleaning machine according to claim 2, characterized in that: A liquid storage tank is arranged in the mobile body, and the liquid storage tank is used to store cleaning liquid, and the liquid storage tank is communicated with the liquid inlet of the liquid infusion tube.
4. The photovoltaic panel cleaning machine according to claim 3, characterized in that: A first one-way valve is provided at the liquid inlet of the infusion tube, and the flow direction of the first one-way valve is toward the infusion tube; and a second one-way valve is provided at the liquid outlet of the infusion tube, and the flow direction of the second one-way valve is toward the nozzle.
5. The photovoltaic panel cleaning machine according to claim 4, characterized in that: The liquid spraying assembly further comprises a reset shaft, a fixed end of which is connected to the outside of the liquid infusion tube, and a rotating end of which is connected to the dirt contact rod.
6. The photovoltaic panel cleaning machine according to claim 1, characterized in that: The dirt removing part comprises a scraper bar, which is arranged on one side of the moving body, and one side of the scraper bar extending along the length direction can contact the photovoltaic panel.
7. The photovoltaic panel cleaning machine according to claim 6, characterized in that: The angle between one side of the scraper strip extending in the length direction and the edge of the lower side of the photovoltaic panel in the length direction is acute.
8. The photovoltaic panel cleaning machine according to claim 1, characterized in that: A rolling brush is rotatably provided on one side of the mobile body, and the rolling brush is used to clean floating dust on the surface of the photovoltaic panel along with the mobile body.