Mechanical linkage photovoltaic water cleaning device

Abstract

The utility model relates to the field of photovoltaic cleaning devices, in particular to a mechanical linkage photovoltaic water cleaning device which comprises two water wheels, a linkage device and a driving module, each water wheel is provided with a rotating shaft, the bottom end of each rotating shaft is connected with a brush, and the linkage device is connected with the driving module. The linkage device comprises synchronous wheels arranged on the two rotating shafts and a synchronous belt connected with the two synchronous wheels, and the driving module is matched with the water wheels so as to provide high-pressure water flow driving for at least one water wheel. According to the scheme, synchronous rotation of the brushes is achieved through the linkage device, and synchronous rotation of the two brushes is achieved. The problem that the rotating speeds of the brushes on the two sides are inconsistent due to factors such as non-uniform water flow distribution and manufacturing process errors is effectively solved, the situation that the cleaning strength of all areas on the surface of the photovoltaic panel is uneven is solved, stubborn dirt can be better removed, photovoltaic panel abrasion caused by excessive cleaning is avoided, and the service life of the photovoltaic panel is prolonged. And the service life of the photovoltaic panel is prolonged while the cleaning effect is ensured.

Description

A mechanically linked photovoltaic water cleaning device Technical Field

[0001] This utility model relates to the field of photovoltaic cleaning devices, specifically to a mechanically linked photovoltaic water cleaning device. Background Technology

[0002] Against the backdrop of a global acceleration towards clean energy transition, photovoltaic (PV) power generation, as a crucial component of green energy, continues to expand its application scale. However, PV panels face numerous challenges during actual operation, with the accumulation of surface contaminants being particularly prominent. Dust, bird droppings, and other pollutants continuously deposit on the surface of PV panels, acting like a "shackle" that severely hinders light transmission, resulting in a significant decrease in power generation efficiency. According to relevant research data, if surface contaminants on PV panels are not cleaned promptly, power generation efficiency can decrease by 15%-30%. This not only directly impacts the economic benefits of PV power generation systems but also negatively affects the stability of energy supply.

[0003] Currently, many water-based cleaning devices on the market employ a double-sided brush structure, relying on water flow for cleaning. Taking the power unit of a water-based cleaning machine disclosed in patent number 202322681587.4 as an example, its two brushes are driven by independent water flows, a design with significant drawbacks. In actual operation, due to uneven water flow distribution and manufacturing errors, the rotation speed of the brushes on both sides is difficult to maintain consistently. This difference in rotation speed results in uneven cleaning intensity across different areas of the photovoltaic panel surface. Some stubborn dirt is difficult to remove, while other areas experience wear due to over-cleaning, affecting the lifespan of the photovoltaic panel. Simultaneously, the asymmetrical rotation speed causes the transmission and moving parts to bear uneven forces. Under long-term operation, this accelerates component wear, significantly increases the frequency of malfunctions, and substantially raises equipment maintenance costs, severely limiting the widespread application of photovoltaic water-based cleaning devices. Summary of the Invention

[0004] In view of the above, the purpose of this utility model is to provide a mechanically linked photovoltaic water cleaning device to address the problems of the prior art.

[0005] To effectively solve the above problems, this solution proposes a mechanically linked photovoltaic water cleaning device, including a water wheel, a linkage device, and a drive module. There are two water wheels, each with a rotating shaft. A brush is connected to the bottom end of the rotating shaft. The linkage device includes a synchronous wheel mounted on the two rotating shafts and a synchronous belt connecting the two synchronous wheels. The drive module cooperates with the water wheels to provide high-pressure water flow to at least one water wheel.

[0006] Furthermore, a speed reducer is provided between the rotating shaft and the brush.

[0007] Furthermore, the drive module includes a water pump and a three-way diverter, and the water pumped by the water pump is diverted by the three-way diverter to drive two water turbines respectively.

[0008] Furthermore, the drive module includes a water pump that works in conjunction with a water turbine to drive the water turbine to rotate.

[0009] Furthermore, a mounting base is provided, on which a housing is mounted for each waterwheel. An upper shaft seat is provided on the top of the housing, and a lower shaft seat is provided for each upper shaft seat on the mounting base. The rotating shaft is mounted on the upper shaft seat and the lower shaft seat.

[0010] Furthermore, the mounting base plate is provided with a water channel inside, which is used to guide the water flow from one side of the water wheel to the brush area on the other side.

[0011] Furthermore, the bottom surface of the water inlet channel is an inclined surface structure that slopes to one side.

[0012] Furthermore, the inclined structure of the water diversion channel is provided with multiple water drop holes along the water flow direction, and the diameter of the water drop holes gradually increases from upstream to downstream.

[0013] Compared with the prior art, this solution has the following advantages:

[0014] 1. This solution utilizes a synchronous pulley and synchronous belt to stably transmit the rotational power of one water wheel to the other, achieving synchronous rotation of the two brushes. This effectively avoids the problem of inconsistent brush speeds caused by uneven water flow distribution and manufacturing process errors, resolving the issue of inconsistent cleaning intensity across different areas of the photovoltaic panel surface. It can better remove stubborn dirt, prevent wear and tear on the photovoltaic panel due to over-cleaning, and extend the lifespan of the photovoltaic panel while ensuring effective cleaning.

[0015] 2. Regarding the water turbine drive method, in addition to the traditional single-pump split-drive mode, this scheme innovatively proposes a single-pump drive for a single-sided water turbine. In this scheme, all water flow acts on a single-sided water turbine, keeping the water pressure on the turbine constant, and the flow rate is fully used for its drive. Theoretically, the turbine speed can be close to the speed N under full water flow drive. Although the actual speed is slightly lower than N due to energy loss in the transmission, it significantly improves the driving efficiency of the water turbine compared to the traditional split-drive method.

[0016] 3. This solution adds a speed reducer between the rotating shaft and the brush, achieving speed reduction and torque amplification through a gear transmission system. When the water turbine drives the rotating shaft to rotate at high speed, the speed reducer significantly increases the output torque while reducing the rotational speed, giving the brush stronger cleaning power. This effectively tackles stubborn dirt on the photovoltaic panel surface, ensuring a more thorough cleaning effect.

[0017] 4. This solution optimizes the design of the mounting base plate by incorporating a water channel within it. This channel guides the water flow from the water wheel, diverting some of the water to the other side to ensure that both brushes receive water. Furthermore, the water channel is designed with a sloping structure tilted to one side, conforming to fluid mechanics principles. This design better guides the water flow, reduces water resistance, and improves drainage efficiency. Multiple gradually decreasing-degree drainage holes are also located along the slope, ensuring even water distribution during drainage and further enhancing the cleaning effect. Attached Figure Description

[0018] Figures 1 and 2 are schematic diagrams of the structure of this application from different perspectives;

[0019] Figure 3 is a schematic cross-sectional view of the present application;

[0020] Figure 4 is a schematic diagram of the turbine structure of this application;

[0021] Reference numerals: 1. Water wheel; 2. Shaft; 3. Brush; 4. Synchronous pulley; 5. Synchronous belt; 6. Reducer; 7. Mounting base plate; 7a. Water inlet trough; 7b. Inclined structure; 7c. Water outlet; 8. Housing; 9. Upper shaft seat; 10. Lower shaft seat. Detailed Implementation

[0022] Referring to Figures 1 to 4, a mechanically linked photovoltaic water cleaning device is shown. The core components of the device include two water wheels 1, each of which is connected to a brush 3. The rotating shafts 2 of the two water wheels 1 are forced to rotate at the same speed through an innovatively designed linkage device.

[0023] In terms of specific structural design, each waterwheel 1 is equipped with a housing 8, and an upper shaft seat 9 is set on the top of the housing 8. The top of the rotating shaft 2 of the waterwheel 1 is firmly connected to the upper shaft seat 9. In addition, there is an integral mounting base 7, on which the housings 8 of both waterwheels 1 are firmly fixed. At the same time, a lower shaft seat 10 is set on the mounting base 7 corresponding to the position of the rotating shaft 2 of each waterwheel 1. The upper shaft seat 9 and the lower shaft seat 10 cooperate with each other to provide positioning for the rotating shaft 2, ensuring that the waterwheel 1 remains stable during operation. The rotating shaft 2 of the waterwheel 1 extends downward to the bottom of the mounting base 7, and the brush 3 is installed at the bottom of the rotating shaft 2, and the two are connected.

[0024] The linkage device, a key innovation of this cleaning device, consists of a synchronous wheel 4 on a rotating shaft 2 and a synchronous belt 5 connecting the two synchronous wheels 4. During operation, the synchronous wheel 4 and the synchronous belt 5 work together to stably transmit the rotational power of one water wheel 1 to the other water wheel 1, thereby achieving synchronous rotation of the two brushes 3 and effectively avoiding differences in cleaning effect caused by uneven water flow.

[0025] This device offers flexible options for driving the water turbine 1. Traditional designs typically use a single pump with a three-way flow divider to drive two water turbines 1. If the pump provides a water pressure of P and a flow rate of Q, after the flow divider, the water pressure on each side of the water turbine 1 drops to P / 2, and the flow rate becomes Q / 2. Due to the halved water pressure and flow rate, assuming the rotational speed of a single water turbine 1 under full flow drive is N, the rotational speed of each side of the water turbine 1 after the flow divider is approximately N / 2, which undoubtedly reduces the driving efficiency of the water turbine 1. In this device, in addition to using the existing single-pump flow divider drive mode, a novel scheme of driving a single side of the water turbine 1 with a single pump is proposed. Under this scheme, all the water flow acts on a single side of the water turbine 1, maintaining the water pressure on that water turbine 1 at P, and the flow rate Q is also fully used for its drive. Theoretically, the rotational speed of the water turbine 1 can be increased to close to N. It should be noted that due to unavoidable energy losses during the transmission process, such as frictional losses between the synchronous pulley 4 and the synchronous belt 5, mechanical losses between the rotating shaft 2 and the bearing seat, and frictional resistance between the brush 3 and the photovoltaic panel, the actual rotational speed will be slightly lower than N. However, compared with the traditional split-drive method, the drive efficiency is still significantly improved. This drive method not only achieves centralized and efficient utilization of energy, but also simplifies the water flow distribution system, eliminating the need for complex split-drive structures, effectively reducing water pressure loss, and further improving the overall performance of the device.

[0026] To enhance the cleaning ability of brush 3, a reducer 6 is added between the rotating shaft 2 and brush 3. The reducer 6 achieves speed reduction and torque amplification through a gear transmission system. When the water turbine 1 drives the rotating shaft 2 to rotate at high speed, the reducer 6 reduces the rotational speed while significantly increasing the output torque, giving brush 3 stronger cleaning power. This design effectively tackles stubborn dirt on the photovoltaic panel surface, ensuring a more thorough cleaning effect.

[0027] Considering that when a single water pump drives a single-sided water impeller 1, the water flow only covers one side of the brush 3, the mounting base 7 is optimized to achieve reasonable water distribution and efficient utilization. A water channel 7a is installed inside the mounting base 7 to guide the water flowing down from the water impeller 1, diverting some of the water to the other side before flowing down again, thus ensuring that both sides of the brush 3 receive water. Furthermore, the water channel 7a is designed as a sloping structure 7b inclined to one side. This sloping design conforms to fluid mechanics principles, better guiding the water flow, reducing water resistance, and improving diversion efficiency. Simultaneously, multiple drainage holes 7c are arranged downwards along the sloping surface, with the hole diameter increasing from small to large. This design primarily considers that the water flow gradually decreases as it flows downwards. If drainage holes 7c of uniform diameter are used, the flowing water will inevitably become smaller and smaller. This gradually increasing drainage hole 7c design allows the water flow to be evenly dispersed during the diversion process, thereby further improving the cleaning effect.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanically linked photovoltaic water cleaning device, characterized in that, It includes a water wheel (1), a linkage device and a drive module. There are two water wheels (1), each water wheel (1) is provided with a rotating shaft (2), and a brush (3) is connected to the bottom end of the rotating shaft (2). The linkage device includes a synchronous wheel (4) set on the two rotating shafts (2) and a synchronous belt (5) connecting the two synchronous wheels (4). The drive module cooperates with the water wheel (1) to provide high-pressure water flow to at least one water wheel (1).

2. The mechanically linked photovoltaic water cleaning device according to claim 1, characterized in that, A speed reducer (6) is provided between the rotating shaft (2) and the brush (3).

3. The mechanically linked photovoltaic water cleaning device according to claim 1, characterized in that, The drive module includes a water pump and a three-way diverter. The water pumped by the water pump is diverted by the three-way diverter and then drives two water turbines (1).

4. The mechanically linked photovoltaic water cleaning device according to claim 1, characterized in that, The drive module includes a water pump that works in conjunction with a water wheel (1) to drive the water wheel (1) to rotate.

5. The mechanically linked photovoltaic water cleaning device according to claim 4, characterized in that, A mounting base plate (7) is provided, and a housing (8) is installed on the mounting base plate (7) corresponding to each waterwheel (1). An upper shaft seat (9) is provided on the top of the housing (8), and a lower shaft seat (10) is provided on the mounting base plate (7) corresponding to each upper shaft seat (9). The rotating shaft (2) is installed on the upper shaft seat (9) and the lower shaft seat (10).

6. A mechanically linked photovoltaic water cleaning device as claimed in claim 5, wherein, The mounting base plate (7) is provided with a water channel (7a) inside, which is used to guide the water flowing from the water wheel (1) on one side to the brush (3) area on the other side.

7. The mechanically linked photovoltaic water cleaning device according to claim 6, characterized in that, The bottom surface of the water inlet channel (7a) is an inclined structure (7b) that slopes to one side.

8. The mechanically linked photovoltaic water cleaning device according to claim 7, characterized in that, The inclined structure (7b) of the water inlet channel (7a) is provided with multiple water drop holes (7c) along the water flow direction, and the diameter of the water drop holes (7c) gradually increases from upstream to downstream.

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