WO2018010508A1

WO2018010508A1 - Cleaning device and photovoltaic array

Info

Publication number: WO2018010508A1
Application number: PCT/CN2017/087663
Authority: WO
Inventors: 吴伟功; 庞云亭; 吴桢涛
Original assignee: 北京天诚同创电气有限公司
Priority date: 2016-07-14
Filing date: 2017-06-09
Publication date: 2018-01-18
Also published as: CN107617616B; CN107617616A

Abstract

A cleaning device and a photovoltaic array. The cleaning device comprises: a traveling mechanism (4), comprising a base (41) and a traveling part (42) which is provided on the base (41) and drives the base (41) to move on a surface to be cleaned; and a cleaning mechanism (6), which is provided on the base (41) and comprises a cleaning part (61) and an adjusting part (62) for driving the cleaning part (61) to conduct reciprocating movement along an adjustment direction. The cleaning device can achieve a good cleaning effect.

Description

Cleaning device and photovoltaic array

The present application claims priority to Chinese Patent Application No. 20161055673, filed on Jun.

Technical field

The invention relates to the field of cleaning equipment, and in particular to a cleaning device and a photovoltaic array.

Background technique

A photovoltaic power station is a power station that uses photovoltaic panels to generate electricity. Generally, a photovoltaic power plant includes a plurality of photovoltaic arrays, each of which includes a plurality of photovoltaic panel groups, and each of the photovoltaic panel groups includes a plurality of photovoltaic panels. There may be surface unevenness between adjacent photovoltaic panel groups, causing a problem between the photovoltaic panel groups.

For photovoltaic power plants, power generation efficiency is a key indicator affecting their actual revenue. With the continuous expansion of the scale of domestic photovoltaic power plants and the strict control of power generation costs, people's requirements for power generation efficiency are becoming more and more demanding. In order to improve power generation efficiency, corresponding technical improvements and innovations have been made from the application product layer and the operation and maintenance layer.

In terms of operation and maintenance, the degree of cleanliness of the panels in the photovoltaic power plant has a huge impact on the power generation efficiency and the life of the photovoltaic modules. According to the relevant literature, the dust accumulation of 4g/m ² makes the photovoltaic module power output efficiency drop by 60%. What's more, large opaque contaminants such as bird droppings, leaves, and animal climbing remnants can cause hot spot effects on photovoltaic modules, causing high temperature localization of photovoltaic modules until they are burned and scrapped.

Therefore, it is an urgent need to clean the surface of the photovoltaic module in time to ensure power generation efficiency. The prior art device capable of cleaning a photovoltaic module has the following problems: the brush shaft of the cleaning device is fixed in position, and the traveling mechanism uses a belt drive, a chain drive or a separate roller to transmit traction. Due to the installation error between the arrays of photovoltaic panels during the construction of the photovoltaic power plant, large vertical drop and horizontal drop between the arrays occur. The prior art is subject to structural limitations that can cause mechanical jamming when passing through excessive rails between the arrays, failing to complete the cleaning task.

In addition, the cleaning method of the cleaning device is complicated, for example, a cleaning device that uses a direct cable power supply method will generate a large amount of wiring installation costs. The use of utility power to supply rechargeable batteries is subject to frequent demolition of batteries, large workload, and difficulty in taking power at the power station. Such Technology has increased the cost of construction and construction of photovoltaic power plants, and it has also increased the complexity of photovoltaic power plant construction and operation and maintenance management.

Summary of the invention

The invention provides a cleaning device and a photovoltaic array to solve the problem of low cleaning efficiency of the photovoltaic panel.

In order to achieve the above object, an embodiment of the present invention provides a cleaning device including: a traveling mechanism including a base and a walking portion disposed on the base and driving the base to move along the cleaning surface; a cleaning mechanism, cleaning The mechanism is disposed on the base and includes a cleaning portion and an adjustment portion that drives the cleaning portion to reciprocate in the adjustment direction.

Further, the adjusting portion includes: an adjusting driving member, the adjusting driving member is fixedly connected with the cleaning portion; adjusting the transmission assembly, the adjusting transmission assembly is connected between the adjusting driving member and the base, and the adjusting driving member is driven by the adjusting driving member Reciprocatingly moves relative to the base in the adjustment direction.

Further, the adjustment transmission assembly includes: an adjustment gear disposed on the adjustment drive member and rotating with the output shaft of the adjustment drive member; adjusting the rack, adjusting the rack on the base, and adjusting the extending direction of the rack To adjust the direction.

Further, the cleaning portion includes: a cleaning mounting seat, the cleaning mounting seat is reciprocally disposed on the base in the adjusting direction, the adjusting driving member is fixedly connected to the cleaning mounting seat; the cleaning driving member is disposed, and the cleaning driving member is disposed in the cleaning mounting seat The cleaning member is disposed on the base and connected to the cleaning driving member and is driven by the cleaning driving member.

Further, the cleaning member is a spiral roller brush, and the cleaning device further comprises an anti-dusting structure disposed on the base and located on both sides of the spiral roller brush.

Further, the adjustment direction has a first angle with the surface to be cleaned, and the first angle is 90°.

Further, the walking portion comprises: an active walking unit, the active walking unit is disposed on the base, and the cleaning surface is required to be attached; the auxiliary walking unit, the auxiliary walking unit is disposed on the base, and the auxiliary surface is engaged, the auxiliary surface It has a second angle with the surface to be cleaned.

Further, the active walking unit includes two active walking components, and two active running components are disposed on opposite sides of the base in one-to-one correspondence, each active running component includes an active traveling wheel; and the auxiliary walking unit includes two auxiliary walking components. Two auxiliary walking components are arranged in one-to-one correspondence with two active walking components, each auxiliary walking component includes an auxiliary walking wheel, and two auxiliary The center distance between the walking wheels is equal to the center distance between the two active wheels.

Further, the active walking assembly further includes: an active traveling driving member, the active traveling driving member is disposed on the base, is connected with the active traveling wheel, and drives the active traveling wheel to rotate; the walking position detector, the walking position detector is disposed on the active walking The driving member is controlled to control the active running drive to work or stop according to the detected position.

Further, the cleaning device further includes a panel detector, the panel detector being disposed on the base and detecting hot spots and/or cracks on the panel being cleaned.

Further, the cleaning device further includes a hood, the hood is disposed outside the pedestal, and the hood is provided with a power panel.

Further, the cleaning device further includes a placement frame disposed at the first end of the object to be cleaned and a cleaning frame disposed at a second end of the object to be cleaned opposite the first end, the cleaning frame being provided with a cleaning brush.

According to another aspect of the present invention, a photovoltaic array is provided. The photovoltaic array includes at least two photovoltaic panel groups, and a connecting rail is disposed between two adjacent photovoltaic panel groups, and the above cleaning device is disposed in one of the photovoltaic cells. On the board set.

The traveling mechanism of the cleaning device of the embodiment of the present invention can drive the cleaning device to automatically move, the cleaning portion of the cleaning mechanism can realize the automatic cleaning of the cleaning surface during the movement, and the adjusting portion can adjust the position of the cleaning portion, so that the cleaning portion is always Contact with the surface to be cleaned to achieve no dead zone cleaning, ensuring cleaning efficiency and cleaning results.

DRAWINGS

1 is a schematic perspective view showing a first type of photovoltaic array having a cleaning device according to an embodiment of the present invention;

2 is a top plan view showing a first photovoltaic array having a cleaning device according to an embodiment of the present invention;

3 is a schematic perspective view showing a second type of photovoltaic array having a cleaning device according to an embodiment of the present invention;

Figure 4 is a front elevational, partial cross-sectional view of the cleaning device of the embodiment of the present invention;

FIG. 5 is a schematic perspective structural view of a traveling mechanism of a cleaning device according to an embodiment of the present invention; FIG.

Figure 6 is a partial enlarged view of a portion B in Figure 5;

Figure 7 is a top plan view showing the traveling mechanism of the cleaning device according to the embodiment of the present invention;

Figure 8 is a cross-sectional view taken along line A-A of Figure 7;

Figure 9 is a perspective view showing the cleaning mechanism of the cleaning device of the embodiment of the present invention;

Figure 10 is an enlarged view of a portion A in Figure 9;

Figure 11 is a partial cross-sectional structural view showing a cleaning mechanism of a cleaning device according to an embodiment of the present invention;

Figure 12 is a partial cross-sectional perspective view showing the cleaning mechanism of the cleaning device of the embodiment of the present invention;

Figure 13 is a top plan view showing the cleaning mechanism of the cleaning device according to the embodiment of the present invention;

Figure 14 is a perspective view showing the structure of a cleaning frame of a cleaning device according to an embodiment of the present invention.

detailed description

The cleaning device and the photovoltaic array of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 3, the cleaning device provided in this embodiment is applied to cleaning a photovoltaic panel, and is particularly suitable for automatically cleaning the photovoltaic array 1 of a plurality of photovoltaic panel assemblies 11. In other embodiments, the cleaning device can also achieve automatic cleaning of other relatively flat surfaces.

4 to 13, in accordance with an embodiment of the present invention, the cleaning device includes a running mechanism 4 and a cleaning mechanism 6. The traveling mechanism 4 includes a base 41 and a running portion 42 that is disposed on the base 41 and that drives the base 41 to move along the cleaning surface. The base 41 is used to carry and mount other components. The walking portion 42 is used to drive the base 41 and the components thereon to move for automatic walking and cleaning. The cleaning mechanism 6 is disposed on the base 41 and includes a cleaning portion 61 and an adjustment portion 62 that drives the cleaning portion 61 to reciprocate in the adjustment direction. The adjusting portion 62 is used for adjusting the position of the cleaning portion 61 to ensure that the cleaning portion 61 can always be in contact with the surface to be cleaned, thereby achieving no dead zone cleaning, thereby ensuring the cleaning effect, and avoiding the problem of requiring repeated cleaning caused by incomplete cleaning. Improve cleaning efficiency.

It should be noted that the adjustment direction has a first angle with the surface to be cleaned. The cleaning portion 61 is used for cleaning the surface to be cleaned (the surface to be cleaned is the surface of the photovoltaic panel group 11 when applied to the cleaning photovoltaic array 1), and the first angle between the adjustment direction and the surface to be cleaned means that the adjustment direction is not Clean the surface in parallel. In this embodiment, the first included angle is 90°. In other embodiments, An angle can be any other acute or obtuse angle.

As shown in FIGS. 4 and 5, the base 41 of the traveling mechanism 4 has a rectangular frame structure which is formed by splicing the rods. Specifically, the base 41 includes two main beams 411 and two connecting beams 412 connected between the two main beams 411. The main beam 411 and the connecting beam 412 may be made of an aluminum profile or the like, and the overall weight of the cleaning device is minimized while ensuring sufficient structural strength. This on the one hand reduces production and transportation costs and on the other hand avoids over-stressing and crushing of cleaned equipment.

In other embodiments, the base 41 may be a plate, a block, or other structure as long as the load bearing function can be achieved. The base 41 can also be a combination of component welding and fasteners. This can reduce procurement costs and manufacturing costs.

In addition, in order to facilitate the handling of the cleaning device, a handle 413 is provided on both connecting beams 412. The handle 413 provides a space for the worker to hold, facilitating the handling of the cleaning device by the worker. Of course, it is also possible to provide a structure for providing a hand-held space that can replace the handle 413 on the connecting beam 412.

The running portion 42 is used to drive the cleaning device to move smoothly and reliably on the cleaning member. The walking portion 42 includes an active walking unit and an auxiliary walking unit. The active walking unit is disposed on the base 41 and is attached to the surface to be cleaned. The auxiliary walking unit is disposed on the base 41, and the abutting auxiliary surface travels, and the auxiliary surface and the surface to be cleaned have a second angle. Here, the second angle between the auxiliary surface and the surface to be cleaned means that the auxiliary surface is not parallel to the surface to be cleaned. Specifically, for the photovoltaic panel group 11, the upward facing surface is the surface to be cleaned, and the auxiliary surface refers to the side perpendicular to the surface to be cleaned.

When the photovoltaic panel group 11 is cleaned, the active walking unit is attached to the required cleaning surface of the photovoltaic panel group 11; the auxiliary walking unit is attached to the side wall surface of the photovoltaic panel group 11 for walking. The second angle between the side wall surface and the surface to be cleaned (the photosensitive surface of the photovoltaic panel of photovoltaic panel stack 11) is typically 90°. Of course, in other embodiments, for different pieces to be cleaned, the angle between the auxiliary surface and the surface to be cleaned may be any other acute or obtuse angle.

In addition, in order to ensure smooth walking and a certain ability to over-slope, the active walking unit and the auxiliary walking unit of the cleaning device are two, and the two active walking units are symmetric about the longitudinal line in the longitudinal direction, and the two auxiliary walking units are also related to the length. The vertical line of the direction is symmetrical. Relatively independent The two active walking units are respectively disposed at two ends of the base 41 in the longitudinal direction, and a four-wheel drive mode is formed on the structure to make the climbing device more capable of climbing.

The vertical line in the longitudinal direction refers to a line perpendicular to the main beam 411 and parallel to the running surface.

Of course, the active walking unit in the lower part when the running mechanism 4 is used may not be provided with the active traveling driving member, which can reduce the number of motors used and reduce the cost, but the climbing ability is correspondingly reduced, which can be applied to the horizontal slope or the vertical slope. Smaller working conditions.

The active walking unit includes two active walking components, and the two active running components are disposed on opposite sides of the base 41 in a one-to-one correspondence. Specifically, the two active running components are disposed on the main beam 411 of the base 41 in a one-to-one correspondence.

Specifically, the active walking assembly includes an active running wheel 421, an active running drive 422, and a walking position detector 423.

The active travel drive member 422 is disposed on the base 41, coupled to the active running wheel 421, and drives the active traveling wheel 421 to rotate. The active travel drive 422 includes a motor, a drive shaft, and a bearing housing. The motor is connected to the driving wheel 421 through the transmission shaft and the bearing housing, and realizes the rotation of the driving roller 421. The bearing housing is fixed to the driving wheel mounting beam by a fastener, and the driving wheel mounting beam is fixed to the main beam 411 of the base 41.

The travel position detector 423 is disposed on the bearing housing of the active travel drive member 422 through a mounting plate. In the present embodiment, the travel position detector 423 is a proximity switch that detects the distance between the cleaning device and the stop (disposed at the edge of the photovoltaic array and used to mark the edge of the photovoltaic array). The cleaning device further includes a control box 10 in which the controller in the control box 10 receives the detected position transmitted by the walking position detector 423 and controls the active travel drive member 422 to operate or stop according to the detected position. For example, under normal circumstances, the travel position detector 423 is in an off state, and the control box 10 controls the motor of the active travel drive 422 to operate normally, and the cleaning device moves on the photovoltaic array. When the walking position detector 423 detects the stop, it is proved that walking to the edge of the photovoltaic array, the control box 10 controls the motor of the active running drive 422 to stop or perform a reciprocating motion to stop or reverse the cleaning device.

The auxiliary walking unit comprises two auxiliary walking components, and the two auxiliary walking components are arranged in one-to-one correspondence with the two active walking components.

Specifically, the auxiliary walking assembly includes an auxiliary traveling wheel 429, a bearing housing, a mounting shaft, and the like. Its The mounting beam is fixed to the mounting beam by a fastener, and the mounting beam is fixed to the main beam 411.

In order to ensure the climbing ability, prevent jamming at the gap, and ensure cleaning efficiency, the center distance between the two auxiliary traveling wheels 429 is equal to the center distance between the two driving wheels 421. In other words, the axes of the active running wheel 421 and the auxiliary traveling wheel 429 are on the same plane and intersect (in this embodiment, the angle between the two may be 90°), so that when walking, the active traveling wheel 421 And the auxiliary walking wheel 429 is always at the same time with the walking surface and the auxiliary surface during the climbing process (the usual climbing is due to the large spacing between the two photovoltaic panel groups 11 and the surface is not flush, thus requiring two photovoltaic panels An excessive track for connection is provided between the groups 11, and both the active traveling wheel 421 and the auxiliary traveling wheel 429 are in contact with the excessive track contact when climbing. So that no matter how the position of the center of gravity changes during the climbing process, good balance of motion can be obtained when going uphill and downhill across a large vertical slope, and the ability to cross the slope can be effectively enhanced to prevent the traction or partial wheel The group slipped and suspended, causing the climbing to fail.

Referring to Figures 1 to 4 and 9, the cleaning mechanism 6 is disposed on the base 41, and the cleaning mechanism 6 cleans the surface to be cleaned during the movement of the base 41.

Specifically, the base 41 further includes two side plates 414 that are fixed to the main beam 411. The side panel 414 has a distance from the closest connecting beam 412 that can accommodate other components. The cleaning portion 61 is fixed by the side plate 414.

Referring to FIGS. 9 to 11, the cleaning portion 61 includes a cleaning mount 612, a cleaning driving member 613, and a cleaning member 611.

The cleaning mount 612 is disposed on one of the side plates 414 and is movable up and down along the side plates 414. In order to be able to guide the movement of the cleaning mount 612, the side rails 414 are provided with slide rails 415. As shown in FIG. 10, the side surfaces of the slide rail 415 are provided with grooves, and the cleaning mount 612 is provided with a projection that cooperates with the recess, so that the cleaning mount 612 slides up and down on the slide rail 415.

The cleaning member 611 is disposed on the side plate 414 of the base 41 by the cleaning mount 612. The cleaning drive member 613 is mounted on the cleaning mount 612 and is coupled to the cleaning member 611 through the cleaning mount 612.

Specifically, as shown in FIG. 11, the cleaning drive member 613 is a motor whose output shaft is coupled to a bearing housing provided on the cleaning mount 612. A drive shaft is coupled to the output shaft of the bearing housing, the drive shaft passes through the cleaning mount 612, and a bearing is disposed between the drive shaft and the cleaning mount 612. It is ensured that the drive shaft can be rotated relative to the cleaning mount 612. The cleaning member 611 is a spiral roller brush, and the rotating shaft of the spiral roller brush is sleeved on the transmission shaft and connected by a pin. In this way, the spiral roller brush can be moved in accordance with the set rotation direction and rotation speed under the driving of the motor to achieve cleaning.

Suitably, a mating structure is provided at one end of the spiral roller brush away from the cleaning drive member 613 to mount the other end of the spiral roller brush to the other side plate 414. The mating structure includes an auxiliary base 631 and an auxiliary shaft 632. A slide rail 415 is also disposed on the side plate 414 where the auxiliary base 631 is located. The auxiliary base 631 is provided with a structure that cooperates with the slide rail 415 to ensure that the auxiliary base 631 can slide up and down along the slide rail 415. The auxiliary shaft 632 is mounted on the auxiliary base 631 by bearings, and the other end of the auxiliary shaft 632 is connected to the other end of the spiral roller by a pin.

When the output shaft of the cleaning drive member 613 rotates, the connecting shaft 614 is rotated by the bearing housing, thereby driving the spiral roller brush to rotate, and the auxiliary shaft 632 connected to the spiral roller brush is also rotated.

Referring to Figures 11 and 12 in combination, the adjustment portion 62 includes an adjustment drive member 621 and an adjustment drive assembly.

The adjustment drive member 621 is fixedly coupled to the cleaning mount 612 of the cleaning portion 61 for providing motive power. The adjusting transmission component is connected between the adjusting driving member 621 and the base 41, and the adjusting driving member 621 is reciprocally moved relative to the base 41 in the adjusting direction under the driving of the adjusting driving member 621, thereby being fixedly connected with the adjusting driving member 621. The cleaning unit 61 moves. The adjustment transmission assembly is used for transmission, and the movement of the adjustment driving member 621 relative to the side plate 414 of the base 41 is realized, thereby realizing the movement of the cleaning portion 61 relative to the base 41.

It should be noted that, in the embodiment, the adjustment direction is perpendicular to the walking direction of the cleaning device. That is, when the cleaning device is placed horizontally, the adjustment direction is the vertical direction.

In the present embodiment, as shown in FIGS. 10 to 12, the adjustment driving member 621 is a stepping motor. In other embodiments, the adjustment driving member 621 may be a structure such as a hydraulic telescopic cylinder or a pneumatic telescopic cylinder, and the motor is fixedly mounted on the cleaning mount 612. The adjustment drive assembly includes an adjustment gear 623 and an adjustment rack 622. The adjustment gear 623 is disposed on the adjustment driving member 621 and rotates with the output shaft of the adjustment driving member 621. The adjustment rack 622 is disposed on the base 41, and the extending direction of the adjustment rack 622 is an adjustment direction.

The adjustment gear 623 is rotated by the adjustment driving member 621. Since the adjustment rack 622 is disposed on the base 41, the adjustment gear 623 moves on the adjustment rack 622, thereby driving The adjustment driving member 621, the cleaning mount 612 and the components thereon are moved together to realize the position adjustment of the spiral roller brush to adapt to the straight walking cleaning and the over-slope cleaning, and finally complete the cleaning work of the photovoltaic array.

In other embodiments, the adjustment drive assembly can be other configurations that enable rotation to be converted to linear motion.

Preferably, in order to enable accurate adjustment, the spiral roller brush is always in contact with the surface to be cleaned, and a proximity switch for detection is provided on the side plate. When the spiral roller moves in the adjustment direction, it passes and triggers the detection proximity switch, thereby determining the initial position of the spiral roller brush, and then determining the accuracy of the spiral roller brush in real time according to the number of movement steps and the direction of the adjustment driving member 621. The position is further determined whether the distance between the surface to be cleaned is a predetermined distance, and if it is not within the predetermined distance, the position of the spiral brush can be adjusted as needed.

Of course, in other embodiments, the position of the spiral roller brush can be determined and adjusted in other ways. For example, the distance between the spiral roller brush and the surface to be cleaned is directly detected by the distance sensor, and then adjusted.

Preferably, in order to avoid secondary pollution and to ensure a cleaning effect, the cleaning device may further include a dust-proof structure disposed on the base 41 and located on both sides of the spiral roller brush. As shown in FIG. 5, the dust prevention structure includes a dust shield 641 and a riser brush 642. The dust shield 641 is disposed above the riser brush 642, and both are fixedly disposed on the main beam 411.

By arranging the riser brush 642 and the dust shield 641 on the two main beams 411 of the base 41, a dust-conducting passage is formed in the structure, and the vertical plate brush 642 also pre-treats the dust. This structure separates the spiral roller brush from the traveling mechanism, prevents a large amount of dust formed by the cleaning from flowing to the motor, effectively protects the motor, and improves the service life of the motor. At the same time, in cooperation with the spiral roller brush, a dust guiding passage is formed to allow dust to flow out from the lower portion of the cleaning device.

The cleaning mechanism 6 realizes the movement of two degrees of freedom (reciprocal movement in the adjustment direction and rotation around the rotation axis) of the spiral rotating brush, and the cleaning driving member 613 can drive the rotation of the spiral rotating brush, and can realize the adjustment of the rotation speed and the rotation direction, and complete Routine cleaning of contaminants in the same plane.

Secondly, by collecting the distance set on the side plate 414 or the feedback signal of the position sensor, the upper and lower positions of the spiral roller brush can be controlled, which can avoid the large vertical slope formed by the excessive track between the photovoltaic arrays, avoid mechanical failure, and can also avoid mechanical failure. Make spiral roller core and photovoltaic panel The surface of the group 11 is always kept at a certain distance to achieve over-slope cleaning.

Preferably, the cleaning device further includes a panel detector 7, the panel detector 7 being disposed on the base 41 and detecting hot spots and/or cracks on the panel being cleaned. As shown in FIG. 5, a plurality of panel detectors 7 are sequentially disposed along the longitudinal direction of the main beam 411 to perform quality assessment of the photovoltaic panels in the photovoltaic panel stack 11 in the photovoltaic array while cleaning is performed. The panel detector 7 can detect hot spots and/or cracks on the photovoltaic panel, thereby enabling quality assessment of the photovoltaic panels. The panel detector 7 can be a camera that takes an image of the surface of the photovoltaic panel and determines if there is a hot spot or crack in the surface of the photovoltaic panel by image analysis software.

The panel detector 7 can also be other sensors capable of detecting hot spots or cracks alone.

As shown in FIG. 4, the cleaning device further includes a hood 3 that is disposed outside the base 41 for protecting other components of the cleaning device from rain, snow, dust, and the like from damaging the components inside the hood 3.

Preferably, in order to reduce the cable line, reduce the difficulty of power taking, and improve the applicability, the hood 3 is provided with a power panel 31, which is a photovoltaic panel for generating power.

The hood 3 firstly protects the components in the overall equipment, enabling the equipment to adapt to a more harsh working environment and prolong its service life. Next, the power hood 31 is mounted on the hood 3, and the power battery panel 31 is connected to the control box 10 to provide energy input to the cleaning device.

A driver, a controller, an energy storage battery, and the like of each motor are disposed in the control box 10. The control box 10 is a power management function unit of the cleaning device, and the energy storage battery performs energy storage to achieve self-sufficiency of energy. The control box 10 is disposed on the base 41 and on one side of the hood 3. The control box 10 provides power and action decision-making schemes for the mechanical parts, and realizes the adjustment of the rotational speed and steering of each motor to realize the actions of stopping and reciprocating, thereby completing the functions of reciprocating cleaning, over-slope cleaning and fault shutdown. At the same time, the control box 10 also has the functions of cleaning time and cleaning times setting, cleaning judgment, fault alarm, power monitoring, insufficient warning, wireless communication, remote control, hot spot and crack detection, alarm and the like.

As shown in FIG. 1 and FIG. 14, the cleaning device further includes a placement frame 21 disposed at a first end of the object to be cleaned and a cleaning frame 22 disposed at a second end of the object to be cleaned opposite the first end, on the cleaning frame 22 A cleaning brush 222 is provided.

The placement frame 21 is formed by fasteners such as a stringer, a bracket beam, and a placement stop 211. When the cleaning device moves onto the placement frame 21, the walking position detector 423 detects the placement stop plate 211, sends a signal to the control box 10, and the control box 10 controls the active travel drive member 422 to stop rotating according to the signal, thereby realizing the edge finding. Stop function.

The cleaning frame 22 is formed by a cleaning brush 222, a mounting groove, a cleaning stop plate 221, and a plate holder mounting fastener. The cleaning brush 222 is a plate brush which is mounted on the plate brush mounting frame through a mounting groove, and the relative positions of the mounting groove and the plate brush mounting frame are adjustable to accommodate installation errors. The cleaning stop plate 221 is mounted on the plate brush mount. The cleaning brush 222 can be a non-driven cleaning method, that is, the cleaning is performed by the frictional force when the power battery board 31 is in contact with the cleaning brush 222, and the driving member that drives the cleaning brush 222 can be provided to realize the active cleaning, so that the cleaning capability is achieved. Enhanced, but will increase the cost of power and maintenance complexity.

When the walking position detector 423 detects the cleaning stop 221, a control signal is fed back to the control box 10, thereby implementing the edge finding stop function of the cleaning device, or the cleaning device is moved in the reverse direction. When the cleaning device enters the cleaning frame 22, the plate brush can be brought into contact with the power panel 31 on the cleaning device with a suitable force to achieve an optimum cleaning effect, ensuring that the cleaning device has sufficient energy.

As shown in FIG. 3, according to another aspect of the present invention, a photovoltaic array is further provided. The photovoltaic array includes at least two photovoltaic panel groups 11 , and a connecting rail 12 is disposed between two adjacent photovoltaic panel groups 11 . The cleaning device described above is disposed on one of the photovoltaic panel assemblies 11 and is capable of walking on the photovoltaic array to effect cleaning of the photovoltaic panel assembly 11.

The process of cleaning a photovoltaic array using the cleaning device is as follows:

In the implementation, the photovoltaic array 1 is formed by connecting the photovoltaic panels 11 adjacent to each other with a span greater than a certain value (the span can be determined as needed). The mounting frame 21 and the cleaning frame 22 are respectively disposed on both sides of the connected photovoltaic array 1, and the cleaning device is stuck on the cleaning frame 22.

The cleaning instruction is initiated by the control box 10, and under the action of the active running drive member 422 in the traveling mechanism 4, it can reciprocally move laterally at a controllable speed on the photovoltaic array, so that the cleaning device passes through the assembly on the photovoltaic panel group 11. Gap (ie, the gap between two adjacent photovoltaic panels within a photovoltaic panel stack 11) across the inter-component slope (ie, adjacent in the PV array) The slope between the two photovoltaic panel groups 11). The cleaning mechanism 6 can perform a full-time cleaning of the surface of the photovoltaic array by performing a clockwise or counterclockwise rotational motion at a controlled speed while the cleaning device is moving. During the cleaning process, the dust swept by the spiral brush is transported to the lower part of the photovoltaic panel in the photovoltaic panel group 11 through the passage formed by the vertical plate brush 642 and the dust shield 641, and is concentrated and dropped, and is not in the photovoltaic panel group 11 Photovoltaic panels cause secondary pollution.

Meanwhile, each time the cleaning device enters the cleaning frame 22, the plate brush cleans the power battery panel 31 mounted on the cleaning device once, thereby achieving self-cleaning, keeping the surface of the power battery panel 31 on the hood 3 clean, thereby ensuring itself. The ability to generate energy for storage is suitable for cleaning and use.

When the walking position detector 423 on both sides of the traveling mechanism 4 detects the running to the edge, the signal is transmitted to the control box 10, and is judged by a preset control logic to perform a reciprocating motion, a plurality of cleaning or a shutdown.

The control box 10 is equipped with a rechargeable battery whose energy is supplied from the power panel 31 on the hood 3 so that the cleaning device can be charged during the day and work at night. At the same time, the control box 10 also has the functions of cleaning time and cleaning times setting, cleaning judgment, fault alarm, fault shutdown, power monitoring, insufficient warning, wireless communication, remote control, hot spot and crack detection, alarm and the like.

The connecting rail 12 between the photovoltaic panel groups 11 is configured according to the actual measured data of the specific project, and adopts a flexible connection with the photovoltaic panel, and does not cause the track and the photovoltaic panel due to changes in climate and temperature. The resulting stress damages the photovoltaic panel.

When the cleaning device is near the cleaning stop 221 or the stop 211, then the edge of the photovoltaic array is considered to have arrived, and the control box 10 controls the cleaning device to stop or reverse.

The cleaning device has strong environmental adaptability in a photovoltaic power plant or a distributed photovoltaic power plant. The running mechanism 4 has the ability of straight walking and climbing movement, and the spiral roller brush of the cleaning mechanism 6 is always in contact with the surface of the photovoltaic panel, and can complete the dead zone cleaning.

The energy storage battery and the power battery panel 31 mounted on the cleaning device can realize power generation and storage functions. This effectively solves the problem of power taking of the equipment and reduces the cost of construction and maintenance. At the same time, it can realize daytime charging and nighttime cleaning, which does not affect the daytime power generation of the power station, and can ensure the clean power of the power station.

The cleaning frame 22 disposed at the end of the photovoltaic array can clean the power panel 31 on the cleaning device to ensure that the power panel 31 permanently and efficiently charges the energy storage battery. The cleaning device It can achieve high efficiency, low strength, and no one or no automatic cleaning.

The cleaning device adopts a modular design concept, which is more convenient for processing and assembly, and is also easy to repair and replace.

The cleaning device of the present invention has the following effects:

Spiral roller brush linear motion design. After receiving the control command, the spiral roller brush adjusts the position of the spiral roller brush in a linear motion manner, so that the bristles are always in contact with the surface to be cleaned of the photovoltaic array, so that the cleaning device can adapt to the conditions of plane cleaning and over-slope cleaning, and achieve complete cleaning.

A vertical plate brush and a dust-proof plate are arranged on both sides of the traveling mechanism, and the two together form a dust guiding channel, which functions as dust shielding, collecting and guiding, so that the dust raised by the spiral roller brush does not pollute the photovoltaic panel group twice. . At the same time, the design separates the spiral roller brush from the motor of the running mechanism, effectively protecting the motor of the traveling mechanism from the dust raised by the spiral roller brush.

The walking wheel in the traveling mechanism adopts four-wheel drive mode, so that it can adapt to the working condition of a large horizontal slope or a vertical slope. At the same time, the auxiliary walking wheel is coplanar with the axis of the active traveling wheel, so that when the running mechanism is over the slope, the active walking wheel and the auxiliary walking wheel can simultaneously act with the connecting rail to prevent the individual walking wheels from going empty or generating motion interference.

The hot spot and the crack detection sensor are arranged on the pedestal, so that the cleaning robot completes the evaluation of the quality of the panel while completing the cleaning work, and can be used as an automatic inspection tool to reduce the inspection workload of the power station staff.

A photovoltaic panel is integrated on the hood, and the photovoltaic panel absorbs solar radiation to generate electric energy, and the battery in the control box stores the electric energy, so that the device does not need to be arranged with cables or frequently replaced the battery, thereby achieving zero cost of maintenance and simple maintenance. Effect. At the same time, the design can also realize daytime charging of the cleaning device and work at night, which does not affect the power generation of the power station and ensures the cleanness of the power station.

A self-cleaning cleaning brush is arranged on the cleaning frame. When the cleaning device enters and exits the cleaning frame, the plate brush on the cleaning device cleans the surface of the photovoltaic panel on the hood to ensure that the panel can effectively generate electricity for charging. The battery provides reliable power.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, this The scope of the invention should be determined by the scope of the appended claims.

Claims

A cleaning device, comprising:

a running mechanism (4) comprising a base (41) and a running portion (42) disposed on the base (41) and driving the base (41) to move along a cleaning surface to be cleaned ;

a cleaning mechanism (6) disposed on the base (41) and including a cleaning portion (61) and an adjustment portion (62) that drives the cleaning portion (61) to reciprocate in an adjustment direction ).
The cleaning device according to claim 1, wherein the adjustment portion (62) comprises:

Adjusting the driving member (621), the adjusting driving member (621) is fixedly connected to the cleaning portion (61);

Adjusting a transmission assembly, the adjustment transmission assembly being coupled between the adjustment drive member (621) and the base (41), and driving the adjustment drive member under the driving of the adjustment drive member (621) 621) moving back and forth relative to the base (41) in the adjustment direction.
The cleaning device of claim 2 wherein said adjustment drive assembly comprises:

An adjustment gear (623), the adjustment gear (623) is disposed on the adjustment driving member (621), and rotates with an output shaft of the adjustment driving member (621);

The rack (622) is adjusted, the adjusting rack (622) is disposed on the base (41), and an extending direction of the adjusting rack (622) is the adjusting direction.
The cleaning device according to claim 2, wherein the cleaning portion (61) comprises:

Cleaning the mount (612), the cleaning mount (612) is reciprocally disposed on the base (41) in the adjustment direction, and the adjustment drive (621) is fixedly coupled to the cleaning installation On the seat (612);

Cleaning the driving member (613), the cleaning driving member (613) is disposed on the cleaning mounting seat (612);

a cleaning member (611) disposed on the base (41) and connected to the cleaning driving member (613), driven by the cleaning driving member (613) move.
The cleaning device according to claim 4, wherein the cleaning member (611) is a spiral roller brush, and the cleaning device further comprises a screw holder disposed on the base (41) and located in the spiral roller brush Anti-dust structure on both sides.
The cleaning device according to claim 1, wherein the adjustment direction has a first angle with the surface to be cleaned, and the first angle is 90°.
The cleaning device according to claim 1, wherein the running portion (42) comprises:

An active walking unit, the active walking unit is disposed on the base (41), and is attached to the surface to be cleaned;

An auxiliary walking unit is disposed on the base (41) and is attached to the auxiliary surface, and the auxiliary surface has a second angle with the surface to be cleaned.
A cleaning device according to claim 7, wherein

The active walking unit includes two active walking components, and the two active walking components are disposed on opposite sides of the base (41) in one-to-one correspondence, and each of the active walking components includes an active traveling wheel (421). );

The auxiliary walking unit includes two auxiliary walking components, and the two auxiliary walking components are disposed in one-to-one correspondence with the two active walking components, and each of the auxiliary walking components includes an auxiliary walking wheel (429), two The center distance between the auxiliary walking wheels (429) is equal to the center distance between the two active traveling wheels (421).
The cleaning device according to claim 8, wherein the active walking assembly further comprises:

An active travel drive member (422), the active travel drive member (422) is disposed on the base (41), coupled to the active travel wheel (421), and driving the active travel wheel (421) to rotate ;

A walking position detector (423) is disposed on the active travel drive (422) and controls the active travel drive (422) to operate or stop according to the detected position.
A cleaning device according to claim 1 wherein said cleaning device further A panel detector (7) is included, the panel detector (7) being disposed on the base (41) for detecting hot spots and/or cracks on the panel being cleaned.
The cleaning device according to claim 1, characterized in that the cleaning device further comprises a hood (3), the hood (3) is disposed outside the base (41), and the hood (3) ) is provided with a power panel (31).
A cleaning device according to claim 1, wherein said cleaning device further comprises a placement frame (21) disposed at a first end of the object to be cleaned and a first side disposed at said first object of said object to be cleaned An opposite second end cleaning frame (22) is provided with a cleaning brush (222).
A photovoltaic array, characterized in that the photovoltaic array comprises at least two photovoltaic panel sets (11), and a connecting rail (12) is arranged between two adjacent photovoltaic panel sets (11);

A cleaning device according to any one of claims 1 to 12 is provided on one of the photovoltaic panel assemblies (11).