CN210080164U

CN210080164U - Photovoltaic array cleaning device

Info

Publication number: CN210080164U
Application number: CN201920842867.XU
Authority: CN
Inventors: 吴海涛; 程琳淞; 黄江波
Original assignee: Yangtze Normal University
Current assignee: Yangtze Normal University
Priority date: 2019-06-05
Filing date: 2019-06-05
Publication date: 2020-02-18
Anticipated expiration: 2029-06-05

Abstract

The utility model discloses a photovoltaic array cleaning device, including the frame, be equipped with in the frame and follow the mechanism that cleans that frame length direction removed, the both ends of frame are equipped with and can drive the running gear assembly that cleans the mechanism and remove on the photovoltaic array, clean the mechanism with the clear scanning face of photovoltaic array contact with the running gear assembly is located the coplanar or is close to the coplanar with the running face of photovoltaic array contact. The utility model discloses a cleaning device can realize the cleaning to photovoltaic array surface dust.

Description

Photovoltaic array cleaning device

Technical Field

The utility model relates to a solar photovoltaic technology field specifically is a photovoltaic array cleaning device.

Background

Solar energy is one of the important forms of clean new energy utilization, and photovoltaic power generation is a main way of acquiring electric energy by utilizing solar energy and is also an important way for solving energy requirements. The cell slice made of semiconductor silicon is the most basic unit of the solar cell and is a core component for realizing the photovoltaic effect. In actual production and manufacture, a certain number of single battery pieces are connected in series or in parallel and then sealed to form an integral photovoltaic module. The photovoltaic module is formed by sealing a multilayer structure, and the uppermost layer is high-transmittance low-iron tempered glass (the average visible light transmittance is more than or equal to 92 percent) which plays a role in transmitting light and protecting a cell; the middle layer consists of polymer EVA (ethylene-vinyl acetate copolymer) and a silicon cell slice, and the EVA polymer wraps the cell slice to play a further role in protection; the lowermost layer consists of an alloy composite film TPT with the performances of ageing resistance, corrosion resistance, electric insulation and the like; the photovoltaic module frame made of the aluminum alloy plays a role in protecting the whole module.

The index for evaluating the performance of the photovoltaic module is the photoelectric conversion efficiency, factors influencing the photoelectric conversion efficiency are various, and the conversion efficiency is influenced by the environmental factors such as surface dust deposition, the working temperature of the module, the solar irradiation intensity and the like of the photovoltaic module only by analyzing from the environmental angle. The surface dust deposition reduces the power generation efficiency mainly because the dust deposition can reduce the sunlight transmittance, the dust deposition phenomenon on the surface of the photovoltaic module has great influence on the photoelectric conversion efficiency of the photovoltaic module, and the 'hot spot effect' caused by local shadow can seriously damage the module. According to investigation, manual cleaning is the main mode of dust cleaning of the photovoltaic modules at present, and the method is a good choice for courtyard type small photovoltaic power stations. However, for large photovoltaic arrays or photovoltaic power stations, the labor cost and water resource consumption caused by manual cleaning are burdensome. At present, various schemes are provided and corresponding devices are developed by a plurality of companies and research institutions at home and abroad aiming at cleaning of large photovoltaic arrays, but the devices have the defects of high cost, inflexible operation, lower cleaning efficiency, poor reliability, easy damage to the photovoltaic arrays and the like.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the to-be-solved technical problem of the utility model is: how to provide a photovoltaic array cleaning device which can carry out dust treatment on the surface of a large photovoltaic array or a photovoltaic power station.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a photovoltaic array cleaning device, includes the frame, is equipped with in the frame and follows the mechanism that cleans that frame length direction removed, the both ends of frame are equipped with and drive the running gear assembly that cleans the mechanism and move on the photovoltaic array, clean the mechanism with the clean plane of photovoltaic array contact with the running gear assembly is located the coplanar or is close to the coplanar with the running gear of photovoltaic array contact.

This cleaning device is when using, because clean the mechanism and clean the face and the running surface that running gear assembly and photovoltaic array contacted of photovoltaic array contact lie in the coplanar or be close to the coplanar for clean the mechanism and wait that the effectual contact of photovoltaic array surface energy of cleaning and effectively clean the dust on photovoltaic array surface, at the in-process that cleans, clean the length direction removal that the mechanism can follow the frame, thereby should clean the structure and can clean the photovoltaic array surface of frame length direction.

After the cleaning mechanism cleans the surface of the photovoltaic array in the length direction of the rack, the walking mechanism assembly drives the cleaning mechanism to move on the photovoltaic array, so that the cleaning mechanism moves to the surface of the photovoltaic array which is not cleaned, and the cleaning mechanism cleans the surface of the photovoltaic array at the position, and the operation is repeated, so that the cleaning mechanism can move to all parts of the surface to be cleaned of the photovoltaic array under the driving of the walking mechanism assembly, and the dust on the surface of the photovoltaic array is effectively cleaned; therefore, the scheme can be used for carrying out dust treatment on the surface of a large photovoltaic array or a photovoltaic power station.

Preferably, the running gear assembly includes fixed connection and is in the mount pad of frame both ends side, the length direction of mount pad is followed the advancing direction of running gear assembly, the both ends of mount pad length direction are equipped with running gear respectively, lie in two on the mount pad position department between the running gear still is equipped with installation mechanism, installation mechanism can be connected or the separation with waiting of photovoltaic array to clean the surface.

In this way, because the surface of the photovoltaic array is made of glass, the friction coefficient is small, and the traveling mechanisms are arranged at the two ends of the mounting seat in the length direction, so that the four traveling mechanisms at the two ends of the rack are in contact with the surface of the photovoltaic array, the contact area of the four traveling mechanisms is increased, and the whole cleaning device is driven by the traveling mechanism assembly to travel along a set route; and meanwhile, the mounting mechanism is arranged at the position between the two travelling mechanisms on each side of the mounting seat and is used for being connected with or separated from the surface to be cleaned of the photovoltaic array, and through additionally arranging the mounting mechanism, when the travelling mechanism assembly drives the cleaning mechanism to reach the photovoltaic array to be cleaned, the mounting mechanism is connected with the surface of the photovoltaic array, so that the travelling mechanism assembly and the surface of the photovoltaic array slide relatively when the cleaning mechanism cleans the surface of the photovoltaic array, and the normal work of the cleaning mechanism is ensured.

Like this, installation mechanism includes vacuum pump and vacuum chuck, vacuum pump fixed connection be in on the mount pad, vacuum chuck's upper end through the connecting pipe with the vacuum pump is connected, vacuum chuck's lower extreme opening is towards the surface of waiting to clean of photovoltaic array, gas passage has been seted up in the connecting pipe, gas passage's both sides respectively with vacuum chuck with the vacuum pump communicates with each other, lower extreme opening place plane when vacuum chuck does not vacuumize is close to running plane that running gear and photovoltaic array contacted.

Therefore, when the mounting mechanism is connected with the surface of the photovoltaic array, the vacuum pump is used for pumping air in the vacuum sucker, so that the vacuum sucker is tightly attached to the surface of the photovoltaic array, the reliable connection between the cleaning device and the photovoltaic array is realized, when the mounting mechanism is required to be separated from the surface of the photovoltaic array, the vacuum pump fills air into the vacuum sucker, the vacuum sucker is slightly lifted and is not tightly attached to the surface of the photovoltaic array, and the travelling mechanism assembly can drive the whole cleaning device to move on the surface of the photovoltaic array.

Because the surface of photovoltaic array is the glass material, the installation mechanism that adopts above-mentioned structural style can not produce great effort to the surface of photovoltaic array when being connected with the surface of photovoltaic array, consider simultaneously that each photovoltaic electroplax can have gap or arch when the concatenation installation, when the vacuum pump is to the vacuum chuck in charge of air, the vacuum chuck will rise slightly, thereby make running gear assembly in the in-process of driving whole cleaning device motion, the gap or the arch that produces when the concatenation installation is crossed to vacuum chuck ability is fine, improve whole cleaning device's trafficability characteristic.

Preferably, the traveling mechanism comprises a track, a driving assembly capable of driving the track to move is arranged on the inner side of the track, the driving assembly comprises a first motor and a driving gear fixedly connected with the first motor and capable of rotating under the driving of the first motor, driven teeth capable of being always meshed with the driving gear are arranged on the inner surface of the track, driven wheels are further arranged on the inner surface of the track and located below the driving gear, the driven wheels are connected with the driving assembly through a supporting frame, the number of the driven wheels is eight, the eight driven wheels are pairwise one, two driven wheels in the same group are symmetrically distributed at two ends of a perpendicular line perpendicular to the advancing direction of the track, and the driving gear and the driven wheels support the track into a triangular structure.

Like this, when running gear need drive whole cleaning device when photovoltaic array's surface removal, start first motor, under the drive of first motor, the driving gear is rotatory to drive again and the driven tooth of driving gear meshing is rotatory, on the other hand, set up from the driving wheel through the below at the driving gear, utilize from driving wheel and driving gear to support the track and form the triangle-shaped structure, the stability of triangle-shaped structure is better, can guarantee the steady of whole device operation process, and drive the removal of whole cleaning device on photovoltaic array surface under the rotation effect of driven tooth.

Because the surface of photovoltaic array is the glass material, coefficient of friction is little, through the structural style who adopts the track, can effectual increase track and photovoltaic array surface area of contact, effectively prevent that whole cleaning device from producing relative slip with the surface of photovoltaic array at the in-process that removes, has guaranteed that whole cleaning device moves according to established route all the time.

Preferably, the cleaning mechanism comprises a cleaning component and a dust hood arranged on two sides of the cleaning component, the cleaning component comprises a rolling brush and a second motor which is connected with the rolling brush and can drive the rolling brush to rotate, one side of the dust hood facing the cleaning component is provided with a plurality of dust suction inlets, the other side of the dust hood is provided with a plurality of air outlets, a filter screen layer is vertically arranged between the dust suction inlets and the air outlets, and a negative pressure device which can generate negative pressure in the dust hood and enable air flow to flow from the dust suction inlets to the air outlets is further arranged in the dust hood.

Like this, clean the mechanism when cleaning the photovoltaic array surface, the second motor drives the round brush and rotates, the round brush then carries out cleaning to the surface of photovoltaic array, the dust that the round brush was swept up at clean in-process is in the dust suction inlet of the suction hood of clean subassembly both sides by the suction under negative pressure device's effect, the dust of being inhaled the dust suction inlet is through filtering the stratum reticulare, filter the stratum reticulare and stop the dust in the inside of suction hood, last clean air is discharged from air outlet department, the secondary pollution of the dust that the round brush swept up to photovoltaic array surface production has been prevented, the effect to the cleanness on photovoltaic array surface and prevent secondary pollution has been realized from this.

Preferably, the rolling brushes are arranged in parallel along the length direction of the rack or in parallel along the direction perpendicular to the length direction of the rack, and the dust collection covers are arranged on two sides of the rolling brushes on two ends.

Like this, through setting up a plurality of round brushes to with the round brush along the length direction of frame arrange side by side or along the perpendicular to the direction of frame length is arranged side by side, the suction hood sets up the both sides at both ends side round brush, makes the round brush when cleaning the surface of photovoltaic array, can clean great area simultaneously, thereby improves the work efficiency who cleans the mechanism, and the suction hood that is located both ends side round brush both sides then absorbs the dust that cleans the production from both sides.

Preferably, the support frame comprises a transverse first support frame connected with the driving component, a first oblique support frame and a second oblique support frame are arranged on the transverse first support frame, the first oblique support frame and the second oblique support frame are symmetrically distributed on two sides of the vertical axis of the track, an included angle between the first oblique support frame and the vertical axis of the track and an included angle between the second oblique support frame and the vertical axis of the track are larger than 0 degree and smaller than 90 degrees, a first mounting frame is transversely arranged at the other end of the first oblique support frame connected with the transverse first support frame, one side of the first mounting frame close to the end part of the track is connected with a group of driven wheels, a first connecting block is vertically arranged at the lower end of the other side of the first mounting frame, and a second mounting frame is transversely arranged at the other end of the second oblique support frame connected with the transverse first support, one side that the second mounting bracket is close to the track tip is connected with a set ofly from the driving wheel, the vertical second connecting block that is equipped with of lower extreme of second mounting bracket opposite side, first connecting block with the second connecting block passes through horizontal second support frame is connected, horizontal second support frame is followed track direction of advance's both sides respectively are equipped with a set ofly from the driving wheel.

Like this, under the effect of first diagonal bracing frame and second diagonal bracing frame, make two sets of follow driving wheels that are close to the track both ends and have more than 0 and be less than 90 contained angles between the track bottom plane, under the supporting role from the driving wheel, just so make the track both ends also have certain angle, gap or protruding profile when considering between each photovoltaic electroplax concatenation installation may influence cleaning device's marcing, through designing the track both ends and having certain angle, can make the track can approximate parallel contact between walking in-process and some protruding faces, improve the obstacle crossing function of track.

Preferably, a steering mechanism is further arranged at the upper end of the travelling mechanism and is a steering engine, one side of an output shaft at the upper end of the steering engine is connected with the mounting seat, and the lower end of the steering engine is connected with the travelling mechanism through a connecting frame.

Therefore, the steering engine is a position (angle) servo driver and is suitable for control systems which need constantly changing angles and can keep the angles, the output shaft of the steering engine is connected with the mounting seat, and the steering engine and the walking mechanism are connected through the connecting frame, so that the steering engine is started when steering is needed, the output shaft of the steering engine is connected with the mounting seat, the mounting seat is kept motionless, and the steering engine drives the walking mechanism to rotate through the connecting frame, so that the steering purpose is achieved.

In the process of cleaning the photovoltaic array, when running gear drives cleaning device and moves the edge of photovoltaic array, start the steering wheel, the steering wheel drives running gear and carries out 90 rotations, running gear after the rotation drives the length that cleaning device removed a frame, start the steering wheel once more, the steering wheel drives running gear and rotates 90 toward circling round, be connected installation mechanism with treating clear photovoltaic array surface, clean the mechanism and clean photovoltaic array surface, so relapse, can all-round realization be to the cleaning of photovoltaic array surface dust.

Preferably, the rack comprises a screw rod, the cleaning mechanism is connected with the screw rod through a support, and a connecting gear forming a screw rod pair with the screw rod and a third motor capable of driving the connecting gear to rotate are arranged in the support.

Therefore, the third motor is started, the third motor drives the connecting gear to rotate, and the connecting gear moves along the length direction of the screw rod due to the fact that the screw rod pair is formed between the connecting gear and the screw rod, and then the connecting gear drives the cleaning mechanism to move along the length direction of the screw rod through the support.

Preferably, the rack further comprises a first sliding rod and a second sliding rod which are perpendicular to the length direction of the rack and distributed on two sides of the screw rod, and the first sliding rod and the second sliding rod both penetrate through the bracket and fixedly connect two ends of the bracket to the mounting seat.

Therefore, by arranging the first sliding rod and the second sliding rod, when the cleaning mechanism moves along the length direction of the lead screw, the first sliding rod and the second sliding rod can enable the cleaning mechanism to move on the lead screw more stably.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a cleaning mechanism according to an embodiment of the present invention;

FIG. 3 is a partial cross-sectional view of the suction hood of FIG. 2;

FIG. 4 is a schematic structural view of a traveling mechanism and a steering mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the steering mechanism in fig. 4.

Description of reference numerals: the cleaning device comprises a cleaning mechanism 1, a rolling brush 11, a dust hood 12, a dust suction inlet 13, a filter screen layer 14, a suction inlet 15, an exhaust pipe 16, an air outlet 17, a traveling mechanism 2, a connecting frame 21, a crawler 22, a first oblique supporting frame 23, a second oblique supporting frame 24, a driving gear 25, a driven wheel 26, a transverse second supporting frame 27, a steering mechanism 3, a direct current motor 31, a speed change gear set 32, an adjustable potentiometer 33, a control circuit board 34, a lead screw 4, a lead screw limiter 41, a first slide bar 5, a mounting seat 6, a vacuum pump 7, a connecting pipe 8, a vacuum sucker 9, a support 10, an electric storage device 101 and an ultrasonic sensor 102.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in the attached drawing 1, the photovoltaic array cleaning device comprises a rack, wherein a cleaning mechanism 1 capable of moving along the length direction of the rack is arranged on the rack, traveling mechanism assemblies capable of driving the cleaning mechanism 1 to move on a photovoltaic array are arranged at two ends of the rack, and a cleaning surface of the cleaning mechanism 1, which is in contact with the photovoltaic array, and a traveling surface of the traveling mechanism assembly, which is in contact with the photovoltaic array, are positioned on the same plane or close to the same plane.

This cleaning device is when using, because clean the walking face that the mechanism 1 and the photovoltaic array contact cleaned the face and the walking face that the walking mechanism assembly and the photovoltaic array contact are located the coplanar or are close to the coplanar for clean mechanism 1 and treat that the effectual contact of photovoltaic array surface energy of cleaning and effectively clean the dust on photovoltaic array surface, at the in-process that cleans, clean the length direction removal that mechanism 1 can follow the frame, thereby should clean the structure and can clean the photovoltaic array surface of frame length direction.

After the cleaning mechanism 1 cleans the surface of the photovoltaic array in the length direction of the rack, the walking mechanism assembly drives the cleaning mechanism 1 to move on the photovoltaic array, so that the cleaning mechanism 1 moves to the surface of the photovoltaic array which is not cleaned, the cleaning mechanism 1 cleans the surface of the photovoltaic array at the position, and the above steps are repeated, and the cleaning mechanism 1 can move to each position of the surface to be cleaned of the photovoltaic array under the driving of the walking mechanism assembly, so that the dust on the surface of the photovoltaic array is effectively cleaned; therefore, the scheme can be used for carrying out dust treatment on the surface of a large photovoltaic array or a photovoltaic power station.

In this embodiment, the traveling mechanism assembly includes the mount bases 6 fixedly connected to both ends of the frame, the length direction of the mount bases 6 is along the advancing direction of the traveling mechanism assembly, the traveling mechanisms 2 are respectively disposed at both ends of the length direction of the mount bases 6, the mount bases 6 are further provided with the mounting mechanisms at positions between the two traveling mechanisms 2, and the mounting mechanisms can be connected to or separated from the surface to be cleaned of the photovoltaic array.

In this way, because the surface of the photovoltaic array is made of glass, the friction coefficient is small, and the traveling mechanisms 2 are arranged at the two ends of the mounting seat 6 in the length direction, so that the four traveling mechanisms 2 at the two ends of the frame are in contact with the surface of the photovoltaic array, the contact area of the two traveling mechanisms is increased, and the whole cleaning device is driven by the traveling mechanism assembly to travel along a set route; meanwhile, an installation mechanism is arranged at a position, between the two walking mechanisms, on each side of the installation seat 6, and is used for being connected with or separated from the surface to be cleaned of the photovoltaic array, through the addition of the installation mechanism, when the walking mechanism assembly drives the cleaning mechanism 1 to reach the photovoltaic array to be cleaned, the installation mechanism is connected with the surface of the photovoltaic array, the situation that the walking mechanism assembly and the surface of the photovoltaic array slide relatively when the cleaning mechanism 1 cleans the surface of the photovoltaic array is avoided, and the normal work of the cleaning mechanism 1 is guaranteed.

Like this, installation mechanism includes vacuum pump 7 and vacuum chuck 9, and vacuum pump 7 fixed connection is on mount pad 6, and vacuum chuck 9's upper end is connected with vacuum pump 7 through connecting pipe 8, and vacuum chuck 9's lower extreme opening is towards the surface of waiting to clean of photovoltaic array, has seted up gas passage in the connecting pipe 8, and gas passage's both sides communicate with each other with vacuum chuck 9 and vacuum pump 7 respectively, and the lower extreme opening place plane when vacuum chuck 9 is not vacuumized is close to the walking plane of running gear 2 and photovoltaic array contact.

Therefore, when the mounting mechanism is connected with the surface of the photovoltaic array, the vacuum pump 7 is used for pumping air in the vacuum sucker 9, so that the vacuum sucker 9 is tightly attached to the surface of the photovoltaic array, the reliable connection between the cleaning device and the photovoltaic array is realized, when the mounting mechanism is required to be separated from the surface of the photovoltaic array, the vacuum pump 7 fills air into the vacuum sucker 9, the vacuum sucker 9 is slightly lifted and is not tightly attached to the surface of the photovoltaic array, and the travelling mechanism assembly can drive the whole cleaning device to move on the surface of the photovoltaic array.

Because the surface of photovoltaic array is the glass material, the installation mechanism that adopts above-mentioned structural style can not produce great effort to the surface of photovoltaic array when being connected with the surface of photovoltaic array, consider simultaneously that each photovoltaic electroplax can have gap or arch when the concatenation is installed, when vacuum pump 7 is filled into the air in to vacuum chuck 9, vacuum chuck 9 will rise slightly, thereby make running gear assembly in the in-process of driving whole cleaning device motion, gap or arch that the concatenation produced when installing are crossed to vacuum chuck 9 can be fine, improve whole cleaning device's trafficability characteristic.

As shown in fig. 4, in this embodiment, the traveling mechanism 2 includes a crawler belt 22, a driving assembly capable of driving the crawler belt 22 to move is disposed on an inner side of the crawler belt 22, the driving assembly includes a first motor and a driving gear 25 fixedly connected to the first motor and capable of rotating under the driving of the first motor, driven teeth capable of always engaging with the driving gear 25 are disposed on an inner surface of the crawler belt 22, driven wheels 26 are further disposed on the inner surface of the crawler belt 22 and located below the driving gear 25, the driven wheels 26 are connected to the driving assembly through a supporting frame, eight driven wheels 26 are eight in total, eight driven wheels 26 are grouped in pairs, two driven wheels 26 in the same group are symmetrically disposed at two ends of a perpendicular line perpendicular to the advancing direction of the crawler belt 22, and the driving gear 25 and the driven wheels 26.

Like this, when running gear 2 need drive whole cleaning device when photovoltaic array's surface removal, start first motor, under the drive of first motor, driving gear 25 is rotatory to drive again and is rotatory with the driven tooth of driving gear 25 meshing, on the other hand, through set up in the below of driving gear 25 from driving wheel 26, utilize from driving wheel 26 and driving gear 25 to support track 22 and form the triangle-shaped structure, the stability of triangle-shaped structure is better, can guarantee the steady of whole device operation process, and drive the removal of whole cleaning device on photovoltaic array surface under the rotation effect of driven tooth.

Because the surface of photovoltaic array is the glass material, coefficient of friction is little, through the structural style who adopts track 22, can effectual increase track 22 and the surperficial area of contact of photovoltaic array, effectively prevent that whole cleaning device from producing relative slip with the surface of photovoltaic array at the in-process that removes, has guaranteed that whole cleaning device moves according to established route all the time.

As shown in fig. 2 and fig. 3, in this embodiment, the sweeping mechanism 1 includes a cleaning assembly and a dust hood 12 disposed at two sides of the cleaning assembly, the cleaning assembly includes a rolling brush 11 and a second motor connected to the rolling brush 11 and capable of driving the rolling brush 11 to rotate, one side of the dust hood 12 facing the cleaning assembly is provided with a plurality of dust suction ports 13, the other side of the dust hood 12 is provided with a plurality of air outlets 17, a filter screen layer 14 is vertically disposed between the dust suction ports 13 and the air outlets 17, and a negative pressure device capable of generating a negative pressure in the dust hood 12 and making an air flow from the dust suction ports 13 to the air outlets 17 is further disposed in the dust hood 12.

Thus, when the sweeping mechanism 1 cleans the surface of the photovoltaic array, the second motor drives the rolling brush 11 to rotate, the rolling brush 11 cleans the surface of the photovoltaic array, dust swept by the rolling brush 11 in the cleaning process is sucked into the dust suction inlets 13 of the dust hoods 12 on two sides of the cleaning assembly under the action of the negative pressure device, the dust sucked into the dust suction inlets 13 passes through the filter screen layer 14, the filter screen layer 14 blocks the dust inside the dust hoods 12, and finally clean air is discharged from the air outlet 17, so that secondary pollution of the dust swept by the rolling brush 11 on the surface of the photovoltaic array is prevented, and the effects of cleaning the surface of the photovoltaic array and preventing the secondary pollution are achieved.

In this embodiment, there are three rolling brushes 11, and the three rolling brushes 11 are arranged in parallel along the length direction of the frame; of course, the number of the rolling brushes 11 is plural, the plural rolling brushes 11 are arranged in parallel along the length direction of the rack or in parallel along the direction perpendicular to the length direction of the rack, and the dust collection covers 12 are arranged on both sides of the rolling brushes 11 on both ends.

Like this, through setting up a plurality of round brushes 11 to with round brushes 11 arrange side by side along the length direction of frame or arrange side by side along the direction of perpendicular to frame length, dust cage 12 sets up the both sides at both ends side round brushes 11, makes round brushes 11 when cleaning the surface of photovoltaic array, can clean great area simultaneously, thereby improves the work efficiency who cleans mechanism 1, and dust cage 12 that is located both sides of both ends side round brushes 11 then absorbs the dust that cleans the production from both sides.

In this embodiment, the support frame includes a transverse first support frame connected to the driving assembly, a first oblique support frame 23 and a second oblique support frame 24 are disposed on the transverse first support frame, the first oblique support frame 23 and the second oblique support frame 24 are symmetrically distributed on two sides of the vertical axis of the track 22, an included angle between the first oblique support frame 23 and the vertical axis of the track 22 and an included angle between the second oblique support frame 24 and the vertical axis of the track 22 are greater than 0 ° and less than 90 °, a first mounting frame is transversely disposed at the other end of the first oblique support frame 23 connected to the transverse first support frame, one side of the first mounting frame near the end of the track 22 is connected to a set of driven wheels 26, a first connecting block is vertically disposed at the lower end of the other side of the first mounting frame, a second mounting frame is transversely disposed at the other end of the second oblique support frame 24 connected to the transverse first support, the lower extreme of second mounting bracket opposite side is vertical to be equipped with the second connecting block, and first connecting block is connected through horizontal second support frame 27 with the second connecting block, and horizontal second support frame 27 respectively is equipped with a set of follow driving wheel 26 along the both sides of track 22 advancing direction.

Thus, under the action of the first oblique support frame 23 and the second oblique support frame 24, two groups of driven wheels 26 close to two ends of the crawler 22 and a bottom plane of the crawler 22 form included angles larger than 0 degree and smaller than 90 degrees, under the supporting action of the driven wheels 26, two ends of the crawler 22 also form a certain angle, and considering that gaps or protruding outlines during splicing installation between each photovoltaic panel may influence the traveling of the cleaning device, the two ends of the crawler 22 are designed to form a certain angle, so that the crawler 22 can be approximately in parallel contact with some protruding surfaces in the traveling process, and the obstacle crossing function of the crawler 22 is improved.

As shown in fig. 5, in this embodiment, a steering mechanism 3 is further disposed at the upper end of the traveling mechanism 2, the steering mechanism 3 is a steering engine, one side of an output shaft at the upper end of the steering engine is connected with the mounting seat 6, and the lower end of the steering engine is connected with the traveling mechanism 2 through a connecting frame 21; the steering engine comprises a control circuit board 34, a direct current motor 31 and an adjustable potentiometer 33 are respectively installed at the upper end of the control circuit board 34, and the steering engine further comprises a speed change gear set 32, and the speed change gear set 32 is connected with a driving shaft of the direct current motor 31.

Therefore, the steering engine is a position (angle) servo driver and is suitable for control systems which need to change angles continuously and can keep, the output shaft of the steering engine is connected with the mounting seat 6, the steering engine and the walking mechanism 2 are connected through the connecting frame 21, the steering engine is started when steering is needed, the output shaft of the steering engine is connected with the mounting seat 6, the mounting seat 6 keeps motionless, and the steering engine drives the walking mechanism 2 to rotate through the connecting frame 21, so that the steering purpose is achieved.

In-process cleaning photovoltaic array, when running gear 2 drives cleaning device and moves photovoltaic array's edge, start the steering wheel, the steering wheel drives running gear 2 and carries out 90 rotations, running gear 2 after the rotation drives the length that cleaning device removed a frame, the steering wheel is started once more, the steering wheel drives running gear 2 and back rotation 90, be connected installation mechanism with treating clear photovoltaic array surface, it cleans mechanism 1 and cleans photovoltaic array surface, so relapse, can all-round realization be to the cleaning of photovoltaic array surface dust.

In this embodiment, the frame includes a screw 4, the cleaning mechanism 1 is connected to the screw 4 through a bracket 10, and a connecting gear forming a screw pair with the screw 4 and a third motor capable of driving the connecting gear to rotate are disposed in the bracket 10.

Thus, the third motor is started, the third motor drives the connecting gear to rotate, and the connecting gear moves along the length direction of the screw rod 4 due to the fact that the screw rod pair is formed between the connecting gear and the screw rod 4, and then the connecting gear drives the cleaning mechanism 1 to move along the length direction of the screw rod 4 through the support 10.

In this embodiment, the rack further includes a first slide bar 5 and a second slide bar distributed on two sides of the screw rod 4 along a direction perpendicular to the length direction of the rack, and both the first slide bar 5 and the second slide bar pass through the bracket 10 and fixedly connect two ends to the mounting base 6.

In this way, by arranging the first slide bar 5 and the second slide bar, when the sweeping mechanism 1 moves along the length direction of the lead screw 4, the first slide bar 5 and the second slide bar can enable the sweeping mechanism 1 to move on the lead screw 4 more stably.

In this embodiment, the driven teeth include a first driven tooth and a second driven tooth uniformly distributed along the radial direction of the inner surface of the track 22, and the driving gear 25 is provided with a first driving tooth slot and a second driving tooth slot respectively engaged with the first driven tooth and the second driven tooth.

Like this, when cooperating the driven tooth on driving gear 25 and track 22, inject first driven tooth in first initiative tooth's socket department, inject the second driven tooth in second initiative tooth's socket department for driving gear 25 is more convenient with the cooperation of driven tooth, can also inject the position of driving gear 25 simultaneously.

In this embodiment, the connecting pipe 8 includes a first vertical connecting portion and a second connecting portion of a U-shape with a downward opening, the first connecting portion is connected with the vacuum pump 7, and both ends of the opening of the second connecting portion are connected with the vacuum chuck 9.

Like this, through all connecting vacuum chuck 9 at second connecting portion open-ended both ends, when being connected with photovoltaic array's surface like this, every end all adsorbs whole cleaning device on photovoltaic array's surface through two vacuum chuck 9, improves the stability of connecting.

In the present embodiment, the crawler 22 is a crawler 22 made of an anti-slip material.

In this way, the track 22 made of the anti-slip material can effectively increase the friction force between the track 22 and the surface of the photovoltaic array, and further avoid the relative sliding between the track 22 and the surface of the photovoltaic array.

In this embodiment, the outer surface of the track 22 is made of a soft rubber material.

Thus, the elasticity and flexibility of the soft rubber are good, and the outer surface of the crawler 22 is made of the soft rubber material, so that when the crawler 22 moves, some small vibration can be absorbed by the soft rubber, and the vibration is prevented from being transmitted to the surface of the photovoltaic array.

In this embodiment, an air suction opening 15 and an air exhaust duct 16 that is vertically disposed and can generate negative pressure under the action of a negative pressure device are further disposed at an air outlet 17 of the dust hood 12, the air suction opening 15 and the air outlet 17 are respectively located at two axial sides of the air exhaust duct 16 and are both communicated with the air exhaust duct 16, and an opening of the air suction opening 15 faces the dust suction opening 13.

Thus, when the cleaning mechanism 1 cleans the surface of the photovoltaic array, the negative pressure device is started, the negative pressure device generates negative pressure in the exhaust pipe 16, and under the action of the negative pressure, air with dust is sucked in from the dust suction inlet 13, passes through the air suction inlet 15 and is finally discharged from the air outlet 17.

In this embodiment, the filter screen layer 14 includes a first filter screen and a second filter screen which are vertically arranged in parallel, and a gap is formed between the first filter screen and the second filter screen.

Like this, through setting up first filter screen and second filter screen, can realize the secondary filter to the air that has the dust, improve the effect of coming to the dust.

In the present embodiment, the dust suction inlet 13 and the air outlet 17 are uniformly distributed along the length direction of the roll brush 11.

Thus, dust along the length of the roller brush 11 can be effectively sucked into the dust hood 12.

In this embodiment, the first filter screen and the second filter screen are both of a concave-convex honeycomb structure.

Like this, concave-convex's honeycomb structure makes first filter screen and second filter screen and dust have bigger area of contact, has improved the filter effect of first filter screen and second filter screen to the dust.

In this embodiment, the surface of the roller brush 11 is provided with a plurality of nylon brush heads.

Therefore, the nylon brush head has good cleaning effect and low use cost, and is easy to clean.

In this embodiment, the negative pressure device is a fan.

Therefore, the effect of negative pressure is realized by utilizing the rotation of the fan, the effect is good, and the cost is low.

In this embodiment, the two ends of the lead screw 4 in the length direction are both provided with the lead screw stoppers 41, so that when the cleaning mechanism 1 moves along the length direction of the lead screw 4, the cleaning mechanism 1 and the mounting base 6 are prevented from colliding under the action of the lead screw stoppers 41.

In this embodiment, the two ends of the mounting seat 6 in the length direction are respectively provided with the ultrasonic sensors 102, so that when the traveling mechanism 2 moves to the edge of the photovoltaic array, the ultrasonic sensors 102 give an alarm and stop the traveling mechanism 2, thereby preventing the traveling mechanism 2 from exceeding the edge of the photovoltaic array in the moving process and falling, and ensuring the reliable operation of the whole device.

In this embodiment, the two ends of the mounting seat 6 and the bracket 10 are both provided with the electric storage device 101, and the electric storage device 101 is used for supplying power to the whole cleaning device, so that the reliable operation of the whole cleaning device is ensured.

Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims

1. Photovoltaic array cleaning device, its characterized in that includes the frame, is equipped with in the frame and follows the mechanism that cleans that frame length direction removed, the both ends of frame are equipped with and drive the running gear assembly that cleans the mechanism and move on the photovoltaic array, clean the mechanism with the clear plane of photovoltaic array contact with the running gear assembly is located the coplanar or is close to the coplanar with the running gear assembly of photovoltaic array contact.

2. The photovoltaic array cleaning device according to claim 1, wherein the traveling mechanism assembly comprises mounting seats fixedly connected to two end sides of the frame, the length direction of the mounting seats is along the advancing direction of the traveling mechanism assembly, the traveling mechanisms are respectively arranged at two ends of the mounting seats in the length direction, a mounting mechanism is further arranged on the mounting seats at a position between the two traveling mechanisms, and the mounting mechanism can be connected with or separated from the surface to be cleaned of the photovoltaic array.

3. The photovoltaic array cleaning device according to claim 2, wherein the mounting mechanism comprises a vacuum pump and a vacuum chuck, the vacuum pump is fixedly connected to the mounting base, the upper end of the vacuum chuck is connected with the vacuum pump through a connecting pipe, the lower opening of the vacuum chuck faces the surface to be cleaned of the photovoltaic array, a gas channel is formed in the connecting pipe, two sides of the gas channel are respectively communicated with the vacuum chuck and the vacuum pump, and the plane of the lower opening when the vacuum chuck is not vacuumized is close to the walking plane of the walking mechanism contacting with the photovoltaic array.

4. The photovoltaic array cleaning device as claimed in claim 2, wherein the traveling mechanism includes a track, a driving assembly is disposed inside the track and capable of driving the track to move, the driving assembly includes a first motor and a driving gear fixedly connected to the first motor and capable of rotating under the driving of the first motor, driven teeth capable of always engaging with the driving gear are disposed on an inner surface of the track, driven wheels are further disposed on the inner surface of the track below the driving gear, the driven wheels are connected to the driving assembly through a supporting frame, the number of the driven wheels is eight, the eight driven wheels are grouped in pairs, two driven wheels in the same group are symmetrically disposed at two ends of a perpendicular line perpendicular to the advancing direction of the track, and the driving gear and the driven wheels support the track in a triangular structure.

5. The photovoltaic array cleaning device according to claim 1, wherein the sweeping mechanism comprises a cleaning assembly and a dust hood disposed at two sides of the cleaning assembly, the cleaning assembly comprises a roller brush and a second motor connected to the roller brush and capable of driving the roller brush to rotate, one side of the dust hood facing the cleaning assembly is provided with a plurality of dust suction inlets, the other side of the dust hood is provided with a plurality of air outlets, a filter screen layer is vertically disposed between the dust suction inlets and the air outlets, and a negative pressure device capable of generating a negative pressure in the dust hood and making an air flow from the dust suction inlets to the air outlets is further disposed in the dust hood.

6. The photovoltaic array cleaning apparatus according to claim 5, wherein the roller brush is provided in plurality, the plurality of roller brushes are arranged in parallel along a length direction of the rack or in parallel along a direction perpendicular to the length direction of the rack, and the dust suction hoods are provided at both sides of the roller brushes at both end sides.

7. The photovoltaic array cleaning apparatus of claim 4, wherein the support frame comprises a transverse first support frame connected to the driving assembly, the transverse first support frame is provided with a first inclined support frame and a second inclined support frame, the first inclined support frame and the second inclined support frame are symmetrically distributed on two sides of the vertical axis of the track, an included angle between the first inclined support frame and the vertical axis of the track is greater than 0 degree and less than 90 degrees, the other end of the first inclined support frame connected to the transverse first support frame is transversely provided with a first mounting frame, one side of the first mounting frame close to the end of the track is connected to a group of driven wheels, the lower end of the other side of the first mounting frame is vertically provided with a first connecting block, and the other end of the second inclined support frame connected to the transverse first support frame is transversely provided with a second mounting frame, the second mounting bracket is close to one side of track tip is connected with a set ofly from the driving wheel, the vertical second connecting block that is equipped with of lower extreme of second mounting bracket opposite side, first connecting block with the second connecting block is connected through horizontal second support frame, horizontal second support frame is followed track direction of advance's both sides respectively are equipped with a set ofly from the driving wheel.

8. The photovoltaic array cleaning device according to claim 2, wherein a steering mechanism is further arranged at the upper end of the travelling mechanism, the steering mechanism is a steering engine, one side of an output shaft at the upper end of the steering engine is connected with the mounting seat, and the lower end of the steering engine is connected with the travelling mechanism through a connecting frame.

9. The photovoltaic array cleaning apparatus according to claim 2, wherein the frame comprises a lead screw, the sweeping mechanism is connected to the lead screw through a bracket, and a connecting gear forming a lead screw pair with the lead screw and a third motor capable of driving the connecting gear to rotate are disposed in the bracket.

10. The photovoltaic array cleaning apparatus of claim 9, wherein the frame further comprises a first slide bar and a second slide bar disposed on opposite sides of the lead screw in a direction perpendicular to a length of the frame, the first slide bar and the second slide bar both passing through the bracket and having both ends fixedly attached to the mounting block.