JP2014121680A - Cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning apparatus capable of efficiently removing liquid on a cleaning-target surface.SOLUTION: A cleaning apparatus 10 includes: a piping 18 and a nozzle 19 for supplying water for cleaning a cleaning-target surface; and additional blades 11a comprising elastic members which wipe out the cleaning-target surface. On each of the additional blades 11a, a plurality of cuts 22 are formed at a position corresponding to a lower side frame 104a projecting toward the cleaning-target surface and continuously extending along the traveling direction of each of the additional blades 11a.

Description

  The present invention relates to a cleaning device, and more particularly to a solar panel cleaning device.

  In recent years, from the viewpoint of environmental protection, an increasing number of households install solar panels (solar cells) that convert sunlight into electric power on the roof. In addition, discussions on alternative energy for oil / nuclear energy are taking place on a global scale, and the measures for the feed-in tariff system for renewable energy such as solar power generation have been implemented. A large-scale solar power plant is managed, and the electric power business by the in-house utilization of the generated electric power and the sale of electric power is being carried out.

  Until now, solar panels were supposed to be able to generate electricity without maintenance, such as being able to remove dirt on the surface due to rain. However, since the solar panel generates power by sunlight, if dirt such as dead leaves or dust adheres to the surface, the amount of power to be generated rapidly decreases. In particular, in areas with low rainfall, such as desert / dry areas, and areas with a lot of sediment such as volcanic ash, yellow sand, and snow, it is necessary to clean the surface of the solar panel in order to generate power efficiently throughout the year. Doing work.

  The solar panel cleaning machine of Patent Document 1 moves on the frame by applying a gear to the frame of the solar panel cleaning device and electrically driving a gear supported by a fixed car. In addition, the washing mops rotate and clean the solar panel with the water supply jet from the washing hose.

  Moreover, the solar panel cleaning apparatus of patent document 2 self-propels on a solar panel with four legs, and cleans a solar panel with the cleaning body (brush, blade) which cleans the surface of a solar panel. In addition, a high-pressure cleaning mechanism that sprays high-pressure cleaning liquid onto the surface of the solar panel is provided, and the dirt that is firmly stuck to the surface emerges.

JP 2010-287867 A (released on December 24, 2010) JP 2010-186819 A (released August 26, 2010)

  By the way, in the solar panel washing machine of patent document 1, washing mops rotate and move on the solar panel by water absorption jet from a washing hose and clean.

  However, in the configuration using only the cleaning mops, since the water after cleaning remains on the solar panel, there is a problem that dirt in the air tends to adhere before drying.

  In addition, since the cleaned water is contaminated with dirt such as dust accumulated on the panel, the dirt is reattached after drying and remains in a mottled pattern. In order to prevent this, it is possible to completely remove dirt with a lot of water, but there is a problem that the amount of water used and the cost are increased.

  Areas where solar panel cleaning devices are used are often areas where water resources are scarce, such as desert / dry areas, and reducing water consumption is a major issue.

  On the other hand, in the solar panel cleaning device of Patent Document 2, dirt is floated using a brush, and water (cleaning liquid) on the panel containing dirt is wiped off using a blade. However, solar panels are generally covered on four sides with a frame for reinforcement, and the cleaning machine of Patent Document 2 does not correspond to the convex shape of the solar panel surface by the frame, and the vicinity of the frame is soiled. It has the subject that the wiping residue of water will arise.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a cleaning apparatus that can efficiently remove the liquid on the surface to be cleaned even on the surface to be cleaned having a convex shape on the surface. There is to do.

  A cleaning apparatus according to an aspect of the present invention includes a liquid supply unit that supplies a cleaning liquid to a surface to be cleaned, and a first blade that is an elastic member that wipes the surface to be cleaned. Are provided with a plurality of cuts at positions corresponding to convex portions protruding from the surface to be cleaned and continuously extending along the traveling direction of the first blade.

  According to the cleaning apparatus, the liquid that tends to remain in the vicinity of the continuously extending convex portion can be efficiently removed from the surface to be cleaned by the first blade having a plurality of cuts. Therefore, cleaning with little wiping of the surface to be cleaned becomes possible.

It is the top view and side view explaining the state of installation of a solar power generation device. It is a top view which shows schematic structure of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a side view which shows schematic structure of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the positional relationship of the braid | blade and solar cell module of the washing | cleaning apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the positional relationship of the braid | blade and solar cell module of the washing | cleaning apparatus which concerns on other embodiment of this invention. It is a perspective view which shows the positional relationship of the braid | blade and solar cell module of the washing | cleaning apparatus which concerns on further another embodiment of this invention.

  Hereinafter, a cleaning device according to an embodiment of the present invention will be described with reference to the drawings. In the following description of the embodiments, the same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated. In the description of the embodiments, for the sake of convenience of explanation, upper, lower, left, and right expressions are used. However, these expressions are based on the drawings and do not limit the configuration of the invention.

  In the following embodiment, a solar panel cleaning device will be described. However, the embodiment of the present invention is not limited to the solar panel cleaning device, and may be a cleaning device used for flat parts such as a roof and a floor.

Embodiment 1
FIG. 1 is a diagram for explaining a state of installation of the solar power generation device 100. FIG. 1A is a front view of the solar power generation device 100, and FIG. 1B is a side view of the solar power generation device 100. The solar power generation device 100 includes a solar cell module 101, a gantry 102 for holding the solar cell module 101, and a fixing member 103. The fixing member 103 fixes the solar cell module 101 to the gantry 102. The solar cell module 101 is provided with a frame 104 for protecting the periphery of the solar cell module 101. The installation angle and height between the solar cell module 101 and the installation reference plane G are appropriately selected depending on the installation state. The installation angle is set to about 10 to 30 ° in consideration of the power generation amount and the like. The installation reference plane G itself may be inclined like a roof.

  In addition, there is a step between the light receiving surface of the solar cell module 101 and the frame 104 that protects the periphery. The frame 104 protrudes about 3 mm from the light receiving surface of the solar cell module 101. The light receiving surface of the solar cell module 101 is a surface to be cleaned that is cleaned by a cleaning device. As a result, when liquid such as rain water or cleaning liquid adhering to the solar cell module 101 descends the slope, the liquid cannot accumulate over the step and accumulates in the vicinity of the lower frame 104a of the solar cell module 101. I have it.

(Configuration of the cleaning apparatus 10)
FIG. 2 is a plan view showing a schematic configuration of the cleaning apparatus 10 according to the present embodiment. As shown in FIG. 2, the cleaning apparatus 10 includes a plurality of blades 11, a plurality of additional blades 11a, a holding member 12, a motor 13, tires 14 and 14a, a guide 15, a tank 16, a pump 17, a pipe 18, and a tube 18a. It has. Further, the traveling direction of the cleaning device 10 is X, and the direction parallel to the light receiving surface of the solar cell module 101 and orthogonal to the X direction is Y. The plurality of blades 11 and the plurality of additional blades 11a travel together with the cleaning device 10 in the X direction.

  The cleaning device 10 is disposed at a position where the tire 14 contacts the frame 104 of the solar cell module 101 and the guide 15 contacts the upper and lower ends of the solar cell module 101. The tire 14 keeps the distance between the solar cell module 101 and the cleaning device 10 constant. Although only one tire 14 is shown in FIG. 2, a plurality of tires 14 may be arranged so as to contact the frame 104. Further, the guide 15 prevents the cleaning device 10 from dropping or dropping from the solar cell module 101 inclined with respect to the installation reference plane, and the cleaning device 10 is linear along the upper and lower ends of the solar cell module 101. The stability when proceeding to is increased. Further, in order to improve the stability of the cleaning device 10, the plurality of tires 14 a are arranged so as to contact the frame 104.

  It is desirable that the extending direction of the blade 11 and the additional blade 11a is slightly inclined with respect to the direction Y perpendicular to the traveling direction of the cleaning device 10. In this embodiment, the extending direction of the blade 11 and the additional blade 11a is inclined by about 1 to 5 ° with respect to the direction Y. As a result, when the cleaning device 10 proceeds, the force that pushes the dirty water (liquid) on the solar cell module 101 wiped off by the blade 11 and the additional blade 11a in the inclination direction of the blade 11 and the additional blade 11a works. Sewage can be discharged smoothly from the light receiving surface. In addition, by slightly tilting the blade 11, when the blade 11 gets over the step of the frame 104 around the solar cell module 101, it gradually gets over from the point where it hits first. Can be reduced. The reason why the inclination of the blade 11 is as small as 1 to 5 ° is that the width of the holding member 12 that houses the blade 11 increases as the inclination increases.

  The additional blade 11a is attached to a position corresponding to each lower frame 104a of the solar cell module 101 in order to wipe off the steps of the frame 104 around the solar cell module 101 that cannot be sufficiently wiped by the blade 11 alone. The lower frame 104 a is a lower frame of the two sides of the frame 104 extending in the traveling direction of the cleaning device 10. The upper frame 104 c is an upper frame of two sides of the frame 104 extending in the traveling direction of the cleaning device 10. Note that the lower frame 104 a is a frame located on the lower side of the solar cell module 101 in a state where the photovoltaic power generation apparatus is actually installed. The lower frame 104 a is a convex portion that continuously extends along the traveling direction of the cleaning device 10. Note that the frames on the two sides of the frame 104 extending perpendicularly to the traveling direction of the cleaning device 10 are referred to as the lateral frame 104b. The lower frame 104a, the lateral frame 104b, and the upper frame 104c protrude from the light receiving surface of the solar cell module 101. The detailed positional relationship between the additional blade 11a and the blade 11 will be described later.

  The operation of the cleaning device 10 is performed by the motor 13 driving the tire 14. In the present embodiment, a single-wheel drive configuration in which the rotation shaft of the motor is directly connected to the nearest tire 14 is provided, but the driving force of the motor is transmitted to each tire by a shaft, a bearing, a timing belt, etc. Four-wheel drive may be used. The pipe 18 is connected to the pump 17 by a tube 18a. The pipe 18 is connected to another pipe 18 and a tube 18a. In addition, a nozzle 19 for injecting water (liquid) in the direction of the solar cell module 101 is attached to the pipe 18, and simultaneously with the driving of the motor 13, the pump 17 pipes the water stored in the tank 16. 18, and water is sprayed onto the solar cell module 101 through the nozzle 19. In the present embodiment, the nozzle 19 is attached to the pipe 18 in order to jet the water vigorously and lift the dirt on the solar cell module 101. However, a hole may be directly formed in the pipe 18 to serve as an injection port. The pipe 18 and the nozzle 19 (injection port) are liquid supply units that supply a liquid (water) for cleaning to the surface to be cleaned.

  In the present embodiment, the motor 13 and the pump 17 operate by being supplied with power from the battery 20, but may be directly supplied to the motor 13 and the pump 17 using an external power source. When power is directly supplied to the motor 13 and the pump 17 from an external power source, it is necessary to wire the power cord from the cleaning device 10 to the external power source. In such a case, it can be said that it is preferable to mount a battery because the power cord may be caught on the solar cell module 101 and obstacles around the solar cell module 101 and hinder the driving of the cleaning device.

  Hereinafter, various components provided in the cleaning apparatus 10 according to the present embodiment will be described in more detail. FIG. 3 is a side view showing a schematic configuration of the cleaning apparatus 10 in the present embodiment.

  The blade 11 and the additional blade 11a are arranged so that the surface (light receiving surface) of the solar cell module 101 and the edges of the blade 11 and the additional blade 11a are parallel to each other. Further, the blade 11 and the additional blade 11a are fixed to be inclined by about 30 to 45 ° from the normal direction of the plane of the solar cell module 101 to the traveling direction of the cleaning device 10. The reason for tilting and fixing the blade is to increase the wiping property of water used for cleaning the solar cell module 101. The material of the blade 11 and the additional blade 11a is preferably an elastic material (elastic member) in consideration of water and dirt wiping performance and weather resistance. For example, it is preferable to use a rubber blade using EPT rubber, urethane rubber or the like as the blade 11 and the additional blade 11a.

  The pipes 18 and the nozzles or the injection holes such as holes arranged in the pipes 18 are arranged so that water can be sprayed onto the blade 11 or the solar cell module 101. Regarding the number of injection ports and the injection amount, optimum values differ depending on the traveling speed of the cleaning device 10 and the maximum pressure / maximum flow rate of the pump. Therefore, the required amount may be calculated from the performance of the motor 13 and the pump 17.

  All the components of the cleaning device 10 are fixed to the holding member 12 directly or indirectly. The holding member 12 is preferably made of a material having excellent weather resistance since the cleaning device 10 is used outdoors and further cleaning is performed using water. In addition, the cleaning device 10 is installed so as to cover the longitudinal direction of the arranged solar cell modules 101, and the size of the cleaning device itself is 3 m or more, so the holding member 12 has high rigidity and low weight. It is required to be. In the present embodiment, the holding member 12 is an aluminum member that is lightweight and has excellent rust prevention properties, and is made lighter by using a frame structure having excellent rigidity such as a truss structure.

  Hereinafter, the blade 11 and the additional blade 11a provided in the cleaning device 10 according to the present embodiment will be described in more detail. FIG. 4 is a perspective view illustrating only the positional relationship between the blade 11 and the additional blade 11a and the solar cell module 101 in the present embodiment.

  As shown in FIG. 4, the blade 11 has a length covering all the space between the upper frame and the lower frame of the solar cell module 101 parallel to the traveling direction of the cleaning device 10. However, it is difficult to remove all the dirty water on the solar cell module 101 by wiping only the blade 11. The reason is that when the water accumulated in the vicinity of the lower frame 104a of the solar cell module 101 overflows due to the wiping of the blade 11, all of the water does not flow out of the lower frame 104a, and a part of the moving direction of the blade 11 The point which goes around to the opposite side of is mentioned. This is because most of the frames 104 of the solar cell modules 101 have been subjected to C surface processing or R surface processing for safety, so that part of the sewage that once climbed on the lower frame 104a is the C surface or This is because the light returns to the light receiving surface of the solar cell module 101 again through the R portion (curved surface). In order to prevent this, the blade 11 is made longer than the interval between the frames 104 of the solar cell module 101, and the position in contact with the lower frame 104a of the blade 11 is cut into the same shape as the cross-sectional shape of the lower frame 104a. Can be considered. However, since the cleaning device 10 is a large device having a length of about 3 m, it is difficult to align the cutting position of the blade 11 with the position of the lower frame 104a with high accuracy.

  The additional blade 11a is a blade attached to cope with the above problem. The additional blade 11a has a plurality of cuts 22 (slits) reaching the blade edge at a position corresponding to at least the lower frame 104a. The additional blade 11a having the notches 22 with a small pitch is deformed according to the convex shape of the lower frame 104a and can wipe up to the surface of the lower frame 104a in addition to the light receiving surface. Can be discharged. Further, unlike the above-described method of cutting off a part of the blade, it is not necessary to adjust the position precisely, and the structure is resistant to positional variations.

  In this embodiment, it was confirmed that the EPT rubber having a thickness of 3 mm was used for the blade 11 a, the gap between the cuts 22 was about 3 mm, and the cut depth was about 25 mm, thereby providing good drainage. However, in addition to the material and thickness of the blade, the depth and interval of the notch 22 can be set according to the size of the step of the frame and the magnitude of the force pressing the blade against the solar cell module.

  The interval between the cuts 22 may be smaller than the width of the lower frame 104a with which the additional blade 11a contacts. By making the interval of the notches 22 smaller than the width of the lower frame 104a, the gap between the additional blade 11a and the solar cell module 101 can be reduced. Therefore, the sewage on the solar cell module 101 can be discharged more efficiently. Further, the width of the region where the cut of the additional blade 11 a is provided is larger than the width of the corresponding convex portion on the solar cell module 101.

  Further, the number of cuts provided corresponding to one convex portion (lower frame 104a) can be 3 or more. When the number of cuts is 3 or more, even if the position of the additional blade 11a is shifted, any part between the cuts is arranged so as to correspond to the convex part. Therefore, sewage can be discharged more efficiently when the number of cuts is 3 or more than when the number of cuts is two.

  Further, in the present embodiment, the plurality of cuts 22 of the additional blade 11a are provided in a direction perpendicular to the edge of the blade, but may be provided in an oblique direction so as to correspond to the cross-sectional shape of the frame 104. .

  Note that when the relationship between the position of the cut 22 of the additional blade 11a and the position of the lower frame 104a changes, the wiping performance also changes. Therefore, in addition to the additional blade 11a, the rear additional blade 11a ′ having the same shape as that of the additional blade 11a can be arranged to easily improve the wiping property. The rear additional blade 11a ′ is arranged at a position corresponding to the lower frame 104a so as to be arranged in the direction opposite to the traveling direction with respect to the additional blade 11a. An additional blade may be added as appropriate according to the required cleaning performance.

  Further, it is preferable that the additional blade 11a is disposed at a distance from the main blade 11 in the direction opposite to the traveling direction. Further, the blade 11 and the additional blade 11a are arranged so as to partially overlap in the traveling direction. This is because, when the blade 11 gets over the lateral frame 104b between the solar cell modules 101 and enters the state shown in FIG. 4, some of the sewage wiped off by the blade 11 does not get over the step caused by the lateral frame 104b. This is to cope with a phenomenon that remains as it is. The sewage remaining without overcoming the step goes down along the lateral frame 104b in the inclination direction with respect to the installation reference plane of the solar cell module 101 with time, and finally accumulates in the vicinity of the lower frame 104a. End up. By arranging the additional blade 11a at an interval opposite to the traveling direction, until the additional blade 11a reaches the lateral frame 104b, the sewage left by the preceding blade 11 reaches the vicinity of the lower frame 104a. Time can be secured. Then, since the subsequent additional blade 11a wipes off the sewage accumulated in the vicinity of the lower frame 104a, it is possible to perform cleaning with good finish. The larger the shift amount of the additional blade 11a (the distance between the blade 11 and the additional blade 11a) is, the better the finishing is performed. However, the width of the cleaning device that accommodates the blade 11 and the additional blade 11a is increased accordingly. Therefore, the shift amount can be set according to the traveling speed of the cleaning device and the inclination angle of the solar cell module 101.

[Embodiment 2]
Hereinafter, a cleaning apparatus according to another embodiment of the present invention will be described in detail. In addition, since it is the same as that of Embodiment 1 about components other than the braid | blade of the cleaning apparatus which concerns on this embodiment, description is abbreviate | omitted.

  FIG. 5 is a perspective view illustrating only the positional relationship between the blade 21 and the solar cell module 101 in the present embodiment.

  The cleaning device of this embodiment includes a blade 21 instead of the blade 11, the additional blade 11a, and the rear additional blade 11a ′ of the first embodiment. The blade 21 has a length corresponding to the upper end to the lower end of the plurality of solar cell modules 101 arranged in the Y direction. The blade 21 has a plurality of cuts 22 that reach the edge of the blade 21 at positions corresponding to the lower frame 104 a and the upper frame 104 c of the solar cell module 101.

  The width of the region where the notch 22 is provided in the blade 21 is wider than the width of the convex portions (the lower frame 104 a and the upper frame 104) of the solar cell module 101. Further, the blade 21 has a region that does not have the notch 22 at a position corresponding to the light receiving surface of the solar cell module 101 (that is, a position not corresponding to the lower frame 104 a and the upper frame 104). Therefore, the sewage on the light receiving surface of the flat solar cell module 101 can be appropriately excluded.

  The cleaning apparatus of this embodiment does not have an additional blade, and can wipe the plurality of solar cell modules 101 with one blade. Therefore, the number of parts related to the blade can be reduced, and cost reduction can be realized. Moreover, since the cleaning apparatus of this embodiment does not need to shift the additional blade to the rear, the cleaning apparatus can be reduced in size and weight. Therefore, the cleaning device of this embodiment is more economical than the cleaning device of the first embodiment.

  According to the cleaning apparatus of the present embodiment, it is possible to meet the needs such as frequent cleaning by introducing a plurality of inexpensive cleaning apparatuses.

[Embodiment 3]
Hereinafter, a cleaning apparatus according to still another embodiment of the present invention will be described in detail. Since components other than the blade of the cleaning apparatus according to the present embodiment are the same as those of the first embodiment, the description thereof is omitted.

  FIG. 6 is a perspective view illustrating only the positional relationship between the blade 11, the additional blade 11a, and the solar cell module 101 in the present embodiment.

  The cleaning apparatus of the present embodiment includes a rear blade 11 ′ in addition to the blade 11, the additional blade 11a, and the rear additional blade 11a ′ of the first embodiment. The rear blade 11 ′ is arranged at a position shifted with respect to the blade 11 in the direction opposite to the traveling direction of the cleaning device. The rear additional blade 11 ′ is disposed at a position shifted in the reverse direction of the cleaning device with respect to the additional blade 11 a and on the opposite side of the forward direction from the rear blade 11 ′. The rear blade 11 ′ has the same configuration as the blade 11.

  The rear blade 11 ′ is arranged at a distance from the additional blade 11 a on the opposite side in the traveling direction. The rear additional blade 11a ′ is disposed at a distance from the rear blade 11 ′ on the opposite side in the traveling direction.

  Thereby, since the subsequent back blade 11 ′ and the back additional blade 11a ′ wipe off the sewage left by the preceding blade 11 and the additional blade 11a, a cleaning device having excellent wiping performance can be provided.

  Further, the cleaning device of this embodiment can cope with unwiping of the fixing member 103 that fastens the frame 104 and the gantry. The fixing member 103 protrudes further from the light receiving surface of the solar cell module 101 than the frame 104. The level difference between the light receiving surface of the solar cell module 101 and the fixing member 103 is about 15 mm. In order for the blade 11 to get over this step, it is necessary to take measures such as intentionally loosening the fixing of the blade 11 to the holding member of the cleaning device at a position corresponding to the fixing member 103. For this reason, linear unwiping tends to occur on a line passing through the fixing member 103 and parallel to the traveling direction of the cleaning device 10 on the solar cell module 101.

  The rear blade 11 ′ can cope with the linear wiping residue that cannot be handled by the additional blade 11 a, so that the wiping performance can be further improved as compared with the first and second embodiments.

  The solar panel cleaning system according to the present invention includes the above-described cleaning device, and further includes a sensing function for detecting the remaining amount of liquid in the tank 16 and automatically stopping and operating the solar panel (solar cell module) row end. It has a sensing function that detects and automatically stops, and / or a lifter, an automatic guided vehicle, etc. for moving the cleaning device to the next row when there are many rows of solar panels. The solar panel cleaning system is a system that operates the cleaning device appropriately in accordance with the configuration of the solar power generation device and has flexibility to cope with a large-scale solar panel.

  Therefore, there is an effect that it is possible to provide a cleaning system having a high cleaning ability that is not affected by the convex shape of the surface to be cleaned.

  In addition, the above-described cleaning apparatus is not limited to the solar power generation apparatus, and can be suitably applied to a surface to be cleaned having a convex portion that is continuous along the traveling direction of the cleaning apparatus. For example, it is possible to adapt the cleaning device described above to curved arcades, general household roofs, and corridors.

[Summary]
The cleaning apparatus according to the first aspect of the present invention includes a liquid supply unit (pipe 18 and nozzle 19) for supplying a cleaning liquid to the surface to be cleaned, and a first blade (an elastic member) that wipes the surface to be cleaned ( 11a), and the first blade protrudes from the surface to be cleaned and continuously extends along the traveling direction of the first blade (lower frame 104a, upper frame 104c). A plurality of cuts (22) are provided at positions corresponding to.

  According to said structure, according to the shape of the convex part in a to-be-cleaned surface, the 1st braid | blade provided with the some notch contact | connects a convex part without gap. Therefore, the liquid that tends to remain in the vicinity of the continuously extending convex portion can be efficiently removed from the surface to be cleaned by the first blade having a plurality of cuts. Therefore, cleaning with little wiping of the surface to be cleaned becomes possible.

  A cleaning device according to aspect 2 of the present invention includes the second blade (11) that is an elastic member that wipes the surface to be cleaned in aspect 1, and the second blade does not have a notch, and the first blade May be configured to be spaced apart from the second blade on the opposite side of the traveling direction of the first blade.

  According to the above configuration, the liquid left unwiped by the preceding second blade can be wiped by the first blade provided with a plurality of cuts that proceed with a delay. Therefore, even when there is another convex portion at the position of the preceding second blade, it is possible to prevent unwiping.

  The cleaning device according to aspect 3 of the present invention includes the third blade (11 ′) that is an elastic member that wipes off the surface to be cleaned in aspect 2, and the third blade does not have a notch, and the third blade. The configuration may be such that the blade is arranged at a position aligned with the second blade in the direction opposite to the traveling direction of the first blade.

  According to the above configuration, the liquid left unwiped by the preceding second blade can be wiped by the third blade that proceeds in the same direction in the traveling direction. Therefore, even when there is another convex portion at the position of the preceding second blade, it is possible to prevent unwiping.

  The cleaning device according to aspect 4 of the present invention includes the fourth blade (11a ′) that is an elastic member that wipes the surface to be cleaned in aspects 1 to 3, and the fourth blade extends continuously. A plurality of cuts are provided at positions corresponding to the convex portions, and the fourth blade is arranged at a position aligned with the first blade in a direction opposite to the traveling direction of the first blade. There may be.

  According to said structure, a 4th braid | blade is matched with the shape of a convex part, and the 4th braid | blade provided with the some notch contact | connects a convex part without gap. Therefore, the liquid left to be wiped off by the preceding first blade can be wiped off by the fourth blade having a plurality of cuts that advance in the same direction along the traveling direction. Therefore, it is possible to perform cleaning with less wiping.

  In the cleaning device according to aspect 5 of the present invention, in the aspects 1 to 4, the first blade has a first region where no notch is provided, and the first region is formed on the continuously extending convex portion. The structure which exists in the position corresponding to the said to-be-cleaned surface instead of the corresponding position may be sufficient.

  According to said structure, the to-be-cleaned surface and the periphery of a convex part can be wiped off with a 1st braid | blade. Therefore, the number of parts of the cleaning device can be reduced and efficient wiping can be performed.

  In the cleaning device according to aspect 6 of the present invention, in the aspects 1 to 5, the interval between the plurality of cuts of the first blade may be smaller than the width of the continuously extending convex portion.

  The cleaning device according to aspect 7 of the present invention may be configured such that, in aspects 1 to 6, the first blade is provided with three or more cuts.

  The cleaning device according to aspect 8 of the present invention is the structure according to aspects 1 to 7, wherein the plurality of cuts are perpendicular to the edge of the first blade and reach the edge of the first blade. May be.

  In the cleaning device according to aspect 9 of the present invention, in the aspects 1 to 8, the width of the second region where the plurality of cuts are provided in the first blade is larger than the width of the continuously extending convex portion. It may be a configuration.

  A cleaning device according to an aspect 10 of the present invention is the cleaning apparatus according to the aspect 2, wherein the second blade extends from one end of the surface to be cleaned to the other end, and the second blade protrudes continuously. The structure arrange | positioned in the position which does not respond | correspond to a part may be sufficient.

  In addition, the said embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Further, all modifications within the meaning and scope equivalent to the scope of the claims are included.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be used for cleaning devices and cleaning systems such as solar panels, arcades, general household roofs, and corridors.

10 Cleaning device 11 Blade (second blade)
11a Additional blade (first blade)
11 'Rear blade (third blade)
11a 'Rear additional blade (4th blade)
12 Holding member 13 Motor 14 Tire 15 Guide 16 Tank 17 Pump 18 Piping (Liquid supply part)
19 Nozzle (liquid supply part)
20 Battery 21 Blade (first blade)
22 Notch 100 Photovoltaic power generation device 101 Solar cell module 102 Base 103 Fixing member 104 Frame 104a Lower frame 104b Horizontal frame 104c Upper frame

Claims (5)

A liquid supply unit for supplying a cleaning liquid to the surface to be cleaned;
A first blade that is an elastic member that wipes off the surface to be cleaned;
The first blade is provided with a plurality of cuts at positions corresponding to convex portions protruding from the surface to be cleaned and continuously extending along the traveling direction of the first blade. Characteristic cleaning device. A second blade that is an elastic member, and wipes the surface to be cleaned;
The second blade has no notches,
The cleaning apparatus according to claim 1, wherein the first blade is disposed at a distance from the second blade in a direction opposite to the traveling direction of the first blade. A third blade, which is an elastic member, for wiping the surface to be cleaned;
The third blade has no notches,
The cleaning apparatus according to claim 2, wherein the third blade is disposed at a position aligned with a direction opposite to a traveling direction of the first blade with respect to the second blade. A fourth blade that is an elastic member, and wipes the surface to be cleaned;
The fourth blade is provided with a plurality of cuts at positions corresponding to the continuously extending convex portions,
The said 4th braid | blade is arrange | positioned with respect to the said 1st braid | blade in the position arranged in the reverse direction of the advancing direction of the said 1st braid | blade, The washing | cleaning as described in any one of Claim 1 to 3 characterized by the above-mentioned. apparatus. The first blade has a first region where no cut is provided,
The cleaning apparatus according to any one of claims 1 to 4, wherein the first region is not at a position corresponding to the continuously extending convex portion but at a position corresponding to the surface to be cleaned. .

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