Foreign object buildup prevention device with dual motors and brushes

Abstract

The present invention provides a foreign matter accumulation prevention device having a dual motor and brush that can maximize the cleaning effect through stable power transmission. [Solution] The foreign matter accumulation prevention device of the present invention, having a dual motor and brushes, has a main body that is movable along rails arranged on both sides of the target surface, with a brush section including a first brush shaft and a second brush shaft housed inside. The first drive unit has a first driving motor and a second driving motor housed inside on both sides of the main body to generate the driving force necessary for the movement of the main body, and the second drive unit has a first brush motor and a second brush motor housed inside on both sides of the main body to rotate the first brush shaft and the second brush shaft.

Description

Technical Field

[0001] The present invention relates to a foreign matter accumulation prevention device having a dual motor and a brush, and more particularly, to a foreign matter accumulation prevention device having a dual motor and a brush that can maximize a cleaning effect through stable power transmission.

Background Art

[0002] Photovoltaic power generation is a clean energy source different from existing energy sources that has no risks such as noise and environmental destruction because it does not emit greenhouse gases, which are one of the inducing factors of global warming, during the power generation process.

[0003] And, photovoltaic power generation has the advantages that there is no worry of depletion, and in addition, different from wind power and seawater power, photovoltaic power generation facilities can be freely installed and have low maintenance costs. However, in the case of the most widely used silicone solar cells, when the temperature of the solar module rises, an output reduction of 0.5% occurs per 1°C. In addition, such solar modules have the disadvantage that dirt can easily accumulate due to meteorological phenomena such as yellow sand and bad weather on the solar cell panel. When dirt accumulates on the solar module, the light absorption rate of the solar module drops sharply, so there is a risk that the power generation efficiency will also decrease. In addition, when rain or snow falls on the solar cell panel in winter, there is a risk that the power generation efficiency will decrease.

[0004] To prevent the decrease in power generation efficiency due to such dirt, snow, rain, etc., efficiency improvement equipment for photovoltaic power generation facilities such as Korean Registered Patent No. 10-1680566 (hereinafter, prior art) is used. However, the prior art has problems such as consumption of a large amount of electrical and thermal energy.

[0005] In order to improve the above problems, a device has been developed that transmits the power of a motor to drive wheels on both left and right sides and rotates a brush while reciprocating to clean foreign matter accumulated on a solar module.

[0006] However, in such devices, the motor's power must be transmitted to the drive wheel on the opposite side via a long shaft, which can lead to power imbalance problems. In particular, such devices had the problem that cleaning efficiency decreased if the power transmitted to the brush was insufficient due to the distribution and use of a limited motor power. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Registered Patent No. 10-1680566 of the Republic of Korea [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] The present invention aims to provide a foreign matter accumulation prevention device having a dual motor and brushes that can maximize the cleaning effect through stable power transmission in order to improve the aforementioned problems. [Means for solving the problem]

[0009] To achieve the above objective, the present invention provides a brush section comprising: rails arranged on both sides of the target surface; a main body whose ends are placed on the rail (hereinafter referred to as the first rail) arranged on one side of the target surface and the rail (hereinafter referred to as the second rail) arranged on the other side of the target surface and movable along the first rail and the second rail; a first brush shaft having a first end rotatably supported on one end side of the main body, a second end rotatably supported on the other end side of the main body, and an outer circumferential surface on which a plurality of brush bristles are arranged radially; a second brush shaft having a third end rotatably supported on one end side of the main body, a fourth end rotatably supported on the other end side of the main body, and an outer circumferential surface on which a plurality of brush bristles are arranged radially; and a brush section housed on one end side of the main body, the main body being A foreign matter accumulation prevention device having a dual motor and brushes can be provided, comprising: a first drive unit including a first driving motor that generates a driving force capable of moving along a first rail and a second rail, and a second driving motor housed on the other end of the main body that generates a driving force capable of moving the main body along the first rail and the second rail; and a second drive unit including a first brush motor housed on one end of the main body and connected to the first or second end that generates a driving force to rotate the first brush shaft, and a second brush motor housed on the other end of the main body and connected to the third or fourth end that generates a driving force to rotate the second brush shaft.

[0010] The present invention further includes a power management unit provided on one side of the main body and electrically connected to the first drive unit and the second drive unit, which controls the amount of current and energy used when the first driving motor, the second driving motor, the first brush motor, and the second brush motor are operating simultaneously, wherein the power management unit is capable of controlling the amount of current and energy to be greater than or equal to the amount of current and energy used when the first driving motor, the second driving motor, the first brush motor, and the second brush motor are operating simultaneously.

[0011] In this case, the rail is characterized by having a prismatic rail body having a flat upper surface that contacts a first contact rib made of an elastic material that protrudes radially along the outer circumferential surface of a first drive wheel connected to and rotating with the first driving motor and is arranged perpendicular to the longitudinal direction of the first rail, and at the same time has a flat upper surface that contacts a second contact rib made of an elastic material that protrudes radially along the outer circumferential surface of a second drive wheel connected to and rotating with the second driving motor and is arranged perpendicular to the longitudinal direction of the second rail, and a movable guide groove that is recessed and formed along both sides connected to both side edges of the upper surface of each of the rail bodies.

[0012] Furthermore, the first driving motor and the second driving motor operate simultaneously, or only one of the first driving motor or the second driving motor operates.

[0013] Furthermore, the first driving motor and the second driving motor operate simultaneously, or the first driving motor or the second driving motor moves the pair of rails from the starting point to the ending point, and the second driving motor or the first driving motor returns the pair of rails from the ending point to the starting point.

[0014] Furthermore, the first brush motor and the second brush motor operate simultaneously, or only one of the first brush motor or the second brush motor operates.

[0015] The device further includes a speed control unit provided on one side of the main body and electrically connected to the first drive unit and the second drive unit, which increases or decreases the rpm of the first brush motor and the second brush motor in accordance with the amount of foreign matter on the target surface, while simultaneously increasing or decreasing the rpm of the first driving motor and the second driving motor.

[0016] Furthermore, the first drive unit is characterized by comprising: a first drive shaft built into one end of the main body and rotatably supported by an internal partition wall on one side of the main body (hereinafter referred to as the first partition wall), and simultaneously connected to the first driving motor; a first drive wheel connected to the first drive shaft and having an outer peripheral surface facing the upper surface of the first rail; a plurality of first contact ribs projecting radially along the outer peripheral surface of the first drive wheel, arranged parallel to a virtual line passing through the center of one end and the center of the other end of the main body, and in close contact with the upper surface of the first rail; a second drive shaft built into the other end of the main body and rotatably supported by an internal partition wall on the other side of the main body (hereinafter referred to as the second partition wall), and simultaneously connected to the second driving motor; a second drive wheel connected to the second drive shaft and having an outer peripheral surface facing the upper surface of the second rail; and a plurality of second contact ribs projecting radially along the outer peripheral surface of the second drive wheel, arranged parallel to the virtual line, and in close contact with the upper surface of the second rail.

[0017] Furthermore, the second drive unit further includes a first brush reducer that interconnects the first end of the first brush shaft and the first brush motor, and a second brush reducer that interconnects the fourth end of the second brush shaft and the second brush motor, characterized in that the first brush shaft and the first brush motor are arranged in a straight line, and the second brush shaft and the second brush motor are arranged in a straight line.

[0018] Simultaneously, the system further includes a charging station installed on the starting end side of the first rail or the second rail, which receives power from an external source when the remaining power of the battery built into the main body falls below a set value in accordance with the power consumption associated with the operation of the first drive unit and the second drive unit, by docking as the main body moves. [Effects of the Invention]

[0019] According to the present invention with the configuration described above, the cleaning effect can be maximized through stable power transmission. [Brief explanation of the drawing]

[0020] [Figure 1] The perspective conceptual diagram shows the overall appearance of a foreign object lamination prevention device having a dual motor and a brush according to an embodiment of the present invention. [Figure 2] The plan conceptual diagram shows the overall appearance of a foreign object lamination prevention device having a dual motor and a brush according to an embodiment of the present invention. [Figure 3] The perspective conceptual diagram shows the internal structure of a foreign object lamination prevention device having a dual motor and a brush according to an embodiment of the present invention. [Figure 4] The partial enlarged perspective conceptual diagram shows an enlarged view of part A in FIG. 3. [Figure 5] The partial enlarged perspective conceptual diagram shows an enlarged view of part B in FIG. 3. [Figure 6] The partial enlarged perspective conceptual diagram shows an enlarged view of part C in FIG. 3. [Figure 7] The perspective conceptual diagram shows the internal structure of a foreign object lamination prevention device having a dual motor and a brush according to an embodiment of the present invention from another angle.

Mode for Carrying Out the Invention

[0021] The advantages, features, and the methods for achieving them of the present invention will become clear by referring to the embodiments described in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments described here and can be embodied in other forms. The embodiments introduced here are provided to thoroughly and completely disclose the content and to fully convey the idea of the present invention to those skilled in the art. And the present invention is only defined by the scope of the claims.

[0022] Therefore, in some embodiments, well-known components, well-known operations, and well-known techniques are not specifically described in order to avoid the present invention being ambiguously interpreted.

[0023] Furthermore, throughout this specification, the same reference numerals refer to the same components, and the terms used (referred to) herein are for illustrative purposes only and are not intended to limit the invention.

[0024] In this specification, the singular form includes the plural form unless otherwise specified in the phrase, and the components and actions referred to as "include (or comprise)" do not exclude the presence or addition of one or more other components and actions.

[0025] Unless otherwise defined, all terms used herein (including technical and scientific terms) should be used in a way that is commonly understood by a person with ordinary skill in the art to which this invention pertains. Furthermore, commonly used, predefined terms should not be interpreted ideally or excessively unless otherwise defined. Preferred embodiments of the present invention will be described below with reference to the attached drawings. First, Figure 1 is a perspective conceptual diagram showing the overall appearance of a foreign matter accumulation prevention device having a dual motor and brushes according to one embodiment of the present invention. Figure 2 is a plan view conceptual diagram showing the overall appearance of a foreign matter accumulation prevention device having a dual motor and brush according to one embodiment of the present invention. Figure 3 is a perspective conceptual diagram showing the internal structure of a foreign matter accumulation prevention device having a dual motor and brushes according to one embodiment of the present invention. Figure 4 is a partially enlarged perspective conceptual diagram showing an enlarged view of section A of Figure 3. Figure 5 is a partially enlarged perspective conceptual diagram showing an enlarged view of section B of Figure 3. Furthermore, Figure 6 is a partially enlarged perspective conceptual diagram showing an enlarged view of section C in Figure 3. Figure 7 is a perspective conceptual diagram showing the internal structure of a foreign matter accumulation prevention device having a dual motor and brushes according to one embodiment of the present invention, viewed from a different angle.

[0026] The present invention can be applied to an embodiment in which a main body 200, which houses a brush section 300 including a first brush shaft 310 and a second brush shaft 320, is movable along rails 110 and 120 arranged on both sides of the target surface 600, as shown in Figures 3 to 7, as shown in Figures 1 and 2.

[0027] Herein, the present invention can also be applied to an embodiment in which the first driving motor 410 and the second driving motor 420 of the first drive unit 400 are housed on both sides of the main body 200 to generate the driving force necessary for the movement of the main body, and the first brush motor 510 and the second brush motor 520 of the second drive unit 500 are housed on both sides of the main body 200 to rotate the first brush shaft 310 and the second brush shaft 320. First, the rails are placed on both sides of the target surface 600.

[0028] The main body 200 has both ends resting on a rail (hereinafter referred to as the first rail 110) located on one side of the target surface 600 and a rail (hereinafter referred to as the second rail 120) located on the other side of the target surface 600, and is movable along the first rail 110 and the second rail 120.

[0029] The brush section 300 may include a first end 311 that is rotatably supported on one end of the main body 200, a second end 312 that is rotatably supported on the other end of the main body 200, and a first brush shaft 310 having an outer surface on which a plurality of brush bristles 330 are arranged radially.

[0030] The brush section 300 may include a third end 321 that is rotatably supported on one end of the main body 200, a fourth end 322 that is rotatably supported on the other end of the main body 200, and a second brush shaft 320 having an outer surface on which a plurality of brush bristles 330 are arranged radially.

[0031] The first drive unit 400 may include a first driving motor 410 housed in one end of the main body 200, which generates a driving force that allows the main body 200 to move along the first rail 110 and the second rail 120.

[0032] The first drive unit 400 may include a second driving motor 420 housed inside the other end of the main body 200, which generates a driving force that allows the main body 200 to move along the first rail 110 and the second rail 120.

[0033] The second drive unit 500 may include a first brush motor 510 housed in one end of the main body 200 and connected to the first end 311 or the second end 312, which generates a driving force to rotate the first brush shaft 310.

[0034] The second drive unit 500 may include a second brush motor 520 that is housed inside the other end of the main body 200 and connected to the third end 321 or the fourth end 322, generating a driving force to rotate the second brush shaft 320. The present invention can be applied to the embodiments described above, and of course, it can also be applied to a variety of other embodiments as follows.

[0035] First, the target surface 600 is one of the following: the roof of a building, the concentrating panel of a solar module, the glass surface of a building structure, the sloping roof of a building, or a pedestrian walkway or road on a slope.

[0036] On the other hand, the multiple brush bristles 330 are arranged in a disc shape along the outer circumferential surfaces of the first brush shaft 310 and the first brush shaft 310, and the disc shape can be spaced apart along the outer circumferential surfaces of the first brush shaft 310 and the first brush shaft 310.

[0037] On the other hand, the present invention may further include a power management unit (not shown below) provided on one side of the main body 200 and electrically connected to the first drive unit 400 and the second drive unit 500, which controls the amount of current and power used when the first driving motor 410, the second driving motor 420, the first brush motor 510 and the second brush motor 520 are operating simultaneously.

[0038] Here, the power management unit is capable of controlling the current and energy used by the first driving motor 410, the second driving motor 420, the first brush motor 510, and the second brush motor 520 to be greater than or equal to the current and energy used when they are operating simultaneously.

[0039] At this time, the PCB 290 is designed so that the first driving motor 410 and the second driving motor 420, and the first brush motor 510 and the second brush motor 520 use a 24V power supply. The PCB 290 is designed to transmit forward and reverse rotation switching commands and signals from various sensors to the aforementioned first driving motor 410 and the second driving motor 420, and the first brush motor 510 and the second brush motor 520.

[0040] In the case of solar power plants where the target surface is 600, the area is very large, so the entire device is designed to withstand high currents and can withstand DC currents of 40A or more.

[0041] Although the actual current used when driving the first driving motor 410 and the second driving motor 420, and the first brush motor 510 and the second brush motor 520 is approximately 20A at most, the motors are designed to withstand DC currents of 40A or more, taking into account the various variables that occur when each motor is driven. On the other hand, the rail may include the rail body and the moving guide groove 130.

[0042] Here, the rail body has a flat upper surface that contacts first contact ribs 4011 made of elastic material, which protrude radially along the outer surface of the first drive wheel 401 that is connected to and rotates the first driving motor 410 and are arranged perpendicular to the longitudinal direction of the first rail 110.

[0043] At this time, the rail body is formed in a prismatic shape with a flat upper surface that contacts the second contact rib 4021 made of elastic material, which protrudes radially along the outer surface of the second drive wheel 402 that is connected to and rotates the second drive motor 420 and is arranged perpendicular to the longitudinal direction of the second rail 120. The moving guide grooves 130 are formed by recessing along both sides that are connected to both side edges of the upper surface of each of the rail bodies.

[0044] On the other hand, the first driving motor 410 and the second driving motor 420 may operate simultaneously, or only one of the first driving motor 410 or the second driving motor 420 may operate.

[0045] The first driving motor 410 and the second driving motor 420 can operate simultaneously, or the first driving motor 410 or the second driving motor 420 can move the pair of rails from the start to the end, and the second driving motor 420 or the first driving motor 410 can return the pair of rails from the end to the start.

[0046] Furthermore, the first brush motor 510 and the second brush motor 520 may operate simultaneously, or only one of the first brush motor 510 or the second brush motor 520 may operate.

[0047] On the other hand, a speed control unit (not shown below) is further provided on one side of the main body 200 and is electrically connected to the first drive unit 400 and the second drive unit 500. This unit can increase or decrease the rpm of the first brush motor 510 and the second brush motor 520 according to the amount of foreign matter on the target surface 600, and at the same time increase or decrease the rpm of the first driving motor 410 and the second driving motor 420.

[0048] On the other hand, the first drive unit 400 may further include a first drive shaft 430 which is built into one end of the main body 200 and is rotatably supported by an internal partition wall (hereinafter referred to as the first partition wall 211) on one side of the main body 200, and is also connected to the first driving motor 410.

[0049] Furthermore, the first drive unit 400 may further include a first drive wheel 401 connected to the first drive shaft 430 and having an outer circumferential surface facing the upper surface of the first rail 110.

[0050] Furthermore, the first drive unit 400 may further include a plurality of first contact ribs 4011 that protrude radially along the outer circumferential surface of the first drive wheel 401, are arranged parallel to imaginary lines that penetrate the center of one end and the center of the other end of the main body 200, and are in close contact with the upper surface of the first rail 110.

[0051] Furthermore, the first drive unit 400 may further include a second drive shaft 440 which is built into the other end of the main body 200 and is rotatably supported by an internal partition wall (hereinafter referred to as the second partition wall 221) on the other side of the main body 200, while simultaneously being connected to the second driving motor 420.

[0052] Furthermore, the first drive unit 400 may further include a second drive wheel 402 connected to the second drive shaft 440 and having an outer circumferential surface facing the upper surface of the second rail 120.

[0053] Furthermore, the first drive unit 400 may further include a plurality of second contact ribs 4021 that protrude radially along the outer circumferential surface of the second drive wheel 402, are arranged parallel to the imaginary line, and are in close contact with the upper surface of the second rail 120. On the other hand, the first drive unit 400 may further include a first driving reduction gear 411 that interconnects the first drive shaft 430 and the first driving motor 410. Furthermore, the first drive unit 400 may further include a second driving reduction gear 421 that interconnects the second drive shaft 440 and the second driving motor 420. The first drive unit 400 may further include a first driven shaft 403 that is rotatably supported by the first bulkhead 211.

[0054] Furthermore, the first drive unit 400 may further include a first driven wheel 405 through which the first driven shaft 403 passes through the center and which has an outer peripheral surface facing the upper surface of the first rail 110, and which is simultaneously arranged in a straight line with the first drive wheel 401.

[0055] Furthermore, the first drive unit 400 may further include a plurality of third contact ribs 4051 that protrude radially along the outer circumferential surface of the first driven wheel 405, are arranged parallel to the imaginary line, and are in close contact with the upper surface of the first rail 110. The first drive unit 400 may further include a second driven shaft 404 that is rotatably supported by the second bulkhead 221.

[0056] Furthermore, the first drive unit 400 may further include a second driven wheel 406 through which the second driven shaft 404 passes through the center and which has an outer peripheral surface facing the upper surface of the second rail 120, and which is simultaneously arranged in a straight line with the second drive wheel 402.

[0057] The first drive unit 400 may further include a plurality of fourth contact ribs 4061 that project radially along the outer circumferential surface of the second driven wheel 406, are arranged parallel to the imaginary line, and are in close contact with the upper surface of the second rail 120.

[0058] Furthermore, the first drive unit 400 may further include a first stepped drive wheel 407 through which the first drive shaft 430 passes, and which protrudes from the center of the first drive wheel 401 at a step and has an outer peripheral surface facing the upper surface of the first rail 110.

[0059] The first drive unit 400 may further include a first drive gear 4071, which is composed of a plurality of gears that protrude radially along the outer circumferential surface of the first stepped drive wheel 407 and are arranged parallel to a virtual line.

[0060] Furthermore, the first drive unit 400 may further include a first stepped driven wheel 4052 through which the first driven shaft 403 passes, protruding from the center of the first driven wheel 405 at a step, and having an outer peripheral surface facing the upper surface of the first rail 110.

[0061] The first drive unit 400 may further include a first driven gear 4053, which is composed of a plurality of gears that protrude radially along the outer circumferential surface of the first stepped driven wheel 4052 and are arranged parallel to a virtual line.

[0062] Furthermore, the first drive unit 400 may further include a second stepped drive wheel 408 through which the second drive shaft 440 passes, protruding from the center of the second drive wheel 402 at a step, and having an outer peripheral surface facing the upper surface of the second rail 120.

[0063] The first drive unit 400 may further include a second drive gear 4081, which is composed of a plurality of gears that protrude radially along the outer circumferential surface of the second stepped drive wheel 408 and are arranged parallel to a virtual line.

[0064] Furthermore, the first drive unit 400 may further include a second stepped driven wheel 4062 through which the second driven shaft 404 passes, protruding from the center of the second driven wheel 406 at a step, and having an outer peripheral surface facing the upper surface of the second rail 120.

[0065] The first drive unit 400 may further include a second driven gear 4063, which is composed of a plurality of gears that protrude radially along the outer circumferential surface of the second stepped driven wheel 4062 and are arranged parallel to a virtual line.

[0066] The first drive unit 400 may further include a first timing belt 4091, which has gears formed along its inner circumferential surface that mesh with the gears of the first drive gear 4071 and the first driven gear 4053, and which transmits the driving force generated from the first driving motor 410 through the first differential drive wheel to the first differential driven wheel 4052.

[0067] The first drive unit 400 may further include a second timing belt 4092, which has gears formed along its inner circumferential surface that mesh with the gears of the second drive gear 4081 and the second driven gear 4063, and which transmits the driving force generated from the second drive motor 420 through the second stepped drive wheel 408 to the second stepped driven wheel 4062.

[0068] Furthermore, the first drive unit 400 may further include a first roll support bar 451 which has both end faces fixed to the outer surface of one end of the main body 200 facing the first bulkhead 211, and a lower surface facing the upper surface of the first rail 110, and is positioned on the starting point side of the first rail 110 while being built into the main body 200.

[0069] Furthermore, the first drive unit 400 may further include a second roll support bar 452 having both end faces fixed to the outer surface of one end of the main body 200 facing the first bulkhead 211, and a lower surface facing the upper surface of the first rail 110, positioned on the terminal side of the first rail 110 and built into the main body 200, with the first drive wheel 401 and the first driven wheel 405 positioned between it and the first roll support bar 451.

[0070] The first drive unit 400 may further include a first roll support shaft 453 that penetrates and is rotatably supported from both ends of the upper surfaces of the first roll support bar 451 and the second roll support bar 452, respectively, while simultaneously having an outer peripheral surface facing both sides of the first rail 110.

[0071] The first drive unit 400 may further include a first guide roll 454 having an outer surface facing the movable guide groove 130 which is recessed and formed along both sides of the first rail 110, and which is rotatably supported by the first roll support shaft 453. The first drive unit 400 may further include a first roll rib 4541 that protrudes from the outer circumferential surface of the first guide roll 454 and is guided into the movable guide groove 130.

[0072] Furthermore, the first drive unit 400 may further include a third roll support bar 455 having both end faces fixed to the outer surface of the other end of the main body 200 facing the second bulkhead 221, and a lower surface facing the upper surface of the second rail 120, positioned on the starting point side of the second rail 120 and simultaneously built into the main body 200.

[0073] Furthermore, the first drive unit 400 may further include a fourth roll support bar 456 having both end faces fixed to the outer surface of the other end of the main body 200 facing the second bulkhead 221, and a lower surface facing the upper surface of the second rail 120, positioned on the terminal side of the second rail 120 and built into the main body 200, with the second drive wheel 402 and the second driven wheel 406 positioned between it and the third roll support bar 455.

[0074] The first drive unit 400 may further include a second roll support shaft 457 that is rotatably supported by passing through both ends of the upper surfaces of the third roll support bar 455 and the fourth roll support bar 456, respectively, and has an outer peripheral surface facing both sides of the second rail 120.

[0075] The first drive unit 400 may further include a second guide roll 458 that has an outer surface facing the movable guide grooves 130 formed by recessing along both sides of the second rail 120, and is rotatably supported by the second roll support shaft 457. Furthermore, the first drive unit 400 may further include a second roll rib 4581 that protrudes from the outer circumferential surface of the second guide roll 458 and is guided into the movable guide groove 130. The first drive unit 400 may further include a first support bracket 461 that is attached to the outer surface of one end of the first bulkhead 211 or the main body 200.

[0076] The first drive unit 400 may further include a first tension roller 4611 that is height-adjustably mounted on a first support bracket 461 and has an outer surface that can contact the outer surface of the first timing belt 4091. The first drive unit 400 may further include a second support bracket 462 that is attached to the outer surface of the second bulkhead 221 or the other end of the main body 200.

[0077] The first drive unit 400 may further include a second tension roller 4621 that is height-adjustably mounted on a second support bracket 462 and has an outer surface that can contact the outer surface of the second timing belt 4092.

[0078] The first drive unit 400 may further include a first switch body 471 that is built into the main body 200 and positioned on the starting end side of the first rail 110 or the second rail 120. The first drive unit 400 may further include a first limit switch 4711 which is rotatably coupled to the first switch body 471. Furthermore, the first drive unit 400 may further include a second switch body 472 which is built into the main body 200 and positioned on the end end side of the rail. The first drive unit 400 may further include a second limit switch 4721 that is rotatably coupled to the second switch body 472.

[0079] On the other hand, the second drive unit 500 may further include a first brush reducer 511 that interconnects the first end 311 of the first brush shaft 310 and the first brush motor 510.

[0080] The second drive unit 500 may further include a second brush reducer 521 that interconnects the fourth end 322 of the second brush shaft 320 with the second brush motor 520.

[0081] Here, the first brush shaft 310 and the first brush motor 510 can be arranged in a straight line, and the second brush shaft 320 and the second brush motor 520 can be arranged in a straight line.

[0082] On the other hand, a charging station 700 is installed on the starting end side of the first rail 110 or the second rail 120, and when the remaining power of the storage battery (not shown below) built into the main unit 200 falls below a set value in accordance with the power consumption associated with the operation of the first drive unit 400 and the second drive unit 500, power can be supplied from an external source by docking as the main unit 200 moves.

[0083] Such a charging station 700 may include a docking stand 701 that protrudes from the upper surface of the starting end of the first rail 110 or the second rail 120 and is electrically connected to an external power source.

[0084] Furthermore, the charging station 700 may include a docking guide bar 702 that bends and extends from the upper end of the docking stand 701 toward the main unit 200. Furthermore, the charging station 700 may include a rechargeable battery built into the main unit 200.

[0085] The charging station 700 is electrically connected to the battery and built into the main unit 200, and may include a pair of docking pins 703 that are aligned in a straight line with the docking guide bar 702.

[0086] Furthermore, the charging station 700 may include a docking terminal (not shown below) that is recessed from the end surface of the docking guide bar 702 and engages with a pair of docking pins 703 to receive the tip of the docking guide bar 702 connected to the upper end of the docking stand 701, thereby electrically connecting to an external power supply.

[0087] Furthermore, the charging station 700 may include a docking slot 704 (see Figure 1(b) below) that penetrates one side of the main unit 200 and allows the docking guide bar 702 to move in and out. The charging station 700 may include a door bracket 7041 that is attached to one side of the main unit 200 and built into the main unit 200.

[0088] The charging station 700 may also include a door panel 7042 that is rotatably connected to a door bracket 7041 and opens and closes a docking slot 704.

[0089] The charging station 700 may also include a torsion spring 7043 (see Figure 7 below) which is connected to a hinge that rotatably connects the door bracket 7041 and the door panel 7042, and generates an elastic force in the direction that the door panel 7042 blocks the docking slot 704.

[0090] Furthermore, the charging station 700 may include an upper roll support shaft 711 having both ends that are coupled to the outer surface of one end of the first bulkhead 211 and the main body 200, or to the outer surface of the other end of the second bulkhead 221 and the main body 200, and having an outer surface that faces the upper surface of the docking guide bar 702.

[0091] Furthermore, the charging station 700 may include a lower roll support shaft 712 having both ends that are connected to the outer surface of one end of the first bulkhead 211 and the main body 200, or to the outer surface of the other end of the second bulkhead 221 and the main body 200, and having an outer surface that faces the lower surface of the docking guide bar 702.

[0092] Furthermore, the charging station 700 may include a side roll support shaft 713 that connects both ends of the upper roll support shaft 711 and the lower roll support shaft 712 and has an outer surface facing both sides of the docking guide bar 702.

[0093] The charging station 700 may also include a cylindrical upper guide roll 721 that is rotatably coupled to the upper roll support shaft 711 and rolls into contact with the upper surface of the docking guide bar 702 as the main body 200 moves and the docking guide bar 702 enters the interior of the main body 200.

[0094] The charging station 700 may also include a cylindrical lower guide roll 722 that is rotatably coupled to the lower roll support shaft 712 and rolls into contact with the lower surface of the docking guide bar 702 as the main body 200 moves and the docking guide bar 702 enters the interior of the main body 200.

[0095] The charging station 700 may also include cylindrical side guide rolls 723 that are rotatably connected to the side roll support shafts 713 and roll into contact with both sides of the docking guide bar 702 as the main body 200 moves and the docking guide bar 702 enters the interior of the main body 200.

[0096] On the other hand, the main body 200 may further include a pair of horizontal bars 201 arranged in directions perpendicular to the first rail 110 and the second rail 120, and at least one or more vertical bars 202 connecting the pair of horizontal bars 201 to each other.

[0097] The main body 200 may further include a first side panel 210 that is spaced apart from and facing the first partition wall 211 to which one end of each of the pair of horizontal bars 201 is fixed, and which forms one end surface of the main body 200.

[0098] Furthermore, the main body 200 may further include a second side panel 220 that is spaced apart from and facing a second partition wall 221 to which the other ends of each of the pair of horizontal bars 201 are fixed, and which forms the other end surface of the main body 200.

[0099] Furthermore, the main body 200 may further include a first upper panel 230 that interconnects the edges of the upper ends of the first side panel 210 and the first partition wall 211, and forms the upper surface on one end side of the main body 200.

[0100] Furthermore, the main body 200 may further include a second upper panel 240 that interconnects the edges of the upper ends of the second side panel 220 and the second partition wall 221, thereby forming the upper surface of the other end of the main body 200.

[0101] Furthermore, the main body 200 may further include a first side panel 250 that interconnects the edges at both ends of the first top panel 230 with the edges at both ends of the first side panel 210 and the first partition wall 211, thereby forming the front and rear surfaces of one end of the main body 200.

[0102] Furthermore, the main body 200 may further include a second side panel 260 that interconnects the edges at both ends of the second top panel 240 with the edges at both ends of the second side panel 220 and the second partition wall 221, thereby forming the front and rear surfaces of the other end of the main body 200.

[0103] The main body 200 may further include a plurality of main top panels 270 that are mounted to cover the top surfaces of each of the pair of horizontal bars 201 and are positioned between the first top panel 230 and the second top panel 240, forming the top surface of the main body 200.

[0104] The main body 200 may further include a plurality of flat plate-shaped support pieces 203, each having an upper end that is connected to the front and rear sides of each of the pair of horizontal bars 201, and arranged at intervals along the front and rear sides of each of the pair of horizontal bars 201. Furthermore, the main body 200 may include elongated adjustment slots 2031 formed in the vertical direction at the lower end of each of the support pieces 203. The main body 200 may further include a main support bracket 204 that is mounted in an adjustment slot 2031 in a height-adjustable manner by fasteners. Furthermore, the main body 200 may include a main installation groove 2041 that is formed in a concave shape on the upper side along the lower end surface of the main support bracket 204. The main body 200 may further include a cylindrical main fixing rib 205 that is inserted into and joined to the main installation groove 2041.

[0105] Furthermore, the main body 200 may further include a flat-plate shaped main wiper 206 that extends from the outer circumferential surface of the main fixing rib 205 toward the target surface 600 and allows for elastic deformation and recovery.

[0106] The main body 200 may further include sub-support brackets 251 and 261, which are attached to the first side panel 250 and the second side panel 260, respectively, and are positioned in a straight line with the main support bracket 204.

[0107] Furthermore, the main body 200 may include auxiliary installation grooves 2511, 2611 formed in a concave shape on the upper side along the lower end surfaces of the sub-support brackets 251, 261. The main body 200 may further include cylindrical auxiliary fixing ribs 2512, 2612 that are inserted into and joined to the auxiliary installation grooves 2511, 2611.

[0108] Furthermore, the main body 200 may further include flat plate-shaped auxiliary wipers 2513, 2613 that extend from the outer circumferential surfaces of the auxiliary fixing ribs 2512, 2612 toward the target surface 600 and allow for elastic deformation and recovery. The main body 200 may further include a wheel support bracket 281 having an upper end that is connected to at least one or more vertical bars 202.

[0109] The main body 200 may further include an idler wheel 280 rotatably coupled to a wheel support bracket 281 and having the same diameter as the first drive wheel 401 and the second drive wheel 402.

[0110] Furthermore, the main body 200 may include a plurality of idler contact ribs 282 that protrude radially along the outer circumferential surface of the idler wheel 280, are arranged parallel to the imaginary line, and are in close contact with the target surface 600. Here, the docking slot 704 can be formed in the first side panel 250 or the second side panel 260.

[0111] At this time, the upper roll support shaft 711 and the lower roll support shaft 712 can be fixed at both ends to the first bulkhead 211 and the first side panel 210, or at both ends to the second bulkhead 221 and the second side panel 220.

[0112] The PCB 290, which contains the aforementioned power management unit and speed management unit, as well as the chipset and various sensors, and the battery can be housed in the space between the first partition wall 211 and the first side panel 210, or in the space between the second partition wall 221 and the second side panel 220.

[0113] As described above, the basic technical concept of the present invention is to provide a foreign matter accumulation prevention device having a dual motor and brush that can maximize the cleaning effect through stable power transmission. Furthermore, it goes without saying that many other modifications and applications are possible for those with common industry knowledge within the scope of the fundamental technical concept of this invention. [Explanation of Symbols]

[0114] 110: First rail, 120: Second rail, 130: Movement guide groove, 200: Main body, 201: Horizontal bar, 202: Vertical bar, 203: Support piece, 2031: Adjustment slot, 204: Main support bracket, 2041: Main installation groove, 205: Main fixing rib, 206: Main wiper, 210: First side panel, 211: First bulkhead, 220: 221: Second side panel, 230: Second bulkhead, 240: First top panel, 250: First lateral panel, 251: Sub-support bracket, 2511: Auxiliary mounting groove, 2512: Auxiliary fixing rib, 2513: Auxiliary wiper, 260: Second lateral panel, 261: Sub-support bracket, 2611: Auxiliary mounting groove, 2612: Auxiliary fixing rib, 2613: Auxiliary wiper, 270: Main top panel, 280: Idler wheel, 28 1: Wheel support bracket, 282: Idler contact rib, 290: PCB, 300: Brush section, 310: First brush shaft, 311: First end, 312: Second end, 320: Second brush shaft, 321: Third end, 322: Fourth end, 330: Brush bristles, 400: First drive unit, 401: First drive wheel, 4011: First contact rib, 402: Second drive wheel, 4021: Second contact rib, 403: First driven shaft, 404: Second driven shaft, 405: First driven wheel, 4051: Third tight rib, 4052: First stepped driven wheel, 4053: First driven gear, 406: Second driven wheel, 4061: Fourth tight rib, 4062: Second stepped driven wheel, 4063: Second driven gear, 407: First stepped drive wheel, 4071: First drive gear, 408: Second stepped drive wheel, 4081: Second drive gear, 4091: First timing belt, 4092: Second timing belt, 410: First driving motor, 411: First driving reducer, 420: Second driving motor, 421: Second driving reducer, 430: First drive shaft, 440: Second drive shaft, 451: First roll support bar, 452: Second roll support bar, 453: First roll support shaft, 454: First guide roll, 4541: First roll rib, 455: Third roll support bar, 456: Fourth roll support bar, 457: Second roll support shaft, 458: Second guide roll, 4581: Second roll rib, 461: First support bracket, 4611: First tension roller, 462: Second support bracket, 4621: Second tension roller, 471: First switch body, 4711: First limit switch, 472: Second switch body, 4721: Second limit switch, 500: Second drive unit, 510: First brush motor, 511: First brush reducer, 520: Second brush motor, 521 : Second brush reducer, 600: Target surface, 700: Charging station, 701: Docking stand, 702: Docking guide bar, 703: Docking pin, 704: Docking slot, 7041: Door bracket, 7042: Door panel, 7043: Torsion spring, 711: Upper roll support shaft, 712: Lower roll support shaft, 713: Side roll support shaft, 721: Upper guide roll, 722: Lower guide roll, 723: Side guide roll

Claims

1. Rails are positioned on both sides of the target surface, A main body having both ends resting on the rail (hereinafter referred to as the first rail) positioned on one side of the target surface and the rail (hereinafter referred to as the second rail) positioned on the other side of the target surface, and being movable along the first rail and the second rail, A brush section comprising: a first brush shaft having a first end rotatably supported on one end of the main body, a second end rotatably supported on the other end of the main body, and an outer circumferential surface on which a plurality of brush bristles are arranged radially; and a second brush shaft having a third end rotatably supported on one end of the main body, a fourth end rotatably supported on the other end of the main body, and an outer circumferential surface on which a plurality of brush bristles are arranged radially; A first drive unit comprising: a first driving motor housed in one end of the main body and generating a driving force that allows the main body to move along the first rail and the second rail; and a second driving motor housed in the other end of the main body and generating a driving force that allows the main body to move along the first rail and the second rail; A second drive unit includes a first brush motor housed in one end of the main body and connected to the first or second end to generate a driving force for rotating the first brush shaft, and a second brush motor housed in the other end of the main body and connected to the third or fourth end to generate a driving force for rotating the second brush shaft, A foreign matter accumulation prevention device having a dual motor and brushes, characterized by including the following:

2. The system further includes a power management unit provided on one side of the main body and electrically connected to the first drive unit and the second drive unit, which controls the amount of current and power used when the first driving motor, the second driving motor, the first brush motor, and the second brush motor are operating simultaneously. The aforementioned power management unit, The foreign matter accumulation prevention device having a dual motor and brushes according to claim 1, characterized in that it is possible to control the current and power amount to be greater than or equal to the current and power amount used when the first driving motor, the second driving motor, the first brush motor, and the second brush motor are operating simultaneously.

3. The aforementioned rail is A rectangular prism-shaped rail body having a flat upper surface that contacts a first contact rib made of elastic material, which protrudes radially along the outer circumferential surface of the first drive wheel connected to the first driving motor and rotates, and is arranged perpendicular to the longitudinal direction of the first rail, and at the same time has a flat upper surface that contacts a second contact rib made of elastic material, which protrudes radially along the outer circumferential surface of the second drive wheel connected to the second driving motor and rotates, and is arranged perpendicular to the longitudinal direction of the second rail, The foreign matter accumulation prevention device having a dual motor and brush according to claim 1, characterized in that it includes movable guide grooves formed by recessing along both sides connected to both side edges of the upper surface of each of the rail bodies.

4. The foreign matter accumulation prevention device having a dual motor and brush according to claim 1, characterized in that the first driving motor and the second driving motor operate simultaneously, or only one of the first driving motor or the second driving motor operates.

5. The foreign matter accumulation prevention device having a dual motor and brush according to claim 1, characterized in that the first driving motor and the second driving motor operate simultaneously, or the first driving motor or the second driving motor moves the pair of rails from the starting point to the ending point, and the second driving motor or the first driving motor returns the pair of rails from the ending point to the starting point.

6. The foreign matter accumulation prevention device having a dual motor and brushes according to claim 1, characterized in that the first brush motor and the second brush motor operate simultaneously, or only one of the first brush motor or the second brush motor operates.

7. The foreign matter accumulation prevention device having a dual motor and brushes according to claim 1, further comprising a speed control unit provided on one side of the main body and electrically connected to the first drive unit and the second drive unit, which increases or decreases the rpm of the first brush motor and the second brush motor in accordance with the amount of foreign matter on the target surface, and simultaneously increases or decreases the rpm of the first driving motor and the second driving motor.

8. The first drive unit is, A first drive shaft is built into one end of the main body and is rotatably supported by an internal partition wall on one side of the main body (hereinafter referred to as the first partition wall), and is simultaneously connected to the first driving motor. A first drive wheel connected to the first drive shaft and having an outer circumferential surface facing the upper surface of the first rail, A plurality of first contact ribs are provided, which protrude radially along the outer circumferential surface of the first drive wheel, are arranged parallel to a virtual line passing through the center of one end and the center of the other end of the main body, and are in close contact with the upper surface of the first rail, A second drive shaft is built into the other end of the main body and is rotatably supported by the internal partition wall on the other side of the main body (hereinafter referred to as the second partition wall), and is connected to the second driving motor. A second drive wheel connected to the second drive shaft and having an outer peripheral surface facing the upper surface of the second rail, The foreign matter accumulation prevention device having a dual motor and brush according to claim 1, further comprising a plurality of second contact ribs that protrude radially along the outer circumferential surface of the second drive wheel, are arranged parallel to the imaginary line, and are in close contact with the upper surface of the second rail.

9. The second drive unit is, A first brush reducer interconnects the first end of the first brush shaft and the first brush motor, The present invention further includes a second brush reducer that interconnects the fourth end of the second brush shaft with the second brush motor, The first brush shaft and the first brush motor are arranged in a straight line. The foreign matter accumulation prevention device having a dual motor and brush according to claim 1, characterized in that the second brush shaft and the second brush motor are arranged in a straight line.

10. The foreign object stacking prevention device having a dual motor and brush according to claim 1, further comprising a charging station installed on the starting side of the first rail or the second rail, wherein when the remaining power of the storage battery built into the main body falls below a set value in accordance with the power consumption associated with the operation of the first drive unit and the second drive unit, power is supplied from the outside by docking as the main body moves.

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