Window cleaning device

Abstract

The present invention relates to a window cleaning device. The window cleaning device of one embodiment of the present disclosure includes a frame which is movably installed in a window frame, a main body which is movably installed in the frame and is used to clean a window, a first moving device which moves the main body in a vertical direction, and a second moving device which moves the main body and the frame in a horizontal direction, the second moving device including a driving gear and a driving motor which rotates the driving gear, the main body and the frame being moved to the left or right as the driving motor rotates.

Description

Technical Field

[0001] This disclosure relates to window cleaning apparatus, and more specifically, to window cleaning apparatus for cleaning the exterior surfaces of windows. Background Technology

[0002] Under normal circumstances, the exterior surfaces of windows, which are installed on the walls of buildings, are difficult to clean. Therefore, if left unattended, they are easily contaminated by external dust, pollution, and other factors, which can lead to a decrease in the amount of light passing through the windows.

[0003] To clean the exterior surfaces of the windows, you can hire another professional company, but this will incur periodic costs.

[0004] A previous Korean patent, KR10-1654876B1, disclosed a window cleaning device. However, such a device requires direct use by a person indoors, which is inconvenient. Furthermore, it is difficult to clean the entire exterior surface of a window when using such a device indoors.

[0005] Furthermore, a guide rail type window cleaner that cleans windows while moving up and down was disclosed in the previous Korean patent KR10-2637716B1. However, the disclosed document only disclosed a structure that is fixed to a specific window and moves in the up and down direction, thus having the problem of not being able to clean multiple windows or properly cleaning windows of various shapes. Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] The purpose of this disclosure is to resolve the above-mentioned problems and other issues.

[0008] The purpose of this disclosure is to provide a window cleaning device for cleaning foreign objects adhering to the outer surface of a window.

[0009] The purpose of this disclosure is to provide a window cleaning device that can clean windows while moving in both the left-right and up-down directions.

[0010] The purpose of this disclosure is to provide a window cleaning device in which the frame and main body, which are movably mounted on a window frame, can move to the left or right. Specifically, it provides a window cleaning device that allows the entire frame to move left and right, and to move up and down within the frame.

[0011] The purpose of this disclosure is to provide a window cleaning device capable of cleaning multiple windows and windows of various sizes and shapes.

[0012] The purpose of this disclosure is to provide a window cleaning device that can be safely moved.

[0013] Methods for solving problems

[0014] The window cleaning device of this disclosure can move in the vertical and horizontal directions and can clean windows of various sizes and shapes.

[0015] In the window cleaning device of the embodiments of this disclosure, the frame and main body that are movably mounted on the window frame can move to the left or right.

[0016] In the window cleaning device of the present disclosure, when the main body is in the preset correct position, the main body can be moved in the left and right direction, thereby preventing drive failure and accidents and improving reliability.

[0017] One embodiment of the window cleaning device disclosed herein includes: a frame movably mounted on a window frame; a body movably mounted on the frame and used for cleaning the window; and a moving device that moves the body and the frame, the moving device including a drive gear and a drive motor that rotates the drive gear, wherein the body and the frame move to the left or right according to the rotation of the drive motor.

[0018] One embodiment of the window cleaning device disclosed herein includes: a frame movably mounted on a window frame; a main body movably mounted on the frame and used for cleaning the window; a first moving device for moving the main body in a vertical direction; and a second moving device for moving the main body and the frame in a horizontal direction.

[0019] The second moving device includes a drive gear and a drive motor that rotates the drive gear.

[0020] As the aforementioned drive motor rotates, the aforementioned main body and the aforementioned frame move to the left or right.

[0021] A gear module is configured in the lower frame of the aforementioned frame.

[0022] The gear module described above may include a frame gear corresponding to the drive gear described above.

[0023] The aforementioned drive gear meshes with the aforementioned frame gear, and when the aforementioned drive motor rotates, the aforementioned main body and the aforementioned frame can move according to the rotation direction of the aforementioned drive motor.

[0024] The gear module may include a frame moving roller connected to the frame gear.

[0025] The aforementioned frame moving rollers may include recesses in the window frame for insertion into the aforementioned window.

[0026] The gear module may include a frame guide roller located below the frame moving roller.

[0027] The aforementioned frame guide rollers can contact the side of the window frame inserted into the aforementioned recess.

[0028] The aforementioned frame gear includes two or more gears, which can be arranged symmetrically with the aforementioned drive gear as the center.

[0029] The second moving device may further include a reduction gear connected to the drive gear.

[0030] When the main body is in the preset correct position, the second moving device moves the main body in the left and right direction.

[0031] The correct position mentioned above can be the lowest position in the area where the main body can move vertically.

[0032] The second moving device may further include a micro switch that senses whether the main body is in the correct position.

[0033] The window cleaning device may also include an ultrasonic sensor that emits sound waves toward the window.

[0034] The window cleaning device may also include a control unit that determines the distance to the window based on the measurements from the ultrasonic sensor.

[0035] The control unit can determine the position of the middle window and the left and right windows of the middle window based on the measurement values ​​of the ultrasonic sensor.

[0036] The window cleaning device may also include a current sensor that measures the current of the drive motor.

[0037] The control unit can determine whether the main body is located at the left or right end points based on the measurement value of the current sensor.

[0038] The window cleaning device may also include a speed sensor that measures the rotational speed of the drive motor.

[0039] The control unit can determine whether the main body can move based on the measurement value of the speed sensor.

[0040] One embodiment of the window cleaning device disclosed herein includes: a frame movably mounted on a window frame; a main body movably mounted on the frame and used for cleaning the window; a first moving device for moving the main body in a vertical direction; a second moving device for moving the main body and the frame in a horizontal direction; and a control unit, wherein the second moving device includes a drive gear and a drive motor for rotating the drive gear, and the control unit rotates the drive motor to control the movement of the main body and the frame to the left or right.

[0041] One embodiment of the window cleaning device disclosed herein includes: a frame movably mounted on a window frame; a main body movably mounted on the frame and used for cleaning the window; a moving device for moving the main body and the frame; and a control unit, the moving device including a drive gear and a drive motor for rotating the drive gear, the control unit rotating the drive motor to control the movement of the main body and the frame to the left or right.

[0042] Invention Effects

[0043] According to at least one embodiment of this disclosure, the outer surface of a window can be cleaned automatically. It also has the advantage of maintaining the outer surface of the window in a clean state.

[0044] According to at least one embodiment of the present disclosure, it can be moved in the vertical and horizontal directions, thereby enabling the cleaning of windows of various sizes and shapes using a single window cleaning device.

[0045] According to at least one embodiment of this disclosure, the gear status is confirmed and the body is moved in the left-right direction, thereby preventing drive failure and accidents and improving reliability.

[0046] According to at least one embodiment of this disclosure, when the body is in a preset correct position, the body is moved in the left-right direction, thereby preventing drive failure and accidents and improving reliability.

[0047] The effects of this disclosure are not limited to those mentioned above, and those skilled in the art will clearly understand from the claims that other effects not mentioned herein will be apparent. Attached Figure Description

[0048] Figure 1 This is a diagram showing the state in which a window cleaning device according to an embodiment of the present disclosure is configured in a window frame.

[0049] Figure 2 This is a perspective view of a window cleaning device according to an embodiment of the present disclosure.

[0050] Figure 3 This is a perspective view of the framework of one embodiment of the present disclosure.

[0051] Figure 4 This is a perspective view of one side of the main body of an embodiment of this disclosure.

[0052] Figure 5 This is a perspective view of the main body of an embodiment of this disclosure from another side.

[0053] Figure 6 It shows that Figure 5 A diagram of a cross-section cut off from one side.

[0054] Figure 7 This is a diagram illustrating the components disposed inside a housing in one embodiment of the present disclosure.

[0055] Figure 8 This is a diagram with one side cut off for the purpose of illustrating the internal flow path and fan of a cleaning module according to an embodiment of the present disclosure.

[0056] Figure 9 This is a side cross-sectional view used to illustrate the components in front of the cleaning module according to an embodiment of the present disclosure.

[0057] Figure 10 This is a diagram illustrating the structure of a body connected to a guide rail according to an embodiment of this disclosure.

[0058] Figure 11 This is a diagram illustrating a gear module and a drive gear according to an embodiment of the present disclosure.

[0059] Figure 12 This is a diagram used to illustrate the state in which the main body of an embodiment of this disclosure moves upward.

[0060] Figure 13 This is a diagram used to illustrate the state of the main body and frame moving left and right in an embodiment of this disclosure.

[0061] Figure 14 This is a perspective view used to illustrate a cleaning module and a module moving device according to an embodiment of the present disclosure.

[0062] Figure 15 This is a side cross-sectional view used to illustrate the pressure sensor and related components of a cleaning module configured in one embodiment of the present disclosure.

[0063] Figure 16 This is a diagram illustrating the configuration of a cleaning module for the operation of a module device based on an embodiment of the present disclosure. (a) shows the cleaning module moving backward, and (b) shows the cleaning module moving forward.

[0064] Figure 17This is a block diagram of a window cleaning device according to an embodiment of the present disclosure.

[0065] Figure 18 This is a schematic diagram of a gear module and a drive module for moving in a left-right direction, according to an embodiment of the present disclosure.

[0066] Figure 19 This is a perspective view of a gear module according to an embodiment of the present disclosure.

[0067] Figure 20 This is an exploded perspective view of a gear module according to an embodiment of the present disclosure.

[0068] Figure 21 This is a perspective view of a driver module according to an embodiment of the present disclosure.

[0069] Figure 22 and Figure 23 This is a side view showing the connection state of the gear module and drive module according to an embodiment of the present disclosure.

[0070] Figure 24 This is a diagram used for illustrating the movable state in the left-right direction of an embodiment of this disclosure.

[0071] Figure 25 This is a diagram used for illustrating the immovable state in the left-right direction of an embodiment of this disclosure.

[0072] Figure 26 and Figure 27 This is a diagram used for explaining the determination of the window position in embodiments of the present disclosure.

[0073] Figures 28 to 30 This is a diagram used for explaining the operating state of the drive motor in an embodiment of this disclosure.

[0074] Figure 31 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0075] Figure 32 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0076] Figure 33 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0077] Figure 34 This is a diagram used for illustrating window cleaning in one embodiment of the present disclosure.

[0078] Figure 35 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure. Detailed Implementation

[0079] The embodiments disclosed in this specification will now be described in detail with reference to the accompanying drawings. Regardless of the drawing numbers, the same or similar components are given the same reference numerals, and repeated descriptions thereof are omitted.

[0080] The terms “module” and “section” used in the following description regarding constituent elements are assigned or used interchangeably for the convenience of writing the instruction manual only, and do not have the meaning or function of distinguishing one another.

[0081] Terms such as "first," "second," etc., which include ordinal numbers, are used to describe various constituent elements, but these terms do not limit the constituent elements. These terms are only used to distinguish one constituent element from others.

[0082] When referring to a constituent element being "connected" or "accessed" to other constituent elements, it can mean that the connection or access is direct or that other constituent elements exist in between. Conversely, when referring to a constituent element being "directly connected" or "directly accessed" to other constituent elements, there are no other constituent elements in between.

[0083] Unless otherwise defined in the text, the singular can mean multiple.

[0084] Hereinafter, with reference to the accompanying drawings, a window cleaning device according to an embodiment of the present invention will be described.

[0085] Reference Figure 1 The window cleaning device installed in the window frame is described.

[0086] Multiple windows 1 are configured in the window frame 2.

[0087] A window cleaning device 10 is disposed on the window frame 2. The window cleaning device 10 is disposed on one side of the window 1.

[0088] The window cleaning device 10 is movable in the left-right direction and is disposed in the window frame 2. The window cleaning device 10 can clean the window 1 by moving up and down on one side of the window 1.

[0089] The window cleaning device 10 includes: a frame 11, which is mounted on the window frame 2 and moves along the left and right directions of the window frame 2; and a body 100, which is movable in the up and down direction and disposed on the frame 11.

[0090] The frame 11 is movable in the left-right direction and is mounted on the window frame 2. The frame 11 is mounted on the window frame 2 in a quadrilateral frame shape. The frame 11 is positioned on one side of the window 1.

[0091] The main body 100 can move up and down along the frame 11 to clean the window 1. The main body 100 can dust off or wipe away foreign objects from the window 1.

[0092] The window cleaning device 10 includes a net 294 connected to the frame 11 and the body 100 respectively. The length of the net 294 in the vertical direction can be deformed according to the configuration of the body 100.

[0093] Mesh 294 can be an insect screen to prevent foreign objects or insects from entering the room.

[0094] One end of the mesh 294 is connected to the upper end of the frame 11. The other end of the mesh 294 is connected to the body 100. The other end of the mesh connected to the body 100 can be configured to be wound.

[0095] Therefore, the winding shape of the other end of the grid 294 moves according to the configuration of the main body 100, thereby deforming the length of the grid 294 in the vertical direction.

[0096] Reference Figure 2 The components of the frame and main body are described.

[0097] Frame 11 may have a quadrilateral frame shape. In general, frame 11 may have the same shape as the grid frame disposed on the outer contour of the window frame.

[0098] The frame 11 includes a pair of side frames 12a and 12b that extend vertically and are spaced apart horizontally.

[0099] The frame 11 includes an upper frame 14 that connects the upper ends of a pair of side frames 12a and 12b, and a lower frame 16 that connects the lower ends of a pair of side frames 12a and 12b.

[0100] A pair of side frames 12a and 12b are respectively provided with guide rails 18 to guide the vertical movement of the main body 100.

[0101] Guide rail 18 is disposed on the outer peripheral surface of each of the pair of side frames 12a and 12b. Guide rail 18 protrudes outward from the outer peripheral surface of each of the pair of side frames 12a and 12b.

[0102] The main body 100 can move along the guide rail 18 in the vertical direction.

[0103] The main body 100 includes an outer shell 102 that forms the shape. The outer shell 102 includes a lower shell 110 that forms an internal space and an upper shell 104 disposed above the lower shell 110.

[0104] Inside the lower housing 110, there may be components for cleaning windows and components for moving the main body 100 in the vertical direction.

[0105] A solar panel 106 may be configured on the upper housing 104. The solar panel 106 configured on the upper housing 104 can be a power source for the operation of the main body 100.

[0106] The upper housing 104 may be formed into a curved shape. The upper housing 104 may have at least one inclined surface.

[0107] Reference Figure 3 Further explanation of the framework structure is provided.

[0108] The frame 11 includes: a lower frame 16; an upper frame 14 spaced apart from and disposed above the lower frame 16; and a pair of side frames 12a, 12b that extend vertically to connect the two ends of the lower frame 16 and the upper frame 14, respectively.

[0109] Each of the pair of side frames 12a and 12b is provided with a guide rail 18. A movable member 124 mounted on the main body 100 can move on the guide rail 18. The movable member 124 can move up and down along the guide rail 18 via a gear structure or a magnetic structure.

[0110] A gear module 20 is disposed on the lower frame 16, which moves the frame 11 in the left-right direction. The gear module 20 and the drive gear 116 disposed on the main body 100 (described later) Figure 5 )connect.

[0111] Inside the gear module 20, there may be a plurality of frame gears 22 that are rotatably configured on the lower frame 16 and move along the window frame 2.

[0112] Reference Figure 4 The main body's components are described.

[0113] The main body 100 includes an outer shell 102 that forms the shape.

[0114] The housing 102 includes a lower housing 110 and an upper housing 104 disposed above the lower housing 110.

[0115] Spaces for arranging multiple components are formed inside the lower housing 110 and the upper housing 104.

[0116] A solar panel 106 is disposed on the upper housing 104.

[0117] The main body 100 includes a cleaning fluid tank 130 disposed inside the housing 102 for storing cleaning fluid. The main body 100 includes a first pump 150 for drawing the cleaning fluid stored in the cleaning fluid tank 130.

[0118] The first pump 150 can supply cleaning fluid to the nozzle 240 (described later). The first pump 150 can supply cleaning fluid stored in the cleaning fluid tank 130 to the nozzle 240 (see reference). Figure 5 ).

[0119] The main body 100 includes a second pump 152 for discharging cleaning fluid collected inside the housing 102. The second pump 152 can discharge cleaning fluid collected inside the cleaning module 170 (described later) to the outside of the main body 100.

[0120] The main body 100 includes a battery 128 disposed inside the housing 102 and storing electricity generated by the solar panel 106. The battery 128 can supply power to components operating on the main body 100. In addition, the battery 128 can receive power from another external power source.

[0121] The main body 100 may include a motherboard 126 disposed inside the housing 102 and having a plurality of electronic components configured to control components that operate electronically.

[0122] Reference Figure 5 The other components of the main body will be described.

[0123] The main body 100 includes a first surface 112 facing the window. The outer shell 102 includes a first surface 112 facing the window. The lower shell 110 includes a first surface 112 facing the window.

[0124] When the main body 100 is installed onto the frame 11, the first surface 112 is configured to face the window.

[0125] The main body 100 includes a cleaning module 170 for removing foreign objects present in the window. A portion of the cleaning module 170 is configured to protrude from the first surface 112.

[0126] The cleaning module 170 can spray cleaning fluid towards the window. The cleaning module 170 can adhere closely to the window to wipe away foreign objects attached to it. The cleaning module 170 can also spray air towards the window.

[0127] The cleaning module 170 includes a scraper 250 on its front surface 174 that is in close contact with the window. The cleaning module 170 also includes a nozzle 240 on its front surface 174 that sprays cleaning fluid toward the window.

[0128] An air outlet 192 is formed on the front surface of the cleaning module 170. An air intake 190 is formed on the front surface 174 of the cleaning module 170 for drawing in air or cleaning fluid.

[0129] Here, the front surface 174 of the cleaning module 170 may be a surface facing the window.

[0130] An ultrasonic sensor 260 for sensing the distance between the cleaning module 170 and the window is disposed on one side of the cleaning module 170. The ultrasonic sensor 260 can sense the distance between the cleaning module 170 and the window and keep the cleaning module 170 in close contact with the window.

[0131] A surface illuminance sensor 262 for sensing whether the window is dirty is disposed on one side of the cleaning module 170. The surface illuminance sensor 262 can sense the gloss of the window and thus sense whether the window is dirty.

[0132] A mesh module 290 is disposed on the exterior of the first surface 112 of the housing 102. The mesh module 290 is positioned above the cleaning module 170. A mesh 294 is exposed from the mesh module 290. The mesh module 290 forms a space within itself in which the mesh 294 is arranged in a coiled state.

[0133] As the main body 100 moves along the frame 11 in the vertical direction, the grid inside the grid module 290 is unfolded or rolled up.

[0134] When the moving part 124 moves the housing 102 in the vertical direction, the length of the grid 294 extending from the upper end of the frame 11 to the lower side changes.

[0135] A cover 114 for opening and closing an inlet / outlet for the cleaning fluid tank 130 is disposed on the first surface 112 of the housing 102. The first surface 112 of the housing 102 is disposed facing the interior. Therefore, the user can remove or replace the cleaning fluid tank 130 from the housing 102 by disposing the cover 114 in an indoor space to open the inlet / outlet.

[0136] A display 120 may be disposed on the first surface 112 of the housing 102. The display 120 may visualize and inform the user whether the window cleaning device 10 is operating or about the external environment.

[0137] A gear module 20 (see reference) is disposed on the first surface 112 of the housing 102, which is similar to that disposed on the frame 11. Figure 11 The main body 100 includes a drive motor 118 (see reference 116) that rotates the drive gear 116. Figure 11 ).

[0138] When the main body 100 is positioned in the lower end region of the frame 11, the drive gear 116 meshes with the gear module 20. Therefore, as the drive gear 116 rotates, the frame 11 and the main body 100 can move in the left-right direction on the window frame 2.

[0139] A pair of shell grooves 122 are formed at both ends of the first surface 112 of the outer shell 102. Movable members 124 are respectively disposed in the pair of shell grooves 122. Each of the pair of shell grooves 122 extends in the vertical direction.

[0140] Reference Figure 6 The components and configuration of the cleaning module and the mesh module 290 are described.

[0141] The cleaning module 170 is configured to protrude from the first surface 112 of the housing 102.

[0142] The cleaning module 170 is positioned below the mesh module 290. The cleaning module 170 protrudes further towards the window than the mesh module 290.

[0143] The cleaning module 170 includes a cleaning body 172 that forms an airflow path. Inside the cleaning body 172, there is an intake flow path 194 that draws in air from the intake port 190 and an exhaust flow path 196 that discharges air from the exhaust port 192.

[0144] The discharge flow path 196 is positioned above the suction flow path 194. The scraper 250 is positioned above the suction port 190 or the discharge port 192.

[0145] The mesh module 290 includes: a mesh housing 292; a mesh 294, one end of which is connected to the frame 11 and the remaining other end is disposed inside the mesh housing 292; and a roller 296, which winds the mesh 294 disposed inside the mesh housing 292.

[0146] The mesh module 290 is detachably disposed on the housing 102. Therefore, the mesh module 290 can be fixedly mounted on the outside of the housing 102 or detached from the housing 102.

[0147] Depending on the configuration of the main body 100, the length of the exposed mesh 294 in the vertical direction changes.

[0148] Reference Figure 7 Additional descriptions are provided of the internal components of the main body.

[0149] A portion of a cleaning module 170 may be disposed inside the housing 102. The cleaning module 170 includes a fan 230 that forms an airflow into an airflow path formed inside the cleaning body 172.

[0150] Fan 230 exhausts air through outlet 192. Fan 230 draws in air through inlet 190.

[0151] A water collection section 200 is disposed on the rear surface of the cleaning body 172. The water collection section 200 forms a space for collecting cleaning fluid that flows in with air through the suction port 190.

[0152] Inside the housing 102 may be a first pump 150 for supplying cleaning fluid stored in the cleaning fluid tank 130 to the nozzle 240. The first pump 150 is disposed on one side of the cleaning fluid tank 130.

[0153] A second pump 152 is disposed inside the outer casing 102 to discharge cleaning fluid stored in the water collection section 200 to the outside. The second pump 152 is disposed on one side of the water collection section 200. The second pump 152 can discharge the cleaning fluid stored in the water collection section 200 to the outside of the main body 100.

[0154] Reference Figure 8 The structure of the front surface of the cleaning module and the configuration of the flow path and fan of the cleaning module are described.

[0155] The cleaning module 170 includes a cleaning body 172 that forms a flow path for airflow inside.

[0156] An intake port 190 and an exhaust port 192 are formed on the front surface 174 of the cleaning body 172. The intake port 190 is located below the exhaust port 192.

[0157] A scraper 250 is disposed on the front surface 174 of the cleaning body 172. The scraper 250 is disposed above the suction port 190 and the discharge port 192. The scraper 250 is disposed above the nozzle 240.

[0158] A plurality of suction ports 190 spaced apart in the left-right direction are formed on the front surface 174 of the cleaning body 172. A plurality of discharge ports 192 spaced apart in the left-right direction are formed on the front surface 174 of the cleaning body 172.

[0159] The cleaning module 170 includes a fan 230 that creates airflow through a flow path formed inside the cleaning body 172. The fan 230 causes air to be discharged from an outlet 192 formed on the front surface 174 of the cleaning body 172. The fan 230 also causes air to be drawn in from an inlet 190 formed on the front surface 174 of the cleaning body 172.

[0160] A nozzle 240 for spraying cleaning fluid is disposed on the front surface 174 of the cleaning body 172. A plurality of nozzles 240 are disposed at intervals in the left-right direction on the front surface of the cleaning body 172.

[0161] Nozzle 240 is positioned below outlet 192. Nozzle 240 is positioned above inlet 190.

[0162] By operating the fan 230, air and cleaning fluid flow into the interior of the cleaning unit 172 through the suction port 190. By operating the fan 230, air is discharged through the exhaust port 192. By operating the first pump 150, cleaning fluid stored in the cleaning fluid tank 130 can be sprayed through the nozzle 240.

[0163] Reference Figure 9 The structure in front of the cleaning module will be explained.

[0164] The cleaning body 172 includes a first front surface 174a with a scraper 250 and a second front surface 174b with a nozzle 240. The second front surface 174b is positioned further rearward than the first front surface 174a. An intake 190 and an exhaust 192 are formed on the second front surface 174b.

[0165] The second front surface 174b is disposed below the first front surface 174a.

[0166] A scraper 250 is disposed on the first front surface 174a of the cleaning body 172. The scraper 250 is mounted on the cleaning body 172. The scraper 250 may be made of rubber. The scraper 250 and the cleaning body 172 may be made of different materials.

[0167] The scraper 250 can be pressed against the window to remove foreign objects adhering to the window. The scraper 250 includes a fixing part 252 fixed to the cleaning body 172 and a protrusion 254 protruding from the front surface 174 of the cleaning body 172 toward the window.

[0168] The fixing part 252 has an "H" shaped cross-section and is inserted into the inside of the cleaning body 172. The fixing part 252 fixes the scraper 250 to the cleaning body 172.

[0169] The protrusion 254 protrudes forward from the front surface 174 of the cleaning body 172. The protrusion 254 may have a shape in which its width narrows in the vertical direction as it approaches the front. The protrusion 254 may have a shape in which its upper surface is inclined so that its width decreases as it approaches the front.

[0170] An outlet 192 and an inlet 190 are disposed below the scraper 250. The inlet 190 is disposed below the outlet 192.

[0171] The upper surface of the outlet 192 slopes downwards as it approaches the front. Therefore, air discharged through the outlet 192 can be discharged at a downward angle.

[0172] The upper surface of the intake 190 slopes upwards as it approaches the front. Therefore, cleaning fluid sprayed from above the intake 190 can flow into the intake 190. Additionally, foreign objects falling from the window via the air discharged from the outlet 192 can flow into the intake 190.

[0173] A nozzle 240 is disposed on the suction port 190. The nozzle 240 is disposed on the second front surface 174b. The front end of the nozzle 240 is disposed further rearward than the first front surface 174a.

[0174] That is, the nozzle 240 is configured to be further spaced from the window than the first front surface 174a. The scraper 250 protrudes further forward than the nozzle 240.

[0175] An intake port 190 and an exhaust port 192 are provided on the second front surface 174b.

[0176] Reference Figure 10 The shell groove and moving parts of the main body are described.

[0177] Shell grooves 122 are formed at both ends of the first surface 112 of the outer casing 102. The shell grooves 122 extend in the vertical direction. The shell grooves 122 form grooves that are recessed from the first surface 112 of the outer casing 102 in the inward direction.

[0178] A guide rail 18 disposed on the frame 11 can be configured in the housing groove 122. The main body 100 can be mounted on the frame 11 in a state in which a portion of the guide rail 18 is inserted into the housing groove 122.

[0179] A movable element 124 is disposed in the housing groove 122. The movable element 124 allows the main body 100 to move in the vertical direction.

[0180] After the scraper 250 is pressed against the window 1, the moving part 124 moves the housing 102 downward.

[0181] The movable element 124 can be a structure that moves by magnetic levitation. Therefore, an electromagnet can be arranged on the guide rail 18. The electromagnet arranged on the guide rail 18 can move the movable element 124 by changing its polarity.

[0182] Additionally, the movable member 124 includes an internal gear structure, which rotates to move the main body 100. At this time, a guide rail gear (not shown) that meshes with the gear can be disposed on the guide rail 18.

[0183] Figure 11 The gear module and drive gear configured in the frame are described.

[0184] A gear module 20 is disposed on the lower frame 16. The gear module 20 includes at least one frame gear 22. The frame gear 22 is rotatably disposed inside the lower frame 16. The frame gear 22 can rotate in a fixed position.

[0185] The frame gear 22 may include a cover made of rubber. Additionally, another cover made of rubber may be disposed on the outer periphery of the frame gear 22.

[0186] When the frame gear 22 rotates, it can rub against the bottom surface of the window frame 2. Therefore, when the frame gear 22 rotates, it can cause the frame 11 to move in the left and right direction while rubbing against the window frame 2.

[0187] The frame gear 22 may include a pair of frame gears 22 spaced apart in the left-right direction. A drive gear 116 is disposed between the pair of frame gears 22. The drive gear 116 meshes with each of the pair of frame gears 22.

[0188] Therefore, as the drive gear 116 rotates, the pair of frame gears 22 arranged on both sides can rotate in the same direction. A drive motor 118 for rotating the drive gear 116 can be arranged on one side of the drive gear 116.

[0189] Reference Figure 12 The vertical movement of the window cleaning device is explained.

[0190] By operating the movable component 124, the main body 100 moves vertically along the frame 11. As the main body 100 moves, the length of the grid 294 changes. The upper end of the grid 294 is fixed to the upper frame 14. Therefore, the grid 294 can be positioned from the upper frame 14 to the position where the main body 100 is located.

[0191] The main body 100 can move along the frame 11 while removing foreign objects attached to the window 1. The cleaning module 170 of the main body 100 can spray air into the window to remove foreign objects attached to the window 1. The cleaning module 170 can spray cleaning fluid into the window.

[0192] The cleaning module 170 can move downwards along the window 1 while wiping away foreign objects attached to the window 1.

[0193] The cleaning module 170 can clean the window while moving downwards along the frame 11. As the main body 100 moves towards the lower end of the frame 11, the grid 294 blocks the window.

[0194] Reference Figure 13 The left-right movement of the window cleaning device is explained.

[0195] The window cleaning device 10 moves in the left-right direction via the frame 11. The frame 11 can move in the left-right direction within the window frame 2.

[0196] As the frame 11 moves, the main body 100 configured on the frame 11 also moves.

[0197] When the main body 100 is positioned at the lower end of the frame 11, the drive gear 116 of the main body 100 is connected to the gear module 20 of the frame 11. Specifically, the drive gear 116 meshes with the frame gear 22.

[0198] When the drive motor 118 of the main body 100 is running, the drive gear 116 causes the frame gear 22 to rotate. When the frame gear 22 rotates, the frame 11 can move in the left and right directions while positioned in the window frame 2.

[0199] The frame gear 22 is in close contact with the window frame 2, and the frame 11 can be moved by friction.

[0200] The frame 11 can move in the left and right directions while the main body 100 moves towards the lower end of the frame 11. While the frame 11 is moving, the main body 100 can clean one side of the window while moving in the up and down directions.

[0201] Reference Figure 14 The module moving device for changing the configuration of the cleaning module is described.

[0202] The main body 100 includes a module moving device 270 for changing the configuration of the cleaning module 170. The module moving device 270 allows the cleaning module 170 to move in the back-and-forth direction.

[0203] The module moving device 270 causes the scraper 250 to contact or be spaced from the window 1. The module moving device 270 also causes the scraper 250 to be pressed tightly against the window 1.

[0204] The module moving device 270 includes a module motor 272 and a transmission component 276 that rotates by the operation of the module motor 272 to move the cleaning module 170.

[0205] The transmission component 276 is rotatably disposed below the cleaning body 172. The transmission component 276 may have a rod shape extending in the left-right direction. The transmission component 276 may have an elongated shape extending in the left-right direction.

[0206] The transmission component 276 rotates by the rotational force of the module motor 272, causing the cleaning body 172 to move.

[0207] The modular moving device 270 includes a modular motor gear 274 that rotates by the operation of the modular motor 272.

[0208] The transmission component 276 includes: a first transmission gear 280 that meshes with a module motor gear 274; a pair of second transmission gears 282 that are connected to the lower surface 178 of the cleaning body 172; and a rotating rod 278 that transmits the rotational force of the first transmission gear 280 to the pair of second transmission gears 282 respectively.

[0209] A pair of second transmission gears 282 are arranged at both ends of the rotating rod 278. A first transmission gear 280 is arranged between the pair of second transmission gears 282.

[0210] The first transmission gear 280 and a pair of second transmission gears 282 are connected to the rotating rod 278 and rotate together.

[0211] A rack 180 that meshes with the transmission component 276 may be disposed on the lower surface 178 of the cleaning body 172. A pair of racks 180 that are spaced apart to the sides and extend in the front-back direction may be disposed on the lower surface 178 of the cleaning body 172.

[0212] Reference Figure 15 The pressure sensor that senses the contact of the scraper is explained.

[0213] The cleaning module 170 includes a pressure sensor 264 that senses whether the scraper 250 is in close contact with the window. When the scraper 250 contacts the window, a force that pushes the scraper 250 backward is transmitted to the pressure sensor 264.

[0214] Pressure sensor 264 can precisely sense whether scraper 250 is in contact with the window.

[0215] The cleaning module 170 includes a pressure transmission unit 266. The pressure transmission unit 266 can transmit the force generated from the scraper 250 to the pressure sensor 264. The pressure transmission unit 266 can be formed in the form of an air tube. Therefore, when the scraper 250 contacts the window 1, the air inside the pressure transmission unit 266 is compressed and can transmit force to the pressure sensor 264.

[0216] Reference Figure 16 The movement of the cleaning module is explained.

[0217] like Figure 16 As shown in (a), the cleaning module 170 can be configured at a first position P1, spaced apart from the window 1. Figure 16 As shown in (b), the cleaning module 170 can be configured at a second position P2 in contact with the window 1.

[0218] The first position P1 can be a state where the scraper 250 of the cleaning module 170 is not in contact with the window 1. The first position P1 can also be a state where the pressure sensor 264 of the cleaning module 170 does not sense the pressure generated by the scraper 250.

[0219] When the main body 100 moves upward, the cleaning module 170 can be configured in the first position P1.

[0220] The first position P1 can be the state in which the cleaning module 170 is moved backward by the module moving device 270.

[0221] The second position P2 can be the state in which the scraper 250 of the cleaning module 170 is in contact with the window 1. The second position P2 can also be the state in which the pressure sensor 264 of the cleaning module 170 senses the pressure generated by the scraper 250.

[0222] When the main body 100 moves downward, the cleaning module 170 can be configured in the second position P2.

[0223] The second position P2 can be the state in which the cleaning module 170 is moved forward by the module moving device 270.

[0224] The module moving device 270 moves the cleaning module 170 for the first time based on the distance between the module and the window 1 sensed by the ultrasonic sensor 260. The module moving device 270 then moves the cleaning module 170 a second time based on pressure information sensed subsequently by the pressure sensor 264.

[0225] That is, based on the distance sensed by the ultrasonic sensor 260 at the first position P1, the module moving device 270 causes the cleaning module 170 to move for the first time. The position where the cleaning module 170 moves for the first time can be the second position P2 or a position between the first position P1 and the second position P2.

[0226] The precision of the interval between window 1 and cleaning module 170 sensed by ultrasonic sensor 260 may decrease.

[0227] Furthermore, even if the cleaning module 170 is moved by operating the module moving device 270 based on the information sensed by the ultrasonic sensor 260, the scraper 250 may not adhere to the window 1 with the desired level of pressure.

[0228] Therefore, the cleaning module 170 moves a second time based on the pressure information sensed by the pressure sensor 264. At this time, the scraper 250 moves downward and comes into close contact with the window 1 to a degree that can remove foreign objects attached to the window 1.

[0229] That is, the module moving device 270 moves the cleaning module 170 in such a way that the pressure sensed by the pressure sensor 264 forms a pressure between a first set pressure and a second set pressure.

[0230] The first set pressure can be the pressure generated at the moment when the scraper 250 begins to contact the window 1. The second set pressure can be the pressure at the moment when the force generated by the friction between the scraper 250 and the window 1 becomes greater than the force of the moving member 124 that causes the main body 100 to move in the vertical direction.

[0231] Therefore, even if the moving part 124 operates, the main body 100 may not move in the vertical direction if the pressure exceeds the second set pressure.

[0232] After the scraper 250 is pressed against the window 1, the moving part 124 moves the housing 102 downward.

[0233] After the module moving device 270 brings the cleaning module 170 into close contact with the window 1, the moving part 124 and the first pump 150 operate. However, before the module moving device 270 moves the cleaning module 170 toward the window 1, the first pump 150 temporarily operates to spray cleaning fluid through the nozzle 240.

[0234] The first pump 150 sprays cleaning fluid onto the window 1, thereby reducing the friction between the window 1 and the scraper 250. This reduces the force required by the moving part 124 to move the main body 100 downwards.

[0235] Figure 17 This is a block diagram of a window cleaning device according to an embodiment of the present disclosure.

[0236] Reference Figure 17 The window cleaning device 10 may include a control unit 1010 for controlling the overall operation of the window cleaning device 10.

[0237] Control unit 1010, etc. are exemplified in Figure 17 At least a portion of the internal module of the window cleaning device 10 may be configured inside the main body 100. For example, the control unit 1010 may be mounted to the main board 126.

[0238] The window cleaning device 10 may include a memory 1030, a sensing unit 1050, a communication unit 1060, an interface 1040, etc.

[0239] The memory 1030 may store data for controlling the operation of the window cleaning device 10, data sensed or measured by the sensing unit 1050 during operation, and data received by the communication unit 1060. On the other hand, the window cleaning device 10 may include a buffer for temporary data storage, which may be included in the control unit 1010 or the memory 1030.

[0240] The control unit 1010 can process various data received through the communication unit 1060 to update the memory 1530. For example, if the data input through the communication unit 1060 is update data about the running program that has been stored in the memory 1030, the memory 1030 is updated using this update data. If the input data is a new running program, it can be additionally stored in the memory 1030.

[0241] The sensing unit 1050 includes multiple sensors to measure illuminance, humidity, etc., or to sense the operating status of the window cleaning device 10. For example, the sensing unit 1050 may include the ultrasonic sensor 260, surface illuminance sensor 262, and pressure sensor 264 described above. In addition, the sensing unit 1050 may include an illuminance sensor (not shown), a temperature sensor (not shown), a humidity sensor (not shown), an air quality sensor (not shown), etc.

[0242] The ultrasonic sensor 260 can measure distances up to window 1. The ultrasonic sensor 260 can also measure transparent glass, making it suitable for measuring distances up to window 1 and / or window frame 2.

[0243] The ultrasonic sensor 260 emits sound waves towards the window. The ultrasonic sensor 260 also sends an ultrasonic signal towards the window as a distance measurement signal. The ultrasonic sensor 260 receives the reflected signal. The closer the ultrasonic sensor 260 is to the object, the faster the reflected ultrasonic signal is received; the farther the ultrasonic sensor 260 is to the object, the slower the reflected ultrasonic signal is received. The distance can be measured based on the time it takes for the ultrasonic signal from the ultrasonic sensor 260 to return after being reflected by the window 1 and / or window frame 2.

[0244] The control unit 1010 can control the sensing operation of the ultrasonic sensor 260. The control unit 1010 can determine the distance to window 1 and / or window frame 2 based on the measurement values ​​of the ultrasonic sensor 260. Here, the measurement values ​​of the ultrasonic sensor 260 can be the data measured by the ultrasonic sensor 260 itself or secondary data (amplification, calculation, etc.) processed by the ultrasonic sensor 260 or the control unit 1010 on the data measured by the ultrasonic sensor 260.

[0245] For example, the measured value could be the time difference data of the transmitting and receiving signals of the ultrasonic sensor 260 or distance data based on the time difference data.

[0246] Alternatively, the measured value can be the intensity data of the signal received from the ultrasonic sensor 260 or the distance data based on the signal intensity data.

[0247] The ultrasonic sensor 260 can transmit and receive ultrasonic signals at a specific location. The control unit 1010 can control the cleaning operation of the cleaning module 170 and the movement operation of the moving device 1020 based on the data sensed by the ultrasonic sensor 260.

[0248] The surface illuminance sensor 262 can measure the illuminance in front of the window cleaning device 10, i.e., the side of the window 1, and the illuminance sensor can measure the illuminance behind the window cleaning device 10, i.e., the outside.

[0249] In addition, temperature sensors can measure temperature, humidity sensors can measure humidity, and air quality sensors can measure air quality.

[0250] Additionally, the sensing unit 1050 may include a motor sensor for sensing the operating state of the drive motor 118. For example, the sensing unit 1050 may include a current sensor for measuring the current of the drive motor 118. The sensing unit 1050 may also include a speed sensor for measuring the rotational speed of the drive motor 118.

[0251] The control unit 1010 can control the flow of data input to or output to the window cleaning device 10, and generate and apply control commands based on the data input from the sensor unit 1050.

[0252] On the other hand, the window cleaning device 10 can communicate with other devices such as servers, home appliances, and terminals through the communication unit 1060 to send and receive data.

[0253] The communication unit 1060 may include one or more communication modules. The communication unit 1060 may include a transmitter (not shown) that sends specified data to other devices. Additionally, the communication unit 1060 may include a receiver (not shown) that receives specified data from other devices. The transmitter and receiver may be integrated to form a transceiver.

[0254] Users can control the window cleaning device 10 from indoors via user terminals such as smartphones.

[0255] The input interface 1041 can receive various user commands related to the operation of the window cleaning device 10 and transmit control signals corresponding to the input commands to the control unit 1010. The input interface 1041 may include a touchpad, physical buttons, etc.

[0256] According to an embodiment, the input interface 1041 may include a receiver for receiving control commands sent by a remote control device (not shown).

[0257] Users can control the window cleaning device 10 remotely from indoors.

[0258] The output interface 1042 may include the aforementioned display 120. For example, the display 120 may display information such as the operating status of the window cleaning device 10, operating status related to errors, or weather.

[0259] The output interface 1042 may include audio devices such as a speaker (not shown) and a buzzer (not shown). For example, the output interface 1042 may output sound effects indicating the operating status of the window cleaning device 10, and may output a prescribed warning sound when an error occurs.

[0260] According to an embodiment, the display 120 described above is implemented as a touchscreen and can also be used as an input unit. Furthermore, if the display 120 is a touchscreen, at least some of the hard buttons included in the input interface 1041 can be removed.

[0261] The control unit 1010 can be connected to each component provided in the window cleaning device 10. For example, the control unit 1010 can send and / or receive signals to each component provided in the window cleaning device 10, and can control the overall operation of each component.

[0262] The control unit 1010 may include at least one processor, and uses the processor included therein to control the entire operation of the window cleaning device 10. Here, the processor may be a general processor such as a CPU (central processing unit). Of course, the processor may be a dedicated device such as an ASIC or other hardware-based processor.

[0263] The window cleaning device 10 may include a cleaning module 170 for cleaning the window 1. The control unit 1010 can control the cleaning module 170 to clean the window 1.

[0264] The window cleaning device 10 offers multiple cleaning modes. The user can select any one of the multiple cleaning modes. The control unit 1010 can control the window cleaning device 10 according to the selected cleaning mode.

[0265] Furthermore, when the user selects the automatic mode, the control unit 1010 can automatically select the cleaning mode based on information obtained through the sensor unit 1050 and / or the communication unit 1060. Therefore, automatic cleaning customized according to a prescribed schedule and external environment can be performed, effectively cleaning the windows.

[0266] The window cleaning device 10 may include a moving device 1020 for moving the window cleaning device 10. The moving device 1020 can move the main body 100 in at least a predetermined direction.

[0267] The control unit 1010 can control the moving device 1020 to move the main body 100. In addition, the control unit 1010 can control the moving device 1020 to move the frame 11.

[0268] The frame 11 can be movably installed on the window frame 2, and the main body 100 can be movably installed on the frame 11.

[0269] The moving device 1020 includes a first moving device 1021 for moving in the vertical direction and a second moving device 1022 for moving in the horizontal direction.

[0270] The first moving device 1021 allows the main body 100 to move vertically. The main body 100 can move vertically along the frame 11 to clean the window 1. For example, the first moving device 1021 may include a moving member 124.

[0271] The second moving device 1022 can move the frame 11 in the left-right direction. For example, the second moving device 1022 may include a gear module 20, a drive gear 116, and a drive motor 118.

[0272] The main body 100 can be mounted to the frame 11 and move together along the direction of movement of the frame 11. Therefore, the second moving device 1022 can move the frame 11 and the main body 100 in the left and right directions with the window 1 as a reference.

[0273] The window cleaning device 10 can be installed on ordinary windows and insect screen frames, and cleans windows by moving up and down and left and right regardless of the shape and number of windows.

[0274] Figure 18 This is a schematic diagram of a gear module and a drive module for moving in a left-right direction, according to an embodiment of the present disclosure.

[0275] Reference Figure 18 A drive module 30 is configured on the main body 100. The drive module 30 may include a drive gear 116 and a drive motor 118.

[0276] A gear module 20 is disposed on the lower frame 16 of the frame 11. The frame gear 22 of the gear module 20 corresponds to the drive gear 116 of the drive module 30.

[0277] When the gear module 20 and the drive module 30 are connected, the frame 11 can move in the left and right directions. The drive gear 116 is connected to the drive motor 118 and can rotate as the drive motor 118 rotates.

[0278] When the frame gear 22 and the drive gear 116 are engaged, when the drive motor 118 rotates, the drive gear 116 and the frame gear 22 rotate, and the frame 11 and the main body 100 can move in the left and right directions.

[0279] The control unit 1010 can control the rotation direction of the drive motor 118 to determine the movement direction of the frame 11 and the main body 100. The frame 11 and the main body 100 can move to the left or right depending on the rotation direction of the drive motor 118.

[0280] In addition, the control unit 1010 controls the rotational speed and driving time of the drive motor 118 to move the frame 11 and the main body 100 to the required precise position.

[0281] Figure 19 This is a perspective view of a gear module according to an embodiment of this disclosure. Figure 20 This is an exploded perspective view of a gear module according to an embodiment of the present disclosure.

[0282] Reference Figure 19 and Figure 20The gear module 20 includes a frame gear housing 21 that forms its shape. A space for arranging multiple components is formed inside the frame gear housing 21.

[0283] The gear module 20 may also include a frame moving roller 22a connected to the frame gear 22. The frame gear 22 and the frame moving roller 22a may be arranged inside the frame gear housing 21.

[0284] The frame moving roller 22a may be made of rubber. The frame moving roller 22a is connected to the frame gear 22 on one side and can rotate as the frame gear 22 rotates. The center of the frame gear 22 and the center of the frame moving roller 22a may be on the same straight line. A portion of the frame gear 22 may be inserted into the frame moving roller 22a. Alternatively, the frame moving roller 22a may be configured to surround the frame gear 22.

[0285] The frame gear 22 may include two or more gears 22. For example, the frame gear 22 may include a pair of frame gears 22 spaced apart in the left-right direction. The frame gears 22 may be arranged symmetrically about the drive gear 116. The frame gears 22 may contact the drive gear 116 on the left and right sides.

[0286] The gear module 20 may also include a frame guide roller 23 located below the frame moving roller 22a to improve the tightness between the frame and the window frame 2.

[0287] Figure 21 This is a perspective view of a driver module according to an embodiment of the present disclosure.

[0288] Reference Figure 21 The drive module 30 may include a drive motor 118 and multi-stage gears 116 and 310 connected to the drive motor 118.

[0289] Gears 116 and 310 may include a drive gear 116 and a reduction gear 310 for speed reduction. The reduction gear 310 may also be composed of multi-stage gears.

[0290] The drive module 30 may also include a sensor 320 for confirming the correct position. The sensor 320 for confirming the correct position may be a micro switch 320. The micro switch 320 can sense whether the body 100 is in the correct position. When the correct position is sensed by the micro switch 320, the control unit 1010 can cause the drive motor 118 to rotate.

[0291] The correct position can be the lowest position in the area where the main body 100 can move vertically.

[0292] The correct position is where the frame gear 22 and the drive gear 116 can mesh.

[0293] When in the correct position, the control unit 1010 can determine that the frame gear 22 and the drive gear 116 are engaged and can move left and right.

[0294] Under the control of the control unit 1010, when the main body 100 is in the preset correct position, the second moving device 1022 can move the frame 11 and the main body 100 in the left and right directions.

[0295] Figure 22 and Figure 23 This is a side view showing the connection state of the gear module and drive module according to an embodiment of the present disclosure.

[0296] Reference Figure 22 and Figure 23 When the main body 100 is in the correct position, the frame gear 22 and the drive gear 116 can mesh.

[0297] A pair of frame gears 22 are arranged on the left and right with the drive gear 116 as the center, so that higher friction can be transmitted compared with the number of gears being 1.

[0298] An opening 21a is formed in the lower part of the frame gear housing 21 so that the frame moving roller 22a can contact the window frame 2.

[0299] The frame moving roller 22a can be formed with a concave-convex shape. The frame moving roller 22a may include a recess 22a1 for inserting into the window frame 2. This increases the clamping force.

[0300] The frame guide roller 23 contacts the side of the window frame 2 inserted into the recess 22a1, thereby allowing the window frame 2 and the gear module 20 to fit closer together in the front-back direction.

[0301] The micro switch 320 can sense the body 100 in the correct position.

[0302] Figure 24 This is a diagram used for illustrating the movable state in the left-right direction of one embodiment of this disclosure. Figure 25 This is a diagram used for illustrating the immovable state in the left-right direction of one embodiment of this disclosure.

[0303] Reference Figure 24 The meshing state of the frame gear 22 and the drive gear 116 is such that the frame gear 22 and the drive gear 116 can rotate due to the rotation of the drive motor 118, and the frame 11 and the main body 100 can move in the left and right directions.

[0304] Reference Figure 25When the main body 100 is in the raised state, the drive gear 116 also rises from the bottom, thus the drive gear 116 is positioned above the frame gear 22 and spaced apart from the frame gear 22. Therefore, when the main body 100 is in the raised state, the drive gear 116 and the frame gear 22 cannot mesh, and even if the drive motor 118 is rotated, the frame gear 22 will not rotate.

[0305] With the frame gear 22 and the drive gear 116 engaged, the frame 11 and the main body 100 can move to the left or right depending on the rotation direction of the drive motor 118.

[0306] For example, when the drive motor 118 rotates clockwise, the drive gear 116 can rotate counterclockwise, and the frame gear 22 rotates clockwise. As a result, the frame 11 and the main body 100 can move to the left.

[0307] For example, when the drive motor 118 rotates counterclockwise, the drive gear 116 can rotate clockwise, and the frame gear 22 can rotate counterclockwise. As a result, the frame 11 and the main body 100 can move to the right.

[0308] Depending on the number of gears and the connection structure of the drive module 30, the rotation directions of the drive motor 118 and the drive gear 116 can also be the same.

[0309] When the main body 100 reaches the bottom, it can move left and right. When the main body 100 is in the rising state, it cannot move left and right.

[0310] When the main body 100 is in the preset correct position, the control unit 1010 can move the main body 100 in the left and right directions.

[0311] When moving in the left and right direction, the control unit 1010 uses the ultrasonic sensor 260 to sense the steps and confirm the position of the window 1 and / or window frame 2.

[0312] Figure 26 and Figure 27 This is a diagram used for explaining the determination of the window position in embodiments of the present disclosure.

[0313] Figure 26 The position (time) when the device moves from the leftmost to the rightmost position is displayed on the X-axis, and the distance data based on the sensing data of the ultrasonic sensor 260 is displayed on the Y-axis.

[0314] Figure 27 The position (time) when the device moves from the leftmost to the right is displayed on the X-axis, and the measurement values ​​based on the sensing data of the ultrasonic sensor 260 and the sensing data of the motor sensor based on the drive motor 118 are displayed on the Y-axis.

[0315] Figure 27 The measurement value of the ultrasonic sensor 260 is based on the intensity or quantity of the signal received after reflection. The motor sensor can be a current sensor. Figure 27 The measured values ​​of the motor sensor can be based on current values. The measured values ​​can be the data measured by the sensor itself or secondary data generated from the sensor.

[0316] Reference Figure 26 and Figure 27 Window 1 may include a middle window 1b and a left window 1a and a right window 1c of the middle window 1b.

[0317] The window cleaning device 10 can clean the left window 1a, the middle window 1b, and the right window 1c in that order. Conversely, the window cleaning device 10 can clean the right window 1c, the middle window 1b, and the left window 1a in that order.

[0318] The left window 1a and the right window 1c can be positioned further back than the middle window 1b. Therefore, the distance (2610) between the left window 1a and the window cleaning device 10 can be shorter than the distance (2630) between the middle window 1b and the window cleaning device 10. In addition, the distance (2630) between the right window 1c and the window cleaning device 10 can be shorter than the distance (2650) between the middle window 1b and the window cleaning device 10.

[0319] Window 1 may include glass and a glass frame supporting the glass. The glass frame may be disposed at the edge of the glass. The distance (2620, 2640) between the glass frame and the window cleaning device 10 may be shorter than the distance (2610, 2650) between each glass and the window cleaning device 10.

[0320] Therefore, the control unit 1010 can determine the positions of the left window 1a, the middle window 1b, and the right window 1c based on the measurement values ​​of the ultrasonic sensor 260.

[0321] The closer the ultrasonic sensor 260 is to the object, the faster the reflected ultrasonic signal is received. Furthermore, the closer the ultrasonic sensor 260 is to the window 1, the greater the intensity and quantity of the reflected ultrasonic signal. Therefore, the position of the window 1 can also be determined based on the intensity or quantity of the reflected ultrasonic signal.

[0322] The control unit 1010 can determine the position of the glass frame of the left window 1a, the middle window 1b, and the right window 1c based on the measurement value of the ultrasonic sensor 260.

[0323] The left-right movement area of ​​the main body 100 may extend from the left endpoint to the right endpoint. The left endpoint may be located at the leftmost end of the left-right movement area, and the right endpoint may be located at the rightmost end of the left-right movement area.

[0324] When the main body 100 is located at the leftmost end point, it cannot move further to the left. Therefore, even if the drive motor 118 is rotated in order to move the main body 100 to the left, the main body 100 cannot move, and only the motor current of the drive motor 118 increases.

[0325] Therefore, the control unit 1010 can identify the motor overload and confirm the area that cannot move left or right based on the measurement values ​​of the motor sensor.

[0326] The control unit 1010 can determine whether the main body 100 is located at the left and right end points based on the measurement value of the current sensor. In addition, the control unit 1010 can determine whether the main body 100 can move based on the measurement value of the speed sensor.

[0327] Figures 28 to 30 This is a diagram used for explaining the operating state of the drive motor in an embodiment of this disclosure.

[0328] Reference Figures 28 to 30 The operating states of the drive motor 118 can be divided into three types. The three operating states are: disengaged (…). Figure 28 ),normal( Figure 29 Overload (non-movable) Figure 30 ).

[0329] like Figures 28 to 30 As shown, the rotational speed (RPM) and current are different for each operating state. Upper and lower limit management ranges are set for both the rotational speed (RPM) and current. These management ranges can be set based on the normal operating state of the drive motor 118.

[0330] When the drive gear 116 and the frame gear 22 are disengaged, the main body 100 and the frame 11 cannot move in the left or right direction. In the disengaged state, even if the drive motor 118 is rotated, it cannot move in the left or right direction; only the drive motor 118 will idle.

[0331] Therefore, as Figure 28 As shown, when the gear is disengaged, the rotational speed is higher than the upper speed limit. Additionally, when the gear is disengaged, the current to the drive motor 118 is lower than the lower current limit.

[0332] When the current value measured by the current sensor is less than the lower current limit and the rotational speed value measured by the speed sensor is higher than the upper speed limit, the control unit 1010 can determine that the gears of the drive gear 116 and the frame gear 22 are disengaged.

[0333] Reference Figure 29 Under normal conditions where the drive gear 116 and the frame gear 22 are engaged, the rotational speed (RPM) and current of the drive motor 118 are within the control range.

[0334] When the current value measured by the current sensor is within the current management range between the lower current limit and the upper current limit, and the rotational speed value measured by the speed sensor is within the speed management range between the lower speed limit and the upper speed limit, the control unit 1010 can determine that the drive gear 116 and the frame gear 22 are in a normal meshing state.

[0335] When the main body 100 is located at either the left or right end point, it cannot move in either the left or right direction. (See reference...) Figure 30 When the drive motor 118 is rotated to move in a direction where it cannot move, the current rises due to overload and exceeds the upper limit of the current. In addition, when the main body 100 cannot move in the immovable state, the rotation speed of the drive motor 118 is 0 or very low, and therefore falls below the lower limit of the speed.

[0336] When the current value measured by the current sensor is higher than the upper limit of the current and the rotational speed value measured by the speed sensor is lower than the lower limit of the speed, the control unit 1010 can determine that the gears are inoperable even if the drive gear 116 and the frame gear 22 rotate, the main body 100 cannot move.

[0337] The control unit 1010 confirms the meshing state of gears 116 and 22 and can control their movement in the left and right directions. The control unit 1010 can determine whether the position is correct using sensors such as microswitches 320.

[0338] The control unit 1010 can confirm the operating status of gears 116 and 22 and drive motor 118 and control their movement in the left and right directions. The control unit 1010 causes drive motor 118 to rotate for testing. During initial setting, it compares the rotation speed and current stored in memory 1030 to determine the operating status of gears 116 and 22 and drive motor 118.

[0339] After the main body 100 moves to the bottom, it can move to the left or right.

[0340] The first moving device 1021 can move the main body 100 upward (raise) and then downward (lower). The second moving device 1022 can move the main body 100 downward and then move the main body 100 and the frame 11 in the left and right directions.

[0341] Before moving left or right, the control unit 1010 can distinguish between disengagement, normal, and overload operation states with different rotational speeds and currents, and confirm that the main body 100 is installed in the meshing gears 116 and 22. This prevents drive failure caused by gear disengagement and enables safe up-down and left-right movement.

[0342] The control unit 1010 can determine the meshing state, disengagement state, and inoperable state of the drive gear 116 and the frame gear 22 based on the measurement values ​​of the current sensor and the speed sensor.

[0343] In addition, the control unit 1010 rotates the drive motor 116 for a predetermined time before the main body 100 moves, and can determine whether the main body 100 can move based on the rotational speed of the drive motor 116 obtained during the predetermined time period.

[0344] The control unit 1010 causes the drive motor 116 to rotate clockwise, thereby determining whether the main body 100 is located at the end point in the first direction.

[0345] The control unit 1010 causes the drive motor 116 to rotate counterclockwise, thereby determining whether the main body 100 is located at the end point in the second direction, which is opposite to the first direction.

[0346] When the motor current value obtained when the drive motor 116 rotates clockwise is greater than the upper limit value of the current, the control unit 1010 can determine the movement direction of the main body 100 as the second direction.

[0347] When the motor current value obtained when the drive motor 116 is rotated counterclockwise is greater than the upper limit value of the current, the control unit 1010 can determine the movement direction of the main body 100 as the first direction.

[0348] In addition, the control unit 1010 uses the ultrasonic sensor 260 to confirm the movement time in the left and right directions and the boundary (glass frame) of the window 1, and determines whether to start the cleaning operation of the window while moving in the up and down directions.

[0349] Figure 31 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0350] Reference Figure 31The first moving device 1021 can move (lower) the main body 100 in the downward direction (S3110). The first moving device 1021 moves the main body 100 in the vertical direction, and the cleaning module 170 can perform window cleaning.

[0351] The control unit 1010 can determine whether movement is possible in the left or right direction (S3120). Whether movement is possible in the left or right direction can include at least one condition. For safer movement, a two-stage condition can be used to determine whether movement is possible in the left or right direction.

[0352] When the main body 100 moves downward and reaches the correct position at the bottom, it can be sensed by sensors such as the micro switch 320 (S3121). When the micro switch 320 is turned on, the control unit 1010 can determine that it is in the correct position.

[0353] The control unit 1010 can rotate the drive motor 118 for a specified time and confirm the rotation speed and current. The control unit 1010 can distinguish between disengagement, normal, and overload operation states based on the rotation speed and current, and can confirm that the main body 100 is mounted on the meshing gears 116 and 22 (S3122).

[0354] The second moving device 1022 can move the main body 100 and the frame 11 in the left and right directions.

[0355] Before moving left or right, the control unit 1010 distinguishes between disengagement, normal, and overload operation states with different rotation speeds and currents, and confirms that the main body 100 is installed on the meshing gears 116 and 22.

[0356] When the conditions for moving in the left and right directions are met (S3120), the control unit 1010 can complete the preparation for left and right movement (S3130).

[0357] Figure 32 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0358] Reference Figure 32 When the preparation for left and right movement is completed (S3130), it can be determined whether the current position of the main body 100 is the left endpoint (maximum left) or the right endpoint (maximum right) (S3210, S3230).

[0359] The control unit 1010 can cause the drive motor 118 to rotate clockwise for a specified time, thereby determining whether the left side of the frame 11 and the main body 100 is restricted (S3210).

[0360] When the drive motor 118 rotates clockwise, the drive gear 116 can rotate counterclockwise, and the frame gear 22 can rotate clockwise. As a result, the frame 11 and the main body 100 can move to the left.

[0361] Even if the drive motor 118 cannot move when rotated clockwise, the control unit 1010 can determine that the current position is the left end point, and is a left restricted state in which it cannot move to the left (S3210).

[0362] In this case, the control unit 1010 can determine the direction of movement and move to the right (S3220).

[0363] The control unit 1010 causes the drive motor 118 to rotate counterclockwise for a predetermined time, thereby determining whether the right side of the frame 11 and the main body 100 is restricted (S3230).

[0364] When the drive motor 118 rotates counterclockwise, the drive gear 116 can rotate clockwise, and the frame gear 22 can rotate counterclockwise. As a result, the frame 11 and the main body 100 can move to the right.

[0365] Even if the drive motor 118 cannot move when rotated counterclockwise, the control unit 1010 can determine that the current position is the right end point, and is a right-side restricted state in which it cannot move to the right (S3230).

[0366] In this case, the control unit 1010 can determine the direction of movement to move to the left (S3240).

[0367] On the other hand, if it is a state where neither side is restricted from moving (S3210, S3230), it can move to the set default position (S3260).

[0368] According to the embodiment, if the restriction determination is performed n times (S3210, S3230) and the state of being able to move is achieved in all n times (S3210, S3230), the position can be moved to the set default position (S3260).

[0369] Figure 33 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0370] Reference Figure 33 The control unit 1010 causes the drive motor 118 to rotate clockwise for a predetermined time (e.g., 1 second) (S3310). The current sensor can collect motor current data during the predetermined time period (e.g., 10 times with a period of 0.1 seconds) (S3315).

[0371] In addition, the control unit 1010 can determine whether the rotational speed of the drive motor 118 obtained by the speed sensor is below the lower speed limit (S3320).

[0372] On the other hand, the control unit 1010 discards a portion of the collected motor current data (e.g., the two largest values ​​and the two smallest values), and calculates the average value of the remaining data as the current judgment value A (S3325).

[0373] The control unit 1010 can cause the drive motor 118 to rotate counterclockwise for a predetermined time (e.g., 1 second) (S3330). The current sensor can collect motor current data during the predetermined time period (e.g., 10 times with a period of 0.1 seconds) (S3335).

[0374] In addition, the control unit 1010 can determine whether the rotational speed of the drive motor 118 obtained by the speed sensor is below the lower speed limit (S3340).

[0375] On the other hand, the control unit 1010 discards a portion of the collected motor current data (e.g., the two largest values ​​and the two smallest values), and calculates the average value of the remaining data as the current judgment value B (S3345).

[0376] The control unit 1010 compares the current judgment value A with the current upper limit value to determine whether the left side is restricted (S3350). If the left side is restricted (S3350), the control unit 1010 determines the movement direction to the right and causes the drive motor 118 to rotate counterclockwise (S3355).

[0377] The control unit 1010 compares the current judgment value B with the current upper limit value to determine whether the right side is restricted (S3360). If the right side is restricted (S3360), the control unit 1010 determines the movement direction to the left and causes the drive motor 118 to rotate clockwise (S3365).

[0378] When both directions are unrestricted (S3350, S3360), the control unit 1010 increments the error count by 1 (S3370).

[0379] Repeat the above process (S3310 to S3370) until the error count reaches the baseline number (e.g., 3) (S3375).

[0380] When the error count reaches a baseline number (e.g., 3) (S3375), the control unit 1010 causes the drive motor 118 to rotate clockwise for a set maximum time (S3380). This can be set to the time required to reach the left end point regardless of the position of the main body 100.

[0381] The control unit 1010 compares the motor current obtained by the current sensor with the upper limit value of the current (S3385), which can stop the drive motor 118 (SS3390).

[0382] According to the embodiment, the control unit 1010 compares the motor current obtained by the current sensor with the upper limit value of the current (S3385), and can also cause the drive motor 118 to rotate in a counterclockwise direction.

[0383] Figure 34 This is a diagram used for illustrating window cleaning according to one embodiment of this disclosure. Figure 35 This is a sequence diagram illustrating the operation method of a window cleaning device according to an embodiment of the present disclosure.

[0384] Figure 34 The position (time) when the device moves from the leftmost to the right is displayed on the X-axis, and the measurement values ​​based on the sensing data of the ultrasonic sensor 260 and the sensing data of the motor sensor based on the drive motor 118 are displayed on the Y-axis.

[0385] Figure 34 The measurement value of the ultrasonic sensor 260 can be data based on the intensity or quantity of the signal received after reflection. The motor sensor can be a current sensor. Figure 27 The measured values ​​of the motor sensor can be based on current values. The measured values ​​can be the data measured by the sensor itself or secondary data generated during processing.

[0386] Reference Figure 34 and Figure 35 The window cleaning device 10 can clean the window in the order of left window 1a, middle window 1b, and right window 1c.

[0387] When the measurement value of the ultrasonic sensor 260 is greater than the reference value, the control unit 1010 can determine that it is the windows 1a and 1c on both sides. In addition, in the area where the measurement value of the ultrasonic sensor 260 is greater than the reference value, the control unit 1010 can determine the largest b and d areas as the glass frame areas of the windows 1a and 1c on both sides, and the relatively smaller a and e areas as the areas to be cleaned.

[0388] In addition, the control unit 1010 can determine the area c where the measured value of the ultrasonic sensor 260 is less than the reference value as the area corresponding to the middle window 1b.

[0389] While the main body 100 moves in the vertical direction, the cleaning module 170 can clean area a (S3510).

[0390] After cleaning area a is completed, the control unit 1010 determines, as described above, whether it can move in the left or right direction and determines the direction of movement (S3515). The control unit 1010 can then cause the drive motor 118 to rotate according to the determined direction of movement (S3515).

[0391] If the measured value of the ultrasonic sensor 260 is less than the reference value during movement, the control unit 1010 can count the movement time (S3525).

[0392] If the movement time is greater than or equal to the time reference value (S3530), the control unit 1010 stops moving in the left and right directions, increments the middle window count by 1, and resets the movement time (S3535).

[0393] The control unit 1010 can clean the middle window 1b while moving the main body 100 in the vertical direction (S3540).

[0394] On the other hand, the central window 1b is usually wider than the side windows 1a and 1c. Cleaning the wider central window 1b requires multiple cleaning operations. When cleaning the central window 1b, depending on the set pattern, vertical cleaning followed by horizontal movement and then another vertical cleaning can be combined. For example, the central window 1b can be cleaned three times. In this case, a first vertical cleaning followed by horizontal movement can be performed, then a second vertical cleaning followed by horizontal movement, and finally a third vertical cleaning.

[0395] During initial setup, the control unit 1010 compares the setting value stored in the memory 1030 to determine whether the cleaning time corresponds to the time for cleaning the last area of ​​the intermediate window 1b (S3545). When the time condition is met (S3545), the control unit 1010 can clean the last area of ​​the intermediate window 1b (S3550).

[0396] Then, the control unit 1010 determines whether it can move in the left or right direction and determines the direction of movement (S3555). The control unit 1010 can rotate the drive motor 118 according to the determined direction of movement (S3555).

[0397] If the measurement value of the ultrasonic sensor 260 is above the reference value during movement, the control unit 1010 confirms the position of the last right window 1c and controls the drive motor 118 to move to the last interval according to the preset reference (time or distance) (S3565).

[0398] Then, the control unit 1010 can move the main body 100 in the vertical direction while cleaning the right-side window 1c.

[0399] According to this disclosure, a single window cleaning device 10 can clean the middle window 1b and the side windows 1a and 1c. Furthermore, after initial setup, the window cleaning device 10 does not need to be manually moved or operated on the outer windows each time cleaning is performed, thus improving user convenience and safety.

[0400] The preferred embodiments of the present disclosure have been illustrated and described above. However, the present disclosure is not limited to the specific embodiments described above. Various modifications can be made by those skilled in the art without departing from the spirit of the present disclosure as claimed in the claims.

Claims

1. A window cleaning device, comprising: A frame that can be movably mounted on a window frame; The main body, which can be movably mounted on the aforementioned frame and is used for cleaning windows; A first moving device that causes the aforementioned main body to move vertically; and The second moving device causes the main body and the frame to move in the left-right direction. The second moving device includes a drive gear and a drive motor that rotates the drive gear. As the aforementioned drive motor rotates, the aforementioned main body and the aforementioned frame move to the left or right.

2. The window cleaning device according to claim 1, wherein, A gear module is configured in the lower frame of the aforementioned frame. The aforementioned gear module includes a frame gear corresponding to the aforementioned drive gear.

3. The window cleaning device according to claim 2, wherein, The aforementioned drive gear meshes with the aforementioned frame gear. When the drive motor rotates, the main body and the frame move according to the rotation direction of the drive motor.

4. The window cleaning device according to claim 2, wherein, The aforementioned gear module includes a frame moving roller connected to the aforementioned frame gear.

5. The window cleaning device according to claim 4, wherein, The aforementioned frame moving rollers include recesses in the window frame for insertion into the aforementioned window.

6. The window cleaning device according to claim 5, wherein, The aforementioned gear module includes a frame guide roller located below the aforementioned frame moving roller. The aforementioned frame guide rollers contact the side of the window frame inserted into the aforementioned recess.

7. The window cleaning device according to claim 2, wherein, The aforementioned frame gear includes two or more gears. The two or more gears mentioned above are arranged symmetrically around the aforementioned drive gear.

8. The window cleaning device according to claim 1, wherein, The second moving device also includes a reduction gear connected to the drive gear.

9. The window cleaning device according to claim 1, wherein, When the main body is in the preset correct position, the second moving device moves the main body in the left and right direction.

10. The window cleaning device according to claim 9, wherein, The correct position mentioned above is the lowest position in the area where the main body can move vertically.

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