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 main body for cleaning a window, and a moving device for moving the main body, the main body including a housing forming an outer shape, and a cleaning module disposed at one side of the housing for removing foreign substances from the window, the cleaning module including a nozzle for spraying a cleaning liquid, a fan for generating a flow of air, a suction inlet and a discharge outlet formed at a front surface facing the window, an external air flow inlet formed at a rear surface, a switching valve for sending air flowing through the suction inlet or the external air flow inlet to the discharge outlet, and a squeegee for wiping foreign substances attached to the window, the squeegee being tightly attached to the window to remove foreign substances from the window during a descending movement of the main body.

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 offers multiple cleaning modes, thereby enabling it to cope with various setup and external environments.

[0013] The purpose of this disclosure is to provide a window cleaning device that provides an optimal cleaning mode for effectively cleaning windows.

[0014] Methods for solving problems

[0015] The window cleaning device of the present disclosure provides multiple cleaning modes to cope with various setup environments and external environments.

[0016] The window cleaning device of the present disclosure can provide an optimal cleaning mode based on environmental information, thereby effectively cleaning windows.

[0017] The window cleaning device of the present disclosure can clean windows by spraying cleaning fluid and air.

[0018] The window cleaning device of the present disclosure can improve energy efficiency through the optimal cleaning mode.

[0019] One embodiment of the window cleaning device disclosed herein includes: a main body for cleaning windows; and a moving device for moving the main body.

[0020] The aforementioned main body includes: an outer shell, which forms a shape; and a cleaning module disposed on one side of the outer shell for removing foreign objects from the window.

[0021] The cleaning module includes: a nozzle that sprays cleaning fluid; an inlet and an outlet formed on the front surface facing the window; a fan that generates airflow; and a scraper that wipes away foreign objects adhering to the window, wherein the scraper is pressed against the window to remove foreign objects during the downward movement of the main body.

[0022] One embodiment of the cleaning module disclosed herein includes: a nozzle that sprays cleaning fluid; a fan that generates airflow; an intake port and an exhaust port formed on a front surface facing the window; an external air inlet formed on a rear surface; a switching valve that directs air flowing in through the intake port or the external air inlet to the exhaust port; and a scraper that removes foreign matter adhering to the window, wherein the scraper is pressed against the window to remove foreign matter during the downward movement of the main body.

[0023] During the upward movement of the main body, the cleaning module can spray the cleaning fluid.

[0024] During the descent and movement of the main body, the cleaning module can spray the cleaning fluid.

[0025] During the upward movement of the main body, the cleaning module sprays the cleaning fluid and the fan operates. The switching valve directs air flowing in through the intake port to the exhaust port.

[0026] During the upward movement of the main body, the fan in the cleaning module operates. The switching valve directs air flowing in through the external air inlet to the outlet.

[0027] The aforementioned moving device can move the aforementioned main body in the left and right directions after the main body has descended.

[0028] The aforementioned moving device can move the aforementioned main body in the up-down direction after the aforementioned main body has moved in the left-right direction.

[0029] The cleaning module can perform cleaning operations while the main body moves in the vertical direction.

[0030] The aforementioned windows may include the central window and the left and right windows of the central window.

[0031] The aforementioned window cleaning device can clean the left-side window or the right-side window, clean the middle window, and clean any remaining uncleaned windows in the left-side window and the right-side window.

[0032] The aforementioned nozzle and scraper may be disposed on the aforementioned front surface.

[0033] The aforementioned outlet may be located above the aforementioned inlet.

[0034] The nozzle can be located between the outlet and the inlet.

[0035] The window cleaning device also includes: a frame that is movably mounted on the window frame, and the main body that is movably mounted on the frame.

[0036] The aforementioned moving device may include: a first moving device that moves the main body in a vertical direction; and a second moving device that moves the main body and the frame in a horizontal direction.

[0037] The window cleaning device may also include a control unit that controls the nozzle, the fan and the switching valve.

[0038] One embodiment of the window cleaning device disclosed herein includes a main body for cleaning windows and a moving device for moving the main body. The main body includes a housing with a defined shape and a cleaning module disposed on one side of the housing for removing foreign objects from the window. The cleaning module includes a scraper for wiping away foreign objects attached to the window. During the downward movement of the main body, the scraper is pressed against the window to remove the foreign objects from the window.

[0039] Invention Effects

[0040] 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.

[0041] 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.

[0042] According to at least one embodiment of this disclosure, multiple cleaning modes can be provided to cope with various setup environments and external environments.

[0043] According to at least one embodiment of this disclosure, an optimal cleaning mode can be provided, thereby enabling effective cleaning of windows.

[0044] 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

[0045] 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.

[0046] Figure 2 This is a perspective view of a window cleaning device according to an embodiment of the present disclosure.

[0047] Figure 3 This is a perspective view of the framework of one embodiment of the present disclosure.

[0048] Figure 4 This is a perspective view of one side of the main body of an embodiment of this disclosure.

[0049] Figure 5 This is a perspective view of the main body of an embodiment of this disclosure from another side.

[0050] Figure 6 It shows that Figure 5 A diagram of a cross-section cut off from one side.

[0051] Figure 7 This is a diagram illustrating the components disposed inside a housing in one embodiment of the present disclosure.

[0052] 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.

[0053] 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.

[0054] Figure 10 This is a diagram illustrating the structure of a body connected to a guide rail according to an embodiment of this disclosure.

[0055] Figure 11 This is a diagram used to illustrate a gear module and a drive gear according to an embodiment of the present disclosure.

[0056] Figure 12 This is a diagram used to illustrate the state in which the main body of an embodiment of this disclosure moves upward.

[0057] 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.

[0058] Figure 14 This is a perspective view for illustrating a cleaning module and a module moving device according to an embodiment of the present disclosure.

[0059] Figure 15 This is a side cross-sectional view used to illustrate a cleaning module of one embodiment of the present disclosure.

[0060] 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.

[0061] Figure 17 This is a block diagram of a window cleaning device according to an embodiment of the present disclosure.

[0062] Figures 18 to 24 These figures are referenced when illustrating various cleaning modes of embodiments of the present disclosure. Detailed Implementation

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] Unless otherwise defined in the text, the singular can mean multiple.

[0068] Hereinafter, with reference to the accompanying drawings, a window cleaning device according to an embodiment of the present invention will be described.

[0069] Reference Figure 1 The window cleaning device installed in the window frame is described.

[0070] Multiple windows 1 are configured in the window frame 2.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] Mesh 294 can be an insect screen to prevent foreign objects or insects from entering the room.

[0078] 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.

[0079] 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.

[0080] Reference Figure 2 The components of the frame and main body are described.

[0081] 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.

[0082] The frame 11 includes a pair of side frames 12a and 12b that extend vertically and are spaced apart horizontally.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] The main body 100 can move along the guide rail 18 in the vertical direction.

[0087] 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.

[0088] Inside the lower housing 110, there may be components for cleaning windows and components for moving the main body 100 in the vertical direction.

[0089] 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.

[0090] The upper housing 104 may be formed into a curved shape. The upper housing 104 may have at least one inclined surface.

[0091] Reference Figure 3 Further explanation of the framework structure is provided.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] Multiple frame gears 22, which are rotatably configured on the lower frame 16 and move along the window frame 2, can be configured inside the gear module 20.

[0096] Reference Figure 4 The main body's components are described.

[0097] The main body 100 includes an outer shell 102 that forms its shape.

[0098] The housing 102 includes a lower housing 110 and an upper housing 104 disposed above the lower housing 110.

[0099] Spaces for arranging multiple components are formed inside the lower housing 110 and the upper housing 104.

[0100] A solar panel 106 is configured on the upper housing 104.

[0101] 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.

[0102] 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 ).

[0103] 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.

[0104] 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.

[0105] 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.

[0106] Reference Figure 5 The other components of the main body will be described.

[0107] 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.

[0108] When the main body 100 is installed onto the frame 11, the first surface 112 is configured to face the window.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] Here, the front surface 174 of the cleaning module 170 may be a surface facing the window.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] 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 ).

[0122] 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.

[0123] 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.

[0124] Reference Figure 6 The components and configuration of the cleaning module and the mesh module 290 are described.

[0125] The cleaning module 170 is configured to protrude from the first surface 112 of the housing 102.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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.

[0131] Depending on the configuration of the main body 100, the length of the exposed mesh 294 in the vertical direction changes.

[0132] Reference Figure 7 Additional descriptions are provided of the internal components of the main body.

[0133] 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.

[0134] Fan 230 exhausts air through outlet 192. Fan 230 draws in air through inlet 190.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] The cleaning module 170 includes a cleaning body 172 that forms a flow path for airflow inside.

[0140] 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] Nozzle 240 is positioned below outlet 192. Nozzle 240 is positioned above inlet 190.

[0146] 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.

[0147] Reference Figure 9 The structure in front of the cleaning module will be explained.

[0148] 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.

[0149] The second front surface 174b is disposed below the first front surface 174a.

[0150] 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.

[0151] 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.

[0152] 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.

[0153] 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.

[0154] An outlet 192 and an inlet 190 are disposed below the scraper 250. The inlet 190 is disposed below the outlet 192.

[0155] 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.

[0156] 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.

[0157] 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.

[0158] 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.

[0159] An intake port 190 and an exhaust port 192 are provided on the second front surface 174b.

[0160] An intake flow path 194 is formed inside the cleaning body 172 to allow airflow from the intake port 190. The lower surface of the intake flow path 194 has a shape that slopes downwards towards the rear.

[0161] The suction flow path 194 extends rearward. Therefore, air or cleaning fluid flowing into the suction flow path 194 through the suction port 190 moves rearward. The suction flow path 194 has a shape that narrows in the left-right direction as it approaches the rear.

[0162] A connecting flow path 198 is formed behind the intake flow path 194. The connecting flow path 198 is located behind the intake flow path 194 and extends in a left-right direction. A fan 230 is arranged on one side of the connecting flow path 198 to direct the air flowing through the intake flow path 194 to the connecting flow path 198.

[0163] An exhaust flow path 196 is disposed above the intake flow path 194. A gap space 222, serving as a closed area, can be formed above the intake flow path 194. The exhaust flow path 196 extends forward from the area where the fan 230 is disposed. The exhaust flow path 196 has a structure that expands to the left and right as it approaches the front.

[0164] The discharge flow path 196 has a structure that expands upward and downward from the front portion. The discharge flow path 196 also has a structure that expands downward from the front portion. The discharge flow path 196 includes a front discharge flow path 196a that expands downward from the front portion.

[0165] The length of the flow path formed in the vertical direction of the front discharge flow path 196a can be increased. A discharge port 192 is formed at the lower part of the front discharge flow path 196a.

[0166] The angle of inclination θ1 formed by the upper surface of the outlet 192 and the front surface 174 is smaller than the angle of inclination θ2 formed by the upper surface of the inlet 190 and the front surface 174.

[0167] As the main body 100 moves downward, cleaning fluid is sprayed through nozzle 240. Simultaneously, air is sprayed through outlet 192 as the main body 100 moves downward.

[0168] The angle θ1 formed by the upper surface of the outlet 192 and the front surface 174 is smaller than the angle θ2 formed by the upper surface of the inlet 190 and the front surface 174. Therefore, the air discharged from the outlet 192 can be reflected by the window and flow into the inlet 190.

[0169] Additionally, the cleaning fluid sprayed through nozzle 240 can also flow into suction port 190 via airflow. That is, the cleaning fluid or air travels the shortest distance to suction port 190 and flows into it.

[0170] Reference Figure 10 The shell groove and moving parts of the main body are described.

[0171] 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.

[0172] 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.

[0173] 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.

[0174] After the scraper 250 is pressed against the window 1, the moving part 124 moves the housing 102 downward.

[0175] 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.

[0176] 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.

[0177] Figure 11 The gear module and drive gear configured in the frame are described.

[0178] 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.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] Reference Figure 12 The vertical movement of the window cleaning device is explained.

[0184] 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.

[0185] 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.

[0186] The cleaning module 170 can move downwards along the window 1 while wiping away foreign objects attached to the window 1.

[0187] 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.

[0188] Reference Figure 13 The left-right movement of the window cleaning device is explained.

[0189] 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.

[0190] As the frame 11 moves, the main body 100 configured on the frame 11 also moves.

[0191] 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.

[0192] 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.

[0193] The frame gear 22 is in close contact with the window frame 2, and the frame 11 can be moved by friction.

[0194] 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.

[0195] Reference Figure 14 The module moving device for changing the configuration of the cleaning module is described.

[0196] 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.

[0197] 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.

[0198] 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.

[0199] 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.

[0200] The transmission component 276 rotates by the rotational force of the module motor 272, causing the cleaning body 172 to move.

[0201] The modular moving device 270 includes a modular motor gear 274 that rotates by the operation of the modular motor 272.

[0202] 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.

[0203] 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.

[0204] The first transmission gear 280 and a pair of second transmission gears 282 are connected to the rotating rod 278 and rotate together.

[0205] 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.

[0206] Reference Figure 15 The pressure sensor that senses the contact of the scraper is explained.

[0207] 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.

[0208] Pressure sensor 264 can precisely sense whether scraper 250 is in contact with the window.

[0209] 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.

[0210] Reference Figure 15 The configuration of the switching valve and the resulting airflow are explained.

[0211] A valve motor (not shown) for changing the configuration of the switching valve 218 is disposed on one side of the upper connecting part 210. The valve motor changes the configuration of the switching valve 218, thereby opening the communication port 216 or opening the external air inlet 214.

[0212] The window cleaning device can operate in a mode where the connecting hole 216 is closed by the switching valve 218 and the fan 230 is in operation.

[0213] The window cleaning device can operate in a mode in which the external air inlet 214 is closed by the switching valve 218 and the fan 230 and the first pump 150 (or "pump") are in operation.

[0214] The rotational speed of fan 230 in the mode of closing external airflow inlet 214 can be greater than the rotational speed of fan 230 in the mode of closing connecting hole 216. After running in the mode of closing connecting hole 216, the mode of closing external airflow inlet 214 can be run.

[0215] The switching valve 218 opens the communication port 216 when the external air inlet 214 is closed. When the fan 230 is operating, air is discharged through the discharge path 196 and through multiple outlets 192.

[0216] Additionally, the air flowing into the intake 190 due to the operation of the fan 230 flows into the intake flow path 194. The air flowing in the intake flow path 194 passes through the water collection section 200 and the upper connecting section 210 and flows into the connecting flow path 198.

[0217] Air flowing from the water collection section 200 to the upper connection section 210 has foreign matter removed as it passes through the filter 212.

[0218] Air can flow in through the suction port 190. In addition, when cleaning fluid is sprayed from the nozzle 240, the cleaning fluid can flow into the suction flow path 194 through the suction port 190.

[0219] The cleaning fluid flowing into the suction flow path 194 is collected inside the water collection section 200. Therefore, the cleaning fluid can be collected inside the water collection section 200.

[0220] When the second pump 152 is in operation, the cleaning fluid collected in the water collection section 200 can be discharged from the water collection section 200 to the outside of the cleaning module 170.

[0221] When the connecting port 216 is closed, the switching valve 218 opens the external air inlet 214. When the fan 230 is operating, air is discharged through the exhaust path 196 and through multiple exhaust ports 192.

[0222] Additionally, due to the operation of the fan 230, air flows through the external air inlet 214 to the connecting flow path 198. That is, the air flowing into the upper connecting part 210 through the external air inlet 214 flows to the connecting flow path 198.

[0223] The connecting hole 216 is closed, thus restricting the flow of air through the suction port 190 to the suction flow path 194.

[0224] Air is discharged through multiple outlets 192, thus removing foreign objects attached to the window.

[0225] Reference Figure 16 The movement of the cleaning module is explained.

[0226] 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.

[0227] 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.

[0228] When the main body 100 moves upward, the cleaning module 170 can be configured in the first position P1.

[0229] The first position P1 can be the state in which the cleaning module 170 is moved backward by the module moving device 270.

[0230] 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.

[0231] When the main body 100 moves downward, the cleaning module 170 can be configured in the second position P2.

[0232] The second position P2 can be the state in which the cleaning module 170 is moved forward by the module moving device 270.

[0233] 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.

[0234] 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.

[0235] The precision of the interval between window 1 and cleaning module 170 sensed by ultrasonic sensor 260 may decrease.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] After the scraper 250 is pressed against the window 1, the moving part 124 moves the housing 102 downward.

[0242] 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.

[0243] 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.

[0244] Figure 17 This is a block diagram of a window cleaning device according to an embodiment of the present disclosure.

[0245] 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.

[0246] 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.

[0247] The window cleaning device 10 may include a memory 1030, a sensing unit 1050, a communication unit 1060, an interface 1040, etc.

[0248] 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.

[0249] 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.

[0250] 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.

[0251] 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.

[0252] 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.

[0253] 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 output value of the ultrasonic sensor 260. Here, the output value 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.

[0254] For example, the output 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.

[0255] Alternatively, the output 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.

[0256] 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.

[0257] 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.

[0258] In addition, temperature sensors can measure temperature, humidity sensors can measure humidity, and air quality sensors can measure air quality.

[0259] 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.

[0260] 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.

[0261] 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.

[0262] 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.

[0263] Users can control the window cleaning device 10 from indoors via user terminals such as smartphones.

[0264] 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.

[0265] According to an embodiment, the input interface 1041 may include a receiver for receiving control commands sent by a remote control device (not shown).

[0266] Users can control the window cleaning device 10 remotely from indoors.

[0267] 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.

[0268] 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.

[0269] 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.

[0270] 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.

[0271] 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.

[0272] 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.

[0273] 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.

[0274] 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.

[0275] 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.

[0276] 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.

[0277] 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.

[0278] 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.

[0279] 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.

[0280] 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.

[0281] 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.

[0282] The window cleaning device 10 can be installed on ordinary window frames and insect screen frames, and cleans windows by moving up and down and left and right regardless of the shape and number of windows.

[0283] The window cleaning device 10 offers multiple spray modes.

[0284] The control unit 1010 can control the nozzle 240 that sprays the cleaning fluid and the fan 230 that generates airflow to achieve various spraying modes. When necessary, the control unit 1010 can operate the first pump 150 to supply cleaning fluid.

[0285] According to one embodiment, the nozzle 240 is turned on / off under the control of the control unit 1010, thereby controlling whether spraying occurs. In another embodiment, cleaning fluid is supplied through the nozzle 240 as the first pump 150 operates. In this specification, operating the nozzle 240 includes not only turning the nozzle 240 on, but also operating the first pump 150.

[0286] On the other hand, the control unit 1010 can control the switching valve 218 to selectively open and close the external air inlet 214 formed on the rear surface and into which external air flows in, and the internal connecting hole 216.

[0287] The control unit 1010 can control the switching valve 218 to open the external air inlet 214 and close the connecting hole 216. As a result, external air from the cleaning body 172 can be sent to the exhaust flow path 196 and the exhaust outlet 192.

[0288] The control unit 1010 can control the switching valve 218 to close the external air inlet 214 and open the communication hole 216. As a result, the air flowing through the intake port 190 and the intake flow path 194 can be sent to the exhaust flow path 196 and the exhaust port 192.

[0289] The control unit 1010 can control the nozzle 240, fan 230, and switching valve 218 to provide more diverse spray patterns.

[0290] For example, the spraying modes may include a simultaneous spraying mode that sprays and recovers both cleaning fluid and air, an air-only spraying mode that sprays only air, a cleaning fluid-only spraying mode that sprays only cleaning fluid, and an air spraying mode that sprays and recovers both cleaning fluid and air.

[0291] In simultaneous spray mode, the control unit 1010 can activate the nozzle 240 to spray cleaning fluid and the fan 230 to spray air. Additionally, the control unit 1010 can control the switching valve 218 to close the external air inlet 214 and open the connecting hole 216. This allows the sprayed cleaning fluid and air to be recovered through the suction port 190, and the air flowing through the suction port 190 to be sent to the exhaust port 192.

[0292] In the air-only spray mode, the control unit 1010 can activate the fan 230 to spray air. When large pieces of sand adhere to the glass surface and are difficult to remove, only the exhaust air can be sprayed to clean the glass surface.

[0293] According to the settings, in the above-mentioned air-only injection mode, the control unit 1010 can control the switching valve 218 to open the external air inlet 214 and close the connecting hole 216. The mode of opening the external air inlet 214 and injecting only air can also be named the external air inflow mode.

[0294] According to the settings, in the external air inflow mode, the control unit 1010 can make the fan 230 stop working, and control the switching valve 218 to open the external air inlet 214 and close the connecting hole 216, so that only external air flows in.

[0295] In the single-spray cleaning fluid mode, the control unit 1010 can activate the nozzle 240 to spray air. In the event of a very strong wind in the external environment, windows can be cleaned simply by spraying cleaning fluid, and the cleaning fluid can be easily evaporated by the wind.

[0296] In air spray mode, the control unit 1010 can activate the nozzle 240 to spray cleaning fluid and the fan 230 to spray air. Additionally, the control unit 1010 can control the switching valve 218 to open the external air inlet 214 and close the connecting hole 216, thereby preventing the sprayed cleaning fluid and air from being recovered through the intake 190. Furthermore, external air can be sent to the exhaust outlet 192. Even in rainy weather, the windows can be cleaned using the cleaning fluid and the exhausted air.

[0297] The above spray patterns can be used to achieve various cleaning modes.

[0298] Figures 18 to 24 The reference diagram illustrates various cleaning modes of embodiments of this disclosure.

[0299] Reference Figures 18 to 24 In the window cleaning device 10, the main body 100 can clean the window 1 while moving up and down. After performing cleaning once or more while moving up and down, the window cleaning device 10 can move left and right to clean the next window or area in sequence.

[0300] Reference Figures 18 to 24 Window 1 may include a middle window 1b and a left window 1a and a right window 1c of the middle window 1b. The window cleaning device 10 may clean the left window 1a, the middle window 1b, and the right window 1c in that order. Conversely, the window cleaning device 10 may clean the right window 1c, the middle window 1b, and the left window 1a in that order.

[0301] The scraper 250 can be pressed against the window to remove foreign objects adhering to it. When cleaning with the scraper 250, the foreign objects may fall to the lower side. Therefore, using the scraper 250 when the main body 100 is descending is more effective than when the main body 100 is rising. The control unit 1010 can press the scraper 250 against the window to remove foreign objects during the descent of the main body 100.

[0302] Figures 18 to 24 The diagram represents a typical cleaning pattern, which is related to water usage, time, and cleaning power, thus allowing for the application of various cleaning methods.

[0303] For example, multiple cleaning modes may include a first cleaning mode of rising spray (non-recovery), falling cleaning, a second cleaning mode of falling spray and falling cleaning, a third cleaning mode of rising spray and falling cleaning, and a fourth cleaning mode of rising air and falling cleaning.

[0304] In the first cleaning mode, when the main body 100 rises, it only sprays cleaning fluid and rises; when the main body 100 falls, it is scraped down by the scraper 250 and the contaminants are collected downwards.

[0305] In the first cleaning mode, during the upward movement of the main body 100, the cleaning module 170 can spray cleaning fluid. (See reference...) Figure 18 During the upward movement of the main body 100, the control unit 1010 can control it to a cleaning fluid-only spray mode where only cleaning fluid is sprayed.

[0306] Reference Figure 19 During the descent and movement of the main body 100, the cleaning module 170 can press the scraper 250 against the window 1 to remove foreign objects.

[0307] Reference Figure 20 The control unit 1010 can clean the windows in the following order: left window 1a, middle window 1b, and right window 1c. The first moving device 1021 can move the main body 100 upward (raise) and then move it downward (lower). During the upward and downward movement of the main body 100, the cleaning module 170 can perform the cleaning operation.

[0308] After the main body 100 moves downward, the second moving device 1022 can move the main body 100 and the frame 11 in the left and right directions. In addition, after the main body 100 moves in the left and right directions, the first moving device 1021 can move the main body 100 in the upward direction (raise) and then move the main body 100 in the downward direction (lower).

[0309] In the first cleaning mode, the control unit 1010 can be controlled to rise at... Figure 18 The cleaning fluid is sprayed separately during descent. Figure 19 Operate using the scraper cleaning mode.

[0310] The first cleaning mode has the advantage of shortening the drive time. However, since water flows in the direction of gravity, a certain amount of cleaning fluid needs to be sprayed while the water is rising.

[0311] In the second cleaning mode, no operation is performed while the main body 100 is rising; in the first cleaning mode, spraying is completed while the main body 100 is descending. In the second cleaning mode, the cleaning module 170 can spray cleaning fluid during the descent of the main body 100. (Refer to...) Figure 21 During the downward movement of the main body 100, the control unit 1010 can control it to a cleaning fluid-only spray mode where only cleaning fluid is sprayed.

[0312] Additionally, the control unit 1010 raises the main body 100 again. In the second cleaning mode, no operation is performed when the main body 100 rises again, and the scraper 250 scrapes down and collects the contaminants when the main body 100 descends again.

[0313] Reference Figure 22 When cleaning is performed in the order of left window 1a, middle window 1b, and right window 1c, the control unit 1010 controls the operation to be performed only when the window is lowered.

[0314] The control unit 1010 can be controlled so that, within the same window, when the main body 100 descends once, Figure 21 The cleaning fluid is sprayed separately in the operation mode. When the main body descends twice at 100, the cleaning fluid is sprayed separately. Figure 19 Operate using the scraper cleaning mode.

[0315] In the third cleaning mode, the main body 100 rises and simultaneously sprays cleaning fluid and air, and recovers the cleaning fluid.

[0316] Reference Figure 23 During the upward movement of the main body 100, the cleaning module 170 sprays cleaning fluid and air and recovers the cleaning fluid. For this purpose, the nozzle 240 and fan 230 are activated, and the switching valve 218 can be operated to send the air flowing in through the intake port 190 to the exhaust port 192. That is, during the upward movement of the main body 100, the control unit 1010 can be controlled to a simultaneous spraying mode.

[0317] In the third cleaning mode, the control unit 1010 can be controlled to lower the main body 100 as follows: Figure 19 Operate using the scraper cleaning mode.

[0318] In addition, such as Figure 20 As shown, in the third cleaning mode, the control unit 1010 can clean the left window 1a, the middle window 1b, and the right window 1c in that order. In the third cleaning mode, the control unit 1010 controls the operation to be in simultaneous spray mode when rising and in scraper cleaning mode when falling.

[0319] The third cleaning mode can shorten the cleaning time and reduce the use of cleaning solution.

[0320] Reference Figure 24 During the upward movement of the main body 100, the cleaning module 170 can spray air. During the upward movement of the main body 100, the control unit 1010 can control it to a single air spray mode. In the fourth cleaning mode, the control unit 1010 can control it to spray air only when the main body 100 is descending. Figure 19 Operate using the scraper cleaning mode.

[0321] In the air-only injection mode, the switching valve 218 can be operated to send the air flowing in through the external air inlet 214 to the outlet 192.

[0322] In addition, according to the setting of the air injection mode, the control unit 1010 controls the fan 230 to work during the upward movement of the main body 100.

[0323] In the fourth cleaning mode, only air is sprayed; therefore, this mode is suitable for operation in sandstorms or rainy weather. The window cleaning device 10 can effectively clean windows by providing the optimal cleaning mode based on environmental information.

[0324] In addition, such as Figure 20As shown, in the fourth cleaning mode, the control unit 1010 can clean the left window 1a, the middle window 1b, and the right window 1c in that order. In the fourth cleaning mode, the control unit 1010 controls the operation to use a single air jet mode when rising and a scraper cleaning mode when descending.

[0325] According to this disclosure, the window cleaning device 10 provides multiple cleaning modes to cope with various installation environments and external environments, thereby improving energy efficiency through the optimal cleaning mode.

[0326] 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: The main body, used for cleaning windows; and The moving device causes the aforementioned main body to move. The aforementioned entities include: The outer shell, which forms its shape; and A cleaning module, disposed on one side of the aforementioned housing, is used to remove foreign objects from the aforementioned window. The cleaning module mentioned above includes: The nozzle sprays the cleaning fluid. A fan, which generates airflow; The intake and exhaust ports are formed on the front surface facing the aforementioned window; External airflow inlet, which is formed on the rear surface; A switching valve that directs air flowing in through the aforementioned intake port or the aforementioned external air inlet to the aforementioned exhaust port; and A scraper is used to remove foreign objects adhering to the aforementioned windows. During the descent and movement of the aforementioned main body, the aforementioned scraper is pressed tightly against the aforementioned window to remove foreign objects from the aforementioned window.

2. The window cleaning device according to claim 1, wherein, During the upward movement of the main body, the cleaning module sprays the cleaning fluid.

3. The window cleaning device according to claim 1, wherein, During the descent and movement of the aforementioned main body, the aforementioned cleaning module sprays the aforementioned cleaning fluid.

4. The window cleaning device according to claim 1, wherein, During the upward movement of the main body, the cleaning module sprays the cleaning fluid and the fan operates. The aforementioned switching valve directs the air flowing in through the aforementioned inlet to the aforementioned outlet.

5. The window cleaning device according to claim 1, wherein, During the upward movement of the aforementioned main body, the aforementioned fan in the aforementioned cleaning module operates. The aforementioned switching valve directs the air flowing in through the aforementioned external air inlet to the aforementioned outlet.

6. The window cleaning device according to claim 1, wherein, After the main body moves downward, the aforementioned moving device causes the main body to move in the left-right direction.

7. The window cleaning device according to claim 1, wherein, The aforementioned moving device moves the aforementioned main body in the vertical direction after the aforementioned main body moves in the left-right direction.

8. The window cleaning device according to claim 7, wherein, As the main body moves vertically, the cleaning module performs the cleaning operation.

9. The window cleaning device according to claim 1, wherein, The aforementioned windows include the central window and the windows to its left and right. The aforementioned window cleaning device cleans either the left-side window or the right-side window. The aforementioned window cleaning device cleans the aforementioned intermediate window. The aforementioned window cleaning device cleans the remaining uncleaned windows in the aforementioned left-side window and the aforementioned right-side window.

10. The window cleaning device according to claim 1, wherein, The aforementioned nozzle and scraper are disposed on the aforementioned front surface.

Images