Sweeping robot, base station and cleaning device

Abstract

A cleaning device includes: a sweeping robot including a main body having a lower portion on which a wet wipe can be detachably mounted; and a base station on which the sweeping robot can be placed, in which the base station comprises: a water supply tub provided to store water; a cleaning chamber configured so that the wet wipe can be cleaned in the cleaning chamber while the robot cleaner is placed on the base station and the wet wipe is attached to the lower portion of the main body; a steam generating device for generating steam by using the water stored in the water supply tub; a pump configured to pump water stored in the water supply tub to the outside of the water supply tub; a first pipe configured to guide the water pumped to the outside of the water supply tub by the pump to the cleaning chamber; and a second pipe configured to guide the water pumped to the outside of the water supply tub by the pump to the steam generating device.

Description

Technical Field

[0001] This disclosure relates to a sweeping robot, a base station, and a cleaning device. Background Technology

[0002] Typically, a robotic vacuum cleaner is a device that moves and cleans a space automatically by sucking up dust and other dirt accumulated on the floor without user intervention. The robotic vacuum cleaner travels through and cleans the space.

[0003] The robot vacuum cleaner uses distance sensors to determine the distance to obstacles such as furniture, office supplies, or walls placed in the cleaning area, and selectively drives the left and right wheel motors of the robot vacuum cleaner to change direction while cleaning the cleaning area.

[0004] Recently, not only have robotic vacuum cleaners emerged that suck up dust and other foreign objects from the floor, but they have also appeared that wipe away dust and other foreign objects from the floor. These robotic vacuum cleaners can perform wet cleaning using a damp cloth. Summary of the Invention Technical issues

[0005] One aspect of this disclosure is to provide a cleaning device with improved ease of use.

[0006] One aspect of this disclosure is to provide a cleaning apparatus that improves cleaning efficiency.

[0007] One aspect of this disclosure is a cleaning device that facilitates the management of wet wipes.

[0008] One aspect of this disclosure provides a cleaning apparatus including a robot vacuum cleaner and a base station capable of supplying steam toward a wet mop of the robot vacuum cleaner.

[0009] The technical problems to be solved by this disclosure are not limited to those mentioned above. Those skilled in the art to which this disclosure pertains may clearly understand other technical problems not mentioned from the following description. Technical solution

[0010] According to one embodiment of this disclosure, a cleaning device includes: a robotic vacuum cleaner including a main body having a lower portion capable of detachably mounting a wet mop; and a base station capable of housing the robotic vacuum cleaner, wherein the base station includes: a water tank configured to store water; a cleaning chamber configured to allow the wet mop to be cleaned in the cleaning chamber during the period when the robotic vacuum cleaner is placed on the base station and the wet mop is mounted on the lower portion of the main body; a steam generating device for generating steam using water stored in the water tank; a pump configured to pump water stored in the water tank to the outside of the water tank; a first conduit configured to guide water pumped to the outside of the water tank by the pump to the cleaning chamber; and a second conduit configured to guide water pumped to the outside of the water tank by the pump to the steam generating device.

[0011] According to one embodiment of this disclosure, the base station may include: a valve connected to the first piping and the second piping; and a third piping located between the pump and the valve, and configured to direct water pumped by the pump to the outside of the water supply tank to the valve. The valve may be configured to deliver water pumped by the pump to the outside of the water supply tank from the third piping to the first piping, or to deliver water pumped by the pump to the outside of the water supply tank from the third piping to the second piping.

[0012] According to one embodiment of this disclosure, the valve may be a first valve. The base station may include: a fourth piping configured to guide water pumped by the pump to the outside of the water supply tank to the sweeping robot when the sweeping robot is placed on the base station; a second valve connected to the third piping and the fourth piping; and a fifth piping connecting the pump and the second valve. The second valve may be configured to transport water pumped by the pump to the outside of the water supply tank from the fifth piping to the third piping, or to transport water pumped by the pump to the outside of the water supply tank from the fifth piping to the fourth piping.

[0013] According to one embodiment of this disclosure, the base station may include: a third piping configured to guide steam generated in the steam generating device to the cleaning chamber, and including a first end communicating with the steam generating device and a second end communicating with the cleaning chamber.

[0014] According to one embodiment of this disclosure, the base station may include a cleaning frame detachably mounted to the cleaning chamber and including a steam jet nozzle. During the period when the cleaning frame is mounted to the cleaning chamber, the robotic vacuum cleaner is placed on the base station, and the wet cloth is mounted on the lower part of the main body, the cleaning frame may be configured to rub against the wet cloth, and the steam jet nozzle may be configured to spray steam guided to the cleaning chamber through the third piping toward the wet cloth.

[0015] According to one embodiment of this disclosure, the second piping may be connected to the lower part of the steam generating device. The third piping may be connected to the upper part of the steam generating device.

[0016] According to one embodiment of this disclosure, the steam generating device may be arranged below the water supply tank. The third piping may include a bend located at a height between the steam generating device and the water supply tank.

[0017] According to one embodiment of this disclosure, during the period when the sweeping robot is placed on the base station and the wet cloth is installed on the lower part of the body, at least a portion of the steam jet can be arranged below the lower surface of the wet cloth.

[0018] According to one embodiment of this disclosure, the second end of the third pipe may be configured to be larger than the size of the steam injection port.

[0019] According to one embodiment of this disclosure, the bottom of the cleaning chamber may be configured to slope downwards along the direction in which the sweeping robot enters the base station.

[0020] According to one embodiment of the present disclosure, the base station may include: a steam tank capable of containing water guided through the second piping; a heater configured to heat the water contained in the steam tank; a water level sensor configured to sense the water level in the steam tank; and a control unit that operates the heater based on a preset water level sensed by the water level sensor.

[0021] According to one embodiment of the present disclosure, the base station may include: a steam tank capable of containing water guided through the second piping; a heater equipped for heating the water contained in the steam tank; a temperature sensor equipped for sensing the temperature inside the steam tank; and a control unit that interrupts the heater based on the temperature sensed by the temperature sensor reaching a preset temperature.

[0022] According to one embodiment of this disclosure, while the robotic vacuum cleaner is placed on the base station and the wet cloth is installed on the lower part of the main body, the base station can control the steam generating device to perform a steam generating operation based on the completion of a cleaning operation of cleaning the wet cloth in the cleaning chamber or receiving a steam operation signal from at least one of the robotic vacuum cleaner or the user equipment.

[0023] According to one embodiment of this disclosure, the base station can send a steam start signal to the sweeping robot based on the start of the steam generation operation.

[0024] According to one embodiment of this disclosure, the robotic vacuum cleaner can rotate the wet mop based on receiving the steam start signal from the base station.

[0025] The control method for a sweeping robot according to the present disclosure may include the following steps: returning to a base station in response to meeting a base station return condition; and rotating a wet mop in response to receiving a steam start signal from the base station. Attached Figure Description

[0026] These and / or other embodiments of this disclosure will become apparent and more readily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0027] Figure 1 This is a diagram showing a robotic vacuum cleaner in a cleaning apparatus according to an embodiment in a state where it is detached from a base station.

[0028] Figure 2 This is a diagram showing the state of a robotic vacuum cleaner in a cleaning apparatus according to an embodiment, positioned at a base station.

[0029] Figure 3 It is shown Figure 2 The diagram shows the rear of the cleaning device.

[0030] Figure 4 This is a diagram illustrating a robotic vacuum cleaner according to one embodiment.

[0031] Figure 5 It is shown Figure 4 The image shown shows the back of the robotic vacuum cleaner.

[0032] Figure 6 It is shown Figure 4 The image shows the lower part of the robotic vacuum cleaner.

[0033] Figure 7 This is a diagram illustrating a base station according to one embodiment.

[0034] Figure 8 It is shown Figure 7 The diagram shows the back of the base station.

[0035] Figure 9 It is shown Figure 7 A diagram of the rear surface of the base station.

[0036] Figure 10 This is a diagram showing a portion of a base station according to one embodiment.

[0037] Figure 11 This is a diagram showing the state in which the cleaning frame in a base station according to an embodiment is separated from the cleaning chamber.

[0038] Figure 12 This is a view showing a side cross-section of a base station according to one embodiment.

[0039] Figure 13 This is a schematic diagram illustrating a portion of a base station configuration according to one embodiment.

[0040] Figure 14 The diagram illustrates the waste collection operation of a base station according to one embodiment.

[0041] Figure 15 The water supply operation of a sweeping robot according to an embodiment of the base station is shown.

[0042] Figure 16 This is a diagram illustrating the water supply operation of the cleaning chamber of a base station according to one embodiment.

[0043] Figure 17 The wastewater collection operation of a base station according to one embodiment is shown.

[0044] Figure 18 The steam supply operation of a base station according to one embodiment is shown.

[0045] Figure 19 The water recycling operation of a base station according to one embodiment is shown.

[0046] Figure 20 The drying operation of a base station according to one embodiment is shown.

[0047] Figure 21 Show along Figure 3 The cross-section shown is taken by the line A-A'.

[0048] Figure 22 Show along Figure 3 The cross-section shown is taken by line B-B'.

[0049] Figure 23 A control block diagram of a cleaning robot according to one embodiment is shown.

[0050] Figure 24 A control block diagram of a base station according to one embodiment is shown.

[0051] Figure 25 This is a flowchart illustrating an example of a method for cleaning a wet cloth from a robotic vacuum cleaner according to an embodiment. Detailed Implementation

[0052] The various embodiments and terms used in this specification are not intended to limit the technical features described herein to specific embodiments, but should be understood to include various modifications, equivalents or alternatives to the corresponding embodiments.

[0053] Regarding the description of the accompanying drawings, similar reference numerals may be used to indicate similar or related constituent elements.

[0054] Unless the context clearly specifies otherwise, the singular form of the noun corresponding to an item may include one or more of the items mentioned.

[0055] In this specification, each of the statements such as “A or B”, “at least one of A and B”, “A, B or C”, “at least one of A, B and C” can include one of the items listed together in the corresponding statement or all possible combinations thereof.

[0056] The term "and / or" includes a combination of elements of a plurality of related records or one element of a plurality of related records.

[0057] The terms "part", "module", and "component" can be implemented using hardware or software. According to an embodiment, multiple "parts", "modules", and "components" can be implemented using a single constituent element, or a "part", "module", and "component" can also include multiple constituent elements.

[0058] Terms such as “first,” “second,” “first,” or “second” can be used simply to distinguish one constituent element from another, and do not limit the constituent element in other respects (e.g., importance or order).

[0059] When a component (e.g., the first) is referred to as “connected” or “linked” to another component (e.g., the second), whether or not the terms “functionally” or “communically” are used, it means that the first component can be connected to the second component directly (e.g., wired), wirelessly, or via a third component.

[0060] Terms such as “comprising” or “having” are used to specify the presence of features, figures, steps, operations, constituent elements, components or combinations thereof described in this specification, without precluding the presence or additional possibility of one or more other features or figures, steps, operations, constituent elements, components or combinations thereof.

[0061] When a constituent element is referred to as “connected,” “joined,” “supported,” or “in contact” with another constituent element, this includes not only cases where the constituent elements are directly connected, joined, supported, or in contact, but also cases where they are indirectly connected, joined, supported, or in contact through a third constituent element.

[0062] When a constituent element is "on" another constituent element, this includes not only the case where a constituent element is connected to another constituent element, but also the case where there is another constituent element between the two constituent elements.

[0063] Furthermore, the direction-related terms such as "front," "rear," "left," "right," "up," and "down" used in the following description are defined based on the accompanying drawings; the shape and position of each structural element are not limited by these terms. For example, as... Figure 1 As shown, the direction in which the robot vacuum cleaner 10 enters the base station 20 can be defined as the rear (-X direction), and the opposite direction can be defined as the front (+X direction).

[0064] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0065] Figure 1 This is a diagram showing a robotic vacuum cleaner in a cleaning apparatus according to an embodiment in a state where it is detached from a base station. Figure 2 This is a diagram showing the state of a robotic vacuum cleaner in a cleaning apparatus according to an embodiment, positioned at a base station. Figure 3 It is shown Figure 2 The diagram shows the rear of the cleaning device.

[0066] Reference Figures 1 to 3 The cleaning device 1 may include a robotic vacuum cleaner 10 and a base station 20. The cleaning device 1 may be referred to as a cleaning system 1.

[0067] The robotic vacuum cleaner 10 can clean the floor while moving along the ground. The floor cleaned by the robotic vacuum cleaner 10 can be referred to as the cleaned surface. The robotic vacuum cleaner 10 can perform dry cleaning and / or wet cleaning. The robotic vacuum cleaner 10 can suck up or wipe away dirt from the cleaned surface. Here, dirt can be collectively referred to as foreign objects such as dust, hair, food residue, etc.

[0068] The robotic vacuum cleaner 10 can be installed at the base station 20. The robotic vacuum cleaner 10 can be placed at the base station 20. The robotic vacuum cleaner 10 can dock with the base station 20. At least a portion of the robotic vacuum cleaner 10 can be arranged in the receiving space 210a of the base station 20.

[0069] The robot vacuum cleaner 10 can move to the base station 20 during and / or after cleaning.

[0070] For example, the robotic vacuum cleaner 10 can move to the base station 20 under the following circumstances: when it needs to be charged, when the dustbin 141 (see reference) Figure 21 and Figure 22 The waste in bucket 114 needs to be emptied (see reference). Figure 21 The following situations may occur: insufficient water, low moisture content of the wet cloth 160, need to be washed, need to be sterilized, and / or need to be dried.

[0071] Base station 20 can be configured to house the sweeping robot 10. Base station 20 can be configured to house the sweeping robot 10. Base station 20 can be configured to store the sweeping robot 10.

[0072] For example, while the robotic vacuum cleaner 10 is positioned at the base station 20, the base station 20 can monitor the battery 150 of the robotic vacuum cleaner 10 (see reference). Figure 23 The robot vacuum cleaner 10 can be charged using various methods. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can collect the dirt collected in the dustbin 141 of the robot vacuum cleaner 10. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can supply water to the water tank 114 of the robot vacuum cleaner 10. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can wet the damp mop 160 using water and / or steam. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can wash the damp mop 160. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can sterilize the damp mop 160. For example, while the robot vacuum cleaner 10 is positioned at the base station 20, the base station 20 can dry the damp mop 160.

[0073] Figure 4 This is a diagram illustrating a robotic vacuum cleaner according to one embodiment. Figure 5 It is shown Figure 4 The image shown shows the back of the robotic vacuum cleaner. Figure 6 It is shown Figure 4 The image shows the lower part of the robotic vacuum cleaner.

[0074] The robotic vacuum cleaner 10 may include a main body 110. The main body 110 forms the overall appearance of the robotic vacuum cleaner 10. The main body 110 may house the components of the robotic vacuum cleaner 10. Electronic components may be arranged inside the main body 110. The main body 110 may be referred to as the cleaner body 110.

[0075] The robotic vacuum cleaner 10 may include a suction port 111. The suction port 111 may be oriented towards the surface being cleaned. The suction port 111 may be open towards the surface being cleaned. The suction port 111 may be formed in the main body 110. The suction port 111 may be formed in the lower part of the main body 110. The suction port 111 may be formed through the lower surface 110b of the main body 110. Dirt on the surface being cleaned can be sucked into the interior of the main body 110 along with air through the suction port 111. The suction port 111 may be referred to as a cleaner suction port 111.

[0076] The robotic vacuum cleaner 10 may include a brush 130. The brush 130 can strike the surface being cleaned to disperse dirt. The dirt dispersed by the brush 130 can flow into the suction port 111 along with the air.

[0077] For example, the robotic vacuum cleaner 10 may include a first brush 131 disposed at the suction inlet 111. The first brush 131 may be rotatably mounted relative to the body 110. The axis of rotation of the first brush 131 may be an axis extending in a generally horizontal direction (Y direction). The first brush 131 may be referred to as the main brush 131.

[0078] For example, the robotic vacuum cleaner 10 may include a second brush 132 arranged adjacent to the lower edge of the main body 110. The second brush 132 may guide dirt around the main body 110 that the first brush 131 cannot reach to the suction port 111. The second brush 132 may be rotatably mounted relative to the main body 110. The axis of rotation of the second brush 132 may be an axis extending in a generally vertical direction (Z direction). The second brush 132 may be referred to as a side brush 132.

[0079] The robotic vacuum cleaner 10 may include a dust collection bin 141 (see reference). Figure 21 and Figure 22 The dirt and / or air drawn in through the suction port 111 can move to the dust collection bin 141. The dirt drawn in through the suction port 111 can be collected in the dust collection bin 141. The air drawn in through the suction port 111 can be filtered as it passes through the dust collection bin 141. The dirt and air drawn in through the suction port 111 can be separated in the dust collection bin 141.

[0080] The robotic vacuum cleaner 10 may include an exhaust port 112. The exhaust port 112 may be formed on the main body 110. The exhaust port 112 may be formed on the rear side of the main body 110. Air drawn in through the suction port 111 can be filtered and discharged to the outside of the robotic vacuum cleaner 10 through the exhaust port 112. For example, multiple exhaust ports 112 may be provided, and multiple exhaust ports may be formed using multiple holes. The exhaust port 112 may be referred to as a cleaner exhaust port 112.

[0081] The robotic vacuum cleaner 10 may include a suction motor 142 (see reference). Figure 23 The suction motor 142 generates suction force. Using the suction force generated in the suction motor 142, the suction port 111 can draw in dirt and / or air. Using the suction force generated in the suction motor 142, the exhaust port 112 can exhaust the filtered air drawn into the robot vacuum 10 to the outside. The suction motor 142 can be arranged in the airflow path formed between the suction port 111 and the exhaust port 112. The suction motor 142 can be referred to as the cleaner suction motor 142.

[0082] The robotic vacuum cleaner 10 may include a traveling unit 120 for moving the robotic vacuum cleaner 10. The traveling unit 120 may be mounted on the main body 110 and move the main body 110. For example, the traveling unit 120 may include a pair of main wheels 121. For example, for stable movement of the robotic vacuum cleaner 10, the traveling unit 120 may also include at least one auxiliary wheel 122.

[0083] The robotic vacuum cleaner 10 may include a battery 150 (see reference). Figure 23 Battery 150 can be equipped as rechargeable. Battery 150 provides the power required to drive the robotic vacuum cleaner 10.

[0084] The robotic vacuum cleaner 10 may include a charging terminal 151. The charging terminal 151 can be electrically connected to a battery 150. While the robotic vacuum cleaner 10 is positioned at the base station 20, the charging terminal 151 of the robotic vacuum cleaner 10 can be electrically connected to a charging terminal 218 of the base station 20. With the charging terminal 151 of the robotic vacuum cleaner 10 electrically connected to the charging terminal 218 of the base station 20, the battery 150 of the robotic vacuum cleaner 10 can be charged. That is, the battery 150 can be charged while the robotic vacuum cleaner 10 is docked with the base station 20. The charging terminal 151 may be referred to as the cleaner charging terminal 151.

[0085] The robotic vacuum cleaner 10 may include a wet mop 160. The wet mop 160 is detachably mountable to the lower part of the main body 110. The wet mop 160 can be rotatably mounted relative to the main body 110. The wet mop 160 can be configured to contact and clean the surface being cleaned. The wet mop 160 can wipe away dirt from the surface being cleaned while still damp. Although two wet mops 160 are shown in the accompanying drawings, the number of wet mops 160 is not limited. The wet mop 160 may be referred to as a cleaning pad 160. The wet mop 160 may be referred to as a wet pad 160.

[0086] The wet mop 160 can receive water from the water tank 114 of the robotic vacuum cleaner 10. The wet mop 160 can also receive water from the base station 20. For example, if the moisture content of the wet mop 160 decreases during cleaning by the robotic vacuum cleaner 10, water stored in the water tank 114 can be supplied to the wet mop 160. If the moisture content of the wet mop 160 decreases during cleaning by the robotic vacuum cleaner 10, the robotic vacuum cleaner 10 can return to the base station 20 and be positioned there. At this time, the base station 20 can supply water to the water tank 114 or spray water and / or steam towards the wet mop 160. The robotic vacuum cleaner 10 being positioned at the base station 20 can include a docking arrangement between the robotic vacuum cleaner 10 and the base station 20.

[0087] The robotic vacuum cleaner 10 may include a water filling section 113. The water filling section 113 may be formed on the main body 110. The water filling section 113 may be formed on the rear side of the main body 110. While the robotic vacuum cleaner 10 is positioned at the base station 20, the water filling section 113 may contain water supplied from the base station 20. The water supplied to the robotic vacuum cleaner 10 through the water filling section 113 may be stored in a water tank 114. While the robotic vacuum cleaner 10 is positioned at the base station 20, the water filling section 113 of the robotic vacuum cleaner 10 may connect with the first water supply section 217 of the base station 20 (see below). Figure 12 ) docking.

[0088] The robotic vacuum cleaner 10 may include a rotary drive unit 161 that rotates a wet mop 160 (see reference). Figure 23 The rotary drive unit 161 may include a motor. The rotary drive unit 161 may be referred to as motor 161. For example, during the period when the robotic vacuum cleaner 10 is mounted on the base station 20 and the wet mop 160 is being cleaned and / or sterilized, the motor 161 can rotate the wet mop 160. As described later, the control unit 190 of the robotic vacuum cleaner 10 (see reference...) Figure 23 The motor 161 can be controlled to rotate the wet cloth 160.

[0089] The robotic vacuum cleaner 10 may include a lifting drive unit 162 that moves a wet mop 160 up and down. Figure 23 During the cleaning process of the robotic vacuum cleaner 10, the lifting drive unit 162 can move the wet mop 160 downwards. This allows the wet mop 160 to contact the surface being cleaned. During the cleaning process of the robotic vacuum cleaner 10 and its return to the base station 20, the lifting drive unit 162 can move the wet mop 160 upwards. This allows the wet mop 160 to be separated from the surface being cleaned. This prevents the wet mop 160 from colliding with obstacles above the surface being cleaned or leaving unnecessary moisture on the surface during the movement of the robotic vacuum cleaner 10 towards the base station 20. As described later, the control unit 190 of the robotic vacuum cleaner 10 (see...) Figure 23 The lifting drive unit 162 can be controlled to move the wet cloth 160 up and down.

[0090] The robotic vacuum cleaner 10 may include an obstacle sensing sensor 170. The obstacle sensing sensor 170 may be configured to sense the position of an obstacle or the distance to an obstacle. The obstacle sensing sensor 170 may be mounted on the body 110. For example, the obstacle sensing sensor 170 may protrude from the upper surface 110a of the body 110.

[0091] Figure 7 This is a diagram illustrating a base station according to one embodiment. Figure 8 It is shown Figure 7 The diagram shows the back of the base station. Figure 9 It is shown Figure 7 A diagram of the rear surface of the base station.

[0092] The base station 20 may include a main body 210. The main body 210 may form the overall appearance of the base station 20. The main body 210 may form a receiving space 210a for accommodating at least a portion of the robotic vacuum cleaner 10. The main body 210 may be referred to as the base station main body 210.

[0093] The main body 210 may include a base 211 and a housing 212 that can be detachably attached to the base 211.

[0094] The base 211 may include a cleaner placement section 211a for placing the robotic vacuum cleaner 10. The cleaner placement section 211a may have a shape that slopes upwards from the surface being cleaned, allowing the robotic vacuum cleaner 10 to enter. For example, the cleaner placement section 211a may have a shape that slopes upwards along the direction in which the robotic vacuum cleaner 10 enters the base station 20. For example, an anti-slip section 216 may be formed in the cleaner placement section 211a to allow the robotic vacuum cleaner 10 to easily climb onto the sloped surface of the cleaner placement section 211a. For example, an anti-slip step 215 may be formed in the cleaner placement section 211a to prevent the robotic vacuum cleaner 10 placed on the base station 20 from sliding along the sloped surface of the cleaner placement section 211a. The robotic vacuum cleaner 10 placed on the base station 20 can avoid detaching from the base station 20 by means of the anti-slip step 215.

[0095] The base 211 may include a sidewall 211b extending upward from the cleaner mounting portion 211a. The sidewall 211b may be configured to surround at least a portion of the cleaner mounting portion 211a.

[0096] The outer casing 212 may be equipped with a side wall portion 211b covering the base 211. The outer casing 212 may house the components of the base station 20. Electronic components may be arranged inside the outer casing 212. The outer casing 212 may form an opening portion 212a, through which the robotic vacuum cleaner 10 may enter the housing space 210a of the base station 20.

[0097] Base station 20 may include a water tank 221. The water tank 221 may be configured to store water. The water tank 221 may contain relatively clean water. The water stored in the water tank 221 may be supplied to the water tank 114 of the robotic vacuum cleaner 10, or may be supplied to the cleaning chamber 230 of the base station 20 (described later). That is, the water stored in the water tank 221 may be used to provide moisture to the wet mop 160 or to clean the wet mop 160. The water tank 221 can be detachably mounted to the main body 210. For example, a user can grasp the handle 221a of the water tank 221 to detach the water tank 221 from the main body 210 or to attach the water tank 221 to the main body 210.

[0098] Base station 20 may include a wastewater tank 222. The wastewater tank 222 may be configured to store water. The wastewater tank 222 can contain relatively dirty water. Water (wastewater) that becomes dirty while washing a wet cloth 160 can be stored in the wastewater tank 222. The wastewater tank 222 can be detachably mounted to the main body 210. For example, a user can grasp the handle 222a of the wastewater tank 222 to detach the wastewater tank 222 from the main body 210 or to attach the wastewater tank 222 to the main body 210.

[0099] Base station 20 may include a waste collection bin 223. Waste collection bin 223 may be configured to store waste collected from the dustbin 141 of the robotic vacuum cleaner 10. Waste collection bin 223 can be detachably mounted to body 210. For example, a user can grasp the handle 223a of waste collection bin 223 to detach waste collection bin 223 from body 210 or to attach waste collection bin 223 to body 210.

[0100] Although the accompanying drawings show the sewage tank 222, water supply tank 221 and waste collection tank 223 arranged side by side in a generally horizontal direction (Y direction), the positions of the sewage tank 222, water supply tank 221 and waste collection tank 223 are not restricted.

[0101] The base station 20 may include a suction port 213. The suction port 213 may be formed in the cleaner mounting section 211a. While the robot vacuum cleaner 10 is mounted on the base station 20, the suction port 213 may communicate with the dust collection bin 141 of the robot vacuum cleaner 10. The suction port 213 may be configured to suck up dirt collected in the dust collection bin 141. The suction port 213 may be referred to as the cleaner suction port 213.

[0102] Base station 20 may include a waste collection conduit 225. The waste collection conduit 225 may be configured to guide waste sucked in through suction port 213 to waste collection bin 223. The waste collection conduit 225 may be arranged between suction port 213 and waste collection bin 223. One end of the waste collection conduit 225 may communicate with suction port 213. The other end of the waste collection conduit 225 may communicate with waste collection bin 223.

[0103] Base station 20 may include outlet 214 (refer to...) Figure 3 The exhaust port 214 may be formed on the rear side of the main body 210. The exhaust port 214 may be formed on the rear surface of the housing 212. The exhaust port 214 can exhaust the air drawn into the base station 20 and filtered to the outside. For example, multiple exhaust ports 214 may be provided, and multiple exhaust ports 214 may be constituted using multiple holes. The exhaust port 214 may be referred to as the base station exhaust port 214.

[0104] Base station 20 may include a suction motor 224. When the robotic vacuum cleaner 10 is placed on base station 20, suction motor 224 can generate suction force to draw in dirt from dust collection bin 141. By means of the suction force of suction motor 224, dirt in dust collection bin 141 can flow along suction port 113 and dirt collection pipe 225 to be collected in dirt collection bin 223. By means of the suction force generated in suction motor 224, exhaust port 214 can exhaust air drawn into base station 20 and passing through exhaust filter 226 to the outside. Suction motor 224 may be referred to as base station suction motor 224.

[0105] Base station 20 may include a steam generating device 250. The steam generating device 250 can generate steam. The steam generating device 250 can utilize water stored in water supply tank 221 to generate steam. The steam generating device 250 can receive water stored in water supply tank 221 to generate steam.

[0106] The steam generating device 250 can be arranged below the water supply tank 221. When water from the water supply tank 221 is supplied to the steam generating device 250, the first pump 21 (see reference) Figure 13 Water in the water supply tank 221 can also be pumped with relatively low power with the help of gravity.

[0107] The steam generating device 250 may include a steam tank 251 that can contain water received from the water supply tank 221.

[0108] The steam generating device 250 may include a heater 252 for heating water contained in a steam tank 251. Steam is generated as the water in the steam tank 251 is heated by the heater 252. As described later, the control unit 290 of the base station 20 (see...) Figure 24 (This can control heater 252.)

[0109] For example, heater 252 can heat water using vibration and / or resistance. However, this disclosure is not limited to the above examples, and the type of heater 252 is not limited as long as it is capable of heating water and generating steam.

[0110] Steam generating device 250 may include a water level sensor 253 equipped to sense the water level in steam tank 251 (see reference). Figure 24 As described below, the control unit 290 of base station 20 (see reference) Figure 24 The heater 252 can be operated based on a preset water level sensed by the water level sensor 253. The preset water level sensed by the water level sensor 253 may include the water level in the steam tank 251 being sensed by the water level sensor 253 as reaching the preset water level.

[0111] Therefore, the heater 252 can operate only when the steam tank 251 is filled with a predetermined amount of water, thereby preventing accidents such as fires from occurring in advance.

[0112] Steam generating device 250 may include a temperature sensor 254 equipped for sensing the temperature inside steam tank 251. Figure 24 As described below, the control unit 290 of base station 20 (see reference) Figure 24 The operation of heater 252 can be interrupted if the temperature sensed by temperature sensor 254 is higher than a preset temperature. Thus, if the steam temperature is too high, the operation of heater 242 can be interrupted, thereby preventing accidents such as fires and protecting cleaning devices (e.g., wet wipes) from damage.

[0113] Base station 20 may include a drying device 260. The drying device 260 may be configured to generate air (hereinafter referred to as drying air) for drying the wet mop 160. The drying device 260 may be configured to supply the drying air to the cleaning chamber 230, described later. While the robotic vacuum cleaner 10 is positioned at base station 20, the drying air discharged from the drying device 260 may be directed towards the wet mop 160. The air generated and supplied in the drying device 260 (drying air) may have a relatively low humidity or a high temperature. The drying air may also be referred to as hot air or drying wind.

[0114] For example, after cleaning and / or sterilizing with the wet cloth 160, the base station 20 can provide drying air to the wet cloth 160. For example, if the wet cloth 160 increases in moisture content while wiping the surface being cleaned during the cleaning process of the robot vacuum 10, the robot vacuum 10 can return to the base station 20, and the base station 20 can discharge drying air toward the wet cloth 160.

[0115] The drying apparatus 260 may include a fan 262 that generates airflow. The drying apparatus 260 may include a drying duct 261 configured to guide the air blown by the fan 262. The drying duct 261 may be configured to connect the fan 262 to the cleaning chamber 230 described later. The drying apparatus 260 may include a heater 263 configured to heat the air blown by the fan 262. The heater 263 may be configured to heat the air guided by the drying duct 261. At least a portion of the heater 263 may be disposed inside the drying duct 261.

[0116] Figure 10 This is a diagram showing a portion of a base station according to one embodiment. Figure 11 This is a diagram showing the state in which the cleaning frame in a base station according to an embodiment is separated from the cleaning chamber. Figure 12 This is a view showing a side cross-section of a base station according to one embodiment.

[0117] Base station 20 may include a cleaning chamber 230. While the robotic vacuum cleaner 10 is placed on base station 20, the cleaning chamber 230 may be configured to correspond to a wet mop 160. The cleaning chamber 230 may be defined as a space for cleaning the wet mop 160. The cleaning chamber 230 may be configured to contain water received from water tank 221. The cleaning chamber 230 may have a shape for containing water. While the robotic vacuum cleaner 10 is placed on base station 20, the wet mop 160 can be cleaned by the water contained in the cleaning chamber 230.

[0118] A cleaning chamber 230 may be formed in the base 211 of the main body 210. The cleaning chamber 230 may be configured to be recessed from the cleaner mounting portion 211a. The cleaning chamber 230 may be defined by a chamber bottom 230a and a chamber sidewall 230b extending upward from the chamber bottom 230a. The chamber sidewall 230b may be configured to have a predetermined height.

[0119] The bottom 230a of the cleaning chamber can be configured to slope downwards along the direction in which the robot vacuum cleaner 10 enters the base station 20. For example, the bottom 230a of the cleaning chamber can be configured to slope downwards in a rearward direction. Thus, after the wet cloth 160 has finished cleaning, the water (sewage) in the cleaning chamber 230 can easily flow along the inclined surface of the bottom 230a towards the sewage collection section 234 located at the rear of the cleaning chamber 230. However, this disclosure is not limited to this, and the inclination direction of the bottom 230a of the cleaning chamber can of course vary depending on the position of the sewage collection section 234.

[0120] For example, base station 20 may include a tray 2301. The tray 2301 may be configured as a base 211 detachably mounted to the body 210 to form at least a portion of the cleaning chamber 230. For example, the tray 2301 may be configured to form at least a portion of the chamber bottom 230a and the chamber sidewall 230b. The tray 2301 may include at least one tray hole 2302. Wastewater within the cleaning chamber 230 can flow through the tray hole 2302 to the wastewater collection section 234. Because the tray 2301 includes the tray hole 2302, foreign objects larger than the tray hole 2302 can be filtered out by the tray 2301. That is, the tray 2301 can initially filter wastewater after washing the wet cloth 160.

[0121] The base station 20 may include a cleaning frame 240. The cleaning frame 240 may be configured to correspond to a cleaning chamber 230. The cleaning frame 240 can be detachably mounted to the cleaning chamber 230. While the robotic vacuum cleaner 10 is placed on the base station 20, the cleaning frame 240 may be configured to contact a wet cloth 160. While the robotic vacuum cleaner 10 is placed on the base station 20, the cleaning frame 240 may be configured to rub against the wet cloth 160. The wet cloth 160 can be cleaned while rubbing against the cleaning frame 240. At this time, the wet cloth 160 may be configured to be rotatable.

[0122] For example, the cleaning frame 240 may include a frame body 240a, a frame protrusion 240b, and a frame opening 240c. The frame body 240a may be separably coupled to the chamber sidewall 230b. The frame opening 240c may be formed through the frame body 240a. The frame protrusion 240b may be formed in the frame body 240a to interfere with the wet cloth 160.

[0123] Base station 20 may include a charging terminal 218. While the robotic vacuum cleaner 10 is positioned on base station 20, the charging terminal 218 of base station 20 can be electrically connected to the charging terminal 151 of robotic vacuum cleaner 10. With the charging terminal 218 of base station 20 electrically connected to the charging terminal 151 of robotic vacuum cleaner 10, the battery 150 of robotic vacuum cleaner 10 can be charged. That is, robotic vacuum cleaner 10 can be charged while docked with base station 20. The charging terminal 218 may be referred to as base station charging terminal 218.

[0124] The base station 20 may include a first water supply unit 217. The first water supply unit 217 can receive water stored in a water tank 221 and supply it to the robotic vacuum cleaner 10. While the robotic vacuum cleaner 10 is placed on the base station 20, the first water supply unit 217 of the base station 20 can be connected to the water filling unit 113 of the robotic vacuum cleaner 10. Water flowing from the first water supply unit 217 can flow into the water filling unit 113. Water flowing into the water filling unit 113 can be stored in a water tank 114. If the moisture content of the wet mop 160 decreases during the cleaning process of the robotic vacuum cleaner 1, the water stored in the water tank 114 can be supplied to the wet mop 160. For example, the first water supply unit 217 may be formed on the side wall 211b of the base 211 of the main body 210.

[0125] Base station 20 may include a second water supply unit 231. The second water supply unit 231 may communicate with the cleaning chamber 230. The second water supply unit 231 may receive water stored in the water supply tank 221 and supply it to the cleaning chamber 230. Water flowing out of the second water supply unit 231 may be contained in the cleaning chamber 230. The water flowing out of the second water supply unit 231 may be used to clean the wet cloths 160. Although two second water supply units 231 are shown in the figures, the number of second water supply units 231 is not limited. For example, the number of second water supply units 231 may correspond to the number of wet cloths 160.

[0126] The base station 20 may include a water jet nozzle 241. The water jet nozzle 241 may be formed on the cleaning frame 240. While the cleaning frame 240 is installed in the cleaning chamber 230, the water jet nozzle 241 may correspond to the second water supply unit 231. The water jet nozzle 241 may communicate with the second water supply unit 231. The water jet nozzle 241 may communicate with the cleaning chamber 230. The water jet nozzle 241 can receive water from the second water supply unit 231 and spray water toward the cleaning chamber 230. While the sweeping robot 10 is placed on the base station 20, the water jet nozzle 241 may spray water toward the wet mop 160. Although two water jet nozzles 241 are shown in the figures, the number of water jet nozzles 241 is not limited. For example, the number of water jet nozzles 241 may correspond to the number of wet mops 160.

[0127] Base station 20 may include a drying air supply unit 232. The drying air supply unit 232 may communicate with the cleaning chamber 230. The drying air supply unit 232 may receive drying air from the drying device 260 and supply it to the cleaning chamber 230. Drying air flowing out of the drying device 260 may be supplied to the cleaning chamber 230 via the drying air supply unit 232. Although two drying air supply units 232 are shown in the figures, the number of drying air supply units 232 is not limited. For example, the number of drying air supply units 232 may correspond to the number of wet cloths 160.

[0128] The base station 20 may include a drying air jet 242. The drying air jet 242 may be formed on the cleaning frame 240. While the cleaning frame 240 is installed in the cleaning chamber 230, the drying air jet 242 may correspond to the drying air supply unit 232. The drying air jet 242 may communicate with the drying air supply unit 232. The drying air jet 242 may communicate with the cleaning chamber 230. The drying air jet 242 may receive drying air from the drying air supply unit 232 and jet drying air toward the cleaning chamber 230. While the robot vacuum cleaner 10 is placed on the base station 20, the drying air jet 242 may jet drying air toward the wet mop 160. Although the accompanying drawings show two vertically arranged drying air jets 242 corresponding to one drying air supply unit 232, this disclosure is not limited thereto. The shape and / or position of the drying air jet 242 are not limited.

[0129] Base station 20 may include a steam supply unit 233. The steam supply unit 233 may be in communication with the cleaning chamber 230. The steam supply unit 233 may receive steam from the steam generating device 250 and supply it to the cleaning chamber 230. The steam generated in the steam generating device 250 may flow out towards the cleaning chamber 230 through the steam supply unit 233. Although only one steam supply unit 233 is shown in the figures, the number of steam supply units 233 is not limited. For example, multiple steam supply units 233 may be provided.

[0130] The base station 20 may include a steam jet port 243. The steam jet port 243 may be formed on the cleaning frame 240. While the cleaning frame 240 is installed in the cleaning chamber 230, the steam jet port 243 may correspond to the steam supply unit 233. The steam jet port 243 may communicate with the steam supply unit 233. The steam jet port 243 may communicate with the cleaning chamber 230. The steam jet port 243 can receive steam from the steam supply unit 233 and jet it towards the cleaning chamber 230. While the robot vacuum cleaner 10 is placed on the base station 20, the steam jet port 243 may jet steam towards the wet mop 160. Although two steam jet ports 243 are shown in the figures, the number of steam jet ports 243 is not limited. For example, the number of steam jet ports 243 may correspond to the number of wet mop 160.

[0131] Base station 20 may include sewage collection unit 234 (see reference) Figure 21 The wastewater collection unit 234 can communicate with the cleaning chamber 230. The wastewater collection unit 234 can be configured to collect wastewater within the cleaning chamber 230. The wastewater collection unit 234 can be configured to guide the wastewater within the cleaning chamber 230.

[0132] Figure 13 This is a schematic diagram illustrating a portion of a base station configuration according to one embodiment.

[0133] Reference Figure 13 Base station 20 may include at least one piping 201, 202, 2023, 204, 205, 206, 207, 208, 209 and / or 2010. Base station 20 may include at least one pump (first pump 21 and / or second pump 22). Base station 20 may include at least one valve (first valve 23 and / or second valve 24).

[0134] Base station 20 may include a first conduit 201. The first conduit 201 may be configured to connect a water tank 221 to a first pump 21. One end of the first conduit 201 may be in communication with the water tank 221. The other end of the first conduit 201 may be in communication with the first pump 21. The first conduit 201 may be configured to guide water flowing from the water tank 221 or from the first pump 21. Water may flow along a first flow path formed within the first conduit 201.

[0135] Base station 20 may include a second conduit 202. The second conduit 202 may be configured to connect the first pump 21 and the first valve 23. One end of the second conduit 202 may be in communication with the first pump 21. The other end of the second conduit 202 may be in communication with the first valve 23. The second conduit 202 may be configured to allow water pumped by the first pump 21 to flow. The second conduit 202 may be configured to guide water flowing from the first pump 21 or from the first valve 23. Water may flow along a second flow path formed within the second conduit 202.

[0136] Base station 20 may include a third conduit 203. The third conduit 203 may be configured to connect a first valve 23 and a second valve 24. The third conduit 203 may be arranged between the first pump 21 and the second valve 24. One end of the third conduit 203 may be connected to the first valve 23. The other end of the third conduit 203 may be connected to the second valve 24. The third conduit 203 may be configured to allow water pumped by the first pump 21 to flow. The third conduit 203 may be configured to guide water flowing from the first valve 23 or from the second valve 24. Water may flow along a third flow path formed within the third conduit 203.

[0137] Base station 20 may include a fourth conduit 204. The fourth conduit 204 may be configured to connect the second valve 24 to the base 211. The fourth conduit 204 may be configured to connect the second valve 24 to the second water supply unit 231. One end of the fourth conduit 204 may be in communication with the second valve 24. The other end of the fourth conduit 204 may be in communication with the second water supply unit 231. The other end of the fourth conduit 204 may be in communication with the cleaning chamber 230. The fourth conduit 204 may be configured to guide water flowing from the second valve 24. The fourth conduit 204 may be configured to guide water pumped by the first pump 21 to the cleaning chamber 230. The water may flow along a fourth flow path formed inside the fourth conduit 204.

[0138] Base station 20 may include a fifth conduit 205. The fifth conduit 205 may be configured to connect the second valve 24 and the steam generating device 250. One end of the fifth conduit 205 may be in communication with the second valve 24. The other end of the fifth conduit 205 may be in communication with the steam generating device 250. The fifth conduit 205 may be configured to guide water flowing from the second valve 24 or from the steam generating device 250. The fifth conduit 205 may be configured to guide water pumped by the first pump 21 to the steam generating device 250. Thus, water stored in the water supply tank 221 is guided by the fifth conduit 205 to flow to the steam generating device 250. Alternatively, the fifth conduit 205 may be configured to guide water pumped by the first pump 21 to the second valve 24. Thus, water stored in the steam generating device 250 can be guided by the fifth conduit 205 to flow to the second valve 24. Water may flow along a fifth flow path formed inside the fifth conduit 205.

[0139] For example, the fifth pipe 205 can be connected to the lower part of the steam generating device 250. Water can be filled from below the steam tank 251 of the steam generating device 250.

[0140] Base station 20 may include a sixth conduit 206. The sixth conduit 206 may be configured to connect steam generating device 250 and base 211. The sixth conduit 206 may be configured to connect steam generating device 250 and steam supply unit 233. One end 206a of the sixth conduit 206 (see reference) Figure 9 It can be connected to the steam generating device 250. The other end 206b of the sixth pipe 206 (refer to...) Figure 9 The sixth pipe 206 can be connected to the steam supply unit 233. The other end 206b of the sixth pipe 206 can be connected to the cleaning chamber 230. The sixth pipe 206 can be configured to guide steam generated in the steam generating device 250. The sixth pipe 206 can be configured to guide the steam generated in the steam generating device 250 to the cleaning chamber 230. The steam can flow along a sixth flow path formed inside the sixth pipe 206.

[0141] For example, the sixth pipe 206 can be connected to the upper part of the steam generating device 250. Generally, considering that steam is less dense than air and therefore rises, the sixth pipe 206 can be connected to the upper part of the steam generating device 250.

[0142] For example, the sixth piping 206 may include a bend 2061 that is bent at a height between the steam generating device 250 and the water supply tank 221 (see reference). Figure 9 This prevents water and / or contaminants in the cleaning chamber 230 from flowing back into the steam generating device 250.

[0143] Base station 20 may include a seventh conduit 207. The seventh conduit 207 may be configured to connect the first valve 23 and the base 211. The seventh conduit 207 may be configured to connect the first valve 23 and the first water supply unit 217. One end of the seventh conduit 207 may be in communication with the first valve 23. The other end of the seventh conduit 207 may be in communication with the first water supply unit 217. The seventh conduit 207 may be configured to guide water flowing from the first valve 23. The seventh conduit 207 may be configured to guide water flowing in the second conduit 202 to a robotic vacuum cleaner 10 placed in base station 20. Water may flow along a seventh flow path formed inside the seventh conduit 207.

[0144] Base station 20 may include an eighth conduit 208. The eighth conduit 208 may be configured to connect the wastewater tank 222 and the second pump 22. One end of the eighth conduit 208 may be in communication with the wastewater tank 222. The other end of the eighth conduit 208 may be in communication with the second pump 22. The eighth conduit 208 may be configured to guide air flowing from the wastewater tank 222. The air may flow along an eighth flow path formed inside the eighth conduit 208.

[0145] Base station 20 may include a ninth conduit 209. The ninth conduit 209 may be configured to connect the second pump 22 to the base 211. The ninth conduit 209 may also be configured to connect the second pump 22 to an air vent 219 (see reference). Figures 10 to 12 One end of the ninth piping 209 may be connected to the second pump 22. The other end of the ninth piping 209 may be connected to the outside through an air vent 219. The ninth piping 209 may be configured to guide air pumped by the second pump 22. The air may flow along a ninth flow path formed inside the ninth piping 209.

[0146] Base station 20 may include a tenth conduit 2010. The tenth conduit 2010 may be configured to connect a wastewater tank 222 to a base 211. The tenth conduit 2010 may also be configured to connect the wastewater tank 222 to a wastewater collection unit 234. One end of the tenth conduit 2010 may communicate with the wastewater tank 222. The other end of the tenth conduit 2010 may communicate with the wastewater collection unit 234. The remaining end of the tenth conduit 2010 may communicate with a cleaning chamber 230. The tenth conduit 2010 may be configured to guide wastewater within the cleaning chamber 230. The wastewater may flow along a tenth flow path formed within the tenth conduit 2010.

[0147] Base station 20 may include a waste collection conduit 225. The waste collection conduit 225 may be configured to connect a waste collection container 223 to a base 211. The waste collection conduit 225 may also be configured to connect the waste collection container 223 to a suction inlet 213. One end of the waste collection conduit 225 may communicate with the waste collection container 223. The other end of the waste collection conduit 225 may communicate with the suction inlet 213. The waste collection conduit 225 may be configured to guide waste and / or air. The waste collection conduit 225 may be referred to as an eleventh conduit 225. Waste and / or air may flow along an eleventh flow path formed within the eleventh conduit 225.

[0148] Base station 20 may include a drying duct 261. The drying duct 261 may be configured to guide drying air. The drying duct 261 may be configured to guide air, circulated by fan 262 and heated by heater 263, to base 211. The drying duct 261 may communicate with base 211. The drying duct 261 may communicate with drying air supply unit 232. The drying duct 261 may communicate with cleaning chamber 230 via drying air supply unit 232. The drying duct 261 may be referred to as twelfth piping 261. Drying air may flow along a twelfth flow path formed within twelfth piping 261.

[0149] Furthermore, in the first conduit 201, second conduit 202, third conduit 203, fourth conduit 204, fifth conduit 205, sixth conduit 206, seventh conduit 207, eighth conduit 208, ninth conduit 209, tenth conduit 2010, eleventh conduit 2011, and twelfth conduit 2012, the ordinal numbers "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth," "ninth," "tenth," "eleventh," and "twelfth" do not restrict their composition. For example, the fourth conduit 204 can be referred to as the first conduit 204, and the fifth conduit 205 can be referred to as the second conduit 205.

[0150] Base station 20 may include a first pump 21. The first pump 21 may be connected to a water tank 221. The first pump 21 may be connected to the water tank 221 via a first conduit 201. The first pump 21 may be connected to a first valve 23. The first pump 21 may be connected to the first valve 23 via a second conduit 202. The first pump 21 may be positioned between the water tank 221 and the first valve 23.

[0151] The first pump 21 may be configured to pump water stored in the water supply tank 221. The first pump 21 may also be configured to pump water contained in the steam generating device 250. For example, the rotation of the internal components of the first pump 21 (e.g., piston, rotor, or impeller) can generate power to flow water. For example, when the internal components of the first pump 21 rotate in a first direction, water stored in the water supply tank 221 is pumped (see reference). Figure 18 When the internal structure of the first pump 21 rotates in a second direction opposite to the first direction, the first pump 21 can pump water contained in the steam generating device 250 (see reference). Figure 19 ).

[0152] Base station 20 may include a second pump 22. The second pump 22 may be connected to a wastewater tank 222. The second pump 22 may be connected to the wastewater tank 222 via an eighth conduit 208. The second pump 22 may be connected to an air vent 219. The second pump 22 may be connected to the air vent 219 via a ninth conduit 209. The second pump 22 may be positioned between the wastewater tank 222 and the base 211.

[0153] The second pump 22 can be equipped with air for pumping the sewage tank 222. The air inside the sewage tank 222 can be discharged from the sewage tank 222 by the second pump 22.

[0154] Furthermore, the ordinal numbers "first" and "second" in the first pump 21 and the second pump 22 do not restrict their configuration. For example, the first pump 21 can be referred to as the second pump 21, and the second pump 22 can be referred to as the first pump 22.

[0155] Base station 20 may include a first valve 23. The first valve 23 may be connected to a second conduit 202. The first valve 23 may be connected to a seventh conduit 207. The first valve 23 may be connected to a third conduit 203.

[0156] The first valve 23 may be configured to connect the second pipe 202 to the seventh pipe 207, or to connect the second pipe 202 to the third pipe 203. The first valve 23 may be configured to regulate the flow of water pumped by the first pump 21. The first valve 23 may allow water pumped by the first pump 21 to flow to the first water supply unit 217 or the second valve 24. For example, the first valve 23 may selectively open the seventh pipe 207 and the third pipe 203.

[0157] Base station 20 may include a second valve 24. The second valve 24 may be connected to a third conduit 203. The second valve 24 may be connected to a fourth conduit 204. The second valve 24 may be connected to a fifth conduit 205.

[0158] The second valve 24 may be configured to connect the third pipe 203 to the fourth pipe 204, or to connect the third pipe 203 to the fifth pipe 205. The second valve 24 may be configured to regulate the flow of water guided by the third pipe 203. The second valve 24 may supply water guided by the third pipe 203 to the second water supply unit 231 or the steam generating device 250. For example, the second valve 24 may selectively open the fourth pipe 204 and the fifth pipe 205.

[0159] Furthermore, the ordinal numbers "first" and "second" in the first valve 23 and the second valve 24 do not restrict their configuration. For example, the first valve 23 can be referred to as the second valve 23, and the second valve 24 can be referred to as the first valve 24.

[0160] Figure 14 The diagram illustrates the waste collection operation of a base station according to one embodiment.

[0161] The base station 20 can perform the operation of collecting dirt from the dustbin 141 to empty the dustbin 141 of the robotic vacuum cleaner 10. With the robotic vacuum cleaner 10 positioned on the base station 20, its dustbin 141 can be connected to the suction port 213 of the base station 20. Using the suction force of the suction motor 142 of the base station 20, dirt from the dustbin 141 can be sucked into the base station 20 through the suction port 213. The dirt collection pipe 225 can transfer the dirt sucked in through the suction port 213 to the dirt collection bin 223. Thus, the dirt from the dustbin 141 of the robotic vacuum cleaner 10 can be collected in the dirt collection bin 223 of the base station 20.

[0162] Figure 15 The water supply operation of a sweeping robot according to an embodiment of the base station is shown.

[0163] Base station 20 can perform the operation of supplying water to the robotic vacuum cleaner 10 to fill it with water. The robotic vacuum cleaner 10 can be mounted on base station 20. The water filling section 113 of the robotic vacuum cleaner 10 can interface with the first water supply section 217 of base station 20. A first valve 23 can connect the second piping 202 to the seventh piping 207. A first pump 21 can pump water stored in water tank 221. Water stored in water tank 221 can flow to the first water supply section 217 through the first piping 201, the first pump 21, the second piping 202, the first valve 23, and the seventh piping 207. Water flowing out of the first water supply section 217 can be supplied to the water filling section 113. The seventh piping 207 can be configured to guide the water pumped by the first pump 21 to the robotic vacuum cleaner 10.

[0164] Figure 16 This is a diagram illustrating the water supply operation of the cleaning chamber of a base station according to one embodiment.

[0165] Base station 20 can supply water to cleaning chamber 230 to clean wet cloth 160. First valve 23 connects second pipe 202 to third pipe 203. Second valve 24 connects third pipe 203 to fourth pipe 204. First pump 21 pumps water stored in water tank 221. Water stored in water tank 221 flows to second water supply unit 231 via first pipe 201, first pump 21, second pipe 202, first valve 23, third pipe 203, second valve 24, and fourth pipe 204. Water flowing out of second water supply unit 231 can flow to cleaning chamber 230. Second pipe 204 can be configured to guide water pumped by first pump 21 to cleaning chamber 230.

[0166] For example, while the robot vacuum cleaner 10 is placed at the base station 20, water flowing from the second water supply unit 231 can flow toward the wet mop 160. For example, while the robot vacuum cleaner 10 is placed at the base station 20, water flowing from the second water supply unit 231 can be sprayed onto the wet mop 160 through the water jet nozzle 241. The water flowing from the second water supply unit 231 can be used to clean the wet mop 160.

[0167] Figure 17 The wastewater collection operation of a base station according to one embodiment is shown.

[0168] The cleaning chamber 230 can be filled with water (sewage) that has become dirty after washing the wet cloth 160. The base station 20 can perform the operation of collecting the sewage from the cleaning chamber 230. The second pump 22 can pump air out of the sewage tank 222. The air in the sewage tank 222 can flow to the air outlet 219 through the eighth pipe 208, the second pump 22, and the ninth pipe 209. The air in the sewage tank 222 can be discharged to the outside through the air outlet 219. The sewage tank 222 remains airtight except for the parts connected to the eighth pipe 208 and the tenth pipe 2010. Accordingly, as the second pump 22 operates and extracts air from the sewage tank 222, the inside of the sewage tank 222 can become negative pressure, and the sewage contained in the cleaning chamber 230 can flow to the sewage tank 222 along the tenth pipe 2010. Sewage can fill the sewage tank 222.

[0169] When the sewage in the sewage tank 222 reaches a predetermined water level, the operation of the second pump 22 can be interrupted. For example, a water level sensor (not shown) can be installed in the sewage tank 222 to sense the water level inside the sewage tank 222. As described later, the control unit 290 (see...) Figure 24The operation of the second pump 22 can be controlled based on information obtained through a water level sensor. The control unit 290 can interrupt the operation of the second pump 22 when the water level in the sewage tank 222 reaches a predetermined level.

[0170] For example, a water level sensor can prevent sewage from flowing into the sewage tank 222. The water level sensor can be configured to float due to sewage flowing into the sewage tank 222. When the sewage level in the sewage tank 222 reaches a predetermined level, at least a portion of the water level sensor can be configured to float due to the sewage and cover the portion of the sewage tank 222 connected to the tenth piping 2010 (e.g., connection port, orifice, etc.). Sewage flowing along the tenth piping 2010 can be blocked by the water level sensor, thereby limiting its flow into the sewage tank 222.

[0171] Figure 18 The steam supply operation of a base station according to one embodiment is shown.

[0172] Base station 20 can supply steam to cleaning chamber 230 to sterilize wet cloth 160. First valve 23 connects second pipe 202 to third pipe 203. Second valve 24 connects third pipe 203 to fifth pipe 205. First pump 21 pumps water stored in water tank 221. Water stored in water tank 221 flows to steam generating device 250 via first pipe 201, first pump 21, second pipe 202, first valve 23, third pipe 203, second valve 24, and fifth pipe 205. Steam generating device 250 receives water stored in water tank 221 to generate steam. Steam generated in steam generating device 250 can be guided by sixth pipe 206. Steam guided by sixth pipe 206 can flow to steam supply section 233. Steam flowing out of steam supply section 233 can flow to cleaning chamber 230. For example, while the robot vacuum cleaner 10 is placed at the base station 20, the steam flowing out through the steam supply unit 233 can flow to the wet mop 160. For example, while the robot vacuum cleaner 10 is placed at the base station 20, the steam flowing out through the steam supply unit 233 can be sprayed onto the wet mop 160 through the steam injection port 243.

[0173] Figure 19 The water recycling operation of a base station according to one embodiment is shown.

[0174] Base station 20 can perform the operation of recovering residual water inside steam generator 250 after operation of steam generator 250. First valve 23 can connect second pipe 202 and third pipe 203. Second valve 24 can connect third pipe 203 and fifth pipe 205. First pump 21 can pump residual water in steam generator 250. Water contained in steam generator 250 can flow to water supply tank 221 through fifth pipe 205, second valve 24, third pipe 203, first valve 23, second pipe 202, first pump 21 and first pipe 201.

[0175] Figure 20 The drying operation of a base station according to one embodiment is shown.

[0176] Base station 20 can perform the operation of supplying drying air to cleaning chamber 230 to dry wet mop 160. Drying duct 261 can be configured to guide drying air to cleaning chamber 230. Drying air can be guided by drying duct 261 and flow to drying air supply unit 232. Drying air flowing out of drying air supply unit 232 can flow to cleaning chamber 233. For example, while the robot vacuum cleaner 10 is placed at base station 20, drying air flowing out of drying air supply unit 232 can flow to wet mop 160. For example, while the robot vacuum cleaner 10 is placed at base station 20, drying air flowing out of drying air supply unit 232 can be sprayed towards wet mop 160 through drying air nozzle 242.

[0177] Figure 21 Show along Figure 3 The cross-section shown is taken by the line A-A'. Figure 22 Show along Figure 3 The cross-section shown is taken by line B-B'.

[0178] Reference Figure 21 and Figure 22 The robotic vacuum cleaner 10 can be placed on the base station 20. With the robotic vacuum cleaner 10 placed on the base station 20, the wet mop 160 can be configured to correspond to the cleaning chamber 230 of the base station 20. While the robotic vacuum cleaner 10 is placed on the base station 20, the wet mop 160 can be sterilized by steam discharged from the base station 20. The wet mop 160 can be configured to rotate relative to the main body 110 during steam sterilization. This allows for complete contact between the steam and the wet mop 160.

[0179] The sixth piping 206 may be configured to guide steam generated in the steam generating device 250 to the cleaning chamber 230. One end 206a of the sixth piping 206 may be connected to the steam generating device 250 (see reference 206). Figure 9The other end 206b of the sixth pipe 206 can be connected to the steam supply unit 233. The sixth pipe 206 can communicate with the steam chamber 230.

[0180] The cleaning frame 240 can be detachably mounted to the steam chamber 230. The steam nozzle 243 of the cleaning frame 240 can be configured to correspond to the steam supply unit 233. The steam nozzle 243 can be configured to spray steam guided into the cleaning chamber 230 through the sixth piping 206 toward the wet cloth 160.

[0181] For example, while the robotic vacuum cleaner 10 is placed at the base station 20, at least a portion of the steam nozzle 243 can be positioned below the lower surface of the wet cloth 160. Steam ejected from the steam nozzle 243 can contact the lower surface of the wet cloth 160. At least a portion of the steam ejected from the steam nozzle 253 can move upwards and reach the lower surface of the wet cloth 160. Thus, steam can be concentratedly sprayed onto the lower surface of the wet cloth 160 that is in direct contact with the surface being cleaned. That is, steam can be concentratedly supplied to the lower surface of the wet cloth 160 that most needs sterilization.

[0182] For example, the size of the other end 206b of the sixth pipe 206 can be configured to be larger than the size of the steam injection port 243. For example, the width of the other end 206b of the sixth pipe 206 in the vertical direction (Z direction) can be configured to be larger than the width of the steam injection port 243 in the vertical direction. Therefore, as steam flows from the sixth pipe 206 to the steam injection port 243, which has a relatively smaller size than the sixth pipe 206, the steam velocity can be increased. Thus, steam can be discharged through the steam injection port 243 at a faster speed and can be ejected further. The steam ejected through the steam injection port 243 can easily reach the wet cloth 160.

[0183] Typically, the damp cloth on a robotic vacuum cleaner retains moisture, making it easy for bacteria to multiply. When bacteria multiply on the damp cloth while dirt is stuck to it, the cloth may develop an unpleasant odor, and the cleaned surface may be secondary contaminated. Furthermore, bacteria growing on the damp cloth may affect the user's respiratory health, causing discomfort. Consequently, the cleaning efficiency and ease of use of the cleaning device may be reduced.

[0184] In contrast, according to this disclosure, the base station 20 can spray steam to sterilize the wet cloth 160 of the robotic vacuum cleaner 10. The steam prevents bacteria and the like from multiplying on the wet cloth 160. Therefore, it prevents odors from forming on the wet cloth 160 and secondary contamination of the cleaned surface. Since the wet cloth 160 remains clean, its management becomes easier. Furthermore, if the moisture content of the wet cloth 160 decreases during the cleaning process of the robotic vacuum cleaner 10, the robotic vacuum cleaner 10 can return to the base station 20, and the base station 20 can spray steam towards the wet cloth 160 of the robotic vacuum cleaner 10. That is, the steam can not only be used to sterilize the wet cloth 160, but also to supply moisture to it. For example, when the area to be cleaned is small, the base station 20 can spray steam onto the wet cloth 160. Thus, the wet cloth 160 can easily and quickly absorb moisture. As a result, the cleaning efficiency and ease of use of the cleaning device 1 can be improved.

[0185] Figure 23 A control block diagram of a cleaning robot according to one embodiment is shown.

[0186] Reference Figure 23 According to one embodiment, the robotic vacuum cleaner 10 may include an obstacle sensing sensor 170, a humidity sensor 171, a battery 150, a user interface 181, a driving unit 120, a brush motor 133, a suction motor 142, a drive unit 163, a communication unit 182, and / or a control unit 190.

[0187] The obstacle sensing sensor 170 senses obstacles that impede the movement of the robotic vacuum cleaner 10. An obstacle can refer to any object that protrudes from the floor of the cleaning area and obstructs the movement of the robotic vacuum cleaner 10. For example, not only furniture such as tables and sofas in the cleaning area, but also walls that divide the space can be considered obstacles, and objects that the robotic vacuum cleaner 10 can rise and fall to, such as thresholds or round bars, can also be considered obstacles.

[0188] Specifically, the obstacle sensing sensor 170 can use electromagnetic waves such as infrared, visible light, or ultrasound to sense obstacles non-contactly. For example, the obstacle sensing sensor 170 can detect infrared light reflected from an obstacle after infrared light is irradiated, and can output the intensity of the detected infrared light or the time interval (Time of Flight (TOF)) from the time the infrared light is irradiated to the time interval from the time the reflected infrared light is irradiated to the time the time is irradiated.

[0189] The control unit 190 can calculate the presence or absence of an obstacle or the distance between the obstacle and the robot vacuum cleaner 10 based on the output value of the obstacle sensing sensor 170.

[0190] As another example, the obstacle sensing sensor 170 may include a transmitter that radiates electromagnetic waves and a receiver that receives electromagnetic waves reflected from an obstacle.

[0191] The emitting unit can be mounted in front of the main body 110 to emit electromagnetic waves toward the front of the main body 110. Furthermore, depending on the embodiment, the emitting unit may also include an LED that generates electromagnetic waves and a wide-angle lens that refracts the emitted electromagnetic waves to spread the electromagnetic waves in all directions.

[0192] As yet another example, obstacle sensing sensor 170 may include a camera that acquires images of the vicinity of the robot vacuum cleaner 10 (e.g., in front, behind, and / or to the side).

[0193] The control unit 190 can calculate the presence or absence of an obstacle or the distance between the obstacle and the robot vacuum cleaner 10 based on the image acquired by the obstacle sensing sensor 170.

[0194] The humidity sensor 171 may include at least one sensor for measuring the humidity (or moisture content) of the wet cloth 160.

[0195] In one embodiment, humidity sensor 171 can measure changes in moisture content in the air. Humidity sensor 171 can be positioned around a damp cloth 160 to measure the humidity (or moisture content) of the damp cloth 160. In this case, the output humidity of humidity sensor 171 can be proportional to the moisture content of the damp cloth 160.

[0196] The control unit 190 can determine the humidity (or moisture content) of the wet cloth 160 based on the humidity measured by the humidity sensor 171.

[0197] In one embodiment, the humidity sensor 171 can measure the intensity of electromagnetic waves reflected from the wet cloth 160 after the wet cloth 160 is irradiated with light such as infrared or visible light or electromagnetic waves such as ultrasonic waves, and / or the time interval until the reflected electromagnetic waves are detected after the electromagnetic waves have been irradiated.

[0198] For example, the humidity sensor 171 may include a light-emitting part that illuminates the wet cloth 160 and a light-receiving part that receives the light reflected from the wet cloth 160.

[0199] The control unit 190 can determine the humidity (or moisture content) of the wet cloth 160 based on the output value of the humidity sensor 171.

[0200] The control unit 190 can perform various operations based on the humidity (or moisture content) of the wet cloth 160. For example, the control unit 190 can control the driving unit 120 based on the measured humidity of the wet cloth 160 being above a predetermined maximum humidity, causing the robot vacuum cleaner 10 to return to the base station 20. As another example, the control unit 190 can control the driving unit 120 based on the measured humidity of the wet cloth 160 being below a predetermined minimum humidity, causing the robot vacuum cleaner 10 to return to the base station 20.

[0201] Battery 150 can supply power to various electronic components of the robotic vacuum cleaner 10. Battery 150 can be charged while the robotic vacuum cleaner 10 is placed at base station 20.

[0202] The robotic vacuum cleaner 10 may include a battery sensor that senses the charge level of the battery 150.

[0203] If the charge of the battery 150 drops below a predetermined charge level, the control unit 190 can control the driving unit 120 to make the robot vacuum cleaner 10 return to the base station 20.

[0204] User interface 181 may include output interface and input interface.

[0205] At least one output interface can transmit various information related to the operation of the robot vacuum cleaner 10 to the user by generating sensory information.

[0206] For example, at least one output interface can transmit information related to the settings of the robot vacuum cleaner 10 and the operating time of the robot vacuum cleaner 10 to the user. Information about the operation of the robot vacuum cleaner 10 can be output through a display, indicator, and / or sound. For example, at least one output interface may include a liquid crystal display (LCD) panel, an indicator, a light-emitting diode (LED) panel, a speaker, etc.

[0207] In the case of a display including a touch screen display, the touch screen display can be an example of an output interface and an input interface.

[0208] In one embodiment, at least one output interface can output sensory information (e.g., visual information, auditory information, etc.) related to the control of the robotic vacuum cleaner 10.

[0209] At least one input interface can convert sensory information received from the user into electrical signals.

[0210] At least one input interface may include a power button for turning on the power to the robot vacuum cleaner 10.

[0211] Each button may include a visual indicator (e.g., a phrase, an icon, etc.) that can indicate its function.

[0212] For example, at least one input interface may include a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touchpad, a touch screen, a micro dial, and / or a microphone, etc.

[0213] In this disclosure, a "button" may be replaced by a user interface element, a tactile switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touchpad, a touch screen, a micro dial, and / or a microphone.

[0214] The robot vacuum cleaner 10 can process user input received through the user interface 181 and can output information related to the robot vacuum cleaner 10 through the user interface 181.

[0215] In one embodiment, the user interface 181 may include an input interface for receiving wet cloth cleaning commands and / or wet cloth steam commands.

[0216] If it is determined that the wet mop 160 of the robot vacuum cleaner 10 needs to be cleaned or sterilized, the user can input a wet mop cleaning command and / or a wet mop steam command through the input interface.

[0217] If a wet mop cleaning command and / or a wet mop steam command are input through the input interface, the robot vacuum cleaner 10 can return to the base station 20.

[0218] If a wet cloth cleaning command and / or a wet cloth steam command are input through the input interface, the sweeping robot 10 can transmit a wet cloth cleaning request signal and / or a wet cloth steam request signal to the base station 20.

[0219] Therefore, if the robot vacuum cleaner 10 returns to the base station 20 and docks with the base station 20, the base station 20 can perform a cleaning cycle and / or a steam cycle.

[0220] The driving unit 120 may include driving wheels 121 and 122 mounted on the main body 110 and wheel motors that provide power to the driving wheels 121 and 122.

[0221] The driving wheels 121 and 122 can move the main body 110 by rotating. By rotating the driving wheels 122, the main body 110 can move forward, backward, or rotate. For example, if both the left and right driving wheels 121 and 122 rotate forward, the main body 110 can move forward in a straight line; if both the left and right driving wheels 121 and 122 rotate backward, the main body 110 can move backward in a straight line.

[0222] Furthermore, if the left and right driving wheels 121 and 122 rotate in the same direction but at different speeds, the main body 110 will move to the right or left in a curved path. If the left and right driving wheels 121 and 122 rotate in different directions, the main body 110 can rotate from its original position to the left or right.

[0223] The wheel motor generates rotational force to rotate the travel wheels 121 and 122. The wheel motor can be a DC motor or a BLDC motor, but the embodiment of the robotic vacuum cleaner 10 is not limited to the type of wheel motor. The same applies to other motors included in the robotic vacuum cleaner 10, in addition to the wheel motor.

[0224] Wheel motors may include a left wheel motor that rotates the left driving wheel and a right wheel motor that rotates the right driving wheel.

[0225] Each of the left and right side wheel motors can operate independently of each other according to the control signal of the control unit 190, and the main body 110 can move forward, backward or rotate according to the operation of the left and right side wheel motors.

[0226] The control unit 190 can control the movement of the sweeping robot 10 by controlling the driving unit 120 (e.g., wheel motor).

[0227] The brush motor 133 can rotate the brush 130.

[0228] The control unit 190 can control the brush motor 133 to rotate the brush 130 during dry cleaning, thereby dispersing foreign objects on the floor by the brush 130.

[0229] The suction motor 142 can suck foreign objects scattered by the brush 130 into the dust collection bin 141 and cause the suction fan, which generates the suction force to suck the foreign objects into the dust collection bin 141, to rotate.

[0230] During dry cleaning, the control unit 190 can control the suction motor 142 to rotate the suction fan, so that the foreign objects scattered by the brush 130 can flow into the dust collection bin 141 through the suction port 111.

[0231] The drive unit 163 may include a rotation drive unit 161 for rotating the wet cloth 160 and / or a lifting drive unit 162 for raising or lowering the wet cloth 160.

[0232] The control unit 190 can rotate the wet cloth 160 by controlling the rotary drive unit 161. The rotary drive unit 161 may include a motor for rotating the wet cloth 160 and a drive circuit for driving the motor.

[0233] The control unit 190 can raise or lower the wet cloth 160 by controlling the lifting drive unit 162. That is, the control unit 190 can move the wet cloth 160 by controlling the lifting drive unit 162. The lifting drive unit 162 may include an actuator capable of moving the wet cloth 160.

[0234] The communication unit 182 can communicate with external devices (e.g., servers, user equipment, base stations 20) via wired and / or wireless communication.

[0235] The communication unit 182 can transmit data to or receive data from external devices (e.g., servers, user equipment, base station 20). To this end, the communication unit 182 can support the establishment of direct (e.g., wired) or wireless communication channels between external devices and perform communication through the established communication channels. According to one embodiment, the communication unit 182 may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a Global Navigation Satellite System (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module or a power line communication module). The corresponding communication modules can communicate with external devices through a first network (such as a short-range communication network like Bluetooth, WiFi Direct, or IrDA) or a second network (e.g., a long-range communication network like a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various communication modules can be integrated into a single component (e.g., a single chip), or they can be implemented as multiple independent components (e.g., multiple chips).

[0236] Short-range wireless communication modules can include, but are not limited to, Bluetooth communication modules, Bluetooth Low Energy (BLE) communication modules, Near Field Communication modules, WLAN (Wi-Fi) communication modules, Zigbee communication modules, infrared (IrDA) communication modules, WFD (Wi-Fi Direct) communication modules, ultra-wideband (UWB) communication modules, Ant+ communication modules, and microwave (uWave) communication modules.

[0237] The long-distance communication module may include communication modules that perform various types of long-distance communication, and may include a mobile communication interface. The mobile communication interface transmits and receives wireless signals with at least one of a base station, an external terminal, and a server in a mobile communication network.

[0238] In one embodiment, the communication unit 182 can communicate with external devices via a surrounding connection repeater (access point (AP)). The connection repeater (AP) can connect the local area network (LAN) to which the robotic vacuum cleaner 10 is connected to to the wide area network (WAN) to which the server is connected. The robotic vacuum cleaner 10 can then connect to the server via the WAN.

[0239] In one embodiment, the communication unit 182 can communicate wirelessly with the base station 20.

[0240] The control unit 190 can control the overall operation of the sweeping robot 10.

[0241] The control unit 190 may include at least one processor 191 for controlling the operation of the robotic vacuum cleaner 10 and at least one memory 192 storing programs and data for controlling the operation of the robotic vacuum cleaner 10.

[0242] At least one processor 191 controls the overall operation of the robotic vacuum cleaner 10. Specifically, at least one processor 191 may be connected to various components of the robotic vacuum cleaner 10 to control the overall operation of the robotic vacuum cleaner 10. For example, at least one processor 191 may be electrically connected to a memory 192 to control the overall operation of the robotic vacuum cleaner 10. The processor 191 may be configured using one or more processors.

[0243] At least one processor 191 can perform the operation of the robotic vacuum cleaner 10 according to various embodiments by executing at least one instruction stored in memory 192.

[0244] At least one memory 192 can store data required for various embodiments. Depending on the data storage purpose, the memory 192 can be implemented as a memory embedded in the robot vacuum cleaner 10, or as a memory removable from the robot vacuum cleaner 10. For example, data for driving the robot vacuum cleaner 10 can be stored in a memory embedded in the robot vacuum cleaner 10, while data for extended functions of the robot vacuum cleaner 10 can be stored in a memory removable from the robot vacuum cleaner 10. Additionally, the memory embedded in the robotic vacuum cleaner 10 can be implemented as at least one of the following: volatile memory (e.g., dynamic random access memory (DRAM), static random access memory (SRAM), or synchronous dynamic random access memory (SDRAM)). Furthermore, the memory that can be detached and installed in the robot vacuum cleaner 10 can be implemented in the form of a memory card (e.g., compact flash (CF), secure digital (SD), micro-secure digital (Micro-SD), mini secure digital (Mini-SD), extreme digital (xD), multi-media card (MMC), etc.) or an external memory that can be connected to a USB port (e.g., a USB memory).

[0245] At least one processor 191 may include one or more of a central processing unit (CPU), a graphics processing unit (GPU), an accelerated processing unit (APU), a many integrated core (MIC), a digital signal processor (DSP), a neural processing unit (NPU), a hardware accelerator, and a machine learning accelerator. At least one processor 191 can control one or any combination of other components of the robotic vacuum cleaner 10 and can perform operations related to communication or data processing. At least one processor 191 can execute at least one program or instruction stored in memory 192. For example, at least one processor 191 can perform a method according to at least one embodiment of the present disclosure by executing at least one instruction stored in memory 192.

[0246] In one embodiment, the control unit can control the drive unit 163 according to predetermined conditions. Controlling the drive unit 163 may include rotating or moving the wet cloth 160.

[0247] In one embodiment, the control unit can control the driving unit 120 according to predetermined conditions. Controlling the driving unit 120 may include moving the robotic vacuum cleaner 10.

[0248] In one embodiment, the control unit can control the brush motor 133 and / or the suction motor 142 according to predetermined conditions.

[0249] Figure 24 A control block diagram of a base station according to one embodiment is shown.

[0250] Reference Figure 24 The base station 20 may include a docking sensing sensor 270, a suction motor 224, a user interface 281, a communication unit 282, a first pump 21, a second pump 22, a first valve 23, a second valve 24, a steam generating device 250, a drying device 260, and / or a control unit 290.

[0251] The docking sensing sensor 270 can sense whether the robotic vacuum cleaner 10 is docked with the base station 20. The docking sensing sensor 270 may include at least one sensor that senses mechanical changes and / or electrical changes when the robotic vacuum cleaner 10 docks with the base station 20.

[0252] For example, docking sensing sensor 270 may include a sensor that senses whether the charging terminal 151 of the robotic vacuum cleaner 10 is electrically connected to the charging terminal 218 of the base station 20. As yet another example, docking sensing sensor 270 may include a sensor (e.g., an elastic sensor) that senses mechanical deformation of the robotic vacuum cleaner 10 when it is docked.

[0253] The control unit 290 can determine whether the robot vacuum cleaner is docked with the base station based on the output value of the docking sensing sensor 270.

[0254] The suction motor 224 can generate suction force for sucking up dirt from the dust collection bin 141.

[0255] The control unit 290 can operate the suction motor 224 to suck the dirt from the dust collection bin 141 into the dirt collection bin 223.

[0256] The operation of the suction motor 224 operated by the control unit 290 to suck the dirt from the dust collection bin 141 into the dirt collection bin 223 can be referred to as the suction stroke.

[0257] User interface 281 may include output interface and input interface.

[0258] At least one output interface can transmit various information related to the operation of the base station to the user by generating sensory information.

[0259] For example, at least one output interface can transmit information related to the base station's settings and operating time to the user. Information about the base station's operation can be output via a display, indicator, and / or voice. For example, at least one output interface may include a liquid crystal display (LCD) panel, an indicator, a light-emitting diode (LED) panel, a speaker, etc.

[0260] In the case of a display including a touch screen display, the touch screen display can be an example of an output interface and an input interface.

[0261] In one embodiment, at least one output interface can output sensory information (e.g., visual information, auditory information, etc.) related to the control of the base station.

[0262] At least one input interface can convert sensory information received from the user into electrical signals.

[0263] At least one input interface may include a power button for powering on the base station.

[0264] Each button may include a visual indicator (e.g., a phrase, an icon, etc.) that can indicate its function.

[0265] For example, at least one input interface may include a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touchpad, a touch screen, a micro dial, and / or a microphone, etc.

[0266] In this disclosure, "button" may be replaced by a user interface element, tact switch, push switch, slide switch, toggle switch, micro switch, touch switch, touchpad, touch screen, micro dial and / or microphone.

[0267] Base station 20 can process user input received through user interface 281, and can also output base station-related information through user interface 281.

[0268] In one embodiment, the user interface 281 may include an input interface for receiving wet cloth cleaning commands and / or wet cloth steam commands.

[0269] If it is determined that the wet mop 160 of the robot vacuum cleaner 10 needs to be cleaned or sterilized, the user can input a wet mop cleaning command and / or a wet mop steam command through the input interface.

[0270] Base station 20 can execute a cleaning cycle, a steaming cycle, and / or a drying cycle in response to a wet cloth cleaning command and / or a wet cloth steam command input through user interface 281.

[0271] The communication unit 282 can communicate with external devices (e.g., servers, user equipment, robot vacuum cleaner 10) via wired and / or wireless communication.

[0272] The communication unit 282 can transmit data to or receive data from external devices (e.g., servers, user equipment, robotic vacuum cleaner 10). To this end, the communication unit 282 can support the establishment of direct (e.g., wired) or wireless communication channels between external devices and perform communication through these established channels. According to one embodiment, the communication unit 282 may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a Global Navigation Satellite System (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module or a power line communication module). The corresponding communication modules can communicate with external devices via a first network (such as a short-range communication network like Bluetooth, WiFi Direct, or IrDA) or a second network (e.g., a long-range communication network like a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various communication modules can be integrated into a single component (e.g., a single chip), or they can be implemented as multiple independent components (e.g., multiple chips).

[0273] Short-range wireless communication modules can include, but are not limited to, Bluetooth communication modules, Bluetooth Low Energy (BLE) communication modules, Near Field Communication modules, WLAN (Wi-Fi) communication modules, Zigbee communication modules, infrared (IrDA) communication modules, WFD (Wi-Fi Direct) communication modules, ultra-wideband (UWB) communication modules, Ant+ communication modules, and microwave (uWave) communication modules.

[0274] The long-distance communication module may include communication modules that perform various types of long-distance communication, and may include a mobile communication interface. The mobile communication interface transmits and receives wireless signals with at least one of a base station, an external terminal, and a server in a mobile communication network.

[0275] In one embodiment, the communication unit 282 can communicate with external devices via surrounding connection repeaters (access points (APs)). The connection repeater (AP) can connect the local area network (LAN) to which the robotic vacuum cleaner 10 is connected to to the wide area network (WAN) to which the server is connected. The base station 20 can connect to the server via the wide area network (WAN).

[0276] In one embodiment, the communication unit 282 can communicate wirelessly with the robotic vacuum cleaner 10.

[0277] Various methods can be used to communicate between the robotic vacuum cleaner 10 and the base station 20.

[0278] In one embodiment, the robotic vacuum cleaner 10 and the base station 20 can communicate directly via a short-range communication module.

[0279] In one embodiment, the robot vacuum cleaner 10 and the base station 20 can communicate directly via wired communication while the robot vacuum cleaner 10 and the base station 20 are connected.

[0280] In one embodiment, the robotic vacuum cleaner 10 and the base station 20 can communicate indirectly via an external server through a long-distance communication module.

[0281] Indirect communication via an external server may include the following scenarios: if the robot vacuum cleaner 10 transmits a predetermined signal to the external server, the external server will transmit the predetermined signal received from the robot vacuum cleaner 10 to the base station 20 and / or if the base station 20 transmits a predetermined signal to the external server, the external server will transmit the predetermined signal received from the base station 20 to the robot vacuum cleaner 10.

[0282] The first pump 21 may be equipped to pump water stored in the water supply tank 221 or water contained in the steam generating device 250.

[0283] When the internal configuration of the first pump 21 rotates in a first direction, it pumps water stored in the water supply tank 221, and when the internal configuration of the first pump 21 rotates in a second direction opposite to the first direction, it pumps water contained in the steam generating device 250.

[0284] The control unit 290 can control the pumping direction of the first pump 21 and enable the first pump 21 to operate.

[0285] The second pump 22 can be equipped with air for pumping the sewage tank 222.

[0286] The control unit 290 can operate the second pump 22.

[0287] A water level sensor (not shown) equipped in the sewage tank 222 can transmit information related to the water level of the sewage tank 222 to the control unit 290.

[0288] The control unit 290 can control the second pump 22 based on information obtained through the water level sensor. The control unit 290 can also stop the second pump 22 when the water level in the sewage tank 222 reaches a preset level.

[0289] The first valve 23 can be configured to regulate the flow of water pumped by the first pump 21, and can be operated based on the control signal of the control unit 290.

[0290] The second valve 24 can be configured to regulate the flow of water guided by the third piping 203, and can be operated based on the control signal of the control unit 290.

[0291] The steam generating device 250 may include a heater 252, a water level sensor 253 and / or a temperature sensor 254.

[0292] The heater 252 can be equipped to heat the water contained in the steam tank 251 and can be operated based on the control signal of the control unit 290.

[0293] A water level sensor 253 can be configured to sense the water level inside the steam tank 251.

[0294] For example, the water level sensor 253 can be implemented as a pressure sensor, optical sensor, ultrasonic sensor, etc., capable of measuring the water level in the steam tank 251.

[0295] As another example, the water level sensor 253 can be implemented as an electrode sensor capable of sensing that the water level in the steam tank 251 has reached a predetermined water level.

[0296] The water level sensor 253 can transmit information about the water level in the steam tank 251 to the control unit 290.

[0297] In one embodiment, the water level sensor 253 can sense that the water level in the steam tank 251 has reached a predetermined water level, and can be configured to transmit an electrical signal to the control unit 290 in response to the water level in the steam tank 251 reaching the predetermined water level.

[0298] The control unit 290 can operate the heater 252 based on the preset water level sensed by the water level sensor 253.

[0299] Temperature sensor 254 can be equipped to sense the temperature inside steam barrel 251 and can transmit information related to the temperature inside steam barrel 251 to control unit 290.

[0300] In one embodiment, the control unit 290 can control the heater 252 based on temperature information received from the temperature sensor 254. For example, the control unit 290 can interrupt the operation of the heater 252 based on the temperature sensed by the temperature sensor 254 reaching a predetermined temperature.

[0301] The control unit 290 can perform the steam stroke by controlling at least one pump 21, 22, at least one valve 23, 24 and steam generating device 250 described above.

[0302] In one embodiment, the control unit 290 may initiate a steam stroke in response to the satisfaction of the steam stroke start condition.

[0303] The control unit 290 can control the first valve 23 to connect the second pipe 202 and the third pipe 203, control the second valve 24 to connect the third pipe 203 and the fifth pipe 205, and control the first pump 21 to pump water stored in the water supply tank 221 in response to the start of the steam stroke. Accordingly, the water stored in the water supply tank 221 can flow to the steam generating device 250 through the first pipe 201, the first pump 21, the second pipe 202, the first valve 23, the third pipe 203, the second valve 24, and the fifth pipe 205.

[0304] Subsequently, the control unit 290 can operate the heater 252 based on a preset water level sensed by the water level sensor 253, thereby enabling steam to be injected from the steam generating device 253 into the cleaning chamber 230. The control unit 290 can also stop the operation of the first pump 21 based on a preset water level sensed by the water level sensor 253.

[0305] The control unit 290 can operate the heater 252 based on the water level sensed by the water level sensor 253 until the steam cycle ends. During the steam cycle, the operation of the heater 252 can be temporarily interrupted based on the temperature sensed by the temperature sensor 254 reaching the preset temperature, thereby preventing the heater 252 from overheating.

[0306] The control unit 290 can terminate the steam cycle based on the satisfaction of the steam cycle termination conditions.

[0307] In one embodiment, the control unit 290 may terminate the steam cycle in response to a preset water level (minimum water level) sensed by the water level sensor 253.

[0308] In one embodiment, the control unit 290 may terminate the steam stroke in response to a predetermined time elapsed during the execution of the steam stroke.

[0309] The control unit 290 can perform a water recovery operation in response to the end of the steam cycle.

[0310] In one embodiment, the control unit 290 may perform a water recovery operation based on a predetermined time elapsed after the steam cycle ends.

[0311] In one embodiment, the control unit 290 may perform a water recovery operation based on a predetermined time elapsed after the heater 252 is disconnected in response to the end of the steam stroke.

[0312] The predetermined time can be preset to the time it takes for the water heated by the steam generator 253 to cool sufficiently.

[0313] In one embodiment, the control unit 290 can perform a water recycling operation based on the temperature sensing by the temperature sensor dropping below a predetermined temperature after the heater 252 is disconnected in response to the end of the steam cycle.

[0314] According to this disclosure, hot water can be recycled to water supply tank 221 to prevent microorganisms from multiplying in water supply tank 221.

[0315] The control unit 290 can control the first valve 23 to connect the second pipe 202 and the third pipe 203, control the second valve 24 to connect the third pipe 203 and the fifth pipe 205, and control the first pump 21 to pump the water remaining in the steam generating device 250 in response to the end of the steam stroke. Accordingly, the water contained in the steam generating device 250 can flow to the water supply tank 221 through the fifth pipe 205, the second valve 24, the third pipe 203, the first valve 23, the second pipe 202, the first pump 21, and the first pipe 201.

[0316] The control unit 290 can disconnect the heater 252 in response to the end of the steam cycle.

[0317] The control unit 290 can terminate the water recycling operation according to various conditions.

[0318] In one embodiment, the control unit 290 may terminate the water recycling operation in response to a predetermined time elapsed during the execution of the water recycling operation.

[0319] In one embodiment, if the water recycling operation is completed, the control unit 290 may start the drying cycle.

[0320] The drying device 260 may include a heater 263 for heating air and a fan 262 for supplying heated air. The air heated by the heater 263 may be supplied to the cleaning chamber 230 according to the operation of the fan 262.

[0321] The control unit 290 can control the drying device 260 to send heated air to the cleaning chamber 230 to perform the drying cycle.

[0322] The control unit 290 can perform the drying cycle by operating the heater 263 and the fan 262.

[0323] The control unit 290 can end the drying cycle according to the drying cycle end conditions.

[0324] In one embodiment, the control unit 290 may terminate the drying cycle in response to a predetermined time elapsed during the execution of the drying cycle.

[0325] In one embodiment, the control unit 290 may terminate the drying cycle in response to receiving a drying end request signal from the robotic vacuum cleaner 10. To this end, the robotic vacuum cleaner 10 may be configured to transmit a drying end request signal to the base station 20 in response to the humidity measured by the humidity sensor 171 dropping below a predetermined humidity level during the drying cycle.

[0326] The control unit 290 can control the overall operation of the base station 20.

[0327] The control unit 290 may include at least one processor 291 for controlling the operation of the base station 20 and at least one memory 292 storing programs and data for controlling the operation of the base station 20.

[0328] At least one processor 291 controls the overall operation of the base station 20. Specifically, at least one processor 291 can be connected to various components of the base station 20 to control the overall operation of the base station 20. For example, at least one processor 291 can be electrically connected to a memory 292 to control the overall operation of the base station 20. The processor 291 can be configured using one or more processors.

[0329] At least one processor 291 can perform the operation of the base station 20 according to various embodiments by executing at least one instruction stored in memory 292.

[0330] At least one memory 292 can store data required for various embodiments. Depending on the data storage purpose, the memory 292 can be implemented as a memory embedded in the base station 20, or as a memory removable from the base station 20. For example, data for driving the base station 20 can be stored in a memory embedded in the base station 20, while data for extended functions of the base station 20 can be stored in a memory removable from the base station 20. Additionally, the memory embedded in the base station 20 can be implemented as at least one of the following: volatile memory (e.g., dynamic random access memory (DRAM), static random access memory (SRAM), or synchronous dynamic random access memory (SDRAM)). Furthermore, the memory that can be removably mounted to the base station 20 can be implemented in the form of a memory card (e.g., compact flash (CF), secure digital (SD), micro-secure digital (Micro-SD), mini secure digital (Mini-SD), extreme digital (xD), multi-media card (MMC), etc.) or an external memory that can be connected to a USB port (e.g., a USB memory).

[0331] At least one processor 291 may include one or more of a central processing unit (CPU), a graphics processing unit (GPU), an accelerated processing unit (APU), a many integrated core (MIC), a digital signal processor (DSP), a neural processing unit (NPU), a hardware accelerator, and a machine learning accelerator. At least one processor 291 may control one or any combination of other components of the base station 20 and may perform operations or data processing related to communication. At least one processor 291 may execute at least one program or instruction stored in memory 292. For example, at least one processor 291 may perform a method according to at least one embodiment of the present disclosure by executing at least one instruction stored in memory 292.

[0332] Figure 25 This is a flowchart illustrating an example of a method for cleaning a wet cloth from a robotic vacuum cleaner according to an embodiment.

[0333] Reference Figure 25 According to one embodiment, the robotic vacuum cleaner 10 can return to the base station 20 in response to the fulfillment of the base station return condition.

[0334] For example, the robot vacuum cleaner 10 can return to the base station 20 in response to the battery 150's charge level dropping below a predetermined charge level.

[0335] As another example, the robot vacuum cleaner 10 can return to the base station 20 in response to the humidity of the wet mop 160 measured by the humidity sensor 171 being above a predetermined maximum humidity.

[0336] As another example, the robot vacuum cleaner 10 can return to the base station 20 in response to the humidity of the wet mop 160 measured by the humidity sensor 171 being below a predetermined minimum humidity.

[0337] As another example, the robotic vacuum cleaner 10 can return to the base station 20 in response to receiving a base station return command from an external device (e.g., a server, user equipment, or base station 20).

[0338] As another example, the robotic vacuum cleaner 10 can return to the base station 20 in response to the completion of cleaning according to the cleaning plan.

[0339] As another example, the robotic vacuum cleaner 10 can return to the base station 20 in response to the wet mop 160 being more than a predetermined level of soiling. To this end, the robotic vacuum cleaner 10 may also include a separate sensor for measuring the soiling level of the wet mop 160, and may also infer the soiling level of the wet mop 160 based on the output value of the humidity sensor 171.

[0340] As another example, the robotic vacuum cleaner 10 can return to the base station 20 in response to the dustbin 141 being full. The dustbin 141 being full may include a situation where a sensor for measuring the amount of foreign matter stored in the dustbin 141 senses that the amount of foreign matter is greater than a predetermined amount.

[0341] As another example, the robotic vacuum cleaner 10 can return to the base station 20 in response to insufficient water in the water tank 114. Insufficient water in the water tank 114 may include a situation where the amount of water is detected as below a predetermined amount by a sensor used to measure the amount of water stored in the water tank 114.

[0342] Base station 20 can start the cleaning cycle (S1) in response to the robot vacuum cleaner 10 docking with base station 20 and the cleaning conditions being met.

[0343] In one embodiment, the base station 20 can receive a wet cloth cleaning request signal from the sweeping robot 10 while the sweeping robot 10 is docked with the base station 20, or the sweeping robot 10 can dock with the base station 20 to start the cleaning process after receiving the wet cloth cleaning request signal from the sweeping robot 10.

[0344] Therefore, if it is determined that the wet cloth 160 needs to be cleaned, the robot vacuum cleaner 10 can send a wet cloth cleaning request signal to the base station 20.

[0345] For example, if cleaning is completed according to the cleaning plan, the robot vacuum cleaner 10 can determine that the wet cloth 160 needs to be washed.

[0346] As another example, the robot vacuum cleaner 10 can determine that the wet cloth 160 needs to be cleaned in response to receiving a wet cloth cleaning command from an external device (e.g., a server, a user device).

[0347] As another example, the robot vacuum cleaner 10 can determine that the wet cloth 160 needs to be cleaned in response to the humidity of the wet cloth 160 measured by the humidity sensor 171 being below a predetermined minimum humidity.

[0348] As another example, the robot vacuum cleaner 10 can determine that the wet cloth 160 needs to be cleaned if the level of soiling of the wet cloth 160 is above a predetermined level.

[0349] As yet another example, the robot vacuum cleaner 10 can determine that the wet mop 160 needs to be washed in response to insufficient water in the bucket 114.

[0350] Base station 20 can perform the operation of supplying water to cleaning chamber 230 for the cleaning process.

[0351] For example, the control unit 290 can control the first valve 23 to connect the second pipe 202 to the third pipe 203, control the second valve 24 to connect the third pipe 203 to the fourth pipe 204, and control the first pump 21 to pump water stored in the water supply tank 221 to perform the cleaning cycle.

[0352] During the cleaning process, water stored in the water supply tank 221 can flow to the second water supply unit 231 through the first pipe 201, the first pump 21, the second pipe 202, the first valve 23, the third pipe 203, the second valve 24, and the fourth pipe 204. The water flowing out of the second water supply unit 231 can flow to the cleaning chamber 230, thereby cleaning the wet rag 160 in the cleaning chamber 230.

[0353] Base station 20 can transmit a cleaning start signal (S2) to robot vacuum cleaner 10 in response to the start of the cleaning cycle.

[0354] The cleaning start signal, used to notify that the cleaning process has started, can be transmitted from the base station 20 to the robot vacuum cleaner 10 in various ways.

[0355] In one embodiment, the base station 20 may transmit a cleaning start signal to the sweeping robot 10 before or after operating the first pump 21.

[0356] The robot vacuum cleaner 10 can rotate the wet mop 160 in response to receiving a cleaning start signal from the base station 20 (S3).

[0357] In one embodiment, the control unit 190 may control the rotation drive unit 161 to rotate the wet cloth 160 in response to receiving a cleaning start signal from the base station 20 via the communication unit 182.

[0358] According to various embodiments, the control unit 190 can control the lifting drive unit 162 in response to receiving a cleaning start signal from the base station 20 via the communication unit 182, so as to move (raise or lower) the wet cloth 160 to a predetermined height suitable for cleaning. Data regarding the predetermined height suitable for cleaning can be pre-stored in the memory 192. According to this disclosure, the wet cloth 160 rotates during the cleaning stroke to achieve effective cleaning of the wet cloth 160.

[0359] Base station 20 can terminate the cleaning process in response to the fulfillment of the cleaning process termination condition (S4). Base station 20 can perform a wastewater collection operation in response to the termination of the cleaning process.

[0360] For example, the control unit 290 can control the first valve 23 to block the second pipe 202 and the third pipe 203, control the second valve 24 to block the third pipe 203 and the fourth pipe 204, and stop the operation of the first pump 21 to end the cleaning cycle.

[0361] The control unit 290 can perform the sewage collection operation by activating the second pump 22 to pump the air inside the sewage tank 222 to the outside.

[0362] If the air pump inside the sewage tank 222 is sent to the outside, the inside of the sewage tank 222 can become negative pressure, and the sewage contained in the cleaning chamber 230 can flow to the sewage tank 222 along the tenth pipe 2010.

[0363] The conditions for ending the cleaning cycle may include various conditions such as the cleaning cycle running for a predetermined time, or the water level in the water tank 221 dropping below a predetermined level.

[0364] Base station 20 can send a cleaning end signal to robot vacuum cleaner 10 in response to the end of the cleaning cycle (S5).

[0365] The cleaning end signal is a signal used to notify that the cleaning cycle has ended, and it can be transmitted from the base station 20 to the robot vacuum cleaner 10 in various ways.

[0366] In one embodiment, the base station 20 may transmit a cleaning end signal to the robot vacuum cleaner 10 before or after the first pump 21 is stopped.

[0367] The robot vacuum cleaner 10 can stop rotating the wet mop 160 in response to receiving a cleaning end signal from the base station 20 (S6).

[0368] In one embodiment, the control unit 190 may control the rotation drive unit 161 to stop the rotation of the wet cloth 160 in response to receiving a cleaning end signal from the base station 20 via the communication unit 182.

[0369] According to this disclosure, it is possible to prevent the wet rag 160 from continuously generating sewage during the sewage collection operation performed by the base station 20.

[0370] Additionally, base station 20 can initiate a steam cycle (S7) in response to the completion of the wastewater collection operation. That is, base station 20 can initiate a steam cycle based on the completion of the cleaning cycle.

[0371] The conditions for ending wastewater collection include various conditions such as the wastewater collection operation time having elapsed for a predetermined period of time, the water level in the wastewater tank 222 reaching a predetermined level, and the flow sensor sensing the flow rate to the wastewater tank 222 not detecting any change in flow rate.

[0372] According to various embodiments, base station 20 may, of course, omit the cleaning cycle and begin the steam cycle. For example, base station 20 may begin the steam cycle (S7) in response to receiving a wet cloth steam request signal from an external device (e.g., a server, user equipment, or robotic vacuum cleaner 10). The term "wet cloth steam request signal" may also be replaced by the term "steam operation signal" from the perspective of guiding the steam cycle of base station 20.

[0373] In one embodiment, the robotic vacuum cleaner 10 can transmit a steam operation signal to the base station 20 in response to receiving a wet mop steam command via the user interface 181.

[0374] In one embodiment, if the humidity of the wet cloth 160 is below a predetermined minimum humidity or above a predetermined maximum humidity, and the degree of soiling of the wet cloth 160 is below a predetermined degree of soiling, the robot vacuum cleaner 10 can transmit a steam operation signal to the base station 20.

[0375] In one embodiment, the user equipment may transmit a steam operation signal to the base station 20 in response to receiving a wet mop steam command via an application for controlling the robotic vacuum cleaner 10.

[0376] As described above, the base station 20 can perform a steam stroke by controlling at least one pump 21, 22, at least one valve 23, 24, and a steam generating device 250.

[0377] Base station 20 can transmit a steam start signal to robot vacuum cleaner 10 based on the start of steam stroke (S8).

[0378] The robot vacuum cleaner 10 can rotate the wet mop 160 in response to receiving a steam start signal from the base station 20 (S9).

[0379] In one embodiment, the control unit 190 may control the rotary drive unit 161 to rotate the wet cloth 160 based on receiving a steam start signal from the base station 20 via the communication unit 182.

[0380] For example, the control unit 190 can control the rotary drive unit 161 to rotate the wet cloth 160 based on a predetermined time elapsed after receiving the steam start signal from the base station 20 via the communication unit 182.

[0381] As another example, after receiving a steam start signal from the base station 20 via the communication unit 182, the control unit 190 can control the rotary drive unit 161 to rotate the wet cloth 160 based on the temperature sensed by the temperature sensor 254 reaching a preset temperature.

[0382] According to this disclosure, by rotating the wet cloth 160 at the point when steam is generated in the steam generating device 253, unnecessary rotation of the wet cloth 160 before steam is generated in the steam generating device 253 can be prevented.

[0383] According to various embodiments, the control unit 190 can control the lifting drive unit 162 in response to receiving a steam start signal from the base station 20 via the communication unit 182, causing the wet cloth 160 to move (rise or fall) to a predetermined height suitable for sterilization. Data regarding the predetermined height suitable for sterilization can be pre-stored in the memory 192.

[0384] In one embodiment, the predetermined height suitable for sterilization can be higher than the predetermined height suitable for cleaning. That is, the height of the wet cloth 160 during the steam stroke can be higher than the height of the wet cloth 160 during the cleaning stroke. Accordingly, the steam injected through the steam jet 243 can sterilize the entire wet cloth 160.

[0385] Furthermore, according to various embodiments, the control unit 190 can control the lifting drive unit 162 in response to receiving a cleaning end signal from the base station 20 via the communication unit 182, so that the wet cloth 160 is pre-moved (raised or lowered) to a predetermined height suitable for sterilization.

[0386] According to this disclosure, the wet cloth 160 is effectively sterilized by rotating the wet cloth 160 during the steam stroke.

[0387] Base station 20 can terminate the steam cycle in response to the fulfillment of the steam cycle termination condition (S10).

[0388] If the steam cycle ends, the base station 20 can disconnect the heater 252.

[0389] If the steam cycle ends, base station 20 can begin water recycling operations.

[0390] Base station 20 can transmit a steam cycle end signal to robot vacuum cleaner 10 in response to the end of steam cycle (S11).

[0391] The robot vacuum cleaner 10 can stop rotating the wet mop 160 in response to receiving a steam end signal from the base station 20 (S12).

[0392] In one embodiment, the control unit 190 may control the rotation drive unit 161 to stop the rotation of the wet cloth 160 in response to receiving a steam end signal from the base station 20 via the communication unit 182.

[0393] According to this disclosure, it is possible to prevent the wet cloth 160 from continuously generating wastewater during the water recycling operation performed by the base station 20.

[0394] Additionally, base station 20 can start the drying cycle (S13) in response to the completion of the water recycling operation. That is, base station 20 can start the drying cycle based on the completion of the steam cycle.

[0395] According to various embodiments, base station 20 may omit the cleaning cycle and / or steam cycle and may initiate a drying cycle. For example, base station 20 may initiate a drying cycle (S13) in response to receiving a wet cloth drying request signal from an external device (e.g., server, user equipment, robot vacuum cleaner 10). The term "wet cloth drying request signal" may also be replaced by the term "drying operation signal" from the perspective of guiding the steam cycle of base station 20.

[0396] In one embodiment, the robotic vacuum cleaner 10 may transmit a drying operation signal to the base station 20 in response to receiving a wet cloth drying command through the user interface 181.

[0397] In one embodiment, if the humidity of the wet cloth 160 is sensed to be above a predetermined maximum humidity and the degree of soiling of the wet cloth 160 is sensed to be below a predetermined degree of soiling, the robot vacuum cleaner 10 can transmit a drying operation signal to the base station 20.

[0398] For example, if the floor is cleaned by wiping with a damp cloth 160, the robot vacuum cleaner 10 can send a drying operation signal to the base station 20, which increases the humidity without increasing the degree of contamination of the damp cloth 160.

[0399] In one embodiment, the user equipment may transmit a drying operation signal to the base station 20 in response to receiving a wet cloth drying command via an application for controlling the robotic vacuum cleaner 10.

[0400] As described above, the base station 20 can execute the drying cycle by controlling the drying device 260.

[0401] Base station 20 can transmit a drying start signal to robot vacuum cleaner 10 based on the start of the drying cycle (S14).

[0402] The robot vacuum cleaner 10 can rotate the wet mop 160 in response to receiving a drying start signal from the base station 20 (S15).

[0403] In one embodiment, the control unit 190 may control the rotation drive unit 161 to rotate the wet cloth 160 in response to receiving a drying start signal from the base station 20 via the communication unit 182.

[0404] According to various embodiments, the control unit 190 can control the lifting drive unit 162 in response to receiving a drying start signal from the base station 20 via the communication unit 182, so that the wet cloth 160 can be moved (raised or lowered) to a predetermined height suitable for drying. Data regarding the predetermined height suitable for drying can be pre-stored in the memory 192.

[0405] According to this disclosure, the wet cloth 160 is effectively dried by rotating the wet cloth 160 during the drying process.

[0406] Base station 20 can terminate the drying cycle in response to the fulfillment of the drying cycle termination condition (S16).

[0407] If the steam cycle ends, the base station 20 can disconnect the drying device 260.

[0408] Base station 20 can transmit a drying cycle end signal to robot vacuum cleaner 10 in response to the end of the drying cycle (S17).

[0409] The robot vacuum cleaner 10 can stop rotating the wet mop 160 in response to receiving a drying end signal from the base station 20 (S18).

[0410] In one embodiment, the control unit 190 may control the rotation drive unit 161 to stop the rotation of the wet cloth 160 in response to receiving a drying end signal from the base station 20 via the communication unit 182.

[0411] According to this disclosure, the wet cloth 160 is converted into a state with low contamination and sterilization through a washing cycle, a steam cycle and a drying cycle, so that the robot vacuum cleaner 10 can use the clean wet cloth to perform wet cleaning.

[0412] A cleaning device according to one embodiment may include: a robotic vacuum cleaner 10, including a main body 110 and a wet mop 160 detachably mounted on the lower part of the main body; and a base station 20, configured for placing the robotic vacuum cleaner 10. The base station 20 may include: a water tank 221 configured for storing water; a cleaning chamber 230 corresponding to the wet mop 160 during the placement of the robotic vacuum cleaner 10 on the base station 20; a steam generating device 250 for generating steam using the water stored in the water tank 221; a pump 21 configured for pumping the water stored in the water tank 221; a first pipe 204 configured to guide the water pumped by the pump 21 to the cleaning chamber 230; and a second pipe 205, separate from the first pipe 204 and configured to guide the water pumped by the pump 21 to the steam generating device 250.

[0413] The base station 20 may further include: a valve 24 connected to the first piping 204 and the second piping 205; and a third piping 203 disposed between the pump 21 and the valve 24, and configured to allow water pumped by the pump 21 to flow. The valve 24 may be configured to connect the third piping 203 to the first piping 204, or to connect the third piping 203 to the second piping 205.

[0414] The valve may be a first valve 24. The base station 20 may further include: a second valve 23, connected to the third piping 203, arranged such that the third piping 203 is provided between the first valve 24 and the second valve 23; a fourth piping 202, connecting the pump 21 and the second valve 23, and configured to allow water pumped by the pump 21 to flow; and a fifth piping 207, configured to guide water flowing in the fourth piping 202 to a robotic vacuum cleaner 10 placed on the base station 20. The second valve 23 may be configured to connect the fourth piping 202 to the third piping 203, or to connect the fourth piping 202 to the fifth piping 207.

[0415] The base station 20 may further include a third conduit 206, configured to guide steam generated in the steam generating device 250 to the cleaning chamber 230. The third conduit 206 may include a first end 206a communicating with the steam generating device 250 and a second end 206b communicating with the cleaning chamber 230.

[0416] The base station 20 may further include a cleaning frame 240, detachably mounted to the cleaning chamber 230, and configured to rub against the wet mop 160 during the placement of the robotic vacuum cleaner 10 on the base station 20. The cleaning frame 240 may include a steam jet nozzle 243, configured to spray steam directed to the cleaning chamber 230 via the third conduit 206 toward the wet mop 160.

[0417] The second piping 205 can be connected to the lower part of the steam generating device 250. The third piping 206 can be connected to the upper part of the steam generating device 250.

[0418] The steam generating device 250 may be arranged below the water supply tank 221. The third piping 206 may include a bend 2061 configured to be highly bent between the steam generating device 250 and the water supply tank 221.

[0419] During the period when the robotic vacuum cleaner 10 is placed on the base station 20, at least a portion of the steam jet 243 may be arranged below the lower surface of the wet mop 160.

[0420] The second end 206b of the third pipe 206 can be configured to be larger than the size of the steam injection port 243.

[0421] The bottom 230a of the cleaning chamber 230 may be configured to tilt downwards along the direction in which the sweeping robot 10 enters the base station 20.

[0422] The base station 20 may further include: a steam tank 251 capable of containing water guided through the second piping; a heater 252 configured to heat the water contained in the steam tank; a water level sensor 253 configured to sense the water level in the steam tank; and a control unit 290 that operates the heater 252 based on a preset water level sensed by the water level sensor 253.

[0423] The base station 20 may include: a steam tank 251 capable of containing water guided through the second piping; a heater 252 equipped for heating the water contained in the steam tank; a temperature sensor 254 equipped for sensing the temperature inside the steam tank; and a control unit 290 that interrupts the operation of the heater 252 based on the temperature sensed by the temperature sensor 254 reaching a preset temperature.

[0424] The base station 20 can control the steam generating device 250 to perform a steam generating operation based on the completion of the cleaning operation of the wet cloth 160 in the cleaning chamber 230 or by receiving a steam operation signal from at least one of the sweeping robot or the user equipment.

[0425] The base station 20 can send a steam start signal to the sweeping robot 10 based on the fact that the steam generation operation has started.

[0426] The robotic vacuum cleaner 10 can rotate the wet mop 160 based on the steam start signal received from the base station 20.

[0427] The robotic vacuum cleaner 10 can move the wet cloth 160 to a predetermined height based on receiving the steam start signal from the base station 20.

[0428] A control method for a sweeping robot according to one embodiment may include the following steps: returning to a base station in response to meeting a base station return condition; and rotating a wet mop 160 in response to receiving a steam start signal from the base station 20.

[0429] The control method of the sweeping robot may further include the following steps: in response to receiving the steam start signal from the base station 20, moving the wet mop 160 to a predetermined position before rotating the wet mop 160.

[0430] The control method of the sweeping robot may further include the following steps: stopping the rotation of the wet mop 160 in response to receiving a steam end signal from the base station 20 during the rotation of the wet mop 160.

[0431] The control method of the sweeping robot may further include the following steps: after stopping the rotation of the wet mop 160, the wet mop 160 is rotated in response to receiving a drying start signal from the base station 20.

[0432] According to one embodiment of this disclosure, the cleaning device may include: a sweeping robot 10, including a main body 110 having a lower portion capable of detachably mounting a wet mop 160; and a base station 20 capable of placing the sweeping robot 10, wherein the base station may include: a water tank 221 configured to store water; a cleaning chamber 230 configured to allow the wet mop to be cleaned in the cleaning chamber during the period when the sweeping robot is placed in the base station and the wet mop is mounted on the lower portion of the main body; a steam generating device 250 for generating steam using water stored in the water tank; a pump 21 configured to pump water stored in the water tank to the outside of the water tank; a first piping 204 configured to guide water pumped by the pump to the outside of the water tank to the cleaning chamber 230; and a second piping 205 configured to guide water pumped by the pump to the outside of the water tank to the steam generating device 250.

[0433] According to one embodiment of this disclosure, the base station 20 may include: a valve 24 connected to the first piping 204 and the second piping 205; and a third piping 203 located between the pump 21 and the valve 24, and configured to guide water pumped by the pump to the outside of the water supply tank to the valve. The valve 24 may be configured to deliver water pumped by the pump to the outside of the water supply tank from the third piping 203 to the first piping 204, or to deliver water pumped by the pump to the outside of the water supply tank from the third piping 203 to the second piping 205.

[0434] According to one embodiment of this disclosure, the valve may be a first valve 24. The base station may include: a fourth piping 207 configured to guide water pumped by the pump to the outside of the water supply tank to the sweeping robot when the sweeping robot is placed on the base station; a second valve 23 connected to the third piping 203 and the fourth piping 207; and a fifth piping 202 connecting the pump 21 and the second valve 23. The second valve 23 may be configured to transport water pumped by the pump to the outside of the water supply tank from the fifth piping 202 to the third piping 203, or to transport water pumped by the pump to the outside of the water supply tank from the fifth piping 202 to the fourth piping 207.

[0435] According to one embodiment of the present disclosure, the base station may include: a third piping 206, configured to guide steam generated in the steam generating device 250 to the cleaning chamber 230, and including a first end 206a communicating with the steam generating device and a second end 206b communicating with the cleaning chamber.

[0436] According to one embodiment of this disclosure, the base station may include a cleaning frame 240, detachably mounted to the cleaning chamber, and including a steam jet nozzle 243. During the period when the cleaning frame is mounted to the cleaning chamber, the robotic vacuum cleaner is placed on the base station, and the wet cloth is mounted on the lower part of the main body, the cleaning frame 240 may be configured to rub against the wet cloth, and the steam jet nozzle 243 may be configured to spray steam guided into the cleaning chamber through the third piping 206 toward the wet cloth.

[0437] According to one embodiment of this disclosure, the second piping 205 may be connected to the lower part of the steam generating device 250. The third piping 206 may be connected to the upper part of the steam generating device 250.

[0438] According to one embodiment of this disclosure, the steam generating device 250 may be arranged below the water supply tank 221. The third piping 206 may include a bend 2061 located at the height between the steam generating device and the water supply tank.

[0439] According to one embodiment of this disclosure, during the period when the sweeping robot is placed on the base station and the wet cloth is installed on the lower part of the body, at least a portion of the steam jet 243 may be arranged below the lower surface of the wet cloth 160.

[0440] According to one embodiment of this disclosure, the second end 206b of the third pipe 206 may be configured to be larger than the size of the steam injection port 243.

[0441] According to one embodiment of this disclosure, the bottom 230a of the cleaning chamber 230 may tilt downwards along the direction in which the sweeping robot enters the base station.

[0442] According to one embodiment of the present disclosure, the base station may include: a steam tank 251 capable of containing water guided through the second piping; a heater 252 configured to heat the water contained in the steam tank; a water level sensor 253 configured to sense the water level in the steam tank; and a control unit 290 that operates the heater based on a preset water level sensed by the water level sensor.

[0443] According to one embodiment of the present disclosure, the base station may include: a steam tank 251 capable of containing water guided through the second piping; a heater 252 configured to heat the water contained in the steam tank; a temperature sensor 254 configured to sense the temperature inside the steam tank; and a control unit 290 that interrupts the heater based on the temperature sensed by the temperature sensor reaching a preset temperature.

[0444] According to one embodiment of this disclosure, during the period when the sweeping robot is placed on the base station and the wet cloth is installed on the lower part of the main body, the base station 20 may be configured to control the steam generating device 250 to perform a steam generating operation based on the completion of a cleaning operation of cleaning the wet cloth in the cleaning chamber or receiving a steam operation signal from at least one of the sweeping robot or the user equipment.

[0445] According to one embodiment of the present disclosure, the base station 20 may be configured to send a steam start signal to the sweeping robot 10 based on the start of the steam generation operation.

[0446] According to one embodiment of the present disclosure, the robotic vacuum cleaner 10 may be configured to rotate the wet mop 160 based on receiving the steam start signal from the base station.

[0447] The concept of this disclosure can improve the ease of use of cleaning devices.

[0448] According to the concept of this disclosure, the cleaning efficiency of the cleaning device can be improved.

[0449] According to the concept disclosed herein, the base station can spray steam toward the wet mop of a robotic vacuum cleaner placed at the base station. Therefore, the wet mop can be sterilized and kept clean by the steam.

[0450] The effects achievable by this disclosure are not limited to those mentioned above. Those skilled in the art to which this disclosure pertains can clearly understand other effects not mentioned above through the above description.

[0451] The above description and illustrations have provided specific embodiments. However, the invention is not limited to the above embodiments. Anyone skilled in the art can make various modifications and implementations without departing from the spirit of the technical concept of the invention as described in the claims.

Claims

1. A cleaning device, comprising: A robotic vacuum cleaner, comprising a main body with a detachably mounted lower section capable of holding a wet mop; as well as The base station is capable of housing the robotic vacuum cleaner. The base station includes: Water tank, equipped for storing water; The cleaning chamber is configured such that the wet cloth can be cleaned in the cleaning chamber while the robot vacuum is placed on the base station and the wet cloth is installed on the lower part of the main body. A steam generating device that uses water stored in the water supply tank to generate steam; A pump is provided to pump water stored in the water supply tank to the outside of the water supply tank. A first piping is configured to guide water pumped by the pump to the outside of the water supply tank into the cleaning chamber; and The second piping is configured to guide water pumped by the pump to the outside of the water supply tank to the steam generating device.

2. The cleaning device according to claim 1, wherein, The base station includes: Valve, connected to the first piping and the second piping; and A third piping, located between the pump and the valve, is configured to direct water pumped by the pump to the outside of the water supply tank to the valve. The valve is configured to either pump water, which is pumped to the outside of the water supply tank by the pump, from the third piping to the first piping, or pump water, which is pumped to the outside of the water supply tank by the pump, from the third piping to the second piping.

3. The cleaning device according to claim 2, wherein, The valve in question is the first valve. The base station includes: The fourth piping is configured to guide water pumped to the outside of the water supply tank by the pump to the sweeping robot when the sweeping robot is placed at the base station. The second valve is connected to the third and fourth piping; and The fifth piping connects the pump to the second valve. The second valve is configured to either transport water pumped to the outside of the water supply tank by the pump from the fifth piping to the third piping, or transport water pumped to the outside of the water supply tank by the pump from the fifth piping to the fourth piping.

4. The cleaning device according to claim 1, wherein, The base station includes: A third piping is provided for guiding steam generated in the steam generating device to the cleaning chamber, and includes a first end communicating with the steam generating device and a second end communicating with the cleaning chamber.

5. The cleaning device according to claim 4, wherein, The base station includes: The cleaning frame, detachably mounted to the cleaning chamber, includes a steam injection port. During the period when the cleaning frame is installed in the cleaning chamber, the sweeping robot is placed in the base station, and the wet cloth is installed at the lower part of the main body, The cleaning frame is configured to rub against the wet cloth. The steam jet nozzle is configured to spray steam, which is guided to the cleaning chamber through the third piping, toward the wet cloth.

6. The cleaning apparatus according to claim 4, wherein, The second piping is connected to the lower part of the steam generating device. The third piping is connected to the upper part of the steam generating device.

7. The cleaning apparatus according to claim 4, wherein, The steam generating device is arranged below the water supply tank. The third piping includes: The curved section is located at the height between the steam generating device and the water supply tank.

8. The cleaning apparatus according to claim 5, wherein, During the period when the sweeping robot is placed on the base station and the wet cloth is installed on the lower part of the main body, at least a portion of the steam jet is arranged below the lower surface of the wet cloth.

9. The cleaning apparatus according to claim 5, wherein, The second end of the third pipe is configured to be larger than the size of the steam injection port.

10. The cleaning apparatus according to claim 1, wherein, The bottom of the cleaning chamber is designed to slope downwards along the direction in which the sweeping robot enters the base station.

11. The cleaning apparatus according to claim 1, wherein, The base station includes: A steam tank capable of containing water guided through the second piping; A heater is provided for heating the water contained in the steam tank; A water level sensor is provided to sense the water level inside the steam tank; and The control unit operates the heater based on a preset water level sensed by the water level sensor.

12. The cleaning apparatus according to claim 1, wherein, The base station includes: A steam tank capable of containing water guided through the second piping; A heater is provided for heating the water contained in the steam tank; A temperature sensor is provided to sense the temperature inside the steam tank; and The control unit shuts down the heater based on the temperature sensed by the temperature sensor reaching a preset temperature.

13. The cleaning apparatus according to claim 1, wherein, During the period when the sweeping robot is placed on the base station and the wet mop is installed on the lower part of the main body, The base station controls the steam generating device to perform a steam generating operation based on the completion of a cleaning operation of washing the wet cloth in the cleaning chamber or by receiving a steam operation signal from at least one of the sweeping robot or the user equipment.

14. The cleaning apparatus according to claim 13, wherein, The base station sends a steam start signal to the sweeping robot based on the start of the steam generation operation.

15. The cleaning apparatus according to claim 14, wherein, The robotic vacuum cleaner rotates the wet cloth based on the steam start signal received from the base station.

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