Cleaning robot having water tank

Abstract

A cleaning robot is disclosed. The cleaning robot, according to an embodiment of the present invention, comprises a main body, a water tank, a water treatment filter, and a heater. The heater heats water that has passed through the water treatment filter. The cleaning robot, according to an embodiment of the present invention, is configured such that water stored in the water tank selectively passes through the water treatment filter and the heater. The cleaning robot provided according to an embodiment of the present invention can prevent scale formation while minimizing the use of the water treatment filter, by passing water through the water treatment filter and heater for hot water or steam, but not for general water cleaning.

Description

Robot vacuum cleaner with water tank

[0001] The present invention relates to a robot vacuum cleaner, and more particularly, to a robot vacuum cleaner equipped with a water tank for storing water used for cleaning.

[0002] A robot vacuum cleaner, which includes a motor, various sensors, and artificial intelligence (AI), can be configured to move around and clean the area that needs cleaning on its own.

[0003] A robot vacuum cleaner can be configured to suck up dust, sweep up dust, or wipe the cleaning surface using a mop.

[0004] Some robot vacuum cleaners are equipped with a water tank, and some robot vacuum cleaners are used to perform mopping using the water stored in the water tank.

[0005] PCT Publication WO2008 / 007830A1 (publication date: January 17, 2008) (hereinafter, “prior document”) discloses a steam robot cleaner, and describes that steam is generated by a heater and then the steam is sprayed onto a mop to remove contaminants.

[0006] However, the robot cleaner disclosed in the above prior art document does not take into account problems that may arise from heating water for the use of steam, and thus requires improvement.

[0007] The problem to be solved by the present invention is to provide a robot cleaner that includes a filter that can prevent the formation of scale when using water stored in a water tank of the robot cleaner to form hot water or steam, and can prevent unnecessary use of the filter, thereby maximizing the lifespan of the filter.

[0008] The problem to be solved by the present invention is to provide a robot cleaner that can optimize the path of water bypassing the filter and the path of water passing through the filter, while providing a filter capable of preventing the occurrence of scale in the robot cleaner.

[0009] The problem to be solved by the present invention is to provide a robot cleaner in which a filter capable of preventing the occurrence of scale is provided in the robot cleaner, and in which the additional space required by providing the filter is minimized while filtering (softening) raw water by the filter is effectively performed.

[0010] The problem to be solved by the present invention is to provide a robot cleaner that can efficiently use unheated water and hot water or steam by providing a filter that can prevent the occurrence of scale in the robot cleaner.

[0011] A robot vacuum cleaner according to one embodiment of the present invention comprises a main body, a water tank, a water treatment filter, and a heater.

[0012] The above water tank is provided in the main body and is configured to store water.

[0013] The above water treatment filter is provided in the main body.

[0014] The above heater is provided in the main body and is configured to heat water that has passed through the water treatment filter.

[0015] A robot cleaner according to an embodiment of the present invention is configured such that water stored in the water tank selectively passes through the water treatment filter and the heater.

[0016] The water tank may be internally partitioned so that some of the water bypasses the water treatment filter and other parts of the water pass through the water treatment filter.

[0017] The above water tank may comprise a first chamber and a second chamber.

[0018] The first chamber and the second chamber are distinct from each other.

[0019] A robot cleaner according to an embodiment of the present invention may be configured such that at least a portion of the water in the first chamber does not pass through the water treatment filter, and at least a portion of the water in the second chamber passes through the water treatment filter.

[0020] The above water treatment filter may be provided inside the second chamber.

[0021] The second chamber may be provided below the first chamber.

[0022] The above water tank may include a water tank housing, a splitter, and a water tank cover.

[0023] The water tank housing may be formed in the form of a container that forms the space of the first chamber and the second chamber.

[0024] The splitter is detachably provided inside the water tank housing to partition the first chamber and the second chamber. The splitter includes a plurality of through holes extending vertically.

[0025] The above water tank cover shields the water tank housing from the upper side of the splitter.

[0026] The above water tank may comprise a first pipe.

[0027] The above first pipe is connected to the above first chamber.

[0028] A robot cleaner according to an embodiment of the present invention may be configured to selectively direct the water in the first chamber and the first pipe when the water moves in the direction of gravity.

[0029] The above water tank may comprise a second pipe.

[0030] The above second pipe is connected to the above second chamber.

[0031] The first pipe may be placed at the bottom of the first chamber so as to be in communication with the first chamber.

[0032] The second pipe may be placed at the bottom of the second chamber so as to be in communication with the second chamber.

[0033] The outlet of the first pipe and the outlet of the second pipe may be arranged to face each other in the water tank.

[0034] The above heater is configured to heat water discharged through the second pipe.

[0035] The above robot vacuum cleaner may include a first euro, a second euro, a first pump, a second pump, and a control unit.

[0036] The above first euro is connected to the above first chamber.

[0037] The second euro is connected to the second chamber, the water treatment filter, and the heater.

[0038] The first pump is provided in the first flow path. The first pump is a water pump and causes water or fluid to move along the first flow path.

[0039] The second pump is provided in the second passage. The second pump is a water pump and causes water or fluid to move along the second passage.

[0040] The control unit is configured to control the operation of the first pump and the second pump. The control unit is configured to control each component provided in the robot cleaner.

[0041] The second pump may be positioned upstream of the heater.

[0042] The above water treatment filter may be formed by including at least one of an ion exchange resin, polyphosphate, and a hardness reduction catalyst.

[0043] The above water treatment filter can be configured to filter calcium or magnesium components from raw water.

[0044] The above robot vacuum cleaner may include a mop.

[0045] The above rag is provided on the lower side of the main body.

[0046] The robot cleaner according to an embodiment of the present invention may be configured such that water stored in the water tank is supplied toward the mop after selectively passing through the water treatment filter and the heater.

[0047] The above robot vacuum cleaner may include a mop plate and an actuator.

[0048] The above map plate is rotatably connected to the lower side of the main body.

[0049] The above actuator is provided in the main body and is configured to rotate the map plate.

[0050] The above mop is attached to the lower side of the above mop plate.

[0051] The above robot vacuum cleaner may include a first mop, a second mop, a first euro, and a second euro.

[0052] The above first mop and the above second mop are provided on the lower side of the main body.

[0053] The first flow path may be connected to the water tank and configured to allow water to bypass the water treatment filter and the heater to flow, but may be configured to branch toward the first mop and the second mop.

[0054] The second flow path may be connected to the water tank and configured to allow water that has passed through the water treatment filter and the heater to move, but may be configured to branch toward the first mop and the second mop.

[0055] According to one embodiment of the present invention, a robot cleaner is provided with a mop, and may include: a main body forming a body of the robot cleaner; a water tank provided in the main body to store water, the water tank including a first chamber and a second chamber distinct from the first chamber; a water treatment filter provided in the main body to reduce mineral components in water; a heater provided in the main body to heat water that has passed through the water treatment filter; a first flow path connected to the first chamber and directed toward the mop; and a second flow path connected to the second chamber, the water treatment filter, and the heater and directed toward the mop.

[0056] The second chamber may be provided on the lower side of the first chamber, and the water treatment filter may be provided inside the second chamber.

[0057] As described above, a robot cleaner according to an embodiment of the present invention comprises a main body, a water tank, a water treatment filter, and a heater. Accordingly, when cleaning with hot water or steam, the water treatment filter can lower the hardness of the water and suppress the formation of scale, and the lifespan of the heater and the connected flow path (pipes, etc.) can be extended and excellent cleaning performance can be maintained. In addition, by allowing water (raw water) to selectively pass through the water treatment filter and heater, the raw water can be used as is or hot water or steam can be generated as needed, thereby improving cleaning performance. In addition, a robot cleaner can be provided that prevents unnecessary use of the water treatment filter and maximizes the service life of the water treatment filter.

[0058] A robot cleaner according to an embodiment of the present invention is configured to partition the inside of a water tank so that some water bypasses a water treatment filter and other water passes through the water treatment filter. In the robot cleaner according to an embodiment of the present invention, the water tank may include a first chamber and a second chamber, and at least a portion of the water in the first chamber may bypass the water treatment filter and at least a portion of the water in the second chamber may pass through the water treatment filter. Accordingly, a distinct flow path can be formed by utilizing the structure of the water tank itself, and the structure of the water tank can contribute to extending the life of the filter and efficient water cleaning.

[0059] In a robot vacuum cleaner according to an embodiment of the present invention, a water treatment filter may be installed within the second chamber. Accordingly, the additional space required to install the water treatment filter in the robot vacuum cleaner can be minimized, and the raw water can be effectively filtered by the water treatment filter.

[0060] In a water tank of a robot cleaner according to an embodiment of the present invention, a second chamber may be provided below the first chamber. Water (raw water) provided within the first chamber moves downward due to gravity. At this time, some of the water is discharged from the first chamber to the outside of the water tank and used as raw water, and the other part of the water moves to the second chamber and may be filtered by a water treatment filter. In this way, the water filled in the first chamber may be used as raw water or transformed into hot water or steam after passing through the water treatment filter, thereby achieving efficient water utilization.

[0061] In a robot vacuum cleaner according to an embodiment of the present invention, the water tank comprises a water tank housing, a splitter, and a water tank cover. Accordingly, the first chamber and the second chamber within the water tank are easily divided, and contact between the water within the second chamber and the water treatment filter is effectively achieved, resulting in excellent filtration, easy maintenance of the water treatment filter, and easy cleaning of the interior of the water tank.

[0062] A robot vacuum cleaner according to an embodiment of the present invention comprises a first flow path, a second flow path, a first pump, a second pump, and a control unit. The second pump is positioned upstream of the heater. Accordingly, by operating the first pump and / or the second pump, water flowing through the first flow path and / or the second flow path can be controlled, allowing for easy and efficient use as raw water or transformed into hot water or steam after passing through a water treatment filter, as needed.

[0063] A robot vacuum cleaner according to an embodiment of the present invention comprises a mop, a mop plate, and an actuator. Therefore, water passed through a water treatment filter and heater is delivered to the mop, effectively cleaning the surface to be cleaned. This provides excellent contamination removal performance during hot water or steam cleaning. Furthermore, the mop plate and actuator rotate the mop, expanding the cleaning range and enabling more efficient cleaning.

[0064] FIG. 1 is a perspective view illustrating a robot vacuum cleaner according to one embodiment of the present invention.

[0065] FIG. 2 is a side view illustrating a robot vacuum cleaner according to one embodiment of the present invention.

[0066] FIG. 3 is a plan view illustrating a robot vacuum cleaner according to one embodiment of the present invention.

[0067] FIG. 4 is a drawing schematically showing some components of a robot vacuum cleaner and the movement of water stored in a water tank according to one embodiment of the present invention.

[0068] FIG. 5 is a drawing showing the inside of a robot vacuum cleaner according to one embodiment of the present invention.

[0069] FIG. 6 is a drawing showing a configuration of a first flow path, a second flow path, and a connection between the first flow path and the second flow path in a robot vacuum cleaner according to one embodiment of the present invention.

[0070] Figure 7 is an exploded perspective view illustrating a water tank according to one embodiment of the present invention.

[0071] FIG. 8 is a plan view illustrating a water tank according to one embodiment of the present invention, and FIG. 9 is a side view illustrating a water tank according to one embodiment of the present invention.

[0072] Fig. 10 is a cross-sectional view illustrating a water tank according to one embodiment of the present invention.

[0073] Fig. 11 is a drawing showing the inside of a water tank according to one embodiment of the present invention.

[0074] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings to explain the present invention in more detail. Like reference numbers designate like components throughout the detailed description.

[0075] The X, Y, and Z directions shown in the drawing are each orthogonal to each other. The X direction can be understood as a direction facing forward, the Y direction can be understood as a direction facing left, and the Z direction can be understood as a direction facing upward.

[0076] FIG. 1 is a perspective view illustrating a robot vacuum cleaner (1) according to one embodiment of the present invention.

[0077] Fig. 2 is a side view illustrating a robot vacuum cleaner (1) according to one embodiment of the present invention.

[0078] Figure 3 is a plan view illustrating a robot vacuum cleaner (1) according to one embodiment of the present invention.

[0079] FIG. 4 is a drawing schematically showing some components of a robot vacuum cleaner (1) according to one embodiment of the present invention and the movement of water stored in a water tank (200).

[0080] The robot cleaner (1) according to an embodiment of the present invention is placed on a floor surface (B) and moves along the floor surface (B). The floor surface (B) may be a target for cleaning. Accordingly, the following description will be made with the up-down direction defined based on the state in which the robot cleaner (1) is placed on the floor surface (B) so that it can clean according to its intended purpose.

[0081] A robot cleaner (1) according to an embodiment of the present invention comprises a main body (100), a water tank (200), a water treatment filter (300), and a heater (400). A robot cleaner (1) according to an embodiment of the present invention comprises a first flow path (510) and a second flow path (520).

[0082] The main body (100) may form the overall exterior of the robot cleaner (1) or may be formed in the form of a frame. Each component of the robot cleaner (1) may be combined into the main body (100), and some components of the robot cleaner (1) may be accommodated inside the main body (100).

[0083] A robot vacuum cleaner (1) according to an embodiment of the present invention may include a bumper (110) to absorb external shock and / or detect contact with an external object. The bumper (110) may be coupled to the edge of the main body (100), and at this time, the bumper (110) may be configured to be movable relative to the main body. The bumper (110) may be coupled to the front edge of the main body (100).

[0084] A plurality of elastic bodies (not shown) may be provided between the bumper (110) and the main body (100), and the bumper (110) may be elastically supported by the elastic bodies against the main body (100). When the bumper (110) comes into contact with an external object and is pressed toward the main body (100), the elastic bodies are elastically deformed (compressed), and then the bumper (110) may be restored to its original position when the elastic bodies are elastically restored.

[0085] In an embodiment of the present invention, the main body (100) may be formed in a form in which the size (width or diameter) in the horizontal direction (direction parallel to X and Y) is larger than the size (height) in the vertical direction (direction parallel to Z). Such a main body (100) can help the robot cleaner (1) to have a stable structure and provide a structure that is advantageous in avoiding obstacles when the robot cleaner (1) moves (drives).

[0086] When viewed from above or below, the main body (100) can be formed in various shapes, such as circular, oval, or square.

[0087] Meanwhile, as described in the embodiment of the present invention, the robot cleaner (1) is composed of several parts and has a structural characteristic of a relatively flat structure, so reduction of the space occupied by the components (parts) of the robot cleaner (1) or efficient arrangement is considered as a very important factor in the design of the robot cleaner (1).

[0088] A robot cleaner (1) according to an embodiment of the present invention comprises a water tank (200) and a water treatment filter (300). In forming each structure and joint structure of the water tank (200) and the water treatment filter (300), the function of the water treatment filter (300) is effectively performed while minimizing the space occupied by the robot cleaner (1). Matters related to this will be described again below.

[0089] A robot vacuum cleaner (1) according to an embodiment of the present invention includes a water tank (200) in which water is stored, and is configured to discharge the water stored in the water tank (200) for use as needed.

[0090] The water in the water tank (200) can be used for cleaning by being supplied to the outside of the robot cleaner (1) by a pump (610, 620) or the like provided in the robot cleaner (1).

[0091] In a robot vacuum cleaner (1) according to an embodiment of the present invention, water from a water tank (200) can be supplied toward a mop (700, 710, 720), and accordingly, mop cleaning can be performed while the water wets the mop (700, 710, 720).

[0092] A water tank (200) can be provided inside the main body (100). The water tank (200) can be detachably connected to the main body (100).

[0093] In an embodiment of the present invention, water stored in a water tank (200) can be used as is (without filtering (softening) and heating) while being discharged to the outside, and / or can be heated and used in the form of hot water or steam.

[0094] The first flow path (510) is connected to the water tank (200) and forms a path for water to flow. The first flow path (510) may be formed in various forms, such as a pipe, tube, or duct. A portion of the water tank (200) may form the first flow path (510).

[0095] The first flow path (510) may extend from the water tank (200) toward the mop (700, 710, 720). The end portion (the portion where water is sprayed) of the first flow path (510) may be formed to a point adjacent to the mop (700, 710, 720), or may be formed to a point where it touches the mop (700, 710, 720). The end portion of the first flow path (510) may be located above the mop (700, 710, 720), and at least a portion of the water sprayed from the end portion of the first flow path (510) may be absorbed by the mop (700, 710, 720).

[0096] The second flow path (520) is connected to the water tank (200) and forms a path for water to flow. The second flow path (520) may be formed in various forms, such as a pipe, tube, or duct. A portion of the water tank (200) may form the second flow path (520).

[0097] The second flow path (520) may extend from the water tank (200) toward the mop (700, 710, 720). The end of the second flow path (520) (the portion where water is sprayed) may be formed to a point adjacent to the mop (700, 710, 720), or may be formed to a point where it touches the mop (700, 710, 720). The end of the second flow path (520) may be located above the mop (700, 710, 720), and at least a portion of the hot water or steam sprayed from the end of the second flow path (520) may be absorbed by the mop (700, 710, 720).

[0098] The water stored in the water tank (200) moves along the first flow path (510) and is discharged outside the water tank (200), and at this time, the water is used as is (without filtering or heating).

[0099] The water stored in the water tank (200) is discharged outside the water tank (200) while moving along the second flow path (520). At this time, the water is softened while passing through the water treatment filter (300), and can also be transformed into hot water or steam while passing through the heater (400).

[0100] A robot cleaner (1) according to an embodiment of the present invention may include a drive wheel (102). The drive wheel (102) is coupled to the main body (100) so as to rotate around a rotation axis in the left-right direction (parallel to Y). The robot cleaner (1) may be provided with two drive wheels (102), and the drive wheels (102) may be provided on the left and right sides of the main body (100), respectively. By the operation of the drive wheel (102), the robot cleaner (1) can move on the floor surface (B).

[0101] A robot vacuum cleaner (1) according to an embodiment of the present invention may include an auxiliary wheel (103). The auxiliary wheel (103) is coupled to the main body (100) so as to rotate around a horizontal rotation axis.

[0102] FIG. 5 is a drawing showing the internal appearance of a robot vacuum cleaner (1) according to one embodiment of the present invention.

[0103] FIG. 6 is a drawing showing a configuration of a first flow path (510), a second flow path (520), and a connection between the first flow path (510) and the second flow path (520) in a robot vacuum cleaner (1) according to one embodiment of the present invention.

[0104] In the robot vacuum cleaner (1) according to an embodiment of the present invention, the mop (700) can be divided into a first mop (710) and a second mop (720).

[0105] The mop (700, 710, 720) is provided on the lower side of the main body (100) and is configured to contact the floor surface. Accordingly, as the robot cleaner (1) moves, the mop (700, 710, 720) can clean the floor surface, thereby performing mopping.

[0106] A robot cleaner (1) according to an embodiment of the present invention may include a mop plate (730, 740). In the robot cleaner (1) according to an embodiment of the present invention, the mop plates (730, 740) and the mops (710, 720) may be provided as a pair, and at this time, one mop (710, 720) is coupled to one mop plate (730, 740). (A first mop (710) is coupled to (730), and a second mop (720) is coupled to a second mop plate (740).)

[0107] The map plate (730, 740) is coupled to the lower side of the main body (100) and is configured to rotate relative to the main body (100).

[0108] The map plate (730, 740) is formed to have a predetermined area and is formed in the form of a flat plate or a flat frame. The map plate (730, 740) is generally laid horizontally, and accordingly, the horizontal width (or diameter) is formed in a form sufficiently larger than the vertical height. The bottom surface of the map plate (730, 740) coupled to the main body (100) may be parallel to the bottom surface (B), or may be inclined with the bottom surface (B).

[0109] The map plate (730, 740) may be formed in a circular plate shape, and the bottom surface of the map plate (730, 740) may be generally circular.

[0110] In the map plate (730, 740), holes penetrating in the vertical direction can be repeatedly formed along the circumference.

[0111] The map plate (730, 740) can be formed in an overall rotationally symmetrical shape.

[0112] The rotation axis (730a, 730b) of the map plate (730, 740) is formed at the center of the map plate (730, 740). The rotation axis (730a, 730b) of the map plate (730, 740) may be formed along the vertical direction or may be formed generally along the vertical direction.

[0113] In the robot cleaner (1) according to an embodiment of the present invention, a pair of mop plates (730, 740) (a first mop plate (730) and a second mop plate (740)) may be formed identically to each other, or may be formed symmetrically with respect to a center line crossing the front and rear of the robot cleaner (1). If one mop plate (730) is positioned on the left side of the robot cleaner (1), the other mop plate (740) may be positioned on the right side of the robot cleaner (1), and in this case, the pair of mop plates (730, 740) may be symmetrical to each other.

[0114] The mop (710, 720) overlaps with the mop plate (730, 740) and is joined to the lower side of the mop plate (730, 740).

[0115] The mop (700, 710, 720) is formed so that the bottom surface facing the floor has a predetermined area, and the mop (700, 710, 720) is formed in a flat shape. The mop (700, 710, 720) is formed so that the horizontal width (or diameter) is sufficiently larger than the vertical height. The bottom surface of the mop (700, 710, 720) may be parallel to the floor surface (B), or may be inclined with the floor surface (B).

[0116] The bottom of the mop (700, 710, 720) may be generally circular. The mop (700, 710, 720) may be formed in an overall rotationally symmetrical shape. The mop (700, 710, 720) may be formed of various materials that can wipe the bottom surface (B) while coming into contact with the bottom surface (B). The bottom of the mop (700, 710, 720) may be formed of a cloth made of a woven or knitted fabric, a non-woven fabric, and / or a brush having a predetermined area.

[0117] In a robot vacuum cleaner (1) according to an embodiment of the present invention, a mop (710, 720) is detachably attached to the bottom surface of a mop plate (730, 740) and is coupled to the mop plate (730, 740) to rotate together with the mop plate (730, 740).

[0118] The mop (710, 720) can be attached to the mop plate (730, 740) using various devices and methods. In one embodiment, at least a portion of the mop (710, 720) can be connected to the mop plate (730, 740) by being caught, fitted, or the like. In another embodiment, a separate device, such as a clamp, may be provided to connect the mop (710, 720) and the mop plate (730, 740). In another embodiment, one end of a pair of fasteners that are coupled and decoupled from each other (specific examples of fasteners include a pair of magnets that are attracted to each other, a pair of Velcro that are coupled to each other, or a pair of buttons (a female button and a male button) that are coupled to each other) may be fixed to a mop (710, 720) and the other end may be fixed to a mop plate (730, 740).

[0119] When the mop (710, 720) is coupled to the mop plate (730, 740), the mop (710, 720) and the mop plate (730, 740) can be coupled in an overlapping manner, and the mop (710, 720) can be coupled to the mop plate (730, 740) so that the center of the mop (710, 720) is aligned with the center of the mop plate (730, 740).

[0120] As each mop plate (730, 740) to which the mop (710, 720) is combined rotates around each rotation axis (730a, 730b), mopping of the floor surface (B) is performed by the mop (710, 720).

[0121] A pair of mops (the first mop (710) and the second mop (720)) may be identical to each other. If one mop (710) is positioned on the left side of the robot cleaner (1), the other mop (720) may be positioned on the right side of the robot cleaner (1). In this case, the pair of mops (the first mop (710) and the second mop (720)) may be symmetrical to each other.

[0122] A robot vacuum cleaner (1) according to an embodiment of the present invention comprises a plurality of actuators (111, 112, 113), a suction port (104), a dust bin (105), a fan motor (106), and a battery (107).

[0123] Each actuator (111, 112, 113) may include a motor, a gear, and the like. The first actuator (111) may be configured to transmit rotational power to the first map plate (730) to rotate the first map plate (730). The second actuator (112) may be configured to transmit rotational power to the second map plate (740) to rotate the second map plate (740). The third actuator (113) may be configured to transmit rotational power to the drive wheel (102) to rotate the drive wheel (102).

[0124] By the operation of the fan motor (106), suction force is transmitted to the suction port (104), and thus dust may be drawn into the suction port (104).

[0125] The suction port (104) can be provided in an open form at the bottom of the robot cleaner (1), and dust on the bottom surface (B) moves into the inside of the robot cleaner (1) through the suction port (104), and this dust can be moved to and stored in a dust bin (105) provided inside the robot cleaner (1).

[0126] The battery (107) of the robot cleaner (1) supplies power to each component of the robot cleaner (1), such as the actuator (111, 112, 113), pump (610, 620), and fan motor (106).

[0127] As described above, the robot cleaner (1) according to one embodiment of the present invention includes a water tank (200), a water treatment filter (300), a heater (400), a first flow path (510), and a second flow path (520).

[0128] In addition, a robot vacuum cleaner (1) according to one embodiment of the present invention may include a first pump (610), a second pump (620), and a control unit (101).

[0129] According to an embodiment of the present invention, a water tank (200) may be configured so that the interior is partitioned and the path of water moving inside the water tank (200) is divided accordingly (see FIG. 4). In an embodiment of the present invention, when water stored inside the water tank (200) is discharged to the outside, the water treatment filter (300) may be bypassed or may pass through the water treatment filter (300).

[0130] The meaning of "bypass" described in the present invention can be understood as moving along a path (path) B that bypasses a specific object, rather than moving along a path (path) A that passes through a specific object. For example, "water bypasses a water treatment filter" can be understood to mean that water moves along a path other than the path that passes through the water treatment filter.

[0131] The water tank (200) may be formed by including a first chamber (201) and a second chamber (202) that are distinct from each other.

[0132] In an embodiment of the present invention, at least a portion of the water in the first chamber (201) bypasses the water treatment filter (300), and at least a portion of the water in the second chamber (202) passes through the water treatment filter (300).

[0133] In an embodiment of the present invention, at least a portion of the water in the first chamber (201) bypasses the water treatment filter (300) and the heater (400), and at least a portion of the water in the second chamber (202) passes through the water treatment filter (300) and the heater (400).

[0134] The first euro (510) is connected to the water tank (200) and forms a path through which water bypasses the water treatment filter (300) and heater (400).

[0135] The first euro (510) can be connected to the first chamber (201).

[0136] The second euro (520) is connected to the water tank (200) and forms a path through which water passes through the water treatment filter (300) and heater (400).

[0137] The second euro (520) can be connected to the second chamber (202), the water treatment filter (300), and the heater (400).

[0138] The first pump (610) is provided in the first flow path (510). The first pump (610) is configured as a water pump and receives power from a battery (107) to move water or fluid along the first flow path (510).

[0139] The second pump (620) is provided in the second flow path (520). The second pump (620) is composed of a water pump and receives power from a battery (107) to move water or fluid along the second flow path (520).

[0140] The control unit (101) is configured to control the operation of the first pump (610) and the second pump (620). The control unit (101) is configured to control the operation of the heater (400). The control unit (101) is configured to control each component provided in the robot cleaner (1).

[0141] When the first pump (610) is operated by the control unit (101), the water inside the water tank (200) moves along the first flow path (510) and can also be sprayed onto the mop (700, 710, 720).

[0142] When the second pump (620) is operated by the control unit (101), the water inside the water tank (200) moves along the second flow path (520), and also, when the heater (400) is operated by the control unit (101), the water is heated, and the heated water can be sprayed onto the mop (700, 710, 720).

[0143] The heater (400) is provided on one side of the main body (100) and is configured to heat water passing through the heater (400). The heater (400) can be coupled inside the main body (100).

[0144] In an embodiment of the present invention, the heater (400) may include a heater casing (410), a heater inlet (420), and a heater outlet (430). The heater casing (410) is configured to form a predetermined internal space and forms a part of the second flow path (520). A heat source for heating water is provided inside the heater casing (410). In an embodiment of the present invention, the heat source of the heater (400) may be a film heater. The heater inlet (420) forms an inlet of the heater casing (410), and the heater outlet (430) forms an outlet of the heater casing (410).

[0145] Water heated by the heater (400) can be transformed into a steam state. At this time, the heater (400) can function as a steam generator.

[0146] In a robot cleaner (1) according to an embodiment of the present invention, a water treatment filter (300) is placed upstream of a heater (400). Accordingly, as described below, scale can be effectively prevented from forming in the second flow path (520) and the heater (400).

[0147] In an embodiment of the present invention, the water treatment filter (300) may be provided inside the main body (100). In an embodiment of the present invention, the water treatment filter (300) may be provided inside the water tank (200).

[0148] A water treatment filter (300) according to an embodiment of the present invention is configured to reduce mineral components in water. The water treatment filter (300) is configured to filter hardness substances (such as calcium or magnesium components) from raw water. The water treatment filter (300) according to an embodiment of the present invention may be referred to as a water softener or a water purifier. The water treatment filter (300) can remove calcium or magnesium components from water stored inside a water tank.

[0149] The water treatment filter (300) may be formed of various materials and structures within a range capable of reducing mineral components in water. The water treatment filter (300) may be formed of various materials and structures within a range capable of removing hardness substances or scale-causing substances contained in raw water.

[0150] Hard substances can react at temperatures above or below room temperature to form scale. Scale, such as calcium carbonate (CaCO3), is a substance formed when minerals remaining in water clump together after the water evaporates.

[0151] It is necessary to prevent the formation of scale, as scale generated on the path through which water moves may cause a malfunction or deterioration in the performance of the robot cleaner (1).

[0152] If raw water from which hardness substances have not been removed is heated, the occurrence of scale increases further, so prevention of this is necessary.

[0153] To prevent such problems, a robot vacuum cleaner (1) according to an embodiment of the present invention includes a water treatment filter (300). The water treatment filter (300) may be configured in various ways to prevent scale formation.

[0154] A water treatment filter (300) according to the present invention may comprise one or more of an ion exchange resin, a polyphosphate, and a hardness reduction catalyst. In addition, the water treatment filter (300) may be formed in various ways to prevent scale formation.

[0155] The water treatment filter (300) may include a carbon filter.

[0156] Ion exchange resins can remove limescale, magnesium, iron, and heavy metals from water. Ion exchange resins reduce or suppress hardness components (such as calcium and magnesium) in water, preventing scale formation.

[0157] Polyphosphates release polyphosphoric acid into water, which can bind with calcium and magnesium ions in the water and prevent scale formation.

[0158] The hardness reduction catalyst may include calcium carbonate (CaCO3) or magnesium carbonate (MgCO3). The hardness reduction catalyst includes a silicate-based support, and calcium carbonate (CaCO3) or magnesium carbonate (MgCO3) may be formed on the surface of the support.

[0159] Carbon filters can remove impurities in water by utilizing the adsorption power of activated carbon.

[0160] In an embodiment of the present invention, the second pump (620) may be positioned downstream of the water treatment filter (300). Accordingly, water present in the second flow path (520) may be softened by the water treatment filter (300) even before the operation of the second pump (620), and may be heated by being supplied to the heater (400) immediately after the operation of the second pump (620).

[0161] In an embodiment of the present invention, the second pump (620) may be positioned upstream of the heater (400). Accordingly, water existing in the second passage (520) before the operation of the second pump (620) does not pass through the heater (400), but may be heated while passing through the heater (400) after the operation of the second pump (620). Unlike the embodiment of the present invention, when the second pump (620) is positioned downstream of the heater (400), water that has already passed the heater (400) when the second pump (620) is operated and has not been heated by the heater (400) may be discharged toward the mop (700, 710, 720).

[0162] When the robot vacuum cleaner (1) is equipped with a first mop (710) and a second mop (720), the first flow path (510) may be configured to branch toward the first mop (710) and the second mop (720). In addition, the second flow path (520) may be configured to branch toward the first mop (710) and the second mop (720).

[0163] As described above, the robot cleaner (1) according to the embodiment of the present invention comprises a water tank (200), a water treatment filter (300), and a heater (400), and when cleaning with hot water or steam, the hardness of water can be lowered and scale formation can be suppressed by the water treatment filter (300), and the lifespan of the heater (400) and the second flow path (520) connected thereto can be extended and cleaning performance can be maintained.

[0164] In addition, by allowing water (raw water) to optionally pass through the water treatment filter (300) and heater (400), the raw water can be used as is or by generating hot water or steam and using it, as needed. That is, when the use of raw water is appropriate, the raw water can be discharged through the first flow path (510) and used, and when the use of hot water or steam is necessary, the raw water can be discharged through the second flow path (520). Accordingly, the cleaning performance of the robot cleaner (1) is improved, unnecessary use of the water treatment filter (300) and heater (400) can be prevented, and the service life of the water treatment filter (300) and heater (400) can be maximized.

[0165] In addition, the inside of the water tank (200) is partitioned so that some of the water in the first chamber (201) bypasses the water treatment filter (300) and some of the water in the second chamber (202) passes through the water treatment filter (300). Accordingly, a distinct flow path can be formed by utilizing the structure of the water tank (200) itself, and the structure of the water tank (200) can contribute to extending the life of the filter and efficient water cleaning.

[0166] Figure 7 is an exploded perspective view showing a water tank (200) according to one embodiment of the present invention.

[0167] FIG. 8 is a plan view illustrating a water tank (200) according to one embodiment of the present invention, and FIG. 9 is a side view illustrating a water tank (200) according to one embodiment of the present invention.

[0168] Fig. 10 is a cross-sectional view illustrating a water tank (200) according to one embodiment of the present invention.

[0169] FIG. 11 is a drawing showing the inside of a water tank (200) according to one embodiment of the present invention.

[0170] A water tank (200) according to an embodiment of the present invention comprises a first chamber (201) and a second chamber (202), wherein the first chamber (201) and the second chamber (202) are separated from each other. The volume of the first chamber (201) may be larger than the volume of the second chamber (202).

[0171] As described above, at least a portion of the water in the first chamber (201) may be configured to bypass the water treatment filter (300), and at least a portion of the water in the second chamber (202) may be configured to pass through the water treatment filter (300). To this end, in the water tank (200) according to the embodiment of the present invention, the second chamber (202) may be provided below the first chamber (201).

[0172] And the water treatment filter (300) can be provided inside the second chamber (202).

[0173] Specifically, the water tank (200) may include a water tank housing (210), a splitter (220), and a water tank cover (230).

[0174] The water tank housing (210) can be formed in the form of a container that forms the space of the first chamber (201) and the second chamber (202).

[0175] The splitter (220) forms a boundary between the first chamber (201) and the second chamber (202). Therefore, when the splitter (220) is not coupled to the water tank housing (210), the first chamber (201) and the second chamber (202) may not be distinguished.

[0176] The splitter (220) is formed in a generally flat plate shape along the horizontal direction. The splitter (220) includes a plurality of through holes (221) extending vertically. The plurality of through holes (221) may be formed over the entire area of ​​the splitter (220).

[0177] The outer edge of the splitter (220) corresponds to the inner edge of the water tank housing (210). Therefore, when the splitter (220) is coupled to the water tank housing (210), the entire outer edge of the splitter (220) can be in close contact with the inner surface of the water tank housing (210). When the splitter (220) is coupled to the water tank housing (210), water can move through the through hole (221) of the splitter (220).

[0178] A mounting protrusion (211) on which the edge of the splitter (220) is mounted can be formed on the inner surface of the water tank housing (210).

[0179] The splitter (220) is detachably provided inside the water tank housing (210), and when the splitter (220) is coupled inside the water tank housing (210), the first chamber (201) and the second chamber (202) are partitioned by the splitter (220).

[0180] The water tank cover (230) shields the water tank housing (210) from the upper side of the splitter (220).

[0181] The water tank (200) may include a first pipe (203). The first pipe (203) may be formed in a shape that protrudes upward from the inner bottom of the water tank housing (210). The upper end of the first pipe (203) may be located at approximately the middle point of the water tank housing (210) in the vertical direction.

[0182] The first pipe (203) is connected to the first chamber (201). The upper end of the first pipe (203) (the inlet (203a) of the first pipe (203)) may be provided at a point adjacent to the lower end of the first chamber (201). The lower end of the first pipe (203) (the outlet (203b) of the first pipe (203)) may extend so as to protrude outward from the water tank housing (210).

[0183] The first pipe (203) may be formed integrally with the water tank housing (210). The first pipe (203) forms a part of the first flow path (510).

[0184] The water tank (200) may include a second pipe (204). The second pipe (204) is connected to the second chamber (202). One end of the second pipe (204) (the inlet (204a) of the second pipe (204)) may be provided adjacent to the lower end of the second chamber (202), and the other end of the second pipe (204) (the outlet (204b) of the second pipe (204)) may extend to the outside of the water tank housing (210).

[0185] The second pipe (204) may be formed integrally with the water tank housing (210). The second pipe (204) forms part of the second flow path (520).

[0186] In a robot vacuum cleaner (1) according to an embodiment of the present invention, the first pipe (203) and the splitter (220) can be coupled to each other.

[0187] A joint hole (222) extending vertically may be formed in the splitter (220). The joint hole (222) may have a larger diameter than the through hole.

[0188] The upper end of the first pipe (203) (the inlet of the first pipe (203)) can be configured to fit snugly into the joint hole (222) of the splitter (220).

[0189] When the splitter (220) is seated on the mounting bracket (211) inside the water tank housing (210), the upper end of the first pipe (203) is fitted into the joining hole (222) of the splitter (220), and accordingly, the first chamber (201) and the second chamber (202) are partitioned, and the first flow path (510) and the second flow path (520) can be distinguished.

[0190] When the water treatment filter (300) is provided inside the second chamber (202), the water treatment filter (300) can be supported by the water tank housing (210) and the splitter (220), and accordingly, a separate casing or the like forming the exterior of the water treatment filter (300) is not required, and the water treatment filter (300) can be stably supported.

[0191] And the water treatment filter (300) provided in the second chamber (202) is in sufficient contact with the water inside the second chamber (202) from various directions so that filtering by the water treatment filter (300) can be effectively performed.

[0192] The movement of water inside the water tank (200) as described above is described as follows.

[0193] When raw water is filled inside the water tank (200), the raw water fills the inside of the first chamber (201) and the second chamber (202).

[0194] When the first pump (610) is operated without the second pump (620) being operated by the control unit (101), the water in the first chamber (201) flows into the upper end (inlet (203a)) of the first pipe (203) and moves through the first pipe (203), and at this time, the water inside the second chamber (202) can be maintained substantially without movement. That is, the water inside the first chamber (201) moves along the first flow path (510).

[0195] Conversely, when the second pump (620) operates without the first pump (610) operating, the water in the first chamber (201) moves to the second chamber (202) through the through-hole of the splitter (220), and the water in the second chamber (202) moves along the second flow path (520) while being discharged through the second pipe (204), and at this time, the water in the first pipe (203) can be maintained substantially without movement. That is, the water inside the first chamber (201) moves along the second flow path (520).

[0196] In this way, in the robot cleaner (1) according to the embodiment of the present invention, when the water in the first chamber (201) moves in the direction of gravity, it can be made to selectively direct it toward the second chamber (202) and the first pipe (203).

[0197] In addition, in the robot cleaner (1) according to the embodiment of the present invention, depending on the operation of the first pump (610) or the second pump (620), water stored in the water tank (200) can be supplied toward the mop (700, 710, 720) after selectively passing through the water treatment filter (300) and the heater (400).

[0198] As described above, in the robot cleaner (1) according to the embodiment of the present invention, the water treatment filter (300) can be provided inside the second chamber (202), and accordingly, the additional space required to provide the water treatment filter (300) in the robot cleaner (1) can be minimized, and the filtering of raw water by the water treatment filter (300) can be effectively performed.

[0199] In addition, according to an embodiment of the present invention, the water filled in the first chamber (201) can be used as raw water or transformed into hot water or steam after passing through a water treatment filter (300), thereby achieving efficient use of water.

[0200] In addition, in the robot cleaner (1) according to the embodiment of the present invention, the water tank (200) includes a water tank housing (210), a splitter (220), and a water tank cover (230), so that water softening treatment by the water treatment filter (300) is excellently performed, and maintenance of the water treatment filter (300) is easy.

[0201] In addition, by operating the first pump (610) and / or the second pump (620), the water moving through the first flow path (510) and / or the second flow path (520) can be easily and efficiently controlled to be used as raw water or transformed into hot water or steam after passing through a water treatment filter (300) as needed.

[0202] While specific embodiments of the present invention have been described and illustrated above, it will be understood that the present invention is not limited to the described embodiments, and that those skilled in the art will readily appreciate that various modifications and variations may be made to other specific embodiments without departing from the spirit and scope of the present invention. Accordingly, the scope of the present invention should not be defined by the described embodiments, but rather by the technical concepts set forth in the claims.

[0203] The robot cleaner according to an embodiment of the present invention has remarkable industrial applicability in that it is configured to prevent the occurrence of scale while minimizing the use of a water treatment filter.

Claims

1. Main body; A water tank provided in the main body and configured to store water; A water treatment filter provided in the above main body; and A heater provided in the main body and configured to heat water that has passed through the water treatment filter; A first flow path connected to the water tank; and A second passage that is distinct from the first passage and is connected to the water tank, the water treatment filter, and the heater. Robot vacuum cleaner.

2. In paragraph 1, The water tank is internally partitioned so that some of the water bypasses the water treatment filter and other water passes through the water treatment filter. Robot vacuum cleaner.

3. In paragraph 1, The above water bottle, Chamber 1; and A second chamber distinct from the first chamber; At least a portion of the water in the first chamber does not pass through the water treatment filter, and at least a portion of the water in the second chamber passes through the water treatment filter. Robot vacuum cleaner.

4. In paragraph 3, The above water treatment filter is provided inside the second chamber. Robot vacuum cleaner.

5. In paragraph 3, The second chamber is provided on the lower side of the first chamber, Robot vacuum cleaner.

6. In paragraph 3, The above water bottle, A water tank housing forming the space of the first chamber and the second chamber; A splitter detachably provided inside the water tank housing to divide the first chamber and the second chamber, and having a plurality of through holes formed therein extending vertically; and A water tank cover that shields the water tank housing on the upper side of the splitter; Robot vacuum cleaner.

7. In paragraph 3, The above water bottle, Including a first pipe connected to the first chamber, When the water in the first chamber moves in the direction of gravity, it is selectively directed toward the second chamber and the first pipe. Robot vacuum cleaner.

8. In paragraph 3, The above water bottle, a first pipe connected to the first chamber; and a second pipe connected to the second chamber; The above robot vacuum cleaner, The first flow path connected to the first pipe; The second flow path connected to the second pipe and connected to the heater; and Including a mop provided on the lower side of the main body; The water passing through the heater is supplied to the mop. Robot vacuum cleaner.

9. In paragraph 3, The above water bottle, A first pipe disposed at the lower portion of the first chamber so as to communicate with the first chamber; and A second pipe is disposed at the lower portion of the second chamber so as to be in communication with the second chamber; The outlet of the first pipe and the outlet of the second pipe are arranged opposite each other in the water tank. Robot vacuum cleaner.

10. In paragraph 3, The above robot vacuum cleaner, The first urea connected to the first chamber; The second passage connected to the second chamber, the water treatment filter and the heater; A first pump provided in the first euro; A second pump provided in the second euro; and A control unit configured to control the operation of the first pump and the second pump; Robot vacuum cleaner.

11. In paragraph 10, The second pump is positioned upstream of the heater, Robot vacuum cleaner.

12. In any one of paragraphs 1 to 11, The above water treatment filter comprises at least one of an ion exchange resin, polyphosphate, and a hardness reduction catalyst.

13. In any one of paragraphs 1 to 11, The above water treatment filter is configured to filter calcium or magnesium components from raw water. Robot vacuum cleaner.

14. In any one of paragraphs 1 to 11, The above robot vacuum cleaner, Including a mop provided on the lower side of the main body, The water stored in the water tank is supplied toward the mop after selectively passing through the water treatment filter and the heater. Robot vacuum cleaner.

15. In paragraph 14, The above robot vacuum cleaner, A map plate rotatably connected to the lower side of the main body; and An actuator provided in the main body and configured to rotate the map plate; The above mop is attached to the lower side of the above mop plate, Robot vacuum cleaner.

16. In paragraph 1, The above robot vacuum cleaner, A first mop and a second mop provided on the lower side of the main body; The first flow path is connected to the water tank and is configured to allow water to bypass the water treatment filter and the heater, and branches toward the first mop and the second mop; and The second channel is connected to the water tank and is configured to allow water that has passed through the water treatment filter and the heater to move, and is branched toward the first mop and the second mop; Robot vacuum cleaner.

17. As a robot vacuum cleaner equipped with a mop, The main body forming the body of the above robot vacuum cleaner; A water tank provided in the main body to store water, comprising a first chamber and a second chamber distinct from the first chamber; A water treatment filter provided in the main body and configured to reduce mineral components in water; A heater provided in the main body and configured to heat water that has passed through the water treatment filter; The first flow path connected to the first chamber and directed toward the mop; and including the second channel connected to the second chamber, the water treatment filter and the heater and directed toward the mop; Robot vacuum cleaner.

18. In paragraph 17, The second chamber is provided on the lower side of the first chamber, The above water treatment filter is provided inside the second chamber. Robot vacuum cleaner.

19. Main body; A water tank provided in the main body to store water, comprising a first chamber, a second chamber distinct from the first chamber, a first pipe connected to the first chamber, and a second pipe connected to the second chamber; and A water treatment filter provided in the second chamber; including; Robot vacuum cleaner.

20. In paragraph 19, The above robot vacuum cleaner, A heater provided in the main body and configured to heat water discharged through the second pipe; Robot vacuum cleaner.

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