Damp cloth module of cleaner

Abstract

The present invention relates to a damp cloth module of a cleaner. The damp cloth module comprises: a module housing; a water tank storing water therein; at least one rotation cleaning unit to which a cloth can be coupled; a heating unit heating water supplied from the water tank; and a steam window coupled to the module housing to condense moisture discharged from the heating unit, to provide an effect of allowing a user to check, through the steam window, whether steam is generated.

Description

The vacuum cleaner's mop module

[0001] The present invention relates to a mop module of a vacuum cleaner, and more particularly, to a mop module of a vacuum cleaner that discharges high-temperature water or steam onto a mop to suck up or wipe away dust or foreign substances in an area to be cleaned.

[0002]

[0003] A vacuum cleaner is a device that cleans by sucking up dust or foreign substances in the area to be cleaned or wiping them away.

[0004] These vacuum cleaners can be divided into manual vacuum cleaners that perform cleaning while the user moves the vacuum cleaner, and automatic vacuum cleaners that perform cleaning while driving on their own.

[0005] Additionally, manual vacuum cleaners can be classified into canister type vacuum cleaners, upright type vacuum cleaners, handheld vacuum cleaners, and stick type vacuum cleaners, depending on the type of vacuum cleaner.

[0006] Floor cleaning methods can be broadly divided into dry and wet cleaning. Dry cleaning involves sweeping or sucking up dust, as in conventional vacuum cleaners. Wet cleaning involves wiping dust away with a mop.

[0007] Traditionally, dry vacuum cleaners were used for dry cleaning, and wet vacuum cleaners were used for wet cleaning. However, this method was inconvenient because two different types of vacuum cleaners had to be purchased to clean various types of floors. To solve the aforementioned problems, a method was studied that has a single main body, a dry cleaning module, and a wet cleaning module, such that for dry cleaning, the dry cleaning module is mounted on the main body, and for wet cleaning, the wet cleaning module (mop module) is mounted on the main body.

[0008] However, when wet cleaning, if foreign substances are stuck to the floor, the foreign substances may still remain even if you rotate the mop that has absorbed water and clean the floor.

[0009] Additionally, if microorganisms have grown on the floor, there is a limitation in that even if you rotate a mop that has absorbed water and clean the floor, it may not be possible to completely sterilize the microorganisms.

[0010] To solve this problem, one can consider a method of heating water through a heater and supplying high-temperature water or steam to the mop.

[0011] Here, the steam mop module includes a water tank that stores water, a heater that heats the water to generate steam, and a mop that receives water or steam and wipes the floor. It is preferable that each component be configured as a single assembly for easy replacement. For example, if the water tank or heater is placed on the main body, it is an unnecessary component during dry cleaning, and the weight of the water tank or heater makes cleaning difficult. Therefore, in terms of ease of cleaning, ease of module replacement, and space utilization, it is preferable that the water tank or heater be placed on the steam mop module rather than on the main body of the cleaner.

[0012] Korean Patent Publication No. KR2023-0017117A (2023.02.03) discloses a mop nozzle that heats water and emits steam onto a mop.

[0013] The above mop nozzle discharges steam to the mop through a diffuser.

[0014] At this time, the diffuser is positioned close to the mop, so the steam emitted from the diffuser can be absorbed by the mop without leaking outside the mop nozzle. This minimizes heat loss from the steam, enabling heat transfer to the mop, thereby improving cleaning performance.

[0015] However, if the steam does not leak out as described above, it may be difficult for the user to recognize whether steam has actually been discharged onto the mop.

[0016] In this case, the user may touch the mop without realizing that it has heated up, which may result in the user getting burned.

[0017] In addition, even though the steam is discharged and sufficient heat is supplied to the mop, the user may not be aware of this and control the machine to supply more steam, which may result in excessive power consumption.

[0018] Meanwhile, US registered patent US 9320405B2 (April 26, 2016) discloses a cleaning device equipped with a viewing window that can check the condensation of steam.

[0019] The above cleaning device is equipped with a water tank and a heating element in the main body of the cleaner, and a widely spread mop is equipped in the foot assembly facing the surface to be cleaned.

[0020] In this case, the cleaning device can only implement a water mop function, and has the limitation of not being able to perform various cleaning functions by replacing the module.

[0021] In addition, since the distance from the heating unit to the mop is far, there is a limit to the amount of heat loss that can occur during the process of the moisture heated in the heating unit flowing to the foot assembly.

[0022] In addition, there is a limit to the cleaning efficiency because steam cannot be supplied evenly to the entire mop due to limitations in the location and number of outlets discharged by the mop.

[0023] Meanwhile, Korean Patent No. KR0928162B1 (2009.11.17) discloses a nozzle of a vacuum cleaner having a steam discharge path formed to confirm the generation of steam.

[0024] The above-mentioned vacuum cleaner nozzle forms an auxiliary discharge hole in the steam discharge unit that discharges steam to the mop, thereby discharging a small amount of steam to the outside. This allows the user to check whether steam is being discharged.

[0025] However, the above-mentioned vacuum cleaner nozzle has a limitation in that it directly discharges a portion of the steam discharged to the mop, thereby reducing the amount of heat supplied to the mop and lowering energy efficiency.

[0026] In addition, since the emitted steam disappears into the air immediately, there is a limitation in that the user cannot clearly recognize whether steam is generated if he or she does not directly see the scene where steam is emitted.

[0027]

[0028] The present invention was created to improve the problems of the mop module of a conventional vacuum cleaner as described above, and its purpose is to provide a mop module of a vacuum cleaner that increases the sterilization and foreign substance removal effect by supplying high-temperature water or steam to a mop.

[0029] In addition, the purpose is to provide a mop module for a vacuum cleaner that can notify the user that steam has been generated.

[0030] In addition, the purpose is to provide a mop module for a vacuum cleaner that can immediately recognize the fact that steam is generated during cleaning even if the user does not take any special action.

[0031] In addition, the purpose is to provide a mop module for a vacuum cleaner that can minimize the loss of heat supplied to the mop while informing the user of the presence or absence of steam generation.

[0032] In addition, the purpose is to provide a mop module of a vacuum cleaner that can naturally dry steam that has condensed inside the mop module.

[0033]

[0034] In order to achieve the above-mentioned purpose, the mop module of the vacuum cleaner, which cleans the floor by wiping away foreign substances, allows the user to immediately confirm the generation of steam by having the steam sprayed from the heating unit condense in the steam window.

[0035] Specifically, a mop module according to one embodiment of the present invention is coupled to a module housing including a frame portion surrounding a bottom surface, and includes a steam window disposed in the frame portion, in which moisture discharged from a heating unit condenses.

[0036] Through this, it can be confirmed that steam is generated from the top of the mop module and condenses on the steam window.

[0037] In addition, in a mop module according to one embodiment of the present invention, a guide surface for guiding the movement of steam is formed on the bottom surface of the module housing.

[0038] At this time, a kind of flow path is formed between the rotating cleaner and the bottom of the module housing, which can guide the steam discharged from the diffuser to flow to the steam window.

[0039] Accordingly, steam is discharged from the steam outlet to supply moisture and heat to the mop, and can flow along the guide surface and enter the steam window while being diffused radially outward due to the centrifugal force caused by the rotation of the mop.

[0040] At this time, the distance from the center of rotation of the rotating cleaner to the steam outlet of the diffuser may be greater than the radius of the rotating cleaner.

[0041] Additionally, the distance from the center of rotation of the rotating cleaning unit to the steam inlet may be smaller than the radius of the mop.

[0042] Through this, steam can be directly discharged from the steam outlet to the mop, and steam from the mop can be introduced into the steam inlet path.

[0043] Meanwhile, the steam window may include a steam window body in which moisture discharged from the heating unit is condensed; and a ventilation hole formed in the steam window body and through which air containing moisture passes.

[0044] Meanwhile, a mop module according to one embodiment of the present invention may further include a steam window light that is disposed inside the module housing and irradiates light toward the steam window.

[0045] Through this, you can clearly see the moisture condensing in the steam window.

[0046] Meanwhile, a mop module according to another embodiment of the present invention further includes a diffuser having a steam outlet formed therein for supplying moisture heated in the heating unit to the mop; and the diffuser may include a steam transfer pipe branching from the steam outlet and guiding steam to the steam window.

[0047] Through this, the steam discharged from the steam outlet can be directly supplied to the steam window, and the user can quickly be notified that steam has been generated.

[0048] Meanwhile, the diffuser may further include a valve installed in the steam transfer pipe and opened when steam of a predetermined pressure or higher flows in.

[0049] In this case, steam can be supplied to the steam window when steam is first generated and the pressure of the steam increases momentarily.

[0050] This allows for high responsiveness by quickly sending steam to the steam window in the early stages of steam generation, and at the same time, only sending steam to the steam window in situations where the user must be aware of the generation of steam, and thereafter blocking the flow of steam to prevent steam loss.

[0051]

[0052] As described above, the mop module of the vacuum cleaner according to the present invention has the effect of increasing the sterilization and foreign substance removal effect by supplying high-temperature water or steam to the mop through the heater.

[0053] Additionally, when steam is generated, some of the generated steam condenses on the steam window, allowing the user to see the steam window to determine whether steam has been generated. Furthermore, the steam window allows the user to confirm whether steam is being generated, not only while steam is being generated, but also after steam has been generated.

[0054] In addition, by placing the steam window on the left and right rear sides of the module housing, it is possible to immediately notify the user who is cleaning while looking at the mop module from the rear of the mop module of the fact that steam is generated.

[0055] In addition, the steam inlet path that guides steam to the steam window is positioned on the upper side of the rotating mop, and the steam inlet path is positioned further from the center of rotation of the mop than the steam outlet, so that the steam discharged to the mop can spread and consume heat, and then flow to the steam window.

[0056] Therefore, there is an effect that can prevent the loss of heat supplied to the mop to confirm the generation of steam.

[0057] In addition, a ventilation hole can be formed in the steam window to allow condensed moisture and steam to be naturally discharged to the outside, thereby having the effect of drying condensed moisture inside the cleaner module when there is no steam supply.

[0058] In addition, a separate steam transfer pipe is installed to supply steam to the steam window in the diffuser, and a valve is provided in the steam transfer pipe, so that steam is sent to the steam window only when steam supply to the steam window is required, and the flow of steam is blocked thereafter, thereby preventing heat loss.

[0059]

[0060] Figure 1 is a perspective view of a vacuum cleaner according to one embodiment of the present invention.

[0061] FIG. 2 is a perspective view illustrating a mop module in a vacuum cleaner according to one embodiment of the present invention.

[0062] Figure 3 is an exploded perspective view of Figure 2.

[0063] FIG. 4 is a perspective view of a mop module according to one embodiment of the present invention with the upper housing removed.

[0064] Figure 5 is a bottom view of Figure 4.

[0065] Figure 6 is a plan view of Figure 4.

[0066] Figure 7 is a cross-sectional view of a mop module according to one embodiment of the present invention.

[0067] Fig. 8 is a perspective view for explaining a heating unit in a mop module according to one embodiment of the present invention.

[0068] Figure 9 is an exploded perspective view illustrating a heating unit in a mop module according to one embodiment of the present invention.

[0069] FIG. 10 is a drawing for explaining the bottom surface of the module housing in a mop module according to one embodiment of the present invention.

[0070] FIG. 11 is a perspective view illustrating a rotating cleaning unit in a mop module according to one embodiment of the present invention.

[0071] FIG. 12 is a bottom view illustrating a state in which a mop is removed from a mop module according to one embodiment of the present invention.

[0072] Fig. 13 is a cross-sectional view illustrating a flow path of steam in a mop module according to one embodiment of the present invention.

[0073] Figure 14 is a partially enlarged view of Figure 12.

[0074] FIG. 15 is a cross-sectional view illustrating a diffuser in a mop module according to one embodiment of the present invention.

[0075]

[0076] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0077] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0078]

[0079] FIG. 1 illustrates a perspective view of a vacuum cleaner according to an embodiment of the present invention, FIGS. 2 and 3 illustrate a combined perspective view and an exploded perspective view for explaining a mop module according to an embodiment of the present invention, FIGS. 4 to 6 illustrate drawings showing a state in which an upper housing is removed from a mop module according to an embodiment of the present invention, FIG. 7 illustrates a cross-sectional view of a mop module according to an embodiment of the present invention, FIG. 8 illustrates a perspective view for explaining a heating unit in a mop module according to an embodiment of the present invention, FIG. 9 illustrates an exploded perspective view for explaining a heating unit in a mop module according to an embodiment of the present invention, and FIG. 10 illustrates a drawing for explaining a bottom surface of a module housing in a mop module according to an embodiment of the present invention.

[0080]

[0081] In this specification, “floor surface” may be understood to mean not only the floor surface of a living room or room, but also a surface to be cleaned made of various materials.

[0082] Referring to FIGS. 1 to 10, a cleaner (1) according to one embodiment of the present invention may include a cleaner body (400) having a suction motor for generating suction force, a mop module (100) connected to the cleaner body (400), for sucking air and foreign substances from a floor surface and for cleaning the floor surface by wiping it, and an extension pipe (300) connecting the cleaner body (400) and the mop module (100).

[0083]

[0084] A mop module (100) according to an embodiment of the present invention may include a module housing (110) and a connecting pipe (180) movably connected to the module housing (110).

[0085] The mop module (100) of this embodiment can be used by being connected to, for example, a handheld vacuum cleaner or a canister-type vacuum cleaner.

[0086] That is, the mop module (100) can be detachably connected to the vacuum cleaner body (400) or the extension pipe (300). As the mop module (100) is connected to the vacuum cleaner body (400) or the extension pipe (300), a user can clean the floor using the mop module (100). At this time, the vacuum cleaner body (400) to which the mop module (100) is connected can separate dust in the air using a multi-cyclone method.

[0087] The mop module (100) can be operated by receiving power from the vacuum cleaner body (400). Specifically, the mop module (100) can be operated by receiving power from a battery (not shown) provided in the vacuum cleaner body (400).

[0088] Since the vacuum cleaner body (400) to which the mop module (100) is connected includes a suction motor (not shown), the suction force generated by the suction motor (not shown) can be applied to the mop module (100).

[0089] Therefore, in this embodiment, the mop module (100) can perform the role of sucking in foreign substances and air from the floor surface and guiding them to the vacuum cleaner body (400).

[0090] The connecting pipe (180) is connected to the rear central portion of the module housing (110) and can guide the sucked air to the cleaner body (400), but is not limited thereto.

[0091] To help understanding, the direction of this embodiment is defined as follows: the part where the connecting pipe (180) is connected in the mop module (100) can be said to be the back (rear) of the mop module (100), and the opposite side of the part where the connecting pipe (180) is connected can be said to be the front (front) of the mop module (100). In addition, the direction connecting the front and rear can be called the front-back direction.

[0092] In addition, when looking at the suction port (113) from the connecting pipe (180), the left side may be referred to as the left (left) side of the mop module (100), and the right side may be referred to as the right (right) side of the mop module (100). In addition, the direction connecting the left and right sides may be referred to as the left-right direction. The left-right direction may refer to the front-back direction and the direction perpendicular to each other on the horizontal plane.

[0093] In addition, based on the state in which the mop module (100) is placed on the floor, that is, based on the state in which the mop (150) is placed on the floor and can wipe the floor, the direction approaching the floor can be referred to as the lower side or downward, and the direction away from the floor can be referred to as the upper side or upward.

[0094] The mop module (100) may further include a rotating cleaning unit (140) that is rotatably provided on the lower side of the module housing (110). For example, the rotating cleaning unit (140) may be a rotating plate formed in a circular shape.

[0095] For example, the above-described rotary cleaning units (140) may be provided as a pair and arranged in the left-right direction. At this time, the pair of rotary cleaning units (140) may rotate independently. For example, the rotary cleaning unit (140) may include a first rotary cleaning unit (141) and a second rotary cleaning unit (142).

[0096] The rotating cleaning unit (140) can be combined with a mop (150). The mop (150) can be formed in the shape of a disk, for example. The mop (150) can include a first mop (151) and a second mop (152).

[0097] When the mop (150) is placed on the floor, the mop (150) is brought into close contact with the floor due to the load of the mop module (100), so the frictional force between the mop (150) and the floor increases.

[0098] The module housing (110) forms the outer shape of the mop module (100), and a suction port (113) for sucking air can be formed. The suction port (113) can be formed, for example, at the front end of the lower surface of the module housing (110). The suction port (113) can be formed to extend left and right from the module housing (110).

[0099] The module housing (110) may include a lower housing (111) and an upper housing (112) coupled to the upper side of the lower housing (111).

[0100] The lower housing (111) is equipped with a rotating cleaning unit (140) and can form the outer shape of a mop module (100).

[0101] The lower housing (111) may include a bottom surface (111a) to which a rotating cleaning unit (140) is coupled. At this time, the lower surface of the bottom surface (111a) is arranged to face the floor surface when the mop module (100) is placed on the floor surface, and a water supply unit (130), a heating unit (136), and a driving motor (170) may be provided on the upper surface of the bottom surface (111a).

[0102] Meanwhile, referring to FIG. 10, a steam window coupling portion (111b) that is coupled to a steam window (200) and forms a space where moisture condenses may be provided on the bottom surface (111a) of the lower housing (111).

[0103] The steam window coupling portion (111b) can be symmetrically arranged on the left and right rear ends of the lower housing (111).

[0104] At this time, the distance from the center of rotation of the rotating cleaning unit (140) to the steam window coupling unit (111b) may be greater than the radius of the rotating cleaning unit (140). In addition, the distance from the center of rotation of the rotating cleaning unit (140) to the steam window coupling unit (111b) may be smaller than the radius of the mop (150).

[0105] Accordingly, the steam window coupling part (111b) can be placed above the area where the mop (150) rotates. With this configuration, steam evaporated from the outer surface of the mop (150) can pass through the steam window coupling part (111b) and flow into the steam window (200).

[0106] The steam window coupling part (111b) can have a steam window (200) coupled to the upper side. Accordingly, the steam window (200) and the steam window coupling part (111b) can be coupled to form a space in which steam is accommodated inside.

[0107] Meanwhile, a steam inlet passage (230) may be formed in the steam window joint (111b). The steam inlet passage (230) is arranged on the upper side of the mop (150) so that steam evaporated from the mop (150) may be introduced.

[0108] Meanwhile, at least one filter part (111ba) may be formed in the steam window joint part (111b) to prevent foreign substances from entering the interior of the steam window (200). That is, at least one filter part (111ba) may be formed to protrude from the steam window joint part (111b) to block a portion of the steam inflow path (230).

[0109] With this configuration, there is an effect of being able to block foreign substances on the rag (150) or foreign substances tangled through moisture from flowing into the interior of the steam window (200) through the steam inlet passage (230).

[0110] A guide surface (111c) may be formed on the bottom surface (111a) of the lower housing (111). The guide surface (111c) may be formed at a position facing the rotating cleaning unit (140) and may be formed to be inclined toward the steam window (200).

[0111] At this time, the guide surface (111c) can be formed in a fan-shaped range connecting the center of rotation of the rotating cleaning unit (140) to the lower part of the steam window (200).

[0112] In addition, the guide surface (111c) may be formed so that the distance from the rotating cleaning unit (140) increases as it goes radially outward from the position where the rotation center of the rotating cleaning unit (140) is arranged toward the steam window (200). That is, the guide surface (111c) may be formed so that the distance from the ground increases as it goes from the position where the rotation center of the rotating cleaning unit (140) is arranged toward the steam window (200).

[0113] With this configuration, the steam can be guided to flow to the steam window (200) by utilizing the upward flow property of the steam and the centrifugal force of the mop (150).

[0114] Meanwhile, the bottom surface (111a) may be integrally connected to the steam window coupling portion (111b). On the other hand, since the distance from the ground of the guide surface (111c) increases as it moves toward the steam window (200), a height difference may occur between it and the steam window coupling portion (111b). At this time, in the present invention, a space through which gas can flow may be formed between the guide surface (111c) and the steam window coupling portion (111b) (see FIG. 13).

[0115] With this configuration, steam and air flowing along the guide surface (111c) can be introduced into the space formed between the guide surface (111c) and the steam window joint (111b) and into the steam window (200).

[0116] A sealing gasket (111d) can be combined with the bottom surface (111a) of the lower housing (111).

[0117] The sealing gasket (111d) can be formed of a material capable of blocking the passage of moisture.

[0118] The sealing gasket (111d) is positioned adjacent to the diffuser (137) and the steam window coupling portion (111b), and can be connected to the diffuser (137) and the steam window coupling portion (111b). In addition, the sealing gasket (111d) can be formed in a ring shape overall. Accordingly, when looking at the bottom surface (111d) of the module housing (110), the sealing gasket (111d) can be exposed in a ring shape connecting the diffuser (137) and the steam window coupling portion (111b).

[0119] With this configuration, there is an effect of blocking moisture that flies as the mop (150) rotates from flowing into the module housing (110).

[0120] Additionally, a steam transfer pipe (137b) may be arranged between the bottom surface (111a) of the lower housing (111) and the sealing gasket (111d). Through this, steam discharged from the diffuser (137) can be guided to the steam window (200).

[0121] Therefore, according to the present invention, steam can be quickly introduced into the steam transfer pipe (137b), and steam can be quickly supplied to the steam window (200), so that the user can quickly check whether steam is being sprayed.

[0122]

[0123] A suction port (113) may be formed in the lower housing (111). Specifically, a suction port (113) may be formed on the bottom surface of the lower housing (111). The suction port (113) refers to a space through which air containing dust can be introduced. With this configuration, when the suction motor (not shown) of the cleaner body (400) is operated, dust and air existing around the floor surface can be sucked into the flow path of the mop module (100) through the suction port (113).

[0124] The lower housing (111) may be provided with a board installation portion in which a printed circuit board (190) for controlling the drive motor (170) is installed. For example, the board installation portion may be formed in a hook shape extending upward from the lower housing (111).

[0125] A nozzle hole (not shown) for a diffuser (137) to pass through may be formed in the lower housing (111). Water or steam (water vapor) passing through the heating unit (136) and the diffuser (137) through the nozzle hole (not shown) may be supplied to the mop (150).

[0126] Meanwhile, although not shown, a light-emitting module may be provided in the lower housing (111) according to an embodiment. Specifically, a light-emitting module may be provided on the front of the lower housing (111).

[0127] The light-emitting module can irradiate light in front of the mop module (100) to identify foreign substances or microorganisms present in front of the mop module (100).

[0128] The light-emitting member can radiate light forward or downward. For example, the light-emitting member can be composed of a plurality of LEDs. In this case, the light radiated by the light-emitting member can be visible light, and in some embodiments, infrared (IR) or ultraviolet (UV) light. With this configuration, when the light-emitting member is in operation, not only can the presence of foreign substances or microorganisms in front of the mop module (100) be confirmed, but also the presence of foreign substances or microorganisms in front of the mop module (100) can be sterilized, thereby improving hygiene.

[0129] The upper housing (112) covers the upper side of the lower housing (111) and can form the outer shape of the mop module (100) of the present invention.

[0130] In addition, the module housing (110) may further include a flow path that communicates with the suction port (113) and guides air flowing in from the suction port (113) to the cleaner body (400).

[0131] The euro portion can be placed in the upper central portion of the lower housing (111), and the end portion can be connected to a connecting pipe (180).

[0132] Accordingly, since the suction port (113) can be extended in a roughly straight shape in the front-back direction by the arrangement of the euro portion, the length of the suction port (113) can be minimized, and thus the euro loss in the mop module (100) can be minimized.

[0133] The front part of the flow path can cover the upper side of the suction port (113). The flow path can be arranged to slope upward from the front end to the rear end. That is, the upper surface of the flow path can be inclined at a predetermined angle with respect to the bottom surface. In addition, the upper surface of the flow path can be inclined at a predetermined angle with respect to the bottom surface (111a) of the lower housing (111).

[0134] Therefore, the euro section can be formed with a lower height in the front part than in the back part.

[0135] According to this embodiment, since the front portion of the above-mentioned euro portion has a low height, there is an advantage in that the height of the front portion can be reduced among the total height of the above-mentioned mop module (100). The lower the height of the above-mentioned mop module (100), the higher the possibility of being able to clean by inserting it into a narrow space under furniture or a chair.

[0136] Meanwhile, in this embodiment, the heating unit (136) may be placed on the upper side of the euro section. With this configuration, the heating unit (136) can be stably supported while being placed at a predetermined angle with respect to the floor surface.

[0137]

[0138] A blocker (114) may be arranged on the lower surface of the lower housing (111). The blocker (114) may block moisture emitted from the mop (150) from diffusing to the suction port (113) by blocking the front space where the suction port (113) is arranged and the rear space where the mop (150) is arranged. For example, the blocker (114) may include a central portion (114a) and an extension portion (114b). At this time, a pair of extension portions (114b) may be symmetrically connected to ends on both sides of the central portion (114a). In addition, the central portion (114a) may be arranged at the rear of the suction port (113) to block moisture from flowing toward the suction port (113). In addition, the extension portion (114b) may be provided in an arc shape so as to surround the circular mop (150).

[0139] A plurality of rollers may be provided on the lower surface of the lower housing (111) for smooth movement of the mop module (100).

[0140] For example, a front roller (115) may be positioned in front of a mop (150) in the lower housing (111). The front roller (115) may include a first roller (115a) and a second roller (115b). The first roller (115a) and the second roller (115b) may be spaced apart from each other in the left-right direction.

[0141] The first roller (115a) and the second roller (115b) can each be rotatably connected to a shaft. The shaft can be fixed to the lower side of the lower housing (111) in a state where it is arranged to extend in the left and right directions.

[0142] The distance between the shaft and the front end of the lower housing (111) is longer than the minimum distance between the mop (150) and the front end of the lower housing (111).

[0143] For example, at least a portion of the rotary cleaner (140) may be positioned between the shaft of the first roller (115a) and the shaft of the second roller (115b).

[0144] According to this arrangement, the rotating cleaning unit (140) can be positioned as close as possible to the suction port (113), and the area cleaned by the rotating cleaning unit (140) among the floor surfaces where the mop module (100) is positioned is increased, so that the floor cleaning performance can be improved.

[0145] In the present embodiment, since the first roller (115a) and the second roller (115b) are coupled to the lower side of the lower housing (111), the mobility of the mop module (100) can be improved.

[0146] The lower housing (111) may further be provided with a third roller (116). Accordingly, the first roller (115a) and the second roller (115b) can support the mop module (100) at three points together with the third roller (116). At this time, the third roller (116) may be positioned at the rear of the mop (150) so as not to interfere with the mop (150).

[0147] Although not shown, a cooling air inlet may be formed in the lower housing (111) according to an embodiment. External air may be introduced into the interior of the module housing (110) through the cooling air inlet. In addition, the cooling air inlet may be formed on the front side wall of the lower housing (111). With this configuration, when the mop module (100) moves forward by a user's operation, the amount of air introduced may increase.

[0148] Although not shown, a cooling air outlet may be formed in the upper housing (112) according to an embodiment. Air inside the module housing (110) may be discharged to the outside through the cooling air outlet. In addition, the cooling air outlet may be formed on both side walls of the upper housing (112). With such a configuration, the air drawn in through the cooling air inlet may be guided to pass through the drive motor (170) while flowing to the cooling air outlet, and there is an advantage in that the drive motor (170) may be prevented from overheating.

[0149] In addition, based on the state in which the lower housing (111) is placed on the floor, the cooling air outlet can be positioned further from the ground than the cooling air inlet. With this configuration, the heated air inside the module housing (110) can rise and be effectively discharged to the cooling air outlet.

[0150] Meanwhile, the module housing (110) may further include a frame portion (113) surrounding the bottom surface (111a). Specifically, the frame portion (113) may be arranged on the side surface of the module housing (100). For example, the frame portion (113) is arranged above the outer end of the bottom surface (111a) of the lower housing (111) and below the outer end of the upper surface of the upper housing (112). The frame portion (113) may be formed by combining a portion of the lower housing (111) and a portion of the upper housing (112). The frame portion (113) is configured to connect the bottom surface (111a) of the lower housing (111) and the upper surface of the upper housing (112) to each other.

[0151] As in the present invention, in the case of a cordless vacuum cleaner (1), various cleaning functions can be provided by replacing the vacuum cleaner module including the mop module (100). To this end, in the case of the mop module (100), both a heating unit (136) that provides heat to the mop (150) and a driving motor (170) that provides rotational force to the mop (150) must be provided.

[0152] Accordingly, in order to accommodate a relatively large heating element (136) and a driving motor (170), a space of a predetermined height is required in the module housing (110), and a frame (113) is required to support this space and protect the heating element (136) and the driving motor (170).

[0153] Therefore, in the present invention, a heating part (136) and a driving motor (170) can be placed on the inside of the frame part (113).

[0154] Meanwhile, a steam window (200) may be attached to the outside of the frame (113). In the case of the steam window (200), it is necessary to place it in a location that can be easily confirmed by the user.

[0155] At this time, the present invention has the effect of lowering the vertical height by being coupled to the outer side of the frame (113) of the steam window (200). Through this, the mop module (100) can be inserted into narrow spaces under furniture or chairs, etc., and the cleaning area becomes wider.

[0156]

[0157] The mop module (100) may further include a water tank (120) to supply moisture to the mop (150).

[0158] The water tank (120) can be detachably connected to the module housing (110). Specifically, the water tank (120) can be coupled to the upper side of the upper housing (112). For example, the water tank (120) can be mounted on a water tank mounting portion formed on the upper surface of the upper housing (112).

[0159] Additionally, the water tank (120) may be placed above the heating unit (136). Specifically, the water tank (120) is placed above the heating unit (136) and spaced apart from the heating unit (136). That is, the water tank (120) may be placed above the heating unit (136) with the upper housing (112) interposed therebetween.

[0160] With the water tank (120) mounted on the module housing (110), the water tank (120) can form the exterior of the mop module (100).

[0161] In fact, the entire upper wall of the water tank (120) can form the upper surface appearance of the mop module (100). Accordingly, the user can visually confirm whether the water tank (120) is mounted in the module housing (110).

[0162] The module housing (110) may further include a water tank separation button that is operated to separate the water tank (120) when the water tank (120) is mounted on the module housing (110). For example, the water tank separation button may be located at the center of the mop module (100). Therefore, there is an advantage in that a user can easily recognize the water tank separation button and operate the water tank separation button.

[0163] When the water tank (120) is mounted on the module housing (110), water in the water tank (120) can be supplied to the mop (150). Specifically, water stored in the water tank (120) can be supplied to the mop (150) through the water supply unit (130).

[0164] Specifically, a space capable of storing water is formed inside the water tank (120). The water stored in the water tank (120) can be supplied to the heating unit (136) through at least one pipe (hose). The water introduced into the heating unit (136) can be heated and, depending on the user's selection, can also be converted into steam (water vapor). The water or steam heated in the heating unit (136) can be supplied to the mop (150) through the diffuser (137).

[0165] The water tank (120) includes a water inlet. The water inlet is a hole through which water flows into the water tank (120). For example, the water inlet may be formed on the side of the water tank (120).

[0166] The water tank (120) includes a drain. The drain is a hole through which water stored in the water tank (120) is discharged. The water discharged from the drain can flow to the heating unit (136). The drain can be formed on the lower surface of the water tank (120).

[0167] The water tank (120) includes an air hole. The air hole is a hole through which air can flow into the water tank (120). When water stored inside the water tank (120) is discharged to the outside, the pressure inside the water tank (120) decreases, and air can flow into the water tank (120) through the air hole to compensate for the decreased pressure. For example, the air hole can be formed at the top of the water tank (120).

[0168]

[0169] The mop module (100) of the present invention may include a water supply unit (130) having a path formed to supply water flowing from a water tank (120) to a mop (150).

[0170] Specifically, the water supply unit (130) may include a water tank connection unit (131) that introduces water from a water tank (120) into the module housing (110), a water inlet pipe (132) that supplies water introduced into the water tank connection unit (131) to a water pump (133), a guide pipe (134) that supplies water from the water pump (133) to a T-shaped connector, and a water supply pipe (135) that supplies water introduced into the connector to a heating unit (136).

[0171] The water tank connection (131) can operate a valve (not shown) inside the water tank (120) and allow water to flow.

[0172] The water tank connection (131) can be connected to the lower side of the upper housing (112), and a portion of it can protrude upwards through the upper housing (112).

[0173] The water tank connection part (131) protruding upward can be introduced into the water tank (120) by penetrating the outlet of the water tank (120) when the water tank (120) is installed in the upper housing (112).

[0174] The upper housing (112) may be provided with a sealer to prevent water discharged from the water tank (120) from leaking around the water tank connection portion (131). For example, the sealer may be formed of a rubber material and may be coupled to the upper housing (112) on the upper side of the upper housing (112).

[0175] A water pump (133) may be installed in the upper housing (112) to control the discharge of water from the water tank (120).

[0176] A water pump (133) can provide water flow. The water pump (133) may include a first connection port to which a water inlet pipe (132) is connected, and a second connection port to which a guide pipe (134) is connected. At this time, with respect to the water pump (133), the first connection port may be an inlet, and the second connection port may be an outlet.

[0177] The water pump (133) is a pump that operates to connect the first connection port and the second connection port by expanding or contracting as the internal valve body operates, and can be implemented by a known structure, so a detailed description thereof will be omitted.

[0178] A water supply pipe (135) can connect the connector and the water inlet (212) of the heating unit (136). For example, the water supply pipe (135) can be a pair of pipes branching from the connector.

[0179] Accordingly, the water supplied to the water inlet pipe (132) flows into the water pump (133) and then flows into the guide pipe (134). The water flowing into the guide pipe (134) flows into the water supply pipe (135) by the connector. Then, the water flowing into the water supply pipe (135) is supplied to the heating unit (136).

[0180]

[0181] The heating unit (136) is a device that heats water. The heating unit (136) is placed inside the module housing (110). Specifically, the heating unit (136) is installed on the upper surface of the lower housing (111).

[0182] Meanwhile, in the present invention, the heating unit (136) is arranged at an angle. Specifically, with the module housing (110) placed on the floor, the bottom surface of the heating unit (136) may be arranged to form a predetermined angle with the floor surface.

[0183] The heating unit (136) can heat water to generate high-temperature water or steam (water vapor). The heating unit (136) can heat water supplied from the water tank (120) and supply it to the mop (150).

[0184] The heating unit (136) is provided in the mop module (100) rather than in the vacuum cleaner body (400). This is to prevent cleaning from becoming inconvenient due to the weight and volume of the heating unit during dry cleaning when the heating unit is placed in the vacuum cleaner body.

[0185] The heating unit (136) can be coupled to the upper part (upper surface of the bottom) of the lower housing (111). For example, the heating unit (136) can be coupled to the upper surface of the flow path part. In this case, since the flow path part is coupled to the central part of the upper surface of the lower housing (111), the heating unit (136) can also be positioned in the central part of the lower housing (111). With this configuration, when the heating unit (136) is operated, a specific location may not be overheated by the heat supplied from the heating unit (136), thereby preventing damage to the mop module (100). In addition, the overall volume of the mop module (100) can be minimized.

[0186] The heating unit (136) may include a heating chamber (136a), a heater (136b), a lower cover (136c), a sealer (136d), an upper cover (136e), a lower insulator (136f), an upper insulator (136g), an overheating circuit breaker (136h), and a temperature detection unit (136i).

[0187] At this time, a heater (136b) is disposed on the lower side of the heating chamber (136a), a lower insulator (136f) is disposed on the lower side of the heater (136b), and a lower cover (136c) is disposed on the lower side of the lower insulator (136f) to cover the lower side of the heating unit (136). In addition, a sealer (136d) is disposed on the upper side of the heating chamber (136a), an upper insulator (136g) is disposed on the upper side of the sealer (136d), and an upper cover (136e) is disposed on the upper side of the upper insulator (136g) to cover the upper side of the heating unit (136). Meanwhile, an overheating circuit breaker (136h) and a temperature detection unit (136i) are disposed on the outer surface of the heating chamber (136a).

[0188] The heating chamber (136a) can provide a space in which a path through which moisture flows is formed inside, and in which moisture flowing through the path is heated by receiving heat generated from a heater (136b).

[0189] At this time, the height from the floor surface to the water inlet of the heating chamber (136a) may be higher than the height from the floor surface to the discharge port of the heating chamber (136a).

[0190] With this configuration, water flowing into the water inlet of the heating chamber (136a) can be heated and moved upwardly by convection, but can also be heated by flowing from the top to the bottom within the heating chamber (136a) by gravity.

[0191] Moreover, even if the water heated inside the heating chamber (136a) changes into steam and rises, it is not discharged to the upper part of the heating chamber (136a) but remains inside the heating chamber (136a) and can be additionally heated.

[0192] In addition, the drain generated inside the heating unit (136) is not discharged to the outside and can be continuously heated.

[0193] The heater (136b) can generate heat. The heater (136b) is a device that can convert electrical energy into thermal energy, and can be implemented using a known structure, so a detailed description thereof will be omitted.

[0194] The heater (136b) is positioned at the lower side of the heating chamber (136a) and can supply heat to the heating chamber (136a). Specifically, the heater (136b) can be in contact with the bottom surface of the heating chamber (136a). Therefore, when heat is generated in the heater (136b), the heating chamber (136a) in contact with the heater (136b) can be heated by conduction. Accordingly, the heater (136b) can receive power from a battery (not shown) provided in the cleaner body (400) and heat water flowing inside the heating chamber (136a).

[0195] Meanwhile, the heater (136b) can control the temperature of the water according to the user's input. In addition, the heater (136b) can change the phase of the water into steam (water vapor) according to the user's input.

[0196] Meanwhile, depending on the embodiment, a plurality of heaters (136b) may be provided. For example, the heaters (136b) may be respectively positioned along the left and right directions of the mop module (100). In another example, the heaters (136b) may be respectively positioned along the front and rear directions of the mop module (100).

[0197] The lower cover (136c) is positioned below the heater (136b) and the lower insulator (136f), and can cover the heater (136b) and the lower insulator (136f). For example, the lower cover (136c) may be formed in a flat shape, but may be formed in a shape that can surround the heater (136b) and the lower insulator (136f). The lower cover (136c) may be formed of a material that can block heat generated from the heater (136b).

[0198] With this configuration, energy efficiency can be improved by preventing heat generated from the heater (136b) from escaping to the outside of the heating unit (136). In addition, damage to components housed inside the module housing (110) due to heat generated from the heater (136b) can be prevented.

[0199] The sealer (136d) is positioned above the heating chamber (136a) and can seal the upper portion of the heating chamber (136a). Specifically, the sealer (136d) can seal the open upper portion of the chamber body (211). The sealer (136d) can be formed of a material capable of blocking the passage of moisture. With this configuration, even if water vapor generated inside the heating chamber (136a) rises, it can be blocked by the sealer (136d) and prevented from leaking to the outside.

[0200] The upper cover (136e) is positioned above the sealer (136d) and the upper insulator (136g), and can cover the sealer (136d) and the upper insulator (136g). For example, the upper cover (136e) may be formed in a flat shape, but may be formed in a shape that can wrap the sealer (136d) and the upper insulator (136g). The upper cover (136e) may be formed of a material that can block heat transmitted through the sealer (136d).

[0201] With this configuration, energy efficiency can be improved by preventing heat generated from the heater (136b) from escaping to the outside of the heating unit (136). In addition, damage to components housed inside the module housing (110) due to heat generated from the heater (136b) can be prevented.

[0202] The lower insulator (136f) is positioned between the heater (136b) and the lower cover (136c) and can block heat transferred from the heater (136b). The lower insulator (136f) may be formed to have a larger area than the heater (136b). For example, the lower insulator (136f) may be formed in a flat plate shape and made of a material capable of blocking heat transfer.

[0203] With this configuration, the heat generated from the heater (136b) can be prevented from escaping to the outside of the heating unit (136), thereby improving energy efficiency. In addition, the heat generated from the heater (136b) can be prevented from damaging components housed inside the module housing (110). In particular, in the present embodiment, the heat generated from the heater (136b) is doubly blocked by the lower insulator (136f) and the lower cover (136c), thereby maximizing the effects of improving energy efficiency and preventing component damage.

[0204] The upper insulator (136g) is positioned above the sealer (136d) and can block heat transferred from the heating chamber (136a). The upper insulator (136g) may be formed to have a larger area than the sealer (136d). For example, the upper insulator (136g) may be formed in a flat plate shape and made of a material capable of blocking heat transfer.

[0205] With this configuration, the heat of the heating chamber (136a) heated by the heater (136b) can be prevented from escaping to the outside of the heating unit (136), thereby improving energy efficiency. In addition, the heat of the heating chamber (136a) can be prevented from escaping to the outside of the heating unit (136) and damaging components accommodated inside the module housing (110). In particular, in the present embodiment, the heat of the heating chamber (136a) is doubly blocked by the upper insulator (136g) and the upper cover (136e), thereby maximizing the effects of improving energy efficiency and preventing component damage.

[0206] An overheat circuit breaker (136h) is placed on the side of the heating chamber (136a) and can cut off power supplied to the heater (136b) when the temperature of the heating chamber (136a) is higher than a predetermined reference temperature (Tr).

[0207] An overheating circuit breaker (136h) may be placed in the heating chamber (136a). Specifically, the overheating circuit breaker (136h) may be placed on the outer surface of the heating chamber (136a).

[0208] An overheat circuit breaker (136h) can be placed at a location where heat is concentrated in the heating chamber (136a).

[0209] The overheat circuit breaker (136h) may be a device that cuts off the connection of a circuit when overheating occurs. For example, the overheat circuit breaker (136h) may be a thermal protector. The thermal protector may be a device that automatically cuts off the connection of a circuit when overheating occurs using a bimetal. In addition, the overheat circuit breaker (136h) may include any means for cutting off the connection of a circuit when overheating occurs.

[0210] The temperature detection unit (136i) can measure the temperature of the heating unit (136).

[0211] The temperature detection unit (136i) can be placed on the side of the heating chamber (136a).

[0212] The temperature detection unit (136i) can measure the temperature of the heating chamber (136a). For example, the temperature detection unit (136i) can be a thermistor.

[0213]

[0214] The diffuser (137) is configured to discharge water from the water tank (120) to the mop (150).

[0215] Specifically, the diffuser (137) includes at least one nozzle, and can supply moisture discharged from the heating unit (136) through the nozzle to the mop (150).

[0216] The diffuser (137) can be accommodated in a space formed inside the module housing (110), and a part of the diffuser (137) can be exposed to the outside of the module housing (110) by passing through a nozzle hole (not shown) formed in the module housing (110).

[0217] The diffusers (137) can be mounted in pairs in the module housing (110) and arranged in the left-right direction. In addition, the pair of diffusers (137) arranged in the left-right direction can be formed in a symmetrical shape (mirror image) of each other.

[0218] The diffuser (137) is connected to the heating unit (136) and can supply moisture flowing through the heating unit (136) to the mop (150).

[0219] The diffuser (137) has a diffusion path formed therein through which moisture can flow, and includes a nozzle through which moisture flowing through the diffusion path is discharged as a mop.

[0220] A steam outlet (137a) is formed in the nozzle of the diffuser (137). Moisture sprayed from the steam outlet (137a) is supplied to a mop (150). The mop (150) rotates while absorbing the moisture supplied through the diffuser (137) and cleans the floor.

[0221]

[0222] The rotating cleaning unit (140) can rotate by receiving power from the driving motor (170). For example, the rotating cleaning unit (140) may be a rotating plate. The rotating cleaning unit (140) may be formed in a circular shape or an annular shape with spokes, and a mop (150) may be attached to the lower surface.

[0223] At this time, the rotating cleaning unit (140) can be placed parallel to the floor surface while the mop module (100) is placed on the floor surface.

[0224] In this regard, FIG. 11 shows a perspective view for explaining a rotating cleaning unit in a mop module according to one embodiment of the present invention.

[0225] Referring to FIG. 11, the rotary cleaner (140) includes a rotary cleaner body (140a) and a blade (140b).

[0226] The rotating cleaning unit body (140a) is formed in a disc shape, and the upper surface can be arranged to face the bottom surface (111a) of the lower housing (111), and the lower surface can be arranged to face the mop (150). At this time, the rotating cleaning unit body (140a) can be arranged parallel to at least a part of the bottom surface (111a) of the lower housing (111).

[0227] A shaft to which power of a driving motor (170) is transmitted may be coupled to the center of rotation of the rotating cleaning unit body (140a). In addition, a protrusion may be formed along the circumferential direction at the radially outer end of the rotating cleaning unit body (140a).

[0228] The blade (140b) may be formed on the upper surface of the rotating cleaner body (140a). The blade (140b) may be formed to protrude from the upper surface of the rotating cleaner body (140a) toward the module housing (110).

[0229] The blade (140b) can be formed to protrude in an arc radially outward from the center of rotation of the rotating cleaning body (140a).

[0230] With this configuration, the blade (140b) can perform the role of a kind of rotary wing by rotating together with the rotary cleaner body (140a) when the rotary cleaner body (140a) rotates.

[0231] With this configuration, the blade (140b) can cause air and steam existing between the bottom surface (111a) of the lower housing (111) and the rotating cleaning body (140a) to flow radially outward.

[0232] Accordingly, according to the present invention, the steam discharged from the steam discharge port (137a) and remaining between the bottom surface (111a) of the lower housing (111) and the rotating cleaning unit body (140a) can be made to flow toward the steam window (200). As a result, there is an effect of minimizing steam waste and quickly supplying steam to the steam window (200).

[0233] Meanwhile, the lower surface of the rotating cleaning unit body (140a) may include an attachment means for attaching a mop (150). For example, the attachment means may be Velcro.

[0234]

[0235] The rotary cleaner (140) may be positioned, for example, at the rear of the suction port (113) on the lower side of the module housing (110).

[0236] Therefore, when moving the mop module (100) forward to clean, foreign substances and air on the floor surface are sucked in by the suction port (113), and then the floor surface can be wiped by the mop (150).

[0237] At least one rotary cleaning unit (140) may be provided on the lower side of the module housing (110). For example, the rotary cleaning unit (140) may include a first rotary cleaning unit (141) connected to a first driving motor (171) and having a first mop (151) attached thereto, and a second rotary cleaning unit (142) connected to a second driving motor (172) and having a second mop (152) attached thereto.

[0238] The rotating cleaning unit (140) can be placed on the lower side of the lower housing (111). That is, the rotating cleaning unit (140) can be placed on the outside of the module housing (110).

[0239] Additionally, the rotary cleaner (140) may be connected to a driving motor (170) to receive power. For example, the rotary cleaner (140) may be connected to the driving motor (170) through at least one gear and may be rotated by the operation of the driving motor (170).

[0240] The rotating cleaning unit (140) may include a first rotating cleaning unit (141) and a second rotating cleaning unit (142). For example, when the mop module (100) is placed on the floor, the first rotating cleaning unit (141) may refer to the rotating cleaning unit (140) positioned on the left side, and the second rotating cleaning unit (142) may refer to the rotating cleaning unit (140) positioned on the right side, but is not limited thereto, and the left and right may be switched.

[0241] In this embodiment, the rotation center of the first rotating cleaner (141) and the rotation center of the second rotating cleaner (142) are spaced apart from each other in the left-right direction.

[0242] The center of rotation of the rotary cleaner (140) may be located further from the front end of the module housing (110) than the central axis that bisects the front and rear lengths of the module housing (110). This is to prevent the rotary cleaner (140) from blocking the suction port (113).

[0243] The distance between the rotation center of the first rotating cleaning unit (141) and the rotation center of the second rotating cleaning unit (142) can be formed to be larger than the diameter of the mop (150). This is to reduce mutual friction due to interference between the first mop (151) and the second mop (152) during rotation, and to prevent the cleanable area from being reduced by the amount of interference.

[0244]

[0245] The mop (150) can clean the floor surface by rotating motion.

[0246] The mop (150) can be attached to the lower side of the rotating cleaning unit (140) so as to face the floor surface.

[0247] The mop (150) is formed so that the bottom surface facing the floor has a predetermined area, and the mop (150) is formed in a flat shape. The mop (150) is formed so that the horizontal width (or diameter) is sufficiently larger than the vertical height. When the mop (150) is coupled to the lower housing (111), the bottom surface of the mop (150) can be parallel to the floor surface.

[0248] The bottom surface of the mop (150) may be generally circular, and the mop (150) may be formed in an overall rotationally symmetrical shape. In addition, the mop (150) may be detachably attached to the bottom surface of the rotating cleaning unit (140), and may be coupled to the rotating cleaning unit (140) and rotate together with the rotating cleaning unit (140).

[0249] When the rotating cleaning part (140) and the mop (150) are coupled to the lower side of the module housing (110), a part of the mop (150) protrudes outward from the mop module (100), so that it can clean not only the floor surface located below the mop module (100) but also the floor surface located on the outer side of the mop module (100).

[0250] For example, the mop (150) may protrude not only to both sides of the mop module (100), but also to the rear.

[0251] The mop (150) may include a first mop (151) coupled with a first rotating cleaning unit (141) and a second mop (152) coupled with a second rotating cleaning unit (142). Accordingly, when the first rotating cleaning unit (141) rotates by receiving power from the first driving motor (171), the first mop (151) may also rotate together, and when the second rotating cleaning unit (142) rotates by receiving power from the second driving motor (172), the second mop (152) may also rotate together.

[0252]

[0253] Meanwhile, the mop module (100) may further include a drive motor (170) that provides power to rotate the mop (150) and the rotating cleaning unit (140).

[0254] Specifically, the drive motor (170) may include a first drive motor (171) that rotates the first rotary cleaner (141) and a second drive motor (172) that rotates the second rotary cleaner (142).

[0255] In this way, since the first driving motor (171) and the second driving motor (172) operate individually, there is an advantage in that even if either the first driving motor (171) or the second driving motor (172) breaks down, the rotation of the rotary cleaner (140) is possible by the other one.

[0256] Meanwhile, the first driving motor (171) and the second driving motor (172) may be arranged spaced apart from each other in the left and right direction in the module housing (110). In addition, the first driving motor (171) and the second driving motor (172) may be positioned at the rear of the suction port (113).

[0257] The drive motor (170) may be placed within the module housing (110). For example, the drive motor (170) may be mounted on the upper side of the lower housing (111) and covered by the upper housing (112). That is, the drive motor (170) may be positioned between the lower housing (111) and the upper housing (112).

[0258]

[0259] Meanwhile, the mop module (100) includes a connecting pipe (180) that is connected to the vacuum cleaner body (400) or the extension pipe (300).

[0260] The connecting pipe (180) may include a first connecting pipe connected to an end of the euro section, a second connecting pipe rotatably connected to the first connecting pipe, and a guide pipe connecting the inside of the first connecting pipe and the second connecting pipe.

[0261] The first connecting pipe is formed in a tube shape, and one axial end is connected to the end of the flow path, and the other axial end can be rotatably coupled to the second connecting pipe. At this time, the first connecting pipe is formed in a shape in which a portion of the outer circumference is cut, and the cut portion can be arranged so as to face the second connecting pipe and the upper side. With this configuration, when the mop module (100) is placed on the ground, the angle formed by the second connecting pipe and the ground can be changed according to the movement of the user's arm. In other words, the first connecting pipe and the second connecting pipe can serve as a kind of joint that can adjust the angle of the mop module (100) and the vacuum cleaner body (400).

[0262] The second connecting pipe is formed in a tube shape, and one axial end is rotatably connected to the first connecting pipe, and the other axial end is detachably connected by inserting the cleaner body (400) or the extension pipe (300).

[0263] Meanwhile, depending on the embodiment, it is possible for an auxiliary battery to be connected to the second connector.

[0264] Meanwhile, wires may be embedded in the first connecting tube and the second connecting tube, and the wires embedded in the first connecting tube and the second connecting tube may be electrically connected to each other.

[0265] Meanwhile, the guide tube may connect the internal space of the first connecting tube and the internal space of the second connecting tube. The guide tube may have a flow path formed therein so that air sucked from the mop module (100) flows to the extension tube (300) and / or the vacuum cleaner body (400). At this time, the guide tube may be deformed together with the rotation of the first connecting tube and the second connecting tube. For example, the guide tube may be formed in the shape of a corrugated tube.

[0266]

[0267] Meanwhile, the mop module (100) may include a printed circuit board (190) that controls the mop module (100). The printed circuit board (190) may be energized and may have communication lines arranged thereon.

[0268] Meanwhile, the module housing (110) may be provided with an operating unit for controlling the amount of water discharged from the water tank (120) and the phase of the moisture.

[0269]

[0270]

[0271]

[0272] Meanwhile, FIG. 12 is a bottom view illustrating a state in which a mop is removed from a mop module according to one embodiment of the present invention, and FIG. 13 is a cross-sectional view illustrating a flow path of steam in a mop module according to one embodiment of the present invention.

[0273] Referring to FIGS. 1 to 13, the structure of the steam window and the movement path of steam in the mop module according to one embodiment of the present invention are described as follows.

[0274] A mop module (100) according to one embodiment of the present invention is characterized in that it further includes a steam window (200).

[0275] The steam window (200) is provided so that steam discharged from the heating unit (136) is condensed.

[0276] At this time, a pair of steam windows (200) may be provided and symmetrically placed on the left and right sides of the rear of the module housing (110).

[0277] Typically, the user cleans while looking around the mop module (100). At this time, the mop module (100) is positioned in front of the user's movement direction and moves back and forth in the forward and backward direction by the user's operation.

[0278] Therefore, when a user performs cleaning using the mop module (100), the user's eyes are positioned at the rear and upper side of the mop module (100), and the user's line of sight remains around the rear end and upper part of the mop module (100).

[0279] Therefore, according to the mop module (100) according to one embodiment of the present invention, there is an effect that can immediately notify the user who is cleaning while looking at the surroundings of the mop module (100) of the fact that steam is generated.

[0280] Furthermore, a connecting pipe (180) is provided at the rear central portion of the mop module (100) and is connected to an extension pipe (300). Accordingly, there may be cases where the user's view of the rear central portion of the mop module (100) is obstructed by the connecting pipe (180) or the extension pipe (300).

[0281] However, according to the mop module (100) according to one embodiment of the present invention, steam windows (200) are arranged on both left and right rear ends of the mop module (100), so that the user can be made aware of the fact that steam is generated without interference of the view of the connecting pipe (180) or the extension pipe (300).

[0282] At this time, the distance from the center of rotation of the rotating cleaner (140) to the steam window (200) may be greater than the radius of the rotating cleaner (140). In addition, the distance from the center of rotation of the rotating cleaner (140) to the steam window (200) may be smaller than the radius of the mop (150).

[0283] Accordingly, the steam window (200) can be placed above the area where the mop (150) rotates. With this configuration, steam evaporated from the outer surface of the mop (150) can flow into the steam window (200).

[0284] The steam window (200) can be coupled with a steam window coupling part (111b) on the lower side. Accordingly, the steam window (200) and the steam window coupling part (111b) can be coupled to form a space in which steam is accommodated inside.

[0285] Meanwhile, the steam window (200) includes a steam window body (210) and a ventilation hole (220).

[0286] The steam window body (210) contains steam inside, and the steam can condense on the inner surface of the steam window body (210).

[0287] For example, the steam window body (210) can be symmetrically placed on the left and right rear ends of the upper housing (112). The steam window body (210) can be coupled to the steam window coupling part (111b) of the lower housing (111) on the lower side.

[0288] The steam window body (210) may be formed in a form with an open bottom and a cross-sectional area that becomes narrower from the bottom to the top.

[0289] That is, the steam window body (210) includes an inner surface facing the module housing (110) and an outer surface forming the outer shape of the mop module (100), and a space is formed between the outer surface and the inner surface through which steam, water, and air can flow. At this time, the outer surface may be formed to form a slope with respect to the ground, so that the gap between the outer surface and the inner surface becomes narrower as it goes from the lower side to the upper side in the direction of gravity.

[0290] With this configuration, steam flowing upward from the mop (150) can be blocked and condensed on the outer surface. In addition, the condensed moisture can flow down along the outer surface by gravity.

[0291] Through this, the user can confirm that steam is condensing in the steam window (200) positioned on the left and right of the mop module (100). Therefore, when steam is generated during cleaning, the user can recognize that steam is forming in the steam window (200) positioned on the top of the mop module (100), and can immediately confirm whether steam is generated.

[0292] The steam window body (210) is configured so that the user can see the moisture condensed on the inner surface. For example, the steam window body (210) may be formed of a transparent or translucent material. Accordingly, when the user looks at the steam window body (210) while the heating unit (136) is in operation, the user can detect water droplets forming inside the steam window (200) or the inside of the steam window (200) turning cloudy.

[0293]

[0294] A ventilation hole (220) is formed in the steam window body (210), and air containing moisture can pass through it.

[0295] The ventilation hole (220) may be formed on one side of the steam window body (210). Specifically, the ventilation hole (220) may be formed on the top of the steam window body (210).

[0296] With this configuration, steam introduced into the steam window (200) can be discharged to the outside through the ventilation hole (220). This has the effect of preventing moisture from accumulating inside the steam window (200).

[0297]

[0298] Meanwhile, the mop module (100) according to one embodiment of the present invention may further include a steam window light (240).

[0299] The steam window light (240) is arranged inside the module housing (110) and can irradiate light toward the steam window (200). Specifically, the steam window light (240) is arranged inside the module housing (110) and can irradiate light toward the outside of the module housing (110). At this time, a hole may be formed on a portion of the edge surface (outer wall surface) of the module housing (110) facing the inner surface of the steam window (200) so that light may pass through, or a window made of a transparent material may be arranged. In this case, the light irradiated from the steam window light (240) can pass through the module housing (110) and illuminate the steam window (200).

[0300] Through this, the state of moisture condensation in the steam window (200) can be clearly confirmed by highlighting it.

[0301] In addition, when the supply of steam to the steam window (200) is terminated, the light irradiated from the steam window lighting (240) may serve to dry the moisture condensed inside the steam window (200).

[0302]

[0303] Therefore, in the mop module (100) according to one embodiment of the present invention, steam discharged from the steam discharge port (137a) is discharged to the mop (150) and can be diffused radially outward of the mop (150) by centrifugal force resulting from the rotation of the mop (150).

[0304] Thereafter, the steam is introduced into the steam inlet passage (230) and is received inside the steam window (200). Some of it may come into contact with the steam window (200) and be condensed, and the remaining part may be discharged to the outside through the ventilation hole (220).

[0305] In addition, a portion of the steam discharged from the steam outlet (137a) may be introduced between the rotating cleaning unit (140) and the bottom surface (111a) of the lower housing (111) through convection. At this time, as the blade (140b) of the rotating cleaning unit (140) rotates, the steam introduced between the rotating cleaning unit (140) and the bottom surface (111a) may flow radially outwardly of the rotating cleaning unit (140). In this process, the steam may be guided toward the steam window (200) along the incline of the guide surface (111c) and introduced into the space formed between the guide surface (111c) and the steam window coupling portion (111b) to be introduced into the steam window (200).

[0306] In addition, a portion of the steam evaporated from the mop (150) may also flow into the guide surface (111c) through the space between the rotating cleaning unit (140) and the steam window coupling portion (111b), and then flow into the steam window (200) through the space formed between the guide surface (111c) and the steam window coupling portion (111b).

[0307]

[0308] Meanwhile, FIG. 14 shows a partial enlarged view of FIG. 12, and FIG. 15 shows a cross-sectional view for explaining a diffuser in a mop module according to one embodiment of the present invention.

[0309] Referring to FIGS. 12 to 15, the process of supplying steam to a steam window (200) using a diffuser (137) in a mop module (100) according to one embodiment of the present invention will be described as follows.

[0310] A diffuser (137) according to one embodiment of the present invention may further include a steam transfer pipe (137b) and a valve (137c).

[0311] The steam transfer pipe (137b) may have a path formed therein to guide moisture discharged from the heating unit (136) to the steam window (200).

[0312] The steam transfer pipe (137b) may be positioned on the lower side of the module housing (110). For example, the steam transfer pipe (137b) may be positioned between the bottom surface (111a) of the module housing (110) and the sealing gasket (111d).

[0313] One end of the steam transfer pipe (137b) may be configured to branch off from the nozzle of the diffuser (137). That is, the flow path formed inside the steam transfer pipe (137b) may be formed to communicate with the steam discharge port (137a).

[0314] Additionally, the other end of the steam transfer pipe (137b) may be arranged to face the steam inlet passage (230). At this time, the passage formed inside the steam transfer pipe (137b) may be directly connected to the steam inlet passage (230), or may be arranged to be spaced apart from the steam inlet passage (230) by a predetermined distance. In this case, the other end of the steam transfer pipe (137b) may function as a kind of nozzle.

[0315] Through this, the steam discharged from the steam outlet (137a) can be directly supplied to the steam window (200), and the user can quickly be made aware that steam has been generated.

[0316] The valve (137c) is installed in the steam transfer pipe (137b) and can be opened when steam above a predetermined pressure flows in.

[0317] A valve (137c) is installed in a steam transfer pipe (137b) and can open and close a passage that supplies steam from a steam outlet (137a) to a steam window (200).

[0318] At this time, the valve (137c) can be opened from the steam outlet (137a) toward the steam window (200), and cannot be opened from the steam window (200) toward the steam outlet (137a). That is, the valve (137c) can function as a kind of check valve. With this configuration, the steam discharged from the steam outlet (137c) can be prevented from flowing backward.

[0319] Additionally, the valve (137c) can be opened only when the pressure of the gas including steam is higher than a preset pressure. That is, when steam is discharged from the steam discharge port (137a) at a pressure lower than the preset pressure, the valve (137c) is not opened.

[0320] In general, when steam is initially discharged from the steam discharge port (137a), the pressure increases momentarily as steam with a higher heat content than the surroundings undergoes thermal expansion, but after that, the pressure stabilizes while remaining constant.

[0321] Accordingly, the valve (137c) of the present invention can be opened only at the initial stage of steam generation when the pressure of the steam instantly increases, thereby supplying the steam to the steam window (200).

[0322] This has the effect of providing high responsiveness by allowing steam to be quickly sent to the steam window (200) at the initial stage of steam generation. In addition, after the situation in which the user must recognize the generation of steam has ended, the valve (137c) blocks the flow of steam through the steam transfer pipe (137b), thereby preventing the loss of steam discharged from the steam discharge port (137a).

[0323]

[0324] Meanwhile, referring to FIG. 1, the vacuum cleaner (1) of the present invention may include an extension tube (300).

[0325] The extension tube (300) can be combined with the vacuum cleaner body (400) and the mop module (100).

[0326] For example, the extension pipe (300) may be formed in a long cylindrical shape. Accordingly, the internal space of the extension pipe (300) may be communicated with the internal space of the mop module (100). In addition, the extension pipe (300) may be communicated with a suction path formed in the suction part of the vacuum cleaner body (400).

[0327] When suction power is generated through a suction motor (not shown), suction power can be provided to the mop module (100) through the suction unit and the extension pipe (300). Accordingly, external dust and air can be introduced into the cleaner body (400) through the mop module (100) and the extension pipe (300). In addition, dust and air introduced through the mop module (100) can pass through the extension pipe (300) and then be introduced into the cleaner body (400).

[0328] Meanwhile, a wire may be built into the extension tube (300). Accordingly, the vacuum cleaner body (400) and the mop module (100) may be electrically connected through the extension tube (300).

[0329]

[0330] Meanwhile, referring to FIG. 1, the vacuum cleaner (1) of the present invention may include a vacuum cleaner body (400).

[0331] The vacuum cleaner body (400) may be configured to include a suction motor, a dust bin, and a battery. The vacuum cleaner body (400) may receive power from the battery to operate the suction motor, and may generate suction power by operating the suction motor.

[0332] A suction path is formed in the vacuum cleaner body (400) so that air and dust flowing in from the mop module (100) can flow.

[0333] In addition, the vacuum cleaner body (400) may be equipped with at least one cyclone section that separates dust sucked in by applying the principle of a dust collector that utilizes centrifugal force. Accordingly, dust can be separated as air drawn in through the suction passage flows in a spiral manner.

[0334] And the vacuum cleaner body (400) is equipped with a dust bin, which can store dust separated from the air sucked in through the cyclone flow.

[0335] And the battery can supply power to the mop module (100). At this time, the battery can supply power to the driving motor (170) of the mop module (100). And the battery can supply power to the water pump (133) of the mop module (100).

[0336] The vacuum cleaner body (400) is equipped with an input unit so that the user can set whether to supply power, the strength of air suction, the strength of the mop's rotation, the amount of water supplied, whether to heat water, and whether to supply steam.

[0337]

[0338] Although the present invention has been described in detail through specific examples, this is for the purpose of specifically explaining the present invention, and the present invention is not limited thereto, and it is clear that the present invention can be modified or improved by a person having ordinary knowledge in the relevant field within the technical spirit of the present invention.

[0339] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. In the mop module of a vacuum cleaner that cleans foreign substances on the floor, A module housing including a frame surrounding the bottom surface; A water tank coupled with the above module housing and storing water inside; At least one rotating cleaning unit disposed on the lower side of the module housing and capable of having a mop attached thereto; A heating unit for heating water supplied from the above water tank; and A steam window coupled to the above module housing and positioned outside the frame, wherein moisture discharged from the heating unit is condensed; A mop module for a vacuum cleaner including:

2. In paragraph 1, A steam inlet path formed in the above module housing and guiding moisture discharged from the heating unit to the steam window; A mop module for a vacuum cleaner that further includes:

3. In paragraph 1, A steam discharge port for discharging moisture heated in the above heating section to the mop; and A steam inlet passage into which moisture discharged from the above heating section flows in; Including more, The above steam inlet is, A mop module for a vacuum cleaner, characterized in that it is positioned radially outer than the steam outlet based on the center of rotation of the rotating cleaning unit.

4. In paragraph 3, A mop module for a cleaner, characterized in that the distance from the center of rotation of the rotating cleaner to the steam outlet is greater than the radius of the rotating cleaner.

5. In paragraph 3, A mop module for a cleaner, characterized in that the distance from the center of rotation of the rotating cleaning unit to the steam inlet path is smaller than the radius of the mop.

6. In paragraph 1, On the bottom of the module housing, A mop module for a cleaner, characterized in that a guide surface is formed facing the rotating cleaning unit and is formed so as to be inclined toward the steam window.

7. In paragraph 6, The above guide surface is, A mop module for a vacuum cleaner, characterized in that the gap between the rotating cleaning unit and the rotating cleaning unit increases as it moves radially outward from the position where the center of rotation of the rotating cleaning unit is arranged toward the steam window.

8. In paragraph 1, The above rotating cleaner, Rotating cleaning unit body; and A blade formed in an arc shape along a radial direction and protruding toward the module housing from one side of the rotating cleaning unit body; A mop module for a vacuum cleaner including:

9. In paragraph 1, The above steam window is, A steam window body in which moisture discharged from the heating unit is condensed; and A ventilation hole formed in the above steam window body and through which air containing moisture passes; A mop module for a vacuum cleaner including:

10. In paragraph 1, The above module housing, A steam window joint which is combined with the above steam window to form a space where moisture condenses; Including, A mop module for a cleaner, characterized in that the distance from the center of rotation of the rotating cleaner to the steam window coupling part is greater than the radius of the rotating cleaner.

11. In paragraph 1, The above steam window is, A mop module for a cleaner, characterized in that a pair of steam windows are arranged on both left and right sides of the module housing, and the shortest distance between the pair of steam windows is longer than the distance between the centers of rotation of the pair of rotating cleaning units.

12. In paragraph 1, A steam window light disposed inside the module housing and irradiating light toward the steam window; A mop module of a vacuum cleaner, characterized by further including:

13. In paragraph 1, A diffuser having a steam outlet formed therein for supplying moisture heated in the heating section to the mop; Including more, The above diffuser, A steam transfer pipe branching from the above steam outlet and guiding steam to the steam window; A mop module for a vacuum cleaner including:

14. In paragraph 13, The above diffuser, A valve installed in the above steam transfer pipe and opened when steam exceeding a predetermined pressure flows in; A mop module for a vacuum cleaner including:

15. In paragraph 10, The above steam window joint is, A mop module for a vacuum cleaner, characterized in that at least one filter part is formed to prevent foreign substances from entering the interior of the steam window.

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