Wet mop module of cleaner

Abstract

The embodiments of the present disclosure relate to a mop module of a cleaner that cleans by wiping foreign substances on the floor, and further including a drying path configured to supply dry external air between a moisture supply hole and a suction port, thereby blocking moisture discharged from the moisture supply hole configured to supply moisture to a mop from flowing into the suction port of the mop module and drying the moisture, and preventing the mop module itself and the dust bin of the cleaner body of the cleaner from being contaminated.

Description

[Technical Field]

[0001] Embodiments of the present disclosure relate to a mop module of a cleaner, more particularly, a mop module of a cleaner configured to discharge water onto a mop to suck up or wipe out dust or foreign substances in a cleaning object area to be cleaned.[Background of the Disclosure]

[0002] A cleaner is an electric appliance that cleans by sucking up or mopping away dust or foreign substances in a cleaning object area to be cleaned.

[0003] Such cleaners may be classified into manual cleaners that perform cleaning while the user moves the cleaner, and automatic cleaners that perform cleaning while driving on their own.

[0004] The manual vacuum cleaners may be classified into canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners and stick vacuum cleaners, depending on the shape.

[0005] The methods of cleaning the floor are largely divided into dry cleaning and wet cleaning. The drying cleaning is a method of cleaning the floor by sweeping or sucking up dust and a conventional vacuum cleaner is an example of the dry cleaning. The wet cleaning is a method of cleaning the floor by wiping away dust with a mop.

[0006] Conventionally, a dry-only vacuum cleaner was used for dry cleaning, and a wet-only vacuum cleaner was used for wet drying. However, there was the inconvenience of having to purchase the above two different types of vacuum cleaners to clean different types of floors. To solve the above-mentioned disadvantage, a method has been studied in which a main body, a dry-cleaning module and a wet cleaning module are provided, and in which the dry-cleaning module is mounted on the main body for dry cleaning and the wet cleaning module (i.e., mop module) is mounted on the main body for wet cleaning.

[0007] However, in wet cleaning, if foreign substances are stuck to the floor, the foreign substances might still remain even after the floor is cleaned by rotating the mop that has absorbed water.

[0008] In addition, if microorganisms are growing on the floor, there is a limitation in that the microorganisms might not be completely sterilized even after rotating the wet mop to clean the floor.

[0009] To solve the disadvantages, a method of heating water through a heater and supplying high-temperature water or steam to the mop may be considered.

[0010] In this instance, a steam mop module includes a water tank that stores water, a heater that heats the water to create steam and a mop that receives water or steam to clean the floor. Here, it is preferred that each part is configured as a single assembly to facilitate replacement. For example, when the water tank or heater is disposed in a main body, there is a problem that cleaning becomes difficult due to the weight of the water tank or heater, which is an unnecessary part during the dry cleaning. Accordingly, in terms of easy cleaning, easy module replacement and space utilization, it is preferred to dispose the water tank or heater in the steam mop module rather than the main body of the vacuum cleaner.

[0011] Meanwhile, a vacuum cleaner including a steam generator is generally provided with power via a cord, so the vacuum cleaner can continuously operate the steam generator to supply steam.

[0012] Meanwhile, Korean Patent Publication No. 10-2023-0017096A (2023.02.03) discloses a steam cleaner that supplies steam to a rotating mop by providing a spraying unit in a housing.

[0013] In the case of the steam cleaner, the spraying unit with a spraying hole formed is installed in the lower housing of the cleaner nozzle, and can discharge steam toward the rotating unit (e.g., a rotary plate).

[0014] Meanwhile, the above steam cleaner may supply steam to the mop and simultaneously suck air containing dust through the suction port.

[0015] At this time, some of the moisture supplied to the mop may flow into the suction port, and there is a limit that contamination may occur around the suction port as dust and moisture become entangled on the suction port.

[0016] Or, there is a limit to the moisture that enters the suction port and flows into the dust bin of the cleaner body, which could cause bacterial growth or decay within the dust bin.[DETAILED DESCRIPTION OF THE INVENTION] [Technical problem]

[0017] Accordingly, one object of the present disclosure is to solve the above-noted disadvantages of the prior art, and to provide a mop module of a vacuum cleaner that may increase sterilization and foreign substance removal effect by supplying high temperature water or steam to a mop.

[0018] A further object of the present disclosure is to provide a mop module of a cleaner that may prevent moisture and dust from entangled and causing contamination around a suction port configured to suck up dust.

[0019] A still further object of the present disclosure is to provide a mop module of a cleaner that may prevent moisture supplied to the mop from flowing into the dust bin of the main body of the vacuum cleaner, thereby causing bacterial growth or decay inside the dust bin.[Technical Solution]

[0020] To solve the objects of the present disclosure, a mop module of a cleaner configured to perform cleaning by wiping out foreign substances from the floor surface may supply dry air to a suction port of the mop module.

[0021] Specifically, the mop module of the cleaner may include a module housing; a water tank coupled to the module housing and configured to store water therein; a heat generator configured to heat water supplied from the water tank; and a diffuser provided below the heat generator and configured to supply moisture heated in the heat generator to the mop. The module housing may include a lower housing in which a suction port configured to suck air containing dust therein, and the diffuser may include a diffuser housing coupled to a lower surface of the module housing; and a moisture supply hole formed in the diffuser housing in a pair, and configured to discharge moisture heated in the heat generator therefrom. A drying path through which air flows may be formed between the module housing and the diffuser housing.

[0022] At this time, the drying path may include a dry air discharge hole disposed between the suction port and the pair of moisture supply holes and configured to discharge air.

[0023] With this configuration, the air introduced through the drying path may dry the moisture discharged from the moisture supply hole.

[0024] The drying path may further include a dry air suction hole disposed in a rear side of the lower housing and configured to suck air.

[0025] With this configuration, dry air may be sucked into the drying path.

[0026] A guide rib may be protruded on a lower surface of the lower housing and configured to guide the flow of air flowing through the drying path.

[0027] Accordingly, air passing through the drying air may be guided to the suction port.

[0028] Meanwhile, a blocker may be protruded on a lower surface of the module housing and configured to block a front space where the suction port is located and a rear space where the moisture supply hole is located to prevent moisture discharged from the moisture supply hole from diffusing to the suction port.

[0029] At this time, moisture discharged from the moisture supply hole and air passing through the drying path may be introduced in the blocker.

[0030] Meanwhile, the drying path may be positioned behind the blocker.

[0031] In addition, the suction port may be disposed in a front of the blocker.

[0032] Therefore, the moisture may be dried while the blocker blocks the dust flowing into the suction port and the moisture discharged from the moisture supply hole from mixing.

[0033] As the drying path gets closer to the suction port, a gap between the module housing and the diffuser housing may become narrower.

[0034] With this configuration, the drying effect may be improved by increasing the flow rate of air discharged from the drying path.

[0035] In another aspect, a cleaner may further include a cleaner body comprising a suction motor configured to generate a suction power;

[0036] When the suction motor is operated, air passing through the drying path may be introduced into the suction port.

[0037] In addition, when the suction motor is operated, the air discharged from the drying path may be supplied to the moisture flowing from the mop to the suction port.

[0038] Therefore, the user may supply moisture to the mop and suck up dust by simply operating the suction motor, and dry the moisture flowing into the suction port from the mop by using the suction power of the suction motor.[Advantageous Effect]

[0039] As mentioned above, the mop module of the cleaner according to the present disclosure may increase sterilization and foreign substance removal effect by supplying high temperature water or steam to a mop.

[0040] Furthermore, the mop module of the cleaner according to the present disclosure may have the effect of supplying dry air to dry the moisture supplied by the mop so that it does not flow into the suction port configured to suck up dust, thereby preventing moisture and dust from becoming entangled and causing contamination around the suction port.

[0041] Still further, the mop module of the cleaner according to the present disclosure may have the effect of blocking moisture from flowing into the dustbin by evaporating and scattering the moisture supplied to the mop, and preventing bacterial growth or decay inside the dust bin due to moisture.[Description of Drawings]

[0042] FIG. 1 is a perspective view of a cleaner according to one embodiment of the present disclosure; FIG. 2 is a perspective view of a mop module according to one embodiment of the present invention with an upper housing removed; FIG. 3 is a plane view of FIG. 2; FIG. 4 is a bottom view of FIG. 2; FIG. 5 is a view to describe a diffuser in the mot module according to one embodiment; FIG. 6 is a view to describe a bottom of a lower housing in the mop module according to one embodiment; and FIG. 7 is a view to describe flow of moisture and air in the mop module according to one embodiment. [DESCRIPTION OF SPECIFIC EMBODIMENTS]

[0043] Description will now be given in detail according to exemplary embodiments disclosed herein, with reference to the accompanying drawings.

[0044] The present disclosure may be variously modified and may have various embodiments, and particular embodiments illustrated in the drawings will be specifically described below. The description of the embodiments is not intended to limit the present disclosure to the particular embodiments, but it should be interpreted that the present disclosure is to cover all modifications, equivalents and alternatives falling within the spirit and technical scope of the present disclosure.

[0045] FIG. 1 is a perspective view of a cleaner according to one embodiment of the present disclosure. FIGS. 2 to 4 area views to describe a mop module according to one embodiment. FIG. 5 is a view to describe a diffuser in the mot module according to one embodiment.

[0046] Referring to FIGS. 1 to 5, a cleaner 1 according to one embodiment of the present disclosure may include a cleaner body 500 including a suction motor for generating a suction power, a mop module 100 connected to the cleaner body 500 and configured to suck in air and foreign substances from the floor surface and clean the floor surface, and an extension pipe 400 connecting the cleaner body 500 and the mop module 100 to each other.

[0047] The mop module 100 according to the embodiment of the present disclosure may include a module housing 110 and a connection pipe 180 movably connected to the module housing 110.

[0048] The mop module 100 according to this embodiment may be connected to a handheld vacuum cleaner or canister vacuum cleaner to be used as one example.

[0049] Specifically, the mop module 100 may be detachably connected to a cleaner body 500 or an extension pipe 400. since the mop module 100 is connected to the cleaner body 500 or the extension pipe 400, the user can use the mop module 100 in cleaning the floor surface to be cleaned. At this time, the cleaner body 500 to which the mop module 100 is connected may separate dust in the air, using a multi-cyclone method.

[0050] The mop module 100 may be operated by receiving power from the cleaner body 500. Specifically, the mop module 100 may be operated by receiving power from a battery (not shown) provided in the cleaner body 500.

[0051] The cleaner body 500 to which the mop module 100 is connected may include a suction motor (not shown), so that the suction power generated by the suction motor (not shown) can be applied to the mop module 100.

[0052] Accordingly, the mop module 100 may perform the role of sucking in foreign substances and air from the floor surface and guiding them to the cleaner body 500.

[0053] The connection pipe 180 may be connected to a backside center portion of the module housing 110 to guide the sucked air to the cleaner 1, but the embodiments of the present disclosure are not limited thereto.

[0054] To help understanding, the direction of this embodiment is defined as follows. The portion to which the connection pipe 180 is connected in the mop module 100 may be said to be the back (i.e., rear or backward) of the mop module 100 and the opposite portion thereof may be said to be the front (i.e., forward) of the mop module 100. The direction that connects the front and rear to each other may be called the front-back direction.

[0055] In addition, with respect to the view of looking at a suction port 113a from the connection pipe 180, the left side may be referred to as the left side of the mop module 100 and the right side as the right side of the mop module 100. The direction connecting the left side and the right side may be referred to as the left-right direction. The left-right direction may mean the direction perpendicular to each other on the forward-backward direction and the horizontal plane.

[0056] With respect to the state where the mop module 100 is placed on the floor surface, in other words, the state where the mop 150 placed on the floor surface is ready to clean it, the direction approaching the floor may be referred to as 'downward' or the lower side and the direction getting away from the floor may be referred to as upward or upper side.

[0057] The mop module 100 may further include a rotary cleaning part 140 rotatably provided under the module housing 110. For example, the rotary cleaning part 140 may be a rotary plate formed in the shape of a disk.

[0058] As one example, the rotary cleaning part 140 may be provided in a pair and arranged in the left-right direction. At this time, the pair of rotary cleaning parts 140 may be rotatable independently. For example, the rotary cleaning part 140 may include a first rotary cleaning part 141 and a second rotary part 142.

[0059] The rotary cleaning part 140 may be coupled to the mop 150. The mop 150 may be formed in the shape of a disk, for example. The mop 150 may include a pair configured of a first mop 151 and a second mop 152.

[0060] Since the mop 150 is in close contact with the floor surface due to the load of the mop module 100 in a state of placing the mop 150 on the floor, the frictional force between the mop 150 and the floor increases.

[0061] The module housing 110 may define the exterior of the mop module 100 and may have a suction port 113a formed to suck in air. For example, the suction port 113a may be formed in a front end of a lower surface of the module housing 110. The suction port 113a may extend in the left-right direction from the module housing 110.

[0062] The module housing 110 may include a lower housing 111, an upper housing 112 coupled to the top of the lower housing 111.

[0063] The lower housing 111 may have the rotary cleaning part 140 secured thereto and may define the exterior of the mop module 100.

[0064] The lower housing 111 may include a lower surface 111a to which the rotary cleaning part 140 is coupled. At this time, a bottom of the lower surface 111a may be arranged to face the floor when the mop module 100 is placed on the floor, and a moisture supply part 130, a heat generator 136 and a driving motor 170 may be provided on a top of the lower surface 111a.

[0065] The suction port 113a may be formed in the lower housing 111. Specifically, the suction hole 113a may be formed in the lower surface 111a of the lower housing 111. The suction port 113a means a space through which air containing dust can be introduced. With this configuration, when a suction motor (not shown) of the cleaner body 500 is operated, dust and air existing around the floor surface may be sucked into the path of the mop module 110 through the suction port 113a.

[0066] In the lower housing 111 may be provided a circuit board mounting portion on which a printed circuit board 190 configured to control the mop driving motor 170 is disposed. For example, the circuit board mounting portion may be formed in the shape of a hook extending upward from the lower housing 111.

[0067] Although not limited, the circuit board mounting portion may be positioned on one side of the lower housing 111. For example, the printed circuit board 190 may be disposed in a position adjacent to the operation part 192 that may be operated by the user. Accordingly, a switch mounted on the printed circuit board 190 may detect a user's manipulation of the operation part.

[0068] A diffuser 160 may be formed through the lower housing 111 accordingly, water or steam (water vapor) passing through the heat generator 136 and the diffuser 160 may be supplied to the mop 150.

[0069] Meanwhile, in the present invention, a drying path 163 may be formed on the bottom (lower surface) of the lower housing 111. Specifically, the bottom (lower surface) of the lower housing 111 may have a sunken center portion in the left-right direction. Then, the sunken space is arranged between a pair of rotary cleaning parts 140. In addition, the sunken space may be covered with the diffuser 160 to be described later.

[0070] Therefore, the bottom of the lower housing 111 is formed to be sunken, so that air can flow in the space (i.e., the drying path 163) formed between the bottom surface of the lower housing 111 and the diffuser 160.

[0071] Meanwhile, the bottom surface (lower surface) of the lower housing 111 may be formed with an incline. Specifically, the bottom surface (lower surface) of the lower housing 111 surrounding the drying path 163 may be formed as an inclined surface 111b having a predetermined angle or a predetermined curvature. At this time, the depth of the sunken bottom surface (lower surface) of the lower housing 111 may become smaller as it goes forward from the middle portion in the front-back direction of the drying path 163 to the front of the drying path 163. That is, the closer the drying path 163 gets to the suction port 113a, the narrower the gap between the module housing 110 and the diffuser housing 161.

[0072] Through this, the flow rate of air discharged through the drying path 163 may be increased. With this configuration, the flow rate of air discharged from the drying path 163 may be increased, thereby improving the drying effect on moisture.

[0073] Meanwhile, as shown in FIG. 6, in the present disclosure, a guide rib 111a configured to guide the flow of air flowing through the drying path 163 described later may be formed protruding on the bottom surface (lower surface) of the lower housing 111.

[0074] The guide rib 111a may be formed protruding on the inclined surface 111b. For example, the guide rib 111a may be formed in an arc shape having a predetermined curvature. In addition, the guide ribs 111a may be arranged in a pair symmetrically to each other.

[0075] The air flowing through the drying path 163 may be divided into three directions by the pair of guide ribs 111a. Among these, the air guided to the space between the pair of guide ribs 111a may be discharged toward the central portion 114a of the blocker 114 described later. Additionally, air guided into the space between the side wall of the drying filament 163 and the guide rib 111a on one side can be discharged toward the extension portion 114b of the blocker 114 to be described later.

[0076] The upper housing 112 may cover the upper side of the lower housing 111 and may form the outer shape of the mop module 100 of the present disclosure.

[0077] In addition, a suction path may be formed in the module housing 110 to communicate with the suction port 113a and guide air flowing in from the suction port 113a to the cleaner body 300.

[0078] The suction path may be arranged in the upper central portion of the lower housing 111, and the end may be connected to a connecting pipe 180.

[0079] Therefore, since the suction port 113a may be extended in a roughly straight shape in the forward and backward direction by arranging the suction path, the length of the suction port 113a may be minimized, so that the flow path loss in the mop module 100 can be minimized.

[0080] The front of the suction path may be communicated with the suction port 113a. The suction path may be arranged so that it slopes upward from the front end to the rear end. That is, the upper surface of the suction path may be inclined at a predetermined angle with the bottom surface. In addition, the upper surface of the suction path may be inclined at a predetermined angle with the bottom surface of the lower housing 111.

[0081] Therefore, the suction path may be formed so that the height of the front portion is lower than that of the rear part.

[0082] According to the present embodiment, since the height of the front portion of the suction path is low, there is an advantage in that the height of the front portion may be reduced among the entire height of the mop module 100. The lower the height of the mop module 100, the higher the possibility that it may be inserted into a narrow space under furniture or a chair and cleaned.

[0083] Meanwhile, in the present embodiment, the heat generator 136 may be arranged on the upper side of the suction path. With this configuration, the heat generator 136 may be stably supported while being positioned at a predetermined angle with the floor surface.

[0084] A blocker 114 is arranged on the bottom surface (lower surface of the bottom) of the lower housing 111. The blocker 114 may block moisture emitted from the mop 150 from spreading to the suction port 113a by blocking the front space where the suction port 113a is arranged and the rear space where the mop 150 is arranged.

[0085] 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 both ends based on the central portion 114a. In addition, the extension portion 114b may be provided in an arc shape to surround the circular mop 150.

[0086] Meanwhile, the blocker 114 of the present embodiment may be arranged behind the suction port 113a and ahead of the drying path 163. Specifically, the central portion 114a may be arranged behind the suction port 113a. And, the extension portion 114b may be arranged ahead of the moisture supply hole 162. In addition, the central portion 114a may be arranged ahead of the drying path 163.

[0087] That is, the suction port 113a may be arranged ahead of the blocker 114, and the moisture supply hole 162 and the drying path 163 may be arranged behind the blocker 114.

[0088] By this configuration, moisture discharged from the moisture supply hole 162 may be blocked from flowing toward the suction port 113a by the blocker 114. And, air passing through the drying path 163 can be introduced into the blocker 114.

[0089] Therefore, moisture whose flow is blocked by the blocker 114 or moisture condensed in the blocker 114 may be dried by air discharged from the drying path 163.

[0090] As a result, moisture can be dried in a state where the blocker 114 blocks dust flowing into the suction port 113a and moisture discharged from the moisture supply hole 162 from mixing.

[0091] A plurality of rollers may be provided on the lower surface 111a of the lower housing 111 to facilitate the smooth movement of the mop module 100.

[0092] As one example, a front roller 115 may be provided in front of the 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 15a and the second roller 115b may be spaced a preset distance apart from each other in the left-right direction.

[0093] The first roller 115a and the second roller 115b may be rotatably connected to shafts, respectively. Each shaft may be secured to a lower portion of the lower housing 111 in a state where it extended in the left-right direction.

[0094] The distance between the shaft and the front end of the lower housing 111 is greater than the minimum distance between the mop 150 and the front end of the lower housing.

[0095] As one example, at least predetermined portion of the rotary cleaning part 140 may be provided between the shaft of the first roller 115a and the shaft of the second roller 115b.

[0096] With this arrangement, the rotary cleaning part 140 may be positioned as close as possible to the suction port 113a, and the area cleaned by the rotary cleaning part 140 among the floor surface area where the mop module 100 is positioned may be increased, thereby improving floor cleaning performance.

[0097] In this embodiment, the first roller 115a and the second roller 115b may be coupled to the lower portion of the lower housing 111, thereby improving the mobility of the mop module 100.

[0098] The lower housing 111 may further include a third roller 116. Accordingly, the first roller 115a and the second roller 115b may 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.

[0099] A cool air inlet hole (not shown) may be formed in the lower housing 111 according to one embodiment. Outside air may be introduced into the module housing 110 through the cool air inlet hole 117. Or, the cool air inlet hole 117 may be formed in a front lateral wall of the lower housing 111. With this configuration, when the user operates to move the mop module 100 forward, the air intake amount may increase.

[0100] A cool air outlet hole (not shown) may be formed in the upper housing 112. Air inside the module housing 110 may be discharged to the outside through the cool air outlet hole (not shown). Or, the cool air outlet hole 118 may be formed in each of the two lateral surfaces of the upper housing 112. With this configuration, while the air introduced through the cool air inlet hole (not shown) is flowing to the cool air outlet hole (not shown), there is an advantage in that the air can be induced to pass through the driving motor 170 and overheating of the driving motor 170 may be prevented.

[0101] With respect to the state where the lower housing 111 is placed on the floor surface, the cool air outlet hole (not shown) may be positioned farther from the floor than the cool air inlet hole (not shown). With this configuration, the air heated inside the module housing 110 may rise to be effectively discharged through the cool air outlet hole (not shown).

[0102] The mop module 100 may further include a water tank 120 to supply moisture to the mop 150.

[0103] The water tank 120 may be detachably connected to the module housing 110. Specifically, the water tank 120 may be coupled to an upper portion of the upper housing 112. For example, the water tank 120 may be secured to a water tank securing portion formed on an upper surface of the upper housing 112.

[0104] In addition, the water tank 120 may be disposed above the heat generator 200. Specifically, the water tank 120 may be disposed above the heat generator 200, spaced apart therefrom. That is, the water tank 120 may be disposed above the heat generator 200 with the upper housing 112 in between.

[0105] In the state where the water tank 120 is secured to the module housing 110, the water tank 120 may define the exterior appearance of the mop module 100.

[0106] An entire upper wall of the water tank 120 may substantially define the upper surface of the mop module 100. Accordingly, the user can visually check whether the water tank 120 is mounted in the module housing 110.

[0107] The module housing 110 may further include a water tank separation button operated to separate the water tank 120, in the state where the water tank 120 is secured to the module housing 110. For example, the water tank separation button may be disposed at the center of the mop module 100. Accordingly, the user can easily recognize and operate the water tank separation button.

[0108] In the state where the water tank 120 is secured to the module housing 110, water from the water tank 120 may be supplied to the mop 150. Specifically, water stored in the water tank 120 may be supplied to the mop 150 through a moisture supply part 130.

[0109] More specifically, the water tank 120 may have a space that store water. Water stored in the water tank 120 may be supplied to the heat generator 136 through at least one hose. Water introduced to the heat generator 136 may be heated and may also be converted into steam (i.e., water vapor), depending on the user's choice. Water or steam heated in the heat generator 136 may be supplied to the mop 150 through the diffuser 160.

[0110] The water tank 120 may include a water supply hole. The water supply hole is a hole through which water is introduced into the water tank. For example, the water supply hole may be formed on a lateral surface of the water tank 120.

[0111] The water tank 120 may include water discharge hole. The water discharge hole is a hole through which water stored in the water tank 120 is discharged. Water discharged from the water discharge hole may flow into the heat generator 200. The water discharge hole may be formed on a lower surface of the water tank 120.

[0112] The water tank 120 may include an air hole. The air hole is a hole through which air is introduced into the water tank 120. When water stored in the water tank 120 is discharged to the outside, the pressure inside the water tank 120 decreases and air may flow into the water tank 120 through the air hole to compensate for the decreased pressure. For example, the air hole may be formed on an upper end of the water tank 120.

[0113] The mop module 100 according to the present disclosure may include a moisture supply part 130 in which a path supplying water introduced from the water tank 120 to the mop 150 is formed.

[0114] Specifically, the moisture supply part 130 may include a water tank connecting portion 131 that introduces water from the water tank 120 into the module housing 110; a water inlet pipe 132 that supplies water introduced into the water tank connecting portion 131 to a water pump 133; a guide pipe 134 that supplies water from the water pump 133 to a connector; and a water supply pipe 135 that supplies water introduced into the connector to the heat generator 136.

[0115] The water tank connecting portion 131 may put a valve (not shown) provided in the water tank 120 into operation, so that water can flow.

[0116] The water tank connecting portion 131 may be coupled to a lower area of the upper housing 112, and a predetermined area of the water tank connecting portion 131 may protrude upward through the upper housing 112.

[0117] When the water tank 120 is mounted in the upper housing 112, the water tank connecting portion 131 protruding upward may pass through the outlet hole of the water tank 120 and then be introduced into the water tank 120.

[0118] The upper housing 112 may include a sealer that prevents water discharged from the water tank 120 from leaking around the water tank connecting portion 131. For example, the sealer may be made of rubber and may be coupled to the upper housing 112, on the upper area of the upper housing 112.

[0119] A water pump 133 configured to control water discharged from the water tank 120 may be installed in the upper housing 112.

[0120] The water pump 133 may provide water flow force. 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, the first connection port may be an inlet and the second connection port may be an outlet, with respect to the water pump 133.

[0121] The water pump 133 is a pump that operates to facilitate communication between the first connection port and the second connection port, while expanding or contracting as the internal valve operates, which can be implemented by the well-known structure and detailed description thereof will be omitted.

[0122] The water supply pipe 135 may connect the connector and the water inlet hole of the heat generator 136 to each other. For example, the water supply pipe 135 may be a pair of pipes branching from the above connector.

[0123] Accordingly, after water supplied to the water inlet pipe 132 is introduced into the water pump 133, water may flow to the guide pipe 134. Water flowing into the guide pipe 134 may be flowed to the water supply pipe 135 by the connector. Then, water flowed into the water supply pipe 135 may be supplied to the heat generator 136.

[0124] The heat generator 136 is a device that heats water. The heat generator 136 may be disposed inside the module housing 110. Specifically, the heat generator 200 may be installed on the upper surface of the lower housing 111.

[0125] Meanwhile, the heat generator 136 according to the present disclosure may be inclinedly disposed. Specifically, with respect to the state where the module housing 110 is placed on the floor surface, the lower surface of the heat generator 136 may be disposed to form a predetermined angle (α) with the floor surface.

[0126] The specific structure and effect of the heat generator 200 according to the present disclosure will be described later.

[0127] The diffuser 160 may be configured to discharge water from the water tank 120 to the mop 150.

[0128] Specifically, the diffuser 160 may include at least moisture supply hole 320, and may supply moisture discharged from the heat generator 136 through the at least one moisture supply hole 320 to the mop 150.

[0129] The diffuser 160 may be accommodated in a space formed in the module housing 110, and a certain area of the diffuser 160 may pass through a nozzle hole (not shown) formed in the module housing 110 and exposed to the outside of the module housing 110.

[0130] A pair of diffusers 160 may be secured to the module housing 110 and arranged in the left-right direction. In addition, the pair of diffusers 160 arranged in the left-right direction may be formed in a symmetrical shape (i.e., mirror image) to each other.

[0131] The diffuser 160 may be connected to the heat generator 136 to supply moisture flowing in the heat generator 136 to the mop 150.

[0132] The detailed structure and effect of the diffuser 160 will be described later.

[0133] The rotary cleaning part 140 may be rotatable by power supplied from a driving motor 170. For example, the rotary cleaning part 140 may be a rotary plate. The rotary cleaning part 140 may be formed in a circular disc shape, and the mop 150 may be attached to a lower surface of the rotary cleaning part 140.

[0134] At this time, the rotary cleaning part 140 may be placed parallel to the floor surface while the mop module 100 is placed on the floor surface. Or, the circular-shaped rotary cleaning part 140 may be disposed parallel to the lower surface 111a of the lower housing 111.

[0135] The rotary cleaning part 140 may be positioned in the rear of the suction port 113a under the module housing 110 as one example.

[0136] Accordingly, when the user moves the mop module 100 forward and cleans, foreign substances and air on the floor surface may be sucked in the suction port 113a and then the floor surface may be wiped by the mop 150.

[0137] At least one rotary cleaning part 140 may be provided under the module housing 110. For example, the rotary cleaning part 140 may include a first rotary cleaning part 141 connected to a first driving motor 171 and having a first mop 151 attached thereto, and a second rotary cleaning part 142 connected to a second driving motor 172 and having a second mop 152 attached thereto.

[0138] Specifically, the rotary cleaning part 140 may include an outer body having a circular-ring shape; an inner body provided in a center area of the outer body, spaced apart from an inner circumferential surface of the outer body; and a plurality of connection ribs connecting an outer circumferential surface of the inner body and an inner circumferential surface of the outer body to each other.

[0139] Meanwhile, the rotary cleaning part 140 may include means for attaching the mop 150. As one example, the attaching means may be Velcro.

[0140] The rotary cleaning part 140 may be disposed under the lower housing 111. That is, the rotary cleaning part 140 may be disposed outside the module housing 110.

[0141] In addition, the rotary cleaning part 140 may be connected to the driving motor 170 to be supplied power. For example, the rotary cleaning pat 140 may be connected to the driving motor 170 via at least one gear, and may be rotated by the operation of the driving motor 170.

[0142] The rotary cleaning part 140 may include a first rotary cleaning part 141 and a second rotary cleaning part 142. For example, with respect to the suction port 113a while the mop module 100 is placed on the floor surface, the first rotary cleaning part 141 may mean the rotary cleaning part disposed on the left and the second rotary cleaning part 142 may mean the rotary cleaning part 140 disposed on the right. However, the present disclosure is not limited thereto and the left and right may be switched.

[0143] In this embodiment, the rotation center of the first rotary cleaning part 141 and the rotation center of the second rotary cleaning part 142 may be spaced apart in the left-right direction.

[0144] That is, the rotation centers P1 and P2 of the rotary cleaning part 140 may be arranged symmetrically with respect to the center line that dissects the left and right lengths of the module housing 110.

[0145] In addition, the rotation centers P1 and P2 of the rotary cleaning part 140 may be positioned farther 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 cleaning part 140 from blocking the suction port 113a.

[0146] The distance between the rotation center of the first rotary cleaning part 141 and the rotation center of the second rotary cleaning part 142 may be greater than the diameter of the mop 150. This is to reduce mutual friction caused by interference between the first mop 151 and the second mop 152 while they are rotating, and to prevent the cleanable area from being reduced as much as the amount of the interference.

[0147] The mop 150 may clean the floor surface by rotating motion.

[0148] The mop 150 may be coupled to the lower surface of the rotary cleaning part 140 to face the floor surface.

[0149] The mop 150 may have a lower surface facing the floor and the lower surface has a predetermined area. The mop 150 may be formed in a flat shape. The mop 150 may be formed to have the horizontal width (or diameter) sufficiently larger than the vertical height. When the mop 150 is coupled to the lower housing 111, the lower surface of the mop 150 may be parallel to the floor surface.

[0150] The lower 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 attached to or detached from the lower surface of the rotary cleaning part 140, and may be coupled to the rotary cleaning part 140 to rotate together with the rotary cleaning part 140.

[0151] While the rotary cleaning part 140 and the mop 150 are coupled to the lower surface of the module housing 110, a certain area of the mop 150 may protrude outward to the outside of the mop module 100 so that not only the floor surface located under the mop module 100 but also the floor surface located outside the mop module 100 can be cleaned.

[0152] As one example, the mop 150 may protrude not only to both sides but also the rear side of the mop module 100.

[0153] The mop 150 may include a first mop 151 coupled to the first rotary cleaning part 151 and a second mop 152 coupled to the second rotary cleaning part 142. Accordingly, when the first rotary cleaning part 141 is rotated by the power transferred from the first driving motor 171, the first mop 151 may be rotated together. When the second rotary cleaning part 142 is rotated by the power transferred from the second driving motor 172, the second mop 152 may be rotated together.

[0154] Meanwhile, the mop module 100 may further include a mop driving motor 170 that provides power to rotate the mop 150 and the rotary cleaning part 140.

[0155] Specifically, the mop driving motor 170 may include a first mop driving motor 171 that rotates the first rotary cleaning part 141 and a second mop driving motor 172 that rotates the second rotary cleaning part 142.

[0156] In this way, since the first mop driving motor 171 and the second mop driving motor 172 operate individually, there is an advantage in that even if one of the first mop driving motor 171 and the second mop driving motor 172 breaks down, the rotary cleaning part 140 may be rotated by the other one.

[0157] Meanwhile, the first mop driving motor 171 and the second mop driving motor 172 may be arranged spaced apart from each other in the left-right direction in the module housing 110. And, the first mop driving motor 171 and the second mop driving motor 172 may be positioned at the rear of the suction port 113a.

[0158] The mop driving motor 170 may be positioned within the module housing 110. For example, the mop driving motor 170 may be mounted on the upper side of the lower housing 111 and covered by the upper housing 112. That is, the mop driving motor 170 may be positioned between the lower housing 111 and the upper housing 112.

[0159] Meanwhile, the mop module 100 may include a connection pipe 180 coupled to the cleaner body 300 or the extension pipe 200.

[0160] The connection pipe 180 may include a first connection pipe connected to one end of the path part, a second connection pipe rotatably connected to the first connection pipe, and a guide pipe making the inside of the first connection pipe and the inside of the second connection pipe in communication with each other.

[0161] The first connection pipe may be formed in a tube shape, and one axial end may be connected to an end of the flow path and the other axial end may be rotatably connected to the second connection pipe. At this time, a predetermined area of the first connection pipe may be cut away, and the cut area may be positioned upward, facing the second connection pipe. With this configuration, while the mop module 100 is placed on the floor, the angle formed between the second connection pipe and the floor can be changed based on the movement of the user's arm. That is, the first connection pipe and the second connection pipe may serve as a kind of joint that can adjust the angle of the mop module 100 and the cleaner body 300.

[0162] The second connection pipe may be formed in a tube shape and one axial end may be rotatably connected to the first connection pipe and the other axial end may have the cleaner body 300 or the extension pipe 200 inserted therein so that it can be detachably connected to the other axial end.

[0163] Meanwhile, according to one embodiment, an auxiliary battery housing 400 for accommodating an auxiliary battery 500 may be coupled to the second connection pipe.

[0164] Wires may be embedded in the first connection pipe and the second connection pipe, and the wires embedded in the first connection pipe and the second connection pipe may be electrically connected to each other.

[0165] Meanwhile, the guide pipe may connect the inner space of the first connection and the inner space of the second connection to each other. A flow path may be formed in the guide pipe so that air sucked from the mop module 100 can flow into the extension pipe 200 and / or the cleaner body 300. At this time, the guide pipe may be deformed based on the rotation of the first connection pipe and the rotation of the second connection pipe. As one example, the guide pipe may be formed in a shape of a corrugated tube.

[0166] Meanwhile, the mop module 100 may include a printed circuit board 190 on which a mop module control part 800 for controlling the mop module is disposed configured to control the mop module 100. Current may be applied to the printed circuit board 190 and communication lines may be disposed on the printed circuit board 190.at this time, the printed circuit board 190 may be cooled by the air discharged from the cool air outlet hole (not shown) after introduced into the cool air inlet hole (not shown).

[0167] Meanwhile, the module housing 110 may further include a first operation part (not shown) configured to adjust the amount of water discharged from the water tank 120. As one example, the first operation part (not shown) may be positioned behind the module housing 110.

[0168] The first operation part (not shown) may be manipulated by the user and water can be discharged from the water tank 120 or prevented from being discharged by the operation of the operation part (not shown).

[0169] Or, the amount of water discharged from the water tank 120 may be adjusted by the first operation part (not shown). For example, as the user manipulates the first operation part (not shown), a first amount of water may be discharged per unit time from the water tank 120 or a second amount of water greater than the first amount may be discharged per unit time.

[0170] The first operation part (not shown) may be configured to pivot left and right in the module housing 110, or may be configured to pivot up and down according to one embodiment.

[0171] For example, when the first operation part (not shown) is positioned in a neutral position, the water discharge amount may be zero, and when the left side of the first operation part (not shown) is pushed to pivot to the left, the first amount of water may be discharged per unit time from the water tank 120. When the first operation part (not shown) is pushed to pivot to the right, the second amount of water may be discharged per unit time from the water tank 120.

[0172] Meanwhile, the module housing 110 may further include a second operation part (not shown) configured to adjust the phase of moisture discharged from the heat generator 136. For example, the second operation part (not shown) may be disposed behind the module housing 110.

[0173] The second operation part (not shown) may be manipulated by the user. By the manipulating of the second operation part (not shown), water may be discharged to the mop 150 or steam may be discharged from the heat generator 136.

[0174] The second operation part (not shown) may be rotatably provided in the module housing 110. For example, the second operation part (not shown) may be a rotary knob (dial).

[0175] For example, while the second operation part (not shown) is rotated and positioned at a first position, the heat generator 136 may not heat water and water at room temperature may be discharged to the mop 150. In addition, while the second operation part (not shown) is rotated and positioned at a second position different from the first position, the heat generator 136 may heat water and discharge the heated water to the mop 150. While the second operation part (not shown) is rotated and positioned at a third position different from the second position, the heat generator 136 may heat water and phase-change heated water to steam (i.e., vapor), then discharge steam to the mop 150.

[0176] The heat generator 126 may heat water and generate high-temperature water or steam (water vapor). The heat generator 136 may heat the water supplied from the water tank 120 and supply the heated water to the mop 150.

[0177] The heat generator 200 may be provided in the mop module 100, not in the cleaner body 300. This is to prevent the cleaning from becoming inconvenient due to the weight and volume of the heat generator 136 if the heat generator 136 is provided in the mop module 100.

[0178] The heat generator 136 may be coupled to the top of the lower housing 111 (i.e., the top surface of the lower surface 111a). For example, the heat generator 136 may be coupled to an upper surface of the suction path. At this time, the suction path is coupled to an upper surface center of the lower housing 111, so that the heat generator 136 may also be disposed in the center portion of the lower housing 111.

[0179] With this configuration, when the heat generator 136 is operated, a specific location may not be overheated by the heat supplied from the heat generator 136, thereby causing an effect of preventing damage of the mop module 100. In addition, the overall volume of the mop module 100 may be minimized.

[0180] The heat generator 136 may include a heating chamber, a heater, a lower cover, a sealer, an upper cover, a lower insulator, an upper insulator, an overheat circuit breaker, and a temperature detector.

[0181] At this time, the heater may be disposed under the heating chamber and the lower insulator may be provided under the heater. The lower cover may be disposed under the lower insulator. In addition, the sealer may be disposed above the heating chamber, the upper insulator may be disposed above the sealer, and the upper cover may be disposed above the upper insulator, thereby covering an upper portion of the heat generator. Meanwhile, the overheat circuit breaker and the temperature detector may be disposed outside the heating chamber.

[0182] A path through which moisture flows may be formed within the heating chamber, and the heating chamber may provide a space in which the moisture flowing through the path is heated.

[0183] Specifically, the heating chamber may include a chamber body 211, a water inlet hole and a moisture outlet hole.

[0184] The chamber body may provide a space in which moisture can flow. For example, the chamber body may be formed in a shape similar to a square box. For example, the chamber body may have a square plate-shaped lower surface formed at the lowest side, and four lateral walls formed perpendicular to the lower surface and thereto. A top of the chamber body may be open. Accordingly, the inside of the chamber body may be said to be a space surrounded by the lower surface and the four lateral walls.

[0185] Meanwhile, the inner space of the chamber body may be separated by a partition wall. For example, the chamber body may have a left chamber and a right chamber with respect to the partition wall.

[0186] Meanwhile, the water inlet hole and the moisture outlet hole may be formed in the chamber body. Specifically, the water inlet hole and the moisture outlet hole may be formed in the lower surface of the chamber body. At this time, it is preferred that the water inlet hole and the moisture outlet hole are disposed furthest away from each other in the front-back direction of the mop module 100. This is to secure sufficient heating time by maximizing the distance that the water introduced into the water inlet hole flows until it is discharged from the moisture outlet hole.

[0187] For example, a rear end of the chamber body may be disposed higher than a front end of the chamber body. That is, the heat generator 136 may have a rearward-upward slope. Accordingly, water may be heated while flowing from a rear upper portion to a front lower portion inside the heat generator 136.

[0188] The water inlet hole may be formed in the chamber body and water may be introduced from the water tank 120. The water inlet hole may be a hole formed at an entrance end of the chamber body.

[0189] Specifically, a water supply pipe 135 of the water supply part 130 may be connected to the water inlet hole. For example, the water supply pipe 135 may be coupled to a lower portion of the chamber body, and the inside of the water supply pipe 135 and the water inlet hole may be in communication with each other. Accordingly, once the water pump 133 is put into operation, the water stored in the water tank 120 may flow through the water supply pipe 135 and then flow into the chamber body by the fluid force generated from the water pump 133.

[0190] The moisture outlet hole may discharge the moisture heated in the chamber body. The moisture outlet hole may be a hole formed in an exit end of the chamber body.

[0191] Specifically, the diffuser 160 may be connected to the moisture outlet hole 213. For example, the diffuser 160 may be coupled to the lower portion of the chamber body, and a path inside the diffuser 160 and the moisture outlet hole may be in communication with each other. Accordingly, the moisture (i.e., water or steam) heated inside the chamber body may pass through the moisture outlet hole and flow into the diffuser 160, to be supplied to the mop 150.

[0192] Meanwhile, in a state where the mop module 100 is placed on the floor surface (a state where the mop 150 is placed on the floor surface to be able to wipe the floor surface), the bottom surface of the chamber body may be arranged to be inclined at a predetermined angle (α) with the floor surface.

[0193] The bottom surface of the lower housing 111 to which the rotary cleaning part 140 and the mop 150 are coupled on the lower side and the bottom surface of the chamber body may be arranged to be inclined at a predetermined angle (α). That is, the virtual extension surface of the bottom surface of the chamber body may intersect with the virtual extension surface of the bottom surface of the lower housing 111.

[0194] In addition, the height from the bottom surface to the water inlet hole may be higher than the height from the bottom surface to the moisture outlet hole. Also, the distance from the bottom surface of the lower housing 111 to the water inlet may be greater than the distance from the bottom surface to the moisture outlet hole.

[0195] With this configuration, water flowing into the water inlet hole may be heated and moved upwardly by convection, and may be heated by flowing from the upper part to the lower part of the chamber body by gravity.

[0196] Furthermore, even if water heated inside the chamber body changes into vapor and rises, it may remain inside the chamber body and be additionally heated without being discharged to the upper part of the chamber body.

[0197] The partition wall of the heating chamber may protrude upward from the lower surface of the chamber body along the front-back direction of the mop module 100. With this configuration, the partition wall may separate the inner space of the chamber body into left and right spaces. Accordingly, the inner space of the chamber body may be heated independently on the left and right sides.

[0198] In addition, at least one wall may be formed within the heating chamber to guide moisture flow. For example, the flow path within the chamber body may be formed in a zigzag shape. As a result, the flow path of water flowing inside the chamber body may be increased and sufficient time for heating the water therein may be secured. In addition, there is an effect of increasing the area where heat can be transferred to the water flowing inside the chamber body, and there is another effect of maintaining the flow direction of water even if the heat generator 136 shakes, thereby maintaining the supply amount of water or steam.

[0199] The heater may be configured to generate heat. The heater may be a device configured to convert electrical energy into thermal energy, and may be implemented by a well-known structure, thereby omitting detailed description thereof.

[0200] The heater may be provided under the heating chamber, and configured to supply heat to the heating chamber. Specifically, the heater may be in contact with the lower surface of the heating chamber. Accordingly, when heat is generated in the heater, the heating chamber in contact with the heater may be heated by convection. Then, the heater may be supplied power from a battery and / or an auxiliary battery 500 provided in the cleaner body 300 to heat water flowing inside the heating chamber.

[0201] Meanwhile, the heater may control the temperature of water based on the user's input. In addition, the heater may change the phase of the water into steam (i.e., water vapor) based on the user's input.

[0202] Here, in this embodiment, the heater may be provided in plural. The plurality of heaters may be disposed symmetrically.

[0203] The lower cover may be disposed under the heater and the lower insulator, and configured to cover them. For example, the lower cover may be formed in a flat shape but in a shape that can surround the heater and the lower insulator. The lower cover may be made of a material capable of blocking the heat generated from the heater.

[0204] With this configuration, the heat generated form the heater may be prevented from escaping to the outside of the heat generator 136, thereby improving energy efficiency. In addition, it is possible to prevent damage to the components disposed within the module housing 110 due to the heat generated from the heater.

[0205] The sealer may be provided in an upper portion of the heating chamber and configured to seal the upper portion. Specifically, the sealer may seal the open top of the chamber body. The sealer may be made of a material capable of blocking the passage of moisture. With this configuration, even if water vapor generated in the heating chamber rises, the water vapor may be blocked by the sealer and prevented from leaking to the outside.

[0206] The upper cover may be disposed above the sealer and the upper insulator, and configured to cover them. For example, the upper cover may be formed in a flat shape, but in a shape that can surround the sealer and the upper insulator. The upper cover may be made of a material that can block heat transferred through the sealer.

[0207] With this configuration, the heat generated in the heater may be prevented from leaking to the outside of the heat generator 136, thereby improving energy efficiency. In addition, it is possible to prevent damage to the component provided within the module housing due to the heat generated in the heater.

[0208] The lower insulator may be disposed between the heater and the lower cover, and configured to block heat transferred from the heater. The lower insulator may be formed to have a wider area than the heater. For example, the lower insulator may be formed in a flat shape and made of a material capable of blocking heat transfer.

[0209] With this configuration, it is possible to prevent the heat generated in the heater from leaking to the outside of the heat generator 136, thereby improving energy efficiency. In addition, it is possible to prevent damage to the components provided within the module housing 110 due to the heat generated in the heater. Especially, in this embodiment, the heat generated in the heater may be double-blocked by the lower insulator and the lower cover, so that the effects of the energy efficiency improvement and the damage to the component may be maximized.

[0210] The upper insulator may be disposed above the sealer, and configured to block heat transferred from the heating chamber. The upper insulator may be formed to have a wider area than the sealer. For example, the upper insulator may be formed in a flat shape and made of a material capable of blocking heat transfer.

[0211] With this configuration, it is possible to prevent the heat of the heating chamber heated by the heater from leaking to the outside of the heat generator 136, thereby improving energy efficiency. In addition, it is possible to prevent damage to the components provided within the module housing 110 due to the heat that has leaked to the outside of the heat generator 136 from the heating chamber. Especially, in this embodiment, the heat of the heating chamber may be double-blocked by the upper insulator and the upper cover, so that the effects of the energy efficiency improvement and the damage to the component may be maximized

[0212] The overheat circuit breaker may be disposed on a lateral surface of the heating chamber, and it may cut off the power supplied to the heater when the temperature of the heating chamber is higher than a predetermined reference temperature Tr.

[0213] The overheat circuit breaker may be disposed within the heating chamber. Specifically, the overheat circuit breaker may be disposed on an outer lateral surface of the heating chamber.

[0214] The overheat circuit breaker may be provided in a position where heat is concentrated within the heating chamber. The overheat circuit breaker may cut off power supplied to the heater, when the temperature of the heating chamber is higher than a predetermined reference temperature Tr.

[0215] The overheat circuit breaker may be a device configured to block the connection of a circuit when overheating occurs. For example, the overheat circuit breaker may be a thermal protector. A thermal protector may be a device that uses a bi-metal to automatically disconnect the circuit when overheating occurs. In addition, the overheat circuit breaker may include any means for disconnecting the circuit when overheating occurs.

[0216] The temperature detector may be configured to detect the temperature of the heat generator 136.

[0217] The temperature detector may be disposed on a lateral surface of the heating chamber. Specifically, the temperature detector may be disposed on an outer lateral surface of the heating chamber.

[0218] The temperature detector may measure the temperature of the heating chamber 210. For example, the temperature detector 290 may be a thermistor.

[0219] The diffuser 300 may be connected to the heat generator 200, and configured to discharge moisture introduced from the heat generator 200 to the mop 160.

[0220] A pair of diffusers 160 may be mounted in the module housing 110 and arranged in the left-right direction. The pair of diffusers 160 arranged in the left-right direction may be formed to be symmetrical to each other (i.e., mirror image).

[0221] Th diffuser 160 may be disposed under the heat generator 136, and coupled to a moisture outlet hole of the heat generator 136.

[0222] The diffuser 160 may include a diffuser housing 161 and a moisture supply hole 162.

[0223] The diffuser housing 161 may provide a space in which moisture can flow. The inner space of the diffuser housing 161 may be in communication with the inner space of the heat generator 136.

[0224] The diffuser housing 161 may be formed along a circumferential direction on a predetermined origin. For example, when looking at the lower surface of the mop module 100, the lower surface of the diffuser housing 161 may be formed in an arc shape with the rotation center of the pair of rotary cleaning parts 140 as the origin.

[0225] At this time, the diffuser housing 161 may be formed in an arc shape having a predetermined width. For example, the inner diameter of the diffuser housing 161 is equal to or larger than the radius of the rotary cleaning part 140. In addition, the outer diameter of the diffuser housing 161 is smaller than half the distance between the rotation centers of the pair of rotary cleaning parts 140. With this configuration, the diffuser housing 161 may be disposed between the pair of rotary cleaning parts 140.

[0226] The diffuser housing 161 may be configured of a lower surface, and a lateral wall protruding upward from the lower surface to surround the lower surface. Accordingly, the diffuser housing 161 may have an inner space in which moisture can flow. The lower surface of the diffuser housing 161 may define the exterior of the mop module 100, together with the lower housing 111. The lower surface of the diffuser housing 161 may be disposed on the lower housing 111 and between the rotation centers of the pair of the rotary cleaning parts 140.

[0227] The moisture supply hole 162 may be formed in the diffuser housing 161, and configured to discharge the moisture heated in the heat generator 136 there through. Specifically, the moisture supply hole 162 may be formed on the lower surface of the diffuser housing 161, and configured to discharge moisture (i.e., water or water vapor) flowing inside the diffuser housing 161 to the outside therethrough.

[0228] At this time, the moisture supply hole 162 may be disposed spaced a preset distance apart from the rotation centers of the rotary cleaning parts 140. Specifically, the distance from the rotation centers to the moisture supply hole 162 may be greater than the radius the rotary cleaning part 140.

[0229] In addition, the distance from the rotation centers to the moisture supply hole 162 may be smaller than the radius of the mop 150.

[0230] With this configuration, the moisture discharged through the moisture supply hole 162 may be supplied to the mop 150, not blocked by the rotary cleaning part 140.

[0231] Meanwhile, the mop module 100 of the present disclosure may be arranged so that the distance between the heat generator 136 and the moisture supply hole 162 can become narrow.

[0232] That is, the moisture outlet hole of the heat generator 136 may be connected to the moisture inlet pipe of the diffuser 160, and the moisture supply hole 162 of the diffuser 160 may be disposed close to the moisture outlet hole of the heat generator 136.

[0233] With this configuration, the moisture introduced from the heat generator 136 may quickly pass through the diffuser to be discharged through the moisture supply hole 162. Accordingly, the steam or high-temperature water generated in the heat generator 136 may be supplied to the mop 150, with minimized heat loss.

[0234] At least one moisture supply hole 162 may be formed along a circumferential direction. Specifically, the moisture supply hole 162 may be formed along the circumferential direction on a predetermined origin.

[0235] Here, as it spreads along the mop 150, the moisture supplied to the mop 150 may be supplied to the entire area of the mop 150 and heat containing moisture may raise the temperature of the mop 150.

[0236] Furthermore, when the mop 150 is rotated together with the mop module 100, much moisture may be moved to the outer portion of the mop 150 with respect to the radial direction by the centrifugal force. Accordingly, the radially outer portion of the mop 150 may maintain a high moisture content and a high temperature.

[0237] The rotating mop 150 may have a greater torque as it moves radially outward from the center of rotation.

[0238] That is, according to the present disclosure, the radially outer portion of the mop 150 may have high moisture, high heat and large torque. Accordingly, the present disclosure may have an effect of maximizing the cleaning efficiency of the mop 150.

[0239] The moisture supply hole 162 may be formed in a long hole shape along the circumference with the rotation center of the rotary cleaning unit (140) as the origin.

[0240] With this configuration, the moisture discharged from the plurality of moisture supply holes 162 may be supplied to a constant radial position of the rotating mop 150.

[0241] Meanwhile, depending on the embodiment, the moisture supply hole 162 may be formed with different radial widths.

[0242] As an example, the moisture supply hole 162 may be formed in a long hole shape along the circumference with the rotation center of the rotary cleaning part 140 as the origin, but the radial width may be formed to gradually widen from the front to the rear of the mop module.

[0243] As another example, the moisture supply hole 162 may be formed in a long hole shape along a circumference with the rotation center of the rotary cleaning part 140 as the origin, but the radial width may be formed to gradually widen from the outer side to the inner side in the left and right directions of the mop module.

[0244] As another example, the moisture supply hole 162 may be formed in a long hole shape along a circumference with the rotation center of the rotary cleaning part 140 as the origin, but the radial width may be formed to gradually widen along the rotation direction of the rotary cleaning part 140.

[0245] With this configuration, even if a drain is located on the moisture supply hole 162, at least a portion of the moisture supply hole 162 may be opened so that gas may pass through. Therefore, steam may be discharged through the open space, and at least a portion of the drain may be discharged together by the hydraulic pressure of the steam, thereby reducing the difference in the hydraulic pressure and flow rate of the discharged steam.

[0246] Furthermore, in this embodiment, by forming the width of the moisture supply hole 162 differently, there is an effect in which a small-sized drain can be quickly discharged through a portion of the moisture supply hole 162 with a large width.

[0247] Meanwhile, the diffuser 160 may further include a gasket 164. The gasket 164 may be connected to the diffuser housing 1310. For example, the gasket 164 may be integrally formed with the diffuser housing 161.

[0248] The gasket 164 may be formed of a material that can block passage of moisture.

[0249] The gasket 164 may be connected to the diffuser housing 161, and specifically, it may be formed in a ring shape. Accordingly, looking at the lower surface of the module housing 110, the gasket 164 and the diffuser housing 161 may be exposed in a ring shape.

[0250] With this configuration, there is an effect of blocking the moisture scattering as the mop 150 rotates from flowing into the module housing 110.

[0251] Meanwhile, the diffuser housing 161 may further include a connecting portion 165. The connecting portion 165 may connect the pair of diffuser housings 161 and the pair of gaskets 164 that are symmetrically arranged to each other. For example, the connecting portion 165 may be formed in a plate shape that connects the pair of diffuser housings 161.

[0252] In addition, the connecting portion 165 may be coupled to the lower housing 111. Specifically, the connecting portion 165 may be coupled to the bottom surface of the lower housing 111.

[0253] With this configuration, the diffuser 160 and the module housing 110 may be easily coupled. Furthermore, the diffuser 160 and the module housing 110 may be easily disassembled, and the diffuser 160 may be easily cleaned.

[0254] Meanwhile, in the present disclosure, a space may be formed between the connecting portion 165 and the bottom surface of the lower housing 110. And air may flow in the space. That is, a path through which external air outside the mop module 100 may flow may be formed between the diffuser housing 161 and the bottom surface of the lower housing 110.

[0255] At this time, the external air may be referred to as dry air having a low humidity compared to the air around the moisture supply hole 162, and the path may be referred to as a drying path 163 through which the dry air flows.

[0256] Therefore, a drying path 163 through which air having a relatively low humidity flows may be formed between the diffuser housing 161 and the bottom surface of the lower housing 110.

[0257] The drying path 163 includes a dry air discharge hole 163a and a dry air suction hole 163b. The dry air discharge hole 163a and the dry air suction hole 163b may be formed at both ends of the drying path 163.

[0258] For example, the dry air discharge hole 163a may be formed at the front end of the drying path 163, and the dry air suction hole 163b may be formed at the rear end of the drying path 163. That is, the dry air discharge hole 163a may be formed at the front of the lower housing 111, and the dry air suction hole 163b may be formed at the rear of the lower housing 111.

[0259] Air that has passed through the drying path 163 may be discharged at the dry air discharge hole 163a. Specifically, when the suction motor (not shown) of the cleaner body 300 is operated, air can pass through the drying path 163 by the suction power of the suction motor and be discharged from the dry air discharge hole 163a.

[0260] The dry air discharge hole 163a may be arranged between the suction port 113a and a pair of moisture supply holes 162. That is, the dry air discharge hole 163a can be arranged between a pair of moisture supply holes 162 based on the left-right direction of the mop module 100, and may be arranged between the suction port 113a and the moisture supply hole 162 based on the front-back direction of the mop module 100.

[0261] Through this arrangement, moisture discharged from the moisture supply hole 162 may meet air discharged from the dry air discharge hole 163a before flowing into the suction port 113a.

[0262] Accordingly, air introduced through the drying path 163 may dry moisture discharged from the moisture supply hole 162.

[0263] Air from outside the mop module 100 may be introduced into the dry air suction hole 163b.

[0264] For example, a pair of drying air suction holes 163b may be arranged at the rear of the lower housing 111. In this case, it is preferable for the drying air suction holes 163b to be located farther from the center of rotation of the rotary cleaning part 140. This is because the farther the drying air suction hole 163b is positioned from the mop 150, the more air with lower humidity can be introduced.

[0265] With this configuration, relatively dry air may be introduced into the drying path 163 through the drying air suction hole 163b.

[0266] Meanwhile, the gap between the module housing 110 and the diffuser housing 161 of the drying path 163 may become narrower as it approaches the suction port 113a. That is, the cross-sectional area of the drying path 163 may become narrower as it approaches the dry air discharge hole 163a.

[0267] With this configuration, the air flowing inside the drying path 163 may have its velocity increase as it approaches the dry air discharge hole 163a.

[0268] Therefore, according to the present disclosure, the drying effect may be improved by increasing the flow rate of air discharged from the drying path 163.

[0269] Meanwhile, referring to FIG. 1, the cleaner 1 according to the present disclosure may include an extension pipe 200.

[0270] The extension pipe 200 may be coupled to the cleaner body 300 and the mop module 100.

[0271] For example, the extension pipe 200 may be formed in a cylindrical shape. Accordingly, an internal space of the extension pipe 200 may be in communication with the internal space of the mop module 100. Also, the extension pipe 200 may be in communication with a suction portion formed in the suction path of the cleaner body 300.

[0272] When suction power is generated by the suction motor (not show), suction power may be provided to the mop module 100 through the suction portion and the extension pipe 200. Accordingly, external dust and air may be sucked into the cleaner body 300 through the mop module 100 and the extension pipe 200. The dust and air sucked in through the mop module 100 may pass through the extension pipe 200 and then may be introduced into the cleaner body 300.

[0273] Meanwhile, wires may be embedded in the extension pipe 200. Accordingly, the cleaner body 300 and the mop module 100 may be electrically connected to each other through the extension pipe 200.

[0274] Referring to FIG. 1, the cleaner 1 according to the present disclosure may include the cleaner body 300.

[0275] The cleaner body 300 may include a suction motor, a dust bin and a battery. The cleaner body 300 may be supplied power from the battery to operate the suction motor, and may generate suction power by using the operation of the suction motor.

[0276] A suction path may be formed in the cleaner body 300 so that air and dust introduced from the mop module 100 can flow therethrough.

[0277] The cleaner body 300 may include at least one cyclone part that separates dust sucked therein by applying the principle of a dust collector using centrifugal force. Accordingly, while the air is flowing spirally, dust may be separated from the air introduced through the suction path.

[0278] The cleaner body 300 may include the dust bin to store the dust separated from the air sucked through the cyclone flow.

[0279] The battery may supply power to the mop module 100. At this time, the battery may supply power to the driving motor 170 of the mop module 100. In addition, the battery may supply power to a water pump 133 of the mop module 100.

[0280] Referring to FIG. 1, the cleaner according to the present disclosure may include an auxiliary battery housing 400.

[0281] The auxiliary battery housing 400 may be coupled to the mop module 100 or the extension pipe 200. An auxiliary battery 500 may be detachably mounted to the auxiliary battery housing 400. As one example, the auxiliary battery housing 400 may be coupled to the connection pipe 180 of the mop module 100, and configured to detachably accommodate the auxiliary battery 500 therein.

[0282] The auxiliary battery housing 400 may be configured to electrically connect the auxiliary battery 700 to the heat generator 136. With this configuration, it is possible to supply electric energy of the auxiliary battery 500 to the heat generator 136 requiring high power supply.

[0283] Alternatively, the auxiliary battery housing 400 may be configured to directly connect the battery (not shown) provided in the cleaner body 300 to the auxiliary battery 500. With this configuration, when a high power supply is required such as when the heat generator 136 is in operation, power can be supplied stably.

[0284] Alternatively, the auxiliary battery housing 400 may be configured to connect the battery provided in the cleaner body 300 and the auxiliary battery 500 to each other in parallel. With this configuration, the usage time of the cleaner 1 can be extended.

[0285] Referring to FIGS. 1 and 2, the cleaner 1 according to the present disclosure may include an auxiliary battery 500.

[0286] The auxiliary battery 500 may be configured to store electric energy therein. For example, the auxiliary battery 500 may be a secondary battery.

[0287] The auxiliary battery 500 may supply power to the mop module 100. Specifically, the auxiliary battery 500 may supply power to the heat generator 136. At this time, the auxiliary battery 500 and the heat generator 200 may be electrically connected to each other.

[0288] Meanwhile, FIG. 6 illustrates a drawing to describe the bottom surface of the lower housing in the mop module according to one embodiment of the present invention, and FIG. 7 illustrates a drawing to describe the flow of moisture and air in the mop module according to one embodiment of the present invention.

[0289] Referring to FIGS. 3 to 7, the flow of moisture and air in the present disclosure is described as follows.

[0290] When the vacuum cleaner body 300 is operated, the suction motor (not shown) of the cleaner body 300 operates, and power is supplied to the mop module 100. At this time, the water pump 133 and the mop driving motor 170 operate. Furthermore, the heat generator 136 may be operated according to the user's selection.

[0291] Therefore, air containing dust can be sucked into the suction port 113a by the suction power generated by the suction motor (not shown).

[0292] At the same time, moisture (water or steam) can be discharged through the moisture supply hole 162 by the fluid force generated by the water pump 133. The moisture discharged from the moisture supply hole 162 is supplied to the mop 150.

[0293] Furthermore, the mop 150, to which moisture is supplied through the moisture supply hole 162, may be rotated by the driving force of the mop driving motor 170. Consequently, the moisture supplied to the mop (150) can be diffused.

[0294] Meanwhile, the space between the mop 150 and the suction port 113a is blocked by the blocker 114. Accordingly, the mop module 100 may suck up and clean dust in front, and wipe the floor by rotating the mop 150 that has absorbed moisture.

[0295] Meanwhile, in conventional mop modules, some of the moisture supplied to the mop may flow into the suction port due to the suction power of the suction motor.

[0296] In this case, the moisture flowing into the suction port may mix with dust and remain around the suction port, causing contamination. Alternatively, the moisture flowing into the suction port may flow into the dust bin of the vacuum cleaner body. The moisture flowing into the dust bin may cause bacterial growth or decay within the dust bin.

[0297] To address this issue, the present disclosure includes the drying path 163, as described above, to dry the moisture discharged from the moisture supply hole 162 and flowing into the suction port 113a.

[0298] When the mop module 100 is placed on the floor and the suction motor (not shown) of the cleaner body 300 is operated, negative pressure is generated in the suction port 113a due to the suction force of the suction motor (not shown). Accordingly, air at the rear of the mop module 100 may be drawn into the dry air suction hole 163b, pass through the drying path 163, and then be supplied toward the suction port 113a through the dry air discharge hole 163a. At this time, the air passing through the drying path 163 has a lower humidity than the air surrounding the moisture supply hole 162.

[0299] Meanwhile, moisture discharged from the moisture supply hole 162 may be blocked by the blocker 114. In this situation, air discharged from the dry air discharge hole 163a may be supplied to the blocker 114.

[0300] At this time, the air passing through the drying path 163 may have its flow direction guided by the guide rib 111a. Specifically, air guided into the space between the side wall of the drying channel 163 and the guide rib 111a on one side may be discharged toward the extension 114b of the blocker 114, which will be described later. Furthermore, the air discharged toward the extension portion 114b may flow along the arc-shaped extension portion 114b, thereby blocking moisture from flowing toward the suction port 113a (a type of air curtain) and simultaneously drying the moisture.

[0301] In addition, since the width and cross-sectional area of the drying path 163 decrease as it approaches the drying air discharge hole 163a, the flow velocity of air passing through the drying path 163 increases as it approaches the drying air discharge hole 163a. This can increase the amount of air in contact with moisture and enhance the drying effect.

[0302] Consequently, according to the present disclosure, by supplying relatively dry air between the moisture supply hole 162 and the suction port 113a through the drying path 163, moisture discharged from the moisture supply hole 162 is dried before flowing into the suction port 113a, thereby preventing contamination of the mop module 100 itself and the inside of the dust bin of the cleaner body (300).

[0303] Although the present invention has been described with reference to the exemplified drawings, it is to be understood that the present invention is not limited to the embodiments and drawings disclosed in this specification, and those skilled in the art will appreciate that various modifications are possible without departing from the scope and spirit of the present invention.

[0304] Further, although the operating effects according to the configuration of the present invention are not explicitly described while describing an embodiment of the present invention, it should be appreciated that predictable effects are also to be recognized by the configuration.

Claims

1. A mop module of a cleaner configured to perform cleaning by wiping out foreign substances from the floor surface, the mop module comprising: a module housing; a water tank coupled to the module housing and configured to store water therein; at least one rotary cleaning part disposed below the module housing and to which a mop is coupled; a heat generator configured to heat water supplied from the water tank; and a diffuser provided below the heat generator and configured to supply moisture heated in the heat generator to the mop, wherein the module housing comprises, a lower housing in which a suction port configured to suck air containing dust therein, and the diffuser comprises, a diffuser housing coupled to a lower surface of the module housing; and a moisture supply hole formed in the diffuser housing in a pair, and configured to discharge moisture heated in the heat generator therefrom, and a drying path through which air flows is formed between the module housing and the diffuser housing.

2. The mop module of the cleaner of claim 1, wherein the drying path comprises, a dry air discharge hole disposed between the suction port and the pair of moisture supply holes and configured to discharge air.

3. The mop module of the cleaner of claim 1, wherein the drying path further comprises, a dry air suction hole disposed in a rear side of the lower housing and configured to suck air.

4. The mop module of the cleaner of claim 1, wherein a guide rib is protruded on a lower surface of the lower housing and configured to guide the flow of air flowing through the drying path.

5. The mop module of the cleaner of claim 1, wherein a blocker is protruded on a lower surface of the module housing and configured to block a front space where the suction port is located and a rear space where the moisture supply hole is located to prevent moisture discharged from the moisture supply hole from diffusing to the suction port.

6. The mop module of the cleaner of claim 5, wherein moisture discharged from the moisture supply hole and air passing through the drying path are introduced in the blocker.

7. The mop module of the cleaner of claim 5, wherein the drying path is positioned behind the blocker.

8. The mop module of the cleaner of claim 1, wherein as the drying path gets closer to the suction port, a gap between the module housing and the diffuser housing becomes narrower.

9. A cleaner comprising: a cleaner body comprising a suction motor configured to generate a suction power; and a mop module detachably coupled to the cleaner body and configured to perform cleaning by wiping out foreign substances from the floor surface, wherein the mop module comprises, a module housing in which a suction port configured to suck air containing dust is formed; a water tank coupled to the module housing and configured to store water therein; at least one rotary cleaning part disposed below the module housing and to which a mop is coupled; a heat generator configured to heat water supplied from the water tank; and a diffuser provided below the heat generator and configured to supply moisture heated in the heat generator to the mop, the diffuser comprises, a diffuser housing coupled to a lower surface of the module housing; and a moisture supply hole formed in the diffuser housing and configured to discharge moisture heated in the heat generator therethrough, a drying path through which air flows is formed between the module housing and the diffuser housing, and when the suction motor is operated, air passing through the drying path is introduced into the suction port.

10. The cleaner of claim 9, wherein when the suction motor is operated, the air discharged from the drying path is supplied to the moisture flowing from the mop to the suction port.

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