Wet wipe module of dust collector

Abstract

The present invention relates to a wet wipe module of a vacuum cleaner, comprising a module cover, at least one rotary cleaning part to which a wipe can be combined, a heat generator for heating water supplied from a water tank, and a diffuser for supplying moisture heated in the heat generator to the wipe, a housing coupled to the module cover; and a moisture supply hole that discharges the moisture heated in the heat generator to the wipe; at least one moisture supply hole is formed in the circumferential direction, and therefore the effect that the moisture discharge amount of the diffuser can be made uniform is achieved.

Description

Technical Field

[0001] The present invention relates to a vacuum cleaner, and more particularly to a wet wipe module of the vacuum cleaner that sucks or wipes dust or foreign matter in a cleaning target area by spouting water to the wipe. Background Art

[0002] A vacuum cleaner is a machine that cleans the area by sucking in or wiping away dust or foreign matter.

[0003] Such vacuum cleaners can be divided into manual vacuum cleaners that a user directly moves the vacuum cleaner to clean and automatic vacuum cleaners that clean while moving by themselves.

[0004] In addition, manual vacuum cleaners can be divided into canister vacuum cleaners, upright vacuum cleaners, handheld vacuum cleaners, stick vacuum cleaners, etc. according to the shape of the vacuum cleaner.

[0005] There are two ways to clean the floor: dry cleaning and wet cleaning. Dry cleaning is a way of cleaning by sweeping or sucking dust, and existing vacuum cleaners correspond to dry cleaning. Wet cleaning is a way of cleaning by wiping dust with a wet rag.

[0006] In the prior art, a dry vacuum cleaner is used for dry cleaning, and a wet vacuum cleaner is used for wet cleaning. However, there is the inconvenience of having to purchase two vacuum cleaners to clean various floors. In order to solve the above-mentioned problem, a method has been developed in which a main body, a dry cleaning module and a wet cleaning module are provided, and the dry cleaning module is installed on the main body for dry cleaning, and the wet cleaning module (wet rag module) is installed on the main body for wet cleaning.

[0007] However, in wet cleaning, if foreign matter is attached to the floor, the foreign matter may still remain even if the floor is wiped by rotating a cloth that absorbs water.

[0008] Furthermore, when microorganisms and the like are multiplying on the floor, there is a limitation that even if the floor is wiped by rotating a cloth that absorbs water, the microorganisms may not be completely sterilized.

[0009] In order to solve the above problem, it is conceivable to heat the water by a heater and supply high-temperature water or steam to the rag.

[0010] At this time, the steam wet mop module includes: a water bucket that stores water; a heater that generates steam by heating water; and a mop that receives water or steam and wipes the floor, etc. Here, in order to easily replace each component, it is preferably configured as a component. For example, when the water bucket or heater is configured in the main body, there is a problem of inconvenience in cleaning due to the weight of the water bucket or heater as an unnecessary component during dry cleaning. Therefore, in terms of ease of cleaning or ease of module replacement or space usage, the water bucket or heater is preferably configured in the steam wet mop module rather than the vacuum cleaner main body.

[0011] On the other hand, generally, a vacuum cleaner having a steam generator receives power using a wire, and thus can supply steam by continuously operating the steam generator.

[0012] In contrast, in the case of a cordless vacuum cleaner that receives power through a battery, there is a limit to the time that steam can be generated. Therefore, it is necessary to quickly supply the steam generated by the steam generator to the rag before it condenses.

[0013] Korean Patent Publication No. 10-2008-0020304A (2008.03.05) discloses a vacuum steam cleaner that supplies steam to a rotating wet mop.

[0014] In the vacuum steam cleaner, a plurality of holes are arranged in a cross shape on a rotating plate, and steam is supplied to a wet rag through the plurality of holes.

[0015] However, as described above, when the steam outlet is formed on the rotating plate, the rotating plate and the wet rag rotate together, so the steam ejected from the hole is continuously supplied to the same position of the wet rag. Therefore, there are positions where steam is supplied and positions where steam is not supplied on the wet rag, which results in a serious deviation in the cleaning ability of the wet rag.

[0016] On the other hand, Korean Patent No. 1668046B1 (October 14, 2016) discloses a steam cleaner having a spray unit provided on a cover body and supplying steam to a rotating rag.

[0017] In the case of the steam cleaner, the injection portion having the injection port may be provided protrudingly in an arc shape on the lower cover of the cleaner, and may eject steam toward the rotating unit (rotating plate).

[0018] However, in the steam cleaner, a plurality of injection ports are formed at predetermined intervals along the circumferential direction. As described above, when a plurality of injection ports are formed, the pressure of steam from the injection ports arranged near the inlet for steam to flow in is higher than the pressure of steam from the injection ports arranged far from the inlet. Therefore, the injection ports arranged near the position for steam to flow in can discharge steam with a relatively large flow rate, and the other injection ports can discharge steam with a relatively small flow rate.

[0019] Therefore, the wet rag may receive moisture unevenly. Therefore, there may occur a problem that the cleaning performance of the rag is degraded due to uneven steam supply in the spraying part formed with a plurality of holes.

[0020] On the other hand, generally, when steam is discharged through the discharge port of the diffuser, part of the steam condenses to form condensed water. When the condensed water is discharged through the discharge port, there is a possibility that the discharge of steam is hindered.

[0021] Specifically, the condensed water generated during the steam discharge process may block the discharge port instantly, and the flow rate and pressure of the steam discharged through the discharge port may decrease. In addition, when the condensed water is discharged by the pressure of the steam, the flow rate and pressure of the steam discharged through the discharge port may increase instead.

[0022] Therefore, there may occur a problem that the flow rate and pressure of the steam discharged through the discharge port may become uneven, and the moisture supplied to the rag may become uneven. Summary of the invention

[0023] Problems to be solved by the invention

[0024] The present invention is proposed to improve the problems of the wet rag module of the existing vacuum cleaner as described above, and its purpose is to provide a wet rag module of the vacuum cleaner that improves the sterilization and foreign matter removal effects by supplying high-temperature water or steam to the rag.

[0025] Another object of the present invention is to provide a wet mop module for a vacuum cleaner that can uniformly supply high-temperature water or steam to a large area of ​​a mop at the same time.

[0026] Another object of the present invention is to provide a wet mop module for a vacuum cleaner capable of stably and uniformly supplying high-temperature water or steam at a flow rate and pressure to a mop.

[0027] Another object is to provide a wet mop module for a vacuum cleaner capable of minimizing heat loss of moisture during supply of high-temperature water or steam to a mop.

[0028] Technical solutions to the problem

[0029] In order to achieve the above-mentioned purpose, the wet rag module of a vacuum cleaner for wiping and cleaning foreign objects on the floor may include: a module cover; a water tank combined with the module cover to store water inside the water tank; at least one rotating cleaning part arranged on the lower side of the module cover, and the rag can be combined with the at least one rotating cleaning part; a heat generator to heat the water supplied from the water tank; and a diffuser arranged on the lower side of the heat generator to supply the water heated in the heat generator to the rag.

[0030] At this time, the diffuser may include: a diffuser cover body combined with the module cover body; and a moisture supply hole formed in the diffuser cover body to spit out the moisture heated in the heat generator; at least one of the moisture supply holes may be formed along the circumferential direction.

[0031] At this time, a plurality of the moisture supply holes may be formed, and diameters of the moisture supply holes may be different from each other.

[0032] In particular, the diffuser may be connected to the heat generator; and the diameters of the plurality of moisture supply holes may become larger as they are away from a portion connected to the heat generator.

[0033] The diffuser may further include a guide rib, the guide rib being formed to protrude and extend downward from the diffuser cover and formed along a circumferential direction.

[0034] The diffuser may further include a condensate drainage portion, and the condensate drainage portion is formed to be inclined downward from the diffuser cover.

[0035] Alternatively, the internal space of the diffuser through which the water flows may become narrower as it moves away from the portion connected to the heat generator.

[0036] At this time, the diffuser may further include a diffuser cover, wherein the diffuser cover is combined with the diffuser cover to form a space inside for water to flow.

[0037] The diffuser cover may include: a cover body covering the diffuser cover; and a flow rate adjustment portion protruding from the cover body toward the diffuser cover.

[0038] At this time, the protruding height of the flow rate regulating portion may be different according to the distance between the portions connected to the heat generator.

[0039] The protruding height of the flow rate regulating portion may increase as the position is away from the portion connected to the heat generator.

[0040] In order to achieve the above object, in another embodiment of the wet rag module of a vacuum cleaner for wiping and cleaning foreign objects on a floor, the moisture supply hole may be formed in a long hole shape along the circumferential direction.

[0041] The moisture supply hole may be formed along the circumferential direction, and may be formed so that a radial diameter thereof becomes larger along the circumferential direction.

[0042] The diffuser may further include a guide rod, the guide rod being formed to protrude from the diffuser cover toward the heat generator, and removing a water film generated in the heat generator.

[0043] The diffuser may further include a guide inclined surface guiding moisture flowing in from the heat generator to the moisture supply hole.

[0044] Effects of the Invention

[0045] As described above, according to the wet rag module of the vacuum cleaner of the present invention, it is possible to improve the sterilization effect and foreign matter removal effect by supplying high-temperature water or steam to the rag through the heater.

[0046] In addition, a plurality of water supply holes are arranged in the circumferential direction of the diffuser, so that water can be supplied to a large area of ​​the rag at the same time.

[0047] Furthermore, by increasing the diameter of the discharge port of the diffuser as the position away from the water supply inflow position increases, the water discharge amount of the plurality of water supply holes can be made uniform.

[0048] Furthermore, the flow rate in the diffuser is increased as the distance from the position where the water is to flow in increases, so that the water discharge amount from the plurality of water supply holes can be made uniform.

[0049] In addition, the diffuser has a discharge port formed in a long hole shape in the circumferential direction, thereby preventing the discharge port from being clogged by condensed water, which would cause the discharge of steam to become unstable.

[0050] In addition, the distance that the water discharged from the heat generator is supplied to the rag through the diffuser is minimized, thereby minimizing the heat loss of the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a three-dimensional diagram of a vacuum cleaner according to an embodiment of the present invention.

[0052] Figure 2 It is a combined three-dimensional diagram for illustrating a wet wipe module according to an embodiment of the present invention.

[0053] Figure 3 yes Figure 2 Exploded three-dimensional diagram.

[0054] Figure 4 It is a three-dimensional diagram of a wet wipe module according to an embodiment of the present invention with the upper cover removed.

[0055] Figure 5 yes Figure 4 Top view of the .

[0056] Figure 6 yes Figure 2 Bottom view of .

[0057] Figure 7 yes Figure 6 A bottom view showing the state where the rag is removed.

[0058] Figure 8 yes Figure 2 Rear view of.

[0059] Fig. 9 yes Figure 2 sectional view of .

[0060] Fig.10 It is a stereoscopic diagram for explaining a heat generator and a diffuser in a wet wipe module according to an embodiment of the present invention.

[0061] Fig.11 It is an exploded perspective view of a heat generator according to an embodiment of the present invention.

[0062] Fig.12 It is an exploded perspective view for explaining the structure of a diffuser in a wet wipe module according to an embodiment of the present invention.

[0063] Fig.13 It is a bottom view for explaining the structure of a diffuser in a wet wipe module according to an embodiment of the present invention.

[0064] Fig.14a It is a cross-sectional view for explaining a structure for discharging condensed water in a diffuser of a wet wipe module according to an embodiment of the present invention.

[0065] Fig.14b The figure is used to explain the arrangement relationship of the diffuser, the rotary cleaning unit and the wipe in the wet wipe module according to one embodiment of the present invention.

[0066] Fig.15 It is a bottom view of a wet wipe module for illustrating the second embodiment of the present invention.

[0067] Fig.16 It is a perspective view for explaining the structure of a diffuser in a wet wipe module according to a second embodiment of the present invention.

[0068] Fig.17 It is a cross-sectional view for explaining the change of the flow path diameter inside the diffuser in the wet wipe module according to the second embodiment of the present invention.

[0069] Fig.18 It is a bottom view for illustrating a wet cloth module according to a third embodiment of the present invention.

[0070] Fig.19It is a top view for explaining the structure of a diffuser in a wet wipe module according to a third embodiment of the present invention.

[0071] Fig. 20 It is a bottom view for explaining the internal structure of the diffuser in the wet wipe module according to the third embodiment of the present invention.

[0072] Fig.21 4 is a cross-sectional view for explaining the internal structure of a diffuser in a wet wipe module according to a third embodiment of the present invention.

[0073] Fig. 22 It is a cross-sectional view for explaining the internal structure of a diffuser according to a third embodiment of the present invention.

[0074] Fig.23 It is a bottom view for describing a wet cloth module according to a fourth embodiment of the present invention.

[0075] Fig.24 It is a diagram for explaining a flow rate regulating unit in a wet wipe module according to a fourth embodiment of the present invention.

[0076] Fig.25 FIG. 4 is a bottom view of a wet wipe module for illustrating a fifth embodiment of the present invention. DETAILED DESCRIPTION

[0077] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0078] The present invention can be modified in many ways and has many embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This does not mean that the present invention is limited to specific embodiments, and should be interpreted as including all modifications, equivalents, or substitutes included in the concept and technical scope of the present invention.

[0079] Figure 1 A three-dimensional diagram of a vacuum cleaner according to an embodiment of the present invention is shown. Figures 2 to 9 A diagram is shown for explaining a wet wipe module according to an embodiment of the present invention.

[0080] Reference Figures 1 to 9 A vacuum cleaner 1 according to an embodiment of the present invention may include: a vacuum cleaner body 500 provided with a suction motor for generating suction; a wet rag module 100 connected to the vacuum cleaner body 500 and used for cleaning by sucking air and foreign matter from the ground and wiping the ground; and an extension tube 400 connecting the vacuum cleaner body 500 and the wet rag module 100.

[0081] The wet wipe module 100 according to the embodiment of the present invention may include a module cover 110 and a connection pipe 180 movably connected to the module cover 110 .

[0082] As an example, the wet wipe module 100 of the present embodiment can be connected to a handheld vacuum cleaner or a canister vacuum cleaner for use.

[0083] That is, the wet rag module 100 can be detachably connected to the vacuum cleaner body 500 or the extension tube 400. As the wet rag module 100 is connected to the vacuum cleaner body 500 or the extension tube 400, the user can use the wet rag module 100 to clean the floor. At this time, the vacuum cleaner body 500 connected with the wet rag module 100 can separate dust in the air in a multi-cyclone manner.

[0084] The wet cloth module 100 may receive power from the cleaner body 500 to operate. Specifically, the wet cloth module 100 may receive power from a battery disposed in the cleaner body 500 to operate.

[0085] The cleaner body 500 to which the wet mop module 100 is connected includes a suction motor (not shown), and thus suction force generated by the suction motor (not shown) may be applied to the wet mop module 100 .

[0086] Therefore, the wet cloth module 100 in this embodiment can perform the function of sucking in foreign matter and air on the ground and guiding them to the cleaner body 500 .

[0087] The connection pipe 180 may be connected to the rear center portion of the module cover 110 to guide the sucked air to the cleaner 1 , but is not limited thereto.

[0088] To facilitate understanding, if the directions of the present embodiment are defined, the portion of the wet wipe module 100 to which the connection pipe 180 is connected may be regarded as the rear side (rear) of the wet wipe module 100, and the opposite side of the portion to which the connection pipe 180 is connected may be regarded as the front side (front) of the wet wipe module 100. In addition, the direction connecting the front and the rear may be referred to as the front-rear direction.

[0089] In addition, based on the view from the connection pipe 180 toward the suction port 113a, the left side of the flow path forming portion 113 may be referred to as the left side of the wet wipe module 100, and the right side of the flow path forming portion 113 may be referred to as the right side of the wet wipe 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 a direction perpendicular to the front-rear direction on a horizontal plane.

[0090] In addition, based on the state where the wet rag module 100 is placed on the ground, that is, the state where the rag 150 is placed on the ground and can wipe the ground, the direction close to the ground can be called the lower side or downward, and the direction away from the ground can be called the upper side or upward.

[0091] The wet cloth module 100 may further include a rotary cleaning portion 140 rotatably disposed at a lower side of the module cover 110. For example, the rotary cleaning portion 140 may be a rotary plate formed in a circular plate shape.

[0092] As an example, the rotary cleaning unit 140 may be provided as a pair and arranged in the left-right direction. In this case, the pair of rotary cleaning units 140 may rotate independently. As an example, the rotary cleaning unit 140 may include a first rotary cleaning unit 141 and a second rotary cleaning unit 142.

[0093] The rotary cleaning unit 140 may be combined with a rag 150 . As an example, the rag 150 may be formed in a circular plate shape. The rag 150 may include a first rag 151 and a second rag 152 .

[0094] When the rag 150 is placed on the ground, under the action of the load of the wet rag module 100, the rag 150 is in close contact with the ground, thereby increasing the friction between the rag 150 and the ground.

[0095] The module cover 110 may form the appearance of the wet wipe module 100 and may be formed with a suction port 113a for sucking air. As an example, the suction port 113a may be formed at the front end of the bottom of the module cover 110. The suction port 113a may be formed extending in the left-right direction of the module cover 110.

[0096] The module cover 110 may include a lower cover 111 and an upper cover 112 , and the upper cover 112 may be coupled to an upper side of the lower cover 111 .

[0097] The lower cover 111 may be installed with the rotary cleaning unit 140 and form the appearance of the wet mop module 100 .

[0098] The lower cover 111 may include a bottom surface 111a combined with a rotary cleaning unit 140. At this time, the lower side of the bottom surface 111a may be configured to face the ground when the wet cloth module 100 is placed on the ground, and the upper side of the bottom surface 111a may be provided with a moisture supply unit 130, a heat generator 200 and a driving motor 170.

[0099] A suction port 113a may be formed in the lower cover 111. Specifically, a suction port 113a may be formed in the bottom surface 111a of the lower cover 111. The suction port 113a indicates a space into which air containing dust can flow. With the above-described configuration, if the suction motor (not shown) of the vacuum cleaner body 500 is operated, dust and air present around the ground can be sucked into the flow path of the wet rag module 100 through the suction port 113a.

[0100] The lower housing 111 may be provided with a substrate installation portion on which the printed circuit board 190 for controlling the driving motor 170 is installed. As an example, the substrate installation portion may be formed in a hook shape extending upward from the lower housing 111 .

[0101] The substrate setting portion may be located on one side of the flow path forming portion 113 in the lower housing 111, but is not limited thereto. As an example, the printed circuit substrate 190 may be disposed adjacent to the first operating portion 191 and the second operating portion 192. Therefore, the switch provided on the printed circuit substrate 190 may sense the operation of the first operating portion 191 and the second operating portion 192.

[0102] A nozzle hole (not shown) for penetrating the diffuser 300 may be formed in the lower housing 111. Water or steam (vapor) may be supplied to the rag 150 through the nozzle hole (not shown) via the heat generator 200 and the diffuser 300.

[0103] On the other hand, the light emitting module 160 may be disposed on the lower cover 111. Specifically, the light emitting module 160 may be disposed on the front side of the lower cover 111.

[0104] The upper cover 112 may cover the upper side of the lower cover 111 and may constitute the appearance of the wet wipe module 100 of the present invention.

[0105] In addition, the module cover 110 may further include a flow path forming portion 113 that communicates with the suction port 113 a and forms a flow path that guides the air flowing in from the suction port 113 a to the cleaner body 500 .

[0106] The flow path forming portion 113 may be coupled to an upper central portion of the lower housing 111 , and an end portion thereof may be connected to the connection pipe 180 .

[0107] Therefore, by configuring the flow path forming portion 113 , the suction port 113 a can extend in a substantially straight line in the front-rear direction, thereby minimizing the length of the suction port 113 a and minimizing the flow path loss in the wet wipe module 100 .

[0108] The front side portion of the flow path forming portion 113 may cover the upper side of the suction port 113a. The flow path forming portion 113 may be configured to tilt upward as it approaches the rear side from the front end. That is, the upper side surface of the flow path forming portion 113 may be tilted at a predetermined angle with the ground. In addition, the upper side surface of the flow path forming portion 113 may be tilted at a predetermined angle with the bottom surface 111a of the lower cover body 111.

[0109] Therefore, the height of the front side portion of the flow path forming portion 113 may be formed to be lower than the height of the rear side portion.

[0110] According to this embodiment, since the height of the front part of the flow path forming part 113 is relatively low, there is an advantage that the height of the front part can be reduced in the overall height of the wet mop module 100. The lower the height of the wet mop module 100, the higher the possibility that it can be introduced into a narrow space under furniture or a chair for cleaning.

[0111] On the other hand, the heat generator 200 in this embodiment may be disposed on the upper side of the flow path forming portion 113. With the above-described configuration, the heat generator 200 can be stably supported in a state where it is disposed at a predetermined angle to the ground.

[0112] A block 114 is disposed on the lower side surface of the lower cover body 111 (the lower side surface of the bottom surface 111a). The block 114 can block the moisture released from the rag 150 from diffusing toward the suction port 113a by shielding the front space where the suction port 113a is disposed and the rear space where the rag 150 is disposed. For example, the block 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 the two side ends based on the central portion 114a. Furthermore, the central portion 114a may be disposed behind the suction port 113a to block the moisture from flowing toward the suction port 113a side. Furthermore, the extension portion 114b may be set in an arc shape to surround the circular rag 150.

[0113] A plurality of rollers for smoothly moving the wet cloth module 100 may be disposed on the lower side of the bottom surface 111 a of the lower cover 111 .

[0114] As an example, the lower cover 111 may be provided with a front roller 115 in front of the rag 150. 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 in the left-right direction.

[0115] The first roller 115a and the second roller 115b may be rotatably connected to the shaft, respectively. The shaft may be fixed to the lower side of the lower cover 111 in a state of being configured to extend in the left-right direction.

[0116] The distance between the shaft and the front end of the lower cover body 111 may be greater than the minimum distance between the rag 150 and the front end of the lower cover body 111 .

[0117] As an example, at least a portion of the rotary cleaning unit 140 may be disposed between the axis of the first roller 115 a and the axis of the second roller 115 b .

[0118] According to this configuration, the rotary cleaning unit 140 can be arranged as close to the suction port 113a as possible, and the area cleaned by the rotary cleaning unit 140 is increased in the floor where the wet cloth module 100 is arranged, thereby improving the floor cleaning performance.

[0119] In the case of this embodiment, the first roller 115 a and the second roller 115 b are combined at the lower side of the lower cover 111 , so that the mobility of the wet cloth module 100 can be improved.

[0120] A third roller 116 may also be provided at the lower cover 111. Therefore, the first roller 115a and the second roller 115b may support the wet rag module 100 at three points together with the third roller 116. At this time, the third roller 116 may be located behind the rag 150 to avoid interference with the rag 150.

[0121] A cooling air inlet 117 may be formed in the lower cover 111. External air may flow into the interior of the module cover 110 through the cooling air inlet 117. In addition, the cooling air inlet 117 may be formed on the front side wall of the lower cover 111. With the above-described configuration, when the wet cloth module 100 is moved forward by the user's operation, the amount of air flowing in may be increased.

[0122] A cooling air outlet 118 may be formed in the upper cover 112. The air inside the module cover 110 may be discharged to the outside through the cooling air outlet 118. In addition, the cooling air outlet 118 may be formed on both side walls of the upper cover 112. With the above-described configuration, the air may be guided to pass through the drive motor 170 during the process of the air flowing in through the cooling air inlet 117 flowing toward the cooling air outlet 118, thereby having the advantage of being able to prevent the drive motor 170 from overheating.

[0123] Furthermore, with lower cover 111 placed on the ground, cooling air outlet 118 can be arranged farther from the ground than cooling air inlet 117. With the above configuration, air heated inside module cover 110 can rise and be efficiently discharged to cooling air outlet 118.

[0124] The wet wipe module 100 may further include a water tank 120 capable of supplying moisture to the wipe 150 .

[0125] The water tank 120 may be detachably connected to the module cover 110. Specifically, the water tank 120 may be combined with the upper side of the upper cover 112. For example, the water tank 120 may be installed in a water tub placement portion formed on the upper side of the upper cover 112.

[0126] In addition, the water tank 120 may be disposed on the upper portion of the heat generator 200. Specifically, the water tank 120 may be disposed on the upper portion of the heat generator 200 and separated from the heat generator 200. That is, the water tank 120 may be disposed on the upper portion of the heat generator 200 via the upper cover 112.

[0127] In a state where the module cover 110 is mounted with the water tank 120 , the water tank 120 may form an appearance of the wet wipe module 100 .

[0128] In fact, the entire upper side wall of the water tank 120 may form the top surface appearance of the wet cloth module 100. Therefore, the user can visually confirm whether the water tank 120 is installed in the module cover 110.

[0129] The module cover 110 may further include a water tank separation button, which is operated to separate the water tank 120 when the water tank 120 is installed in the module cover 110. For example, the water tank separation button may be located in the central portion of the wet wipe module 100. Therefore, there is an advantage that the user can easily identify the water tank separation button and operate the water tank separation button.

[0130] In a state where the water tank 120 is mounted on the module cover 110 , water in the water tank 120 may be supplied to the rag 150 . Specifically, the water stored in the water tank 120 may be supplied to the rag 150 through the moisture supply part 130 .

[0131] 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 heat generator 200 through at least one pipe (hose). The water flowing into the heat generator 200 can be heated, and can also be phase-changed into steam (water vapor) according to the user's selection. The water or steam heated in the heat generator 200 can be supplied to the rag 150 through the diffuser 300.

[0132] The water tank 120 includes a water supply port. The water supply port is a hole that allows water to flow into the inside of the water tank 120. For example, the water supply port may be formed on a side of the water tank 120.

[0133] The water tank 120 includes a drain port. The drain port is a hole through which water stored in the water tank 120 is drained. Water discharged from the drain port may flow toward the heat generator 200. The drain port may be formed at a lower surface of the water tank 120.

[0134] The water tank 120 includes an air hole. The air hole is a hole that allows air to flow into the inside of the water tank 120. When the water stored in the water tank 120 is discharged to the outside, the pressure inside the water tank 120 decreases, and in order to compensate for the decreased pressure, air can flow into the inside of the water tank 120 through the air hole. For example, the air hole can be formed at the upper end of the water tank 120.

[0135] The wet rag module 100 of the present invention may include a water supply part 130 formed with a flow path for supplying water flowing in from the water tank 120 to the rag 150 .

[0136] Specifically, the moisture supply part 130 may include: a water tank connection part 131, which allows water from the water tank 120 to flow into the interior of the module cover 110; a water inflow pipe 132, which supplies the water flowing into the water tank connection part 131 to the water pump 133; a guide pipe 134, which supplies the water from the water pump 133 to the connector; and a water supply pipe 135, which supplies the water flowing into the connector to the heat generator 200.

[0137] The water tank connection portion 131 can activate a valve (not shown) in the water tank 120 to allow water to flow.

[0138] The water tank connection portion 131 may be coupled to the lower side of the upper cover body 112 , and a portion of the water tank connection portion 131 may penetrate the upper cover body 112 and protrude toward the upper side.

[0139] The water tank connection portion 131 protruding upward can penetrate the discharge port of the water tank 120 and be introduced into the water tank 120 when the water tank 120 is placed on the upper cover 112 .

[0140] The upper cover 112 may be provided with a seal for preventing water discharged from the water tank 120 from leaking around the water tank connection portion 131. As an example, the seal may be formed of a rubber material and may be coupled to the upper cover 112 at its upper side.

[0141] The upper cover 112 may be provided with a water pump 133 for controlling the discharge of water from the water tank 120 .

[0142] The water pump 133 may provide a flow force of water. The water pump 133 may include a first connection port connected to the water inflow pipe 132 and a second connection port connected to the guide pipe 134. At this time, based on the water pump 133, the first connection port may be an inlet, and the second connection port may be an outlet.

[0143] The water pump 133 is a pump that expands or contracts as an internal valve body operates to connect the first connection port with the second connection port. The water pump 133 can be implemented using a known structure, so a detailed description thereof is omitted.

[0144] The water supply pipe 135 may connect the connector and the water flow inlet 212 of the heat generator 200. For example, the water supply pipe 135 may be a pair of pipes branched from the connector.

[0145] Therefore, the water supplied to the water inflow pipe 132 flows into the water pump 133 and then flows to the guide pipe 134. The water flowing to the guide pipe 134 flows to the water supply pipe 135 via the connector. And, the water flowing to the water supply pipe 135 is supplied to the heat generator 200.

[0146] The heat generator 200 is a device for heating water. The heat generator 200 is arranged inside the module cover 110. Specifically, the heat generator 200 is provided on the upper side of the lower cover 111.

[0147] On the other hand, the heat generator 200 in the present invention is arranged at an inclination. Specifically, based on the state where the module cover 110 is placed on the ground, the bottom surface of the heat generator 200 may be arranged to form a predetermined angle α with the ground.

[0148] The specific structure and effects of the heat generator 200 of the present invention will be described later.

[0149] The diffuser 300 is configured to discharge the water in the water tank 120 to the mop 150 .

[0150] Specifically, the diffuser 300 may include at least one moisture supply hole 320 , through which moisture spitted from the heat generator 200 may be supplied to the rag 150 .

[0151] The diffuser 300 may be accommodated in a space formed inside the module cover 110 , and a portion of the diffuser 300 may be exposed to the outside of the module cover 110 through a nozzle hole (not shown) formed in the module cover 110 .

[0152] The diffuser 300 may be mounted to the module housing 110 in a pair and arranged in the left-right direction. In addition, the pair of diffusers 300 arranged in the left-right direction may be formed in shapes symmetrical to each other (mirror images).

[0153] The diffuser 300 may be connected to the heat generator 200 and supply moisture flowing through the heat generator 200 to the rag 150 .

[0154] The specific structure and effect of the diffuser 300 of the present invention will be described later.

[0155] The rotary cleaning unit 140 may receive power from the driving motor 170 and rotate. For example, the rotary cleaning unit 140 may be a rotary plate. The rotary cleaning unit 140 may be formed in a circular plate shape, and a rag 150 may be attached to the bottom surface.

[0156] At this time, the disc-shaped rotating cleaning unit 140 can be arranged parallel to the ground when the wet cloth module 100 is placed on the ground. Alternatively, the disc-shaped rotating cleaning unit 140 can be arranged parallel to the bottom surface 111 a of the lower cover 111 .

[0157] As an example, the rotary cleaning unit 140 may be located behind the suction port 113 a on the lower side of the module cover 110 .

[0158] Therefore, when the wet mop module 100 is moved forward for cleaning, foreign matter and air on the floor can be sucked in through the suction port 113 a , and then the floor can be wiped with the mop 150 .

[0159] At least one rotary cleaning unit 140 may be provided on the lower side of the module cover 110. For example, the rotary cleaning unit 140 may include: a first rotary cleaning unit 141 connected to the first drive motor 171 and having a first rag 151 attached thereto; and a second rotary cleaning unit 142 connected to the second drive motor 172 and having a second rag 152 attached thereto.

[0160] Specifically, the rotary cleaning unit 140 may include: an outer body in a circular shape; an inner body located in the central area of ​​the outer body and connected to the inner circumference of the outer body; and a plurality of connecting ribs connecting the outer circumference of the inner body and the inner circumference of the outer body.

[0161] On the other hand, the rotary cleaning unit 140 may include an attachment member to attach the rag 150. As an example, the attachment member may be Velcro.

[0162] The rotary cleaning unit 140 may be disposed at the lower side of the lower housing 111 . That is, the rotary cleaning unit 140 may be disposed outside the module housing 110 .

[0163] In addition, the rotary cleaning unit 140 may be connected to the driving motor 170 and receive power. For example, the rotary cleaning unit 140 may be connected to the driving motor 170 through one or more gears and rotated by the operation of the driving motor 170.

[0164] The rotary cleaning unit 140 may include a first rotary cleaning unit 141 and a second rotary cleaning unit 142. For example, when the wet rag module 100 is placed on the ground, with the suction port 113a as a reference, the first rotary cleaning unit 141 may represent the rotary cleaning unit 140 disposed on the left side, and the second rotary cleaning unit 142 may represent the rotary cleaning unit 140 disposed on the right side, but the present invention is not limited thereto, and the left and right sides may be interchanged.

[0165] In this embodiment, the rotation center of the first rotation cleaning unit 141 and the rotation center of the second rotation cleaning unit 142 may be spaced apart in the left-right direction.

[0166] That is, the rotation centers P1 and P2 of the rotary cleaning unit 140 may be arranged symmetrically with respect to a center line C that divides the left-right length of the module cover 110 into equal parts.

[0167] The rotation centers P1 and P2 of the rotary cleaning unit 140 may be located farther from the front end of the module cover 110 than the central axis that divides the front and rear length of the module cover 110 into equal parts. This is to prevent the rotary cleaning unit 140 from blocking the suction port 113a.

[0168] The distance between the rotation center P1 of the first rotary cleaning unit 141 and the rotation center P2 of the second rotary cleaning unit 142 may be greater than the diameter of the rag 150. This is to reduce the friction between the first rag 151 and the second rag 152 caused by the interference during the rotation process, and to prevent the reduction of the cleanable area due to the interference.

[0169] The rag 150 may wipe the floor through a rotating motion.

[0170] The rag 150 may be coupled to a lower side of the rotary cleaning unit 140 to face the ground.

[0171] The rag 150 is configured such that the bottom surface facing the ground has a predetermined area, and the rag 150 is configured in a flat shape. The rag 150 is configured such that the horizontal width (or diameter) is sufficiently greater than the vertical height. The rag 150 is coupled to the lower cover 111 side, so that the bottom surface of the rag 150 can be parallel to the ground.

[0172] The bottom surface of the rag 150 may be substantially circular, and the rag 150 may be configured to be a rotationally symmetrical shape as a whole. In addition, the rag 150 may be attached to and detached from the bottom surface of the rotary cleaning unit 140, and may be combined with the rotary cleaning unit 140 and rotate together with the rotary cleaning unit 140.

[0173] When the rotating cleaning unit 140 and the rag 150 are combined on the lower side of the module cover 110, a portion of the rag 150 protrudes to the outside of the wet rag module 100, so that not only the ground below the wet rag module 100 but also the ground outside the wet rag module 100 can be cleaned.

[0174] As an example, the rag 150 may not only protrude toward the sides of the wet rag module 100 , but may also protrude toward the rear.

[0175] The rag 150 may include a first rag 151 coupled to the first rotary cleaning unit 141 and a second rag 152 coupled to the second rotary cleaning unit 142. Therefore, when the first rotary cleaning unit 141 receives power from the first drive motor 171 and rotates, the first rag 151 may also rotate together, and when the second rotary cleaning unit 142 receives power from the second drive motor 172 and rotates, the second rag 152 may also rotate together.

[0176] On the other hand, in this embodiment, the wet cloth module 100 may further include a light emitting module 160 .

[0177] The light emitting module 160 may confirm foreign matter or microorganisms existing in front of the wet wipe module 100 by irradiating light in front of the wet wipe module 100 .

[0178] The light emitting module 160 may be arranged in front of the module housing 110. For example, the light emitting module 160 may be arranged in front of the lower housing 111, and a plurality of light emitting modules 160 may be arranged in the left-right direction. In this case, the light emitting module 160 may be arranged behind the cooling air inlet 117. With this arrangement, the light emitting module 160 may be cooled by the air flowing in from the cooling air inlet 117.

[0179] On the other hand, the light emitting module 160 may be composed of a light emitting member and a diffusion plate.

[0180] The light emitting component can irradiate light to the front or the bottom. As an example, the light emitting component can be composed of a plurality of LEDs. In this case, the light irradiated by the light emitting component can be visible light, and according to the embodiment, it can be infrared (IR) or ultraviolet (UV). The above-mentioned structure has the following effects: when the light emitting component is in operation, it is possible not only to confirm whether there are foreign objects or microorganisms in front of the wet wipe module 100, but also to sterilize the foreign objects or microorganisms in front of the wet wipe module 100 to improve hygiene.

[0181] In addition, a diffusion plate may be disposed in front of the light emitting member to diffuse the light emitted from the light emitting member.

[0182] On the other hand, the wet mop module 100 may further include a driving motor 170 for providing power to rotate the mop 150 and the rotary cleaning unit 140 .

[0183] Specifically, the driving motor 170 may include a first driving motor 171 which rotates the first rotation cleaning unit 141 and a second driving motor 172 which rotates the second rotation cleaning unit 142 .

[0184] As described above, the first drive motor 171 and the second drive motor 172 operate independently. Therefore, even if one of the first drive motor 171 and the second drive motor 172 fails, the rotary cleaning unit 140 can be rotated by using the other one.

[0185] On the other hand, the first driving motor 171 and the second driving motor 172 may be arranged in a spaced relationship in the left-right direction in the module housing 110. In addition, the first driving motor 171 and the second driving motor 172 may be located behind the suction port 113a.

[0186] The driving motor 170 may be disposed in the module housing 110. As an example, the driving motor 170 may be installed on the upper side of the lower housing 111 and covered by the upper housing 112. That is, the driving motor 170 may be located between the lower housing 111 and the upper housing 112.

[0187] On the other hand, the wet mop module 100 includes a connection pipe 180 coupled to the cleaner body 500 or the extension pipe 400 .

[0188] The connection pipe 180 may include a first connection pipe connected to an end of the flow path forming portion 113 , a second connection pipe rotatably connected to the first connection pipe, and a guide pipe communicating the insides of the first connection pipe and the second connection pipe.

[0189] The first connecting tube can be formed into a tube shape, one end portion of which in the axial direction can be connected to the end portion of the flow path forming portion 113, and the other end portion of which in the axial direction can be rotatably combined with the second connecting tube. At this time, the first connecting tube can be formed into a shape in which a portion of the outer peripheral surface is cut, and the cut portion can be facing the second connecting tube and the upper side. With the above-described configuration, when the wet rag module 100 is placed on the ground, the angle formed by the second connecting tube and the ground can change as the user's arm moves. That is, the first connecting tube and the second connecting tube can perform the role of a joint capable of adjusting the angle between the wet rag module 100 and the vacuum cleaner body 500.

[0190] The second connecting pipe is formed in a tube shape, and one axial end portion thereof is rotatably connected to the first connecting pipe, and the vacuum cleaner body 500 or the extension pipe 400 is inserted into the other axial end portion thereof, and is detachably connected to the vacuum cleaner body 500 or the extension pipe 400.

[0191] On the other hand, in the present embodiment, an auxiliary battery cover 600 for accommodating the auxiliary battery 700 may be combined with the second connection pipe.

[0192] On the other hand, electric wires may be built in the first connection pipe and the second connection pipe, and the electric wires built in the first connection pipe and the second connection pipe may be electrically connected to each other.

[0193] On the other hand, the guide pipe may connect the inner space of the first connecting pipe and the inner space of the second connecting pipe. A flow path may be formed inside the guide pipe so that the air sucked from the wet rag module 100 flows toward the extension pipe 400 and / or the cleaner body 500. At this time, the guide pipe may be deformed together with the rotation of the first connecting pipe and the second connecting pipe. As an example, the guide pipe may be formed in a pleated pipe shape.

[0194] On the other hand, the wet wipe module 100 may include a printed circuit substrate 190 configured for the wet wipe module control unit 800 that controls the wet wipe module 100. The printed circuit substrate 190 may be supplied with current and may be provided with a communication line. At this time, the printed circuit substrate 190 may be cooled by air flowing in through the cooling air inlet 117 and discharged through the cooling air outlet 118.

[0195] On the other hand, the module cover 110 may further include a first operating portion 191, and the first operating portion 191 is used to adjust the amount of water discharged from the water tank 120. As an example, the first operating portion 191 may be located at the rear side of the module cover 110.

[0196] The user may operate the first operating part 191 , and through the operation of the first operating part 191 , water may be discharged from the water tank 120 or the discharge of water may be prevented.

[0197] Alternatively, the amount of water discharged from the water tank 120 may be adjusted by the first operating unit 191. For example, as the user operates the first operating unit 191, a first amount of water may be discharged from the water tank 120 per unit time, or a second amount of water greater than the first amount may be discharged per unit time.

[0198] The first operation portion 191 may be pivotally provided to the module cover 110 in the left-right direction, or may be pivotally provided in the up-down direction according to an embodiment.

[0199] For example, when the first operating part 191 is in the neutral position, the water discharge amount is 0, and if the left side of the first operating part 191 is pushed to pivot the first operating part 191 to the left, a first amount of water can be discharged from the water tank 120 within a unit time. Also, if the right side of the first operating part 191 is pushed to pivot the first operating part 191 to the right, a second amount of water can be discharged from the water tank 120 within a unit time.

[0200] On the other hand, the module housing 110 may further include a second operating portion 192 for adjusting the phase of the water discharged from the heat generator 200. As an example, the second operating portion 192 may be located at the rear side of the module housing 110.

[0201] The user may operate the second operating portion 192 , and through the operation of the second operating portion 192 , water or steam (water vapor) may be ejected from the heat generator 200 toward the rag 150 .

[0202] The second operating portion 192 is rotatably disposed on the module cover 110. For example, the second operating portion 192 may be a rotary handle (knob).

[0203] For example, when the second operating part 192 is rotated and located at the first position, water may not be heated in the heat generator 200, and water at room temperature may be discharged to the rag 150. In addition, when the second operating part 192 is rotated and located at a second position different from the first position, water may be heated in the heat generator 200 and discharged to the rag 150. In addition, when the second operating part 192 is rotated and located at a third position different from the first position and the second position, water may be heated in the heat generator 200, and the water may be discharged to the rag 150 after the water is phase-changed into steam (water vapor).

[0204] Fig.10 A perspective view of a heat generator and a diffuser in a wet wipe module for explaining an embodiment of the present invention is shown. Fig.11 An exploded perspective view of a heat generator according to an embodiment of the present invention is shown.

[0205] Below, refer to Fig.10 and Fig.11 , illustrating a heat generator 200 according to an embodiment of the present invention.

[0206] The heat generator 200 may generate high-temperature water or steam (water vapor) by heating water. The heat generator 200 may heat water supplied from the water tank 120 and supply the water to the rag 150.

[0207] The heat generator 200 is disposed on the wet mop module 100, not on the cleaner body 500. This is to prevent the weight and volume of the heat generator 200 from making the cleaning inconvenient when performing dry cleaning when the heat generator 200 is disposed on the cleaner body.

[0208] The heat generator 200 may be combined with the upper portion of the lower cover 111 (the upper side of the bottom surface 111a). For example, the heat generator 200 may be combined with the upper side of the flow path forming portion 113. In this case, since the flow path forming portion 113 is combined with the central portion of the upper side of the lower cover 111, the heat generator 200 may also be arranged in the central portion of the lower cover 111.

[0209] With the above configuration, when the heat generator 200 is in operation, a specific portion of the wet rag module 100 will not be overheated by the heat supplied from the heat generator 200, thereby preventing the wet rag module 100 from being damaged. In addition, the overall volume of the wet rag module 100 can be minimized.

[0210] The heat generator 200 may include a heat chamber 210 , a heater 220 , a lower cover 230 , a seal 240 , an upper cover 250 , a lower insulator 260 , an upper insulator 270 , an overheating breaker 280 , and a temperature sensing part 290 .

[0211] At this time, a heater 220 may be disposed at the lower side of the heat chamber 210, a lower insulator 260 may be disposed at the lower side of the heater 220, and a lower cover 230 may be disposed at the lower side of the lower insulator 260 to cover the lower side of the heat generator 200. In addition, a seal 240 may be disposed at the upper side of the heat chamber 210, an upper insulator 270 may be disposed at the upper side of the seal 240, and an upper cover 250 may be disposed at the upper side of the upper insulator 270 to cover the upper side of the heat generator 200. On the other hand, an overheating circuit breaker 280 and a temperature detection unit 290 are disposed on the outer side of the heat chamber 210.

[0212] The heat chamber 210 may be formed with a flow path through which moisture flows therein, and may provide a space for receiving heat generated from the heater 220 to heat the moisture flowing in the flow path.

[0213] Specifically, the heat chamber 210 includes a chamber body 211 , a water inlet 212 , and a water outlet 213 .

[0214] The chamber body 211 may provide a space for water to flow inside. For example, the chamber body 211 may be formed in a shape similar to a quadrilateral box. For example, the chamber body 211 may have a quadrilateral plate-shaped bottom surface formed at the bottom, and may have four side walls perpendicular to the bottom surface and connected to the bottom surface. Furthermore, the upper portion of the chamber body 211 may be in an open shape. Therefore, the interior of the chamber body 211 may refer to a space surrounded by the bottom surface and the four side walls.

[0215] On the other hand, the space inside the chamber body 211 may be divided by a partition wall. For example, the chamber body 211 may be divided into a left chamber and a right chamber based on the partition wall.

[0216] On the other hand, a water inlet 212 and a water outlet 213 may be formed in the chamber body 211. Specifically, a water inlet 212 and a water outlet 213 may be formed on the bottom surface of the chamber body 211. At this time, the water inlet 212 and the water outlet 213 are preferably arranged to be farthest apart in the front-back direction of the wet cloth module 100. This is to maximize the distance that the water flowing in through the water inlet 212 flows until it is discharged to the water outlet 213, thereby ensuring sufficient heating time.

[0217] For example, the rear end of the chamber body 211 is disposed at a position higher than the front end of the chamber body 211. That is, the heat generator 200 is inclined backward and upward. Thus, water can be heated while flowing from the upper rear portion to the lower front portion of the heat generator 200.

[0218] The water inlet 212 may be formed at the chamber body 211 , and water may flow in from the water tank 120 . The water inlet 212 may be a hole formed at an inlet end of the chamber body 211 .

[0219] Specifically, the water supply pipe 135 of the water supply unit 130 may be connected to the water inlet 212. For example, the water supply pipe 135 may be coupled to the lower side of the chamber body 211, and the flow path inside the water supply pipe 135 and the water inlet 212 may be connected to each other. Therefore, if the water pump 133 is operated, the water stored in the water tank 120 may flow through the water supply pipe 135 and then flow into the chamber body 211 under the action of the flow force generated by the water pump 133.

[0220] The water discharge port 213 may discharge the water heated inside the chamber body 211 . The water discharge port 213 may be a hole formed at an outlet end of the chamber body 211 .

[0221] Specifically, the diffuser 300 may be connected to the water outlet 213. For example, the diffuser 300 may be coupled to the lower side of the chamber body 211, and the flow path inside the diffuser 300 and the water outlet 213 may be connected to each other. Therefore, the water (water or steam) heated inside the chamber body 211 may be supplied to the rag 150 after flowing into the diffuser 300 through the water outlet 213.

[0222] On the other hand, usually, the bottom surface of the steam generator is arranged parallel to the ground where it is installed. In addition, a pipe for discharging steam is provided on the top of the steam generator. Therefore, when the steam generator is operated and generates steam (water vapor), the heated steam rises and is discharged to the outside along the pipe.

[0223] However, in the case of a steam generator of this structure, there is a high possibility that the steam will contact the inner wall or pipe of the steam generator during the rising process and produce condensed water. Therefore, it is necessary to reduce the heat loss that may occur during the flow of steam, and even if condensed water is produced, it is necessary to reheat it and supply it to the rag.

[0224] In order to solve this problem, the steam generator 200 according to the embodiment of the present invention is arranged to be inclined at a predetermined angle to the ground.

[0225] Specifically, when the wet wipe module 100 is placed on the floor (when the wipe 150 is placed on the floor and can wipe the floor), the bottom surface of the chamber body 211 may be inclined at a predetermined angle α to the floor.

[0226] The bottom surface 111a of the lower cover 111 and the bottom surface of the chamber body 211, to which the rotary cleaning unit 140 and the rag 150 are connected, may be inclined at a predetermined angle α. That is, the imaginary extension surface of the bottom surface of the chamber body 211 may intersect the imaginary extension surface of the bottom surface 111a of the lower cover 111.

[0227] In addition, the height from the ground to the water inlet 212 may be greater than the height from the ground to the water outlet 213. Also, the distance from the bottom surface 111a of the lower cover 111 to the water inlet 212 may be greater than the distance from the bottom surface 111a to the water outlet 213.

[0228] With the above-described configuration, even if the water flowing into the water inlet 212 is heated and moves upward by convection, it can flow from the upper part to the lower part of the chamber body 211 under the action of gravity and be heated.

[0229] Furthermore, even if the water heated inside the chamber body 211 changes into water vapor and rises, it does not escape to the upper portion of the chamber body 211 but remains inside the chamber body 211 and is further heated.

[0230] The partition wall of the heat chamber 210 may be formed to protrude upward from the bottom surface of the chamber body 211 along the front-rear direction of the wet wipe module 100. With the above-described configuration, the partition wall may separate the inner space of the chamber body 211 into left and right parts. Therefore, the left and right parts of the inner space of the chamber body 211 may be heated independently.

[0231] In addition, at least one wall for guiding the flow of water may be formed inside the heat chamber 210. For example, the flow path inside the chamber body 211 may be formed in a zigzag shape. As a result, the flow path of the water flowing inside the chamber body 211 can be increased, and sufficient time for heating the water inside the chamber body 211 can be ensured. In addition, there is an effect of increasing the area that can transfer heat to the water flowing inside the chamber body 211. In addition, there is an effect of maintaining the supply of water or steam by maintaining the flow direction of water even if the heat generator 200 shakes.

[0232] The heater 220 can generate heat. The heater 220 is a device that can convert electrical energy into thermal energy and can be implemented using a known structure, so a detailed description is omitted.

[0233] The heater 220 may be disposed at the lower side of the heat chamber 210 and may supply heat to the heat chamber 210. Specifically, the heater 220 may be in contact with the bottom surface of the heat chamber 210. Therefore, if heat is generated in the heater 220, the heat chamber 210 in contact with the heater 220 may be heated due to conduction. Therefore, the heater 220 may receive power from the battery and / or the auxiliary battery 700 provided in the cleaner body 500 and heat the water flowing inside the heat chamber 210.

[0234] On the other hand, the heater 220 can adjust the temperature of the water according to the user's input. In addition, the heater 220 can change the phase of the water into steam (water vapor) according to the user's input.

[0235] On the other hand, in this embodiment, the heater 220 may be in plural. In this case, the heaters 220 may be arranged symmetrically to each other.

[0236] The lower cover 230 may be disposed on the lower side of the heater 220 and the lower insulator 260, and may cover the heater 220 and the lower insulator 260. For example, the lower cover 230 may be formed in a flat plate shape, and may be formed in a shape capable of surrounding the heater 220 and the lower insulator 260. The lower cover 230 may be formed of a material capable of cutting off heat generated from the heater 220.

[0237] With the above configuration, the heat generated in the heater 220 can be prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, the heat generated in the heater 220 can be prevented from damaging the components housed in the module housing 110.

[0238] The seal 240 may be disposed on the upper side of the heating chamber 210 and make the upper side of the heating chamber 210 airtight. Specifically, the seal 240 may make the open upper portion of the chamber body 211 airtight. The seal 240 may be formed of a material capable of blocking the passage of water. With the above-described configuration, even if water vapor generated inside the heating chamber 210 rises, it can be blocked by the seal 240, thereby preventing water leakage to the outside.

[0239] The upper cover 250 may be disposed on the upper side of the seal 240 and the upper insulator 270, and cover the seal 240 and the upper insulator 270. For example, the upper cover 250 may be formed in a flat plate shape, and may be formed in a shape capable of surrounding the seal 240 and the upper insulator 270. The upper cover 250 may be formed of a material capable of blocking heat transferred through the seal 240.

[0240] With the above configuration, the heat generated in the heater 220 can be prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, the heat generated in the heater 220 can be prevented from damaging the components housed in the module housing 110.

[0241] The lower insulator 260 may be disposed between the heater 220 and the lower cover 230, and may block heat transferred from the heater 220. The lower insulator 260 may be formed to have a larger area than the heater 220. For example, the lower insulator 260 may be formed in a flat plate shape and may be formed of a material capable of blocking heat transfer.

[0242] By the above-described configuration, it is possible to prevent the heat generated in the heater 220 from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, it is possible to prevent the components housed inside the module housing 110 from being damaged by the heat generated in the heater 220. In particular, in this embodiment, the heat generated in the heater 220 is doubly blocked by the lower insulator 260 and the lower cover 230, thereby maximizing the effects of improving energy efficiency and preventing component damage.

[0243] The upper insulator 270 may be disposed on the upper side of the sealing member 240, and may block heat transferred from the heat chamber 210. The upper insulator 270 may be formed to have a larger area than the sealing member 240. For example, the upper insulator 270 may be formed in a flat plate shape, and may be formed of a material capable of blocking heat transfer.

[0244] By the above-described configuration, the heat of the heat chamber 210 heated by the heater 220 can be prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, it is possible to prevent the components housed inside the module housing 110 from being damaged due to the heat of the heat chamber 210 leaking to the outside of the heat generator 200. In particular, in the present embodiment, the heat of the heat chamber 210 is doubly blocked by the upper insulator 270 and the upper cover 250, thereby maximizing the effects of improving energy efficiency and preventing component damage.

[0245] The overheating breaker 280 may be disposed on a side of the heat chamber 210 , and may cut off the power supplied to the heater 220 when the temperature of the heat chamber 210 is higher than a predetermined reference temperature Tr.

[0246] The overheat circuit breaker 280 may be disposed in the heat chamber 210 . Specifically, the overheat circuit breaker 280 may be disposed on an outer side of the heat chamber 210 .

[0247] The overheating breaker 280 may be disposed at a location where heat is concentrated in the heat chamber 210. When the temperature of the heat chamber 210 is higher than a predetermined reference temperature Tr, the overheating breaker 280 may block the power supply to the heater 220.

[0248] The overheat circuit breaker 280 may be a device that cuts off the connection of the circuit when overheating occurs. For example, the overheat circuit breaker 280 may be a thermal protector. The thermal protector may be a device that can automatically cut off the connection of the circuit when overheating occurs using bimetal. In addition, the overheat circuit breaker 280 may include all devices that cut off the connection of the circuit when overheating occurs.

[0249] The temperature detection part 290 may measure the temperature of the heat generator 200 .

[0250] The temperature detection unit 290 may be disposed on a side surface of the heat chamber 210. Specifically, the temperature detection unit 290 may be disposed on an outer side surface of the heat chamber 210.

[0251] The temperature detection unit 290 may measure the temperature of the thermal chamber 210. As an example, the temperature detection unit 290 may be a thermistor.

[0252] Fig.12 An exploded perspective view for explaining the structure of a diffuser in a wet wipe module according to an embodiment of the present invention is shown. Fig.13 A bottom view is shown for explaining the structure of a diffuser in a wet wipe module according to an embodiment of the present invention. Fig.14a A cross-sectional view of a structure for discharging condensed water in a diffuser of a wet wipe module according to an embodiment of the present invention is shown. Fig.14b A diagram is shown for explaining the arrangement relationship of a diffuser, a rotary cleaning unit, and a wipe in a wet wipe module according to an embodiment of the present invention.

[0253] Below, refer to Figure 12 to Figure 14b , illustrating a diffuser of a wet wipe module according to an embodiment of the present invention.

[0254] The diffuser 300 may be connected to the heat generator 200 to discharge the water flowing from the heat generator 200 toward the rag 150 .

[0255] The diffuser 300 may be installed in a pair on the module cover 110 and arranged in the left-right direction. In addition, the pair of diffusers 300 arranged in the left-right direction may be formed into shapes symmetrical to each other (mirror images). That is, the diffuser 300 may include a first diffuser 300a that supplies moisture to the first rag 151 and a second diffuser 300b that supplies moisture to the second rag 152.

[0256] The diffuser 300 may be disposed at the lower side of the heat generator 200 , and may be coupled to the moisture discharge port 213 of the heat generator 200 .

[0257] The diffuser 300 includes a diffuser housing 310 , a moisture supply hole 320 , a guide rib 330 , a diffuser cover 340 , and a moisture inflow pipe 350 .

[0258] The diffuser cover 310 may provide a space for moisture to flow inside. The internal space of the diffuser cover 310 may be communicated with the internal space of the heat generator 200 .

[0259] The diffuser cover 310 may be formed circumferentially with a predetermined origin as the center. Figure 7 As shown, when observing the bottom surface of the wet cloth module 100, the bottom surface of the diffuser cover 310 can be formed in an arc shape with the rotation centers P1 and P2 of the pair of rotating cleaning parts 140 as the origin.

[0260] At this time, the diffuser cover 310 can be formed into an arc shape with a predetermined width R2-R1. For example, the inner diameter R1 of the diffuser cover 310 is equal to the radius of the rotating cleaning unit 140 or is larger than the radius of the rotating cleaning unit 140. In addition, the outer diameter R2 of the diffuser cover 310 is smaller than half of the distance between the rotation centers P1 and P2 of the pair of rotating cleaning units 140. With the above-mentioned configuration, the diffuser cover 310 can be arranged between the pair of rotating cleaning units 141 and 142.

[0261] The diffuser cover 310 may be composed of a bottom surface and a side wall that is formed by protruding upward from the bottom surface and surrounds the bottom surface. Therefore, the diffuser cover 310 may form a space for water to flow inside. The bottom surface of the diffuser cover 310 may form the appearance of the wet wipe module 100 together with the lower cover 111. The bottom surface of the diffuser cover 310 may be arranged on the lower cover 111 and may be arranged between the rotation centers P1 and P2 of the pair of rotating cleaning parts 140.

[0262] On the other hand, the upper portion of the diffuser housing 310 may be formed in an open state and may be covered by the diffuser cover 340 .

[0263] The moisture supply hole 320 may be formed in the diffuser cover 310 to discharge the moisture heated in the heat generator 200. Specifically, the moisture supply hole 320 is formed on the bottom surface of the diffuser cover 310 and is formed to allow moisture (water or water vapor) flowing in the diffuser cover 310 to pass through and be discharged to the outside.

[0264] At this time, the moisture supply hole 320 may be disposed at a predetermined distance from the rotation centers P1 and P2 of the rotary cleaning unit 140. Specifically, the distance from the rotation centers P1 and P2 to the moisture supply hole 320 is greater than the radius of the rotary cleaning unit 140.

[0265] In addition, the distance from the rotation centers P1 and P2 to the moisture supply hole 320 is smaller than the radius of the dishcloth 150 .

[0266] With the above-described configuration, the water discharged from the water supply hole 320 can be directly supplied to the mop 150 without being blocked by the rotary cleaning unit 140 .

[0267] On the other hand, generally, a vacuum cleaner having a steam generator receives power using a wire, and thus can supply steam by continuously operating the steam generator.

[0268] In contrast, in the case of a cordless vacuum cleaner that receives power through a battery, there is a limit to the time that steam can be generated. Therefore, it is necessary to quickly supply the steam generated by the steam generator to the rag before it condenses.

[0269] To this end, the wet wipe module 100 of the present invention is configured such that the distance between the heat generator 200 and the moisture supply hole 320 is close.

[0270] That is, the moisture discharge port 213 of the heat generator 200 may be connected to the moisture inflow pipe 350 of the diffuser 300 , and the moisture supply hole 320 of the diffuser 300 may be disposed close to the moisture discharge port 213 of the heat generator 200 .

[0271] By the above configuration, the moisture flowing from the heat generator 200 can quickly pass through the diffuser and be discharged through the moisture supply hole 320. Therefore, the heat loss of the steam or high-temperature water generated in the heat generator 200 can be minimized and supplied to the rag 150.

[0272] At least one moisture supply hole 320 may be formed along the circumferential direction. Specifically, the moisture supply hole 320 may be formed along the circumferential direction with a predetermined origin as the center. Figure 7 As shown, a plurality of moisture supply holes 320 may be formed along the circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin.

[0273] With this configuration, the water ejected from the plurality of water supply holes 320 can be supplied to a predetermined radial position of the rotating rag 150 .

[0274] Here, the moisture supplied to the rag 150 may diffuse along the rag 150 and supply moisture to the entire rag 150 , and heat included in the moisture may increase the temperature of the rag 150 .

[0275] Further, when the rag 150 of the present invention rotates together with the wet rag module 100, due to the centrifugal force, a large amount of water can move radially outward of the rag 150. Therefore, the radially outer side of the rag 150 can maintain a high moisture content and a high temperature.

[0276] Furthermore, the rotating rag 150 may have a torque that increases toward the radial outer side based on the rotation center.

[0277] That is, according to the present invention, the radially outer portion of the rag 150 may have high moisture, high heat, and high torque. Therefore, according to the present invention, there is an effect of being able to maximize the cleaning efficiency of the rag 150.

[0278] On the other hand, in this embodiment, three moisture supply holes 320 can be formed along the circumferential direction. The three moisture supply holes 321, 322, and 323 are formed at specified intervals, but are not limited to this. It can also include the situation where the intervals between the moisture supply holes 320 are different, and the number of moisture supply holes 320 is not limited to this.

[0279] On the other hand, generally, when a plurality of discharge ports are formed in a diffuser, there is a possibility that the flow rates of water discharged from the respective discharge ports differ from each other.

[0280] Specifically, the pressure of water at the outlet arranged near the inlet for water to flow in is higher than the pressure of water at the outlet arranged far from the inlet. Therefore, the outlet arranged near the position for water to flow in can discharge water at a relatively large flow rate, and the other outlets can discharge water at a relatively small flow rate.

[0281] Therefore, the rag may receive moisture unevenly from the discharge port. Moisture may be insufficient in a portion of the rag, and the temperature of a portion of the rag may be low.

[0282] Therefore, there is a possibility that the cleaning performance of the mop may be degraded due to uneven water supply in the diffuser having a plurality of discharge ports.

[0283] In order to solve this problem, in the diffuser 300 according to an embodiment of the present invention, a plurality of moisture supply holes 320 are formed, and the diameters of the moisture supply holes 320 may be different from each other.

[0284] Specifically, the diameters of the plurality of moisture supply holes 320 may be increased as they are away from the portion connected to the heat generator 200. Fig.13As shown, the moisture supply hole 320 may include: a first moisture supply hole 321, which is closest to the moisture inflow hole 351 connected to the heat generator 200; a second moisture supply hole 322, which is formed at a predetermined interval from the first moisture supply hole 321 in a direction away from the moisture inflow hole 351; and a third moisture supply hole 323, which is formed at a predetermined interval from the second moisture supply hole 322 in a direction away from the moisture inflow hole 351. At this time, the diameter of the second moisture supply hole 322 is greater than the diameter of the first moisture supply hole 321. And, the diameter of the third moisture supply hole 323 is greater than the diameter of the second moisture supply hole 322.

[0285] By configuring as described above, it is possible to form a situation in which, in the moisture supply hole 320 arranged near the moisture inflow hole 351, even if the flow rate of the ejected water is fast, the diameter of the water passing through is small, and in the moisture supply hole 320 arranged far from the moisture inflow hole 351, even if the flow rate of the ejected water is relatively slow, the diameter of the water passing through is relatively large.

[0286] Therefore, according to the present invention, there is an effect that the water discharge amount of the plurality of water supply holes 320 can be made uniform.

[0287] On the other hand, a guide rib 330 may be formed at the lower side of the diffuser cover 310. The guide rib 330 may be formed to protrude and extend from the edge of the bottom surface of the diffuser cover 310 toward the lower side.

[0288] The guide rib 330 may be formed along the circumferential direction. The guide rib 330 may be formed along the circumferential direction with a predetermined origin as the center. Fig.13 As shown, the guide rib 330 may be formed along the circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin.

[0289] The guide ribs 330 may be formed in a pair in a shape facing each other. At this time, the moisture supply hole 320 may be disposed between the pair of guide ribs 330 .

[0290] Therefore, when moisture is discharged downward through the moisture supply hole 320 , the moisture may be supplied to the space between the pair of guide ribs 330 .

[0291] With the above-described configuration, the guide rib 330 can block the water discharged from the water supply hole 320 from leaking in the horizontal direction, thereby guiding the water to the rag 150 .

[0292] On the other hand, the diffuser 300 may further include a condensate drain portion 311 formed to be inclined downward from the diffuser cover 310 .

[0293] The condensate drainage portion 311 may be connected to the diffuser cover 310 to provide a space for water to flow inside. The condensate drainage portion 311 may be in communication with the internal space of the diffuser cover 310 .

[0294] The condensate drain portion 311 may be composed of a bottom surface and a side wall that is formed by protruding upward from the bottom surface and surrounds the bottom surface. Therefore, the condensate drain portion 311 may form a space for water to flow inside. The bottom surface of the condensate drain portion 311 may form the appearance of the wet wipe module 100 together with the lower cover 111.

[0295] At this time, the condensate drain portion 311 can be arranged between the rotation centers P1 and P2 of the rotary cleaning portion 140 and the diffuser cover 310. The condensate drain portion 311 can be formed radially with the rotation centers P1 and P2 of the rotary cleaning portion 140 as the origin. That is, the condensate drain portion 311 can be formed by extending radially inward from the diffuser cover 310. With the above-mentioned configuration, the condensate drain portion 311 can be arranged on the vertical upper side of the rotary cleaning portion 140.

[0296] like Fig.14a As shown, the bottom surface of the condensate drainage portion 311 may be formed to be inclined downward from the bottom surface of the diffuser cover 310. At this time, the bottom surface of the condensate drainage portion 311 may form a height difference with the bottom surface of the diffuser cover 310. Therefore, when the rag 150 of the wet rag module 100 faces the ground, the bottom surface of the condensate drainage portion 311 may be configured to be closer to the ground than the bottom surface of the diffuser cover 310.

[0297] With this configuration, the condensed water d generated during the flow inside the diffuser 300 can be accumulated in the condensed water drainage portion under the action of gravity.

[0298] Therefore, according to the present invention, when the diffuser 300 discharges steam toward the rag 150 , the moisture supply hole 320 is prevented from being blocked by the surface tension of condensed water, thereby preventing the steam supply from becoming uneven.

[0299] On the other hand, a condensation hole 312 may be formed in the condensation drain portion 311 .

[0300] The condensation water hole 312 may be disposed in the condensation water drainage portion 311 in the direction of the rotation center P1 and P2 of the rotary cleaning portion 140. In this case, the condensation water hole 312 may be disposed in the condensation water drainage portion 311 so as to be closest to the ground.

[0301] Therefore, the condensed water stored in the condensed water drainage portion 311 may flow toward the condensed water hole 312 under the action of gravity and be discharged through the condensed water hole 312 .

[0302] The condensation water hole 312 may be disposed vertically above the rotary cleaning unit 140 . Therefore, the condensation water discharged through the condensation water hole 312 gradually moves outward from the rotation centers P1 and P2 of the rotary cleaning unit 140 due to the centrifugal force generated by the rotary cleaning unit 140 , and as a result, may be supplied to the rag 150 .

[0303] The diffuser cover 340 is combined with the diffuser housing 310 to form a space for water to flow inside. The diffuser cover 340 can be combined with the condensate drain 311 to form a space for water to flow inside.

[0304] The diffuser cover 340 may cover the upper side of the diffuser housing 310. The diffuser cover 340 may cover the upper side of the condensate drain 311. For example, the diffuser cover 340 may be formed of a material that can make the diffuser housing 310 airtight. By configuring as described above, it is possible to prevent the steam or high-temperature water flowing inside the diffuser housing 310 from leaking into the module housing 110.

[0305] The diffuser cover 340 may be formed to correspond to the shapes of the diffuser housing 310 and the condensate drain 311. The diffuser cover 340 may be formed circumferentially with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin corresponding to the shape of the diffuser housing 310, and one end portion of the diffuser cover 340 may be formed to extend radially inward corresponding to the shape of the condensate drain 311.

[0306] The diffuser cover 340 may be formed with a moisture inflow pipe 350. For example, the moisture inflow pipe 350 may be formed integrally with the diffuser cover 340.

[0307] The water inflow pipe 350 may be formed to extend upward from the diffuser cover 340. For example, when the rag 150 of the wet rag module 100 is placed facing the ground, the water inflow pipe 350 may be formed to extend upward from the diffuser cover 340 in a direction perpendicular to the ground. For another example, the water inflow pipe 350 may be formed to extend upward from the diffuser cover 340 at a predetermined angle.

[0308] The moisture inflow pipe 350 may be combined with the moisture outlet 213 of the heat generator 200. For example, the moisture inflow pipe 350 may be formed in a cylindrical shape connected to the diffuser cover 340. Therefore, the moisture outlet 213 may be inserted into and combined with the moisture inflow pipe 350.

[0309] The water inflow hole 351 may be formed in the water inflow pipe 350. That is, the water inflow pipe 350 may be formed in a hollow tube shape, and a space in which water can flow may be formed.

[0310] The water inflow pipe 350 may be formed of a material that can airtightly seal the water discharge port 213. With the above configuration, it is possible to prevent the steam or high-temperature water that has flowed into the diffuser cover 310 from leaking into the module cover 110.

[0311] on the other hand, Fig.15 A bottom view of a wet wipe module for illustrating a second embodiment of the present invention is shown. Fig.16 A perspective view is shown for explaining the structure of a diffuser in a wet wipe module according to a second embodiment of the present invention. Fig.17 A cross-sectional view is shown for explaining the change in flow path diameter inside a diffuser in a wet wipe module according to a second embodiment of the present invention.

[0312] Below, refer to Figures 15 to 17 , describing the diffuser of the wet wipe module according to the second embodiment of the present invention.

[0313] The diffuser 1300 according to the second embodiment of the present invention includes a diffuser housing 1310 , a moisture supply hole 1320 , a sealing gasket 1330 , a diffuser cover 1340 , and a moisture inlet pipe 1350 .

[0314] On the other hand, in order to avoid repeated description, in this embodiment, the structure and effect of the components not particularly described are the same as those of the diffuser 300 of one embodiment of the present invention, and thus the description of one embodiment can be cited.

[0315] In this embodiment, the moisture supply hole 1320 may be disposed at a predetermined distance from the rotation centers P1 and P2 of the rotary cleaning unit 1140. Specifically, the distance from the rotation centers P1 and P2 to the moisture supply hole 1320 is greater than the radius of the rotary cleaning unit 140.

[0316] In addition, the distance from the rotation centers P1 and P2 to the moisture supply hole 1320 is smaller than the radius of the dishcloth 150 .

[0317] With the above-described configuration, the water discharged from the water supply hole 1320 can be directly supplied to the rag 150 without being blocked by the rotary cleaning unit 1140 .

[0318] At least one moisture supply hole 1320 may be formed along the circumferential direction. A plurality of moisture supply holes 1320 may be formed along the circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 1140 as the origin. As an example, the moisture supply hole 1320 may have a predetermined radius with the rotation centers P1 and P2 of the rotary cleaning unit 1140 as the origin, and may be formed in plurality. As another example, the moisture supply hole 1320 may be arranged in a plurality within a predetermined radius with the rotation centers P1 and P2 of the rotary cleaning unit 1140 as the origin.

[0319] With this configuration, the water ejected from the plurality of water supply holes 1320 can be supplied to a predetermined radial position of the rotating rag 150 .

[0320] On the other hand, the sealing gasket 1330 may be connected to the diffuser cover 1310. For example, the sealing gasket 1330 may be formed integrally with the diffuser cover 1310.

[0321] The sealing gasket 1330 may be formed of a material capable of blocking the passage of moisture.

[0322] The sealing gasket 1330 may be connected to the diffuser cover 1310 to be formed in a ring shape as a whole. Therefore, when observing the bottom surface of the module cover 110, the sealing gasket 1330 and the diffuser cover 1310 may be exposed in a ring shape.

[0323] The above-described configuration has the effect of preventing water that is scattered while the cloth 150 rotates from flowing into the module cover 110 .

[0324] The diffuser cover 1340 is combined with the diffuser housing 1310 to form a space for water to flow inside.

[0325] The diffuser cover 1340 includes a cover body 1341. The cover body 1341 may be combined with an upper portion of the diffuser housing 1310.

[0326] The cover body 1341 may cover the upper side of the diffuser cover 1310. For example, the cover body 1341 may be formed of a material that can make the diffuser cover 1310 airtight. By configuring as described above, it is possible to prevent steam or high-temperature water flowing inside the diffuser cover 1310 from leaking into the module cover 110.

[0327] The cover body 1341 may be formed to correspond to the shape of the diffuser cover 1310. The cover body 1341 may be formed to correspond to the shape of the diffuser cover 1310 and to be circumferentially formed with the rotation centers P1 and P2 of the rotary cleaning unit 1140 as the origin.

[0328] On the other hand, in a diffuser formed with a plurality of discharge ports, water is discharged through the discharge ports while flowing inside the diffuser, so the flow rate decreases and the flow rate can decrease as the distance from the portion into which the water flows decreases.

[0329] Therefore, the flow rate discharged from the discharge port may decrease as the distance from the portion into which the water flows is increased.

[0330] In order to solve this problem, in the present embodiment, the inner space through which the water flows becomes narrower as the distance from the portion connected to the heat generator 1200 increases.

[0331] Specifically, the diffuser cover 1340 further includes a flow rate adjustment portion 1342 .

[0332] The flow rate adjusting portion 1342 may be formed to protrude from the cover body 1341 toward the diffuser cover 1310. The flow rate adjusting portion 1342 may be formed to protrude and extend downward from the cover body 1341.

[0333] The protruding height of the flow rate regulating portion 1342 may be different depending on the distance between the portion connected to the heat generator 1200. Specifically, the protruding height of the flow rate regulating portion 1342 may increase as the portion connected to the heat generator 1200 is farther away. As an example, the flow rate regulating portion 1342 may be formed to protrude obliquely downward from the portion where the water inflow hole 1351 is formed. That is, the flow rate regulating portion 1342 may be formed in a shape in which the protruding height gradually increases from the portion where the water inflow hole 1351 is formed (see FIG. 14 ). Fig.17 ).

[0334] By the above configuration, the space for water flow in the diffuser 1300 can be narrowed as the distance from the portion connected to the water inlet hole 1351 increases. For example, as the distance from the portion connected to the water inlet hole 1351 increases, the height of the internal space of the diffuser 1300 can be gradually reduced. Fig.17 The height of the internal space of the diffuser 1300 at a portion H1 communicating with the moisture inflow hole 1351 is higher than that at a portion H2 communicating with the moisture supply hole 1320 disposed farthest from the moisture inflow hole 1351 (H1>H2).

[0335] With the above-described configuration, there is an effect that the flow rate of water in the diffuser 1300 increases as the distance from the portion communicating with the water inflow hole 1351 increases.

[0336] Therefore, according to the present invention, there is an effect that the flow rate of the water discharged from the plurality of water supply holes 1320 can be made uniform, and the amount of water discharged from the plurality of water supply holes 1320 can be made uniform.

[0337] The diffuser cover 1340 may be formed with a moisture inflow pipe 1350. For example, the moisture inflow pipe 1350 may be formed integrally with the diffuser cover 1340.

[0338] The water inflow pipe 1350 may be formed to extend upward from the diffuser cover 1340. As an example, the water inflow pipe 1350 may be formed to extend upward at a predetermined angle from the diffuser cover 1340. As another example, the water inflow pipe 1350 may be formed to extend upward from the diffuser cover 1340 in a direction perpendicular to the ground.

[0339] The moisture inflow pipe 1350 may be combined with the moisture outlet 1213 of the heat generator 1200. For example, the moisture inflow pipe 1350 may be formed in a cylindrical shape connected to the diffuser cover 1340. Therefore, the moisture outlet 1213 may be inserted into and combined with the moisture inflow pipe 1350.

[0340] The moisture inflow hole 1351 may be formed in the moisture inflow pipe 1350. That is, the moisture inflow pipe 1350 may be formed in a hollow tube shape, and a space in which moisture can flow may be formed.

[0341] The water inflow pipe 1350 may be formed of a material that can make the water discharge port 1213 airtight. With the above configuration, it is possible to prevent the steam or high-temperature water that has flowed into the diffuser cover 1310 from leaking into the module cover 110 .

[0342] on the other hand, Fig.18 A bottom view of a wet wipe module for illustrating a third embodiment of the present invention is shown. Fig.19 A top view for explaining the structure of a diffuser in a wet wipe module according to a third embodiment of the present invention is shown. Fig. 20 A bottom view is shown for explaining the structure of a diffuser in a wet wipe module according to a third embodiment of the present invention. Fig.21 A cross-sectional view is shown for explaining the internal structure of a diffuser in a wet wipe module according to a third embodiment of the present invention, Fig. 22 A cross-sectional view is shown for explaining the internal structure of a diffuser according to a third embodiment of the present invention.

[0343] Below, refer to Figures 18 to 22 , describing a diffuser according to a third embodiment of the present invention.

[0344] The diffuser 2300 according to the third embodiment of the present invention includes a diffuser cover 2310 , a moisture supply hole 2320 , a sealing gasket 2330 , a diffuser cover 2340 , a moisture inlet pipe 2350 , a guide rod 2360 , and a guide inclined surface 2370 .

[0345] On the other hand, in order to avoid repeated description, in this embodiment, the structure and effect of the components not particularly described are the same as those of the diffuser 300 of one embodiment of the present invention, and thus the description of one embodiment can be cited.

[0346] The diffuser cover 2310 may provide a space for water to flow inside. The internal space of the diffuser cover 2310 may be communicated with the internal space of the heat generator 200 .

[0347] The diffuser cover 2310 includes a guide platform 2311 and a drainage surface 2312 .

[0348] The guide platform 2311 may be formed to protrude from the bottom surface of the diffuser cover 2310. The guide platform 2311 may form a step of a predetermined height from the bottom surface of the diffuser cover 2310.

[0349] The drainage surface 2312 may be an inclined surface formed to be inclined downward at a predetermined angle from the guide platform 2311. Specifically, the drainage surface 2312 may be formed to be inclined downward from the guide platform 2311 toward the water supply hole 2320.

[0350] With the above-described configuration, the moisture flowing into the diffuser cover 2310 can flow to the moisture supply hole 2320 along the guide platform 2311 and the drainage surface 2312 .

[0351] The moisture supply hole 2320 may be formed in the diffuser cover 2310 to discharge the moisture heated in the heat generator 200. Specifically, the moisture supply hole 2320 is formed on the bottom surface of the diffuser cover 2310, and the moisture (water or water vapor) flowing in the diffuser cover 2310 is discharged to the outside through the moisture supply hole 2320.

[0352] like Fig. 20 As shown, the moisture supply hole 2320 may be formed in a long hole shape along the circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin.

[0353] With this configuration, the water ejected from the plurality of water supply holes 320 can be supplied to a predetermined radial position of the rotating rag 150 .

[0354] On the other hand, generally, when steam is discharged through the discharge port of the diffuser, part of the steam condenses to form condensed water. When the condensed water is discharged through the discharge port, there is a possibility that the discharge of steam is hindered.

[0355] Specifically, the condensed water generated during the steam discharge process may block the discharge port instantly, and the flow rate and pressure of the steam discharged through the discharge port may decrease. In addition, when the condensed water is discharged by the pressure of the steam, the flow rate and pressure of the steam discharged through the discharge port may increase instead.

[0356] Therefore, there may occur a problem that the flow rate and pressure of the steam discharged through the discharge port may become uneven, and the moisture supplied to the rag may become uneven.

[0357] In order to solve this problem, the moisture supply holes 2320 are formed to have different radial widths.

[0358] As an example, the moisture supply hole 2320 may be formed in a long hole shape along the circumferential direction with the rotation center P1 or P2 of the rotary cleaning unit 140 as the origin, and the radial width may be formed to gradually widen from the front to the rear of the wet cloth module.

[0359] As another example, the moisture supply hole 2320 may be formed in a long hole shape along the circumferential direction with the rotation center P1, P2 of the rotary cleaning unit 140 as the origin, and the radial width may be formed to gradually widen from the left and right outer side to the inner side of the wet cloth module.

[0360] As another example, the moisture supply hole 2320 may be formed in a long hole shape along the circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin, and the radial width may be formed to gradually widen along the rotation direction of the rotary cleaning unit 140 .

[0361] That is, the moisture supply hole 2320 may include: a first hole 2321, which is formed along the circumferential direction and whose radial width gradually increases from one side of the circumferential direction to the other side; and a second hole 2322, which is connected to the other side of the first hole 2321 and has a diameter larger than the width of the first hole 2321, forming a circular hole shape.

[0362] By the above-mentioned structure, even if the condensed water is located on the water supply hole 2320, at least a part of the water supply hole 2320 can be opened to allow gas to pass through. Therefore, it is possible to discharge steam through the open space, and at least a part of the condensed water can be discharged together due to the pressure of the steam, so that the difference in the pressure and flow rate of the discharged steam is reduced.

[0363] Furthermore, in the present embodiment, the widths of the moisture supply holes 2320 are formed differently, thereby having the effect of enabling small-sized condensed water to be quickly discharged through the wider portion of the moisture supply holes 2320 .

[0364] Therefore, according to the present invention, there is an effect that the amount of water discharged from the water supply hole 2320 can be made uniform.

[0365] On the other hand, the sealing gasket 2330 may be connected to the diffuser cover 2310. For example, the sealing gasket 2330 may be formed integrally with the diffuser cover 2310.

[0366] The sealing gasket 2330 may be formed of a material capable of blocking the passage of moisture.

[0367] The sealing gasket 2330 may be connected to the diffuser cover 2310 to form a ring shape as a whole. Therefore, when observing the bottom surface of the module cover 110, the sealing gasket 2330 and the diffuser cover 2310 may be exposed in a ring shape.

[0368] The above-described configuration has the effect of preventing moisture scattered by the rotation of the dishcloth 150 from flowing into the module cover 110 .

[0369] On the other hand, a pair of diffuser cover 2310 and sealing gasket 2330 may be connected to each other through connection portion 2380. By the configuration as described above, diffuser 2300 and module cover 110 may be easily combined.

[0370] The diffuser cover 2340 is combined with the diffuser housing 2310 to form a space for water to flow inside.

[0371] The diffuser cover 2340 may be combined with an upper portion of the diffuser housing 2310 .

[0372] The diffuser cover 2340 may cover the upper side of the diffuser housing 2310. For example, the diffuser cover 2340 may be formed of a material that can make the diffuser housing 2310 airtight. By configuring as described above, it is possible to prevent steam or high-temperature water flowing inside the diffuser housing 2310 from leaking into the module housing 110.

[0373] The diffuser cover 2340 may be formed in a shape corresponding to the diffuser housing 2310. The diffuser cover 2340 may be formed in a circumferential direction with the rotation centers P1 and P2 of the rotary cleaning unit 2140 as the origin in a shape corresponding to the diffuser housing 2310.

[0374] The diffuser cover 2340 may be formed with a moisture inflow pipe 2350. For example, the moisture inflow pipe 2350 may be formed integrally with the diffuser cover 2340.

[0375] The water inflow pipe 2350 may be formed to extend upward from the diffuser cover 2340. As one example, the water inflow pipe 2350 may be formed to extend upward at a predetermined angle from the diffuser cover 2340. As another example, the water inflow pipe 2350 may be formed to extend upward from the diffuser cover 2340 in a direction perpendicular to the ground.

[0376] The moisture inflow pipe 2350 may be combined with the moisture outlet 213 of the heat generator 200. For example, the moisture inflow pipe 2350 may be formed in a cylindrical shape connected to the diffuser cover 2340. Therefore, the moisture outlet 213 may be inserted into and combined with the moisture inflow pipe 2350.

[0377] The moisture inflow hole 2351 may be formed in the moisture inflow pipe 2350. That is, the moisture inflow pipe 2350 may be formed in a hollow tube shape, and a space in which moisture can flow may be formed.

[0378] The moisture inflow pipe 2350 may be formed of a material that can airtightly seal the moisture discharge port 213. With the above configuration, it is possible to prevent the steam or high-temperature water that has flowed into the diffuser cover 2310 from leaking into the module cover 110.

[0379] On the other hand, generally, a heat generator may form a water film due to the surface tension of water or water vapor. Since this water film is discharged through the discharge port, it may hinder the discharge of steam.

[0380] Specifically, the water film can block the water supplied from the heat generator to the diffuser, and can reduce the flow rate and pressure of the steam flowing into the discharge port. In addition, when the water film is destroyed by the pressure of the steam flowing in the heat generator, the flow rate and pressure of the steam flowing into the diffuser may increase instantly.

[0381] Therefore, the flow rate and pressure of the steam flowing into the diffuser may become uneven, which may cause a problem that the moisture supply to the rag becomes uneven.

[0382] In order to solve this problem, the diffuser 2300 of the present embodiment further includes a guide rod 2360 .

[0383] The guide rod 2360 may be formed to protrude from the diffuser cover 2310 toward the heat generator 200. Specifically, the guide rod 2360 may be formed to protrude from the guide stage 2311 of the diffuser cover 2310 toward the upper side.

[0384] At this time, the guide rod 2360 may be formed to protrude to a height that allows it to be inserted into the water discharge port 213 of the heat generator 200. With the above-described configuration, the guide rod 2360 may break a water film that may be formed on the water discharge port 213.

[0385] For example, the guide rod 2360 may be formed in a truncated cone shape. That is, the guide rod 2360 is formed to protrude in a cone shape, and an inclined surface 2361 having a specified angle may be formed on the upper side. At this time, the upper end of the inclined surface 2361 may be arranged at the uppermost side of the guide rod 2360, and the lower end of the inclined surface 2361 may be arranged to be closer to the water supply hole 2320 than the upper end. With the above-described configuration, the water film destroyed by the guide rod 2360 may generate condensed water, and the condensed water may flow down along the inclined surface 2361 toward the water outlet 213. Therefore, the guide rod 2360 can guide the direction in which the condensed water flows.

[0386] On the other hand, the diffuser 2300 of this embodiment may further include a guide inclined surface 2370 .

[0387] The guide inclined surface 2370 may guide moisture flowing in from the heat generator 200 to the moisture supply hole 2320 .

[0388] The guide inclined surface 2370 may be formed to protrude from the diffuser cover 2310 toward the heat generator 200. Specifically, the guide inclined surface 2370 may be formed to protrude from the bottom surface of the diffuser cover 2310 toward the upper side.

[0389] The guide slope 2370 may be disposed between the guide stage 2311 and the water supply hole 2320. With the above configuration, the water flowing along the guide stage 2311 may be guided to the water supply hole 2320 by the guide slope 2370.

[0390] The guide inclined surface 2370 may be formed to be inclined at a predetermined angle. The guide inclined surface 2370 may be formed circumferentially with the rotation centers P1 and P2 of the rotary cleaning unit 140 as the origin, and one side of the circumferential direction may be formed to be higher than the other side. That is, the guide inclined surface 2370 may be formed to be inclined closer to the ground as one side of the circumferential direction approaches the other side. In addition, the second hole 2322 of the moisture supply hole 2320 may be arranged on the other side of the guide inclined surface 2370 in the circumferential direction.

[0391] By the above-described configuration, condensed water formed when the water film is broken or formed during the flow can flow toward the second hole 2322 having the largest diameter along the guide inclined surface 2370. Therefore, the condensed water can pass through the second hole 2322 without blocking the water supply hole 2320. Alternatively, even if the condensed water blocks the second hole 2322, the gas can pass through the first hole 2321, thereby having an effect of being able to stably spit out steam.

[0392] on the other hand, Fig.23 FIG. 4 shows a bottom view of a wet wipe module for illustrating a fourth embodiment of the present invention, Fig.24 A diagram for explaining a flow rate regulating portion in a wet wipe module according to a fourth embodiment of the present invention is shown.

[0393] Below, refer to Fig.23 and Fig.24 , describing a diffuser according to a fourth embodiment of the present invention.

[0394] The diffuser 3300 of this embodiment includes a diffuser cover 3310 , a moisture supply hole 3320 , a sealing gasket 3330 , a diffuser cover 3340 , and a moisture inlet pipe 3350 .

[0395] On the other hand, in order to avoid repeated description, in this embodiment, the structure and effect of the components not particularly described are the same as those of the diffuser 1300 of the second embodiment of the present invention, and thus the description of the second embodiment can be cited.

[0396] In the diffuser 3300 of the present embodiment, a plurality of moisture supply holes 3320 are formed, and diameters of the moisture supply holes 3320 may be different from each other.

[0397] Specifically, the diameters of the plurality of moisture supply holes 3320 may become larger as they are farther away from the portion connected to the heat generator 3200 .

[0398] By configuring as described above, it can be formed that, in the moisture supply hole 3320 arranged near the moisture inflow hole 3351, even if the flow rate of the discharged water is fast, the diameter for the water to pass through is small, and in the moisture supply hole 3320 arranged far from the moisture inflow hole 3351, even if the flow rate of the discharged water is relatively slow, the diameter for the water to pass through is relatively large.

[0399] Therefore, according to the present invention, there is an effect of being able to make the water discharge amount of the plurality of water supply holes 3320 uniform.

[0400] In addition, in the diffuser 3300 of the present embodiment, the inner space through which water flows becomes narrower as the distance from the portion connected to the heat generator 3200 increases.

[0401] Specifically, the diffuser cover 3340 also includes a flow rate regulating portion 3342 .

[0402] The flow rate adjusting portion 3342 may be formed to protrude from the cover body 3341 toward the diffuser cover 3310. The flow rate adjusting portion 3342 may be formed to protrude and extend downward from the cover body 3341.

[0403] The height of the protrusion of the flow rate regulating portion 3342 may be different depending on the distance between the portion connected to the heat generator 3200. Specifically, the protrusion height of the flow rate regulating portion 3342 may increase as the portion connected to the heat generator 3200 is farther away. As an example, the flow rate regulating portion 3342 may be formed to protrude obliquely downward from the portion where the water inflow hole 3351 is formed. That is, the flow rate regulating portion 3342 may be formed in a shape in which the protrusion height from the portion where the water inflow hole 3351 is formed to the downward gradually increases.

[0404] With the above configuration, the space of the diffuser 3300 through which water can flow can be narrowed as the distance from the portion connected to the water inlet hole 3351 increases. For example, the height of the internal space of the diffuser 3300 can be gradually reduced as the distance from the portion connected to the water inlet hole 3351 increases.

[0405] In addition, the diffuser 3300 has an effect of increasing the flow rate of water as it is farther away from the portion communicating with the water inflow hole 3351 .

[0406] Therefore, according to the present invention, the flow rate of the water discharged from the plurality of water supply holes 3320 can be made uniform, and the amount of water discharged from the plurality of water supply holes 3320 can also be made uniform.

[0407] on the other hand, Fig.25 A bottom view of a wet wipe module is shown for illustrating a fifth embodiment of the present invention.

[0408] Below, refer to Fig.25 , describing a diffuser according to a fifth embodiment of the present invention.

[0409] The diffuser 4300 of this embodiment includes a diffuser cover 4310 , a moisture supply hole 4320 , a sealing gasket 4330 , a diffuser cover 4340 , and a moisture inlet pipe 4350 .

[0410] On the other hand, in order to avoid repeated description, in this embodiment, the structure and effect of the components not particularly described are the same as those of the diffuser 3300 of the fourth embodiment of the present invention, and thus the description of the fourth embodiment can be cited.

[0411] In the diffuser 4300 of the present embodiment, a plurality of moisture supply holes 4320 are formed, and diameters of the moisture supply holes 4320 may be different from each other.

[0412] At this time, at least one of the plurality of moisture supply holes 4320 may be formed along the circumferential direction, and may be formed in a shape in which the radial width gradually increases from one side of the circumferential direction to the other side.

[0413] With the above-described configuration, even if condensed water is located on the water supply hole 4320, at least a portion of the water supply hole 4320 can be opened to allow gas to pass through. Therefore, steam can be discharged through the open space, and at least a portion of the condensed water can be discharged together due to the pressure of the steam, thereby reducing the difference in pressure and flow rate of the discharged steam.

[0414] In addition, in the diffuser 4300 of the present embodiment, the inner space through which water flows becomes narrower as the distance from the portion connected to the heat generator 4200 increases.

[0415] Specifically, the diffuser cover 4340 also includes a flow rate regulating portion 4342 .

[0416] The flow rate adjusting portion 4342 may be formed to protrude from the cover body 4341 toward the diffuser cover 4310. The flow rate adjusting portion 4342 may be formed to protrude and extend downward from the cover body 4341.

[0417] The height of the protrusion of the flow rate regulating portion 4342 may be different depending on the distance between the portion connected to the heat generator 4200. Specifically, the protrusion height of the flow rate regulating portion 4342 may increase as the portion connected to the heat generator 4200 is farther away. As an example, the flow rate regulating portion 4342 may be formed to protrude obliquely downward from the portion where the water inflow hole 4351 is formed. That is, the flow rate regulating portion 4342 may be formed in a shape in which the protrusion height from the portion where the water inflow hole 4351 is formed to the downward gradually increases.

[0418] On the other hand, the vacuum cleaner 1 of the present invention may include an extension pipe 400 .

[0419] The extension pipe 400 may be combined with the cleaner body 500 and the wet mop module 100 .

[0420] For example, the extension pipe 400 may be formed in a long cylindrical shape. Therefore, the inner space of the extension pipe 400 may be communicated with the inner space of the wet cloth module 100. In addition, the extension pipe 400 may be communicated with the suction flow path formed in the suction part of the cleaner body 500.

[0421] When suction is generated by a suction motor (not shown), suction may be provided to the wet rag module 100 through the suction portion and the extension tube 400. Therefore, external dust and air may flow into the cleaner body 500 through the wet rag module 100 and the extension tube 400. In addition, dust and air flowing in through the wet rag module 100 may flow into the cleaner body 500 after passing through the extension tube 400.

[0422] On the other hand, an electric wire may be built in the extension tube 400 . Therefore, the cleaner body 500 and the wet cloth module 100 may be electrically connected through the extension tube 400 .

[0423] On the other hand, the vacuum cleaner 1 of the present invention may include a vacuum cleaner body 500 .

[0424] The vacuum cleaner body 500 may include a suction motor, a dust cylinder, and a battery. The vacuum cleaner body 500 may receive power from the battery to operate the suction motor, and generate suction force by the operation of the suction motor.

[0425] The cleaner body 500 may be formed with a suction passage through which air and dust flowing in from the wet mop module 100 may flow.

[0426] Furthermore, the cleaner body 500 may be provided with at least one cyclone unit, which separates the dust sucked into the inside by using the principle of a dust collector using centrifugal force. Therefore, the air flowing in through the suction flow path can separate the dust along with the spiral flow.

[0427] In addition, the cleaner body 500 is provided with a dust cylinder which can store dust separated from the sucked air by the cyclonic flow.

[0428] Furthermore, the battery can supply power to the wet rag module 100. At this time, the battery can supply power to the driving motor 170 of the wet rag module 100. Furthermore, the battery can supply power to the water pump 133 of the wet rag module 100.

[0429] Reference Figure 1 and Figure 2 The vacuum cleaner 1 of the present invention may include an auxiliary battery cover 600 .

[0430] The auxiliary battery cover 600 can be combined with the wet wipe module 100 or the extension tube 400 to allow the auxiliary battery 700 to be detachably combined. As an example, the auxiliary battery cover 600 is combined with the connection tube 180 of the wet wipe module 100, and the auxiliary battery 700 can be detachably accommodated inside the auxiliary battery cover 600.

[0431] The auxiliary battery cover 600 can electrically connect the auxiliary battery 700 to the heat generator 200. With the above-described configuration, the electric energy of the auxiliary battery 700 can be supplied to the heat generator 200 which requires a high power supply.

[0432] Alternatively, the auxiliary battery cover 600 may connect a battery (not shown) provided in the cleaner body 500 and the auxiliary battery 700 in series. With the above configuration, when high power supply is required, such as when the heat generator 200 is operated, power can be stably supplied.

[0433] Alternatively, the auxiliary battery cover 600 may connect the battery provided in the cleaner body 500 and the auxiliary battery 700 in parallel. With the above-described configuration, the use time of the cleaner 1 can be extended.

[0434] Reference Figure 1 and Figure 2 The vacuum cleaner 1 of the present invention may include an auxiliary battery 700 .

[0435] The auxiliary battery 700 may store electric energy internally. For example, the auxiliary battery 700 may be a secondary battery.

[0436] The auxiliary battery 700 may supply power to the wet wipe module 100. Specifically, the auxiliary battery 700 may supply power to the heat generator 200. At this time, the auxiliary battery 700 and the heat generator 200 may be electrically connected.

[0437] Although the present invention has been described in detail above through specific embodiments, this is only for the purpose of specifically illustrating the present invention and the present invention is not limited thereto. It is obvious that the present invention can be modified or improved within the technical concept of the present invention by a person skilled in the art.

[0438] Simple modifications or changes of the present invention all belong to the field of the present invention, and the specific protection scope of the present invention will be clarified according to the attached claims.

Claims

1. A wet rag module for a vacuum cleaner, which is used to wipe and clean foreign matter on the floor, characterized in that: include: Module cover; A water tank, combined with the module cover, storing water inside the water tank; At least one rotating cleaning unit is disposed on the lower side of the module cover, and the rag can be combined with the at least one rotating cleaning unit; a heat generator for heating water supplied from the water tank; as well as a diffuser, disposed at a lower side of the heat generator, for supplying the moisture heated in the heat generator to the rag; The diffuser comprises: a diffuser cover, coupled to the module cover; and a moisture supply hole formed in the diffuser cover to discharge the moisture heated in the heat generator; A plurality of the moisture supply holes are formed along the circumferential direction, and diameters of the moisture supply holes are different from each other.

2. The wet rag module of the vacuum cleaner according to claim 1, characterized in that: The diffuser is connected to the heat generator; The diameters of the plurality of moisture supply holes increase as they are farther away from a portion connected to the heat generator.

3. The wet rag module of the vacuum cleaner according to claim 1, wherein: The diffuser further includes a guide rib, which is formed to protrude and extend from the diffuser cover toward the lower side and is formed along a circumferential direction.

4. The wet rag module of the vacuum cleaner according to claim 1, wherein: The diffuser further includes a condensate drainage portion, and the condensate drainage portion is formed to be inclined downward from the diffuser cover.

5. The wet rag module of the vacuum cleaner according to claim 1, characterized in that: The diffuser is connected to the heat generator, and an internal space of the diffuser through which water flows becomes narrower as the portion connected to the heat generator becomes farther away.

6. The wet rag module of a vacuum cleaner according to claim 1, wherein: The diffuser further includes a diffuser cover, which is combined with the diffuser cover to form a space inside for water to flow.

7. The wet wipe module of the vacuum cleaner according to claim 6, wherein: The diffuser cover comprises: a cover body, covering the diffuser cover; and The flow rate adjusting portion is formed to protrude from the cover body toward the diffuser cover body.

8. The wet rag module of the vacuum cleaner according to claim 7, characterized in that: The diffuser is connected to the heat generator; The protruding height of the flow rate adjusting portion varies according to the distance between the portion connected to the heat generator.

9. The wet rag module of the vacuum cleaner according to claim 7, characterized in that: The diffuser is connected to the heat generator; The protruding height of the flow rate regulating portion increases as it is away from the portion connected to the heat generator.

10. The wet rag module of the vacuum cleaner according to claim 1, characterized in that: The moisture supply hole is formed in a long hole shape along a circumferential direction.

11. The wet rag module of the vacuum cleaner according to claim 10, characterized in that: The diffuser is connected to the heat generator; The moisture supply hole is formed along the circumferential direction, and is formed so that the radial diameter increases along the circumferential direction.

12. The wet wipe module of a vacuum cleaner according to claim 10, wherein: The diffuser further includes a guide rod, which is formed to protrude from the diffuser cover toward the heat generator and removes a water film generated in the heat generator.

13. The wet wipe module of a vacuum cleaner according to claim 10, wherein: The diffuser further includes a guide inclined surface which guides moisture flowing in from the heat generator to the moisture supply hole.

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