Wet wipe module of dust collector

Abstract

The present invention relates to a wet cleaning cloth module of a dust collector for cleaning by wiping foreign matters on the ground, and the wet cleaning cloth module further comprises a drying flow path for supplying dry external air between a moisture supply hole and a suction inlet so as to prevent moisture sprayed from the moisture supply hole for supplying moisture to the cleaning cloth from flowing into the suction inlet of the wet cleaning cloth module. Therefore, the wet cleaning cloth module and the dust collection barrel of the dust collector main body can be prevented from being polluted.

Description

TECHNICAL FIELD

[0001] The present application relates to a dust collector, and more particularly, to a wet cloth module of a dust collector that sprays moisture to a cloth and then sucks or wipes dust or foreign substances in a cleaning area. BACKGROUND

[0002] A dust collector is an apparatus that cleans by sucking or wiping dust or foreign substances in a cleaning area.

[0003] Such a dust collector can be classified into a manual dust collector that cleans while a user directly moves the dust collector and an automatic dust collector that cleans while autonomously traveling.

[0004] Also, according to the form of the dust collector, the manual dust collector can be classified into a canister type, an upright type, a stick type, and the like.

[0005] A method of cleaning a floor is roughly classified into dry cleaning and wet cleaning. The dry cleaning is a method of cleaning by sweeping or sucking dust, and the existing vacuum cleaner belongs to this category. The wet cleaning is a method of cleaning by wiping dust with a wet cloth.

[0006] In the past, a dry type dedicated dust collector was used for dry cleaning, and a wet type dedicated dust collector was used for wet cleaning. However, there was a problem in that two types of dust collectors had to be purchased in order to clean various types of floors. In order to solve the above problem, a method of having one main body, a dry cleaning module, and a wet cleaning module, installing the dry cleaning module on the main body when dry cleaning, and installing the wet cleaning module (wet cloth module) on the main body when wet cleaning was developed.

[0007] However, in the case of wet cleaning, in the case where foreign substances are stuck to the floor, even if the wet cloth is rotated and wiped on the floor, the foreign substances can remain.

[0008] Also, in the case where microorganisms or the like grow on the floor, even if the wet cloth is rotated and wiped on the floor, there is a problem in that the microorganisms cannot be completely killed.

[0009] In order to solve this problem, a method of supplying high-temperature water or steam to the cloth by heating water with a heater can be considered.

[0010] At this time, the steam wet mop module includes a water tank storing water, a heater heating the water to generate steam, a mop receiving the water or steam to wipe the floor, etc. Among them, in order to facilitate replacement, it is preferable to configure each component as one assembly. For example, in the case of configuring the water tank or the heater in the main body, when dry cleaning is performed, these components become unnecessary components, and there is a problem that cleaning is inconvenient due to the weight of the water tank or the heater. Therefore, from the convenience of cleaning, the convenience of module replacement, and the perspective of space utilization, it is preferable to provide the water tank or the heater in the steam wet mop module rather than the cleaner main body.

[0011] On the other hand, the cleaner having the steam generator in general receives power through a wired method, and thus is able to continuously operate the steam generator to supply steam.

[0012] On the other hand, Korean Patent Publication No. 10-2023-0017096A (2023.02.03) discloses a steam cleaner having a spray portion on a housing to supply steam to a rotating mop.

[0013] In the above steam cleaner, the spray portion in which the spray port is formed is provided in the lower housing of the cleaner nozzle, and is able to spray steam to the rotating unit (rotating plate).

[0014] On the other hand, the above steam cleaner can suck air including dust through the suction port while supplying steam to the mop.

[0015] At this time, a part of the moisture supplied to the mop can be sucked from the suction port, and the dust and the moisture are mixed together on the suction port, and thus there is a problem that contamination occurs around the suction port.

[0016] Alternatively, the moisture flowing into the suction port flows into the inside of the dust collection tank of the cleaner main body, and thus there is a problem that bacteria breeding or decay occurs in the inside of the dust collection tank. SUMMARY

[0017] TECHNICAL PROBLEM

[0018] The present invention is made to improve the problems of the existing wet mop module of the cleaner as described above, and aims to provide a wet mop module of a cleaner that supplies high-temperature water or steam to a mop to enhance the sterilization and foreign matter removal effects.

[0019] Also, the aim is to provide a wet mop module of a cleaner that is able to prevent moisture and dust from being mixed together to cause contamination around the suction port that sucks dust.

[0020] Also, the aim is to provide a wet mop module of a cleaner that is able to prevent moisture supplied to the mop from flowing into the inside of the dust collection tank of the cleaner main body to cause bacteria breeding or decay in the inside of the dust collection tank.

[0021] Means for solving the problem

[0022] To achieve the above object, in a wet mop module of a vacuum cleaner that wipes foreign substances on a floor to perform cleaning, dry air can be supplied to a suction port of the wet mop module.

[0023] Specifically, the wet mop module of the vacuum cleaner can include a module housing, a water tank coupled to the module housing and storing water inside, at least one rotating cleaning part disposed at a lower side of the module housing to which a mop is coupled, a heat generator that heats water supplied from the water tank, and a diffuser disposed at a lower side of the heat generator to supply moisture heated in the heat generator to the mop, the module housing including a lower housing formed with a suction port through which air containing dust flows, the diffuser including a diffuser housing coupled to a lower side surface of the lower housing and a pair of moisture supply holes formed in the diffuser housing to spray the moisture heated in the heat generator, and a dry flow path through which air flows being formed between the module housing and the diffuser housing.

[0024] At this time, the dry flow path can include a dry air spray outlet disposed between the suction port and the pair of moisture supply holes to spray air.

[0025] With this configuration, air flowing through the dry flow path can dry the moisture sprayed from the moisture supply holes.

[0026] Also, the dry flow path can further include a dry air flow inlet disposed at a rear of the lower housing, through which air flows.

[0027] With this configuration, dry air can flow into the dry flow path.

[0028] A guide rib that guides the flow of air flowing through the dry flow path can be protrusively formed at a lower side surface of the lower housing.

[0029] Thereby, air flowing through the dry flow path can be guided to the suction port.

[0030] On the other hand, a blocking member for shielding a front space in which the suction port is disposed and a rear space in which the moisture supply holes are disposed so as to block the moisture sprayed from the moisture supply holes from spreading to the suction port can be protrusively formed at a lower side surface of the module housing.

[0031] At this time, the moisture sprayed from the moisture supply hole and the air passing through the drying flow path can flow into the barrier. As a result, the moisture condensed on the barrier can be dried by the air passing through the drying flow path.

[0032] On the other hand, the drying flow path can be disposed behind the barrier.

[0033] Also, the suction inlet can be disposed in front of the barrier.

[0034] Therefore, it is possible to dry the moisture in a state in which the dust flowing into the suction inlet and the moisture sprayed from the moisture supply hole are mixed by the barrier.

[0035] In the drying flow path, the interval between the module housing and the diffuser housing can be narrowed as it approaches the suction inlet.

[0036] With this configuration, the flow rate of the air sprayed from the drying flow path is increased, and thus the drying effect can be improved.

[0037] On the other hand, in order to achieve the above-described object, the dust collector that cleans by wiping foreign substances on the floor can further include a dust collector body having a suction motor for generating a suction force of suction air.

[0038] At this time, when the suction motor is operated, the air passing through the drying flow path can flow into the suction inlet.

[0039] Also, when the suction motor is operated, the air sprayed from the drying flow path can be supplied to the moisture flowing from the cloth to the suction inlet.

[0040] Therefore, the user can supply moisture to the cloth while suctioning dust by operating only the suction motor, and the moisture flowing from the cloth to the suction inlet can be dried by the suction force of the suction motor.

[0041] Effects of the Invention

[0042] As described above, the wet cloth module of the dust collector according to the present application has an effect of strengthening the sterilization and foreign substance removal effects by supplying high-temperature water or steam to the cloth through the heater.

[0043] Also, it is possible to dry the moisture by supplying dry air, thereby preventing the moisture supplied to the cloth from flowing into the suction inlet for suctioning dust, and having an effect of preventing contamination around the suction inlet after the moisture and dust are mixed together.

[0044] Also, by evaporating and scattering the moisture supplied to the cloth, the moisture is blocked from flowing into the inside of the dust collecting bucket, thereby having an effect of preventing the breeding of bacteria or the rotting of the moisture inside the dust collecting bucket. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a perspective view of a dust collector according to an embodiment of the present application.

[0046] Figure 2 is a perspective view of a wet cloth module according to an embodiment of the present application, with the upper case removed.

[0047] Figure 3 is a plan view of Figure 2 .

[0048] Figure 4 is a bottom view of Figure 2 .

[0049] Figure 5 is a view for explaining a diffuser in a wet cloth module according to an embodiment of the present application.

[0050] Figure 6 is a view for explaining a bottom of a lower case in a wet cloth module according to an embodiment of the present application.

[0051] Figure 7 is a view for explaining the flow of moisture and air in a wet cloth module according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0053] The present application can have various modifications and can have various embodiments, and a specific embodiment is shown in the drawings and described in detail. This is not intended to limit the present application to a specific embodiment, and should be interpreted to include all modifications, equivalents, and even alternatives within the spirit and technical scope of the present application.

[0054] Figure 1 is a perspective view of a dust collector according to an embodiment of the present application, Figures 2 to 4 is a view for explaining a wet cloth module according to an embodiment of the present application, Figure 5 is a view for explaining a diffuser in a wet cloth module according to an embodiment of the present application.

[0055] Reference Figures 1 to 5According to an embodiment of the present invention, a dust collector 1 can include a dust collector body 300 having a suction motor for generating a suction force, a wet mop module 100 connected to the dust collector body 300 and sucking air and foreign substances from a floor and wiping the floor to clean, and an extension pipe 200 connecting the dust collector body 300 and the wet mop module 100.

[0056] According to an embodiment of the present invention, the wet mop module 100 can include a module housing 110 and a connection pipe 180 movably connected to the module housing 110.

[0057] For example, the wet mop module 100 according to an embodiment of the present invention can be connected to a hand-held dust collector or a floor cleaner.

[0058] That is, the wet mop module 100 can be detachably connected to the dust collector body 300 or the extension pipe 200. The wet mop module 100 is connected to the dust collector body 300 or the extension pipe 200, so that a user can clean a floor using the wet mop module 100. At this time, the dust collector body 300 to which the wet mop module 100 is connected can separate dust in air by a multi-cyclone method.

[0059] The wet mop module 100 can receive power from the dust collector body 300 to operate. Specifically, the wet mop module 100 can receive power from a battery provided in the dust collector body 300 to operate.

[0060] The dust collector body 300 to which the wet mop module 100 is connected includes a suction motor (not shown), so that a suction force generated by the suction motor (not shown) can be applied to the wet mop module 100.

[0061] Therefore, in the embodiment, the wet mop module 100 can perform a function of sucking foreign substances and air from a floor and guiding the same to the dust collector body 300.

[0062] The connection pipe 180 is connected to a central portion of a rear side of the module housing 110, and can guide the sucked air to the dust collector 1, but is not limited thereto.

[0063] To help understanding, directions in the embodiment are defined as follows. A portion of the wet mop module 100 to which the connection pipe 180 is connected can be a rear side (rear) of the wet mop module 100, and an opposite portion of the portion to which the connection pipe 180 is connected can be a front side (front) of the wet mop module 100. In addition, a direction connecting the front and the rear can be referred to as a front-rear direction.

[0064] Also, a left side of the wet mop module 100 can be referred to as a left side (left side) and a right side of the wet mop module 100 can be referred to as a right side (right side) when the suction port 113a is viewed from the connection pipe 180. In addition, a direction connecting the left side and the right side can be referred to as a left-right direction. The left-right direction can mean a direction perpendicular to the front-rear direction on a horizontal plane.

[0065] Also, a direction close to the ground can be referred to as a lower side or a lower side and a direction away from the ground can be referred to as an upper side or an upper side when the wet mop module 100 is placed on the ground, that is, when the mop 150 is placed on the ground so as to be able to wipe the ground.

[0066] The wet mop module 100 can further include a rotating cleaning part 140 rotatably provided at a lower side of the module housing 110. For example, the rotating cleaning part 140 can be a rotating plate formed in a disc shape.

[0067] As an example, the rotating cleaning part 140 can be provided in a pair and arranged in the left-right direction. At this time, the pair of rotating cleaning parts 140 can be individually rotated. As an example, the rotating cleaning part 140 can include a first rotating cleaning part 141 and a second rotating cleaning part 142.

[0068] The rotating cleaning part 140 can be combined with the mop 150. As an example, the mop 150 can be formed in a disc shape. The mop 150 can be provided with a pair including a first mop and a second mop.

[0069] In a state in which the mop 150 is placed on the ground, the mop 150 is tightly attached to the ground due to a load of the wet mop module 100, so that a frictional force between the mop 150 and the ground is increased.

[0070] The module housing 110 forms an outer shape of the wet mop module 100, and can be formed with a suction port 113a for suction of air. As an example, the suction port 113a can be formed at a lower front end of the module housing 110. The suction port 113a can be formed so as to extend in the left-right direction of the module housing 110.

[0071] The module housing 110 can include a lower housing 111 and an upper housing 112 coupled to an upper side of the lower housing 111.

[0072] The rotating cleaning part 140 is mounted to the lower housing 111, and the lower housing 111 can form an outer shape of the wet mop module 100.

[0073] The lower housing 111 can include a bottom portion combined with the rotary cleaning portion 140. At this time, the lower side of the bottom portion is configured to face the floor in a state in which the wet cloth module 100 is placed on the floor, and the upper side of the bottom portion can be provided with the moisture supply portion 130, the heat generator 136, and the cloth driving motor 170.

[0074] The lower housing 111 can be formed with a suction port 113a. Specifically, the bottom portion of the lower housing 111 can be formed with the suction port 113a. The suction port 113a indicates a space into which dust-containing air can flow. With this configuration, when the suction motor (not shown) of the cleaner main body 300 is operated, dust present around the floor and air can be suctioned into the inside of the flow path of the wet cloth module 100 through the suction port 113a.

[0075] The lower housing 111 can be provided with a circuit board installation portion in which a printed circuit board 190 for controlling the cloth driving motor 170 is installed. As an example, the circuit board installation portion can be formed in a hook shape extending upward from the lower housing 111.

[0076] Although not restrictive, the circuit board installation portion can be located at one side in the lower housing 111. As an example, the printed circuit board 190 can be disposed at a position adjacent to an operation portion operable by a user. Accordingly, a switch installed in the printed circuit board 190 can sense an operation of the operation portion.

[0077] The lower housing 111 can be provided with a diffuser 160 therethrough. Thereby, water or steam (water vapor) passing through the heat generator 136 and the diffuser 160 can be supplied to the cloth 150.

[0078] On the other hand, in the present application, the bottom portion (lower side) of the lower housing 111 can be formed with a drying flow path 163. Specifically, the bottom portion (lower side) of the lower housing 111 can be concavely formed at a central portion in the left-right direction. In addition, the space concavely formed as described above is disposed between the pair of rotary cleaning portions 140. Also, the space concavely formed as described above is covered by the diffuser 160 described later.

[0079] Accordingly, air can flow in the space (i.e., the drying flow path 163) formed between the bottom portion of the lower housing 111 and the diffuser 160, as the bottom portion of the lower housing 111 is concavely formed.

[0080] On the other hand, the bottom (lower side) of the lower case 111 can be formed with an inclined portion. Specifically, the bottom (lower side) of the lower case 111 wrapping the drying flow path 163 can be formed as an inclined surface 111b of a predetermined angle or a predetermined curvature. At this time, as the bottom (lower side) of the lower case 111 is recessed, the depth of the recess gradually becomes shallower as it approaches the front of the drying flow path 163 from the middle of the front and rear directions of the drying flow path 163. That is, in the drying flow path 163, the interval between the module case 110 and the diffuser case 161 gradually narrows as it approaches the suction port 113a.

[0081] Thereby, it is possible to increase the flow rate of the air ejected from the drying flow path 163. With this configuration, the flow rate of the air ejected from the drying flow path 163 is increased, and thus it is possible to increase the drying effect on moisture.

[0082] On the other hand, as Figure 6 It is shown that, in the present application, a guide rib 111a for guiding the flow of air flowing through the drying flow path 163 described later can be protrudingly formed on the bottom (lower side) of the lower case 111.

[0083] The guide rib 111a can be protrudingly formed on the inclined surface 111b. For example, the guide rib 111a can be formed in a circular arc shape having a predetermined curvature. Also, the guide rib 111a can be configured in a manner that a pair of guide ribs 111a are symmetrical to each other.

[0084] With the pair of guide ribs 111a, the air flowing through the drying flow path 163 can be divided into three directions. Among them, the air guided to the space between the pair of guide ribs 111a can be ejected toward the central portion 114a of the barrier 114 described later. Also, the air guided to the space between the side wall of the drying flow path 163 and the one side guide rib 111a can be ejected toward the extension portion 114b of the barrier 114 described later.

[0085] The upper case 112 covering the upper side of the lower case 111 can constitute the outer shape of the wet cloth module 100 of the present application.

[0086] Also, the module case 110 can be formed with a suction flow path communicating with the suction port 113a to guide the air flowing into the suction port 113a to the cleaner main body 300.

[0087] The suction flow path can be configured at the upper central portion of the lower case 111, and the end portion thereof can be connected to the connection pipe 180.

[0088] Therefore, by configuring the suction flow path, the suction port 113a can extend in a substantially straight line in the front and rear directions, so it is possible to achieve minimization of the length of the suction port 113a, and thus it is possible to achieve minimization of the flow path loss in the wet cloth module 100.

[0089] The front side portion of the suction flow path can communicate with the suction port 113a. The suction flow path can be configured to be inclined upward as it approaches the rear side from the front end portion. That is, the upper side surface of the suction flow path can be inclined at a predetermined angle with respect to the ground. Also, the upper side surface of the suction flow path can be inclined at a predetermined angle with respect to the bottom of the lower housing 111.

[0090] Therefore, the suction flow path can be formed such that the height of the front side portion is lower than that of the rear side portion.

[0091] According to the present embodiment, the height of the front side portion of the above-described suction flow path is low, so there is an advantage that the height of the front side portion in the overall height of the above-described wet cloth module 100 can be reduced. The lower the height of the above-described wet cloth module 100, the higher the possibility that the narrow space under furniture or a chair or the like into which the wet cloth module 100 extends to clean can be cleaned.

[0092] On the other hand, in the present embodiment, a heat generator 136 can be disposed on the upper side of the suction flow path. With this configuration, the heat generator 136 can be stably supported in a state of being disposed at a predetermined angle with respect to the ground.

[0093] A barrier 114 is disposed on the lower side surface (lower side surface of the bottom) of the lower housing 111. The barrier 114 shields the front space in which the suction port 113a is disposed from the rear space in which the cloth 150 is disposed, so that the moisture released from the cloth 150 can be blocked from spreading to the suction port 113a.

[0094] For example, the barrier 114 can include a central portion 114a and an extension portion 114b. At this time, a pair of extension portions 114b are connected symmetrically on both side end portions with the central portion 114a as a reference. In addition, the extension portion 114b can be formed in an arc shape so as to wrap around the circular cloth 150.

[0095] On the other hand, the barrier 114 of the present embodiment can be disposed rearward of the suction port 113a and can be disposed forward of the drying flow path 163. Specifically, the central portion 114a can be disposed rearward of the suction port 113a. In addition, the extension portion 114b can be disposed forward of the moisture supply hole 162. Also, the central portion 114a can be disposed forward of the drying flow path 163.

[0096] That is, the suction port 113a can be disposed forward of the barrier 114, and the moisture supply hole 162 and the drying flow path 163 can be disposed rearward of the barrier 114.

[0097] With this configuration, the moisture sprayed from the moisture supply hole 162 can be blocked from flowing toward the suction port 113a side by the barrier 114. In addition, air passing through the drying flow path 163 can flow into the barrier 114.

[0098] Therefore, the moisture whose flow is blocked by the blocking member 114 or the moisture condensed on the blocking member 114 can be dried by the air ejected from the drying flow path 163 .

[0099] As a result, the moisture can be dried in a state where the dust flowing into the suction port 113 a and the moisture sprayed from the moisture supply hole 162 are blocked by the stopper 114 and mixed with each other.

[0100] A plurality of rollers may be provided on the lower side of the bottom of the lower housing 111 to enable the wet cloth module 100 to move smoothly.

[0101] For example, the front roller 115 may be located in front of the rag 150 in the lower housing 111. The front roller 115 may include a first roller 115a and a second roller 115b. The first roller 115a and the second roller 115b may be separated in the left and right directions.

[0102] The first roller 115a and the second roller 115b may be rotatably connected to a shaft. The shaft may be fixed to the bottom side of the lower housing 111 in a state of being arranged to extend in the left-right direction.

[0103] The distance between the shaft and the front end of the lower housing 111 is longer than the minimum distance between the rag 150 and the front end of the lower housing 111 .

[0104] As an example, at least a portion of the rotating cleaning unit 140 may be located between the axis of the first roller 115 a and the axis of the second roller 115 b .

[0105] According to this configuration, the rotary cleaning unit 140 can be located as close to the suction port 113a as possible, increasing the area cleaned by the rotary cleaning unit 140 on the floor where the wet mop module 100 is located, thereby improving floor cleaning performance.

[0106] In this embodiment, the first roller 115 a and the second roller 115 b are coupled to the lower side of the lower housing 111 , thereby improving the mobility of the wet cloth module 100 .

[0107] A third roller 116 may also be provided on the lower housing 111. Thus, the first roller 115a and the second roller 115b together with the third roller 116 may support the wet rag module 100 at three points. In this case, the third roller 116 may be located behind the rag 150 to avoid interference with the rag 150.

[0108] A cooling air inflow port (not shown) can be formed in the lower case 111. External air can flow into the inside of the module case 110 through the cooling air inflow port (not shown). Also, the cooling air inflow port (not shown) can be formed in the front side wall of the lower case 111. With this configuration, the amount of air inflow can be increased when the wet cloth module 100 is moved forward by the user's operation.

[0109] A cooling air outflow port (not shown) can be formed in the upper case 112. Through the cooling air outflow port (not shown), air inside the module case 110 can be discharged to the outside. Also, the cooling air outflow port (not shown) can be formed in both side walls of the upper case 112. With this configuration, it is possible to induce air flowing in through the cooling air inflow port (not shown) to flow toward the cooling air outflow port (not shown) via the cloth driving motor 170, thereby having the advantage of preventing the cloth driving motor 170 from overheating.

[0110] In addition, the cooling air outflow port (not shown) can be disposed farther from the ground than the cooling air inflow port (not shown) with the lower case 111 placed on the ground as a reference. With this configuration, air heated inside the module case 110 rises, thereby being efficiently discharged from the cooling air outflow port (not shown).

[0111] The wet cloth module 100 can further include a water tank 120 so that moisture can be supplied to the cloth 150.

[0112] The water tank 120 can be detachably connected to the module case 110. Specifically, the water tank 120 can be coupled to the upper side of the upper case 112. For example, the water tank 120 can be installed in a water tank installation portion formed in the upper side of the upper case 112.

[0113] Also, the water tank 120 can be disposed in the upper portion of the heat generator 136. Specifically, the water tank 120 is disposed separately from the heat generator 136 in the upper portion of the heat generator 136. That is, the water tank 120 can be disposed in the upper portion of the heat generator 136 with the upper case 112 interposed therebetween.

[0114] The water tank 120 can form the appearance of the wet cloth module 100 in a state in which the water tank 120 is installed in the module case 110.

[0115] In fact, the entire upper side wall of the water tank 120 can form the upper appearance of the wet cloth module 100. Therefore, the user can visually confirm whether the water tank 120 is installed in the module case 110.

[0116] The module case 110 can further include a water tank detachment button which is operated in order to detach the water tank 120 in a state in which the water tank 120 is installed to the module case 110. For example, the water tank detachment button can be located in the central portion in the wet cloth module 100. Accordingly, there is an advantage in that a user can easily recognize and operate the water tank detachment button.

[0117] In a state in which the water tank 120 is installed to the module case 110, water of the water tank 120 can be supplied to the cloth 150. Specifically, water stored in the water tank 120 can be supplied to the cloth 150 through the moisture supply portion 130.

[0118] Specifically, a space capable of storing water is formed in the inside of the water tank 120. Water stored in the water tank 120 can be supplied to the heat generator 136 through at least one pipe (hose). Water flowing into the heat generator 136 can be heated and can also be phase-changed into steam (water vapor) according to a user's selection. Water or steam heated in the heat generator 136 can be supplied to the cloth 150 through the diffuser 160.

[0119] The water tank 120 includes a water supply port. The water supply port is a hole through which water flows into the inside of the water tank 120. For example, the water supply port can be formed in the side surface of the water tank 120.

[0120] The water tank 120 includes a water discharge port. The water discharge port is a hole through which water stored in the water tank 120 is discharged. Water discharged from the water discharge port can flow toward the heat generator 136. The water discharge port can be formed in the lower surface of the water tank 120.

[0121] The water tank 120 includes a ventilation hole. The ventilation hole is a hole through which air can flow into the inside of the water tank 120. When water stored in the inside of the water tank 120 is discharged to the outside, the pressure in the inside of 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 ventilation hole. For example, the ventilation hole can be formed in the upper end of the water tank 120.

[0122] The wet cloth module 100 of the present application can include a moisture supply portion 130 which is formed with a flow path that supplies water flowing from the water tank 120 to the cloth 150.

[0123] Specifically, the moisture supply portion 130 can include a water tank connection portion 131 that allows water of the water tank 120 to flow into the inside of the module case 110, a water inflow pipe 132 that supplies water flowing into the water tank connection portion 131 to a water pump 133, a guide pipe 134 that supplies water of the water pump 133 to a connector, and a water supply pipe 135 that supplies water flowing into the above-described connector to the heat generator 136.

[0124] The water tank connection portion 131 can operate a valve (not shown) in the water tank 120, and water can flow through the water tank connection portion 131.

[0125] The water tank connecting part 131 can be coupled to the lower side of the upper case 112, and a portion thereof can protrude upward after passing through the upper case 112.

[0126] The water tank connecting part 131 protruding upward enters the inside of the water tank 120 after passing through the discharge port of the water tank 120 when the water tank 120 is placed on the upper case 112.

[0127] The upper case 112 can be provided with a seal member for preventing water discharged from the water tank 120 from leaking around the water tank connecting part 131. As an example, the seal member can be formed of a rubber material, and can be coupled to the upper case 112 on the upper side of the upper case 112.

[0128] The upper case 112 can be provided with a water pump 133 for controlling water discharged from the water tank 120.

[0129] The water pump 133 can provide a flow force of water. The water pump 133 can include a first connection port for connecting the water inflow pipe 132 and a second connection port for connecting the guide pipe 134. At this time, the first connection port is an inlet and the second connection port is an outlet with the water pump 133 as a reference.

[0130] The water pump 133 is a pump that operates in a manner that an internal valve body expands or shrinks as it is operated to thereby communicate the first connection port and the second connection port, and can be implemented by a well-known structure, so a detailed description thereof will be omitted.

[0131] The water supply pipe 135 can connect the above-described connector and a water inflow port of the heat generator 136. For example, the water supply pipe 135 can be a pair of pipes branched from the above-described connector.

[0132] Accordingly, water supplied to the water inflow pipe 132 flows to the guide pipe 134 after flowing into the inside of the water pump 133. The water flowing to the guide pipe 134 flows to the water supply pipe 135 through the connector. In addition, the water flowing to the water supply pipe 135 is supplied to the heat generator 136.

[0133] The heat generator 136 is a device that heats water. The heat generator 136 is disposed inside the module case 110. Specifically, the heat generator 136 is disposed on the upper side of the lower case 111.

[0134] On the other hand, in the present application, the heat generator 136 is disposed to be inclined. Specifically, the bottom of the heat generator 136 can be disposed to be at a predetermined angle α with respect to the ground with the state in which the module case 110 is placed on the ground as a reference.

[0135] The specific structure and effects of the heat generator 136 of the present application will be described later.

[0136] The diffuser 160 is configured to spray water of the water tank 120 toward the cloth 150.

[0137] Specifically, the diffuser 160 includes at least one moisture supply hole 162, and can supply moisture sprayed from the heat generator 136 through the moisture supply hole 162 to the cloth 150.

[0138] The diffuser 160 can be accommodated in a space formed inside the module housing 110, and a portion of the diffuser 160 can be exposed outside the module housing 110 via a nozzle hole (not shown) formed in the module housing 110.

[0139] A pair of diffusers 160 is installed in the module housing 110, and can be arranged in left and right directions. Also, the pair of diffusers 160 arranged in the left and right directions can be formed in a symmetrical manner (mirror image) with respect to each other.

[0140] The diffuser 160 can be connected with the heat generator 136 to supply moisture flowing through the heat generator 136 to the cloth 150.

[0141] The specific structure and effects of the diffuser 160 of the present application will be described later.

[0142] The rotating cleaning part 140 can receive power from the cloth driving motor 170 to rotate. For example, the rotating cleaning part 140 can be a rotating plate. The rotating cleaning part 140 can be formed in a disc shape, and the cloth 150 can be attached to a lower surface thereof.

[0143] At this time, the disc-shaped rotating cleaning part 140 can be arranged in parallel with the ground in a state in which the wet cloth module 100 is placed on the ground. Or the disc-shaped rotating cleaning part 140 can be arranged in parallel with the bottom of the lower housing 111.

[0144] As an example, the rotating cleaning part 140 can be positioned behind the suction inlet 113a at the lower side of the module housing 110.

[0145] Therefore, when cleaning is performed while the wet cloth module 100 is moved forward, foreign substances and air on the ground can be sucked through the suction inlet 113a, and then the ground can be wiped by the cloth 150.

[0146] At least one rotating cleaning part 140 can be provided at the lower side of the module housing 110. For example, the rotating cleaning part 140 can include a first rotating cleaning part 141 connected with the first cloth driving motor 171 and for attaching a first cloth, and a second rotating cleaning part 142 connected with the second cloth driving motor 172 and for attaching a second cloth.

[0147] Specifically, the rotary cleaning part 140 can include an outer side body in a circular ring shape, an inner side body located in a central region of the outer side body and connected to an inner circumferential surface of the outer side body, and a plurality of connecting ribs connecting an outer circumferential surface of the inner side body and the inner circumferential surface of the outer side body.

[0148] On the other hand, the rotary cleaning part 140 can include an attachment unit to which the cloth 150 is attached. As an example, the attachment unit can be a Velcro.

[0149] The rotary cleaning part 140 can be disposed at a lower side of the lower housing 111. That is, the rotary cleaning part 140 can be disposed outside the module housing 110.

[0150] Also, the rotary cleaning part 140 can be connected with the cloth driving motor 170 to thereby receive power. For example, the rotary cleaning part 140 can be connected with the cloth driving motor 170 through at least one gear, and can be rotated by the operation of the cloth driving motor 170.

[0151] The rotary cleaning part 140 can include a first rotary cleaning part 141 and a second rotary cleaning part 142. For example, in a state in which the wet cloth module 100 is placed on the floor, the first rotary cleaning part 141 can denote the rotary cleaning part 140 disposed at the left side, and the second rotary cleaning part 142 can denote the rotary cleaning part 140 disposed at the right side, with the suction inlet 113a as a reference, but is not limited thereto and can be swapped left and right.

[0152] In the present embodiment, the rotation center of the first rotary cleaning part 141 and the rotation center of the second rotary cleaning part 142 are disposed apart in the left-right direction.

[0153] That is, the rotation centers of the rotary cleaning parts 140 can be symmetrically disposed with each other with the center line dividing the left-right direction length of the module housing 110 as a reference.

[0154] Also, the rotation centers of the rotary cleaning parts 140 can be located at positions further apart from the front end of the module housing 110 than the central axis dividing the front-back length of the module housing 110. This is to prevent the rotary cleaning parts 140 from blocking the suction inlet 113a.

[0155] The distance between the rotation center of the first rotary cleaning part 141 and the rotation center of the second rotary cleaning part 142 can be formed to be greater than the diameter of the cloth 150. This is to reduce mutual friction that occurs when the first and second cloths interfere with each other during rotation, and to prevent the cleanable area from being reduced by an amount corresponding to the portion where interference occurs.

[0156] The cloth 150 can wipe the floor by a rotational motion.

[0157] The cloth 150 can be coupled to the lower side of the rotating cleaning part 140 so as to face the floor.

[0158] The cloth 150 is configured to have a predetermined area of the bottom portion facing the floor, and is configured in a flat shape. The cloth 150 is configured in a shape in which the width (or diameter) in the horizontal direction is sufficiently large compared to the height in the vertical direction. When the cloth 150 is coupled to the lower housing 111 side, the bottom portion of the cloth 150 can be parallel to the floor.

[0159] The bottom portion of the cloth 150 can be formed in a substantially circular shape, and the cloth 150 can be configured in a shape that is rotationally symmetrical as a whole. Also, the cloth 150 can be detachable from the bottom portion of the rotating cleaning part 140, and can be coupled to the rotating cleaning part 140 to rotate together with the rotating cleaning part 140 after being coupled thereto.

[0160] In a state in which the rotating cleaning part 140 and the cloth 150 are coupled to the lower side of the module housing 110, a portion of the cloth 150 protrudes to the outside of the wet cloth module 100, so that the floor located outside the wet cloth module 100 can be cleaned in addition to the floor located below the wet cloth module 100.

[0161] As an example, the cloth 150 can protrude to the rear in addition to protruding to both sides of the wet cloth module 100.

[0162] The cloth 150 can include a first cloth coupled to the first rotating cleaning part 141 and a second cloth coupled to the second rotating cleaning part 142. Accordingly, when the first rotating cleaning part 141 receives power rotation of the first driving motor 171, the first cloth also rotates together, and when the second rotating cleaning part 142 receives power rotation of the second driving motor 172, the second cloth can also rotate together.

[0163] On the other hand, the wet cloth module 100 can further include a cloth driving motor 170 that provides power for rotating the cloth 150 and the rotating cleaning part 140.

[0164] In detail, the cloth driving motor 170 can include a first cloth driving motor 171 that rotates the first rotating cleaning part 141 and a second cloth driving motor 172 that rotates the second rotating cleaning part 142.

[0165] In this way, the first cloth driving motor 171 and the second cloth driving motor 172 operate independently, so as to have the advantage that even if any one of the first cloth driving motor 171 and the second cloth driving motor 172 malfunctions, rotation of the rotating cleaning part 140 can be achieved by the other.

[0166] On the other hand, the first and second cloth driving motors 171 and 172 can be arranged apart from each other in the left and right directions on the module housing 110. In addition, the first and second cloth driving motors 171 and 172 can be located behind the suction inlet 113a.

[0167] The cloth driving motor 170 can be disposed within the module housing 110. As an example, the cloth driving motor 170 can be placed on the upper side of the lower housing 111 and covered by the upper housing 112. That is, the cloth driving motor 170 can be located between the lower housing 111 and the upper housing 112.

[0168] On the other hand, the wet cloth module 100 includes a connection pipe 180 which is coupled to the cleaner main body 300 or the extension pipe 200.

[0169] The connection pipe 180 can include a first connection pipe connected to an end of the suction flow path, a second connection pipe rotatably connected to the first connection pipe, and a guide pipe communicating the interiors of the first and second connection pipes.

[0170] The first connection pipe can be formed in a tubular shape, with one axial end connected to an end of the suction flow path and the other axial end rotatably coupled to the second connection pipe. At this time, the first connection pipe is formed in a shape in which a portion of the outer circumferential surface is cut away, and is configured such that the cut-away portion faces the second connection pipe and the upper side. With this configuration, in a state in which the wet cloth module 100 is placed on the floor, the angle of the second connection pipe with respect to the floor can be changed as the user's arm moves. That is, the first and second connection pipes can function as a kind of joint that can adjust the angle of the wet cloth module 100 with respect to the cleaner main body 300.

[0171] The second connection pipe can be formed in a tubular shape, with one axial end rotatably coupled to the first connection pipe and the other axial end detachably coupled in such a manner that the cleaner main body 300 or the extension pipe 200 is inserted therein.

[0172] On the other hand, in the present embodiment, the second connection pipe can further incorporate an auxiliary battery housing 400 for accommodating an auxiliary battery 500.

[0173] On the other hand, electric wires can be built into the first and second connection pipes, and the electric wires built into the first and second connection pipes can be electrically connected to each other.

[0174] On the other hand, the guide tube can connect the inner space of the first connecting tube with the inner space of the second connecting tube. The guide tube can be formed with a flow path inside to flow the air sucked from the wet cloth module 100 to the extension tube 200 and / or the cleaner body 300. At this time, the guide tube can be deformed together according to the rotation of the first connecting tube and the second connecting tube. As an example, the guide tube can be formed as a pleated tube.

[0175] On the other hand, the wet cloth module 100 can include a printed circuit board 190 configured with a wet cloth module control part for controlling the wet cloth module 100. The printed circuit board 190 can be applied with electric current, and can be configured with a communication line. At this time, the printed circuit board 190 can be cooled by air flowing from a cooling air inflow port (not shown) and being discharged from a cooling air discharge port (not shown).

[0176] On the other hand, the module housing 110 can further include a first operation part (not shown) for adjusting the amount of water discharged from the water tank 120. As an example, the first operation part (not shown) can be located at the rear side of the module housing 110.

[0177] The first operation part (not shown) can be operated by a user, and by the operation of the first operation part (not shown), water can be discharged from the water tank 120 or the discharge of water from the water tank 120 can be stopped.

[0178] Alternatively, by the first operation part (not shown), the amount of water discharged from the water tank 120 can be adjusted. For example, according to the user's operation of the first operation part (not shown), a first amount of water can be discharged per unit time from the water tank 120, or a second amount greater than the first amount can be discharged per unit time.

[0179] The first operation part (not shown) is provided in the module housing 110 to pivot in the left-right direction, or is provided to pivot in the up-down direction according to the embodiment.

[0180] For example, in a state in which the first operation part (not shown) is located at a neutral position, the discharge amount of water is 0, and when the left side of the first operation part (not shown) is pushed to pivot the first operation part (not shown) to the left side, a first amount of water can be discharged per unit time from the water tank 120. In addition, when the right side of the first operation part (not shown) is pushed to pivot the first operation part (not shown) to the right side, a second amount of water can be discharged per unit time from the water tank 120.

[0181] On the other hand, the module housing 110 can further include a second operation part (not shown) for adjusting the phase of moisture discharged from the heat generator 136. As an example, the second operation part (not shown) can be located at the rear side of the module housing 110.

[0182] The second operation portion (not shown) can be operated by a user, and by the operation of the second operation portion (not shown), water or steam (water vapor) can be sprayed from the heat generator 136 to the cloth 150.

[0183] The second operation portion (not shown) can be provided in the module housing 110 in a rotatable manner. For example, the second operation portion (not shown) can be a rotary handle (knob).

[0184] For example, in a state in which the second operation portion (not shown) is rotated to be located in a first position, the heat generator 136 does not heat water, and water at room temperature can be sprayed to the cloth 150. Also, in a state in which the second operation portion (not shown) is rotated to be located in a second position different from the first position, the heat generator 136 heats water, and water can be sprayed to the cloth 150. Also, in a state in which the second operation portion (not shown) is rotated to be located in a third position different from the first position and the second position, the heat generator 136 heats water, and the water is phase-changed into steam (water vapor) and sprayed to the cloth 150.

[0185] The heat generator 136 can heat water to generate water at a high temperature or steam (water vapor). The heat generator 136 can heat water supplied from the water tank 120 and then supply the water to the cloth 150.

[0186] The heat generator 136 is provided in the wet cloth module 100, not in the cleaner main body 300. This is to prevent inconvenience in cleaning due to the weight and volume of the heat generator 136 when the heat generator 136 is configured in the cleaner main body in the case of dry cleaning.

[0187] The heat generator 136 can be coupled to an upper portion of the lower housing 111. For example, the heat generator 136 can be coupled to an upper side of the suction flow path. At this time, the suction flow path is coupled to a central portion of the upper side of the lower housing 111, and thus the heat generator 136 can also be disposed in the central portion of the lower housing 111.

[0188] With this configuration, in the case in which the heat generator 136 operates, a specific position does not become overheated due to heat supplied from the heat generator 136, and thus the wet cloth module 100 can be prevented from being damaged. Also, the minimization of the overall volume of the wet cloth module 100 can be achieved.

[0189] The heat generator 136 can include a heating cavity, a heater, a lower cover, a seal, an upper cover, a lower heat insulator, an upper heat insulator, an overheat breaker, and a temperature detection portion.

[0190] At this time, a heater is disposed at the lower side of the heating cavity, a lower heat insulating member is disposed at the lower side of the heater, and a lower cover is disposed at the lower side of the lower heat insulating member, thereby covering the lower side of the heat generator 136. Also, a seal is disposed at the upper side of the heating cavity, an upper heat insulating member is disposed at the upper side of the seal, and an upper cover is disposed at the upper side of the upper heat insulating member, thereby covering the upper side of the heat generator 136. On the other hand, the overheat protector and the temperature detecting part are disposed at the outer side of the heating cavity.

[0191] A flow path through which water flows is formed in the inside of the heating cavity, and a space in which heat generated by the heater is received to heat water flowing in the flow path can be provided.

[0192] In detail, the heating cavity includes a cavity main body, a water flow inlet, and a water spray outlet.

[0193] The cavity main body can provide a space in which water can flow in the inside. For example, the cavity main body can be formed in a shape similar to a square box. For example, the cavity main body can be formed by forming a square plate-shaped bottom at the lowermost side and forming four side walls vertically to the above-described bottom and connecting them. Also, the upper portion of the cavity main body can be in an open shape. Accordingly, the inside of the cavity main body refers to a space surrounded by the above-described bottom and the four side walls.

[0194] On the other hand, the inside space of the cavity main body can be divided by a partition. For example, the cavity main body can be divided into a left cavity and a right cavity with the partition as a reference.

[0195] On the other hand, the water flow inlet and the water spray outlet can be formed in the cavity main body. In detail, the water flow inlet and the water spray outlet can be formed in the bottom of the cavity main body. At this time, it is preferable that the water flow inlet and the water spray outlet are disposed to be farthest apart in the front-rear direction of the wet cloth module 100. This is to maximize the distance through which water flowing from the water flow inlet is heated until it is sprayed from the water spray outlet, thereby ensuring sufficient heating time.

[0196] For example, the rear end of the cavity main body is disposed at the upper portion of the front end of the cavity main body. That is, the heat generator 136 has a rear-upward slope. Thereby, water is heated while flowing from the rear upper portion of the heat generator 136 to the front lower portion.

[0197] The water flow inlet is formed in the cavity main body, and water can flow from the water tank 120. The water flow inlet can be a hole formed in the inlet end of the cavity main body.

[0198] In detail, the water flow inlet can be connected to the water supply pipe 135 of the water supply part 130. For example, the water supply pipe 135 is coupled to the lower side of the cavity main body, and the flow path inside the water supply pipe 135 and the water flow inlet can be in communication with each other. Accordingly, when the water pump 133 operates, water stored in the water tank 120 can flow into the inside of the cavity main body after flowing through the water supply pipe 135 by the flow force generated by the water pump 133.

[0199] The moisture ejection port can eject the moisture heated inside the cavity body. The moisture ejection port can be a hole formed at the outlet end of the cavity body.

[0200] Specifically, the moisture ejection port can be connected to the diffuser 160. For example, the diffuser 160 is coupled to the lower side of the cavity body, and a flow path inside the diffuser 160 and the moisture ejection port can communicate with each other. Thus, the moisture (water or steam) heated inside the cavity body flows into the diffuser 160 after passing through the moisture ejection port, and then can be supplied to the cloth 150.

[0201] On the other hand, in a state in which the wet cloth module 100 is placed on the ground (a state in which the cloth 150 is placed on the ground so as to be able to wipe the ground), the bottom of the cavity body can be configured to be inclined at a predetermined angle a with respect to the ground.

[0202] The bottom of the lower housing 111 in which the rotary cleaning part 140 and the lower part of the cloth 150 are coupled can be configured to be inclined at a predetermined angle a with respect to the bottom of the cavity body. That is, a virtual extension surface of the bottom of the cavity body and a virtual extension surface of the bottom of the lower housing 111 can cross each other.

[0203] Also, a height from the ground to the water inflow port can be higher than a height from the ground to the moisture ejection port. In addition, a distance from the bottom of the lower housing 111 to the water inflow port can be greater than a distance from the bottom to the moisture ejection port.

[0204] With such a configuration, even if the water flowing in from the water inflow port is heated and then performs an upward convection movement, due to gravity, it can be heated while flowing from the upper part to the lower part inside the cavity body.

[0205] Further, even if the water heated inside the cavity body is phase-changed into water vapor and then rises, it can remain inside the cavity body to be further heated, and not be discharged to the upper part of the cavity body.

[0206] The partition wall of the heating cavity can be formed to protrude upward from the bottom of the cavity body in the front-rear direction of the wet cloth module 100. With such a configuration, the partition wall can partition the inside of the cavity body into left and right spaces. Thus, the left and right spaces inside the cavity body can be separately and individually heated.

[0207] Furthermore, at least one wall may be formed inside the heating chamber to guide the flow of water. For example, the flow path within the chamber body may be formed in a zigzag shape. This increases the flow path of the water flowing within the chamber body, ensuring sufficient time for heating the water within the chamber body. Furthermore, this increases the area over which heat can be transferred to the water flowing within the chamber body. Furthermore, even if heat generator 136 shakes, the flow direction of the water is maintained, thereby maintaining the water or steam supply.

[0208] The heater can generate heat. The heater is a device that can convert electrical energy into thermal energy and can be implemented using a known structure, so detailed description is omitted.

[0209] The heater is located below the heating chamber and can supply heat to the chamber. Specifically, the heater can contact the bottom of the heating chamber. Therefore, when the heater generates heat, the heating chamber in contact with the heater can be heated by conduction. Thus, the heater, receiving power from the battery and / or auxiliary battery 500 provided in the cleaner body 300, can heat the water flowing within the heating chamber.

[0210] On the other hand, the heater can adjust the temperature of the water according to the user's input. Also, the heater can change the phase of the water into steam (water vapor) according to the user's input.

[0211] On the other hand, in this embodiment, a plurality of heaters may be provided, and the plurality of heaters may be arranged symmetrically to each other.

[0212] The lower cover is disposed below the heater and the lower thermal insulator and can cover the heater and the lower thermal insulator. For example, the lower cover can be formed into a flat plate and shaped to enclose the heater and the lower thermal insulator. The lower cover can be formed from a material that can block heat generated by the heater.

[0213] This configuration prevents the heat generated by the heater from being lost to the outside of the heat generator 136 , thereby improving energy efficiency and preventing components housed in the module case 110 from being damaged by the heat generated by the heater.

[0214] The seal is positioned above the heating chamber to ensure airtightness. Specifically, the seal ensures airtightness in the open upper portion of the chamber body. The seal can be made of a material that blocks the passage of moisture. With this configuration, even if water vapor rises within the heating chamber, it is blocked by the seal, preventing leakage to the outside.

[0215] The upper cover is disposed on the upper side of the seal and the upper heat insulator, and can cover the seal and the upper heat insulator. For example, the upper cover is formed in a flat plate shape, and can be formed in a shape capable of wrapping the seal and the upper heat insulator. The upper cover can be formed of a material capable of blocking heat transmitted through the seal.

[0216] With this configuration, heat generated by the heater is prevented from being lost to the outside of the heat generator 136, and thus energy efficiency can be improved. Also, components housed inside the module case 110 can be prevented from being damaged by heat generated by the heater.

[0217] The lower heat insulator is disposed between the heater and the lower cover, and can block heat transmitted from the heater. The lower heat insulator can be formed to have an area greater than that of the heater. For example, the lower heat insulator is formed in a flat plate shape, and can be formed of a material capable of blocking heat transmission.

[0218] With this configuration, heat generated by the heater is prevented from being lost to the outside of the heat generator 136, and thus energy efficiency can be improved. Also, components housed inside the module case 110 can be prevented from being damaged by heat generated by the heater. In particular, in the present embodiment, heat generated by the heater is blocked by the lower heat insulator and the lower cover, and thus the effects of improvement of energy efficiency and prevention of damage to components can be maximized.

[0219] The upper heat insulator is disposed on the upper side of the seal, and can block heat transmitted from the heating cavity. The upper heat insulator can be formed to have an area greater than that of the seal. For example, the upper heat insulator is formed in a flat plate shape, and can be formed of a material capable of blocking heat transmission.

[0220] With this configuration, heat of the heating cavity heated by the heater is prevented from being lost to the outside of the heat generator 136, and thus energy efficiency can be improved. Also, heat of the heating cavity is prevented from being lost to the outside of the heat generator 136, and thus components housed inside the module case 110 can be prevented from being damaged. In particular, in the present embodiment, heat of the heating cavity is blocked by the upper heat insulator and the upper cover, and thus the effects of improvement of energy efficiency and prevention of damage to components can be maximized.

[0221] The overheat protector is disposed at a side of the heating cavity, and can cut off power supplied to the heater when the temperature of the heating cavity is equal to or greater than a predetermined reference temperature Tr.

[0222] The overheat protector can be disposed at the heating cavity. Specifically, the overheat protector can be disposed at an outer side of the heating cavity.

[0223] The overheat protector can be disposed at a position where heat is concentrated in the heating cavity. The overheat protector can cut off power supplied to the heater when the temperature of the heating cavity reaches equal to or greater than a predetermined reference temperature Tr.

[0224] The overheat breaker can be a device that cuts off the circuit connection when overheat occurs. For example, the overheat breaker can be a thermal protector. The thermal protector can be a device that can automatically cut off the circuit connection when overheat occurs using a bi-metal. In addition, the overheat breaker can include all means of cutting off the circuit connection when overheat occurs.

[0225] The temperature detection part can measure the temperature of the heat generator 136.

[0226] The temperature detection part can be disposed at the side of the heating cavity. In detail, the temperature detection part can be disposed at the outer side of the heating cavity.

[0227] The temperature detection part can measure the temperature of the heating cavity. As an example, the temperature detection part can be a thermistor.

[0228] The diffuser 160 is connected to the heat generator 136 and can spray the moisture flowing from the heat generator 136 toward the cloth 150.

[0229] A pair of diffusers 160 can be installed in the module housing 110 and arranged in the left-right direction. Also, the pair of diffusers 160 arranged in the left-right direction can be formed in symmetrical shapes (mirrors) to each other.

[0230] The diffuser 160 is disposed at the lower side of the heat generator 136 and can be combined with the moisture spray outlet of the heat generator 136.

[0231] The diffuser 160 includes a diffuser housing 161 and a moisture supply hole 162.

[0232] The diffuser housing 161 can provide a space in which the moisture can flow inside. The internal space of the diffuser housing 161 can be communicated with the internal space of the heat generator 136.

[0233] The diffuser housing 161 can be formed in a circumferential direction with a predetermined circle point as a center. For example, when the bottom of the wet cloth module 100 is observed, the bottom of the diffuser housing 161 can be formed in a circular arc shape with the rotation center of the pair of rotary cleaning parts 140 as a circle point.

[0234] At this time, the diffuser housing 161 can be formed in a circular arc shape having a predetermined width. For example, the inner diameter of the diffuser housing 161 is the same as or greater than the radius of the rotary cleaning part 140. Also, the outer diameter of the diffuser housing 161 is less than half the distance between the rotation centers of the pair of rotary cleaning parts 140. Through this configuration, the diffuser housing 161 can be disposed between the pair of rotary cleaning parts.

[0235] The diffuser housing 161 can be composed of a bottom and a sidewall formed to protrude upward from the bottom. Accordingly, the diffuser housing 161 can form a space in which moisture can flow. The bottom of the diffuser housing 161 can form the appearance of the wet cloth module 100 together with the lower housing 111. The bottom of the diffuser housing 161 can be disposed on the lower housing 111, between the rotation centers of the pair of rotation cleaning portions 140.

[0236] The moisture supply hole 162 is formed in the diffuser housing 161, and can spray the moisture heated by the heat generator 136. In detail, the moisture supply hole 162 is formed in the bottom of the diffuser housing 161, and formed so that the moisture (water or steam) flowing in the diffuser housing 161 can be sprayed to the outside through the same.

[0237] At this time, the moisture supply hole 162 can be disposed at a predetermined distance from the rotation center of the rotation cleaning portion 140. In detail, the distance from the rotation center to the moisture supply hole 162 can be greater than the radius of the rotation cleaning portion 140.

[0238] Also, the distance from the rotation center to the moisture supply hole 162 can be less than the radius of the cloth 150.

[0239] Through this configuration, the moisture sprayed from the moisture supply hole 162 can be directly supplied to the cloth 150 without being blocked by the rotation cleaning portion 140.

[0240] On the other hand, it is preferable that, for the wet cloth module 100 of the present application, the distance between the heat generator 136 and the moisture supply hole 162 be disposed close.

[0241] That is, the moisture spray outlet of the heat generator 136 is connected to the moisture inflow pipe of the diffuser 160, and the moisture supply hole 162 of the diffuser 160 can be disposed close to the moisture spray outlet of the heat generator 136.

[0242] Through this configuration, the moisture flowing from the heat generator 136 can be rapidly sprayed through the moisture supply hole 162 after passing through the diffuser. Accordingly, the steam or high-temperature water generated by the heat generator 136 can be supplied to the cloth 150 in a state in which the heat loss is minimized.

[0243] The moisture supply hole 162 can be formed in at least one along the circumferential direction. In detail, the moisture supply hole 162 can be formed along the circumferential direction with a predetermined circle point as a center.

[0244] In this case, the moisture supplied to the cloth 150 can be impregnated along the cloth 150, and thus can be supplied to the entire cloth 150, and the heat contained in the moisture can increase the temperature of the cloth 150.

[0245] Also, as the wet-cloth module 100 of the present application, when the cloth 150 rotates, most of the water can move to the outside in the radial direction of the cloth 150 due to centrifugal force. Therefore, the outside in the radial direction of the cloth 150 can maintain a high water content, and a high temperature can be maintained.

[0246] In addition, the rotating cloth 150 can have a greater torque as it approaches the outside in the radial direction with the center of rotation as a reference.

[0247] That is, according to the present application, the portion of the cloth 150 on the outside in the radial direction can have a higher water content and a high heat and a greater torque. Therefore, according to the present application, there is an effect of enabling the maximization of the cleaning efficiency of the cloth 150.

[0248] The water supply hole 162 can be formed in a long hole shape in the circumferential direction with the center of rotation of the rotating cleaning portion 140 as a center.

[0249] With this configuration, water sprayed from the plurality of water supply holes 162 can be supplied to the fixed radial position of the cloth 150 in rotation.

[0250] On the other hand, according to the embodiment, the water supply hole 162 can be formed to have different widths in the radial direction.

[0251] As an example, the water supply hole 162 is formed in a long hole shape in the circumferential direction with the center of rotation of the rotating cleaning portion 140 as a center, and the width in the radial direction can be formed to gradually widen as it approaches from the front to the rear of the wet-cloth module.

[0252] As another example, the water supply hole 162 is formed in a long hole shape in the circumferential direction with the center of rotation of the rotating cleaning portion 140 as a center, and the width in the radial direction is formed to gradually widen as it approaches from the outside to the inside in the left-right direction of the wet-cloth module.

[0253] As still another example, the water supply hole 162 is formed in a long hole shape in the circumferential direction with the center of rotation of the rotating cleaning portion 140 as a center, and the width in the radial direction is formed to gradually widen in the direction of rotation of the rotating cleaning portion 140.

[0254] With this configuration, even if there is drainage on the water supply hole 162, at least a portion of the water supply hole 162 can be opened to pass gas. Therefore, through the space opened, steam can be sprayed, and at least a portion of the drainage can also be sprayed together through the hydraulic pressure of the steam, thereby having an effect of reducing the difference in the hydraulic pressure and the flow rate of the sprayed steam.

[0255] Also, in the present embodiment, the width of the water supply hole 162 is formed to be different, thereby having an effect of rapidly discharging drainage of a small size through the portion of the water supply hole 162 having a greater width.

[0256] On the other hand, the diffuser 160 can further include a gasket 164. The gasket 164 can be coupled with the diffuser housing 161. For example, the gasket 164 can be integrally formed with the diffuser housing 161.

[0257] The gasket 164 can be formed of a material capable of blocking moisture from passing therethrough.

[0258] The gasket 164 is coupled to the diffuser housing 161 and can be formed in an annular shape as a whole. Accordingly, the gasket 164 and the diffuser housing 161 can be exposed in an annular shape when the bottom of the observation module housing 110 is viewed.

[0259] With such a configuration, an effect of blocking moisture splashed when the cloth 150 rotates from flowing into the module housing 110 is obtained.

[0260] On the other hand, the diffuser housing 161 can further include a coupling portion 165. The coupling portion 165 can couple a pair of diffuser housings 161 and a pair of gaskets 164 disposed symmetrically with respect to each other. For example, the coupling portion 165 can be formed in a plate shape to couple the pair of diffuser housings 161.

[0261] Also, the coupling portion 165 can be combined with the lower housing 111. Specifically, the coupling portion 165 can be combined with the bottom of the lower housing 111.

[0262] With such a configuration, the diffuser 160 and the module housing 110 can be easily combined. Also, the diffuser 160 and the module housing 110 can be easily separated and the diffuser 160 can be easily cleaned.

[0263] On the other hand, in the present application, a space can be formed between the coupling portion 165 and the bottom of the lower housing 110. Also, air can flow in the space. That is, a flow path in which external air located outside the wet cloth module 100 can flow can be formed between the diffuser housing 161 and the bottom of the lower housing 110.

[0264] At this time, the external air described above can be referred to as dry air having a lower humidity than air surrounding the moisture supply hole 162, and the flow path described above can be referred to as a dry flow path 163 in which the dry air flows.

[0265] Accordingly, the dry flow path 163 in which air having a relatively low humidity flows can be formed between the diffuser housing 161 and the bottom of the lower housing 110.

[0266] The dry flow path 163 includes a dry air discharge port 163a and a dry air intake port 163b. The dry air discharge port 163a and the dry air intake port 163b can be formed at both end portions of the dry flow path 163.

[0267] For example, the dry air spouting port 163a can be formed at a front end of the dry flow path 163, and the dry air suction port 163b can be formed at a rear end of the dry flow path 163. That is, the dry air spouting port 163a can be formed at the front of the lower housing 111, and the dry air suction port 163b can be formed at the rear of the lower housing 111.

[0268] Air can be spouted from the dry air spouting port 163a via the dry flow path 163. Specifically, when the suction motor (not shown) of the cleaner main body 300 starts to operate, air can be spouted from the dry air spouting port 163a via the dry flow path 163 by the suction force of the suction motor.

[0269] The dry air spouting port 163a can be disposed between the suction port 113a and the pair of moisture supply holes 162. That is, with the left-right direction of the wet mop module 100 as a reference, the dry air spouting port 163a is disposed between the pair of moisture supply holes 162, and with the front-rear direction of the wet mop module 100 as a reference, the dry air spouting port 163a can be disposed between the suction port 113a and the moisture supply hole 162.

[0270] With this configuration, the moisture spouted from the moisture supply hole 162 can meet the air spouted from the dry air spouting port 163a before flowing into the suction port 113a.

[0271] Thus, the air flowing in through the dry flow path 163 can dry the moisture spouted from the moisture supply hole 162.

[0272] Air outside the wet mop module 100 can flow into the dry air flow inlet 163b.

[0273] For example, the pair of dry air flow inlets 163b can be disposed at the rear of the lower housing 111. At this time, preferably, the dry air flow inlets 163b are farther away from the rotation center of the rotary cleaning portion 140. This is because the farther the dry air flow inlets 163b are disposed from the mop 150, the lower the humidity of the air that can flow in.

[0274] With this configuration, relatively dry air can flow into the dry flow path 163 through the dry air flow inlets 163b.

[0275] On the other hand, in the dry flow path 163, the interval between the module housing 110 and the diffuser housing 161 can be narrower the closer it is to the suction port 113a. That is, the cross-sectional area of the dry flow path 163 gradually narrows as it approaches the dry air spouting port 163a.

[0276] With this configuration, the flow rate of the air flowing inside the dry flow path 163 can be higher the closer it is to the dry air spouting port 163a.

[0277] Accordingly, according to the present application, by increasing the flow rate of air ejected from the drying flow path 163, the drying effect can be improved.

[0278] On the other hand, referring to Figure 1 The dust collector 1 of the present application can include an extension pipe 200.

[0279] The extension pipe 200 can be combined with the dust collector main body 300 and the wet cloth module 100.

[0280] For example, the extension pipe 200 can be formed in a long cylindrical shape. Accordingly, the inner space of the extension pipe 200 can be communicated with the inner space of the wet cloth module 100. Also, the extension pipe 200 can be communicated with the suction flow path formed in the suction portion of the dust collector main body 300.

[0281] When suction force is generated by a suction motor (not shown), the suction force can be supplied to the wet cloth module 100 through the suction portion of the dust collector main body 300 and the extension pipe 200. Accordingly, external dust and air can flow into the dust collector main body 300 through the wet cloth module 100 and the extension pipe 200. Also, the dust and air flowing into the dust collector main body 300 through the wet cloth module 100 can flow into the dust collector main body 300 after passing through the extension pipe 200.

[0282] On the other hand, an electric wire can be built in the extension pipe 200. Accordingly, the dust collector main body 300 and the wet cloth module 100 can be electrically connected through the extension pipe 200.

[0283] On the other hand, referring to Figure 1 The dust collector 1 of the present application can include a dust collector main body 300.

[0284] The dust collector main body 300 can include a suction motor, a dust collecting tank, and a battery. The dust collector main body 300 can receive power from the battery to activate the suction motor, and can generate suction force by the operation of the suction motor.

[0285] The dust collector main body 300 is formed with a suction flow path, so that air and dust flowing in from the wet cloth module 100 can flow.

[0286] In addition, the dust collector main body 300 can be provided with at least one cyclone separation portion that separates dust sucked into the inside using the principle of a dust collector that utilizes centrifugal force. Accordingly, dust is separated in the process of spirally flowing air flowing in through the suction flow path.

[0287] In addition, the dust collector main body 300 is provided with a dust collecting tank that can store dust separated from air sucked by cyclone flow.

[0288] In addition, the battery can supply power to the wet-cloth module 100. At this time, the battery can supply power to the cloth driving motor 170 of the wet-cloth module 100. In addition, the battery can supply power to the water pump 133 of the wet-cloth module 100.

[0289] Referring to Figure 1 The dust collector 1 according to the present application can include an auxiliary battery case 400.

[0290] The auxiliary battery case 400 is coupled to the wet-cloth module 100 or the extension pipe 200, and the auxiliary battery 500 can be detachably coupled. As an example, the auxiliary battery case 400 is coupled to the connection pipe 180 of the wet-cloth module 100, and can internally and detachably accommodate the auxiliary battery 500.

[0291] The auxiliary battery case 400 can electrically connect the auxiliary battery 500 to the heat generator 136. Through this configuration, the auxiliary battery 500 can supply power to the heat generator 136 requiring high power.

[0292] Differently from this, the auxiliary battery case 400 can connect the auxiliary battery 500 in series to the battery (not shown) provided in the dust collector main body 300. Through this configuration, power can be stably supplied when high power is required, such as when the heat generator 136 is operated.

[0293] Differently from this, the auxiliary battery case 400 can connect the auxiliary battery 500 in parallel to the battery provided in the dust collector main body 300. Through this configuration, the use time of the dust collector 1 can be extended.

[0294] Referring to Figure 1 The dust collector 1 according to the present application can include an auxiliary battery 500.

[0295] The auxiliary battery 500 can store power inside. For example, the auxiliary battery 500 can be a secondary battery.

[0296] The auxiliary battery 500 can supply power to the wet-cloth module 100. Specifically, the auxiliary battery 500 can supply power to the heat generator 136. At this time, the auxiliary battery 500 and the heat generator 136 can be electrically connected.

[0297] On the other hand, Figure 6 FIG. 2 is a view for explaining a bottom of a lower case in a wet-cloth module according to an embodiment of the present application, Figure 7 FIG. 3 is a view for explaining the flow of moisture and air in the wet-cloth module according to an embodiment of the present application.

[0298] Referring to Figures 3 to 7 The flow of moisture and air in the present application will be explained below.

[0299] When the cleaner body 300 is in operation, the suction motor (not shown) of the cleaner body 300 starts to operate, supplying power to the wet mop module 100. At this time, the water pump 133 and the mop drive motor 170 start to operate. In addition, according to the user's selection, the heat generator 136 can start to operate.

[0300] Therefore, air containing dust can be sucked from the suction port 113a by the suction force generated by the suction motor (not shown).

[0301] At the same time, water (water or steam) may be ejected through the water supply hole 162 by the flow force generated by the water pump 133. The water ejected from the water supply hole 162 is supplied to the rag 150.

[0302] In addition, the rag 150 supplied with water through the water supply hole 162 can be rotated by the driving force of the rag drive motor 170. Thus, the water supplied to the rag 150 can be diffused.

[0303] On the other hand, the space between the rag 150 and the suction port 113a is blocked by the blocking member 114. Thus, the wet rag module 100 sucks in the dust in front for cleaning, and the rotation of the rag 150 that absorbs moisture can wipe the floor for cleaning.

[0304] On the other hand, in the conventional wet mop module, there is a possibility that a part of the water supplied to the mop flows into the suction port side due to the suction force of the suction motor.

[0305] At this point, the water that flows into the suction port mixes with the dust and remains around the suction port, potentially causing contamination. Alternatively, the water that flows into the suction port may flow into the dust collection bucket of the vacuum cleaner body. This water that flows into the dust collection bucket may cause bacteria to grow or even cause decay inside the dust collection bucket.

[0306] To solve these problems, in the present invention, as described above, the drying flow path 163 is introduced to dry the water that is ejected from the water supply hole 162 and flows into the suction port 113a.

[0307] When the wet wipe module 100 is placed on the floor and the suction motor (not shown) of the cleaner body 300 starts operating, the suction force of the suction motor (not shown) creates a negative pressure at the suction port 113a. Consequently, air behind the wet wipe module 100 flows into the dry air inlet 163b, passes through the dry air passage 163, and is then supplied to the suction port 113a through the dry air outlet 163a. ​​At this point, the humidity of the air passing through the dry air passage 163 is lower than that of the air surrounding the moisture supply hole 162.

[0308] On the other hand, the moisture sprayed from the moisture supply hole 162 can be blocked by the blocking member 114. In this case, the air sprayed from the dry air spray hole 163a can be supplied to the blocking member 114.

[0309] At this time, the flow direction of the air passing through the dry flow path 163 can be guided by the guide rib 111a. Specifically, the air guided to the space between the side wall of the dry flow path 163 and the one-side guide rib 111a can be sprayed toward the extension portion 114b of the blocking member 114 described later. In addition, the air sprayed toward the extension portion 114b flows along the circular-arc-shaped extension portion 114b, while blocking (one kind of air curtain) the flow of the moisture toward the suction port 113a and drying the moisture.

[0310] Also, the width and the cross-sectional area of the dry flow path 163 gradually decrease as approaching the dry air spray hole 163a side, so the flow rate of the air passing through the dry flow path 163 gradually increases as approaching the dry air spray hole 163a side. Thereby, it is possible to increase the contact amount of the air with the moisture, and it is possible to improve the drying effect.

[0311] As a result, according to the present application, by supplying the relatively dry air to the moisture supply hole 162 and the suction port 113a through the dry flow path 163, the drying is performed before the moisture sprayed from the moisture supply hole 162 flows into the suction port 113a, so it is possible to prevent the contamination of the wet cloth module 100 itself and the contamination inside the dust collecting bucket of the cleaner main body 300.

[0312] The present application has been described in detail through specific embodiments, but these embodiments are only for specifically describing the present application, and the present application is not limited to these embodiments. It is obvious that those skilled in the art can deform or modify the present application within the technical idea range of the present application.

[0313] Simple deformations or changes of the present application are included in the scope of the present application, and the specific protection range of the present application can be explicitly described through the claims.

Claims

1. A wet rag module for a vacuum cleaner, which is used to wipe foreign matter off the floor for cleaning, characterized in that: include: module housing; a water tank, which is combined with the module housing and stores water therein; At least one rotating cleaning unit is disposed on the lower side of the module housing, and a rag can be coupled to the at least one rotating cleaning unit; a heat generator that heats water supplied from the water tank; as well as A diffuser is disposed below the heat generator and supplies the water heated by the heat generator to the rag. The module housing includes: The lower housing is formed with an inlet into which air containing dust flows. The aforementioned diffuser includes: a diffuser housing coupled to the lower side of the lower housing; and A pair of moisture supply holes are formed in the diffuser housing for ejecting the moisture heated by the heat generator. A drying flow path through which air flows is formed between the module housing and the diffuser housing.

2. The wet wipe module of the vacuum cleaner according to claim 1, characterized in that: The drying flow path includes: The dry air ejection port is disposed between the suction port and the pair of moisture supply holes and is used to eject air.

3. The wet wipe module of the vacuum cleaner according to claim 1, characterized in that: The drying flow path further includes: The dry air inlet is arranged at the rear of the lower housing, and air flows into the dry air inlet.

4. The wet wipe module of the vacuum cleaner according to claim 1, characterized in that: A guide rib is protrudingly formed on a lower side surface of the lower housing, and the guide rib guides the flow of air flowing through the drying flow path.

5. The wet wipe module of the vacuum cleaner according to claim 1, characterized in that: A blocking member is protruding from the lower side of the module housing and is used to shield the front space where the suction port is arranged and the rear space where the moisture supply hole is arranged, so as to prevent the moisture sprayed from the moisture supply hole from diffusing toward the suction port.

6. The wet wipe module of the vacuum cleaner according to claim 5, characterized in that: The moisture ejected from the moisture supply hole and the air passing through the drying flow path flow into the baffle.

7. The wet wipe module of the vacuum cleaner according to claim 5, characterized in that: The drying flow path is arranged behind the baffle.

8. The wet wipe module of the vacuum cleaner according to claim 1, characterized in that: In the drying flow path, the distance between the module housing and the diffuser housing becomes narrower as it approaches the suction port.

9. A vacuum cleaner, characterized in that: include: a vacuum cleaner body having a suction motor for generating suction force for sucking air; as well as The wet rag module can be detachably connected to the vacuum cleaner body and is used to wipe foreign matter off the floor for cleaning. The wet wipe module includes: a module housing formed with an intake port into which air containing dust flows; a water tank, which is combined with the module housing and stores water therein; At least one rotating cleaning unit is disposed on the lower side of the module housing, and a rag can be coupled to the at least one rotating cleaning unit; a heat generator that heats water supplied from the water tank; and A diffuser is disposed below the heat generator and supplies the water heated by the heat generator to the rag. The aforementioned diffuser includes: a diffuser housing coupled to the lower side of the module housing; and A moisture supply hole is formed in the diffuser housing for ejecting the moisture heated by the heat generator. A drying flow path for air flow is formed between the module housing and the diffuser housing. When the suction motor is operated, air passing through the drying flow path flows into the suction port.

10. The vacuum cleaner according to claim 9, characterized in that When the suction motor is operated, the air ejected from the drying flow path is supplied to the moisture flowing from the rag toward the suction port.

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