Wet wipe module of dust collector

Abstract

The invention relates to a wet cleaning cloth module of a dust collector. A water tank coupled to the module cover and storing water therein; at least one rotary cleaning part which is arranged on the lower side of the module cover body and can be combined with a cleaning cloth; a heat generator that heats water supplied from the water tank; and a water pump supplying water in the water tank to the heat generator, the amount of water accommodated by the heat generator is the same as the amount of water supplied by the water pump, thereby having an effect of being able to supply a predetermined amount of moisture to the cleaning cloth at a predetermined temperature.

Description

Technical Field

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

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

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

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

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

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

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

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

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

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

[0011] US Patent No. 9420933B2 (August 23, 216) discloses a heater used in a steam wet wipe vacuum cleaner.

[0012] The steam wet mop cleaner has a configuration of receiving water from a water tank and generating steam through a steam generator, and then providing the steam to a cleaning pad.

[0013] The steam generator is configured to heat water with a heater while storing water, and discharge the heated steam flowing upward to the cleaning pad through a discharge port provided on the upper side of the steam generator.

[0014] In addition, Korean patent KR1609444B1 (2016.03.30) discloses a water vacuum cleaner provided with a steam generating means.

[0015] In the water vacuum cleaner, the water supply port and the steam discharge port are both arranged on the upper side of the steam generating means, and the water supply port and the steam discharge port are connected by a U-shaped pipe.

[0016] As described above, in a conventional steam generator, the discharge port for discharging steam is generally arranged on the upper side of the steam generator.

[0017] Furthermore, the water storage capacity of the steam generator is configured so that the water pump needs to be operated multiple times to be filled.

[0018] Therefore, there is a limitation in that water is discharged before the water stored in the steam generator is sufficiently heated.

[0019] In addition, there is a limitation that the time for cleaning in a state where the water stored in the steam generator is heated is short due to the limitation of the battery capacity. Summary of the invention

[0020] Problem to be solved

[0021] The present invention is proposed to improve the problems of the existing wet rag module of the vacuum cleaner as described above, and its purpose is to provide a wet rag module of the vacuum cleaner that supplies high-temperature water to the rag to increase the sterilization effect and foreign matter removal effect.

[0022] Another object of the present invention is to provide a wet mop module for a vacuum cleaner capable of heating water flowing into a steam generator to a target temperature.

[0023] Another object of the present invention is to provide a wet mop module for a vacuum cleaner capable of maintaining the same amount of water supplied to a pair of mops.

[0024] Technical solutions to the problem

[0025] In order to achieve the above-mentioned purpose, the wet rag module of the vacuum cleaner cleans by wiping foreign objects on the ground, and may include: a module cover; a water tank, which is combined with the module cover and stores water inside the water tank; at least one rotating cleaning part, which is arranged on the lower side of the module cover and can be combined with a rag; a heat generator, which heats the water supplied from the water tank; and a water pump, which supplies the water in the water tank to the heat generator.

[0026] At this time, the amount of water contained in the heat generator may be the same as the amount of water supplied by the water pump.

[0027] The heat generator may include: a heating chamber having a flow path for water flow formed therein; a heater for supplying heat to the heating chamber; a water inlet formed in the heating chamber for water to flow in from the water tank; and a pair of water outlets formed in the heating chamber for discharging heated water.

[0028] The flow path may allow the water inlet to communicate with the pair of water discharge ports, and the flow path may be formed symmetrically with respect to the water inlet.

[0029] In the heating chamber, a height at which the water inlet is formed may be the same as a height at which the water discharge port is formed.

[0030] The heat generator may include: a heating chamber having a flow path for water flow formed therein; a heater in contact with the heating chamber and supplying heat to the heating chamber; a lower cover arranged at the lower side of the heater and covering the heater; a sealing member arranged at the upper side of the heating chamber and making the upper side of the heating chamber airtight; and an upper cover arranged at the upper side of the sealing member and covering the sealing member.

[0031] The heat generator may further include a heat insulating member disposed between the heater and the lower cover.

[0032] The water pump may supply water at intervals of a preset water supply cycle.

[0033] The water pump may be operated during a preset water supply time, and an amount of water supplied by the water pump during the water supply time may be the same as a product of the water supply time and an amount of water spitted toward the rag per unit time.

[0034] The water pump may be operated during a preset water supply time, and the heat generator may contain water in an amount equal to a product of the water supply time and an amount of water spitted toward the rag per unit time.

[0035] Effects of the Invention

[0036] As described above, the wet rag module of the vacuum cleaner according to the present invention has the effect of supplying high-temperature water or steam to the rag through the heater to increase the sterilization effect and foreign matter removal effect.

[0037] In addition, the amount of water contained in the heat generator can be the same as the amount of water supplied by the water pump, and water can be supplied at a preset water supply time period, heating a predetermined amount of water during a predetermined time. Therefore, it has the effect of being able to supply a predetermined amount of water at a predetermined temperature to the rag. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional diagram of a vacuum cleaner according to an embodiment of the present invention.

[0039] Figure 2 It is a combined three-dimensional diagram for illustrating a wet wipe module according to an embodiment of the present invention.

[0040] Figure 3 It is a three-dimensional view of a wet cloth module according to an embodiment of the present invention with an upper cover removed.

[0041] Figure 4 yes Figure 3 Top view of the .

[0042] Figure 5 yes Figure 3 Bottom view of .

[0043] Figure 6 yes Figure 3 Side view of.

[0044] Figure 7 It is a perspective view for explaining a heat generator in a wet wipe module according to an embodiment of the present invention.

[0045] Figure 8 This is a diagram showing the upper side of a heat generator according to an embodiment of the present invention.

[0046] Fig. 9 This is a diagram showing the rear side of a heat generator according to an embodiment of the present invention.

[0047] Fig.10 This is a diagram for explaining the angle of a heat generator coupled to a module cover according to an embodiment of the present invention.

[0048] Fig.11 It is an exploded perspective view for explaining a heat generator in a wet wipe module according to an embodiment of the present invention.

[0049] Fig.12 FIG. 1 is a top view of a flow path of a heating chamber of a heat generator for explaining an embodiment of the present invention.

[0050] Fig.13 It is a block diagram for explaining the control structure of the wet wipe module according to one embodiment of the present invention. DETAILED DESCRIPTION

[0051] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0052] The present invention can be modified in many ways and has many embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This does not mean that the present invention is limited to specific embodiments, and should be interpreted as including all modifications, equivalents, or substitutes included in the concept and technical scope of the present invention.

[0053] Figure 1 A three-dimensional diagram of a vacuum cleaner according to an embodiment of the present invention is shown. Figure 2 A combined stereogram of a wet wipe module for illustrating an embodiment of the present invention is shown. Figures 3 to 6 A diagram is shown for explaining a state where an upper cover is removed from a wet wipe module according to an embodiment of the present invention.

[0054] The "floor" in this specification can be understood to mean not only the floor of a living room or a room, but also a clean surface such as a carpet.

[0055] Reference Figures 1 to 6 A vacuum cleaner 1 according to an embodiment of the present invention may include: a vacuum cleaner body 400 provided with a suction motor for generating suction; a wet rag module 100 connected to the vacuum cleaner body 400 and used for cleaning by sucking in air and foreign matter on the ground and wiping the ground; and an extension tube 300 connecting the vacuum cleaner body 400 and the wet rag module 100.

[0056] The wet wipe module 100 according to the embodiment of the present invention may include a module cover 110 and a connection pipe 180 movably connected to the module cover 110 .

[0057] As an example, the wet wipe module 100 of the present embodiment can be connected to a handheld vacuum cleaner or a canister vacuum cleaner for use.

[0058] That is, the wet rag module 100 can be detachably connected to the cleaner body 400 or the extension tube 300. Therefore, the user can use the wet rag module 100 to clean the floor while being connected to the cleaner body 400 or the extension tube 300. At this time, the cleaner body 400 connected with the wet rag module 100 can separate dust in the air in a multi-cyclone manner.

[0059] The wet mop module 100 may receive power from the cleaner body 400 to operate.

[0060] The cleaner body 400 connected with the wet rag module 100 includes a suction motor (not shown), so that foreign matter and air on the ground can be sucked in from the wet rag module 100 by causing the suction force generated by the suction motor (not shown) to act on the wet rag module 100.

[0061] Therefore, the wet cloth module 100 in this embodiment can perform the function of sucking in foreign matter and air on the ground and guiding them to the cleaner body 400 .

[0062] The connection pipe 180 may be connected to the rear center portion of the module cover 110 to guide the sucked air to the cleaner 1 , but the present invention is not limited thereto.

[0063] To facilitate understanding, if the directions of the present embodiment are defined, the portion of the wet rag module 100 to which the connection pipe 180 is connected may be regarded as the rear side (rear) of the wet rag module 100, and the portion on the opposite side of the portion to which the connection pipe 180 is connected may be regarded as the front side (front) of the wet rag module 100. In addition, the direction connecting the front and the rear may be referred to as the front-rear direction.

[0064] In addition, based on the view from the connection pipe 180 toward the suction port 113a, the left side of the flow path forming portion 113 may be referred to as the left side of the wet wipe module 100, and the right side of the flow path forming portion 113 may be referred to as the right side of the wet wipe module 100. In addition, the direction connecting the left and right sides may be referred to as the left-right direction. The left-right direction may refer to a direction perpendicular to the front-rear direction on a horizontal plane.

[0065] In addition, based on the state where the wet rag module 100 is placed on the ground, that is, the rag 150 is placed on the ground and can wipe the ground, the direction close to the ground can be called the lower side or downward, and the direction away from the ground can be called the upper side or upward.

[0066] The wet cloth module 100 may further include a rotary cleaning unit 140 rotatably disposed on a lower side of the module cover 110 .

[0067] As an example, the rotary cleaning unit 140 may be provided as a pair and arranged in the left-right direction. In this case, the pair of rotary cleaning units 140 may rotate independently. As an example, the rotary cleaning unit 140 may include a first rotary cleaning unit 141 and a second rotary cleaning unit 142.

[0068] The rotary cleaning unit 140 may be combined with a rag 150 . As an example, the rag 150 may be formed in a disk shape. The rag 150 may include a first rag 151 and a second rag 152 .

[0069] When the rag 150 is placed on the ground, under the action of the load of the wet rag module 100, the rag 150 is in close contact with the ground, thereby increasing the friction between the rag 150 and the ground.

[0070] The module cover 110 may form the appearance of the wet wipe module 100 and may be formed with a suction port 113a for sucking air. As an example, the suction port 113a may be formed at the bottom front end of the module cover 110. The suction port 113a may be formed extending in the left-right direction on the module cover 110.

[0071] The module cover 110 may include a lower cover 111 and an upper cover 112 , and the upper cover 112 may be coupled to an upper side of the lower cover 111 .

[0072] The lower cover 111 may be installed with the rotary cleaning unit 140 and form the appearance of the wet mop module 100 .

[0073] The lower cover 111 may include a bottom surface combined with the rotary cleaning unit 140. At this time, the lower side of the bottom surface may be configured to face the ground when the wet wipe module 100 is placed on the ground, and the upper side of the bottom surface may be provided with a moisture supply unit, a heat generator 200 and a drive motor 170.

[0074] A suction port 113a may be formed in the lower cover 111. Specifically, a suction port 113a may be formed in the bottom surface of the lower cover 111. The suction port 113a indicates a space into which air containing dust can flow. With the above-described configuration, if the suction motor (not shown) of the vacuum cleaner body 400 is operated, dust and air present around the ground can be sucked into the flow path of the wet rag module 100 through the suction port 113a.

[0075] Although not shown in the drawings, a substrate installation portion may be provided on the lower cover 111 , and a printed circuit substrate for controlling the driving motor 170 may be provided on the substrate installation portion.

[0076] The substrate installation portion may be located at one side of the flow path forming portion 113 in the lower housing 111 , but is not limited thereto.

[0077] A nozzle hole (not shown) for passing water discharged from the water discharge port may be formed in the lower cover 111. Thus, water or steam (water vapor) passing through the heat generator 200 may be supplied to the rag 150 through the nozzle hole (not shown).

[0078] The upper cover 112 may cover the upper side of the lower cover 111 and may constitute the appearance of the wet wipe module 100 of the present invention.

[0079] In addition, the module cover 110 may further include a flow path forming portion 113 , which communicates with the suction port 113 a and guides the air flowing in through the suction port 113 a to the cleaner body 400 .

[0080] The flow path forming portion 113 may be combined with an upper central portion of the lower cover 111 , and a rear end portion of the flow path forming portion may be connected to the connection pipe 180 .

[0081] Therefore, by configuring the flow path forming portion 113 , the suction port 113 a can extend in a substantially straight line along the front-rear direction, thereby minimizing the length of the suction port 113 a and minimizing the flow path loss in the wet wipe module 100 .

[0082] The front side portion of the flow path forming portion 113 may cover the upper side of the suction port 113a. The flow path forming portion 113 may be formed to gradually tilt upward from the front end portion to the rear side. That is, the upper side surface of the flow path forming portion 113 may be tilted at a predetermined angle with the ground. In addition, the upper side surface of the flow path forming portion 113 may be tilted at a predetermined angle with the bottom surface of the lower cover body 111.

[0083] Therefore, the height of the front side portion of the flow path forming portion 113 may be formed to be lower than the height of the rear side portion.

[0084] According to this embodiment, since the height of the front part of the flow path forming part 113 is relatively low, there is an advantage that the height of the front part can be reduced in the overall height of the wet rag module 100. The lower the height of the wet rag module 100, the higher the possibility that it can be pushed into the narrow space under furniture or chairs for cleaning.

[0085] On the other hand, the heat generator 200 in this embodiment may be disposed on the upper side of the flow path forming portion 113. With the above configuration, the heat generator 200 can be stably supported by the lower cover 111 in a state where the heat generator 200 is disposed at a predetermined angle to the ground.

[0086] A blocking member 114 is disposed on the lower side of the lower cover 111. The blocking member 114 can block the water released from the rag 150 from diffusing toward the suction port 113a by shielding the front space where the suction port 113a is disposed and the rear space where the rag 150 is disposed. For example, the blocking member 114 can be arranged in an arc shape to surround the circular rag 150.

[0087] A plurality of rollers for smoothly moving the wet cloth module 100 may be disposed on the lower side of the lower cover 111 .

[0088] As an example, the lower cover 111 may be provided with a front roller 115 in front of the rag 150. The front roller 115 may include a first roller 115a and a second roller 115b. The first roller 115a and the second roller 115b may be spaced apart in the left-right direction.

[0089] The first roller 115a and the second roller 115b may be rotatably connected to the shaft, respectively. The shaft may be fixed to the lower side of the lower cover 111 in a state of being configured to extend in the left-right direction.

[0090] The distance between the shaft and the front end of the lower cover body 111 may be greater than the minimum distance between the rag 150 and the front end of the lower cover body 111 .

[0091] As an example, at least a portion of the rotary cleaning unit 140 may be disposed between the axis of the first roller 115 a and the axis of the second roller 115 b .

[0092] According to such a configuration, the rotary cleaning unit 140 can be arranged as close to the suction port 113a as possible, and the area cleaned by the rotary cleaning unit 140 is increased in the floor where the wet cloth module 100 is arranged, thereby improving the floor cleaning performance.

[0093] In the case of this embodiment, the first roller 115 a and the second roller 115 b are combined at the lower side of the lower cover 111 , so that the mobility of the wet cloth module 100 can be improved.

[0094] A third roller 116 may also be provided at the lower cover 111. Therefore, the first roller 115a and the second roller 115b may support the wet rag module 100 at three points together with the third roller 116. At this time, the third roller 116 may be located behind the rag 150 so as not to interfere with the rag 150.

[0095] The wet wipe module 100 may further include a water tank 120 capable of supplying moisture to the wipe 150 .

[0096] The water tank 120 may be detachably connected to the module cover 110. Specifically, the water tank 120 may be combined with the upper side of the upper cover 112. For example, the water tank 120 may be installed in a water tub placement portion formed on the upper side of the upper cover 112.

[0097] In addition, the water tank 120 may be disposed on the upper portion of the heat generator 200. Specifically, the water tank 120 may be disposed on the upper portion of the heat generator 200 and separated from the heat generator 200. That is, the water tank 120 may be disposed on the upper portion of the heat generator 200 via the upper cover 112.

[0098] In a state where the module cover 110 is mounted with the water tank 120 , the water tank 120 may form an appearance of the wet wipe module 100 .

[0099] In fact, the entire upper side wall of the water tank 120 may form the top surface appearance of the wet cloth module 100. Therefore, the user can visually confirm whether the water tank 120 is installed in the module cover 110.

[0100] The module cover 110 may further include a water tank separation button, which is operated to separate the water tank 120 when the water tank 120 is installed in the module cover 110. For example, the water tank separation button may be located in the central portion of the wet wipe module 100. Therefore, there is an advantage that the user can easily identify the water tank separation button and operate the water tank separation button.

[0101] In a state where the water tank 120 is mounted on the module housing 110, water of the water tank 120 may be supplied to the rag 150. Specifically, the water stored in the water tank 120 may be supplied to the rag 150 through the water supply part.

[0102] Specifically, a space capable of storing water is formed inside the water tank 120. The water stored in the water tank 120 may be supplied to the heat generator 200 through at least one pipe (hose). The water flowing into the heat generator 200 may be heated by the heat generator 200. The water or steam heated in the heat generator 200 may be supplied to the rag 150.

[0103] The water tank 120 includes a water supply port. The water supply port is a hole that allows water to flow into the inside of the water tank 120. For example, the water supply port may be formed on a side of the water tank 120.

[0104] The water tank 120 includes a drain port. The drain port is a hole through which water stored in the water tank 120 is drained. Water discharged from the drain port may flow toward the heat generator 200. The drain port may be formed at a lower surface of the water tank 120.

[0105] The water tank 120 includes an air hole. The air hole is a hole that allows air to flow into the inside of the water tank 120. When the water stored in the water tank 120 is discharged to the outside, the pressure inside the water tank 120 decreases, and in order to compensate for the decreased pressure, air can flow into the inside of the water tank 120 through the air hole. For example, the air hole can be formed at the upper end of the water tank 120.

[0106] The wet rag module 100 of the present invention may include a water supply part formed with a flow path for supplying water flowing from the water tank 120 to the rag 150 .

[0107] Specifically, the water supply unit may include: a water tank connection unit, which allows water from the water tank 120 to flow into the module cover 110; a water inflow pipe 132, which supplies the water flowing into the water tank connection unit to the water pump 130; and a water supply pipe, which supplies the water discharged from the water pump 130 to the heat generator 200.

[0108] The water tank connection portion can activate the valve in the water tank 120 to allow water to flow.

[0109] The water tank connection portion may be coupled to the lower side of the upper cover body 112 , and a portion of the water tank connection portion may penetrate the upper cover body 112 and protrude toward the upper side.

[0110] The water tank connection portion protruding upward can penetrate the discharge port of the water tank 120 and be introduced into the water tank 120 when the water tank 120 is placed on the upper cover 112 .

[0111] The upper cover 112 may be provided with a seal for preventing water discharged from the water tank 120 from leaking around the water tank connection portion. As an example, the seal may be formed of a rubber material and may be coupled to the upper cover 112 from the upper side thereof.

[0112] The upper housing 112 may be provided with a water pump 130 for controlling the discharge of water from the water tank 120 .

[0113] The water pump 130 may provide a flow force of water. The water pump 130 may include a first connection port connected to the water inflow pipe and a second connection port connected to the guide pipe. At this time, based on the water pump 130, the first connection port may be an inlet, and the second connection port may be an outlet.

[0114] The water pump 130 is a pump that expands or contracts as the internal valve body operates to connect the first connection port with the second connection port. The water pump 130 can be implemented using a known structure, and thus a detailed description thereof is omitted.

[0115] Therefore, the water stored in the water tank 120 is supplied to the heat generator 200 after passing through the water pump 130 .

[0116] The heat generator 200 is a device for heating water. The heat generator 200 is arranged inside the module cover 110. Specifically, the heat generator 200 is installed on the upper surface of the lower cover 111.

[0117] On the other hand, the heat generator 200 in the present invention is arranged at an inclination. Specifically, based on the state where the module cover 110 is placed on the ground, the bottom surface of the heat generator 200 may be arranged to form a predetermined angle α with the ground.

[0118] The specific structure and effects of the heat generator 200 of the present invention will be described later.

[0119] The rotary cleaning unit 140 may receive power from the driving motor 170 and rotate. For example, the rotary cleaning unit 140 may be a rotary plate. The rotary cleaning unit 140 may be formed in a disc shape, and a rag 150 may be attached to the bottom surface.

[0120] At this time, the disc-shaped rotating cleaning unit 140 can be arranged parallel to the ground when the wet cloth module 100 is placed on the ground. Alternatively, the disc-shaped rotating cleaning unit 140 can be arranged parallel to the bottom surface of the lower cover 111.

[0121] As an example, the rotary cleaning unit 140 may be located behind the suction port 113 a at the lower side of the module cover 110 .

[0122] Therefore, when the wet mop module 100 is moved forward for cleaning, after foreign matter and air on the floor are sucked in by the suction port 113 a , the floor can be wiped with the mop 150 .

[0123] At least one rotary cleaning unit 140 may be provided on the lower side of the module cover 110. For example, the rotary cleaning unit 140 may include: a first rotary cleaning unit 141 connected to the first drive motor 171 and having a first rag 151 attached thereto; and a second rotary cleaning unit 142 connected to the second drive motor 172 and having a second rag 152 attached thereto.

[0124] Specifically, the rotary cleaning unit 140 may include: an outer body in a ring shape; an inner body located in the central area of ​​the outer body and separated from the inner circumference of the outer body; and a plurality of connecting ribs connecting the outer circumference of the inner body and the inner circumference of the outer body.

[0125] In addition, the rotary cleaning unit 140 may include a plurality of water holes formed along a circumferential direction for supplying water discharged from the heat generator 200 to the rag 150 .

[0126] On the other hand, the rotary cleaning unit 140 may include an attachment member to attach the rag 150. As an example, the attachment member may be Velcro.

[0127] The rotary cleaning unit 140 may be disposed at the lower side of the lower housing 111 . That is, the rotary cleaning unit 140 may be disposed outside the module housing 110 .

[0128] In addition, the rotary cleaning unit 140 may be connected to the driving motor 170 and receive power. For example, the rotary cleaning unit 140 may be connected to the driving motor 170 through one or more gears and rotated by the operation of the driving motor 170.

[0129] The rotary cleaning unit 140 may include a first rotary cleaning unit 141 and a second rotary cleaning unit 142. For example, when the wet rag module 100 is placed on the ground, with the suction port 113a as a reference, the first rotary cleaning unit 141 may represent the rotary cleaning unit 140 disposed on the left side, and the second rotary cleaning unit 142 may represent the rotary cleaning unit 140 disposed on the right side, but the invention is not limited thereto, and the left and right sides may be interchanged.

[0130] In this embodiment, the rotation center of the first rotation cleaning unit 141 and the rotation center of the second rotation cleaning unit 142 may be spaced apart in the left-right direction.

[0131] The rotation center of the rotary cleaning unit 140 may be located at a position farther from the front end of the module cover 110 than the central axis bisecting the front-rear length of the module cover 110. This is to prevent the rotary cleaning unit 140 from blocking the suction port 113a.

[0132] The distance between the rotation center of the first rotary cleaning unit 141 and the rotation center of the second rotary cleaning unit 142 may be greater than the diameter of the rag 150. This is to reduce the friction between the first rag 151 and the second rag 152 caused by the interference during the rotation process, and prevent the cleanable area from being reduced by the interference portion.

[0133] The rag 150 may wipe the floor through a rotating motion.

[0134] The rag 150 may be coupled to a lower side of the rotary cleaning unit 140 to face the ground.

[0135] The rag 150 is configured such that the bottom surface facing the ground has a predetermined area, and the rag 150 is configured in a flat shape. The rag 150 is configured such that the horizontal width (or diameter) is sufficiently greater than the vertical height. The rag 150 is coupled to the lower cover 111 side, so that the bottom surface of the rag 150 can be parallel to the ground.

[0136] The bottom surface of the rag 150 may be roughly circular, and the rag 150 may be configured to be rotationally symmetrical as a whole. In addition, the rag 150 may be mounted / detached on the bottom surface of the rotary cleaning unit 140, and may be combined with the rotary cleaning unit 140 and rotate together with the rotary cleaning unit 140.

[0137] When the rotating cleaning unit 140 and the rag 150 are combined on the lower side of the module cover 110, a portion of the rag 150 protrudes to the outside of the wet rag module 100, so that not only the ground below the wet rag module 100 but also the ground outside the wet rag module 100 can be cleaned.

[0138] As an example, the rag 150 may not only protrude toward the sides of the wet rag module 100 , but may also protrude toward the rear.

[0139] The rag 150 may include a first rag 151 coupled to the first rotary cleaning unit 141 and a second rag 152 coupled to the second rotary cleaning unit 142. Therefore, when the first rotary cleaning unit 141 receives power from the first drive motor 171 and rotates, the first rag 151 may also rotate together, and when the second rotary cleaning unit 142 receives power from the second drive motor 172 and rotates, the second rag 152 may also rotate together.

[0140] On the other hand, the wet mop module 100 may further include a driving motor 170 for providing power to rotate the mop 150 and the rotary cleaning unit 140 .

[0141] Specifically, the driving motor 170 may include a first driving motor 171 which rotates the first rotation cleaning unit 141 and a second driving motor 172 which rotates the second rotation cleaning unit 142 .

[0142] As described above, the first drive motor 171 and the second drive motor 172 operate separately. Therefore, even if one of the first drive motor 171 and the second drive motor 172 fails, the rotary cleaning unit 140 can be rotated by using the other one.

[0143] On the other hand, the first driving motor 171 and the second driving motor 172 may be arranged in a spaced relationship in the left-right direction in the module housing 110. In addition, the first driving motor 171 and the second driving motor 172 may be located behind the suction port 113a.

[0144] The driving motor 170 may be disposed in the module housing 110. As an example, the driving motor 170 may be installed on the upper side of the lower housing 111 and covered by the upper housing 112. That is, the driving motor 170 may be located between the lower housing 111 and the upper housing 112.

[0145] On the other hand, the wet mop module 100 includes a connection pipe 180 coupled to the cleaner body 400 or the extension pipe 300 .

[0146] The connection pipe 180 may include a first connection pipe connected to an end of the flow path forming portion 113 , a second connection pipe rotatably connected to the first connection pipe, and a guide pipe communicating the first connection pipe with the second connection pipe.

[0147] The first connecting tube can be formed into a tube shape, and one end portion of the axial direction can be connected to the end of the flow path forming portion 113, and the other end portion of the axial direction can be rotatably combined with the second connecting tube. At this time, the first connecting tube can be formed into a shape in which a part of the outer peripheral surface is cut, and the cut part can be facing the second connecting tube and the upper side. With the above-mentioned structure, when the wet rag module 100 is placed on the ground, the angle formed by the second connecting tube and the ground may change as the user's arm moves. That is, the first connecting tube and the second connecting tube can perform the role of a joint that can adjust the angle between the wet rag module 100 and the vacuum cleaner body 400.

[0148] The second connecting pipe is formed in a pipe shape, and one end portion in the axial direction is rotatably connected to the first connecting pipe, and the cleaner body 400 or the extension pipe 300 is inserted into the other end portion in the axial direction and detachably connected thereto.

[0149] On the other hand, electric wires may be built in the first connection pipe and the second connection pipe, and the electric wires built in the first connection pipe and the second connection pipe may be electrically connected to each other.

[0150] On the other hand, the guide pipe may connect the inner space of the first connecting pipe and the inner space of the second connecting pipe. A flow path may be formed inside the guide pipe so that the air sucked from the wet rag module 100 flows toward the extension pipe 300 and / or the cleaner body 400. At this time, the guide pipe may be deformed together with the rotation of the first connecting pipe and the second connecting pipe. As an example, the guide pipe may be formed in a pleated pipe shape.

[0151] Figures 7 to 9 A three-dimensional diagram of a steam generator in a wet wipe module for illustrating an embodiment of the present invention is shown. Fig.10 A diagram showing an angle for explaining a state in which a steam generator according to an embodiment of the present invention is combined with a module cover body, Fig.11 An exploded perspective view of a steam generator in a wet wipe module for illustrating an embodiment of the present invention is shown. Fig.12 A top view of a heating chamber of a steam generator in a wet wipe module is shown for illustrating an embodiment of the present invention.

[0152] Reference Figures 7 to 12 , a heat generator 200 according to an embodiment of the present invention is described as follows.

[0153] The heat generator 200 may generate high-temperature water or steam (steam) by heating water. The heat generator 200 may heat water supplied from the water tank 120 and supply the water to the rag 150.

[0154] The heat generator 200 is disposed on the wet mop module 100, not on the cleaner body 400. This is to prevent the weight and volume of the steam generator from making the cleaning inconvenient when performing dry cleaning when the steam generator is disposed on the cleaner body.

[0155] The heat generator 200 may be combined with the upper part of the lower cover 111. For example, the heat generator 200 may be combined with the upper part of the flow path forming part 113. At this time, since the flow path forming part 113 is combined with the upper central part of the lower cover 111, the heat generator 200 may also be arranged in the central part of the lower cover 111. With the above-described configuration, when the heat generator 200 is in operation, a specific position of the wet rag module 100 will not be overheated due to the heat supplied from the heat generator 200, thereby having the effect of preventing the wet rag module 100 from being damaged. In addition, the overall volume of the wet rag module 100 can be minimized.

[0156] The heat generator 200 may include a heating chamber 210, a heater 220, a heat insulating member 230, a lower cover 240, a sealing member 250, an upper cover 260, and a temperature detection unit 270. At this time, the heater 220 may be disposed at the lower side of the heating chamber 210, the heat insulating member 230 may be disposed at the lower side of the heater 220, the lower cover 240 may be disposed at the lower side of the heat insulating member 230, and the lower cover 240 covers the lower side of the heat generator 200. In addition, the sealing member 250 may be disposed at the upper side of the heating chamber 210, the upper cover 260 may be disposed at the upper side of the sealing member 250, and the upper cover 260 covers the upper side of the heat generator 200. On the other hand, the temperature detection unit 270 may be provided on the outer side of the heating chamber 210.

[0157] A flow path through which water flows may be formed inside the heating chamber 210 , and the heating chamber 210 may provide a space that receives heat generated from the heater 220 and heats the water flowing in the flow path.

[0158] Specifically, the heating chamber 210 includes a chamber body 211 , a water inlet 212 , a water outlet 213 , and a heating flow path 214 .

[0159] The chamber body 211 forms the appearance of the heating chamber 210 and may provide a flow path that allows water to flow inside. For example, the chamber body 211 may be formed in a shape similar to a regular hexahedron block, and a heating flow path 214 may be formed inside the chamber body 211. In addition, the upper portion of the chamber body 211 may be open, and may be a shape that exposes at least a portion of the heating flow path 214.

[0160] On the other hand, the chamber body 211 may be formed with a water inlet 212 and a water outlet 213. Specifically, the chamber body 211 may be formed with a water inlet 212 and a water outlet 213 on the bottom surface. For example, the chamber body 211 may be formed with one water inlet 212 and a pair of water outlets 213 on the bottom surface.

[0161] At this time, the water inlet 212 and the water outlet 213 are preferably arranged farthest from each other in the left-right direction of the wet cloth module 100. This is to maximize the distance that the water flowing from the water inlet 212 flows before being discharged from the water outlet 213, thereby ensuring sufficient heating time.

[0162] For example, the rear end of the chamber body 211 is disposed at a position higher than the front end of the chamber body 211. That is, the heat generator 200 has an upward inclination at the rear. Thus, water can flow back and forth from the upper rear portion to the lower front portion of the heat generator 200 and be heated.

[0163] The water inlet 212 may be formed at the chamber body 211 , and water may flow in from the water tank 120 . The water inlet 212 may be a hole formed at an inlet end of the chamber body 211 .

[0164] Specifically, a water supply pipe of a water supply unit may be connected to the water inlet 212. For example, the water supply pipe may be coupled to the lower side of the chamber body 211, and the flow path inside the water supply pipe and the water inlet 212 may be connected to each other. Therefore, if the water pump 130 is operated, the water stored in the water tank 120 may flow through the water supply pipe and then flow into the chamber body 211 under the action of the flow force generated in the water pump 130.

[0165] The water discharge port 213 may discharge the water heated inside the chamber body 211. The water discharge port 213 may be a hole formed at an outlet end of the chamber body 211.

[0166] The water discharged through the water discharge port 213 can be supplied to the rag 150. For example, the water discharge port 213 can be arranged vertically above the nozzle hole (not shown) formed in the lower cover body 111. Therefore, if the water pump 130 is operated, the water heated in the chamber body 211 can be supplied to the rag 150 after passing through the nozzle hole under the action of the flow force generated in the water pump 130.

[0167] On the other hand, usually, the bottom surface of the steam generator is arranged parallel to the ground where it is installed. In addition, a pipe for discharging steam is provided on the upper side of the steam generator. Therefore, when the steam generator is operated and generates steam (water vapor), the heated steam rises and is discharged to the outside along the pipe.

[0168] However, in the case of a steam generator of this structure, there is a high possibility that the steam will contact the inner wall or pipe of the steam generator during the rising process and cause drainage. Therefore, it is necessary to reduce the heat loss that may occur during the flow of steam, and even if drainage occurs, it is necessary to reheat it and supply it to the rag.

[0169] In order to solve this problem, the steam generator 200 according to the embodiment of the present invention may be tilted to form a specified angle with the ground.

[0170] Specifically, when the wet wipe module 100 is placed on the ground (when the wipe 150 is placed on the ground and can wipe the ground), the bottom surface of the chamber body 211 may be inclined to form a predetermined angle α with the ground.

[0171] The bottom surface of the lower cover 111 and the bottom surface of the chamber body 211, to which the rotary cleaning unit 140 and the rag 150 are connected, may be arranged to be inclined at a predetermined angle α. That is, the hypothetical extension surface of the bottom surface of the chamber body 211 may intersect the hypothetical extension surface of the bottom surface of the lower cover 111.

[0172] On the other hand, in this embodiment, the height from the bottom surface to the water inlet 212 may be the same as the height from the bottom surface to the water outlet 213. For example, in this embodiment, the water inlet 212 and the water outlet 213 may be formed at the rear of the chamber body 211.

[0173] Furthermore, the bottom surface of the chamber body 211 may form a predetermined angle α with the virtual extension surface of the disk-shaped rotating cleaning unit 140. That is, the virtual extension line of the bottom surface of the chamber body 211 and the virtual extension surface of the rotating cleaning unit 140 may intersect each other.

[0174] The heating flow path 214 is formed in the heating chamber 210 , and is formed so that water flows by connecting the water inlet 212 and the water discharge port 213 .

[0175] Specifically, the heating flow path 214 may be a flow path formed in the chamber body 211. In this case, the heating flow path 214 is formed to communicate with the water inlet 212 and the water discharge port 213.

[0176] The heating flow path 214 may be formed symmetrically with respect to the water inlet 212. For example, the heating flow path 214 may be formed symmetrically (line symmetrically) with respect to one water inlet 212 and communicate with a pair of water discharge ports 213 disposed on both sides of the water inlet 212.

[0177] The heating flow path 214 provides a space for the water flowing in from the water inlet 212 to flow. At this time, the heating flow path 214 can provide a longer flow path to provide time for the water to be sufficiently heated during the flow.

[0178] For example, the heating flow path 214 includes a branch flow path 214a, a descending flow path 214b, a switching flow path 214c, and an ascending flow path 214d.

[0179] The branch flow path 214a may be formed to communicate with the water inlet 212, and may be formed symmetrically with the water inlet 212 as the center. For example, the branch flow path 214a may be formed in a form that branches to both sides from the water inlet 212. As an example, the branch flow path 214a may be a flow path formed in a "Y" shape.

[0180] The descending flow path 214b is formed to communicate with the branch flow path 214a or the conversion flow path 214c. For example, the descending flow path 214b can be a flow path formed in a straight groove shape. The descending flow path 214b can provide a space for water passing through the branch flow path 214a or the conversion flow path 214c to flow downward under the action of gravity.

[0181] The switching flow path 214c is formed so as to communicate with the descending flow path 214b on one side and communicate with the ascending flow path 214d on the other side. That is, the switching flow path 214c may be a flow path connecting the descending flow path 214b and the ascending flow path 214d.

[0182] For example, the conversion flow path 214c may be a groove formed in an arc shape. Therefore, water flowing down along the descending flow path 214b may pass through the conversion flow path 214c and move upward against gravity. In addition, water flowing upward along the ascending flow path 214d may pass through the conversion flow path 214c and move downward under the action of gravity.

[0183] That is, the flow direction of water flowing in the chamber body 211 can be changed by the changeover flow path 214 c .

[0184] The rising flow path 214d is formed to communicate with the switching flow path 214c or the water discharge port 213. For example, the rising flow path 214d may be a flow path formed in a linear groove shape. The rising flow path 214d may provide a space for water passing through the switching flow path 214c to rise against gravity.

[0185] On the other hand, the present embodiment may be configured with at least one branch flow path 214a, a descending flow path 214b, a conversion flow path 214c and an ascending flow path 214d. For example, a branch flow path 214a may be connected to a water inlet 212 and a pair of descending flow paths 214b. Furthermore, each descending flow path 214b connected to the branch flow path 214a may be connected to a conversion flow path 214c. In addition, the other side of the conversion flow path 214c connected to the descending flow path 214b on one side may be connected to an ascending flow path 214d. In addition, the other side of the ascending flow path 214d connected to the conversion flow path 214c on one side may be connected to a conversion flow path 214c again. Furthermore, the connection of the descending flow path 214b, the conversion flow path 214c, the ascending flow path 214d and the conversion flow path 214c as described above may be repeated. Finally, the other side (upper end) of the ascending flow path 214d connected to the conversion flow path 214c on one side may be connected to a water discharge port 213.

[0186] With the above configuration, even if the water flowing into the water inlet 212 is heated and moves upward by convection, it can flow from the upper part to the lower part of the chamber body 211 along the descending flow path 214 b under the action of gravity and be heated.

[0187] In addition, the water passing through the conversion flow path 214 c may flow against gravity under the action of the flow force of the water pump 130 , and flow from the lower part to the upper part of the chamber body 211 along the ascending flow path 214 d and be heated.

[0188] As a result, according to the present invention, the water flowing in through the water inlet 212 can flow along the heating flow path 214 repeatedly descending and ascending and be heated for a sufficient time, and after being heated to the target temperature, can be discharged through the water discharge port 213 .

[0189] The heater 220 can generate heat. The heater 220 is a device that can convert electrical energy into thermal energy and can be implemented using a known structure, so a detailed description is omitted.

[0190] The heater 220 may be disposed at a lower side of the heating chamber 210 and supply heat to the heating chamber 210. The heater 220 may contact at least one side of the heating chamber 210. For example, the heater 220 may contact the bottom surface of the heating chamber 210.

[0191] Therefore, if heat is generated in the heater 220, the heating chamber 210 being in contact with the heater 220 may be heated by conduction. Therefore, the heater 220 may receive power from a battery (not shown) to heat water flowing inside the heating chamber 210.

[0192] On the other hand, the heater 220 can adjust the temperature of the water according to the user's input or a preset control instruction.

[0193] The heat insulating member 230 may be disposed between the heater 220 and the lower cover 240, and block heat transferred from the heater 220. The heat insulating member 230 may be formed to have a wider area than the heater 220. For example, the heat insulating member 230 may be formed in a flat plate form and may be formed of a material capable of blocking heat conduction.

[0194] With the above configuration, the heat generated in the heater 220 can be prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, the heat generated in the heater 220 can be prevented from damaging the components housed in the module housing 110.

[0195] The lower cover 240 can be arranged on the lower side of the heater 220 and cover the heater 220. For example, the lower cover 240 can be formed in a flat plate shape and formed in a shape capable of surrounding the heater 220. The lower cover 240 can be formed of a material capable of blocking the heat generated from the heater 220. By the above-mentioned structure, the heat generated in the heater 220 is prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, it is possible to prevent the components contained in the module cover 110 from being damaged due to the heat generated in the heater 220. In particular, in the present embodiment, the heat generated in the heater 220 is doubly blocked by the heat insulating member 230 and the lower cover 240, thereby maximizing the effect of improving energy efficiency and preventing component damage.

[0196] The seal 250 may be disposed on the upper side of the heating chamber 210 and make the upper side of the heating chamber 210 airtight. Specifically, the seal 250 may make the open upper portion of the chamber body 211 airtight. The seal 250 may be formed of a material capable of blocking the passage of moisture. With the above-described configuration, even if water vapor generated inside the heating chamber 210 rises, it can be blocked by the seal 250, thereby preventing water leakage to the outside.

[0197] The upper cover 260 may be disposed on the upper side of the seal 250 and cover the seal 250. For example, the upper cover 260 may be formed in a flat plate shape, or in a shape capable of surrounding the seal 250. The upper cover 260 may be formed of a material capable of blocking heat transferred through the seal 250. By configuring as described above, the heat generated in the heater 220 is prevented from leaking to the outside of the heat generator 200, thereby improving energy efficiency. In addition, it is possible to prevent the components housed inside the module cover 110 from being damaged due to the heat generated in the heater 220.

[0198] The temperature detection unit 270 can measure the temperature of the heat generator 200. As an example, the temperature detection unit 270 can be a thermistor. In this case, the temperature detection unit 270 can send the information of the measured temperature of the heat generator 200 to the wet wipe module control unit 700. As another example, the temperature detection unit 270 can be a thermostat. In this case, the temperature detection unit 270 can keep the temperature of the heat generator 200 constant by blocking the supply of power when the temperature of the heat generator 200 exceeds a preset target temperature.

[0199] On the other hand, the vacuum cleaner 1 of the present invention may include an extension pipe 300 .

[0200] The extension pipe 300 may be combined with the cleaner body 400 and the wet mop module 100 .

[0201] For example, the extension pipe 300 may be formed in a long cylindrical shape. Therefore, the inner space of the extension pipe 300 may be communicated with the inner space of the wet cloth module 100. In addition, the extension pipe 300 may be communicated with the suction flow path formed in the cleaner body 400.

[0202] When suction is generated by a suction motor (not shown), suction may be provided to the wet rag module 100 through the suction portion of the cleaner body 400 and the extension pipe 300. Therefore, external dust and air may flow into the cleaner body 400 through the wet rag module 100 and the extension pipe 300. In addition, dust and air flowing in through the wet rag module 100 may flow into the cleaner body 400 after passing through the extension pipe 300.

[0203] On the other hand, an electric wire may be built in the extension tube 300 . Therefore, the cleaner body 400 and the wet cloth module 100 may be electrically connected through the extension tube 300 .

[0204] On the other hand, the vacuum cleaner 1 of the present invention may include a vacuum cleaner body 400 .

[0205] The vacuum cleaner body 400 may include a suction motor, a dust cylinder, and a battery. The vacuum cleaner body 400 may receive power from the battery to operate the suction motor, and generate suction force by the operation of the suction motor.

[0206] The cleaner body 400 may be formed with a suction passage through which air and dust flowing in from the wet mop module 100 may flow.

[0207] Furthermore, the cleaner body 400 may be provided with at least one cyclone unit, which separates the dust sucked into the inside by using the principle of a dust collector using centrifugal force, so that the air flowing in through the suction flow path can flow in a spiral manner and separate the dust.

[0208] In addition, the cleaner body 400 is provided with a dust cylinder which can store dust separated from the sucked air by the cyclonic flow.

[0209] In addition, the cleaner body 400 is provided with an input unit, so the user can set not only the power supply and the air suction intensity, but also the rotation intensity of the mop, the water supply, the water heating, and the steam supply.

[0210] Fig.13 A diagram for explaining a control structure of a wet wipe module according to an embodiment of the present invention is shown.

[0211] Reference Fig.13 The control structure of the wet wipe module 100 according to the embodiment of the present invention is described as follows.

[0212] In the embodiment of the present invention, the wet wipe module 100 of the embodiment includes a wet wipe module control unit 700 .

[0213] The wet wipe module control unit 700 may include a memory (not shown) and a timer (not shown). The memory (not shown) may store pre-set information. The timer (not shown) may measure time.

[0214] Although not shown, the wet wipe module control unit 700 may receive a control signal inputted through the vacuum cleaner body 400 or the wet wipe module 100 or an external terminal (not shown). For example, the wet wipe module control unit 700 may be connected to the vacuum cleaner body 400 or the wet wipe module 100 or an external terminal (not shown) in a wired or wireless communication manner.

[0215] The wet mop module control part 700 may control constituent elements included in the wet mop module 100 .

[0216] The wet wipe module control part 700 may be signal-connected to the temperature detection part 270. The temperature detection part 270 may measure the temperature of the heat generator 200 and transmit information of the temperature of the heat generator 200 to the wet wipe module control part 700.

[0217] The wet mop module control part 700 may control the water pump 130 .

[0218] The wet mop module control part 700 may control the amount of water supplied from the water tank 120 to the mop 150 according to the input control signal.

[0219] For example, the wet wipe module control unit 700 may control the operation time of the water pump 130 according to the input control signal. As an example, the wet wipe module control unit 700 may operate the water pump 130 during a preset water supply time Tw.

[0220] In addition, the wet wipe module control unit 700 can supply water by operating the water pump 130 at intervals of a preset water supply cycle Cw. At this time, the water supply cycle Cw can be greater than the water supply time Tw. That is, the water pump 130 can stop operating after operating during the water supply time Tw from the time when the operation starts, and can restart the water pump 130 after the water supply cycle Cw has passed from the time when the operation starts.

[0221] On the other hand, in the present embodiment, the water supply time Tw can be determined based on the output of the water pump 130 (i.e., the amount of water discharged per unit time). At this time, the product of the water supply time Tw and the amount of water discharged per unit time by the water pump 130 is the same as the amount of water that can be accommodated by the heat generator 200. Furthermore, the product of the water supply time Tw and the amount of water discharged per unit time by the water pump 130 is the same as the product of the water supply time Tw and the amount of water discharged to the mop 150 per unit time.

[0222] That is, in this embodiment, the amount of water supplied from the water tank 120 to the heat generator 200 when the water pump 130 operates once is the same as the amount of water that the heat generator 200 can store, and is the same as the amount of water spitted from the heat generator 200 to the rag 150 during one water supply cycle Cw.

[0223] Therefore, according to the present invention, a predetermined amount of water can be heated for a predetermined time and then supplied to the rag 150, thereby having an effect of being able to supply a predetermined amount of water to the rag 150 at a predetermined temperature.

[0224] The wet rag module control unit 700 may control the heater 220. The wet rag module control unit 700 may control the temperature of the water supplied to the rag 150 according to the input control signal. For example, the wet rag module control unit 700 may control the operation time of the heater 220 and the amount of power applied to the heater 220 according to the input control signal. In addition, when the temperature of the heat generator 200 measured in the temperature detection unit 270 is different from the preset target temperature, the wet rag module control unit 700 may change the operation time of the heater 220 and the amount of power applied to the heater 220.

[0225] By configuring as described above, according to the present invention, it is possible to maintain the temperature of the water flowing into the heat generator 200 and increase the energy efficiency.

[0226] In addition, according to an embodiment, the wet wipe module control part 700 may control the driving motor 170. The wet wipe module control part 700 may control the rotation speed (rpm) of the driving motor 170 according to a control input of a user.

[0227] Although the present invention has been described in detail above through specific embodiments, this is only for the purpose of specifically illustrating the present invention and the present invention is not limited thereto. It is obvious that the present invention can be modified or improved within the technical concept of the present invention by a person skilled in the art.

[0228] Simple modifications or changes of the present invention all belong to the field of the present invention, and the specific protection scope of the present invention will be clarified according to the attached claims.

Claims

1. A wet rag module for a vacuum cleaner, wherein the wet rag module for the vacuum cleaner cleans by wiping foreign matter on the ground, characterized in that: include: Module cover; A water tank, combined with the module cover, and storing water inside the water tank; At least one rotating cleaning unit, disposed on the lower side of the module cover, and may be combined with a rag; a heat generator for heating water supplied from the water tank; as well as a water pump, supplying water in the water tank to the heat generator; The heat generator contains the same amount of water as the water supplied by the water pump.

2. The wet rag module of the vacuum cleaner according to claim 1, wherein: The heat generator includes: A heating chamber is formed with a flow path for water flow; a heater to supply heat to the heating chamber; a water inlet formed in the heating chamber for water to flow in from the water tank; and A pair of water discharge ports are formed in the heating chamber for discharging heated water.

3. The wet rag module of the vacuum cleaner according to claim 2, characterized in that: The flow path allows the water inlet to communicate with the pair of water discharge ports, and the flow path is formed symmetrically with respect to the water inlet.

4. The wet rag module of the vacuum cleaner according to claim 2, characterized in that: In the heating chamber, The height at which the water inlet is formed is the same as the height at which the water discharge port is formed.

5. The wet rag module of the vacuum cleaner according to claim 1, wherein: The heat generator comprises: A heating chamber is formed with a flow path for water to flow; a heater in contact with the heating chamber and supplying heat to the heating chamber; A lower cover, disposed on the lower side of the heater and covering the heater; a sealing member disposed on the upper side of the heating chamber and airtightly sealing the upper side of the heating chamber; and The upper cover is arranged on the upper side of the sealing member and covers the sealing member.

6. The wet rag module of the vacuum cleaner according to claim 5, wherein: The heat generator further includes a heat insulating member disposed between the heater and the lower cover.

7. The wet wipe module of a vacuum cleaner according to claim 1, wherein: The heat generator further includes a temperature detection portion that detects a temperature of the heating chamber.

8. The wet rag module of a vacuum cleaner according to claim 1, wherein: The heat generator further includes a temperature detection portion that detects a temperature of the heating chamber.

9. The wet rag module of the vacuum cleaner according to claim 8, characterized in that: The water pump operates during the preset water supply time. The amount of water supplied by the water pump during the water supply time is the same as the product of the water supply time and the amount of water spitted toward the mop per unit time.

10. The wet rag module of the vacuum cleaner according to claim 8, characterized in that: The water pump operates during the preset water supply time. The amount of water contained in the heat generator is equal to the product of the water supply time and the amount of water spitted toward the rag per unit time.

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