Cleaner

Abstract

The present invention relates to a cleaner, and provides the cleaner comprising: a housing having a suction port through which a fluid is suctioned; a roller rotatably coupled to the housing; a moisture supply part, which is provided in the housing and supplies moisture to the roller; and a heating part in contact with at least a portion of the roller so as to heat the roller, wherein the heating part includes a heating plate in contact with the outer peripheral surface of the roller, the moisture supply part includes a water supply tube through which water to be discharged to the roller flows, and at least a portion of the water supply tube is disposed above the heating plate so that both the roller and the water to be discharged to the roller can be heated with one heat source.

Description

Cleaner

[0001] The present invention relates to a vacuum cleaner, and more specifically, to a wet-dry vacuum cleaner capable of sucking up dust from a floor and wiping the floor with a wet mop.

[0002]

[0003] A vacuum cleaner is a device that performs cleaning by sucking up or wiping away dust or foreign matter from an area to be cleaned.

[0004] These vacuum cleaners can be classified into manual vacuum cleaners, which are operated by the user moving the vacuum cleaner themselves, and automatic vacuum cleaners, which operate by driving themselves.

[0005] In addition, manual vacuum cleaners can be classified into canister-type vacuum cleaners, upright-type vacuum cleaners, handheld vacuum cleaners, stick-type vacuum cleaners, etc., depending on the form of the vacuum cleaner.

[0006] Floor cleaning methods are broadly divided into dry cleaning and wet cleaning. Dry cleaning is a method of cleaning by sweeping or sucking up dust, and conventional vacuum cleaners fall into this category. Wet cleaning is a method of cleaning by wiping away dust with a wet mop.

[0007] Conventionally, dedicated dry cleaners were used for dry cleaning, and dedicated wet cleaners were used for wet cleaning. However, there was the inconvenience of having to purchase two types of cleaners to clean various types of floors.

[0008] To solve the aforementioned problems, a wet-dry vacuum cleaner has been developed that is equipped with both a suction port for dry cleaning and a mop for wet cleaning in a single nozzle. This wet-dry vacuum cleaner is equipped with a main body of a vacuum cleaner equipped with a suction motor, a nozzle having a suction port, and a connecting part connecting the main body and the nozzle.

[0009] In addition, conventional wet vacuum cleaners have sought to improve cleaning performance and user convenience by increasing friction with the floor using multiple mops that rotate by electric power.

[0010] However, in the case of contaminants or oil stains strongly adhered to the floor, there was a problem in that they were difficult to completely remove even if they were partially softened upon contact with water.

[0011] In this regard, a technology has been proposed in the past to improve cleaning power by supplying heated water to a mop. However, this structure requires a separate water heating device, and there is a problem in that heat is lost during the process of the heated water moving from the supply unit to the mop, resulting in insufficient temperature being maintained during actual cleaning.

[0012] In addition, U.S. Patent No. 11844477 discloses a wet-dry cleaner equipped with a heating element that heats the roller by making direct contact with it.

[0013] The above wet-dry cleaning machine includes means for spraying water onto a roller and means for heating by directly contacting the roller. Furthermore, a separate configuration is disclosed in which the sprayed water is heated using a separate steam generator.

[0014] However, according to conventional technology, the means for heating the roller and the means for heating the water are configured in a separate structure, which leads to a problem where the internal structure of the vacuum cleaner becomes complex and energy consumption increases.

[0015] In particular, since heat is gradually lost due to heat exchange with the piping and external environment during the transfer process until the heated water is discharged to the roller, there is a problem where the actual temperature decreases at the point of reaching the roller.

[0016] This makes it difficult to maintain a sufficient temperature during the actual cleaning process, resulting in a problem of reduced thermal efficiency.

[0017] In addition, there is a problem in that additional energy is consumed to compensate for this, which reduces the energy efficiency of the overall system.

[0018] Therefore, in order to improve cleaning efficiency with minimal energy, there is a need for a structure capable of supplying hot water while simultaneously maintaining the roller temperature for an extended period.

[0019] Meanwhile, conventional vacuum cleaners primarily utilized corded models powered by a power cable. However, corded vacuums had drawbacks, such as a limited range of movement depending on the cable length, and the cable getting caught on obstacles or obstructing the user's movement during use.

[0020] Recently, the use of cordless vacuum cleaners that do not rely on power cables is increasing to improve ease of use and mobility.

[0021] Since these cordless vacuum cleaners must operate within a limited battery capacity, minimizing energy consumption while maintaining the same performance is an important technical challenge.

[0022] In addition, due to the characteristics of the wireless structure, it is also necessary to optimize the arrangement and structure of internal components to miniaturize and lighten the device.

[0023] Accordingly, a design that improves space efficiency between components also serves as an important consideration.

[0024] Accordingly, there is an increasing need for a structure that can efficiently maintain the roller temperature while minimizing energy consumption and simultaneously improving the space utilization within the device.

[0025]

[0026] The present invention was created to improve upon the problems of conventional vacuum cleaners as described above, and aims to provide a vacuum cleaner capable of reducing the weight of the main body.

[0027] In addition, the purpose is to provide a vacuum cleaner that can improve user convenience by lowering the center of gravity of the main body as close as possible to the joint.

[0028] In addition, the purpose is to provide a cleaner capable of improving cleaning power by raising the temperature of the roller to more effectively remove strongly adhered contaminants or grease.

[0029] In addition, the purpose is to provide a cleaner capable of heating both the roller and the water discharged from the roller using a single heat source when heated water is supplied to the roller as a means of raising the roller's temperature.

[0030] In addition, the purpose is to provide a cleaner that suppresses heat loss occurring during the process of heated water being transported to the roller and maintains the moisture temperature at the point of arrival at the roller.

[0031] In addition, the purpose is to provide a vacuum cleaner that minimizes energy consumption, enabling efficient heating and cleaning even in cordless vacuum cleaners operating in limited power environments.

[0032]

[0033] To achieve the above-mentioned purpose, the vacuum cleaner according to the present invention comprises a housing having a suction port formed therein for sucking in fluid, a roller rotatably coupled to the housing, a water supply unit provided in the housing for supplying water to the roller, and a heating unit that heats the roller by contacting at least a part of the roller, wherein the heating unit includes a heating plate that contacts the outer surface of the roller, and the water supply unit includes a water supply pipe through which water discharged to the roller flows, and at least a part of the water supply pipe may be disposed above the heating plate.

[0034] Additionally, the housing comprises an upper housing, a lower housing coupled to the lower side of the upper housing to form an internal space, and a heating unit cover disposed at the front or rear of the upper housing and covering the upper side of the heating unit, and the water supply pipe may be accommodated in a heating space formed between the heating plate and the heating unit cover, at least a portion thereof.

[0035] Alternatively, the water supply pipe may include a heating section disposed on the upper side of the heating plate, and the heating section may be formed by bending at least once.

[0036] In addition, the heating unit may be detachably coupled to the housing.

[0037] In addition, the heating unit may include a heater disposed on the upper side of the heating plate and a heater holder disposed on the upper side of the heater to accommodate the heater.

[0038] At this time, the housing may include a heating part cover that covers the upper side of the heater holder.

[0039] At this time, the heating member may include an insulating member disposed between the heater holder and the heater.

[0040] In addition, the heating plate may have irregularities formed on the surface in contact with the roller.

[0041] In addition, the heating plate can apply elastic force toward the roller.

[0042] Additionally, the water supply unit comprises a diffuser housing having a channel for water flow formed therein, an inlet formed in the diffuser housing and coupled to the water supply pipe, and a discharge port formed in the diffuser housing and discharging water toward the upper side of the roller, wherein a plurality of discharge ports may be arranged in a direction intersecting the driving direction of the housing.

[0043] In addition, the heating unit includes a heater disposed on the upper side of the heating plate, and a plurality of heaters may be disposed in a direction intersecting the driving direction of the housing.

[0044] Additionally, the roller may include a drive unit operated by a motor provided in the housing, an elastic member disposed on the outside of the drive unit, and a mop detachably attached to the outside of the elastic member and contacting the surface to be cleaned to perform cleaning.

[0045] At this time, the elastic member includes an inner cylinder in contact with the driving unit, an outer cylinder to which the mop is detachably attached, and a support member connecting the inner cylinder and the outer cylinder, and the support member may include a curved surface.

[0046] At this time, the support members may be arranged in multiple numbers along the circumference of the inner cylinder.

[0047] At this time, the above support member may be elastically deformed when an external force is applied.

[0048] Additionally, the housing comprises a lower housing in which the suction port is formed and an upper housing coupled to the upper side of the lower housing to form an internal space, and the lower housing may include a guide member disposed behind the suction port to guide the inflow of gas or liquid and a squeegee extending from the end of the guide member toward the surface to be cleaned.

[0049] Additionally, the device includes a housing having an intake port for sucking in fluid, a roller rotatably coupled to the housing, a water supply unit including a discharge port for supplying water to the roller, and a heating plate that contacts the outer surface of the roller to heat the roller, wherein the water supplied through the discharge port can flow over the upper side of the heating plate.

[0050] Additionally, it may include a housing having an intake port formed for sucking in fluid; a roller rotatably coupled to the housing; a rear roller spaced apart from the rear of the roller and rotatably coupled to the housing; a first heating part that contacts at least a portion of the roller to heat the roller; and a second heating part that contacts at least a portion of the rear roller to heat the roller.

[0051]

[0052] As explained above, the cleaning device according to the present invention has the effect of more effectively removing contaminants or oil stains that are strongly adhered to the cleaning surface.

[0053] In addition, by using a single heat source to heat the rollers and water simultaneously, the structure can be simplified and energy efficiency can be improved.

[0054] In addition, heat loss is reduced during the process of the heated water being transported to the roller, which has the effect of maintaining the moisture temperature upon reaching the roller.

[0055] In addition, it has the effect of ensuring stable heating and cleaning performance while reducing energy consumption even in environments with limited power.

[0056]

[0057] FIG. 1 is a perspective view of a vacuum cleaner according to one embodiment of the present invention.

[0058] Figure 2 is a perspective view of the vacuum cleaner of Figure 1 viewed from a different angle.

[0059] FIG. 3 is an exploded perspective view of a vacuum cleaner according to one embodiment of the present invention.

[0060] Figure 4 is a cross-sectional view of Figure 1.

[0061] FIG. 5 is a side view illustrating a recovery container of a vacuum cleaner according to one embodiment of the present invention.

[0062] FIG. 6 is a perspective view of a nozzle according to one embodiment of the present invention.

[0063] Figure 7 is a cross-sectional view of Figure 6.

[0064] FIG. 8 is an enlarged view illustrating a heating unit according to one embodiment of the present invention.

[0065] FIG. 9 is an exploded perspective view of a heating unit according to one embodiment of the present invention.

[0066] FIG. 10 is a drawing for explaining a diffuser housing according to one embodiment of the present invention.

[0067] FIG. 11 is a cross-sectional view of a nozzle according to a second embodiment of the present invention.

[0068] FIG. 12 is a cross-sectional view illustrating an elastic member of a roller according to one embodiment of the present invention.

[0069]

[0070] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0071] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be interpreted to include all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0072] In describing the present invention, terms such as "first," "second," etc., may be used to describe various components, but said components may not be limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component.

[0073] The term "and / or" may include a combination of multiple related listed items or any of the multiple related listed items.

[0074] When it is stated that one component is "connected" or "connected" to another component, it can be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it can be understood that there are no other components in between.

[0075] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions may include plural expressions unless the context clearly indicates otherwise.

[0076] In this application, terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding in advance the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0077] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and may not be interpreted in an ideal or overly formal sense unless explicitly defined in this application.

[0078] In addition, the following embodiments are provided to explain more completely to those with average knowledge in the industry, and the shapes and sizes of the elements in the drawings may be exaggerated for clearer explanation.

[0079]

[0080] vacuum cleaner body

[0081]

[0082] FIG. 1 is a perspective view of a vacuum cleaner according to one embodiment of the present invention, FIG. 2 is a perspective view of the vacuum cleaner of FIG. 1 viewed from a different angle, FIG. 3 is an exploded perspective view of the vacuum cleaner, and FIG. 4 is a cross-sectional view of FIG. 1.

[0083] Referring to FIGS. 1 to 4, a vacuum cleaner (1) according to one embodiment of the present invention comprises a main body (100), a nozzle (200), a pipe (300), and a handle (400). At this time, the main body (100) and the nozzle (200) may be connected directly or through an extension pipe. Additionally, the pipe (300) may be connected to the handle (400) and coupled to the main body (100).

[0084] With this configuration, when a user grasps and operates the handle (400), the main body (100) combined with the pipe (300) can be moved. At this time, the main body (100) can be rotated relative to the nozzle (200).

[0085] The main body (100) of the vacuum cleaner (1) can provide suction power to the nozzle (200). Additionally, the main body (100) can supply power to the nozzle (200). Furthermore, the main body (100) can control the entire vacuum cleaner (1). Additionally, the main body (100) can store foreign matter on the surface to be cleaned (B) and wastewater generated during the cleaning process.

[0086] Additionally, the main body (100) can be mounted by being attached to a separately provided charging stand (not shown). The charging stand (not shown) can store reserve fresh water and supply the reserve fresh water to the fresh water tank (140) when the vacuum cleaner (1) is attached. The charging stand (not shown) can charge the battery (120) of the vacuum cleaner (1) when the vacuum cleaner (1) is attached.

[0087] The charging stand (not shown) can be connected with the nozzle (200) seated on the horizontal lower part and the main body (100) supported and connected at the vertical rear.

[0088] The charging stand (not shown) can wash or dry the mop (223) of the vacuum cleaner (1) while the vacuum cleaner (1) is mounted thereon.

[0089] The charging stand (not shown) can wash the mop (223) by discharging washing water toward the mop (223) of the vacuum cleaner (1) while the vacuum cleaner (1) is mounted thereon.

[0090] In addition, the charging stand (not shown) can supply drying air toward the mop (223) of the vacuum cleaner (1) while the vacuum cleaner (1) is mounted thereon, thereby drying the mop (223).

[0091] Meanwhile, although not illustrated, an embodiment of the present invention may also be applied to a robot vacuum cleaner (1). In this case, the distinction between the main body (100) and the nozzle (200) described in this specification may be understood as being for explaining the functional configuration.

[0092] When applied to a robot vacuum cleaner (1), components corresponding to the main body (100) can be integrally accommodated inside a housing (210) in which a suction port (212a) is formed. Accordingly, the main body (100) and the nozzle (200) can be implemented as a structure integrated within a single housing rather than as physically separated structures.

[0093] Accordingly, the configurations and functions described for the main body (100) and the nozzle (200) in this specification can be understood as being integrated into a single configuration for the robot vacuum cleaner (1).

[0094] For convenience of explanation, embodiments of the present invention are described below with reference to a handheld vacuum cleaner (1). However, the technical concept of the present invention is not limited thereto and can be applied equally to various types of vacuum cleaners, such as a robot vacuum cleaner (1).

[0095] Meanwhile, the main body (100) may be provided in a form having a longer length along one direction. For example, the main body (100) may be provided in the form of a cylinder or a column overall. In this case, the length direction may be the same direction as the axis direction of the cylinder or column.

[0096] Specifically, the main body (100) includes a motor unit (110). The motor unit (110) can generate a suction force to suck up foreign matter from the surface to be cleaned (B) through the suction port (212a) of the nozzle (200).

[0097] Based on the state where the longitudinal direction of the main body (100) is positioned perpendicular to the ground, the motor unit (110) may be positioned above the battery (120) and the recovery container (130). That is, the motor unit (110) may be positioned closer to the handle (400) than the battery (120) and the recovery container (130). Additionally, the motor unit (110) may be positioned further from the nozzle (200) than the battery (120) and the recovery container (130).

[0098] The motor unit (110) includes a motor housing (111) and a suction motor (112). The motor housing (111) forms the exterior of the main body (100) and can accommodate the suction motor (112) inside. For example, the motor housing (111) may be formed in a cylindrical shape, and a space capable of accommodating the suction motor (112) may be formed inside.

[0099] At this time, a display (150) may be placed at one end in the longitudinal direction of the motor housing (111), and a suction port may be formed at the other end in the longitudinal direction that communicates with the discharge port (138b) of the recovery container (130). The above suction port may communicate with a space in which a suction motor (112) is accommodated. Accordingly, air may be drawn into the suction port by the suction force resulting from the operation of the suction motor (112).

[0100] A recovery container (130) may be detachably coupled to the other end of the motor housing (111) in the longitudinal direction. The other end of the motor housing (111) in the longitudinal direction may be formed to correspond to the shape of the recovery container (130). For example, the other end of the motor housing (111) in the longitudinal direction may have an inclined surface formed at a predetermined angle with respect to the longitudinal direction of the motor housing (111). Through this, the coupling and separation of the recovery container (130) can be easily facilitated.

[0101] Meanwhile, an exhaust port may be formed in the motor housing (111).

[0102] At this time, according to the embodiment, a filter may be placed inside the motor housing (111). For example, the filter may be placed inside the motor housing (111) and positioned facing the exhaust port. At this time, the filter may be a HEPA filter. Through this, fine foreign substances can be removed from the air discharged from the main body (100).

[0103] The suction motor (112) can generate suction force in the suction path. That is, the suction motor (112) can provide suction force to suck up foreign matter from the surface to be cleaned (B).

[0104] The suction motor (112) can generate suction force by rotation. For example, although not illustrated, the suction motor (112) may include a rotor and a stator that rotate relative to each other when power is applied, and may include an impeller that rotates around a rotation axis according to the rotation of the rotor. Accordingly, suction force can be generated by the rotation of the impeller.

[0105] One side of the suction motor (112) may be connected to the suction path of the motor housing (111), and the other side may be connected to the exhaust port of the motor housing (111). When the suction motor (112) is driven, fluid passing through the suction path may flow into the interior of the recovery container (130). Additionally, air inside the recovery container (130) may flow in through the suction port of the motor housing (111).

[0106] The battery (120) can supply power to electronic components provided in the vacuum cleaner (1), including the motor part (110).

[0107] The battery (120) can be detachably coupled to the main body (100). The battery (120) can be detachably coupled to the rear side of the main body (100). The battery (120) can be detachably coupled to the lower side of the fresh water tank (140) to be described later.

[0108]

[0109] The battery (120) can supply power to electronic components equipped in the vacuum cleaner (1), including the motor unit (110). The battery (120) can be charged by an external power source while mounted on a charging stand (not shown). The user can check the remaining charge and charging status of the battery (120) through the display (150).

[0110] The battery (120) can be detachably coupled to the motor housing (111). The battery (120) may include a rail coupling structure that slides from bottom to top to be coupled.

[0111] The battery (120) may be provided with an electrical terminal on one side. The battery (120) may be formed so that the electrical terminal automatically contacts an electrical contact formed on the main body (100) as it moves along a rail.

[0112] The battery (120) can be fixed in position by a locking structure when assembly is complete. The battery (120) can be detached by operating a release button.

[0113] The battery (120) may be positioned below the motor unit (110) and the recovery tank (130). The battery (120) may be positioned below the fresh water tank (140). That is, the battery (120) may be positioned further from the handle (400) than the motor unit (110) and the recovery tank (130). Additionally, the battery (120) may be positioned closer to the nozzle (200) than the motor unit (110) and the recovery tank (130).

[0114] Therefore, in the present invention, the battery (120) can be positioned closer to the ground than the motor part (110) and the recovery container (130).

[0115] By doing this, the battery (120) can be positioned closest to the ground to lower the center of gravity.

[0116] Meanwhile, although not shown, a printed circuit board may be provided in the motor housing (111) or battery (120). A control unit (not shown) may be placed on the printed circuit board. Current may be applied to the printed circuit board, and communication lines may be placed thereon.

[0117] FIG. 5 is a side view illustrating a recovery container of a vacuum cleaner according to one embodiment of the present invention.

[0118] Referring to FIG. 5, the recovery container (130) can store liquid sucked in through the suction port (212a) of the nozzle (200). The recovery container (130) may have a space formed inside to store liquid. Additionally, the recovery container (130) may have a flow path formed inside through which fluid can flow. Furthermore, the recovery container (130) can separate gas and liquid during the process of fluid flow. Additionally, the recovery container (130) can filter and collect foreign substances from the fluid introduced into it.

[0119] The recovery container (130) can be placed on the main body (100). Specifically, the recovery container (130) can be detachably coupled to the lower side of the motor part (110). The recovery container (130) can be connected to a suction port formed in the motor part (110).

[0120] The recovery container (130) includes a recovery container body (131), an inlet pipe (132), and a filter screen (133). At this time, the inlet pipe (132) and the filter screen (133) may be placed inside the recovery container body (131). Meanwhile, according to an embodiment, the inlet pipe (132) may also be placed on the outside of the recovery container body (131).

[0121] A space is formed inside the recovery container body (131) through which fluid can flow. Additionally, liquid can be stored inside the recovery container body (131). For example, the recovery container body (131) can be formed in the shape of a cylinder or an elliptical cylinder overall.

[0122] Meanwhile, one side of the recovery container body (131) in the longitudinal direction may be formed in an open shape. For reference, based on the state where the longitudinal direction of the main body (100) is positioned perpendicular to the ground, one side of the recovery container body (131) in the longitudinal direction facing the motor part (110) may mean the upper side in the direction of gravity, and the other side of the recovery container body (131) in the longitudinal direction facing the battery (120) may mean the lower side in the direction of gravity. For convenience, the recovery container (130) will be described below based on the state where the longitudinal direction of the main body (100) is positioned perpendicular to the ground.

[0123] Accordingly, one side in the longitudinal direction can be called the upper side, and the other side in the longitudinal direction can be called the lower side.

[0124] One side in the longitudinal direction of the recovery container body (131) may be partially closed by the recovery container cover (134). That is, the recovery container cover (134) may have an outlet formed therein for discharging air to the suction motor (112).

[0125] Additionally, the longitudinal side of the recovery container body (131) can be formed in a closed shape, excluding the inlet pipe (132).

[0126] A fluid passage can be formed inside the recovery container body (131). Specifically, an inlet pipe (132) and a filter screen (133) are arranged inside the recovery container body (131) to form a fluid passage together with the inner surface of the recovery container body (131).

[0127] Fluid can be introduced into the inlet pipe (132) from the suction port (212a) of the nozzle (200). The inlet pipe (132) can be formed in the shape of a pipe and placed inside the recovery container body (131). The inlet pipe (132) can be connected to the suction path (212aa) formed in the nozzle (200).

[0128] At this time, the longitudinal height of the inlet pipe (132) may be smaller than the longitudinal height of the recovery tank body (131). At this time, the lower end of the inlet pipe (132) is connected to the lower surface of the recovery tank body (131), and the upper end of the inlet pipe (132) may be positioned lower than the top of the recovery tank body (131). Accordingly, fluid introduced from the lower side of the inlet pipe (132) can flow into the interior of the recovery tank body (131) after passing through the inlet pipe (132).

[0129] At this time, the fluid introduced into the inlet pipe (132) may contain foreign matter. The foreign matter is wet with water and has the characteristic of easily adhering due to increased specific gravity and adhesiveness, making separation easy, but it is necessary to separate the finely atomized liquid and air. To separate the liquid and air, the direction of flow must be changed abruptly.

[0130] In this regard, in the present invention, since the upper side above the inlet pipe (132) is blocked by the recovery container cover (134), the fluid flowing upward while passing through the inlet pipe (132) rapidly changes its direction of flow, so that the liquid with relatively large particles is collected inside the recovery container (130), and the gas with relatively small particles can be discharged toward the motor part (110). That is, a type of impactor is provided inside the recovery container (130) to separate the liquid and the gas.

[0131] A filter screen (133) is provided inside the recovery container body (131) and can filter out foreign substances from the liquid.

[0132] At this time, the filter screen (133) can be arranged to surround the inlet pipe (132) inside the recovery container body (131).

[0133] Meanwhile, the recovery container (130) may be equipped with a detection sensor (not shown). The detection sensor (not shown) is placed within the recovery container body (131) and can detect whether the liquid stored in the recovery container body (131) reaches a preset full amount.

[0134] Specifically, the detection sensor (not shown) may be a contact-type water level sensor. The detection sensor (not shown) can detect that the full amount of liquid has been reached when it comes into contact with the liquid stored in the recovery container body (131).

[0135] At this time, the detection sensor (not shown) may be positioned closer to the ground than the filter screen (133). That is, with the longitudinal direction of the recovery container body (131) positioned perpendicular to the ground, the detection sensor (not shown) may be positioned closer to the ground than the filter screen (133).

[0136] Through this, a detection sensor (not shown) can detect that the liquid stored in the recovery container body (131) has reached full capacity before it flows back into the open part of the inlet pipe (132).

[0137] Meanwhile, in the present invention, the amount of water detected by the detection sensor (not shown) is constant regardless of the angle between the longitudinal direction of the recovery container body (131) and the ground. That is, the amount of water that can be detected by the detection sensor (not shown) when the longitudinal direction of the recovery container body (131) is positioned perpendicular to the ground is the same as the amount of water that can be detected by the detection sensor (not shown) when the longitudinal direction of the recovery container body (131) is positioned parallel to the ground.

[0138] To this end, a detection sensor (not shown) is positioned at a height corresponding to a preset full water level, based on the state where the longitudinal direction of the recovery container body (131) is positioned perpendicular to the ground. Additionally, a detection sensor (not shown) is positioned at a height corresponding to a preset full water level, based on the state where the longitudinal direction of the recovery container body (131) is positioned parallel to the ground.

[0139] With this configuration, even if the recovery container body (131) is vertical, horizontal, or tilted at a predetermined angle relative to the ground, the internal volume can be maintained uniformly, and the amount of water detected by the detection sensor (not shown) can be maintained constant.

[0140] Meanwhile, when a detection sensor (not shown) detects that the water level has reached full capacity, the control unit of the vacuum cleaner (1) can control the suction motor (112) so that it does not operate.

[0141] The recovery container cover (134) can be attached to an open portion of the recovery container body (131). An outlet may be formed in the recovery container cover (134). The outlet refers to a space where air passing through the recovery container cover (134) is discharged toward the motor unit (110). At this time, the lower part of the outlet is connected to the recovery container body (131), and the upper part of the outlet may be formed in a position facing the intake port of the motor housing (111).

[0142] Meanwhile, a filter may be further provided at the outlet of the recovery container cover (134). For example, the filter (138c) may be a pre-filter. Accordingly, foreign substances can be filtered from the gas flowing into the motor unit (110) through the recovery container body (131).

[0143] Meanwhile, the recovery container (130) may further include a recovery container handle (135). The recovery container handle (135) may be formed so that a user can grip it.

[0144] The recovery container handle (135) is positioned on the upper part of the recovery container body (131), but can be positioned in a radially inwardly recessed portion of the recovery container body (131) so as to accommodate at least a portion of the user's fingers and palm.

[0145] Additionally, a lever may be provided on the recovery container handle (135). The lever is coupled to the recovery container handle (135) so as to be movable relative to it, allowing the user to apply pressure while gripping the recovery container handle (135), and a spring may be placed between the recovery container handle (135) and the lever.

[0146] Additionally, a stopper may be provided on the recovery container handle (135). The stopper may be positioned to protrude upward from the top of the recovery container body (131). The stopper may move up and down in conjunction with the movement of the lever. Depending on the engagement state of the stopper, the recovery container (130) may be fixed or released from the motor housing (111).

[0147] With this configuration, when the recovery container (130) is coupled to the lower side of the motor part (110), the stopper is coupled to the lower end of the motor housing (111) to prevent the recovery container (130) from coming off.

[0148] On the other hand, when the user separates the recovery container (130), there is an advantage in that the recovery container (130) can be separated from the motor unit (110) by a simple action of pressing the lever to move the stopper downward and then pulling the recovery container handle (135).

[0149] The vacuum cleaner (1) may include a water tank (140) for storing and supplying moisture.

[0150] The water tank (140) can be detachably coupled to the main body (100). In some cases, the water tank (140) can be placed in the nozzle (200).

[0151] The water tank (140) can supply water by communicating with the water supply part (230) of the nozzle (200) while connected to the main body (100).

[0152] The water tank (140) may be formed so that it is attached to the rear side of the main body (100) and can be directly detached and attached by the user. The water tank (140) may form part of the exterior while attached to the main body (100).

[0153] The fresh water tank body (141) may form a space for storing water internally. The fresh water tank body (141) may have a closed structure to ensure that the stored water is stably maintained. The fresh water tank body (141) may be formed in a shape including a front surface and a rear surface. The fresh water tank body (141) may be formed to correspond to a shape that is accommodated in the main body (100). The fresh water tank body (141) may be formed to secure internal storage capacity while minimizing interference with the internal space of the main body (100).

[0154] The water inlet (142) can be formed as a passage through which water flows from the outside into the interior of the water tank (140). The water inlet (142) can be formed on one side of the water tank body (141).

[0155] The water inlet (142) may be placed on the upper surface of the clean water tank (140). The water inlet (142) may be provided so as to be openable or closed with a stopper.

[0156] The water inlet (142) can be formed to be connected to an external water supply means so that water is supplied automatically. Additionally, the user can remove the plug to directly inject water through the water inlet (142) or discharge the water stored inside.

[0157] The outlet (143) may be formed as a passage supplying water to the water supply unit (230) stored in the clean water tank (140). The outlet (143) may be formed on the lower surface of the clean water tank body (141). The outlet (143) may be connected to the water supply unit (230) through a water supply pipe (231).

[0158] The outlet (143) is connected to a pump or a flow path so that water can be supplied to the diffuser housing (232).

[0159] The fresh water container handle (144) may be formed in a configuration for a user to grasp and move the fresh water container (140). The fresh water container handle (144) may be positioned on the upper side of the fresh water container body (141). The fresh water container handle (144) may be formed so that the user's hand can easily grip it. The fresh water container handle (144) may be used as a gripping part when separating or attaching the fresh water container (140) from the main body (100).

[0160] A lever (144a) is provided on the handle (144) of the fresh water container and can control the connection state of the fresh water container (140). The lever (144a) can release the connection between the fresh water container (140) and the main body (100) depending on the operation. The lever (144a) is linked with a locking structure so that the fresh water container (140) can be fixed to or separated from the main body (100). The lever (144a) can be easily operated by the user. The lever (144a) can improve the convenience of attaching and detaching the fresh water container (140).

[0161] Meanwhile, the display (150) may be positioned on the upper end surface of the motor housing (111). Information regarding the status of the vacuum cleaner (1) may be displayed on the display (150). For example, the operating mode of the vacuum cleaner (1) may be displayed on the display (150). Alternatively, the remaining amount of the battery (120) may be displayed on the display (150). Alternatively, the display (150) may indicate whether the recovery container (130) needs to be emptied. Alternatively, the display (150) may indicate whether water needs to be added to the clean water container (140).

[0162] Meanwhile, according to an embodiment, the display (150) may be capable of receiving user commands. For example, the display (150) may be a touchscreen. Accordingly, the user may set the required operating mode through the display (150).

[0163]

[0164] nozzle

[0165]

[0166] Meanwhile, FIG. 6 is a perspective view of a nozzle according to an embodiment of the present invention, FIG. 7 is a cross-sectional view of FIG. 6, FIG. 8 is an enlarged view for explaining a heating part, FIG. 9 is an exploded perspective view of a heating part, FIG. 10 is a drawing for explaining a diffuser housing, and FIG. 12 is a cross-sectional view for explaining an elastic member of a roller.

[0167] Referring to FIGS. 6 to 12, a nozzle (200) according to one embodiment of the present invention is described as follows.

[0168] The nozzle (200) of this embodiment may be coupled to the lower side of the main body (100). Alternatively, the nozzle (200) may be connected to and used with a handheld vacuum cleaner or a canister vacuum cleaner.

[0169] In this specification, "floor surface" or "surface to be cleaned" may mean the floor surface of a living room or room.

[0170] The nozzle (200) can be connected to the main body (100).

[0171] The nozzle (200) can be operated by receiving power from the main body (100). Specifically, the nozzle (200) can be operated by receiving power from a battery (120) provided in the main body (100).

[0172] As another example, the nozzle (200) can be powered by using a separate battery and a battery mounted on the main body (100). Additionally, the nozzle (200) can be powered by using a separate battery and a battery mounted on the main body (100) as a power source during wet cleaning.

[0173] The main body (100) to which the nozzle (200) is connected includes a suction motor (112), so the suction force generated by the suction motor (112) can be applied to the nozzle (200).

[0174] Accordingly, in this embodiment, the nozzle (200) can perform the role of sucking in foreign matter and air from the floor surface and guiding them to the main body (100). In addition, the nozzle (200) can perform wet cleaning using water by contacting the surface to be cleaned (B) through a wet mop.

[0175] A nozzle (200) according to one embodiment of the present invention may include a housing (210), a roller (220), a water supply unit (230), and a heating unit (240).

[0176] For reference, the direction used in the present invention is explained as follows.

[0177] In the present invention, the forward and backward directions of the nozzle (200) can be defined based on the direction of movement of the vacuum cleaner (1). Specifically, based on the direction in which the vacuum cleaner (1) moves forward, the direction in which the tip of the nozzle (200) faces can be called the forward direction, and the opposite direction can be called the rear direction.

[0178] Additionally, based on the view of the nozzle (200) from the front of the nozzle (200), the left side can be referred to as the left side of the nozzle (200), and the right side can be referred to as the right side of the nozzle (200). Furthermore, the direction connecting the left and right sides can be called the left-right direction. The left-right direction may refer to a direction perpendicular to the front-back direction and the horizontal plane.

[0179] Additionally, based on the state in which the nozzle (200) is placed on the bottom surface (surface to be cleaned), the direction away from the bottom surface can be called the upward direction (upper side), and the direction closer to the bottom surface can be called the downward direction (lower side).

[0180] The housing (210) is equipped with a roller (220) and can form the outer shape of the nozzle (200). Additionally, the main body (100) can be coupled to the housing (210).

[0181] The nozzle (200) is equipped with at least one roller.

[0182] If the nozzle (200) is equipped with a single roller (220), the roller (220) may be positioned further forward than the suction port (212a).

[0183] As another example, a nozzle (200) according to one embodiment of the present invention may further include a rear roller (250). When the nozzle (200) is equipped with a roller (220) and a rear roller (250), a suction port (212a) may be disposed between the roller (220) and the rear roller (250).

[0184] In this case, the roller (220) is driven to rotate in one direction to move foreign matter from the front to the rear, and the rear roller (250) can be driven to rotate in the other direction to move foreign matter from the rear to the front.

[0185] The housing (210) may include a lower housing (212) and an upper housing (211) coupled to the upper side of the lower housing (212).

[0186] The housing (210) may include an upper housing (211) to which the main body (100) is coupled. Specifically, based on the state in which the surface to be cleaned (B) is in contact with the roller (220), the front of the upper housing (211) may be formed in a curved shape of a predetermined curvature corresponding to the shape of the roller (220).

[0187] The upper housing (211) may have a main body coupling part (211a) formed therein to which the main body (100) is coupled. The main body coupling part (211a) may be formed to protrude upward from the upper side of the upper housing (211). The main body (100) may be rotatably coupled to the main body coupling part (211a). The main body (100) may be coupled to the main body coupling part (211a) so as to be tiltable forward or backward.

[0188] A heating unit cover (213) may be disposed at the front or rear of the upper housing (211). The heating unit cover (213) may form the exterior of the nozzle (200) together with the housing (210). The heating unit cover (213) may form the exterior of the nozzle (200) together with the upper housing (211). The heating unit cover (213) may be disposed on the upper side of the housing (210).

[0189] The heating unit cover (213) can be detachably coupled to the upper housing (211). The user can access the heating unit (240) by removing the heating unit cover (213).

[0190] The housing (210) may include a lower housing (212) that is coupled to the upper housing (211) to form a space inside. The lower housing (212) may be coupled to the lower side of the upper housing (211).

[0191] At this time, the lower housing (212) can be positioned to face the bottom surface while the housing (210) is placed on the bottom surface (surface to be cleaned).

[0192] A suction port (212a) may be formed in the housing (210). Specifically, a suction port (212a) may be formed in the lower housing (212). The suction port (212a) may be formed between the roller (220) and the squeegee (212d). The suction port (212a) may be formed between the roller (220) and the caster (212b).

[0193] The suction port (212a) refers to a space into which fluid, including air and liquid, can be introduced. With this configuration, when the suction motor (112) is operated, air and liquid present around the bottom surface can flow through the suction port (212a) into the suction path (212aa) formed inside the nozzle (200). The fluid can flow along the suction path (212aa) and flow into the recovery container (130).

[0194] If the nozzle (200) is equipped with a single roller (220), the suction port (212a) may be positioned at the rear of the roller (220).

[0195] When the nozzle (200) is equipped with a roller (220) and a rear roller (250), a pair of suction ports (212a) may be positioned at the rear of the roller (220) and in front of the rear roller (250), respectively. The pair of suction ports (212a) are connected to a single suction channel (212aa) so that fluid can be sucked in simultaneously by the suction force of a suction motor.

[0196] A roller (220) can be rotatably coupled to the lower housing (212).

[0197] Alternatively, a roller (220) and a rear roller (250) may be rotatably coupled to the lower housing (212).

[0198] Additionally, moisture remaining on the mop (223) is partially removed as it passes through the scraper (212e), and the removed water can be introduced into the suction path (212aa) through the suction port (212a) along with air.

[0199] A suction channel (212aa) may be formed in the housing (210) in communication with the suction port (212a) to guide air flowing in from the suction port (212a) to the main body (100).

[0200] The suction channel (212aa) may be positioned inside the housing (210). One end of the suction channel (212aa) is in communication with the suction port (212a), and the other end of the suction channel (212aa) may be in communication with the main body (100).

[0201] A caster (212b) may be disposed on the lower housing (212). The caster (212b) is disposed on the lower housing (212) and can roll along the bottom surface (surface to be cleaned). At least a portion of the caster (212b) may be exposed to the outside of the housing (210).

[0202] When the nozzle (200) is placed on the floor surface, the caster (212b) may come into contact with the floor surface. When the nozzle (200) is placed on the floor surface, the caster (212b) may come into contact with the floor surface together with the roller (220).

[0203] Accordingly, when the nozzle (200) is moved by user operation or advanced by the rotational force of the roller (220), friction between the housing (210) and the bottom surface can be reduced and the movement of the nozzle (200) can be assisted.

[0204] The lower housing (212) may include a guide member (212c) that guides the inflow of gas or liquid.

[0205] When the nozzle (200) is equipped with a single roller (220), the guide member (212c) is positioned behind the suction port (212a) to guide the inflow of gas or liquid.

[0206] When the nozzle (200) is equipped with a roller (220) and a rear roller (250), a guide member (212c) is positioned between the roller (220) and the rear roller (250) and can guide water and foreign matter into the suction path (212aa). The guide member (212c) branches the suction path (212aa) into the roller (220) side and the rear roller (250) side.

[0207] The guide member (212c) is provided with a shape that becomes convex toward the center in the front-rear direction and has a protrusion at the center in the front-rear direction.

[0208] The protrusion is positioned at the lower part of the suction channel (212aa) and is formed such that a part of the guide member (212c) protrudes toward the suction channel (212aa), thereby separating water and foreign matter from the guide member (212c) and allowing it to be easily transferred to the recovery container (130).

[0209] The lower housing (212) may include a squeegee (212d) that extends from the end of the guide member (212c) toward the surface to be cleaned (B). The squeegee (212d) is configured to improve the suction power of the nozzle (200) and can guide foreign substances or residual water that were not sucked into the nozzle (200) to the suction port (212a).

[0210] When the nozzle (200) is equipped with a single roller (220), the squeegee (212d) may be positioned behind the suction port (212a). Additionally, the suction port (212a) may be positioned between the squeegee (212d) and the roller (220). The squeegee (212d) can block the flow of air flowing from the rear to the front when suction force is generated at the nozzle (200). Accordingly, foreign matter or residual water leakage to the rear can be suppressed.

[0211] A squeegee (212d) may be provided in the housing (210) to contact the surface to be cleaned (B). The squeegee (212d) may be formed to provide elastic support so as to make contact without gaps by applying a supporting force to the surface to be cleaned (B). The squeegee (212d) may be arranged to extend along the left and right directions from the rear of the suction port (212a) of the housing (210). The squeegee (212d) may extend toward the roller (220), and its end may be bent toward the ground.

[0212] The squeegee (212d) may be made of an elastic material. The squeegee (212d) may be elastically deformed when the roller (220) is placed on the surface to be cleaned (B).

[0213] A squeegee (212d) may be formed extending from the end of the guide member (212c) toward the surface to be cleaned. The squeegee (212d) may be formed integrally with the guide member (212c) or may be combined with a separate member. The squeegee (212d) may be positioned to protrude downward from the end of the guide member (212c) and come into contact with the surface to be cleaned.

[0214] A scraper (212e) for removing residual moisture from the roller (220) may be disposed on the upper side of the squeegee (212d). The scraper (212e) may be provided in the lower housing (212) and formed in a shape that protrudes toward the roller (220) and is then bent downward. The scraper (212e) may be made of an elastic material. At least a portion of the scraper (212e) may come into contact with the roller (220).

[0215] Additionally, a suction channel (212aa) may be provided between the scraper (212e) and the squeegee (212d). Water and air removed by the scraper (212e) may be introduced into the vacuum cleaner nozzle through the suction port (212a).

[0216] A water supply unit (230) may be positioned at the rear of the scraper (212e). The water supply unit (230) can supply water from the clean water tank (140) to the roller (220). A detailed description of the water supply unit (230) will be provided below.

[0217] The nozzle (200) may be equipped with a cleaning unit for cleaning the floor surface. Specifically, the cleaning unit may refer to a roller (220).

[0218] The roller (220) is installed in the housing (210) and serves to clean the surface to be cleaned (B).

[0219] If the nozzle (200) is equipped with a single roller (220), the roller (220) may be positioned forward of the nozzle (200). The roller (220) may be rotatably coupled to the housing (210).

[0220] The roller (220) may include a drive unit (221) operated by a drive motor (not shown) provided in the housing (210), an elastic member (222) disposed on the outside of the drive unit (221), and a mop (223) detachably attached to the outside of the elastic member (222) to contact the surface to be cleaned (B) and perform cleaning.

[0221] The driving unit (221) is formed in a cylindrical shape and can be extended along the left and right directions of the housing (210). That is, the longitudinal direction (axial direction) of the driving unit (221) can be arranged in a direction that intersects the direction of travel of the nozzle (200).

[0222] At least one gear is provided inside the housing (210) to receive rotational power from a drive motor (not shown). The drive motor (not shown) may be housed inside the drive unit (221). Alternatively, the drive motor (not shown) may be provided on one side in the axial direction of the drive unit (221).

[0223] The driving unit (221) can guide fluid to the suction port (212a) by rotation. The driving unit (221) can be rotated so that the outer surface of the mop (223) facing the floor surface moves toward the suction port (212a).

[0224] The fluid on the surface to be cleaned (B) can be guided toward the suction port (212a) while frictionally rubbing against the mop (223) attached to the outer surface of the driving unit (221).

[0225] Meanwhile, the drive unit (221) can be replacedly coupled to the housing (210). Accordingly, the user can attach or detach the mop (223) while the drive unit (221) is detached, thereby allowing for easy cleaning and replacement of the mop (223).

[0226] Additionally, the rotation of the drive unit (221) can generate frictional force between the mop (223) and the surface to be cleaned (B). This frictional force can also act as a driving force to assist the driving motion of the nozzle (200).

[0227] Additionally, the drive unit (221) can be configured to be movable in a vertical direction.

[0228] The roller (220) may be provided with an elastic member (222) disposed around the perimeter of the driving unit (221). The elastic member (222) is configured to be elastically deformable when an external force is applied and may be disposed on the radial outer side of the driving unit (221).

[0229] For example, the elastic member (222) may be composed of an inner cylinder (222a), an outer cylinder (222b), and a support member (222c).

[0230] The inner cylinder (222a) is positioned to surround the driving unit (221), and the outer cylinder (222b) can be provided so that a rag (223) can be attached to the outside.

[0231] A plurality of support members (222c) may be arranged along the circumference of the inner cylinder (222a). The support members (222c) may be elastically deformed when an external force is applied.

[0232] Specifically, the support members (222c) are provided in multiple numbers between the inner cylinder (222a) and the outer cylinder (222b), and are arranged at equal intervals in the circumferential direction to provide a uniform elastic repulsion force in the circumferential direction.

[0233] The support member (222c) may include a curved surface. Specifically, the support member (222c) may be provided in the form of a curved plate, with one end connected to the inner cylinder (222a) and the other end connected to the outer cylinder (222b).

[0234] The support member (222c) can be positioned so as to face in the opposite direction of rotation of the roller (220) from one end to the other.

[0235] Through this, when cleaning a surface that is curved or has foreign matter, only the roller (220) is elastically deformed while the squeegee (212d) can maintain contact with the surface to be cleaned.

[0236] Accordingly, the contact area with foreign matter on the cleaning target surface increases due to elastic deformation of the roller (220), and the squeegee (212d) maintains contact with the cleaning target surface, thereby reducing leakage of foreign matter or residual water that is not sucked into the cleaning nozzle (200).

[0237] Additionally, as the squeegee (212d) maintains contact with the surface to be cleaned, the roller (220) can be restored.

[0238] Specifically, FIG. 12 illustrates the state before and after when a roller (220) according to one embodiment of the present invention comes into contact with a hard contaminant on a surface to be cleaned (B).

[0239] Referring to FIG. 12, if there is a relatively hard contaminant on the surface to be cleaned (B) during the cleaning process, the roller (220) can be pressed upward while in contact with the contaminant.

[0240] At this time, the heating plate (241) is positioned to contact and support the upper side of the roller (220), so as to press the upper side of the roller (220). At the same time, the support portion (222c) of the elastic member (222) can be elastically deformed and crushed in the downward direction by an external force.

[0241] Accordingly, the roller (220) deforms in response to the shape of the contaminant, while the squeegee (212d) maintains a state of close contact with the surface to be cleaned (B).

[0242] As a result, the sealing around the suction port (212a) is maintained, so the suction power can be maintained without decreasing.

[0243] Additionally, as the roller (220) undergoes elastic deformation, it can suck in foreign matter larger than the opening. When the roller (220) undergoes elastic deformation, the size of the opening may increase.

[0244] Meanwhile, at least a portion of the elastic member (222) may be deformed by the pressure applied by the heating plate (241) of the heating unit (240) to be described later. Accordingly, the elastic member (222) may provide an elastic restoring force to maintain the contact state between the heating plate (241) and the roller (220).

[0245] Due to the deformation of the elastic member (222), the heating plate (241) can maintain a state of close contact with the outer surface of the roller (220). Accordingly, heat can be transferred from the heating plate (241) to the roller (220). In addition, the roller (220) can be continuously heated by maintaining contact with the heating plate (241) while rotating.

[0246] A mop (223) may be attached to the outer surface of the drive unit (221). The mop (223) may be detachably provided through various coupling structures such as Velcro, clips, and slide inserts. A portion of the mop (223) exposed to the lower side of the vacuum cleaner (1) may come into contact with the surface to be cleaned (B).

[0247] The mop (223) is formed of a fabric or brush material and can absorb moisture or physically remove foreign matter. The mop (223) can perform wet cleaning by absorbing water supplied from the moisture supply unit (230).

[0248] Alternatively, the roller (220) may be configured so that the roller (220) itself is supplied with moisture and performs the function of a wet mop without a separate mop (223).

[0249] While the mop (223) is in contact with the surface to be cleaned (B), the surface of the mop (223) facing the surface to be cleaned (B) can move toward the rear. Conversely, while the mop (223) is in contact with the surface to be cleaned (B), the surface of the mop (223) facing the surface to be cleaned (B) can move toward the front. In this way, the surface of the mop (223) can move toward the front or the rear depending on the forward and reverse rotation of the drive motor (not shown).

[0250] When the mop (223) is placed on the floor surface, the mop (223) is in close contact with the floor surface due to the load of the nozzle (200), so the frictional force between the mop (223) and the floor surface increases.

[0251] The mop (223) can be wet-cleaned by receiving water through a water supply unit (230) located at the rear upper side. Through this, the nozzle (200) allows the wet mop (223) to clean the surface to be cleaned.

[0252] When the nozzle (200) is equipped with a single roller (220), the drive unit (221) can rotate counterclockwise from the perspective of looking at the nozzle (200) from the left side of the nozzle (200). The mop (223) that has passed the surface to be cleaned continues to rotate and can pass through the scraper (212f) located at the rear and lower side. At this time, the remaining moisture of the mop (223) is removed, and the removed water can be introduced into the suction port (212a) along with air.

[0253] This ensures that no excessive moisture remains on the surface to be cleaned.

[0254] When the nozzle (200) is equipped with a roller (220) and a rear roller (250), the roller (220) can rotate counterclockwise and the rear roller (250) can rotate clockwise based on looking at the nozzle (200) from the left side of the nozzle (200).

[0255] In this case, foreign matter can be induced to gather between the two rollers (220, 250), and the gathered foreign matter can be sucked in through a pair of suction ports (212a). Additionally, the rear roller (250) can effectively remove moisture remaining on the surface to be cleaned.

[0256] Alternatively, the roller (220) may be actively rotated by the drive unit (221), and the rear roller (250) may be manually rotated by friction with the surface to be cleaned without separate driving. In this case, the rear roller (250) may perform the function of removing moisture remaining on the surface to be cleaned while assisting the movement of the nozzle (200).

[0257] A heating unit (240) is disposed on the upper side of the roller (220) to heat the roller (220). Additionally, moisture can be supplied to the roller (220) from an adjacent discharge port (234).

[0258] The nozzle (200) of the present invention may include a water supply unit (230) having a flow path formed therein for supplying water flowing in from the clean water tank (140) to the roller (220).

[0259] The moisture supply unit (230) is provided in the housing (210) and can supply moisture to the roller (220).

[0260] The water supply unit (230) is positioned above the mop (223) and can discharge water onto the upper surface of the mop (223). For example, the water supply unit (230) can be positioned above the guide member (212c).

[0261] The water supply unit (230) may be configured to discharge water from the clean water tank (140) to the mop (223). Specifically, the water supply unit (230) includes at least one discharge port (234) and can discharge water supplied from the clean water tank (140) to the upper side of the roller (220) through the discharge port (234).

[0262] The moisture supply section (230) can be formed to extend along the length direction of the roller (220).

[0263] The water supply unit (230) has an inlet (233) connected to the water supply pipe (231), so that water supplied through the water supply pipe (231) can flow into the diffuser housing (232).

[0264] As another example, the water supply unit (230) may be positioned facing the surface to be cleaned and discharge water toward the surface to be cleaned.

[0265] Meanwhile, the water supply unit (230) may further include a steam supply unit. The steam supply unit is placed in the housing (210) and can generate hot water or steam by heating the water in the fresh water tank (140). The hot water or steam can be introduced into the water supply unit (230) through the water supply pipe (231).

[0266] Next, hot water or steam can be sprayed onto the mop (223) through the discharge port (234). Accordingly, the nozzle (200) can supply water and steam to the mop (223) selectively or simultaneously.

[0267] The water supply unit (230) may include a water supply pipe (231) through which water stored in a clean water tank (140) flows, a diffuser housing (232) in which a water flow path is formed inside, an inlet (233) formed in the diffuser housing (232) and coupled to the water supply pipe (231), and an outlet (234) formed in the diffuser housing (232) for discharging water to the upper side of the roller (220).

[0268] Water discharged to the roller (220) can flow through the water supply pipe (231). The water supply pipe (231) can connect the fresh water tank (140) and the diffuser housing (232).

[0269] The diffuser housing (232) can form a channel through which water flows inside. The diffuser housing (232) serves to distribute water supplied from the water supply pipe (231) to a plurality of discharge ports (234).

[0270] The diffuser housing (232) may be formed in a shape that extends in the left and right directions. The internal flow path of the diffuser housing (232) may include a structure that branches to the left and right. Accordingly, the diffuser housing (232) may be connected to each of the multiple discharge ports (234).

[0271] An inlet (233) is formed in the diffuser housing (232) and can be connected to a water supply pipe (231). The inlet (233) can be opened upward or to the left or right sides.

[0272] The inlet (233) can be connected to the end of the water supply pipe (231) to allow water to flow into the diffuser housing (232).

[0273] An inlet (233) may be formed in the diffuser housing (232). Accordingly, water introduced through the water supply pipe (231) can be delivered to the internal flow path of the diffuser housing (232).

[0274] The discharge port (234) is formed in the diffuser housing (232) and can discharge water toward the upper side of the roller (220). The discharge port (234) may be formed on the lower side of the diffuser housing (232). The discharge port (234) may be positioned to be open toward the roller (220).

[0275] Multiple discharge ports (234) may be arranged along the longitudinal direction of the water supply unit (230). Multiple discharge ports (234) may be arranged in a direction intersecting the driving direction of the housing (210). Accordingly, water can be uniformly supplied along the longitudinal direction of the roller (220) through the multiple discharge ports (234).

[0276] Water supplied through the discharge port (234) can flow over the upper side of the heating plate (241). Specifically, at least a portion of the water supply pipe (231) may be positioned over the upper side of the heating plate (241). At least a portion of the water supply pipe (231) may be accommodated in the heating space (S) formed between the heating plate (241) and the heating unit cover (213).

[0277] Here, the heating space (S) may refer to a space enclosed by the upper surface of the roller (220) and the heating unit cover (213). Alternatively, the heating space (S) may refer to a space enclosed by the upper surface of the heater holder (243) and the lower surface of the heating unit cover (213). The heating space (S) may refer to a space where air is heated by the heater (242).

[0278] The water supply pipe (231) is positioned adjacent to the heating unit (240) so that the temperature of the water supplied to the roller (220) can be increased using the heat from the heating unit (240).

[0279] Specifically, at least a portion of the water supply pipe (231) may be positioned above the heating section (240).

[0280] The water supply pipe (231) may include a flow section in which water flows and a heating section in which water flows and is heated by the heat of the heating section (240) at the same time.

[0281] Here, the heating section is a part of the water supply pipe (231) and may refer to a part where water flowing inside is heated, positioned adjacent to the heating section (240).

[0282] Alternatively, the heating section may refer to a portion of the water supply pipe (231) that is positioned above the heating section (240).

[0283] The heating section of the water supply pipe (231) may be positioned adjacent to the heating section (240). Specifically, the heating section may be positioned above the heating section (240).

[0284] Meanwhile, the heating unit (240) is composed of a heater (242) and a heating plate (241), and one side of the heater (242) may be positioned to be in contact with the heating plate (241). The other side of the heater (242) may be positioned to face the water supply pipe (231).

[0285] Accordingly, the water supply pipe (231) recovers thermal energy from the heating unit (240), and uses the waste heat from the heating unit (240) to increase the temperature of the supply water supplied to the roller (220), thereby improving the thermal efficiency of the entire system.

[0286] Additionally, heat generated from the heater (242) can be transferred to the surface of the roller (220) through the heating plate (241) and simultaneously transferred toward the water supply pipe (231) to heat the water to be supplied to the roller (220).

[0287] The water supply pipe (231) can be positioned to pass over the upper part of the heating section (240).

[0288] When the nozzle (200) is equipped with a single roller (220), the discharge port (234) connected to the water supply pipe (231) may be positioned behind the heating unit (240).

[0289] The roller (220) receives water from the water supply pipe (231) according to rotational drive and then comes into contact with the heating unit (240), and can further rotate to come into contact with the object to be cleaned.

[0290] Accordingly, the supply water in a hot water state can be absorbed before the roller (220) comes into contact with the heating unit (240), and the instantaneous heating function of the roller (220) can be improved.

[0291] Through this arrangement structure, the supply water can be heated at a location adjacent to the discharge port (234). Accordingly, the supply water is heated just before being discharged, thereby reducing heat loss during the flow process.

[0292] At this time, the water supply means connected to the water supply pipe (231) may be structured such as centrifugal drainage through supply to the center of rotation or moisture infusion through external spraying.

[0293] The water supply pipe (231) includes a heating section positioned above the heating plate (241), and the heating section may be formed by bending at least once.

[0294] Specifically, the water supply pipe (231) extends along the upper side of the water supply unit (230), then extends to the upper side of the roller (220) located in front of the housing (210), and then is bent again toward the rear of the housing (210) to be connected to the inlet (233).

[0295] Alternatively, the water supply pipe (231) may be formed by bending in the left and right directions. Specifically, the water supply pipe (231) may be arranged by bending multiple times in a manner that reciprocates along the left and right directions of the housing (210).

[0296] As another example, although not shown, the water supply pipe (231) can be formed in a shape that is bent multiple times.

[0297] Accordingly, the length of the heating section of the water supply pipe (231) can be increased. The water supply pipe (231) can have a longer section in contact with the heating section (240) due to its bent structure. As a result, the water flowing through the water supply pipe (231) can receive sufficient heat from the heating section (240). Additionally, the heating section of the water supply pipe (231) can increase the heat exchange path while being positioned within the same space due to its bent structure.

[0298] Accordingly, the water supply pipe (231) can be continuously heated until just before the supply water reaches the discharge port (234).

[0299] The heating unit (240) may be configured to heat by raising the temperature of the roller (220).

[0300] The heating unit (240) is positioned adjacent to the roller (220) and can heat the roller (220) just before the roller (220) comes into contact with the surface to be cleaned.

[0301] The heating unit (240) can also heat the moisture absorbed by the roller (220).

[0302] Accordingly, the roller (220) can more easily dissolve or peel off foreign substances from the object to be cleaned by using the heat energy received from the heating unit (240).

[0303] The heating unit (240) can transfer heat through contact with the roller (220) or transfer heat through air while separated from the roller (220) by a predetermined distance.

[0304] For example, the heating unit (240) can directly heat the roller (220) and the water absorbed by the roller (220).

[0305] The roller (220) contacts the heating unit (240) before contacting the surface to be cleaned, and can clean the surface to be cleaned while the surface temperature is instantaneously raised by the heating unit (240). Accordingly, the roller (220) can more easily dissolve and peel off foreign substances from the surface to be cleaned with minimal power and can effectively remove them.

[0306] The heating portion (240) may be provided to surround at least a portion of the roller (220) to secure a contact area with the roller (220).

[0307] The heating unit (240) may include a heating unit cover (213), a lower cover (245), a heating plate (241), a heater (242), a heater holder (243), and an insulating member (244).

[0308] The heater (242) can be placed in contact with the heating plate (241) and its temperature rises when power is supplied. When power is applied, the heater (242) can raise the temperature of the heating plate (241).

[0309] A heater (242) can be coupled to one side of a heating plate (241) to supply heat to the heating plate (241). For example, the heater (242) can be positioned on the upper side of the heating plate (241).

[0310] The heating plate (241) may be provided with a heater insertion groove into which a heater (242) is inserted.

[0311] The heater (242) can be placed in the heater insertion groove of the heating plate (241).

[0312] A plurality of heaters (242) may be arranged in a direction intersecting the driving direction of the housing (210).

[0313] Accordingly, the water flowing along the water supply pipe (231) can continuously receive heat throughout the heating section. Accordingly, the water can maintain a heated state until just before being discharged through the discharge port (234).

[0314] The heating plate (241) can be formed of a heat conductor and is positioned to surround at least a portion of the roller (220) and can receive heat from the heater (242) to raise its temperature.

[0315] The heating element (240) may be provided in a housing (210) that encloses the roller (220) and positioned to be in contact with the roller (220). The housing (210) may be positioned to enclose at least a portion of the roller (220).

[0316] The heating plate (241) of the heating unit (240) may be positioned to contact the outer surface of the roller (220) on the upper side of the roller (220). The heating plate (241) may contact the outer surface of the roller (220).

[0317] The heating plate (241) can apply elastic force toward the roller (220). Specifically, the heating plate (241) can contact and support the roller (220). Accordingly, the heating plate (241) can maintain a state of close contact by pressing downward while contacting and supporting the roller (220).

[0318] Additionally, the roller (220) can come into contact with the heating part (240) while remaining separated from the housing (210) by the pressure of the heating plate (241).

[0319] Additionally, the heating unit (240) may have at least one uneven pattern on the surface in contact with the roller (220) to increase the contact area with the roller (220).

[0320] The heating plate (241) may have irregularities formed on the surface that contacts the roller (220). Specifically, the irregularities may be formed in the form of protrusions or grooves.

[0321] At this time, the roller (220) is provided with an internal elastic member (222) made of a material capable of elastic deformation, and is deformed by the uneven pattern of the heating part (240), thereby increasing the contact area with the heating part (240).

[0322] As a result, the contact area between the heating plate (241) and the roller (220) can be increased. Accordingly, the heat transfer efficiency from the heating plate (241) to the roller (220) can be improved.

[0323] With this configuration, the heating plate (241) can heat the roller (220) and simultaneously heat the water contained in the heating space (S). Additionally, the heating plate (241) can heat the roller (220) and simultaneously raise the temperature of the heating space (S).

[0324] The heater holder (243) is positioned above the heater (242) to accommodate the heater (242). The heating unit cover (213) can cover the upper side of the heater holder (243).

[0325] A heater holder (243) may be positioned between the heating unit cover (213) and the heating plate (241). The heater holder (243) may support the heater (242) so that it is positioned above the heating plate (241). The heater holder (243) may be formed to prevent the heater (242) from coming loose.

[0326] A heat sensor may be placed in the heater holder (243). The heat sensor may detect the temperature of the heater (242) or the heating plate (241). The operation of the heater (242) may be controlled according to the detection result of the heat sensor.

[0327] The heater holder (243) can be fixedly connected by a connecting portion formed inside the housing (210). The heater holder (243) can be connected to the heating unit cover (213) or the lower cover (245) by a fastening structure. The heater holder (243) can be configured to be detachable during the assembly of the heating unit (240).

[0328] It may include an insulating member (244) disposed between the heater holder (243) and the heater (242).

[0329] The insulating member (244) may be positioned to cover the heater (242). The insulating member (244) may be positioned to cover the side opposite to the side in contact with the heating plate (241) of the heater (242) so as to block the heat of the heater (242) from being transferred to surrounding parts.

[0330] The lower cover (245) is positioned above the roller (220) and can support the heating plate (241). The lower cover (245) may be positioned to wrap around at least a portion of the roller (220). The lower cover (245) may be positioned to wrap around the outer surface of the roller (220) together with the heating plate (241).

[0331] The insulating member (244) may be formed of a material with low thermal conductivity. The insulating member (244) can prevent excessive transfer of heat generated from the heater (242) to the heater holder (243) or housing (210).

[0332] The insulating member (244) can prevent the water supply pipe (231) placed on the upper side of the heater holder (243) from being deformed or damaged by heat.

[0333] The lower cover (245) can be combined with the heating unit cover (213). A heating plate (241), a heater (242), a heater holder (243), and an insulating member (244) may be disposed on the lower side of the heating unit cover (213). The space enclosed by the heating unit cover (213), the lower cover (245), and the heating plate (241) may be called a heating space (S).

[0334] At least a portion of the water supply pipe (231) may be disposed in the heating space (S). The heating space (S) may form a space where the water supply pipe (231) can be disposed adjacent to the heating section (240). Accordingly, the water supply pipe (231) can receive heat from the heating section (240) while passing through the heating space (S).

[0335] The heating plate (241) can be attached to the lower cover (245). The heating plate (241) can be positioned so as to be exposed toward the roller (220) through an opening formed in the lower cover (245).

[0336] The heating unit (240) can be detachably coupled to the nozzle (200). The heating unit (240) can be detachably coupled to the housing (210). The heating plate (241) can be detachably installed in the housing (210).

[0337] The heating plate (241) can be detachably installed in the housing (210) as part of the heating unit (240). The heating plate (241) can be combined in a modular form with the heater (242) and the heater holder (243). The heating plate (241) can be positioned in the housing (210) while being supported by the heater holder (243).

[0338] The heating unit cover (213) can be connected to the upper housing (211) in a way that allows it to be opened and closed. The heating unit cover (213) can be opened and closed by a fastening structure. When the heating unit cover (213) is opened, the internal components of the heating unit (240) can be exposed to the outside.

[0339] Accordingly, the heating unit (240) can be easily maintained or replaced. Additionally, access to the heat transfer section (231a) where the water supply pipe (231) is located is easy, so that inspection, repair, and replacement of the section can be easily performed. Furthermore, assembly can be improved through the separation structure of the heating unit (240).

[0340] The nozzle (200) may further be equipped with a rear roller (250).

[0341] The rear roller (250) may be configured to rotate by friction with the ground.

[0342] Alternatively, the rear roller (250) may be configured as an active cleaning means that actively rotates by the transmission of driving force from a driving motor.

[0343] In this case, the rear roller (250) can be configured in the same way as the front roller (220).

[0344] For example, the rear roller (250) may include a driving part that rotates by receiving driving force, an elastic member that improves ground contact through the elastic deformation of the rear roller, and a cloth that wipes the surface to be cleaned.

[0345] Through this, the rear roller (250) can improve foreign matter removal and moisture treatment performance together with the roller (220).

[0346]

[0347] 2nd embodiment

[0348]

[0349] FIG. 11 illustrates a vacuum cleaner (1) according to a second embodiment of the present invention. The vacuum cleaner (1) may include a main body (100) and a nozzle (2200).

[0350] Meanwhile, to avoid redundant descriptions, other configurations may be adapted from the contents of the vacuum cleaner (1) according to one embodiment of the present invention, except for those specifically mentioned in the second embodiment of the present invention.

[0351] The nozzle (2200) may be equipped with a roller (220) and a rear roller (250).

[0352] The nozzle (2200) is positioned in the housing (210) and may be equipped with a roller (220) positioned at the front and a rear roller (250) positioned at the rear.

[0353] A moisture supply unit (230) according to the second embodiment of the present invention may be provided one each on the roller (220) and the rear roller (250).

[0354] A moisture supply unit (230) that supplies moisture toward the roller (220) can be defined as a first moisture supply unit, and a moisture supply unit that supplies moisture toward the rear roller (250) can be defined as a second moisture supply unit.

[0355] Each water supply unit (230) may include a water supply pipe (231) through which water flows, a diffuser housing (232) communicating with the water supply pipe (231), an inlet (233) formed in the diffuser housing (232) through which water flows in from the outside or from a fresh water tank, and an outlet (234) formed in the diffuser housing (232) through which water is discharged toward the roller (220) or the rear roller (250).

[0356] At this time, the first water supply unit and the second water supply unit may each include a water supply pipe (231), and the water supply pipe (231) may be formed as independent flow paths or as a structure branched from a single flow path.

[0357] The water supply pipe (231) of the first water supply unit may be positioned above the first heating unit, which will be described later. Additionally, the water supply pipe (231) of the second water supply unit may be positioned above the second heating unit, which will be described later. Optionally, the water supply pipe (231) may be positioned above only one of the first heating unit or the second heating unit.

[0358] According to a second embodiment of the present invention, a heating unit (240) may be provided, one on the upper side of the roller (220) and one on the upper side of the rear roller (250). Two heating units (240) may be provided and configured to heat the roller (220) and the rear roller (250), respectively.

[0359] The heating unit that heats the roller (220) can be defined as the first heating unit, and the heating unit that heats the rear roller (250) can be defined as the second heating unit.

[0360] Each heating unit (240) may include a heating plate (241) in contact with a roller (220) or a rear roller (250), a heater (242) that heats the heating plate (241), a heater holder (243) that supports the heater (242), an insulating member (244) that controls the heat transfer of the heater (242), and a lower cover (245) that protects the heating unit from the outside.

[0361] Specifically, two heating plates (241) may be provided and positioned to be in close contact with the outer surface of the roller (220) and the rear roller (250).

[0362] With this configuration, moisture can be supplied to the roller (220) and the rear roller (250) respectively, and heating can be achieved simultaneously. Accordingly, each roller (220, 250) can independently maintain a heated and wet state, and the cleaning power on the surface to be cleaned can be improved.

[0363] In addition, as the roller (220) and the rear roller (250) rotate in different directions and repeatedly rub against the surface to be cleaned, the efficiency of removing contaminants can be improved. In particular, contaminants that are not removed by the roller (220) can be additionally removed by the rear roller (250).

[0364] A suction port (212a) may be positioned in front of the rear roller (250). With this configuration, one suction port (212a) may be positioned at the rear of the roller (220) and one at the front of the rear roller (250).

[0365] After foreign substances are primarily removed or dispersed in a wet state by the suction port (212a) located at the front, the remaining contaminants and wastewater can be recovered through the suction port (212a) located at the rear.

[0366] Meanwhile, according to the second embodiment, a separate moisture supply unit (230) may be positioned in front of the heating unit (240), that is, between the rear roller (250) and the heating unit (240) or in the front area of ​​the rear roller (250).

[0367] The above-mentioned water supply unit (230) may be configured to finely spray or uniformly supply cleaning water by including a water supply pipe (231), a diffuser housing (232), an inlet (233), and an outlet (234).

[0368] In this case, the water supplied through the water supply unit (230) is first applied and spread on the bottom surface by the rear roller (250), and then heated by the heating unit (240), so that it can be changed into a hot water state or a high temperature wet state.

[0369] Accordingly, the efficiency of decomposition and removal of contaminants can be further improved. In addition, since the heated water evaporates quickly or is recovered through the suction port (212a), the amount of residual water on the floor surface after cleaning can be minimized.

[0370] The moisture near the rear roller (250) can be heated by such a heating unit (240) to lower the viscosity of the contaminants or promote drying, and can effectively remove moisture remaining on the floor surface. In particular, the performance of removing difficult contaminants such as oil stains can be improved by hot water or a heated cloth.

[0371] As a result, the nozzle (2200) according to the second embodiment can provide the effect of simultaneously improving cleaning performance and drying performance by continuously performing primary cleaning by the roller (220), secondary cleaning and moisture diffusion by the rear roller (250), heat treatment by the heating unit (240), and residue recovery by the suction port (212a).

[0372] Meanwhile, although not shown, the heating unit (240) may be provided only on the upper side of the rear roller (250). In this case, primary cleaning can be performed on the roller (220), and secondary cleaning can be performed through a cloth that is intensively heated on the rear roller (250), thereby improving the efficiency of removing residual moisture and contaminants.

[0373]

[0374] Pipe and handle

[0375]

[0376] The handle assembly may be composed of a pipe (300) and a handle (400).

[0377] The handle (400) may be provided so that it can be grasped by a user. Additionally, the pipe (300) may be connected to the handle (400) to transmit the operating force of the handle (400). In this case, one end (upper end) of the pipe (300) in the longitudinal direction may be connected to the handle (400), and the other end (lower end) of the pipe (300) in the longitudinal direction may be connected to the main body (100).

[0378] At this time, based on the state where the longitudinal direction of the pipe (300) is positioned perpendicular to the ground, the handle (400) can be formed in the shape of a ring positioned at the top along the longitudinal direction of the pipe (300).

[0379] A gripping portion having a downward slope toward the front may be formed on the upper part of the handle (400). The gripping portion may have a shape inclined forward with respect to the central axis of the pipe (300). The gripping portion may include a curved shape so that the user's hand can rest naturally on it.

[0380] Through this, the user can easily operate the pipe (300) in the forward and backward directions by rotating the wrist or moving the forearm while holding the gripping portion of the handle (400). Accordingly, the action of pushing or pulling the nozzle (200) can be easily performed, and the user's fatigue can be reduced.

[0381] Meanwhile, according to an embodiment, an input section for inputting commands may be provided on the handle (400). For example, at least one button may be provided on the handle (400). For example, a button for turning the power on / off may be provided on the handle (400). Additionally, a button for controlling the rotation speed of the mop or the output of the suction motor may be provided on the handle (400).

[0382] Therefore, the user has the advantage of being able to press the button while holding the handle (400) and easily control the vacuum cleaner (1).

[0383] The pipe (300) may be formed in a hollow shape. This reduces the overall weight and improves the user's handling feel. Meanwhile, according to an embodiment, a wire may pass through the interior of the pipe (300). At this time, the wire may transmit an electrical signal transmitted from an input unit located on the handle (400).

[0384]

[0385] Although the present invention has been described in detail through specific embodiments, this is for the purpose of specifically explaining the invention and is not limited thereto. It is evident that modifications or improvements can be made by those skilled in the art within the technical scope of the present invention.

[0386] All simple variations or modifications of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

Claims

A housing having an intake port formed for sucking in fluid; A roller rotatably coupled to the above housing; A moisture supply unit provided in the above housing and supplying moisture to the roller; and A heating part that heats the roller by contacting at least a portion of the roller; Includes, The heating unit above is, A heating plate in contact with the outer surface of the above roller; Includes, The above moisture supply unit is, A water supply pipe through which water discharged by the above roller flows; Includes, The above water supply pipe is, A vacuum cleaner characterized in that at least a portion is positioned on the upper side of the heating plate. In paragraph 1, The above housing is, Upper housing; A lower housing coupled to the lower side of the upper housing and forming a space inside; and A heating unit cover positioned at the front or rear of the upper housing and covering the upper side of the heating unit; Includes, The above water supply pipe is, A vacuum cleaner characterized in that at least a portion is accommodated in a heating space formed between the heating plate and the heating part cover. In paragraph 1, The above water supply pipe is, A heating section positioned on the upper side of the above heating plate; Includes, The above heating section is, A vacuum cleaner characterized by being formed by bending at least once. In paragraph 1, The heating unit above is, A vacuum cleaner characterized by being detachably coupled to the above-mentioned housing. In paragraph 1, The heating unit above is, A heater disposed on the upper side of the heating plate; and A heater holder positioned above the heater to accommodate the heater; A vacuum cleaner including In paragraph 5, The above housing is, A heating part cover covering the upper side of the heater holder; A vacuum cleaner including In paragraph 5, The heating unit above is, An insulating member disposed between the heater holder and the heater; A vacuum cleaner including In paragraph 1, The above heating plate is, A vacuum cleaner characterized by having irregularities formed on the surface in contact with the roller. In paragraph 1, The above heating plate is, A vacuum cleaner characterized by applying elastic force toward the above roller. In paragraph 1, The above moisture supply unit is, A diffuser housing with a water flow path formed inside; An inlet formed in the diffuser housing and coupled to the water supply pipe; and A discharge port formed in the diffuser housing and discharging water toward the upper side of the roller; Includes, The above discharge port is, A vacuum cleaner characterized by having a plurality of units arranged in a direction intersecting the driving direction of the above-mentioned housing. In paragraph 1, The heating unit above is, A heater positioned on the upper side of the heating plate; Includes, The above heater is, A vacuum cleaner characterized by having a plurality of units arranged in a direction intersecting the driving direction of the above-mentioned housing. In paragraph 1, The above roller is, A drive unit operated by a motor provided in the above housing; An elastic member disposed on the outer side of the above-mentioned driving unit; and A mop detachably attached to the outer side of the above elastic member and cleaning by contacting the surface to be cleaned; A vacuum cleaner including In Paragraph 12, The above elastic member is, An inner cylinder in contact with the above-mentioned driving unit; An outer cylinder to which the above-mentioned mop is detachably attached; and A support member connecting the inner cylinder and the outer cylinder; Includes, The above support member is, A vacuum cleaner characterized by including a curved surface. In Paragraph 13, The above support member is, A plurality of vacuum cleaners arranged along the circumference of the inner cylinder. In Paragraph 13, The above support member is, A vacuum cleaner characterized by elastic deformation when an external force is applied. In paragraph 1, The above housing is, A lower housing in which the above-mentioned suction port is formed; An upper housing coupled to the upper side of the lower housing and forming a space inside; Includes, The lower housing above is, A guide member positioned at the rear of the above-mentioned intake port to guide the inflow of gas or liquid; A squeegee extending from the end of the guide member toward the surface to be cleaned; A vacuum cleaner including A housing having an intake port formed for sucking in fluid; A roller rotatably coupled to the above housing; A moisture supply unit including a discharge port for supplying moisture to the above roller; and A heating plate that contacts the outer surface of the roller to heat the roller; Includes, A vacuum cleaner characterized in that the water supplied to the discharge port flows over the upper side of the heating plate. A housing having an intake port formed for sucking in fluid; A roller rotatably coupled to the above housing; A rear roller spaced apart from the rear of the above roller and rotatably coupled to the housing; A first heating member that heats the roller by contacting at least a portion of the roller; and A second heating unit that heats the roller by contacting at least a portion of the rear roller; A vacuum cleaner including

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