阅读说明：本技术 一种蒸汽发生器及无线蒸汽拖把 (Steam generator and wireless steam mop ) 是由 杨进 于 2021-08-06 设计创作，主要内容包括：本发明公开了一种蒸汽发生器及无线蒸汽拖把,涉及家用地面清洁装置领域。本蒸汽发生器包括盒体和电加热片,盒体具有入水口、蒸汽出口以及水槽；电加热片设置于所述水槽的口部,电加热片采用金属-石墨烯复合电加热片,所述水槽包括曲折结构,使得从所述入水口进入的水流经过所述水槽到达所述蒸汽出口时,能够被所述电加热片加热而转变为蒸汽；所述蒸汽发生器还包括防出水机构,所述防出水机构用于阻止在所述蒸汽出口流出水。本无线蒸汽拖把包括上述的蒸汽发生器。本蒸汽发生器能够在避免蒸汽发生器启动时蒸汽出口漏水和电加热片干烧的前提下,实时输出蒸汽。(The invention discloses a steam generator and a wireless steam mop, and relates to the field of household floor cleaning devices. The steam generator comprises a box body and an electric heating sheet, wherein the box body is provided with a water inlet, a steam outlet and a water tank; the electric heating sheet is arranged at the opening of the water tank, the electric heating sheet is a metal-graphene composite electric heating sheet, and the water tank comprises a zigzag structure, so that water entering from the water inlet can be heated by the electric heating sheet and converted into steam when passing through the water tank and reaching the steam outlet; the steam generator further comprises a water outlet prevention mechanism, and the water outlet prevention mechanism is used for preventing water from flowing out of the steam outlet. The wireless steam mop comprises the steam generator. This steam generator can be when avoiding steam generator start-up under the prerequisite of steam outlet water leakage and electric heating plate dry combustion method, real-time output steam.)

1. A steam generator comprising:

a box body, which is provided with a water inlet, a steam outlet and a water tank which is arranged on the inner wall of the box body and is communicated with the water inlet and the steam outlet; and

an electric heating sheet arranged at the mouth of the water tank;

the method is characterized in that:

the electric heating sheet is a metal-graphene composite electric heating sheet, and the water tank comprises a zigzag structure, so that water entering from the water inlet can be heated by the electric heating sheet and converted into steam when passing through the water tank to reach the steam outlet;

the steam generator further comprises a water outlet prevention mechanism, and the water outlet prevention mechanism is used for preventing water from flowing out of the steam outlet.

2. The steam generator of claim 1, further comprising a magnetizer disposed at a side of the water inlet for magnetizing the water flow entering the case.

3. The steam generator of claim 1, further comprising an ultrasonic transducer disposed on the cartridge body facing the water tank for atomizing water in the water tank.

4. The steam generator of claim 1,

the water tank is arranged at the top of the base of the box body and is of a spiral structure;

the steam outlet is arranged at the center of the spiral structure, and the water inlet is arranged at the outer edge of the spiral structure; or the water inlet is arranged at the center of the spiral structure, and the steam outlet is arranged at the outer edge of the spiral structure.

5. The steam generator of claim 4, wherein the cartridge comprises:

a ceramic base; and

a ceramic cover plate;

the water inlet, the steam outlet and the water tank are arranged on the ceramic base, the electric heating piece is pressed between the ceramic cover plate and the ceramic base, a sealing ring is arranged between the periphery of the electric heating piece and the ceramic base and between the ceramic cover plate, and a high-temperature-resistant sealing material is filled and sealed between the periphery of the ceramic cover plate and the ceramic base.

6. The steam generator of claim 5, wherein the inner surface of the ceramic cover plate has a plurality of protrusions by which the ceramic cover plate is in abutting engagement with the electrical heating strips.

7. The steam generator of claim 1, wherein the water egress prevention mechanism comprises a check valve disposed at the water inlet and a steam valve disposed at the steam outlet.

8. The steam generator of claim 7, wherein the steam valve is a pressure valve having an opening threshold set to: the opening threshold of the pressure valve is smaller than or equal to the pressure in the water tank when the fluid at the steam outlet is in a gaseous state and is larger than the pressure in the water tank when the fluid at the steam outlet is in a liquid state.

9. The steam generator of claim 7,

the steam valve is an electromagnetic valve,

the steam generator further includes:

an identifier that identifies whether the fluid at an end of the water tank near the steam outlet is in a liquid state; and

and the controller is used for controlling the electromagnetic valve to enter a closed state when the identification result of the identifier is liquid.

10. The steam generator of claim 9, wherein the identifier comprises a pressure sensor.

11. The steam generator of claim 9, wherein the identifier comprises a timer that counts the time the electrical heater chip enters the powered state.

12. The steam generator according to claim 1, wherein the electrodes of the steam generator are electrically connected in physical contact with the electric heating strips, the electric heating strips being provided with positioning rods cooperating with the cover plate of the cartridge for preventing the electric heating strips from rotating relative to the cover plate.

13. A cordless steam mop, comprising:

a steam generator configured to spray steam towards a wipe of the cleaning surface and/or floor brush;

a fresh water vessel configured to supply a source of water to the steam generator;

the method is characterized in that:

the steam generator is according to any one of claims 1 to 12;

the wireless steam mop is also provided with a battery pack for supplying power to the steam generator.

Technical Field

The invention relates to the field of household floor cleaning devices, in particular to a steam generator and a wireless steam mop adopting the steam generator.

Background

The steam mop can spray steam to the cleaning surface, so that the steam mop has the function of disinfecting the cleaning surface and can effectively remove stubborn stains which cannot be removed by common clear water.

However, the process of changing water into steam needs to consume a large amount of electric energy and wait for a long time, which seriously restricts the popularization and application of the steam mop, in particular to a wireless steam mop. To this end, it is being studied to add a small steam generator which is supplied with water through a fresh water container on the mop and which is used to convert the water into steam in real time, thereby reducing the power requirements and reducing the time to wait for the water to be converted into steam.

The small-sized steam generator generally adopts a ceramic heating plate as an electric heating plate, and particularly relates to an electric heating plate formed by printing a graphene heating wire on a ceramic substrate, which is referred to as MCH for short. Such small steam generators still suffer from the following technical drawbacks: firstly, the electric heating sheet has short service life and is easy to break; secondly, when the steam generator is started, water in the steam generator is not converted into steam, so that the steam generator can spray water for a short time, namely, a phenomenon of water leakage at a steam outlet exists.

In order to solve the second technical defect, people are studying a scheme that when the steam generator is started, an electric heating plate of the small-sized steam generator is started first, after the electric heating plate is preheated, a water pump is started, water is input into the small-sized steam generator, and water flow is converted into steam to be output after passing through the electric heating plate. The scheme effectively solves the second technical defect, but brings a new technical problem three, namely: each start-up will dry-burn the electrical heating plate, which will seriously affect the service life of the steam generator.

Accordingly, there is a need for a steam generator suitable for use with cordless steam mops.

Disclosure of Invention

The invention aims to provide a steam generator which can output steam in real time on the premise of avoiding water leakage at a steam outlet in a starting stage of the steam generator and avoiding dry burning of an electric heating plate and is suitable for a wireless steam mop.

The inventor finds through research and practice that the reasons that the MCH electric heating plate is easy to break in use are that the difference of the thermal expansion coefficients of ceramic and graphene is large, and the brittleness of the ceramic material is large. On the basis of this, further studies have proposed the following steam generator.

The present invention provides a steam generator including:

a box body, which is provided with a water inlet, a steam outlet and a water tank which is arranged on the inner wall of the box body and is communicated with the water inlet and the steam outlet; and

an electric heating sheet arranged at the mouth of the water tank;

the electric heating sheet is a metal-graphene composite electric heating sheet, and the water tank comprises a zigzag structure, so that water entering from the water inlet passes through the water tank and reaches the steam outlet, and can be heated by the electric heating sheet and converted into steam;

the steam generator further comprises a water outlet prevention mechanism, and the water outlet prevention mechanism is used for preventing water from flowing out of the steam outlet.

In the above steam generator, preferably, the steam generator further includes a magnetizer disposed at a side portion of the water inlet, for magnetizing the water flow entering the case.

In the above steam generator, preferably, the steam generator further includes an ultrasonic transducer, and the ultrasonic transducer is disposed on the box body facing the water tank and is configured to atomize the water in the water tank.

In the above steam generator, preferably, the water tank is disposed on the top of the base of the box body, and has a spiral structure; the steam outlet is arranged at the center of the spiral structure, and the water inlet is arranged at the outer edge of the spiral structure; or the water inlet is arranged at the center of the spiral structure, and the steam outlet is arranged at the outer edge of the spiral structure.

In the above steam generator, preferably, the cartridge includes: a ceramic base; and a ceramic cover plate; the water inlet, the steam outlet and the water tank are arranged on the ceramic base, the electric heating piece is pressed between the ceramic cover plate and the ceramic base, a sealing ring is arranged between the periphery of the electric heating piece and the ceramic base and between the ceramic cover plate, and a high-temperature-resistant sealing material is filled and sealed between the periphery of the ceramic cover plate and the ceramic base.

In the above steam generator, preferably, the ceramic cover plate has a plurality of protrusions on an inner surface thereof, and the ceramic cover plate is in abutting engagement with the electric heating plate through the protrusions.

In the above steam generator, preferably, the water outflow prevention mechanism includes a check valve provided at the water inlet and a steam valve provided at the steam outlet.

In the above steam generator, preferably, the steam valve is a pressure valve, and the opening threshold of the pressure valve is set as follows: the opening threshold of the pressure valve is smaller than or equal to the pressure in the water tank when the fluid at the steam outlet is in a gaseous state and is larger than the pressure in the water tank when the fluid at the steam outlet is in a liquid state.

In the above steam generator, preferably, the steam valve is an electromagnetic valve, and the steam generator further includes: an identifier that identifies whether the fluid at an end of the water tank near the steam outlet is in a liquid state; and when the identification result of the identifier is liquid, the controller controls the electromagnetic valve to enter a closed state. The identifier preferably comprises a pressure sensor. The identifier also preferably includes a timer that counts the time that the electrical heating blade enters the powered state.

In the above steam generator, preferably, the electrodes of the steam generator are electrically connected to the electric heating plate in a physical contact manner, and the electric heating plate is provided with a positioning rod which is matched with the cover plate of the box body and is used for preventing the electric heating plate from rotating relative to the cover plate.

The present invention also provides a wireless steam mop, comprising:

a steam generator configured to spray steam towards a wipe of the cleaning surface and/or floor brush;

a fresh water vessel configured to supply a source of water to the steam generator;

wherein the steam generator is the steam generator according to any one of the above items; the wireless steam mop is also provided with a battery pack for supplying power to the steam generator.

Compared with the prior art, the invention has at least the following beneficial effects:

compared with an MCH electric heating sheet, the metal-graphene composite electric heating sheet has the advantages that the metal-graphene composite electric heating sheet is adopted by the steam generator, the base material of the metal-graphene composite electric heating sheet is a metal sheet, the toughness is good, the thermal expansion coefficient is closer to that of graphene, and therefore the metal-graphene composite electric heating sheet is not easy to break and long in service life. Meanwhile, the metal substrate has the characteristics of high temperature rise speed and high heat conduction speed, so that the time for water vaporization is further shortened, and particularly the time for waiting for water vaporization in the starting stage is shortened. The metal-graphene composite electric heating sheet is matched with the bent structure of the water tank, so that steam can be output from the steam outlet in real time.

This steam generator is provided with prevents out water mechanism for at the start-up stage, when feed water pump and electric heating plate add power on simultaneously, perhaps add power on for electric heating plate with the power on the feed water pump earlier, the steam outlet can not take place the phenomenon of leaking again, consequently can avoid adding the dry combustion method phenomenon that leads to for electric heating plate with the power on earlier at the start-up stage.

The combination of the metal-graphene composite electric heating sheet, the bent structure of the water tank and the water outlet prevention mechanism shortens the time for waiting for water vaporization in the starting stage of the steam generator, steam can be output at a steam outlet in real time after the steam generator is started, and the phenomena of water leakage of the steam outlet and dry burning of the electric heating sheet cannot occur in the starting stage, so that the industrialization of the wireless steam mop is facilitated.

Drawings

Fig. 1 is a perspective view of a steam generator;

FIG. 2 is a sectional view thereof;

FIG. 3 is an exploded view thereof;

FIG. 4 is a diagram of the relative positions of the water tank, water inlet and vapor outlet;

FIG. 5 is a schematic view of the structure of the inner surface of the cover plate;

FIG. 6 is a schematic view of a cordless steam mop;

FIG. 7 is a schematic view of the steam supply system of the present cordless steam mop;

reference numerals:

10. a steam generator;

11. a cover plate; 111. a protrusion; 12. an electrical heating sheet; 121. positioning a rod; 13. an electrode; 131. a spring; 14. a fixed seat; 15. a seal ring; 16. a high temperature resistant sealing material; 17. a steam valve; 18. a check valve; 19. a base; 191. a steam outlet; 192. a water tank; 193. a water inlet;

20. a floor brush;

30. a recovery vessel;

40. a body;

50. a clear water container;

60. a handle;

70. a battery pack;

80. a pump;

90. and a control device.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1 to 5, the steam generator 10 includes a case and an electric heating plate 12.

The cartridge comprises a ceramic base 19 and a ceramic cover 11 which in combination form the cartridge. The ceramic base 19 is provided with a water inlet 193 for introducing water into the case, a steam outlet 191 for discharging steam from the case, and a water tank 192 for communicating the water inlet 193 and the steam outlet 191. Compared with a base and a cover plate made of high-temperature-resistant plastics or metal materials, the base 19 and the cover plate 11 made of ceramic materials are adopted, so that the cost is greatly reduced, the resources are saved, the heating loss is greatly reduced, and the high-efficiency and energy-saving steam generation is facilitated.

The electric heating plate 12 is pressed between the ceramic cover plate 11 and the ceramic base 19, so that the electric heating plate 12 is supported at the mouth of the water tank 192, and in the process that water flows along the water tank 192 from the water inlet 193 to the steam outlet 191, the electric heating plate 12 can heat the water flow, so that the water flow is vaporized and converted into steam, and finally, the steam outlet 191 outputs the steam.

A sealing ring 15 is provided between the periphery of the electric heating plate 12 and the ceramic base 19 and the ceramic cover plate 11 to allow water to flow along the water tank 192 to the steam outlet 191 without leakage.

A high-temperature-resistant sealing material 16, such as alumina or magnesia, is filled between the periphery of the ceramic cover plate 11 and the ceramic base 19. Compared with the method that the gap between the ceramic cover plate 11 and the ceramic base 19 is sealed by rubber and other materials, the gap is filled and sealed by the high-temperature-resistant sealing material 16, and the method has the characteristics of good ageing resistance and prolonged service life.

The ceramic cover plate 11 has a plurality of protrusions 111 on the inner surface thereof, and the ceramic cover plate 11 is in butt fit with the electric heating plate 12 through the protrusions 111, so that the contact area between the electric heating plate 12 and the ceramic cover plate 11 is reduced, the volume of a gap between the electric heating plate 12 and the ceramic cover plate 11 is increased, the heat energy of the electric heating plate 12 is reduced from being conducted outwards through the ceramic cover plate 11, and the heat loss is reduced.

A water channel 192 is formed on top of the ceramic base 19 and includes a serpentine configuration. It should be noted that the term "tortuous structure" is to be understood broadly in this application in relation to a straight water channel, i.e. the water inlet 193 and the steam outlet 191 are not connected by the shortest distance. In this embodiment, the water tank 192 of the ceramic base 19 has a spiral structure, the steam outlet 191 is disposed at the center of the spiral structure, and the water inlet 193 is disposed at the outer edge of the spiral structure. In operation, the temperature of the water in the water tank 192 tends to increase gradually in the direction from the water inlet 193 to the steam outlet 191, which results in lower temperature of the cartridge and lower thermal energy loss closer to the water inlet 193 and higher temperature of the cartridge and higher thermal energy loss closer to the steam outlet 191. The water tank 192 adopting the spiral structure effectively shortens the straight distance between the water inlet 193 and the steam outlet 191, and the water tank 192 surrounds the steam outlet 191, thereby effectively reducing the heat energy loss. It will be appreciated that a similar effect can be achieved by locating the water inlet 193 in the centre of the spiral and the steam outlet 191 at the outer edge of the spiral.

The electric heating sheet 12 is a metal-graphene composite electric heating sheet. The metal serving as the base material is preferably a stainless steel plate, the surface of the metal base material is coated with an insulating layer, the insulating layer is preferably a high-temperature-resistant insulating material such as high-temperature-resistant silica gel, aluminum oxide, magnesium oxide and the like, graphene is printed or silk-screened on the insulating layer, and a graphene heating wire matched with the shape and the size of the opening of the water tank 192 is formed.

Compared with an MCH electric heating sheet, the metal-graphene composite electric heating sheet has the advantages that the base material is a metal sheet, the toughness is good, the thermal expansion coefficient is closer to that of graphene, the metal-graphene composite electric heating sheet is not easy to break, and the service life is long. Meanwhile, the metal substrate has the characteristics of high temperature rise speed and high heat conduction speed, so that the time for water vaporization is further shortened, and particularly the time for waiting for water vaporization in the starting stage is shortened. And the zigzag structure of the water tank 192 greatly increases the time for the water to reach the steam outlet 191 after entering from the water inlet 193. The metal-graphene composite electric heating sheet 12 is matched with the zigzag structure of the water tank 192, so that when water entering from the water inlet 193 passes through the water tank 192 to reach the steam outlet 191, the water can be heated by the electric heating sheet 12 and converted into steam, namely, the steam can be output at the steam outlet 191 in real time.

The two electrodes 13 of the present steam generator 10 are electrically connected to the electric heating sheet 12 in a physical contact manner. Specifically, a fixing seat 14 is fixed on the cover plate 11, springs 131 are respectively installed between the inner ends of the two electrodes 13 and the fixing seat 14, and the inner ends of the two electrodes 13 are in reliable physical contact with graphene on the electric heating sheet 12 by using the elastic force of the springs 131, so that the electrodes 13 are electrically connected with the electric heating sheet 12. Further still be provided with locating lever 121 at electric heating plate 12, locating lever 121 and the hole cooperation on the apron 11, avoid electric heating plate 12 relative apron 11 rotary motion, further guaranteed the reliable electricity of electrode 13 with electric heating plate 12 and be connected. Compared with a welded connection mode, the physical contact electric connection mode adopted by the embodiment enables the connection part of the electrode 13 and the electric connection sheet to be more difficult to break down after the steam generator 10 is used for a long time.

The steam generator further includes a water outflow preventing mechanism for preventing water from flowing out at the steam outlet 191. The water outflow prevention mechanism specifically includes a check valve 18 provided at the water inlet 193 and a steam valve 17 provided at the steam outlet 191.

The check valve 18 is used to prevent water in the case from flowing out of the water inlet 193. The check valve 18 may be any of various conventional check valves.

Wherein the steam valve 17 is used for controlling the steam to be output from the steam outlet 191, and the water cannot be output from the steam outlet 191.

As an embodiment, the steam valve 17 is a pressure valve, and the opening threshold of the pressure valve is set as follows: the opening threshold of the pressure valve is less than or equal to the pressure in the water tank 192 when the fluid at the steam outlet 191 is in a gaseous state, and is greater than the pressure in the water tank 192 when the fluid at the steam outlet 191 is in a liquid state. Here, the natural law is used that the pressure in the container increases when the water is vaporized to be steam, with the volume being constant. When the fluid in the water tank 192 corresponding to the steam outlet 191 is in a gaseous state, the air pressure in the water tank 192 is increased, the steam valve 17 is automatically conducted under the action of the larger air pressure, and the steam is output from the steam outlet 191 after passing through the steam valve 17; when the fluid in the water tank 192 corresponding to the steam outlet 191 is in a liquid state, the air pressure in the water tank 192 is small, and the steam valve 17 is closed by the small air pressure, so that the water does not leak from the steam outlet 191.

As another embodiment, the steam valve 17 is an electromagnetic valve, and the steam generator 10 further includes: an identifier that identifies whether the fluid in the end of the water tank 192 near the steam outlet 191 is in a liquid state; and when the identification result of the identifier is liquid, the controller controls the electromagnetic valve to enter a closed state.

The identifier is preferably a pressure sensor, and the controller judges whether the fluid is in a liquid state or a gaseous state according to the priori knowledge of the state of the fluid corresponding to the pressure value by utilizing the pressure value output by the pressure sensor.

The identifier is preferably a timer which counts the time of the electric heating plate 12 entering the power-on state, and the controller judges the state of the fluid in the box body according to the prior knowledge of the power-on time required by the electric heating plate 12 from the start of power-on to the time of switching the water in the box body from the liquid state to the gas state by utilizing the counted time of the timer.

When the controller determines that the fluid in the box body is in a liquid state through the identifier, the controller controls the electromagnetic valve to enter a closed state, so that water leakage from the steam outlet 191 is avoided.

The steam valve 17 and the check valve 18 are matched, so that the steam generator 10 does not leak water from the steam outlet 191 in the starting stage of the steam generator 10, and when the water supply pump 80 and the electric heating plate 12 are powered on simultaneously, or the water supply pump 80 is powered on first and then the electric heating plate 12 is powered on. That is, in the starting stage of the steam generator 10, the heater strips do not need to be powered up first, and when the electric heater strips 12 are preheated and then the water pump 80 is used for adding water into the steam generator 10, water leakage from the steam outlet 191 of the steam generator 10 can also be avoided. The control sequence effectively avoids the dry burning phenomenon caused by electrifying the electric heating sheet 12 in the starting stage, and can effectively prolong the service life.

It can be seen that the combined application of the metal-graphene composite electric heating sheet 12, the bent structure of the water tank 192, the steam valve 17 and the check valve 18 shortens the time for waiting for water vaporization in the starting stage of the steam generator 10, steam can be output at the steam outlet 191 in real time after the steam generator is started, and the phenomena of water leakage of the steam outlet 191 and dry burning of the electric heating sheet 12 cannot occur in the starting stage, so that the industrialization of the wireless steam mop is facilitated.

Some materials have the property of being permeable to vapor and impermeable to water. The water outlet prevention mechanism of the steam generator can also adopt the materials, and the materials are arranged at the steam outlet 191, so that the aim of preventing water from flowing out of the steam outlet 191 can be fulfilled.

As a more preferred embodiment, the steam generator 10 further includes a magnetizer disposed at a side of the water inlet 193 for magnetizing the water flowing into the case. The magnetization reduces the impurities entering the box body, so that the probability of scale generation in the steam generator 10 is reduced, and the service life is prolonged.

As a more preferable embodiment, the steam generator 10 further includes an ultrasonic transducer, which is disposed on the box body facing the water tank 192 and is used for atomizing the water in the water tank 192. After the atomization treatment, the contact area of water and the electric heating sheet 12 is spread, thereby greatly shortening the time for converting water into steam.

A cordless steam mop is shown in fig. 6.

This wireless steam mop includes: the floor brush comprises a body 40, a floor brush 20 and a handle 60, wherein the floor brush 20 is hinged at the bottom end of the body 40, the angle between the body 40 and the floor brush 20 can be adjusted relative to the hinged part, the handle 60 is arranged at the top end of the body 40, and a control key is arranged on the handle 60.

The body 40 is provided with a clean water container 50 and a recovery container 30, wherein the clean water container 50 is a clean water tank, and the recovery container 30 is a sewage tank.

The wireless steam mop also comprises the steam generator 10 of the above embodiment, the steam generator 10 can be arranged on the top of the floor brush 20 or inside the floor brush 20, and the steam generator 10 can also be arranged on the machine body 40.

The steam supply system of the present cordless steam mop is shown in fig. 7. The electrical signal is shown in dashed lines, water or steam is shown in dashed lines, and the flow direction is shown by the arrows. Referring to fig. 7, the water inlet 193 of the steam generator 10 is communicated with the clean water container 50 through the pump 80, a water source is supplied to the water tank 192 of the steam generator 10 through the pump 80, and the steam outlet 191 of the steam generator 10 is connected to the air nozzle of the floor brush 20 through a pipe. Wherein the air nozzles can be arranged towards the surface of the brush roll of the floor brush 20 and can also be arranged towards the cleaning ground, and one part of the air nozzles can also be arranged towards the surface of the brush roll of the floor brush 20 and the other part of the air nozzles can be arranged towards the cleaning ground.

The electric heating plates 12 and the pump 80 of the steam generator 10 operate under the control of the control device 90: when the start key is pressed, the control device 90 controls the pump 80 and the electric heating plate 12 to be electrified simultaneously, or the pump 80 is electrified firstly and then the electric heating plate 12 is electrified, the pump 80 inputs the water in the clean water container 50 into the steam generator 10, the electric heating plate 12 heats the water in the steam generator 10 and converts the water into steam, at the moment, the steam valve 17 is switched on, and the steam is output to the cleaning cloth for cleaning the floor or the floor brush 20 from the steam outlet 191 through the steam valve 17, or is output to the cleaning cloth for cleaning the floor and the floor brush 20 simultaneously.

A battery pack 70 is disposed in the body 40, and the battery pack 70 supplies power to the steam generator 10, the pump 80, and other electrical components of the steam mop.

The present invention has been described in detail with reference to the specific embodiments, and the detailed description is only for the purpose of helping those skilled in the art understand the present invention, and is not to be construed as limiting the scope of the present invention. Various modifications, equivalent changes, etc. made by those skilled in the art under the spirit of the present invention shall be included in the protection scope of the present invention.